/**
 * Taprap SMS Manager — brand theme
 * Electric blue on dark charcoal, matching TAPRAP logo
 */
:root,
[data-bs-theme="dark"] {
    --taprap-black: #050608;
    --taprap-bg: #0b0f14;
    --taprap-surface: #121820;
    --taprap-surface-2: #1a2330;
    --taprap-border: rgba(56, 189, 248, 0.14);
    --taprap-blue: #00b4ff;
    --taprap-blue-bright: #38bdf8;
    --taprap-blue-deep: #0369a1;
    --taprap-blue-glow: rgba(0, 180, 255, 0.22);
    --taprap-text: #f1f5f9;
    --taprap-text-muted: #94a3b8;
    --taprap-sidebar-width: 270px;

    --bs-body-bg: var(--taprap-bg);
    --bs-body-color: var(--taprap-text);
    --bs-emphasis-color: #fff;
    --bs-secondary-color: var(--taprap-text-muted);
    --bs-tertiary-bg: var(--taprap-bg);
    --bs-border-color: var(--taprap-border);
    --bs-primary: var(--taprap-blue);
    --bs-primary-rgb: 0, 180, 255;
    --bs-link-color: var(--taprap-blue-bright);
    --bs-link-hover-color: #7dd3fc;
}

[data-bs-theme="light"] {
    --taprap-bg: #eef4fb;
    --taprap-surface: #ffffff;
    --taprap-surface-2: #f8fafc;
    --taprap-border: rgba(3, 105, 161, 0.12);
    --taprap-text: #0f172a;
    --taprap-text-muted: #64748b;

    --bs-body-bg: var(--taprap-bg);
    --bs-body-color: var(--taprap-text);
    --bs-tertiary-bg: #e8f1fa;
    --bs-border-color: var(--taprap-border);
}

* { box-sizing: border-box; }

body {
    min-height: 100vh;
    font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--taprap-bg);
    color: var(--taprap-text);
}

.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: var(--taprap-sidebar-width);
    flex-shrink: 0;
    transition: transform 0.25s ease;
    background: linear-gradient(180deg, #06080c 0%, #0d1219 55%, #0a1018 100%);
    border-right: 1px solid var(--taprap-border);
    display: flex;
    flex-direction: column;
}

.admin-sidebar-brand {
    padding: 1.25rem 1rem 1rem;
    border-bottom: 1px solid var(--taprap-border);
    margin-bottom: 0.75rem;
}

.admin-sidebar-brand img {
    max-width: 100%;
    height: auto;
    max-height: 52px;
    object-fit: contain;
    filter: drop-shadow(0 0 18px var(--taprap-blue-glow));
}

.admin-sidebar-brand .brand-subtitle {
    color: var(--taprap-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

.admin-sidebar .nav-link {
    color: var(--taprap-text-muted) !important;
    border-radius: 0.5rem;
    padding: 0.55rem 0.75rem;
    font-size: 0.92rem;
    transition: all 0.18s ease;
    border: 1px solid transparent;
}

.admin-sidebar .nav-link:hover {
    color: var(--taprap-text) !important;
    background: rgba(56, 189, 248, 0.08);
    border-color: rgba(56, 189, 248, 0.12);
}

.admin-sidebar .nav-link.active {
    color: #fff !important;
    background: linear-gradient(90deg, rgba(0, 180, 255, 0.22), rgba(3, 105, 161, 0.12));
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: inset 3px 0 0 var(--taprap-blue);
}

.admin-sidebar .nav-link i {
    color: var(--taprap-blue-bright);
    opacity: 0.9;
}

.admin-sidebar-footer {
    margin-top: auto;
    padding: 1rem;
    border-top: 1px solid var(--taprap-border);
    font-size: 0.75rem;
    color: var(--taprap-text-muted);
}

/* Main content */
.admin-content {
    flex: 1;
    min-width: 0;
    background:
        radial-gradient(ellipse at top right, rgba(0, 180, 255, 0.06), transparent 45%),
        var(--taprap-bg);
}

.admin-topbar {
    background: rgba(10, 14, 20, 0.85) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--taprap-border) !important;
}

[data-bs-theme="light"] .admin-topbar {
    background: rgba(255, 255, 255, 0.92) !important;
}

.admin-topbar .page-title {
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Cards */
.stat-card,
.card {
    background: var(--taprap-surface);
    border: 1px solid var(--taprap-border);
    border-radius: 0.75rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.stat-card .card-header,
.card .card-header {
    background: transparent;
    border-bottom: 1px solid var(--taprap-border);
    color: var(--taprap-text);
}

.stat-card .text-muted,
.card .text-muted {
    color: var(--taprap-text-muted) !important;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--taprap-blue) 0%, var(--taprap-blue-deep) 100%);
    border: none;
    box-shadow: 0 4px 14px var(--taprap-blue-glow);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, #33c5ff 0%, #0284c7 100%);
    box-shadow: 0 6px 18px rgba(0, 180, 255, 0.35);
}

.btn-outline-primary {
    color: var(--taprap-blue-bright);
    border-color: rgba(56, 189, 248, 0.45);
}

.btn-outline-primary:hover {
    background: rgba(0, 180, 255, 0.12);
    border-color: var(--taprap-blue);
    color: #fff;
}

.btn-outline-secondary {
    border-color: var(--taprap-border);
    color: var(--taprap-text-muted);
}

.btn-outline-secondary:hover {
    background: var(--taprap-surface-2);
    border-color: rgba(56, 189, 248, 0.25);
    color: var(--taprap-text);
}

/* Forms */
.form-control,
.form-select {
    background: var(--taprap-surface-2);
    border-color: var(--taprap-border);
    color: var(--taprap-text);
}

.form-control:focus,
.form-select:focus {
    background: var(--taprap-surface-2);
    border-color: var(--taprap-blue);
    box-shadow: 0 0 0 0.2rem var(--taprap-blue-glow);
    color: var(--taprap-text);
}

[data-bs-theme="light"] .form-control,
[data-bs-theme="light"] .form-select {
    background: #fff;
}

/* Tables */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--taprap-text);
    --bs-table-border-color: var(--taprap-border);
    --bs-table-striped-bg: rgba(56, 189, 248, 0.04);
    --bs-table-hover-bg: rgba(56, 189, 248, 0.08);
}

/* Alerts */
.alert-info {
    background: rgba(0, 180, 255, 0.1);
    border-color: rgba(56, 189, 248, 0.3);
    color: #bae6fd;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
}

/* Nav tabs */
.nav-tabs {
    border-bottom-color: var(--taprap-border);
}

.nav-tabs .nav-link {
    color: var(--taprap-text-muted);
    border: none;
}

.nav-tabs .nav-link.active {
    color: var(--taprap-blue-bright);
    background: transparent;
    border-bottom: 2px solid var(--taprap-blue);
}

/* Dropdown */
.dropdown-menu {
    background: var(--taprap-surface);
    border: 1px solid var(--taprap-border);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.dropdown-item {
    color: var(--taprap-text);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: rgba(56, 189, 248, 0.1);
    color: var(--taprap-text);
}

/* DataTables dark tweaks */
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    background: var(--taprap-surface-2);
    border: 1px solid var(--taprap-border);
    color: var(--taprap-text);
    border-radius: 0.375rem;
    padding: 0.25rem 0.5rem;
}

.page-link {
    background: var(--taprap-surface-2);
    border-color: var(--taprap-border);
    color: var(--taprap-text-muted);
}

.page-item.active .page-link {
    background: var(--taprap-blue-deep);
    border-color: var(--taprap-blue);
}

/* Auth / login */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background:
        radial-gradient(circle at 20% 20%, rgba(0, 180, 255, 0.12), transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(3, 105, 161, 0.15), transparent 35%),
        var(--taprap-black);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--taprap-surface);
    border: 1px solid var(--taprap-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
}

.auth-logo {
    display: block;
    max-width: 220px;
    margin: 0 auto 1rem;
    filter: drop-shadow(0 0 20px var(--taprap-blue-glow));
}

/* Mobile sidebar */
@media (max-width: 991.98px) {
    .admin-sidebar {
        position: fixed;
        z-index: 1040;
        height: 100%;
        transform: translateX(-100%);
    }

    .admin-sidebar.show {
        transform: translateX(0);
    }

    .sidebar-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.65);
        z-index: 1035;
    }

    .sidebar-backdrop.show {
        display: block;
    }
}

/* Stat icon accents */
.text-primary { color: var(--taprap-blue-bright) !important; }
.text-info { color: #38bdf8 !important; }

.badge.bg-primary {
    background: linear-gradient(135deg, var(--taprap-blue), var(--taprap-blue-deep)) !important;
}

.list-group-item {
    background: transparent;
    border-color: var(--taprap-border);
    color: var(--taprap-text);
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    border-color: rgba(34, 197, 94, 0.35);
    color: #bbf7d0;
}