/* Anvil AI Academy: workshop palette. Charcoal, ember, cream. */
:root {
  --bg: #1b1917;
  --surface: #262220;
  --surface-2: #322d2a;
  --line: #4a433e;
  --text: #f4ebdb;
  --muted: #bdb2a3;
  --accent: #ff6a1a;
  --accent-ink: #ff8a47;
  --on-accent: #1b1917;
  --focus: #ffd29e;
  --font-display: "Sora", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-text: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6efe2; --surface: #fffaf0; --surface-2: #ece2d0; --line: #cfc2ab;
    --text: #231f1c; --muted: #5b5148; --accent: #c4470a; --accent-ink: #a83a05;
    --on-accent: #fffaf0; --focus: #7a2a00; color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f6efe2; --surface: #fffaf0; --surface-2: #ece2d0; --line: #cfc2ab;
  --text: #231f1c; --muted: #5b5148; --accent: #c4470a; --accent-ink: #a83a05;
  --on-accent: #fffaf0; --focus: #7a2a00; color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-text); font-size: 1.0625rem; line-height: 1.6;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--accent-ink); text-underline-offset: 0.18em; }
a:hover { color: var(--text); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 3px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--on-accent); padding: .6rem 1rem; z-index: 50; }
.skip:focus { left: 0; }

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0 0 .6em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 6.2vw, 4.4rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 650; letter-spacing: -0.01em; }
p { margin: 0 0 1em; max-width: 68ch; }
.lede { font-size: clamp(1.15rem, 2vw, 1.4rem); color: var(--text); max-width: 56ch; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

.wrap { width: min(1120px, 100% - 2rem); margin-inline: auto; }

/* header */
.site-head { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 20; }
.head-row { display: flex; align-items: center; gap: 1rem; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--text); text-decoration: none; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; margin-right: auto; }
.brand img { width: 2rem; height: 2rem; }
.brand span { font-size: 1.05rem; }
.site-nav ul { list-style: none; display: flex; gap: .15rem; margin: 0; padding: 0; flex-wrap: wrap; }
.site-nav a { display: block; padding: .5rem .7rem; color: var(--muted); text-decoration: none; font-weight: 600; font-size: .98rem; border-radius: 4px; }
.site-nav a:hover { color: var(--text); background: var(--surface); }
.site-nav a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -3px 0 var(--accent); border-radius: 4px 4px 0 0; }
.icon-btn { background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: 4px; padding: .45rem .75rem; font: inherit; font-size: .9rem; font-weight: 600; cursor: pointer; }
.icon-btn:hover { border-color: var(--accent); }
.menu-btn { display: none; }
@media (max-width: 880px) {
  .menu-btn { display: inline-block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--bg); border-bottom: 1px solid var(--line); padding: .5rem 1rem 1rem; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; }
  .site-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); border-radius: 0 4px 4px 0; }
}

/* buttons */
.btn { display: inline-block; background: var(--accent); color: var(--on-accent); font-family: var(--font-display); font-weight: 650; font-size: 1rem; padding: .85rem 1.4rem; border-radius: 4px; border: 2px solid var(--accent); text-decoration: none; cursor: pointer; }
.btn:hover { background: transparent; color: var(--accent-ink); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent-ink); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }

/* sections */
.block { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.block + .block { border-top: 1px solid var(--line); }
.block.alt { background: var(--surface); }
.page-head { padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(1.5rem, 3vw, 2.5rem); }
.page-head h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
.crumbs { margin: 0 0 1.2rem; font-size: .92rem; color: var(--muted); }
.crumbs a { color: var(--muted); }

/* hero */
.hero { padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(2rem, 4vw, 3rem); }
.hero-grid { display: grid; gap: 2.5rem; grid-template-columns: 1.35fr 1fr; align-items: center; }
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { margin-bottom: .45em; }
.ticket { background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--accent); border-radius: 4px; padding: 1.4rem 1.5rem; }
.ticket h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.ticket dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .55rem 1.1rem; }
.ticket dt { font-weight: 700; font-family: var(--font-display); color: var(--accent-ink); }
.ticket dd { margin: 0; }
.heat { height: 6px; margin-top: clamp(2rem, 4vw, 3rem); background: linear-gradient(90deg, var(--surface-2), var(--accent)); border-radius: 3px; transform-origin: left; animation: heat-in 1.4s cubic-bezier(.2,.7,.2,1) both; }
@keyframes heat-in { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1.5rem 2rem; margin: 2.2rem 0 0; padding: 0; list-style: none; }
.stat strong { display: block; font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; color: var(--accent-ink); }
.stat span { display: block; margin-top: .4rem; color: var(--muted); font-size: .98rem; max-width: 22ch; }

/* cards */
.cards { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); margin-top: 2rem; padding: 0; list-style: none; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1.5rem; display: flex; flex-direction: column; }
.block.alt .card { background: var(--bg); }
.card h3 { margin-bottom: .3em; }
.card .line { color: var(--accent-ink); font-weight: 700; margin-bottom: .7rem; }
.card p { margin-bottom: .8rem; }
.card .meta { margin-top: auto; padding-top: .9rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; color: var(--muted); font-size: .95rem; }
.card .meta strong { color: var(--text); }
.card a.stretch { color: inherit; text-decoration: none; }
.card a.stretch::after { content: ""; position: absolute; inset: 0; }
.card.link { position: relative; }
.card.link:hover { border-color: var(--accent); }
.card.link:hover h3 { color: var(--accent-ink); }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0 0 .9rem; padding: 0; list-style: none; }
.chip { display: inline-block; border: 1px solid var(--line); border-radius: 999px; padding: .1rem .7rem; font-size: .88rem; color: var(--muted); background: transparent; }
.chip.hot { border-color: var(--accent); color: var(--accent-ink); }
.flag { display: inline-block; background: var(--surface-2); color: var(--text); border-radius: 3px; padding: .1rem .55rem; font-size: .85rem; font-weight: 700; }

/* spine timeline */
.spine { list-style: none; margin: 2.5rem 0 0; padding: 0; counter-reset: step; display: grid; grid-template-columns: repeat(7, 1fr); gap: 0 1rem; position: relative; }
.spine::before { content: ""; position: absolute; left: 0; right: 0; top: 1.15rem; height: 4px; background: linear-gradient(90deg, var(--surface-2), var(--accent)); border-radius: 2px; }
.spine li { position: relative; padding-top: 3rem; }
.spine li::before { counter-increment: step; content: counter(step); position: absolute; top: 0; left: 0; width: 2.4rem; height: 2.4rem; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; color: var(--text); background: color-mix(in srgb, var(--accent) calc(var(--heat) * 100%), var(--surface-2)); border: 3px solid var(--bg); }
.spine li:nth-child(n+5)::before { color: var(--on-accent); }
.spine h3 { font-size: 1.05rem; margin-bottom: .3em; }
.spine p { font-size: .94rem; color: var(--muted); margin: 0; }
@media (max-width: 960px) {
  .spine { grid-template-columns: 1fr; gap: 1.4rem; }
  .spine::before { left: 1.15rem; right: auto; top: 0; bottom: 0; width: 4px; height: auto; background: linear-gradient(180deg, var(--surface-2), var(--accent)); }
  .spine li { padding: 0 0 0 3.6rem; min-height: 2.4rem; }
}

/* doors */
.doors { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 2rem; }
.door { border-top: 4px solid var(--accent); background: var(--bg); padding: 1.4rem 1.4rem 1.6rem; border-radius: 0 0 6px 6px; border-left: 1px solid var(--line); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.door h3 { margin-bottom: .4em; }

.note { border: 1px solid var(--line); border-left: 6px solid var(--accent); background: var(--surface); padding: 1.3rem 1.5rem; border-radius: 4px; max-width: 70ch; }
.note p:last-child { margin-bottom: 0; }

/* tables */
.table-wrap { overflow-x: auto; margin-top: 1.6rem; border: 1px solid var(--line); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 1rem; min-width: 560px; }
caption { text-align: left; padding: .8rem 1rem; color: var(--muted); font-size: .92rem; caption-side: bottom; }
th, td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--font-display); font-size: .95rem; font-weight: 650; background: var(--surface); }
tbody tr:last-child td { border-bottom: 0; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.strip { display: grid; gap: .8rem; margin-top: 1.6rem; padding: 0; list-style: none; }
.strip li { display: grid; grid-template-columns: 7.5rem 1fr auto; gap: 1rem; align-items: baseline; padding: .9rem 1.1rem; background: var(--surface); border: 1px solid var(--line); border-radius: 4px; }
.strip time { font-family: var(--font-display); font-weight: 750; color: var(--accent-ink); }
@media (max-width: 600px) { .strip li { grid-template-columns: 1fr; gap: .2rem; } }

/* programme page */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.2rem 2rem; margin: 2rem 0 0; }
.facts div { border-top: 3px solid var(--accent); padding-top: .7rem; }
.facts dt { color: var(--muted); font-size: .95rem; }
.facts dd { margin: .15rem 0 0; font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; letter-spacing: -0.02em; }
.facts dd small { display: block; font-family: var(--font-text); font-weight: 500; font-size: .9rem; color: var(--muted); letter-spacing: 0; }
.big-outcome { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin: 1.6rem 0 0; }
.big-outcome strong { font-family: var(--font-display); font-weight: 800; font-size: clamp(3.4rem, 9vw, 6rem); line-height: .9; letter-spacing: -0.05em; color: var(--accent-ink); }
.big-outcome span { font-size: 1.2rem; max-width: 28ch; }
.weeks { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 0; border-left: 4px solid var(--accent); }
.weeks > li { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: 1.1rem 0 1.1rem 1.4rem; border-bottom: 1px solid var(--line); }
.weeks > li:last-child { border-bottom: 0; }
.weeks h3 { margin: 0; font-size: 1.1rem; }
.weeks ul { margin: 0; padding-left: 1.1rem; }
.weeks li li { margin-bottom: .35rem; }
.weeks .tag { color: var(--accent-ink); font-weight: 700; font-size: .88rem; white-space: nowrap; }
@media (max-width: 600px) { .weeks > li { grid-template-columns: 1fr; gap: .3rem; } }
.caps { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); margin-top: 1.8rem; }
.caps section { border-top: 4px solid var(--accent); padding-top: .9rem; }
.caps h3 span { color: var(--muted); font-weight: 500; font-size: .95rem; display: block; letter-spacing: 0; }
.caps h4 { font-size: .98rem; margin: 1rem 0 .3rem; color: var(--accent-ink); }
.caps ul { margin: 0; padding-left: 1.1rem; }
.caps li { margin-bottom: .3rem; }

.lists { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); margin-top: 1.6rem; }
.lists ul { padding-left: 1.2rem; margin: 0; }
.lists li { margin-bottom: .5rem; max-width: 52ch; }

/* faq */
.faq { margin-top: 1.6rem; max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding: 1rem 0; }
.faq summary { cursor: pointer; font-family: var(--font-display); font-weight: 650; font-size: 1.12rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent-ink); font-size: 1.5rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: .8rem 0 0; }

/* forms */
form.enquiry { display: grid; gap: 1rem; max-width: 620px; margin-top: 1.4rem; }
.field label { display: block; font-weight: 700; margin-bottom: .3rem; }
.field input, .field select, .field textarea { width: 100%; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: .7rem .8rem; }
.block.alt .field input, .block.alt .field select, .block.alt .field textarea { background: var(--bg); }
.field textarea { min-height: 7rem; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--muted); }
.form-status { margin: 0; padding: .8rem 1rem; border: 1px solid var(--accent); border-radius: 4px; background: var(--surface); }
.form-status[hidden] { display: none; }

/* footer */
.site-foot { border-top: 1px solid var(--line); background: var(--surface); padding: 3rem 0 2rem; margin-top: 0; }
.foot-grid { display: grid; gap: 2rem; grid-template-columns: 1.4fr 1fr 1fr; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.site-foot h2 { font-size: 1rem; margin-bottom: .6em; }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot li { margin-bottom: .3rem; }
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--text); }
.cert-line { border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 1.2rem; color: var(--muted); font-size: .92rem; }
.cert-line p { max-width: 90ch; margin-bottom: .5rem; }

@media (prefers-reduced-motion: reduce) {
  .heat { animation: none; }
  * { scroll-behavior: auto !important; }
}