/* ==========================================================================
   DeutschLernen - Full telc B1 Mock Exam Simulator Stylesheet
   Design: Strict Exam Atmosphere, Modern Glassmorphism, Dual Theme,
           WCAG AA Accessible, Printable Score Report & Certificate.
   ========================================================================== */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #222d46;
  --bg-card-glass: rgba(26, 34, 53, 0.85);
  --border: #2a3550;
  --border-light: #3b486b;
  --text-primary: #f0f4fc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);
  --accent-red: #ef4444;
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.25);
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;

  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

body.light-mode, [data-theme="light"], html.light-mode {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-card-glass: rgba(255, 255, 255, 0.95);
  --border: #e2e8f0;
  --border-light: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Exam Sticky Header */
.exam-header {
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border);
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.exam-header-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.exam-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 800;
}

.exam-pill-badge {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.4);
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

/* Live Countdown Timer */
.exam-timer-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 15px;
}

.timer-warning {
  border-color: var(--accent-red) !important;
  color: var(--accent-red) !important;
  animation: timerBlink 1s infinite alternate;
}

@keyframes timerBlink {
  0% { transform: scale(1); }
  100% { transform: scale(1.05); }
}

/* Section Progress Chips */
.exam-section-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.section-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.section-chip:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
}

.section-chip.active {
  background: var(--accent-gold);
  color: #090d16;
  border-color: var(--accent-gold);
  font-weight: 600;
}

.section-chip.completed {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* Submit Exam Button */
.btn-submit-exam {
  background: var(--accent-green);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 9px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit-exam:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.22);
}

/* Main Container */
.exam-container {
  max-width: 1240px;
  margin: 24px auto;
  padding: 0 20px;
  flex: 1;
  width: 100%;
}

/* Section Card Container */
.exam-module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}

.module-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.module-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
}

.module-meta {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Text Passages Box */
.reading-passage-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.reading-passage-box p {
  margin-bottom: 14px;
}

/* Question Items */
.exam-question-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 14px;
  transition: var(--transition);
}

.exam-question-item:hover {
  border-color: var(--border-light);
}

.question-prompt {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.exam-options-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.exam-radio-label {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.exam-radio-label:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
}

.exam-radio-label.selected {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* Audio Player Box */
.hoeren-audio-player {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-audio-ctrl {
  background: var(--accent-blue);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.audio-remaining-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-blue);
}

/* Writing Textarea */
.writing-editor-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.writing-textarea {
  width: 100%;
  min-height: 260px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.6;
  outline: none;
  resize: vertical;
}

.writing-textarea:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px var(--accent-gold-glow);
}

.umlaut-buttons-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-umlaut {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}

.writing-stats-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Certificate & Score Report */
.score-report-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
}

.certificate-header {
  border-bottom: 2px solid var(--border);
  padding-bottom: 24px;
  margin-bottom: 28px;
}

.cert-logo {
  font-size: 48px;
  margin-bottom: 8px;
}

.cert-title {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.cert-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
}

.cert-result-banner {
  padding: 18px 24px;
  border-radius: var(--radius-md);
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 28px;
  display: inline-block;
}

.banner-pass {
  background: rgba(16, 185, 129, 0.15);
  border: 2px solid var(--accent-green);
  color: var(--accent-green);
}

.banner-fail {
  background: rgba(239, 68, 68, 0.15);
  border: 2px solid var(--accent-red);
  color: var(--accent-red);
}

.score-breakdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
  text-align: left;
}

.score-box-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.score-box-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.score-box-val {
  font-size: 24px;
  font-weight: 900;
  color: var(--text-primary);
}

/* Print Friendly Styles */
@media print {
  .exam-header, .btn-submit-exam, .exam-section-nav {
    display: none !important;
  }
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .score-report-card {
    border: 2px solid #000 !important;
    box-shadow: none !important;
  }
}

@media (max-width: 768px) {
  .exam-header {
    position: relative;
    padding: 10px;
  }
  .exam-header-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .exam-module-card {
    padding: 16px;
  }
  .exam-radio-label {
    width: 100%;
  }
}

@media (max-width: 768px), (pointer: coarse) {
  .section-chip,
  .btn-submit-exam {
    min-height: 44px;
    min-width: 44px;
  }
}