/* ============================================
   Elevator Educators - Redesigned 2026
   Modern, professional, conversion-optimized
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1a1a2e;
    background: #ffffff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- Variables --- */
:root {
    --navy: #0a1628;
    --navy-light: #132038;
    --blue: #2563eb;
    --blue-light: #3b82f6;
    --blue-glow: rgba(37, 99, 235, 0.15);
    --amber: #f59e0b;
    --amber-light: #fbbf24;
    --green: #10b981;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 25px -5px rgba(0,0,0,0.08), 0 4px 10px -6px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 50px -12px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition);
}
.nav.scrolled {
    box-shadow: var(--shadow);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-logo {
    width: 40px;
    height: 40px;
    background: var(--navy);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}
.nav-brand-name {
    font-weight: 700;
    font-size: 16px;
    color: var(--navy);
    display: block;
    line-height: 1.2;
}
.nav-brand-sub {
    font-size: 11px;
    color: var(--slate-500);
    display: block;
    letter-spacing: 0.02em;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--slate-600);
    transition: color var(--transition);
}
.nav-links a:hover {
    color: var(--navy);
}
.nav-cta {
    background: var(--blue);
    color: white !important;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600 !important;
    transition: all var(--transition) !important;
}
.nav-cta:hover {
    background: var(--blue-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: all 0.3s;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-weight: 600;
    font-size: 14px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--blue);
    color: white;
}
.btn-primary:hover {
    background: var(--blue-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.btn-outline {
    background: transparent;
    color: var(--blue);
    border: 1.5px solid var(--slate-200);
}
.btn-outline:hover {
    border-color: var(--blue);
    background: var(--blue-glow);
}
.btn-ghost {
    background: rgba(255,255,255,0.12);
    color: white;
    border: 1.5px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.4);
}
.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}
.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}
.btn-full { width: 100%; justify-content: center; }

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--navy) 0%, #162544 50%, #1a3a5c 100%);
    overflow: hidden;
    padding: 120px 0 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-bg::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 160%;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
}
.hero-content {
    position: relative;
    z-index: 1;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.12);
    color: var(--amber-light);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 100px;
    border: 1px solid rgba(245, 158, 11, 0.2);
    margin-bottom: 24px;
    letter-spacing: 0.03em;
}
.hero h1 {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 800;
    color: white;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero-highlight {
    background: linear-gradient(135deg, var(--blue-light), var(--amber-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--slate-300);
    max-width: 560px;
    line-height: 1.6;
    margin-bottom: 32px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}
.hero-stat-num {
    font-size: 20px;
    font-weight: 800;
    color: white;
    display: block;
    font-family: 'JetBrains Mono', monospace;
}
.hero-stat-label {
    font-size: 12px;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}
.hero-stat-divider {
    width: 1px;
    height: 36px;
    background: rgba(255,255,255,0.12);
}
.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--slate-400);
    animation: float 2s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Sections --- */
.section {
    padding: 96px 0;
}
.section-alt {
    background: var(--slate-50);
}
.section-dark {
    background: var(--navy);
    color: white;
}
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}
.section-tag-light {
    color: var(--amber-light);
}
.section-header h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    line-height: 1.15;
}
.section-header p {
    font-size: 17px;
    color: var(--slate-500);
    line-height: 1.6;
}

/* --- Services Grid --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.service-card {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    transition: all 0.3s ease;
}
.service-card:hover {
    border-color: var(--slate-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.service-card-featured {
    border-color: var(--blue);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.03) 0%, white 50%);
}
.service-card-featured:hover {
    border-color: var(--blue-light);
    box-shadow: 0 20px 50px -12px rgba(37, 99, 235, 0.15);
}
.service-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--slate-600);
    margin-bottom: 20px;
}
.service-icon-primary {
    background: var(--blue-glow);
    color: var(--blue);
}
.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--blue);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 100px;
    letter-spacing: 0.03em;
}
.service-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.service-card p {
    font-size: 14px;
    color: var(--slate-500);
    line-height: 1.6;
    margin-bottom: 20px;
}
.service-price {
    font-size: 28px;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 20px;
    font-family: 'JetBrains Mono', monospace;
}
.service-price span {
    font-size: 14px;
    font-weight: 500;
    color: var(--slate-400);
}

/* --- Steps --- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.step-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--slate-200);
    position: relative;
}
.step-num {
    font-size: 48px;
    font-weight: 900;
    color: var(--slate-100);
    font-family: 'JetBrains Mono', monospace;
    line-height: 1;
    margin-bottom: 16px;
}
.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}
.step-card p {
    font-size: 14px;
    color: var(--slate-500);
    line-height: 1.6;
}

/* --- Courses --- */
.courses-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}
.course-format {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 32px;
}
.course-format-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--slate-100);
}
.course-format-icon {
    width: 48px;
    height: 48px;
    background: var(--blue-glow);
    color: var(--blue);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.course-format-header h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 2px;
}
.course-format-header p {
    font-size: 14px;
    color: var(--slate-500);
}
.course-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--slate-50);
}
.course-detail:last-child {
    border-bottom: none;
}
.course-detail-label {
    font-size: 14px;
    color: var(--slate-500);
}
.course-detail-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--navy);
}
.course-price {
    color: var(--blue) !important;
    font-size: 16px !important;
    font-family: 'JetBrains Mono', monospace;
}
.course-special {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 24px;
}
.course-special h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}
.course-special p {
    font-size: 14px;
    color: var(--slate-500);
    line-height: 1.5;
}
.course-urgent {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.06), rgba(245, 158, 11, 0.02));
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.course-urgent svg {
    color: var(--amber);
    flex-shrink: 0;
}
.course-urgent strong {
    display: block;
    font-size: 15px;
    margin-bottom: 2px;
}
.course-urgent p {
    font-size: 14px;
    color: var(--slate-500);
    margin: 0;
}
.course-urgent .btn {
    flex-shrink: 0;
    margin-left: auto;
}

/* --- Tutorial Topics --- */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}
.topic-group {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 28px;
}
.topic-group h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--blue);
}
.topic-group li {
    font-size: 14px;
    color: var(--slate-600);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}
.topic-group li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--slate-300);
}
.topics-schedule {
    text-align: center;
}
.topics-schedule h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--slate-600);
    margin-bottom: 16px;
}
.schedule-tags {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.schedule-tag {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: 100px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--slate-600);
}

/* --- Elevatorology --- */
.elevatorology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}
.elev-card {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
}
.elev-card:hover {
    border-color: var(--slate-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.elev-card-mid {
    border-color: var(--blue);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.02) 0%, white 40%);
}
.elev-level {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--blue);
    margin-bottom: 8px;
}
.elev-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}
.elev-duration {
    font-size: 14px;
    color: var(--slate-400);
    font-weight: 500;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--slate-100);
}
.elev-card li {
    font-size: 14px;
    color: var(--slate-600);
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}
.elev-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue);
    opacity: 0.4;
}
.elev-note {
    text-align: center;
    font-size: 14px;
    color: var(--slate-500);
    font-style: italic;
}

/* --- FAQ --- */
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}
.faq-item[open] {
    border-color: var(--blue);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}
.faq-item summary {
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    color: var(--navy);
    transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 20px;
    font-weight: 400;
    color: var(--slate-400);
    transition: transform 0.2s;
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-item[open] summary::after {
    content: '\2212';
    color: var(--blue);
}
.faq-item summary:hover { color: var(--blue); }
.faq-answer {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--slate-600);
    line-height: 1.7;
}
.faq-answer ul {
    margin-top: 8px;
}
.faq-answer li {
    padding: 3px 0;
    padding-left: 16px;
    position: relative;
}
.faq-answer li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--slate-400);
}

/* --- About --- */
.about-layout {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 64px;
    align-items: start;
}
.about-content h2 {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    line-height: 1.15;
}
.about-mission {
    font-size: 16px;
    font-style: italic;
    color: var(--slate-600);
    border-left: 3px solid var(--blue);
    padding-left: 20px;
    margin-bottom: 20px;
    line-height: 1.7;
}
.about-content > p {
    font-size: 15px;
    color: var(--slate-500);
    margin-bottom: 24px;
    line-height: 1.6;
}
.about-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--slate-700);
}
.about-feature svg {
    color: var(--green);
    flex-shrink: 0;
}
.about-accreditation {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.accred-card {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
}
.accred-badge {
    color: var(--blue);
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}
.accred-card h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}
.accred-card p {
    font-size: 13px;
    color: var(--slate-500);
    line-height: 1.5;
}

/* --- Contact --- */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}
.section-dark .section-header h2,
.contact-info h2 {
    color: white;
}
.contact-info p {
    color: var(--slate-300);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 32px;
}
.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}
.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: var(--radius);
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    transition: all var(--transition);
}
.contact-method:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}
.contact-method-icon {
    width: 44px;
    height: 44px;
    background: rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-light);
    flex-shrink: 0;
}
.contact-method-label {
    font-size: 12px;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: block;
}
.contact-method-value {
    font-size: 14px;
    font-weight: 500;
    color: white;
    display: block;
}
.payment-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--slate-300);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.payment-methods {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}
.payment-method {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--slate-400);
}
.payment-note {
    font-size: 12px;
    color: var(--slate-500);
    margin-bottom: 0;
}

/* --- Contact Form --- */
.contact-form-wrap {
    background: white;
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-lg);
}
.contact-form h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 24px;
}
.form-group {
    margin-bottom: 18px;
}
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--slate-200);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 14px;
    color: var(--navy);
    background: white;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px var(--blue-glow);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}
.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}
.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* --- Footer --- */
.footer {
    background: var(--slate-900);
    color: var(--slate-400);
    padding: 56px 0 0;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .nav-brand {
    margin-bottom: 16px;
}
.footer-brand .nav-brand-name { color: white; }
.footer-brand .nav-logo { background: var(--blue); }
.footer-desc {
    font-size: 14px;
    line-height: 1.6;
    max-width: 280px;
}
.footer-links-group h4 {
    font-size: 13px;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 16px;
}
.footer-links-group a {
    display: block;
    font-size: 14px;
    color: var(--slate-400);
    padding: 4px 0;
    transition: color var(--transition);
}
.footer-links-group a:hover {
    color: white;
}
.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: var(--slate-500);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 0;
        border-bottom: 1px solid var(--slate-200);
        box-shadow: var(--shadow-md);
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links a {
        padding: 12px 0;
        border-bottom: 1px solid var(--slate-100);
        width: 100%;
    }
    .nav-links a:last-child {
        border-bottom: none;
        margin-top: 8px;
        text-align: center;
    }
    .nav-cta {
        display: block;
        text-align: center !important;
    }
    .nav-toggle {
        display: flex;
    }
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    .hero-stats {
        gap: 20px;
    }
    .hero-stat-divider {
        display: none;
    }
    .section {
        padding: 64px 0;
    }
    .section-header {
        margin-bottom: 36px;
    }
    .course-special {
        flex-direction: column;
        align-items: flex-start;
    }
    .course-urgent {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    .course-urgent .btn {
        margin-left: 0;
        margin-top: 12px;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .payment-methods {
        flex-direction: column;
        gap: 8px;
    }
}