/* ===== COURSE DETAIL PAGE ===== */
.course-hero { padding: 120px 0 60px; position: relative; overflow: hidden; }
.course-hero-inner { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: start; }
.course-hero-badge { display: inline-block; padding: 5px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.course-hero h1 { color: var(--white); margin-bottom: 16px; }
.course-hero p { color: rgba(255,255,255,0.85); font-size: 1.05rem; margin-bottom: 24px; }
.course-meta-row { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 24px; }
.course-meta-row span { display: flex; align-items: center; gap: 6px; color: rgba(255,255,255,0.8); font-size: 0.9rem; }
.course-meta-row i { color: var(--accent); }
.course-rating { display: flex; align-items: center; gap: 8px; }
.stars { color: var(--accent); }
.enroll-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,0.2); position: sticky; top: 90px; }
.enroll-card .price { font-size: 2rem; font-weight: 800; color: var(--primary); }
.enroll-card .price-old { font-size: 1rem; color: var(--gray); text-decoration: line-through; margin-left: 8px; }
.enroll-card .discount { background: #e8f5e9; color: #2e7d32; padding: 3px 10px; border-radius: 50px; font-size: 0.8rem; font-weight: 700; margin-left: 8px; }
.enroll-card .enroll-duration { display: flex; align-items: center; justify-content: center; gap: 10px; background: var(--light); border-radius: 12px; padding: 14px 18px; margin-bottom: 8px; font-size: 1.05rem; color: var(--dark); }
.enroll-card .enroll-duration i { color: var(--secondary); font-size: 1.2rem; }
.enroll-card .enroll-duration strong { color: var(--primary); font-size: 1.15rem; }
.enroll-card .enroll-logo { width: 72px; height: 72px; margin: 0 auto 14px; background: var(--light); border-radius: 18px; display: flex; align-items: center; justify-content: center; padding: 12px; }
.enroll-card .enroll-logo img { width: 48px; height: 48px; object-fit: contain; }
.enroll-card .enroll-logo.duo { width: auto; min-width: 96px; gap: 8px; }
.enroll-card .enroll-logo.duo img { width: 36px; height: 36px; }
.enroll-card .btn { width: 100%; justify-content: center; margin-top: 16px; }
.enroll-features { margin: 20px 0; }
.enroll-features li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid #f0f0f0; font-size: 0.9rem; }
.enroll-features li:last-child { border-bottom: none; }
.enroll-features i { color: var(--secondary); width: 16px; }

/* Tabs */
.course-tabs { border-bottom: 2px solid #e8edf5; display: flex; gap: 0; margin-bottom: 40px; overflow-x: auto; }
.tab-btn { padding: 14px 24px; font-weight: 600; font-size: 0.95rem; cursor: pointer; border: none; background: none; color: var(--gray); border-bottom: 3px solid transparent; margin-bottom: -2px; white-space: nowrap; transition: var(--transition); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Curriculum */
.curriculum-module { border: 1px solid #e8edf5; border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.module-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: var(--light); cursor: pointer; font-weight: 600; }
.module-header span { font-size: 0.85rem; color: var(--gray); font-weight: 400; }
.module-topics { padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.module-topics.open { max-height: 500px; }
.module-topics li { padding: 10px 0; border-bottom: 1px solid #f0f0f0; font-size: 0.9rem; display: flex; align-items: center; gap: 10px; color: #4a5568; }
.module-topics li:last-child { border-bottom: none; }
.module-topics i { color: var(--secondary); font-size: 0.8rem; }

/* Tools grid */
.tools-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.tool-tag { padding: 8px 18px; background: var(--light); border-radius: 50px; font-size: 0.88rem; font-weight: 500; color: var(--dark); border: 1px solid #e0e7f0; }

/* Outcomes */
.outcomes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.outcome-item { display: flex; gap: 10px; align-items: flex-start; padding: 14px; background: var(--light); border-radius: 10px; font-size: 0.9rem; }
.outcome-item i { color: var(--secondary); margin-top: 2px; }

/* Instructors */
.instructor-card { display: flex; gap: 20px; align-items: flex-start; padding: 24px; background: var(--light); border-radius: var(--radius); }
.instructor-avatar { width: 80px; height: 80px; min-width: 80px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--white); font-weight: 700; }
.instructor-info h3 { margin-bottom: 4px; }
.instructor-info .role { color: var(--secondary); font-size: 0.88rem; font-weight: 600; margin-bottom: 8px; }
.instructor-info p { font-size: 0.9rem; }

/* FAQ */
.faq-item { border: 1px solid #e8edf5; border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.faq-q { padding: 16px 20px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-q i { transition: var(--transition); color: var(--primary); }
.faq-a { padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height 0.3s ease; font-size: 0.92rem; color: #4a5568; }
.faq-a.open { max-height: 200px; padding: 0 20px 16px; }

@media (max-width: 900px) {
  .course-hero-inner { grid-template-columns: 1fr; }
  .enroll-card { position: static; }
  .outcomes-grid { grid-template-columns: 1fr; }
}