/* Sincy — sincy.app. Tokens mirror the app's asset catalog. */

:root {
  --accent: #5F5CE6;
  --yellow: #FFD60A;
  --bg: #F5F5F7;
  --surface: #FFFFFF;
  --text: #1D1D1F;
  --secondary: #6E6E73;
  --hairline: rgba(0, 0, 0, 0.08);
  --radius: 26px;

  --red: #FF3B30;
  --orange: #FF9500;
  --green: #34C759;
  --pink: #FF2D55;
  --indigo: #5856D6;
  --teal: #30B0C7;

  --rounded: ui-rounded, "SF Pro Rounded", -apple-system, system-ui, sans-serif;
  --text-font: -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}

/* Appearance: Automatic follows the system; data-theme (set by theme.js) forces Light or Dark. */

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --accent: #7E7AFA;
    --bg: #000000;
    --surface: #1C1C1E;
    --text: #F5F5F7;
    --secondary: #98989D;
    --hairline: rgba(255, 255, 255, 0.1);

    --red: #FF453A;
    --orange: #FF9F0A;
    --green: #30D158;
    --pink: #FF375F;
    --indigo: #5E5CE6;
    --teal: #40C8E0;
  }
}

:root[data-theme="dark"] {
  --accent: #7E7AFA;
  --bg: #000000;
  --surface: #1C1C1E;
  --text: #F5F5F7;
  --secondary: #98989D;
  --hairline: rgba(255, 255, 255, 0.1);

  --red: #FF453A;
  --orange: #FF9F0A;
  --green: #30D158;
  --pink: #FF375F;
  --indigo: #5E5CE6;
  --teal: #40C8E0;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 var(--text-font);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hairline);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 18px;
}
.brand:hover { text-decoration: none; }
.brand picture { display: flex; }
.brand img { display: block; width: 30px; height: 30px; border-radius: 7px; }

.site-header nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.site-header nav a { color: var(--secondary); }
.site-header nav a:hover, .site-header nav a[aria-current] { color: var(--text); text-decoration: none; }

/* Appearance menu — mirrors the app's Automatic / Light / Dark picker */

.theme { position: relative; }
.theme-button {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-right: -6px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--secondary);
  cursor: pointer;
}
.theme-button:hover, .theme-button[aria-expanded="true"] { color: var(--text); background: var(--hairline); }
.theme svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.theme-menu {
  position: absolute;
  right: -6px;
  top: calc(100% + 8px);
  min-width: 190px;
  padding: 6px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.3);
}
.theme-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: 500 15px var(--text-font);
  text-align: left;
  cursor: pointer;
}
.theme-menu button:hover, .theme-menu button:focus-visible { background: var(--hairline); outline: none; }
.theme-menu .check { margin-left: auto; color: var(--accent); visibility: hidden; }
.theme-menu [aria-checked="true"] .check { visibility: visible; }

/* Hero */

.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 88px 0 32px;
}

.app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 10px 30px rgba(95, 92, 230, 0.25);
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--rounded);
  font-weight: 800;
  font-size: clamp(44px, 7vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}
.hero h1 .dot { color: var(--yellow); }

.lede {
  font-size: clamp(19px, 2.2vw, 22px);
  color: var(--secondary);
  margin: 0 0 32px;
  max-width: 30ch;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 14px;
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  font-size: 16px;
}
.badge:hover { text-decoration: none; }
.badge svg { width: 22px; height: 22px; fill: currentColor; }
.badge small { display: block; font-weight: 400; font-size: 11px; opacity: 0.75; line-height: 1.1; }
.badge span { line-height: 1.15; }

.meta { margin-top: 14px; font-size: 14px; color: var(--secondary); }

/* Event cards — same shape as EventCard.swift */

.cards { display: grid; gap: 12px; }

.card {
  --tint: var(--accent);
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--tint) 22%, var(--surface)),
    color-mix(in srgb, var(--tint) 10%, var(--surface)));
}

.card:nth-child(1) { transform: rotate(-1deg); }
.card:nth-child(3) { transform: rotate(0.8deg); }

.icon-badge {
  position: relative;
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 29px;
  background: color-mix(in srgb, var(--tint) 22%, transparent);
}
.icon-badge.crossed::after {
  content: "";
  position: absolute;
  width: 3.5px;
  height: 42px;
  border-radius: 2px;
  background: var(--text);
  transform: rotate(-45deg);
  box-shadow: 0 0 0 2.5px color-mix(in srgb, var(--tint) 22%, var(--surface));
}

.card h3 { margin: 0 0 4px; font-size: 17px; font-weight: 600; }

.count {
  font-family: var(--rounded);
  font-weight: 800;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.count .unit, .count .pre {
  font-family: var(--text-font);
  font-weight: 600;
  font-size: 20px;
  color: var(--secondary);
  letter-spacing: 0;
}
.count .pre { margin-right: 6px; }
.count .unit { margin-left: 6px; }

.breakdown { margin-top: 6px; font-size: 15px; font-weight: 500; color: var(--tint); }
.dateline { font-size: 12px; color: var(--secondary); }
.breakdown + .dateline { margin-top: 2px; }
.count + .dateline { margin-top: 6px; }

/* Sections */

section { padding: 72px 0; }

.section-title {
  font-family: var(--rounded);
  font-weight: 800;
  font-size: clamp(30px, 4.5vw, 42px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 0 0 12px;
}
.section-sub { color: var(--secondary); margin: 0 0 40px; font-size: 19px; max-width: 46ch; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--hairline);
}
.feature .glyph {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: 18px;
  background: color-mix(in srgb, var(--tint, var(--accent)) 16%, transparent);
}
.feature h3 { margin: 0 0 6px; font-size: 19px; }
.feature p { margin: 0; color: var(--secondary); font-size: 16px; }

/* Milestone strip */

.milestones {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.milestones span {
  font-family: var(--rounded);
  font-weight: 700;
  font-size: 15px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--hairline);
}
.milestones span.hit { background: var(--accent); color: #fff; border-color: transparent; }

/* Privacy callout */

.private {
  border-radius: 32px;
  padding: 56px 48px;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #000));
  color: #fff;
  text-align: center;
}
.private .section-title { color: #fff; }
.private p { color: rgba(255, 255, 255, 0.85); max-width: 48ch; margin: 0 auto 24px; font-size: 19px; }
.private ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.private li {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-weight: 600;
  font-size: 15px;
}
.private a { color: #fff; font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* Documents (privacy, support) */

.doc { max-width: 720px; padding: 64px 16px 48px; margin: 0 auto; }
.doc h1 {
  font-family: var(--rounded);
  font-weight: 800;
  font-size: clamp(36px, 6vw, 52px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 12px;
}
.doc .updated { color: var(--secondary); margin: 0 0 40px; font-size: 15px; }
.doc h2 { font-size: 22px; margin: 44px 0 10px; letter-spacing: -0.01em; }
.doc p, .doc li { color: color-mix(in srgb, var(--text) 86%, var(--bg)); }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc code {
  font: 14px ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface);
  border: 1px solid var(--hairline);
  padding: 1px 6px;
  border-radius: 6px;
}

.summary {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 20px;
  padding: 22px 26px;
  font-size: 18px;
}
.summary strong { color: var(--accent); }

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 20px;
  padding: 22px 26px;
}
.contact p { margin: 0; }
.button {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 16px;
}
.button:hover { text-decoration: none; filter: brightness(1.08); }

details {
  border-bottom: 1px solid var(--hairline);
  padding: 4px 0;
}
details summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 32px 16px 0;
  font-weight: 600;
  font-size: 18px;
  position: relative;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 12px;
  font: 400 26px/1 var(--text-font);
  color: var(--secondary);
  transition: transform 0.2s;
}
details[open] summary::after { transform: rotate(45deg); }
details > div { padding: 0 0 16px; }
details > div p:first-child { margin-top: 0; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 32px 0 48px;
  margin-top: 40px;
  font-size: 14px;
  color: var(--secondary);
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; }
.site-footer a { color: var(--secondary); }

[hidden] { display: none !important; }

/* Home: "Made for" tiles */

a.feature-link { color: inherit; display: block; transition: border-color 0.2s, transform 0.2s; }
a.feature-link:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); }
.feature-link .more { display: inline-block; margin-top: 14px; color: var(--accent); font-weight: 600; font-size: 15px; }

/* Days since calculator */

.calc-page { max-width: 720px; margin: 0 auto; padding: 56px 16px 0; }
.calc-intro { text-align: center; margin-bottom: 32px; }
.calc-intro h1 {
  font-family: var(--rounded);
  font-weight: 800;
  font-size: clamp(38px, 7vw, 60px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 14px;
  text-wrap: balance;
}
.calc-intro .lede { margin: 0 auto; text-wrap: balance; }

.calc {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 32px;
  padding: 24px;
  box-shadow: 0 20px 60px -30px rgba(95, 92, 230, 0.35);
}

.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field span {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--secondary);
  padding-left: 4px;
}
.field input {
  width: 100%;
  min-width: 0;
  min-height: 52px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--hairline);
  background: var(--bg);
  color: var(--text);
  font: 600 18px var(--text-font);
  -webkit-appearance: none;
  appearance: none;
}
.field input:focus { outline: 3px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 1px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.chips button, .copy {
  font: 600 14px var(--text-font);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.chips button:hover, .copy:hover { border-color: var(--accent); color: var(--accent); }
#today-btn { color: var(--accent); }

.result {
  --tint: var(--accent);
  margin-top: 20px;
  padding: 28px 24px 22px;
  border-radius: var(--radius);
  text-align: center;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--tint) 22%, var(--surface)),
    color-mix(in srgb, var(--tint) 10%, var(--surface)));
}
.result-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--tint);
  margin-bottom: 6px;
}
.result-count { font-size: clamp(56px, 14vw, 88px); }
.result-count .unit, .result-count .pre { font-size: clamp(22px, 5vw, 30px); }
.result .breakdown { font-size: 17px; margin-top: 10px; }
.result .dateline { font-size: 14px; margin-top: 4px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 22px 0 18px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--hairline);
  text-align: left;
}
.stats div { background: color-mix(in srgb, var(--surface) 70%, transparent); padding: 12px 14px; }
.stats dt { font-size: 12px; color: var(--secondary); font-weight: 600; }
.stats dd { margin: 2px 0 0; font-size: 15px; font-weight: 600; }
.copy { background: var(--surface); }

.cta {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin: 40px 0 0;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--hairline);
}
.cta img { width: 64px; height: 64px; border-radius: 15px; flex: none; }
.cta h2 { margin: 0 0 6px; font-size: 20px; }
.cta p { margin: 0 0 16px; color: var(--secondary); font-size: 16px; }

.calc-doc { padding: 24px 0 0; }
.calc-doc h2:first-child { margin-top: 32px; }

@media (max-width: 560px) {
  .calc { padding: 16px; border-radius: 28px; }
  .fields { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .cta { flex-direction: column; }
  .calc-page { padding-top: 36px; }
}

/* Home: random notable-date card */

.random-card { position: relative; }
.random-card h3 { padding-right: 36px; }
.random-card h3 a { color: inherit; }
.random-card h3 a:hover { color: var(--tint); text-decoration: none; }
.shuffle {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--tint) 18%, transparent);
  color: var(--tint);
  cursor: pointer;
}
.shuffle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.shuffle:hover { background: color-mix(in srgb, var(--tint) 28%, transparent); }
@media (prefers-reduced-motion: no-preference) {
  .shuffle:active svg { transform: rotate(120deg); transition: transform 0.25s; }
}

/* Did you know? */

.fact { margin-top: 40px; }
.fact-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.fact-head h2 { margin: 0; font-size: 20px; }
.fact-shuffle, .fact-open {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 600 14px var(--text-font);
  color: var(--accent);
  background: transparent;
  border: 0;
  padding: 6px 2px;
  cursor: pointer;
}
.fact-shuffle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.fact-shuffle:hover svg { transform: rotate(90deg); transition: transform 0.3s; }
.fact-card h3 { margin: 6px 0 2px; font-size: 17px; font-weight: 600; }
.fact-card .count { margin-top: 2px; }
.fact-open { margin-top: 8px; }
.fact-shuffle:hover, .fact-open:hover { text-decoration: underline; }

/* Responsive */

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 44px; padding: 48px 0 16px; }
  .hero-copy { text-align: center; }
  .hero-copy .app-icon { display: block; margin: 0 auto 24px; }
  .hero h1 { text-wrap: balance; }
  .lede { margin-left: auto; margin-right: auto; text-wrap: balance; }
  .cards { max-width: 520px; width: 100%; margin: 0 auto; }
  .features { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; }
  .private { padding: 40px 22px; border-radius: 26px; }
  section { padding: 48px 0; }
  .site-header nav { gap: 14px; }
  .site-header nav .nav-privacy { display: none; }
}

@media (prefers-reduced-motion: no-preference) {
  .card { transition: transform 0.3s ease; }
  .card:hover { transform: rotate(0) translateY(-2px); }
}