/* ===== COURSE PAGE STYLES ===== */

/* Hero */
.course-hero {
  padding: 100px 40px 0;
  background: var(--bg-soft);
  position: relative;
  overflow: hidden;
}
.course-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-grad, linear-gradient(135deg,#0057FF,#764ba2));
  opacity: .06;
  pointer-events: none;
}

.course-hero-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px;
  align-items: flex-start;
  padding-bottom: 80px;
}

.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 700; color: var(--text-muted);
  margin-bottom: 20px; transition: color .2s;
}
.back-link:hover { color: var(--primary); }

.course-hero-badge {
  display: inline-flex; align-items: center;
  background: var(--accent-light); color: var(--accent);
  border: 1px solid rgba(255,107,0,.2);
  padding: 6px 16px; border-radius: 100px;
  font-size: 13px; font-weight: 700;
  margin-bottom: 20px;
}

.course-hero h1 {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 900; letter-spacing: -2px; line-height: 1.08;
  margin-bottom: 20px;
}
.course-hero h1 span { color: var(--primary); }

.course-hero-sub {
  font-size: 17px; color: var(--text-muted);
  line-height: 1.8; margin-bottom: 32px; max-width: 560px;
}

.course-meta-row {
  display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 36px;
}
.course-meta-item {
  display: flex; flex-direction: column;
  font-size: 13px; color: var(--text-muted);
  gap: 2px;
}
.course-meta-item strong { font-size: 15px; color: var(--text); }

.course-hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero Card */
.course-hero-card {
  background: #fff; border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  box-shadow: var(--card-shadow);
  position: sticky; top: 88px;
}

.course-icon-big { font-size: 64px; text-align: center; margin-bottom: 24px; }

.course-card-stats {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 12px; margin-bottom: 24px;
  padding-bottom: 24px; border-bottom: 1px solid var(--border);
  text-align: center;
}
.course-card-stats span { display: block; font-size: 24px; font-weight: 900; color: var(--primary); letter-spacing: -1px; }
.course-card-stats small { font-size: 11px; color: var(--text-muted); font-weight: 600; }

.price-label { font-size: 13px; color: var(--text-muted); font-weight: 600; margin-bottom: 4px; }
.price-val { font-size: 40px; font-weight: 900; letter-spacing: -2px; color: var(--text); }
.price-val span { font-size: 18px; color: var(--text-muted); font-weight: 500; letter-spacing: 0; }

.course-includes { margin-top: 20px; display: flex; flex-direction: column; gap: 8px; }
.include-item { font-size: 14px; color: var(--text-muted); font-weight: 600; }

/* Sections */
.section-inner { max-width: 1100px; margin: 0 auto; }

.outcomes-section { padding: 80px 40px; background: var(--bg); }
.outcomes-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
  gap: 16px; margin-top: 36px;
}
.outcome-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 18px 20px; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; color: var(--text);
  line-height: 1.5;
}
.outcome-item span { flex: 1; }

/* Curriculum */
.curriculum-section { padding: 80px 40px; background: var(--bg-soft); }
.curriculum-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 36px; gap: 24px;
}

.curriculum-list { display: flex; flex-direction: column; gap: 12px; }

.week-block {
  background: #fff; border: 1.5px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: box-shadow .2s;
}
.week-block:hover { box-shadow: var(--card-shadow); }
.week-block.capstone { border-color: var(--accent); }

.week-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; cursor: pointer;
  user-select: none;
  transition: background .2s;
}
.week-header:hover { background: var(--bg-soft); }
.week-left { display: flex; align-items: center; gap: 18px; }

.week-num {
  background: var(--primary-light); color: var(--primary);
  font-size: 12px; font-weight: 800; padding: 6px 14px;
  border-radius: 100px; white-space: nowrap;
}

.week-title { font-size: 16px; font-weight: 800; color: var(--text); }
.week-sub { font-size: 13px; color: var(--text-muted); margin-top: 3px; }
.week-toggle { font-size: 14px; color: var(--text-muted); transition: transform .25s; }

.week-body {
  padding: 0 24px; max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .25s ease;
}
.week-body.open {
  max-height: 600px;
  padding: 0 24px 20px;
  border-top: 1px solid var(--border);
}

.week-header.active .week-toggle { transform: rotate(180deg); }

.lesson-item, .assignment-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--bg-soft);
  font-size: 14px; color: var(--text-muted); line-height: 1.55;
}
.assignment-item {
  color: var(--primary); font-weight: 700;
  background: var(--primary-light); margin: 8px -8px 0; padding: 12px 16px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  border-bottom: none;
}
.lesson-item:last-of-type { border-bottom: none; }

/* Tools */
.tools-section { padding: 80px 40px; background: var(--bg); }
.tools-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.tool-chip {
  background: var(--bg-soft); border: 1.5px solid var(--border);
  color: var(--text); padding: 10px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 700;
  transition: all .2s;
}
.tool-chip:hover {
  border-color: var(--primary); background: var(--primary-light); color: var(--primary);
}

/* CTA */
.course-cta-section {
  padding: 100px 40px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-mid) 100%);
  border-top: 1px solid var(--border);
}

/* Download toast */
.download-toast {
  position: fixed; bottom: 32px; right: 32px; z-index: 9999;
  background: #0057FF; color: #fff;
  padding: 16px 24px; border-radius: 12px;
  font-size: 15px; font-weight: 700;
  box-shadow: 0 8px 32px rgba(0,87,255,.3);
  display: flex; align-items: center; gap: 10px;
  animation: slideInToast .3s ease;
  max-width: 340px;
}
@keyframes slideInToast {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .course-hero-inner { grid-template-columns: 1fr; }
  .course-hero-card { position: static; }
  .curriculum-header { flex-direction: column; }
  .course-hero { padding: 90px 24px 0; }
  .course-hero-inner { padding-bottom: 48px; gap: 40px; }
  .outcomes-section,
  .curriculum-section,
  .tools-section,
  .course-cta-section { padding: 60px 24px; }
}

@media (max-width: 600px) {
  .course-meta-row { gap: 14px; }
  .course-hero-btns { flex-direction: column; }
  .week-left { gap: 12px; }
  .week-title { font-size: 14px; }
}