/* Tippi website: shared styles for index, impressum and datenschutz.
   Design tokens of the app family "Schiefer" (slate). Source of truth:
   Tippi/UI/FamilyTheme.swift (app = .tippi). Change values there first,
   then here. The page follows the system appearance (light/dark). */

/* ── Font: Plus Jakarta Sans, self-hosted (SIL OFL 1.1, see fonts/OFL.txt) ── */
@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("fonts/PlusJakartaSans-Variable.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("fonts/PlusJakartaSans-Italic-Variable.woff2") format("woff2");
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}

/* ── Tokens (FamilyTheme) ─────────────────────────────────────────────────── */
:root {
  color-scheme: light dark;

  --accent: #3E5998;          /* accent, links, icons, focus */
  --accent-rgb: 62, 89, 152;
  --accent-fill: #3E5998;     /* accentFill: surfaces carrying white text */
  --accent-fill-hover: #354D83;
  --on-accent-fill: #FFFFFF;  /* 6.8:1 light, 4.7:1 dark */

  --bg-top: #F3F5F9;
  --bg-middle: #E7E9F1;
  --bg-bottom: #D9DDE8;
  --card: #FFFFFF;
  --card-stroke: #E2E5EE;
  --glass-tint: rgba(243, 245, 249, .78);
  --text: #1E2433;
  --text-2: #56607E;
  --shadow: 0 8px 18px rgba(30, 40, 70, .10);

  --radius-card: 28px;
  --radius-tile: 20px;
  --radius-field: 14px;

  --maxw: 1080px;
  --font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #98AEE1;
    --accent-rgb: 152, 174, 225;
    --accent-fill: #5172BD;
    --accent-fill-hover: #4662A3;
    --on-accent-fill: #FFFFFF;

    --bg-top: #0D1019;
    --bg-middle: #161A25;
    --bg-bottom: #1F2433;
    --card: #1B2130;
    --card-stroke: #2A3142;
    --glass-tint: rgba(22, 26, 37, .78);
    --text: #ECEFF6;
    --text-2: #A3ACC8;
    --shadow: 0 8px 18px rgba(0, 0, 0, .35);
  }
}

/* ── Base ─────────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  font-family: var(--font);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-middle) 50%, var(--bg-bottom) 100%);
  background-color: var(--bg-top);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}
strong, b { font-weight: 600; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .92em; }
img { max-width: 100%; }
a { color: var(--accent); text-decoration: underline; text-decoration-color: rgba(var(--accent-rgb), .35); text-underline-offset: 2px; }
a:hover { text-decoration-color: currentColor; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute; left: 16px; top: 12px; z-index: 100;
  transform: translateY(-200%);
  background: var(--card); color: var(--text);
  border: 1px solid var(--card-stroke); border-radius: var(--radius-field);
  padding: 10px 16px; font-weight: 500; text-decoration: none;
  box-shadow: var(--shadow);
}
.skip-link:not(:focus) { box-shadow: none; }
.skip-link:focus { transform: none; }

/* Bilingual visibility: one hidden language at a time */
html[lang="en"] [data-lang="de"] { display: none !important; }
html[lang="de"] [data-lang="en"] { display: none !important; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Line icons: inline SVG, stroke = currentColor, one stroke width */
.ico { width: 18px; height: 18px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ── Nav: floating, the only glass surface (design rule G1) ───────────────── */
nav.top {
  position: sticky; top: 0; z-index: 10;
  background: var(--glass-tint);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--card-stroke);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 19px; color: var(--text); text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 50%; }
.nav-right { display: flex; gap: 20px; align-items: center; }
.nav-links { display: flex; gap: 20px; align-items: center; font-size: 14px; font-weight: 500; }
.nav-links a { color: var(--text-2); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: color .15s ease; }
.nav-links a:hover { color: var(--text); }
.nav-links .ico { width: 16px; height: 16px; }

.lang-toggle {
  display: inline-flex; padding: 3px; gap: 2px;
  background: var(--card); border: 1px solid var(--card-stroke);
  border-radius: 999px; font-size: 12px;
}
.lang-toggle button {
  background: transparent; border: none; border-radius: 999px;
  color: var(--text-2); padding: 5px 11px; min-height: 28px;
  cursor: pointer; font-family: inherit; font-weight: 500; letter-spacing: .04em;
  transition: background .15s ease, color .15s ease;
}
.lang-toggle button:hover { color: var(--text); }
.lang-toggle button[aria-pressed="true"] { background: var(--accent-fill); color: var(--on-accent-fill); }
.lang-toggle button:active { transform: translateY(1px); }

/* ── Buttons (capsules) ───────────────────────────────────────────────────── */
.cta-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 24px;
  background: var(--accent-fill); color: var(--on-accent-fill);
  border: 1px solid transparent; border-radius: 999px;
  font-family: inherit; font-weight: 500; font-size: 16px; line-height: 1.3;
  text-decoration: none; text-align: center; cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .1s ease;
}
.btn:hover { background: var(--accent-fill-hover); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: var(--card); color: var(--text); border-color: var(--card-stroke); }
.btn.ghost:hover { border-color: var(--accent); }
/* Buy Me a Coffee, rebuilt without the vendor script: brand yellow in light and dark */
.btn.coffee-btn { background: #FFDD00; color: #000000; border-color: rgba(0, 0, 0, .16); font-weight: 600; }
.btn.coffee-btn:hover { background: #F2D200; border-color: rgba(0, 0, 0, .32); }
.btn.coffee-btn:active { background: #E6C700; }
.btn.coffee-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 999px; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { padding: 72px 0 64px; text-align: center; }
.hero img.mascot {
  width: 112px; height: 112px; border-radius: 50%;
  margin-bottom: 24px; box-shadow: var(--shadow);
}
.news {
  display: inline-block; margin: 0 auto 22px; max-width: 100%;
  padding: 6px 14px; border-radius: var(--radius-field);
  background: rgba(var(--accent-rgb), .12);
  border: 1px solid rgba(var(--accent-rgb), .26);
  color: var(--text); font-size: 14px; font-weight: 500;
}
h1 {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 600; letter-spacing: -0.02em; line-height: 1.1;
  margin-bottom: 18px;
}
h1 .accent { color: var(--accent); }
.hero p.sub {
  font-size: clamp(18px, 2vw, 21px); color: var(--text-2);
  max-width: 60ch; margin: 0 auto 32px;
}
.hero small { display: block; margin-top: 18px; color: var(--text-2); font-size: 14px; }
.hero .contrast { margin-top: 4px; font-size: 13px; }

.app-strip { margin: 36px auto 0; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; max-width: 560px; }
.app-strip .label { width: 100%; color: var(--text-2); font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px; }
.app-chip { display: inline-block; padding: 5px 12px; border: 1px solid var(--card-stroke); border-radius: 999px; font-size: 13px; background: var(--card); }

/* ── Sections ─────────────────────────────────────────────────────────────── */
section { padding: 72px 0; }
section h2 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 600; letter-spacing: -0.01em; line-height: 1.2;
  margin-bottom: 12px; text-align: center;
}
section p.lead {
  font-size: 18px; color: var(--text-2);
  max-width: 60ch; margin: 0 auto 40px; text-align: center;
}

.card {
  background: var(--card); border: 1px solid var(--card-stroke);
  border-radius: var(--radius-card); box-shadow: var(--shadow);
}

/* One app instead of eight */
.core { padding: 28px; margin: 0 auto 16px; display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; align-items: start; }
.core .tile-icon { grid-row: span 2; }
.core h3 { font-size: 19px; font-weight: 600; }
.core p { color: var(--text-2); font-size: 15px; }
.replaces { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; align-items: stretch; }
.replaces li {
  background: var(--card); border: 1px solid var(--card-stroke);
  border-radius: var(--radius-tile); padding: 18px 20px;
  display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; align-items: start; align-content: start;
}
.replaces .tile-icon { grid-row: span 3; }
.replaces .task { font-weight: 600; font-size: 15px; }
.replaces .instead { font-size: 13px; color: var(--text-2); }
.replaces .inTippi { font-size: 14px; }
.why-one { max-width: 65ch; margin: 28px auto 0; text-align: center; color: var(--text-2); font-size: 16px; }

.tile-icon {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(var(--accent-rgb), .14); color: var(--accent);
}
.tile-icon .ico { width: 22px; height: 22px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { padding: 28px; }
.step .n {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent-fill); color: var(--on-accent-fill);
  font-weight: 600; display: grid; place-items: center; margin-bottom: 16px;
}
.step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step p { color: var(--text-2); font-size: 15px; }

/* Comparison */
table.compare {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--card); border: 1px solid var(--card-stroke);
  border-radius: var(--radius-tile); overflow: hidden; box-shadow: var(--shadow);
}
table.compare th, table.compare td { padding: 16px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--card-stroke); font-size: 15px; }
table.compare th { font-weight: 600; background: rgba(var(--accent-rgb), .08); }
table.compare tr:last-child td { border-bottom: none; }
table.compare td:first-child { color: var(--text-2); }
table.compare td.tippi { font-weight: 500; }

/* Features */
/* Equal-height tiles per row (grid stretch), content top-aligned, no fixed heights */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; align-items: stretch; }
.feature { padding: 26px; display: flex; flex-direction: column; justify-content: flex-start; }
.feature h3 .labs { font-size: 12.5px; font-weight: 500; color: var(--text-2); letter-spacing: .02em; }
.more-link { margin-top: 24px; text-align: center; font-size: 15px; font-weight: 500; }
.feature .icon {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 14px;
  display: grid; place-items: center;
  background: rgba(var(--accent-rgb), .14); color: var(--accent);
}
.feature .icon svg { width: 24px; height: 24px; display: block; }
.feature h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; line-height: 1.35; }
.feature p { color: var(--text-2); font-size: 14.5px; line-height: 1.55; }

/* Privacy */
.privacy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 12px; }
.privacy-item {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px;
  background: var(--card); border: 1px solid var(--card-stroke); border-radius: var(--radius-tile);
}
.privacy-item .check { width: 32px; height: 32px; border-radius: 10px; flex-shrink: 0; display: grid; place-items: center; background: rgba(var(--accent-rgb), .14); color: var(--accent); }
.privacy-item p { font-size: 14px; color: var(--text-2); line-height: 1.55; }
.privacy-item strong { display: block; margin-bottom: 4px; }

/* Providers */
.providers { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.provider { background: var(--card); border: 1px solid var(--card-stroke); padding: 18px 14px; border-radius: var(--radius-tile); text-align: center; }
.provider .pname { font-weight: 600; margin-bottom: 4px; }
.provider .ptag { font-size: 12.5px; color: var(--text-2); }
.provider.local { border-color: rgba(var(--accent-rgb), .45); background: linear-gradient(rgba(var(--accent-rgb), .07), rgba(var(--accent-rgb), .07)), var(--card); }
.provider.local .ptag { color: var(--accent); font-weight: 500; }

/* Built-in prompts */
.builtins { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }
.builtin { background: var(--card); border: 1px solid var(--card-stroke); padding: 12px 14px; border-radius: var(--radius-field); font-size: 13.5px; color: var(--text-2); }
.builtin strong { color: var(--text); display: block; font-size: 14.5px; font-weight: 500; }

/* FAQ */
.faq { max-width: 780px; margin: 0 auto; }
.faq details { background: var(--card); border: 1px solid var(--card-stroke); border-radius: var(--radius-tile); padding: 0 22px; margin-bottom: 10px; }
.faq summary {
  cursor: pointer; padding: 18px 0; font-weight: 600; font-size: 16px;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex-shrink: 0; width: 8px; height: 8px; margin-right: 4px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: translateY(-2px) rotate(45deg); transition: transform .15s ease;
}
.faq details[open] summary::after { transform: translateY(2px) rotate(-135deg); }
.faq summary:hover { color: var(--accent); }
.faq details p { color: var(--text-2); font-size: 15px; line-height: 1.6; padding-bottom: 18px; max-width: 65ch; }

.final { text-align: center; }
.coffee { margin-top: 40px; }
.coffee p { color: var(--text-2); font-size: 15px; max-width: 60ch; margin: 0 auto 14px; }
.coffee .btn { max-width: 100%; }

footer { padding: 40px 0 48px; border-top: 1px solid var(--card-stroke); color: var(--text-2); font-size: 13.5px; text-align: center; }
footer p + p { margin-top: 8px; }
footer a { color: var(--text-2); }
footer a:hover { color: var(--text); }

/* ── Legal pages (impressum, datenschutz) ─────────────────────────────────── */
.legal .wrap { max-width: 760px; padding: 56px 24px 96px; }
.legal { line-height: 1.65; }
.legal .home { display: inline-flex; margin-bottom: 36px; }
.legal h1 { font-size: clamp(27px, 7vw, 34px); margin: 0 0 8px; hyphens: auto; }
.legal .lead { color: var(--text-2); margin: 0 0 36px; }
.legal h2 { font-size: 1.08em; font-weight: 600; color: var(--accent); margin: 36px 0 10px; letter-spacing: .01em; }
.legal p { margin: 0 0 12px; max-width: 65ch; }
.legal ul { margin: 0 0 12px; padding-left: 22px; max-width: 65ch; }
.legal li { margin: 0 0 6px; }
.legal .card { padding: 20px 24px; margin: 0 0 12px; border-radius: var(--radius-tile); }
.legal .small { font-size: .92em; color: var(--text-2); }
.legal .back { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--card-stroke); font-size: .92em; }

/* ── Small screens ────────────────────────────────────────────────────────── */
/* Section anchors leave the nav first; GitHub, Support and language stay reachable */
@media (max-width: 960px) {
  .nav-links .anchor { display: none; }
}
@media (max-width: 720px) {
  .nav-right, .nav-links { gap: 14px; }
  .nav-links .gh-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .nav-links a { min-height: 44px; }
  .steps { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding: 48px 0 40px; }
  .wrap { padding: 0 16px; }
  .replaces, .features, .privacy-grid { grid-template-columns: 1fr; }
  .core { grid-template-columns: 1fr; padding: 22px; }
  .core .tile-icon { grid-row: auto; }
  .cta-group .btn { width: 100%; }

  /* Comparison table stacks: "others" line above the Tippi line */
  table.compare thead { display: none; }
  table.compare, table.compare tbody, table.compare tr, table.compare td { display: block; width: 100%; }
  table.compare td { border-bottom: none; padding: 0 18px; }
  table.compare tr { padding: 14px 0; border-bottom: 1px solid var(--card-stroke); }
  table.compare tr:last-child { border-bottom: none; }
  table.compare td:first-child { font-size: 13.5px; margin-bottom: 4px; }
}
@media (max-width: 480px) {
  /* The mascot carries the name; the text stays for screen readers */
  .brand-name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* Demo video (self-hosted) */
.demo { padding-top: 8px; }
.demo video { display: block; width: 100%; max-width: 1100px; height: auto; aspect-ratio: 16 / 9; margin: 0 auto; border-radius: var(--radius-tile); box-shadow: var(--shadow); background: #0D1019; }