:root {
    --sidebar-width: 260px;
    --primary: #1a2332;
    --primary-light: #2a3545;
    --accent: #c9a227;
    --accent-hover: #b08f1f;
    --bg: #f0f2f5;
    --white: #ffffff;
    --text: #333;
    --text-muted: #6c757d;
    --border: #dee2e6;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

/* Admin Layout */
.admin-body { display: flex; min-height: 100vh; }

.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-brand {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.brand-icon { font-size: 1.4rem; }

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover { color: #fff; background: rgba(255,255,255,0.05); }
.sidebar-nav a.active { color: var(--accent); background: rgba(201,162,39,0.1); border-left-color: var(--accent); }
.sidebar-nav hr { border: none; border-top: 1px solid rgba(255,255,255,0.1); margin: 0.75rem 1.5rem; }
.nav-icon { font-size: 1.1rem; width: 24px; text-align: center; }

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info { margin-bottom: 0.75rem; }
.user-info strong { display: block; font-size: 0.9rem; }
.user-info small { color: rgba(255,255,255,0.5); font-size: 0.75rem; }

.btn-logout {
    width: 100%;
    padding: 0.5rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.85rem;
    transition: 0.2s;
}

.btn-logout:hover { background: rgba(220,53,69,0.3); border-color: var(--danger); }

.admin-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

.admin-header {
    background: var(--white);
    padding: 1.25rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.admin-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--primary); }

.admin-content { padding: 2rem; }

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

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

.card-header h2 { font-size: 1.1rem; font-weight: 600; }
.card-description { padding: 1rem 1.5rem; color: var(--text-muted); font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.card-form { padding: 1.5rem; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-card-warning { border-left: 4px solid var(--warning); }
.stat-icon { font-size: 2rem; }
.stat-value { display: block; font-size: 1.75rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* Tables */
.table-responsive { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th {
    background: var(--bg);
    padding: 0.85rem 1.25rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tr:hover td { background: #fafbfc; }

.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.inline-form { display: inline; }

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-muted);
}

.badge-published, .badge-replied { background: #d4edda; color: #155724; }
.badge-draft, .badge-new { background: #fff3cd; color: #856404; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: 0.2s;
    font-family: inherit;
    line-height: 1.4;
}

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

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

.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #c82333; }

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

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-block { display: block; width: 100%; text-align: center; }

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 0.4rem; color: var(--text); }
.form-group label small { font-weight: 400; color: var(--text-muted); }

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    transition: 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201,162,39,0.15);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.code-textarea { font-family: 'Courier New', monospace; font-size: 0.85rem; }

.rich-editor {
    min-height: 320px;
    width: 100%;
}

.tox-tinymce {
    border-radius: 8px !important;
    border-color: var(--border) !important;
}

.tox .tox-edit-area__iframe {
    background: var(--white) !important;
}
.error { color: var(--danger); font-size: 0.8rem; margin-top: 0.25rem; display: block; }
.form-hint { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
}

/* Alerts */
.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* Enquiry Detail */
.enquiry-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

.detail-list { padding: 1.5rem; }

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.detail-label { font-weight: 600; font-size: 0.85rem; color: var(--text-muted); }
.detail-value { font-size: 0.9rem; text-align: right; }

.message-box { padding: 0 1.5rem 1.5rem; }
.message-box h3 { font-size: 0.95rem; margin-bottom: 0.75rem; color: var(--primary); }
.message-box p { background: var(--bg); padding: 1rem; border-radius: var(--radius); font-size: 0.9rem; line-height: 1.7; }

.previous-reply { padding: 1rem 1.5rem; background: #f0fff4; border-radius: var(--radius); margin: 1rem 1.5rem 0; }
.previous-reply h4 { font-size: 0.85rem; color: var(--success); margin-bottom: 0.5rem; }
.previous-reply p { font-size: 0.9rem; }
.previous-reply small { color: var(--text-muted); }

/* Login */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.login-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-header { text-align: center; margin-bottom: 2rem; }
.login-header .brand-icon { font-size: 2.5rem; display: block; margin-bottom: 0.5rem; }
.login-header h1 { font-size: 1.5rem; color: var(--primary); }
.login-header p { color: var(--text-muted); font-size: 0.9rem; }

.login-form .form-group { margin-bottom: 1rem; }
.back-link { display: block; text-align: center; margin-top: 1.5rem; color: var(--text-muted); font-size: 0.85rem; text-decoration: none; }
.back-link:hover { color: var(--accent); }

/* Pagination */
nav[role="navigation"] { padding: 1rem 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

code { background: var(--bg); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.85rem; }

.card-description {
    padding: 1rem 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.submenu-row td {
    background: #f8fafc;
    color: var(--text-muted);
}

.submenu-row td:first-child {
    color: var(--text);
}

@media (max-width: 1024px) {
    .enquiry-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-main { margin-left: 0; }
    .form-row { grid-template-columns: 1fr; }
    .admin-content { padding: 1rem; }
}