/* ============================================
   Eisenbahn-Lernportal — Shared Styles
   shared.css  |  wird in allen Seiten eingebunden
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700&family=Barlow:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ---- Themes ---- */
[data-theme="dark"] {
  --bg:           #0e0e10;
  --surface:      #18181c;
  --surface2:     #222228;
  --border:       rgba(255,255,255,0.07);
  --amber:        #f0a500;
  --amber-dim:    #a16c00;
  --text:         #e8e6df;
  --text-muted:   #888680;
  --red:          #d94040;
  --green:        #3a9e6a;
  --blue:         #3a8fd4;
  --shadow:       0 2px 14px rgba(0,0,0,0.5);
  --nav-bg:       #111115;
  --nav-btn-bg:   #1e1e24;
  --nav-btn-hover:#2a2a34;
  --footer-bg:    #0b0b0d;
  --radius:       10px;
}
[data-theme="light"] {
  --bg:           #f2f0eb;
  --surface:      #ffffff;
  --surface2:     #efefea;
  --border:       rgba(0,0,0,0.09);
  --amber:        #c47f00;
  --amber-dim:    #c47f00;
  --text:         #1a1a1a;
  --text-muted:   #888070;
  --red:          #c42e2e;
  --green:        #2d8a59;
  --blue:         #1a6fb5;
  --shadow:       0 2px 14px rgba(0,0,0,0.08);
  --nav-bg:       #e6e4df;
  --nav-btn-bg:   #ffffff;
  --nav-btn-hover:#f5f3ee;
  --footer-bg:    #dddbd6;
  --radius:       10px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Barlow', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.25s, color 0.25s;
}

/* ---- Shared Header ---- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.site-logo {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--amber);
  text-decoration: none;
  white-space: nowrap;
}
.site-logo span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.95rem;
}
.track-line {
  flex: 1;
  height: 3px;
  background: repeating-linear-gradient(
    90deg, var(--amber) 0, var(--amber) 12px, transparent 12px, transparent 20px);
  opacity: 0.35;
  min-width: 30px;
}

/* ---- Theme Toggle ---- */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--amber);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.15s, transform 0.2s;
  line-height: 1;
}
.theme-toggle:hover { border-color: var(--amber); transform: rotate(20deg); }

/* ---- Page-Nav (links to other modules) ---- */
.page-nav {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  padding: 0.55rem 1.8rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.page-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--nav-btn-bg);
  color: var(--text-muted);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.page-nav-btn:hover  { background: var(--nav-btn-hover); border-color: var(--amber); color: var(--amber); }
.page-nav-btn.active { border-color: var(--amber); color: var(--amber); background: var(--nav-btn-hover); }
.page-nav-btn svg    { opacity: 0.6; flex-shrink: 0; }
.page-nav-btn:hover svg { opacity: 1; }

/* ---- Shared Footer ---- */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--border);
  padding: 2rem 1.8rem 1.5rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  max-width: 960px;
  margin: 0 auto 1.5rem;
}
.footer-col h4 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.75rem;
}
.footer-col p, .footer-col a {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  text-decoration: none;
  display: block;
}
.footer-col a:hover { color: var(--amber); }
.footer-donate {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.donate-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  background: #FFDD00;
  color: #000;
  border: none;
  border-radius: 8px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.donate-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.donate-btn:active { transform: translateY(0); }
.donate-btn .coffee-icon { font-size: 1.1rem; }

.footer-bottom {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  opacity: 0.7;
}

/* ---- theme.js helper ---- */
.hidden { display: none !important; }

@media (max-width: 600px) {
  .site-header, .page-nav { padding: 0.7rem 1rem; }
  .page-nav-btn { font-size: 0.82rem; padding: 0.35rem 0.75rem; }
  .footer-grid  { grid-template-columns: 1fr 1fr; }
}

/* ============================================
   Schutzmaßnahmen
   ============================================ */

/* Textauswahl & Drag sperren */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Ausnahme: Eingabefelder müssen selektierbar bleiben */
input, textarea {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}

/* Bilder: kein Drag & Drop, kein Rechtsklick-Speichern */
img {
  pointer-events: none;
  -webkit-user-drag: none;
  -moz-user-drag: none;
  user-drag: none;
  -webkit-touch-callout: none;
}

/* Wasserzeichen auf Karten-Vorderseite */
.card-front::after {
  content: "© Said · dispo-tf.de";
  position: absolute;
  bottom: 0.5rem;
  right: 0.75rem;
  font-size: 0.6rem;
  color: rgba(128,128,128,0.18);
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.05em;
}

/* Wasserzeichen auf Signal-Karten */
.signal-card::after {
  content: "© Said · dispo-tf.de";
  position: absolute;
  bottom: 0.4rem;
  right: 0.75rem;
  font-size: 0.6rem;
  color: rgba(128,128,128,0.15);
  pointer-events: none;
  user-select: none;
}

/* Gesperrte Seite Overlay */
#schutz-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg, #0e0e10);
  z-index: 99999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
}
#schutz-overlay.aktiv {
  display: flex;
}
#schutz-overlay .schutz-icon {
  font-size: 4rem;
}
#schutz-overlay .schutz-text {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #e8e6df;
  letter-spacing: 0.05em;
}
#schutz-overlay .schutz-sub {
  font-size: 0.95rem;
  color: #888680;
}

/* Druckschutz */
@media print {
  body { display: none !important; }
}