/* Modern Design System - Pax Dei Market Checker */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-color: #2563eb;
    --secondary: #64748b;
    --secondary-color: #764ba2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navigation Bar */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
    padding-top: 0;
    padding-bottom: 0;
    z-index: 1030;
}

.navbar.sticky-top {
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    transition: color 0.2s;
}

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

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

/* Container */
.container, .container-fluid {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 2.25rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 1.875rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.5rem;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    border: none;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, var(--success) 100%);
    transform: translateY(-1px);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: white;
}

.btn-warning:hover {
    background: linear-gradient(135deg, #d97706 0%, var(--warning) 100%);
    transform: translateY(-1px);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, var(--danger) 100%);
    transform: translateY(-1px);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info) 0%, #0891b2 100%);
    color: white;
}

.btn-info:hover {
    background: linear-gradient(135deg, #0891b2 0%, var(--info) 100%);
    transform: translateY(-1px);
    color: white;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    transform: translateY(-1px);
    color: var(--text-secondary);
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.125rem;
}

/* Tables */
.table-responsive {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table {
    margin-bottom: 0;
    background: var(--bg-primary);
}

.table thead th {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    color: var(--text-primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.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: var(--bg-secondary);
}

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

/* DataTables customization */
.dataTables_wrapper {
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
}

.dataTables_filter input,
.dataTables_length select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.dataTables_filter input:focus,
.dataTables_length select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.dataTables_info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.dataTables_paginate .paginate_button {
    padding: 0.5rem 0.875rem;
    margin: 0 0.125rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary) !important;
}

.dataTables_paginate .paginate_button:hover {
    background: var(--bg-secondary) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

.dataTables_paginate .paginate_button.current {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    color: white !important;
}

/* Forms */
.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.625rem 0.875rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Alerts */
.alert {
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    border: none;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.alert-info {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(8, 145, 178, 0.1) 100%);
    color: var(--info);
    border-left: 4px solid var(--info);
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
    color: var(--success);
    border-left: 4px solid var(--success);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(217, 119, 6, 0.1) 100%);
    color: var(--warning);
    border-left: 4px solid var(--warning);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    color: var(--danger);
    border-left: 4px solid var(--danger);
}

/* Badges */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.bg-success {
    background: var(--success) !important;
}

.bg-warning {
    background: var(--warning) !important;
}

.bg-danger {
    background: var(--danger) !important;
}

.bg-info {
    background: var(--info) !important;
}

/* Pagination */
.pagination .page-link {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    margin: 0 0.125rem;
    padding: 0.5rem 0.875rem;
}

.pagination .page-link:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Utilities */
.text-muted {
    color: var(--text-muted) !important;
}

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-color) 50%, transparent 100%);
    margin: 2rem 0;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
}

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

.stats-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Code */
code {
    background: var(--bg-secondary);
    color: var(--danger);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    font-family: 'Monaco', 'Courier New', monospace;
}

pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    overflow-x: auto;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 1.75rem;
    }
    
    .container, .container-fluid {
        padding: 1rem;
        margin-top: 1rem;
    }
}