:root {
    /* Surfaces */
    --bg-base:    oklch(98% 0.004 265);
    --bg-surface: oklch(100% 0 0);
    --bg-overlay: oklch(100% 0 0);

    /* Text */
    --text-main:  oklch(22% 0.02 265);
    --text-body:  oklch(38% 0.02 265);
    --text-muted: oklch(60% 0.01 265);
    --text-label: oklch(45% 0.02 265);

    /* Borders */
    --border-default: oklch(92% 0.006 265);
    --border-light:   oklch(96% 0.004 265);

    /* Accents — base / muted / contrasted */
    --primary-base:       oklch(60% 0.18 265);
    --primary-muted:      oklch(96% 0.03 265);
    --primary-contrasted: oklch(30% 0.12 265);

    --secondary-base:       oklch(50% 0.02 265);
    --secondary-muted:      oklch(94% 0.008 265);
    --secondary-contrasted: oklch(25% 0.03 265);

    --danger-base:        oklch(60% 0.20 25);
    --danger-muted:       oklch(96% 0.03 25);
    --danger-contrasted:  oklch(30% 0.12 25);

    --success-base:       oklch(62% 0.15 150);
    --success-muted:      oklch(96% 0.03 150);
    --success-contrasted: oklch(30% 0.10 150);

    --info-base:          oklch(65% 0.12 225);
    --info-muted:         oklch(96% 0.02 225);
    --info-contrasted:    oklch(30% 0.08 225);

    --warning-base:       oklch(72% 0.15 70);
    --warning-muted:      oklch(96% 0.03 70);
    --warning-contrasted: oklch(35% 0.10 70);

    --color-primary: var(--primary-base);
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        system-ui,
        sans-serif;
    color: var(--text-main);
    background: var(--bg-base);
    font-size: 14px;
    line-height: 1.5;
}

h1, h2, h3 {
    margin: 0 0 0.5rem 0;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }

a {
    color: var(--primary-base);
    text-decoration: none;
}
a:hover { text-decoration: underline; }

.endpoint-row {
    display: block;
    padding: 0.5rem;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-main);
}
.endpoint-row:hover {
    background: var(--bg-overlay);
    text-decoration: none;
}
.endpoint-row p9r-tag {
    min-width: 5em;
    justify-content: center;
}

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.85em;
    padding: 0.1em 0.35em;
    background: var(--bg-base);
    border-radius: 4px;
}

/* Official-providers tab — responsive grid of collapsible cards. */
.official-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
    align-content: start;
}
.official-card {
    border: 1px solid var(--border-default);
    border-radius: 8px;
    background: var(--bg-surface);
    overflow: hidden;
    align-self: start;
}
.official-card[open] { border-color: var(--primary-base); }
.official-card__summary {
    display: grid;
    grid-template-columns: 28px 1fr;
    column-gap: 12px;
    row-gap: 2px;
    padding: 14px;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: background 0.1s;
}
.official-card__summary::-webkit-details-marker { display: none; }
.official-card__summary:hover { background: var(--secondary-muted); }
.official-card[open] > .official-card__summary { background: var(--primary-muted); }
.official-card__icon {
    grid-row: 1 / span 2;
    align-self: center;
    width: 28px; height: 28px;
    color: var(--primary-base);
}
.official-card__title  { font-weight: 600; color: var(--text-main); }
.official-card__tag    { font-size: 12px; color: var(--text-muted); }
.official-card__body   { padding: 12px 14px 14px; border-top: 1px solid var(--border-light); }