/* Sleek Shopping Cart UI - Modern Neumorphic Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #e0e5ec;
    --sh-dark: #a3b1c6;
    --sh-light: #ffffff;
    --accent: #4b7cf3;
    --accent-dark: #3761cc;
    --text-main: #44475a;
    --radius-xl: 40px;
    --radius-lg: 25px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --success: #10b981;
    --danger: #ef4444;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #64748b;
    --accent-hover: #2563eb;
    --border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg: #1d2126;
    --sh-dark: #121417;
    --sh-light: #2b3138;
    --accent: #729dfa;
    --accent-dark: #4b7cf3;
    --text-main: #f8fafc;
    --bg-primary: #1d2126;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --sh-dark: rgba(0, 0, 0, 0.8);
    --sh-light: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.1);
}

/* Dark mode specific adjustments */
[data-theme="dark"] body {
    background: var(--bg-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .theme-toggle-btn {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .theme-toggle-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

[data-theme="dark"] .theme-toggle-btn i {
    color: var(--text-primary);
}

[data-theme="dark"] .theme-toggle-btn:hover i {
    color: white;
}

/* Dark mode for cart elements */
[data-theme="dark"] .neu-concave-well,
[data-theme="dark"] .neu-convex,
[data-theme="dark"] .neu-pressed {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .text-muted {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, 
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .fw-bold {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-circle {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-circle:hover {
    background: var(--accent);
    color: white;
}

[data-theme="dark"] .form-control {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--text-secondary);
}

[data-theme="dark"] .shipping-card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .shipping-card.active {
    background: var(--accent);
    border-color: var(--accent);
}

[data-theme="dark"] .order-summary {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .toast-notification {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Dark mode for navbar */
[data-theme="dark"] .navbar {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .navbar-brand {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .navbar-brand:hover {
    color: var(--accent) !important;
}

[data-theme="dark"] .nav-link {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-neumorphic {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-neumorphic:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

[data-theme="dark"] .btn-primary {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: white !important;
}

[data-theme="dark"] .btn-primary:hover {
    background: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
}

[data-theme="dark"] .navbar-toggler {
    border-color: var(--border-color);
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .badge.bg-danger {
    background-color: var(--danger) !important;
}

[data-theme="dark"] .neumorphic-nav {
    background: var(--bg-secondary) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    padding: 80px 0 20px 0; /* Increased top padding for header clearance */
    transition: 0.4s ease;
    min-height: 100vh;
}

/* Header z-index fix */
header {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border-color);
    z-index: 1000 !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 60px !important;
}

/* Container with proper z-index */
.container {
    max-width: 1340px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
    margin-top: 20px;
}

/* Cart content area */
.cart-content {
    position: relative;
    z-index: 10;
}

/* Neu elements with proper stacking */
.neu-concave-well {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: inset 12px 12px 24px var(--sh-dark), inset -12px -12px 24px var(--sh-light);
    padding: 30px;
    position: relative;
    z-index: 5;
    margin-bottom: 20px;
}

.neu-convex {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: 10px 10px 20px var(--sh-dark), -10px -10px 20px var(--sh-light);
    border: 1px solid var(--border-color);
    padding: 25px;
    position: relative;
    z-index: 6;
    transition: all 0.3s ease;
}

.neu-convex:hover {
    transform: translateY(-2px);
    box-shadow: 12px 12px 24px var(--sh-dark), -12px -12px 24px var(--sh-light);
    z-index: 7;
}

/* Cart items with proper stacking */
.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    align-items: center;
    padding: 15px 25px;
    margin-bottom: 20px;
    position: relative;
    z-index: 8;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: 8px 8px 16px var(--sh-dark), -8px -8px 16px var(--sh-light);
    border: 1px solid var(--border-color);
}

/* Shipping cards */
.shipping-card {
    cursor: pointer;
    padding: 20px;
    position: relative;
    z-index: 8;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: 8px 8px 16px var(--sh-dark), -8px -8px 16px var(--sh-light);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    display: block;
}

.shipping-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.shipping-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    z-index: 9;
    box-shadow: 10px 10px 20px var(--sh-dark), -10px -10px 20px var(--sh-light);
}

.shipping-card.active {
    border-color: var(--accent);
    background: var(--bg-primary);
}

.shipping-card label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
}

.shipping-card .shipping-card-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

/* Order summary positioning */
.order-summary {
    position: sticky;
    top: 80px;
    z-index: 10;
}

/* Footer fixes */
footer {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

/* --- SURFACE TYPES --- */
.neu-pressed, .neu-inset {
    box-shadow: inset 6px 6px 12px var(--sh-dark), inset -6px -6px 12px var(--sh-light) !important;
    border: none;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

/* --- PRODUCT CARDS --- */
.cart-item-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: 2px 2px 4px var(--sh-dark), -1px -1px 2px var(--sh-light);
}

.img-container {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    box-shadow: inset 2px 2px 4px var(--sh-dark), inset -1px -1px 2px var(--sh-light);
}

[data-theme="dark"] .img-container {
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
}

/* --- SHIPPING CARDS --- */
.shipping-card i { 
    font-size: 1.5rem; 
    color: var(--accent); 
}

.shipping-card.active {
    box-shadow: inset 4px 4px 10px var(--sh-dark), inset -4px -4px 10px var(--sh-light);
    border-color: var(--accent);
}

/* --- CONTROLS --- */
.stepper {
    display: flex; 
    align-items: center;
    gap: 12px; 
    padding: 8px;
    border-radius: 50px;
    background: var(--bg-primary);
    box-shadow: inset 4px 4px 8px var(--sh-dark), inset -4px -4px 8px var(--sh-light);
}

.btn-circle {
    width: 35px; 
    height: 35px; 
    border-radius: 50%;
    border: none; 
    background: var(--bg-secondary);
    box-shadow: 4px 4px 8px var(--sh-dark), -4px -4px 8px var(--sh-light);
    display: flex; 
    align-items: center; 
    justify-content: center;
    transition: 0.2s;
    color: var(--text-primary);
    cursor: pointer;
}

.btn-circle:active {
    box-shadow: inset 2px 2px 5px var(--sh-dark), inset -2px -2px 5px var(--sh-light);
    transform: scale(0.95);
}

.btn-circle:hover {
    background: var(--accent);
    color: white;
}

/* --- IMPROVED CHECKOUT BUTTON --- */
.btn-checkout-premium {
    background: linear-gradient(145deg, var(--accent), var(--accent-dark));
    color: white !important;
    border: none; 
    border-radius: var(--radius-xl);
    padding: 22px; 
    font-weight: 800;
    width: 100%;
    text-transform: uppercase; 
    letter-spacing: 1px;
    box-shadow: 0 10px 20px rgba(75, 124, 243, 0.3), 6px 6px 12px var(--sh-dark), -6px -6px 12px var(--sh-light);
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

.btn-checkout-premium:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 25px rgba(75, 124, 243, 0.4);
}

.theme-toggle {
    position: fixed; 
    top: 30px; 
    right: 30px;
    width: 50px; 
    height: 50px; 
    cursor: pointer;
    display: flex; 
    align-items: center; 
    justify-content: center;
    z-index: 1000;
    border-radius: 50%;
    background: var(--bg-primary);
    box-shadow: 4px 4px 8px var(--sh-dark), -4px -4px 8px var(--sh-light);
}

.form-control {
    background: var(--bg-primary);
    border: 2px solid var(--sh-dark);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: 0.3s;
}

.form-control:focus {
    background: var(--bg-primary);
    box-shadow: inset 6px 6px 12px var(--sh-dark), inset -6px -6px 12px var(--sh-light) !important;
    outline: none;
    border-color: var(--accent);
}

/* --- UTILITY CLASSES --- */
.text-muted {
    color: var(--text-secondary);
}

.text-success {
    color: #10b981;
}

.text-danger {
    color: #ef4444;
}

.fw-bold {
    font-weight: 700;
}

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }
.ms-2 { margin-left: 0.5rem !important; }
.mt-0 { margin-top: 0 !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.px-2 { padding-left: 0.5rem !important; padding-right: 0.5rem !important; }
.px-3 { padding-left: 1rem !important; padding-right: 1rem !important; }
.py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.g-4 { gap: 1.5rem !important; }
.g-5 { gap: 3rem !important; }
.d-flex { display: flex !important; }
.d-block { display: block !important; }
.d-none { display: none !important; }
.align-items-center { align-items: center !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.text-center { text-align: center !important; }
.small { font-size: 0.875em !important; }
.h3 { font-size: 1.75rem !important; font-weight: 700; }
.h4 { font-size: 1.5rem !important; font-weight: 700; }
.h5 { font-size: 1.25rem !important; font-weight: 700; }
.h6 { font-size: 1.125rem !important; font-weight: 700; }
.rounded-4 { border-radius: var(--radius-md) !important; }
.w-100 { width: 100% !important; }

.sticky-top {
    position: sticky;
    top: 30px;
    z-index: 100;
}

.container {
    max-width: 1340px;
    padding: 0 20px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col-lg-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
    padding: 0 15px;
}

.col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 15px;
}

.col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 15px;
}

/* --- PROMO APPLIED CARD --- */
.promo-applied-card {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(34, 197, 94, 0.03));
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 12px;
    padding: 16px 16px 16px 16px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.1), 0 2px 8px rgba(34, 197, 94, 0.05), inset 0 1px 0 rgba(34, 197, 94, 0.15);
}

.promo-success-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3), 0 1px 4px rgba(34, 197, 94, 0.2);
}

.promo-code-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 8px;
    margin-bottom: 4px;
}

.promo-discount-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.promo-saved-amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: #22c55e;
    margin-bottom: 8px;
    margin-right: 40px; /* Add space for button */
}

.promo-remove-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #ef4444;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.8rem;
    z-index: 10;
}

.promo-remove-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: scale(1.1);
}

.promo-saved-amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: #22c55e;
    margin-bottom: 8px;
}

/* --- THEME TOGGLE BUTTON --- */
.theme-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.theme-toggle-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.1);
}

.theme-toggle-btn i {
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.theme-toggle-btn:hover i {
    color: white;
}

/* --- TOAST NOTIFICATIONS --- */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    min-width: 300px;
    max-width: 400px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-success .toast-content {
    color: var(--success);
}

.toast-success .toast-content i {
    font-size: 1.2rem;
}

.toast-error .toast-content {
    color: var(--danger);
}

.toast-error .toast-content i {
    font-size: 1.2rem;
}

[data-theme="dark"] .toast-notification {
    background: var(--bg-primary);
    border-color: var(--border-color);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    body {
        padding: 20px 0;
    }
    
    .cart-item {
        grid-template-columns: 80px 1fr auto;
        padding: 12px 15px;
    }
    
    .img-container {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-right: 10px;
    }
    
    .btn-checkout-premium {
        padding: 18px;
        font-size: 0.9rem;
    }
}