/* ==========================================
   SPORTLABOAI - DR PRONOS
   Design System & Styles
   ========================================== */

/* ========== Variables ========== */
:root {
    --primary: #0066CC;
    --secondary: #00CC66;
    --accent: #FF6600;
    --dark: #1A1A1A;
    --gray: #6B7280;
    --light-gray: #F3F4F6;
    --white: #FFFFFF;
    
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ========== Container ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ========== Header ========== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--dark);
}

.logo-icon {
    font-size: 2rem;
}

.menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.menu a {
    font-weight: 600;
    color: var(--gray);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.menu a:hover,
.menu a.active {
    color: var(--primary);
    background: rgba(0, 102, 204, 0.1);
}

.btn-vip {
    background: var(--gradient) !important;
    color: var(--white) !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: var(--radius-md);
    font-weight: 700;
}

.btn-vip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========== Hero Section ========== */
.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* ========== Buttons ========== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
}

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

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* ========== Sections ========== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-dark {
    background: var(--dark);
    color: var(--white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-dark .section-title {
    color: var(--white);
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-md);
}

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

/* ========== Cards ========== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.card-meta {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.card-excerpt {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--light-gray);
}

.prediction {
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.card-link {
    color: var(--primary);
    font-weight: 600;
    transition: all 0.3s;
}

.card-link:hover {
    transform: translateX(5px);
}

/* ========== Video Cards ========== */
.video-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.3s;
}

.video-card:hover .video-play {
    background: var(--primary);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-title {
    padding: var(--spacing-sm);
    font-weight: 600;
    color: var(--white);
}

.video-meta {
    padding: 0 var(--spacing-sm) var(--spacing-sm);
    color: var(--gray);
    font-size: 0.9rem;
}

/* ========== CTA Section ========== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
}

.cta-box {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.cta-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.cta-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.feature {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-weight: 600;
}

/* ========== Footer ========== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--gray);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.footer-column a {
    display: block;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--gray);
}

.disclaimer {
    font-size: 0.85rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .menu {
        gap: var(--spacing-sm);
    }
    
    .menu a {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .cta-features {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
}