/* ========================================
   SANCHAI.RUN - IGNITE YOUR SPEED
   Premium Dark Theme Landing Page
   ======================================== */

/* ========================================
   CSS VARIABLES & DESIGN TOKENS
   ======================================== */
:root {
    /* Colors */
    --color-black: #000000;
    --color-charcoal: #121212;
    --color-dark-grey: #1a1a1a;
    --color-grey: #2a2a2a;
    --color-light-grey: #999999;
    --color-white: #ffffff;
    --color-accent: #E31C25;
    --color-accent-dark: #b8151c;
    --color-accent-light: #ff2d38;

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-black) 0%, var(--color-charcoal) 100%);
    --gradient-hero: linear-gradient(135deg, rgba(0, 0, 0, 0.95) 0%, rgba(18, 18, 18, 0.9) 50%, rgba(227, 28, 37, 0.1) 100%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-thai: 'Kanit', 'Inter', sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
    --text-7xl: 6rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(227, 28, 37, 0.4);
    --shadow-glow-lg: 0 0 60px rgba(227, 28, 37, 0.6);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-Index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-overlay: 500;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-thai);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   UTILITIES
   ======================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.text-accent {
    color: var(--color-accent);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(227, 28, 37, 0.15);
    border: 1px solid rgba(227, 28, 37, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-light-grey);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.05);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.btn-large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-base);
}

.navbar.scrolled {
    padding: var(--space-3) 0;
    background: rgba(0, 0, 0, 0.95);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.nav-logo img {
    height: 48px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-light-grey);
    transition: var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--color-white);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.cta-link {
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: var(--radius-md);
}

.nav-link.cta-link::after {
    display: none;
}

.nav-link.cta-link:hover {
    background: var(--color-accent-light);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-base);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-24) 0;
    overflow: hidden;
    background: var(--color-black);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-diagonal {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(227, 28, 37, 0.05) 100%);
    clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
    z-index: 1;
}

.hero-diagonal::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 2px;
    height: 60%;
    background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
    transform: rotate(15deg);
    opacity: 0.3;
}

.hero-diagonal::after {
    content: '';
    position: absolute;
    top: 10%;
    left: 30%;
    width: 1px;
    height: 80%;
    background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
    transform: rotate(15deg);
    opacity: 0.2;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.hero-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(227, 28, 37, 0.2);
    border: 1px solid rgba(227, 28, 37, 0.4);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color-accent);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-light-grey);
    max-width: 500px;
    margin-bottom: var(--space-10);
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.hero-image {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 38%;
    max-width: 500px;
    z-index: 1;
    animation: fadeInRight 1s ease 0.5s forwards;
    opacity: 0;
}

.hero-image img {
    width: 100%;
    height: auto;
    filter: none;
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

.hero-image::before {
    content: '';
    position: absolute;
    bottom: 20%;
    left: -20%;
    width: 140%;
    height: 60%;
    background: radial-gradient(ellipse, rgba(227, 28, 37, 0.3) 0%, transparent 70%);
    z-index: -1;
}

.hero-image-caption {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    margin-top: var(--space-3);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-light-grey);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ========================================
   STATS SECTION
   ======================================== */
.stats {
    position: relative;
    padding: var(--space-24) 0;
    background: var(--color-charcoal);
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.stat-card {
    text-align: center;
    padding: var(--space-8);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-8px);
    background: rgba(227, 28, 37, 0.05);
    border-color: rgba(227, 28, 37, 0.2);
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(227, 28, 37, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 900;
    line-height: 1;
    color: var(--color-white);
}

.stat-suffix {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-accent);
    margin-left: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    margin-top: var(--space-2);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    padding: var(--space-24) 0;
    background: var(--color-black);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -20%;
    width: 50%;
    height: 50%;
    background: radial-gradient(ellipse, rgba(227, 28, 37, 0.1) 0%, transparent 70%);
    transform: translateY(-50%);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.image-frame img {
    width: 100%;
    height: auto;
    filter: none;
    transition: var(--transition-slow);
}

.image-frame:hover img {
    filter: none;
}

.image-accent {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-xl);
    z-index: -1;
}

.about-content {
    position: relative;
    z-index: 1;
}

.about-text {
    font-size: var(--text-lg);
    color: var(--color-light-grey);
    margin-bottom: var(--space-6);
    line-height: 1.8;
}

.about-text strong {
    color: var(--color-white);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.about-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
}

.about-features svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* ========================================
   PROGRAMS SECTION
   ======================================== */
.programs {
    padding: var(--space-24) 0;
    background: var(--color-charcoal);
    position: relative;
}

.programs::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10%;
    width: 40%;
    height: 60%;
    background: radial-gradient(ellipse, rgba(227, 28, 37, 0.08) 0%, transparent 70%);
    transform: translateY(-50%);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    position: relative;
    z-index: 1;
}

.program-card {
    background: var(--color-dark-grey);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-grey);
    transition: var(--transition-base);
}

.program-card:hover {
    transform: translateY(-8px);
    border-color: rgba(227, 28, 37, 0.3);
}

.program-card:hover::before {
    background: var(--color-accent);
}

.program-card.elite {
    background: linear-gradient(180deg, rgba(227, 28, 37, 0.15) 0%, var(--color-dark-grey) 50%);
    border-color: rgba(227, 28, 37, 0.3);
}

.program-card.elite::before {
    background: var(--color-accent);
}

.program-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 1px;
}

.program-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.program-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.program-name {
    font-size: var(--text-xl);
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: var(--space-2);
}

.program-tagline {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
}

.program-price {
    text-align: center;
    padding: var(--space-6) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: var(--space-6);
}

.price-amount {
    font-size: var(--text-4xl);
    font-weight: 900;
    color: var(--color-white);
}

.price-period {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    margin-left: var(--space-1);
}

.program-features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.program-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-light-grey);
}

.program-features svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.program-card .btn {
    width: 100%;
}

/* ========================================
   BENEFITS GRID (What You Get)
   ======================================== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    position: relative;
    z-index: 1;
}

.benefit-card {
    background: var(--color-dark-grey);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    transition: var(--transition-base);
    position: relative;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-grey);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transition: var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: rgba(227, 28, 37, 0.3);
}

.benefit-card:hover::before {
    background: var(--color-accent);
}

.benefit-card.highlight {
    background: linear-gradient(180deg, rgba(227, 28, 37, 0.15) 0%, var(--color-dark-grey) 50%);
    border-color: rgba(227, 28, 37, 0.3);
}

.benefit-card.highlight::before {
    background: var(--color-accent);
}

.benefit-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 1px;
}

.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: rgba(227, 28, 37, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
    color: var(--color-accent);
}

.benefit-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-white);
}

.benefit-desc {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    line-height: 1.7;
}

/* Benefit cards with images */
.benefit-card.has-image {
    grid-column: span 1;
}

.benefit-preview {
    margin-top: var(--space-5);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-charcoal);
}

.benefit-preview img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
}

.benefit-card:hover .benefit-preview img {
    transform: scale(1.02);
}

/* Phone frame style for LINE preview */
.benefit-preview.phone-frame {
    max-width: 200px;
    margin: var(--space-5) auto 0;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Browser frame style for website preview */
.benefit-preview.browser-frame {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

.benefit-preview.browser-frame::before {
    content: '';
    display: block;
    height: 24px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Grid for multiple previews */
.benefit-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

/* Lightbox clickable images */
.lightbox-img {
    cursor: pointer;
    transition: var(--transition-base);
}

.lightbox-img:hover {
    opacity: 0.85;
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    overflow: auto;
    animation: fadeIn 0.3s ease;
}

.lightbox.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: var(--color-white);
    font-size: 48px;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10000;
}

.lightbox-close:hover {
    color: var(--color-accent);
    transform: scale(1.1);
}

.lightbox-content {
    max-width: 90%;
    max-height: 85vh;
    border-radius: var(--radius-lg);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

.lightbox-caption {
    color: var(--color-light-grey);
    text-align: center;
    padding: var(--space-4);
    font-size: var(--text-base);
    max-width: 600px;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* LINE Contact Section */
.line-contact-section {
    margin-top: var(--space-16);
}

.line-contact-card {
    background: linear-gradient(135deg, rgba(0, 195, 0, 0.1) 0%, var(--color-dark-grey) 100%);
    border: 2px solid rgba(0, 195, 0, 0.3);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.line-contact-content {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.line-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: #00C300;
    border-radius: var(--radius-xl);
    color: var(--color-white);
    flex-shrink: 0;
}

.line-contact-text h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--color-white);
}

.line-contact-text p {
    font-size: var(--text-base);
    color: var(--color-light-grey);
}

.btn-line {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-8);
    background: #00C300;
    color: var(--color-white);
    font-size: var(--text-lg);
    font-weight: 700;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn-line:hover {
    background: #00a300;
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 195, 0, 0.4);
}

/* ========================================
   FEATURE SHOWCASE (Example Images)
   ======================================== */
.feature-showcase {
    margin-top: var(--space-20);
    padding-top: var(--space-16);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-showcase .section-header {
    margin-bottom: var(--space-12);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-8);
    align-items: start;
}

.showcase-item {
    background: var(--color-dark-grey);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: var(--transition-base);
}

.showcase-item:hover {
    border-color: rgba(227, 28, 37, 0.3);
}

.showcase-item.wide {
    grid-column: span 1;
}

.showcase-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    color: var(--color-accent);
    font-weight: 600;
    font-size: var(--text-sm);
}

.showcase-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-charcoal);
}

.showcase-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
}

.showcase-item:hover .showcase-image img {
    transform: scale(1.02);
}

/* Phone frame style */
.showcase-image.phone-frame {
    max-width: 280px;
    margin: 0 auto;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Browser frame style */
.showcase-image.browser-frame {
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.showcase-image.browser-frame::before {
    content: '';
    display: block;
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.showcase-images {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.showcase-caption {
    margin-top: var(--space-4);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-light-grey);
}

/* ========================================
   GALLERY SECTION
   ======================================== */
.gallery {
    padding: var(--space-24) 0;
    background: var(--color-black);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: none;
    transition: var(--transition-slow);
}

.gallery-item:hover img {
    filter: none;
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-4);
    opacity: 0;
    transition: var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    padding: var(--space-24) 0;
    background: var(--color-charcoal);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(227, 28, 37, 0.15) 0%, transparent 50%);
    transform: translate(-50%, -50%);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.cta-text {
    font-size: var(--text-lg);
    color: var(--color-light-grey);
    margin-bottom: var(--space-8);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    background: var(--color-black);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: var(--space-4);
}

.footer-tagline {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.footer-desc {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-6);
    color: var(--color-white);
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a,
.footer-contact li {
    font-size: var(--text-sm);
    color: var(--color-light-grey);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: var(--space-2);
}

.footer-contact svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: var(--color-light-grey);
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-4px);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-sm);
    color: var(--color-light-grey);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(12px);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --text-6xl: 3.5rem;
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
    }

    .hero-image {
        width: 40%;
        right: 0;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .programs-grid .program-card.elite {
        grid-column: span 2;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefit-card.highlight {
        grid-column: span 2;
    }

    .line-contact-card {
        flex-direction: column;
        text-align: center;
    }

    .line-contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    :root {
        --text-6xl: 2.5rem;
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-charcoal);
        flex-direction: column;
        justify-content: center;
        padding: var(--space-8);
        transition: var(--transition-base);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1000;
    }

    .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 {
        text-align: center;
        padding-bottom: var(--space-16);
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

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

    .hero-cta {
        justify-content: center;
    }

    .hero-image {
        position: relative;
        width: 80%;
        right: auto;
        margin-top: var(--space-8);
    }

    .hero-scroll {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .stat-card {
        padding: var(--space-6);
    }

    .stat-number {
        font-size: var(--text-4xl);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .about-image {
        order: 1;
    }

    .about-content {
        order: 2;
    }

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

    .programs-grid .program-card.elite {
        grid-column: span 1;
    }

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

    .benefit-card.highlight {
        grid-column: span 1;
    }

    .line-contact-card {
        padding: var(--space-6);
    }

    .line-icon {
        width: 64px;
        height: 64px;
    }

    .line-contact-text h3 {
        font-size: var(--text-xl);
    }

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

    .showcase-item.wide {
        grid-column: span 1;
    }

    .showcase-image.phone-frame {
        max-width: 220px;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-8);
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
        padding: 0 var(--space-4);
    }
}