:root,
[data-theme="night"] {
    color-scheme: dark;
    --canvas: #07080c;
    --surface: #0e1118;
    --elevated: #161b26;
    --text: #edeae3;
    --muted: #8b909c;
    --brass: #c9a36a;
    --brass-strong: #e0c08a;
    --ice: #7eb8d4;
    --hairline: rgba(237, 234, 227, 0.08);
    --hairline-strong: rgba(237, 234, 227, 0.16);
    --ok: #7bae8a;
    --err: #c45c5c;
    --btn-fg: #1a1714;
}

[data-theme="day"] {
    color-scheme: light;
    --canvas: #f4efe4;
    --surface: #ebe4d4;
    --elevated: #fbf7ee;
    --text: #1a1714;
    --muted: #6b645a;
    --brass: #8a6a32;
    --brass-strong: #6e5426;
    --ice: #2f6f8a;
    --hairline: rgba(26, 23, 20, 0.12);
    --hairline-strong: rgba(26, 23, 20, 0.2);
    --ok: #3d6b4f;
    --err: #9b3d3d;
    --btn-fg: #f4efe4;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background: var(--canvas);
    color: var(--text);
}

body {
    font-family: "Instrument Sans", ui-sans-serif, system-ui, sans-serif;
    font-size: 1.05rem;
    line-height: 1.55;
    letter-spacing: -0.011em;
}

.mono {
    font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0;
}

.grain {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 40;
    opacity: 0.045;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

[data-theme="day"] .grain {
    opacity: 0.07;
    mix-blend-mode: multiply;
}

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

h1,
h2,
h3 {
    font-family: Fraunces, "Times New Roman", serif;
    font-weight: 480;
    letter-spacing: -0.03em;
    line-height: 0.92;
    margin: 0;
}

h1 {
    font-size: clamp(3.6rem, 9vw, 7.25rem);
    font-optical-sizing: auto;
    font-weight: 480;
    line-height: 0.94;
}

h2 {
    font-size: clamp(2rem, 4.4vw, 3.15rem);
}

h3 {
    font-size: 1.45rem;
    line-height: 1.15;
}

p {
    margin: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nav {
    position: sticky;
    top: 0;
    z-index: 30;
    border-bottom: 1px solid var(--hairline);
    background: color-mix(in srgb, var(--canvas) 78%, transparent);
    backdrop-filter: blur(16px);
}

.nav-inner,
.hero,
.instruments,
.playground,
.docs,
.endpoints,
.footer-inner {
    width: min(1120px, calc(100% - 2.5rem));
    margin-inline: auto;
}

.nav-inner {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    min-height: 4.1rem;
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
}

.wordmark-lockup {
    display: inline-flex;
    align-items: baseline;
    font-family: Fraunces, "Times New Roman", serif;
    font-style: italic;
    font-optical-sizing: auto;
    font-weight: 480;
    font-size: 1.28rem;
    line-height: 1;
    letter-spacing: -0.03em;
}

.wordmark-fire {
    color: var(--text);
}

.wordmark-api {
    color: var(--brass);
}

.mark {
    width: 1.35rem;
    height: 1.35rem;
    color: var(--brass);
}

.nav-links {
    display: flex;
    gap: 1.15rem;
    margin-left: auto;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
}

.nav-links a:hover,
.footer a:hover,
.endpoint-row:hover span:first-child {
    color: var(--text);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.theme-toggle {
    display: inline-flex;
    border: 1px solid var(--hairline-strong);
    background: transparent;
    color: var(--muted);
    border-radius: 999px;
    padding: 0.2rem;
    cursor: pointer;
    font: inherit;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.theme-toggle span {
    padding: 0.28rem 0.55rem;
    border-radius: 999px;
}

[data-theme="night"] .theme-toggle-night,
[data-theme="day"] .theme-toggle-day {
    background: var(--brass);
    color: var(--btn-fg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.7rem;
    padding: 0 1.15rem;
    border-radius: 6px;
    border: 1px solid transparent;
    font: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-compact {
    min-height: 2.15rem;
    padding: 0 0.85rem;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--brass);
    color: var(--btn-fg);
}

.btn-primary {
    background: var(--brass);
    color: var(--btn-fg);
}

.btn-primary:hover,
.btn-compact:hover {
    background: var(--brass-strong);
}

.btn-ghost {
    background: transparent;
    border-color: var(--hairline-strong);
    color: var(--text);
}

.btn-ghost:hover {
    border-color: var(--brass);
    color: var(--brass-strong);
}

.btn-text {
    background: none;
    border: 0;
    color: var(--brass);
    font: inherit;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 44rem;
    padding: 6.75rem 0 5.5rem;
}

.kicker,
.eyebrow {
    color: var(--brass);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin: 0;
}

.kicker .mono,
.eyebrow .mono {
    letter-spacing: 0.04em;
    text-transform: none;
}

.eyebrow {
    margin-bottom: 1.1rem;
}

.hero-rule {
    width: min(100%, 11.5rem);
    margin: 1.35rem 0;
    border: 0;
    border-top: 1px solid var(--hairline-strong);
}

.lede {
    max-width: 28.5rem;
    margin: 0;
    color: var(--text);
    font-family: Fraunces, "Times New Roman", serif;
    font-style: italic;
    font-size: clamp(1.15rem, 2.1vw, 1.4rem);
    font-weight: 400;
    line-height: 1.45;
    letter-spacing: -0.01em;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    margin-top: 1.85rem;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
}

.hero-cta a {
    color: var(--text);
    border-bottom: 1px solid var(--brass);
    padding-bottom: 0.12rem;
}

.hero-cta a:hover {
    color: var(--brass-strong);
}

.dateline {
    margin-top: 2.75rem;
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.dateline span {
    margin: 0 0.55rem;
    color: var(--brass);
}

.section-head {
    margin-bottom: 1.8rem;
}

.section-copy {
    margin-top: 0.9rem;
    max-width: 40rem;
    color: var(--muted);
}

.instruments,
.playground,
.docs,
.endpoints {
    padding-bottom: 5.5rem;
}

.instrument-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.9rem;
}

.plate {
    display: block;
    padding: 1.35rem 1.3rem 1.45rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    min-height: 100%;
}

.plate:hover {
    border-color: var(--brass);
}

.plate-path {
    color: var(--brass);
    font-size: 0.68rem;
    margin-bottom: 0.85rem;
    overflow-wrap: anywhere;
}

.plate p:last-child {
    margin-top: 0.6rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.play {
    display: grid;
    grid-template-columns: 18rem minmax(0, 1fr);
    gap: 0;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.play-tabs {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--hairline);
    background: color-mix(in srgb, var(--canvas) 55%, var(--surface));
}

.play-tab {
    appearance: none;
    text-align: left;
    border: 0;
    border-bottom: 1px solid var(--hairline);
    background: transparent;
    color: var(--muted);
    padding: 0.85rem 1rem;
    cursor: pointer;
    font: inherit;
}

.play-tab:hover,
.play-tab.is-active {
    color: var(--text);
    background: var(--elevated);
}

.play-tab.is-active {
    box-shadow: inset 2px 0 0 var(--brass);
}

.play-tab-title {
    display: block;
    font-size: 0.92rem;
    font-weight: 500;
}

.play-tab-path {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.64rem;
    color: var(--brass);
    overflow-wrap: anywhere;
}

.play-stage {
    padding: 1.15rem 1.2rem 1.3rem;
}

.play-summary {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.play-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
}

.play-pane {
    min-width: 0;
}

.pane-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.45rem;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
}

#play-body,
.play-out {
    width: 100%;
    min-height: 16.5rem;
    margin: 0;
    padding: 0.85rem;
    resize: vertical;
    border: 1px solid var(--hairline);
    border-radius: 6px;
    background: var(--elevated);
    color: var(--text);
    font-size: 0.78rem;
    line-height: 1.45;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.play-out.is-error {
    border-color: color-mix(in srgb, var(--err) 55%, var(--hairline));
}

.play-out.is-ok {
    border-color: color-mix(in srgb, var(--ok) 45%, var(--hairline));
}

.play-run {
    width: 100%;
    margin-top: 0.7rem;
}

.play-status {
    color: var(--ice);
    font-size: 0.72rem;
    letter-spacing: 0;
    text-transform: none;
}

.almanac {
    border: 1px solid var(--hairline);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.almanac-head,
.almanac [role="row"] {
    display: grid;
    grid-template-columns: 0.7fr 1.4fr 0.5fr 1fr;
    gap: 0.75rem;
    padding: 0.7rem 1.1rem;
}

.almanac-head {
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--hairline);
}

.almanac [role="row"] + [role="row"] {
    border-top: 1px solid var(--hairline);
}

.almanac-note {
    padding: 0.8rem 1.1rem 1rem;
    color: var(--muted);
    font-size: 0.72rem;
    border-top: 1px solid var(--hairline);
}

.endpoint-table {
    border-top: 1px solid var(--hairline);
}

.endpoint-row {
    display: grid;
    grid-template-columns: minmax(22rem, 0.85fr) 1fr;
    gap: 1rem;
    padding: 0.95rem 0.15rem;
    border-bottom: 1px solid var(--hairline);
    color: inherit;
}

.endpoint-row-head {
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.endpoint-row:not(.endpoint-row-head) span:first-child {
    color: var(--brass);
}

.footer {
    border-top: 1px solid var(--hairline);
    padding: 2rem 0 2.4rem;
    color: var(--muted);
    font-size: 0.88rem;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    align-items: center;
    justify-content: space-between;
}

.footer nav {
    display: flex;
    gap: 1rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.72rem;
}

.legal {
    width: min(44rem, calc(100% - 2.5rem));
    margin-inline: auto;
    padding: 4.5rem 0 5.5rem;
}

.legal h1 {
    font-family: Fraunces, "Times New Roman", serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 480;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin: 0.35rem 0 1rem;
}

.legal a:not(.btn) {
    color: var(--brass);
}

.legal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem 1.25rem;
    align-items: center;
    margin: 1.5rem 0;
}

.legal-doc {
    margin: 2rem 0 0;
    padding: 1.25rem 1.35rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    font-size: 0.78rem;
    line-height: 1.55;
}

:focus-visible {
    outline: 2px solid var(--brass);
    outline-offset: 3px;
}

::selection {
    background: color-mix(in srgb, var(--brass) 40%, transparent);
}

@media (max-width: 900px) {
    .play,
    .play-split,
    .instrument-grid,
    .endpoint-row,
    .almanac-head,
    .almanac [role="row"] {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 4.25rem 0 4rem;
    }

    .play-tabs {
        flex-direction: row;
        overflow-x: auto;
        border-right: 0;
        border-bottom: 1px solid var(--hairline);
    }

    .play-tab {
        min-width: 9.5rem;
        border-bottom: 0;
        border-right: 1px solid var(--hairline);
    }

    .play-tab.is-active {
        box-shadow: inset 0 -2px 0 var(--brass);
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}