:root {
  --bg: #0e1621;
  --bg-alt: #111820;
  --card: #1a2332;
  --card-hover: #1e293e;
  --border: #243040;
  --text: #f0ede6;
  --text-muted: #8a9bb0;
  --text-sub: #5a6b80;
  --input-bg: #0e1621;
  --shadow: rgba(0, 0, 0, 0.5);
  --overlay: rgba(0, 0, 0, 0.7);
  --green: #006400;
  --green-light: #2e7d32;
  --green-glow: rgba(0, 100, 0, 0.2);
  --yellow: #ffd200;
  --yellow-deep: #f9a825;
  --red: #de2010;
  --blue: #1565c0;
  --gold: #d4a800;
  --font-body: "DM Sans", sans-serif;
  --font-display: "Playfair Display", serif;
  --font-mono: "Space Mono", monospace;
}

body[data-theme="light"] {
  --bg: #f4f6f8;
  --bg-alt: #eaeef2;
  --card: #ffffff;
  --card-hover: #f8fafc;
  --border: #d4dce8;
  --text: #1a2332;
  --text-muted: #5a6b80;
  --text-sub: #8a9bb0;
  --input-bg: #ffffff;
  --shadow: rgba(0, 0, 0, 0.12);
  --overlay: rgba(0, 0, 0, 0.5);
  --green: #006400;
  --green-light: #2e7d32;
  --green-glow: rgba(0, 100, 0, 0.1);
  --yellow: #d4a800;
  --yellow-deep: #b8920a;
  --red: #c41e0e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.app-root {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  transition: background 0.3s ease, color 0.3s ease;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(255, 210, 0, 0.14), transparent 28%),
    linear-gradient(135deg, var(--bg) 0%, color-mix(in srgb, var(--green) 18%, var(--bg)) 50%, color-mix(in srgb, var(--red) 12%, var(--bg)) 100%);
}

.auth-card,
.panel,
.module-card,
.quiz-card,
.cert-card,
.payment-card,
.certificate {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px var(--shadow);
}

.auth-card {
  width: min(440px, 100%);
  border-radius: 20px;
  padding: 44px 40px;
}

.brand-row,
.brand-box {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 24px;
}

.brand-copy h1,
.page-title,
.section-title,
.certificate-name {
  font-family: var(--font-display);
}

.brand-copy-title {
  font-weight: 800;
  letter-spacing: 1px;
  font-size: 18px;
}

.brand-copy-sub {
  color: var(--text-muted);
  font-size: 11px;
}

.flag-bar {
  display: flex;
  overflow: hidden;
  border-radius: 6px;
}

.flag-bar span {
  flex: 1;
}

.flag-green { background: #006400; }
.flag-yellow { background: #ffd200; }
.flag-red { background: #de2010; }
.flag-black { background: #111111; }

.auth-title {
  margin: 28px 0 6px;
  font-size: 28px;
  font-weight: 800;
}

.auth-subtitle,
.muted,
.small,
.panel-copy,
.meta,
.list-copy,
.topic-copy,
.cert-copy,
.footnote {
  color: var(--text-muted);
}

.message {
  border-radius: 10px;
  padding: 10px 14px;
  margin: 0 0 16px;
  font-size: 13px;
}

.message.error {
  background: color-mix(in srgb, var(--red) 10%, transparent);
  border: 1px solid var(--red);
  color: var(--red);
}

.message.success {
  background: color-mix(in srgb, var(--green) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 60%, var(--border));
  color: var(--green);
}

.input,
.session-input {
  width: 100%;
  background: var(--input-bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input {
  margin-bottom: 14px;
}

.input:focus,
.session-input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.btn,
.ghost-btn,
.chip-btn,
.icon-btn {
  border: 0;
  transition: transform 0.2s ease, filter 0.2s ease, background 0.2s ease;
}

.btn:hover,
.ghost-btn:hover,
.chip-btn:hover,
.icon-btn:hover {
  transform: translateY(-1px);
}

.btn {
  border-radius: 12px;
  padding: 14px 22px;
  font-weight: 700;
}

.btn:disabled,
.link-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--green);
  color: #fff;
}

.btn-gold {
  background: linear-gradient(135deg, #d4a800, #f5c842);
  color: #000;
}

.btn-blue {
  background: var(--blue);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-full {
  width: 100%;
}

.switch-row {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
}

.auth-actions-secondary {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.auth-progress {
  margin: 0 0 16px;
}

.switch-row button {
  background: none;
  border: 0;
  color: var(--yellow);
  font-weight: 700;
  padding: 0;
}

.link-btn {
  justify-self: start;
  background: none;
  border: 0;
  padding: 0;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 700;
}

.google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.reset-panel {
  margin-top: 16px;
  padding: 16px;
  border-radius: 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}

.demo-box,
.tip-box,
.video-panel,
.payment-note,
.session-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.demo-box {
  margin-top: 20px;
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.8;
}

.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  max-width: 360px;
  padding: 14px 22px;
  border-radius: 12px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 32px var(--shadow);
  z-index: 9999;
  animation: toast-in 0.3s ease;
}

.toast.success { background: var(--green); }
.toast.error { background: var(--red); }

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 272px;
  background: var(--card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s ease;
}

.sidebar-header,
.topbar,
.topbar-right,
.dashboard-head,
.stats-grid,
.module-header,
.option-row,
.summary-row,
.certificate-actions,
.card-top,
.session-row {
  display: flex;
  align-items: center;
}

.sidebar-header {
  gap: 10px;
  padding: 22px 18px 14px;
}

.sidebar-copy {
  flex: 1;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 8px;
  color: var(--text-muted);
}

.progress-strip {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 11px;
}

.progress-value {
  color: var(--yellow);
  font-weight: 700;
}

.progress-track {
  height: 6px;
  background: var(--bg-alt);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--green), var(--yellow));
  transition: width 0.6s ease;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-alt);
}

.nav-item.locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.nav-title {
  flex: 1;
  line-height: 1.3;
}

.session-box {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}

.session-label,
.eyebrow {
  font-family: var(--font-mono);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.session-label {
  color: var(--yellow);
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 8px;
}

.session-row {
  gap: 6px;
}

.session-input {
  padding: 8px 10px;
  font-size: 11px;
}

.chip-btn {
  background: var(--green);
  color: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 700;
}

.session-feedback {
  font-size: 10px;
  margin-top: 6px;
  line-height: 1.4;
}

.session-feedback.success { color: #4caf50; }
.session-feedback.error { color: var(--red); }

.main-shell {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  gap: 12px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  position: sticky;
  top: 0;
  z-index: 50;
}

.menu-btn {
  display: none;
  background: none;
  color: var(--text-muted);
  font-size: 20px;
  padding: 0;
}

.topbar-right {
  gap: 12px;
  margin-left: auto;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.page {
  padding: 32px 36px;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.dashboard-head {
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.page-title {
  font-size: 26px;
  margin: 0 0 6px;
}

.stats-grid,
.cards-grid,
.key-points,
.choice-grid,
.topics-grid,
.certificate-stats {
  gap: 16px;
}

.stats-grid,
.cards-grid,
.choice-grid,
.topics-grid {
  display: grid;
}

.stats-grid {
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  margin-bottom: 32px;
}

.stat-card,
.module-card,
.panel {
  border-radius: 16px;
  padding: 18px 22px;
}

.stat-card {
  text-align: center;
}

.stat-emoji {
  font-size: 22px;
}

.stat-value {
  font-size: 26px;
  font-weight: 800;
  margin: 6px 0 4px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 11px;
}

.eyebrow {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cards-grid {
  grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
  margin-bottom: 28px;
  gap: 18px;
}

.module-card {
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  user-select: none;
}

.module-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 42px var(--shadow);
}

.module-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
}

.card-top {
  gap: 10px;
  margin-bottom: 14px;
}

.module-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.module-meta {
  flex: 1;
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge {
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 10px;
  white-space: nowrap;
}

.badge.success {
  background: color-mix(in srgb, var(--green) 14%, transparent);
  border: 1px solid var(--green);
  color: #4caf50;
}

.badge.warn {
  background: color-mix(in srgb, var(--yellow) 16%, transparent);
  color: var(--yellow);
}

.module-name {
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
  line-height: 1.3;
}

.module-subtitle {
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 14px;
}

.summary-row {
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-sub);
  gap: 12px;
}

.panel {
  font-size: 13px;
}

.module-page {
  max-width: 900px;
}

.back-row {
  margin-bottom: 24px;
}

.module-header {
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.module-large-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 26px;
  color: #fff;
  flex-shrink: 0;
}

.section-title {
  margin: 0;
  font-size: 22px;
}

.module-tags,
.video-head,
.quiz-cta,
.quiz-head,
.result-actions,
.payment-meta {
  display: flex;
  align-items: center;
}

.module-tags,
.certificate-actions,
.payment-meta {
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.key-points {
  display: grid;
}

.key-point {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-muted);
}

.key-point + .key-point {
  border-top: 1px solid var(--border);
}

.point-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.video-head {
  justify-content: space-between;
  margin-bottom: 14px;
}

.video-title {
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 10px;
  font-style: italic;
}

.video-frame {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 14px;
  background: #000;
  margin-bottom: 14px;
  box-shadow: 0 8px 32px var(--shadow);
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-panel {
  padding: 14px 18px;
}

.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.quiz-cta {
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border-radius: 16px;
  padding: 24px 28px;
  border: 1px solid color-mix(in srgb, var(--green) 30%, transparent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--green) 12%, transparent), var(--bg-alt));
}

.quiz-shell,
.choice-shell,
.payment-shell,
.certificate-page {
  min-height: 100vh;
}

.quiz-shell,
.choice-shell,
.payment-shell {
  display: grid;
  place-items: center;
  padding: 24px;
}

.quiz-card {
  width: min(720px, 100%);
  border-radius: 24px;
  padding: 36px;
}

.quiz-head {
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.quiz-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.quiz-progress {
  height: 5px;
  background: var(--bg-alt);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 36px;
}

.quiz-progress-fill {
  height: 100%;
  transition: width 0.4s ease;
}

.question-copy {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 30px;
}

.options-list {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.option-row {
  gap: 14px;
  border-radius: 14px;
  padding: 16px 18px;
  border: 1.5px solid var(--border);
  background: var(--bg-alt);
  color: var(--text-muted);
}

.option-row.selected {
  color: var(--text);
}

.option-tag {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.quiz-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.result-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.result-card {
  width: min(500px, 100%);
  text-align: center;
  border-radius: 24px;
  padding: 52px 44px;
}

.result-icon {
  font-size: 72px;
  margin-bottom: 20px;
}

.score-ring {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 5px solid;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
}

.score-value {
  font-size: 40px;
  font-weight: 800;
}

.result-actions {
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.choice-shell,
.payment-shell {
  padding: 28px;
}

.choice-wrap,
.payment-card,
.certificate-wrap {
  width: min(900px, 100%);
}

.choice-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.cert-card {
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.premium-card {
  background: linear-gradient(135deg, #1a1000 0%, #2a1a00 100%);
  border: 2px solid #d4a800;
  color: #f5e6b2;
  position: relative;
  overflow: hidden;
}

.premium-pill {
  position: absolute;
  top: 16px;
  right: 16px;
  background: #d4a800;
  color: #000;
  border-radius: 20px;
  padding: 4px 10px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
}

.feature-list {
  margin: 0 0 20px;
  padding-left: 18px;
  line-height: 2.1;
  font-size: 13px;
  flex: 1;
}

.gold-note {
  background: rgba(212, 168, 0, 0.1);
  border: 1px solid rgba(212, 168, 0, 0.2);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 12px;
  color: #c4a860;
}

.payment-card {
  background: linear-gradient(135deg, #1a1000, #2a1a00);
  border: 2px solid #d4a800;
  border-radius: 24px;
  padding: 44px 40px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
}

.gold-text { color: #d4a800; }
.gold-soft { color: #c4a860; }
.gold-muted { color: #8a7040; }
.gold-bright { color: #f5e6b2; }

.why-grid {
  background: rgba(212, 168, 0, 0.08);
  border: 1px solid rgba(212, 168, 0, 0.2);
  border-radius: 14px;
  padding: 20px 22px;
  margin-bottom: 28px;
}

.why-item {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.price-card {
  text-align: center;
  margin-bottom: 24px;
  padding: 18px;
  background: rgba(212, 168, 0, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(212, 168, 0, 0.26);
}

.payment-note {
  text-align: center;
  margin-bottom: 20px;
  padding: 12px 16px;
}

.payment-coupon-input {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(212, 168, 0, 0.26);
  color: #fff;
}

.payment-coupon-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.coupon-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.coupon-valid {
  color: #f5e6b2;
}

.coupon-invalid {
  color: #ffb3a6;
}

.confirm-block {
  border-top: 1px solid rgba(212, 168, 0, 0.2);
  padding-top: 20px;
  text-align: center;
}

.confirm-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
}

.certificate-page {
  padding: 28px 24px 60px;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.certificate-page.premium {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a0d00 50%, #0a0a0a 100%);
}

.certificate-actions {
  justify-content: space-between;
  margin: 0 auto 28px;
}

.certificate {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  color: #1a2332;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.certificate.premium {
  background: #fffdf5;
  border: 4px double #d4a800;
}

.certificate-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
  font-size: 120px;
  opacity: 0.03;
  color: #d4a800;
  font-weight: 900;
  pointer-events: none;
  z-index: 0;
  user-select: none;
}

.certificate-body {
  position: relative;
  padding: 52px 68px 44px;
  z-index: 1;
}

.certificate-corner {
  position: absolute;
  font-size: 24px;
  color: rgba(212, 168, 0, 0.33);
}

.corner-top-left { top: 20px; left: 20px; }
.corner-top-right { top: 20px; right: 20px; }
.corner-bottom-left { bottom: 20px; left: 20px; }
.corner-bottom-right { bottom: 20px; right: 20px; }

.certificate-brand {
  text-align: center;
  margin-bottom: 36px;
}

.certificate-brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 28px;
}

.certificate-brand-icon {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 30px;
  font-weight: 900;
}

.certificate-line {
  height: 2px;
  margin: 0 auto 28px;
  max-width: 700px;
  background: linear-gradient(90deg, transparent, var(--accent), #ffd200, #de2010, var(--accent), transparent);
}

.certificate-label {
  font-size: 12px;
  letter-spacing: 6px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  text-transform: uppercase;
  font-family: var(--font-body);
}

.certificate-name {
  font-size: 48px;
  font-style: italic;
  line-height: 1.2;
  margin-bottom: 8px;
}

.certificate-org {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--accent);
}

.certificate-course {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.certificate-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  margin: 28px 0;
  padding: 22px 0;
}

.certificate-stat {
  text-align: center;
}

.certificate-stat + .certificate-stat {
  border-left: 1px solid #eee;
}

.certificate-stat-value {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 4px;
}

.certificate-stat-label {
  font-size: 11px;
  color: #888;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.topics-grid {
  grid-template-columns: repeat(auto-fill, minmax(195px, 1fr));
  gap: 7px;
}

.topic-pill {
  font-size: 11px;
  color: #555;
  padding: 6px 10px;
  border-radius: 6px;
  border-left: 3px solid var(--accent);
  background: #f8f8f5;
}

.certificate.premium .topic-pill {
  background: #fff8e7;
}

.signatures {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 36px;
}

.signature {
  text-align: center;
  flex: 1;
}

.signature-line {
  height: 2px;
  background: #1a2332;
  max-width: 180px;
  margin: 0 auto 8px;
}

.seal {
  text-align: center;
  flex: 0.6;
}

.certificate-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid #eee;
  font-size: 10px;
  color: #aaa;
}

.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 90;
}

.share-sheet {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(520px, calc(100vw - 32px));
  z-index: 110;
  padding: 24px;
  border-radius: 20px;
}

.share-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.print-only {
  display: none;
}

code {
  font-family: var(--font-mono);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(-12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .page,
  .module-page {
    padding: 24px 18px;
  }

  .choice-grid,
  .certificate-stats {
    grid-template-columns: 1fr;
  }

  .share-grid {
    grid-template-columns: 1fr;
  }

  .coupon-row {
    grid-template-columns: 1fr;
  }

  .certificate-stat + .certificate-stat {
    border-left: 0;
    border-top: 1px solid #eee;
    padding-top: 16px;
    margin-top: 16px;
  }

  .certificate-body {
    padding: 36px 24px;
  }

  .signatures {
    flex-direction: column;
    gap: 24px;
    align-items: stretch;
  }
}

@media (max-width: 680px) {
  .auth-card,
  .quiz-card,
  .result-card,
  .payment-card,
  .cert-card {
    padding: 28px 22px;
  }

  .topbar {
    padding: 14px 16px;
  }

  .topbar-right {
    gap: 8px;
  }

  .quiz-footer,
  .certificate-actions,
  .dashboard-head,
  .video-meta {
    flex-direction: column;
    align-items: stretch;
  }

  .certificate-name {
    font-size: 34px;
  }

  .certificate-course {
    font-size: 20px;
  }

  .question-copy {
    font-size: 18px;
  }
}

@media print {
  body {
    background: #fff !important;
  }

  body > * {
    display: none !important;
  }

  #app {
    display: block !important;
  }

  #app .app-root > * {
    display: none !important;
  }

  .print-only {
    display: block !important;
  }

  #app .print-only,
  .certificate-page,
  .certificate-wrap,
  .certificate {
    display: block !important;
    background: #fff !important;
    box-shadow: none !important;
  }

  .certificate-page {
    padding: 0 !important;
  }

  @page {
    margin: 0;
  }
}

.sidebar-profile {
  margin: 16px;
  padding: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.sidebar-section-title {
  padding: 0 16px;
  margin: 16px 0 10px;
  color: var(--text-sub);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.sidebar-stack {
  display: grid;
  gap: 8px;
  padding: 0 16px;
}

.sidebar-tab,
.sidebar-course-btn {
  width: 100%;
  text-align: left;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 12px;
  padding: 12px 14px;
}

.sidebar-tab.active,
.sidebar-course-btn.active {
  background: color-mix(in srgb, var(--green) 16%, var(--bg-alt));
  border-color: color-mix(in srgb, var(--green) 50%, var(--border));
  color: var(--text);
}

.sidebar-empty {
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.6;
}

.tier-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.tier-pill.free {
  background: color-mix(in srgb, var(--yellow) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--yellow) 45%, var(--border));
  color: var(--yellow);
}

.tier-pill.premium {
  background: rgba(212, 168, 0, 0.14);
  border: 1px solid rgba(212, 168, 0, 0.44);
  color: #d4a800;
}

.tier-pill.enterprise {
  background: rgba(21, 101, 192, 0.14);
  border: 1px solid rgba(21, 101, 192, 0.4);
  color: #7ec2ff;
}

.hero-panel,
.upgrade-strip,
.course-hub-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.hero-panel {
  padding: 28px;
  border-radius: 20px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--yellow) 18%, transparent), transparent 28%),
    linear-gradient(135deg, color-mix(in srgb, var(--green) 16%, var(--card)), var(--card));
  border: 1px solid color-mix(in srgb, var(--green) 25%, var(--border));
  margin-bottom: 24px;
}

.hero-lead {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.dashboard-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.tab-btn {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.tab-btn.active {
  background: color-mix(in srgb, var(--green) 18%, var(--bg-alt));
  border-color: color-mix(in srgb, var(--green) 55%, var(--border));
  color: var(--text);
}

.section-stack {
  display: grid;
  gap: 28px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.catalog-controls {
  padding: 22px 24px;
}

.filter-row {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.search-input,
.select-input {
  width: 100%;
  background: var(--input-bg);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 13px 16px;
  color: var(--text);
  outline: none;
}

.select-input {
  appearance: none;
}

.search-input:focus,
.select-input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.catalog-card,
.manage-card,
.certificate-card-panel {
  display: flex;
  flex-direction: column;
}

.catalog-card.locked {
  opacity: 0.78;
}

.catalog-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 700;
}

.pill-level {
  background: rgba(45, 122, 79, 0.14);
  color: #2d7a4f;
}

.pill-sector {
  background: rgba(122, 59, 30, 0.12);
  color: #975f00;
}

.pill-free {
  background: rgba(45, 122, 79, 0.18);
  color: #2d7a4f;
}

.pill-premium {
  background: rgba(212, 168, 0, 0.18);
  color: #d4a800;
}

.pill-access {
  background: rgba(21, 101, 192, 0.14);
  color: #1565c0;
}

.pill-featured {
  background: rgba(122, 59, 30, 0.15);
  color: #7a3b1e;
}

.course-stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
}

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

.progress-mini {
  display: grid;
  gap: 8px;
}

.empty-state {
  display: grid;
  gap: 12px;
  place-items: center;
  text-align: center;
  padding: 44px 24px;
}

.upgrade-strip {
  padding: 22px 24px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(212, 168, 0, 0.14), rgba(212, 168, 0, 0.05));
  border: 1px solid rgba(212, 168, 0, 0.28);
}

.identity-strip {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 22px 24px;
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(21, 101, 192, 0.14), transparent 26%),
    linear-gradient(135deg, color-mix(in srgb, var(--green) 12%, var(--card)), var(--card));
  border: 1px solid color-mix(in srgb, var(--green) 22%, var(--border));
}

.identity-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}

.identity-copy {
  max-width: 640px;
  margin-top: 8px;
  line-height: 1.7;
}

.identity-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 14px;
  min-width: min(100%, 520px);
}

.identity-meta > div {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border);
}

.identity-meta-value {
  margin-top: 8px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
  word-break: break-word;
}

.course-hub-hero {
  padding: 28px;
  border-radius: 20px;
}

.certificate-card-panel {
  padding: 22px;
}

.profile-panel {
  padding: 24px;
}

.profile-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.2fr);
  gap: 24px;
}

.profile-info-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}

.upgrade-request-box {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(212, 168, 0, 0.12);
  border: 1px solid rgba(212, 168, 0, 0.3);
  color: var(--text);
  font-size: 12px;
  line-height: 1.6;
}

.btn-disabled {
  background: var(--bg-alt);
  border-color: var(--border);
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .filter-row {
    grid-template-columns: 1fr 1fr;
  }

  .identity-meta {
    grid-template-columns: 1fr;
    min-width: 100%;
  }

  .profile-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .filter-row {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .upgrade-strip,
  .course-hub-hero,
  .course-actions,
  .hero-actions {
    align-items: stretch;
  }

  .dashboard-tabs {
    overflow-x: auto;
    padding-bottom: 4px;
  }
}