/* ================================================
   COURSE DETAIL PAGE - Shared Styles
   Used by all course-*.html pages
   ================================================ */

/* ========== COURSE HERO ========== */
.course-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #1e4dbf 100%);
  padding: 60px 0 0;
  position: relative;
  overflow: hidden;
}
.course-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('tech_bg.png') center/cover;
  opacity: 0.07;
}
.course-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 50px;
  align-items: start;
}
.course-hero-left { padding-bottom: 50px; }
.course-hero-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: rgba(255,255,255,0.65);
  margin-bottom: 20px; flex-wrap: wrap;
}
.course-hero-breadcrumb a { color: rgba(255,255,255,0.65); }
.course-hero-breadcrumb a:hover { color: var(--accent-light); }
.course-hero-breadcrumb i { font-size: 10px; }
.course-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(244,121,32,0.2);
  border: 1px solid rgba(244,121,32,0.4);
  color: var(--accent-light);
  padding: 6px 16px; border-radius: 50px;
  font-size: 12px; font-weight: 600;
  margin-bottom: 18px;
}
.course-hero h1 {
  font-size: clamp(28px, 4vw, 48px);
  color: var(--white);
  font-weight: 800; line-height: 1.2; margin-bottom: 16px;
}
.course-hero h1 span { color: var(--accent-light); }
.course-hero-desc {
  font-size: 16px; color: rgba(255,255,255,0.8);
  line-height: 1.75; margin-bottom: 28px; max-width: 580px;
}
.course-meta-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.meta-chip {
  display: flex; align-items: center; gap: 7px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); padding: 8px 16px; border-radius: 50px;
  font-size: 13px; font-weight: 600; backdrop-filter: blur(6px);
}
.meta-chip i { color: var(--accent-light); font-size: 13px; }
.course-hero-rating { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
.stars { display: flex; gap: 3px; }
.stars i { color: #fbbf24; font-size: 15px; }
.rating-num { font-size: 18px; font-weight: 800; color: var(--white); }
.rating-count { font-size: 13px; color: rgba(255,255,255,0.6); }
.course-hero-wave { position: relative; margin-top: 20px; }
.course-hero-wave svg { display: block; width: 100%; }

/* ========== STICKY ENROLL CARD ========== */
.enroll-card {
  background: var(--white); border-radius: 20px;
  overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  position: sticky; top: 90px;
}
.enroll-card-preview {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  padding: 30px; display: flex; align-items: center;
  justify-content: center; min-height: 180px; position: relative;
}
.enroll-card-icon {
  width: 90px; height: 90px;
  border-radius: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 42px; color: var(--white);
}
.enroll-card-body { padding: 28px; }
.enroll-card-fee {
  font-size: 38px; font-weight: 800;
  color: var(--accent); line-height: 1; margin-bottom: 4px;
}
.enroll-card-fee .old-fee {
  font-size: 18px; color: var(--text-light);
  text-decoration: line-through; margin-left: 8px; font-weight: 400;
}
.enroll-card-fee-note { font-size: 13px; color: var(--text-light); margin-bottom: 20px; }
.enroll-card-discount {
  display: inline-flex; align-items: center; gap: 6px;
  background: #dcfce7; color: #16a34a;
  font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 50px; margin-bottom: 20px;
}
.enroll-card-btn { width: 100%; text-align: center; justify-content: center; margin-bottom: 12px; border-radius: 12px; padding: 16px; font-size: 16px; }
.enroll-card-demo {
  width: 100%; text-align: center; justify-content: center;
  border-radius: 12px; padding: 14px; font-size: 15px;
  background: transparent; color: var(--primary);
  border: 2px solid var(--primary); cursor: pointer;
  font-family: 'Poppins', sans-serif; font-weight: 600;
  transition: var(--transition); display: flex; align-items: center; gap: 8px;
  text-decoration: none;
}
.enroll-card-demo:hover { background: var(--primary); color: var(--white); }
.enroll-card-features { margin-top: 22px; display: flex; flex-direction: column; gap: 10px; }
.ec-feat { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text); }
.ec-feat i { color: var(--accent); font-size: 14px; width: 16px; }
.enroll-card-divider { height: 1px; background: var(--border); margin: 18px 0; }
.share-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.share-btn {
  flex: 1; min-width: 80px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 8px; border-radius: 10px;
  font-size: 12px; font-weight: 600;
  cursor: pointer; border: none; transition: var(--transition);
  text-decoration: none; font-family: 'Poppins', sans-serif;
}
.share-btn.wa { background: #dcfce7; color: #16a34a; }
.share-btn.wa:hover { background: #16a34a; color: var(--white); }
.share-btn.ph { background: rgba(26,60,143,0.1); color: var(--primary); }
.share-btn.ph:hover { background: var(--primary); color: var(--white); }

/* ========== MAIN CONTENT ========== */
.course-content { padding: 70px 0; background: var(--gray-bg); }
.course-content-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 50px; align-items: start;
}
.content-section {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 36px; margin-bottom: 28px;
  border: 1px solid var(--border); box-shadow: 0 4px 20px rgba(26,60,143,0.06);
}
.content-section h2 {
  font-size: 22px; font-weight: 800; color: var(--dark);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 14px; border-bottom: 2px solid var(--border);
}
.content-section h2 .sec-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--white); flex-shrink: 0;
}

/* Learn Grid */
.learn-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.learn-item {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--gray-bg); padding: 14px 16px;
  border-radius: 10px; border: 1px solid var(--border); transition: var(--transition);
}
.learn-item:hover { border-color: var(--primary); background: rgba(26,60,143,0.04); }
.learn-item i { color: var(--accent); font-size: 14px; margin-top: 2px; flex-shrink: 0; }
.learn-item span { font-size: 13px; color: var(--text); line-height: 1.5; font-weight: 500; }

/* Syllabus */
.syllabus-module { margin-bottom: 10px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.module-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; cursor: pointer;
  background: var(--gray-bg); transition: var(--transition);
  font-size: 15px; font-weight: 700; color: var(--dark);
}
.module-header:hover { background: rgba(26,60,143,0.05); }
.module-header.open { background: var(--primary); color: var(--white); }
.module-header .mod-meta { display: flex; align-items: center; gap: 8px; }
.module-header .mod-count { font-size: 12px; font-weight: 500; opacity: 0.75; }
.module-header .mod-icon { font-size: 13px; transition: transform 0.3s; }
.module-header.open .mod-icon { transform: rotate(180deg); }
.module-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.module-body.open { max-height: 600px; border-top: 1px solid var(--border); }
.module-body ul { list-style: none; padding: 8px 0; }
.module-body ul li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; font-size: 14px; color: var(--text-light);
  border-bottom: 1px solid var(--border); transition: background 0.2s;
}
.module-body ul li:last-child { border-bottom: none; }
.module-body ul li:hover { background: var(--gray-bg); }
.module-body ul li i { color: var(--primary); font-size: 12px; width: 14px; }

/* Requirements */
.req-list { display: flex; flex-direction: column; gap: 10px; }
.req-item {
  display: flex; align-items: center; gap: 12px;
  font-size: 14px; color: var(--text);
  background: var(--gray-bg); padding: 12px 16px; border-radius: 10px;
}
.req-item i { color: var(--primary); font-size: 16px; }

/* Job Roles */
.job-roles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.job-role-card {
  text-align: center; padding: 20px 14px;
  background: var(--gray-bg); border-radius: 14px;
  border: 1px solid var(--border); transition: var(--transition);
}
.job-role-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }
.job-role-card i { font-size: 28px; color: var(--primary); margin-bottom: 10px; display: block; }
.job-role-card span { font-size: 13px; font-weight: 600; color: var(--dark); }

/* Reviews */
.reviews-grid { display: flex; flex-direction: column; gap: 16px; }
.review-card { background: var(--gray-bg); border-radius: 14px; padding: 20px; border: 1px solid var(--border); }
.review-top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: var(--white); flex-shrink: 0;
}
.review-name { font-size: 15px; font-weight: 700; color: var(--dark); }
.review-course { font-size: 12px; color: var(--text-light); }
.review-stars { margin-left: auto; display: flex; gap: 3px; }
.review-stars i { color: #fbbf24; font-size: 13px; }
.review-text { font-size: 14px; color: var(--text-light); line-height: 1.7; font-style: italic; }

/* Sidebar Cards */
.sidebar-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 28px; border: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(26,60,143,0.06); margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 17px; font-weight: 800; color: var(--dark);
  margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--border);
}
.course-includes-list { display: flex; flex-direction: column; gap: 12px; }
.include-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text); }
.include-item .inc-icon {
  width: 30px; height: 30px; border-radius: 8px;
  background: rgba(26,60,143,0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 13px; flex-shrink: 0;
}

/* Related Courses */
.related-course-item {
  display: flex; gap: 14px; align-items: center;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.related-course-item:last-child { border-bottom: none; padding-bottom: 0; }
.rc-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: var(--white); flex-shrink: 0;
}
.rc-title { font-size: 14px; font-weight: 700; color: var(--dark); margin-bottom: 2px; }
.rc-fee { font-size: 13px; color: var(--accent); font-weight: 600; }
.rc-arrow { margin-left: auto; color: var(--text-light); font-size: 12px; }

/* Instructor */
.instructor-card { display: flex; gap: 16px; align-items: center; margin-bottom: 16px; }
.instructor-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 700; color: var(--white); flex-shrink: 0;
}
.instructor-name { font-size: 17px; font-weight: 700; color: var(--dark); }
.instructor-title { font-size: 13px; color: var(--text-light); }
.instructor-stats { display: flex; gap: 14px; margin-top: 8px; }
.ins-stat { font-size: 12px; color: var(--text-light); display: flex; align-items: center; gap: 5px; }
.ins-stat strong { color: var(--primary); }
.instructor-bio { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* Mobile Sticky Bottom Bar */
.mobile-enroll-bar {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--white);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.12);
  padding: 12px 20px; z-index: 800;
  align-items: center; gap: 14px;
  border-top: 2px solid var(--border);
}
.mob-fee { font-size: 22px; font-weight: 800; color: var(--accent); }
.mob-fee span { font-size: 13px; color: var(--text-light); font-weight: 400; display: block; }
.mob-btn { flex: 1; text-align: center; justify-content: center; border-radius: 10px; padding: 14px; font-size: 15px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .course-hero-grid { grid-template-columns: 1fr; }
  .enroll-card { display: none !important; }
  .mobile-enroll-bar { display: flex !important; }
  .course-content-grid { grid-template-columns: 1fr; }
  .sidebar-sticky { display: none; }
  body { padding-bottom: 84px; }
}
@media (max-width: 768px) {
  .learn-grid { grid-template-columns: 1fr; }
  .job-roles-grid { grid-template-columns: repeat(2, 1fr); }
  .content-section { padding: 20px 16px; }
  .course-hero { padding: 36px 0 0; }
  .course-hero h1 { font-size: 26px; }
  .course-meta-chips { gap: 8px; }
  .meta-chip { padding: 6px 12px; font-size: 12px; }
}
@media (max-width: 480px) {
  .job-roles-grid { grid-template-columns: repeat(2, 1fr); }
  .module-header { font-size: 14px; padding: 14px 16px; }
  .content-section h2 { font-size: 18px; }
}