/* ==========================================
   CSS Reset & Variables
   ========================================== */
:root {
    /* Color Palette */
    --bg-dark: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --primary-orange: #ff6b00;
    --primary-orange-hover: #e05e00;
    --accent-blue: #0077b6;
    --accent-blue-glow: rgba(0, 119, 182, 0.2);
    --border-color: rgba(15, 23, 42, 0.08);
    --gradient-primary: linear-gradient(135deg, var(--primary-orange) 0%, var(--accent-blue) 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    
    /* Fonts */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Outfit', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.grid {
    display: grid;
    gap: 30px;
}

/* ==========================================
   Typography & Accents
   ========================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.5px;
}

h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

h2 {
    font-size: 2.2rem;
    line-height: 1.3;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.orange-text {
    color: var(--primary-orange);
}

.text-center {
    text-align: center;
}

.divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 15px auto;
    border-radius: 2px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-orange);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.4);
}

.btn-primary:hover {
    background: var(--primary-orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.6);
}

.btn-xl {
    padding: 16px 36px;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-ticket-select {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-ticket-select:hover {
    background: var(--text-primary);
    color: var(--bg-card);
    transform: translateY(-2px);
}

/* ==========================================
   Header / Navigation
   ========================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrapper {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    text-decoration: none;
}

.logo-title {
    font-size: 1.15rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-primary);
    letter-spacing: 0.2px;
    transition: font-size 0.3s ease;
    font-family: var(--font-heading);
}

.logo-subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-orange);
    letter-spacing: 1px;
    margin-top: 3px;
    transition: font-size 0.3s ease;
    font-family: var(--font-heading);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero-section {
    padding-top: 150px;
    padding-bottom: 80px;
    position: relative;
    background: radial-gradient(circle at 10% 20%, rgba(255, 107, 0, 0.08) 0%, transparent 45%),
                radial-gradient(circle at 90% 80%, rgba(0, 229, 255, 0.08) 0%, transparent 45%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 50px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 107, 0, 0.15);
    border: 1px solid var(--primary-orange);
    color: var(--primary-orange);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.accent-badge {
    background: rgba(0, 229, 255, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.hero-subtext {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
}

/* Countdown Timer Styling */
.countdown-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px 25px;
    display: inline-block;
    margin-bottom: 30px;
}

.countdown-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.timer {
    display: flex;
    align-items: center;
    gap: 15px;
}

.timer-item {
    text-align: center;
}

.timer-item span {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--accent-blue-glow);
}

.timer-item p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.timer-colon {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--border-color);
    margin-top: -15px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.price-strike {
    font-size: 1rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

/* Hero Graphic & Image floating effect */
.hero-graphic .image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.hero-graphic img {
    width: 100%;
    display: block;
    border-radius: 20px;
}

/* ==========================================
   Pain Section (Sát muối vào vết thương)
   ========================================== */
.pain-section {
    padding: 80px 0;
    background: #ffffff;
}

.pain-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 50px;
}

.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 35px 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
    border-color: var(--primary-orange);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.pain-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.pain-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================
   Consequence Section (Hậu quả trì hoãn)
   ========================================== */
.consequence-section {
    padding: 60px 0;
    background: var(--bg-dark);
}

.consequence-box {
    background: linear-gradient(135deg, rgba(212, 18, 18, 0.03) 0%, #ffffff 100%);
    border: 1px solid rgba(212, 18, 18, 0.2);
    border-radius: 20px;
    padding: 40px;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.04);
}

.consequence-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.warning-icon {
    font-size: 2rem;
}

.consequence-header h2 {
    color: #ff3333;
    font-size: 1.8rem;
}

.highlight-quote {
    font-size: 1.25rem;
    font-weight: 600;
    font-style: italic;
    color: #c53030;
    border-left: 4px solid #ff3333;
    padding-left: 20px;
    margin-bottom: 20px;
}

.desc-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ==========================================
   Solution Section (Giải pháp)
   ========================================== */
.solution-section {
    padding: 80px 0;
    background: #ffffff;
}

.solution-benefits {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 50px;
}

.benefit-item {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    position: relative;
}

.benefit-num {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(255, 107, 0, 0.1);
    position: absolute;
    top: 20px;
    right: 20px;
    line-height: 1;
}

.benefit-item h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--accent-blue);
}

.benefit-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================
   Science Section
   ========================================== */
.science-section {
    padding: 80px 0;
}

.science-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
    gap: 60px;
}

.science-visual {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.brain-connection {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    width: 100%;
}

.node {
    padding: 15px 30px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: 80%;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.node-logic {
    background: rgba(0, 229, 255, 0.1);
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
}

.node-lizard {
    background: rgba(255, 107, 0, 0.1);
    border: 2px solid var(--primary-orange);
    color: var(--primary-orange);
}

.node-vs {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-secondary);
    position: relative;
}

.node-vs::before, .node-vs::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 20px;
    background: var(--border-color);
    left: 50%;
    transform: translateX(-50%);
}

.node-vs::before {
    top: -25px;
}

.node-vs::after {
    bottom: -25px;
}

.science-content h2 {
    margin-bottom: 25px;
}

.science-points {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.science-point {
    display: flex;
    gap: 20px;
}

.point-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-blue);
}

.science-point h4 {
    font-size: 1.15rem;
    margin-bottom: 5px;
}

.science-point p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================
   Curriculum Section (Timeline)
   ========================================== */
.curriculum-section {
    padding: 80px 0;
    background: var(--bg-dark);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 50px auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-block {
    position: relative;
    width: 50%;
    padding: 0 40px;
    margin-bottom: 40px;
}

.block-left {
    left: 0;
}

.block-right {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    top: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-dark);
    border: 3px solid var(--accent-blue);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    z-index: 10;
}

.block-left .timeline-dot {
    right: -20px;
}

.block-right .timeline-dot {
    left: -20px;
    border-color: var(--primary-orange);
    color: var(--primary-orange);
}

.timeline-content-box {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.day-label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--accent-blue);
    display: block;
    margin-bottom: 10px;
}

.block-right .day-label {
    color: var(--primary-orange);
}

.timeline-content-box h3 {
    font-size: 1.35rem;
    margin-bottom: 10px;
}

.curriculum-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.curriculum-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.curriculum-list li {
    font-size: 0.9rem;
    position: relative;
    padding-left: 20px;
}

.curriculum-list li::before {
    content: '⚡';
    position: absolute;
    left: 0;
    color: var(--primary-orange);
}

/* ==========================================
   Filtering Section (Đối tượng)
   ========================================== */
.filtering-section {
    padding: 60px 0;
    background: var(--bg-dark);
}

.filter-grid {
    grid-template-columns: 1fr 1fr;
}

.filter-box {
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.filter-for {
    background: rgba(0, 229, 255, 0.03);
    border-color: rgba(0, 229, 255, 0.15);
}

.filter-for h3 {
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.filter-not {
    background: rgba(255, 107, 0, 0.03);
    border-color: rgba(255, 107, 0, 0.15);
}

.filter-not h3 {
    color: var(--primary-orange);
    margin-bottom: 20px;
}

.filter-box ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.filter-box li {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================
   Ticket Classes Section (3 Hạng Vé)
   ========================================== */
.ticket-classes-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 50px;
    align-items: stretch;
}

.ticket-class-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
    position: relative;
}

.ticket-class-card.featured {
    border: 2px solid var(--primary-orange);
    box-shadow: 0 10px 30px rgba(255, 107, 0, 0.15);
    transform: scale(1.03);
    z-index: 2;
}

.badge-featured {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-orange);
    color: var(--text-primary);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.ticket-class-header {
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 25px;
    margin-bottom: 25px;
}

.ticket-class-header h4 {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.class-price {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.featured .class-price {
    color: var(--primary-orange);
    text-shadow: 0 0 10px rgba(255, 107, 0, 0.3);
}

.price-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.ticket-class-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ticket-class-body ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 35px;
}

.ticket-class-body li {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ==========================================
   Bonuses Section (Quà tặng)
   ========================================== */
.bonuses-section {
    padding: 80px 0;
    background: var(--bg-dark);
}

.bonuses-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 50px;
}

.bonus-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    position: relative;
}

.bonus-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 229, 255, 0.15);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
}

.bonus-card h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    margin-top: 15px;
}

.bonus-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================
   Guarantee Section (Cam kết)
   ========================================== */
.guarantee-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    border-top: 1px solid var(--border-color);
}

.guarantee-badge {
    font-size: 4rem;
    margin-bottom: 20px;
}

.guarantee-text {
    font-size: 1.15rem;
    max-width: 800px;
    margin: 30px auto 0;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==========================================
   Coach Section
   ========================================== */
.coach-section {
    padding: 80px 0;
}

.coach-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 60px;
}

.coach-image-wrapper {
    position: relative;
    display: inline-block;
}

.coach-image-backdrop {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-blue);
    border-radius: 20px;
    z-index: 1;
}

.coach-img {
    width: 100%;
    border-radius: 20px;
    display: block;
    position: relative;
    z-index: 2;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.coach-content h2 {
    margin-bottom: 25px;
}

.coach-intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.achievements {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.achievement {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 12px;
}

.ach-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-blue);
    display: block;
    margin-bottom: 5px;
}

.ach-num span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-left: 3px;
}

.achievement p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==========================================
   Testimonials Section
   ========================================== */
.testimonials-section {
    padding: 80px 0;
    background: #ffffff;
}

.testimonials-grid {
    grid-template-columns: 1fr 1fr;
    margin-top: 50px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 16px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 6rem;
    color: rgba(15, 23, 42, 0.03);
    position: absolute;
    top: 0;
    left: 20px;
    font-family: Georgia, serif;
    line-height: 1;
}

.test-text {
    font-size: 1rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 25px;
    position: relative;
    z-index: 2;
}

.test-user {
    display: flex;
    flex-direction: column;
}

.test-user strong {
    color: var(--text-primary);
}

.test-user span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================
   Activity Proof Section (Hình thực tế)
   ========================================== */
.activity-proof-section {
    padding: 80px 0;
}

.activity-images-grid {
    grid-template-columns: 1fr 1fr;
    margin-top: 50px;
}

.activity-image-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
}

.activity-image-box img {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 15px;
    display: block;
    max-height: 380px;
    object-fit: cover;
}

.activity-caption {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==========================================
   Registration Direct Form Box
   ========================================== */
.form-section-direct {
    padding: 80px 0;
    background: #ffffff;
}

.form-container-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 50px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
}

.custom-form-layout {
    margin-top: 40px;
}

.form-row-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.form-select-control {
    width: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='%230f172a' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 15px center;
}

.form-select-control:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-select-control option {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* ==========================================
   Popup Modal Checkout
   ========================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 95%;
    max-width: 500px;
    padding: 40px;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-backdrop.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
}

.modal-header {
    text-align: center;
    margin-bottom: 25px;
}

.modal-header h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.modal-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.qr-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.qr-code {
    width: 180px;
    height: 180px;
    display: block;
    margin: 0 auto 12px;
}

.qr-tip {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.bank-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.bank-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.bank-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.bank-value {
    font-size: 0.95rem;
}

.price-highlight {
    color: var(--primary-orange);
    font-size: 1.1rem;
}

.code-highlight {
    color: var(--accent-blue);
    font-size: 1rem;
    padding: 2px 8px;
    background: rgba(0, 229, 255, 0.1);
    border-radius: 4px;
}

.checkout-warning {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    background: rgba(255, 107, 0, 0.05);
    border: 1px solid rgba(255, 107, 0, 0.2);
    padding: 15px;
    border-radius: 8px;
}

.success-icon-box {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 15px;
}

/* ==========================================
   FAQ Section (Accordion)
   ========================================== */
.faq-section {
    padding: 80px 0;
}

.faq-accordion {
    max-width: 800px;
    margin: 50px auto 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    user-select: none;
}

.faq-icon {
    font-size: 1.3rem;
    color: var(--accent-blue);
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding-bottom: 20px;
}

/* Active State Accordion */
.faq-item.active {
    border-color: var(--primary-orange);
    background: var(--bg-card-hover);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--primary-orange);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* ==========================================
   Footer
   ========================================== */
.main-footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.main-footer h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 25px;
}

.footer-divider {
    width: 60px;
    height: 2px;
    background: var(--border-color);
    margin: 20px auto;
}

.contact-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.copyright {
    color: #4a5568;
    font-size: 0.8rem;
    margin-top: 30px;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 2s infinite;
}

/* ==========================================
   Responsive Media Queries
   ========================================== */
@media (max-width: 992px) {
    h1 { font-size: 2.3rem; }
    h2 { font-size: 1.8rem; }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-graphic {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .science-grid, .coach-grid, .filter-grid, .testimonials-grid, .activity-images-grid {
        grid-template-columns: 1fr;
    }
    
    .coach-image-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-block {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
    }
    
    .block-right {
        left: 0;
    }
    
    .timeline-dot {
        left: 0px !important;
    }
}

/* ==========================================
   Custom Responsive Grid Classes
   ========================================== */
.benefits-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 40px;
    align-items: center;
}

.reasons-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 55px;
    align-items: center;
}

.benefits-images-collage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    align-items: stretch;
}

@media (max-width: 992px) {
    .benefits-grid, .reasons-grid {
        grid-template-columns: 1fr !important;
        gap: 30px;
    }
    .benefits-images-collage {
        grid-template-columns: 1fr !important;
    }
    .benefits-images-collage div {
        min-height: auto !important;
        height: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .form-container-box {
        padding: 30px 20px;
    }
}

@media (max-width: 576px) {
    .logo-title {
        font-size: 0.8rem !important;
    }
    .logo-subtitle {
        font-size: 0.65rem !important;
        margin-top: 1px;
    }
}