:root {
    --canvas: #010102;
    --surface-1: #0f1011;
    --surface-2: #15171a;
    --surface-3: #1c1f24;
    --hairline: #282b31;
    --hairline-strong: #3a3f48;
    --ink: #f7f8f8;
    --ink-muted: #c5cbd5;
    --ink-subtle: #8a8f98;
    --primary: #5e6ad2;
    --primary-soft: #828fff;
    --success: #27a644;
    --warning: #f5a623;
    --error: #e5484d;
    --font-sans: Inter, -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--canvas);
    color: var(--ink-muted);
    font-family: var(--font-sans);
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 32px;
    border-bottom: 1px solid var(--hairline);
}

.brand {
    color: var(--ink);
    font-size: 18px;
    font-weight: 650;
}

.topbar nav {
    display: flex;
    gap: 18px;
    color: var(--ink-subtle);
    font-size: 14px;
}

.topbar a:hover {
    color: var(--ink);
}

.shell {
    width: min(1180px, calc(100vw - 48px));
    margin: 0 auto;
    padding: 56px 0;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 408px);
    gap: 48px;
    align-items: center;
    margin-bottom: 28px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--primary-soft);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0;
    color: var(--ink);
    line-height: 1.1;
}

h1 {
    max-width: 680px;
    font-size: clamp(34px, 4.1vw, 52px);
    font-weight: 650;
}

h2 {
    font-size: 20px;
    font-weight: 650;
}

.intro {
    max-width: 620px;
    margin: 16px 0 0;
    color: var(--ink-subtle);
    font-size: 16px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    align-self: center;
}

.metric,
.panel {
    border: 1px solid var(--hairline);
    background: var(--surface-1);
    border-radius: 8px;
}

.metric {
    display: flex;
    min-height: 96px;
    padding: 18px;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)),
        var(--surface-1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.metric .label {
    display: block;
    color: var(--ink-subtle);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.metric strong {
    display: block;
    color: var(--ink);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
    overflow-wrap: anywhere;
}

.metric time {
    display: grid;
    gap: 5px;
    color: var(--ink);
    line-height: 1;
}

.metric .date-day {
    font-size: 18px;
    font-weight: 650;
}

.metric .date-time {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
    white-space: nowrap;
}

.panel {
    margin-top: 16px;
    overflow: hidden;
}

.panel > p {
    margin: 12px 24px 24px;
    color: var(--ink-subtle);
}

.panel > h2 {
    padding: 24px 24px 0;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--hairline);
}

.panel-head p {
    margin: 8px 0 0;
    color: var(--ink-subtle);
    font-size: 14px;
}

.select-label {
    display: grid;
    gap: 8px;
    min-width: min(420px, 100%);
    color: var(--ink-subtle);
    font-size: 12px;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

select,
input {
    width: 100%;
    min-height: 40px;
    border: 1px solid var(--hairline-strong);
    border-radius: 6px;
    background: var(--surface-2);
    color: var(--ink);
    font: inherit;
}

select {
    padding: 0 12px;
}

input {
    max-width: 320px;
    padding: 0 12px;
}

.chart-wrap {
    padding: 24px;
}

svg {
    display: block;
    width: 100%;
    height: 360px;
    overflow: visible;
}

.axis {
    stroke: var(--hairline-strong);
    stroke-width: 1;
}

.grid-line {
    stroke: var(--hairline);
    stroke-width: 1;
}

.line {
    fill: none;
    stroke: var(--primary-soft);
    stroke-width: 2.5;
}

.dot {
    fill: var(--primary-soft);
}

.chart-label {
    fill: var(--ink-subtle);
    font-family: var(--font-mono);
    font-size: 12px;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th,
td {
    padding: 12px 24px;
    border-bottom: 1px solid var(--hairline);
    text-align: left;
}

th {
    color: var(--ink-subtle);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

td:first-child {
    color: var(--ink);
    font-family: var(--font-mono);
}

td:nth-child(2),
td:nth-child(3) {
    font-family: var(--font-mono);
    white-space: nowrap;
}

.delta-good {
    color: var(--success);
}

.delta-bad {
    color: var(--error);
}

.delta-flat {
    color: var(--ink-subtle);
}

@media (max-width: 820px) {
    .topbar,
    .panel-head,
    .hero {
        align-items: stretch;
        flex-direction: column;
    }

    .hero {
        display: block;
    }

    .summary-grid {
        grid-template-columns: 1fr;
        margin-top: 28px;
    }

    .shell {
        width: min(100% - 28px, 1180px);
        padding: 36px 0;
    }

    .panel-head {
        display: grid;
    }

    input {
        max-width: none;
    }
}