/* ============================================
   Passion Fashion - Styles.css
   Mobile-First Fashion Dashboard Design
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #000000;
    --color-secondary: #333333;
    --color-accent: #666666;
    --color-background: #ffffff;
    --color-surface: #f8f8f8;
    --color-border: #e0e0e0;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
    
    /* Typography */
    --font-primary: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-secondary: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Layout */
    --max-width: 1400px;
    --header-height: auto;
    
    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 4px;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-background);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }

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

a:hover {
    color: var(--color-accent);
}

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

/* ============================================
   Header Styles
   ============================================ */
.header {
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-xs);
}

.tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-style: italic;
}

/* Mobile Navigation Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: transform var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Main Navigation */
.main-nav {
    border-top: 1px solid var(--color-border);
}

.nav-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-sm) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

/* ============================================
   Main Content Layout
   ============================================ */
.main-content {
    min-height: calc(100vh - 200px);
}

.content-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.content-area {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

/* ============================================
   News Grid Styles
   ============================================ */
.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

/* Loading Indicator */
.loading-indicator {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-muted);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    animation: spin 1s linear infinite;
}

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

.error-message {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

/* News Card */
.news-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.news-card-image {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--color-surface);
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
    opacity: 0;
}

.news-card-image img.loaded {
    opacity: 1;
}

.news-card:hover .news-card-image img {
    transform: scale(1.03);
}

.news-card-content {
    padding: var(--spacing-md);
}

.news-card-source {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.news-card-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.news-card-title a {
    color: var(--color-primary);
}

.news-card-title a:hover {
    color: var(--color-text-muted);
}

.news-card-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.news-card-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.news-card-link {
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Placeholder Image */
.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Lazy Loading Fade In */
.lazy-image {
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.lazy-image.loaded {
    opacity: 1;
}

/* ============================================
   Trending Topics Styles
   ============================================ */
.trending-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.trending-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    transition: background var(--transition-fast);
}

.trending-item:hover {
    background: var(--color-border);
}

.trending-number {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    min-width: 24px;
}

.trending-keyword {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ============================================
   Editor Picks Styles
   ============================================ */
.picks-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.pick-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: box-shadow var(--transition-normal);
}

.pick-card:hover {
    box-shadow: var(--shadow-md);
}

.pick-image {
    aspect-ratio: 16/9;
    background: var(--color-surface);
}

.pick-content {
    padding: var(--spacing-md);
}

.pick-content h3 {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.pick-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.pick-source {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   Advertisement Styles
   ============================================ */
.ad-placeholder {
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-md);
    min-height: 100px;
}

.ad-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.ad-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.ad-size {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* Mobile Ad Banner */
.ad-banner-mobile {
    max-width: var(--max-width);
    margin: 0 auto var(--spacing-lg);
    padding: 0 var(--spacing-md);
}

.ad-banner-mobile .ad-placeholder {
    min-height: 90px;
}

/* Tablet Ad Banner */
.ad-banner-tablet {
    display: none;
}

/* Desktop Sidebar Ads */
.ad-sidebar-left,
.ad-sidebar-right {
    display: none;
}

/* ============================================
   Footer Styles
   ============================================ */
.footer {
    background: var(--color-primary);
    color: var(--color-background);
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--color-background);
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.footer-section h4 {
    color: var(--color-background);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.footer-section p {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    line-height: 1.6;
}

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

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

.footer-links a {
    color: var(--color-background);
    font-size: var(--font-size-sm);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-background);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    opacity: 0.6;
    margin-bottom: var(--spacing-xs);
}

.footer-disclaimer {
    font-size: var(--font-size-xs) !important;
    opacity: 0.4 !important;
}

/* ============================================
   PWA Install Prompt
   ============================================ */
.install-prompt {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.install-prompt p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.install-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-install,
.btn-dismiss {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-install {
    background: var(--color-primary);
    color: var(--color-background);
    border: none;
}

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

.btn-dismiss {
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.btn-dismiss:hover {
    background: var(--color-surface);
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Tablet (768px - 1024px) */
@media (min-width: 768px) {
    /* Header */
    .logo h1 {
        font-size: var(--font-size-2xl);
    }
    
    .tagline {
        font-size: var(--font-size-base);
    }
    
    /* Navigation */
    .nav-list {
        gap: var(--spacing-xl);
    }
    
    .nav-link {
        font-size: var(--font-size-base);
    }
    
    /* News Grid */
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Trending */
    .trending-list {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Picks */
    .picks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Ad Banners */
    .ad-banner-mobile {
        display: none;
    }
    
    .ad-banner-tablet {
        display: block;
        margin: var(--spacing-lg) 0;
    }
    
    .ad-banner-tablet .ad-placeholder {
        min-height: 120px;
    }
    
    /* Footer */
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop (> 1024px) */
@media (min-width: 1024px) {
    /* Typography */
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }
    
    /* Header */
    .header-container {
        padding: var(--spacing-lg) var(--spacing-xl);
    }
    
    .logo h1 {
        font-size: var(--font-size-3xl);
    }
    
    /* Layout with Sidebar Ads */
    .content-wrapper {
        grid-template-columns: 160px 1fr 160px;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl);
    }
    
    .ad-sidebar-left,
    .ad-sidebar-right {
        display: block;
        position: sticky;
        top: 100px;
        height: fit-content;
    }
    
    .ad-vertical {
        min-height: 600px;
    }
    
    /* News Grid */
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Trending */
    .trending-list {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Picks */
    .picks-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Tablet Ad Banner */
    .ad-banner-tablet {
        display: none;
    }
    
    /* Section Titles */
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    /* Footer */
    .footer-container {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

/* Large Desktop (> 1200px) */
@media (min-width: 1200px) {
    .news-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .header,
    .footer,
    .install-prompt,
    .ad-placeholder {
        display: none;
    }
    
    .content-wrapper {
        display: block;
    }
    
    .news-card {
        break-inside: avoid;
        margin-bottom: var(--spacing-md);
    }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}