/* Two to Tango website. Colours match Theme.swift in the app. */
:root {
  --bg: #120b0e;
  --bg-top: #29101a;
  --surface: #201419;
  --surface-raised: #2b1b22;
  --accent: #f0a27a;
  --accent-soft: #fcdac4;
  --wine: #7a1e3a;
  --text: #faf2ed;
  --muted: rgba(250, 242, 237, 0.66);
  --line: rgba(255, 255, 255, 0.09);
  --error: #f4858c;
  --ok: #9fd8a8;
  --serif: ui-serif, "New York", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 22px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg) linear-gradient(180deg, var(--bg-top) 0, var(--bg) 560px) no-repeat;
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; height: auto; display: block; }

.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(720px, 100% - 32px); margin-inline: auto; }

/* Header */
.site-header { padding: 18px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 600 20px/1 var(--serif); }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.nav a[aria-current="page"] { color: var(--accent-soft); background: rgba(240, 162, 122, 0.12); }

/* Type */
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(40px, 7vw, 72px); }
h2 { font-size: clamp(28px, 4vw, 40px); }
h3 { font-size: 21px; }
h1 em, h2 em { color: var(--accent); font-style: italic; }
.lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--muted); max-width: 34em; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

/* Hero */
.hero { padding: 48px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-icon { width: 84px; height: 84px; border-radius: 20px; margin-bottom: 24px; box-shadow: 0 12px 40px rgba(122, 30, 58, 0.55); }
.hero-shot { justify-self: center; width: min(360px, 100%); border-radius: 28px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px var(--line); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; align-items: center; }

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--accent); color: var(--bg); font: 600 16px/1 var(--sans); text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}
.button:hover { background: var(--accent-soft); color: var(--bg); }
.button:active { transform: scale(0.98); }
.button:disabled { opacity: 0.55; cursor: default; }
.button.ghost { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1px rgba(250, 242, 237, 0.28); }
.button.ghost:hover { background: rgba(255, 255, 255, 0.06); }
.button.danger { background: transparent; color: var(--error); box-shadow: inset 0 0 0 1px rgba(244, 133, 140, 0.5); }
.button.danger:hover { background: rgba(244, 133, 140, 0.1); }
.badge-soon { padding: 10px 16px; border-radius: 999px; background: rgba(240, 162, 122, 0.12); color: var(--accent-soft); font-size: 14px; font-weight: 600; }

/* Sections */
section { padding: 64px 0; }
.section-head { max-width: 640px; margin-bottom: 36px; }
.grid { display: grid; gap: 16px; }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.card .tag { display: inline-block; margin-bottom: 14px; padding: 5px 11px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.tag.question { color: #f0a27a; background: rgba(240, 162, 122, 0.14); }
.tag.likely { color: #edc773; background: rgba(237, 199, 115, 0.14); }
.tag.challenge { color: #f5858c; background: rgba(245, 133, 140, 0.14); }
.tag.date { color: #c79eed; background: rgba(199, 158, 237, 0.14); }
.example { font-family: var(--serif); font-size: 19px; color: var(--text) !important; margin-top: 10px !important; }

.screens { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 4px 18px; }
.screens img { flex: 0 0 auto; width: 240px; border-radius: 22px; scroll-snap-align: start; box-shadow: 0 0 0 1px var(--line); }

.decks { display: flex; flex-wrap: wrap; gap: 10px; }
.decks span { padding: 9px 16px; border-radius: 999px; background: var(--surface-raised); border: 1px solid var(--line); font-family: var(--serif); font-size: 17px; }

.privacy-note { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: start; }
.privacy-note .mark { font-size: 34px; line-height: 1; }

/* Prose pages */
.page { padding: 32px 0 80px; }
.page h2 { margin-top: 1.8em; }
.prose h2 { font-size: 26px; margin-top: 2em; }
.prose h3 { margin-top: 1.6em; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--text); font-weight: 600; }
.prose ul { padding-left: 1.2em; }

details { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 4px 20px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 0 0 16px; color: var(--muted); }

/* Forms */
form { display: grid; gap: 16px; }
label { display: grid; gap: 6px; font-size: 15px; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: 13px 15px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--surface-raised); color: var(--text); font: 16px/1.4 var(--sans);
}
textarea { min-height: 150px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.hint { font-weight: 400; color: var(--muted); font-size: 13px; }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.message { margin: 0; padding: 12px 16px; border-radius: 12px; font-size: 15px; }
.message.error { color: var(--error); background: rgba(244, 133, 140, 0.1); }
.message.ok { color: var(--ok); background: rgba(159, 216, 168, 0.1); }
[hidden] { display: none !important; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 5px; border-radius: 999px; background: var(--surface-raised); margin-bottom: 24px; }
.tabs button { border: 0; border-radius: 999px; padding: 10px; background: transparent; color: var(--muted); font: 600 15px/1 var(--sans); cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--bg); }
.account-meta { display: grid; gap: 4px; margin-bottom: 8px; }
.account-meta .email { font: 600 22px/1.3 var(--serif); word-break: break-all; }
.stack { display: grid; gap: 20px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-shot { width: min(300px, 100%); }
  .grid.four { grid-template-columns: repeat(2, 1fr); }
  .grid.three { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .grid.four { grid-template-columns: 1fr; }
  .screens img { width: 200px; }
  .panel { padding: 20px; }
  .nav a { padding: 7px 9px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}