/* ============================================
   UNIFIED COMPONENTS CSS
   ============================================ */

/* CSS Variables - Single Source of Truth */
:root {
    /* Colors */
    --color-primary: #1a2b47;
    --color-secondary: #007bff;
    --color-accent: #dc3545;
    --color-success: #28a745;
    
    /* Backgrounds */
    --color-background: #1a1a1a;
    --color-dark-bg: #222222;
    --color-darker-bg: #1a1a1a;
    --color-white: #ffffff;
    
    /* Text */
    --color-text-dark: #333333;
    --color-text-light: #f5f5f5;
    --color-text-lighter: #cccccc;
    
    /* Borders */
    --color-border-dark: #444444;
    --color-border-light: #e0e0e0;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --font-accent: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 15px;
    --transition-speed: 0.3s;
    --box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
    
    /* Breakpoints */
    --bp-mobile: 768px;
    --bp-tablet: 1024px;
    --bp-desktop: 1200px;
}

/* Base Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-family: var(--font-accent);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    cursor: pointer;
    border: 2px solid transparent;
    min-height: 44px;
    font-size: 1.6rem;
    line-height: 1.2;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-accent) 0%, #ff4757 100%);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c82333 0%, #ff6b81 100%);
    border-color: transparent;
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(220, 53, 69, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

/* Base Card Component */
.card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card-hover:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
    background: rgba(30, 41, 59, 0.9);
}

.card-featured {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(220, 53, 69, 0.05) 100%);
}

/* Section Components */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 2px;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Animation Utilities */
.fade-in {
    animation: fadeIn 1s ease-out;
}

.slide-up {
    animation: slideUp 1s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

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

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

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(220, 53, 69, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0); }
}

/* Scrolling Animation */
@keyframes scrollRTL {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.scroll-container {
    overflow: hidden;
    padding: 2rem 0;
    position: relative;
}

.scroll-container::before,
.scroll-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.scroll-container::before {
    left: 0;
    background: linear-gradient(to right, var(--color-background), transparent);
}

.scroll-container::after {
    right: 0;
    background: linear-gradient(to left, var(--color-background), transparent);
}

.scroll-content {
    display: flex;
    gap: 3rem;
    animation: scrollRTL 30s linear infinite;
    width: max-content;
}

.scroll-content:hover {
    animation-play-state: paused;
}

/* Responsive Utilities */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
}