/* ==========================================================================
   VPN Gateway — Modern Clean Network Appliance UI (Emerald Slate Theme)
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-primary: #0b0f17;
    --bg-secondary: #111827;
    --bg-card: #151d2c;
    --bg-card-hover: #1a2436;
    --bg-card-subtle: #0f1523;
    --bg-input: #0e1420;
    
    /* Borders */
    --border: #222f44;
    --border-subtle: #192334;
    --border-focus: #10b981;
    
    /* Typography */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Accents (Emerald Green) */
    --accent: #10b981;
    --accent-hover: #059669;
    --accent-active: #047857;
    --accent-glow: rgba(16, 185, 129, 0.12);
    --accent-glow-strong: rgba(16, 185, 129, 0.25);
    
    /* Status Colors */
    --green: #10b981;
    --green-bg: rgba(16, 185, 129, 0.1);
    --green-border: rgba(16, 185, 129, 0.25);
    
    --amber: #f59e0b;
    --amber-bg: rgba(245, 158, 11, 0.1);
    --amber-border: rgba(245, 158, 11, 0.25);
    
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.1);
    --red-border: rgba(239, 68, 68, 0.25);
    
    --blue: #3b82f6;
    --blue-bg: rgba(59, 130, 246, 0.1);
    --blue-border: rgba(59, 130, 246, 0.25);

    /* Sizing & Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 68px;
    --header-height: 56px;
    --radius: 10px;
    --radius-sm: 6px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ==========================================================================
   MOBILE TOPBAR (Visible only on <= 768px)
   ========================================================================== */
.mobile-topbar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 90;
    padding: 0 16px;
    align-items: center;
    justify-content: space-between;
}

.mobile-topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.topbar-btn:hover {
    background: var(--bg-card);
    border-color: var(--accent);
}

.mobile-brand {
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    text-decoration: none;
}

.mobile-brand svg {
    color: var(--accent);
}

/* Backdrop for Mobile Drawer */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 95;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

body.drawer-open .sidebar-backdrop {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* ==========================================================================
   SIDEBAR (Desktop & Mobile Drawer)
   ========================================================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition), transform var(--transition);
}

.sidebar-header {
    height: 64px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    letter-spacing: -0.01em;
    text-decoration: none;
    overflow: hidden;
    white-space: nowrap;
}

.logo svg {
    color: var(--accent);
    flex-shrink: 0;
}

.sidebar-toggle-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.sidebar-toggle-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card);
    border-color: var(--border);
}

.sidebar-toggle-btn svg {
    transition: transform var(--transition);
}

.nav-links {
    list-style: none;
    padding: 12px 8px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-links li {
    margin-bottom: 2px;
    position: relative;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-links a svg {
    flex-shrink: 0;
}

.nav-links a:hover {
    color: var(--text-primary);
    background: var(--accent-glow);
}

.nav-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
    font-weight: 600;
}

.sidebar-footer {
    padding: 12px 8px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.nav-user-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-user-link:hover {
    color: var(--text-primary);
    background: var(--accent-glow);
}

.nav-user-link.logout:hover {
    color: var(--red);
    background: var(--red-bg);
}

/* ==========================================================================
   SIDEBAR COLLAPSED (Desktop Icon-Rail)
   ========================================================================== */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

body.sidebar-collapsed .logo span,
body.sidebar-collapsed .nav-links a span,
body.sidebar-collapsed .nav-user-link span {
    display: none;
}

body.sidebar-collapsed .sidebar-header {
    padding: 0 10px;
    justify-content: center;
}

body.sidebar-collapsed .logo {
    display: none;
}

body.sidebar-collapsed .sidebar-toggle-btn {
    width: 38px;
    height: 38px;
}

body.sidebar-collapsed .sidebar-toggle-btn svg {
    transform: rotate(180deg);
}

body.sidebar-collapsed .nav-links a {
    justify-content: center;
    padding: 12px 0;
}

body.sidebar-collapsed .nav-user-link {
    justify-content: center;
    padding: 10px 0;
}

/* Floating Tooltip for Icon Rail */
body.sidebar-collapsed .nav-links li:hover::after {
    content: attr(data-title);
    position: absolute;
    left: calc(var(--sidebar-collapsed-width) + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 120;
    pointer-events: none;
}

/* ==========================================================================
   MAIN CONTENT AREA
   ========================================================================== */
main {
    min-height: 100vh;
    padding: 28px 36px;
    transition: margin-left var(--transition);
}

main:not(.with-sidebar) {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

main.with-sidebar {
    margin-left: var(--sidebar-width);
}

body.sidebar-collapsed main.with-sidebar {
    margin-left: var(--sidebar-collapsed-width);
}

/* ==========================================================================
   AUTHENTICATION / LOGIN / SETUP
   ========================================================================== */
.auth-container {
    width: 100%;
    max-width: 400px;
    margin: auto;
    animation: fadeIn 0.25s ease;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
    box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.auth-card .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 22px;
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.auth-card .logo svg {
    stroke: var(--accent);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.auth-card h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.auth-card .form-group {
    margin-bottom: 18px;
}

.auth-card .form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: block;
}

.auth-card .btn-primary {
    height: 42px;
    font-size: 14px;
    font-weight: 600;
    margin-top: 10px;
}

/* ==========================================================================
   PAGE HEADER
   ========================================================================== */
.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 13.5px;
    margin-top: 4px;
}

/* ==========================================================================
   ALERT BANNER (Connection Lost / Notice)
   ========================================================================== */
.alert-banner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeIn 0.3s ease;
}

.alert-banner.alert-warning {
    border-color: var(--amber-border);
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.08) 0%, rgba(21, 29, 44, 0.95) 100%);
}

.alert-banner.alert-error {
    border-color: var(--red-border);
    background: linear-gradient(180deg, rgba(239, 68, 68, 0.08) 0%, rgba(21, 29, 44, 0.95) 100%);
}

.alert-banner-content {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    flex: 1;
    min-width: 260px;
}

.alert-banner-icon {
    color: var(--amber);
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-banner-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.alert-banner-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==========================================================================
   CARDS & GRIDS
   ========================================================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    transition: border-color var(--transition);
}

.card:hover {
    border-color: #2e3e58;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 10px;
}

.card-title {
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title svg {
    color: var(--accent);
}

.grid {
    display: grid;
    gap: 16px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Status KPI Stat Cards */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px;
    transition: all var(--transition);
}

.stat-card:hover {
    border-color: #2e3e58;
    background: var(--bg-card-hover);
}

.stat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.stat-value {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.stat-sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* ==========================================================================
   STATUS BADGES & INDICATORS
   ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.pulse {
    animation: dotPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

.badge-connected, .badge-running, .badge-success {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid var(--green-border);
}
.badge-connected .status-dot, .badge-running .status-dot, .badge-success .status-dot {
    background: var(--green);
}

.badge-connecting, .badge-waiting, .badge-lost, .badge-warning {
    background: var(--amber-bg);
    color: var(--amber);
    border: 1px solid var(--amber-border);
}
.badge-connecting .status-dot, .badge-waiting .status-dot, .badge-lost .status-dot, .badge-warning .status-dot {
    background: var(--amber);
}

.badge-disconnected, .badge-stopped, .badge-error, .badge-danger {
    background: var(--red-bg);
    color: var(--red);
    border: 1px solid var(--red-border);
}
.badge-disconnected .status-dot, .badge-stopped .status-dot, .badge-error .status-dot, .badge-danger .status-dot {
    background: var(--red);
}

.badge-subtle {
    background: var(--bg-card-subtle);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* ==========================================================================
   SEGMENTED CONTROLS & TABS
   ========================================================================== */
.segmented-tabs {
    display: inline-flex;
    background: var(--bg-card-subtle);
    padding: 3px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    gap: 2px;
}

.traffic-tab {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 4px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.traffic-tab:hover {
    color: var(--text-primary);
}

.traffic-tab.active {
    background: var(--bg-card);
    color: var(--accent);
    font-weight: 600;
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   METRIC TILES (Traffic RX/TX & Live Counters)
   ========================================================================== */
.metric-tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.metric-tile {
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.metric-tile-label {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.metric-tile-val {
    font-size: 22px;
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    margin-top: 2px;
    letter-spacing: -0.02em;
}

.metric-tile-meta {
    text-align: right;
}

.metric-tile-meta-label {
    font-size: 11px;
    color: var(--text-muted);
}

.metric-tile-meta-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Specific speed colors */
.color-rx { color: var(--green); }
.color-tx { color: #60a5fa; }

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13.5px;
    transition: all var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Toggle Switches */
.toggle {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    cursor: pointer;
    flex-shrink: 0;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--border);
    transition: all var(--transition);
    border-radius: 22px;
    border: 1px solid var(--border-subtle);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    transition: all var(--transition);
    border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
    background-color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow-strong);
}

.toggle input:checked + .toggle-slider:before {
    transform: translateX(18px);
    background-color: #ffffff;
}

/* Password Input with eye toggle */
.input-group-password {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group-password .form-control {
    padding-right: 42px;
}

.password-toggle-btn {
    position: absolute;
    right: 8px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: color var(--transition);
}

.password-toggle-btn:hover {
    color: var(--text-primary);
}

/* Form section headers & card dividers */
.form-section-title {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.form-section-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.4;
}

.form-divider {
    height: 1px;
    background: var(--border);
    margin: 20px 0;
    border: none;
}

.input-unit-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-unit-wrapper .form-control {
    padding-right: 48px;
}

.input-unit-label {
    position: absolute;
    right: 12px;
    font-size: 12px;
    color: var(--text-muted);
    pointer-events: none;
    font-weight: 500;
}


/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.btn-primary, .btn-emerald {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover, .btn-emerald:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 4px 12px var(--accent-glow-strong);
}

.btn-success {
    background: var(--green);
    color: #fff;
}
.btn-success:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: var(--red);
    color: #fff;
}
.btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background: var(--accent-glow);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 12.5px;
}

.btn-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Table Row Action Buttons: Always equal width & perfectly straight */
.action-btn-group {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    flex-wrap: wrap;
}

.action-btn-group form {
    display: inline-block;
    margin: 0;
}

.btn-action {
    width: 72px;
    height: 28px;
    padding: 0;
    font-size: 11.5px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-radius: var(--radius-sm);
    box-sizing: border-box;
    white-space: nowrap;
}

/* ==========================================================================
   TABLES
   ========================================================================== */
.table-container,
.table-responsive {
    overflow-x: auto;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
}

table,
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    margin: 0;
}

table th, table td,
.table th, .table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

table th,
.table th {
    background: var(--bg-card-subtle);
    font-weight: 600;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

table tr:hover td,
.table tr:hover td {
    background: var(--bg-card-hover);
}

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

.table th.text-center, .table td.text-center,
table th.text-center, table td.text-center {
    text-align: center;
}

.table th.text-right, .table td.text-right,
table th.text-right, table td.text-right {
    text-align: right;
}

.example-pill {
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 11px;
}

.example-pill:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

.route-result-box {
    margin-top: 16px;
    padding: 16px 20px;
    border-radius: var(--radius);
    font-size: 13.5px;
    line-height: 1.5;
    animation: fadeIn 0.25s ease;
}

.route-result-vpn {
    background: var(--green-bg);
    border: 1px solid var(--green-border);
}

.route-result-internet {
    background: var(--blue-bg);
    border: 1px solid var(--blue-border);
}

.route-result-error {
    background: var(--red-bg);
    border: 1px solid var(--red-border);
}

code {
    background: var(--bg-card-subtle);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 12.5px;
}

/* ==========================================================================
   FLASH MESSAGES
   ========================================================================== */
.flash-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 400px;
}

.flash {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    cursor: pointer;
    animation: slideIn 0.25s ease;
    backdrop-filter: blur(8px);
    border: 1px solid;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.flash-success { background: var(--green-bg); color: var(--green); border-color: var(--green-border); }
.flash-error { background: var(--red-bg); color: var(--red); border-color: var(--red-border); }
.flash-warning { background: var(--amber-bg); color: var(--amber); border-color: var(--amber-border); }
.flash-info { background: var(--blue-bg); color: var(--blue); border-color: var(--blue-border); }

.flash-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 18px;
    cursor: pointer;
    margin-left: 12px;
    opacity: 0.7;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   PROGRESS BARS
   ========================================================================== */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-card-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.progress-fill.green { background: var(--green); }
.progress-fill.yellow { background: var(--amber); }
.progress-fill.red { background: var(--red); }

/* ==========================================================================
   MODAL (OTP / Dialogs)
   ========================================================================== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 500;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.2s ease;
}

.modal-lg {
    max-width: 580px;
}

.modal h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-secondary); }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    main { padding: 24px 24px; }
}

@media (max-width: 768px) {
    .mobile-topbar {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
        width: 260px !important;
        box-shadow: 0 0 40px rgba(0, 0, 0, 0.6);
    }

    body.drawer-open .sidebar {
        transform: translateX(0);
    }

    /* On mobile, sidebar toggle button inside sidebar header closes drawer */
    .sidebar-toggle-btn svg {
        transform: rotate(180deg);
    }

    main.with-sidebar {
        margin-left: 0 !important;
        padding: 20px 16px;
        padding-top: calc(var(--header-height) + 16px);
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .stat-card {
        min-height: auto;
    }

    .metric-tile-grid {
        grid-template-columns: 1fr;
    }
}