/* ============================================
   IMAGIA DESIGN SYSTEM
   Minimalist, professional design for real estate photo processing
   ============================================ */

/* ===== ROOT VARIABLES ===== */
:root {
    /* Primary Colors - Based on Imagia brand (#2E1BBF) */
    --primary-50: #f5f3ff;
    --primary-100: #ede9fe;
    --primary-200: #ddd6fe;
    --primary-300: #c4b5fd;
    --primary-400: #a78bfa;
    --primary-500: #8b5cf6;
    --primary-600: #2E1BBF;
    --primary-700: #251590;
    --primary-800: #1d1070;
    --primary-900: #160b50;
    --primary: var(--primary-600);
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Semantic Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --error: #ef4444;
    --error-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* Background - Clean white for high contrast */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f5f5f5;
    
    /* Text Colors - High contrast for readability */
    --text-primary: #000000;
    --text-secondary: var(--gray-700);
    --text-tertiary: var(--gray-600);
    --text-inverse: #ffffff;
    
    /* Border */
    --border-color: var(--gray-200);
    --border-light: var(--gray-100);
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Shadows - More prominent for depth */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.18);
    --shadow-xl: 0 12px 24px 0 rgba(0, 0, 0, 0.22);
    
    /* Spacing (matching Bootstrap's scale) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Typography */
    --font-sans: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ===== BASE STYLES ===== */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

h1 { font-size: 2.25rem; font-weight: 700; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-4);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-700);
}

/* ===== LAYOUT COMPONENTS ===== */

/* Navbar */
.navbar {
    background: var(--bg-primary) !important;
    border-bottom: 2px solid var(--gray-200);
    padding: var(--space-4) var(--space-6);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transition: opacity var(--transition-fast);
}

.navbar-brand:hover {
    opacity: 0.8;
}

.navbar-brand img {
    height: 36px;
    width: auto;
}

.navbar-brand svg {
    height: 36px;
    width: auto;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.card-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-4) var(--space-6);
    font-weight: 600;
}

.card-body {
    padding: var(--space-6);
}

/* Buttons */
.btn {
    font-family: var(--font-sans);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    padding: var(--space-3) var(--space-5);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    border-width: 2px;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: var(--primary-700);
    border-color: var(--primary-700);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 27, 191, 0.3);
}

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

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

/* Tables */
.table {
    background: var(--bg-primary);
}

.table thead th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    padding: var(--space-4);
}

.table tbody tr {
    border-bottom: 1px solid var(--border-light);
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
    cursor: pointer;
}

.table tbody td {
    padding: var(--space-4);
    vertical-align: middle;
}

/* Badges */
.badge {
    font-weight: 600;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--border-radius-md);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid transparent;
}

.badge.bg-success {
    background: #059669 !important;
    border-color: #047857;
}

.badge.bg-primary {
    background: var(--primary) !important;
    border-color: var(--primary-700);
}

.badge.bg-warning {
    background: #f59e0b !important;
    border-color: #d97706;
    color: #000 !important;
}

.badge.bg-danger {
    background: #dc2626 !important;
    border-color: #b91c1c;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: var(--space-12);
    background: var(--bg-primary);
    transition: all var(--transition-base);
    text-align: center;
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-50);
    box-shadow: var(--shadow-lg);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: var(--space-4);
    transition: transform var(--transition-base);
}

.upload-zone:hover .upload-icon {
    transform: scale(1.1);
}

/* Progress Bars */
.progress {
    background: var(--gray-200);
    border-radius: var(--border-radius-lg);
    height: 0.75rem;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
    transition: width var(--transition-slow);
}

/* Modals */
.modal-content {
    border: none;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-6);
}

.modal-body {
    padding: var(--space-6);
}

.modal-backdrop.show {
    opacity: 0.7;
}

/* Footer */
.footer {
    background: #6c757d;
    border-top: 2px solid var(--border-color);
    padding: var(--space-8) 0;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.footer,
.footer p,
.footer a,
.footer .small {
    color: #ffffff !important;
}

/* Toast Notifications */
.toast-container {
    max-width: 400px;
}

.toast {
    border: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    animation: slideInUp 0.3s ease-out;
}

.toast-header {
    font-weight: 600;
    padding: var(--space-3) var(--space-4);
}

.toast-body {
    padding: var(--space-4);
    background: #ffffff;
    color: var(--text-primary);
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.text-primary {
    color: var(--primary) !important;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
}

.border-dashed {
    border-style: dashed !important;
}

/* Smooth transitions for interactive elements */
button, a, input, select, textarea {
    transition: all var(--transition-fast);
}

/* Focus states */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-300);
    outline-offset: 2px;
}

/* Image tiles hover effect */
.image-card {
    transition: all var(--transition-base);
}

.image-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg) !important;
}

/* Loading animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Fade-in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Container max-width for better readability */
.container-narrow {
    max-width: 1200px;
    margin: 0 auto;
}