/* ============================================
   BK8Th Admin Panel - Styles
   ============================================ */

:root {
    --admin-bg: #0F172A;
    --admin-surface: #1E293B;
    --admin-surface-2: #334155;
    --admin-border: #475569;
    --admin-text: #E2E8F0;
    --admin-text-muted: #94A3B8;
    --admin-primary: #3B82F6;
    --admin-primary-dark: #2563EB;
    --admin-success: #22C55E;
    --admin-warning: #F59E0B;
    --admin-danger: #EF4444;
    --admin-purple: #8B5CF6;
    --admin-orange: #F97316;
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-th: 'Noto Sans Thai', sans-serif;
    --font-en: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-th);
    background: var(--admin-bg);
    color: var(--admin-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--admin-surface);
    border-right: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    font-family: var(--font-en);
    font-weight: 900;
    font-size: 28px;
}

.logo-bk {
    color: var(--admin-text);
}

.logo-8 {
    color: #C41E24;
    font-size: 32px;
}

.sidebar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--admin-text-muted);
    background: var(--admin-surface-2);
    padding: 3px 10px;
    border-radius: 6px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--admin-text-muted);
    transition: var(--transition);
    cursor: pointer;
}

.sidebar-link:hover {
    background: var(--admin-surface-2);
    color: var(--admin-text);
}

.sidebar-link.active {
    background: var(--admin-primary);
    color: white;
}

.sidebar-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--admin-border);
}

/* ---- Main ---- */
.admin-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
}

.admin-header {
    height: var(--header-height);
    background: var(--admin-surface);
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--admin-text);
    font-size: 24px;
    cursor: pointer;
}

.admin-page-title {
    font-size: 18px;
    font-weight: 700;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--admin-text-muted);
}

.admin-avatar {
    width: 36px;
    height: 36px;
    background: var(--admin-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 14px;
}

.admin-content {
    padding: 24px;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

/* ---- Stats Grid ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--admin-surface);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--admin-border);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    font-size: 32px;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-blue .stat-icon {
    background: rgba(59, 130, 246, 0.15);
}

.stat-green .stat-icon {
    background: rgba(34, 197, 94, 0.15);
}

.stat-purple .stat-icon {
    background: rgba(139, 92, 246, 0.15);
}

.stat-orange .stat-icon {
    background: rgba(249, 115, 22, 0.15);
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 800;
    font-family: var(--font-en);
}

.stat-blue .stat-info h3 {
    color: var(--admin-primary);
}

.stat-green .stat-info h3 {
    color: var(--admin-success);
}

.stat-purple .stat-info h3 {
    color: var(--admin-purple);
}

.stat-orange .stat-info h3 {
    color: var(--admin-orange);
}

.stat-info p {
    font-size: 13px;
    color: var(--admin-text-muted);
}

/* ---- Cards ---- */
.card {
    background: var(--admin-surface);
    border-radius: var(--radius);
    border: 1px solid var(--admin-border);
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--admin-border);
}

.card-header h2 {
    font-size: 16px;
    font-weight: 700;
}

.card-body {
    padding: 24px;
}

/* ---- Tables ---- */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--admin-border);
    font-size: 14px;
}

.admin-table th {
    color: var(--admin-text-muted);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table td {
    color: var(--admin-text);
}

.status-active {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(34, 197, 94, 0.15);
    color: var(--admin-success);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* ---- Forms ---- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--admin-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--admin-bg);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    color: var(--admin-text);
    font-family: var(--font-th);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-group small {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--admin-text-muted);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* ---- Buttons ---- */
.btn-admin {
    padding: 10px 20px;
    border-radius: 8px;
    font-family: var(--font-th);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-save {
    background: var(--admin-primary);
    color: white;
}

.btn-save:hover {
    background: var(--admin-primary-dark);
    transform: translateY(-1px);
}

.btn-reset {
    background: var(--admin-surface-2);
    color: var(--admin-text);
    border: 1px solid var(--admin-border);
}

.btn-reset:hover {
    background: var(--admin-border);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--admin-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

.btn-add {
    background: var(--admin-success);
    color: white;
    font-size: 13px;
    padding: 8px 16px;
}

.btn-add:hover {
    background: #16A34A;
}

.btn-export {
    background: rgba(139, 92, 246, 0.15);
    color: var(--admin-purple);
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.btn-export:hover {
    background: rgba(139, 92, 246, 0.25);
}

.btn-cancel {
    background: var(--admin-surface-2);
    color: var(--admin-text-muted);
}

.btn-edit,
.btn-delete {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    border: none;
    font-family: var(--font-th);
}

.btn-edit {
    background: rgba(59, 130, 246, 0.15);
    color: var(--admin-primary);
}

.btn-delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--admin-danger);
}

/* ---- Promo List ---- */
.promo-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.promo-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--admin-bg);
    border-radius: 8px;
    border: 1px solid var(--admin-border);
}

.promo-item-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.promo-item-info p {
    font-size: 13px;
    color: var(--admin-text-muted);
}

.promo-item-actions {
    display: flex;
    gap: 8px;
}

/* ---- Modal ---- */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--admin-text-muted);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
}

/* ---- Settings ---- */
.settings-group {
    margin-bottom: 24px;
}

.settings-group h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--admin-text);
}

.settings-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

hr {
    border: none;
    border-top: 1px solid var(--admin-border);
    margin: 24px 0;
}

/* ---- Toast ---- */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--admin-success);
    color: white;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 300;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .admin-main {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .settings-actions {
        flex-direction: column;
    }
}