/* Palette sampled from the 2022 Cactus Cup program artwork itself:
   teal #207070 dominant accent, desert orange #F06010 highlight, near-black ink. */
:root {
    --teal:        #1A6B6B;
    --teal-bright: #2A9D9D;
    --orange:      #D9550C;
    --bg:          #F4F2EE;
    --surface:     #FFFFFF;
    --border:      #DAD5CC;
    --text:        #16201F;
    --text-dim:    #5A6563;
    --accent:      var(--teal);
    --accent-text: #FFFFFF;
    --shadow:      0 1px 3px rgba(22, 32, 31, 0.12);
}

:root:not([data-theme="light"]) {
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg:          #0B1110;
        --surface:     #141C1B;
        --border:      #273533;
        --text:        #E8EDEC;
        --text-dim:    #93A3A0;
        --accent:      var(--teal-bright);
        --accent-text: #061010;
        --shadow:      0 1px 3px rgba(0, 0, 0, 0.5);
        color-scheme:  dark;
    }
}

:root[data-theme="dark"] {
    --bg:          #0B1110;
    --surface:     #141C1B;
    --border:      #273533;
    --text:        #E8EDEC;
    --text-dim:    #93A3A0;
    --accent:      var(--teal-bright);
    --accent-text: #061010;
    --shadow:      0 1px 3px rgba(0, 0, 0, 0.5);
    color-scheme:  dark;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header {
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.bar {
    max-width: 1100px;
    margin: 0 auto;
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.bar h1 {
    margin: 0;
    font-size: 1.15rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.bar h1 span { color: var(--accent); }

.spacer { flex: 1; }

.theme-toggle {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-dim);
    border-radius: 999px;
    padding: 6px 14px;
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 20px 64px;
}

.lede {
    color: var(--text-dim);
    margin: 0 0 28px;
    max-width: 62ch;
}

.program {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 26px;
}

.cover {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    background: #000;
    border-bottom: 1px solid var(--border);
}

.program-body { padding: 20px; }

.program-body h2 { margin: 0 0 4px; font-size: 1.3rem; }

.meta {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin: 0 0 16px;
}

.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.btn {
    display: inline-block;
    background: var(--accent);
    color: var(--accent-text);
    text-decoration: none;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: 7px;
    border: 1px solid transparent;
}

.btn:hover { filter: brightness(1.08); }

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

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

.pages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.pages a { text-decoration: none; color: var(--text-dim); font-size: 0.75rem; }

.pages img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 5px;
    border: 1px solid var(--border);
    background: #000;
}

.pages a:hover { color: var(--accent); }

.endpoints {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
}

.endpoints h2 { margin: 0 0 12px; font-size: 1rem; text-transform: uppercase; letter-spacing: 0.04em; }

.endpoints table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }

.endpoints td { padding: 7px 10px 7px 0; border-bottom: 1px solid var(--border); vertical-align: top; }

.endpoints tr:last-child td { border-bottom: none; }

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.88em;
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
}

.scroll-x { overflow-x: auto; }

footer {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px 48px;
    color: var(--text-dim);
    font-size: 0.82rem;
}