/* NeuroLingo – RUDI-Design-Variablen (Apple Glasmorphism, Light/Dark)
 * Spiegelt /var/www/html/mein/style.css, damit das Modul sich nahtlos einfuegt.
 */
@import url('/shared/fonts/inter.css');

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

:root {
  --bg: linear-gradient(145deg, #eef2f7 0%, #e4ecf4 25%, #dfe8f0 50%, #e8eef5 75%, #f0f4f8 100%);
  --nav-bg: rgba(255,255,255,0.55);
  --nav-border: rgba(255,255,255,0.5);
  --card-bg: rgba(255,255,255,0.55);
  --card-border: rgba(255,255,255,0.65);
  --card-hover-bg: rgba(255,255,255,0.75);
  --card-shadow: 0 2px 16px rgba(0,0,0,0.04);
  --card-hover-shadow: 0 12px 44px rgba(0,0,0,0.08);
  --text-primary: #1c1c1e;
  --text-secondary: #636366;
  --text-tertiary: #8e8e93;
  --accent: #04b3d6;
  --accent-hover: #0090b0;
  --badge-bg: rgba(4,179,214,0.12);
  --badge-color: #04b3d6;
  --input-bg: rgba(255,255,255,0.75);
  --input-border: rgba(0,0,0,0.08);
  --success: #30d158;
  --success-bg: rgba(48,209,88,0.12);
  --warning: #ff9f0a;
  --warning-bg: rgba(255,159,10,0.12);
  --error: #ff453a;
  --error-bg: rgba(255,69,58,0.10);
  --streak-bg: rgba(255,159,10,0.12);
  --streak-color: #c5631a;
}

[data-theme="dark"] {
  --bg: linear-gradient(145deg, #0a0d13 0%, #0e1420 20%, #101826 40%, #0d141d 60%, #0b0f16 80%, #0d1318 100%);
  --nav-bg: rgba(20,22,30,0.6);
  --nav-border: rgba(255,255,255,0.08);
  --card-bg: rgba(255,255,255,0.08);
  --card-border: rgba(255,255,255,0.12);
  --card-hover-bg: rgba(255,255,255,0.12);
  --card-shadow: 0 2px 16px rgba(0,0,0,0.2);
  --card-hover-shadow: 0 12px 44px rgba(0,0,0,0.3);
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-tertiary: #636366;
  --accent: #2cc5e4;
  --accent-hover: #04b3d6;
  --badge-bg: rgba(4,179,214,0.18);
  --badge-color: #2cc5e4;
  --input-bg: rgba(255,255,255,0.06);
  --input-border: rgba(255,255,255,0.1);
  --success: #30d158;
  --success-bg: rgba(48,209,88,0.16);
  --warning: #ff9f0a;
  --warning-bg: rgba(255,159,10,0.16);
  --error: #ff453a;
  --error-bg: rgba(255,69,58,0.14);
  --streak-bg: rgba(255,159,10,0.18);
  --streak-color: #ff9f0a;
}

html, body {
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  background: var(--bg);
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#root { min-height: 100vh; }
* { -webkit-tap-highlight-color: transparent; }

/* Theme-Toggle-Button */
.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.1s, background 0.2s;
}
.theme-toggle:hover { background: var(--card-hover-bg); }
.theme-toggle:active { transform: scale(0.95); }