/* Landing of the decision session. Same system as the app: Inter, the app's blue for actions only,
   its gradient on titles, its stage and Signal colours, its card radius and shadow.
   Layout: one column of sections whose backgrounds alternate, mobile first; each section pairs a
   short text with a visual drawn from the app's own components. */

:root {
    --bg: #fff;
    --bg-tint: #f5f7fb;
    --surface: #fff;
    --surface-raised: #f9fafc;
    --text: #677788;
    --heading: #1e2022;
    --muted: #8c98a4;
    --border: #e7eaf3;
    --primary: #377dff;
    --primary-hover: #1366ff;
    --primary-rgb: 55, 125, 255;
    --on-primary: #fff;
    --grad: linear-gradient(90deg, #377dff, #7a3dbb 60%, #b84fc9);
    --shadow: 0 0.375rem 1.5rem 0 rgba(140, 152, 164, 0.125);
    --shadow-lg: 0 1.25rem 3rem -0.75rem rgba(55, 62, 98, 0.22);
    --skeleton: #e7eaf3;
    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-border: rgba(140, 152, 164, 0.18);
    --glass-highlight: rgba(255, 255, 255, 0.5);
    --glass-light: 0.22;

    /* The app's stage colours (app.css, .session-stage--*) */
    --stage-framing: 55, 125, 255;
    --stage-blind-pass: 122, 90, 248;
    --stage-confrontation: 234, 128, 30;
    --stage-arbitration: 237, 76, 120;
    --stage-verification: 0, 132, 199;

    /* The app's Signal verdicts (app.css, .session-signal--*) */
    --signal-reached: 0, 150, 110;
    --signal-not-reached: 220, 53, 69;
    --signal-not-observable: 200, 120, 0;

    --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --gutter: 1rem;
    --header-h: 3.75rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1e2022;
        --bg-tint: #232629;
        --surface: #25282a;
        --surface-raised: #2b2e31;
        --text: #c5c8cc;
        --heading: #fff;
        --muted: #91989e;
        --border: #2f3235;
        --grad: linear-gradient(90deg, #6fb1fc, #9b4ddb 55%, #c86dd7);
        --shadow: 0 0.375rem 1.5rem 0 rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 1.25rem 3rem -0.75rem rgba(0, 0, 0, 0.6);
        --skeleton: rgba(255, 255, 255, 0.09);
        --glass-bg: rgba(37, 40, 42, 0.5);
        --glass-border: rgba(255, 255, 255, 0.1);
        --glass-highlight: rgba(255, 255, 255, 0.06);
        --glass-light: 0.2;
        --signal-reached: 61, 219, 181;
        --signal-not-reached: 255, 123, 152;
        --signal-not-observable: 245, 185, 91;
        color-scheme: dark;
    }

    .logo-light { display: inline !important; }
    .logo-dark { display: none !important; }
}

/* ── Base ─────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-padding-top: calc(var(--header-h) + 1rem);
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 1.0625rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

h1, h2, h3 {
    color: var(--heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

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

.container {
    width: 100%;
    max-width: 72rem;
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.grad {
    background-image: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.icon {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Buttons: the one action colour ───────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 3rem;
    padding: 0.75rem 1.5rem;
    border: 0;
    border-radius: var(--radius);
    background: var(--primary);
    color: var(--on-primary);
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
    background: var(--primary-hover);
    color: var(--on-primary);
    box-shadow: 0 0.5rem 1.25rem -0.5rem rgba(var(--primary-rgb), 0.6);
}

.btn:active { transform: translateY(1px); }

.btn-sm {
    min-height: 2.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.9375rem;
}

/* The second action of a screen (app's btn-soft-primary): same colour, much less weight. */
.btn-soft {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.btn-soft:hover {
    background: rgba(var(--primary-rgb), 0.18);
    color: var(--primary);
    box-shadow: none;
}

.btn-lg {
    min-height: 3.5rem;
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.link-down {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 500;
}

.link-down .icon { width: 1.125rem; height: 1.125rem; }

/* ── Header ───────────────────────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: saturate(1.4) blur(10px);
    -webkit-backdrop-filter: saturate(1.4) blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.site-header.is-scrolled { border-bottom-color: var(--border); }

.site-header .container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: var(--header-h);
}

.brand img { height: 1.625rem; width: auto; }
.logo-light { display: none; }

.site-nav {
    display: none;
    flex: 1;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9375rem;
}

.site-nav a {
    position: relative;
    padding-block: 0.375rem;
    color: var(--text);
    font-weight: 500;
    transition: color 0.15s ease;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.125rem;
    height: 2px;
    border-radius: 2px;
    background: var(--grad);
    transform: scaleX(0);
    transition: transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a.is-active { color: var(--heading); }
.site-nav a.is-active::after { transform: scaleX(1); }

.site-header .btn { margin-left: auto; }

@media (min-width: 60rem) {
    .site-nav { display: flex; }
    .site-header .btn { margin-left: 0; }
}

@media (max-width: 22rem) {
    .brand img { height: 1.375rem; }
    .site-header .btn { padding-inline: 0.75rem; font-size: 0.875rem; }
}

/* ── Sections: alternating grounds, one idea each ─────────────────────── */

.section {
    padding-block: 4rem;
    background: var(--bg);
}

.section--tint { background: var(--bg-tint); }

.section-head {
    display: grid;
    gap: 1rem;
    max-width: 40rem;
    margin-bottom: 2.5rem;
}

.section-head--center {
    margin-inline: auto;
    text-align: center;
}

.eyebrow {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary);
}

.eyebrow--pain {
    font-size: 1.0625rem;
    font-weight: 500;
    font-style: italic;
    letter-spacing: 0;
    text-transform: none;
    color: var(--muted);
}

.h2 {
    font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.5rem);
    line-height: 1.2;
}

.lead { max-width: 38rem; }

@media (min-width: 48rem) {
    .section { padding-block: 6rem; }
}

/* ── 1. Hero ──────────────────────────────────────────────────────────── */

.hero {
    padding-block: 2rem 4rem;
    overflow: clip;
}

.hero .container {
    display: grid;
    gap: 2.5rem;
    align-items: center;
}

.hero-text {
    display: grid;
    gap: 1.25rem;
    min-width: 0;
}

/* The question is the kicker, the promise the headline: the eye lands on the promise. */
.hero h1 {
    font-size: clamp(2rem, 1.3rem + 3.4vw, 3.5rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
    text-wrap: balance;
}

.hero-kicker {
    display: block;
    margin-bottom: 0.5rem;
    font-size: clamp(1.25rem, 1rem + 1.2vw, 1.75rem);
    line-height: 1.25;
    letter-spacing: -0.015em;
}

.hero h1 .grad { display: inline-block; }

.hero-sub {
    font-size: 1.125rem;
    max-width: 34rem;
}

.hero-sub strong { color: var(--heading); font-weight: 600; }

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.5rem;
    margin-top: 0.25rem;
}

.reassure {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 0.5rem;
    font-size: 0.875rem;
    color: var(--muted);
}

.reassure li:not(:last-child)::after {
    content: "·";
    margin-left: 0.5rem;
}

@media (min-width: 60rem) {
    .hero { padding-block: 5rem 6.5rem; }
    .hero .container { grid-template-columns: 1.35fr 1fr; gap: 4rem; }
}

/* ── App mockups: cards drawn with the app's own pieces ───────────────── */

.mock-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
}

.mock-label {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
}

.hero .container { position: relative; z-index: 0; }

/* The hero card is frosted glass, as the header: a wash of the app's colours behind it, too wide
   and too soft to read as shapes, drifting slowly. */
.hero-visual {
    position: relative;
    isolation: isolate;
    width: 100%;
    max-width: 26rem;
    margin-inline: auto;
}

.hero-visual::before,
.hero-visual::after {
    content: "";
    position: absolute;
    z-index: -1;
    width: 62%;
    aspect-ratio: 1;
    border-radius: 50%;
    filter: blur(36px);
    opacity: var(--glass-light);
    animation: glass-orbit 16s ease-in-out infinite;
}

/* Two lights in the app's colours, one at each corner, drifting behind the glass. */
.hero-visual::before {
    top: -12%;
    left: -10%;
    background: #377dff;
}

.hero-visual::after {
    right: -10%;
    bottom: -14%;
    background: #b84fc9;
    animation-name: glass-orbit-back;
}

/* The two lights circle the card in opposite directions, crossing behind the glass. */
@keyframes glass-orbit {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(55%, 10%) scale(1.1); }
    50% { transform: translate(45%, 55%) scale(0.95); }
    75% { transform: translate(-5%, 40%) scale(1.05); }
}

@keyframes glass-orbit-back {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(-55%, -10%) scale(1.1); }
    50% { transform: translate(-45%, -55%) scale(0.95); }
    75% { transform: translate(5%, -40%) scale(1.05); }
}

.decision-card {
    position: relative;
    background: var(--glass-bg);
    border-color: var(--glass-border);
    box-shadow: var(--shadow-lg), inset 0 1px 0 var(--glass-highlight);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
}

.decision-card-question {
    min-height: 2.6em;
    font-size: 1.375rem;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.caret {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    margin-left: 2px;
    vertical-align: -0.15em;
    background: var(--primary);
    animation: caret-blink 1s steps(1) infinite;
}

@keyframes caret-blink { 50% { opacity: 0; } }

.mock-section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}

/* The session's way (app.css, .session-journey) */
.journey { display: grid; }

.journey-step {
    position: relative;
    display: flex;
    gap: 0.75rem;
    padding-bottom: 1rem;
    font-size: 0.9375rem;
}

.journey-step:last-child { padding-bottom: 0; }

.journey-step:not(:last-child)::before {
    content: "";
    position: absolute;
    left: 0.5rem;
    top: 1.35rem;
    bottom: 0.1rem;
    border-left: 2px solid var(--border);
}

.journey-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    margin-top: 0.25rem;
    border-radius: 50%;
    border: 2px solid rgb(var(--stage));
    background: var(--surface);
    color: #fff;
}

.journey-dot svg { width: 0.625rem; height: 0.625rem; stroke-width: 3.5; }
.journey-step--done .journey-dot { background: rgb(var(--stage)); }
.journey-step--done .journey-label { color: var(--text); }
.journey-step--current .journey-label { color: var(--heading); font-weight: 600; }

.stage-blind-pass { --stage: var(--stage-blind-pass); }
.stage-arbitration { --stage: var(--stage-arbitration); }
.stage-verification { --stage: var(--stage-verification); }
.stage-framing { --stage: var(--stage-framing); }
.stage-confrontation { --stage: var(--stage-confrontation); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.3;
    white-space: nowrap;
    background: rgba(var(--badge), 0.12);
    color: rgb(var(--badge));
}

.badge--stage { --badge: var(--stage); }
.badge--reached { --badge: var(--signal-reached); }
.badge--neutral { --badge: var(--primary-rgb); }

.skeleton {
    display: block;
    height: 0.5rem;
    border-radius: 0.25rem;
    background: var(--skeleton);
}

/* ── 2. Why it comes back: same six people, two settings ──────────────── */

.compare {
    display: grid;
    gap: 1.5rem;
}

.compare-col {
    display: grid;
    gap: 1rem;
    align-content: start;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
}

.compare-title {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.compare-col--aycoo .compare-title { color: var(--primary); }

.seats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.seat {
    display: grid;
    gap: 0.5rem;
    min-width: 0;
    padding: 0.75rem;
    min-height: 5.75rem;
    border-radius: var(--radius);
    border: 1px dashed var(--border);
    align-content: start;
}

.seat-who {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--muted);
}

.seat-avatar {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: var(--skeleton);
    flex-shrink: 0;
}

.seat-quote {
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.35;
    color: var(--heading);
}

/* In a meeting: one voice fills the room, the others stay blank. */
.compare-col--meeting .seat--speaks {
    border: 0;
    background: rgba(var(--primary-rgb), 0.08);
    transform: scale(1.04);
}

.compare-col--meeting .seat--speaks .seat-avatar { background: rgba(var(--primary-rgb), 0.45); }
.compare-col--meeting .seat--speaks .skeleton { background: rgba(var(--primary-rgb), 0.28); height: 0.55rem; }
.compare-col--meeting .seat:not(.seat--speaks) {
    border-color: color-mix(in srgb, var(--muted) 45%, transparent);
    opacity: 0.6;
}

/* With Aycoo: six equal cards, each with its line. */
.compare-col--aycoo .seat {
    border: 1px solid var(--border);
    background: var(--surface-raised);
}

.compare-col--aycoo .seat-avatar { background: rgba(var(--primary-rgb), 0.35); }

.compare-punch {
    margin-top: 2rem;
    max-width: 40rem;
    font-size: 1.1875rem;
    font-weight: 600;
    color: var(--heading);
}

.why-text {
    display: grid;
    gap: 1rem;
    max-width: 40rem;
    margin-bottom: 2.5rem;
}

@media (min-width: 48rem) {
    .compare { grid-template-columns: 1fr 1fr; }
    .seats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ── 3. How it works: four steps, four phones ─────────────────────────── */

.steps {
    display: grid;
    gap: 0;
    position: relative;
}

.step {
    position: relative;
    display: grid;
    grid-template-columns: 2.5rem minmax(0, 1fr);
    column-gap: 1rem;
    padding-bottom: 1.75rem;
}

.step:last-child { padding-bottom: 0; }

/* A research card's link lands here: the step lights up for a moment. */
.step.is-target .step-num { animation: step-ping 1.4s ease-out 0.2s 2; }

@keyframes step-ping {
    0% { box-shadow: 0 0 0 0 rgba(var(--stage), 0.45); }
    100% { box-shadow: 0 0 0 0.875rem rgba(var(--stage), 0); }
}

/* Mobile: the steps hang on one line, as the app's journey. */
.step:not(:last-child)::before {
    content: "";
    position: absolute;
    left: 1.25rem;
    top: 2.5rem;
    bottom: 0;
    border-left: 2px solid var(--border);
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: rgba(var(--stage), 0.12);
    color: rgb(var(--stage));
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.step-body { display: grid; gap: 0.25rem; padding-top: 0.375rem; }
.step-title { font-size: 1.1875rem; line-height: 1.3; }
.step .phone { display: none; }

.phone-solo { margin: 0 auto 2.5rem; }

.partner-note {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    max-width: 34rem;
    margin: 3rem auto 0;
    text-align: center;
    font-size: 0.9375rem;
    color: var(--muted);
}

/* The sparring-partners side by side: each participant gets one of them. */
.avatar-stack { display: flex; }

.avatar-stack img {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 0 2px var(--bg);
}

.avatar-stack img + img { margin-left: -0.5rem; }

@media (min-width: 60rem) {
    .phone.phone-solo { display: none; }
    .steps {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        grid-template-rows: auto auto auto;
        column-gap: 1.5rem;
    }

    .step {
        grid-row: span 3;
        grid-template-columns: 1fr;
        grid-template-rows: subgrid;
        row-gap: 1rem;
        align-content: start;
        padding-bottom: 0;
    }
    .step:not(:last-child)::before { display: none; }
    .step .phone { display: flex; }
}

.phone {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 15rem;
    height: 19rem;
    padding: 0.625rem;
    border-radius: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.phone-screen {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    flex: 1;
    min-height: 0;
    padding: 0.875rem 0.75rem;
    border-radius: 1.25rem;
    background: var(--surface-raised);
    font-size: 0.8125rem;
    line-height: 1.4;
    overflow: hidden;
}

.phone-screen > .badge { align-self: flex-start; }

.phone-notch {
    width: 3.5rem;
    height: 0.3rem;
    margin: 0 auto 0.25rem;
    border-radius: 1rem;
    background: var(--border);
}

.bubble {
    padding: 0.5rem 0.625rem;
    border-radius: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    display: grid;
    gap: 0.375rem;
}

.bubble--me {
    align-self: flex-end;
    max-width: 85%;
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 500;
}

.bubble-who {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--muted);
}

.avatar {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.composer {
    margin-top: auto;
    display: grid;
    gap: 0.5rem;
    padding: 0.625rem;
    border-radius: 0.75rem;
    background: var(--surface);
    border: 1px solid rgba(var(--primary-rgb), 0.45);
    color: var(--heading);
}

.composer .mini-btn { justify-self: end; }

.mini-btn {
    display: inline-block;
    padding: 0.3rem 0.625rem;
    border-radius: 0.375rem;
    background: var(--primary);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 600;
}

.field-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
}

.field-value { color: var(--heading); font-weight: 500; }

/* ── 4. Verification: the same Signal, the day it is set and the day of its verdict ── */

.verif {
    display: grid;
    gap: 3rem;
    align-items: center;
}

.verif-text {
    display: grid;
    gap: 1rem;
    max-width: 36rem;
    min-width: 0;
}

.verif-moments {
    display: grid;
    gap: 1.25rem;
    margin-top: 1rem;
}

.verif-moment {
    display: grid;
    gap: 0.25rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border);
}

.verif-when {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--heading);
}

.verif-visual {
    display: grid;
    width: 100%;
    max-width: 30rem;
    margin-inline: auto;
    min-width: 0;
}

/* The Signal (app.css, .session-signal): tinted by its state, facts on raised tiles. */
.signal {
    --signal: var(--primary-rgb);
    display: grid;
    gap: 0.75rem;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, rgb(var(--signal)) 6%, var(--surface));
    border: 1px solid rgba(var(--signal), 0.3);
    box-shadow: var(--shadow);
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.signal--reached { --signal: var(--signal-reached); }
.signal--notReached { --signal: var(--signal-not-reached); }
.signal--notObservable { --signal: var(--signal-not-observable); }

.signal-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.signal-label {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgb(var(--signal));
    transition: color 0.5s ease;
}

.signal-label .icon { width: 1rem; height: 1rem; stroke-width: 2; }

.signal-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--muted);
}

.badge--verdict {
    --badge: var(--signal);
    transition: background-color 0.5s ease, color 0.5s ease;
}

.signal-statement {
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--heading);
}

.signal-facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
}

.signal-fact {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    border-radius: var(--radius);
    background: var(--surface);
}

.signal-fact .icon {
    grid-row: span 2;
    width: 1rem;
    height: 1rem;
    margin-top: 0.125rem;
    color: rgb(var(--signal));
}

.signal-fact span { font-size: 0.75rem; color: var(--muted); }
.signal-fact strong { font-size: 0.875rem; font-weight: 600; color: var(--heading); }

/* The verdict card recalls the statement read just above without repeating it. */
.signal-recall {
    display: grid;
    gap: 0.5rem;
    padding-block: 0.25rem;
}

.signal-recall .skeleton { height: 0.625rem; background: rgba(var(--signal), 0.18); transition: background-color 0.5s ease; }

/* Between the two cards: the time that passes. */
.verif-gap {
    position: relative;
    display: flex;
    justify-content: center;
    height: 3.5rem;
}

.verif-gap::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    border-left: 2px dashed var(--border);
}

.verif-gap span {
    position: relative;
    align-self: center;
    padding: 0.125rem 0.625rem;
    border-radius: 999px;
    background: var(--bg-tint);
    border: 1px solid var(--border);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--heading);
}

/* Aycira hands the team its one question. */
.aycira {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(var(--signal), 0.2);
}

.aycira .avatar { width: 2rem; height: 2rem; }

.aycira-bubble {
    display: grid;
    gap: 0.125rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.75rem;
    background: var(--surface);
    color: var(--heading);
    font-weight: 500;
}

@media (min-width: 60rem) {
    .verif { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; }
    .verif-visual { margin-inline: 0 auto; }
}

/* ── Cards of the same shape: guarantees, research ────────────────────── */

.cards {
    display: grid;
    gap: 1rem;
}

.card {
    display: grid;
    gap: 0.5rem;
    align-content: start;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius);
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
}

.card-title { font-size: 1.125rem; line-height: 1.35; }

.card-source {
    font-size: 0.875rem;
    font-style: italic;
    color: var(--muted);
}

.step-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-self: start;
    margin-top: 0.75rem;
    padding: 0.3rem 0.75rem 0.3rem 0.3rem;
    border-radius: 999px;
    background: rgba(var(--stage), 0.1);
    color: rgb(var(--stage));
    font-size: 0.875rem;
    font-weight: 600;
    transition: background-color 0.15s ease;
}

.step-link:hover { background: rgba(var(--stage), 0.18); color: rgb(var(--stage)); }
.step-link .icon { width: 1rem; height: 1rem; stroke-width: 2.25; transition: transform 0.15s ease; }
.step-link:hover .icon { transform: translateX(2px); }

.step-link-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: rgba(var(--stage), 0.16);
    font-size: 0.75rem;
    font-weight: 700;
}

.step-link-num--dot::before {
    content: "";
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: rgb(var(--stage));
}

.card { grid-template-rows: auto auto 1fr; }
.card:has(.step-link) .step-link { align-self: end; }

@media (min-width: 48rem) {
    .cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
}

.footnote-line {
    max-width: 40rem;
    margin-top: 2rem;
    font-size: 0.9375rem;
    color: var(--muted);
}

/* ── 7. Which decisions ───────────────────────────────────────────────── */

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    max-width: 48rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--heading);
    font-size: 0.9375rem;
    font-weight: 500;
}

.not-for {
    max-width: 40rem;
    margin-top: 2rem;
    font-size: 0.9375rem;
    color: var(--muted);
}

.not-for strong { color: var(--text); }

/* ── 8. Price ─────────────────────────────────────────────────────────── */

.price-card {
    display: grid;
    gap: 1.5rem;
    justify-items: center;
    max-width: 28rem;
    margin-inline: auto;
    padding: 2.5rem 1.5rem;
    text-align: center;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.price {
    display: grid;
    gap: 0.75rem;
    justify-items: center;
}

.price-amount {
    font-size: clamp(3rem, 2.4rem + 3vw, 4rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.04em;
    color: var(--heading);
    font-variant-numeric: tabular-nums;
}

.price-unit {
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--muted);
}

.perks {
    display: grid;
    gap: 0.625rem;
    justify-items: start;
    text-align: left;
}

.perks li {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--heading);
    font-weight: 500;
}

.perks .icon { width: 1.25rem; height: 1.25rem; color: rgb(var(--signal-reached)); stroke-width: 2.25; }

.price-compare {
    font-size: 0.9375rem;
    color: var(--muted);
    max-width: 22rem;
}

/* The price's call to action, and under it, quiet, what the price buys: the example document,
   one tap away. A link rather than a second button, so that nothing competes with the first. */
.price-actions {
    display: grid;
    gap: 0.875rem;
    justify-items: center;
    width: 100%;
}

.price-card .btn { width: 100%; }

.link-doc {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0;
    border: 0;
    background: none;
    color: var(--primary);
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
}

.link-doc:hover { color: var(--primary-hover); text-decoration: underline; text-underline-offset: 3px; }
.link-doc .icon { width: 1.125rem; height: 1.125rem; }

/* ── 9. Questions ─────────────────────────────────────────────────────── */

.faq {
    display: grid;
    gap: 0.75rem;
    max-width: 44rem;
    margin-inline: auto;
}

.faq details {
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
}

.faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    color: var(--heading);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary .icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--muted);
    transition: transform 0.2s ease;
}

.faq details[open] summary .icon { transform: rotate(180deg); }

.faq details p {
    padding: 0 1.25rem 1.25rem;
}

/* ── 10. Start ────────────────────────────────────────────────────────── */

.start {
    display: grid;
    gap: 1.5rem;
    justify-items: center;
    text-align: center;
}

.start h2 {
    font-size: clamp(2rem, 1.3rem + 3.4vw, 3.25rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.founder {
    display: grid;
    gap: 1.25rem;
    max-width: 40rem;
    margin: 3.5rem auto 0;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
}

.founder-note {
    display: grid;
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.founder-photo {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 0 3px var(--bg-tint), 0 0 0 5px rgba(var(--primary-rgb), 0.35);
}

.founder blockquote {
    display: grid;
    gap: 0.75rem;
}

.founder blockquote p {
    font-style: italic;
    color: var(--heading);
    font-size: 1.0625rem;
}

.founder cite {
    font-style: normal;
    font-weight: 600;
    color: var(--text);
}

.founder .btn-write {
    justify-self: start;
    margin-left: 6.25rem;
}

@media (max-width: 30rem) {
    .founder-note { grid-template-columns: 1fr; }
    .founder .btn-write { margin-left: 0; }
}

/* The contact form: the pilot teams' door. */
.modal {
    width: min(34rem, calc(100% - 2rem));
    max-height: calc(100% - 2rem);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-lg);
    overflow: auto;
}

.modal::backdrop {
    background: rgba(19, 33, 68, 0.45);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}

.modal[open] { animation: modal-in 0.22s ease-out; }
.modal[open]::backdrop { animation: fade-in 0.22s ease-out; }

@keyframes modal-in {
    from { opacity: 0; transform: translateY(0.75rem) scale(0.98); }
}

@keyframes fade-in { from { opacity: 0; } }

/* Phones: the dialog rises from the bottom, within thumb's reach. */
@media (max-width: 36rem) {
    .modal {
        width: 100%;
        max-width: 100%;
        margin: auto 0 0;
        border-radius: 1.25rem 1.25rem 0 0;
        border-bottom: 0;
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }

    @keyframes modal-in { from { transform: translateY(100%); } }
}

.modal-head {
    display: grid;
    grid-template-columns: 3rem minmax(0, 1fr) auto;
    gap: 0.875rem;
    align-items: center;
    margin-bottom: 0.25rem;
}

.modal-photo {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
}

.modal-title { font-size: 1.25rem; line-height: 1.3; }
.modal-sub { font-size: 0.9375rem; color: var(--muted); }

.modal-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: start;
    width: 2.5rem;
    height: 2.5rem;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

.modal-close:hover { background: var(--surface-raised); color: var(--heading); }
.modal-close .icon { width: 1.25rem; height: 1.25rem; }

/* The example document (app.css, .session-document): the decision first, then the Signal, then
   what no meeting would have given. Its head stays in reach whatever the scroll. */
.modal--doc { width: min(46rem, calc(100% - 2rem)); }

@media (min-width: 64rem) {
    .modal--doc { width: min(62rem, calc(100% - 4rem)); }
}

.doc-head {
    position: sticky;
    top: 0;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.875rem;
    align-items: start;
    padding: 1.25rem 1.5rem 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.doc {
    display: grid;
    gap: 1.75rem;
    padding: 1.5rem;
    font-size: 0.9375rem;
}

.doc-title { font-size: 1.5rem; line-height: 1.3; }

.doc-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.doc-decision {
    padding-left: 1rem;
    border-left: 3px solid var(--heading);
}

.doc-decision-text {
    margin-bottom: 1rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--heading);
}

.doc-meta { margin-bottom: 0.75rem; font-size: 0.875rem; color: var(--muted); }
.doc-muted { color: var(--muted); }
.doc-hint { margin-top: -0.5rem; font-size: 0.8125rem; color: var(--muted); }

.doc-tags { display: flex; flex-wrap: wrap; gap: 0.25rem; }

/* A domain as a tag (app.css, .domain-tag): contributions belong to domains, never to people. */
.domain-tag {
    display: inline-flex;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: rgba(140, 152, 164, 0.14);
    color: var(--heading);
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.3;
    white-space: nowrap;
}

.doc-section {
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}

/* One tag column for every row, wide enough for the longest domain, so the texts line up. */
.doc-row {
    display: grid;
    grid-template-columns: 8.75rem minmax(0, 1fr);
    gap: 0.75rem;
    align-items: baseline;
    margin-top: 0.6rem;
}

.doc-row > .domain-tag { justify-self: start; }
.doc-row ul { padding-left: 1rem; list-style: disc; }

/* The protocol closes the document as a small print line, not as content. */
.doc-footer {
    padding-top: 0.6rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--muted);
}

.doc-footer .doc-label { display: inline; margin-right: 0.35rem; font-size: 0.65rem; }
.doc-footer > span:not(.doc-label):not(:last-child)::after { content: " · "; }

/* The landing's notes on the document, in the blue of the page rather than the document's grey:
   under the section they speak of on phones, in the margin beside it on wide screens. */
.doc-note {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: -1rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.45;
}

.doc-note .icon { width: 1rem; height: 1rem; margin-top: 0.1rem; stroke-width: 2.25; transform: rotate(-90deg); }

/* The note a meeting would have cost the most without: it keeps its tint everywhere, margin included. */
.doc-note--key { color: var(--heading); }

@media (min-width: 64rem) {
    .doc { grid-template-columns: minmax(0, 1fr) 13rem; column-gap: 2rem; }
    .doc > * { grid-column: 1; }

    /* Placed after its section, the note takes the same row, in the margin. */
    .doc > .doc-note {
        grid-column: 2;
        align-self: start;
        margin-top: 0;
        padding: 0 0 0 0.75rem;
        border-left: 2px solid rgba(var(--primary-rgb), 0.4);
        border-radius: 0;
        background: none;
    }

    .doc > .doc-section + .doc-note { margin-top: 1.25rem; }

    .doc > .doc-note.doc-note--key {
        padding: 0.5rem 0.75rem;
        border-left: 0;
        border-radius: var(--radius);
        background: rgba(var(--primary-rgb), 0.1);
    }
    .doc-note .icon { transform: rotate(180deg); }
}

@media (max-width: 30rem) {
    /* The sticky head leaves the phone's height to the document. */
    .doc-head { padding: 1rem 1.25rem 0.75rem; }
    .doc-head .modal-title { font-size: 1.0625rem; }
    .doc-head .modal-sub { font-size: 0.8125rem; }
    .doc-row { grid-template-columns: 1fr; gap: 0.375rem; }
    .doc .signal-facts { grid-template-columns: 1fr; }
}

.contact {
    display: grid;
    gap: 1rem;
    padding: 1.5rem;
}

.contact-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
}

.contact-foot .contact-status { flex: 1 1 12rem; min-width: 0; }

.contact-row {
    display: grid;
    gap: 1rem;
}

@media (min-width: 36rem) {
    .contact-row { grid-template-columns: 1fr 1fr; }
}

.field { display: grid; gap: 0.375rem; min-width: 0; }

.field label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--heading);
}

.field input,
.field textarea {
    width: 100%;
    padding: 0.75rem 0.875rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--heading);
    font: inherit;
    font-size: 1rem;
}

.field textarea { min-height: 7.5rem; resize: vertical; }

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: rgba(var(--primary-rgb), 0.6);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.field-hint { font-size: 0.8125rem; color: var(--muted); font-weight: 400; }

.honeypot {
    position: absolute !important;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.contact-status { font-size: 0.9375rem; }
.contact-status--ok { color: rgb(var(--signal-reached)); font-weight: 600; }
.contact-status--error { color: rgb(var(--signal-not-reached)); }
.contact .btn { margin-left: auto; }

/* ── Footer ───────────────────────────────────────────────────────────── */

.site-footer {
    padding-block: 2rem calc(2rem + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
}

.site-footer .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.footer-links a,
.footer-link { color: var(--text); }

.footer-link {
    padding: 0;
    border: 0;
    background: none;
    font: inherit;
    cursor: pointer;
}

.footer-links a:hover,
.footer-link:hover { color: var(--heading); }
.footer-copy { color: var(--muted); }

/* ── Mobile action bar, once the hero has scrolled away ──────────────── */

.action-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    padding: 0.75rem var(--gutter) calc(0.75rem + env(safe-area-inset-bottom, 0px));
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    transform: translateY(110%);
    transition: transform 0.25s ease;
}

.action-bar .btn { width: 100%; }
.action-bar.is-visible { transform: none; }

@media (min-width: 48rem) {
    .action-bar { display: none; }
}

/* ── Motion ───────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
    .caret { display: none; }
}