/* ============================================================
   電訊銷售平台 CMS — 全站自訂樣式
   背景: #161616 | 文字: #D6D6D6
   強調色: #F4E05D (黃) | #EF5D60 (紅) | #83F1FF (青)
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --bg-dark: #161616;
    --bg-card: #1e1e1e;
    --bg-card-hover: #252525;
    --bg-input: #222222;
    --border-color: #333333;
    --border-light: #444444;
    --text-primary: #D6D6D6;
    --text-secondary: #999999;
    --text-muted: #666666;
    --text-white: #FFFFFF;
    --color-yellow: #F4E05D;
    --color-red: #EF5D60;
    --color-cyan: #83F1FF;
    --color-yellow-dark: #d4c24e;
    --color-red-dark: #d14a4d;
    --color-cyan-dark: #6ad4e0;
    --color-success: #4caf50;
    --color-warning: #F4E05D;
    --color-danger: #EF5D60;
    --color-info: #83F1FF;
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.4);
    --transition: all 0.2s ease;
}

/* ---- Global Reset ---- */
* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--color-cyan);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--color-cyan-dark);
    text-decoration: underline;
}

::selection {
    background: var(--color-yellow);
    color: var(--bg-dark);
}

img { max-width: 100%; height: auto; }

/* ============================================================
   HEADER / NAVBAR
   ============================================================ */
.navbar-dark-custom {
    background-color: #111111 !important;
    border-bottom: 1px solid var(--border-color);
    padding: 0.6rem 0;
}
.navbar-dark-custom .navbar-brand {
    color: var(--color-yellow);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}
.navbar-dark-custom .navbar-brand:hover {
    color: var(--color-yellow-dark);
}
.navbar-dark-custom .nav-link {
    color: var(--text-primary) !important;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.navbar-dark-custom .nav-link:hover,
.navbar-dark-custom .nav-link.active {
    color: var(--color-cyan) !important;
    background-color: rgba(131, 241, 255, 0.08);
}
.navbar-dark-custom .navbar-toggler {
    border-color: var(--border-color);
}
.navbar-dark-custom .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23D6D6D6' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer-dark {
    background-color: #111111;
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.footer-dark a {
    color: var(--text-secondary);
}
.footer-dark a:hover {
    color: var(--color-cyan);
    text-decoration: none;
}
.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-card);
    color: var(--text-primary);
    margin: 0 4px;
    transition: var(--transition);
}
.footer-social a:hover {
    background-color: var(--color-cyan);
    color: var(--bg-dark);
    text-decoration: none;
}

/* ============================================================
   BANNER / CAROUSEL
   ============================================================ */
.banner-section {
    position: relative;
    overflow: hidden;
}
.banner-section .carousel-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}
@media (max-width: 768px) {
    .banner-section .carousel-item img {
        height: 220px;
    }
}
.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: rgba(0,0,0,0.5);
    border-radius: 50%;
    padding: 20px;
}
.carousel-indicators [data-bs-target] {
    background-color: var(--color-yellow);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    opacity: 0.5;
}
.carousel-indicators .active {
    opacity: 1;
}

/* ============================================================
   CARDS
   ============================================================ */
.card-dark {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition);
}
.card-dark:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}
.card-dark .card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
}
.card-dark .card-body {
    color: var(--text-primary);
}
.card-dark .card-footer {
    background-color: transparent;
    border-top: 1px solid var(--border-color);
}

/* Post Card */
.post-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.post-card:hover {
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 1px var(--color-cyan), var(--shadow);
    transform: translateY(-3px);
}
.post-card .post-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: #222;
}
.post-card .post-body {
    padding: 1rem;
}
.post-card .post-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.4rem;
}
.post-card .post-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}
.post-card .post-number {
    display: inline-block;
    background-color: var(--color-yellow);
    color: var(--bg-dark);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}
.post-card .post-provider {
    display: inline-block;
    background-color: rgba(131, 241, 255, 0.1);
    color: var(--color-cyan);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-yellow {
    background-color: var(--color-yellow);
    color: var(--bg-dark);
    border: none;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.btn-yellow:hover {
    background-color: var(--color-yellow-dark);
    color: var(--bg-dark);
    box-shadow: 0 0 12px rgba(244, 224, 93, 0.3);
}

.btn-cyan {
    background-color: var(--color-cyan);
    color: var(--bg-dark);
    border: none;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.btn-cyan:hover {
    background-color: var(--color-cyan-dark);
    color: var(--bg-dark);
    box-shadow: 0 0 12px rgba(131, 241, 255, 0.3);
}

.btn-red {
    background-color: var(--color-red);
    color: #fff;
    border: none;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.btn-red:hover {
    background-color: var(--color-red-dark);
    color: #fff;
}

.btn-outline-light-custom {
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    background: transparent;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.btn-outline-light-custom:hover {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    background: rgba(131, 241, 255, 0.05);
}

/* ============================================================
   FORMS
   ============================================================ */
.form-dark .form-label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}
.form-dark .form-control,
.form-dark .form-select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.75rem;
    transition: var(--transition);
}
.form-dark .form-control:focus,
.form-dark .form-select:focus {
    background-color: var(--bg-input);
    border-color: var(--color-cyan);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(131, 241, 255, 0.15);
}
.form-dark .form-control::placeholder {
    color: var(--text-muted);
}
.form-dark .form-text {
    color: var(--text-muted);
    font-size: 0.8rem;
}
.form-dark .input-group-text {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ============================================================
   TABLES
   ============================================================ */
.table-dark-custom {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
    --bs-table-striped-bg: rgba(255,255,255,0.02);
    --bs-table-hover-bg: rgba(131, 241, 255, 0.04);
}
.table-dark-custom thead th {
    background-color: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-light);
    padding: 0.7rem;
    white-space: nowrap;
}
.table-dark-custom td {
    padding: 0.65rem 0.7rem;
    vertical-align: middle;
    font-size: 0.9rem;
}

/* ============================================================
   BADGES / STATUS
   ============================================================ */
.badge-yellow {
    background-color: var(--color-yellow);
    color: var(--bg-dark);
    font-weight: 600;
}
.badge-cyan {
    background-color: var(--color-cyan);
    color: var(--bg-dark);
    font-weight: 600;
}
.badge-red {
    background-color: var(--color-red);
    color: #fff;
    font-weight: 600;
}
.badge-success {
    background-color: var(--color-success);
    color: #fff;
}
.badge-muted {
    background-color: var(--border-color);
    color: var(--text-secondary);
}
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}
.status-dot.active { background-color: var(--color-success); }
.status-dot.pending { background-color: var(--color-yellow); }
.status-dot.expired { background-color: var(--color-red); }
.status-dot.inactive { background-color: var(--text-muted); }

/* ============================================================
   ALERTS (Override Bootstrap)
   ============================================================ */
.alert {
    border-radius: var(--radius-sm);
    border: none;
    font-size: 0.9rem;
}
.alert-success {
    background-color: rgba(76, 175, 80, 0.15);
    color: var(--color-success);
    border-left: 3px solid var(--color-success);
}
.alert-danger {
    background-color: rgba(239, 93, 96, 0.15);
    color: var(--color-red);
    border-left: 3px solid var(--color-red);
}
.alert-warning {
    background-color: rgba(244, 224, 93, 0.15);
    color: var(--color-yellow);
    border-left: 3px solid var(--color-yellow);
}
.alert-info {
    background-color: rgba(131, 241, 255, 0.15);
    color: var(--color-cyan);
    border-left: 3px solid var(--color-cyan);
}

/* ============================================================
   PAGE CONTENT / CMS
   ============================================================ */
.page-header {
    padding: 2rem 0 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}
.page-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-white);
    margin: 0;
}
.page-header .breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0.3rem 0 0;
    font-size: 0.85rem;
}
.page-header .breadcrumb-item a {
    color: var(--text-secondary);
}
.page-header .breadcrumb-item.active {
    color: var(--text-muted);
}
.page-header .breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

.cms-content {
    color: var(--text-primary);
    line-height: 1.8;
}
.cms-content h2 {
    color: var(--text-white);
    font-size: 1.4rem;
    margin: 1.5rem 0 0.8rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-color);
}
.cms-content h3 {
    color: var(--color-yellow);
    font-size: 1.15rem;
    margin: 1.2rem 0 0.6rem;
}
.cms-content p {
    margin-bottom: 1rem;
}
.cms-content ul, .cms-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}
.cms-content img {
    border-radius: var(--radius);
    margin: 1rem 0;
}
.cms-content a {
    color: var(--color-cyan);
    text-decoration: underline;
}
.cms-content blockquote {
    border-left: 3px solid var(--color-yellow);
    padding: 0.5rem 1rem;
    margin: 1rem 0;
    background-color: rgba(244, 224, 93, 0.05);
    color: var(--text-secondary);
}

/* ============================================================
   BLOG
   ============================================================ */
.blog-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.blog-card:hover {
    border-color: var(--color-yellow);
    box-shadow: 0 0 0 1px var(--color-yellow), var(--shadow);
}
.blog-card .blog-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background-color: #222;
}
.blog-card .blog-body {
    padding: 1rem;
}
.blog-card .blog-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.3rem;
}
.blog-card .blog-excerpt {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}
.blog-card .blog-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-section {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
}

/* ============================================================
   WHATSAPP FLOATING BUTTON
   ============================================================ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background-color: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 9999;
    transition: var(--transition);
    cursor: pointer;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}
.whatsapp-float svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

/* WhatsApp button in post detail */
.btn-whatsapp {
    background-color: #25D366;
    color: #fff;
    border: none;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-whatsapp:hover {
    background-color: #1fb855;
    color: #fff;
    box-shadow: 0 0 12px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp svg {
    width: 20px;
    height: 20px;
    fill: #fff;
}

/* ============================================================
   ADMIN PANEL
   ============================================================ */
.admin-sidebar {
    background-color: #111111;
    min-height: 100vh;
    border-right: 1px solid var(--border-color);
    width: 240px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    overflow-y: auto;
    padding-top: 1rem;
}
.admin-sidebar .sidebar-brand {
    padding: 0.5rem 1rem 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.5rem;
}
.admin-sidebar .sidebar-brand h5 {
    color: var(--color-yellow);
    font-weight: 700;
    font-size: 1rem;
    margin: 0;
}
.admin-sidebar .sidebar-brand small {
    color: var(--text-muted);
    font-size: 0.75rem;
}
.admin-sidebar .nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
    border-radius: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}
.admin-sidebar .nav-link:hover {
    color: var(--text-primary);
    background-color: rgba(255,255,255,0.04);
}
.admin-sidebar .nav-link.active {
    color: var(--color-cyan);
    background-color: rgba(131, 241, 255, 0.08);
    border-right: 2px solid var(--color-cyan);
}
.admin-sidebar .nav-section {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 1rem 1rem 0.3rem;
}

.admin-content {
    margin-left: 240px;
    padding: 1.5rem;
    min-height: 100vh;
}
.admin-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}
.admin-topbar h4 {
    margin: 0;
    color: var(--text-white);
    font-weight: 600;
}

/* Dashboard Stats */
.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.2rem;
    text-align: center;
    transition: var(--transition);
}
.stat-card:hover {
    border-color: var(--border-light);
}
.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
}
.stat-card .stat-number.yellow { color: var(--color-yellow); }
.stat-card .stat-number.cyan { color: var(--color-cyan); }
.stat-card .stat-number.red { color: var(--color-red); }
.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.3rem;
}

/* ============================================================
   AGENT PANEL
   ============================================================ */
.agent-header {
    background-color: #111111;
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 0;
}
.agent-header .plan-badge {
    background-color: rgba(244, 224, 93, 0.15);
    color: var(--color-yellow);
    font-size: 0.8rem;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
}
.agent-header .quota-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.agent-dashboard-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
}
.agent-dashboard-card h6 {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}
.agent-dashboard-card .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

/* ============================================================
   PAGINATION (Override Bootstrap)
   ============================================================ */
.pagination .page-link {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-size: 0.88rem;
    transition: var(--transition);
}
.pagination .page-link:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}
.pagination .page-item.active .page-link {
    background-color: var(--color-cyan);
    border-color: var(--color-cyan);
    color: var(--bg-dark);
}
.pagination .page-item.disabled .page-link {
    background-color: var(--bg-dark);
    border-color: var(--border-color);
    color: var(--text-muted);
}

/* ============================================================
   SEARCH BAR
   ============================================================ */
.search-bar {
    position: relative;
}
.search-bar .form-control {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding-left: 2.5rem;
    border-radius: var(--radius);
}
.search-bar .form-control:focus {
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 2px rgba(131, 241, 255, 0.15);
}
.search-bar .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* ============================================================
   RESPONSIVE — ADMIN SIDEBAR
   ============================================================ */
@media (max-width: 991px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .admin-sidebar.show {
        transform: translateX(0);
    }
    .admin-content {
        margin-left: 0;
    }
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }
    .sidebar-overlay.show {
        display: block;
    }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-yellow { color: var(--color-yellow) !important; }
.text-cyan { color: var(--color-cyan) !important; }
.text-red { color: var(--color-red) !important; }
.text-muted-custom { color: var(--text-secondary) !important; }
.bg-dark-card { background-color: var(--bg-card) !important; }
.border-dark-custom { border-color: var(--border-color) !important; }

.truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Loading Spinner */
.spinner-border-sm { width: 1rem; height: 1rem; border-width: 0.15em; }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}
.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    opacity: 0.4;
}
.empty-state h5 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}