/* Trainpane's site: the app's synthwave CRT palette (apps/macos/Theme.swift) on a page.
   System fonts only, so the site loads nothing from anyone else. */

:root {
    --void: #08041a;
    --deep: #14082e;
    --panel: #1b0b3b;
    --magenta: #ff2e88;
    --cyan: #25e5ff;
    --lime: #7cff3b;
    --amber: #ffc42e;
    --violet: #b06cff;
    --orange: #ff8a3d;
    --ink: #f3ebff;
    --ink-muted: rgba(243, 235, 255, 0.68);
    --ink-faint: rgba(243, 235, 255, 0.4);
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(176, 108, 255, 0.18), transparent 60%),
        radial-gradient(900px 500px at -10% 20%, rgba(255, 46, 136, 0.12), transparent 60%),
        var(--void);
    color: var(--ink);
    font: 17px/1.6 var(--sans);
    min-height: 100vh;
}

/* Scanlines, as on the app's CRT background. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 3px);
    z-index: 0;
}

a { color: var(--cyan); text-underline-offset: 3px; }
a:hover { color: var(--ink); }

.wrap {
    position: relative;
    z-index: 1;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    text-decoration: none;
}
.brand img { width: 36px; height: 36px; }

/* The app's misregistered title: cyan and magenta copies offset behind the ink. */
.wordmark {
    font: 900 20px/1 var(--mono);
    letter-spacing: 0.12em;
    text-shadow: -2px -2px 0 var(--cyan), 2px 2px 0 var(--magenta);
}

.site-nav { display: flex; gap: 20px; font: 700 13px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.site-nav a { color: var(--ink-muted); text-decoration: none; }
.site-nav a:hover { color: var(--ink); }

/* Type */

.eyebrow {
    font: 800 12px/1.4 var(--mono);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--lime);
    margin: 0 0 12px;
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 16px; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.1rem; }

.lede { font-size: 1.2rem; color: var(--ink-muted); max-width: 34em; margin: 0 0 28px; }

/* Buttons: the app's chrome keys, hard-edged with an offset shadow. */

.button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border: 2px solid var(--lime);
    background: rgba(124, 255, 59, 0.12);
    color: var(--ink);
    font: 800 14px/1 var(--mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.6);
    cursor: pointer;
}
.button:hover { background: rgba(124, 255, 59, 0.22); color: var(--ink); }
.button:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.6); }
.button[disabled] { opacity: 0.5; cursor: wait; }
.button.secondary { border-color: var(--ink-faint); background: transparent; }

/* Hero */

.hero {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 56px 0 72px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-note { font: 700 12px/1.4 var(--mono); color: var(--ink-faint); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 18px; }

/* The overlay mock: panels floating over a faint "something else on screen". */

.screen {
    position: relative;
    aspect-ratio: 4 / 3;
    border: 2px solid rgba(243, 235, 255, 0.18);
    background:
        linear-gradient(160deg, rgba(37, 229, 255, 0.10), rgba(255, 46, 136, 0.10)),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0 2px, transparent 2px 40px),
        var(--deep);
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.55);
    overflow: hidden;
}
/* A stand-in for the show or video behind the overlay. */
.screen::before {
    content: "";
    position: absolute;
    inset: 12% 8% 30% 8%;
    background:
        radial-gradient(60% 80% at 30% 100%, rgba(255, 196, 46, 0.35), transparent 70%),
        radial-gradient(50% 60% at 75% 90%, rgba(176, 108, 255, 0.35), transparent 70%),
        linear-gradient(to top, rgba(37, 229, 255, 0.12), transparent);
    filter: blur(2px);
}

.panel {
    position: absolute;
    min-width: 34%;
    padding: 10px 14px 12px;
    background: rgba(14, 5, 36, 0.78);
    border: 2px solid var(--c, var(--cyan));
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.55);
    font-family: var(--mono);
}
.panel .label { font-weight: 800; font-size: 11px; letter-spacing: 0.18em; color: var(--c, var(--cyan)); }
.panel .value { font-weight: 900; font-size: clamp(26px, 4.2vw, 40px); line-height: 1.05; text-shadow: 0 0 12px var(--c, var(--cyan)); }
.panel .unit { font-size: 0.45em; font-weight: 800; color: var(--ink-muted); margin-left: 4px; text-shadow: none; }
.panel.power { --c: var(--magenta); top: 8%; left: 6%; }
.panel.heart { --c: var(--orange); top: 8%; right: 6%; min-width: 28%; }
.panel.erg { --c: var(--lime); bottom: 8%; left: 6%; }
.panel.time { --c: var(--amber); bottom: 8%; right: 6%; min-width: 28%; }

/* Sections */

section { padding: 64px 0; }
section + section { border-top: 1px solid rgba(243, 235, 255, 0.08); }

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    padding: 22px;
    background: rgba(27, 11, 59, 0.6);
    border: 2px solid rgba(243, 235, 255, 0.12);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}
.card .glyph { font: 900 22px/1 var(--mono); color: var(--c, var(--cyan)); margin-bottom: 14px; display: block; }
.card p { color: var(--ink-muted); margin: 0; }
.card.cyan { --c: var(--cyan); }
.card.lime { --c: var(--lime); }
.card.orange { --c: var(--orange); }
.card.magenta { --c: var(--magenta); }
.card.violet { --c: var(--violet); }
.card.amber { --c: var(--amber); }

.devices { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.devices ul { margin: 0; padding-left: 1.1em; color: var(--ink-muted); }
.devices li { margin: 6px 0; }
.small { font-size: 0.92rem; color: var(--ink-faint); }

/* Signup */

.signup {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: start;
}

form { display: grid; gap: 16px; }
label { display: grid; gap: 6px; font: 800 12px/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-muted); }
label .optional { color: var(--ink-faint); font-weight: 700; letter-spacing: 0.06em; }

input[type="email"], input[type="text"], textarea {
    width: 100%;
    padding: 12px 14px;
    background: rgba(8, 4, 26, 0.8);
    border: 2px solid rgba(243, 235, 255, 0.2);
    color: var(--ink);
    font: 16px/1.4 var(--sans);
    border-radius: 0;
}
textarea { min-height: 84px; resize: vertical; }
input:focus, textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(37, 229, 255, 0.2); }

fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 8px; }
legend { font: 800 12px/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 8px; padding: 0; }
.choices { display: flex; gap: 12px; flex-wrap: wrap; }
.choice { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border: 2px solid rgba(243, 235, 255, 0.2); cursor: pointer; text-transform: none; letter-spacing: 0.02em; font: 600 15px/1 var(--sans); color: var(--ink); }
.choice:has(input:checked) { border-color: var(--lime); background: rgba(124, 255, 59, 0.1); }
.choice input { accent-color: var(--lime); margin: 0; }

.consent { font: 400 14px/1.5 var(--sans); text-transform: none; letter-spacing: 0; color: var(--ink-muted); display: flex; gap: 10px; align-items: flex-start; }
.consent input { margin-top: 4px; accent-color: var(--lime); }

/* Kept off-screen rather than hidden, so bots that skip hidden fields still fill it in. */
.trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-status { min-height: 1.5em; font: 700 14px/1.5 var(--mono); margin: 0; }
.form-status.ok { color: var(--lime); }
.form-status.error { color: #ff6b6b; }

/* Legal pages */

.doc { max-width: 760px; padding: 32px 0 80px; }
.doc h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.doc h2 { font-size: 1.35rem; margin-top: 40px; }
.doc p, .doc li { color: var(--ink-muted); }
.doc strong { color: var(--ink); }
.doc .meta { font: 700 13px/1.4 var(--mono); color: var(--ink-faint); letter-spacing: 0.06em; text-transform: uppercase; }
.doc table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 0.95rem; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid rgba(243, 235, 255, 0.12); }
.doc th { font: 800 12px/1.3 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.doc td { color: var(--ink-muted); }
.callout { padding: 16px 18px; border: 2px solid var(--amber); background: rgba(255, 196, 46, 0.08); margin: 20px 0; }
.callout p { margin: 0; color: var(--ink); }

/* Footer */

.site-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid rgba(243, 235, 255, 0.08);
    padding: 28px 0 40px;
    font-size: 0.92rem;
    color: var(--ink-faint);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--ink-muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

/* Narrow screens */

@media (max-width: 860px) {
    .hero, .signup { grid-template-columns: 1fr; gap: 36px; }
    .hero { padding-top: 24px; }
    .grid { grid-template-columns: 1fr; }
    .devices { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .wrap { padding: 0 16px; }
    .site-nav { display: none; }
    section { padding: 48px 0; }
    .panel { padding: 8px 10px; }
    .panel .label { font-size: 9px; }
}

@media (prefers-reduced-motion: no-preference) {
    .panel .value.live { animation: flicker 4s infinite steps(1); }
    @keyframes flicker { 0%, 96%, 100% { opacity: 1; } 97% { opacity: 0.75; } }
}