/* ============================================================================
   echohive — "Instrument & Ink"
   A laboratory notebook rendered as an instrument panel.

   Serif statements  ·  mono instrumentation  ·  sans working text
   Three trajectory signals: aqua (AI mastery) / amber (Markets) / iris (Mind)

   Legacy custom properties and legacy component class names from growth.css
   are preserved so the interactive article pages under /posts keep rendering.
   ========================================================================= */

/* --------------------------------------------------------------- 01 tokens */
:root {
    /* ink */
    --ink: #05070a;
    --ink-2: #080b0f;
    --ink-3: #0b1015;
    --panel: rgba(14, 19, 25, 0.72);
    --panel-2: rgba(19, 25, 32, 0.9);
    --panel-solid: #0e1319;
    --panel-raised: rgba(24, 31, 39, 0.86);

    /* hairlines */
    --line: rgba(214, 233, 228, 0.10);
    --line-2: rgba(214, 233, 228, 0.20);
    --line-3: rgba(214, 233, 228, 0.34);
    --line-strong: rgba(214, 233, 228, 0.20);

    /* type colour */
    --paper: #eef3f0;
    --muted: #9aa8a4;
    --dim: #6d7a76;

    /* trajectory signals */
    --aqua: #77e2cd;
    --amber: #f2b455;
    --iris: #b0a2fb;
    --acid: #d5f77a;
    --rose: #ff9f84;

    /* legacy aliases — used by /posts article stylesheets */
    --mint: #77e2cd;
    --cyan: #79d5e8;
    --violet: #b0a2fb;
    --gold: #f2b455;
    --magenta: #e79ae6;
    --sky: #86c1ff;
    --ember: #ff9f84;

    /* geometry */
    --r-xs: 4px;
    --r-sm: 7px;
    --r: 12px;
    --r-lg: 18px;
    --radius: 12px;
    --shell: 1200px;
    --gutter: clamp(18px, 4vw, 34px);

    /* type */
    --serif: "Instrument Serif", "Iowan Old Style", Georgia, "Times New Roman", serif;
    --sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

    /* motion */
    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    --lift: 0 24px 60px -28px rgba(0, 0, 0, 0.85);
}

*, *::before, *::after { box-sizing: border-box; }
/* `clip` (not `hidden`) keeps position: sticky working on the header while still
   preventing a stray wide child from creating a horizontal scrollbar. */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: clip;
    color: var(--paper);
    background: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: -0.005em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: inherit; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: rgba(119, 226, 205, 0.26); color: #ffffff; }
section[id], div[id] { scroll-margin-top: 104px; }

:focus-visible {
    outline: 2px solid var(--aqua);
    outline-offset: 3px;
    border-radius: var(--r-xs);
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 300;
    padding: 10px 16px;
    border-radius: var(--r-sm);
    background: var(--paper);
    color: var(--ink);
    font-family: var(--mono);
    font-size: 0.78rem;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform 180ms var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* --------------------------------------------------------- 02 ambient field */
.field-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}
.field-dots,
.field-bloom,
.field-scan { position: absolute; display: block; }

.field-dots {
    inset: 0;
    opacity: 0.5;
    background-image: radial-gradient(rgba(214, 233, 228, 0.13) 0.8px, transparent 0.9px);
    background-size: 26px 26px;
    mask-image: radial-gradient(120% 85% at 50% 0%, black 5%, transparent 72%);
    -webkit-mask-image: radial-gradient(120% 85% at 50% 0%, black 5%, transparent 72%);
}
.field-bloom {
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.5;
}
.bloom-a {
    top: -18vh; right: -12vw;
    width: 62vw; height: 62vw; max-width: 900px; max-height: 900px;
    background: radial-gradient(circle, rgba(119, 226, 205, 0.16), transparent 66%);
    animation: drift-a 34s ease-in-out infinite alternate;
}
.bloom-b {
    top: 42vh; left: -20vw;
    width: 58vw; height: 58vw; max-width: 820px; max-height: 820px;
    background: radial-gradient(circle, rgba(176, 162, 251, 0.14), transparent 66%);
    animation: drift-b 41s ease-in-out infinite alternate;
}
.bloom-c {
    bottom: -22vh; right: 8vw;
    width: 46vw; height: 46vw; max-width: 700px; max-height: 700px;
    background: radial-gradient(circle, rgba(242, 180, 85, 0.09), transparent 68%);
    animation: drift-a 47s ease-in-out infinite alternate-reverse;
}
.field-scan {
    inset: 0;
    background: linear-gradient(180deg, rgba(5, 7, 10, 0) 0%, rgba(5, 7, 10, 0.55) 62%, var(--ink) 100%);
}
@keyframes drift-a { to { transform: translate3d(-5vw, 6vh, 0) scale(1.12); } }
@keyframes drift-b { to { transform: translate3d(7vw, -5vh, 0) scale(1.08); } }

/* ----------------------------------------------------------- 03 typography */
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.03em; line-height: 1.14; }
p { margin: 0; }

.is-marketing h1,
.is-marketing h2 {
    font-family: var(--serif);
    font-weight: 400;
    letter-spacing: -0.018em;
}
.is-marketing h1 em,
.is-marketing h2 em {
    font-style: italic;
    color: var(--aqua);
}
.is-marketing h1 {
    font-size: clamp(2.6rem, 4.9vw, 4.35rem);
    line-height: 1.04;
}
.is-marketing h2 {
    font-size: clamp(2rem, 3.9vw, 3.35rem);
    line-height: 1.06;
}
.is-marketing h3 { font-size: 1.16rem; letter-spacing: -0.02em; }

.lede {
    margin-top: 20px;
    max-width: 60ch;
    font-size: clamp(1.03rem, 1.35vw, 1.2rem);
    line-height: 1.62;
    color: var(--muted);
}
.is-marketing .eyebrow + h1,
.is-marketing .eyebrow + h2 { margin-top: 20px; }

.hero-lede,
.section-lede {
    margin-top: 22px;
    max-width: 60ch;
    font-size: clamp(1.02rem, 1.3vw, 1.16rem);
    line-height: 1.62;
    color: var(--muted);
}
.note {
    font-size: 0.86rem;
    line-height: 1.55;
    color: var(--dim);
}

/* mono instrumentation labels */
.kicker,
.eyebrow,
.section-index,
.signal-label,
.tier-kicker,
.experiment-type,
.stat-label,
.meta-label {
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}
.eyebrow,
.kicker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    margin: 0;
    color: var(--aqua);
}
.section-index { display: block; margin: 0 0 16px; color: var(--dim); }
.section-index b { color: var(--aqua); font-weight: 500; }

.pulse-dot {
    flex: none;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--acid);
    box-shadow: 0 0 0 4px rgba(213, 247, 122, 0.09), 0 0 14px rgba(213, 247, 122, 0.55);
    animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.4; transform: scale(0.7); } }

/* ------------------------------------------------------------- 04 layout */
.section-shell {
    width: min(var(--shell), calc(100% - (var(--gutter) * 2)));
    margin-inline: auto;
}
.band { padding-block: clamp(56px, 6.4vw, 94px); }
.band-tight { padding-block: clamp(42px, 4.6vw, 66px); }

.rule {
    position: relative;
    height: 1px;
    border: 0;
    margin: 0;
    background: linear-gradient(90deg, var(--line-2), transparent 82%);
}
.rule::after {
    content: "";
    position: absolute;
    left: 0;
    top: -2px;
    width: 46px;
    height: 5px;
    background: linear-gradient(90deg, var(--aqua), transparent);
    opacity: 0.7;
}

/* section head */
.section-head { max-width: 900px; }
.section-head h2 { max-width: 20ch; }
.section-head > p { margin-top: 18px; }
.section-head-row {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(24px, 4vw, 60px);
    max-width: none;
}
.section-head-row > p { margin: 0; padding-bottom: 6px; }

/* --------------------------------------------------------------- 05 panels */
.panel {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--r);
    backdrop-filter: blur(14px) saturate(1.1);
    -webkit-backdrop-filter: blur(14px) saturate(1.1);
}
/* crop-mark corner ticks — the instrument bezel */
.ticked::before,
.ticked::after {
    content: "";
    position: absolute;
    width: 11px;
    height: 11px;
    border: 1px solid var(--line-3);
    pointer-events: none;
    transition: border-color 260ms var(--ease);
}
.ticked::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.ticked::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* -------------------------------------------------------------- 06 buttons */
.button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: var(--r-sm);
    font-family: var(--mono);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: transform 200ms var(--ease), background 200ms var(--ease),
                border-color 200ms var(--ease), box-shadow 200ms var(--ease), color 200ms var(--ease);
}
.button span[aria-hidden] { transition: transform 220ms var(--ease); }
.button:hover span[aria-hidden] { transform: translateX(3px); }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }

.button-primary {
    color: #05100d;
    background: linear-gradient(180deg, #ffffff, #dff3ec);
    box-shadow: 0 0 0 1px rgba(119, 226, 205, 0.22), 0 16px 40px -22px rgba(119, 226, 205, 0.7);
}
.button-primary:hover {
    background: linear-gradient(180deg, #ffffff, #ffffff);
    box-shadow: 0 0 0 1px rgba(119, 226, 205, 0.5), 0 22px 52px -20px rgba(119, 226, 205, 0.85);
}
.button-secondary,
.button-quiet {
    color: var(--paper);
    border-color: var(--line-2);
    background: rgba(238, 243, 240, 0.03);
}
.button-secondary:hover,
.button-quiet:hover {
    border-color: rgba(119, 226, 205, 0.55);
    background: rgba(119, 226, 205, 0.07);
}
.button-ghost {
    color: var(--muted);
    border-color: transparent;
    background: transparent;
    padding-inline: 4px;
}
.button-ghost:hover { color: var(--paper); }
.button-small { min-height: 42px; padding: 0 16px; font-size: 0.75rem; }
.button-block { width: 100%; }

/* Preferred conversion action: saturated enough to read immediately, with one
   quiet halo beat per cycle rather than a continuous scale animation. */
.button-cta {
    position: relative;
    color: #06110e;
    border-color: rgba(210, 255, 244, 0.76);
    background: linear-gradient(112deg, #a2eed9 0%, #8cdeea 60%, #bdb1fa 130%);
    box-shadow:
        0 0 0 1px rgba(119, 226, 205, 0.16),
        0 18px 46px -22px rgba(119, 226, 205, 0.78);
}
.button-cta:hover {
    color: #020806;
    border-color: rgba(238, 255, 250, 0.96);
    background: linear-gradient(112deg, #bcf7e6 0%, #a6eaf1 60%, #cabfff 130%);
    box-shadow:
        0 0 0 1px rgba(210, 255, 244, 0.28),
        0 24px 58px -20px rgba(121, 213, 232, 0.92);
}
.button-cta::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 0 0 0 rgba(119, 226, 205, 0);
    animation: cta-halo 6.4s ease-out infinite;
}
@keyframes cta-halo {
    0%, 76%, 100% {
        opacity: 0;
        box-shadow: 0 0 0 0 rgba(119, 226, 205, 0);
    }
    85% {
        opacity: 1;
        box-shadow:
            0 0 0 6px rgba(119, 226, 205, 0.09),
            0 0 28px 2px rgba(121, 213, 232, 0.2);
    }
    93% {
        opacity: 0;
        box-shadow:
            0 0 0 10px rgba(176, 162, 251, 0.01),
            0 0 34px 3px rgba(176, 162, 251, 0.04);
    }
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 30px;
}
.button-row-center { justify-content: center; }

/* text links */
.text-link,
.quiet-link,
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    color: var(--paper);
    text-decoration: none;
    border-bottom: 1px solid var(--line-2);
    padding-bottom: 3px;
    transition: color 200ms var(--ease), border-color 200ms var(--ease), gap 200ms var(--ease);
}
.text-link:hover,
.quiet-link:hover,
.card-link:hover { color: var(--aqua); border-color: var(--aqua); gap: 13px; }
.quiet-link { color: var(--muted); }

/* trust microcopy */
.trust-line {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    color: var(--dim);
}
.trust-line span { display: inline-flex; align-items: center; gap: 7px; }
.trust-line span::before {
    content: "";
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--line-3);
}
.billing-trust {
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: var(--dim);
}

/* --------------------------------------------------------------- 07 header */
.site-header {
    position: sticky;
    top: 12px;
    z-index: 120;
    width: min(var(--shell), calc(100% - (var(--gutter) * 2)));
    margin: 12px auto 0;
    min-height: 62px;
    padding: 0 12px 0 18px;
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 18px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    background: rgba(5, 7, 10, 0.72);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    transition:
        top 220ms var(--ease),
        min-height 220ms var(--ease),
        padding 220ms var(--ease),
        border-radius 220ms var(--ease),
        background 220ms var(--ease),
        border-color 220ms var(--ease),
        box-shadow 220ms var(--ease);
}
.site-header.is-scrolled {
    top: 8px;
    min-height: 54px;
    padding-inline: 14px 10px;
    border-radius: 14px;
    background: rgba(5, 7, 10, 0.93);
    border-color: var(--line-2);
    box-shadow: 0 20px 50px -30px rgba(0, 0, 0, 0.95);
}
.site-header.is-scrolled .brand { font-size: .94rem; }
.site-header.is-scrolled .brand-mark { width: 22px; height: 22px; }
.site-header.is-scrolled .nav-link { padding-block: 7px; }
.nav-progress {
    position: absolute;
    left: 14px;
    bottom: -1px;
    height: 1px;
    width: calc((100% - 28px) * var(--page-progress, 0));
    border-radius: 999px;
    background: linear-gradient(90deg, var(--aqua), var(--amber) 62%, var(--iris));
    box-shadow: 0 0 10px rgba(119, 226, 205, 0.5);
    transition: width 90ms linear;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.02rem;
    letter-spacing: -0.045em;
    color: var(--paper);
}
.brand-mark {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    image-rendering: pixelated;
    box-shadow: 0 0 0 1px rgba(119, 226, 205, 0.2), 0 0 18px rgba(119, 226, 205, 0.14);
    transition: transform 400ms var(--ease), box-shadow 400ms var(--ease);
}
.brand:hover .brand-mark { transform: translateY(-2px) rotate(-4deg); box-shadow: 0 0 0 1px rgba(119, 226, 205, 0.45), 0 0 26px rgba(119, 226, 205, 0.28); }

.site-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(4px, 1vw, 14px);
}
.nav-link {
    position: relative;
    padding: 9px 10px;
    border-radius: var(--r-xs);
    font-size: 0.845rem;
    font-weight: 500;
    color: var(--muted);
    text-decoration: none;
    white-space: nowrap;
    transition: color 190ms var(--ease);
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 3px;
    height: 1px;
    background: var(--aqua);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 220ms var(--ease);
}
.nav-link:hover { color: var(--paper); }
.nav-link:hover::after,
.nav-link.is-active::after { transform: scaleX(1); }
.nav-link.is-active { color: var(--paper); }

.header-actions { display: flex; align-items: center; gap: 8px; }
/* the in-menu CTA only exists for the mobile drawer */
.site-nav .nav-cta { display: none; }

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line-2);
    border-radius: var(--r-xs);
    background: transparent;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 16px;
    height: 1.5px;
    background: var(--paper);
    transition: transform 220ms var(--ease), opacity 180ms var(--ease);
}
.site-header.menu-open .menu-toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
.site-header.menu-open .menu-toggle span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* --------------------------------------------------------------- 08 footer */
.site-footer {
    width: min(var(--shell), calc(100% - (var(--gutter) * 2)));
    margin: clamp(60px, 8vw, 110px) auto 0;
    padding: clamp(38px, 4vw, 58px) 0 34px;
    border-top: 1px solid var(--line);
}
.footer-grid {
    display: grid;
    grid-template-columns: minmax(240px, 1.3fr) repeat(3, minmax(0, 1fr));
    gap: clamp(26px, 4vw, 54px);
}
.footer-brand p {
    margin-top: 16px;
    max-width: 34ch;
    font-size: 0.9rem;
    color: var(--muted);
}
.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 22px;
}
.footer-social a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 13px;
    border: 1px solid var(--line);
    border-radius: var(--r-xs);
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--muted);
    text-decoration: none;
    transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}
.footer-social a:hover { color: var(--paper); border-color: var(--line-3); background: rgba(238, 243, 240, 0.04); }

.footer-col h3 {
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a {
    font-size: 0.88rem;
    color: var(--muted);
    text-decoration: none;
    transition: color 180ms var(--ease);
}
.footer-col a:hover { color: var(--aqua); }

.footer-base {
    margin-top: clamp(30px, 4vw, 46px);
    padding-top: 22px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--dim);
}

/* ---------------------------------------------------- 09 mobile CTA capsule */
/* A single floating pill rather than a docked bar: it reserves no layout space,
   stays out of the way until the reader has actually committed to the page, and
   can be dismissed. Dismissal is deliberately per page view — no persistence. */
.mobile-cta {
    position: fixed;
    left: 50%;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    z-index: 110;
    display: none;
    align-items: center;
    gap: 2px;
    width: max-content;
    max-width: calc(100% - 24px);
    padding: 4px 6px 4px 4px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    background: rgba(5, 7, 10, 0.92);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    box-shadow: 0 18px 44px -24px rgba(0, 0, 0, 0.95);
    transform: translate(-50%, 0);
    transition: transform 320ms var(--ease), opacity 220ms var(--ease);
}
/* JS takes ownership only once it runs, so the pill still renders without it. */
.mobile-cta.is-managed {
    opacity: 0;
    transform: translate(-50%, calc(100% + 24px));
    pointer-events: none;
}
.mobile-cta.is-managed.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
    pointer-events: auto;
}
.mobile-cta[hidden] { display: none; }

.mobile-cta-body {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-width: 0;
    padding: 6px 5px 6px 14px;
    border-radius: 999px;
    color: var(--paper);
    text-decoration: none;
    transition: background 200ms var(--ease);
}
.mobile-cta-body:active { background: rgba(238, 243, 240, 0.06); }
.mobile-cta-body strong {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mobile-cta-body small {
    flex: none;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
    white-space: nowrap;
}
.mobile-cta-go {
    flex: none;
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 999px;
    background: var(--aqua);
    color: var(--ink);
    font-size: 0.8rem;
    line-height: 1;
}
.mobile-cta-dismiss {
    flex: none;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    margin-left: 2px;
    padding: 0;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    color: var(--dim);
    cursor: pointer;
    transition: color 180ms var(--ease);
}
.mobile-cta-dismiss:hover,
.mobile-cta-dismiss:focus-visible { color: var(--paper); }

/* ------------------------------------------- 09b field-note reading map */
/* Any sticky sub-navigation inside an article parks itself under the header by
   reading --map-top. The header owns that number: when it condenses the map
   follows it up, and when the mobile header leaves entirely the map takes over
   the space it vacated — then steps back down the moment the header returns. */
main { --map-top: 86px; }
.site-header.is-scrolled + main { --map-top: 74px; }

.field-map {
    position: sticky;
    top: var(--map-top);
    z-index: 108;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 13px;
    margin-top: -30px;
    margin-bottom: 30px;
    padding: 9px 12px 10px;
    overflow: hidden;
    border: 1px solid var(--line-2);
    border-radius: 16px;
    background: rgba(7, 11, 15, 0.88);
    backdrop-filter: blur(19px) saturate(1.16);
    -webkit-backdrop-filter: blur(19px) saturate(1.16);
    box-shadow: 0 18px 55px -36px rgba(0, 0, 0, 0.95), 0 1px 0 rgba(238, 244, 240, 0.04) inset;
    transition: top 300ms var(--ease);
}
.field-map::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1px;
    width: calc(100% * var(--map-progress, 0));
    background: linear-gradient(90deg, var(--aqua), var(--iris));
    transition: width 260ms var(--ease);
}
.field-map ~ section[id],
.field-map ~ section [id],
.field-map ~ div section[id] { scroll-margin-top: calc(var(--map-top) + 86px); }

.field-map-state {
    min-width: 88px;
    display: grid;
    gap: 2px;
    padding-right: 12px;
    border-right: 1px solid var(--line);
}
.field-map-state span,
.field-map-state strong,
.field-map-scroll a span {
    font-family: var(--mono);
    font-weight: 500;
    letter-spacing: 0.11em;
}
.field-map-state span { font-size: 0.52rem; color: var(--dim); white-space: nowrap; }
.field-map-state strong { font-size: 0.65rem; color: var(--aqua); white-space: nowrap; }

.field-map-scroll {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 3px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    scroll-snap-type: x proximity;
}
.field-map-scroll::-webkit-scrollbar { display: none; }
.field-map-scroll a {
    flex: 0 0 auto;
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 10px;
    border: 1px solid transparent;
    border-radius: 11px;
    color: var(--muted);
    font-size: 0.69rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    scroll-snap-align: center;
    transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}
.field-map-scroll a span { font-size: 0.5rem; color: var(--dim); transition: color 180ms var(--ease); }
.field-map-scroll a:hover,
.field-map-scroll a.is-active {
    color: var(--paper);
    border-color: rgba(119, 226, 205, 0.22);
    background: linear-gradient(135deg, rgba(119, 226, 205, 0.1), rgba(176, 162, 251, 0.04));
}
.field-map-scroll a.is-active span { color: var(--aqua); }

/* ----------------------------------------------------------- 10 home hero */
.hero {
    position: relative;
    padding-top: clamp(52px, 6vw, 92px);
    padding-bottom: clamp(40px, 5vw, 66px);
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
    align-items: center;
    gap: clamp(36px, 5vw, 76px);
}
.hero-copy h1 { max-width: 17ch; margin-top: 22px; }
.hero-copy .hero-lede { margin-top: 24px; }

.hero-signals {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 30px;
}
.hero-signals span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    color: var(--muted);
}
.hero-signals span::before {
    content: "";
    width: 5px; height: 5px;
    border-radius: 50%;
    background: currentColor;
}
.hero-signals .sig-ai { color: var(--aqua); border-color: rgba(119, 226, 205, 0.28); }
.hero-signals .sig-markets { color: var(--amber); border-color: rgba(242, 180, 85, 0.28); }
.hero-signals .sig-mind { color: var(--iris); border-color: rgba(176, 162, 251, 0.28); }

/* live lab instrument */
.lab-instrument {
    padding: 24px;
    display: grid;
    gap: 18px;
}
.instrument-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}
.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    color: var(--acid);
}
.live-badge i {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--acid);
    box-shadow: 0 0 10px rgba(213, 247, 122, 0.8);
    animation: pulse 2.2s ease-in-out infinite;
}

.instrument-dial {
    position: relative;
    display: grid;
    place-items: center;
    height: 148px;
    margin: 4px 0;
}
.instrument-dial .ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--line-2);
}
.instrument-dial .ring-1 { inset: 0 auto auto auto; width: 148px; height: 148px; border-style: dashed; animation: spin 46s linear infinite; }
.instrument-dial .ring-2 { width: 108px; height: 108px; border-color: rgba(119, 226, 205, 0.28); animation: spin 28s linear infinite reverse; }
.instrument-dial .ring-2::after {
    content: "";
    position: absolute;
    top: -3px; left: 50%;
    width: 5px; height: 5px;
    margin-left: -2.5px;
    border-radius: 50%;
    background: var(--aqua);
    box-shadow: 0 0 12px rgba(119, 226, 205, 0.9);
}
.instrument-dial .core {
    position: relative;
    font-family: var(--serif);
    font-size: 2.1rem;
    letter-spacing: -0.03em;
    color: var(--paper);
}
@keyframes spin { to { transform: rotate(360deg); } }

.instrument-time {
    display: block;
    font-family: var(--sans);
    font-size: 1.06rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}
.lab-countdown {
    margin-top: 6px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--aqua);
}
.instrument-agenda {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 9px;
}
.instrument-agenda li {
    display: grid;
    grid-template-columns: 22px 1fr;
    align-items: baseline;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--muted);
}
.instrument-agenda li span {
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--dim);
}
.instrument-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}
.instrument-foot small {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    color: var(--dim);
}

/* ------------------------------------------------------------ 11 proof bar */
.proof-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border: 1px solid var(--line);
    border-radius: var(--r);
    overflow: hidden;
    background: linear-gradient(180deg, rgba(238, 243, 240, 0.035), rgba(238, 243, 240, 0.008));
}
.proof-stat {
    padding: 24px 20px;
    border-right: 1px solid var(--line);
    display: grid;
    gap: 7px;
    align-content: start;
}
.proof-stat:last-child { border-right: 0; }
.proof-stat strong {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.7rem, 2.5vw, 2.3rem);
    line-height: 1;
    letter-spacing: -0.02em;
}
.proof-stat span {
    font-family: var(--mono);
    font-size: 0.66rem;
    line-height: 1.5;
    letter-spacing: 0.07em;
    color: var(--dim);
    text-transform: uppercase;
}

/* ---------------------------------------------------------- 12 start ladder */
.ladder {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    counter-reset: rung;
}
.rung {
    position: relative;
    padding: 26px 24px 24px;
    display: grid;
    align-content: start;
    gap: 12px;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
    transition: border-color 240ms var(--ease), transform 240ms var(--ease), background 240ms var(--ease);
}
.rung:hover { transform: translateY(-3px); border-color: var(--line-2); }
.rung-step {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    color: var(--dim);
    display: flex;
    align-items: center;
    gap: 10px;
}
.rung-step b {
    display: inline-grid;
    place-items: center;
    width: 24px; height: 24px;
    border-radius: 50%;
    border: 1px solid var(--line-2);
    font-weight: 500;
    color: var(--paper);
}
.rung h3 { font-size: 1.24rem; }
.rung p { font-size: 0.93rem; color: var(--muted); }
.rung .card-link { margin-top: 4px; align-self: start; }
.rung-price {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--aqua);
    letter-spacing: 0.05em;
}
.rung-featured {
    background: linear-gradient(180deg, rgba(119, 226, 205, 0.07), rgba(14, 19, 25, 0.72) 55%);
    border-color: rgba(119, 226, 205, 0.3);
}
.rung-featured .rung-step b { border-color: rgba(119, 226, 205, 0.5); color: var(--aqua); }

/* ------------------------------------------------------- 13 trajectories */
.trajectory-grid {
    margin-top: 46px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.trajectory-card {
    position: relative;
    padding: 28px 26px 30px;
    display: grid;
    align-content: start;
    gap: 14px;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
    overflow: hidden;
    transition: transform 280ms var(--ease), border-color 280ms var(--ease);
}
.trajectory-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 2px;
    background: var(--accent, var(--aqua));
    opacity: 0.75;
}
.trajectory-card::after {
    content: "";
    position: absolute;
    inset: auto -30% -60% auto;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent, var(--aqua)), transparent 70%);
    opacity: 0.07;
    transition: opacity 320ms var(--ease);
}
.trajectory-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.trajectory-card:hover::after { opacity: 0.16; }
.trajectory-ai { --accent: var(--aqua); }
.trajectory-markets { --accent: var(--amber); }
.trajectory-mind { --accent: var(--iris); }
.trajectory-top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.13em;
    color: var(--dim);
}
.trajectory-top span { color: var(--accent, var(--aqua)); font-size: 0.8rem; }
.trajectory-card h3 { font-size: 1.4rem; }
.trajectory-promise { font-size: 0.98rem; color: var(--paper); font-weight: 500; }
.trajectory-card > p:not(.trajectory-promise) { font-size: 0.92rem; color: var(--muted); }
.trajectory-card ul {
    list-style: none;
    margin: 4px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}
.trajectory-card li {
    padding: 5px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.67rem;
    color: var(--dim);
}

/* ------------------------------------------------------------- 14 paths */
.path-grid {
    margin-top: 46px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.path-card {
    position: relative;
    padding: 32px 30px 34px;
    display: grid;
    align-content: start;
    gap: 16px;
    border-radius: var(--r-lg);
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(238, 243, 240, 0.04), transparent 46%),
        var(--panel);
    overflow: hidden;
    transition: border-color 280ms var(--ease), transform 280ms var(--ease);
}
.path-card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.path-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--dim);
}
.path-topline span:first-child { color: var(--aqua); }
.path-card-lab .path-topline span:first-child { color: var(--amber); }
.path-glyph {
    font-family: var(--serif);
    font-size: 3.1rem;
    line-height: 1;
    color: var(--aqua);
    opacity: 0.85;
}
.path-card-lab .path-glyph { color: var(--amber); }
.path-card h3 { font-size: 1.9rem; font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em; }
.path-card > p { font-size: 0.96rem; color: var(--muted); }
.path-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 7px; }
.path-tags li {
    padding: 5px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.67rem;
    color: var(--dim);
}
.lab-sequence { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.lab-sequence li {
    display: grid;
    grid-template-columns: 26px 1fr;
    gap: 10px;
    align-items: baseline;
    font-size: 0.92rem;
    color: var(--muted);
}
.lab-sequence li span { font-family: var(--mono); font-size: 0.66rem; color: var(--amber); }
.path-card .card-link { margin-top: 6px; justify-self: start; }

/* --------------------------------------------------------- 15 experiments */
.experiments-head { display: grid; gap: 22px; }
.experiment-grid {
    margin-top: 42px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}
.experiment-card {
    position: relative;
    padding: 24px 22px 22px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    min-height: 232px;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
    text-decoration: none;
    overflow: hidden;
    transition: transform 300ms var(--ease), border-color 300ms var(--ease), background 300ms var(--ease);
}
.experiment-card::after {
    content: "";
    position: absolute;
    inset: auto -40% -70% -10%;
    height: 190px;
    background: radial-gradient(60% 100% at 30% 100%, var(--accent, var(--aqua)), transparent 72%);
    opacity: 0.06;
    transition: opacity 320ms var(--ease);
    pointer-events: none;
}
.experiment-card:hover {
    transform: translateY(-5px);
    border-color: rgba(119, 226, 205, 0.35);
    background: var(--panel-2);
}
.experiment-card:hover::after { opacity: 0.18; }
.experiment-card:hover.ticked::before,
.experiment-card:hover.ticked::after { border-color: var(--accent, var(--aqua)); }
.experiment-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    background: rgba(238, 243, 240, 0.03);
}
.experiment-icon img { width: 24px; height: 24px; }
.experiment-icon b {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.25rem;
    line-height: 1;
    color: var(--accent, var(--aqua));
}
.experiment-type {
    color: var(--accent, var(--aqua));
    font-size: 0.64rem;
}
.experiment-card h3 { font-size: 1.16rem; font-weight: 600; letter-spacing: -0.025em; }
.experiment-card p { font-size: 0.89rem; line-height: 1.55; color: var(--muted); }
.experiment-action {
    margin-top: auto;
    align-self: end;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--paper);
}
.experiment-card .experiment-action span { transition: transform 240ms var(--ease); }
.experiment-card:hover .experiment-action span { transform: translate(3px, -3px); }

.acc-aqua { --accent: var(--aqua); }
.acc-amber { --accent: var(--amber); }
.acc-iris { --accent: var(--iris); }
.acc-acid { --accent: var(--acid); }
.acc-rose { --accent: var(--rose); }
.acc-sky { --accent: var(--sky); }
.acc-magenta { --accent: var(--magenta); }

.experiments-footer {
    margin-top: 26px;
    padding: 22px 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    background: rgba(238, 243, 240, 0.02);
}
.experiments-footer p { max-width: 62ch; font-size: 0.93rem; color: var(--muted); }
.experiments-footer strong { color: var(--paper); font-weight: 600; }

/* -------------------------------------------------------- 16 field notes */
.field-layout {
    margin-top: 42px;
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.85fr);
    gap: clamp(20px, 3vw, 40px);
    align-items: start;
}
.field-list { display: grid; gap: 2px; }
.field-note {
    position: relative;
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
    padding: 22px 18px 22px 4px;
    border-bottom: 1px solid var(--line);
    text-decoration: none;
    transition: padding 260ms var(--ease), background 260ms var(--ease);
}
.field-note:first-child { border-top: 1px solid var(--line); }
.field-note:hover { padding-left: 14px; background: rgba(238, 243, 240, 0.022); }
.field-date {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--dim);
    text-transform: uppercase;
}
.field-title { font-size: 1.06rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.35; }
.field-excerpt { display: block; margin-top: 5px; font-size: 0.87rem; font-weight: 400; color: var(--muted); }
.field-note > span[aria-hidden] { color: var(--dim); transition: color 220ms var(--ease), transform 220ms var(--ease); }
.field-note:hover > span[aria-hidden] { color: var(--aqua); transform: translate(3px, -3px); }

.free-card {
    padding: 28px 26px;
    display: grid;
    gap: 14px;
    align-content: start;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(176, 162, 251, 0.08), rgba(14, 19, 25, 0.72) 60%);
}
.free-card h3 { font-size: 1.28rem; font-family: var(--serif); font-weight: 400; }
.free-card p { font-size: 0.9rem; color: var(--muted); }

/* -------------------------------------------------------- 17 testimonial */
.testimonial {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: center;
    padding: clamp(30px, 4vw, 50px);
    border-radius: var(--r-lg);
    border: 1px solid var(--line);
    background:
        radial-gradient(80% 120% at 0% 0%, rgba(119, 226, 205, 0.08), transparent 60%),
        var(--panel);
}
.testimonial blockquote {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.4rem, 2.3vw, 2.05rem);
    line-height: 1.28;
    letter-spacing: -0.02em;
}
.testimonial-meta { margin-top: 24px; display: grid; gap: 6px; }
.testimonial-meta strong { font-size: 0.98rem; }
.testimonial-meta span { font-size: 0.86rem; color: var(--muted); }
.testimonial-side { display: grid; gap: 14px; align-content: start; }
.testimonial-side .kicker { color: var(--dim); }
.testimonial-arc { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.testimonial-arc li {
    display: grid;
    grid-template-columns: 24px 1fr;
    gap: 10px;
    align-items: baseline;
    font-size: 0.89rem;
    color: var(--muted);
}
.testimonial-arc li span { font-family: var(--mono); font-size: 0.65rem; color: var(--aqua); }
.testimonial-links { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px 22px; }

/* ------------------------------------------------------------- 18 pricing */
.tier-grid {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}
.tier-card {
    position: relative;
    padding: 32px 30px 30px;
    display: grid;
    align-content: start;
    gap: 15px;
    border-radius: var(--r-lg);
    border: 1px solid var(--line);
    background: var(--panel);
    transition: border-color 260ms var(--ease), transform 260ms var(--ease);
}
.tier-card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.tier-card-featured {
    border-color: rgba(119, 226, 205, 0.36);
    background:
        radial-gradient(120% 90% at 50% 0%, rgba(119, 226, 205, 0.11), transparent 62%),
        var(--panel-2);
    box-shadow: var(--lift);
}
.recommended-mark {
    position: absolute;
    top: -1px;
    left: 30px;
    transform: translateY(-50%);
    padding: 6px 13px;
    border-radius: 999px;
    background: var(--aqua);
    color: #05100d;
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    white-space: nowrap;
}
.tier-kicker { color: var(--dim); }
.tier-card h3 { font-size: 1.75rem; font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em; }
.tier-price { display: flex; align-items: baseline; gap: 9px; }
.tier-price strong {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2.6rem, 4vw, 3.4rem);
    line-height: 1;
    letter-spacing: -0.03em;
}
.tier-price span { font-family: var(--mono); font-size: 0.75rem; color: var(--dim); }
.tier-promise { font-size: 0.98rem; color: var(--paper); }
.tier-list { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 10px; }
.tier-list li {
    display: grid;
    grid-template-columns: 16px 1fr;
    gap: 11px;
    align-items: start;
    font-size: 0.92rem;
    color: var(--muted);
}
.tier-list li::before {
    content: "";
    margin-top: 8px;
    width: 8px; height: 8px;
    border-radius: 2px;
    border: 1px solid var(--aqua);
    background: rgba(119, 226, 205, 0.24);
}
.tier-list li.is-excluded { color: var(--dim); }
.tier-list li.is-excluded::before { border-color: var(--line-2); background: none; }
.tier-card .button { margin-top: 8px; }
.tier-boundary {
    font-size: 0.85rem;
    color: var(--dim);
    padding-top: 4px;
}
.tier-boundary-positive { color: var(--aqua); }

.pricing-aside {
    margin-top: 26px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

/* ---------------------------------------------------------------- 19 FAQ */
.faq-grid {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    overflow: hidden;
}
.faq-grid article {
    padding: 26px 24px;
    display: grid;
    gap: 10px;
    align-content: start;
    background: rgba(238, 243, 240, 0.018);
    outline: 1px solid var(--line);
    transition: background 240ms var(--ease);
}
.faq-grid article:hover { background: rgba(238, 243, 240, 0.045); }
.faq-grid h3 { font-size: 1.03rem; font-weight: 600; letter-spacing: -0.02em; }
.faq-grid p { font-size: 0.9rem; color: var(--muted); }

/* Accordion variant: the whole question set stays scannable in one screen and
   the answers are there when wanted. Uses <details>, so it works without JS. */
.faq-list { margin-top: 36px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 21px 4px;
    cursor: pointer;
    list-style: none;
    font-size: 1.02rem;
    font-weight: 500;
    letter-spacing: -0.015em;
    transition: color 200ms var(--ease);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--aqua); }
.faq-list summary:focus-visible { outline: 2px solid var(--aqua); outline-offset: 3px; border-radius: 4px; }
/* The marker is drawn as a plus that rotates into a minus when open. */
.faq-list summary i {
    position: relative;
    flex: 0 0 auto;
    width: 13px;
    height: 13px;
    transition: transform 300ms var(--ease);
}
.faq-list summary i::before,
.faq-list summary i::after {
    content: "";
    position: absolute;
    inset: 50% 0 auto;
    height: 1px;
    background: var(--line-3);
}
.faq-list summary i::after { transform: rotate(90deg); transition: opacity 220ms var(--ease); }
.faq-list details[open] summary { color: var(--paper); }
/* Open state drops the vertical stroke: plus becomes minus, not a close cross. */
.faq-list details[open] summary i::after { opacity: 0; }
.faq-list details[open] summary i::before { background: var(--aqua); }
.faq-list details > p {
    padding: 0 60px 24px 4px;
    max-width: 76ch;
    font-size: 0.92rem;
    line-height: 1.68;
    color: var(--muted);
}

/* ------------------------------------------------------------ 20 closing */
.closing {
    position: relative;
    text-align: center;
    padding-block: clamp(72px, 9vw, 130px);
}
.closing h2 { max-width: 20ch; margin-inline: auto; }
.closing .eyebrow { justify-content: center; margin-bottom: 22px; }
.closing-line {
    width: 1px;
    height: 60px;
    margin: 0 auto 28px;
    background: linear-gradient(180deg, transparent, var(--aqua));
}
.closing .trust-line { justify-content: center; margin-top: 22px; }

/* ------------------------------------------------- 21 get amplified page */
.amplified-hero {
    padding-top: clamp(48px, 5.5vw, 84px);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.95fr);
    align-items: center;
    gap: clamp(34px, 5vw, 72px);
}
.triad-panel { padding: 26px 24px; display: grid; gap: 18px; }
.triad-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}
.triad-head strong { display: block; margin-top: 6px; font-size: 1.05rem; font-weight: 600; }
.triad-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.13em;
    color: var(--acid);
}
.triad-status i { width: 5px; height: 5px; border-radius: 50%; background: var(--acid); animation: pulse 2.4s ease-in-out infinite; }
.channel-stack { display: grid; gap: 8px; }
.channel {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 14px 15px;
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    text-decoration: none;
    background: rgba(238, 243, 240, 0.015);
    transition: border-color 240ms var(--ease), background 240ms var(--ease), transform 240ms var(--ease);
}
.channel:hover { border-color: var(--accent, var(--aqua)); background: rgba(238, 243, 240, 0.05); transform: translateX(3px); }
.channel-index { font-family: var(--mono); font-size: 0.72rem; color: var(--accent, var(--aqua)); }
.channel-copy { display: grid; gap: 2px; }
.channel-copy strong { font-size: 0.96rem; font-weight: 600; }
.channel-copy small { font-family: var(--mono); font-size: 0.66rem; color: var(--dim); }
.channel-arrow { color: var(--dim); }
.triad-outcome {
    padding: 18px 16px;
    border-radius: var(--r-sm);
    border: 1px solid var(--line);
    background: linear-gradient(120deg, rgba(119, 226, 205, 0.08), rgba(176, 162, 251, 0.07));
    display: grid;
    gap: 10px;
}
.triad-outcome strong { font-family: var(--serif); font-weight: 400; font-size: 1.3rem; }
.triad-formula {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--muted);
}
.triad-formula b { color: var(--aqua); }

.chapter-filters {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.filter-button {
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: transparent;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    color: var(--muted);
    cursor: pointer;
    transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}
.filter-button:hover { color: var(--paper); border-color: var(--line-2); }
.filter-button.is-active { color: var(--ink); background: var(--paper); border-color: var(--paper); }
.filter-ai.is-active { background: var(--aqua); border-color: var(--aqua); }
.filter-markets.is-active { background: var(--amber); border-color: var(--amber); }
.filter-mind.is-active { background: var(--iris); border-color: var(--iris); }

.chapter-grid {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}
.chapter-card {
    position: relative;
    padding: 24px 22px;
    display: grid;
    align-content: start;
    gap: 12px;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
    text-decoration: none;
    transition: transform 260ms var(--ease), border-color 260ms var(--ease), background 260ms var(--ease);
}
.chapter-card:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--panel-2); }
.chapter-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--dim);
}
.chapter-meta span:first-child { color: var(--accent, var(--aqua)); }
.chapter-card h3 { font-size: 1.14rem; font-weight: 600; letter-spacing: -0.025em; line-height: 1.32; }
.chapter-description { font-size: 0.9rem; color: var(--muted); }
.chapter-footer {
    margin-top: 4px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--dim);
}
.chapter-card:hover .chapter-footer span:last-child { color: var(--aqua); }

.archive-note {
    margin-top: 26px;
    padding: 24px 26px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    background: rgba(238, 243, 240, 0.02);
}
.archive-note strong { display: block; margin-bottom: 6px; font-size: 1rem; }
.archive-note p { max-width: 56ch; font-size: 0.9rem; color: var(--muted); }
.archive-actions { display: flex; flex-wrap: wrap; gap: 18px; }

.rhythm-grid {
    margin-top: 42px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.rhythm-grid article {
    padding: 26px 24px;
    display: grid;
    gap: 11px;
    align-content: start;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
}
.rhythm-grid article > span {
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.16em;
    color: var(--aqua);
}
.rhythm-grid h3 { font-size: 1.14rem; font-weight: 600; }
.rhythm-grid p { font-size: 0.9rem; color: var(--muted); }

/* --------------------------------------------------------- 22 1000x lab */
.lab-hero {
    padding-top: clamp(48px, 5.5vw, 84px);
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    align-items: center;
    gap: clamp(34px, 5vw, 72px);
}
.next-session {
    padding: 26px 24px;
    display: grid;
    gap: 14px;
    align-content: start;
}
.next-session .instrument-time { margin-top: 4px; }
.session-prompt {
    margin-top: 4px;
    padding: 16px;
    border-radius: var(--r-sm);
    border: 1px dashed var(--line-2);
    font-size: 0.9rem;
    color: var(--muted);
    background: rgba(238, 243, 240, 0.015);
}

.format-grid {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    overflow: hidden;
}
.format-grid article {
    padding: 28px 24px;
    display: grid;
    gap: 12px;
    align-content: start;
    outline: 1px solid var(--line);
    background: rgba(238, 243, 240, 0.018);
    transition: background 260ms var(--ease);
}
.format-grid article:hover { background: rgba(119, 226, 205, 0.05); }
.format-grid article > span {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--amber);
}
.format-grid h3 { font-size: 1.08rem; font-weight: 600; }
.format-grid p { font-size: 0.89rem; color: var(--muted); }

.replay-list { margin-top: 42px; display: grid; gap: 14px; }
.replay-card {
    display: grid;
    grid-template-columns: 130px minmax(0, 1.5fr) minmax(0, 0.85fr);
    gap: clamp(18px, 3vw, 34px);
    padding: 26px 26px;
    border-radius: var(--r);
    border: 1px solid var(--line);
    background: var(--panel);
    text-decoration: none;
    transition: border-color 260ms var(--ease), transform 260ms var(--ease), background 260ms var(--ease);
}
.replay-card:hover { border-color: rgba(242, 180, 85, 0.4); background: var(--panel-2); transform: translateY(-3px); }
.replay-stamp { display: grid; gap: 6px; align-content: start; }
.replay-duration {
    font-family: var(--serif);
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--amber);
}
.replay-stamp time { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.07em; color: var(--dim); }
.replay-main { display: grid; gap: 10px; align-content: start; }
.replay-trajectories { display: flex; flex-wrap: wrap; gap: 6px; }
.replay-trajectories span {
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.07em;
    color: var(--dim);
}
.replay-main h3 { font-size: 1.24rem; font-weight: 600; letter-spacing: -0.025em; }
.replay-main p { font-size: 0.91rem; color: var(--muted); }
.replay-topics { display: grid; gap: 12px; align-content: space-between; }
.replay-topics ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.replay-topics li {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--muted);
    padding-left: 14px;
    position: relative;
}
.replay-topics li::before {
    content: "";
    position: absolute;
    left: 0; top: 8px;
    width: 6px; height: 1px;
    background: var(--amber);
}
.replay-open {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--dim);
}
.replay-card:hover .replay-open { color: var(--amber); }

.fit-list {
    margin-top: 42px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}
.fit-list > div {
    padding: 24px 22px;
    display: grid;
    gap: 10px;
    align-content: start;
    border-left: 1px solid var(--line-2);
}
.fit-list span {
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.15em;
    color: var(--aqua);
}
.fit-list p { font-size: 0.9rem; color: var(--muted); }

/* conversion band shared by lab / amplified / membership */
.offer-band {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) auto auto;
    align-items: center;
    gap: clamp(22px, 3vw, 46px);
    padding: clamp(30px, 4vw, 46px);
    border-radius: var(--r-lg);
    border: 1px solid rgba(119, 226, 205, 0.24);
    background:
        radial-gradient(90% 140% at 0% 0%, rgba(119, 226, 205, 0.1), transparent 60%),
        var(--panel-2);
}
.conversion-surface {
    border-color: rgba(119, 226, 205, 0.42);
    box-shadow:
        inset 0 1px 0 rgba(238, 243, 240, 0.04),
        0 30px 86px -68px rgba(121, 213, 232, 0.72);
}
.offer-band.conversion-surface {
    background:
        linear-gradient(90deg, var(--aqua), var(--amber), var(--iris)) top / 100% 2px no-repeat,
        radial-gradient(90% 140% at 0% 0%, rgba(119, 226, 205, 0.15), transparent 60%),
        radial-gradient(65% 120% at 100% 100%, rgba(176, 162, 251, 0.08), transparent 66%),
        var(--panel-2);
}
.tier-card-featured.conversion-surface {
    background:
        linear-gradient(90deg, var(--aqua), var(--amber), var(--iris)) top / 100% 2px no-repeat,
        radial-gradient(120% 90% at 50% 0%, rgba(119, 226, 205, 0.14), transparent 62%),
        var(--panel-2);
}
.rail-card.conversion-surface {
    background:
        linear-gradient(90deg, var(--aqua), var(--amber), var(--iris)) top / 100% 2px no-repeat,
        radial-gradient(120% 90% at 100% 0%, rgba(119, 226, 205, 0.15), transparent 62%),
        var(--panel-2);
}
.offer-band h2 { max-width: 22ch; }
.offer-band p { margin-top: 16px; max-width: 56ch; font-size: 0.96rem; color: var(--muted); }
.offer-price { display: grid; gap: 4px; text-align: right; }
.offer-price strong {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2.6rem, 4vw, 3.6rem);
    line-height: 1;
}
.offer-price span { font-family: var(--mono); font-size: 0.7rem; color: var(--dim); }

/* --------------------------------------------------------- 23 consulting */
/* This page is built on a different skeleton from the rest of the site: a
   full-bleed statement hero, a process strip, then a two-column reading zone
   with a sticky offer rail. Long consideration purchase — the price and the
   CTA stay on screen the whole way down. */

.cons-hero { padding-top: clamp(52px, 6vw, 96px); }
.cons-hero h1 { max-width: 15ch; }
.cons-hero-foot {
    margin-top: clamp(26px, 3.4vw, 44px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: clamp(24px, 4vw, 60px);
}
.cons-hero-foot .hero-lede { margin-top: 0; max-width: 54ch; }
.cons-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* The four steps, read left to right as one continuous instrument. */
.cons-strip {
    margin-top: clamp(40px, 5vw, 70px);
    display: grid;
    grid-template-columns: 172px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
    padding-top: 22px;
    border-top: 1px solid var(--line-2);
}
.cons-strip-label { display: grid; gap: 5px; align-content: start; }
.cons-strip-label span {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--paper);
}
.cons-strip-label small { font-family: var(--mono); font-size: 0.66rem; color: var(--dim); }
.cons-strip ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
}
.cons-strip li {
    display: grid;
    gap: 9px;
    align-content: start;
    padding: 0 20px;
    border-left: 1px solid var(--line);
}
.cons-strip li:first-child { padding-left: 0; border-left: 0; }
.cons-strip li span { font-family: var(--mono); font-size: 0.66rem; color: var(--iris); }
.cons-strip li strong { font-size: 0.92rem; font-weight: 500; line-height: 1.45; color: var(--muted); }

/* ------------------------------------------------ reading zone + rail */
.cons-body {
    margin-top: clamp(54px, 6.5vw, 96px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) 322px;
    align-items: start;
    gap: clamp(38px, 5vw, 78px);
}
/* minmax(0,…)/min-width:0 stop the comparison table's min-width from blowing
   the reading column past the viewport on narrow screens. */
.cons-main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(64px, 7vw, 108px);
}
.cons-block { min-width: 0; }
.cons-rail { grid-column: 2; grid-row: 1; position: sticky; top: 94px; display: grid; gap: 20px; }

.rail-card {
    position: relative;
    padding: 26px 24px;
    display: grid;
    gap: 16px;
    border-radius: var(--r);
    border: 1px solid var(--line-2);
    background:
        radial-gradient(120% 90% at 100% 0%, rgba(119, 226, 205, 0.1), transparent 62%),
        var(--panel-2);
}
.rail-price { display: flex; align-items: baseline; gap: 9px; }
.rail-price strong {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 3rem;
    line-height: 1;
}
.rail-price span { font-family: var(--mono); font-size: 0.68rem; color: var(--dim); }
.rail-tiers { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.rail-tiers li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px 10px;
    padding: 11px 0;
    border-top: 1px solid var(--line);
}
.rail-tiers b { font-size: 0.9rem; font-weight: 600; }
.rail-tiers i { grid-column: 1; font-style: normal; font-size: 0.8rem; color: var(--dim); }
.rail-tiers em {
    grid-row: 1 / span 2;
    grid-column: 2;
    align-self: center;
    font-family: var(--mono);
    font-style: normal;
    font-size: 0.86rem;
    color: var(--aqua);
}
.rail-trust { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.rail-trust li {
    position: relative;
    padding-left: 15px;
    font-size: 0.76rem;
    line-height: 1.5;
    color: var(--dim);
}
.rail-trust li::before { content: "·"; position: absolute; left: 4px; color: var(--aqua); }

.rail-nav { display: grid; gap: 1px; border-top: 1px solid var(--line); }
.rail-nav a {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 10px;
    padding: 12px 6px;
    border-bottom: 1px solid var(--line);
    font-size: 0.86rem;
    color: var(--dim);
    text-decoration: none;
    transition: color 200ms var(--ease), background 200ms var(--ease);
}
.rail-nav a span { font-family: var(--mono); font-size: 0.66rem; }
.rail-nav a:hover { color: var(--paper); background: rgba(238, 243, 240, 0.03); }
.rail-nav a.is-active { color: var(--paper); }
.rail-nav a.is-active span { color: var(--aqua); }

/* ------------------------------------------------------------- lenses */
/* No card chrome — an accent rule per entry and hairlines carry the grid. */
.lens-grid {
    margin-top: 38px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line);
}
.lens-card {
    position: relative;
    padding: 28px 26px 28px 24px;
    display: grid;
    gap: 11px;
    align-content: start;
    border-bottom: 1px solid var(--line);
    transition: background 260ms var(--ease);
}
.lens-card::before {
    content: "";
    position: absolute;
    inset: 28px auto 28px 0;
    width: 2px;
    background: var(--accent, var(--aqua));
    opacity: 0.55;
    transition: opacity 260ms var(--ease);
}
.lens-card:hover { background: rgba(238, 243, 240, 0.022); }
.lens-card:hover::before { opacity: 1; }
.lens-systems { --accent: var(--aqua); }
.lens-research { --accent: var(--sky); }
.lens-markets { --accent: var(--amber); }
.lens-mind { --accent: var(--iris); }
.lens-index { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--accent, var(--aqua)); }
.lens-card h3 { font-size: 1.16rem; font-weight: 600; letter-spacing: -0.015em; }
.lens-card p { font-size: 0.9rem; color: var(--muted); }
.lens-card ul { list-style: none; margin: 3px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.lens-card li {
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.64rem;
    color: var(--dim);
}

/* One line replaces what used to be a four-card "outputs" section. */
.leave-with {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
}
.leave-with-label {
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--dim);
}
.leave-with ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.leave-with li { position: relative; padding-left: 16px; font-size: 0.92rem; }
.leave-with li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--aqua);
    opacity: 0.75;
}

/* --------------------------------------------------------------- proof */
.proof-quote { margin: 34px 0 0; padding: 0; }
.proof-quote blockquote {
    margin: 0;
    padding-left: clamp(18px, 2.4vw, 30px);
    border-left: 2px solid var(--aqua);
    font-family: var(--serif);
    font-size: clamp(1.35rem, 2.3vw, 1.95rem);
    line-height: 1.3;
    letter-spacing: -0.02em;
}
.proof-quote figcaption {
    margin-top: 20px;
    padding-left: clamp(20px, 2.4vw, 32px);
    display: grid;
    gap: 5px;
}
.proof-quote figcaption strong { font-size: 0.95rem; }
.proof-quote figcaption span { font-size: 0.85rem; color: var(--muted); }

/* The arc: a spine that brightens as it descends, because the work compounds. */
.arc {
    position: relative;
    margin: clamp(38px, 4.5vw, 58px) 0 0;
    padding: 0 0 0 34px;
    list-style: none;
    display: grid;
    gap: 22px;
}
.arc::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--line-2), var(--aqua));
}
.arc-stop { position: relative; display: grid; gap: 4px; }
.arc-stop::before {
    content: "";
    position: absolute;
    left: -34px;
    top: 6px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    border: 1px solid var(--line-3);
    background: var(--ink);
}
.arc-when {
    font-family: var(--mono);
    font-size: 0.63rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--dim);
}
.arc-stop strong { font-size: 0.98rem; font-weight: 500; color: var(--muted); }
.arc-origin strong { color: var(--paper); }
.arc-now::before { border-color: var(--aqua); background: var(--aqua); box-shadow: 0 0 0 5px rgba(119, 226, 205, 0.14); }
.arc-now .arc-when { color: var(--aqua); }
.arc-now strong { font-size: 1.12rem; font-weight: 600; color: var(--paper); }

.proof-foot {
    margin-top: clamp(30px, 3.6vw, 44px);
    padding-top: 22px;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px 32px;
}
.proof-foot p { max-width: 58ch; font-size: 0.9rem; color: var(--muted); }
.proof-links { display: flex; flex-wrap: wrap; gap: 10px 20px; }

/* ------------------------------------------------------ tier comparison */
.tier-compare { margin-top: 38px; min-width: 0; overflow-x: auto; }
/* Shown only where the table has to scroll sideways. */
.scroll-hint {
    display: none;
    margin-top: 32px;
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dim);
}
.tier-compare table { width: 100%; border-collapse: collapse; text-align: left; }
.tier-compare th,
.tier-compare td { padding: 17px 20px; vertical-align: top; border-bottom: 1px solid var(--line); }
.tier-compare thead td { border-bottom: 1px solid var(--line-2); }
.tier-compare thead th {
    position: relative;
    display: table-cell;
    border-bottom: 1px solid var(--line-2);
    vertical-align: bottom;
}
.th-name {
    display: block;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dim);
}
.th-price {
    display: block;
    margin-top: 7px;
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.9rem, 2.8vw, 2.5rem);
    line-height: 1;
}
.th-price i { font-family: var(--mono); font-style: normal; font-size: 0.66rem; color: var(--dim); margin-left: 6px; }
.th-mark {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--aqua);
    color: var(--ink);
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.tier-compare tbody th {
    width: 168px;
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
}
.tier-compare tbody td { font-size: 0.9rem; color: var(--muted); }
.tier-compare tbody td b { font-weight: 600; font-size: 0.98rem; color: var(--paper); }
/* The recommended column is tinted end to end rather than boxed. */
.tier-compare .is-featured { background: rgba(119, 226, 205, 0.045); }
.tier-compare .is-yes { color: var(--aqua); }
.tier-compare-cta td { padding-top: 22px; border-bottom: 0; }
.tier-compare-cta th { border-bottom: 0; }

/* The honest limits sit with the price rather than in a section of their own. */
.fine-print {
    margin-top: 30px;
    max-width: 78ch;
    font-size: 0.81rem;
    line-height: 1.65;
    color: var(--dim);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 1080px) {
    /* Rail unsticks and moves above the reading column: price stays early. */
    .cons-body { grid-template-columns: minmax(0, 1fr); }
    .cons-rail { grid-column: 1; grid-row: 1; position: static; }
    .cons-main { grid-column: 1; grid-row: 2; }
    .rail-nav { display: none; }
    .rail-card { max-width: 520px; }
    .cons-strip { grid-template-columns: minmax(0, 1fr); }
    .cons-strip ol { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 0; }
    .cons-strip li:nth-child(odd) { padding-left: 0; border-left: 0; }
}

@media (max-width: 860px) {
    .cons-hero-foot { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .cons-strip ol { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .cons-strip li { padding-left: 0; border-left: 0; }
    .lens-grid { grid-template-columns: minmax(0, 1fr); }
    .proof-foot { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .scroll-hint { display: block; }
    .tier-compare { margin-top: 14px; }
    .tier-compare table { min-width: 470px; }
    .tier-compare tbody th { width: 96px; }
    .tier-compare th,
    .tier-compare td { padding: 15px 14px; }
}
/* ------------------------------------------------- 24 experiments page */
.lab-index-hero {
    padding-top: clamp(48px, 5.5vw, 84px);
    padding-bottom: clamp(10px, 2vw, 26px);
}
.lab-index-hero h1 { max-width: 19ch; }
.lab-index-hero .hero-lede { max-width: 64ch; }
.experiment-groups { display: grid; gap: clamp(48px, 6vw, 82px); }
.experiment-group-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 28px;
}
.experiment-group-head h2 { font-size: clamp(1.5rem, 2.4vw, 2.1rem) !important; }
.experiment-group-head p { max-width: 52ch; font-size: 0.9rem; color: var(--muted); }

.scene-cloud {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.scene-cloud a {
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.71rem;
    color: var(--muted);
    text-decoration: none;
    transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}
.scene-cloud a:hover { color: var(--ink); background: var(--aqua); border-color: var(--aqua); }

/* --------------------------------------------------- 25 reveal + motion */
[data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 640ms var(--ease), transform 640ms var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    [data-reveal] { opacity: 1; transform: none; }
}

/* ------------------------------------------------------- 26 responsive */
@media (max-width: 1080px) {
    .hero,
    .amplified-hero,
    .lab-hero { grid-template-columns: minmax(0, 1fr); }
    .hero-copy h1 { max-width: 18ch; }
    .proof-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .proof-stat:nth-child(3) { border-right: 0; }
    .proof-stat:nth-child(n+4) { border-top: 1px solid var(--line); }
    .format-grid,
    .fit-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .trajectory-grid,
    .rhythm-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .field-layout { grid-template-columns: minmax(0, 1fr); }
    .offer-band { grid-template-columns: minmax(0, 1fr); }
    .offer-price { text-align: left; }
    .replay-card { grid-template-columns: 110px minmax(0, 1fr); }
    .replay-topics { grid-column: 1 / -1; padding-top: 16px; border-top: 1px solid var(--line); }
    .testimonial { grid-template-columns: minmax(0, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
    /* The mobile header earns its space in three states. At the top of the page it
       is a full bar. Once you start reading it dissolves into two small capsules —
       a logo dot and the menu button — with the bar chrome removed entirely. And
       while you scroll down it leaves altogether, returning the moment you scroll
       back up. Nothing here applies above 860px; the desktop header is unchanged. */
    .site-header {
        top: 8px;
        margin-top: 8px;
        min-height: 52px;
        grid-template-columns: auto 1fr auto;
        gap: 10px;
        padding: 0 8px 0 14px;
        transition:
            transform 300ms var(--ease),
            min-height 260ms var(--ease),
            padding 260ms var(--ease),
            background 260ms var(--ease),
            border-color 260ms var(--ease),
            box-shadow 260ms var(--ease);
    }
    .site-header.is-hidden { transform: translateY(calc(-100% - 24px)); }
    /* A soft scrim instead of a bar: content stays visible underneath the two
       floating controls, but never collides with them. */
    .site-header.is-scrolled::before {
        content: "";
        position: absolute;
        z-index: -1;
        top: -8px;
        left: -12px;
        right: -12px;
        height: 78px;
        pointer-events: none;
        background: linear-gradient(to bottom, rgba(5, 7, 10, 0.78), rgba(5, 7, 10, 0));
    }

    /* condensed: the bar itself becomes invisible and its two controls float */
    .site-header.is-scrolled {
        top: 8px;
        min-height: 44px;
        width: calc(100% - 24px);
        padding: 0;
        background: transparent;
        border-color: transparent;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
    .site-header.is-scrolled .brand,
    .site-header.is-scrolled .menu-toggle {
        border: 1px solid var(--line-2);
        background: rgba(5, 7, 10, 0.9);
        backdrop-filter: blur(18px) saturate(1.2);
        -webkit-backdrop-filter: blur(18px) saturate(1.2);
        box-shadow: 0 12px 30px -18px rgba(0, 0, 0, 0.95);
    }
    .site-header .brand {
        border: 1px solid transparent;
        border-radius: 999px;
        transition: width 260ms var(--ease), padding 260ms var(--ease), background 260ms var(--ease), border-color 260ms var(--ease);
    }
    .site-header .brand > span {
        max-width: 8em;
        overflow: hidden;
        white-space: nowrap;
        transition: max-width 280ms var(--ease), opacity 180ms var(--ease);
    }
    .site-header.is-scrolled .brand {
        width: 40px;
        height: 40px;
        padding: 0;
        gap: 0;
        justify-content: center;
    }
    .site-header.is-scrolled .brand > span { max-width: 0; opacity: 0; }
    .site-header.is-scrolled .brand-mark { width: 21px; height: 21px; }
    .site-header.is-scrolled .menu-toggle { width: 40px; height: 40px; border-radius: 999px; }

    /* reading progress moves onto the menu button as a ring once condensed */
    .site-header.is-scrolled .nav-progress { opacity: 0; }
    .menu-toggle { position: relative; }
    @supports ((-webkit-mask-composite: xor) or (mask-composite: exclude)) {
        .site-header.is-scrolled .menu-toggle::before {
            content: "";
            position: absolute;
            inset: -3px;
            border-radius: inherit;
            padding: 1.5px;
            background: conic-gradient(
                var(--aqua) calc(var(--page-progress, 0) * 360deg),
                rgba(214, 233, 228, 0.12) 0
            );
            -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            -webkit-mask-composite: xor;
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask-composite: exclude;
            pointer-events: none;
        }
    }

    .menu-toggle { display: inline-flex; grid-column: 3; justify-self: end; }
    .header-actions { display: none; }
    .site-nav {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 10px;
        border: 1px solid var(--line-2);
        border-radius: var(--r);
        background: rgba(5, 7, 10, 0.97);
        backdrop-filter: blur(22px);
        -webkit-backdrop-filter: blur(22px);
        box-shadow: var(--lift);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px) scale(0.985);
        transform-origin: top right;
        transition: opacity 200ms var(--ease), transform 220ms var(--ease), visibility 220ms;
    }
    .site-header.menu-open .site-nav { opacity: 1; visibility: visible; transform: none; }
    .nav-link { padding: 12px 14px; font-size: 0.95rem; border-radius: var(--r-sm); }
    .nav-link::after { display: none; }
    .nav-link.is-active { background: rgba(119, 226, 205, 0.09); }
    .site-nav .nav-cta {
        display: inline-flex;
        margin-top: 8px;
        justify-content: center;
    }
    .mobile-cta { display: inline-flex; }

    /* the map inherits the header's motion: up when it leaves, down when it returns */
    main { --map-top: 70px; }
    .site-header.is-scrolled + main { --map-top: 60px; }
    .site-header.is-hidden + main { --map-top: 12px; }
    .field-map {
        grid-template-columns: auto minmax(0, 1fr);
        gap: 8px;
        margin-top: -18px;
        margin-bottom: 26px;
        padding: 6px 8px 7px;
        border-radius: 14px;
    }
    /* the counter alone carries the meaning once space is tight */
    .field-map-state { min-width: 0; padding-right: 9px; }
    .field-map-state span { display: none; }
    .field-map-state strong { font-size: 0.62rem; }
    /* full-size touch targets, and a trailing spacer so the last chip can still
       scroll to the front of the rail */
    .field-map-scroll { gap: 5px; }
    .field-map-scroll a { min-height: 42px; padding: 9px 11px; font-size: 0.7rem; scroll-snap-align: start; }
    .field-map-scroll::after { content: ""; flex: 0 0 calc(100% - 70px); height: 1px; }

    .path-grid,
    .tier-grid,
    .ladder { grid-template-columns: minmax(0, 1fr); }
    .trajectory-grid,
    .rhythm-grid,
    .format-grid,
    .fit-list { grid-template-columns: minmax(0, 1fr); }
    .section-head-row { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .recommended-mark { left: 20px; }
    .lens-card { padding: 26px 0 26px 22px; }
    .faq-list details > p { padding-right: 28px; }
}

@media (max-width: 640px) {
    :root { --gutter: 16px; }
    .proof-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .proof-stat { border-right: 1px solid var(--line); border-top: 1px solid var(--line); padding: 20px 16px; }
    .proof-stat:nth-child(even) { border-right: 0; }
    .proof-stat:nth-child(-n+2) { border-top: 0; }
    .proof-stat:last-child { grid-column: 1 / -1; }
    .field-note { grid-template-columns: minmax(0, 1fr) auto; }
    .field-date { grid-column: 1 / -1; }
    .replay-card { grid-template-columns: minmax(0, 1fr); }
    .replay-stamp { display: flex; align-items: baseline; gap: 12px; }
    .footer-grid { grid-template-columns: minmax(0, 1fr); }
    .button { width: 100%; }
    .button-row { flex-direction: column; align-items: stretch; }
    .testimonial blockquote { font-size: 1.3rem; }
    .archive-note,
    .experiments-footer,
    .pricing-aside { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 380px) {
    /* smallest phones: the capsule keeps the label and the action, drops the aside */
    .mobile-cta-body { gap: 7px; padding-left: 12px; }
    .mobile-cta-body small { display: none; }
}