/* ============================================================================
   aivezdravotnictvi.cz - Medical Tech Design System
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0f1d;
  --bg-card: rgba(16, 24, 48, 0.75);
  --bg-card-hover: rgba(24, 36, 70, 0.85);
  --border-color: rgba(0, 210, 255, 0.15);
  --border-highlight: rgba(0, 210, 255, 0.4);
  
  --text-main: #f5f0e6;
  --text-muted: #dcd4c5;
  --text-secondary: #c4bbb0;
  --text-cream: #faf6ed;
  
  --accent-cyan: #00d2ff;
  --accent-blue: #0072ff;
  --accent-teal: #00e5a3;
  --accent-gold: #ffb703;
  --accent-purple: #a855f7;
  
  --gradient-cyan: linear-gradient(135deg, #00d2ff 0%, #0072ff 100%);
  --gradient-teal: linear-gradient(135deg, #00e5a3 0%, #00b4d8 100%);
  --gradient-gold: linear-gradient(135deg, #ffb703 0%, #fb8500 100%);
  --gradient-purple: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  
  --shadow-glow: 0 0 25px rgba(0, 210, 255, 0.2);
}

body {
  background-color: var(--bg-primary);
  background-image: url('../assets/bg_dark.jpg');
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-image 0.4s ease, background-color 0.4s ease;
}

/* 7 Color Themes */
body.theme-dark {
  --bg-primary: #090e1a;
  --bg-card: rgba(15, 23, 42, 0.82);
  --text-main: #f5f0e6;
  --text-muted: #dcd4c5;
  --accent-cyan: #00d2ff;
  --gradient-cyan: linear-gradient(135deg, #00d2ff 0%, #0072ff 100%);
  background-image: url('../assets/bg_dark.jpg');
}

body.theme-light {
  --bg-primary: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.92);
  --border-color: rgba(0, 114, 255, 0.2);
  --text-main: #0f172a;
  --text-muted: #334155;
  --accent-cyan: #0284c7;
  --gradient-cyan: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  background-image: url('../assets/bg_light.jpg');
}

body.theme-red {
  --bg-primary: #1a080c;
  --bg-card: rgba(45, 12, 18, 0.85);
  --border-color: rgba(255, 77, 77, 0.25);
  --text-main: #fce8e6;
  --text-muted: #e6c2bf;
  --accent-cyan: #ff4d4d;
  --gradient-cyan: linear-gradient(135deg, #ff4d4d 0%, #dc2626 100%);
  background-image: url('../assets/bg_red.jpg');
}

body.theme-blue {
  --bg-primary: #061126;
  --bg-card: rgba(12, 30, 65, 0.85);
  --border-color: rgba(56, 189, 248, 0.25);
  --text-main: #e6f0fc;
  --text-muted: #bfd4f5;
  --accent-cyan: #38bdf8;
  --gradient-cyan: linear-gradient(135deg, #38bdf8 0%, #1d4ed8 100%);
  background-image: url('../assets/bg_blue.jpg');
}

body.theme-green {
  --bg-primary: #061a12;
  --bg-card: rgba(12, 45, 30, 0.85);
  --border-color: rgba(52, 211, 153, 0.25);
  --text-main: #e6fce8;
  --text-muted: #bfebd0;
  --accent-cyan: #34d399;
  --gradient-cyan: linear-gradient(135deg, #34d399 0%, #059669 100%);
  background-image: url('../assets/bg_green.jpg');
}

body.theme-yellow {
  --bg-primary: #1a1506;
  --bg-card: rgba(45, 36, 12, 0.85);
  --border-color: rgba(251, 191, 36, 0.25);
  --text-main: #fcf6e6;
  --text-muted: #ebdcb5;
  --accent-cyan: #fbbf24;
  --gradient-cyan: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  background-image: url('../assets/bg_yellow.jpg');
}

body.theme-rainbow {
  --bg-primary: #12091c;
  --bg-card: rgba(30, 16, 48, 0.85);
  --border-color: rgba(236, 72, 153, 0.3);
  --text-main: #fce8fa;
  --text-muted: #e6bfe4;
  --accent-cyan: #ec4899;
  --gradient-cyan: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
  background-image: url('../assets/bg_rainbow.jpg');
}

h1, h2, h3, h4, h5, h6, .brand-title {
  font-family: 'Outfit', sans-serif;
  letter-spacing: -0.02em;
}

.text-muted {
  color: var(--text-muted) !important;
}

.text-light {
  color: var(--text-main) !important;
}

.text-secondary-bright {
  color: #c4bbb0 !important;
}

/* Header & Nav */
.navbar-custom {
  background: rgba(10, 15, 29, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
}

.brand-title {
  font-weight: 800;
  font-size: 1.4rem;
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

.nav-link-custom {
  color: var(--text-muted);
  font-weight: 500;
  text-decoration: none;
  margin-left: 1.5rem;
  transition: all 0.2s ease;
}

.nav-link-custom:hover, .nav-link-custom.active {
  color: var(--accent-cyan);
}

/* Glass Cards */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: var(--border-highlight);
}

/* Form Controls */
.form-select-custom, .form-control-custom {
  background: rgba(10, 15, 29, 0.6);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
  width: 100%;
  transition: all 0.2s ease;
}

.form-select-custom:focus, .form-control-custom:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.25);
}

.form-select-custom option {
  background: #0a0f1d;
  color: #fff;
}

/* Custom Checkbox */
.form-check-custom {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
  margin-top: 1rem;
}

.form-check-custom input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* Buttons */
.btn-primary-custom {
  background: var(--gradient-cyan);
  color: #fff;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 0.9rem 2.2rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(0, 210, 255, 0.4);
  color: #fff;
}

/* Question Option Scale (1-5 Buttons) */
.scale-group {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.scale-btn {
  background: rgba(10, 15, 29, 0.7);
  border: 1px solid var(--border-color);
  color: #ebdcc9;
  border-radius: var(--radius-md);
  padding: 0.8rem 0.5rem;
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
  user-select: none;
}

.scale-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--text-main);
  background: rgba(0, 210, 255, 0.1);
}

.scale-btn.selected {
  background: var(--gradient-cyan);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.3);
}

/* Progress bar */
.progress-bar-container {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  height: 12px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.progress-bar-fill {
  background: var(--gradient-cyan);
  height: 100%;
  border-radius: 20px;
  transition: width 0.4s ease;
}

/* Level Badges */
.badge-level {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  border-radius: 30px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1rem;
}

.badge-level-1 {
  background: rgba(0, 229, 163, 0.15);
  color: var(--accent-teal);
  border: 1px solid rgba(0, 229, 163, 0.4);
}

.badge-level-2 {
  background: rgba(0, 210, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.4);
}

.badge-level-3 {
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.4);
}

/* AI Recommendation Box */
.ai-box {
  background: rgba(0, 210, 255, 0.05);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

/* Masterclass Banner */
.masterclass-card {
  background: linear-gradient(135deg, rgba(255, 183, 3, 0.1) 0%, rgba(251, 133, 0, 0.15) 100%);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin: 1.5rem 0;
}

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsiveness */
@media (max-width: 768px) {
  .glass-card {
    padding: 1.5rem;
  }
  
  .scale-group {
    grid-template-columns: repeat(5, 1fr);
    font-size: 0.85rem;
  }
  
  .scale-btn {
    padding: 0.6rem 0.2rem;
  }
}