/* =========================================================
   Remco & Isaac × Eqology — landing page
   ========================================================= */

:root {
  --ink: #0a0b0c;
  --ink-2: #111315;
  --ink-3: #181b1e;
  --bone: #efe9df;
  --bone-2: #e4ddd0;
  --paper: #f6f2ea;
  --muted: #9a968e;
  --muted-dark: #5d5a54;
  --line: rgba(239, 233, 223, .12);
  --line-dark: rgba(10, 11, 12, .12);
  --ice: #a9d6e3;
  --ice-deep: #2b5866;
  --amber: #e9a23b;
  --amber-hot: #f3b44f;
  --lemon: #f2d36b;
  --red: #c8473a;

  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  --gutter: clamp(16px, 4vw, 48px);
  --maxw: 1320px;
  --radius: 18px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  --nav-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  font-size: clamp(16px, 1.05vw, 18px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* film grain */
body::after {
  content: "";
  position: fixed; inset: -50%;
  pointer-events: none; z-index: 100;
  opacity: .055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); }
  20% { transform: translate(-3%,2%); }
  40% { transform: translate(2%,-3%); }
  60% { transform: translate(-2%,-1%); }
  80% { transform: translate(3%,3%); }
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
strong { font-weight: 600; color: #fff; }
em { font-style: italic; }
::selection { background: var(--amber); color: var(--ink); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: .78em; letter-spacing: .02em; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 200; background: var(--amber); color: var(--ink); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

/* ---------- type ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.4rem;
  display: flex; align-items: center; gap: .6em; flex-wrap: wrap;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 12px var(--amber); }
.eyebrow .sep { opacity: .4; }

.h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6vw, 5.6rem);
  line-height: .95;
  letter-spacing: -.02em;
  margin: 0 0 1.5rem;
}
.h2 em, .h3 em { color: var(--muted); }
.h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 3.4vw, 3rem); line-height: 1; margin: 0 0 1rem; }
.amber { color: var(--amber) !important; }

.section { padding: clamp(96px, 14vw, 180px) 0; position: relative; }
.section__head { max-width: 880px; margin-bottom: clamp(48px, 7vw, 88px); }
.section__head--row { max-width: none; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: end; }
.section__lead { font-size: 1.12em; color: var(--muted); max-width: 54ch; margin: 0; }
.section__lead strong { color: var(--bone); }

/* ---------- buttons ---------- */
.btn {
  --bg: transparent; --fg: var(--bone); --bd: var(--line);
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  padding: .95em 1.5em;
  border-radius: 999px;
  border: 1px solid var(--bd);
  background: var(--bg); color: var(--fg);
  font: 600 15px/1 var(--sans);
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .4s var(--ease), background .3s, color .3s, border-color .3s, box-shadow .3s;
  will-change: transform;
  white-space: nowrap;
}
.btn .arr { display: inline-block; transition: transform .35s var(--ease); }
.btn:hover .arr { transform: translate(3px, -3px); }
.btn--amber { --bg: var(--amber); --fg: var(--ink); --bd: var(--amber); box-shadow: 0 10px 40px -10px rgba(233, 162, 59, .55); }
.btn--amber:hover { --bg: var(--amber-hot); box-shadow: 0 14px 50px -8px rgba(233, 162, 59, .7); }
.btn--ghost:hover { --bd: var(--bone); background: rgba(239, 233, 223, .06); }
.btn--sm { padding: .7em 1.15em; font-size: 14px; }
.btn--lg { padding: 1.1em 1.7em; font-size: 16px; }
.btn--xl { padding: 1.25em 2.2em; font-size: clamp(16px, 1.6vw, 20px); }
.btn--block { width: 100%; }

.link { color: var(--amber); text-decoration: none; font-weight: 600; border-bottom: 1px solid currentColor; padding-bottom: 2px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 0 var(--gutter);
  transition: background .4s, backdrop-filter .4s, border-color .4s, transform .5s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 11, 12, .72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-color: var(--line);
}
.nav.is-hidden { transform: translateY(-100%); }
.nav__brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav__mono {
  font-family: var(--serif); font-size: 21px; line-height: 1; white-space: nowrap;
  width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; letter-spacing: -.04em;
}
.nav__mono i { font-style: normal; color: var(--amber); font-size: .7em; margin: 0 1px; }
.nav__name { font-weight: 600; font-size: 15px; }
.nav__name em { font-style: normal; color: var(--muted); font-weight: 500; }
.nav__links { display: flex; gap: 30px; }
.nav__actions { display: flex; align-items: center; gap: 14px; }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang a { font: 500 12px/1 var(--mono); letter-spacing: .06em; text-decoration: none; color: var(--muted); padding: 7px 9px; border-radius: 999px; transition: color .2s, background .2s; }
.lang a:hover { color: var(--bone); }
.lang a.is-current { background: var(--bone); color: var(--ink); }
.nav__links a { text-decoration: none; font-size: 14px; color: var(--muted); transition: color .25s; position: relative; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -6px; height: 1px; background: var(--amber); transition: right .35s var(--ease); }
.nav__links a:hover, .nav__links a.is-active { color: var(--bone); }
.nav__links a:hover::after, .nav__links a.is-active::after { right: 0; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--nav-h) + 40px) 0 28px;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; z-index: -2; }
.hero__bg img { width: 100%; height: 115%; object-fit: cover; object-position: center 40%; filter: saturate(.6) brightness(.55); transform: scale(1.08); animation: heroZoom 2.8s var(--ease) forwards; }
@keyframes heroZoom { to { transform: scale(1); } }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(10,11,12,.94) 0%, rgba(10,11,12,.7) 45%, rgba(10,11,12,.25) 100%),
    linear-gradient(0deg, var(--ink) 0%, transparent 30%),
    linear-gradient(180deg, rgba(10,11,12,.6) 0%, transparent 25%);
}
.hero__glow {
  position: absolute; z-index: -1;
  width: 60vw; height: 60vw; max-width: 900px; max-height: 900px;
  right: -10vw; top: 50%; translate: 0 -50%;
  background: radial-gradient(circle, rgba(233,162,59,.28) 0%, rgba(233,162,59,.08) 35%, transparent 65%);
  filter: blur(10px);
  animation: pulse 6s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .65; scale: .94; } }

.hero__inner { display: grid; grid-template-columns: 1.25fr 1fr; align-items: center; gap: 40px; }
.hero__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(3.6rem, min(9vw, 14.5vh), 10rem);
  line-height: .86; letter-spacing: -.035em;
  margin: 0 0 1.6rem;
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero__title .line > span { display: inline-block; transform: translateY(110%); transition: transform 1.1s var(--ease); }
.is-loaded .hero__title .line > span { transform: none; }
.is-loaded .hero__title .line:nth-child(2) > span { transition-delay: .08s; }
.is-loaded .hero__title .line:nth-child(3) > span { transition-delay: .16s; }
.is-loaded .hero__title .line:nth-child(4) > span { transition-delay: .24s; }
.hero__title em { color: var(--ice); }
.hero__lead { max-width: 54ch; color: #cfc9be; font-size: 1.04em; margin: 0 0 2rem; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__product { position: relative; height: min(68vh, 640px); }
.bottle { position: absolute; inset: 0; display: grid; place-items: center; }
.bottle img {
  width: auto; height: 100%; max-height: 640px; object-fit: contain;
  filter: drop-shadow(0 40px 60px rgba(0,0,0,.6)) drop-shadow(0 0 80px rgba(233,162,59,.25));
  animation: float 7s ease-in-out infinite;
  opacity: 0; transition: opacity 1.4s .4s;
}
.is-loaded .bottle img { opacity: 1; }
@keyframes float { 50% { transform: translateY(-14px) rotate(1.2deg); } }

.tags { list-style: none; margin: 0; padding: 0; }
.tag {
  position: absolute;
  display: flex; flex-direction: column;
  padding: 10px 14px;
  background: rgba(17, 19, 21, .66);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 12px; line-height: 1.3;
  opacity: 0; translate: 0 12px;
  transition: opacity .8s var(--ease), translate .8s var(--ease);
}
.tag b { font-family: var(--serif); font-weight: 400; font-size: 26px; color: var(--amber); line-height: 1; margin-bottom: 3px; }
.tag span { color: var(--muted); font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; }
.tag::before { content: ""; position: absolute; width: 40px; height: 1px; background: linear-gradient(90deg, var(--amber), transparent); top: 50%; }
.tag--1 { top: 12%; left: 0; }       .tag--1::before { left: 100%; }
.tag--2 { top: 30%; right: 0; }      .tag--2::before { right: 100%; transform: scaleX(-1); }
.tag--3 { bottom: 26%; left: 2%; }   .tag--3::before { left: 100%; }
.tag--4 { bottom: 10%; right: 4%; }  .tag--4::before { right: 100%; transform: scaleX(-1); }
.is-loaded .tag { opacity: 1; translate: 0 0; }
.is-loaded .tag--1 { transition-delay: .9s; }
.is-loaded .tag--2 { transition-delay: 1.05s; }
.is-loaded .tag--3 { transition-delay: 1.2s; }
.is-loaded .tag--4 { transition-delay: 1.35s; }

.hero__foot { display: flex; align-items: center; justify-content: space-between; margin-top: 48px; gap: 20px; }
.hero__logos { display: flex; align-items: center; gap: 22px; opacity: .8; }
.hero__logos img { width: 52px; height: auto; }
.hero__logos img.wide { width: 140px; }
.coords { color: var(--muted); margin: 0; }
.coords span { color: var(--amber); }
.scroll-cue { width: 26px; height: 42px; border: 1px solid var(--line); border-radius: 20px; position: relative; }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px; background: var(--amber); animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(16px); } }

/* ---------- marquee ---------- */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 22px 0; background: var(--ink-2); }
.marquee__track { display: flex; gap: 36px; width: max-content; animation: marquee 38s linear infinite; align-items: center; }
.marquee span { font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.6rem); white-space: nowrap; line-height: 1; }
.marquee i { font-style: normal; color: var(--amber); font-size: 1rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- story ---------- */
.story__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 8vw, 120px); }
.story__sticky { position: sticky; top: calc(var(--nav-h) + 40px); align-self: start; }
.needle { width: 40px; height: 280px; margin-top: 24px; overflow: visible; }
.needle path { fill: none; stroke: var(--amber); stroke-width: 1.5; stroke-linecap: round; }
.story__body > p { color: #c9c3b8; margin: 0 0 1.6em; max-width: 58ch; }
.story__body .big { font-family: var(--serif); font-size: clamp(1.8rem, 2.8vw, 2.5rem); line-height: 1.15; color: var(--bone); letter-spacing: -.01em; }
.story__img { margin: 3rem 0; position: relative; border-radius: var(--radius); overflow: hidden; }
.story__img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform 1.2s var(--ease); }
.story__img--tall img { aspect-ratio: 4/5; }
.story__img:hover img { transform: scale(1.04); }
.story__img figcaption { position: absolute; left: 16px; bottom: 14px; color: var(--bone); background: rgba(10,11,12,.6); padding: 6px 10px; border-radius: 6px; backdrop-filter: blur(6px); }
.pull { margin: 3.5rem 0; padding: 0 0 0 28px; border-left: 2px solid var(--amber); }
.pull p { font-family: var(--serif); font-style: italic; font-size: clamp(1.7rem, 2.6vw, 2.4rem); line-height: 1.15; margin: 0 0 .8rem; }
.pull cite { font-style: normal; color: var(--muted); }

/* ---------- artists ---------- */
.artists { background: var(--ink-2); border-top: 1px solid var(--line); }
.artists__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 40px); }
.artist { background: var(--ink-3); border: 1px solid var(--line); border-radius: calc(var(--radius) + 6px); overflow: hidden; display: flex; flex-direction: column; }
.artist__media { position: relative; aspect-ratio: 4/3.4; overflow: hidden; }
.artist__media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); transition: filter .8s var(--ease), transform 1.2s var(--ease); }
.artist:hover .artist__media img { filter: grayscale(0); transform: scale(1.03); }
.artist__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--ink-3) 0%, transparent 40%); }
.artist__badge { position: absolute; z-index: 1; top: 16px; left: 16px; padding: 7px 12px; border-radius: 999px; background: rgba(10,11,12,.7); border: 1px solid var(--line); backdrop-filter: blur(8px); }
.artist__body { padding: clamp(24px, 3vw, 40px); padding-top: 0; margin-top: -30px; position: relative; z-index: 1; display: flex; flex-direction: column; gap: 0; flex: 1; }
.artist__role { color: var(--amber); margin: 0 0 .5rem; text-transform: uppercase; letter-spacing: .08em; }
.artist__name { font-family: var(--serif); font-weight: 400; font-size: clamp(2.4rem, 4vw, 3.6rem); line-height: .95; margin: 0 0 1.2rem; letter-spacing: -.02em; }
.artist__body > p { color: #c9c3b8; margin: 0 0 1.6rem; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0 0 1.6rem; padding: 18px 0; border-block: 1px solid var(--line); }
.stats div { margin: 0; }
.stats dt { font-family: var(--serif); font-size: clamp(2.2rem, 3.5vw, 3rem); line-height: 1; color: var(--bone); }
.stats dd { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.3; }
.awards { margin: 0 0 1.6rem; border: 1px solid var(--line); border-radius: 12px; }
.awards summary { list-style: none; cursor: pointer; padding: 14px 18px; display: flex; justify-content: space-between; font-weight: 600; font-size: 15px; }
.awards summary::-webkit-details-marker { display: none; }
.awards summary span { color: var(--amber); font-size: 20px; line-height: 1; transition: transform .3s; }
.awards[open] summary span { transform: rotate(45deg); }
.awards ol { list-style: none; margin: 0; padding: 0 18px 14px; }
.awards li { padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; color: #c9c3b8; display: grid; grid-template-columns: 48px 1fr; gap: 8px; }
.awards li .mono { color: var(--amber); font-size: 12px; padding-top: 2px; }
.artist__gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 1.6rem; }
.artist__gallery img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 10px; filter: grayscale(.4); transition: filter .5s; }
.artist__gallery img:hover { filter: none; }
.artist__links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: auto; }
.artist__links a { font-size: 14px; color: var(--muted); text-decoration: none; transition: color .2s; }
.artist__links a:hover { color: var(--amber); }

/* ---------- gallery ---------- */
.gallery { background: var(--ink-2); padding: 0 0 clamp(96px, 12vw, 160px); }
.gallery__head { display: flex; justify-content: space-between; align-items: baseline; }
.gallery__hint { color: var(--muted); }
.gallery__track {
  display: flex; gap: 16px;
  overflow-x: auto; scroll-snap-type: x proximity;
  padding: 0 var(--gutter) 10px max(var(--gutter), calc((100vw - var(--maxw)) / 2 + var(--gutter)));
  scroll-padding-left: max(var(--gutter), calc((100vw - var(--maxw)) / 2 + var(--gutter)));
  cursor: grab;
  scrollbar-width: none;
}
.gallery__track::-webkit-scrollbar { display: none; }
.gallery__track.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.gallery__track figure { margin: 0; flex: 0 0 clamp(220px, 24vw, 340px); scroll-snap-align: start; border-radius: 14px; overflow: hidden; }
.gallery__track img { width: 100%; aspect-ratio: 2/3; object-fit: cover; transition: transform .8s var(--ease); pointer-events: none; user-select: none; }
.gallery__track figure:hover img { transform: scale(1.05); }

/* ---------- origin ---------- */
.origin { position: relative; min-height: 92vh; display: flex; align-items: center; padding: 140px 0; overflow: hidden; isolation: isolate; }
.origin__bg { position: absolute; inset: -10% 0; z-index: -1; }
.origin__bg img { width: 100%; height: 100%; object-fit: cover; }
.origin__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--ink-2) 0%, rgba(10,11,12,.35) 30%, rgba(10,11,12,.45) 70%, var(--ink) 100%), linear-gradient(90deg, rgba(10,11,12,.75), transparent 70%); }
.origin__inner { max-width: var(--maxw); }
.origin .eyebrow { color: var(--ice); }
.origin .h2 em { color: var(--ice); }
.origin__lead { max-width: 56ch; font-size: 1.12em; color: #dad5cb; margin: 0 0 3rem; }
.route { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); max-width: 860px; position: relative; }
.route::before { content: ""; position: absolute; top: 9px; left: 0; right: 0; height: 1px; background: repeating-linear-gradient(90deg, var(--ice) 0 6px, transparent 6px 12px); opacity: .6; }
.route li { position: relative; padding-top: 34px; font-size: 13px; }
.route li::before { content: ""; position: absolute; top: 4px; left: 0; width: 11px; height: 11px; border-radius: 50%; background: var(--ink); border: 2px solid var(--ice); }
.route li:last-child::before { background: var(--amber); border-color: var(--amber); box-shadow: 0 0 14px var(--amber); }
.route b { display: block; font-family: var(--serif); font-weight: 400; font-size: 28px; letter-spacing: 0; color: var(--bone); margin-bottom: 4px; }
.route span { color: var(--muted); display: block; padding-right: 10px; }

/* ---------- product / anatomy ---------- */
.product { background: radial-gradient(ellipse at 50% 40%, rgba(43, 88, 102, .35), transparent 60%), var(--ink); }
.anatomy { display: grid; grid-template-columns: 1fr minmax(260px, 440px) 1fr; gap: clamp(20px, 4vw, 60px); align-items: center; }
.anatomy__col { display: grid; gap: clamp(20px, 3vw, 40px); }
.anatomy__col:last-child { text-align: right; }
.anatomy__col:last-child .metric__note { margin-left: auto; }
.metric { padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.metric__num { font-family: var(--serif); font-size: clamp(3.4rem, 6.5vw, 6rem); line-height: .9; margin: 0; letter-spacing: -.03em; }
.metric__num small { font-size: .32em; color: var(--amber); margin-left: .25em; letter-spacing: 0; font-family: var(--mono); }
.metric__label { font-weight: 600; margin: 10px 0 4px; font-size: 1.05em; }
.metric__note { color: var(--muted); margin: 0; font-size: .92em; max-width: 30ch; }
.anatomy__bottle { position: relative; aspect-ratio: 1/1.15; display: grid; place-items: center; }
.anatomy__bottle img { position: relative; z-index: 1; width: 118%; max-width: none; filter: drop-shadow(0 30px 50px rgba(0,0,0,.6)); }
.ring { position: absolute; inset: 6%; border-radius: 50%; border: 1px dashed rgba(169, 214, 227, .3); animation: spin 60s linear infinite; }
.ring::before { content: ""; position: absolute; inset: 12%; border-radius: 50%; background: radial-gradient(circle, rgba(233,162,59,.22), transparent 65%); }
.ring::after { content: ""; position: absolute; top: -5px; left: 50%; width: 9px; height: 9px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 16px var(--amber); }
@keyframes spin { to { transform: rotate(360deg); } }

/* calculator */
.calc {
  margin-top: clamp(64px, 9vw, 120px);
  display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(28px, 5vw, 80px); align-items: center;
  padding: clamp(28px, 4vw, 56px);
  border: 1px solid var(--line); border-radius: calc(var(--radius) + 8px);
  background: linear-gradient(135deg, rgba(233,162,59,.08), rgba(169,214,227,.04));
}
.calc__intro p:last-child { color: var(--muted); margin: 0; }
.calc__label { display: flex; justify-content: space-between; align-items: baseline; font-weight: 600; margin-bottom: 14px; }
.calc__label output { font-family: var(--serif); font-weight: 400; font-size: 2rem; color: var(--amber); }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 34px; background: transparent; cursor: pointer; --p: 38%; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--amber) var(--p), rgba(239,233,223,.15) var(--p)); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: rgba(239,233,223,.15); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--amber); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; margin-top: -11px; border-radius: 50%; background: var(--bone); border: 6px solid var(--amber); box-shadow: 0 0 0 6px rgba(233,162,59,.18); transition: box-shadow .2s; }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--bone); border: 6px solid var(--amber); box-shadow: 0 0 0 6px rgba(233,162,59,.18); }
input[type="range"]:active::-webkit-slider-thumb { box-shadow: 0 0 0 12px rgba(233,162,59,.2); }
.calc__result { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.calc__result div { padding: 16px; border-radius: 12px; background: rgba(10,11,12,.5); border: 1px solid var(--line); }
.calc__result b { display: block; font-family: var(--serif); font-weight: 400; font-size: clamp(1.9rem, 3vw, 2.6rem); line-height: 1; }
.calc__result span { color: var(--muted); font-size: 13px; }
.calc__bar { margin-top: 14px; height: 8px; border-radius: 8px; background: rgba(239,233,223,.08); overflow: hidden; }
.calc__bar span { display: block; height: 100%; width: 40%; background: linear-gradient(90deg, var(--lemon), var(--amber)); border-radius: 8px; transition: width .4s var(--ease); }

/* ---------- benefits ---------- */
.benefits { background: var(--ink-2); border-top: 1px solid var(--line); }
.benefits__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); overflow: hidden; }
.benefit { background: var(--ink-2); padding: clamp(28px, 3.4vw, 44px); transition: background .4s; position: relative; }
.benefit:hover { background: var(--ink-3); }
.benefit svg { width: 46px; height: 46px; fill: none; stroke: var(--amber); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 28px; transition: transform .6s var(--ease); }
.benefit:hover svg { transform: scale(1.12) rotate(-4deg); }
.benefit h3 { font-family: var(--serif); font-weight: 400; font-size: 2.1rem; margin: 0 0 .5rem; line-height: 1; }
.benefit p { color: var(--muted); margin: 0; }
.benefit sup { color: var(--amber); }
.benefit--cta { background: linear-gradient(160deg, rgba(233,162,59,.16), rgba(233,162,59,.03)); }
.benefit--cta .mono { color: var(--amber); text-transform: uppercase; letter-spacing: .08em; margin: 0 0 1rem; }
.benefit--cta p:not(.mono) { margin-bottom: 1.2rem; }
.footnote { color: var(--muted-dark); font-size: 12.5px; margin: 20px 0 0; max-width: 90ch; }
.footnote sup { color: var(--amber); }

/* ---------- test (light) ---------- */
.test { background: var(--paper); color: var(--ink); }
.test strong { color: var(--ink); }
.test .eyebrow { color: var(--muted-dark); }
.test .h2 em { color: var(--muted-dark); }
.test .section__lead { color: #4a4741; margin-bottom: 2.6rem; }
.test__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 56px 1fr; gap: 12px; padding: 22px 0; border-top: 1px solid var(--line-dark); }
.steps li:last-child { border-bottom: 1px solid var(--line-dark); }
.steps__n { color: #b47616; font-size: 14px; padding-top: 6px; }
.steps h3 { margin: 0 0 4px; font-size: 1.2rem; font-weight: 600; }
.steps p { margin: 0; color: #5d5a54; }
.test__visual { position: sticky; top: calc(var(--nav-h) + 30px); display: grid; gap: 20px; }
.test__img { margin: 0; border-radius: var(--radius); overflow: hidden; background: #e9e4da; }
.test__img img { width: 100%; }
.ratio { background: var(--ink); color: var(--bone); border-radius: var(--radius); padding: 28px; }
.ratio__label { color: var(--muted); margin: 0 0 40px; text-transform: uppercase; letter-spacing: .1em; }
.ratio__track { position: relative; height: 12px; border-radius: 12px; background: linear-gradient(90deg, #6fbf9a 0%, #6fbf9a 18%, var(--lemon) 35%, var(--amber) 60%, var(--red) 100%); }
.ratio__zone { position: absolute; left: 0; width: 21%; top: -8px; bottom: -8px; border: 1px dashed rgba(239,233,223,.55); border-radius: 8px; }
.ratio__zone::after { content: attr(data-label); position: absolute; top: -22px; left: 0; font-family: var(--mono); font-size: 10.5px; color: #6fbf9a; text-transform: uppercase; letter-spacing: .1em; }
.ratio__pin { position: absolute; top: 50%; left: 73.7%; width: 26px; height: 26px; translate: -50% -50%; border-radius: 50%; background: var(--bone); border: 6px solid var(--ink); box-shadow: 0 0 0 2px var(--bone); transition: left 1.2s var(--ease); }
.ratio__ticks { display: flex; justify-content: space-between; color: var(--muted); margin-top: 12px; }
.ratio__toggle { display: flex; gap: 6px; margin-top: 24px; background: var(--ink-3); border-radius: 999px; padding: 4px; border: 1px solid var(--line); }
.ratio__toggle button { flex: 1; border: 0; background: transparent; color: var(--muted); font: 600 13px var(--sans); padding: 10px 12px; border-radius: 999px; cursor: pointer; transition: background .3s, color .3s; }
.ratio__toggle button.is-active { background: var(--bone); color: var(--ink); }
.ratio__note { color: var(--muted); font-size: 14px; margin: 16px 0 0; min-height: 3em; }

/* ---------- quality ---------- */
.badges { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.badges li { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); display: flex; flex-direction: column; gap: 8px; transition: border-color .3s, transform .5s var(--ease); }
.badges li:hover { border-color: rgba(233,162,59,.5); transform: translateY(-4px); }
.badges b { font-family: var(--serif); font-weight: 400; font-size: clamp(1.7rem, 2.4vw, 2.2rem); line-height: 1; }
.badges span { color: var(--muted); font-size: 14px; }

/* ---------- shop ---------- */
.shop { background: var(--bone); color: var(--ink); }
.shop strong { color: var(--ink); }
.shop .eyebrow { color: var(--muted-dark); }
.shop .section__lead { color: #4a4741; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 28px); }
.card {
  position: relative;
  background: var(--paper);
  border-radius: calc(var(--radius) + 6px);
  padding: 24px 24px 26px;
  display: flex; flex-direction: column;
  border: 1px solid var(--line-dark);
  transition: box-shadow .5s var(--ease), transform .5s var(--ease);
  transform-style: preserve-3d;
}
.card:hover { box-shadow: 0 30px 60px -30px rgba(10,11,12,.35); }
.card__tag { position: absolute; top: 20px; left: 20px; z-index: 2; background: var(--ink); color: var(--bone); padding: 6px 10px; border-radius: 999px; }
.card__img { aspect-ratio: 1; margin: -6px -6px 12px; border-radius: var(--radius); background: radial-gradient(circle at 50% 60%, rgba(233,162,59,.28), transparent 62%), #ebe5da; display: grid; place-items: center; overflow: hidden; }
.card--red .card__img { background: radial-gradient(circle at 50% 60%, rgba(200,71,58,.24), transparent 62%), #ebe5da; }
.card--gold .card__img { background: radial-gradient(circle at 50% 60%, rgba(242,211,107,.4), transparent 62%), #ebe5da; }
.card__img img { width: 88%; transition: transform .8s var(--ease); }
.card:hover .card__img img { transform: translateY(-8px) scale(1.04); }
.card h3 { font-family: var(--serif); font-weight: 400; font-size: 2.2rem; line-height: 1; margin: 6px 0 .6rem; }
.card p { color: #5d5a54; margin: 0 0 1.4rem; flex: 1; font-size: .96em; }
.card .btn--amber { box-shadow: none; }
.card .btn--amber:hover { --bg: var(--ink); --fg: var(--bone); --bd: var(--ink); }

/* ---------- faq ---------- */
.faq__grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(40px, 7vw, 110px); }
.faq header { position: sticky; top: calc(var(--nav-h) + 30px); align-self: start; }
.faq header .section__lead { margin-bottom: 1.6rem; }
.faq__list details { border-top: 1px solid var(--line); }
.faq__list details:last-child { border-bottom: 1px solid var(--line); }
.faq__list summary { list-style: none; cursor: pointer; padding: 26px 48px 26px 0; position: relative; font-family: var(--serif); font-size: clamp(1.5rem, 2.2vw, 2rem); line-height: 1.15; transition: color .25s; }
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary::after { content: "+"; position: absolute; right: 4px; top: 50%; translate: 0 -50%; font-family: var(--sans); font-size: 26px; color: var(--amber); transition: transform .35s var(--ease); }
.faq__list details[open] summary::after { transform: rotate(45deg); }
.faq__list summary:hover { color: var(--amber); }
.faq__list p { margin: 0 0 26px; color: #c9c3b8; max-width: 62ch; }
.faq__list p a { color: var(--amber); }

/* ---------- final ---------- */
.final { position: relative; min-height: 100vh; display: flex; align-items: center; text-align: center; overflow: hidden; isolation: isolate; padding: 140px 0; }
.final__bg { position: absolute; inset: -10% 0; z-index: -1; }
.final__bg img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); }
.final__bg::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 55%, rgba(10,11,12,.6), rgba(10,11,12,.88) 70%), linear-gradient(180deg, var(--ink) 0%, transparent 25%, transparent 75%, var(--ink) 100%); }
.final__inner { display: flex; flex-direction: column; align-items: center; }
.final .eyebrow { justify-content: center; }
.final__title { font-family: var(--serif); font-weight: 400; font-size: clamp(4rem, 13vw, 12rem); line-height: .85; letter-spacing: -.04em; margin: 0 0 2rem; }
.final__lead { max-width: 48ch; color: #d6d0c5; margin: 0 0 2.6rem; font-size: 1.1em; }
.final__small { color: var(--muted); margin: 1.4rem 0 0; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 64px 0 120px; background: var(--ink); }
.footer__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 60px; }
.footer__brand { font-family: var(--serif); font-size: 2rem; margin: 0 0 .6rem; line-height: 1; }
.footer__brand em { color: var(--muted); }
.footer__addr { color: var(--muted); margin: 0; font-size: 14px; }
.footer__links { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.footer__links a { text-decoration: none; color: var(--muted); font-size: 15px; transition: color .2s; }
.footer__links a:hover { color: var(--amber); }
.footer__legal { grid-column: 1 / -1; color: var(--muted-dark); font-size: 12.5px; margin: 0; max-width: 110ch; line-height: 1.6; }
.footer__meta { grid-column: 1 / -1; color: var(--muted-dark); margin: 0; }

/* ---------- sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed; left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); z-index: 60;
  display: none; align-items: center; gap: 12px;
  padding: 8px 18px 8px 8px; border-radius: 999px;
  background: var(--amber); color: var(--ink); text-decoration: none; font-weight: 600;
  box-shadow: 0 16px 40px -10px rgba(0,0,0,.6);
  transform: translateY(140%); transition: transform .5s var(--ease);
}
.sticky-cta img { width: 40px; height: 40px; object-fit: contain; background: var(--paper); border-radius: 50%; padding: 3px; }
.sticky-cta span:not(.arr) { flex: 1; }
.sticky-cta.is-visible { transform: none; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1080px) {
  .nav__links { display: none; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__product { height: 420px; order: -1; margin-top: -10px; display: none; }
  .anatomy { grid-template-columns: 1fr 1fr; }
  .anatomy__bottle { grid-column: 1 / -1; grid-row: 1; max-width: 320px; margin: 0 auto; width: 100%; }
  .anatomy__col:last-child { text-align: left; }
  .anatomy__col:last-child .metric__note { margin-left: 0; }
  .section__head--row { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .story__grid, .artists__grid, .test__grid, .faq__grid, .calc { grid-template-columns: 1fr; }
  .story__sticky, .faq header, .test__visual { position: static; }
  .needle { display: none; }
  .benefits__grid { grid-template-columns: 1fr 1fr; }
  .badges { grid-template-columns: 1fr 1fr; }
  .cards { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .route { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .route::before { display: none; }
  .sticky-cta { display: flex; }
}

@media (max-width: 600px) {
  :root { --nav-h: 64px; }
  .nav__name { display: none; }
  .hero { padding-top: calc(var(--nav-h) + 24px); }
  .hero__title { font-size: clamp(3.4rem, 17vw, 5.2rem); }
  .hero__cta .btn { width: 100%; }
  .hero__foot .coords { display: none; }
  .hero__logos img { width: 40px; }
  .hero__logos img.wide { width: 110px; }
  .anatomy { grid-template-columns: 1fr; }
  .benefits__grid, .badges { grid-template-columns: 1fr; }
  .calc__result { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .calc__result div { padding: 12px 10px; }
  .calc__result span { font-size: 11.5px; }
  .stats { gap: 8px; }
  .stats dd { font-size: 12px; }
  .footer__grid { grid-template-columns: 1fr; }
  .ratio { padding: 22px 18px; }
  .ratio__toggle button { font-size: 12px; padding: 10px 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal, .hero__title .line > span, .tag, .bottle img { opacity: 1 !important; transform: none !important; translate: none !important; }
}