/* CSS Variables for Theming */
:root {
    /* Light Theme (Default) */
    --bg-body: #f3f4f6;
    --bg-card: #ffffff;
    --bg-header: #1e293b;
    /* Dark header always looks good or can switch */

    --text-main: #1f2937;
    --text-muted: #6b7280;
    --text-light: #9ca3af;

    --border-color: #e5e7eb;
    --primary-color: #3b82f6;
    --accent-color: #f59e0b;

    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --hover-bg: #f9fafb;

    --input-bg: #ffffff;
    --input-border: #d1d5db;

    --table-head-bg: #f8fafc;
    --table-strip-bg: #f1f5f9;
}

[data-theme="dark"] {
    /* Dark Theme Override */
    --bg-body: #0f172a;
    /* Slate 900 */
    --bg-card: #1e293b;
    /* Slate 800 */
    --bg-header: #0f172a;

    --text-main: #f3f4f6;
    --text-muted: #94a3b8;
    --text-light: #64748b;

    --border-color: #334155;
    --primary-color: #60a5fa;
    /* Lighter blue for dark mode */
    --accent-color: #fbbf24;

    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.18);
    --hover-bg: #334155;

    --input-bg: #1e293b;
    --input-border: #475569;

    --table-head-bg: #1e293b;
    --table-strip-bg: #1e293b;
    /* Usually plain in dark mode or slightly lighter */
}

/* Global Styles */
body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

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

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

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

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

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

/* Navbar */
.navbar-custom {
    background-color: var(--bg-header);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff !important;
}

.navbar-brand span {
    color: var(--primary-color);
}

.nav-link {
    color: rgba(255, 255, 255, 0.7) !important;
    font-weight: 500;
    margin-right: 1rem;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
}

/* Theme Toggle Button */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Cards & Containers */
.card-custom {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card-header-custom {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body-custom {
    padding: 1.5rem;
}

/* Inputs */
.form-control-custom {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-main);
    padding: 0.75rem 1rem;
    border-radius: 8px;
}

.form-control-custom:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Tables */
.table-custom {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-custom th {
    background-color: var(--table-head-bg);
    color: var(--text-muted);
    font-weight: 600;
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.table-custom td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table-custom tr:hover td {
    background-color: var(--hover-bg);
}

/* Badge */
.badge-custom {
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    border-radius: 6px;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Search Results UI */
.search-results-dropdown {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.search-result-item {
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color);
}

.search-result-item:hover {
    background-color: var(--hover-bg);
}

.result-code {
    color: var(--primary-color);
    font-weight: 700;
}

/* Stats Widget */
.stat-widget {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.widget-title {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.widget-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

/* Modern Table Card */
.modern-table-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.modern-table {
    width: 100%;
    margin-bottom: 0;
}

.modern-table thead th {
    background-color: var(--table-head-bg);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modern-table tbody td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    color: var(--text-main);
}

.modern-table tbody tr:last-child td {
    border-bottom: none;
}

.badge-fon-tip {
    font-size: 0.75rem;
    padding: 2px 6px;
    background-color: var(--hover-bg);
    color: var(--text-muted);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {

    /* General Layout */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Navbar */
    .navbar-custom {
        padding: 0.75rem 0;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    /* Typography */
    h1,
    .h1 {
        font-size: 1.75rem;
    }

    h2,
    .h2 {
        font-size: 1.5rem;
    }

    h3,
    .h3 {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.4rem !important;
        /* Override inline styles if any */
    }

    /* Cards */
    .card-header-custom,
    .card-body-custom {
        padding: 1rem;
    }

    /* Tables */
    .table-custom th,
    .table-custom td {
        padding: 0.75rem 0.5rem;
        /* Reduce padding to fit more content */
        font-size: 0.85rem;
    }

    .fon-badge-code {
        padding: 2px 6px;
        font-size: 0.75rem;
    }

    /* Forms & Inputs */
    .form-control-custom {
        font-size: 0.95rem;
    }
}