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

:root {
    /* Primary Colors */
    --color-primary-red: #DC2626;
    --color-primary-navy: #1E293B;
    --color-primary-blue: #3B82F6;
    
    /* Secondary Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-info: #06B6D4;
    --color-entertainment: #8B5CF6;
    
    /* Category Colors */
    --color-politics: #3B82F6;
    --color-business: #10B981;
    --color-technology: #8B5CF6;
    --color-sports: #EF4444;
    --color-entertainment: #EC4899;
    --color-health: #14B8A6;
    --color-climate: #22C55E;
    --color-opinion: #F59E0B;
    
    /* Neutral Colors */
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-tertiary: #94A3B8;
    --color-text-disabled: #CBD5E1;
    
    --color-bg-white: #FFFFFF;
    --color-bg-offwhite: #F8FAFC;
    --color-bg-light: #F1F5F9;
    --color-bg-medium: #E2E8F0;
    --color-bg-dark: #334155;
    
    --color-border-light: #E2E8F0;
    --color-border-medium: #CBD5E1;
    --color-border-dark: #94A3B8;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Merriweather', Georgia, 'Times New Roman', serif;
    
    /* Spacing */
    --spacing-0: 0;
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --spacing-10: 40px;
    --spacing-12: 48px;
    --spacing-16: 64px;
    --spacing-20: 80px;
    --spacing-24: 96px;
    --spacing-32: 128px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --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);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-modal: 1050;
    --z-tooltip: 1070;
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
    transition: background-color var(--transition-normal);
}

body.dark-mode {
    --color-text-primary: #F8FAFC;
    --color-text-secondary: #CBD5E1;
    --color-text-tertiary: #94A3B8;
    --color-bg-white: #0F172A;
    --color-bg-offwhite: #1E293B;
    --color-bg-light: #334155;
    --color-border-light: #334155;
    --color-border-medium: #475569;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
}

h1 {
    font-size: 48px;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 36px;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 24px;
    font-weight: 600;
}

p {
    font-family: var(--font-secondary);
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

a {
    color: var(--color-primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-red);
}

/* ===== LAYOUT & CONTAINER ===== */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-8);
}

@media (max-width: 1279px) {
    .container {
        padding: 0 var(--spacing-4);
    }
}

@media (max-width: 767px) {
    .container {
        padding: 0 var(--spacing-3);
    }
}

/* ===== UTILITY CLASSES ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary-red);
    color: white;
    padding: var(--spacing-3) var(--spacing-4);
    z-index: var(--z-modal);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== HEADER STYLES ===== */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-sm);
    height: 72px;
}

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

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: 800;
    font-size: 20px;
    color: var(--color-text-primary);
}

.logo-text {
    background: linear-gradient(135deg, var(--color-primary-red), var(--color-primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-6);
}

.nav-menu a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 16px;
    padding: var(--spacing-2) 0;
    position: relative;
}

.nav-menu a.active,
.nav-menu a:hover {
    color: var(--color-text-primary);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--color-primary-red);
    border-radius: var(--radius-full);
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
}

.user-name {
    font-weight: 500;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
}

.dropdown-menu a:hover {
    background-color: var(--color-bg-offwhite);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: var(--spacing-2) 0;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #B91C1C;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-medium);
}

.btn-outline:hover {
    background: var(--color-bg-offwhite);
    border-color: var(--color-border-dark);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
}

/* ===== BREAKING NEWS ===== */
.breaking-news {
    background: var(--color-primary-red);
    color: white;
    padding: var(--spacing-3) 0;
}

.breaking-news .container {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.breaking-label {
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.breaking-content {
    flex: 1;
    overflow: hidden;
}

.breaking-link {
    color: white;
    text-decoration: none;
    margin-right: var(--spacing-4);
}

.breaking-link:hover {
    text-decoration: underline;
}

/* ===== SECTION STYLES ===== */
.main-content {
    padding-top: var(--spacing-8);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
}

.section-title {
    font-size: 28px;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.view-all {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-blue);
}

/* ===== BUTTONS ===== */
.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: 14px;
}

.btn-xs {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: 12px;
}

.icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: var(--color-bg-offwhite);
    color: var(--color-text-primary);
}

/* ===== CATEGORY BADGES ===== */
.category-badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-3);
    color: white;
}

.category-badge.small {
    font-size: 10px;
    padding: var(--spacing-1) var(--spacing-2);
}

/* ===== FOOTER STYLES ===== */
.footer {
    background: var(--color-primary-navy);
    color: white;
    padding: var(--spacing-12) 0 var(--spacing-8);
    margin-top: var(--spacing-12);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.footer-description {
    color: var(--color-text-tertiary);
    margin: var(--spacing-4) 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-primary-red);
    transform: translateY(-2px);
}

.footer-title {
    font-size: 18px;
    margin-bottom: var(--spacing-4);
    color: white;
}

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

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
    color: var(--color-text-tertiary);
}

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.legal-links {
    display: flex;
    gap: var(--spacing-4);
}

.legal-links a {
    color: var(--color-text-tertiary);
    font-size: 14px;
}

.legal-links a:hover {
    color: white;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1279px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-6);
    }
}

@media (max-width: 767px) {
    /* Header */
    .header {
        height: 60px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-bg-white);
        flex-direction: column;
        padding: var(--spacing-4);
        box-shadow: var(--shadow-lg);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .header-actions {
        gap: var(--spacing-2);
    }
    
    .user-name {
        display: none;
    }
    
    /* Typography */
    h1 {
        font-size: 32px;
    }
    
    h2 {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-4);
    }
}

/* Toast notifications */
.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #333;
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.toast-notification.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

.toast-success {
    background: #10b981;
}

.toast-error {
    background: #ef4444;
}

.toast-warning {
    background: #f59e0b;
}

.toast-info {
    background: #3b82f6;
}

.toast-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
}

/* Loading animation */
.animate-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* Responsive images */
.article-img,
.carousel-img {
    transition: opacity 0.3s ease;
    opacity: 0;
}

.article-img.loaded,
.carousel-img.loaded {
    opacity: 1;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Breaking news ticker */
.breaking-ticker {
    display: flex;
    overflow: hidden;
    white-space: nowrap;
    animation: ticker 30s linear infinite;
}

@keyframes ticker {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}

.pagination-list {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #f3f4f6;
    color: #374151;
    text-decoration: none;
    transition: all 0.2s ease;
}

.pagination-link:hover {
    background: #e5e7eb;
}

.pagination-link.active {
    background: #3b82f6;
    color: white;
}

/* ===== HEADER STYLES ===== */
.header {
    background: white;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

/* Main Navigation */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    color: #4b5563;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: #f3f4f6;
    color: #3b82f6;
}

.nav-icon {
    width: 18px;
    height: 18px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #4b5563;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
}

.mobile-menu-btn:hover {
    background: #f3f4f6;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: #f3f4f6;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.user-btn:hover {
    background: #e5e7eb;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #3b82f6;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropdown-arrow {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.user-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(5px);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: #4b5563;
    text-decoration: none;
    transition: all 0.3s ease;
}

.dropdown-menu a:hover {
    background: #f3f4f6;
    color: #3b82f6;
}

.dropdown-divider {
    height: 1px;
    background: #e5e7eb;
    margin: 0.5rem 0;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-outline {
    background: transparent;
    border-color: #d1d5db;
    color: #4b5563;
}

.btn-outline:hover {
    border-color: #3b82f6;
    color: #3b82f6;
}

.btn-primary {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.btn-primary:hover {
    background: #2563eb;
    border-color: #2563eb;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}