/* Matchina CDN demos — vanilla CSS.
   Linked from each demo page:
     <link rel="stylesheet" href="/cdn-demos/demo.css">
*/

:root {
    --font-sans: "Geist", system-ui, sans-serif;
    --font-mono: "Geist Mono", ui-monospace, monospace;
    --font-serif: "Source Serif 4", Georgia, serif;
    --bg: #f6f5f1;
    --panel: #ffffff;
    --panel-2: #faf9f6;
    --hairline: #e3e0d8;
    --ink: #15130f;
    --ink-2: #6a665d;
    --ink-3: #a09b91;
    --red: #b3332e;
    --yellow: #c9961a;
    --green: #2f7a3a;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0e0e0f;
        --panel: #141416;
        --panel-2: #1a1a1c;
        --hairline: #262628;
        --ink: #ececec;
        --ink-2: #8a8a90;
        --ink-3: #56565c;
        --red: #e68a8a;
        --yellow: #e6b86a;
        --green: #8fd1a3;
    }
    html { color-scheme: dark; }
}

* { box-sizing: border-box; }

/* Hide Vue/petite-vue/Alpine scopes until they mount — prevents flash
   of unbound `:attrs` and pre-mount text values. */
[v-cloak],
[x-cloak] { visibility: hidden; }

body {
    margin: 0;
    padding: 4rem 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    line-height: 1.5;
}

.container {
    max-width: 56rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

h1 em {
    font-style: italic;
    font-weight: 500;
    color: var(--ink-2);
}

.eyebrow,
.card-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.eyebrow { margin: 0 0 0.75rem; }

.subtitle {
    margin: 0.5rem 0 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-2);
    word-break: break-all;
}

.grid {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    border: 1px solid var(--hairline);
}

.card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--panel);
    text-align: center;
}

.card + .card { border-left: 1px solid var(--hairline); }

@media (max-width: 44rem) {
    .card + .card { border-left: 0; border-top: 1px solid var(--hairline); }
}

.card-eyebrow {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--hairline);
}

.card-stage {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 9rem;
}

.card footer {
    width: 100%;
    padding-top: 0.75rem;
    border-top: 1px solid var(--hairline);
}

.traffic {
    display: inline-flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--panel-2);
    border: 1px solid var(--hairline);
}

.light {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: var(--hairline);
    transition: background 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.light.red    { background: var(--red); }
.light.yellow { background: var(--yellow); }
.light.green  { background: var(--green); }

/* Data-attribute variant — server renders truth, frameworks update it.
   Used by Vue/petite-vue demos to avoid template-syntax flash. */
.light[data-color="Red"][data-active="true"]    { background: var(--red); }
.light[data-color="Yellow"][data-active="true"] { background: var(--yellow); }
.light[data-color="Green"][data-active="true"]  { background: var(--green); }

.state-line {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-2);
}

.state-line code {
    font-family: var(--font-mono);
    color: var(--ink);
    font-weight: 500;
}

.count {
    margin: 0;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.log {
    display: block;
    min-height: 1.4em;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--ink-3);
}

.row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

button {
    padding: 0.5rem 0.875rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--bg);
    background: var(--ink);
    border: 1px solid var(--ink);
    cursor: pointer;
    transition: background 120ms, color 120ms;
}

button:hover { background: transparent; color: var(--ink); }

button.secondary { background: transparent; color: var(--ink); }
button.secondary:hover { background: var(--panel-2); }

button.outline {
    background: transparent;
    color: var(--ink-2);
    border-color: var(--hairline);
}
button.outline:hover { color: var(--ink); border-color: var(--ink-2); }