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

:root {
    --bg: #0f1117;
    --bg-secondary: #1a1d27;
    --card: #1e2130;
    --border: #2d3148;
    --accent: #22c55e;
    --accent-hover: #16a34a;
    --accent-light: rgba(34, 197, 94, 0.1);
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #22c55e;
    --radius: 12px;
}

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

.hidden { display: none !important; }

/* ===== Login ===== */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f1117, #1a1d27);
}
.login-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    text-align: center;
    max-width: 400px;
    width: 100%;
}
.login-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 16px;
}
.login-card h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent);
}
.login-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ===== App Layout ===== */
.app {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
}
.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px;
    border-bottom: 1px solid var(--border);
}
.sidebar-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}
.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
}
.sidebar-nav {
    flex: 1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.nav-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
    width: 100%;
}
.nav-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}
.nav-btn:hover {
    background: var(--accent-light);
    color: var(--text);
}
.nav-btn.active {
    background: var(--accent-light);
    color: var(--accent);
}
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.admin-info {
    font-size: 13px;
    color: var(--text-secondary);
}
.logout-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}
.logout-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: 240px;
    padding: 24px 32px;
    min-height: 100vh;
}
.page { display: none; }
.page.active { display: block; }

.page-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.stat-card-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.stat-card-value {
    font-size: 28px;
    font-weight: 800;
}
.stat-card-sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}
.stat-accent { color: var(--accent); }
.stat-warning { color: var(--warning); }
.stat-danger { color: var(--danger); }

/* ===== Chart ===== */
.chart-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}
.chart-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* ===== Panels Grid ===== */
.panels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.panel-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.panel-name {
    font-size: 16px;
    font-weight: 600;
}
.panel-status {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}
.panel-status-ok { background: rgba(34,197,94,0.15); color: var(--success); }
.panel-status-warn { background: rgba(245,158,11,0.15); color: var(--warning); }
.panel-status-full { background: rgba(239,68,68,0.15); color: var(--danger); }
.panel-header > div {
    display: flex;
    align-items: center;
    gap: 10px;
}
.panel-status-inline {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--text-secondary);
}
.panel-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}
.panel-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}
.panel-servers {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}
.servers-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.server-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}
.server-row:last-child { border-bottom: none; }
.server-info {
    display: flex;
    align-items: center;
    gap: 8px;
}
.server-name {
    font-size: 13px;
    font-weight: 500;
}
.server-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.server-ip {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: monospace;
}
.server-role {
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg);
    padding: 2px 8px;
    border-radius: 4px;
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}
.status-dot.online { background: var(--success); box-shadow: 0 0 6px rgba(34,197,94,0.5); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.panel-users-row {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.15s;
}
.panel-users-row:hover { background: var(--accent-light); }
.panel-users-hint {
    font-size: 11px;
    color: var(--accent);
    margin-left: 8px;
    opacity: 0;
    transition: opacity 0.15s;
}
.panel-users-row:hover .panel-users-hint { opacity: 1; }
.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}
.filter-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}
.panel-footer {
    margin-top: 12px;
    text-align: right;
}
.panel-link {
    font-size: 12px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.15s;
}
.panel-link:hover { opacity: 0.7; }

/* ===== Table ===== */
.table-toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.search-input {
    flex: 1;
    min-width: 200px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.search-input:focus { border-color: var(--accent); }
.search-input::placeholder { color: var(--text-secondary); }

.filter-select {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 14px;
    outline: none;
    cursor: pointer;
}

.table-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}
.data-table td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--accent-light); }
.data-table tr { cursor: pointer; transition: background 0.1s; }

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}
.badge-active { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-expired { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-blocked { background: rgba(239,68,68,0.3); color: #fca5a5; }
.badge-paid { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-pending { background: rgba(245,158,11,0.15); color: var(--warning); }

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-secondary);
}
.pagination-btns {
    display: flex;
    gap: 8px;
}
.page-btn {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.page-btn:hover { border-color: var(--accent); }
.page-btn:disabled { opacity: 0.3; cursor: default; }

/* ===== User Detail ===== */
.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}
.detail-info h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}
.detail-info p {
    font-size: 14px;
    color: var(--text-secondary);
}
.detail-actions {
    display: flex;
    gap: 8px;
}
.action-btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.action-btn:hover { opacity: 0.85; }
.btn-green { background: var(--accent); color: white; }
.btn-red { background: var(--danger); color: white; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); }

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.detail-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.detail-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}
.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.detail-row:last-child { border-bottom: none; }
.detail-label { color: var(--text-secondary); }
.detail-value { font-weight: 600; }

/* ===== Broadcast ===== */
.broadcast-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 600px;
}
.form-group {
    margin-bottom: 16px;
}
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    outline: none;
}
.form-textarea:focus { border-color: var(--accent); }

.btn-primary {
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    background: var(--accent);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-primary:hover { background: var(--accent-hover); }

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
}
.modal-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    max-width: 700px;
    width: 90%;
}
.modal-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}
.modal-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    outline: none;
    margin-bottom: 16px;
}
.modal-input:focus { border-color: var(--accent); }
.modal-btns {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--card);
    border: 1px solid var(--accent);
    color: var(--text);
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    z-index: 600;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
}
.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ===== Loading ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: var(--text-secondary);
}
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 4px;
    width: fit-content;
}
.tab-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.tab-btn.active {
    background: var(--card);
    color: var(--text);
}
.tab-btn:hover:not(.active) { color: var(--text); }

/* ===== Notifications ===== */
.notif-section { margin-bottom: 24px; }
.notif-section-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}
.notif-section-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 14px;
}
.notif-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 10px;
}
.notif-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}
.notif-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}
.notif-desc {
    font-size: 12px;
    color: var(--text-secondary);
}
.notif-template { margin-top: 4px; }
.notif-template .form-textarea {
    min-height: 80px;
    font-size: 13px;
}
.notif-vars {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
}
.notif-vars code {
    background: var(--bg);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 11px;
    color: var(--accent);
}

/* Toggle */
.toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s;
    flex-shrink: 0;
}
.toggle-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    transition: all 0.2s;
}
.toggle-on {
    background: rgba(34,197,94,0.15);
    color: var(--success);
}
.toggle-on .toggle-dot { background: var(--success); }
.toggle-off {
    background: rgba(239,68,68,0.15);
    color: var(--danger);
}
.toggle-off .toggle-dot { background: var(--danger); }

/* ===== Providers ===== */
.provider-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 12px;
}
.provider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.provider-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
}
.provider-title svg { color: var(--text-secondary); }
.provider-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}
.provider-field { }
.provider-field .form-label { margin-bottom: 4px; }
.field-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.field-wrapper .modal-input {
    margin-bottom: 0;
    padding-right: 36px;
}
.field-toggle {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    opacity: 0.6;
    transition: opacity 0.15s;
}
.field-toggle:hover { opacity: 1; }
.provider-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.provider-updated {
    font-size: 11px;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; padding: 16px; }
}