/* ═══════════════════════════════════════════════════════════════
   FISI-IT Lernplattform — main.css
   3 Themes: DEV · LIGHT · OCEAN
   Fonts: Fredoka + Baloo 2 (lokal via fonts.css)
═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts Import ── */
@import url('fonts.css');

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ═══════════════════════════════════════════════════════════════
   THEMES — CSS Custom Properties
   Standard: DEV (dunkel)
═══════════════════════════════════════════════════════════════ */

:root,
[data-theme="dev"] {
  /* Hintergründe */
  --bg:           #0b0f1a;
  --bg-2:         #111827;
  --bg-3:         #1a2235;
  --bg-card:      #141c2e;
  --bg-card-hover:#1c2640;

  /* Borders */
  --border:       rgba(255,255,255,0.08);
  --border-focus: rgba(100,149,237,0.5);

  /* Text */
  --text:         #e8edf5;
  --text-2:       #8fa3c0;
  --text-3:       #536880;

  /* Akzente */
  --accent:       #6495ED;   /* Cornflower Blue */
  --accent-2:     #7EC8C8;   /* Teal */
  --accent-3:     #FFD700;   /* Gold */
  --danger:       #FF6B6B;
  --success:      #6BFF9D;
  --warning:      #FFB347;

  /* Login */
  --login-bg:     rgba(17,24,39,0.95);
  --login-border: rgba(100,149,237,0.2);
  --login-glow:   rgba(100,149,237,0.08);

  /* Header */
  --header-bg:    rgba(11,15,26,0.95);
  --header-border:rgba(255,255,255,0.06);

  /* Buttons */
  --btn-primary:  linear-gradient(135deg,#6495ED,#4a7bd4);
  --btn-secondary:rgba(255,255,255,0.06);
  --btn-hover:    rgba(255,255,255,0.1);

  /* Modul-Karten */
  --tile-bg:      rgba(20,28,46,0.8);
  --tile-border:  rgba(255,255,255,0.06);
  --tile-hover:   rgba(100,149,237,0.08);

  /* Sektionsfarben */
  --sec-netz:     #6495ED;
  --sec-sec:      #FF6B9D;
  --sec-sys:      #6BFF9D;
  --sec-prog:     #FFD700;
  --sec-exam:     #B06BFF;

  /* Schatten */
  --shadow:       0 4px 24px rgba(0,0,0,0.4);
  --shadow-card:  0 2px 12px rgba(0,0,0,0.3);

  /* Animationen */
  --transition:   0.2s ease;
}

[data-theme="light"] {
  --bg:           #f0f4ff;
  --bg-2:         #ffffff;
  --bg-3:         #e8edf8;
  --bg-card:      #ffffff;
  --bg-card-hover:#f0f6ff;

  --border:       rgba(0,0,0,0.08);
  --border-focus: rgba(70,120,220,0.4);

  --text:         #1a2235;
  --text-2:       #4a6080;
  --text-3:       #8098b8;

  --accent:       #3a7bd5;
  --accent-2:     #2196a8;
  --accent-3:     #f59e0b;
  --danger:       #ef4444;
  --success:      #10b981;
  --warning:      #f59e0b;

  --login-bg:     rgba(255,255,255,0.97);
  --login-border: rgba(58,123,213,0.2);
  --login-glow:   rgba(58,123,213,0.05);

  --header-bg:    rgba(240,244,255,0.97);
  --header-border:rgba(0,0,0,0.06);

  --btn-primary:  linear-gradient(135deg,#3a7bd5,#2563eb);
  --btn-secondary:rgba(0,0,0,0.05);
  --btn-hover:    rgba(0,0,0,0.08);

  --tile-bg:      rgba(255,255,255,0.9);
  --tile-border:  rgba(0,0,0,0.06);
  --tile-hover:   rgba(58,123,213,0.06);

  --sec-netz:     #2563eb;
  --sec-sec:      #db2777;
  --sec-sys:      #059669;
  --sec-prog:     #d97706;
  --sec-exam:     #7c3aed;

  --shadow:       0 4px 24px rgba(0,0,0,0.08);
  --shadow-card:  0 2px 8px rgba(0,0,0,0.06);

  --transition:   0.2s ease;
}

[data-theme="ocean"] {
  --bg:           #020d18;
  --bg-2:         #041422;
  --bg-3:         #061c30;
  --bg-card:      #071e32;
  --bg-card-hover:#0a2540;

  --border:       rgba(0,210,190,0.1);
  --border-focus: rgba(0,210,190,0.4);

  --text:         #d0f0ff;
  --text-2:       #6aa8c8;
  --text-3:       #3a6880;

  --accent:       #00D2BE;
  --accent-2:     #00A8FF;
  --accent-3:     #FFD700;
  --danger:       #FF6B6B;
  --success:      #00FFB4;
  --warning:      #FFB347;

  --login-bg:     rgba(4,20,34,0.97);
  --login-border: rgba(0,210,190,0.2);
  --login-glow:   rgba(0,210,190,0.05);

  --header-bg:    rgba(2,13,24,0.97);
  --header-border:rgba(0,210,190,0.08);

  --btn-primary:  linear-gradient(135deg,#00D2BE,#0098a8);
  --btn-secondary:rgba(0,210,190,0.06);
  --btn-hover:    rgba(0,210,190,0.12);

  --tile-bg:      rgba(7,30,50,0.85);
  --tile-border:  rgba(0,210,190,0.08);
  --tile-hover:   rgba(0,210,190,0.08);

  --sec-netz:     #00D2BE;
  --sec-sec:      #FF6B9D;
  --sec-sys:      #00FFB4;
  --sec-prog:     #FFD700;
  --sec-exam:     #B06BFF;

  --shadow:       0 4px 24px rgba(0,0,0,0.5);
  --shadow-card:  0 2px 12px rgba(0,0,0,0.4);

  --transition:   0.2s ease;
}

/* ═══════════════════════════════════════════════════════════════
   BASIS-STYLES
═══════════════════════════════════════════════════════════════ */

body {
  font-family: 'Fredoka', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  line-height: 1.5;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── Selektion ── */
::selection { background: var(--accent); color: #fff; }

/* ═══════════════════════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════════════════════ */

#app-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 1000;
  gap: 1rem;
}

.header-logo {
  font-family: 'Baloo 2', cursive;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--accent);
  cursor: pointer;
  letter-spacing: 0.02em;
  user-select: none;
  white-space: nowrap;
}
.header-logo:hover { opacity: 0.8; }

/* Theme-Switcher */
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-3);
  border-radius: 999px;
  padding: 4px;
  border: 1px solid var(--border);
}

.theme-btn {
  padding: 4px 12px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--text-3);
  font-family: 'Fredoka', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.theme-btn:hover { color: var(--text-2); background: var(--bg-card-hover); }
.theme-btn.is-active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* User-Info im Header */
.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-2);
}
.header-xp {
  font-family: 'Baloo 2', cursive;
  font-weight: 700;
  color: var(--accent-3);
  font-size: 0.9rem;
}
.header-level {
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.72rem;
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════
   LOGIN-SCREEN
═══════════════════════════════════════════════════════════════ */

#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  position: relative;
  overflow: hidden;
}

/* Hintergrund-Partikel */
#login-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.login-particle {
  position: absolute;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.15;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 0.15; }
  90%  { opacity: 0.08; }
  100% { transform: translateY(-20px) scale(1); opacity: 0; }
}

/* Login-Karte */
.login-card {
  background: var(--login-bg);
  border: 1px solid var(--login-border);
  border-radius: 28px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow), 0 0 60px var(--login-glow);
  animation: loginIn 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
}

@keyframes loginIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.login-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-mascot {
  font-size: 3.5rem;
  display: block;
  animation: mascotBob 3s ease-in-out infinite;
}

@keyframes mascotBob {
  0%,100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-8px) rotate(3deg); }
}

.login-title {
  font-family: 'Baloo 2', cursive;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent);
  margin-top: 0.5rem;
}

.login-subtitle {
  font-size: 0.8rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 2px;
}

/* Formular */
.login-field {
  margin-bottom: 1rem;
}

.login-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.login-input {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  color: var(--text);
  font-family: 'Fredoka', sans-serif;
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}
.login-input::placeholder { color: var(--text-3); }
.login-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--login-glow);
  background: var(--bg-card-hover);
}

/* Buttons */
.login-buttons {
  display: flex;
  gap: 8px;
  margin-top: 1.25rem;
}

.btn-primary {
  flex: 2;
  background: var(--btn-primary);
  border: none;
  border-radius: 14px;
  padding: 13px;
  color: #fff;
  font-family: 'Fredoka', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  flex: 1;
  background: var(--btn-secondary);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 13px;
  color: var(--text-2);
  font-family: 'Fredoka', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-ghost:hover { background: var(--btn-hover); color: var(--text); }

/* Login Nachricht */
.login-msg {
  text-align: center;
  font-size: 0.85rem;
  min-height: 1.2rem;
  margin-top: 0.75rem;
  border-radius: 8px;
  padding: 4px 8px;
}
.login-msg.error { color: var(--danger); background: rgba(255,107,107,0.08); }
.login-msg.success { color: var(--success); background: rgba(107,255,157,0.08); }
.login-msg.info { color: var(--accent-2); }

/* Login-Footer Stats */
.login-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-3);
}
.login-stat { display: flex; align-items: center; gap: 4px; }
.login-stat-dot { width: 7px; height: 7px; border-radius: 50%; }
.login-stat-dot.ready  { background: var(--success); box-shadow: 0 0 6px var(--success); }
.login-stat-dot.plan   { background: var(--warning); }

/* ═══════════════════════════════════════════════════════════════
   HAUPTMENÜ
═══════════════════════════════════════════════════════════════ */

#main-menu {
  display: none;
  padding: 5rem 1.5rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
  animation: menuIn 0.4s ease both;
}
#main-menu.is-visible { display: block; }

@keyframes menuIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Menü-Header */
.menu-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.menu-title {
  font-family: 'Baloo 2', cursive;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
}
.menu-title span { color: var(--accent); }

.menu-subtitle {
  font-size: 0.9rem;
  color: var(--text-3);
  margin-top: 2px;
}

/* User-Info im Menü */
.menu-user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 10px 16px;
  font-size: 0.85rem;
}

.menu-xp-bar-wrap {
  width: 80px;
  height: 5px;
  background: var(--bg-3);
  border-radius: 999px;
  overflow: hidden;
}
.menu-xp-bar {
  height: 100%;
  background: var(--btn-primary);
  border-radius: 999px;
  transition: width 0.5s ease;
}

/* Kategorie-Label */
.section-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Baloo 2', cursive;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.section-label::before {
  content: '';
  width: 3px;
  height: 16px;
  border-radius: 2px;
  background: currentColor;
}

/* Modul-Grid */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}

/* Modul-Kachel */
.module-tile {
  background: var(--tile-bg);
  border: 1px solid var(--tile-border);
  border-radius: 20px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.22s ease;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.module-tile::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}

.module-tile:hover {
  background: var(--tile-hover);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.module-tile:hover::before { opacity: 1; }
.module-tile:active { transform: translateY(-1px); }

.tile-badge {
  position: absolute;
  top: 10px; right: 10px;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 999px;
}
.badge-ready { background: rgba(107,255,157,0.12); color: var(--success); border: 1px solid rgba(107,255,157,0.2); }
.badge-neu   { background: rgba(100,149,237,0.12); color: var(--accent);  border: 1px solid rgba(100,149,237,0.2); }
.badge-bald  { background: rgba(255,179,71,0.12);  color: var(--warning); border: 1px solid rgba(255,179,71,0.2);  }

.tile-icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.tile-title {
  font-family: 'Baloo 2', cursive;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  display: block;
  margin-bottom: 3px;
}

.tile-desc {
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.5;
  display: block;
}

.tile-xp {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-3);
  background: rgba(255,215,0,0.08);
  padding: 2px 8px;
  border-radius: 999px;
}

/* Deaktivierte Kachel */
.module-tile.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════
   MODUL-SCREENS (Vollbild-Ansicht)
═══════════════════════════════════════════════════════════════ */

.module-screen {
  display: none;
  position: fixed;
  inset: 0;
  overflow-y: auto;
  background: var(--bg);
  z-index: 500;
  padding-top: 56px; /* Header-Höhe */
  animation: moduleIn 0.35s ease both;
}
.module-screen.is-visible { display: block; }

@keyframes moduleIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Zurück-Button (wird von jedem Modul genutzt) */
.mod-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 14px;
  color: var(--text-2);
  font-family: 'Fredoka', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin: 1rem 1.5rem;
}
.mod-back-btn:hover { color: var(--text); background: var(--bg-card-hover); }

/* ═══════════════════════════════════════════════════════════════
   HILFSKLASSEN
═══════════════════════════════════════════════════════════════ */

.is-hidden { display: none !important; }
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-3); }
.font-heading { font-family: 'Baloo 2', cursive; font-weight: 700; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* ── Fade-Up Animation (für Modul-Inhalte) ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.4s ease both; }