/* =========================================================================
   ROAST & TOAST — luxury editorial streetwear
   Design system: warm neutrals, Didone display + Helvetica grotesque,
   one restrained ember accent. Heavy whitespace, typography-first.
   ========================================================================= */

:root {
  /* --- warm neutral palette (low saturation) --- */
  --bone:     oklch(0.962 0.008 83);
  --paper:    oklch(0.932 0.010 82);
  --sand:     oklch(0.886 0.014 79);
  --ash:      oklch(0.560 0.012 70);
  --espresso: oklch(0.330 0.014 58);
  --ink:      oklch(0.205 0.010 56);
  --ink-deep: oklch(0.155 0.010 56);

  /* one warm accent — set/overridden by Tweaks */
  --ember:    oklch(0.640 0.135 47);

  /* type */
  --font-display: "Bodoni Moda", "Times New Roman", serif;
  --font-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* rhythm (overridden by density tweak) */
  --section-y: clamp(7rem, 14vh, 13rem);
  --gutter: clamp(1.5rem, 5vw, 6rem);
  --maxw: 1500px;

  /* surfaces */
  --bg: var(--bone);
  --fg: var(--ink);
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0.005em;
  overflow-x: hidden;
}

::selection { background: var(--ember); color: var(--bone); }

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ---------- type primitives ---------- */
.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.34em;
  font-weight: 500;
  color: var(--ash);
  margin: 0;
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.018em;
  margin: 0;
  text-wrap: balance;
}
.display em { font-style: italic; }

/* headline-style tweak variants */
[data-headline="transitional"] {
  --font-display: "Newsreader", Georgia, serif;
}
[data-headline="transitional"] .display { letter-spacing: -0.01em; line-height: 1.02; }

[data-headline="grotesque"] .display {
  font-family: var(--font-sans);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 0.92;
}
[data-headline="grotesque"] .display em { font-style: normal; }

.body-lg { font-size: clamp(1.05rem, 1.4vw, 1.35rem); line-height: 1.55; color: var(--espresso); }
.body { color: var(--espresso); max-width: 56ch; }
.body-narrow { max-width: 42ch; }

.idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ash);
  font-weight: 500;
}

.accent { color: var(--ember); }

/* ---------- layout ---------- */
.shell { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(4rem, 8vh, 7rem); }

.rule { height: 1px; background: var(--ink); opacity: 0.14; border: 0; margin: 0; }
.rule--light { background: var(--bone); opacity: 0.18; }

.dark { background: var(--ink-deep); color: var(--bone); }
.dark .body, .dark .body-lg { color: oklch(0.80 0.01 80); }
.dark .eyebrow { color: oklch(0.66 0.01 80); }
.dark .idx { color: oklch(0.58 0.01 80); }
.dark .rule { background: var(--bone); opacity: 0.16; }

/* ---------- buttons / links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.85em;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-weight: 600;
  padding: 1.15em 2em;
  background: var(--ink);
  color: var(--bone);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background .5s cubic-bezier(.2,.7,.2,1), color .5s, transform .5s;
}
.btn:hover { background: transparent; color: var(--ink); }
.btn .arrow { transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.btn:hover .arrow { transform: translateX(4px); }

.dark .btn { background: var(--bone); color: var(--ink); border-color: var(--bone); }
.dark .btn:hover { background: transparent; color: var(--bone); }

.btn--ghost { background: transparent; color: var(--ink); border-color: color-mix(in oklab, var(--ink) 28%, transparent); }
.btn--ghost:hover { background: var(--ink); color: var(--bone); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.22em;
  font-weight: 600; padding-bottom: 4px; position: relative;
}
.link-arrow::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(1); transform-origin: left;
  transition: transform .5s cubic-bezier(.2,.7,.2,1);
}
.link-arrow:hover::after { transform: scaleX(0); transform-origin: right; }
.link-arrow .arrow { transition: transform .5s; }
.link-arrow:hover .arrow { transform: translateX(4px); }

/* ---------- image slots (editorial placeholders) ---------- */
image-slot { background: var(--paper); }
image-slot::part(frame) {
  background:
    repeating-linear-gradient(45deg, color-mix(in oklab, var(--ink) 9%, transparent) 0 1px, transparent 1px 11px),
    var(--paper);
}
image-slot[data-filled]::part(frame) { background: var(--bg); }
image-slot::part(empty) {
  color: var(--espresso);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  line-height: 1.75;
}
.dark image-slot { background: oklch(0.24 0.01 56); }
.dark image-slot::part(frame) {
  background:
    repeating-linear-gradient(45deg, color-mix(in oklab, var(--bone) 12%, transparent) 0 1px, transparent 1px 11px),
    oklch(0.24 0.01 56);
}
.dark image-slot::part(empty) { color: oklch(0.72 0.012 80); }
.shot { width: 100%; display: block; }

/* ---------- reveal animation (visible by default; .in plays a one-shot) ---------- */
.reveal { opacity: 1; }
.reveal.in { animation: revIn 1.1s cubic-bezier(.16,1,.3,1) both; }
.reveal.in[data-d="1"] { animation-delay: .08s; }
.reveal.in[data-d="2"] { animation-delay: .16s; }
.reveal.in[data-d="3"] { animation-delay: .24s; }
.reveal.in[data-d="4"] { animation-delay: .32s; }
@keyframes revIn { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* line-mask headline reveal */
.line-mask { overflow: hidden; }
.line-mask > span { display: block; }
.line-mask.in > span { animation: lineUp 1.1s cubic-bezier(.16,1,.3,1) both; }
.line-mask.in[data-d="1"] > span { animation-delay: .12s; }
.line-mask.in[data-d="2"] > span { animation-delay: .24s; }
@keyframes lineUp { from { transform: translateY(105%); } to { transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .reveal.in, .line-mask.in > span { animation: none !important; }
}

/* =========================================================================
   NAV
   ========================================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem var(--gutter);
  transition: background .5s ease, border-color .5s ease, padding .5s ease;
  border-bottom: 1px solid transparent;
  mix-blend-mode: normal;
}
.nav.scrolled {
  background: color-mix(in oklab, var(--bone) 86%, transparent);
  backdrop-filter: saturate(1.2) blur(14px);
  border-bottom-color: color-mix(in oklab, var(--ink) 12%, transparent);
  padding-block: 1rem;
}
.wordmark {
  font-family: var(--font-sans);
  font-weight: 600; font-size: 0.82rem;
  text-transform: uppercase; letter-spacing: 0.3em;
  display: inline-flex; align-items: baseline; gap: 0.05em;
}
.wordmark .amp { color: var(--ember); font-family: var(--font-display); font-weight: 500; letter-spacing: 0; }
.nav-links { display: flex; gap: clamp(1.5rem, 3vw, 3rem); align-items: center; }
.nav-link {
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.2em; font-weight: 500;
  color: var(--espresso); position: relative; padding: 0.3rem 0;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 100%;
  background: var(--ink); transform: scaleX(0); transform-origin: left;
  transition: transform .45s cubic-bezier(.2,.7,.2,1);
}
.nav-link:hover::after { transform: scaleX(1); }
.nav-cta {
  font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.2em; font-weight: 600;
  border: 1px solid color-mix(in oklab, var(--ink) 30%, transparent);
  padding: 0.7em 1.3em; transition: background .4s, color .4s;
}
.nav-cta:hover { background: var(--ink); color: var(--bone); }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; padding: 6px; }
.nav-burger span { width: 24px; height: 1.5px; background: var(--ink); display: block; transition: transform .4s, opacity .4s; }

/* =========================================================================
   HERO
   ========================================================================= */
.hero { min-height: 100svh; display: grid; grid-template-columns: 1fr; position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  min-height: 100svh;
  align-items: stretch;
}
.hero-copy {
  display: flex; flex-direction: column; justify-content: center;
  padding: 8rem var(--gutter) 3rem;
  gap: 2rem;
}
.hero-eyebrow-row { display: flex; align-items: center; gap: 1.2rem; }
.hero-eyebrow-row .line { flex: 0 0 56px; height: 1px; background: var(--ink); opacity: 0.3; }
.hero h1 { font-size: clamp(3.2rem, 7.4vw, 7.2rem); }
.hero-sub { font-size: clamp(1.05rem, 1.5vw, 1.4rem); color: var(--espresso); max-width: 38ch; line-height: 1.5; }
.hero-actions { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.hero-note { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--ash); }

.hero-media { position: relative; overflow: hidden; background: var(--paper); }
.hero-media image-slot { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-spec {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid color-mix(in oklab, var(--bone) 50%, transparent);
  background: linear-gradient(to top, color-mix(in oklab, var(--ink-deep) 78%, transparent), color-mix(in oklab, var(--ink-deep) 38%, transparent));
  backdrop-filter: blur(6px);
}
.hero-spec div { padding: 1.1rem 1.2rem; border-left: 1px solid color-mix(in oklab, var(--bone) 22%, transparent); }
.hero-spec div:first-child { border-left: 0; }
.hero-spec .k { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--bone); font-weight: 600; line-height: 1.4; }

.scroll-cue {
  position: absolute; bottom: 2rem; left: var(--gutter); z-index: 5;
  display: flex; align-items: center; gap: 0.8rem;
  font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.24em; color: var(--ash);
}
.scroll-cue .bar { width: 1px; height: 38px; background: var(--ink); opacity: 0.3; position: relative; overflow: hidden; }
.scroll-cue .bar::after { content:""; position:absolute; top:0; left:0; width:100%; height:40%; background: var(--ink); animation: cue 2.2s cubic-bezier(.7,0,.3,1) infinite; }
@keyframes cue { 0% { transform: translateY(-100%);} 60%,100%{ transform: translateY(260%);} }

/* =========================================================================
   SECTION HEADER (shared)
   ========================================================================= */
.sec-head { display: flex; gap: 1.4rem; align-items: center; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.sec-head .rule { flex: 1; }
.sec-head--center { justify-content: center; }

/* =========================================================================
   HOW IT WORKS (01)
   ========================================================================= */
.how h2 { font-size: clamp(2.4rem, 5.2vw, 4.8rem); max-width: 18ch; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.6rem, 4vw, 3.5rem); margin-top: clamp(3rem, 6vw, 5rem); }
.step { display: flex; flex-direction: column; gap: 1rem; }
.step image-slot { width: 100%; height: auto; aspect-ratio: 4/5; margin-bottom: 0.6rem; }
.step .num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ember); letter-spacing: 0.1em; }
.step h3 { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.5rem, 2.4vw, 2.05rem); line-height: 1.05; margin: 0; letter-spacing: -0.01em; }
.step p { color: var(--espresso); font-size: 0.98rem; line-height: 1.55; margin: 0; max-width: 34ch; }

/* =========================================================================
   THE CRAFT / THE WAIT (02) — dark
   ========================================================================= */
.craft { text-align: center; }
.craft .shell { max-width: 1000px; }
.craft h2 { font-size: clamp(2.6rem, 6.4vw, 6rem); margin-inline: auto; max-width: 13ch; }
.craft .body-lg { max-width: 50ch; margin: 2.2rem auto 0; }
.craft .body-lg strong { color: var(--bone); font-weight: 600; }
.craft-foot { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.18em; color: oklch(0.66 0.01 80); margin: 3rem auto 0; }

.gen { max-width: 440px; margin: 3.2rem auto 0; text-align: left; }
.gen-label { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: oklch(0.74 0.01 80); margin-bottom: 0.8rem; }
.gen-track { height: 2px; background: color-mix(in oklab, var(--bone) 18%, transparent); overflow: hidden; position: relative; }
.gen-fill { position: absolute; top: 0; left: 0; height: 100%; width: 38%; background: var(--ember); animation: gen 2.6s cubic-bezier(.65,0,.35,1) infinite; }
@keyframes gen { 0% { transform: translateX(-110%); } 100% { transform: translateX(360%); } }
@media (prefers-reduced-motion: reduce) { .gen-fill { animation: none; width: 60%; } }

/* =========================================================================
   MEANING (03)
   ========================================================================= */
.meaning h2 { font-size: clamp(2.6rem, 6vw, 5.6rem); max-width: 15ch; }
.meaning-foot { display: grid; grid-template-columns: 1fr minmax(0, 32rem); gap: 2rem; align-items: end; margin-top: clamp(2rem, 5vw, 3.5rem); }

/* =========================================================================
   FINAL CTA / CREATE
   ========================================================================= */
.cta-final { position: relative; overflow: hidden; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 6rem); align-items: center; }
.cta-media image-slot { width: 100%; height: auto; aspect-ratio: 4/5; }
.cta-copy .eyebrow { margin-bottom: 1.4rem; }
.cta-copy h2 { font-size: clamp(2.6rem, 5.2vw, 5rem); max-width: 13ch; margin-bottom: 1.6rem; }
.cta-copy .body-lg { max-width: 38ch; margin-bottom: 2.4rem; }
.cta-note { font-size: 0.72rem; letter-spacing: 0.04em; color: var(--ash); margin-top: 1.3rem; }

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer { background: var(--ink-deep); color: var(--bone); padding-block: clamp(4rem, 8vh, 7rem) 2.5rem; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.footer h3 { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 400; margin: 0 0 1.5rem; max-width: 16ch; line-height: 1.05; }
.news { display: flex; align-items: center; gap: 0; border-bottom: 1px solid color-mix(in oklab, var(--bone) 36%, transparent); max-width: 420px; }
.news input {
  flex: 1; background: transparent; border: 0; color: var(--bone); font-family: var(--font-sans);
  font-size: 0.95rem; padding: 0.9rem 0; outline: none; letter-spacing: 0.02em;
}
.news input::placeholder { color: oklch(0.66 0.01 80); }
.news button { background: none; border: 0; color: var(--bone); cursor: pointer; padding: 0.6rem 0 0.6rem 1rem; font-size: 1.1rem; }
.news.ok { border-color: var(--ember); }
.news-msg { font-size: 0.7rem; letter-spacing: 0.04em; color: var(--ember); margin-top: 0.8rem; min-height: 1em; }
.footer-cols { display: flex; gap: clamp(2rem, 5vw, 4.5rem); justify-content: flex-end; flex-wrap: wrap; }
.footer-col h5 { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.24em; color: oklch(0.62 0.01 80); margin: 0 0 1.2rem; font-weight: 600; }
.footer-col a { display: block; font-size: 0.85rem; color: oklch(0.84 0.01 80); padding: 0.35rem 0; transition: color .3s; }
.footer-col a:hover { color: var(--bone); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: clamp(3rem, 6vh, 5rem); padding-top: 1.8rem; border-top: 1px solid color-mix(in oklab, var(--bone) 16%, transparent); flex-wrap: wrap; gap: 1rem; }
.footer-bottom span { font-size: 0.66rem; letter-spacing: 0.1em; color: oklch(0.6 0.01 80); text-transform: uppercase; }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { min-height: 70svh; order: 2; }
  .hero-copy { order: 1; padding-top: 7rem; min-height: auto; }
  .cta-grid { grid-template-columns: 1fr; }
  .scroll-cue { display: none; }
  .meaning-foot { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-links.open {
    display: flex; position: fixed; inset: 0; background: var(--bone); z-index: 40;
    flex-direction: column; justify-content: center; align-items: center; gap: 1.8rem;
  }
  .nav-links.open .nav-link { font-size: 1.1rem; letter-spacing: 0.18em; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-cols { justify-content: flex-start; }
  .steps { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-spec .k { font-size: 0.54rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}