/* Layout: asymmetric hero (copy left, fabric swatch right), spec strip, then
   alternating light / tint / dark bands. Monochrome only, per the moodboard. */
:root {
  --ink: #0a0a0a;
  --graphite: #333333;
  --stone: #666666;
  --ash: #b3b3b3;
  --mist: #eaeaea;
  --paper: #ffffff;

  --font: "Montserrat", "Helvetica Neue", Arial, sans-serif;

  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.875rem);
  --step-0: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.6rem, 1.2rem + 2vw, 2.75rem);
  --step-3: clamp(2.5rem, 1.4rem + 5vw, 5.5rem);

  --gutter: clamp(1rem, 4vw, 2.5rem);
  --max: 72rem;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { margin: 0; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.section-dark :focus-visible { outline-color: var(--paper); }

.wrap {
  width: 100%;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: max(var(--gutter), env(safe-area-inset-left, 0px)) max(var(--gutter), env(safe-area-inset-right, 0px));
}

.eyebrow {
  font-size: var(--step--1);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--stone);
  margin-bottom: 1.25rem;
}
.lead { font-size: var(--step-1); line-height: 1.55; color: var(--graphite); max-width: 38rem; }
.todo-note {
  position: absolute; right: 0.9rem; bottom: 0.8rem;
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--stone); background: color-mix(in srgb, var(--paper) 85%, transparent);
  padding: 0.25rem 0.55rem;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: baseline; gap: 0.5rem; justify-content: center;
  padding: 0.95rem 1.6rem;
  font: 600 var(--step--1)/1 var(--font);
  letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none;
  color: var(--paper); background: var(--ink);
  border: 2px solid var(--ink); border-radius: 0;
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: var(--paper); color: var(--ink); }
.btn small { font-size: 0.75em; letter-spacing: 0.06em; text-transform: none; opacity: 0.7; font-weight: 500; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { padding: 0.65rem 1.1rem; }
.btn[aria-disabled="true"] { cursor: not-allowed; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mist);
}
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; font-weight: 800; letter-spacing: 0.3em; }
.nav { display: flex; gap: 2rem; margin-left: auto; margin-right: 1rem; }
.nav a { text-decoration: none; font-size: var(--step--1); font-weight: 500; letter-spacing: 0.06em; color: var(--graphite); }
.nav a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 0.4em; }

/* Hero */
.hero { padding-block: clamp(2.5rem, 7vw, 5.5rem) 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: end; }
.hero h1 { font-size: var(--step-3); font-weight: 900; letter-spacing: -0.04em; margin-bottom: 1.75rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }

.hero-visual { position: relative; margin: 0; }
.fabric {
  aspect-ratio: 4 / 5; max-width: 100%;
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,0.07) 0 1px, transparent 1px 5px),
    repeating-linear-gradient(0deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 3px),
    linear-gradient(160deg, var(--mist), var(--ash) 140%);
}
.hero-visual figcaption {
  position: absolute; left: 0; bottom: 0;
  display: grid; gap: 0.15rem; padding: 1rem 1.25rem;
  background: var(--ink); color: var(--paper);
  font-size: var(--step--1); letter-spacing: 0.08em;
}
.hero-visual figcaption span:first-child { font-weight: 700; text-transform: uppercase; letter-spacing: 0.18em; }
.hero-visual figcaption span:last-child { color: var(--ash); }
.hero-visual .todo-note { bottom: auto; top: 0.8rem; }

.specs {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 2px solid var(--ink);
}
.specs li { display: grid; gap: 0.1rem; padding: 1.25rem 1rem 1.25rem 0; border-right: 1px solid var(--mist); }
.specs li:not(:first-child) { padding-left: 1rem; }
.specs li:last-child { border-right: 0; }
.specs strong { font-size: var(--step-1); font-weight: 800; letter-spacing: -0.01em; line-height: 1.1; }
.specs span { font-size: var(--step--1); color: var(--stone); }

/* Sections */
.section { padding-block: clamp(4rem, 10vw, 8rem); }
.section-tint { background: var(--mist); }
.section-dark { background: var(--ink); color: var(--paper); }
.section-dark .eyebrow, .section-dark .lead { color: var(--ash); }
.section-head { margin-bottom: clamp(2rem, 5vw, 3.5rem); max-width: 46rem; }
.section-head h2, .buy h2 { font-size: var(--step-2); font-weight: 800; margin-bottom: 1.25rem; }

/* Compare */
.compare { display: grid; border-top: 2px solid var(--ink); }
.compare .row { display: grid; grid-template-columns: 0.8fr 1.1fr 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--mist); }
.compare .row > div { min-width: 0; }
.compare .head { font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.14em; font-weight: 700; color: var(--stone); }
.compare .head div:nth-child(2) { color: var(--ink); }
.compare .row:not(.head) div:first-child { font-weight: 600; }
.compare .row:not(.head) div:nth-child(2) { font-weight: 600; }
.compare .row:not(.head) div:nth-child(3) { color: var(--stone); }

.finish { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1.5rem, 4vw, 3rem); margin-top: clamp(2.5rem, 6vw, 4rem); }
.finish article { padding-top: 1.25rem; border-top: 2px solid var(--ink); }
.finish h3 { font-size: var(--step-1); font-weight: 800; margin-bottom: 0.6rem; }
.finish p { color: var(--graphite); margin-bottom: 1rem; }
.finish li { padding: 0.4rem 0 0.4rem 1.2rem; position: relative; font-size: 0.95em; }
.finish li::before { content: ""; position: absolute; left: 0; top: 1.05em; width: 0.5rem; height: 2px; background: var(--ink); }

/* Products */
.products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1.5rem, 4vw, 3rem); }
.product { display: grid; grid-template-rows: auto 1fr; background: var(--paper); }
.shot {
  position: relative; aspect-ratio: 1 / 1; max-width: 100%;
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,0.06) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(0deg, rgba(0,0,0,0.04) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, #d9d9d9, var(--mist));
}
.shot-dark {
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.07) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, var(--graphite), var(--ink));
}
.shot .tag {
  position: absolute; left: 0; top: 0;
  background: var(--ink); color: var(--paper);
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 0.5rem 0.85rem;
}
.shot-dark .tag { background: var(--paper); color: var(--ink); }
.product-body { padding: clamp(1.25rem, 3vw, 2rem); display: grid; gap: 1.1rem; align-content: start; }
.product h3 { font-size: var(--step-1); font-weight: 800; }
.price { font-size: var(--step-2); font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.price small { font-size: var(--step--1); font-weight: 500; color: var(--stone); letter-spacing: 0; }
.product dl { margin: 0; display: grid; }
.product dl > div { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1rem; padding: 0.6rem 0; border-top: 1px solid var(--mist); font-size: 0.95em; }
.product dt { color: var(--stone); }
.product dd { margin: 0; font-weight: 500; }
.product .btn { justify-self: start; margin-top: 0.4rem; }
.soon { margin-top: 2rem; color: var(--graphite); }

/* Values */
.values { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: clamp(1.5rem, 3vw, 2.5rem); }
.values li { padding-top: 1.25rem; border-top: 1px solid var(--graphite); }
.values h3 { font-size: var(--step-1); font-weight: 700; margin-bottom: 0.6rem; }
.values p { color: var(--ash); font-size: 0.95em; }

/* Buy */
.buy { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(2rem, 5vw, 4rem); align-items: end; }
.buy-links { display: grid; gap: 0.75rem; }
.buy-links .btn { justify-content: space-between; padding-block: 1.15rem; }

/* Footer */
.site-footer { background: var(--ink); color: var(--ash); padding-block: 3rem calc(3rem + env(safe-area-inset-bottom, 0px)); }
.foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; }
.foot img { filter: invert(1); }
.foot p { font-size: var(--step--1); letter-spacing: 0.06em; }

/* Tablet and phone */
@media (max-width: 52rem) {
  .nav { display: none; }
  .bar { justify-content: space-between; }
  .hero-grid, .buy, .products, .finish { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { max-width: 26rem; }
  .specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .specs li, .specs li:not(:first-child) { padding: 1rem 0.75rem 1rem 0; border-right: 0; border-bottom: 1px solid var(--mist); }
  .specs li:nth-child(even) { padding-left: 0.75rem; }
  .compare .row { grid-template-columns: 0.9fr 1.1fr 1fr; gap: 0.6rem; font-size: 0.9rem; }
}
@media (max-width: 26rem) {
  .btn:not(.btn-sm) { width: 100%; }
  .brand { min-width: 0; }
  .product .btn { justify-self: stretch; }
  .product dl > div { grid-template-columns: 5.5rem minmax(0, 1fr); gap: 0.6rem; }
  .brand span { letter-spacing: 0.22em; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}