/* AngloAI - Unified Styling
   Minimalist design with a friendly, modern color palette */

:root {
    /* Primary Colors - Warm, friendly teal/green */
    --primary-color: #0d9488;
    --primary-hover: #0f766e;
    --primary-light: #99f6e4;
    --primary-bg: #f0fdfa;

    /* Secondary Colors - Soft purple accent */
    --secondary-color: #7c3aed;
    --secondary-hover: #6d28d9;
    --secondary-light: #ddd6fe;

    /* Neutral Colors */
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;

    /* Status Colors */
    --success-color: #10b981;
    --success-bg: #d1fae5;
    --warning-color: #f59e0b;
    --warning-bg: #fef3c7;
    --danger-color: #ef4444;
    --danger-bg: #fee2e2;
    --info-color: #3b82f6;
    --info-bg: #dbeafe;

    /* Score Colors (CEFR) */
    --score-excellent: #059669;
    --score-good: #10b981;
    --score-average: #f59e0b;
    --score-below: #f97316;
    --score-poor: #ef4444;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* Base Styles */
body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Navbar */
.navbar {
    background-color: var(--card-bg) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 600;
    color: var(--primary-color) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    background-color: var(--primary-bg);
}

.nav-link.active {
    color: var(--primary-color) !important;
    background-color: var(--primary-bg);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.card-header h3,
.card-header h4,
.card-header h5 {
    margin: 0;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.2);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-hover);
    border-color: var(--secondary-hover);
}

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

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

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

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

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

.btn-info:hover {
    background-color: #2563eb;
    border-color: #2563eb;
}

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

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

/* Form Controls */
.form-control,
.form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.625rem 1rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Tables */
.table {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table thead th {
    background-color: var(--bg-color);
    border-bottom: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(248, 250, 252, 0.5);
}

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

/* Alerts */
.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: var(--success-bg);
    color: #065f46;
}

.alert-danger {
    background-color: var(--danger-bg);
    color: #991b1b;
}

.alert-warning {
    background-color: var(--warning-bg);
    color: #92400e;
}

.alert-info {
    background-color: var(--info-bg);
    color: #1e40af;
}

/* Badges - Score Colors */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
    border-radius: var(--radius-sm);
}

.badge-score-excellent {
    background-color: var(--score-excellent) !important;
    color: white;
}

.badge-score-good {
    background-color: var(--score-good) !important;
    color: white;
}

.badge-score-average {
    background-color: var(--score-average) !important;
    color: white;
}

.badge-score-below {
    background-color: var(--score-below) !important;
    color: white;
}

.badge-score-poor {
    background-color: var(--score-poor) !important;
    color: white;
}

/* Page Headers */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Logo Container */
.logo-container {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-container img {
    max-height: 80px;
    transition: transform 0.2s ease;
}

.logo-container img:hover {
    transform: scale(1.02);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer img {
    height: 20px;
    vertical-align: middle;
    opacity: 0.7;
}

/* OCR Content Box */
.ocr-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
}

/* Score Cards */
.score-card {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    transition: transform 0.2s ease;
}

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

.score-card .score-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.score-card .score-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1050;
}

.loading-overlay .spinner-container {
    text-align: center;
    color: white;
}

.loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-light);
}

/* Stats Cards */
.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.stat-card.secondary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-hover) 100%);
}

.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.stat-card .stat-label {
    opacity: 0.9;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Image Preview */
.image-preview {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.image-preview img {
    width: 100%;
    height: auto;
}

/* Action Buttons Group */
.action-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.75rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
    }
}

/* Utility Classes */
.text-primary-custom {
    color: var(--primary-color) !important;
}

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

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