/* thoxa.dev — Byzantine ground, mosaic gold, sharp type. */

:root {
    color-scheme: dark;
    --ground: #0c0912;
    --raised: #16111e;
    --ink: #f3ead6;
    --muted: #b7a78c;
    --gold: #e8b800;
    --gold-dim: #a67c2a;
    --blue: #3a4ea8;
    --line: rgba(232, 184, 0, 0.35);
    --bad: #e07070;
    --ok: #c6d48a;
    --serif: "Source Serif 4", "Iowan Old Style", Palatino, "Palatino Linotype", serif;
    --sans: "IBM Plex Sans", "Helvetica Neue", Helvetica, sans-serif;
    --display: Cinzel, "Palatino Linotype", Palatino, serif;
    --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
    --measure: 40rem;
    --page: 72rem;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--ground);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 1.125rem;
    line-height: 1.55;
    font-optical-sizing: auto;
}

::selection {
    background: var(--gold);
    color: var(--ground);
}

a {
    color: var(--gold);
    text-underline-offset: 0.18em;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
}

code {
    font-family: var(--mono);
    font-size: 0.9em;
    color: var(--gold);
}

header {
    position: sticky;
    top: 0;
    z-index: 4;
    background: color-mix(in srgb, var(--ground) 88%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(10px);
}

nav {
    max-width: var(--page);
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--ink);
    margin-right: auto;
}

.medallion {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--gold-dim);
}

.wordmark {
    font-family: var(--display);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 1.35rem;
    font-family: var(--sans);
    font-size: 0.85rem;
    font-weight: 500;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-decoration: none;
    color: var(--ground);
    background: var(--gold);
    border: 1px solid var(--gold);
    border-radius: 0;
    padding: 0.65rem 1.1rem;
    cursor: pointer;
}

.btn:hover {
    color: var(--ground);
    background: #f0cc33;
}

.btn-nav {
    padding: 0.45rem 0.9rem;
    font-size: 0.8rem;
}

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line);
}

.btn-ghost:hover {
    color: var(--gold);
    background: transparent;
}

.hero {
    background:
        linear-gradient(180deg, rgba(12, 9, 18, 0.55) 0%, rgba(12, 9, 18, 0.42) 55%, var(--ground) 100%),
        linear-gradient(90deg, rgba(12, 9, 18, 0.72) 0%, rgba(12, 9, 18, 0.28) 55%, rgba(12, 9, 18, 0.55) 100%),
        url("/hero-dome.jpg") center 20% / cover no-repeat;
    border-bottom: 1px solid var(--gold);
}

.hero-copy {
    max-width: var(--page);
    margin: 0 auto;
    padding: 1.75rem 1.5rem 2.5rem;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0 0 1.4rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gold);
}

.chips li {
    border: 1px solid var(--line);
    padding: 0.28rem 0.55rem;
    background: rgba(12, 9, 18, 0.45);
}

h1, h2, h3 {
    font-family: var(--serif);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0 0 0.75rem;
}

h1 {
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    max-width: 20ch;
    text-wrap: balance;
}

h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); }
h3 { font-size: 1.2rem; }

.lede {
    max-width: 38rem;
    color: var(--muted);
    font-size: 1.15rem;
}

.hero .lede { color: #e6d9bf; }

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.75rem 0 0;
}

.section {
    padding: 4.5rem 0;
}

.section.alt {
    background: var(--raised);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-inner {
    max-width: var(--page);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.now-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem 3rem;
    margin: 1.75rem 0 1.5rem;
}

.now-grid h3 {
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold);
}

.note {
    color: var(--muted);
    font-size: 1rem;
    max-width: 44rem;
    border-top: 1px solid var(--line);
    padding-top: 1.1rem;
}

.code-window {
    margin-top: 2rem;
    border: 1px solid var(--line);
    background: #08060c;
}

.code-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dim) transparent;
    border-bottom: 1px solid var(--line);
    background: #100c18;
}

.code-tabs::-webkit-scrollbar {
    height: 4px;
}

.code-tabs::-webkit-scrollbar-thumb {
    background: var(--gold-dim);
}

.tab {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    white-space: nowrap;
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 0.7rem 1.05rem;
    border-right: 1px solid var(--line);
    cursor: pointer;
    user-select: none;
}

.tab input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}

.tab:has(:checked) {
    color: var(--gold);
    background: rgba(232, 184, 0, 0.08);
    box-shadow: inset 0 -2px 0 var(--gold);
}

.tab:focus-within {
    outline: 2px solid var(--gold);
    outline-offset: -2px;
}

.code {
    margin: 0;
    padding: 1.35rem 1.4rem;
    background: #08060c;
    overflow-x: auto;
    font-family: var(--mono);
    font-size: 0.92rem;
    line-height: 1.65;
    display: none;
}

.code-window:has(#ex-layout:checked) .panel-layout,
.code-window:has(#ex-sums:checked) .panel-sums,
.code-window:has(#ex-clauses:checked) .panel-clauses,
.code-window:has(#ex-errors:checked) .panel-errors,
.code-window:has(#ex-ffi:checked) .panel-ffi,
.code-window:has(#ex-sql:checked) .panel-sql {
    display: block;
}

.code-line { white-space: pre; }

.c-kw { color: #c084fc; }
.c-ty { color: #7dd3fc; }
.c-st { color: #e8b800; }
.c-nu { color: #f0a07a; }
.c-com { color: #6f6558; }

.surface-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(12rem, 0.7fr);
    gap: 3rem;
    align-items: start;
}

.features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
}

.feature {
    display: grid;
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: 1rem;
    padding: 1.15rem 0;
    border-top: 1px solid var(--line);
}

.feature:last-child { border-bottom: 1px solid var(--line); }

.feature-label {
    margin: 0.15rem 0 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
}

.feature p { margin: 0; color: var(--muted); font-size: 1.02rem; }

.mosaic img {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid var(--line);
    filter: saturate(0.95) contrast(1.05);
}

.news {
    background:
        radial-gradient(1200px 400px at 20% 0%, rgba(58, 78, 168, 0.18), transparent 60%),
        var(--ground);
}

.news-inner { max-width: 38rem; }

.signup {
    display: flex;
    gap: 0;
    margin-top: 1.4rem;
    max-width: 32rem;
}

.signup input {
    flex: 1;
    min-width: 0;
    font-family: var(--sans);
    font-size: 1rem;
    color: var(--ink);
    background: var(--raised);
    border: 1px solid var(--line);
    border-right: 0;
    border-radius: 0;
    padding: 0.75rem 0.9rem;
    caret-color: var(--gold);
}

.signup input::placeholder { color: #7d715c; }

.flash {
    margin: 1rem 0 0;
    padding: 0.7rem 0.85rem;
    font-family: var(--sans);
    font-size: 0.95rem;
    border: 1px solid var(--line);
}

.flash.ok {
    color: var(--ok);
    border-color: color-mix(in srgb, var(--ok) 45%, var(--line));
}

.flash.bad {
    color: var(--bad);
    border-color: color-mix(in srgb, var(--bad) 45%, var(--line));
}

.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;
}

.panel {
    max-width: var(--page);
    margin: 0 auto;
    padding: 5rem 1.5rem;
}

footer {
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-family: var(--sans);
    font-size: 0.85rem;
}

footer p {
    max-width: var(--page);
    margin: 0 auto;
    padding: 1.2rem 1.5rem 2rem;
}

@media (max-width: 860px) {
    .nav-links { display: none; }
    .now-grid,
    .surface-wrap,
    .feature {
        grid-template-columns: 1fr;
    }
    .mosaic { display: none; }
    h1 { max-width: none; }
    .signup { flex-direction: column; }
    .signup input { border-right: 1px solid var(--line); border-bottom: 0; }
    .tab {
        font-size: 0.68rem;
        letter-spacing: 0.06em;
        padding: 0.65rem 0.8rem;
    }
    .code {
        font-size: 0.82rem;
        padding: 1rem 0.9rem;
    }
}

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