/* ==========================================================================
   Buildistry — base
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

:root {
  /* palette */
  --ivory: #FAF6F1;
  --ivory-dim: #F1EAE1;
  --charcoal: #232B32;
  --charcoal-soft: #2E3742;
  --salmon: #D63B3B;
  --salmon-dark: #B72E2E;
  --white: #FFFFFF;

  /* type */
  --font-main: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: 'Fraunces', Georgia, serif;

  /* rhythm */
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-s: 8px;
  --radius-m: 16px;
  --radius-l: 28px;
  --shadow-card: 0 20px 50px -20px rgba(35, 43, 50, 0.25);
  --shadow-soft: 0 10px 30px -12px rgba(35, 43, 50, 0.18);

  /* motion — one consistent reveal treatment site-wide */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --reveal-duration: 0.75s;
  --reveal-distance: 48px;
}

html, body { margin: 0; padding: 0; }
body {
  background: var(--ivory);
  color: var(--charcoal);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg, iframe { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4, h5 { margin: 0; font-family: var(--font-main); font-weight: 800; letter-spacing: -0.01em; color: var(--charcoal); font-optical-sizing: none; font-variation-settings: "opsz" 96; }
p { margin: 0; }

.wrap { max-width: 1180px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--charcoal); color: var(--ivory);
  padding: 0.75em 1.25em; z-index: 999; border-radius: 0 0 var(--radius-s) 0;
}
.skip-link:focus { left: 0; }

.eyebrow {
  display: block; font-family: var(--font-accent); font-style: italic; font-weight: 600;
  color: var(--salmon); font-size: 0.95rem; letter-spacing: 0.02em; margin-bottom: 0.75em;
}

.accent-word { font-family: var(--font-accent); font-style: italic; font-weight: 600; color: var(--salmon); }

.section-title { font-size: clamp(1.8rem, 3.4vw, 2.7rem); line-height: 1.15; max-width: 18ch; }
.section-lede { max-width: 56ch; margin-top: 1em; font-size: 1.05rem; color: var(--charcoal-soft); }

section { padding: clamp(4rem, 9vw, 7.5rem) 0; }

.tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  background: var(--charcoal); color: var(--ivory); padding: 0.4em 0.85em; border-radius: 999px;
}
.tag--light { background: var(--ivory); color: var(--charcoal); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  padding: 0.95em 1.7em; border-radius: 999px; font-weight: 700; font-size: 0.98rem;
  border: 2px solid transparent; transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.25s ease, color 0.25s ease;
}
.btn--accent {
  background: var(--salmon); color: var(--ivory); font-family: var(--font-accent); font-style: italic;
  box-shadow: 0 12px 30px -10px rgba(214, 59, 59, 0.55);
}
.btn--accent:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -12px rgba(214, 59, 59, 0.6); background: var(--salmon-dark); }
.btn--outline { border-color: var(--charcoal); color: var(--charcoal); }
.btn--outline:hover { background: var(--charcoal); color: var(--ivory); transform: translateY(-3px); }

/* ==========================================================================
   Scroll reveal — one direction, one style, everywhere
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateX(var(--reveal-distance));
  transition: opacity var(--reveal-duration) var(--ease), transform var(--reveal-duration) var(--ease);
  will-change: transform, opacity;
}
.reveal.in-view { opacity: 1; transform: translateX(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 200; background: rgba(250, 246, 241, 0.88);
  backdrop-filter: blur(10px); border-bottom: 1px solid rgba(35, 43, 50, 0.08);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem clamp(1.25rem, 3vw, 2rem) 1.1rem clamp(0.5rem, 1.5vw, 1rem); }
.wordmark { font-family: var(--font-accent); font-weight: 600; font-style: italic; font-size: clamp(1.7rem, 3vw, 2.3rem); color: var(--charcoal); }
.site-nav { display: flex; align-items: center; gap: 2rem; }
.site-nav a { font-weight: 600; font-size: 0.95rem; color: var(--charcoal-soft); transition: color 0.2s ease; }
.site-nav a:hover { color: var(--salmon); }
.site-nav__cta {
  background: var(--salmon); color: var(--ivory) !important; padding: 0.6em 1.3em; border-radius: 999px;
  transition: background 0.25s ease, transform 0.25s ease;
}
.site-nav__cta:hover { background: var(--salmon-dark); transform: translateY(-2px); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 0.5em; }
.nav-toggle span { width: 24px; height: 2px; background: var(--charcoal); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero__inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; padding-top: clamp(2rem, 6vw, 4rem); }
.hero__headline { font-size: clamp(2.4rem, 5vw, 3.8rem); line-height: 1.05; margin: 0.2em 0 0.5em; max-width: 14ch; }
.hero__sub { font-size: 1.15rem; color: var(--charcoal-soft); max-width: 42ch; margin-bottom: 2em; }

.hero-demo {
  background: var(--white); border-radius: var(--radius-l); overflow: hidden;
  border: 1px solid rgba(35,43,50,0.06);
  --hero-glow-a: rgba(0,0,0,0);
  --hero-glow-b: rgba(0,0,0,0);
  box-shadow: var(--shadow-card), -14px 12px 55px 2px var(--hero-glow-a), 14px -10px 55px 2px var(--hero-glow-b);
  transition: box-shadow 0.8s ease;
}
@media (prefers-reduced-motion: reduce) {
  .hero-demo { transition: box-shadow 1.2s ease; }
}
.hero-demo__chrome { display: flex; align-items: center; gap: 6px; padding: 0.9rem 1.1rem; background: var(--ivory-dim); }
.hero-demo__chrome span { width: 10px; height: 10px; border-radius: 50%; background: rgba(35,43,50,0.18); }
.hero-demo__url {
  margin-left: 0.75rem; font-size: 0.75rem; color: var(--charcoal-soft); background: rgba(255,255,255,0.6);
  padding: 0.25em 0.9em; border-radius: 999px; font-family: var(--font-main);
}
.hero-demo__body { padding: 2.4rem 2rem; min-height: 260px; display: flex; flex-direction: column; justify-content: center; transition: background 0.5s var(--ease), color 0.5s var(--ease); }
.hero-demo__eyebrow { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; opacity: 0.65; margin-bottom: 0.6em; }
.hero-demo__headline { font-size: 1.9rem; line-height: 1.15; margin: 0 0 0.5em; }
.hero-demo__text { opacity: 0.75; max-width: 32ch; margin-bottom: 1.4em; }
.hero-demo__btn { align-self: flex-start; }
.hero-demo__dots { display: flex; gap: 0.6rem; justify-content: center; padding: 1.1rem; background: var(--ivory-dim); }
.hero-demo__dots button {
  width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--charcoal); background: transparent;
  opacity: 0.35; transition: opacity 0.25s ease, transform 0.25s ease; padding: 0;
}
.hero-demo__dots button:hover { transform: scale(1.15); }
.hero-demo__dots button[aria-selected="true"] { opacity: 1; background: var(--salmon); border-color: var(--salmon); }
.hero-demo__caption { text-align: center; font-size: 0.85rem; color: var(--charcoal-soft); margin-top: 1rem; }

/* ==========================================================================
   Featured Work — spotlight card
   ========================================================================== */
.featured { background: var(--charcoal); color: var(--ivory); }
.featured .eyebrow { color: var(--salmon); }
.featured .section-title { color: var(--ivory); }

.spotlight-card {
  margin-top: 3rem; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 0; background: var(--ivory);
  border-radius: var(--radius-l); overflow: hidden; box-shadow: var(--shadow-card); color: var(--charcoal);
}
.spotlight-card__browser { display: flex; flex-direction: column; background: var(--white); }
.spotlight-card__preview { flex: 1; min-height: 420px; background: var(--ivory-dim); }
.spotlight-card__preview iframe { width: 100%; height: 100%; min-height: 420px; border: none; }
.spotlight-card__copy { padding: clamp(2rem, 4vw, 3.2rem); display: flex; flex-direction: column; gap: 1rem; justify-content: center; }
.spotlight-card__copy .tag { width: fit-content; }
.spotlight-card__copy h3 { font-family: var(--font-accent); font-style: italic; font-weight: 600; font-size: 2rem; color: var(--salmon); }
.spotlight-card__copy p { color: var(--charcoal-soft); font-size: 1.02rem; }
.spotlight-card__copy .btn { width: fit-content; margin-top: 0.5rem; }

/* ==========================================================================
   Concept Studies
   ========================================================================== */
.concept-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.4rem; margin-top: 3rem; }

.concept-card {
  text-align: left; background: var(--white); border: 1px solid rgba(35,43,50,0.08); border-radius: var(--radius-m);
  padding: 1.8rem; display: flex; flex-direction: column; gap: 0.5rem; position: relative; overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  flex: 0 1 calc((100% - 2.8rem) / 3);
}
.concept-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); }
.concept-card__label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--salmon); font-weight: 700; }
.concept-card__name { font-family: var(--font-accent); font-weight: 600; font-size: 1.4rem; margin-top: 0.15em; }
.concept-card__desc { color: var(--charcoal-soft); font-size: 0.92rem; margin-top: 0.3em; }
.concept-card__swatch { display: block; height: 8px; border-radius: 999px; margin-top: 1rem; }
.concept-card__swatch[data-swatch="futuristic"] { background: linear-gradient(90deg, #0A0E16, #B14EFF); }
.concept-card__swatch[data-swatch="minimal"] { background: linear-gradient(90deg, #FAFAF6, #C99A2E); border: 1px solid #eee; }
.concept-card__swatch[data-swatch="bold"] { background: linear-gradient(90deg, #16181B, #FFD400, #FF3D7F); }
.concept-card__swatch[data-swatch="corporate"] { background: linear-gradient(90deg, #F4F6F9, #1554D6); }
.concept-card__swatch[data-swatch="outreach"] { background: linear-gradient(90deg, #FFFFFF, #1F7A4D); }

/* ==========================================================================
   Skills Lab
   ========================================================================== */
.skills-lab { background: var(--ivory-dim); }
.lab { margin-top: 3rem; border-top: 1px solid rgba(35,43,50,0.12); }
.lab-item { border-bottom: 1px solid rgba(35,43,50,0.12); }

.lab-trigger {
  width: 100%; display: flex; align-items: center; gap: 1.2rem; background: none; border: none;
  padding: 1.6rem 0.5rem; text-align: left;
}
.lab-trigger__index { font-family: var(--font-accent); font-style: italic; color: var(--salmon); font-size: 1rem; width: 2.5rem; flex-shrink: 0; }
.lab-trigger__text { font-size: clamp(1.2rem, 2.2vw, 1.6rem); font-weight: 800; flex: 1; }
.lab-trigger__icon {
  font-size: 1.4rem; color: var(--salmon); width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--salmon); border-radius: 50%; flex-shrink: 0; transition: transform 0.35s var(--ease);
}
.lab-trigger[aria-expanded="true"] .lab-trigger__icon { transform: rotate(135deg); }

.lab-panel {
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows 0.55s var(--ease), opacity 0.5s var(--ease);
}
.lab-panel.is-open { grid-template-rows: 1fr; opacity: 1; }
.lab-panel__inner { overflow: hidden; min-height: 0; }
.lab-panel[data-panel] .lab-panel__inner { padding-right: 1rem; }
.lab-panel .lab-panel__inner > * { transform: translateX(28px); opacity: 0; transition: transform 0.5s var(--ease) 0.05s, opacity 0.5s var(--ease) 0.05s; }
.lab-panel.is-open .lab-panel__inner > * { transform: translateX(0); opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .lab-panel .lab-panel__inner > * { transition: opacity 0.3s ease; transform: none; }
}

.lab-panel__pov { font-family: var(--font-accent); font-style: italic; font-size: 1.15rem; max-width: 60ch; color: var(--charcoal); padding-bottom: 1.6rem; }
.lab-why { margin-top: 1.6rem; max-width: 60ch; background: var(--ivory); border-left: 3px solid var(--salmon); padding: 1rem 1.4rem; border-radius: 0 var(--radius-s) var(--radius-s) 0; }
.lab-why strong { color: var(--salmon); }

.lab-demo { padding-bottom: 1.8rem; }

/* -- color demo -- */
.lab-demo--color { display: grid; grid-template-columns: 200px 1fr; gap: 2rem; align-items: start; }
.color-swatches { display: flex; flex-direction: column; gap: 0.6rem; }
.color-swatch-btn {
  display: flex; align-items: center; gap: 0.6rem; background: var(--white); border: 2px solid transparent;
  padding: 0.7em 0.9em; border-radius: var(--radius-s); font-weight: 700; font-size: 0.85rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.color-swatch-btn::before {
  content: ""; width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  background: conic-gradient(var(--sw-a) 0% 60%, var(--sw-b) 60% 90%, var(--sw-c) 90% 100%);
}
.color-swatch-btn:hover { transform: translateX(4px); }
.color-swatch-btn.is-active { border-color: var(--charcoal); }

.mini-ui { border-radius: var(--radius-m); padding: 1.8rem; transition: background 0.5s var(--ease), color 0.5s var(--ease); box-shadow: var(--shadow-soft); }
.mini-ui__nav { display: flex; justify-content: space-between; font-size: 0.8rem; font-weight: 700; opacity: 0.7; margin-bottom: 1.4rem; }
.mini-ui__heading { font-family: var(--font-accent); font-size: 1.6rem; margin-bottom: 0.5rem; }
.mini-ui__heading em { font-style: italic; }
.mini-ui__text { opacity: 0.75; max-width: 34ch; margin-bottom: 1.2rem; }
.mini-ui__btn { padding: 0.75em 1.4em; border-radius: 999px; font-weight: 700; border: none; }

.mini-ui[data-palette="buildistry"] { background: #FAF6F1; color: #232B32; }
.mini-ui[data-palette="buildistry"] .mini-ui__heading em { color: #D63B3B; }
.mini-ui[data-palette="buildistry"] .mini-ui__btn { background: #D63B3B; color: #FAF6F1; }

.mini-ui[data-palette="sage"] { background: #F4F2EC; color: #2E3B2F; }
.mini-ui[data-palette="sage"] .mini-ui__heading em { color: #8FAF6B; }
.mini-ui[data-palette="sage"] .mini-ui__btn { background: #8FAF6B; color: #2E3B2F; }

.mini-ui[data-palette="ocean"] { background: #F1F6F8; color: #1B2A3A; }
.mini-ui[data-palette="ocean"] .mini-ui__heading em { color: #2F7FE0; }
.mini-ui[data-palette="ocean"] .mini-ui__btn { background: #2F7FE0; color: #F1F6F8; }

.mini-ui[data-palette="plum"] { background: #F7F2F5; color: #2B1F2A; }
.mini-ui[data-palette="plum"] .mini-ui__heading em { color: #B5477A; }
.mini-ui[data-palette="plum"] .mini-ui__btn { background: #B5477A; color: #F7F2F5; }

.lab-aside { margin-top: 1.6rem; padding: 1.2rem 1.4rem; background: rgba(35,43,50,0.04); border-radius: var(--radius-s); max-width: 60ch; }
.lab-aside__label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; color: var(--charcoal-soft); }
.rejected-swatch { display: flex; gap: 6px; margin: 0.6rem 0; }
.rejected-swatch span { width: 28px; height: 28px; border-radius: 50%; display: inline-block; }
.lab-aside p { color: var(--charcoal-soft); font-size: 0.92rem; }

/* -- type switcher -- */
.type-switcher, .layout-switcher, .style-switcher { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1.6rem; }
.type-btn {
  background: var(--white); border: 2px solid rgba(35,43,50,0.12); padding: 0.6em 1.1em; border-radius: 999px;
  font-weight: 700; font-size: 0.85rem; transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.type-btn:hover { border-color: var(--salmon); }
.type-btn.is-active { background: var(--charcoal); color: var(--ivory); border-color: var(--charcoal); }

.type-sample { background: var(--white); border-radius: var(--radius-m); padding: 2.2rem; box-shadow: var(--shadow-soft); transition: opacity 0.3s ease; }
.type-sample__heading { font-size: 1.9rem; line-height: 1.2; margin-bottom: 0.6rem; }
.type-sample__body { color: var(--charcoal-soft); max-width: 56ch; font-size: 1.02rem; }

.type-sample[data-pairing="site"] .type-sample__heading { font-family: 'Bricolage Grotesque', sans-serif; font-weight: 800; }
.type-sample[data-pairing="site"] .type-sample__heading span { font-family: var(--font-accent); font-style: italic; color: var(--salmon); }
.type-sample[data-pairing="site"] .type-sample__body { font-family: 'Bricolage Grotesque', sans-serif; }

.type-sample[data-pairing="corporate"] .type-sample__heading { font-family: 'Sora', sans-serif; font-weight: 700; }
.type-sample[data-pairing="corporate"] .type-sample__heading span { font-family: 'Playfair Display', serif; font-style: italic; color: #1554D6; }
.type-sample[data-pairing="corporate"] .type-sample__body { font-family: 'Sora', sans-serif; }

.type-sample[data-pairing="bold"] .type-sample__heading { font-family: 'Bebas Neue', sans-serif; font-weight: 400; letter-spacing: 0.01em; font-size: 2.6rem; }
.type-sample[data-pairing="bold"] .type-sample__heading span { font-family: 'Bebas Neue', sans-serif; color: #D63B3B; }
.type-sample[data-pairing="bold"] .type-sample__body { font-family: 'Manrope', sans-serif; }

.type-sample[data-pairing="modern"] .type-sample__heading { font-family: 'Space Grotesk', sans-serif; font-weight: 700; }
.type-sample[data-pairing="modern"] .type-sample__heading span { font-family: 'Space Grotesk', sans-serif; color: #2F6FED; }
.type-sample[data-pairing="modern"] .type-sample__body { font-family: 'Inter', sans-serif; }

/* -- animation demo -- */
.lab-demo--anim { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.micro-card {
  background: var(--white); border: none; border-radius: var(--radius-m); padding: 1.8rem 1.4rem; min-height: 130px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 1rem; box-shadow: var(--shadow-soft);
  position: relative; overflow: hidden; text-align: left;
}
.micro-card__label { font-weight: 800; font-size: 1rem; }
.micro-card__hint { font-size: 0.78rem; color: var(--charcoal-soft); }

.micro-card--magnetic { transition: transform 0.15s ease-out; }
.micro-card--ripple { isolation: isolate; }
.ripple-dot {
  position: absolute; border-radius: 50%; background: rgba(214,59,59,0.35); transform: scale(0); pointer-events: none;
  animation: ripple-anim 0.7s var(--ease) forwards;
}
@keyframes ripple-anim { to { transform: scale(1); opacity: 0; } }

.micro-card--morph .morph-icon {
  display: inline-block; width: 18px; height: 18px; border: 2.5px solid var(--salmon); border-radius: 50%;
  margin-right: 0.5em; vertical-align: -3px; transition: border-radius 0.4s var(--ease), transform 0.4s var(--ease);
}
.micro-card--morph:hover .morph-icon { border-radius: 4px; transform: rotate(90deg); }
.micro-card__label--morph { display: flex; align-items: center; }

.micro-card--tilt { transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.micro-card--tilt:hover { transform: translateY(-8px) rotate(-1deg); box-shadow: 0 24px 40px -16px rgba(35,43,50,0.3); }

@media (prefers-reduced-motion: reduce) {
  .micro-card--magnetic, .micro-card--tilt { transition: none; }
  .micro-card--tilt:hover { transform: none; }
}

/* -- layout demo -- */
.layout-demo { display: grid; gap: 1rem; transition: none; }
.layout-demo__block { background: var(--white); border-radius: var(--radius-m); padding: 1.6rem; box-shadow: var(--shadow-soft); }
.layout-demo__block h5 { font-family: var(--font-accent); font-style: italic; font-size: 1.15rem; margin-bottom: 0.4em; }
.layout-demo__block p { color: var(--charcoal-soft); font-size: 0.92rem; }
.layout-demo__block--lead { background: var(--charcoal); color: var(--ivory); }
.layout-demo__block--lead p { color: rgba(250,246,241,0.75); }
.layout-demo__block--lead .tag--light { margin-bottom: 0.8em; }

.layout-demo[data-layout="grid"] { grid-template-columns: repeat(3, 1fr); }
.layout-demo[data-layout="stacked"] { grid-template-columns: 1fr; }
.layout-demo[data-layout="split"] { grid-template-columns: 1.6fr 1fr; }
.layout-demo[data-layout="split"] .layout-demo__block--lead { grid-row: span 2; }

/* -- approach demo (shared style engine) -- */
.lab-demo--approach .approach-demo { padding: 2.4rem; border-radius: var(--radius-l); }
.approach-demo h4 { font-size: 1.8rem; margin: 0.6rem 0 0.6rem; line-height: 1.2; }
.approach-demo p { max-width: 48ch; opacity: 0.8; margin-bottom: 1.4rem; }

/* ==========================================================================
   Shared style engine — used by hero demo, approach demo, concept modal
   ========================================================================== */
.style-demo { --ds-radius: 20px; border-radius: var(--ds-radius); }
.ds-accent-word { font-family: var(--ds-font-accent, var(--font-accent)); color: var(--ds-accent, var(--salmon)); }
.ds-accent-btn {
  font-family: var(--ds-font-accent, var(--font-accent)); background: var(--ds-accent, var(--salmon));
  color: var(--ds-accent-text, var(--ivory)); border: none; padding: 0.8em 1.6em; border-radius: 999px;
  font-weight: 700; display: inline-flex; align-items: center; gap: 0.4em; cursor: pointer;
  transition: transform 0.3s var(--ease), filter 0.3s ease;
}
.ds-accent-btn:hover { transform: translateY(-3px); filter: brightness(1.06); }
.ds-accent-badge {
  font-family: var(--ds-font-accent, var(--font-accent)); background: var(--ds-accent, var(--salmon));
  color: var(--ds-accent-text, var(--ivory));
}

[data-style] { background: var(--ds-bg); color: var(--ds-text); font-family: var(--ds-font-main); transition: background 0.5s var(--ease), color 0.5s var(--ease); }
[data-style] h1, [data-style] h2, [data-style] h3, [data-style] h4, [data-style] h5 { color: inherit; font-family: inherit; }

[data-style="futuristic"] {
  --ds-bg: #0A0E16; --ds-surface: rgba(255,255,255,0.06); --ds-text: #EDE6FF;
  --ds-accent: #B14EFF; --ds-accent-text: #14041F;
  --ds-font-main: 'Space Grotesk', sans-serif; --ds-font-accent: 'Orbitron', sans-serif;
}
[data-style="futuristic"] .ds-accent-btn, [data-style="futuristic"] .ds-accent-badge { text-transform: uppercase; letter-spacing: 0.06em; box-shadow: 0 0 22px rgba(177,78,255,0.55); }
[data-style="futuristic"].hero-demo__body, [data-style="futuristic"].approach-demo, [data-style="futuristic"].concept-modal__panel { border: 1px solid rgba(177,78,255,0.35); }

[data-style="minimal"] {
  --ds-bg: #FAFAF6; --ds-surface: #F2F0E9; --ds-text: #16181B;
  --ds-accent: #C99A2E; --ds-accent-text: #1C1400;
  --ds-font-main: 'Inter', sans-serif; --ds-font-accent: 'Space Grotesk', sans-serif;
}
[data-style="minimal"] .ds-accent-btn { border-radius: 6px; }

[data-style="bold"] {
  --ds-bg: #16181B; --ds-surface: #232629; --ds-text: #FAFAFA;
  --ds-accent: #FFD400; --ds-accent-text: #16181B;
  --ds-font-main: 'Bebas Neue', sans-serif; --ds-font-accent: 'Manrope', sans-serif;
}
[data-style="bold"] h3, [data-style="bold"] h4, [data-style="bold"] .hero-demo__headline { letter-spacing: 0.01em; font-size: 2.1em; }
[data-style="bold"] .ds-accent-btn { font-weight: 800; text-transform: uppercase; box-shadow: 6px 6px 0 #FF3D7F; }
[data-style="bold"] .ds-accent-btn:hover { transform: translate(-2px,-2px); box-shadow: 8px 8px 0 #FF3D7F; }

[data-style="corporate"] {
  --ds-bg: #F4F6F9; --ds-surface: #FFFFFF; --ds-text: #1C2530;
  --ds-accent: #1554D6; --ds-accent-text: #FFFFFF;
  --ds-font-main: 'Sora', sans-serif; --ds-font-accent: 'Playfair Display', serif;
}
[data-style="corporate"] .ds-accent-word { font-style: italic; }
[data-style="corporate"] .ds-accent-btn { border-radius: 4px; }

[data-style="outreach"] {
  --ds-bg: #FFFFFF; --ds-surface: #F1F5F2; --ds-text: #1C2420;
  --ds-accent: #1F7A4D; --ds-accent-text: #FFFFFF;
  --ds-font-main: 'DM Sans', sans-serif; --ds-font-accent: 'Manrope', sans-serif;
}
[data-style="outreach"] .ds-accent-word { font-weight: 700; }

/* ==========================================================================
   Concept modal
   ========================================================================== */
.concept-modal {
  position: fixed; inset: 0; z-index: 500; display: flex; align-items: center; justify-content: center;
  padding: clamp(1rem, 4vw, 3rem); opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease);
}
.concept-modal.is-open { opacity: 1; pointer-events: auto; }
.concept-modal__scrim { position: absolute; inset: 0; background: rgba(15, 18, 22, 0.6); backdrop-filter: blur(4px); }
.concept-modal__panel {
  position: relative; width: min(920px, 100%); max-height: 88vh; overflow: hidden; border-radius: var(--radius-l);
  box-shadow: 0 40px 90px -30px rgba(0,0,0,0.55); transform: translateY(24px) scale(0.98); transition: transform 0.45s var(--ease);
}
.concept-modal.is-open .concept-modal__panel { transform: translateY(0) scale(1); }
.concept-modal__scroll { padding: clamp(2rem, 5vw, 3.2rem); overflow-y: auto; max-height: 88vh; }
.concept-modal__panel h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin: 0.5rem 0 0.6rem; }
.concept-modal__desc { opacity: 0.8; max-width: 60ch; margin-bottom: 2rem; }
.concept-modal__close {
  position: absolute; top: 1.4rem; right: 1.4rem; z-index: 5; padding: 0.55em 1.1em; font-size: 0.85rem;
}

.concept-demo-page { border-radius: var(--radius-m); padding: clamp(1.6rem, 3vw, 2.4rem); background: var(--ds-surface); }
.concept-demo-page__nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; font-weight: 700; }
.concept-demo-page__navbtn { padding: 0.5em 1.1em; font-size: 0.8rem; }
.concept-demo-page__headline { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: 0.5rem; }
.concept-demo-page__sub { opacity: 0.75; max-width: 50ch; margin-bottom: 1.8rem; }
.concept-demo-page__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.8rem; }
.concept-demo-page__card { background: rgba(127,127,127,0.08); border-radius: var(--radius-s); padding: 1.2rem; }
.concept-demo-page__card h5 { margin-bottom: 0.4em; font-family: inherit; }
.concept-demo-page__card p { opacity: 0.75; font-size: 0.9rem; }

/* ==========================================================================
   Process
   ========================================================================== */
.process-list { list-style: none; margin-top: 3rem; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2rem; counter-reset: step; }
.process-step {
  background: var(--white); border-radius: var(--radius-m); padding: 1.8rem 1.4rem; box-shadow: var(--shadow-soft); position: relative;
  border: 2px solid transparent;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.3s ease;
}
.process-step:hover {
  transform: translateY(-8px) rotate(-1deg);
  box-shadow: 0 24px 40px -16px rgba(35,43,50,0.3);
  border-color: var(--salmon);
}
@media (prefers-reduced-motion: reduce) {
  .process-step { transition: border-color 0.3s ease; }
  .process-step:hover { transform: none; }
}
.process-step__num { font-family: var(--font-accent); font-style: italic; color: var(--salmon); font-size: 1.6rem; display: block; margin-bottom: 0.8rem; }
.process-step h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.process-step p { color: var(--charcoal-soft); font-size: 0.9rem; }

/* ==========================================================================
   About
   ========================================================================== */
.about__inner { display: grid; grid-template-columns: 280px 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.avatar-illustration { border-radius: 50%; box-shadow: var(--shadow-card); }
.about__copy p { font-size: 1.1rem; color: var(--charcoal-soft); margin-bottom: 1.2em; }
.about__copy p:first-of-type { margin-top: 0; }
.about__copy em { font-family: var(--font-accent); font-style: italic; color: var(--salmon); }
.about__copy .section-title { margin: 0.4em 0 1em; max-width: none; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { background: var(--ivory); color: var(--charcoal); }
.contact .section-title { color: var(--charcoal); }
.contact .section-lede { color: var(--charcoal-soft); }
.contact__inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }

.contact-form { background: var(--charcoal); color: var(--ivory); border-radius: var(--radius-l); padding: clamp(1.8rem, 3vw, 2.6rem); display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; box-shadow: var(--shadow-card); }
.form-row { display: flex; flex-direction: column; gap: 0.5rem; }
.form-row--full { grid-column: 1 / -1; }
.form-row label { font-weight: 700; font-size: 0.88rem; color: var(--ivory); }
.optional { font-weight: 400; color: rgba(250,246,241,0.6); }
.form-row input, .form-row select, .form-row textarea {
  border: 2px solid rgba(35,43,50,0.14); border-radius: var(--radius-s); padding: 0.75em 0.9em; font-family: inherit;
  font-size: 0.95rem; background: var(--white); color: var(--charcoal); transition: border-color 0.25s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--salmon); }
.contact-form .btn { grid-column: 1 / -1; width: fit-content; margin-top: 0.5rem; }
.hp-field { position: absolute; left: -9999px; }
.form-status { grid-column: 1 / -1; font-weight: 700; font-size: 0.9rem; min-height: 1.2em; }
.form-status.is-success { color: #2E9C4F; }
.form-status.is-error { color: var(--salmon); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--charcoal); color: rgba(250,246,241,0.65); padding: 2rem 0; border-top: 1px solid rgba(250,246,241,0.1); }
.site-footer__inner { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; }
.wordmark--footer { font-size: 1.1rem; color: var(--ivory); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1000px) {
  .hero__inner { grid-template-columns: 1fr; }
  .spotlight-card { grid-template-columns: 1fr; }
  .spotlight-card__preview, .spotlight-card__preview iframe { min-height: 320px; }
  .concept-card { flex-basis: calc((100% - 1.4rem) / 2); }
  .lab-demo--anim { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(3, 1fr); }
  .about__inner { grid-template-columns: 200px 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-nav {
    position: fixed; top: 68px; left: 0; right: 0; background: var(--ivory); flex-direction: column; align-items: flex-start;
    padding: 1.5rem var(--gutter) 2rem; gap: 1.2rem; transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease; border-bottom: 1px solid rgba(35,43,50,0.08);
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle { display: flex; }
  .site-nav__cta { margin-top: 0.5rem; }

  .concept-card { flex-basis: 100%; }
  .lab-demo--color { grid-template-columns: 1fr; }
  .lab-demo--anim { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .about__inner { grid-template-columns: 1fr; text-align: center; }
  .about__avatar { justify-self: center; max-width: 200px; margin: 0 auto; }
  .contact-form { grid-template-columns: 1fr; }
  .layout-demo[data-layout="split"] { grid-template-columns: 1fr; }
  .layout-demo[data-layout="split"] .layout-demo__block--lead { grid-row: auto; }
  section { padding: 3.5rem 0; }
  .reveal { transform: translateX(24px); }
}