/** ================================================================
    Jarvis Academy — Unified Course & Lesson Design System
    ================================================================ */

/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --academy-primary: #1e293b;
  --academy-primary-light: #334155;
  --academy-accent: #2563eb;
  --academy-accent-hover: #1d4ed8;
  --academy-success: #16a34a;
  --academy-warning: #d97706;
  --academy-danger: #dc2626;
  --academy-purple: #7c3aed;
  --academy-bg: #f1f5f9;
  --academy-card: #ffffff;
  --academy-text: #0f172a;
  --academy-text-light: #334155;
  --academy-text-muted: #475569;
  --academy-border: #cbd5e1;
  --academy-radius: 12px;
  --academy-shadow: 0 1px 3px rgba(15,23,42,0.12);
  --academy-shadow-hover: 0 8px 24px rgba(15,23,42,0.18);
  --academy-shadow-card: 0 4px 16px rgba(15,23,42,0.10);
  --font-base: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ── Layout Base ───────────────────────────────────────────────── */
.jarvis-academy {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 28px;
  font-family: var(--font-base);
  color: var(--academy-primary);
  line-height: 1.65;
  background: var(--academy-bg);
  border-radius: 16px;
}

/* ── Landing Page ──────────────────────────────────────────────── */
.academy-hero {
  text-align: center;
  padding: 56px 28px 48px;
  background: linear-gradient(135deg, var(--academy-primary) 0%, var(--academy-primary-light) 100%);
  border-radius: var(--academy-radius);
  color: #fff;
  margin-bottom: 36px;
  box-shadow: var(--academy-shadow-card);
}
.academy-hero h1 {
  font-size: 2.4rem;
  margin: 0 0 16px;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
}
.academy-hero .lead {
  font-size: 1.15rem;
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
  color: #e2e8f0;
  line-height: 1.6;
}

.academy-body {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.academy-filters {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 10px 20px;
  border-radius: 24px;
  background: #fff;
  color: var(--academy-primary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--academy-border);
  transition: all 0.2s;
  box-shadow: var(--academy-shadow);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--academy-primary);
  color: #fff;
  border-color: var(--academy-primary);
}

.academy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* ── Course Card ───────────────────────────────────────────────── */
.course-card {
  background: var(--academy-card);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s, transform 0.2s;
  box-shadow: var(--academy-shadow-card);
}
.course-card:hover {
  box-shadow: var(--academy-shadow-hover);
  transform: translateY(-3px);
}
.course-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  background: var(--academy-bg);
}
.course-card-image-placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, #dbeafe 0%, #e0e7ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.course-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-card-badges {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.badge-level-beginner { background: #dcfce7; color: #14532d; }
.badge-level-intermediate { background: #fef9c3; color: #713f12; }
.badge-level-advanced { background: #fee2e2; color: #7f1d1d; }
.badge-audience-teen { background: #e0e7ff; color: #312e81; }
.badge-free { background: var(--academy-success); color: #fff; }
.badge-paid { background: var(--academy-primary); color: #fff; }

.course-card-body h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}
.course-card-body h3 a {
  color: var(--academy-primary);
  text-decoration: none;
}
.course-card-body h3 a:hover {
  color: var(--academy-accent);
}
.course-card-body p {
  color: var(--academy-text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0 0 14px;
  flex: 1;
}
.course-card-meta {
  display: flex;
  gap: 14px;
  font-size: 0.85rem;
  color: var(--academy-text-muted);
  margin-bottom: 10px;
}
.course-card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}
.course-card-price {
  font-weight: 700;
  color: var(--academy-primary);
  font-size: 1rem;
}
.course-card-price.free {
  color: var(--academy-success);
}
.progress-mini {
  height: 6px;
  background: #e2e8f0;
  border-radius: 3px;
  overflow: hidden;
  margin-top: 10px;
}
.progress-mini .bar {
  height: 100%;
  background: var(--academy-success);
  border-radius: 3px;
  transition: width 0.4s;
}
.progress-label {
  color: var(--academy-text-muted);
  font-size: 0.85rem;
  display: block;
  margin-top: 4px;
}
.course-card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--academy-border);
  background: #f8fafc;
}
.empty-courses-msg {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--academy-text-muted);
  padding: 48px 24px;
  font-size: 1.05rem;
}

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.1s;
  text-align: center;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--academy-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--academy-primary-light); }
.btn-accent {
  background: var(--academy-accent);
  color: #fff;
}
.btn-accent:hover { background: var(--academy-accent-hover); }
.btn-outline {
  background: transparent;
  color: var(--academy-primary);
  border: 2px solid var(--academy-primary);
}
.btn-outline:hover { background: var(--academy-primary); color: #fff; }
.btn-secondary {
  background: #6c757d;
  color: #fff;
}
.btn-block { display: block; width: 100%; }

/* ── Course Detail ─────────────────────────────────────────────── */
.course-detail {
  background: var(--academy-card);
  border-radius: var(--academy-radius);
  overflow: hidden;
  box-shadow: var(--academy-shadow);
}
.course-header {
  position: relative;
  padding: 0;
}
.course-header-image {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}
.course-header-overlay {
  padding: 28px 32px 20px;
}
.course-header-badges {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.course-header h1 {
  font-size: 1.9rem;
  margin: 0 0 10px;
  line-height: 1.25;
}
.course-meta {
  display: flex;
  gap: 18px;
  color: var(--academy-text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.course-description {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--academy-text-light);
  max-width: 720px;
}

/* Purchase box */
.purchase-box {
  background: linear-gradient(135deg, #f8f9fa 0%, #eef2f7 100%);
  border-top: 1px solid var(--academy-border);
  padding: 28px 32px;
  text-align: center;
}
.purchase-box .price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--academy-primary);
  margin-bottom: 16px;
}
.voucher-box {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  justify-content: center;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}
.voucher-box input {
  padding: 10px 14px;
  border: 1px solid #ced4da;
  border-radius: 8px;
  flex: 1;
  font-size: 0.95rem;
}

/* Lessons list */
.lessons-list {
  padding: 24px 32px 32px;
}
.lessons-list h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--academy-border);
}
.lesson-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--academy-border);
  border-radius: 10px;
  margin-bottom: 10px;
  text-decoration: none;
  color: var(--academy-primary);
  background: #fff;
  transition: background 0.15s, border-color 0.15s;
}
.lesson-row:hover {
  background: #f8f9fa;
  border-color: var(--academy-accent);
}
.lesson-row.completed {
  border-left: 4px solid var(--academy-success);
}
.lesson-num {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--academy-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.lesson-row.completed .lesson-num {
  background: var(--academy-success);
}
.lesson-title { flex: 1; font-weight: 500; }
.lesson-duration { color: var(--academy-text-light); font-size: 0.85rem; }
.check { color: var(--academy-success); font-weight: 700; font-size: 1.1rem; }

/* ── Lesson Page Layout ────────────────────────────────────────── */
.lesson-page {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.lesson-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--academy-card);
  border-radius: var(--academy-radius);
  border: 1px solid var(--academy-border);
  padding: 20px;
  box-shadow: var(--academy-shadow);
  position: sticky;
  top: 20px;
}
.lesson-sidebar .back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
  color: var(--academy-accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}
.lesson-sidebar .back-link:hover {
  text-decoration: underline;
}
.lesson-sidebar h3 {
  font-size: 0.95rem;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--academy-border);
}
.lesson-nav { display: flex; flex-direction: column; gap: 4px; }
.lesson-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--academy-primary);
  font-size: 0.88rem;
  transition: background 0.15s;
}
.lesson-nav a:hover,
.lesson-nav a.active {
  background: #eef2f7;
}
.lesson-nav a.completed { color: var(--academy-success); }
.lesson-nav a .num {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e9ecef;
  border-radius: 50%;
  font-size: 0.7rem;
  flex-shrink: 0;
  font-weight: 700;
}
.lesson-nav a.active .num { background: var(--academy-accent); color: #fff; }
.lesson-nav a.completed .num { background: var(--academy-success); color: #fff; }

.lesson-content {
  flex: 1;
  min-width: 0;
  background: var(--academy-card);
  border-radius: var(--academy-radius);
  border: 1px solid var(--academy-border);
  padding: 32px;
  box-shadow: var(--academy-shadow);
}
.lesson-content h1 {
  font-size: 1.7rem;
  margin-bottom: 20px;
  line-height: 1.3;
}
.lesson-content h2 {
  font-size: 1.3rem;
  margin: 28px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--academy-border);
}
.lesson-content h3 {
  font-size: 1.1rem;
  margin: 22px 0 10px;
}
.lesson-content h4 {
  font-size: 1rem;
  margin: 16px 0 8px;
}
.lesson-content p {
  margin-bottom: 14px;
}
.lesson-content ul,
.lesson-content ol {
  margin-bottom: 16px;
  padding-left: 22px;
}
.lesson-content li {
  margin-bottom: 6px;
}
.lesson-content a {
  color: var(--academy-accent);
  text-decoration: underline;
}
.lesson-content a:hover {
  color: var(--academy-accent-hover);
}

/* ── Content Components ────────────────────────────────────────── */
.lesson-hero-img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: var(--academy-shadow);
}

.lesson-intro {
  background: #f0f7ff;
  border-left: 4px solid var(--academy-accent);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.tip-box {
  background: #e8f6f3;
  border: 1px solid #a3e4d7;
  border-radius: 10px;
  padding: 18px 20px;
  margin: 20px 0;
}
.tip-title {
  font-weight: 700;
  color: #117a65;
  margin: 0 0 8px;
  font-size: 1rem;
}
.tip-box p { margin-bottom: 8px; }
.tip-box p:last-child { margin-bottom: 0; }

.warning-box {
  background: #fdf2e9;
  border: 1px solid #f5cba7;
  border-radius: 10px;
  padding: 18px 20px;
  margin: 20px 0;
}
.warning-title {
  font-weight: 700;
  color: #a04000;
  margin: 0 0 8px;
  font-size: 1rem;
}
.warning-box p { margin-bottom: 8px; }
.warning-box p:last-child { margin-bottom: 0; }

.exercise-box {
  background: #eaf2f8;
  border: 1px solid #aed6f1;
  border-radius: 10px;
  padding: 22px 24px;
  margin: 24px 0;
}
.exercise-box strong {
  color: var(--academy-primary);
}
.exercise-box ol,
.exercise-box ul {
  margin-top: 10px;
}

.summary-box {
  background: #f5f6f7;
  border-radius: 10px;
  padding: 20px 24px;
  margin: 24px 0;
}
.summary-box ul {
  margin: 0;
}
.summary-box li {
  margin-bottom: 8px;
}
.summary-box li:last-child {
  margin-bottom: 0;
}

.compare-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}
.bad-example,
.good-example {
  padding: 16px;
  border-radius: 10px;
}
.bad-example {
  background: #fdedec;
  border: 1px solid #f5b7b1;
}
.good-example {
  background: #e9f7ef;
  border: 1px solid #a9dfbf;
}
.bad-example h4,
.good-example h4 {
  margin-top: 0;
  font-size: 0.95rem;
}
.bad-example blockquote,
.good-example blockquote {
  background: rgba(255,255,255,0.6);
  padding: 12px;
  border-radius: 6px;
  margin: 10px 0;
  font-style: italic;
  border-left: 3px solid var(--academy-border);
}

.pillar-box {
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 12px 0;
}
.pillar-box h4 {
  margin-top: 0;
  color: var(--academy-primary);
}
.pillar-box blockquote {
  background: #f8f9fa;
  padding: 10px 14px;
  border-radius: 6px;
  margin: 8px 0 0;
  font-style: italic;
}

.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}
.can-do, .cant-do {
  padding: 16px;
  border-radius: 10px;
}
.can-do {
  background: #e9f7ef;
  border: 1px solid #a9dfbf;
}
.cant-do {
  background: #fdedec;
  border: 1px solid #f5b7b1;
}
.can-do h4, .cant-do h4 {
  margin-top: 0;
}
.can-do ul, .cant-do ul {
  margin-bottom: 0;
}

.code-block {
  background: #f4f6f7;
  border: 1px solid #d5dbdb;
  border-radius: 10px;
  padding: 18px 20px;
  margin: 16px 0;
}
.code-block blockquote {
  margin: 0;
  padding: 10px 14px;
  background: #fff;
  border-radius: 6px;
  border-left: 3px solid var(--academy-accent);
  font-style: italic;
}
.code-block p {
  margin-bottom: 10px;
}
.code-block p:last-child {
  margin-bottom: 0;
}

.follow-up-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0;
}
.follow-up-box blockquote {
  background: #f8f9fa;
  padding: 12px 16px;
  border-radius: 8px;
  margin: 0;
  border-left: 3px solid var(--academy-purple);
  font-style: italic;
}

.interface-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 16px 0;
}
.ui-element {
  background: #f8f9fa;
  border: 1px solid var(--academy-border);
  border-radius: 10px;
  padding: 14px 16px;
}
.ui-element h4 {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: 0.95rem;
}
.ui-element p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--academy-text-light);
}

.steps {
  padding-left: 20px;
  margin: 16px 0;
}
.steps li {
  margin-bottom: 12px;
  padding-left: 4px;
}

.academy-intro {
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.learning-objectives {
  background: #f0f7ff;
  border-radius: 10px;
  padding: 20px 24px;
  margin: 20px 0;
}
.learning-objectives h3 {
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--academy-primary);
}
.learning-objectives ul {
  margin: 0;
}
.course-info-box {
  background: var(--academy-primary);
  color: #fff;
  border-radius: 10px;
  padding: 18px 22px;
  margin: 20px 0;
}
.course-info-box strong {
  color: #aed6f1;
}

/* Video wrapper */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 10px;
  background: #000;
  margin-bottom: 24px;
}
.video-wrapper iframe,
.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Audio wrapper */
.audio-wrapper {
  background: #f1f5f9;
  border: 1px solid var(--academy-border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.audio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--academy-primary);
}
.audio-icon {
  font-size: 1.2rem;
}
.audio-player {
  width: 100%;
  height: 40px;
  border-radius: 6px;
}

/* Attachments */
.lesson-attachments {
  margin-top: 28px;
  padding: 18px 20px;
  background: #f8f9fa;
  border-radius: 10px;
  border: 1px solid var(--academy-border);
}
.lesson-attachments h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.05rem;
}
.lesson-attachments ul {
  margin: 0;
  padding-left: 18px;
}
.lesson-attachments li {
  margin-bottom: 6px;
}
.lesson-attachments a {
  color: var(--academy-accent);
  font-weight: 500;
}

/* Lesson actions */
.lesson-actions {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 2px solid var(--academy-border);
}

/* ── SEO Content ───────────────────────────────────────────────── */
.academy-seo-content {
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 36px;
  box-shadow: var(--academy-shadow-card);
}
.academy-seo-content h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e2e8f0;
  color: var(--academy-primary);
  font-weight: 700;
}
.academy-seo-content h2:first-child { margin-top: 0; }
.academy-seo-content p {
  margin-bottom: 14px;
  color: var(--academy-text-light);
  font-size: 1rem;
  line-height: 1.7;
}
.academy-seo-content ul {
  margin-bottom: 16px;
  padding-left: 22px;
}
.academy-seo-content li {
  margin-bottom: 10px;
  color: var(--academy-text-light);
  line-height: 1.6;
}

/* ── FAQ Section ───────────────────────────────────────────────── */
.academy-faq {
  padding: 36px;
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  box-shadow: var(--academy-shadow-card);
}
.academy-faq h2 {
  font-size: 1.5rem;
  margin: 0 0 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e2e8f0;
  color: var(--academy-primary);
  font-weight: 700;
}
.faq-item {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e2e8f0;
}
.faq-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
.faq-item h3 {
  font-size: 1.1rem;
  margin: 0 0 10px;
  color: var(--academy-primary);
  font-weight: 600;
}
.faq-item p {
  margin: 0;
  color: var(--academy-text-light);
  line-height: 1.7;
  font-size: 1rem;
}

/* ── CTA Section ───────────────────────────────────────────────── */
.academy-cta {
  text-align: center;
  padding: 48px 28px;
  background: linear-gradient(135deg, var(--academy-primary) 0%, var(--academy-primary-light) 100%);
  border-radius: var(--academy-radius);
  color: #fff;
  box-shadow: var(--academy-shadow-card);
}
.academy-cta h2 {
  font-size: 1.7rem;
  margin: 0 0 12px;
  color: #fff;
}
.academy-cta p {
  margin: 0 0 24px;
  opacity: 0.95;
  font-size: 1.05rem;
  color: #e2e8f0;
}
.btn-cta {
  max-width: 420px;
  margin: 0 auto;
}

/* ── Profile Page ──────────────────────────────────────────────── */
.profile-page {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px;
  background: #fff;
  border-radius: var(--academy-radius);
  border: 1px solid var(--academy-border);
  box-shadow: var(--academy-shadow-card);
}
.profile-avatar {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--academy-primary) 0%, var(--academy-accent) 100%);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.profile-info h1 {
  font-size: 1.5rem;
  margin: 0 0 6px;
  color: var(--academy-primary);
}
.profile-info p {
  margin: 0;
  color: var(--academy-text-muted);
  font-size: 1rem;
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--academy-shadow-card);
}
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--academy-primary);
}
.stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--academy-text-muted);
  margin-top: 6px;
}

.profile-body {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.profile-section {
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 28px;
  box-shadow: var(--academy-shadow-card);
}
.profile-section h2 {
  font-size: 1.3rem;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e2e8f0;
  color: var(--academy-primary);
  font-weight: 700;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.cert-card {
  background: #fff;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 24px;
  box-shadow: var(--academy-shadow);
  text-align: center;
}
.cert-card.category {
  background: linear-gradient(135deg, #fdfbf7 0%, #f7f0e0 100%);
  border-color: #f5e6c8;
}
.cert-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 10px;
}
.cert-card h3 {
  font-size: 1.1rem;
  margin: 0 0 8px;
  color: var(--academy-primary);
}
.cert-card p {
  margin: 0 0 16px;
  color: var(--academy-text-muted);
  font-size: 0.9rem;
}

.course-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.course-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #f8fafc;
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 16px 20px;
  transition: background 0.15s, border-color 0.15s;
}
.course-item:hover {
  background: #f1f5f9;
  border-color: var(--academy-accent);
}
.course-item.completed {
  border-left: 4px solid var(--academy-success);
}
.course-thumb {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
  background: var(--academy-bg);
}
.course-info {
  flex: 1;
  min-width: 0;
}
.course-info h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.course-info h3 a {
  color: var(--academy-primary);
  text-decoration: none;
  font-weight: 600;
}
.course-info h3 a:hover {
  color: var(--academy-accent);
}
.course-item-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.progress-bar {
  height: 8px;
  background: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress-fill {
  height: 100%;
  background: var(--academy-accent);
  border-radius: 4px;
  transition: width 0.4s;
}
.progress-text {
  font-size: 0.85rem;
  color: var(--academy-text-muted);
}
.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--academy-text-muted);
  font-size: 1.05rem;
}
.empty-state a {
  color: var(--academy-accent);
  font-weight: 600;
}

/* ── Exam Section ──────────────────────────────────────────────── */
.exam-section {
  padding: 28px 32px 32px;
  border-top: 2px solid var(--academy-border);
  background: linear-gradient(135deg, #fdfbf7 0%, #f7f0e0 100%);
}
.exam-section h2 {
  font-size: 1.3rem;
  margin: 0 0 16px;
}
.exam-info {
  color: var(--academy-text-light);
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.exam-result {
  padding: 18px 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.exam-result.passed {
  background: #d4edda;
  border: 1px solid #a3e4d7;
  color: #155724;
}
.exam-result.failed {
  background: #f8d7da;
  border: 1px solid #f5b7b1;
  color: #721c24;
}
.exam-passed-msg { margin: 8px 0 12px; }
.exam-failed-msg { margin: 8px 0 12px; }

/* Quiz / Exam shared question styles */
.quiz-question {
  margin-bottom: 16px;
  padding: 14px 16px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--academy-border);
}
.quiz-q {
  font-weight: 600;
  margin: 0 0 10px;
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.quiz-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}
.quiz-option:hover { background: #f8f9fa; }
.quiz-option input { margin: 0; }

/* Quality certificate styles */
.cert-card.quality {
  background: linear-gradient(135deg, #fffdf5 0%, #f9f3d7 100%);
  border-color: #f0e0a0;
  position: relative;
}
.cert-badge-star {
  font-size: 2.2rem;
  color: #d4af37;
  display: block;
  margin-bottom: 8px;
}
.btn-gold {
  background: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
  color: #4a3b00;
  border: none;
  font-weight: 600;
}
.btn-gold:hover {
  background: linear-gradient(135deg, #c5a028 0%, #e5c12e 100%);
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .lesson-page { flex-direction: column; }
  .lesson-sidebar { width: 100%; position: static; }
  .lesson-content { padding: 20px; }
  .compare-box,
  .two-columns,
  .interface-guide { grid-template-columns: 1fr; }
  .academy-hero h1 { font-size: 1.8rem; }
  .course-header h1 { font-size: 1.5rem; }
}
@media (max-width: 600px) {
  .academy-grid { grid-template-columns: 1fr; }
  .course-header-image { height: 180px; }
  .lesson-content { padding: 16px; }
}

/* ── Code blocks inside lesson content ─────────────────────────── */
.code-block pre,
.code-block code {
  color: var(--academy-primary);
  font-family: var(--font-mono, monospace);
}
.code-block pre {
  background: #fff;
  padding: 14px 16px;
  border-radius: 8px;
  border-left: 3px solid var(--academy-accent);
  margin: 0;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.code-block pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

/* ── Order Confirmation Page ───────────────────────────────────── */
.order-confirm {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.order-summary {
  background: var(--academy-card);
  border: 1px solid var(--academy-border);
  border-top: 4px solid var(--academy-primary);
  border-radius: var(--academy-radius);
  padding: 28px 32px;
  box-shadow: var(--academy-shadow-card);
}
.order-summary-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--academy-text-muted);
  margin-bottom: 14px;
}
.order-summary h2 {
  font-size: 1.25rem;
  margin: 0 0 16px;
  color: var(--academy-primary);
  border: none;
  padding: 0;
  font-weight: 700;
}
.order-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--academy-border);
}
.order-price strong {
  font-size: 2rem;
  font-weight: 800;
  color: var(--academy-primary);
  letter-spacing: -0.5px;
}
.order-price-note {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--academy-text-muted);
  background: #e2e8f0;
  padding: 3px 9px;
  border-radius: 5px;
}
.order-access-info {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.order-access-info svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--academy-text-muted);
}
.order-access-info p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--academy-text-muted);
  line-height: 1.6;
}
.order-consents {
  background: var(--academy-card);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius);
  padding: 24px 32px;
  box-shadow: var(--academy-shadow-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.order-consent-label {
  display: flex !important;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--academy-text);
}
.order-consent-label label {
  display: inline !important;
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--academy-text);
  font-weight: normal;
  margin: 0;
}
.order-consent-label input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--academy-primary);
}
.order-confirm .order-consent-label a {
  color: #0b1326 !important;
  font-weight: 600;
  text-decoration: underline;
}
.order-confirm .order-consent-label a:hover {
  opacity: 0.7;
}
.order-cancel-note {
  margin: 4px 0 0;
  text-align: center;
}
.order-confirm .order-cancel-note a {
  color: var(--academy-text-muted) !important;
  font-size: 0.9rem;
  text-decoration: none !important;
}
.order-confirm .order-cancel-note a:hover {
  color: var(--academy-primary) !important;
}

/* Purchase history table */
.st-simple-table-wrap {
  overflow-x: auto;
}
.st-simple-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  color: #dae2fd;
}
.st-simple-table thead tr {
  background: rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.st-simple-table th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  color: #b0bec5;
}
.st-simple-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.st-simple-table td a {
  color: #82b1ff;
  text-decoration: none;
}
.st-simple-table td a:hover {
  text-decoration: underline;
}
.st-profile-card__body {
  padding: 0;
}
.st-profile-card__empty {
  padding: 24px;
  text-align: center;
  color: #90a4ae;
  font-size: 14px;
}
.st-profile-card__empty .material-symbols-outlined {
  font-size: 32px;
  display: block;
  margin-bottom: 8px;
  color: #546e7a;
}
.st-profile-card__empty a {
  color: #82b1ff;
}
.st-profile-card__title {
  color: #dae2fd !important;
}