/* ==========================================================================
   Connect6 – Stylesheet (eigener Entwurf, hell/dunkel)
   ========================================================================== */

/* ---------- Variablen ---------- */
:root {
  --bg: #f5f3ee;
  --bg-alt: #ece9e1;
  --surface: #ffffff;
  --surface-2: #faf9f6;
  --text: #20242b;
  --text-dim: #5b6472;
  --border: #d9d5c9;
  --primary: #1b3a5c;
  --primary-hover: #24496f;
  --primary-soft: #e2eaf2;
  --accent: #e0a03c;
  --accent-soft: #f7ecd7;
  --accent-text: #7a4e0b;
  --danger: #b3352f;
  --danger-soft: #f6e2e0;
  --success: #2c7a46;
  --success-soft: #e0f0e5;
  --stone-b: #17181c;
  --stone-w: #f4f1ea;
  --board-bg: #dcb176;
  --board-line: #6f5127;
  --logo-bg: #1b3a5c;
  --logo-dot: #f7f3ea;
  --shadow: 0 1px 3px rgba(20, 24, 30, 0.10), 0 8px 24px rgba(20, 24, 30, 0.07);
  --radius: 10px;
  --radius-lg: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

[data-theme="dark"] {
  --bg: #14181f;
  --bg-alt: #1b212b;
  --surface: #1e2530;
  --surface-2: #232b37;
  --text: #e8ebf0;
  --text-dim: #9aa4b2;
  --border: #333c4a;
  --primary: #4d86c4;
  --primary-hover: #6399d2;
  --primary-soft: #24344a;
  --accent: #e6a944;
  --accent-soft: #3a2e17;
  --accent-text: #e9b44e;
  --danger: #e06c66;
  --danger-soft: #452a29;
  --success: #6cbf8e;
  --success-soft: #21382a;
  --stone-b: #0c0d10;
  --stone-w: #e9e6de;
  --board-bg: #b98a52;
  --board-line: #43341d;
  --logo-bg: #27476b;
  --logo-dot: #f7f3ea;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* ---------- Reset / Basis ---------- */
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main { flex: 1 0 auto; }
img, svg, canvas { max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 760px; }

/* ---------- Header ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--text); }
.brand-name { font-weight: 800; line-height: 1.1; }
/* Wortmarken-Suffix „.eu": deutlich kleiner, leicht hochgestellt, Akzentfarbe */
.brand-name .accent {
  font-size: 0.58em;
  vertical-align: 0.42em;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent-text);
  margin-left: 1px;
}
/* Beta-Abzeichen: dezente Kapsel mit Akzentfarbe, WCAG-AA-Kontrast (hell + dunkel) */
.beta-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.4;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--accent-text);
  color: var(--accent-text);
  background: var(--accent-soft);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-logo { border-radius: 8px; flex: 0 0 auto; }
.site-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.site-nav > a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}
.site-nav > a:hover { background: var(--bg-alt); text-decoration: none; }
.site-nav > a.active { color: var(--primary); background: var(--primary-soft); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-user { font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.nav-elo {
  background: var(--accent-soft);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}
.icon-btn, .lang-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.icon-btn:hover, .lang-btn:hover { background: var(--bg-alt); }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
.icon-sun { display: none; }
.icon-moon { display: block; }
.lang-form, .inline-form { display: inline; margin: 0; }
.link-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font: inherit;
  padding: 0;
}
.link-btn:hover { text-decoration: underline; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; padding: 8px; cursor: pointer; color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-large { padding: 13px 26px; font-size: 1.05rem; }
.btn-small { padding: 8px 14px; font-size: 0.88rem; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-secondary { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--bg-alt); }
.btn-ghost { background: none; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #8f2a25; color: #fff; }
.btn-danger-outline { background: none; border-color: var(--danger); color: var(--danger); }
.btn-danger-outline:hover { background: var(--danger-soft); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--primary) 0%, #24496f 60%, #2e5a86 100%);
  color: #f2f5f8;
  padding: 56px 0 64px;
  border-bottom: 4px solid var(--accent);
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero-eyebrow { color: var(--accent); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.82rem; margin-bottom: 10px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 0.3em; }
.hero-sub { font-size: 1.1rem; color: #d5dfe9; max-width: 34em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero .btn-primary { background: var(--accent); color: #231a08; }
.hero .btn-primary:hover { background: #f0b457; }
.hero .btn-secondary { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.hero .btn-secondary:hover { background: rgba(255, 255, 255, 0.2); }
.hero .btn-ghost { border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.hero .btn-ghost:hover { background: rgba(255, 255, 255, 0.12); }
.hero-board { display: flex; justify-content: center; }
.hero-board svg { width: min(100%, 340px); }
.demo-frame { fill: #b98a4e; }
.demo-grid { stroke: #5a3f22; }
.demo-stones-w circle { fill: #f0ecdf; stroke: #b9b4a5; stroke-width: 1.5; }
.demo-stones-b circle { fill: #191a1f; stroke: #4a4c55; stroke-width: 1.5; }
.demo-win circle { fill: #e0a03c; stroke: #b5792a; stroke-width: 1.5; }

/* ---------- Sektionen ---------- */
.section { padding: 52px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: 1.7rem; margin-bottom: 0.9em; text-align: center; }
.page-title { font-size: 2rem; margin-bottom: 0.4em; }
.lede { font-size: 1.1rem; color: var(--text-dim); }

/* ---------- Feature-Grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}
.feature-card h3 { font-size: 1.08rem; margin-top: 14px; }
.feature-card p { color: var(--text-dim); margin: 0; font-size: 0.95rem; }
.feature-icon { width: 58px; height: 58px; border-radius: 14px; background: var(--primary-soft); display: flex; align-items: center; justify-content: center; }
.fi-bg { fill: var(--primary-soft); stroke: var(--primary); stroke-width: 2; }
.fi-fg { fill: var(--primary); }
.feature-icon svg .fi-fg[fill="none"], .feature-icon svg path.fi-fg[stroke-width] { fill: none; stroke: var(--primary); }

/* ---------- Howto ---------- */
.howto-list { list-style: none; padding: 0; display: grid; gap: 14px; max-width: 640px; margin: 0 auto 26px; }
.howto-list li { display: flex; align-items: center; gap: 16px; font-size: 1.05rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); }
.howto-num {
  flex: 0 0 auto;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #231a08;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.howto-cta { text-align: center; }
.howto-cta .btn { margin: 0 6px; }

/* ---------- Formulare ---------- */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 480px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.form-card-danger { border-color: var(--danger); }
.field { display: block; margin-bottom: 16px; }
.field > span { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 6px; }
.field-hint { display: block; font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }
.input {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
}
.input:focus { border-color: var(--primary); outline: 3px solid var(--primary-soft); }
.form-foot { font-size: 0.9rem; color: var(--text-dim); text-align: center; margin-top: 14px; margin-bottom: 0; }
.form-card .btn { width: 100%; margin-top: 6px; }
.setup-form .btn { width: 100%; }

/* ---------- Flash ---------- */
.flash-wrap { padding-top: 16px; }
.flash {
  padding: 12px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  border: 1px solid transparent;
}
.flash-success { background: var(--success-soft); border-color: var(--success); color: var(--success); }
.flash-error { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }

/* ---------- Modus-Karten (Play) ---------- */
.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.mode-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.mode-card h2 { font-size: 1.3rem; }
.mode-card p { color: var(--text-dim); }
.mode-card .btn { margin-top: auto; }
.hint { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- Tabellen ---------- */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.table { width: 100%; border-collapse: collapse; font-size: 0.95rem; min-width: 560px; }
.table th, .table td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--border); }
.table th { background: var(--surface-2); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--surface-2); }
.row-me { background: var(--accent-soft); }
.you-badge { font-size: 0.75rem; font-weight: 700; color: var(--primary); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; }
.badge-win { background: var(--success-soft); color: var(--success); }
.badge-loss { background: var(--danger-soft); color: var(--danger); }
.badge-draw { background: var(--bg-alt); color: var(--text-dim); }

/* ---------- Profil ---------- */
.profile-head { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); margin-bottom: 26px; }
.profile-username { margin: 0 0 2px; font-size: 1.5rem; }
.profile-stats { display: flex; flex-wrap: wrap; gap: 14px; }
.stat-card {
  flex: 1 1 120px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-align: center;
}
.stat-label { display: block; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-dim); }
.stat-value { display: block; font-size: 1.5rem; font-weight: 800; }
.stat-elo { background: var(--accent-soft); border-color: var(--accent); }
.subsection-title { font-size: 1.15rem; margin-top: 1.4em; }
.profile-settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.profile-settings-grid .form-card { max-width: none; margin: 0; }
.profile-settings-grid .btn { width: auto; }

/* ---------- Lobby ---------- */
.lobby-box { text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow); }
.lobby-status { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.lobby-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 18px 0; }
.lobby-spinner { display: inline-block; width: 18px; height: 18px; border: 3px solid var(--primary-soft); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.9s linear infinite; vertical-align: -3px; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Spiel ---------- */
.section-game { padding-top: 26px; }
.game-top { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 12px; }
.game-title { font-size: 1.35rem; margin: 0; }
.game-meta { color: var(--text-dim); font-size: 0.9rem; }
.game-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 220px;
  gap: 16px;
  align-items: start;
}
.player-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 14px 16px; box-shadow: var(--shadow); }
.player-card { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.player-dot { width: 18px; height: 18px; border-radius: 50%; display: inline-block; border: 1px solid var(--border); }
.dot-b { background: var(--stone-b); }
.dot-w { background: var(--stone-w); }
.player-name { font-weight: 700; }
.player-elo { color: var(--text-dim); font-size: 0.85rem; margin-left: auto; }
.clock { font-weight: 700; font-variant-numeric: tabular-nums; background: var(--bg-alt); padding: 3px 10px; border-radius: 999px; font-size: 0.9rem; width: 100%; text-align: center; }
.clock.low { background: var(--danger-soft); color: var(--danger); }
.player-turn { outline: 3px solid var(--accent); }
.board-wrap { position: relative; display: flex; justify-content: center; }
.board-canvas {
  width: 100%;
  max-width: 640px;
  height: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  cursor: pointer;
  touch-action: manipulation;
}
.thinking-overlay, .result-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
}
.thinking-overlay { background: rgba(0, 0, 0, 0.35); flex-direction: column; gap: 14px; color: #fff; font-weight: 700; }
.spinner {
  width: 46px; height: 46px;
  border: 5px solid rgba(255, 255, 255, 0.35);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.result-overlay { background: rgba(0, 0, 0, 0.55); }
.result-box {
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius-lg);
  padding: 30px 36px;
  text-align: center;
  max-width: 90%;
  box-shadow: var(--shadow);
}
.result-box h2 { font-size: 1.6rem; }
.result-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.game-controls { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-top: 14px; }
.game-hint { margin: 0; font-weight: 600; }
.game-buttons { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Rechtsseiten ---------- */
.legal-block { margin-bottom: 26px; }
.legal-block h2 { font-size: 1.15rem; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.legal-line { margin: 0 0 4px; }
.rules-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 26px; margin-bottom: 18px; box-shadow: var(--shadow); }
.rules-block h2 { font-size: 1.15rem; }
.rules-block p:last-child { margin-bottom: 0; }
.rules-cta { text-align: center; margin-top: 28px; }
.e404-board { text-align: center; margin: 20px 0; }
.e404-board svg { max-width: 260px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 26px; padding-top: 36px; padding-bottom: 26px; }
.footer-brand p { color: var(--text-dim); font-size: 0.9rem; margin: 8px 0 0; }
.footer-brand { display: block; }
.footer-brand strong { display: inline-block; vertical-align: 14px; margin-left: 8px; font-size: 1.1rem; }
.footer-brand .brand-name .accent { font-size: 0.62em; vertical-align: 0.4em; }
.footer-col { display: flex; flex-direction: column; gap: 6px; font-size: 0.92rem; }
.footer-col strong { margin-bottom: 4px; }
.footer-col a { color: var(--text-dim); }
.footer-col a:hover { color: var(--primary); }
.footer-tactara p { color: var(--text-dim); font-size: 0.9rem; margin: 0; }
.footer-bottom { border-top: 1px solid var(--border); padding: 14px 0; font-size: 0.85rem; color: var(--text-dim); }
.footer-bottom p { margin: 0; }
.footer-bottom .accent { font-size: 0.82em; color: var(--accent-text); font-weight: 700; }
.footer-beta { margin-top: 6px; font-size: 0.78rem; color: var(--text-dim); }

/* ---------- Cookie-Banner ---------- */
.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 720px;
  margin: 0 auto;
}
.cookie-banner p { margin: 0; flex: 1 1 300px; font-size: 0.92rem; }
.cookie-actions { display: flex; gap: 10px; align-items: center; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .mode-grid { grid-template-columns: 1fr; }
  .game-layout { grid-template-columns: 1fr; }
  .player-panel { order: 2; }
  .board-wrap { order: 1; }
  .game-layout .player-panel:first-of-type { order: 3; }
  .profile-settings-grid { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-board { order: -1; }
}
@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 10px 16px 16px;
    gap: 2px;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .nav-right { margin-left: 0; flex-wrap: wrap; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .game-controls { justify-content: center; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .spinner, .lobby-spinner { animation-duration: 1.6s; }
}