/* 
 * Premium Vanilla CSS Design System for Outfit Bay
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@700;800&display=swap');

:root {
    /* Color Tokens */
    --color-ink: #111111;
    --color-ink-light: #222222;
    --color-ink-muted: #555555;
    --color-ink-faint: #e5e5e5;
    --color-cream: #faf7f2;
    --color-white: #ffffff;
    --color-luxe: #ff3f6c;
    --color-brass: #c29a5b;
    --color-glass: rgba(255, 255, 255, 0.95);
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-white);
    color: var(--color-ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    padding-top: 80px; /* Header space */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

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

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

/* Typography Utilities */
.font-display { font-family: var(--font-display); }
.text-luxe { color: var(--color-luxe); }
.text-sm { font-size: 0.875rem; }
.tracking-widest { letter-spacing: 0.24em; }
.uppercase { text-transform: uppercase; }

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }
.w-full { width: 100%; }
.h-full { height: 100%; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 992px) {
    .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .checkout-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 768px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
    .checkout-grid { grid-template-columns: 1fr !important; }
}
.checkout-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    align-items: start;
}

/* Header - Glassmorphism */
.premium-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

/* Mobile Nav / Hamburger */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}
.mobile-nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-ink);
    margin: 5px 0;
    transition: var(--transition-fast);
}
@media (max-width: 768px) {
    .mobile-nav-toggle { display: block; }
    .nav-links { display: none; }
    .premium-header .header-actions form { display: none; } /* Hide search bar only on mobile, keep icons */
    .premium-footer { padding-bottom: calc(2rem + 72px + env(safe-area-inset-bottom)) !important; }
}

/* Sidebar */
.mobile-sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100dvh; /* Dynamic viewport height for modern mobile browsers */
    background: var(--color-white);
    z-index: 2000;
    padding: var(--spacing-md);
    box-shadow: -5px 0 30px rgba(0,0,0,0.1);
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.mobile-sidebar.open {
    right: 0;
}
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}
.sidebar-overlay.open {
    opacity: 1;
    visibility: visible;
}
.mobile-sidebar .close-sidebar {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}
.mobile-sidebar > a {
    font-size: 1.125rem;
    font-weight: 700;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.mobile-sidebar .sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
}

.nav-links a {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    position: relative;
}
.nav-links a:hover { color: var(--color-luxe); }
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--color-luxe);
    transition: var(--transition-fast);
}
.nav-links a:hover::after { width: 100%; }

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-ink);
    color: var(--color-white);
    padding: 1rem 2.5rem;
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-smooth);
}
.btn-primary:hover {
    background-color: var(--color-luxe);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 63, 108, 0.2);
}
.btn-primary:hover::before { left: 100%; }

.btn-outline {
    display: inline-block;
    background-color: transparent;
    color: var(--color-ink);
    border: 2px solid var(--color-ink);
    padding: 1rem 2.5rem;
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    cursor: pointer;
    transition: var(--transition-smooth);
}
.btn-outline:hover {
    background-color: var(--color-ink);
    color: var(--color-white);
}

/* Forms */
.premium-input {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--color-ink-faint);
    background: #fcfcfc;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    transition: var(--transition-fast);
    outline: none;
}
.premium-input:focus {
    border-color: var(--color-ink);
    background: var(--color-white);
}

/* Custom Slider */
.slider-container {
    position: relative;
    width: 100%;
    height: 85vh;
    overflow: hidden;
    background: var(--color-ink);
}
.slider-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.slider-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
}
.slider-slide.active {
    opacity: 1;
    z-index: 10;
}
.slider-content {
    position: relative;
    z-index: 20;
    text-align: center;
    color: var(--color-white);
    transform: translateY(20px);
    opacity: 0;
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}
.slider-slide.active .slider-content {
    transform: translateY(0);
    opacity: 1;
}
.slider-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 30;
}
.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition-fast);
}
.slider-dot.active {
    background: var(--color-luxe);
    transform: scale(1.2);
}

/* Product Cards */
.product-card {
    transition: var(--transition-smooth);
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-white);
    border: 1px solid var(--color-ink-faint);
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    border-color: transparent;
}
.product-card .image-wrapper {
    position: relative;
    aspect-ratio: 3/4;
    background: #f5f5f5;
    overflow: hidden;
    border-bottom: 1px solid var(--color-ink-faint);
}
.product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover img { transform: scale(1.1); }
.product-card .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.15);
    opacity: 0;
    transition: var(--transition-smooth);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--spacing-md);
}
.product-card:hover .overlay { opacity: 1; }
.product-info {
    padding: var(--spacing-sm) var(--spacing-xs);
    text-align: center;
}
.product-info h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--color-ink);
}
.product-info p {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-ink-muted);
}



/* Features */
.features-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-cream);
}
.feature-item { text-align: center; padding: var(--spacing-md); }
.feature-item img { width: 48px; height: 48px; margin: 0 auto var(--spacing-sm); opacity: 0.8; }
.feature-item h4 { font-weight: 700; font-size: 1.125rem; margin-bottom: 8px; }
.feature-item p { font-size: 0.875rem; color: var(--color-ink-muted); }

/* Footer */
.premium-footer {
    background-color: var(--color-ink);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}
.footer-col h4 {
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-brass);
    margin-bottom: var(--spacing-md);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: var(--spacing-sm); }
.footer-col ul a { font-size: 0.875rem; color: rgba(255,255,255,0.6); }
.footer-col ul a:hover { color: var(--color-white); padding-left: 5px; }

/* Badges */
.badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: var(--color-ink);
    color: var(--color-white);
    padding: 4px 12px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 10;
}
.badge.sale { background-color: var(--color-luxe); left: auto; right: 1rem; }

/* Tables */
.premium-table { width: 100%; border-collapse: collapse; margin: var(--spacing-md) 0; }
.premium-table th, .premium-table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--color-ink-faint); }
.premium-table th { font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-ink-muted); }

/* Flash Messages */
.flash-message {
    background-color: var(--color-ink);
    color: var(--color-cream);
    text-align: center;
    padding: 12px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    animation: slideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Custom Utilities */
.section-padding { padding: var(--spacing-xl) 0; }
.text-center { text-align: center; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.page-title { font-size: 3rem; margin-bottom: 1rem; letter-spacing: -0.02em; }

/* ========================================
   MOBILE RESPONSIVE OVERRIDES
   ======================================== */

/* Header Mobile Adjustments */
@media (max-width: 768px) {
    .premium-header .container {
        padding: 0 1rem;
    }
    .premium-header .logo img {
        max-height: 48px !important;
        max-width: 160px !important;
    }
    .premium-header .logo {
        font-size: 1.5rem !important;
    }
}

/* Product Page - Stack image and details vertically on mobile */
@media (max-width: 768px) {
    .grid.grid-cols-2.items-start {
        grid-template-columns: 1fr !important;
    }
    /* Product image on mobile */
    .grid.grid-cols-2.items-start > div:first-child {
        position: static !important;
    }
    /* Product title */
    .grid.grid-cols-2.items-start h1.font-display {
        font-size: 2rem !important;
    }
}



/* Cart Page - Mobile item layout */
@media (max-width: 768px) {
    /* Cart items - stack vertically */
    .cart-item-row {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        text-align: left;
    }
    /* Cart column headers - hide on mobile */
    .cart-headers-row {
        display: none !important;
    }
    /* Cart quantity controls */
    .cart-item-row > div:nth-child(2) {
        justify-content: flex-start !important;
    }
    /* Cart line total */
    .cart-item-row > div:nth-child(3) {
        text-align: left !important;
    }
}



/* Checkout - Form grid on mobile */
@media (max-width: 640px) {
    .checkout-form-grid {
        grid-template-columns: 1fr !important;
    }
    /* Delivery speed options - stack on very small screens */
    .delivery-speed-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Footer - Mobile */
@media (max-width: 992px) {
    .grid.grid-cols-4.gap-lg {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .footer-col[style*="grid-column: span 1"] {
        grid-column: 1 / -1 !important;
    }
}
@media (max-width: 640px) {
    .grid.grid-cols-4.gap-lg {
        grid-template-columns: 1fr !important;
    }
    /* Footer newsletter box */
    div[style*="min-width: 300px"] {
        min-width: 0 !important;
    }
    /* Footer copyright row - stack */
    div[style*="justify-content: space-between"][style*="flex-wrap: wrap"] {
        flex-direction: column;
        align-items: flex-start !important;
    }
}

/* Slider Mobile */
@media (max-width: 768px) {
    .slider-container {
        height: 60vh;
    }
    .slider-content h1 {
        font-size: 2.5rem !important;
    }
}

/* Features Section Mobile */
@media (max-width: 640px) {
    .features-section .container.grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* Lookbook Section Mobile */
@media (max-width: 768px) {
    .section-padding > .container.grid.grid-cols-2.items-center {
        grid-template-columns: 1fr !important;
    }
    .section-padding > .container.grid.grid-cols-2.items-center > div:first-child {
        padding-right: 0 !important;
        text-align: center;
    }
    .section-padding > .container.grid.grid-cols-2.items-center h2 {
        font-size: 2.5rem !important;
    }
}

/* Shop Filter Bar Mobile */
@media (max-width: 640px) {
    #shop-filter-form {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    #shop-filter-form > div[style*="max-width: 340px"] {
        max-width: 100% !important;
    }
    #shop-filter-form > div[style*="margin-left: auto"] {
        margin-left: 0 !important;
        text-align: center;
    }
}

/* General spacing mobile */
@media (max-width: 768px) {
    .section-padding {
        padding: 3rem 0;
    }
    .container {
        padding: 0 1rem;
    }
    .page-title {
        font-size: 2rem;
    }
    /* Cart page title */
    h1.font-display[style*="font-size: 3rem"] {
        font-size: 2rem !important;
    }
    /* Checkout title */
    h1.font-display[style*="font-size: 2.5rem"] {
        font-size: 1.75rem !important;
    }
}

/* Product cards in 2-col on tablet, 2-col on mobile */
@media (max-width: 768px) {
    .grid.grid-cols-4.gap-md {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem !important;
    }
    .product-card {
        border-radius: 4px;
    }
    .product-card .product-info {
        padding: 0.75rem 0.5rem !important;
    }
    .product-card .product-info p:first-child {
        font-size: 0.5rem !important;
        margin-bottom: 0.2rem !important;
    }
    .product-card .product-info h3 {
        font-size: 0.75rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-bottom: 0.25rem !important;
    }
    .product-card .product-info > div:first-of-type span {
        font-size: 0.85rem !important;
    }
    .product-card .product-info > div:first-of-type span:last-child {
        font-size: 0.7rem !important;
    }
    /* Hide the sizes list and the quick-add-to-bag button on mobile catalog to keep it clean */
    .product-card .product-info > div:nth-of-type(2),
    .product-card .product-info form {
        display: none !important;
    }
}

/* Flash toast on mobile */
@media (max-width: 768px) {
    #flash-toast {
        left: 1rem !important;
        right: 1rem !important;
        bottom: calc(80px + env(safe-area-inset-bottom)) !important;
        max-width: none !important;
        min-width: auto !important;
    }
}