/* Firelit marketing site. Editorial, warm-dark, a single ember of colour. */
:root {
  --ink: #131010;
  --ink-2: #1b1614;
  --ink-3: #241d1a;
  --cream: #f2e9da;
  --cream-dim: #b7aa97;
  --cream-faint: #7d7264;
  --ember: #e4572e;
  --amber: #f2a541;
  --line: rgba(242, 233, 218, 0.12);
  --line-strong: rgba(242, 233, 218, 0.28);
  --radius: 18px;
  --max: 1160px;
  --gutter: clamp(20px, 5vw, 64px);
  --serif: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
/* The ember glow bleeds past the right edge by design; clip it so no viewport can scroll sideways. */
html, body { overflow-x: hidden; overflow-x: clip; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--serif);
  font-weight: 350;
  font-size: clamp(17px, 1.05vw + 12px, 19px);
  line-height: 1.55;
  font-variation-settings: 'opsz' 18, 'SOFT' 30, 'WONK' 0;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 400; }
::selection { background: var(--ember); color: var(--ink); }

/* Atmosphere */
.grain {
  position: fixed; inset: -50%; z-index: 0; pointer-events: none; opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.6s steps(6) infinite;
}
@keyframes grain {
  0% { transform: translate(0,0) } 20% { transform: translate(-2%,1%) } 40% { transform: translate(1%,-2%) }
  60% { transform: translate(-1%,2%) } 80% { transform: translate(2%,1%) } 100% { transform: translate(0,0) }
}
/* .glow clips the ember so it can bleed off the right edge without widening the page on phones. */
.glow { position: absolute; top: 0; left: 0; right: 0; height: 140vh; overflow: hidden; pointer-events: none; z-index: 0; }
.ember {
  position: absolute;
  top: -12vh; right: -8vw; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background:
    radial-gradient(closest-side, rgba(242,165,65,.30), rgba(228,87,46,.16) 40%, rgba(228,87,46,0) 72%);
  filter: blur(18px);
  animation: flicker 7s ease-in-out infinite alternate;
}
@keyframes flicker {
  0%   { transform: scale(1) translate(0,0); opacity: .85 }
  35%  { transform: scale(1.04) translate(-1%,1%); opacity: 1 }
  70%  { transform: scale(.98) translate(1%,-1%); opacity: .8 }
  100% { transform: scale(1.02) translate(0,1%); opacity: .95 }
}

/* Type */
.mono { font-family: var(--mono); font-size: 12.5px; letter-spacing: .08em; text-transform: uppercase; font-weight: 500; }
.muted { color: var(--cream-dim); }
.dot { color: var(--ember); padding: 0 .5em; }
.eyebrow { color: var(--amber); margin-bottom: 18px; }
.display {
  font-size: clamp(2.6rem, 6.2vw, 5.6rem);
  line-height: .98;
  letter-spacing: -.02em;
  font-weight: 350;
  font-variation-settings: 'opsz' 144, 'SOFT' 60, 'WONK' 1;
}
.display em, .cta .display em { font-style: italic; font-weight: 300; color: var(--amber); }
.display-sm {
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -.012em;
  font-variation-settings: 'opsz' 72, 'SOFT' 50, 'WONK' 1;
}
.lede { font-size: clamp(1.05rem, 1.2vw, 1.25rem); color: var(--cream-dim); max-width: 34em; }
.lede em { color: var(--cream); }

/* Layout */
.nav, main > *, .foot { position: relative; z-index: 1; }
.nav {
  max-width: var(--max); margin: 0 auto; padding: 28px var(--gutter) 0;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
}
.nav .btn { justify-self: end; }
.wordmark {
  font-style: italic; font-weight: 400; font-size: 1.75rem; letter-spacing: -.01em;
  font-variation-settings: 'opsz' 60, 'SOFT' 80, 'WONK' 1;
}
.wordmark::after { content: '.'; color: var(--ember); }
.wordmark.small { font-size: 1.35rem; }

.hero {
  max-width: var(--max); margin: 0 auto; padding: clamp(80px, 16vh, 190px) var(--gutter) 56px;
}
.hero .display { font-size: clamp(2.6rem, 6.4vw, 6.2rem); margin-bottom: 8px; }
.hero .line { white-space: nowrap; }
.rotator { display: inline-block; min-width: .3em; position: relative; }
.rotator.has-caret::after {
  content: ''; position: absolute; right: -.08em; top: .12em; bottom: .06em; width: .045em; min-width: 3px;
  background: var(--amber); border-radius: 2px; animation: caret 1.05s steps(1) infinite;
}
.rotator.typing::after { animation: none; opacity: 1; }
@keyframes caret { 0%, 55% { opacity: 1 } 56%, 100% { opacity: 0 } }
.hero-more {
  display: inline-block; margin-top: 32px; padding: 8px 0; font-style: italic; color: var(--cream-dim); border-bottom: 1px solid var(--line-strong);
  transition: color .2s, border-color .2s;
}
.hero-more:hover { color: var(--amber); border-color: var(--amber); }

.signup {
  max-width: 560px; margin: 0 auto; padding: clamp(96px, 12vh, 150px) var(--gutter) 0; text-align: center;
  display: grid; justify-items: center; gap: 14px;
}
.signup .btn { margin-top: 10px; }

.principles {
  max-width: var(--max); margin: 0 auto; padding: clamp(72px, 10vh, 128px) var(--gutter) 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px);
}
.principle h2 {
  font-size: clamp(1.5rem, 2.1vw, 1.95rem); line-height: 1.12; margin: 14px 0 16px; letter-spacing: -.01em;
  font-variation-settings: 'opsz' 60, 'SOFT' 50, 'WONK' 1;
}
.principle p:last-child { color: var(--cream-dim); }
.num { color: var(--ember); }
.principle:nth-child(2) { transform: translateY(40px); }
.principle:nth-child(3) { transform: translateY(80px); }

.threads { max-width: var(--max); margin: 0 auto; padding: clamp(110px, 14vh, 180px) var(--gutter) 0; }
.intro-card {
  position: relative; max-width: 720px; margin-left: auto; padding: clamp(26px, 3vw, 40px);
  background: linear-gradient(160deg, var(--ink-3), var(--ink-2)); border: 1px solid var(--line-strong); border-radius: var(--radius);
  box-shadow: 0 40px 80px -40px rgba(228,87,46,.35), 0 1px 0 rgba(242,233,218,.06) inset;
}
.intro-card::before {
  content: ''; position: absolute; left: -1px; top: 28px; bottom: 28px; width: 3px; background: linear-gradient(var(--amber), var(--ember)); border-radius: 2px;
}
.intro-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.intro-narrative { font-size: clamp(1.15rem, 1.5vw, 1.45rem); line-height: 1.4; font-variation-settings: 'opsz' 36, 'SOFT' 50, 'WONK' 1; }
.chips { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li {
  font-size: .95rem; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--cream);
  background: rgba(242,233,218,.04);
}
.chips li::before { content: '—'; color: var(--ember); margin-right: 8px; }

.steps { max-width: var(--max); margin: 0 auto; padding: clamp(110px, 14vh, 180px) var(--gutter) 0; }
.steps ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 28px; position: relative; }
.steps ol::before { content: ''; position: absolute; left: 0; right: 0; top: 9px; height: 1px; background: var(--line); }
.steps li { position: relative; padding-top: 34px; }
.steps li::before {
  content: ''; position: absolute; top: 4px; left: 0; width: 11px; height: 11px; border-radius: 50%;
  background: var(--ink); border: 1px solid var(--ember); box-shadow: 0 0 0 4px var(--ink);
}
.steps li .num { position: absolute; top: -1px; left: 22px; }
.steps h3 { font-size: 1.25rem; line-height: 1.2; margin-bottom: 10px; letter-spacing: -.005em; font-variation-settings: 'opsz' 40, 'SOFT' 50, 'WONK' 1; }
.steps li p:last-child { color: var(--cream-dim); font-size: .98rem; }
.steps em { font-style: italic; color: var(--cream); }

.privacy {
  max-width: var(--max); margin: clamp(110px, 14vh, 180px) auto 0; padding: clamp(56px, 7vw, 96px) var(--gutter);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px);
}
.privacy-head { position: sticky; top: 40px; align-self: start; }
.commitments { list-style: none; margin: 0; padding: 0; }
.commitments li { padding: 26px 0; border-top: 1px solid var(--line); }
.commitments li:first-child { border-top: 0; padding-top: 0; }
.commitments h3 { font-size: 1.3rem; margin-bottom: 8px; font-variation-settings: 'opsz' 40, 'SOFT' 50, 'WONK' 1; }
.commitments p { color: var(--cream-dim); }

.cta {
  max-width: var(--max); margin: 0 auto; padding: clamp(96px, 14vh, 160px) var(--gutter) clamp(72px, 10vh, 120px);
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(320px, 4fr); gap: clamp(32px, 5vw, 88px); align-items: center;
}
.cta .display { margin-bottom: 26px; }
.cta-action { justify-self: end; }
@media (max-width: 960px) { .cta-action { justify-self: start; } }

/* Dialog */
.join-dialog {
  width: min(440px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--line-strong); border-radius: var(--radius);
  background: linear-gradient(160deg, var(--ink-3), var(--ink-2)); color: var(--cream);
  box-shadow: 0 60px 120px -40px rgba(228,87,46,.45), 0 1px 0 rgba(242,233,218,.06) inset;
}
.join-dialog::backdrop { background: rgba(10,8,8,.7); backdrop-filter: blur(6px); }
.join-dialog[open] { animation: dialog-in .28s cubic-bezier(.2,.7,.2,1); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(10px) scale(.985); } }
.join-dialog .join { position: relative; padding: clamp(22px, 2.4vw, 32px); display: grid; gap: 16px; }
.dialog-close {
  position: absolute; top: 10px; right: 10px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  background: transparent; color: var(--cream-dim); font: inherit; font-size: 22px; line-height: 1; cursor: pointer;
}
.dialog-close:hover { color: var(--cream); border-color: var(--line-strong); }
.dialog-close:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

.foot {
  max-width: var(--max); margin: 0 auto; padding: 36px var(--gutter) 56px; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: auto 1fr; gap: 12px 32px; align-items: baseline;
}
.foot .mono { text-transform: none; letter-spacing: .02em; }
.foot a { display: inline-block; padding: 12px 0; }
.foot a:hover { color: var(--amber); }
.noscript { text-align: center; padding: 16px; color: var(--amber); }

/* Card + form */
.card {
  background: linear-gradient(160deg, var(--ink-3), var(--ink-2));
  border: 1px solid var(--line-strong); border-radius: var(--radius); padding: clamp(22px, 2.4vw, 32px);
  box-shadow: 0 50px 100px -50px rgba(228,87,46,.45), 0 1px 0 rgba(242,233,218,.06) inset;
  display: grid; gap: 16px;
}
.card-label { color: var(--amber); }
.join label { display: grid; gap: 8px; }
.join label > span { font-size: .95rem; color: var(--cream-dim); }
.join input {
  width: 100%; font: inherit; font-size: 1.05rem; color: var(--cream); background: rgba(19,16,16,.6);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: 13px 14px; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.join input::placeholder { color: var(--cream-faint); }
.join input:focus { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(242,165,65,.18); }
.join input[aria-invalid="true"] { border-color: var(--ember); }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: .9rem; }
.form-status { font-size: .98rem; }
.form-status:empty { display: none; }
.form-status.ok { color: var(--amber); }
.form-status.err { color: #ff9b7a; }
.join.done label, .join.done .btn, .join.done .form-note { display: none; }
.join.done .form-status { font-size: 1.15rem; line-height: 1.4; }
.join.done .form-status::before { content: '✦ '; color: var(--ember); }

.btn {
  display: inline-grid; place-items: center; grid-template-areas: 'a'; font: inherit; font-size: 1rem; cursor: pointer;
  padding: 13px 20px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--cream); background: transparent;
  transition: transform .15s ease, background .2s, border-color .2s, color .2s;
}
.btn > span { grid-area: a; }
.btn:hover { transform: translateY(-1px); border-color: var(--amber); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }
.btn-ember { background: var(--ember); border-color: var(--ember); color: var(--ink); font-weight: 500; }
.btn-ember:hover { background: var(--amber); border-color: var(--amber); }
.btn-busy { opacity: 0; }
.btn[aria-busy="true"] .btn-text { opacity: 0; }
.btn[aria-busy="true"] .btn-busy { opacity: 1; }
.btn[aria-busy="true"] { pointer-events: none; }

/* Motion */
.reveal { opacity: 0; transform: translateY(14px); animation: rise .9s cubic-bezier(.2,.7,.2,1) forwards; animation-delay: var(--d, 0ms); }
@keyframes rise { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .join-dialog[open] { animation: none; }
  .grain, .ember { animation: none; }
  .reveal { opacity: 1; transform: none; animation: none; }
  .rotator.has-caret::after { animation: none; }
  .principle:nth-child(2), .principle:nth-child(3) { transform: none; }
  html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 960px) {
  .cta, .privacy { grid-template-columns: 1fr; }
  .hero .line { white-space: normal; }
  .privacy-head { position: static; }
  .principles { grid-template-columns: 1fr; gap: 44px; }
  .principle:nth-child(2), .principle:nth-child(3) { transform: none; }
  .steps ol { grid-template-columns: 1fr; gap: 22px; padding-left: 26px; }
  .steps ol::before { left: 5px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
  .steps li { padding-top: 0; padding-left: 12px; }
  .steps li::before { left: -26px; top: 6px; }
  .steps li .num { position: static; display: block; margin-bottom: 6px; }
  .intro-card { margin-left: 0; }
  .ember { width: 120vw; height: 120vw; right: -40vw; top: -20vh; }
}
@media (max-width: 640px) {
  .nav .btn { padding: 10px 14px; font-size: .92rem; }
  .foot { grid-template-columns: 1fr; }
}