/* ============================================
   Smart BI - Main Stylesheet
   ============================================ */

:root {
    /* Light Mode Variables */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-soft: #dbeafe;
    --success-color: #10b981;
    --success-soft: #d1fae5;
    --warning-color: #f59e0b;
    --warning-soft: #fef3c7;
    --purple-color: #8b5cf6;
    --purple-soft: #ede9fe;
    --danger-color: #ef4444;
    --danger-soft: #fee2e2;
    
    /* Light Mode Backgrounds */
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 var(--shadow-color);
    --shadow-md: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -1px var(--shadow-color);
    --shadow-lg: 0 10px 15px -3px var(--shadow-color), 0 4px 6px -2px var(--shadow-color);
    --shadow-xl: 0 20px 25px -5px var(--shadow-color), 0 10px 10px -5px var(--shadow-color);
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-light: #93c5fd;
    --primary-soft: #1e293b;
    --success-color: #34d399;
    --success-soft: #065f46;
    --warning-color: #fbbf24;
    --warning-soft: #854d0e;
    --purple-color: #c084fc;
    --purple-soft: #581c87;
    --danger-color: #f87171;
    --danger-soft: #991b1b;
    
    /* Dark Mode Backgrounds */
    --bg-white: #0a0a0f;
    --bg-light: #14141a;
    --bg-gray: #1f1f2a;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #2d2d3a;
    --card-bg: #14141a;
    --input-bg: #1f1f2a;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

/* General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-gray);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    color: var(--text-primary);
    font-size: 1.2rem;
}

.theme-toggle-btn:hover {
    transform: rotate(15deg);
    background: var(--primary-soft);
    color: var(--primary-color);
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    transition: var(--transition-normal);
}

[data-theme="dark"] .navbar {
    background: rgba(15, 15, 18, 0.95);
}

.navbar-brand {
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.navbar-brand:hover {
    color: var(--primary-color);
    transform: translateY(-1px);
}

.navbar-brand img {
    object-fit: contain;
    transition: var(--transition-fast);
    border-radius: 8px;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.border-start {
    border-left: 2px solid var(--border-color) !important;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

[data-theme="dark"] .hero-section::before {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, 20px); }
}

.hero-badge {
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--purple-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    animation: fadeInUp 0.6s ease-out 0.2s both;
    color: var(--text-secondary);
}

/* Upload Card */
.upload-card {
    border: none;
    border-radius: 24px;
    background: var(--card-bg);
    transition: var(--transition-normal);
    animation: fadeInUp 0.6s ease-out 0.3s both;
    box-shadow: var(--shadow-lg);
}

.upload-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl) !important;
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 50px 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    background: var(--bg-light);
    text-align: center;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--primary-soft);
    transform: scale(0.98);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-soft);
    transform: scale(0.98);
}

.upload-area.is-invalid {
    border-color: var(--danger-color);
    background: var(--danger-soft);
}

.upload-icon-wrapper i {
    transition: var(--transition-normal);
}

.upload-area:hover .upload-icon-wrapper i {
    transform: translateY(-5px);
}

/* Form Controls */
.input-group-icon {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-left: none;
    padding: 0 15px;
    display: flex;
    align-items: center;
    border-radius: 12px 0 0 12px;
}

.form-control {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0 12px 12px 0;
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    background: var(--input-bg);
    color: var(--text-primary);
}

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

.form-control-lg {
    padding: 14px 20px;
    font-size: 1.1rem;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    padding: 14px 30px;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    color: white;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.7;
    transform: none;
}

/* Stat Cards */
.stat-card {
    border: none;
    border-radius: 20px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--card-bg);
}

[data-theme="dark"] .stat-card {
    background: linear-gradient(135deg, #1a1a24 0%, #14141a 100%);
    border: 1px solid rgba(96, 165, 250, 0.1);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg) !important;
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card-primary::before { color: var(--primary-color); }
.stat-card-success::before { color: var(--success-color); }
.stat-card-warning::before { color: var(--warning-color); }
.stat-card-purple::before { color: var(--purple-color); }

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 16px;
}

.stat-card-primary .stat-icon {
    background: var(--primary-soft);
    color: var(--primary-color);
}

.stat-card-success .stat-icon {
    background: var(--success-soft);
    color: var(--success-color);
}

.stat-card-warning .stat-icon {
    background: var(--warning-soft);
    color: var(--warning-color);
}

.stat-card-purple .stat-icon {
    background: var(--purple-soft);
    color: var(--purple-color);
}

.stat-trend {
    font-size: 0.75rem;
    margin-top: 8px;
    display: inline-block;
}

.stat-card h2 {
    color: var(--text-primary);
    font-weight: 700;
}

/* Chart & Cards */
.chart-card,
.top-products-card,
.insight-card {
    border-radius: 20px;
    transition: var(--transition-normal);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.chart-card:hover,
.top-products-card:hover,
.insight-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg) !important;
}

.chart-container {
    position: relative;
    height: 350px;
    width: 100%;
}

/* AI Badge */
.ai-badge {
    background: linear-gradient(135deg, var(--primary-soft) 0%, var(--purple-soft) 100%);
    color: var(--primary-color);
    font-size: 0.85rem;
    padding: 8px 16px;
    border-radius: 30px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.ai-badge:hover {
    transform: scale(1.05);
}

/* Additional Styles */
.bg-soft-primary {
    background: var(--primary-soft);
    color: var(--primary-color);
}

.bg-soft-blue {
    background: var(--primary-soft);
}

.dashboard-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Top Products List */
#val-top-list .list-group-item {
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--border-color) !important;
    background: transparent;
    color: var(--text-primary);
}

#val-top-list .list-group-item:hover {
    background: var(--bg-gray);
    transform: translateX(-5px);
}

#val-top-list .badge {
    background: var(--bg-gray);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-weight: 600;
    border: 1px solid var(--border-color);
}

/* Error Feedback */
.error-feedback {
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 10px;
    display: none;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

#loading-spinner {
    display: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

#dashboard {
    animation: fadeIn 0.8s ease-out;
}

/* Skeleton Loader */
.skeleton-loader {
    background: linear-gradient(90deg, var(--bg-gray) 25%, var(--border-color) 50%, var(--bg-gray) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Dark Mode Specific Text Colors */
[data-theme="dark"] .text-muted {
    color: var(--text-muted) !important;
}

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

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

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

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

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

[data-theme="dark"] #val-insight {
    color: var(--text-secondary);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0 30px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .stat-card h2 {
        font-size: 1.5rem;
    }
    
    .upload-area {
        padding: 30px 15px;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
    }
    
    .stat-icon i {
        font-size: 1.25rem;
    }
    
    .ai-badge {
        font-size: 0.7rem;
     .hover-lift {   padding: 6px 12px;
    }
    
    .dashboard-title {
        font-size: 1.5rem;
    }
    
    .theme-toggle-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .upload-card {
        padding: 1rem !important;
    }
    
    .stat-card {
        padding: 1rem !important;
    }
    
    .stat-card h2 {
        font-size: 1.25rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero-section,
    .btn,
    .ai-badge,
    .theme-toggle-btn {
        display: none;
    }
    
    #dashboard {
        display: block !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid var(--border-color) !important;
    }
}

/* Accessibility */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Utility Classes */
.hover-lift {
    transition: var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-2px);
}

.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .glass-effect {
    background: rgba(15, 15, 18, 0.8);
    border-color: rgba(255, 255, 255, 0.05);
}

/* ============================================
   Guidance Section Styles
   ============================================ */

/* Formatting of Guideline Elements */
.guidance-item {
    transition: var(--transition-fast);
}

.guidance-item:hover {
    transform: translateX(-5px);
}

.guidance-item code {
    font-family: 'Cairo', monospace;
    font-size: 0.85rem;
    background: var(--bg-gray) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.guidance-item:hover code {
    border-color: var(--primary-color);
    background: var(--primary-soft) !important;
}

/* Guidelines area format in dark mode */
[data-theme="dark"] .guidance-item code {
    background: var(--bg-gray) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color);
}

[data-theme="dark"] .guidance-item:hover code {
    border-color: var(--primary-color);
    background: rgba(96, 165, 250, 0.1) !important;
}

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

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

/* explanatory alert format */
.bg-soft-info {
    background: linear-gradient(135deg, rgba(13, 202, 240, 0.1) 0%, rgba(13, 202, 240, 0.05) 100%);
    border: 1px solid rgba(13, 202, 240, 0.2);
}

[data-theme="dark"] .bg-soft-info {
    background: linear-gradient(135deg, rgba(13, 202, 240, 0.05) 0%, rgba(13, 202, 240, 0.02) 100%);
    border: 1px solid rgba(13, 202, 240, 0.15);
}

/* Icon and color formatting */
.guidance-item i {
    font-size: 1.1rem;
}

/* Improvements for phones */
@media (max-width: 768px) {
    .guidance-item code {
        font-size: 0.75rem;
        padding: 0.5rem !important;
    }
    
    .guidance-item .fw-semibold {
        font-size: 0.8rem;
    }
}


/* ============================================
   Auth Page Styles
   ============================================ */

   
.auth-page {
    background: var(--bg-light);
    min-height: 100vh;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 32px;
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.auth-logo-wrapper {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-soft) 0%, var(--purple-soft) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: var(--transition-normal);
}

.auth-logo-wrapper img {
    border-radius: 50%;
    transition: var(--transition-normal);
}

.auth-logo-wrapper:hover {
    transform: scale(1.05);
}

.auth-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 1.5rem;
}

.toggle-auth-link {
    color: var(--primary-color);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.toggle-auth-link:hover {
    color: var(--primary-light);
    transform: translateX(-5px);
}

/* Logout Button */
.logout-btn {
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    color: var(--text-primary);
    font-size: 1.2rem;
}

.logout-btn:hover {
    transform: rotate(15deg);
    background: var(--danger-soft);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

[data-theme="dark"] .logout-btn:hover {
    background: rgba(248, 113, 113, 0.2);
    color: #f87171;
}

/* Auth Form Improvements */
.auth-card .form-control {
    border-radius: 12px;
    padding: 12px 16px;
}

.auth-card .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.auth-card .btn-primary {
    border-radius: 12px;
    padding: 12px;
    font-size: 1rem;
}

/* User Email Display */
.user-email {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 5px 12px;
    background: var(--bg-gray);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

/* Responsive Auth Page */
@media (max-width: 576px) {
    .auth-card {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .auth-logo-wrapper {
        width: 70px;
        height: 70px;
    }
    
    .auth-logo-wrapper img {
        height: 50px;
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
}