/* ========================================
   WG Manager — Design System & Styles
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #161625;
    --bg-card: #1c1c2e;
    --bg-card-hover: #222238;
    --bg-input: #12121f;
    --bg-modal: rgba(0, 0, 0, 0.7);

    --text-primary: #e8e8f0;
    --text-secondary: #9898b0;
    --text-muted: #6a6a82;
    --text-inverse: #0f0f1a;

    --accent-primary: #6366f1;
    --accent-primary-hover: #5558e6;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --accent-glow: rgba(99, 102, 241, 0.25);

    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --info: #3b82f6;

    --border-color: rgba(255, 255, 255, 0.06);
    --border-color-hover: rgba(255, 255, 255, 0.12);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--accent-glow);

    --sidebar-width: 260px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { font-size: 14px; }

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

a { color: var(--accent-primary); text-decoration: none; }
a:hover { color: var(--accent-secondary); }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ========================================
   Login Page
   ======================================== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.06) 0%, transparent 60%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px 36px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    text-align: center;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-logo { margin-bottom: 20px; }
.login-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 4px; }
.login-subtitle { color: var(--text-secondary); margin-bottom: 32px; font-size: 0.95rem; }

.login-form { text-align: left; }
.login-form .form-group { margin-bottom: 20px; }

.login-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 24px;
}

/* --- Form Elements --- */
.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder, textarea::placeholder {
    color: var(--text-muted);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239898b0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

textarea { resize: vertical; min-height: 80px; }

.error-message {
    background: var(--danger-bg);
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn .material-symbols-rounded { font-size: 18px; }

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { border-color: var(--border-color-hover); background: var(--bg-card); }

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.2); }

.btn-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-sm .material-symbols-rounded { font-size: 16px; }

.btn-full { width: 100%; justify-content: center; }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
}
.btn-icon:hover { color: var(--text-primary); background: var(--bg-card-hover); }

/* --- Spinner --- */
.spinner { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.btn-loader { display: inline-flex; align-items: center; }

/* ========================================
   Dashboard Layout
   ======================================== */
.dashboard-body { overflow: hidden; }

.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    font-size: 1.15rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

.nav-item .material-symbols-rounded { font-size: 20px; }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-info .material-symbols-rounded { font-size: 28px; color: var(--accent-primary); }
.admin-name { font-weight: 600; font-size: 0.9rem; }
.admin-role { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* --- Main Content --- */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 70% 10%, rgba(99,102,241,0.04) 0%, transparent 50%);
}

.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.content-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* --- Data Tables --- */
.data-table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--bg-secondary);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-card-hover);
}

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

/* --- Status Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.badge-online { background: var(--success-bg); color: var(--success); }
.badge-online::before { background: var(--success); box-shadow: 0 0 6px var(--success); }

.badge-offline { background: var(--danger-bg); color: var(--danger); }
.badge-offline::before { background: var(--danger); }

.badge-error { background: var(--warning-bg); color: var(--warning); }
.badge-error::before { background: var(--warning); }

.badge-enabled { background: var(--success-bg); color: var(--success); }
.badge-disabled { background: var(--danger-bg); color: var(--danger); }

/* --- Action Buttons in Tables --- */
.action-buttons {
    display: flex;
    gap: 4px;
}

.action-buttons .btn-icon {
    padding: 5px;
    border-radius: var(--radius-sm);
}

.action-buttons .btn-icon:hover {
    background: var(--bg-input);
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

/* --- Form Grid --- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
}

.form-grid .full-width {
    grid-column: 1 / -1;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    padding-top: 8px;
}

/* --- Toggle Switch --- */
.toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.toggle input { display: none; }

.toggle-slider {
    width: 44px;
    height: 24px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--text-muted);
    top: 2px;
    left: 2px;
    transition: var(--transition);
}

.toggle input:checked + .toggle-slider {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
    background: white;
}

.toggle-label { font-size: 0.85rem; color: var(--text-secondary); }

/* --- Auth Key Display --- */
.auth-key {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    background: var(--bg-input);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}

.auth-key:hover {
    max-width: none;
    background: var(--bg-secondary);
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .material-symbols-rounded {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state p { font-size: 0.95rem; }

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(24px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 { font-size: 1.15rem; font-weight: 600; }

.modal-body { padding: 20px 24px; }
.modal-body .form-group { margin-bottom: 16px; }

.modal-footer {
    padding: 16px 24px 20px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    border-top: 1px solid var(--border-color);
}

/* ========================================
   Toast Notifications
   ======================================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    max-width: 420px;
    font-size: 0.9rem;
    animation: toastIn 0.3s ease;
}

.toast.removing { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    to { opacity: 0; transform: translateX(30px); }
}

.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--danger); }
.toast-info { border-left: 3px solid var(--info); }

.toast .material-symbols-rounded { font-size: 20px; flex-shrink: 0; }
.toast-success .material-symbols-rounded { color: var(--success); }
.toast-error .material-symbols-rounded { color: var(--danger); }
.toast-info .material-symbols-rounded { color: var(--info); }

/* --- Device Info Cell --- */
.device-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .sidebar { width: 60px; }
    .sidebar-brand, .nav-item span:last-child, .admin-info div, .sidebar-header svg { display: none; }
    .nav-item { justify-content: center; padding: 12px; }
    .sidebar-header { justify-content: center; padding: 16px 8px; }
    .sidebar-footer { flex-direction: column; gap: 8px; }
    .admin-info { display: none; }
    .form-grid { grid-template-columns: 1fr; }
    .main-content { padding: 20px 16px; }
}