/* ============================================================
   CATALOG & COURSE-DETAIL REDESIGN — shared variables
   Matches DENAgenticAI brand + LMS portal design system
   ============================================================ */
:root {
  --c-green:        #128413;
  --c-green-mid:    #166534;
  --c-green-light:  #eaf3de;
  --c-green-border: #c0dd97;
  --c-green-text:   #3B6D11;
  --c-navy:         #222222;
  --c-purple:       #3B3280;
  --c-purple-light: #edeaff;
  --c-teal:         #00695c;
  --c-accent:       #4ade80;
  --c-white:        #ffffff;
  --c-bg:           #f5f7f4;
  --c-bg-alt:       #f8faf6;
  --c-border:       #e2e8df;
  --c-border-light: #eef0ec;
  --c-text:         #111810;
  --c-text-muted:   #5a6355;
  --c-text-hint:    #9aaa93;
  --c-r-sm:  6px;
  --c-r-md:  10px;
  --c-r-lg:  16px;
  --c-r-xl:  24px;
  --c-sh-sm: 0 1px 3px rgba(0,0,0,0.06);
  --c-sh-md: 0 4px 16px rgba(0,0,0,0.08);
  --c-sh-lg: 0 8px 32px rgba(0,0,0,0.10);
  --c-font:  'Plus Jakarta Sans', system-ui, sans-serif;
  --c-serif: 'DM Serif Display', Georgia, serif;
  --c-max-w: 1140px;
}

/* ── HEADER — matches labs.html learner portal header ── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  height: 56px;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  max-width: var(--c-max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.header .logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.header .logo-img { height: 32px; width: auto; object-fit: contain; }
.header .nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.header .nav a { font-size: 14px; color: var(--c-text-muted); text-decoration: none; font-weight: 500; transition: color 0.15s; }
.header .nav a:hover { color: var(--c-green); }
.header .nav a.active { color: var(--c-green); font-weight: 600; }
.header .header-actions { display: flex; align-items: center; gap: 10px; margin-left: 16px; }
.header .mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; color: var(--c-text-muted); }
.user-chip { display: flex; align-items: center; gap: 8px; }
.user-name { font-size: 14px; font-weight: 500; color: var(--c-text-muted); }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--c-green);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: white; flex-shrink: 0;
}
/* Push main content below fixed header */
.main-content { margin-top: 56px; }

/* ── CONTAINER ── */
.c-container { max-width: var(--c-max-w); margin: 0 auto; padding: 0 24px; }

/* ── HERO ── */
.catalog-hero {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  padding: 64px 24px 48px;
  text-align: center;
}
.catalog-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--c-green-light); color: var(--c-green-text);
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.07em; padding: 5px 14px; border-radius: 20px;
  border: 1px solid var(--c-green-border); margin-bottom: 18px;
}
.catalog-hero h1 {
  font-size: clamp(28px, 4vw, 44px); font-weight: 700;
  color: var(--c-text); line-height: 1.15; margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.catalog-hero p {
  font-size: 17px; color: var(--c-text-muted); max-width: 540px;
  margin: 0 auto 36px; line-height: 1.7;
}

/* ── FILTER PILLS ── */
.catalog-filters {
  display: flex; gap: 6px; justify-content: center; flex-wrap: wrap;
}
.catalog-filter-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 20px;
  font-size: 13px; font-weight: 600; cursor: pointer;
  border: 1.5px solid var(--c-border); background: var(--c-white);
  color: var(--c-text-muted); transition: all 0.15s;
  font-family: var(--c-font);
}
.catalog-filter-btn:hover {
  border-color: var(--c-green-border); background: var(--c-green-light); color: var(--c-green);
}
.catalog-filter-btn.active {
  background: var(--c-navy); color: white; border-color: var(--c-navy);
}
.catalog-filter-btn .material-symbols-outlined { font-size: 16px; }

/* ── COURSES GRID ── */
.catalog-body { padding: 48px 0 64px; }
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* ── COURSE CARD ── */
.c-course-card {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: var(--c-r-xl); overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column;
}
.c-course-card:hover { transform: translateY(-4px); box-shadow: var(--c-sh-lg); }

.c-course-thumb {
  height: 140px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.c-course-thumb-professional { background: linear-gradient(135deg, #0d5e0e 0%, #128413 60%, #1a9e1b 100%); }
.c-course-thumb-executive    { background: linear-gradient(135deg, #1e1060 0%, #3B3280 60%, #5a4fb0 100%); }
.c-course-thumb-technical    { background: linear-gradient(135deg, #004d45 0%, #00695c 60%, #00897b 100%); }
.c-course-thumb-icon { font-size: 48px; color: rgba(255,255,255,0.9); position: relative; z-index: 1; }
.c-course-thumb::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 70%, rgba(255,255,255,0.08) 0%, transparent 60%);
}

.c-course-body { padding: 22px 22px 18px; flex: 1; display: flex; flex-direction: column; }
.c-course-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.c-badge {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 3px 9px; border-radius: 20px;
}
.c-badge-professional { background: var(--c-green-light); color: var(--c-green-text); border: 1px solid var(--c-green-border); }
.c-badge-executive    { background: var(--c-purple-light); color: #2d2266; border: 1px solid #c4bff0; }
.c-badge-technical    { background: #e0f2f1; color: #004d45; border: 1px solid #80cbc4; }
.c-badge-modules      { background: var(--c-bg-alt); color: var(--c-text-muted); border: 1px solid var(--c-border); }

.c-course-title { font-size: 17px; font-weight: 700; color: var(--c-text); margin-bottom: 8px; line-height: 1.3; letter-spacing: -0.01em; }
.c-course-desc  { font-size: 13px; color: var(--c-text-muted); line-height: 1.65; flex: 1; margin-bottom: 18px; }

.c-course-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; border-top: 1px solid var(--c-border); gap: 8px; flex-wrap: wrap;
}
.c-course-meta { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--c-text-hint); }
.c-course-meta span { display: flex; align-items: center; gap: 4px; }
.c-course-meta .material-symbols-outlined { font-size: 14px; }

/* ── CTA BUTTON ── */
.c-btn-primary {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--c-green); color: white;
  padding: 9px 18px; border-radius: var(--c-r-md);
  font-size: 13px; font-weight: 600; text-decoration: none;
  border: none; cursor: pointer; font-family: var(--c-font);
  transition: all 0.15s; white-space: nowrap;
}
.c-btn-primary:hover {
  background: var(--c-green-mid); color: white;
  transform: translateY(-1px); box-shadow: 0 4px 12px rgba(18,132,19,0.25);
  text-decoration: none;
}

/* ── WHY SECTION ── */
.catalog-why {
  background: var(--c-white); border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border); padding: 64px 24px;
}
.catalog-why-inner { display: flex; gap: 48px; align-items: flex-start; flex-wrap: wrap; }
.catalog-why-left { flex: 1; min-width: 280px; }
.catalog-why-right { flex: 0 0 300px; display: flex; flex-direction: column; gap: 14px; }
.catalog-why-title { font-size: clamp(22px, 3vw, 30px); font-weight: 700; color: var(--c-text); margin-bottom: 12px; letter-spacing: -0.02em; line-height: 1.25; }
.catalog-why-desc  { font-size: 15px; color: var(--c-text-muted); margin-bottom: 24px; line-height: 1.7; }
.catalog-why-list  { display: flex; flex-direction: column; gap: 10px; }
.catalog-why-item  { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--c-text-muted); }
.catalog-why-item .material-symbols-outlined { font-size: 17px; color: var(--c-green); flex-shrink: 0; }
.catalog-audience-card {
  background: var(--c-bg-alt); border: 1px solid var(--c-border);
  border-radius: var(--c-r-lg); padding: 18px 20px; text-align: center;
}
.catalog-audience-icon { font-size: 28px; margin-bottom: 8px; }
.catalog-audience-label { font-size: 13px; font-weight: 700; color: var(--c-text); margin-bottom: 5px; }
.catalog-audience-q { font-size: 12px; color: var(--c-text-muted); line-height: 1.6; font-style: italic; }

/* ── CTA SECTION ── */
.catalog-cta { padding: 64px 24px; }
.catalog-cta-box {
  background: var(--c-navy); border-radius: var(--c-r-xl);
  padding: 52px 40px; text-align: center; position: relative; overflow: hidden;
}
.catalog-cta-box::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 240px; height: 240px; border-radius: 50%; background: rgba(74,222,128,0.08);
}
.catalog-cta-box::after {
  content: ''; position: absolute; bottom: -40px; left: -40px;
  width: 160px; height: 160px; border-radius: 50%; background: rgba(74,222,128,0.05);
}
.catalog-cta-box h2 { font-size: clamp(22px, 3vw, 32px); font-weight: 700; color: white; margin-bottom: 10px; letter-spacing: -0.02em; position: relative; z-index: 1; }
.catalog-cta-box p  { font-size: 16px; color: rgba(255,255,255,0.7); margin-bottom: 28px; position: relative; z-index: 1; }
.c-btn-accent {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--c-accent); color: #052e16;
  padding: 13px 28px; border-radius: var(--c-r-md);
  font-size: 15px; font-weight: 700; text-decoration: none;
  transition: all 0.2s; position: relative; z-index: 1;
}
.c-btn-accent:hover {
  background: #86efac; transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74,222,128,0.3); text-decoration: none; color: #052e16;
}

/* ── FOOTER ── */
.c-footer { background: var(--c-navy); color: rgba(255,255,255,0.7); padding: 48px 24px 28px; }
.c-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; max-width: var(--c-max-w); margin: 0 auto; }
.c-footer-brand p { font-size: 13px; line-height: 1.7; margin-top: 12px; }
.c-footer-brand img { height: 28px; filter: brightness(0) invert(1); }
.c-footer-col h4 { font-size: 13px; font-weight: 700; color: white; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.c-footer-links { display: flex; flex-direction: column; gap: 7px; }
.c-footer-links a { font-size: 13px; color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.15s; }
.c-footer-links a:hover { color: var(--c-accent); }
.c-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; margin-top: 36px;
  max-width: var(--c-max-w); margin-left: auto; margin-right: auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12px; color: rgba(255,255,255,0.4);
}

/* ── RESPONSIVE (catalog) ── */
@media (max-width: 768px) {
  .catalog-hero { padding: 40px 16px 32px; }
  .catalog-body { padding: 28px 0 40px; }
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-why { padding: 40px 16px; }
  .catalog-why-right { flex: 1 1 100%; flex-direction: row; flex-wrap: wrap; }
  .catalog-audience-card { flex: 1; min-width: 160px; }
  .catalog-cta { padding: 32px 16px; }
  .catalog-cta-box { padding: 36px 24px; }
  .c-footer-grid { grid-template-columns: 1fr 1fr; }
  .c-footer-brand { grid-column: span 2; }
}
@media (max-width: 480px) {
  .c-footer-grid { grid-template-columns: 1fr; }
  .c-footer-brand { grid-column: span 1; }
}

/* ============================================================
   COURSE DETAIL ONLY
   ============================================================ */

/* ── BREADCRUMB ── */
.c-breadcrumb { background: var(--c-white); border-bottom: 1px solid var(--c-border); padding: 12px 0; }
.c-breadcrumb-inner { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--c-text-hint); }
.c-breadcrumb-inner a { color: var(--c-text-hint); text-decoration: none; transition: color 0.15s; }
.c-breadcrumb-inner a:hover { color: var(--c-green); }
.c-breadcrumb-inner span { color: var(--c-text-muted); font-weight: 500; }
.c-breadcrumb-sep { color: var(--c-border); }

/* ── COURSE HERO ── */
.course-hero-wrap { background: var(--c-white); border-bottom: 1px solid var(--c-border); padding: 40px 0 0; }
.course-hero-inner { display: flex; gap: 40px; align-items: flex-start; padding-bottom: 40px; }
.course-hero-content { flex: 1; min-width: 0; }
.c-hero-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.c-badge-enrolling { background: var(--c-green-light); color: var(--c-green-mid); border: 1px solid var(--c-green-border); }
.course-title { font-size: clamp(24px, 3.5vw, 38px); font-weight: 700; color: var(--c-text); line-height: 1.2; margin-bottom: 12px; letter-spacing: -0.02em; }
.course-subtitle { font-size: 16px; color: var(--c-text-muted); line-height: 1.7; margin-bottom: 24px; }
.course-meta-row { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; padding: 14px 0; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.course-meta-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--c-text-muted); }
.course-meta-item .material-symbols-outlined { font-size: 16px; color: var(--c-green); }
.course-section-label { font-size: 14px; font-weight: 700; color: var(--c-text); margin-bottom: 8px; margin-top: 20px; }
.course-who-for { font-size: 14px; color: var(--c-text-muted); line-height: 1.7; }
.course-learn-list { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.course-learn-item { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--c-text-muted); }
.course-learn-item .material-symbols-outlined { font-size: 16px; color: var(--c-green); flex-shrink: 0; margin-top: 2px; }

/* ── ENROLLMENT CARD ── */
.enrollment-card {
  flex: 0 0 300px; background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: var(--c-r-xl); box-shadow: var(--c-sh-lg); overflow: hidden;
  position: sticky; top: 80px;
}
.enrollment-thumb { height: 120px; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.enrollment-thumb-professional { background: linear-gradient(135deg, #0d5e0e 0%, #128413 60%, #1a9e1b 100%); }
.enrollment-thumb-executive    { background: linear-gradient(135deg, #1e1060 0%, #3B3280 60%, #5a4fb0 100%); }
.enrollment-thumb-technical    { background: linear-gradient(135deg, #004d45 0%, #00695c 60%, #00897b 100%); }
.enrollment-thumb .material-symbols-outlined { font-size: 44px; color: rgba(255,255,255,0.9); }
.enrollment-body { padding: 20px; }
.enrollment-price { font-size: 26px; font-weight: 700; color: var(--c-text); margin-bottom: 4px; line-height: 1; display: flex; align-items: baseline; gap: 6px; }
.enrollment-price-note { font-size: 13px; font-weight: 500; color: var(--c-text-hint); }
.enrollment-price-subtext { font-size: 12px; color: var(--c-text-hint); margin-bottom: 16px; }
.c-btn-enroll {
  display: flex; align-items: center; justify-content: center; gap: 7px;
  background: var(--c-green); color: white; width: 100%;
  padding: 13px 20px; border-radius: var(--c-r-md);
  font-size: 15px; font-weight: 700; text-decoration: none;
  border: none; cursor: pointer; font-family: var(--c-font); transition: all 0.15s;
}
.c-btn-enroll:hover { background: var(--c-green-mid); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(18,132,19,0.25); color: white; text-decoration: none; }
.enrollment-audit-link { display: block; text-align: center; margin-top: 10px; font-size: 13px; color: var(--c-text-hint); text-decoration: underline; cursor: pointer; }
.enrollment-audit-link:hover { color: var(--c-green); }

.c-btn-download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--c-green-mid);
  color: white;
  width: 100%;
  padding: 11px 12px;
  border-radius: var(--c-r-md);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  margin-top: 16px;
  transition: all 0.15s;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.c-btn-download:hover {
  background: var(--c-green);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  color: white;
  text-decoration: none;
}
.c-btn-download .material-symbols-outlined {
  font-size: 16px;
}
.enrollment-coupon { border-top: 1px solid var(--c-border); margin-top: 16px; padding-top: 14px; }
.enrollment-coupon p { font-size: 12px; color: var(--c-text-muted); margin-bottom: 8px; }
.enrollment-coupon-row { display: flex; gap: 6px; }
.enrollment-coupon input {
  flex: 1; border: 1.5px solid var(--c-border); border-radius: var(--c-r-sm);
  padding: 7px 10px; font-size: 13px; font-family: var(--c-font); outline: none; color: var(--c-text); transition: border-color 0.15s;
}
.enrollment-coupon input:focus { border-color: var(--c-green); }
.c-btn-coupon {
  background: var(--c-bg-alt); color: var(--c-text-muted); border: 1.5px solid var(--c-border);
  padding: 7px 12px; border-radius: var(--c-r-sm); font-size: 12px; font-weight: 600;
  cursor: pointer; font-family: var(--c-font); transition: all 0.15s;
}
.c-btn-coupon:hover { border-color: var(--c-green-border); background: var(--c-green-light); color: var(--c-green); }
.enrollment-includes { border-top: 1px solid var(--c-border); margin-top: 16px; padding-top: 14px; }
.enrollment-includes h4 { font-size: 12px; font-weight: 700; color: var(--c-text); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.05em; }
.enrollment-includes ul { display: flex; flex-direction: column; gap: 7px; }
.enrollment-includes li { font-size: 13px; color: var(--c-text-muted); display: flex; align-items: center; gap: 7px; list-style: none; }
.enrollment-includes li::before {
  content: ''; width: 16px; height: 16px; flex-shrink: 0;
  background: var(--c-green-light); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='10' viewBox='0 0 10 10' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 5l3 3 5-6' stroke='%23128413' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center;
}

/* ── CURRICULUM ── */
.curriculum-section { background: var(--c-bg); padding: 56px 0; }
.curriculum-header { margin-bottom: 28px; }
.curriculum-header h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 700; color: var(--c-text); margin-bottom: 6px; letter-spacing: -0.01em; }
.curriculum-header p { font-size: 14px; color: var(--c-text-muted); }
.curriculum-module {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: var(--c-r-lg); margin-bottom: 8px; overflow: hidden; transition: box-shadow 0.15s;
}
.curriculum-module:hover { box-shadow: var(--c-sh-md); }
.curriculum-module-header {
  display: flex; align-items: center; padding: 16px 20px; cursor: pointer; width: 100%;
  background: none; border: none; font-family: var(--c-font); gap: 14px; text-align: left;
}
.curriculum-module-number {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--c-green-light); color: var(--c-green-mid);
  font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.curriculum-module.expanded .curriculum-module-number { background: var(--c-navy); color: white; }
.curriculum-module-info { flex: 1; min-width: 0; }
.curriculum-module-title { font-size: 15px; font-weight: 600; color: var(--c-text); margin-bottom: 2px; }
.curriculum-module-meta { font-size: 12px; color: var(--c-text-hint); }
.curriculum-module-chevron { width: 18px; height: 18px; color: var(--c-text-hint); transition: transform 0.2s; flex-shrink: 0; }
.curriculum-module.expanded .curriculum-module-chevron { transform: rotate(90deg); }
.curriculum-lessons { display: none; border-top: 1px solid var(--c-border-light); }
.curriculum-module.expanded .curriculum-lessons { display: block; }
.curriculum-lesson {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 20px 11px 62px; font-size: 13px; color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border-light);
}
.curriculum-lesson:last-child { border-bottom: none; }
.curriculum-lesson-icon { font-size: 15px; color: var(--c-text-hint); flex-shrink: 0; }

/* ── INSTRUCTOR ── */
.instructor-section-wrap { background: var(--c-white); border-top: 1px solid var(--c-border); padding: 48px 0; }
.instructor-card {
  border: 1px solid var(--c-border); border-radius: var(--c-r-xl);
  padding: 28px 32px; display: flex; gap: 24px; align-items: flex-start; background: var(--c-bg-alt);
}
.instructor-avatar {
  width: 80px; height: 80px; border-radius: var(--c-r-lg);
  background: var(--c-navy); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.instructor-avatar .material-symbols-outlined { font-size: 36px; color: rgba(255,255,255,0.7); }
.instructor-name { font-size: 18px; font-weight: 700; color: var(--c-text); margin-bottom: 3px; }
.instructor-title-text { font-size: 13px; color: var(--c-green); font-weight: 600; margin-bottom: 10px; }
.instructor-bio { font-size: 14px; color: var(--c-text-muted); line-height: 1.7; }

/* ── BOTTOM CTA ── */
.course-cta-section { padding: 56px 0; }
.course-cta-box {
  background: var(--c-navy); border-radius: var(--c-r-xl);
  padding: 48px 40px; text-align: center; position: relative; overflow: hidden;
}
.course-cta-box::before {
  content: ''; position: absolute; top: -50px; right: -50px;
  width: 200px; height: 200px; border-radius: 50%; background: rgba(74,222,128,0.07);
}
.course-cta-box h2 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 700; color: white; margin-bottom: 8px; letter-spacing: -0.02em; position: relative; z-index: 1; }
.course-cta-box p  { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 24px; position: relative; z-index: 1; }

/* ── RESPONSIVE (course detail) ── */
@media (max-width: 900px) {
  .course-hero-inner { flex-direction: column; }
  .enrollment-card { flex: none; width: 100%; position: static; }
}
@media (max-width: 768px) {
  .course-hero-wrap { padding: 24px 0 0; }
  .course-meta-row { gap: 12px; }
  .curriculum-section { padding: 36px 0; }
  .instructor-card { flex-direction: column; }
  .c-footer-grid { grid-template-columns: 1fr 1fr; }
  .c-footer-brand { grid-column: span 2; }
}
@media (max-width: 480px) {
  .c-footer-grid { grid-template-columns: 1fr; }
  .c-footer-brand { grid-column: span 1; }
}