/* ===========================
   Global Styles & Reset
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Dark Mode */
    --primary-color: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #3385FF;
    --secondary-color: #00C9A7;
    --accent-color: #FF6B6B;
    --dark-bg: #0A0E27;
    --dark-bg-alt: #141B3C;
    --dark-gray: #1E2749;
    --text-primary: #FFFFFF;
    --text-secondary: #B4BCD0;
    --text-muted: #7B8299;
    --border-color: #2C3555;
    --success-color: #28A745;
    --warning-color: #FFC107;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(0, 102, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

/* Light Mode Variables */
body.light-mode {
    --primary-color: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #3385FF;
    --secondary-color: #00C9A7;
    --accent-color: #FF6B6B;
    --dark-bg: #F8F9FA;
    --dark-bg-alt: #FFFFFF;
    --dark-gray: #FFFFFF;
    --text-primary: #1A1A1A;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    --border-color: #DEE2E6;
    --success-color: #28A745;
    --warning-color: #FFC107;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px rgba(0, 102, 255, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

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

/* ===========================
   Header & Navigation
   =========================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

body.light-mode #header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

#header.scrolled {
    background-color: rgba(10, 14, 39, 0.98);
    box-shadow: var(--shadow-md);
}

body.light-mode #header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    letter-spacing: 1px;
}

.logo-subtitle {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: -5px;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

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

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

.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.theme-toggle i {
    font-size: 1.1rem;
    color: var(--text-primary);
    transition: transform var(--transition-normal);
}

.theme-toggle:hover i {
    transform: rotate(20deg);
}

body.light-mode .theme-toggle {
    background: rgba(0, 0, 0, 0.08);
    border-color: var(--border-color);
}

body.light-mode .theme-toggle:hover {
    background: rgba(0, 102, 255, 0.1);
    border-color: var(--primary-color);
}

body.light-mode .theme-toggle i {
    color: var(--text-primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0A0E27 0%, #141B3C 50%, #0A0E27 100%);
    transition: background var(--transition-normal);
}

body.light-mode .hero {
    background: linear-gradient(135deg, #E6F2FF 0%, #F5F7FA 50%, #E6F2FF 100%);
}

/* Network Animation Background */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.network-animation {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary-color), 0 0 40px var(--primary-color);
    animation: nodePulse 3s ease-in-out infinite;
}

.node:nth-child(2n) {
    animation-delay: 0.5s;
    background: var(--secondary-color);
    box-shadow: 0 0 20px var(--secondary-color), 0 0 40px var(--secondary-color);
}

.node:nth-child(3n) {
    animation-delay: 1s;
}

.node:nth-child(4n) {
    animation-delay: 1.5s;
}

@keyframes nodePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
    }
}

.connection-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.connection-line {
    stroke: var(--primary-color);
    stroke-width: 1;
    opacity: 0.3;
    animation: lineFlow 4s ease-in-out infinite;
}

.connection-line:nth-child(2n) {
    stroke: var(--secondary-color);
    animation-delay: 0.5s;
}

.connection-line:nth-child(3n) {
    animation-delay: 1s;
}

@keyframes lineFlow {
    0%, 100% {
        opacity: 0.2;
        stroke-dasharray: 5, 10;
        stroke-dashoffset: 0;
    }
    50% {
        opacity: 0.6;
        stroke-dashoffset: 30;
    }
}

body.light-mode .node {
    opacity: 0.9;
    box-shadow: 0 0 15px rgba(0, 102, 255, 0.5), 0 0 30px rgba(0, 102, 255, 0.3);
}

body.light-mode .node:nth-child(2n) {
    box-shadow: 0 0 15px rgba(0, 201, 167, 0.5), 0 0 30px rgba(0, 201, 167, 0.3);
}

body.light-mode .connection-line {
    opacity: 0.5;
    stroke-width: 1.5;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 201, 167, 0.1) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
    pointer-events: none;
}

body.light-mode .hero::before {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 201, 167, 0.15) 0%, transparent 50%);
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    animation: fadeInUp 0.8s ease;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.3;
    word-break: keep-all;
}

.typing-text {
    background: linear-gradient(135deg, #FFFFFF 0%, #B4BCD0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.light-mode .typing-text {
    background: linear-gradient(135deg, #1A1A1A 0%, #4A5568 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    background: var(--primary-color);
    margin-left: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

body.light-mode .hero-title {
    background: linear-gradient(135deg, #1A1A1A 0%, #4A5568 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1s ease;
    line-height: 1.7;
    word-break: keep-all;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    animation: fadeInUp 1.2s ease;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

body.light-mode .badge {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.badge i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

body.light-mode .badge i {
    color: var(--primary-color);
}

.badge span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

body.light-mode .badge span {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-secondary);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 3px;
    height: 8px;
    background: var(--primary-color);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scrollAnimation 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scrollAnimation {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

body.light-mode .btn-primary {
    color: #FFFFFF;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.35);
}

body.light-mode .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
}

body.light-mode .btn-secondary {
    background: rgba(0, 102, 255, 0.08);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

body.light-mode .btn-secondary:hover {
    background: rgba(0, 102, 255, 0.15);
}

.btn-large {
    padding: 16px 48px;
    font-size: 1.1rem;
}

/* ===========================
   Section Styles
   =========================== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    word-break: keep-all;
}

.section-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    word-break: keep-all;
}

/* ===========================
   Services Section
   =========================== */
.services {
    background: var(--dark-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    position: relative;
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    overflow: hidden;
}

body.light-mode .service-card {
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 201, 167, 0.05));
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 700;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    word-break: keep-all;
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: 0.95rem;
    word-break: keep-all;
}

.service-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    word-break: keep-all;
}

.service-features i {
    color: var(--secondary-color);
    margin-top: 4px;
    flex-shrink: 0;
}

.service-number {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
}

/* ===========================
   Features Section (Patrol)
   =========================== */
.features {
    background: var(--dark-bg);
}

/* NAC Banner */
.nac-banner {
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 201, 167, 0.1));
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

body.light-mode .nac-banner {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 201, 167, 0.08));
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
}

.nac-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.1) 0%, transparent 60%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.nac-banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    z-index: 2;
}

.nac-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.4);
}

.nac-icon i {
    font-size: 2.5rem;
    color: white;
}

.nac-text {
    flex: 1;
}

.nac-text h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    line-height: 1.4;
    word-break: keep-all;
}

.nac-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
    word-break: keep-all;
}

.nac-text strong {
    color: var(--primary-light);
    font-weight: 700;
}

.highlight-text {
    color: var(--secondary-color);
    font-weight: 700;
}

.nac-badge {
    text-align: center;
    background: linear-gradient(135deg, var(--secondary-color), #00A085);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    flex-shrink: 0;
    min-width: 120px;
    box-shadow: 0 4px 15px rgba(0, 201, 167, 0.4);
}

.badge-text {
    font-size: 1.2rem;
    font-weight: 800;
    color: white;
    margin-bottom: 5px;
    line-height: 1.3;
}

.badge-subtext {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.4;
    word-break: keep-all;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

body.light-mode .feature-card {
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.feature-card.highlight-card {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 201, 167, 0.08));
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.2);
}

body.light-mode .feature-card.highlight-card {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 201, 167, 0.05));
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
}

.feature-card.highlight-card.primary {
    border: 3px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.15), rgba(0, 201, 167, 0.15));
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.35);
    transform: scale(1.02);
}

body.light-mode .feature-card.highlight-card.primary {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 201, 167, 0.08));
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.25);
}

.feature-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--secondary-color);
    color: white;
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-card.highlight-card.primary .feature-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    font-size: 0.8rem;
    padding: 6px 14px;
    box-shadow: 0 2px 10px rgba(0, 102, 255, 0.4);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.2);
}

.feature-card.highlight-card:hover {
    box-shadow: 0 12px 35px rgba(0, 102, 255, 0.3);
}

.feature-card.highlight-card.primary:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 15px 45px rgba(0, 102, 255, 0.5);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 201, 167, 0.1));
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 201, 167, 0.2));
}

.feature-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    word-break: keep-all;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.9rem;
    word-break: keep-all;
}

/* ===========================
   Stats Section
   =========================== */
.stats {
    background: linear-gradient(135deg, var(--dark-bg-alt), var(--dark-gray));
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    position: relative;
    z-index: 2;
}

.stat-card {
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 1.5rem;
    color: white;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: inline-block;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: inline-block;
    margin-left: 5px;
}

.stat-label {
    font-size: 1.05rem;
    font-weight: 600;
    margin: var(--spacing-sm) 0;
    word-break: keep-all;
}

.stat-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    word-break: keep-all;
}

/* ===========================
   Gallery Section
   =========================== */
.gallery {
    background: var(--dark-bg);
    padding: var(--spacing-xl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all var(--transition-slow);
}

.gallery-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.gallery-overlay i {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--spacing-sm);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay i {
    transform: translateY(0);
}

.gallery-overlay p {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    padding: 0 var(--spacing-sm);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
    transition-delay: 0.1s;
}

.gallery-item:hover .gallery-overlay p {
    transform: translateY(0);
}

/* Gallery Lightbox Modal */
.gallery-modal {
    background-color: rgba(0, 0, 0, 0.95);
}

.gallery-modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-modal-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}

.gallery-close {
    position: absolute;
    top: 20px;
    right: 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 2rem;
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-close:hover {
    background: white;
    color: #000;
    transform: rotate(90deg);
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid white;
    border-radius: var(--radius-md);
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    z-index: 10;
    backdrop-filter: blur(10px);
}

.gallery-nav:hover {
    background: white;
    color: #000;
}

.gallery-prev {
    left: 30px;
}

.gallery-next {
    right: 30px;
}

.gallery-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.gallery-counter {
    position: absolute;
    top: 30px;
    left: 30px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* ===========================
   FAQ Section
   =========================== */
.faq {
    background: var(--dark-bg);
}

.faq-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.02);
}

.faq-question h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.5;
    word-break: keep-all;
    padding-right: var(--spacing-sm);
}

.faq-question i {
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    font-size: 1.2rem;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
    word-break: keep-all;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
    background: var(--dark-bg-alt);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.3rem;
    color: white;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.contact-text a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-text a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

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

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--primary-light);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--dark-bg-alt);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.footer-description,
.footer-company {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-col ul li a {
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-col ul li i {
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
    width: 18px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

/* ===========================
   Modal
   =========================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.5rem;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--primary-color);
}

.modal-body {
    padding: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
    max-height: 70vh;
    overflow-y: auto;
}

.modal-body h4 {
    color: var(--text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-body h4:first-child {
    margin-top: 0;
}

.modal-body ul {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.modal-body ul li {
    margin-bottom: var(--spacing-xs);
}

.modal-body p {
    margin-bottom: var(--spacing-sm);
}

.privacy-intro {
    background: rgba(0, 102, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-md) !important;
    font-size: 0.95rem;
}

.privacy-contact {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
}

.privacy-contact ul {
    margin-left: var(--spacing-sm);
    list-style: none;
}

.privacy-contact ul li {
    padding: 5px 0;
}

.privacy-date {
    text-align: center;
    margin-top: var(--spacing-md) !important;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

body.light-mode .privacy-intro {
    background: rgba(0, 102, 255, 0.05);
}

body.light-mode .privacy-contact {
    background: rgba(0, 0, 0, 0.03);
}

.modal-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

.success-icon {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.success-icon i {
    font-size: 4rem;
    color: var(--success-color);
}

.modal-body p {
    text-align: center;
    font-size: 1.1rem;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--dark-bg-alt);
        width: 100%;
        text-align: center;
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md) 0;
        border-top: 1px solid var(--border-color);
    }

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

    .hamburger {
        display: flex;
    }
    
    .theme-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
        min-height: 90px;
    }
    
    .node {
        width: 8px;
        height: 8px;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

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

    .section-title {
        font-size: 2rem;
    }
    
    /* NAC Banner responsive */
    .nac-banner-content {
        flex-direction: column;
        text-align: center;
    }
    
    .nac-icon {
        margin: 0 auto;
    }
    
    .nac-text h3 {
        font-size: 1.3rem;
    }
    
    .nac-text p {
        font-size: 0.95rem;
    }
    
    /* Gallery responsive */
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .gallery-nav {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .gallery-prev {
        left: 10px;
    }
    
    .gallery-next {
        right: 10px;
    }
    
    .gallery-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    
    .gallery-caption {
        font-size: 0.9rem;
        bottom: 20px;
    }
    
    .gallery-counter {
        top: 10px;
        left: 10px;
        font-size: 0.8rem;
    }
}

@media (max-width: 640px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }

    .hero-title {
        font-size: 2.2rem;
        min-height: 90px;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        line-height: 1.6;
    }

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }
    
    .node {
        width: 6px;
        height: 6px;
    }

    .section-title {
        font-size: 1.75rem;
        line-height: 1.4;
    }

    .stat-number {
        font-size: 2.5rem;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* NAC Banner mobile */
    .nac-banner {
        padding: var(--spacing-md);
    }
    
    .nac-banner-content {
        gap: var(--spacing-sm);
    }
    
    .nac-icon {
        width: 60px;
        height: 60px;
    }
    
    .nac-icon i {
        font-size: 2rem;
    }
    
    .nac-text h3 {
        font-size: 1.2rem;
    }
    
    .nac-text p {
        font-size: 0.9rem;
    }
    
    .nac-badge {
        min-width: 100px;
        padding: var(--spacing-sm);
    }
    
    .badge-text {
        font-size: 1.1rem;
    }
    
    .badge-subtext {
        font-size: 0.8rem;
    }
    
    /* Gallery mobile */
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-modal-content img {
        max-height: 70vh;
    }
}

/* ===========================
   Utility Classes
   =========================== */
.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}