/* rahas.ai launch page — rice flour on a red-oxide floor, like the film. */
:root {
  --floor: #7a2a1c; --floor-deep: #4f170e; --floor-hi: #93402b;
  --flour: #f6f1e7; --flour-dim: rgba(246, 241, 231, .72); --flour-faint: rgba(246, 241, 231, .22);
  --turmeric: #f6b524; --neela: #5fd8ff; --ink: #2a0d07;
  --head: 'Bricolage Grotesque', 'Avenir Next Condensed', system-ui, sans-serif;
  --serif: 'Instrument Serif', Georgia, serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --body: 'Bricolage Grotesque', system-ui, sans-serif;
  --gutter: clamp(16px, 4vw, 48px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; color: var(--flour); font: 400 18px/1.55 var(--body);
  background:
    radial-gradient(1200px 700px at 30% -10%, rgba(255, 196, 130, .20), transparent 60%),
    radial-gradient(900px 900px at 110% 40%, rgba(0, 0, 0, .28), transparent 60%),
    linear-gradient(180deg, var(--floor-hi) 0%, var(--floor) 35%, var(--floor-deep) 100%);
  background-color: var(--floor); min-height: 100vh; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
.grain { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .16; mix-blend-mode: multiply; z-index: 0; }
header, main, footer { position: relative; z-index: 1; }
a { color: var(--flour); text-underline-offset: 3px; text-decoration-color: var(--flour-faint); }
a:hover { text-decoration-color: var(--turmeric); }
:focus-visible { outline: 2px solid var(--turmeric); outline-offset: 3px; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px var(--gutter); max-width: 1240px; margin: 0 auto; }
.mark { display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; }
.mark .word { font: 400 34px/1 var(--serif); letter-spacing: .01em; }
.mark .dots { display: inline-flex; gap: 5px; transform: translateY(-4px); }
.mark .dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--flour); opacity: .8; }
.mark .dots i:nth-child(1) { background: var(--turmeric); opacity: 1; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font: 800 20px/1 var(--head); font-stretch: 75%; letter-spacing: .01em; color: var(--ink);
  background: var(--turmeric); border: 0; border-radius: 999px; padding: 16px 28px; text-decoration: none;
  cursor: pointer; box-shadow: 0 1px 0 rgba(255, 255, 255, .35) inset, 0 10px 30px rgba(40, 8, 2, .35);
  transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 1px 0 rgba(255, 255, 255, .35) inset, 0 14px 34px rgba(40, 8, 2, .45); }
.btn:active { transform: translateY(0); }
.btn-small { padding: 11px 18px; font-size: 16px; }
.btn-wide { width: 100%; padding: 18px 28px; font-size: 22px; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* hero */
.hero { max-width: 1240px; margin: 0 auto; padding: clamp(24px, 6vw, 72px) var(--gutter) 24px; text-align: center; }
.kicker { font: 500 13px/1.4 var(--mono); letter-spacing: .28em; text-transform: uppercase; color: var(--flour-dim); margin: 0 0 18px; }
h1 { font: 800 clamp(44px, 8.4vw, 116px)/.95 var(--head); font-stretch: 75%; letter-spacing: -.01em; margin: 0 auto; max-width: 13ch; text-wrap: balance; }
.deck { font: italic 400 clamp(22px, 3vw, 34px)/1.25 var(--serif); color: var(--flour-dim); margin: 18px auto 0; max-width: 30ch; text-wrap: balance; }
.film { position: relative; margin: clamp(28px, 5vw, 56px) auto 0; max-width: 1180px; }
.film video { display: block; width: 100%; aspect-ratio: 16 / 9; height: auto; border-radius: 14px; background: var(--floor-deep);
  box-shadow: 0 0 0 1px var(--flour-faint), 0 30px 80px rgba(30, 6, 2, .55); }
.film figcaption { font: 500 12px/1.4 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--flour-dim); margin-top: 14px; }
.sound { position: absolute; left: 18px; bottom: calc(18px + 30px); display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px/1 var(--mono); letter-spacing: .08em; color: var(--flour); background: rgba(42, 13, 7, .62);
  border: 1px solid var(--flour-faint); border-radius: 999px; padding: 11px 16px 11px 12px; cursor: pointer;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.sound svg { width: 16px; height: 16px; fill: var(--turmeric); }
.sound:hover { border-color: var(--turmeric); }
.cta-row { margin: 34px 0 0; }

/* join */
.join { max-width: 1100px; margin: clamp(48px, 9vw, 120px) auto 0; padding: 0 var(--gutter);
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: start; scroll-margin-top: 24px; }
.join h2 { font: 800 clamp(40px, 6vw, 76px)/.95 var(--head); font-stretch: 75%; margin: 0 0 18px; }
.join-text p { color: var(--flour-dim); max-width: 42ch; }
.join-text .small { font-size: 15px; }
.form { background: rgba(42, 13, 7, .32); border: 1px solid var(--flour-faint); border-radius: 18px; padding: clamp(20px, 3vw, 32px);
  display: grid; gap: 18px; }
.field { display: grid; gap: 8px; font: 500 13px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--flour-dim); }
.field input { font: 400 19px/1.3 var(--body); color: var(--flour); background: rgba(246, 241, 231, .06);
  border: 1px solid var(--flour-faint); border-radius: 10px; padding: 14px 14px; width: 100%; text-transform: none; letter-spacing: 0; }
.field textarea { font: 400 17px/1.45 var(--body); color: var(--flour); background: rgba(246, 241, 231, .06);
  border: 1px solid var(--flour-faint); border-radius: 10px; padding: 12px 14px; width: 100%; resize: vertical; text-transform: none; letter-spacing: 0; }
.field textarea:focus { border-color: var(--turmeric); outline: none; background: rgba(246, 241, 231, .1); }
.field ::placeholder { color: rgba(246, 241, 231, .38); }
.field .opt { text-transform: none; letter-spacing: 0; opacity: .7; }
.field input:focus { border-color: var(--turmeric); outline: none; background: rgba(246, 241, 231, .1); }
.field input[aria-invalid="true"] { border-color: #ff9a8a; }
.roles { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
.roles legend { font: 500 13px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--flour-dim); margin-bottom: 10px; padding: 0; }
.roles label { display: flex; align-items: center; gap: 12px; font-size: 17px; cursor: pointer;
  border: 1px solid var(--flour-faint); border-radius: 10px; padding: 12px 14px; }
.roles label:has(input:checked) { border-color: var(--turmeric); background: rgba(246, 181, 36, .08); }
.roles input { accent-color: var(--turmeric); width: 18px; height: 18px; margin: 0; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { margin: 0; min-height: 1.4em; font-size: 16px; }
.status.ok { color: var(--turmeric); font: italic 400 24px/1.3 var(--serif); }
.status.bad { color: #ffb1a3; }

.contact { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--flour-faint); }
.contact .kicker { margin-bottom: 8px; }
.contact p { margin: 4px 0; }
.contact a { font: italic 400 26px/1.3 var(--serif); color: var(--flour); }

/* footer */
.foot { max-width: 1100px; margin: clamp(64px, 10vw, 140px) auto 0; padding: 32px var(--gutter) 48px; text-align: center;
  border-top: 1px solid var(--flour-faint); }
.sign { font: italic 400 clamp(24px, 3vw, 34px)/1.2 var(--serif); margin: 0 0 12px; }
.links { font-size: 15px; color: var(--flour-dim); margin: 0; }

/* thank-you pages */
.solo { max-width: 760px; margin: 0 auto; padding: clamp(48px, 12vw, 140px) var(--gutter); text-align: center; }
.solo h1 { max-width: none; }
.solo p { color: var(--flour-dim); }

@media (max-width: 820px) {
  .join { grid-template-columns: 1fr; }
  .sound { left: 10px; bottom: calc(10px + 30px); padding: 9px 12px 9px 10px; font-size: 13px; }
  .film video { border-radius: 10px; }
  .btn-small { padding: 10px 14px; font-size: 15px; }
  body { font-size: 17px; }
}