@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --pg-bg: #0b0f17;
    --pg-bg-elevated: #111827;
    --pg-sidebar: #0f1623;
    --pg-panel: #151d2e;
    --pg-panel-hover: #1a2438;
    --pg-border: rgba(148, 163, 184, 0.12);
    --pg-border-strong: rgba(148, 163, 184, 0.22);
    --pg-accent: #3b82f6;
    --pg-accent-hover: #2563eb;
    --pg-accent-glow: rgba(59, 130, 246, 0.35);
    --pg-success: #10b981;
    --pg-warning: #f59e0b;
    --pg-danger: #ef4444;
    --pg-info: #06b6d4;
    --pg-text: #f1f5f9;
    --pg-text-secondary: #94a3b8;
    --pg-text-muted: #64748b;
    --pg-sidebar-width: 260px;
    --pg-radius: 12px;
    --pg-radius-sm: 8px;
    --pg-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --pg-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --pg-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

html:not(.dark) {
    --pg-bg: #f0f4f8;
    --pg-bg-elevated: #ffffff;
    --pg-sidebar: #1e293b;
    --pg-panel: #ffffff;
    --pg-panel-hover: #f8fafc;
    --pg-border: rgba(15, 23, 42, 0.08);
    --pg-border-strong: rgba(15, 23, 42, 0.15);
    --pg-text: #0f172a;
    --pg-text-secondary: #475569;
    --pg-text-muted: #64748b;
    --pg-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --pg-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
}

*, *::before, *::after { box-sizing: border-box; }

body.pg-body {
    background: var(--pg-bg);
    color: var(--pg-text);
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ?????? Layout ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-layout { display: flex; min-height: 100vh; }

.pg-sidebar {
    width: var(--pg-sidebar-width);
    background: var(--pg-sidebar);
    border-right: 1px solid var(--pg-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1040;
    transition: transform var(--pg-transition);
}

.pg-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(2px);
    z-index: 1035;
    opacity: 0;
    transition: opacity var(--pg-transition);
}

.pg-sidebar-overlay.show { display: block; opacity: 1; }

.pg-brand {
    padding: 1.25rem 1.25rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.pg-brand-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.8rem; color: white;
    box-shadow: 0 4px 12px var(--pg-accent-glow);
    flex-shrink: 0;
}

.pg-brand-text {
    font-weight: 700; font-size: 1.05rem;
    color: #fff; letter-spacing: -0.02em;
}

.pg-brand-sub { font-size: 0.7rem; color: var(--pg-text-muted); font-weight: 400; }

.pg-nav {
    flex: 1;
    padding: 0.5rem 0.75rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pg-nav-section {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--pg-text-muted);
    padding: 1rem 0.75rem 0.35rem;
}

.pg-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.875rem;
    border-radius: var(--pg-radius-sm);
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--pg-transition);
}

.pg-nav-link i { font-size: 1.1rem; width: 1.25rem; text-align: center; opacity: 0.85; }

.pg-nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
}

.pg-nav-link.active {
    background: rgba(59, 130, 246, 0.15);
    color: #fff;
    box-shadow: inset 3px 0 0 var(--pg-accent);
}

.pg-sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--pg-border);
}

.pg-user-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    margin-bottom: 0.75rem;
    border-radius: var(--pg-radius-sm);
    background: rgba(255, 255, 255, 0.04);
}

.pg-user-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 0.8rem; color: #fff;
    flex-shrink: 0;
}

.pg-user-name { font-size: 0.8125rem; font-weight: 600; color: #e2e8f0; }
.pg-user-role { font-size: 0.7rem; color: var(--pg-text-muted); text-transform: capitalize; }

.pg-main {
    flex: 1;
    margin-left: var(--pg-sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.pg-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 1.5rem;
    border-bottom: 1px solid var(--pg-border);
    background: var(--pg-bg-elevated);
    position: sticky;
    top: 0;
    z-index: 1020;
    backdrop-filter: blur(12px);
}

.pg-topbar-left { display: flex; align-items: center; gap: 1rem; }

.pg-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--pg-border);
    color: var(--pg-text);
    width: 40px; height: 40px;
    border-radius: var(--pg-radius-sm);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.pg-page-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.02em;
}

.pg-breadcrumb {
    font-size: 0.75rem;
    color: var(--pg-text-muted);
    margin-top: 0.15rem;
}

.pg-topbar-actions { display: flex; align-items: center; gap: 0.5rem; }

.pg-content { padding: 1.5rem; flex: 1; }

/* ?????? Page header ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pg-page-desc {
    color: var(--pg-text-secondary);
    font-size: 0.875rem;
    margin: 0.25rem 0 0;
}

/* ?????? Stat cards ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pg-stat-card {
    background: var(--pg-panel);
    border: 1px solid var(--pg-border);
    border-radius: var(--pg-radius);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    transition: border-color var(--pg-transition), box-shadow var(--pg-transition);
}

.pg-stat-card:hover {
    border-color: var(--pg-border-strong);
    box-shadow: var(--pg-shadow-sm);
}

.pg-stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.pg-stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.pg-stat-icon.green { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.pg-stat-icon.purple { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.pg-stat-icon.cyan { background: rgba(6, 182, 212, 0.15); color: #22d3ee; }
.pg-stat-icon.orange { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.pg-stat-icon.red { background: rgba(239, 68, 68, 0.15); color: #f87171; }

.pg-stat-body { flex: 1; min-width: 0; }
.pg-stat-label { font-size: 0.75rem; font-weight: 500; color: var(--pg-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.pg-stat-value { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; margin: 0.15rem 0; }
.pg-stat-meta { font-size: 0.8125rem; color: var(--pg-text-secondary); }

.pg-route-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    padding: 1rem;
}

.pg-route-tile {
    background: var(--pg-bg);
    border: 1px solid var(--pg-border);
    border-radius: var(--pg-radius);
    padding: 1rem;
}

.pg-route-tile-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.pg-route-ip { font-size: 0.95rem; font-weight: 600; }

.pg-route-tile-host {
    font-size: 0.8125rem;
    color: var(--pg-text-muted);
    margin-bottom: 0.75rem;
}

.pg-route-tile-meta,
.pg-route-tile-traffic {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.8125rem;
    margin-top: 0.5rem;
}

.pg-route-tile-traffic .route-rx,
.pg-route-tile-traffic .route-tx {
    font-weight: 600;
    color: var(--pg-text);
}

.pg-route-empty { grid-column: 1 / -1; }

.pg-progress {
    height: 4px;
    background: rgba(148, 163, 184, 0.15);
    border-radius: 99px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.pg-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--pg-accent), #06b6d4);
    border-radius: 99px;
    transition: width 0.6s ease;
}

/* ?????? Panels ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-panel {
    background: var(--pg-panel);
    border: 1px solid var(--pg-border);
    border-radius: var(--pg-radius);
    overflow: hidden;
    box-shadow: var(--pg-shadow-sm);
}

.pg-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--pg-border);
    font-weight: 600;
    font-size: 0.9375rem;
}

.pg-panel-body { padding: 1.25rem; }

.pg-panel-flush .pg-table { margin: 0; }

/* ?????? Tables ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.pg-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.pg-table th {
    text-align: left;
    padding: 0.75rem 1.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--pg-text-muted);
    background: rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid var(--pg-border);
    white-space: nowrap;
}

html:not(.dark) .pg-table th { background: #f8fafc; }

.pg-table td {
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--pg-border);
    vertical-align: middle;
}

.pg-table tbody tr { transition: background var(--pg-transition); }
.pg-table tbody tr:hover { background: var(--pg-panel-hover); }
.pg-table tbody tr:last-child td { border-bottom: none; }

.pg-table code {
    font-size: 0.8125rem;
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
}

html:not(.dark) .pg-table code { background: #eff6ff; color: #2563eb; }

/* ?????? Badges ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pg-badge-dot { width: 6px; height: 6px; border-radius: 50%; }

.pg-badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.pg-badge-success .pg-badge-dot { background: #10b981; }

.pg-badge-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.pg-badge-danger .pg-badge-dot { background: #ef4444; }

.pg-badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.pg-badge-warning .pg-badge-dot { background: #f59e0b; }

.pg-badge-info { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.pg-badge-info .pg-badge-dot { background: #3b82f6; }

.pg-badge-neutral { background: rgba(148, 163, 184, 0.12); color: #94a3b8; }
.pg-badge-neutral .pg-badge-dot { background: #64748b; }

.pg-badge-direct { background: rgba(6, 182, 212, 0.15); color: #22d3ee; }

/* ?????? Buttons ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: var(--pg-radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    transition: all var(--pg-transition);
    white-space: nowrap;
}

.pg-btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    box-shadow: 0 2px 8px var(--pg-accent-glow);
}

.pg-btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    transform: translateY(-1px);
}

.pg-btn-secondary {
    background: transparent;
    border-color: var(--pg-border-strong);
    color: var(--pg-text-secondary);
}

.pg-btn-secondary:hover { background: var(--pg-panel-hover); color: var(--pg-text); }

.pg-btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: var(--pg-text-secondary);
    border-color: var(--pg-border);
}

.pg-btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: var(--pg-text); }

.pg-btn-danger { background: rgba(239, 68, 68, 0.12); color: #f87171; border-color: rgba(239, 68, 68, 0.25); }
.pg-btn-danger:hover { background: rgba(239, 68, 68, 0.2); color: #fca5a5; }

.pg-btn-info { background: rgba(6, 182, 212, 0.12); color: #22d3ee; border-color: rgba(6, 182, 212, 0.25); }
.pg-btn-warning { background: rgba(245, 158, 11, 0.12); color: #fbbf24; border-color: rgba(245, 158, 11, 0.25); }

.pg-btn-sm { padding: 0.35rem 0.65rem; font-size: 0.75rem; }
.pg-btn-icon { width: 36px; height: 36px; padding: 0; }

.pg-btn-group { display: flex; flex-wrap: wrap; gap: 0.35rem; }

/* ?????? Forms ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--pg-text-secondary);
    margin-bottom: 0.4rem;
}

.pg-form-control,
.form-control.pg-input,
.form-select.pg-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--pg-border-strong);
    border-radius: var(--pg-radius-sm);
    color: var(--pg-text);
    font-family: inherit;
    font-size: 0.875rem;
    transition: border-color var(--pg-transition), box-shadow var(--pg-transition);
}

html:not(.dark) .pg-form-control,
html:not(.dark) .form-control.pg-input,
html:not(.dark) .form-select.pg-input {
    background: #f8fafc;
}

.pg-form-control:focus,
.form-control.pg-input:focus,
.form-select.pg-input:focus {
    outline: none;
    border-color: var(--pg-accent);
    box-shadow: 0 0 0 3px var(--pg-accent-glow);
    background: rgba(0, 0, 0, 0.3);
    color: var(--pg-text);
}

.pg-form-group { margin-bottom: 1.125rem; }

/* ?????? Alerts ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.125rem;
    border-radius: var(--pg-radius-sm);
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    border: 1px solid;
}

.pg-alert-info { background: rgba(59, 130, 246, 0.1); border-color: rgba(59, 130, 246, 0.25); color: #93c5fd; }
.pg-alert-danger { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.25); color: #fca5a5; }

.pg-alert-close {
    margin-left: auto;
    background: none; border: none;
    color: inherit; opacity: 0.7;
    cursor: pointer; font-size: 1.25rem; line-height: 1;
}

/* ?????? Empty state ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-empty {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--pg-text-muted);
}

.pg-empty i { font-size: 2.5rem; opacity: 0.4; margin-bottom: 0.75rem; display: block; }

/* ?????? Code block ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-code {
    background: #0d1117;
    color: #c9d1d9;
    padding: 1rem 1.25rem;
    border-radius: var(--pg-radius-sm);
    max-height: 400px;
    overflow: auto;
    font-size: 0.8125rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    border: 1px solid var(--pg-border);
}

/* ?????? Login ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-login-body {
    min-height: 100vh;
    display: flex;
    background: var(--pg-bg);
}

.pg-login-visual {
    flex: 1;
    display: none;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0c4a6e 100%);
    padding: 3rem;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.pg-login-visual::before {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
    top: -100px; right: -100px;
}

.pg-login-visual h1 { font-size: 2rem; font-weight: 700; color: #fff; position: relative; }
.pg-login-visual p { color: #94a3b8; font-size: 1rem; max-width: 400px; position: relative; }

.pg-login-features { list-style: none; padding: 0; margin: 2rem 0 0; position: relative; }
.pg-login-features li {
    display: flex; align-items: center; gap: 0.75rem;
    color: #cbd5e1; font-size: 0.875rem; margin-bottom: 0.75rem;
}
.pg-login-features li i { color: #22d3ee; }

.pg-login-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.pg-login-card {
    width: 100%;
    max-width: 420px;
}

.pg-login-card .pg-brand-icon {
    width: 52px; height: 52px;
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.pg-login-card h2 { font-size: 1.5rem; font-weight: 700; margin: 0 0 0.25rem; letter-spacing: -0.02em; }
.pg-login-card .pg-login-sub { color: var(--pg-text-muted); margin-bottom: 2rem; font-size: 0.875rem; }

/* ?????? Grid helpers ??????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
.pg-grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; }

/* ?????? Responsive ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? */
@media (min-width: 992px) {
    .pg-login-visual { display: flex; }
}

@media (max-width: 991px) {
    .pg-sidebar { transform: translateX(-100%); }
    .pg-sidebar.open { transform: translateX(0); box-shadow: var(--pg-shadow); }
    .pg-main { margin-left: 0; }
    .pg-menu-btn { display: flex; }
    .pg-content { padding: 1rem; }
    .pg-topbar { padding: 0.75rem 1rem; }
    .pg-stat-grid { grid-template-columns: repeat(2, 1fr); }
    .pg-table th, .pg-table td { padding: 0.65rem 0.875rem; }
    .pg-hide-mobile { display: none !important; }
}

@media (max-width: 575px) {
    .pg-stat-grid { grid-template-columns: 1fr; }
    .pg-page-header { flex-direction: column; }
    .pg-btn-group { width: 100%; }
    .pg-btn-group .pg-btn { flex: 1; }
}

/* Bootstrap overrides */
.table-dark { --bs-table-bg: transparent; --bs-table-color: var(--pg-text); }
.text-muted { color: var(--pg-text-muted) !important; }

.pg-onboard-steps {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.pg-onboard-step {
    padding: 0.5rem 1rem;
    border-radius: var(--pg-radius, 8px);
    border: 1px solid var(--pg-border);
    color: var(--pg-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
}
.pg-onboard-step.active {
    border-color: var(--pg-accent);
    color: var(--pg-text);
    background: rgba(59, 130, 246, 0.1);
}
.pg-onboard-step.done {
    border-color: var(--pg-success, #22c55e);
    color: var(--pg-success, #22c55e);
}

.pg-modal {
    background: var(--pg-panel);
    border: 1px solid var(--pg-border-strong);
    color: var(--pg-text);
    border-radius: var(--pg-radius);
    box-shadow: var(--pg-shadow);
}
.pg-modal .modal-header,
.pg-modal .modal-footer {
    border-color: var(--pg-border);
}
.pg-modal .modal-title {
    color: var(--pg-text);
    font-weight: 600;
}
.pg-modal .btn-close {
    filter: invert(1) grayscale(1);
}
html:not(.dark) .pg-modal .btn-close {
    filter: none;
}