/* tessera-site — black-box theme (matches the A3 app icon + in-app palette). */

:root {
    --background: #0C0E11;
    --surface: #16191E;
    --text: #ECEAE4;
    --text-muted: #8A8F98;
    --text-dim: #6B7079;
    --accent: #FF6A00;
    --accent-soft: #3A2410;
    --verified: #30D158;
    --border: rgba(255, 255, 255, 0.09);
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    background: var(--background);
    color: var(--text);
    font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
    font-size: 1rem;
    line-height: 1.6;
    font-feature-settings: "ss01", "ss02";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    max-width: 640px;
    margin: 0 auto;
    padding: 4rem 1.5rem 6rem;
}

header {
    margin-bottom: 3rem;
}

.brand {
    font-size: 1.25rem;
    color: var(--text);
    font-weight: 600;
    letter-spacing: -0.02em;
    text-decoration: none;
    display: inline-flex;
    align-items: baseline;
    gap: 0.5rem;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 2rem 0 0.5rem;
    color: var(--text);
}

h1 + .subtitle {
    color: var(--text-muted);
    margin: 0 0 2.5rem;
    font-size: 1.05rem;
}

h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin: 2.5rem 0 0.75rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 1.75rem 0 0.5rem;
}

p {
    margin: 0 0 1rem;
    color: var(--text);
}

p.lead {
    color: var(--text);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

ul {
    margin: 0 0 1.5rem;
    padding-left: 1.5rem;
    color: var(--text);
}

li {
    margin-bottom: 0.4rem;
}

ul.bare {
    list-style: none;
    padding-left: 0;
}

ul.bare li::before {
    content: "— ";
    color: var(--text-dim);
}

a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    text-decoration-thickness: 1px;
}

a:hover {
    text-decoration-thickness: 2px;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 3rem 0;
}

figure {
    margin: 2.5rem 0;
}

figure img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    display: block;
    margin: 0 auto;
}

figcaption {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 0.75rem;
    text-align: center;
}

footer {
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
}

footer a:hover {
    color: var(--text);
    text-decoration: underline;
}

.meta {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.meta dt {
    display: inline;
    font-weight: 600;
}

.meta dt::after {
    content: ": ";
}

.meta dd {
    display: inline;
    margin: 0 1.5rem 0 0;
}

.verified {
    border: 1px solid rgba(48, 209, 88, 0.3);
    background: rgba(48, 209, 88, 0.07);
    border-radius: 9px;
    padding: 0.8rem 1rem;
    margin: 0 0 2rem;
    color: var(--verified);
    font-size: 0.95rem;
}

.whatsnew {
    border: 1px solid rgba(255, 106, 0, 0.3);
    background: var(--accent-soft);
    border-radius: 9px;
    padding: 0.8rem 1rem;
    margin: 0 0 2rem;
    color: var(--text);
    font-size: 0.95rem;
}

.whatsnew strong { color: var(--accent); }

.brand .mark {
    position: relative;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 0.34rem;
    background: var(--surface);
    overflow: hidden;
    flex: 0 0 auto;
    transform: translateY(0.22rem);
}

.brand .mark::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 0.34rem;
    background: var(--accent);
}

.brand .mark::after {
    content: "";
    position: absolute;
    left: 50%; top: 0.78rem;
    transform: translate(-50%, -50%);
    width: 0.5rem; height: 0.5rem;
    border: 2px solid var(--accent);
    border-radius: 50%;
}

@media (max-width: 480px) {
    main {
        padding: 2rem 1.25rem 4rem;
    }

    h1 {
        font-size: 1.6rem;
    }
}