/* ============================================================
   ilearn — Public Stylesheet
   ============================================================ */

:root {
  --primary:      #1a56db;
  --primary-dark: #1e40af;
  --primary-light:#eff6ff;
  --accent:       #f59e0b;
  --accent-dark:  #d97706;
  --dark:         #111827;
  --text:         #374151;
  --muted:        #6b7280;
  --border:       #e5e7eb;
  --light:        #f9fafb;
  --white:        #ffffff;
  --success:      #059669;
  --danger:       #dc2626;
  --radius:       10px;
  --radius-lg:    16px;
  --shadow:       0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg:    0 8px 32px rgba(0,0,0,.12);
  --transition:   .2s ease;
  --font:         'Inter', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--white); line-height: 1.6; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

/* ── Container ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Sections ── */
.section        { padding: 80px 0; }
.section-sm     { padding: 48px 0; }
.alt-bg         { background: var(--light); }

.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag    { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; margin-bottom: 12px; }
.section-header h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--dark); margin-bottom: 14px; }
.section-header p  { color: var(--muted); font-size: 1.05rem; }
.section-cta    { text-align: center; margin-top: 48px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 22px; border-radius: var(--radius); font-size: .95rem; font-weight: 600; cursor: pointer; border: 2px solid transparent; transition: all var(--transition); text-decoration: none; white-space: nowrap; }
.btn-primary     { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); text-decoration: none; }
.btn-outline     { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); text-decoration: none; }
.btn-white       { background: var(--white); color: var(--primary); border-color: var(--white); }
.btn-white:hover { background: var(--primary-light); text-decoration: none; }
.btn-outline-white { background: transparent; color: var(--white); border-color: rgba(255,255,255,.7); }
.btn-outline-white:hover { background: rgba(255,255,255,.15); text-decoration: none; }
.btn-sm  { padding: 6px 14px; font-size: .85rem; }
.btn-lg  { padding: 14px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; display: flex; }

/* ── Logo ── */
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 1.3rem; color: var(--dark); }
.logo:hover { text-decoration: none; color: var(--dark); }
.logo-icon { width: 36px; height: 36px; background: var(--primary); color: var(--white); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 900; font-style: italic; }
.logo-text { color: var(--dark); }
.site-logo-img  { height: 48px; width: auto; display: block; }
.footer-logo-img { height: 42px; width: auto; margin-bottom: 4px; }
.logo:hover .site-logo-img { opacity: .85; }

/* ── Header ── */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--white); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { padding: 7px 13px; border-radius: 8px; font-size: .9rem; font-weight: 500; color: var(--text); transition: all var(--transition); }
.main-nav a:hover, .main-nav a.active { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.main-nav .nav-cta { margin-left: 8px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: all .3s; }

/* ── Hero Slider ── */
.hero-section { position: relative; min-height: 580px; }
.hero-slider  { position: relative; min-height: 580px; overflow: hidden; }
.hero-slide   { position: absolute; inset: 0; background: linear-gradient(135deg, #0f2d6b 0%, #1a56db 60%, #3b82f6 100%); background-size: cover; background-position: center; opacity: 0; transition: opacity .6s; display: flex; align-items: center; }
.hero-slide.active { opacity: 1; position: relative; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(10,20,60,.82) 0%, rgba(10,20,60,.4) 100%); }
.hero-content { position: relative; z-index: 1; }
.hero-text    { max-width: 640px; color: var(--white); padding: 80px 0; }
.hero-text h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.18; margin-bottom: 20px; }
.hero-text p  { font-size: 1.15rem; opacity: .9; margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-default { position: relative; min-height: 580px; display: flex; align-items: center; }

/* Slider controls */
.slider-dots { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 5; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.45); border: none; cursor: pointer; transition: all .3s; }
.dot.active { background: var(--white); transform: scale(1.3); }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.2); border: none; color: var(--white); width: 46px; height: 46px; border-radius: 50%; cursor: pointer; font-size: 1.2rem; z-index: 5; transition: background .2s; }
.slider-arrow:hover { background: rgba(255,255,255,.35); }
.slider-arrow.prev { left: 24px; }
.slider-arrow.next { right: 24px; }

/* ── Stats ── */
.stats-section { background: var(--white); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; }
.stat-card { padding: 32px 20px; border-right: 1px solid var(--border); }
.stat-card:last-child { border-right: none; }
.stat-number { display: block; font-size: 2.4rem; font-weight: 800; color: var(--primary); line-height: 1; }
.stat-label  { display: block; font-size: .9rem; color: var(--muted); margin-top: 6px; }

/* ── Categories ── */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.category-card { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 28px 24px; text-decoration: none; color: var(--text); transition: all var(--transition); display: block; }
.category-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-3px); text-decoration: none; }
.cat-icon { width: 52px; height: 52px; background: var(--primary-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.cat-icon svg { width: 26px; height: 26px; color: var(--primary); }
.category-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.category-card p  { font-size: .875rem; color: var(--muted); line-height: 1.5; margin-bottom: 14px; }
.cat-link { font-size: .875rem; font-weight: 600; color: var(--primary); }

/* ── Course Cards ── */
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.courses-grid.three-col { grid-template-columns: repeat(3, 1fr); }
.course-card { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; }
.course-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.course-thumb { position: relative; display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--light); }
.course-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.course-card:hover .course-thumb img { transform: scale(1.05); }
.course-level { position: absolute; top: 12px; left: 12px; background: rgba(0,0,0,.65); color: var(--white); font-size: .75rem; font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.course-badge { position: absolute; top: 12px; right: 12px; background: var(--accent); color: var(--white); font-size: .75rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.course-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.course-cat  { font-size: .78rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .04em; }
.course-body h3 { font-size: 1rem; font-weight: 700; color: var(--dark); line-height: 1.4; }
.course-body h3 a { color: inherit; }
.course-body h3 a:hover { color: var(--primary); text-decoration: none; }
.course-body p { font-size: .875rem; color: var(--muted); flex: 1; }
.course-meta { display: flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--muted); flex-wrap: wrap; }
.meta-sep { color: var(--border); }
.course-instructor { font-size: .82rem; color: var(--muted); }
.course-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border); }
.course-price { font-size: 1.15rem; font-weight: 800; color: var(--dark); }

/* Stars */
.stars { color: var(--accent); letter-spacing: 1px; font-size: .9rem; }
.star.filled { color: var(--accent); }
.star       { color: #d1d5db; }

/* ── Why Section ── */
.why-grid    { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.why-copy .section-tag { text-align: left; }
.why-copy h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: var(--dark); margin: 12px 0 16px; }
.why-copy p  { color: var(--muted); margin-bottom: 24px; }
.why-list    { margin: 0 0 32px; display: flex; flex-direction: column; gap: 12px; }
.why-list li { display: flex; align-items: center; gap: 10px; font-size: .95rem; }
.check-icon  { flex-shrink: 0; width: 22px; height: 22px; background: #dcfce7; color: var(--success); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; }
.why-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature-card { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 18px; display: flex; gap: 14px; align-items: flex-start; }
.feature-dot  { flex-shrink: 0; width: 10px; height: 10px; background: var(--primary); border-radius: 50%; margin-top: 6px; }
.feature-card h4 { font-size: .9rem; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.feature-card p  { font-size: .82rem; color: var(--muted); }

/* ── Testimonials ── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card  { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.testimonial-stars { margin-bottom: 14px; color: var(--accent); font-size: 1.1rem; letter-spacing: 2px; }
.testimonial-text  { font-size: .95rem; color: var(--text); line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-photo { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.author-initials { width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.testimonial-author strong { display: block; font-size: .9rem; color: var(--dark); }
.testimonial-author span  { display: block; font-size: .8rem; color: var(--muted); }

/* ── Blog Cards ── */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-grid.three-col { grid-template-columns: repeat(3, 1fr); }
.blog-card { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); }
.blog-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.blog-thumb { display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--light); position: relative; }
.blog-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.blog-card:hover .blog-thumb img { transform: scale(1.05); }
.featured-badge { position: absolute; top: 12px; left: 12px; background: var(--primary); color: var(--white); font-size: .75rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.blog-body { padding: 22px; }
.blog-cat  { font-size: .78rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .04em; display: block; margin-bottom: 8px; }
.blog-body h2, .blog-body h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; line-height: 1.4; }
.blog-body h2 a, .blog-body h3 a { color: inherit; }
.blog-body h2 a:hover, .blog-body h3 a:hover { color: var(--primary); text-decoration: none; }
.blog-body p { font-size: .875rem; color: var(--muted); line-height: 1.6; margin-bottom: 14px; }
.blog-meta { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--muted); margin-bottom: 14px; }
.read-more { font-size: .875rem; font-weight: 600; color: var(--primary); }

/* ── Vendor Logo Cards ── */
.vendor-logo-wrap { min-height: 56px; display: flex; align-items: center; margin-bottom: 16px; }
.vendor-logo-img  { max-height: 52px; max-width: 140px; width: auto; object-fit: contain; }

/* ── Payment Methods ── */
.payment-section  { padding: 72px 0; }
.payment-grid     { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.payment-card     { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 36px 24px 30px; text-align: center; transition: all var(--transition); }
.payment-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.payment-icon     { width: 92px; height: 92px; border-radius: 22px; margin: 0 auto 22px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.payment-icon svg { display: block; width: 56px; height: 56px; flex-shrink: 0; }
.payment-name     { display: block; font-size: 1.1rem; font-weight: 800; color: var(--dark); margin-bottom: 14px; letter-spacing: -.01em; }
.payment-brands   { display: flex; align-items: center; justify-content: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; min-height: 28px; }
.brand-badge      { display: inline-flex; align-items: center; gap: 4px; padding: 5px 11px; border-radius: 6px; font-size: .75rem; font-weight: 800; letter-spacing: .05em; line-height: 1; }
.payment-desc     { font-size: .85rem; color: var(--muted); line-height: 1.55; margin: 0; }
.payment-note     { text-align: center; margin-top: 44px; font-size: .9rem; color: var(--muted); }
.payment-note a   { color: var(--primary); font-weight: 600; }

/* ── CTA Banner ── */
.cta-banner { background: linear-gradient(135deg, #0f2d6b 0%, #1a56db 100%); padding: 80px 0; }
.cta-inner  { text-align: center; color: var(--white); }
.cta-inner h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 16px; }
.cta-inner p  { font-size: 1.1rem; opacity: .85; margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-actions  { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
.site-footer { background: var(--dark); color: #9ca3af; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand .logo-text { color: var(--white); }
.footer-brand p { font-size: .875rem; line-height: 1.7; margin-top: 12px; }
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-links a { width: 36px; height: 36px; background: #374151; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #9ca3af; transition: all var(--transition); }
.social-links a:hover { background: var(--primary); color: var(--white); }
.social-links svg { width: 16px; height: 16px; }
.footer-col h4 { color: var(--white); font-size: .875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 18px; }
.footer-col a, .footer-col span { display: block; font-size: .875rem; color: #9ca3af; margin-bottom: 10px; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); text-decoration: none; }
.footer-bottom { border-top: 1px solid #1f2937; padding: 20px 0; text-align: center; font-size: .82rem; }

/* ── Page Hero ── */
.page-hero { background: linear-gradient(135deg, #0f2d6b 0%, #1a56db 100%); color: var(--white); padding: 72px 0; text-align: center; }
.page-hero .section-tag { background: rgba(255,255,255,.15); color: var(--white); }
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; margin: 14px 0 16px; }
.page-hero p  { font-size: 1.1rem; opacity: .85; max-width: 560px; margin: 0 auto; }

/* ── Breadcrumb ── */
.breadcrumb { font-size: .85rem; opacity: .75; margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: var(--white); }

/* ── Courses Layout (listing page) ── */
.courses-layout { display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.courses-sidebar { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 24px; position: sticky; top: 88px; }
.filter-block { margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 20px; }
.filter-block:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
.filter-block h3 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--dark); margin-bottom: 12px; }
.filter-input { width: 100%; padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 8px; font-size: .9rem; outline: none; }
.filter-input:focus { border-color: var(--primary); }
.filter-option { display: flex; align-items: center; gap: 8px; font-size: .9rem; cursor: pointer; padding: 4px 0; }
.filter-option input { accent-color: var(--primary); }
.filter-clear { font-size: .8rem; color: var(--danger); display: block; margin-top: 8px; }
.btn-block { width: 100%; display: flex; }
.courses-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.results-count { font-size: .9rem; color: var(--muted); }

/* ── Course Detail ── */
.course-hero { background: linear-gradient(135deg, #0f2d6b 0%, #1a56db 100%); padding: 56px 0; }
.course-hero-grid { display: grid; grid-template-columns: 1fr 400px; gap: 48px; align-items: start; color: var(--white); }
.course-hero-info h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 800; margin: 12px 0 16px; }
.course-short-desc { font-size: 1.05rem; opacity: .85; margin-bottom: 20px; }
.course-hero-info .course-meta { color: rgba(255,255,255,.8); margin-bottom: 12px; }
.course-by { font-size: .9rem; opacity: .75; }
.course-hero-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); color: var(--text); }
.course-hero-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.course-card-body { padding: 24px; }
.course-price-big { font-size: 2rem; font-weight: 800; color: var(--dark); margin-bottom: 16px; }
.course-card-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; font-size: .85rem; color: var(--muted); }
.enroll-form { display: flex; flex-direction: column; gap: 10px; }
.enroll-form input, .enroll-form textarea { padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px; font-size: .9rem; width: 100%; }
.enroll-form input:focus, .enroll-form textarea:focus { outline: none; border-color: var(--primary); }
.guarantee { text-align: center; font-size: .8rem; color: var(--muted); margin-top: 10px; }
.notice-success { background: #f0fdf4; border: 1px solid #86efac; color: #166534; padding: 12px 16px; border-radius: 8px; margin-bottom: 12px; font-size: .9rem; }
.notice-error   { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; padding: 12px 16px; border-radius: 8px; margin-bottom: 12px; font-size: .9rem; }

.course-detail-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.course-detail-main .course-description { margin-bottom: 40px; }
.course-description h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 20px; color: var(--dark); }
.instructor-block { background: var(--light); border-radius: var(--radius-lg); padding: 28px; margin-top: 32px; }
.instructor-block h2 { font-size: 1.2rem; font-weight: 800; margin-bottom: 20px; color: var(--dark); }
.instructor-profile { display: flex; gap: 20px; }
.instructor-photo { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.instructor-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; font-weight: 700; flex-shrink: 0; }
.instructor-title { color: var(--primary); font-size: .9rem; margin-bottom: 8px; }
.course-detail-sidebar .sidebar-card { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px; position: sticky; top: 88px; }
.sidebar-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 16px; }
.highlights-list { display: flex; flex-direction: column; gap: 10px; font-size: .9rem; color: var(--text); margin-bottom: 20px; }
.highlights-list li { display: flex; align-items: center; gap: 8px; }

/* ── Content Area (blog/about) ── */
.content-area { line-height: 1.8; color: var(--text); }
.content-area h2, .content-area h3 { color: var(--dark); font-weight: 700; margin: 28px 0 14px; }
.content-area h2 { font-size: 1.5rem; }
.content-area h3 { font-size: 1.2rem; }
.content-area p  { margin-bottom: 16px; }
.content-area ul { margin: 0 0 16px 20px; list-style: disc; }
.content-area li { margin-bottom: 8px; }
.content-area strong { color: var(--dark); }

/* ── About Page ── */
.about-layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; }
.about-stats  { display: flex; flex-direction: column; gap: 20px; }
.about-stat   { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 20px 24px; text-align: center; }
.about-stat strong { display: block; font-size: 2rem; font-weight: 800; color: var(--primary); }
.about-stat span   { font-size: .9rem; color: var(--muted); }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card  { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 28px 24px; }
.value-dot   { width: 12px; height: 12px; background: var(--primary); border-radius: 50%; margin-bottom: 16px; }
.value-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.value-card p  { font-size: .875rem; color: var(--muted); }

/* ── Team ── */
.team-grid    { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.wide-grid    { grid-template-columns: repeat(3, 1fr); }
.team-card    { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 28px 24px; text-align: center; transition: all var(--transition); }
.team-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.team-photo   { width: 90px; height: 90px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; }
.team-avatar  { width: 90px; height: 90px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; font-weight: 700; margin: 0 auto 16px; }
.instructor-avatar { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.team-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); }
.team-position { font-size: .85rem; color: var(--primary); display: block; margin: 6px 0 12px; }
.team-card p  { font-size: .85rem; color: var(--muted); line-height: 1.6; }
.team-linkedin, .team-link { font-size: .82rem; color: var(--primary); font-weight: 600; }
.team-links   { display: flex; gap: 12px; justify-content: center; margin-top: 14px; }
.instructor-courses { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: .78rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; margin-top: 10px; }

/* ── FAQ Page ── */
.faq-layout { max-width: 820px; margin: 0 auto; }
.faq-nav    { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.cat-pill   { display: inline-block; padding: 6px 16px; border-radius: 999px; font-size: .85rem; font-weight: 600; border: 1.5px solid var(--border); color: var(--muted); transition: all var(--transition); }
.cat-pill:hover, .cat-pill.active { background: var(--primary); color: var(--white); border-color: var(--primary); text-decoration: none; }
.faq-group { margin-bottom: 40px; }
.faq-category-title { font-size: 1.3rem; font-weight: 800; color: var(--dark); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); }
.faq-list   { display: flex; flex-direction: column; gap: 8px; }
.faq-item   { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-item summary { padding: 18px 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: var(--dark); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item[open] summary { color: var(--primary); }
.faq-arrow  { transition: transform .3s; color: var(--muted); }
.faq-item[open] .faq-arrow { transform: rotate(180deg); }
.faq-answer { padding: 0 20px 20px; }
.faq-answer p { font-size: .95rem; color: var(--muted); line-height: 1.7; }
.faq-cta    { margin-top: 48px; }
.faq-cta-card { background: var(--primary-light); border: none; border-radius: var(--radius-lg); padding: 36px; text-align: center; }
.faq-cta-card h3 { font-size: 1.2rem; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.faq-cta-card p  { color: var(--muted); margin-bottom: 20px; }

/* ── Contact Page ── */
.contact-layout     { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-info h2    { font-size: 1.6rem; font-weight: 800; color: var(--dark); margin-bottom: 14px; }
.contact-info > p   { color: var(--muted); margin-bottom: 28px; }
.contact-cards      { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
.contact-card       { display: flex; gap: 16px; align-items: flex-start; background: var(--light); border-radius: var(--radius); padding: 16px 20px; }
.contact-icon       { font-size: 1.4rem; flex-shrink: 0; }
.contact-card h4    { font-size: .85rem; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 4px; }
.contact-card a, .contact-card p { font-size: .95rem; color: var(--dark); }
.office-hours h4    { font-size: .85rem; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 10px; }
.office-hours p     { font-size: .9rem; color: var(--text); margin-bottom: 4px; }
.form-card          { background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 36px; }
.form-card h2       { font-size: 1.4rem; font-weight: 800; color: var(--dark); margin-bottom: 24px; }
.contact-form       { display: flex; flex-direction: column; gap: 16px; }
.form-row           { display: flex; gap: 16px; }
.form-row.two-col > * { flex: 1; }
.form-group         { display: flex; flex-direction: column; gap: 6px; }
.form-group label   { font-size: .85rem; font-weight: 600; color: var(--dark); }
.form-group input, .form-group select, .form-group textarea { padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 8px; font-size: .95rem; width: 100%; background: var(--white); color: var(--text); font-family: var(--font); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { resize: vertical; }

/* ── Blog / Post Layout ── */
.blog-filter-bar { display: flex; flex-direction: column; gap: 16px; margin-bottom: 40px; }
.blog-search-form { display: flex; gap: 10px; max-width: 480px; }
.blog-search-form .filter-input { flex: 1; }
.blog-cats { display: flex; flex-wrap: wrap; gap: 8px; }

.post-hero   { background: linear-gradient(135deg, #0f2d6b 0%, #1a56db 100%); color: var(--white); padding: 64px 0; }
.post-hero .section-tag { background: rgba(255,255,255,.15); color: var(--white); }
.post-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin: 14px 0 20px; }
.post-meta    { display: flex; gap: 12px; align-items: center; font-size: .9rem; opacity: .8; }
.post-excerpt { font-size: 1.05rem; opacity: .85; margin-top: 16px; max-width: 640px; }

.post-layout  { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.post-content { min-width: 0; }
.post-featured-img { width: 100%; border-radius: var(--radius-lg); margin-bottom: 32px; }
.post-tags    { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; align-items: center; }
.tag          { background: var(--light); color: var(--muted); padding: 4px 12px; border-radius: 999px; font-size: .8rem; }
.post-share   { display: flex; align-items: center; gap: 16px; margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--border); }
.post-sidebar  { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 20px; }
.sidebar-cat-link { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .9rem; color: var(--text); }
.sidebar-cat-link:hover { color: var(--primary); }
.sidebar-cat-link span  { color: var(--muted); font-size: .82rem; }
.author-block  { display: flex; gap: 14px; align-items: center; }
.author-initials-lg { width: 52px; height: 52px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 700; flex-shrink: 0; }
.author-desc { font-size: .82rem; color: var(--muted); margin-top: 2px; }

/* ── Pagination ── */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 48px; flex-wrap: wrap; }
.page-btn   { padding: 8px 16px; border: 1.5px solid var(--border); border-radius: 8px; color: var(--text); font-size: .9rem; font-weight: 500; transition: all var(--transition); }
.page-btn:hover, .page-btn.active { background: var(--primary); color: var(--white); border-color: var(--primary); text-decoration: none; }

/* ── Misc ── */
.empty-state { text-align: center; padding: 64px 20px; color: var(--muted); }
.map-embed   { margin-top: 24px; border-radius: var(--radius); overflow: hidden; }
.map-embed iframe { width: 100%; border: none; }

/* ── Reveal Animation ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s, transform .6s; }
.reveal.visible { opacity: 1; transform: none; }

/* ══════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(4, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid  { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .course-hero-grid { grid-template-columns: 1fr; }
  .course-hero-card { max-width: 440px; }
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
}

@media (max-width: 768px) {
  .payment-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 56px 0; }
  .nav-toggle { display: flex; }
  .main-nav   { display: none; position: fixed; inset: 0; top: 68px; background: var(--white); flex-direction: column; align-items: stretch; padding: 24px; gap: 4px; overflow-y: auto; z-index: 99; border-top: 1px solid var(--border); }
  .main-nav.open { display: flex; }
  .main-nav a    { padding: 12px 16px; font-size: 1rem; }
  .main-nav .nav-cta { margin: 16px 0 0; text-align: center; }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .stat-card     { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-card:nth-child(even) { border-left: 1px solid var(--border); }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid  { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .blog-grid     { grid-template-columns: 1fr; }
  .team-grid     { grid-template-columns: repeat(2, 1fr); }
  .why-features  { grid-template-columns: 1fr; }
  .values-grid   { grid-template-columns: 1fr; }
  .about-layout  { grid-template-columns: 1fr; }
  .about-stats   { flex-direction: row; flex-wrap: wrap; }
  .about-stat    { flex: 1; min-width: 120px; }
  .contact-layout { grid-template-columns: 1fr; }
  .courses-layout { grid-template-columns: 1fr; }
  .courses-sidebar { position: static; }
  .form-row.two-col  { flex-direction: column; }
  .form-row.three-col { flex-direction: column; }
  .course-detail-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-text    { padding: 60px 0; }
}

@media (max-width: 480px) {
  .stats-grid  { grid-template-columns: 1fr; }
  .stat-card   { border-right: none; border-left: none; }
  .payment-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .team-grid   { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .cta-actions  { flex-direction: column; align-items: center; }
}