/* ============================================
   ShopHub - Main Stylesheet
   Multi-Vendor eCommerce Template
   ============================================ */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-dark: #1e40af;
    
    /* Secondary Colors */
    --secondary-color: #64748b;
    --secondary-hover: #475569;
    
    /* Status Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Neutral Colors */
    --dark-color: #1e293b;
    --gray-900: #0f172a;
    --gray-800: #1e293b;
    --gray-700: #334155;
    --gray-600: #475569;
    --gray-500: #64748b;
    --gray-400: #94a3b8;
    --gray-300: #cbd5e1;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --gray-50: #f8fafc;
    --white: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Border Colors */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadow */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Font Family */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-ar: 'Cairo', 'Inter', sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Container */
    --container-max: 100%;
    --container-padding: 2rem;
    
    /* Header Height */
    --header-height: 140px;
    --header-height-sticky: 70px;
}

/* RTL Variables */
[dir="rtl"] {
    --font-family: 'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

[dir="rtl"] body {
    font-family: var(--font-family-ar);
}

main {
    flex: 1;
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--spacing-md);
}

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger { color: var(--danger-color) !important; }

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-sm {
    padding: var(--spacing-xl) 0;
}

.section-lg {
    padding: 4rem 0;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

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

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

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

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

.btn-outline-secondary:hover {
    background-color: var(--gray-100);
    color: var(--text-primary);
}

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

.btn-success:hover {
    background-color: #059669;
    color: var(--white);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    color: var(--white);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--text-base);
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: var(--text-xs);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-icon-sm {
    width: 32px;
    height: 32px;
}

.btn-icon-lg {
    width: 48px;
    height: 48px;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

[dir="rtl"] .form-select {
    background-position: left 0.5rem center;
    padding-right: 0.875rem;
    padding-left: 2.5rem;
}

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

.form-error {
    font-size: var(--text-xs);
    color: var(--danger-color);
    margin-top: var(--spacing-xs);
}

/* ============================================
   Cards
   ============================================ */
.card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

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

.card-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

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

.card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.625rem;
    font-size: var(--text-xs);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-secondary {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-info {
    background-color: #cffafe;
    color: #0e7490;
    border: 1px solid #a5f3fc;
}

/* ============================================
   Tables
   ============================================ */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

[dir="rtl"] .table th,
[dir="rtl"] .table td {
    text-align: right;
}

.table th {
    font-weight: 600;
    background-color: var(--bg-secondary);
}

.table tbody tr:hover {
    background-color: var(--bg-tertiary);
}

/* ============================================
   Utilities
   ============================================ */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-end { justify-content: flex-end !important; }
.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }
.gap-5 { gap: 2rem !important; }

.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }
[dir="rtl"] .text-start { text-align: right !important; }
[dir="rtl"] .text-end { text-align: left !important; }

.fw-normal { font-weight: 400 !important; }
.fw-medium { font-weight: 500 !important; }
.fw-semibold { font-weight: 600 !important; }
.fw-bold { font-weight: 700 !important; }

.fs-xs { font-size: var(--text-xs) !important; }
.fs-sm { font-size: var(--text-sm) !important; }
.fs-base { font-size: var(--text-base) !important; }
.fs-lg { font-size: var(--text-lg) !important; }
.fs-xl { font-size: var(--text-xl) !important; }
.fs-2xl { font-size: var(--text-2xl) !important; }
.fs-3xl { font-size: var(--text-3xl) !important; }

.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }

.h-100 { height: 100% !important; }

.m-0 { margin: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 2rem !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: 2rem !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 2rem !important; }

.rounded { border-radius: var(--radius) !important; }
.rounded-md { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

.shadow { box-shadow: var(--shadow) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

.overflow-hidden { overflow: hidden !important; }
.overflow-auto { overflow: auto !important; }

.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }

.cursor-pointer { cursor: pointer !important; }

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.animate-fadeIn { animation: fadeIn var(--transition-slow) ease-out; }
.animate-fadeInUp { animation: fadeInUp var(--transition-slow) ease-out; }
.animate-fadeInDown { animation: fadeInDown var(--transition-slow) ease-out; }
.animate-slideInLeft { animation: slideInLeft var(--transition-slow) ease-out; }
.animate-slideInRight { animation: slideInRight var(--transition-slow) ease-out; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-bounce { animation: bounce 1s infinite; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1199.98px) {
    :root {
        --container-padding: 1.5rem;
    }
}

@media (min-width: 1400px) {
    .container {
        max-width: 1600px;
        padding: 0 3rem;
    }
}

@media (max-width: 991.98px) {
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 767.98px) {
    :root {
        --container-padding: 0.75rem;
    }
    
    h1 { font-size: var(--text-2xl); }
    h2 { font-size: var(--text-xl); }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 575.98px) {
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .btn-lg {
        padding: 0.625rem 1.25rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    img {
        max-width: 100% !important;
    }
    
    h2,
    h3 {
        page-break-after: avoid;
    }
}