/* Landing page — standalone, not loaded by Dash. Tokens mirror the app's
   :root in assets/custom.css; keep them in step if the app's change. */

@font-face {
    font-family: "D-DIN";
    src: url("/assets/fonts/D-DIN-Bold.woff2") format("woff2");
    font-weight: 700;
    font-display: swap;
}
@font-face {
    font-family: "Geist";
    src: url("/assets/fonts/Geist[wght].ttf") format("truetype-variations");
    font-weight: 100 900;
    font-display: swap;
}

:root {
    --canvas: #F7F8FA;
    --card: #FFFFFF;
    --card-sunken: #F1F3F7;
    --hairline: #E6E9EF;
    --hairline-strong: #CFD5E0;
    --ink: #0C2340;
    --body: #475569;
    --mute: #687388;
    --action: #4F46E5;
    --action-hover: #4338CA;
    --action-soft: #EEF2FF;
    --success: #1E8E3E;
    --success-soft: #E6F4EA;
    --success-deep: #137333;
    --warning: #F9AB00;
    --warning-soft: #FEF7E0;
    --danger: #D93025;
    --danger-soft: #FCE8E6;
    --danger-deep: #C5221F;
    --raised: 0 1px 3px rgba(12, 35, 64, 0.06);
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--canvas);
    color: var(--body);
    font-family: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    color: var(--ink);
    font-family: "D-DIN", "Geist", sans-serif;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin: 0 0 16px;
}
h1 { font-size: 56px; }
h2 { font-size: 38px; }
h3 { font-size: 22px; }
p { margin: 0 0 14px; }

a { color: var(--action); }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

section { padding: 88px 0; }
section[id] { scroll-margin-top: 72px; }

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 18px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    border: 1.5px solid var(--action);
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-fill { background: var(--action); color: #fff; }
.btn-fill:hover { background: var(--action-hover); border-color: var(--action-hover); }
.btn-outline { background: transparent; color: var(--action); }
.btn-outline:hover { background: var(--action-soft); }
.btn-lg { height: 48px; padding: 0 24px; font-size: 16px; }
.btn[aria-disabled="true"] {
    background: var(--card-sunken);
    border-color: var(--hairline-strong);
    color: var(--mute);
    pointer-events: none;
}

.text-link {
    color: var(--action);
    font-weight: 600;
    text-decoration: none;
}
.text-link:hover { text-decoration: underline; }

.fine { font-size: 14px; color: var(--mute); }

/* ----- Nav ----- */
.nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(247, 248, 250, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--hairline);
}
.nav-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: 64px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-family: "D-DIN", "Geist", sans-serif;
    font-weight: 700;
    font-size: 20px;
    text-decoration: none;
}
.nav-links { display: flex; gap: 24px; }
.nav-links a {
    color: var(--body);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
}
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; gap: 10px; margin-left: auto; }
.nav-actions .btn { min-width: 128px; }

/* ----- App stills (2x PNGs from scripts/capture_landing.py) ----- */
.shot {
    margin: 0;
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    box-shadow: 0 12px 32px rgba(12, 35, 64, 0.10), var(--raised);
}
.shot img, .shot video { display: block; width: 100%; height: auto; }

/* ----- Hero ----- */
.hero { padding-top: 72px; }
.hero-inner {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 56px;
    align-items: center;
}
.lede { font-size: 20px; color: var(--body); margin-bottom: 28px; }
.cta-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 12px;
}

/* ----- Problem ----- */
.problem { background: var(--card); border-block: 1px solid var(--hairline); }
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.scoreboard {
    margin: 0;
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    box-shadow: 0 12px 32px rgba(12, 35, 64, 0.10), var(--raised);
    font-variant-numeric: tabular-nums;
}
.sb-head, .sb-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
}
.sb-head {
    padding-block: 12px;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    color: var(--mute);
    font-size: 13px;
    font-weight: 500;
}
.sb-row { color: var(--ink); font-size: 18px; }
.sb-row + .sb-row { border-top: 1px solid var(--hairline); }
.sb-val, .sb-unknown {
    font-family: "D-DIN", "Geist", sans-serif;
    font-size: 24px;
    font-weight: 700;
}
.sb-val { color: var(--success); }
.sb-yours { background: var(--card-sunken); font-weight: 600; }
.sb-unknown {
    min-width: 64px;
    padding: 2px 0;
    border: 1.5px dashed var(--hairline-strong);
    border-radius: 8px;
    color: var(--mute);
    text-align: center;
}

.section-head { max-width: 760px; }
.section-intro { font-size: 19px; margin-bottom: 40px; }
.center { text-align: center; }

/* ----- How it works ----- */
.steps {
    list-style: none;
    margin: 40px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.step .shot { margin-bottom: 20px; }
.step-num {
    margin: 0 0 6px;
    color: var(--action);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ----- Verdict ----- */
.verdict { background: var(--card); border-block: 1px solid var(--hairline); }
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.card {
    display: flex;
    flex-direction: column;
    padding: 28px;
    background: var(--canvas);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
}
.card .shot { margin-top: auto; }
.card p { margin-bottom: 24px; }
.chip {
    align-self: flex-start;
    margin-bottom: 16px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}
.chip-hold { background: var(--success-soft); color: var(--success-deep); }
.chip-best { background: var(--warning-soft); color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--warning); }
.chip-sell { background: var(--danger-soft); color: var(--danger-deep); }
.strip {
    margin: 32px 0 16px;
    padding: 18px 24px;
    background: var(--action-soft);
    border-radius: var(--radius);
    color: var(--ink);
    font-weight: 600;
    text-align: center;
}

/* ----- Pricing ----- */
.tiers .card { background: var(--card); box-shadow: var(--raised); }
.tier .btn { margin-top: auto; margin-bottom: 12px; }
/* Two lines reserved in every tier so the buttons share one baseline even
   when one card's fine print wraps. */
.tier .fine { margin: 0; min-height: 3.2em; }
.tier-featured { border: 1.5px solid var(--action); }
.tier-name {
    margin-bottom: 8px;
    color: var(--ink);
    font-weight: 600;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}
.tag {
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--card-sunken);
    color: var(--mute);
    font-size: 12px;
    font-weight: 600;
}
.tag-action { background: var(--action-soft); color: var(--action); }
.price {
    margin-bottom: 16px;
    color: var(--ink);
    font-family: "D-DIN", "Geist", sans-serif;
    font-size: 44px;
    font-weight: 700;
    line-height: 1;
}
.price s { color: var(--mute); font-size: 28px; font-weight: 400; margin-right: 6px; }
.per { font-size: 18px; color: var(--mute); }

/* Founding-price capture (docs/specs/founding-capture.md) */
.tier [hidden] { display: none !important; }
.reserve-form { margin-top: auto; display: flex; flex-direction: column; gap: 8px; }
.reserve-input {
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    background: var(--card);
    color: var(--ink);
    font: inherit;
    font-size: 16px;
}
.reserve-input::placeholder { color: var(--mute); }
.reserve-input:focus { outline: none; border-color: var(--action); box-shadow: 0 0 0 3px var(--action-soft); }
.reserve-input[aria-invalid="true"] { border-color: var(--danger); }
.reserve-input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px var(--danger-soft); }
.card p.reserve-error { margin: 0; font-size: 14px; color: var(--danger-deep); }
.reserve-form .btn { margin-top: 4px; cursor: pointer; font-family: inherit; }
.reserve-form .btn:disabled { opacity: 0.7; cursor: default; }
.reserve-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.reserve-done { margin-top: auto; margin-bottom: 12px; }
.card p.reserve-note {
    margin: 0;
    padding: 14px 16px;
    border-radius: 8px;
    background: var(--success-soft);
    color: var(--success-deep);
}
.reserve-note strong { font-weight: 600; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ----- Closing + footer ----- */
.closing .section-intro { max-width: 560px; margin-inline: auto; margin-bottom: 28px; }
.footer { border-top: 1px solid var(--hairline); padding: 28px 0; }
.footer-inner { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--body); font-size: 15px; text-decoration: none; }
.footer-links a:hover { color: var(--ink); }
.footer .fine { margin-left: auto; }

/* ----- Responsive ----- */
@media (max-width: 960px) {
    .hero-inner, .split, .steps, .cards { grid-template-columns: 1fr; }
    .hero-inner, .split { gap: 40px; }
    .steps { gap: 48px; }
    h1 { font-size: 46px; }
}

@media (max-width: 720px) {
    body { font-size: 16px; }
    .wrap { padding: 0 16px; }
    section { padding: 56px 0; }
    .hero { padding-top: 40px; }
    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    .lede { font-size: 18px; }
    .nav-inner { gap: 12px; height: 56px; }
    .nav-links { display: none; }
    .nav-actions { gap: 8px; }
    .nav-actions .btn { min-width: 0; height: 36px; padding: 0 12px; font-size: 14px; }
    .card { padding: 22px; }
    .footer-inner { gap: 16px 24px; }
    .footer .fine { margin-left: 0; width: 100%; }
}

@media (max-width: 359px) {
    .brand { font-size: 17px; }
}