/* ==========================================================================
   KULO KVM CLOUD — AWS MANAGEMENT CONSOLE THEME (LIGHT DEFAULT)
   Cloud Infrastructure System UI (AWS Console Reference / Cloudscape style)
   Clean, dense, professional tabular layout, zero AI slop, zero emojis.
   ========================================================================== */

:root {
    /* AWS Console Light Mode (Default) */
    --bg-page: #F2F3F3;
    --bg-surface: #FFFFFF;
    --bg-surface-elevated: #FAFAFA;
    --bg-surface-subtle: #EAEDED;
    --bg-input: #FFFFFF;
    --bg-nav: #232F3E; /* AWS Squall / Dark Navy Header */
    --bg-nav-sub: #131A22;

    --border-subtle: #EAEDED;
    --border-default: #D5DBDB;
    --border-strong: #AAB7B8;
    --border-focus: #0073BB;

    --text-primary: #16191F;
    --text-secondary: #545B64;
    --text-muted: #879596;
    --text-inverse: #FFFFFF;
    --text-nav: #D5DBDB;

    --accent-primary: #EC7211; /* AWS Console Orange */
    --accent-primary-hover: #EB5F07;
    --accent-blue: #0073BB; /* AWS Action Blue */
    --accent-blue-hover: #005A94;
    --accent-cyan: #0073BB;

    --status-success: #1D8102;
    --status-success-bg: #EDF7ED;
    --status-success-border: #80C883;

    --status-warning: #D15B00;
    --status-warning-bg: #FFF8E6;
    --status-warning-border: #F5BC66;

    --status-danger: #D13212;
    --status-danger-bg: #FDF3F1;
    --status-danger-border: #F59B8B;

    --status-info: #0073BB;
    --status-info-bg: #F1F8FD;
    --status-info-border: #80BCE3;

    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Amazon Ember Mono", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* Optional Dark Console Theme */
[data-theme="dark"] {
    --bg-page: #0F141C;
    --bg-surface: #161E2E;
    --bg-surface-elevated: #1F2937;
    --bg-surface-subtle: #2A3649;
    --bg-input: #111827;
    --bg-nav: #0D121B;
    --bg-nav-sub: #090C12;

    --border-subtle: #242E42;
    --border-default: #334155;
    --border-strong: #475569;
    --border-focus: #38BDF8;

    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --text-inverse: #0F141C;
    --text-nav: #94A3B8;

    --accent-primary: #EC7211;
    --accent-primary-hover: #EB5F07;
    --accent-blue: #38BDF8;
    --accent-blue-hover: #0284C7;
    --accent-cyan: #38BDF8;

    --status-success: #34D399;
    --status-success-bg: rgba(52, 211, 153, 0.15);
    --status-success-border: rgba(52, 211, 153, 0.4);

    --status-warning: #FBBF24;
    --status-warning-bg: rgba(251, 191, 36, 0.15);
    --status-warning-border: rgba(251, 191, 36, 0.4);

    --status-danger: #F87171;
    --status-danger-bg: rgba(248, 113, 113, 0.15);
    --status-danger-border: rgba(248, 113, 113, 0.4);

    --status-info: #38BDF8;
    --status-info-bg: rgba(56, 189, 248, 0.15);
    --status-info-border: rgba(56, 189, 248, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.mono {
    font-family: var(--font-mono);
}

.lucide {
    width: 1rem;
    height: 1rem;
    vertical-align: middle;
    stroke-width: 2px;
    display: inline-block;
    flex-shrink: 0;
}

.icon-sm { width: 0.875rem; height: 0.875rem; }
.icon-md { width: 1.125rem; height: 1.125rem; }
.icon-lg { width: 1.375rem; height: 1.375rem; }

/* Structural Container */
.app-header {
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border-default);
    position: sticky;
    top: 0;
    z-index: 100;
}

.banner-strip {
    background: var(--bg-nav-sub);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px 16px;
    font-size: 0.75rem;
    color: var(--text-nav);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar {
    max-width: 1440px;
    margin: 0 auto;
    padding: 8px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #FFFFFF;
}

.brand-icon {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm);
    background: var(--accent-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.brand-text {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #FFFFFF;
}

.brand-tag {
    font-size: 0.6875rem;
    padding: 2px 5px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #FFA500;
    font-family: var(--font-mono);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* AWS Console Nav Buttons */
.nav-menu .btn {
    color: var(--text-nav);
    background: transparent;
    border-color: transparent;
}
.nav-menu .btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
}
.nav-menu .btn-primary {
    background: var(--accent-primary);
    color: #FFFFFF;
    border-color: var(--accent-primary);
    font-weight: 600;
}
.nav-menu .btn-primary:hover {
    background: var(--accent-primary-hover);
}

.container-main {
    max-width: 1440px;
    margin: 0 auto;
    padding: 16px 16px 40px;
    width: 100%;
    flex: 1;
}

/* Card & Panels - AWS Console Clean Style */
.kvm-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    box-shadow: 0 1px 1px 0 rgba(0, 28, 36, 0.1);
    overflow: hidden;
}

.kvm-card-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-default);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background: var(--bg-surface-elevated);
}

.kvm-card-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.kvm-card-body {
    padding: 14px;
}

/* Button System - AWS Style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.8125rem;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    border: 1px solid var(--border-strong);
    transition: all 0.1s ease;
    white-space: nowrap;
    background: #FFFFFF;
    color: var(--text-primary);
}

.btn:hover {
    background: #FAFAFA;
    border-color: var(--text-secondary);
}

.btn-sm {
    padding: 4px 8px;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 9px 16px;
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--accent-primary);
    color: #FFFFFF;
    border-color: var(--accent-primary);
}
.btn-primary:hover {
    background: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    color: #FFFFFF;
}

.btn-secondary {
    background: #FFFFFF;
    color: var(--text-primary);
    border-color: var(--border-strong);
}
.btn-secondary:hover {
    background: var(--bg-surface-subtle);
    border-color: var(--text-secondary);
}

.btn-danger {
    background: var(--status-danger-bg);
    color: var(--status-danger);
    border-color: var(--status-danger-border);
}
.btn-danger:hover {
    background: var(--status-danger);
    color: #FFFFFF;
}

.btn-success {
    background: var(--status-success-bg);
    color: var(--status-success);
    border-color: var(--status-success-border);
}
.btn-success:hover {
    background: var(--status-success);
    color: #FFFFFF;
}

.btn-warning {
    background: var(--status-warning-bg);
    color: var(--status-warning);
    border-color: var(--status-warning-border);
}
.btn-warning:hover {
    background: var(--status-warning);
    color: #FFFFFF;
}

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

.form-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 9px 12px;
    font-size: 0.875rem;
    transition: border-color 0.15s;
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 1px var(--border-focus);
}

.form-help {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 5px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 7px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border: 1px solid transparent;
}

.badge-running, .badge-success {
    background: var(--status-success-bg);
    color: var(--status-success);
    border-color: var(--status-success-border);
}

.badge-stopped, .badge-danger {
    background: var(--status-danger-bg);
    color: var(--status-danger);
    border-color: var(--status-danger-border);
}

.badge-warning, .badge-suspended {
    background: var(--status-warning-bg);
    color: var(--status-warning);
    border-color: var(--status-warning-border);
}

.badge-neutral {
    background: var(--bg-surface-subtle);
    color: var(--text-secondary);
    border-color: var(--border-subtle);
}

/* Instance Selector Strip */
.instance-switcher-strip {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.instance-pill-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.instance-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface-elevated);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s;
}

.instance-pill:hover {
    border-color: var(--border-default);
    color: var(--text-primary);
}

.instance-pill.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #FFFFFF;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online { background: var(--status-success); }
.status-dot.offline { background: var(--status-danger); }
.status-dot.warning { background: var(--status-warning); }

/* Tabs Layout - AWS Cloudscape style */
.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--border-default);
    margin-bottom: 16px;
    overflow-x: auto;
}

.tab-nav-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.1s;
}

.tab-nav-btn:hover {
    color: var(--accent-blue);
}

.tab-nav-btn.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
    font-weight: 700;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(2px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Telemetry & Metrics Well */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.metric-well {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 8px 0;
    font-family: var(--font-mono);
}

.progress-track {
    width: 100%;
    height: 6px;
    background: var(--bg-surface-subtle);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-cyan);
    transition: width 0.3s ease;
}

.metric-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Console & Connection Terminal Well */
.terminal-well {
    background: #080C13;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
}

.terminal-row {
    background: #05080E;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

/* Grid & Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
    text-align: left;
}

.data-table th {
    background: var(--bg-surface-elevated);
    padding: 10px 14px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.data-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.data-table tr:hover td {
    background: var(--bg-surface-elevated);
}

/* Selection Cards (Region, Hardware, Billing Cycles) */
.spec-selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.spec-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.spec-card:hover {
    border-color: var(--border-default);
    background: var(--bg-surface-elevated);
}

.spec-card.selected {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.05);
    box-shadow: 0 0 0 1px var(--accent-cyan);
}

.spec-card.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    background: var(--bg-surface-subtle);
}

/* Toast */
#toast-system {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 18px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 10000;
    display: none;
    transform: translateY(10px);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

#toast-system.active {
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateY(0);
}

#toast-system.error {
    border-color: var(--status-danger-border);
    background: #1F1315;
    color: #FCA5A5;
}

#toast-system.success {
    border-color: var(--status-success-border);
    background: #0E2219;
    color: #6EE7B7;
}

/* Modal Overlay & Dialog */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11, 15, 23, 0.78);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

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

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    max-width: 520px;
    width: 100%;
    overflow: hidden;
    animation: modalIn 0.15s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-menu {
        width: 100%;
        justify-content: flex-start;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    .terminal-row {
        flex-direction: column;
        align-items: flex-start;
    }
    .terminal-row button {
        width: 100%;
    }
}
/* ==========================================================================
   KULO KVM CLOUD — AWS CONSOLE LAYOUT SYSTEM (APPEND)
   Opsi A: struktur Cloudscape asli — page header, breadcrumb, panel, table.
   ========================================================================== */

/* ---- Page Header (Cloudscape style) ---- */
.page-header {
    padding: 20px 0 16px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 20px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: var(--accent-blue);
    text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--text-muted); }

.page-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    flex-wrap: wrap;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.25;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 6px;
    max-width: 720px;
    line-height: 1.5;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---- Panel (AWS container) ---- */
.panel {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    overflow: hidden;
}

.panel-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    background: var(--bg-surface);
}

.panel-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 3px;
}

.panel-body {
    padding: 20px;
}

.panel-body-flush {
    padding: 0;
}

/* ---- Key-value definition list (AWS Description list) ---- */
.desc-list {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 0;
}
.desc-list dt {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-subtle);
}
.desc-list dd {
    padding: 10px 0;
    color: var(--text-primary);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-subtle);
}

/* ---- Stat / KPI tile ---- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.stat-tile {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 18px 20px;
}
.stat-tile-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}
.stat-tile-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 8px;
    font-family: var(--font-mono);
    line-height: 1.2;
}
.stat-tile-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ---- Alert / Flash ---- */
.alert {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--border-default);
    border-left-width: 4px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    font-size: 0.875rem;
    margin-bottom: 16px;
}
.alert-info    { border-left-color: var(--status-info);    background: var(--status-info-bg); }
.alert-success { border-left-color: var(--status-success); background: var(--status-success-bg); }
.alert-warning { border-left-color: var(--status-warning); background: var(--status-warning-bg); }
.alert-danger  { border-left-color: var(--status-danger);  background: var(--status-danger-bg); }
.alert-title { font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.alert-body  { color: var(--text-secondary); line-height: 1.5; }

/* ---- Empty state ---- */
.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
}
.empty-state-icon {
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}
.empty-state-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

/* ---- AWS Table (data-table: refine) ---- */
.data-table thead th {
    background: var(--bg-surface-subtle);
    border-bottom: 1px solid var(--border-strong);
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
}
.data-table tbody td {
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.8125rem;
}
.data-table tbody tr:nth-child(even) td {
    background: #FCFCFC;
}
.data-table tbody tr:hover td {
    background: var(--status-info-bg);
}
.data-table .cell-primary {
    font-weight: 700;
    color: var(--text-primary);
}
.data-table .cell-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.data-table .cell-actions {
    text-align: right;
    white-space: nowrap;
}

/* ---- Segmented control (AWS tabs pill) ---- */
.segmented {
    display: inline-flex;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-surface);
}
.segmented button, .segmented a {
    padding: 6px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    border-right: 1px solid var(--border-default);
}
.segmented button:last-child, .segmented a:last-child { border-right: none; }
.segmented button:hover, .segmented a:hover { background: var(--bg-surface-subtle); color: var(--text-primary); }
.segmented button.active, .segmented a.active {
    background: var(--accent-blue);
    color: #FFFFFF;
}

/* ---- Side-by-side two column ---- */
.split-2 {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 20px;
    align-items: start;
}
@media (max-width: 992px) {
    .split-2 { grid-template-columns: 1fr; }
    .desc-list { grid-template-columns: 1fr; }
    .desc-list dt { border-bottom: none; padding-bottom: 2px; }
}

/* ---- Utility ---- */
.stack-16 > * + * { margin-top: 16px; }
.stack-20 > * + * { margin-top: 20px; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.mono-lg { font-family: var(--font-mono); font-size: 1rem; font-weight: 700; }