/* FILE: style.css - Modern, Premium UI/UX for major.today */

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
    position: relative;
}

/* Animated Background Gradient */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    opacity: 0.03;
    z-index: -1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Header Styles */
.main-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 3rem 1.5rem;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
}

.site-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.title-main {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.title-subtitle {
    font-size: clamp(0.875rem, 2vw, 1.125rem);
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.header-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.date-display {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* Stories Container */
.stories-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
    display: grid;
    gap: 2rem;
}

/* Story Card Styles */
.story-card {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.6s ease-out backwards;
}

.story-card:nth-child(1) { animation-delay: 0.1s; }
.story-card:nth-child(2) { animation-delay: 0.2s; }
.story-card:nth-child(3) { animation-delay: 0.3s; }
.story-card:nth-child(4) { animation-delay: 0.4s; }
.story-card:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.story-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
}

.story-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, var(--category-color) 0%, color-mix(in srgb, var(--category-color) 80%, transparent) 100%);
    color: white;
}

.category-badge {
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.95;
}

.category-number {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
}

.story-content {
    padding: 2rem 1.5rem;
}

.story-headline {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.why-major-section {
    margin-bottom: 1.5rem;
}

.why-major-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.why-major-label svg {
    color: var(--primary-color);
}

.why-major-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
    font-weight: 400;
}

.source-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.source-link:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.source-link svg {
    transition: transform 0.3s ease;
}

.source-link:hover svg {
    transform: translate(2px, -2px);
}

/* No Story State */
.story-content.no-story {
    text-align: center;
    padding: 3rem 1.5rem;
}

.no-story-icon {
    color: var(--text-secondary);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.no-story-text {
    color: var(--text-secondary);
    font-size: 1rem;
    font-style: italic;
}

/* Footer Styles */
.main-footer {
    margin-top: 5rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.newsletter-section {
    padding: 4rem 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-section h3 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.newsletter-section p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.newsletter-button {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

.footer-bottom {
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-header {
        padding: 2rem 1rem;
    }
    
    .stories-container {
        margin: 2rem auto;
        padding: 0 1rem;
        gap: 1.5rem;
    }
    
    .story-content {
        padding: 1.5rem 1rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-button {
        width: 100%;
    }
}

@media (min-width: 1024px) {
    .stories-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .story-card:last-child {
        grid-column: 1 / -1;
        max-width: 600px;
        margin: 0 auto;
    }
}