/* ===== BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Variables */
    --primary-bg: #000000;
    --secondary-bg: #1a1a1a;
    --primary-text: #ffffff;
    --secondary-text: #cccccc;
    --accent-color: #4a4a4a;
    --border-color: #333;
    --success-color: #39ff14;
    --error-color: #ff4444;
    
    /* Typography */
    --font-family: 'Exo 2', 'Inter', 'Segoe UI', Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Border Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.8s ease;
}

/* Light Theme Variables */
body.light-theme {
    --primary-bg: #ffffff;
    --secondary-bg: #f8f8f8;
    --primary-text: #333333;
    --secondary-text: #666666;
    --accent-color: #e0e0e0;
    --border-color: #ddd;
}

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

/* ===== LAYOUT ===== */
.main-content-container {
    margin-top: 70px;
    height: calc(100vh - 70px - 36px);
    position: relative;
    overflow: hidden;
    background: var(--primary-bg);
    transition: all var(--transition-normal);
}

.sections-container {
    display: flex;
    width: 400%;
    height: 100%;
    transition: transform var(--transition-slow);
}

.content-section {
    width: 25%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    position: relative;
    filter: grayscale(100%) brightness(0.3);
    transition: all var(--transition-slow);
}

/* Section positioning for Netflix-style layout */
.sections-container.show-ai-solutions { transform: translateX(0%); }
.sections-container.show-drones { transform: translateX(-25%); }
.sections-container.show-support { transform: translateX(-50%); }
.sections-container.show-contact { transform: translateX(-75%); }

/* Active section styling */
.sections-container.show-drones #drones,
.sections-container.show-ai-solutions #ai-solutions,
.sections-container.show-support #support,
.sections-container.show-contact #contact {
    filter: grayscale(0%) brightness(1);
    transform: scale(1.02);
}

.section-content {
    text-align: left;
    max-width: 1200px;
    padding: var(--spacing-xl);
    width: 100%;
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    padding: var(--spacing-xl);
    margin: 0 auto;
}

/* ===== TYPOGRAPHY ===== */
h2, h3 {
    font-family: var(--font-family);
    font-weight: var(--font-weight-bold);
    letter-spacing: 1px;
}

.hero-content h3 {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-text);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-normal);
}

.hero-content p {
    font-size: 16px;
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-text);
    line-height: 1.6;
    transition: all var(--transition-normal);
}

/* ===== COMPONENTS ===== */
.card-image {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-xxl);
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-text);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xl);
}

.service-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.feature-item {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
    border-radius: var(--border-radius-md);
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-text);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-normal);
}

.feature-item p {
    color: var(--secondary-text);
    line-height: 1.6;
    transition: all var(--transition-normal);
}



/* ===== FOOTER ===== */
.footer {
    background: var(--primary-bg);
    padding: var(--spacing-sm);
    transition: all var(--transition-normal);
}

.footer-bottom {
    text-align: center;
    color: var(--secondary-text);
    font-size: 0.9rem;
}

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

.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

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