/* ========================================
   VPS CONTROL PANEL — Premium Dark Theme
   Matches Supreme Console design language
   ======================================== */

:root {
    --primary: #8b5cf6;
    --primary-glow: rgba(139, 92, 246, 0.4);
    --primary-light: #a78bfa;
    --secondary: #06b6d4;
    --secondary-glow: rgba(6, 182, 212, 0.3);
    --bg: #030712;
    --surface: rgba(15, 23, 42, 0.6);
    --card-base: rgba(30, 41, 59, 0.3);
    --card-hover: rgba(30, 41, 59, 0.5);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    --text: #ffffff;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);
    --sidebar-width: 240px;
    --sidebar-collapsed: 64px;
    --topbar-height: 60px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

body {
    font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Glow */
.bg-glow {
    position:fixed; top:0; left:0; right:0; bottom:0;
    background:
        radial-gradient(circle at 10% 20%, rgba(99,102,241,0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(244,63,94,0.05) 0%, transparent 40%);
    z-index:-1; pointer-events:none;
}

/* ============= LOADING SCREEN ============= */
.loading-screen {
    position:fixed; inset:0; z-index:10000;
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    background:var(--bg); gap:20px;
}
.loader-box {
    width:72px; height:72px;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    border-radius:20px; display:flex; align-items:center; justify-content:center;
    box-shadow:0 0 40px var(--primary-glow); animation:pulse-glow 2s infinite;
}
.loader-box i { font-size:32px; color:white; }
.loader-text { font-size:14px; font-weight:800; letter-spacing:2px; color:var(--text-muted); }
.loader-bar { width:200px; height:3px; background:var(--card-base); border-radius:3px; overflow:hidden; }
.loader-fill { height:100%; width:0%; background:linear-gradient(90deg,var(--primary),var(--secondary)); border-radius:3px; animation:loader-fill 1.5s ease-in-out forwards; }
@keyframes loader-fill { to { width:100%; } }
@keyframes pulse-glow { 0%,100% { box-shadow:0 0 30px var(--primary-glow); } 50% { box-shadow:0 0 60px var(--primary-glow); } }

/* ============= LOGIN SCREEN ============= */
.login-screen {
    position:fixed; inset:0; z-index:9999;
    display:flex; align-items:center; justify-content:center;
    background:radial-gradient(circle at top right,#1e1b4b,var(--bg));
    padding:20px;
}
.login-card {
    background:var(--surface); backdrop-filter:blur(40px);
    border:1px solid var(--border); border-radius:var(--radius-xl);
    padding:48px 40px; max-width:400px; width:100%;
    text-align:center; box-shadow:var(--shadow-lg);
}
.login-icon {
    width:64px; height:64px; margin:0 auto 20px;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    border-radius:18px; display:flex; align-items:center; justify-content:center;
    box-shadow:0 0 30px var(--primary-glow);
}
.login-icon i { font-size:28px; color:white; }
.login-card h2 { font-size:22px; font-weight:800; margin-bottom:8px; }
.login-sub { color:var(--text-muted); font-size:13px; margin-bottom:32px; line-height:1.5; }
.login-btn {
    width:100%; padding:14px 24px; border:none; border-radius:var(--radius-md);
    background:linear-gradient(135deg,var(--primary),#7c3aed); color:white;
    font-size:15px; font-weight:700; cursor:pointer; transition:var(--transition);
    display:flex; align-items:center; justify-content:center; gap:10px;
}
.login-btn:hover { transform:translateY(-2px); box-shadow:0 8px 24px var(--primary-glow); }
.login-btn:active { transform:scale(0.97); }
.login-error { color:var(--danger); font-size:13px; margin-top:16px; display:none; }

/* ============= APP SHELL ============= */
.app-shell { display:flex; flex-direction:column; height:100vh; }

/* Topbar */
.topbar {
    height:var(--topbar-height); background:rgba(3,7,18,0.8);
    backdrop-filter:blur(25px); border-bottom:1px solid var(--border);
    display:flex; align-items:center; justify-content:space-between;
    padding:0 20px; position:sticky; top:0; z-index:1000;
}
.topbar-left { display:flex; align-items:center; gap:16px; }
.sidebar-toggle {
    width:36px; height:36px; border-radius:var(--radius-sm);
    background:var(--card-base); border:1px solid var(--border);
    color:var(--text-muted); font-size:16px; cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    transition:var(--transition); flex-shrink:0;
}
.sidebar-toggle:hover { background:var(--card-hover); color:var(--text); }
.topbar-logo { display:flex; align-items:center; gap:10px; }
.logo-box {
    width:34px; height:34px;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    border-radius:10px; display:flex; align-items:center; justify-content:center;
    box-shadow:0 0 16px var(--primary-glow);
}
.logo-box i { font-size:16px; color:white; }
.logo-text h1 { font-size:14px; font-weight:800; letter-spacing:-0.3px; }
.status-badge { font-size:8px; color:var(--success); font-weight:800; letter-spacing:1px; }

.topbar-right { display:flex; align-items:center; gap:8px; }
.topbar-stats { display:flex; gap:6px; }
.stat-chip {
    padding:4px 10px; border-radius:20px;
    background:var(--card-base); border:1px solid var(--border);
    font-size:11px; font-weight:700; color:var(--text-muted);
    display:flex; align-items:center; gap:5px; white-space:nowrap;
}
.stat-chip i { font-size:10px; }
.stat-chip span { color:var(--text); }

.icon-btn {
    width:34px; height:34px; border-radius:var(--radius-sm);
    background:var(--card-base); border:1px solid var(--border);
    color:var(--text-muted); font-size:14px; cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    transition:var(--transition);
}
.icon-btn:hover { background:var(--card-hover); color:var(--text); }
.icon-btn:active { transform:scale(0.9); }

.user-avatar { width:34px; height:34px; border-radius:50%; overflow:hidden; cursor:pointer; border:2px solid var(--border); transition:var(--transition); flex-shrink:0; }
.user-avatar:hover { border-color:var(--primary); }
.user-avatar img { width:100%; height:100%; object-fit:cover; }

/* App Body */
.app-body { display:flex; flex:1; overflow:hidden; }

/* Sidebar */
.sidebar {
    width:var(--sidebar-width); background:rgba(3,7,18,0.6);
    border-right:1px solid var(--border); display:flex;
    flex-direction:column; transition:var(--transition); overflow:hidden;
    flex-shrink:0;
}
.sidebar.collapsed { width:var(--sidebar-collapsed); }
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-footer span { display:none; }
.sidebar.collapsed .nav-item { justify-content:center; padding:12px 0; }

.sidebar-menu { flex:1; overflow-y:auto; padding:12px 8px; }
.sidebar-menu::-webkit-scrollbar { width:4px; }
.sidebar-menu::-webkit-scrollbar-thumb { background:var(--card-base); border-radius:4px; }

.nav-item {
    display:flex; align-items:center; gap:12px;
    padding:10px 14px; border-radius:var(--radius-sm);
    color:var(--text-muted); text-decoration:none; font-size:13px;
    font-weight:600; transition:var(--transition); margin-bottom:2px;
    white-space:nowrap;
}
.nav-item i { width:20px; text-align:center; font-size:16px; flex-shrink:0; }
.nav-item:hover { background:var(--card-base); color:var(--text); }
.nav-item.active {
    background:rgba(139,92,246,0.12); color:var(--primary);
    border:1px solid rgba(139,92,246,0.2);
}
.nav-item.active i { color:var(--primary); }

.sidebar-footer {
    padding:12px 16px; border-top:1px solid var(--border);
    display:flex; justify-content:space-between; align-items:center;
}
.sidebar-footer .version { font-size:11px; color:var(--text-dim); font-weight:600; }
.sidebar-footer .server-name { font-size:11px; color:var(--text-muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* Main Content */
.main-content {
    flex:1; overflow-y:auto; padding:24px;
    background:radial-gradient(ellipse at top right, rgba(139,92,246,0.03), transparent);
}
.main-content::-webkit-scrollbar { width:6px; }
.main-content::-webkit-scrollbar-thumb { background:var(--card-base); border-radius:4px; }

.page-loader {
    display:none; position:fixed; top:50%; left:50%; transform:translate(-50%,-50%);
    z-index:500;
}
.page-loader.show { display:flex; }
.spinner {
    width:40px; height:40px; border:3px solid var(--border);
    border-top-color:var(--primary); border-radius:50%;
    animation:spin 0.8s linear infinite;
}
@keyframes spin { to { transform:rotate(360deg); } }

.page-content { animation:fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

/* ============= DASHBOARD ============= */
.page-header {
    display:flex; justify-content:space-between; align-items:center; margin-bottom:20px;
}
.page-header h2 { font-size:20px; font-weight:800; display:flex; align-items:center; gap:10px; }
.page-header h2 i { color:var(--primary); }
.page-subtitle { font-size:12px; color:var(--text-muted); margin-top:2px; }
.header-actions { display:flex; gap:8px; }

/* KPI Grid */
.kpi-grid {
    display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));
    gap:14px; margin-bottom:24px;
}
.kpi-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-md); padding:16px 18px;
    position:relative; overflow:hidden; transition:var(--transition);
}
.kpi-card:hover { background:var(--card-hover); border-color:var(--border-light); }
.kpi-card .kpi-icon {
    position:absolute; right:12px; top:12px; font-size:28px;
    opacity:0.15; color:var(--primary);
}
.kpi-label { font-size:10px; font-weight:800; color:var(--text-muted); text-transform:uppercase; letter-spacing:0.8px; margin-bottom:4px; }
.kpi-value { font-size:26px; font-weight:800; font-family:'Outfit',sans-serif; }
.kpi-sub { font-size:11px; color:var(--text-muted); margin-top:2px; }
.kpi-trend { font-size:10px; font-weight:700; display:inline-flex; align-items:center; gap:3px; padding:2px 6px; border-radius:4px; margin-top:4px; }
.kpi-trend.up { background:var(--success-bg); color:var(--success); }
.kpi-trend.down { background:var(--danger-bg); color:var(--danger); }

/* Chart Row */
.chart-row {
    display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:24px;
}

.chart-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-md); padding:20px;
}
.chart-card h3 {
    font-size:12px; font-weight:800; color:var(--text-muted);
    text-transform:uppercase; letter-spacing:0.8px; margin-bottom:16px;
    display:flex; align-items:center; gap:8px;
}
.chart-card h3 i { color:var(--primary); }
.chart-container { position:relative; height:200px; }

/* Tables */
.table-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-md); overflow:hidden; margin-bottom:16px;
}
.table-header {
    display:flex; justify-content:space-between; align-items:center;
    padding:14px 18px; border-bottom:1px solid var(--border);
}
.table-header h3 { font-size:12px; font-weight:800; color:var(--text-muted); text-transform:uppercase; letter-spacing:0.8px; display:flex; align-items:center; gap:8px; }
.table-header h3 i { color:var(--primary); }
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; }
th {
    padding:10px 16px; text-align:left; font-size:10px; font-weight:800;
    color:var(--text-dim); text-transform:uppercase; letter-spacing:0.5px;
    border-bottom:1px solid var(--border); white-space:nowrap;
}
td {
    padding:10px 16px; font-size:13px; color:var(--text-muted);
    border-bottom:1px solid var(--border);
}
tr:hover td { background:var(--card-base); }
tr:last-child td { border-bottom:none; }

/* Status Badges */
.badge {
    display:inline-flex; align-items:center; gap:4px;
    padding:3px 10px; border-radius:20px; font-size:10px; font-weight:700;
}
.badge-success { background:var(--success-bg); color:var(--success); }
.badge-warning { background:var(--warning-bg); color:var(--warning); }
.badge-danger { background:var(--danger-bg); color:var(--danger); }
.badge-info { background:var(--info-bg); color:var(--info); }
.badge-neutral { background:var(--card-base); color:var(--text-muted); }

/* Progress Bar */
.progress-bar {
    height:4px; background:var(--card-base); border-radius:4px; overflow:hidden;
}
.progress-fill { height:100%; border-radius:4px; transition:width 0.5s ease; }
.progress-fill.good { background:var(--success); }
.progress-fill.warn { background:var(--warning); }
.progress-fill.danger { background:var(--danger); }

/* Buttons */
.btn {
    display:inline-flex; align-items:center; gap:6px;
    padding:8px 16px; border:none; border-radius:var(--radius-sm);
    font-size:12px; font-weight:700; cursor:pointer;
    transition:var(--transition); text-decoration:none;
}
.btn:active { transform:scale(0.95); }
.btn-primary { background:linear-gradient(135deg,var(--primary),#7c3aed); color:white; }
.btn-primary:hover { box-shadow:0 4px 16px var(--primary-glow); }
.btn-success { background:var(--success); color:white; }
.btn-warning { background:var(--warning); color:white; }
.btn-danger { background:var(--danger); color:white; }
.btn-ghost { background:var(--card-base); border:1px solid var(--border); color:var(--text-muted); }
.btn-ghost:hover { background:var(--card-hover); color:var(--text); }
.btn-sm { padding:5px 10px; font-size:10px; }
.btn-lg { padding:12px 24px; font-size:14px; }

/* Form Elements */
.input-group { margin-bottom:14px; }
.input-group label { display:block; font-size:11px; font-weight:700; color:var(--text-muted); margin-bottom:6px; text-transform:uppercase; letter-spacing:0.5px; }
.input-field {
    width:100%; padding:10px 14px; background:rgba(15,23,42,0.4);
    border:1px solid var(--border); border-radius:var(--radius-sm);
    color:var(--text); font-size:13px; outline:none; transition:var(--transition);
    font-family:inherit;
}
.input-field:focus { border-color:var(--primary); box-shadow:0 0 16px rgba(139,92,246,0.1); }
.input-field::placeholder { color:var(--text-dim); font-size:12px; }
select.input-field { 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='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 12px center; padding-right:32px; }
textarea.input-field { min-height:80px; resize:vertical; }

/* Cards */
.card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-md); padding:20px; margin-bottom:16px;
}
.card-title { font-size:14px; font-weight:700; margin-bottom:12px; display:flex; align-items:center; gap:8px; }

/* Tabs */
.tabs { display:flex; gap:4px; margin-bottom:16px; background:var(--card-base); border-radius:var(--radius-sm); padding:4px; }
.tab { padding:8px 16px; border:none; border-radius:6px; background:transparent; color:var(--text-muted); font-size:12px; font-weight:700; cursor:pointer; transition:var(--transition); }
.tab:hover { color:var(--text); }
.tab.active { background:var(--surface); color:var(--primary); box-shadow:var(--shadow-sm); }

/* Modal */
.modal-overlay {
    display:none; position:fixed; inset:0; z-index:5000;
    background:rgba(0,0,0,0.6); backdrop-filter:blur(8px);
    align-items:center; justify-content:center; padding:20px;
}
.modal-overlay.show { display:flex; }
.modal {
    background:rgba(15,23,42,0.95); border:1px solid var(--border);
    border-radius:var(--radius-lg); padding:24px; max-width:520px;
    width:100%; max-height:80vh; overflow-y:auto; box-shadow:var(--shadow-lg);
}
.modal h3 { font-size:16px; font-weight:800; margin-bottom:16px; }
.modal-actions { display:flex; gap:8px; justify-content:flex-end; margin-top:20px; }

/* Notification Toast */
.toast-container { position:fixed; top:80px; right:20px; z-index:9999; display:flex; flex-direction:column; gap:8px; }
.toast {
    padding:12px 18px; border-radius:var(--radius-sm);
    background:rgba(15,23,42,0.95); border:1px solid var(--border);
    font-size:13px; font-weight:600; color:var(--text);
    backdrop-filter:blur(20px); box-shadow:var(--shadow-md);
    animation:slideInRight 0.3s ease; max-width:380px;
    display:flex; align-items:center; gap:10px;
}
.toast i { font-size:16px; }
.toast.success { border-left:3px solid var(--success); }
.toast.error { border-left:3px solid var(--danger); }
.toast.warning { border-left:3px solid var(--warning); }
.toast.info { border-left:3px solid var(--info); }
@keyframes slideInRight { from { opacity:0; transform:translateX(100px); } to { opacity:1; transform:translateX(0); } }

/* ============= RESPONSIVE ============= */
@media (max-width:1024px) {
    .chart-row { grid-template-columns:1fr; }
}

@media (max-width:768px) {
    .sidebar { position:fixed; left:0; top:var(--topbar-height); bottom:0; z-index:900; transform:translateX(-100%); width:var(--sidebar-width) !important; }
    .sidebar.mobile-open { transform:translateX(0); }
    .sidebar.collapsed .nav-item span { display:inline; }
    .main-content { padding:16px; }
    .kpi-grid { grid-template-columns:repeat(2,1fr); gap:10px; }
    .kpi-value { font-size:20px; }
    .topbar-stats { display:none; }
    .page-header { flex-direction:column; align-items:flex-start; gap:10px; }
}

@media (max-width:480px) {
    .kpi-grid { grid-template-columns:1fr 1fr; gap:8px; }
    .kpi-card { padding:12px 14px; }
    .kpi-value { font-size:18px; }
    .modal { padding:16px; }
}