/* ═══════════════════════════════════════
   Weatherblazer India Pvt. Ltd.
   Training Portal - Mobile Responsive
   Fonts: Lato (body) + Poppins (headings)
   ═══════════════════════════════════════ */

:root {
  --primary: #FF512F;
  --primary-dark: #E03E1F;
  --secondary: #0F253E;
  --secondary-light: #1A3A5C;
  --bg-primary: #F8F9FA;
  --bg-surface: #FFFFFF;
  --bg-elevated: #F0F2F5;
  --text-primary: #0F253E;
  --text-secondary: #5A6B7F;
  --text-muted: #8B95A5;
  --border: #E2E6EB;
  --border-light: #EEF1F4;
  --success: #2E7D5B;
  --success-light: #E6F5EE;
  --warning: #D4683C;
  --warning-light: #FDF0E8;
  --danger: #8B3A3A;
  --danger-light: #F8EAEA;
  --shadow-sm: 0 1px 3px rgba(15,37,62,0.04), 0 1px 2px rgba(15,37,62,0.06);
  --shadow-md: 0 4px 12px rgba(15,37,62,0.08), 0 2px 4px rgba(15,37,62,0.04);
  --shadow-lg: 0 12px 32px rgba(15,37,62,0.12), 0 4px 8px rgba(15,37,62,0.06);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-body: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1120px;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.3; color: var(--text-primary); font-weight: 600; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

@media (min-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.375rem; }
  h4 { font-size: 1.25rem; }
}

/* Layout */
.page-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 16px 60px;
  padding-top: 80px;
}

@media (min-width: 768px) {
  .page-content {
    padding: 24px 24px 60px;
    padding-top: 88px;
  }
}

.container { max-width: var(--max-width); margin: 0 auto; }

/* Navbar */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  height: 64px;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

@media (min-width: 768px) {
  .nav-inner { padding: 0 24px; gap: 24px; }
}

.nav-brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 0.95rem; color: var(--text-primary);
  text-decoration: none;
}

@media (min-width: 768px) {
  .nav-brand { font-size: 1rem; gap: 10px; }
}

.nav-logo-img {
  width: 36px; height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

@media (min-width: 768px) {
  .nav-logo-img { width: 40px; height: 40px; }
}

.nav-title {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--secondary);
  white-space: nowrap;
}

.nav-links { display: none; gap: 4px; margin-left: 16px; }

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-link {
  padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

@media (min-width: 768px) {
  .nav-link { padding: 8px 14px; font-size: 0.9rem; }
}

.nav-link:hover, .nav-link.active { background: var(--bg-elevated); color: var(--text-primary); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

@media (min-width: 768px) {
  .nav-right { gap: 12px; }
}

.user-badge {
  display: none;
  font-size: 0.825rem; font-weight: 500; color: var(--text-secondary);
  padding: 6px 10px; background: var(--bg-elevated); border-radius: var(--radius-sm);
}

@media (min-width: 768px) {
  .user-badge { display: inline-block; }
}

/* Mobile Menu */
.mobile-menu-btn {
  display: flex; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; position: relative;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}

@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

.mobile-menu-btn span {
  display: block; width: 20px; height: 2px; background: var(--text-primary);
  border-radius: 2px; transition: var(--transition);
}

.mobile-menu {
  position: absolute; top: 64px; left: 0; right: 0;
  background: var(--bg-surface); border-bottom: 1px solid var(--border);
  padding: 12px 16px; display: flex; flex-direction: column; gap: 4px;
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .mobile-menu { display: none; }
}

.mobile-menu a, .mobile-menu button {
  display: block; padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 0.95rem; color: var(--text-primary); background: none; border: none;
  text-align: left; cursor: pointer; font-family: var(--font-body);
  width: 100%;
}

.mobile-menu a:hover, .mobile-menu button:hover { background: var(--bg-elevated); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size: 0.875rem; font-weight: 600;
  border: none; cursor: pointer; transition: var(--transition);
  text-decoration: none; line-height: 1.4;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .btn { font-size: 0.9rem; padding: 10px 20px; }
}

.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #236B4A; color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-elevated); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Forms */
.form-group { margin-bottom: 16px; }

@media (min-width: 768px) {
  .form-group { margin-bottom: 18px; }
}

.form-label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 10px 12px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.9rem;
  background: var(--bg-surface); color: var(--text-primary);
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,81,47,0.1);
}

.form-textarea { resize: vertical; min-height: 80px; line-height: 1.6; }

@media (min-width: 768px) {
  .form-textarea { min-height: 100px; }
}

.form-hint { font-size: 0.775rem; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: 0.775rem; color: var(--danger); margin-top: 4px; }

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

@media (min-width: 768px) {
  .card { padding: 24px; }
}

.card:hover { box-shadow: var(--shadow-md); }
.card-clickable { cursor: pointer; }
.card-clickable:hover { border-color: var(--primary); transform: translateY(-2px); }

/* Module Cards */
.module-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 20px;
}

@media (min-width: 640px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (min-width: 1024px) {
  .module-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

.module-card { position: relative; overflow: hidden; }
.module-card-header {
  display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px;
}

.module-icon {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; border-radius: var(--radius-sm); flex-shrink: 0;
}

@media (min-width: 768px) {
  .module-icon { width: 48px; height: 48px; font-size: 1.5rem; }
}

.module-card h3 { font-size: 1.1rem; margin-bottom: 4px; }

@media (min-width: 768px) {
  .module-card h3 { font-size: 1.15rem; }
}

.module-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }

@media (min-width: 768px) {
  .module-card p { font-size: 0.875rem; }
}

.module-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border-light);
  gap: 8px;
}

.module-chapters { font-size: 0.8rem; color: var(--text-muted); }

/* Progress Bar */
.progress-bar {
  width: 100%; height: 6px; background: var(--bg-elevated);
  border-radius: 3px; overflow: hidden;
}

.progress-fill {
  height: 100%; border-radius: 3px;
  background: var(--primary); transition: width 0.4s ease;
}

.progress-fill.complete { background: var(--success); }
.progress-text {
  display: flex; justify-content: space-between;
  font-size: 0.75rem; color: var(--text-muted); margin-top: 6px;
}

/* Chapter List */
.chapter-list { margin-top: 16px; }

@media (min-width: 768px) {
  .chapter-list { margin-top: 20px; }
}

.chapter-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--bg-surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 8px; cursor: pointer; transition: var(--transition);
}

@media (min-width: 768px) {
  .chapter-item { gap: 16px; padding: 16px 20px; }
}

.chapter-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }

.chapter-num {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  background: var(--bg-elevated); border-radius: 50%; font-size: 0.825rem; font-weight: 600;
  color: var(--text-secondary); flex-shrink: 0;
}

.chapter-num.completed { background: var(--success); color: white; }
.chapter-info { flex: 1; min-width: 0; }
.chapter-info h3 { font-size: 0.925rem; margin-bottom: 2px; }

@media (min-width: 768px) {
  .chapter-info h3 { font-size: 0.95rem; }
}

.chapter-info span { font-size: 0.8rem; color: var(--text-muted); }
.chapter-status { font-size: 0.775rem; font-weight: 600; white-space: nowrap; }
.chapter-status.completed { color: var(--success); }
.chapter-status.pending { color: var(--text-muted); }

/* Chapter Viewer */
.chapter-viewer { max-width: 800px; }
.chapter-header { margin-bottom: 20px; }

@media (min-width: 768px) {
  .chapter-header { margin-bottom: 24px; }
}

.chapter-breadcrumb {
  font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}

.chapter-breadcrumb a { color: var(--primary); }

.chapter-video {
  width: 100%; border-radius: var(--radius-md); overflow: hidden;
  margin-bottom: 20px; background: #000; aspect-ratio: 16/9;
}

@media (min-width: 768px) {
  .chapter-video { margin-bottom: 24px; }
}

.chapter-video video { width: 100%; height: 100%; object-fit: cover; }

.chapter-image {
  width: 100%; border-radius: var(--radius-md); overflow: hidden;
  margin-bottom: 20px;
}

@media (min-width: 768px) {
  .chapter-image { margin-bottom: 24px; }
}

.chapter-image img { width: 100%; height: 200px; object-fit: cover; }

@media (min-width: 768px) {
  .chapter-image img { height: 240px; }
}

.chapter-content {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 20px; margin-bottom: 20px;
  font-size: 0.9rem; line-height: 1.7;
}

@media (min-width: 768px) {
  .chapter-content { padding: 28px; font-size: 0.95rem; }
}

.chapter-content p { margin-bottom: 12px; }

@media (min-width: 768px) {
  .chapter-content p { margin-bottom: 14px; }
}

.chapter-content ul, .chapter-content ol { margin: 10px 0 10px 20px; }
.chapter-content li { margin-bottom: 6px; }
.chapter-content strong { font-weight: 600; }

/* Quiz */
.quiz-section {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 20px; margin-bottom: 20px;
}

@media (min-width: 768px) {
  .quiz-section { padding: 28px; margin-bottom: 24px; }
}

.quiz-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .quiz-header { margin-bottom: 20px; }
}

.quiz-header h2 { font-size: 1.15rem; }

@media (min-width: 768px) {
  .quiz-header h2 { font-size: 1.3rem; }
}

.quiz-counter { font-size: 0.825rem; color: var(--text-secondary); font-weight: 500; }

.quiz-question {
  margin-bottom: 20px; padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

@media (min-width: 768px) {
  .quiz-question { margin-bottom: 24px; padding-bottom: 24px; }
}

.quiz-question:last-of-type { border-bottom: none; }

.quiz-question-text {
  font-weight: 600; font-size: 0.9rem; margin-bottom: 10px;
  display: flex; gap: 8px; line-height: 1.4;
}

@media (min-width: 768px) {
  .quiz-question-text { font-size: 0.95rem; margin-bottom: 12px; }
}

.quiz-question-text span { color: var(--primary); font-weight: 700; }

.quiz-options { display: flex; flex-direction: column; gap: 8px; }

.quiz-option {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer;
  transition: var(--transition); font-size: 0.875rem;
}

@media (min-width: 768px) {
  .quiz-option { gap: 12px; padding: 12px 16px; font-size: 0.9rem; }
}

.quiz-option:hover { border-color: var(--primary); background: var(--bg-elevated); }
.quiz-option.selected { border-color: var(--primary); background: #FFF5F2; }
.quiz-option.correct { border-color: var(--success); background: var(--success-light); }
.quiz-option.incorrect { border-color: var(--danger); background: var(--danger-light); }

.quiz-option-radio {
  width: 18px; height: 18px; border: 2px solid var(--border);
  border-radius: 50%; flex-shrink: 0; position: relative;
  transition: var(--transition);
}

.quiz-option.selected .quiz-option-radio { border-color: var(--primary); }
.quiz-option.selected .quiz-option-radio::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 8px; height: 8px; background: var(--primary); border-radius: 50%;
}

.quiz-actions { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }

@media (min-width: 768px) {
  .quiz-actions { margin-top: 20px; gap: 12px; }
}

/* Results */
.result-card {
  text-align: center; padding: 32px 20px;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); margin-bottom: 20px;
}

@media (min-width: 768px) {
  .result-card { padding: 40px 28px; margin-bottom: 24px; }
}

.result-icon { font-size: 2.5rem; margin-bottom: 12px; }

@media (min-width: 768px) {
  .result-icon { font-size: 3rem; margin-bottom: 16px; }
}

.result-score {
  font-family: var(--font-heading); font-size: 2rem;
  font-weight: 700; margin-bottom: 8px;
}

@media (min-width: 768px) {
  .result-score { font-size: 2.5rem; }
}

.result-score.passed { color: var(--success); }
.result-score.failed { color: var(--danger); }
.result-message { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 20px; }

@media (min-width: 768px) {
  .result-message { font-size: 1rem; margin-bottom: 24px; }
}

/* Certificates */
.cert-grid {
  display: grid; grid-template-columns: 1fr;
  gap: 16px; margin-top: 20px;
}

@media (min-width: 640px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

.cert-card { text-align: center; padding: 28px 20px; }

@media (min-width: 768px) {
  .cert-card { padding: 32px 24px; }
}

.cert-card .cert-icon { font-size: 2rem; margin-bottom: 12px; }

@media (min-width: 768px) {
  .cert-card .cert-icon { font-size: 2.5rem; }
}

.cert-card h3 { margin-bottom: 4px; }
.cert-card .cert-date { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 14px; }

@media (min-width: 768px) {
  .cert-card .cert-date { font-size: 0.825rem; }
}

.certificate-view {
  background: var(--bg-surface); border: 2px solid var(--secondary);
  border-radius: var(--radius-lg); padding: 32px 20px;
  text-align: center; position: relative; overflow: hidden;
  max-width: 700px; margin: 32px auto;
}

@media (min-width: 768px) {
  .certificate-view { padding: 48px 36px; margin: 40px auto; }
}

.certificate-view::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
}

.certificate-view h1 {
  font-family: var(--font-heading); font-size: 1.5rem;
  margin-bottom: 8px; color: var(--primary);
}

@media (min-width: 768px) {
  .certificate-view h1 { font-size: 2rem; }
}

.certificate-view .cert-subtitle {
  font-size: 0.8rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 24px;
}

@media (min-width: 768px) {
  .certificate-view .cert-subtitle { font-size: 0.9rem; margin-bottom: 32px; }
}

.certificate-view .cert-name {
  font-family: var(--font-heading); font-size: 1.5rem;
  font-weight: 700; margin-bottom: 20px;
}

@media (min-width: 768px) {
  .certificate-view .cert-name { font-size: 1.8rem; margin-bottom: 24px; }
}

.certificate-view .cert-module {
  font-size: 1rem; color: var(--text-secondary); margin-bottom: 8px;
}

@media (min-width: 768px) {
  .certificate-view .cert-module { font-size: 1.1rem; }
}

.certificate-view .cert-date-issued {
  font-size: 0.8rem; color: var(--text-muted); margin-top: 20px;
}

@media (min-width: 768px) {
  .certificate-view .cert-date-issued { font-size: 0.85rem; margin-top: 24px; }
}

/* Auth Pages */
.auth-container {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 16px;
}

.auth-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 24px; width: 100%; max-width: 420px;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
  .auth-card { padding: 40px; }
}

.auth-logo {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  margin-bottom: 28px;
}

.auth-logo-img {
  width: 48px; height: 48px;
  border-radius: 10px;
  object-fit: cover;
}

@media (min-width: 768px) {
  .auth-logo-img { width: 56px; height: 56px; }
}

.auth-logo-text { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700; color: var(--secondary); }

@media (min-width: 768px) {
  .auth-logo-text { font-size: 1.3rem; }
}

.auth-logo-subtitle { font-size: 0.8rem; color: var(--text-secondary); font-weight: 500; }

@media (min-width: 768px) {
  .auth-logo-subtitle { font-size: 0.85rem; }
}

.auth-card h1 { text-align: center; margin-bottom: 8px; font-size: 1.5rem; }

@media (min-width: 768px) {
  .auth-card h1 { font-size: 1.75rem; }
}

.auth-subtitle { text-align: center; color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 24px; }

@media (min-width: 768px) {
  .auth-subtitle { font-size: 0.9rem; margin-bottom: 28px; }
}

.auth-switch { text-align: center; margin-top: 16px; font-size: 0.85rem; color: var(--text-secondary); }

@media (min-width: 768px) {
  .auth-switch { font-size: 0.875rem; margin-top: 20px; }
}

.auth-switch a { font-weight: 600; }

/* Admin */
.admin-layout { display: grid; grid-template-columns: 1fr; gap: 16px; min-height: calc(100vh - 120px); }

@media (min-width: 768px) {
  .admin-layout { grid-template-columns: 200px 1fr; gap: 24px; }
}

@media (min-width: 1024px) {
  .admin-layout { grid-template-columns: 220px 1fr; }
}

.admin-sidebar {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 12px; height: fit-content;
  position: sticky; top: 80px;
  overflow-x: auto;
}

@media (min-width: 768px) {
  .admin-sidebar { padding: 16px; top: 88px; }
}

.admin-nav { display: flex; gap: 8px; }

@media (min-width: 768px) {
  .admin-nav { flex-direction: column; gap: 4px; }
}

.admin-nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
  cursor: pointer; transition: var(--transition); border: none; background: none;
  font-family: var(--font-body); text-align: left; white-space: nowrap;
}

@media (min-width: 768px) {
  .admin-nav-item { padding: 10px 14px; font-size: 0.875rem; }
}

.admin-nav-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.admin-nav-item.active { background: #FFF5F2; color: var(--primary); font-weight: 600; }

.admin-content { min-width: 0; }

.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .admin-header { margin-bottom: 20px; }
}

.admin-header h2 { font-size: 1.25rem; }

@media (min-width: 768px) {
  .admin-header h2 { font-size: 1.4rem; }
}

.admin-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); overflow: hidden;
  font-size: 0.85rem;
}

@media (min-width: 768px) {
  .admin-table { font-size: 0.9rem; }
}

.admin-table th {
  text-align: left; padding: 10px 12px; font-size: 0.75rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--text-muted); background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

@media (min-width: 768px) {
  .admin-table th { padding: 12px 16px; font-size: 0.775rem; }
}

.admin-table td {
  padding: 12px; font-size: 0.85rem;
  border-bottom: 1px solid var(--border-light);
}

@media (min-width: 768px) {
  .admin-table td { padding: 14px 16px; font-size: 0.9rem; }
}

.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg-elevated); }

.admin-actions { display: flex; gap: 6px; flex-wrap: wrap; }

@media (min-width: 768px) {
  .admin-actions { gap: 8px; }
}

/* Modal */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 200; padding: 16px;
}

.modal {
  background: var(--bg-surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

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

@media (min-width: 768px) {
  .modal-header { padding: 20px 24px; }
}

.modal-header h2 { font-size: 1.1rem; }

@media (min-width: 768px) {
  .modal-header h2 { font-size: 1.15rem; }
}

.modal-close {
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  color: var(--text-muted); padding: 4px; line-height: 1;
}

.modal-body { padding: 20px; }

@media (min-width: 768px) {
  .modal-body { padding: 24px; }
}

.modal-footer {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

@media (min-width: 768px) {
  .modal-footer { padding: 16px 24px; gap: 12px; }
}

/* Toast */
.toast {
  position: fixed; bottom: 16px; left: 16px; right: 16px;
  padding: 12px 20px; border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500;
  box-shadow: var(--shadow-lg); z-index: 300;
  animation: slideUp 0.3s ease;
  text-align: center;
}

@media (min-width: 768px) {
  .toast { bottom: 24px; right: 24px; left: auto; text-align: left; font-size: 0.9rem; }
}

.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--danger); color: white; }
.toast.info { background: var(--primary); color: white; }

/* Empty States */
.empty-state {
  text-align: center; padding: 48px 16px;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .empty-state { padding: 60px 20px; }
}

.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: 12px; }

@media (min-width: 768px) {
  .empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; }
}

.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 0.875rem; max-width: 400px; margin: 0 auto; }

@media (min-width: 768px) {
  .empty-state p { font-size: 0.9rem; }
}

/* Badges */
.badge {
  display: inline-block; padding: 3px 8px; border-radius: 20px;
  font-size: 0.725rem; font-weight: 600;
}

@media (min-width: 768px) {
  .badge { padding: 3px 10px; font-size: 0.75rem; }
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: #FFF5F2; color: var(--primary); }

/* Asset Cards */
.asset-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 640px) {
  .asset-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (min-width: 1024px) {
  .asset-grid { grid-template-columns: repeat(3, 1fr); }
}

.asset-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

@media (min-width: 768px) {
  .asset-card { gap: 12px; padding: 14px; }
}

.asset-card:hover { border-color: var(--primary); background: var(--bg-surface); }

.asset-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .asset-icon { width: 40px; height: 40px; font-size: 1.3rem; }
}

.asset-info { flex: 1; min-width: 0; }
.asset-info h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 768px) {
  .asset-info h4 { font-size: 0.9rem; }
}

/* Utility */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-sm { font-size: 0.85rem; }
.text-muted { color: var(--text-secondary); }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; } .flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; }

.page-header { margin-bottom: 8px; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }

@media (min-width: 768px) {
  .page-subtitle { font-size: 0.95rem; }
}

.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.825rem; font-weight: 500; color: var(--text-secondary);
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .back-link { font-size: 0.85rem; margin-bottom: 20px; }
}

.back-link:hover { color: var(--primary); }

/* Animations */
@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-content > * { animation: fadeIn 0.3s ease; }

/* Print styles for certificates */
@media print {
  .navbar, .back-link, .btn { display: none !important; }
  .certificate-view { border: 2px solid var(--secondary); }
}