/* Hertha BSC Kalender — blau/weiß, ohne externe Ressourcen. */

:root {
  --blue-900: #00264c;
  --blue-800: #003773;
  --blue-700: #004c9e; /* Hertha-Blau */
  --blue-600: #005cb9;
  --blue-500: #0a72d6;
  --blue-100: #e3eefb;
  --blue-50: #f2f7fd;

  --bg: var(--blue-50);
  --surface: #ffffff;
  --surface-alt: var(--blue-100);
  --border: #cddff2;
  --text: #0d1b2a;
  --text-muted: #4a5d72;
  --accent: var(--blue-700);
  --accent-hover: var(--blue-600);
  --on-accent: #ffffff;
  --shadow: 0 1px 2px rgba(0, 38, 76, 0.06), 0 8px 24px rgba(0, 38, 76, 0.08);
  --radius: 14px;
  --maxw: 68rem;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #071523;
    --surface: #0e2136;
    --surface-alt: #123152;
    --border: #1d4470;
    --text: #e8f1fb;
    --text-muted: #9fb8d2;
    --accent: #4e9bec;
    --accent-hover: #74b3f3;
    --on-accent: #04182c;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5.5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 650; }
p { margin: 0 0 1rem; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 3px solid var(--blue-500);
  outline-offset: 2px;
  border-radius: 6px;
}

.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px;
  background: var(--surface); color: var(--text); padding: 0.75rem 1rem; z-index: 10;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- Kopfzeile ---------- */

.site-header {
  background: var(--blue-700);
  color: #fff;
  border-bottom: 4px solid #fff;
}
@media (prefers-color-scheme: dark) {
  .site-header { background: var(--blue-900); border-bottom-color: var(--blue-700); }
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.9rem 0;
}
.brand { display: flex; align-items: center; gap: 0.7rem; font-weight: 750; color: #fff; text-decoration: none; }
.brand svg { display: block; flex: none; }
.brand span { font-size: 1.05rem; letter-spacing: -0.01em; }
.header-link { color: #dcebfb; font-size: 0.92rem; text-decoration: none; }
.header-link:hover { color: #fff; text-decoration: underline; }

/* ---------- Hero ---------- */

.hero { padding: clamp(2.5rem, 7vw, 5rem) 0 1rem; }
.hero .lead { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--text-muted); max-width: 46ch; }

/* ---------- Karten ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.15rem, 3vw, 1.75rem);
}

.subscribe { margin-top: 2rem; }
.field-label { font-weight: 650; font-size: 0.95rem; display: block; margin-bottom: 0.45rem; }

.url-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.url-row input {
  flex: 1 1 22rem; min-width: 0;
  font: 0.92rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 0.75rem 0.85rem;
  color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 10px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.15rem;
  font: inherit; font-weight: 650; font-size: 0.95rem;
  border-radius: 10px; border: 1px solid transparent;
  text-decoration: none; cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn-secondary { background: var(--surface); color: var(--accent); border-color: var(--border); }
.btn-secondary:hover { background: var(--surface-alt); color: var(--accent-hover); }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.25rem; }
.actions .btn-primary { font-size: 1rem; padding: 0.85rem 1.5rem; }

.hint { font-size: 0.85rem; color: var(--text-muted); margin: 0.85rem 0 0; }
.hint strong { color: var(--text); font-weight: 650; }

/* ---------- Was im Kalender steckt ---------- */

.included {
  list-style: none; margin: 1.5rem 0 0; padding: 1.5rem 0 0;
  border-top: 1px solid var(--border);
  display: grid; gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  font-size: 0.95rem;
}
.included li { display: flex; align-items: baseline; gap: 0.6rem; }
.included span { font-size: 1.05rem; line-height: 1; flex: none; }

/* ---------- Abschnitte ---------- */

section { padding: clamp(2.25rem, 5vw, 3.5rem) 0; }
.section-intro { color: var(--text-muted); max-width: 60ch; }

.steps {
  list-style: none; counter-reset: step; padding: 0; margin: 1.5rem 0 0;
  display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.steps li { counter-increment: step; position: relative; padding-left: 3rem; }
.steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 2.1rem; height: 2.1rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent); color: var(--on-accent); font-weight: 700; font-size: 0.95rem;
}
.steps p { margin: 0.2rem 0 0; color: var(--text-muted); font-size: 0.95rem; }

/* ---------- Spielliste ---------- */

.matches { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 0.6rem; }
.match {
  display: grid; gap: 0.15rem 1rem; align-items: baseline;
  grid-template-columns: 11.5rem 1fr auto;
  padding: 0.85rem 1.1rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
}
.match-date { font-size: 0.86rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.match-teams { font-weight: 650; }
.match-teams .me { color: var(--accent); }
.match-meta { font-size: 0.82rem; color: var(--text-muted); justify-self: end; text-align: right; }
.match-score { font-variant-numeric: tabular-nums; font-weight: 700; }
.match-emoji { font-size: 0.95em; }
@media (max-width: 40rem) {
  .match { grid-template-columns: 1fr auto; }
  .match-date { grid-column: 1 / -1; }
  .match-meta { text-align: right; }
}
.status { color: var(--text-muted); font-size: 0.95rem; margin-top: 1.5rem; }

/* ---------- FAQ ---------- */

.faq { margin-top: 1.5rem; display: grid; gap: 0.6rem; }
details {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 0.9rem 1.1rem;
}
details[open] { box-shadow: var(--shadow); }
summary { cursor: pointer; font-weight: 650; }
summary::marker { color: var(--accent); }
details p { margin: 0.7rem 0 0; color: var(--text-muted); font-size: 0.95rem; }
details p:last-child { margin-bottom: 0; }

/* ---------- Fußzeile ---------- */

.site-footer {
  margin-top: 2rem;
  background: var(--blue-900);
  color: #c9dcf0;
  padding: 2.5rem 0;
  font-size: 0.9rem;
}
.site-footer a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-bottom: 1.1rem; font-weight: 600; }
.disclaimer { max-width: 62ch; margin: 0; color: #9db9d6; }
.disclaimer + .disclaimer { margin-top: 0.7rem; }

/* ---------- Rechtstexte ---------- */

.legal { padding: clamp(2rem, 5vw, 3.5rem) 0; }
.legal .card + .card { margin-top: 1rem; }
.legal h2 { margin-top: 0; }
.legal h3 { margin-top: 1.5rem; }
.legal address { font-style: normal; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: 0.35rem; }
.todo {
  background: var(--surface-alt); border-left: 4px solid var(--accent);
  padding: 0.85rem 1rem; border-radius: 0 10px 10px 0; margin: 0 0 1.25rem;
  font-size: 0.9rem;
}
.placeholder {
  background: rgba(10, 114, 214, 0.14);
  border-bottom: 2px dotted var(--accent);
  padding: 0 0.2rem; border-radius: 3px; font-weight: 600;
}
.back-link { display: inline-block; margin-top: 1.5rem; font-weight: 600; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}