/* ═══════════════════════════════════════════════════════════════
   LIGHTROOM TOOLS — "THE DEVELOP" (site-wide layer)
   Warm carbon, silver gelatin, amber/teal grade, safelight red
   for live states. Page-specific layers: /css/home.css,
   /css/product.css, /css/editorial.css.
   ═══════════════════════════════════════════════════════════════ */

/* ── Fonts (self-hosted variable woff2) ────────────────────── */
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/fraunces-var.woff2') format('woff2');
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/fraunces-italic-var.woff2') format('woff2');
  font-weight: 100 900; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('/assets/fonts/instrument-sans-var.woff2') format('woff2');
  font-weight: 400 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Spline Sans Mono';
  src: url('/assets/fonts/spline-mono-var.woff2') format('woff2');
  font-weight: 300 700; font-style: normal; font-display: swap;
}

/* ── Tokens ────────────────────────────────────────────────── */
:root {
  /* palette — the grade */
  --carbon:     #0D0B08;   /* unexposed paper */
  --carbon-2:   #14110C;   /* raised surface */
  --carbon-3:   #1C1812;   /* hairline surfaces */
  --silver:     #C9C2B6;   /* silver-gelatin body */
  --highlight:  #F4EFE6;   /* headline white */
  --dim:        #837B6E;   /* captions, quiet meta */
  --amber:      #E8A33D;   /* the grade's warmth */
  --amber-deep: #C77F28;
  --teal:       #6FC2B2;   /* the grade's cool */
  --safelight:  #FF5C39;   /* live indicators only */
  --line:       rgba(201 194 182 / 0.14);
  --line-soft:  rgba(201 194 182 / 0.08);

  /* type */
  --f-display: 'Fraunces', 'Georgia', serif;
  --f-body: 'Instrument Sans', system-ui, sans-serif;
  --f-mono: 'Spline Sans Mono', 'SF Mono', monospace;

  /* scale */
  --size-hero: clamp(3.4rem, 9.5vw, 8.2rem);
  --size-h2:   clamp(2.2rem, 5.2vw, 4.4rem);
  --size-h3:   clamp(2rem, 4vw, 3.4rem);
  --size-body: clamp(1rem, 1.05vw, 1.125rem);
  --size-mono: 0.72rem;

  --pad-x: clamp(1.25rem, 5vw, 5.5rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
}

:root {
  /* legacy aliases — keep until every inline <style> is retired */
  --bg: var(--carbon);              --bg-raised: var(--carbon-2);
  --bg-card: var(--carbon-2);       --border: var(--line);
  --text: var(--silver);            --text-dim: var(--dim);
  --text-bright: var(--highlight);
  --accent: var(--amber);           --accent-hover: #f0b458;
  --accent-glow: rgba(232 163 61 / 0.25);
  --blue: var(--teal);              --blue-dim: rgba(111 194 178 / 0.13);
  --font-display: var(--f-display); --font-body: var(--f-body);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Reset-ish ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html.lenis { height: auto; scroll-behavior: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  background: var(--carbon);
  color: var(--silver);
  font-family: var(--f-body);
  font-size: var(--size-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.mono {
  font-family: var(--f-mono);
  font-size: var(--size-mono);
  font-weight: 400;
  letter-spacing: 0.14em;
}
.sr-only { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }
::selection { background: var(--amber); color: var(--carbon); }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }

/* ── Scrollbar ─────────────────────────────────────────────── */
html { scrollbar-color: var(--amber-deep) var(--carbon); scrollbar-width: thin; }
::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-track { background: var(--carbon); }
::-webkit-scrollbar-thumb { background: var(--carbon-3); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }

/* ── Grain overlay ─────────────────────────────────────────── */
.grain {
  position: fixed; inset: -60px; z-index: 90; pointer-events: none;
  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='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.05;
  animation: grain-shift 0.9s steps(4) infinite;
}
@keyframes grain-shift {
  0% { transform: translate(0,0); } 25% { transform: translate(-18px,12px); }
  50% { transform: translate(14px,-16px); } 75% { transform: translate(-10px,-8px); }
  100% { transform: translate(0,0); }
}

/* ── Nav ───────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; gap: 2.4rem;
  padding: 1.1rem var(--pad-x);
  transition: transform 0.5s var(--ease-out), background 0.4s, backdrop-filter 0.4s;
}
.nav.is-scrolled {
  background: rgba(13 11 8 / 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav.is-hidden { transform: translateY(-110%); }
.nav-brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--f-mono); font-size: 0.78rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--highlight);
}
.brand-mark { width: 22px; height: 22px; color: var(--amber); }
.brand-blades { transform-origin: 50% 50%; transition: transform 0.8s var(--ease-out); }
.nav-brand:hover .brand-blades { transform: rotate(120deg); }
.nav-links { display: flex; gap: 1.9rem; margin-left: auto; align-items: center; }
.nav-links a {
  font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--silver); position: relative; padding: 0.3rem 0;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--amber); transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-links a[aria-current="page"] { color: var(--amber); }
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-cta {
  font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--carbon); background: var(--amber);
  padding: 0.55rem 1rem; border-radius: 2px;
  display: inline-flex; gap: 0.6rem; align-items: baseline;
  transition: background 0.3s;
}
.nav-cta:hover { background: var(--highlight); }
.nav-cta-price { opacity: 0.62; }
.nav-burger { display: none; }

/* nav dropdown (Guides) */
.nav-drop { position: relative; }
.nav-drop-toggle {
  font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--silver); padding: 0.3rem 0;
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.nav-drop-toggle .chev { font-size: 0.68rem; line-height: 1; transition: transform 0.3s var(--ease-out); }
.nav-drop.is-open .nav-drop-toggle .chev { transform: rotate(180deg); }
.nav-drop-menu {
  position: absolute; top: calc(100% + 0.8rem); left: 50%; transform: translateX(-50%) translateY(-6px);
  background: rgba(13 11 8 / 0.94);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: 3px;
  padding: 0.5rem 0; min-width: 12.5rem;
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s, transform 0.3s var(--ease-out), visibility 0.3s;
}
.nav-drop.is-open .nav-drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-drop-menu a { display: block; padding: 0.5rem 1.1rem; }
.nav-drop-menu a::after { display: none; }
.nav-drop-menu a:hover { color: var(--amber); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--f-mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.9rem 1.6rem; border-radius: 2px;
  transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
}
.btn:active { transform: scale(0.97); }
.btn-solid { background: var(--amber); color: var(--carbon); }
.btn-solid:hover { background: var(--highlight); }
.btn-ghost { border: 1px solid var(--line); color: var(--silver); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }

/* ── Film strip divider ────────────────────────────────────── */
.filmstrip {
  position: relative; overflow: hidden;
  border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft);
  padding: 1.05rem 0;
  background:
    repeating-linear-gradient(to right, transparent 0 14px, var(--carbon-3) 14px 24px, transparent 24px 38px) top / 100% 7px no-repeat,
    repeating-linear-gradient(to right, transparent 0 14px, var(--carbon-3) 14px 24px, transparent 24px 38px) bottom / 100% 7px no-repeat,
    var(--carbon-2);
}
.filmstrip-track { display: flex; white-space: nowrap; will-change: transform; }
.filmstrip-track span { color: var(--dim); font-size: 0.68rem; letter-spacing: 0.32em; padding-right: 2rem; }

/* ── Section scaffolding ───────────────────────────────────── */
.section-head { padding: clamp(5rem, 11vh, 8rem) var(--pad-x) 3rem; }
.eyebrow { color: var(--amber); display: block; margin-bottom: 1.3rem; }
.section-title {
  font-family: var(--f-display); font-size: var(--size-h2); font-weight: 500;
  font-variation-settings: 'opsz' 100;
  line-height: 1.04; letter-spacing: -0.01em; color: var(--highlight);
}
.section-title em {
  font-style: italic; font-weight: 380;
  font-variation-settings: 'opsz' 144, 'SOFT' 55, 'WONK' 1;
  color: var(--amber);
}

/* ── Forms: newsletter + contact ───────────────────────────── */
.newsletter-form { display: flex; gap: 0.6rem; max-width: 26rem; }
.newsletter-form input[type="email"] {
  flex: 1; background: var(--carbon-2); border: 1px solid var(--line); border-radius: 2px;
  color: var(--highlight); font-family: var(--f-mono); font-size: 0.8rem;
  padding: 0.85rem 1rem; outline: none; transition: border-color 0.3s; min-width: 0;
}
.newsletter-form input[type="email"]:focus { border-color: var(--amber); }
.newsletter-thanks { color: var(--teal); font-family: var(--f-mono); font-size: 0.74rem; letter-spacing: 0.1em; }
.nl-note { color: var(--dim); font-size: 0.56rem; margin-top: 0.9rem; }
.contact-form { display: grid; gap: 1.1rem; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.contact-form label {
  display: grid; gap: 0.45rem;
  font-family: var(--f-mono); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--dim);
}
.contact-form input, .contact-form textarea {
  background: var(--carbon-2); border: 1px solid var(--line); border-radius: 2px;
  color: var(--highlight); font-family: var(--f-body); font-size: 0.95rem;
  padding: 0.85rem 1rem; outline: none; transition: border-color 0.3s;
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--amber); }
.contact-form .btn { justify-self: start; }

/* ── Footer ────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); background: var(--carbon-2); }
.footer-edge {
  display: flex; justify-content: space-between; gap: 2rem;
  padding: 0.7rem var(--pad-x);
  color: var(--amber-deep); font-size: 0.56rem; letter-spacing: 0.3em;
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden; white-space: nowrap;
}
.footer-main {
  display: grid; grid-template-columns: 1.2fr 2fr; gap: 3rem;
  padding: 3.5rem var(--pad-x);
  max-width: 90rem; margin: 0 auto;
}
.footer-logo {
  font-family: var(--f-mono); font-size: 0.8rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--highlight); display: block; margin-bottom: 0.9rem;
}
.footer-brand p { color: var(--dim); font-size: 0.9rem; max-width: 20rem; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer-cols p { color: var(--dim); font-size: 0.6rem; letter-spacing: 0.24em; margin-bottom: 1rem; }
.footer-cols a {
  display: block; color: var(--silver); font-size: 0.88rem; padding: 0.28rem 0;
  transition: color 0.25s;
}
.footer-cols a:hover { color: var(--amber); }
.footer-legal {
  padding: 1.6rem var(--pad-x) 2rem;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
}
.footer-legal p { color: var(--dim); font-size: 0.72rem; max-width: 46rem; line-height: 1.6; }
.footer-credit { letter-spacing: 0.2em; font-size: 0.58rem !important; color: var(--amber-deep) !important; align-self: center; }

/* ── Reveal primitives ─────────────────────────────────────── */
.reveal-up { opacity: 0; transform: translateY(34px); }
.reveal-up.is-in { opacity: 1; transform: none; transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out); }
/* legacy pair — production markup still uses .reveal → .visible */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-stagger > * { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.10s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.40s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.55s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.70s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.85s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 1.00s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 1.15s; opacity: 1; transform: translateY(0); }

/* ── Responsive baseline ───────────────────────────────────── */
@media (max-width: 1080px) {
  .footer-main { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav { gap: 1rem; }
  .nav-links, .nav-cta { display: none; }
  .nav-burger {
    display: grid; gap: 5px; margin-left: auto; padding: 0.5rem;
  }
  .nav-burger span { width: 22px; height: 1.5px; background: var(--silver); transition: transform 0.35s var(--ease-out), opacity 0.3s; }
  .nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.2px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.2px) rotate(-45deg); }
  .nav-links.is-open {
    display: flex; position: fixed; inset: 0; z-index: -1;
    background: rgba(13 11 8 / 0.96); backdrop-filter: blur(12px);
    flex-direction: column; justify-content: center; align-items: center; gap: 2.2rem;
    overflow-y: auto; padding: 5rem 0 3rem;
  }
  .nav-links.is-open a { font-size: 1rem; }
  .nav-links.is-open .nav-drop-menu {
    position: static; transform: none; opacity: 1; visibility: visible;
    background: none; border: 0; backdrop-filter: none; -webkit-backdrop-filter: none;
    display: none; text-align: center;
  }
  .nav-links.is-open .nav-drop.is-open .nav-drop-menu { display: block; }
  .cf-row { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .footer-edge span:nth-child(n+4) { display: none; }
}

/* ── Reduced motion baseline ───────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .grain { animation: none; }
  .reveal-up, .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}