:root {
    /* Brand Colors */
    --primary-bg: #182C5A;
    --secondary-bg: #243B72;
    --card-bg: #22345F;
    --accent-gold: #D4AF37;
    --hover-gold: #F5C542;
    --text-main: #FFFFFF;
    --text-body: #D9E1F2;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Spacing & Layout */
    --max-width: 1200px;
    --header-height: 80px;
    
    /* Animation */
    --transition: 0.3s ease-in-out;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.2;
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover, a:focus {
    color: var(--hover-gold);
}

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

/* Utility Classes */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.section-padding { padding: 5rem 0; }
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Focus Indicators (Accessibility) */
*:focus-visible {
    outline: 2px dashed var(--accent-gold);
    outline-offset: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--primary-bg);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--hover-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

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

.btn-secondary:hover, .btn-secondary:focus {
    background-color: rgba(212, 175, 55, 0.1);
    transform: translateY(-2px);
}

.btn:disabled, .btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Header & Navigation */
header {
    background-color: rgba(24, 44, 90, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-main);
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-container img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-main);
    font-weight: 500;
}

.nav-links a:hover, .nav-links a:focus, .nav-links a.active {
    color: var(--accent-gold);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 4rem;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-body);
}

.hero-warning {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    border-left: 4px solid var(--accent-gold);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image-container {
    position: relative;
}

.hero-image-container img {
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

/* Statistics Bar */
.stats-bar {
    background-color: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
}

.stats-grid {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-main);
    font-weight: 600;
    font-size: 1.1rem;
}

.stat-item i {
    color: var(--accent-gold);
    font-size: 1.5rem;
}

/* Features Section */
.features {
    background-color: var(--primary-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Screenshots Gallery */
.screenshots {
    background-color: var(--secondary-bg);
}

.gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    cursor: pointer;
    overflow: hidden;
    border-radius: 8px;
    border: 2px solid transparent;
    transition: all var(--transition);
}

.gallery-item:hover, .gallery-item:focus {
    border-color: var(--accent-gold);
    transform: scale(1.02);
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 19, 43, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 2rem;
    cursor: pointer;
    transition: color var(--transition);
}

.lightbox-close:hover {
    color: var(--accent-gold);
}

/* Why Choose Us & FAQ */
.why-choose, .faq {
    background-color: var(--primary-bg);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

details {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

summary {
    padding: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

summary::-webkit-details-marker {
    display: none;
}

summary::after {
    content: '+';
    color: var(--accent-gold);
    font-size: 1.5rem;
    transition: transform var(--transition);
}

details[open] summary::after {
    transform: rotate(45deg);
}

details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.faq-answer {
    padding: 1.5rem;
    color: var(--text-body);
}

/* Footer */
footer {
    background-color: var(--secondary-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-body);
}

.footer-links a:hover, .footer-links a:focus {
    color: var(--hover-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-body);
    font-size: 0.9rem;
}

/* Internal Pages (Privacy, Terms, Support) */
.page-header {
    padding: calc(var(--header-height) + 4rem) 0 3rem;
    background-color: var(--secondary-bg);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 3rem;
}

.content-section {
    padding: 4rem 0;
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
}

.content-block {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.content-block h2 {
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.content-block h3 {
    margin: 1.5rem 0 1rem;
    font-size: 1.3rem;
}

.content-block p, .content-block ul {
    margin-bottom: 1rem;
}

.content-block ul {
    padding-left: 1.5rem;
}

.content-block li {
    margin-bottom: 0.5rem;
}

/* 404 Page */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.error-content h1 {
    font-size: 8rem;
    color: var(--accent-gold);
    margin-bottom: 1rem;
    line-height: 1;
}

.error-content h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-warning {
        margin: 0 auto 2rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--primary-bg);
        flex-direction: column;
        align-items: center;
        padding-top: 2rem;
        transition: left var(--transition);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        gap: 1.5rem;
        flex-direction: column;
        align-items: center;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
    
    .content-block {
        padding: 1.5rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}