/* ============================================================
   LEARNOVA — E-LEARNING PLATFORM TEMPLATE
   ============================================================ */

:root {
  --primary:     #4f46e5;
  --primary-rgb: 79,70,229;
  --accent:      #f59e0b;
  --accent-rgb:  245,158,11;
  --green:       #10b981;
  --bg:          #f9f8ff;
  --bg-dark:     #0f0e1a;
  --surface:     #f1efff;
  --surface-dark:#181626;
  --border:      rgba(79,70,229,0.12);
  --border-sub:  rgba(79,70,229,0.07);
  --text:        #18173a;
  --text-muted:  #6b6990;
  --text-dim:    #a8a6c4;
  --radius:      12px;
  --radius-lg:   20px;
  --shadow-sm:   0 2px 12px rgba(0,0,0,0.05);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg:   0 20px 60px rgba(79,70,229,0.12);
  --t:           0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.65; overflow-x: hidden; }
img { display: block; width: 100%; object-fit: cover; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ANNOUNCE */
.announce-bar { background: var(--primary); color: #fff; text-align: center; padding: 10px 48px; font-size: .82rem; font-weight: 500; position: relative; }
.announce-close { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); background: none; border: none; color: rgba(255,255,255,.6); cursor: pointer; }

/* NAVBAR */
.navbar { position: sticky; top: 0; z-index: 100; background: rgba(249,248,255,0.95); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-sub); }
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; height: 66px; gap: 24px; }
.nav-logo { font-family: 'Bricolage Grotesque', sans-serif; font-size: 1.3rem; font-weight: 800; color: var(--primary); margin-right: auto; letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 24px; }
.nav-link { font-size: .84rem; font-weight: 500; color: var(--text-muted); transition: color var(--t); }
.nav-link:hover { color: var(--primary); }
.nav-right { display: flex; gap: 8px; align-items: center; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; margin-left: auto; }
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; display: block; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 22px; border-radius: 8px; font-family: 'Inter', sans-serif; font-size: .88rem; font-weight: 600; cursor: pointer; border: none; transition: var(--t); }
.btn-lg { padding: 14px 30px; font-size: .95rem; border-radius: 10px; }
.btn-sm { padding: 8px 18px; font-size: .8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #3730cc; box-shadow: 0 8px 24px rgba(var(--primary-rgb),.35); transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: #fff; font-weight: 700; }
.btn-accent:hover { background: #d97706; transform: translateY(-1px); }
.btn-ghost { background: rgba(79,70,229,0.06); color: var(--primary); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(79,70,229,0.12); }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

/* SECTION */
.section { padding: 96px 0; }
.section-surface { background: var(--surface); }
.section-dark { background: var(--bg-dark); }
.section-header { text-align: center; max-width: 600px; margin: 0 auto 56px; }
.eyebrow { font-size: .72rem; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--primary); margin-bottom: 10px; }
.eyebrow-accent { color: var(--accent); }
.section-title { font-family: 'Bricolage Grotesque', sans-serif; font-size: clamp(1.9rem, 3.5vw, 2.8rem); font-weight: 800; color: var(--text); line-height: 1.15; margin-bottom: 14px; }
.section-title.text-light { color: #e8e6ff; }
.section-sub { font-size: .92rem; color: var(--text-muted); line-height: 1.7; }

/* HERO */
.hero { background: var(--bg); padding: 80px 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding-bottom: 80px; }
.hero-eyebrow { display: inline-block; background: rgba(var(--primary-rgb),0.08); border: 1px solid var(--border); color: var(--primary); padding: 6px 14px; border-radius: 100px; font-size: .75rem; font-weight: 700; letter-spacing: 1px; margin-bottom: 20px; }
.hero-title { font-family: 'Bricolage Grotesque', sans-serif; font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; color: var(--text); line-height: 1.08; margin-bottom: 20px; letter-spacing: -1px; }
.title-highlight { color: var(--primary); }
.hero-sub { font-size: clamp(.9rem, 1.5vw, 1rem); color: var(--text-muted); line-height: 1.75; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-trust { display: flex; align-items: center; gap: 12px; font-size: .84rem; color: var(--text-muted); }
.trust-avatars { display: flex; }
.trust-avatars img { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--bg); margin-left: -8px; object-fit: cover; }
.trust-avatars img:first-child { margin-left: 0; }
.hero-trust strong { color: var(--text); }
.hero-media { position: relative; }
.hero-img { height: 420px; border-radius: var(--radius-lg); object-fit: cover; }
.hero-rating-card { position: absolute; bottom: 24px; left: -20px; background: #fff; border-radius: 10px; padding: 12px 16px; box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 8px; font-size: .84rem; font-weight: 600; color: var(--text); }
.star-fill-icon { width: 18px; height: 18px; fill: var(--accent); color: var(--accent); }
.hero-cert-card { position: absolute; top: 24px; right: -20px; background: var(--primary); color: #fff; border-radius: 10px; padding: 12px 16px; box-shadow: 0 8px 24px rgba(var(--primary-rgb),.3); display: flex; align-items: center; gap: 8px; font-size: .84rem; font-weight: 600; }
.cert-icon { width: 18px; height: 18px; }
.stat-bar { background: var(--primary); }
.stat-inner { display: flex; padding: 24px 0; }
.stat-item { flex: 1; text-align: center; border-right: 1px solid rgba(255,255,255,0.1); padding: 0 16px; }
.stat-item:last-child { border-right: none; }
.stat-val { font-family: 'Bricolage Grotesque', sans-serif; font-size: 1.8rem; font-weight: 800; color: #fff; line-height: 1; margin-bottom: 4px; }
.stat-lbl { font-size: .7rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,0.5); }

/* CATEGORIES */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-card { background: #fff; border: 1.5px solid var(--border-sub); border-radius: var(--radius); padding: 20px; text-align: center; cursor: pointer; transition: var(--t); }
.cat-card:hover { border-color: var(--cat-color); box-shadow: 0 4px 20px rgba(0,0,0,0.08); transform: translateY(-3px); }
.cat-icon { width: 44px; height: 44px; background: rgba(var(--primary-rgb),0.08); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; color: var(--cat-color); }
.cat-icon svg { width: 20px; height: 20px; }
.cat-label { font-size: .88rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.cat-count { font-size: .76rem; color: var(--text-muted); }

/* FILTER ROW */
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.filter-btn { background: transparent; border: 1.5px solid var(--border); color: var(--text-muted); padding: 8px 20px; border-radius: 100px; font-size: .82rem; font-weight: 600; cursor: pointer; transition: var(--t); font-family: inherit; }
.filter-btn.active, .filter-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* COURSES */
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.course-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-sub); transition: var(--t); }
.course-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.course-card.hidden { display: none; }
.course-image { position: relative; height: 180px; }
.course-img { height: 100%; }
.course-badge { position: absolute; top: 10px; left: 10px; color: #fff; font-size: .65rem; font-weight: 700; padding: 3px 10px; border-radius: 100px; letter-spacing: .3px; }
.course-overlay { position: absolute; inset: 0; background: rgba(79,70,229,0.75); opacity: 0; display: flex; align-items: center; justify-content: center; transition: opacity var(--t); }
.course-card:hover .course-overlay { opacity: 1; }
.course-body { padding: 18px; }
.course-meta-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.course-cat { font-size: .68rem; font-weight: 700; color: var(--primary); background: rgba(var(--primary-rgb),0.08); padding: 3px 8px; border-radius: 100px; }
.course-level { font-size: .68rem; color: var(--text-dim); }
.course-body h3 { font-size: .92rem; font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 8px; }
.course-instructor { display: flex; align-items: center; gap: 5px; font-size: .78rem; color: var(--text-muted); margin-bottom: 10px; }
.course-stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.course-stats span { display: flex; align-items: center; gap: 4px; font-size: .74rem; color: var(--text-muted); }
.course-rating { font-weight: 600; }
.star-fill-sm { fill: var(--accent); color: var(--accent); }
.course-price-row { display: flex; align-items: center; gap: 10px; padding-top: 10px; border-top: 1px solid var(--border-sub); }
.price-current { font-family: 'Bricolage Grotesque', sans-serif; font-size: 1.2rem; font-weight: 800; color: var(--primary); }
.price-old { font-size: .82rem; color: var(--text-dim); text-decoration: line-through; }
.view-all-wrap { text-align: center; margin-top: 40px; }

/* FEATURES */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-item { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07); border-radius: var(--radius); padding: 28px; transition: var(--t); }
.feature-item:hover { background: rgba(255,255,255,0.07); }
.feature-icon { width: 48px; height: 48px; background: rgba(var(--primary-rgb),0.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #a5b4fc; margin-bottom: 16px; }
.feature-icon svg { width: 22px; height: 22px; }
.feature-item h3 { font-size: .95rem; font-weight: 700; color: #e8e6ff; margin-bottom: 8px; }
.feature-item p { font-size: .83rem; color: rgba(232,230,255,0.5); line-height: 1.7; }

/* INSTRUCTORS */
.instructors-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.instructor-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-sub); transition: var(--t); }
.instructor-card:hover { box-shadow: var(--shadow-md); border-color: var(--border); }
.instructor-img { height: 220px; }
.instructor-body { padding: 18px; }
.instructor-body h3 { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.instructor-role { font-size: .78rem; color: var(--text-muted); margin-bottom: 12px; }
.instructor-stats { display: flex; gap: 12px; flex-wrap: wrap; }
.instructor-stats span { display: flex; align-items: center; gap: 4px; font-size: .74rem; color: var(--text-muted); }

/* PRICING */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card { background: #fff; border: 1.5px solid var(--border-sub); border-radius: var(--radius-lg); padding: 28px; position: relative; transition: var(--t); }
.pricing-card--featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), var(--shadow-md); }
.plan-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: .65rem; font-weight: 800; padding: 4px 14px; border-radius: 100px; white-space: nowrap; }
.plan-name { font-size: .7rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 8px; flex-wrap: wrap; }
.plan-amount { font-family: 'Bricolage Grotesque', sans-serif; font-size: 2.4rem; font-weight: 800; color: var(--text); line-height: 1; }
.plan-per { font-size: .8rem; color: var(--text-dim); }
.plan-desc { font-size: .82rem; color: var(--text-muted); margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border-sub); }
.plan-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.plan-features li { display: flex; align-items: flex-start; gap: 8px; font-size: .82rem; color: var(--text); }
.check-icon { color: var(--green); flex-shrink: 0; margin-top: 2px; }
.guarantee-note { display: flex; align-items: center; justify-content: center; gap: 6px; text-align: center; font-size: .84rem; color: var(--text-muted); margin-top: 24px; }
.guarantee-note svg { color: var(--green); }

/* TESTIMONIALS */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card { background: #fff; border: 1.5px solid var(--border-sub); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-sm); }
.testi-stars { display: flex; gap: 3px; margin-bottom: 12px; }
.star-icon { width: 13px; height: 13px; fill: var(--accent); color: var(--accent); }
.testi-card blockquote { font-size: .88rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 20px; font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar { width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0; }
.testi-author strong { display: block; font-size: .88rem; color: var(--text); }
.testi-author span { font-size: .76rem; color: var(--text-dim); }

/* CTA BANNER */
.cta-banner { background: linear-gradient(135deg, var(--primary), #7c3aed); padding: 80px 0; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-family: 'Bricolage Grotesque', sans-serif; font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-inner p { font-size: .95rem; color: rgba(255,255,255,0.75); margin-bottom: 28px; }

/* FOOTER */
.footer { background: var(--bg-dark); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-logo { font-family: 'Bricolage Grotesque', sans-serif; font-size: 1.4rem; font-weight: 800; color: #a5b4fc; margin-bottom: 10px; }
.footer-brand p { font-size: .84rem; color: rgba(255,255,255,0.35); margin-bottom: 18px; }
.footer-social { display: flex; gap: 8px; }
.social-link { width: 34px; height: 34px; background: rgba(255,255,255,0.06); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.3); transition: var(--t); }
.social-link svg { width: 15px; height: 15px; }
.social-link:hover { background: var(--primary); color: #fff; }
.footer-col h4 { font-size: .7rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,0.25); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: .83rem; color: rgba(255,255,255,0.4); transition: color var(--t); }
.footer-col ul a:hover { color: rgba(255,255,255,0.8); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; }
.footer-bottom p { font-size: .76rem; color: rgba(255,255,255,0.2); }
.footer-legal { display: flex; gap: 16px; }
.footer-legal a { font-size: .76rem; color: rgba(255,255,255,0.2); transition: color var(--t); }
.footer-legal a:hover { color: rgba(255,255,255,0.5); }

.back-to-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; background: var(--primary); color: #fff; border: none; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; transform: translateY(10px); transition: var(--t); z-index: 80; }
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top svg { width: 18px; height: 18px; }

.icon-xs { width: 13px; height: 13px; }
.icon-sm { width: 18px; height: 18px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-media { display: none; }
  .cat-grid { grid-template-columns: repeat(4, 1fr); }
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .instructors-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-right { display: none; }
  .hamburger { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 66px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border-sub); padding: 20px 24px; gap: 14px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid, .testi-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .instructors-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .stat-inner { flex-wrap: wrap; }
  .stat-item { flex: 50%; padding: 12px; }
  .stat-item:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-btns { flex-direction: column; }
}
@media (max-width: 480px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .instructors-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}