:root {
    --bg: #071018;
    --surface: #0d1824;
    --surface-raised: #111f2d;
    --surface-soft: #152637;
    --border: #22384b;
    --border-bright: #36536a;
    --text: #f2f7fa;
    --text-soft: #b9cad5;
    --muted: #7890a1;
    --accent: #72e0bd;
    --accent-ink: #05271d;
    --blue: #72b6f2;
    --warning: #f2c879;
    --danger: #ff8f9b;
    --content: 1480px;
    --radius: 18px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--bg);
}

body {
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 15% 0%, rgba(52, 117, 139, 0.16), transparent 32rem),
        var(--bg);
    color: var(--text);
}

button,
input {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    cursor: pointer;
}

[hidden] {
    display: none !important;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 100;
    padding: 10px 14px;
    border-radius: 9px;
    background: var(--text);
    color: var(--bg);
    font-weight: 750;
    text-decoration: none;
    transform: translateY(-150%);
}

.skip-link:focus {
    transform: none;
}

.ambient-grid {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.32;
    background-image:
        linear-gradient(rgba(114, 224, 189, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(114, 224, 189, 0.025) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.topbar {
    position: relative;
    z-index: 5;
    display: flex;
    width: min(var(--content), calc(100% - 64px));
    min-height: 80px;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    border-bottom: 1px solid rgba(120, 144, 161, 0.2);
}

.brand {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    gap: 12px;
    color: var(--text);
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid rgba(114, 224, 189, 0.35);
    border-radius: 12px;
    background: rgba(114, 224, 189, 0.1);
    color: var(--accent);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0.08em;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 14px;
}

.brand small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

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

.topbar nav a,
.topbar nav button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    border: 1px solid transparent;
    border-radius: 10px;
    background: transparent;
    color: var(--text-soft);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.topbar nav a:hover,
.topbar nav button:hover {
    border-color: var(--border);
    background: var(--surface);
    color: var(--text);
}

main {
    position: relative;
    width: min(var(--content), calc(100% - 64px));
    margin: 0 auto;
    padding: 68px 0 96px;
}

.access-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.7fr);
    gap: clamp(48px, 8vw, 120px);
    min-height: 600px;
    align-items: center;
}

.eyebrow,
.section-label {
    margin: 0;
    color: var(--accent);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.access-copy h1,
.dashboard-heading h1 {
    margin: 16px 0 20px;
    font-size: clamp(48px, 7vw, 86px);
    letter-spacing: -0.06em;
    line-height: 0.96;
}

.access-copy > p:last-child,
.heading-copy {
    max-width: 690px;
    margin: 0;
    color: var(--text-soft);
    font-size: 17px;
    line-height: 1.7;
}

.token-form {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(13, 24, 36, 0.92);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
}

.token-form label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 750;
}

.token-form > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
}

.token-form input {
    min-width: 0;
    min-height: 48px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    outline: 0;
    background: var(--bg);
    color: var(--text);
}

.token-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(114, 224, 189, 0.12);
}

.token-form button,
.primary-button {
    min-height: 48px;
    padding: 0 18px;
    border: 0;
    border-radius: 10px;
    background: var(--accent);
    color: var(--accent-ink);
    font-size: 13px;
    font-weight: 850;
}

.form-error {
    min-height: 20px;
    margin: 12px 0 0;
    color: var(--danger);
    font-size: 12px;
}

.dashboard-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
    padding: 24px 0 48px;
}

.dashboard-heading h1 {
    margin-bottom: 14px;
    font-size: clamp(46px, 6vw, 78px);
}

.pulse {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 5px rgba(114, 224, 189, 0.09);
}

.heading-actions {
    display: flex;
    flex: 0 0 auto;
    gap: 8px;
}

.heading-actions button {
    min-height: 46px;
}

.secondary-button {
    padding: 0 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text-soft);
    font-size: 13px;
    font-weight: 750;
}

.primary-button:disabled,
.secondary-button:disabled {
    cursor: wait;
    opacity: 0.55;
}

.notice {
    margin-bottom: 18px;
    padding: 13px 16px;
    border: 1px solid rgba(114, 182, 242, 0.28);
    border-radius: 10px;
    background: rgba(114, 182, 242, 0.08);
    color: var(--text-soft);
    font-size: 13px;
}

.notice.is-error {
    border-color: rgba(255, 143, 155, 0.32);
    background: rgba(255, 143, 155, 0.08);
    color: #ffdce1;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.summary-card,
.panel {
    border: 1px solid var(--border);
    background: rgba(13, 24, 36, 0.88);
}

.summary-card {
    min-height: 154px;
    padding: 20px;
    border-radius: 15px;
}

.summary-card p,
.summary-card span {
    margin: 0;
    color: var(--muted);
    font-size: 11px;
}

.summary-card p {
    font-weight: 750;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.summary-card strong {
    display: block;
    margin: 18px 0 8px;
    font-size: clamp(27px, 3vw, 38px);
    letter-spacing: -0.045em;
}

.panel {
    overflow: hidden;
    margin-top: 18px;
    border-radius: var(--radius);
}

.panel-heading {
    display: flex;
    min-height: 96px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 24px;
    border-bottom: 1px solid var(--border);
}

.panel-heading h2 {
    margin: 6px 0 0;
    font-size: 25px;
    letter-spacing: -0.035em;
}

.panel-heading > p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--border);
}

.node-card {
    min-width: 0;
    padding: 24px;
    background: var(--surface);
}

.node-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.node-title {
    min-width: 0;
}

.node-title h3 {
    overflow: hidden;
    margin: 0;
    font-size: 19px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.node-title p {
    overflow: hidden;
    margin: 6px 0 0;
    color: var(--muted);
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status-badge,
.state-badge {
    display: inline-flex;
    min-height: 29px;
    align-items: center;
    gap: 7px;
    padding: 0 10px;
    border: 1px solid rgba(114, 224, 189, 0.22);
    border-radius: 999px;
    background: rgba(114, 224, 189, 0.07);
    color: var(--accent);
    font-size: 10px;
    font-weight: 850;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.status-badge.is-offline,
.state-badge.is-error {
    border-color: rgba(255, 143, 155, 0.28);
    background: rgba(255, 143, 155, 0.08);
    color: var(--danger);
}

.status-badge::before {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    content: "";
}

.node-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 0;
}

.node-metrics div {
    min-width: 0;
}

.node-metrics dt,
.sync-metrics dt {
    color: var(--muted);
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.node-metrics dd,
.sync-metrics dd {
    overflow: hidden;
    margin: 5px 0 0;
    color: var(--text);
    font-size: 15px;
    font-weight: 720;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.capacity {
    margin-top: 24px;
}

.capacity-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 11px;
}

.capacity-track {
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--surface-soft);
}

.capacity-track span {
    display: block;
    width: var(--capacity, 0%);
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
}

.node-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 10px;
}

.offline-copy {
    min-height: 186px;
    margin: 0;
    color: var(--text-soft);
    line-height: 1.6;
}

.sync-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
}

.sync-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 30px;
    margin: 0;
    padding: 28px 24px;
}

.sync-log {
    padding: 28px 24px;
    border-left: 1px solid var(--border);
    background: rgba(7, 16, 24, 0.34);
}

.sync-log h3 {
    margin: 0 0 14px;
    font-size: 13px;
}

.sync-log ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    color: var(--text-soft);
    font-size: 12px;
    list-style: none;
}

.sync-log li {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
}

.sync-note {
    margin: 0;
    padding: 14px 24px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 11px;
    line-height: 1.55;
}

.sr-status {
    position: fixed;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}

.analytics-summary {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.range-control {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.range-control select {
    min-height: 44px;
    padding: 0 36px 0 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    background: var(--surface-raised);
    font: inherit;
    text-transform: none;
    letter-spacing: normal;
}

.chart-wrap {
    position: relative;
    min-height: 260px;
}

#traffic-chart {
    display: block;
    width: 100%;
    height: 260px;
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 18px 0;
}

.header-chip {
    padding: 6px 9px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--muted);
    font: 700 .7rem ui-monospace, SFMono-Regular, Consolas, monospace;
}

.bar-list {
    display: grid;
    gap: 14px;
}

.bar-heading {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 7px;
    color: var(--muted);
    font-size: .85rem;
}

.bar-heading strong { color: var(--text); }

.bar-track {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(111, 143, 168, .14);
}

.bar-track span {
    display: block;
    width: var(--bar);
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), #53a7ff);
}

.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-variant-numeric: tabular-nums;
}

th, td {
    padding: 13px 12px;
    border-bottom: 1px solid var(--border);
    text-align: right;
    white-space: nowrap;
}

th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.endpoint-name { color: var(--accent); font: 700 .82rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.empty-state { margin: 0; padding: 44px 12px; color: var(--muted); text-align: center; }

@media (max-width: 1200px) {
    .analytics-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
    .analytics-summary, .analysis-grid { grid-template-columns: 1fr; }
    .heading-actions { width: 100%; }
    .range-control { width: 100%; }
    .range-control select { width: 100%; }
}

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
}

@media (max-width: 980px) {
    .access-panel {
        grid-template-columns: 1fr;
        gap: 36px;
        min-height: auto;
        padding: 60px 0;
    }

    .dashboard-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .node-grid,
    .sync-layout {
        grid-template-columns: 1fr;
    }

    .sync-log {
        border-top: 1px solid var(--border);
        border-left: 0;
    }
}

@media (max-width: 640px) {
    .topbar,
    main {
        width: calc(100% - 32px);
    }

    .topbar {
        min-height: 70px;
    }

    .brand small,
    .topbar nav a {
        display: none;
    }

    main {
        padding-top: 42px;
    }

    .access-copy h1,
    .dashboard-heading h1 {
        font-size: clamp(42px, 13vw, 62px);
    }

    .token-form {
        padding: 20px;
    }

    .token-form > div,
    .summary-grid,
    .node-metrics,
    .sync-metrics {
        grid-template-columns: 1fr;
    }

    .heading-actions {
        width: 100%;
    }

    .heading-actions button {
        flex: 1;
    }

    .panel-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .node-card,
    .sync-metrics,
    .sync-log {
        padding: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

@media (forced-colors: active) {
    .summary-card,
    .panel,
    .node-card,
    .token-form {
        border: 1px solid CanvasText;
    }
}