:root {
  color-scheme: light;
  --paper: #f7f3ea;
  --ink: #1f2624;
  --muted: #68706b;
  --line: #d9d0bf;
  --panel: #fffaf0;
  --red: #a83d3f;
  --teal: #1f786f;
  --gold: #b8842d;
  --blue: #314f8d;
  --shadow: 0 20px 60px rgba(31, 38, 36, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 20% 10%, rgba(184, 132, 45, 0.16), transparent 28rem),
    linear-gradient(180deg, #fbf7ef 0%, var(--paper) 48%, #ece5d7 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

button,
a.button {
  min-height: 44px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  background: rgba(247, 243, 234, 0.88);
  border-bottom: 1px solid rgba(31, 38, 36, 0.1);
  backdrop-filter: blur(16px);
}

.brand,
.site-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.65rem;
  font-weight: 850;
  text-decoration: none;
}

.brand-mark {
  width: 1.85rem;
  aspect-ratio: 1;
  border: 3px solid var(--ink);
  border-radius: 45% 55% 48% 52% / 62% 38% 58% 42%;
  background: linear-gradient(135deg, var(--red), var(--gold));
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.38);
}

.site-nav {
  gap: clamp(0.7rem, 2.5vw, 1.8rem);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(20rem, 1.12fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 5rem);
  padding: clamp(2.5rem, 6vw, 5.5rem) clamp(1rem, 5vw, 5rem) 2rem;
}

.hero-copy {
  max-width: 42rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.98;
}

h1 {
  max-width: 13.5ch;
  font-size: clamp(3.05rem, 8vw, 7.4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 4.3rem);
}

h3 {
  font-size: 1.35rem;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 40rem;
  margin: 1.35rem 0 0;
  color: #4d5550;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
button:hover {
  transform: translateY(-1px);
}

.button.primary {
  padding: 0.85rem 1.1rem;
  background: var(--ink);
  color: #fffaf0;
  box-shadow: 0 12px 28px rgba(31, 38, 36, 0.18);
}

.button.ghost {
  padding: 0.85rem 1.1rem;
  border-color: var(--line);
  background: rgba(255, 250, 240, 0.62);
}

.hero-media {
  margin: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1.22;
  object-fit: cover;
  border: 1px solid rgba(31, 38, 36, 0.12);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-block: 1px solid rgba(31, 38, 36, 0.12);
  background: #1f2624;
  color: #fffaf0;
}

.trust-strip span {
  min-height: 4rem;
  display: grid;
  place-items: center;
  padding: 0.9rem;
  border-right: 1px solid rgba(255, 250, 240, 0.18);
  font-size: 0.9rem;
  font-weight: 850;
  text-align: center;
}

.shop-section {
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 5rem);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  max-width: 13ch;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
}

.filter-button {
  padding: 0.7rem 0.9rem;
  border-color: var(--line);
  background: rgba(255, 250, 240, 0.72);
  color: var(--ink);
}

.filter-button.active {
  background: var(--teal);
  color: white;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1rem;
  border: 1px solid rgba(31, 38, 36, 0.12);
  border-radius: 0.5rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.42), transparent 42%),
    repeating-linear-gradient(0deg, rgba(31, 38, 36, 0.025) 0 1px, transparent 1px 7px),
    rgba(255, 250, 240, 0.84);
  box-shadow: 0 12px 30px rgba(31, 38, 36, 0.08);
}

.product-card[hidden] {
  display: none;
}

.stain-swatch {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 1.3;
  margin-bottom: 1rem;
  border: 0;
  border-radius: 46% 54% 62% 38% / 50% 38% 62% 50%;
  filter: saturate(0.95) contrast(1.03);
  opacity: 0.94;
  box-shadow:
    inset 0 0 2.2rem rgba(255, 250, 240, 0.22),
    inset 0 0 1.1rem rgba(0, 0, 0, 0.16),
    0 0.35rem 0.8rem rgba(31, 38, 36, 0.08);
  transform: rotate(var(--tilt, -1deg));
}

.stain-swatch::before,
.stain-swatch::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
}

.stain-swatch::before {
  background:
    radial-gradient(ellipse at 48% 48%, transparent 0 34%, rgba(255, 250, 240, 0.22) 35% 41%, transparent 42%),
    radial-gradient(ellipse at 56% 44%, rgba(255, 250, 240, 0.24) 0 12%, transparent 13%),
    radial-gradient(ellipse at 28% 74%, rgba(0, 0, 0, 0.12) 0 9%, transparent 10%),
    radial-gradient(ellipse at 78% 68%, rgba(0, 0, 0, 0.1) 0 6%, transparent 7%);
  mix-blend-mode: multiply;
  opacity: 0.78;
}

.stain-swatch::after {
  background:
    radial-gradient(circle at 18% 80%, rgba(0, 0, 0, 0.22) 0 1px, transparent 2px),
    radial-gradient(circle at 41% 31%, rgba(0, 0, 0, 0.16) 0 1px, transparent 2px),
    radial-gradient(circle at 53% 67%, rgba(255, 250, 240, 0.26) 0 2px, transparent 3px),
    radial-gradient(circle at 76% 20%, rgba(0, 0, 0, 0.15) 0 1px, transparent 2px),
    radial-gradient(ellipse at 50% 52%, rgba(0, 0, 0, 0.18) 0 28%, transparent 68%);
  background-size: 6.5rem 5.8rem, 4.8rem 4.8rem, 6rem 7rem, 3.8rem 3.8rem, auto;
  border-radius: inherit;
  filter: blur(0.35px);
  mix-blend-mode: multiply;
  opacity: 0.72;
}

.stain-swatch.tea {
  --tilt: -2deg;
  border-radius: 31% 69% 42% 58% / 59% 38% 62% 41%;
  background:
    radial-gradient(ellipse at 65% 35%, rgba(211, 155, 88, 0.82) 0 18%, transparent 31%),
    radial-gradient(ellipse at 30% 70%, rgba(90, 40, 23, 0.64) 0 14%, transparent 29%),
    #8c4b2b;
}

.stain-swatch.soot {
  --tilt: 1.5deg;
  border-radius: 55% 45% 50% 50% / 41% 55% 45% 59%;
  background:
    radial-gradient(circle at 35% 60%, #6f756f, #202423 62%),
    radial-gradient(circle at 68% 28%, #0e1110, transparent 28%);
}

.stain-swatch.ash {
  --tilt: -0.75deg;
  background:
    radial-gradient(circle at 30% 55%, #f1ede3 0 12%, transparent 13%),
    linear-gradient(135deg, #d6d1c6, #777b79);
}

.stain-swatch.moon {
  --tilt: 2deg;
  background: radial-gradient(circle at 35% 35%, #f0eee5 0 15%, transparent 16%), #b9b8ae;
}

.stain-swatch.mud {
  --tilt: -1.5deg;
  border-radius: 60% 40% 56% 44% / 38% 58% 42% 62%;
  background:
    radial-gradient(circle at 24% 68%, #3d2416 0 13%, transparent 14%),
    linear-gradient(145deg, #6d4b30, #b9804e);
}

.stain-swatch.ink {
  --tilt: 1deg;
  background:
    radial-gradient(ellipse at 72% 28%, rgba(64, 95, 159, 0.88) 0 12%, transparent 27%),
    radial-gradient(ellipse at 35% 68%, rgba(7, 14, 31, 0.7) 0 18%, transparent 34%),
    #101b36;
}

.stain-swatch.paint {
  --tilt: -2.2deg;
  background: conic-gradient(from 90deg, #c93f57, #e3b839, #2b8c81, #334e92, #c93f57);
}

.stain-swatch.wine {
  --tilt: 1.8deg;
  background: radial-gradient(ellipse at 58% 42%, rgba(209, 113, 138, 0.78) 0 17%, transparent 32%), #6e243d;
}

.stain-swatch.hindenburg {
  --tilt: 2deg;
  border-radius: 58% 42% 63% 37% / 45% 52% 48% 55%;
  background: radial-gradient(circle at 58% 42%, #f6eee0 0 8%, transparent 9%), linear-gradient(135deg, #111312, #52504c 52%, #a75a28);
}

.stain-swatch.watergate {
  --tilt: -1deg;
  border-radius: 66% 34% 58% 42% / 52% 38% 62% 48%;
  background: repeating-linear-gradient(18deg, #201814 0 0.35rem, #554236 0.36rem 0.7rem);
}

.stain-swatch.chernobyl {
  --tilt: 1deg;
  background: linear-gradient(135deg, #303632, #8c967c 62%, #d6c84a 63% 68%, #303632 69%);
}

.stain-swatch.exxon {
  --tilt: -1.8deg;
  border-radius: 42% 58% 37% 63% / 60% 44% 56% 40%;
  background: radial-gradient(ellipse at 70% 35%, rgba(255, 255, 255, 0.28), transparent 28%), linear-gradient(135deg, #080a0b, #263638 48%, #5c4731);
}

.stain-swatch.checkpoint {
  background: radial-gradient(circle at 35% 45%, #9f75c7 0 18%, transparent 19%), #543575;
}

.stain-swatch.y2k {
  background: radial-gradient(circle at 28% 42%, #d9d0bb 0 14%, transparent 15%), linear-gradient(145deg, #9b998b, #d3cfbe);
}

.stain-swatch.hanging-chad {
  background:
    radial-gradient(circle at 25% 34%, #fffaf0 0 5%, transparent 6%),
    radial-gradient(circle at 72% 62%, #fffaf0 0 4%, transparent 5%),
    #c5b08d;
}

.stain-swatch.iceland {
  background: linear-gradient(135deg, #b8c0bf, #626a66 58%, #e8e5dc);
}

.stain-swatch.olympic {
  background: radial-gradient(circle at 62% 40%, #69ddc1 0 16%, transparent 17%), linear-gradient(135deg, #126e87, #5ed1a5);
}

.stain-swatch.fyre {
  background: radial-gradient(circle at 55% 45%, #fff1a8 0 16%, transparent 17%), linear-gradient(135deg, #e1a92e, #f4d450);
}

.stain-swatch.evergiven {
  background: linear-gradient(120deg, #c8a86c, #efe1bd 46%, #8b7350 47% 54%, #dec487 55%);
}

.stain-swatch.ai {
  background: conic-gradient(from 45deg, #16213c, #6e4bc2, #2aa7a0, #161b2f, #16213c);
}

.stain-swatch.caesar {
  background: radial-gradient(circle at 45% 45%, #c89d6b 0 9%, transparent 10%), linear-gradient(135deg, #7b1f2d, #b64a3a);
}

.stain-swatch.archduke {
  background:
    linear-gradient(52deg, transparent 0 45%, rgba(255, 250, 240, 0.42) 46% 49%, transparent 50%),
    radial-gradient(circle at 62% 42%, #43141d 0 15%, transparent 16%),
    #8d2e38;
}

.stain-swatch.dallas {
  background: radial-gradient(circle at 36% 38%, #1e2118 0 12%, transparent 13%), linear-gradient(145deg, #6d7b45, #25291f);
}

.stain-swatch.titanic {
  background: radial-gradient(circle at 68% 32%, #f5ffff 0 16%, transparent 17%), linear-gradient(135deg, #aacce0, #335873);
}

.stain-swatch.hiroshima {
  background: radial-gradient(circle at 50% 42%, #e8e3d5 0 10%, transparent 11%), linear-gradient(135deg, #1c1f1f, #6d706c 52%, #d2cabd);
}

.stain-swatch.tunguska {
  --tilt: 2.4deg;
  border-radius: 50% 50% 65% 35% / 38% 62% 38% 62%;
  background: conic-gradient(from 20deg, #331b0d, #e07a24, #f0c46a, #3b2110, #331b0d);
}

.stain-swatch.challenger {
  background: radial-gradient(circle at 58% 35%, #ffffff 0 9%, transparent 10%), linear-gradient(135deg, #dfefff, #7ca2cb 48%, #223b65);
}

.stain-swatch.molasses {
  --tilt: -2deg;
  border-radius: 65% 35% 43% 57% / 49% 62% 38% 51%;
  background: radial-gradient(circle at 65% 40%, #8a5c2d 0 14%, transparent 15%), linear-gradient(135deg, #2d160c, #70401e);
}

.stain-swatch.mountsthelens {
  background: radial-gradient(circle at 50% 45%, #f1efe7 0 18%, transparent 19%), linear-gradient(135deg, #575b58, #b9b5a9);
}

.stain-swatch.nixon {
  background:
    repeating-linear-gradient(90deg, rgba(255, 250, 240, 0.28) 0 0.18rem, transparent 0.19rem 0.5rem),
    linear-gradient(135deg, #11192d, #345582);
}

.stain-swatch.bp {
  background: radial-gradient(circle at 68% 34%, rgba(120, 210, 214, 0.55), transparent 17%), linear-gradient(135deg, #050708, #0b313f 46%, #151a12);
}

.stain-swatch.meteor {
  background: radial-gradient(circle at 68% 35%, #fff3b5 0 10%, transparent 11%), linear-gradient(135deg, #242936, #e78232 58%, #9ca6ab);
}

.stain-swatch.beans {
  --tilt: 2deg;
  border-radius: 39% 61% 48% 52% / 57% 44% 56% 43%;
  background: radial-gradient(ellipse at 65% 38%, rgba(255, 208, 138, 0.74) 0 12%, transparent 28%), linear-gradient(135deg, #8f251b, #e26a32);
}

.stain-swatch.cherno {
  background: radial-gradient(circle at 32% 58%, #2f251b 0 12%, transparent 13%), linear-gradient(135deg, #5a422d, #9c7654);
}

.stain-swatch.saline {
  --tilt: -1.6deg;
  border-radius: 38% 62% 55% 45% / 61% 36% 64% 39%;
  background: radial-gradient(circle at 58% 35%, rgba(255, 255, 255, 0.72) 0 14%, transparent 15%), linear-gradient(135deg, #d9f5ff, #6ba6c8);
}

.stain-swatch.nwaf {
  background: repeating-linear-gradient(135deg, #4e5657 0 0.5rem, #8e9692 0.55rem 1rem);
}

.stain-swatch.map {
  background:
    linear-gradient(40deg, transparent 0 45%, rgba(255, 250, 240, 0.5) 46% 48%, transparent 49%),
    linear-gradient(135deg, #285c64, #7b9d72);
}

.stain-swatch.radiator {
  background: radial-gradient(circle at 66% 36%, #7cc5b1 0 12%, transparent 13%), linear-gradient(135deg, #345b4a, #9b4d29);
}

.stain-swatch.infected {
  background: radial-gradient(circle at 42% 55%, #1d241e 0 18%, transparent 19%), linear-gradient(135deg, #384236, #746d4c);
}

.stain-swatch.rainwater {
  --tilt: 1.2deg;
  border-radius: 46% 54% 36% 64% / 55% 45% 55% 45%;
  background: radial-gradient(circle at 62% 38%, rgba(255, 255, 255, 0.44), transparent 20%), linear-gradient(135deg, #75838e, #bcc8cf);
}

.stain-swatch.burlap {
  background: repeating-linear-gradient(25deg, #9f8359 0 0.25rem, #d1b98a 0.28rem 0.55rem);
}

.stain-swatch.pipsi {
  background: radial-gradient(circle at 68% 32%, #f1d9a8 0 9%, transparent 10%), linear-gradient(135deg, #26140e, #6b351d);
}

/* Material sample pass: make each product read as a stain on a surface. */
.stain-swatch {
  --material-a: #e8decb;
  --material-b: #fff7e8;
  --material-line: rgba(31, 38, 36, 0.08);
  --stain-a: rgba(115, 61, 35, 0.72);
  --stain-b: rgba(63, 31, 18, 0.38);
  --stain-c: rgba(255, 250, 240, 0.18);
  --grain: repeating-linear-gradient(0deg, var(--material-line) 0 1px, transparent 1px 7px);
  overflow: hidden;
  border: 1px solid rgba(31, 38, 36, 0.12);
  border-radius: 0.35rem;
  background:
    radial-gradient(circle at 80% 18%, rgba(255, 255, 255, 0.38), transparent 22%),
    var(--grain),
    linear-gradient(135deg, var(--material-a), var(--material-b));
  box-shadow:
    inset 0 0 1.6rem rgba(31, 38, 36, 0.08),
    0 0.75rem 1.2rem rgba(31, 38, 36, 0.12);
  opacity: 1;
}

.stain-swatch::before {
  inset: 13% 11% 15% 10%;
  border-radius: var(--stain-radius, 48% 52% 62% 38% / 48% 42% 58% 52%);
  background:
    radial-gradient(ellipse at 34% 38%, var(--stain-c) 0 10%, transparent 22%),
    radial-gradient(ellipse at 62% 44%, var(--stain-a) 0 24%, transparent 46%),
    radial-gradient(ellipse at 36% 70%, var(--stain-b) 0 16%, transparent 36%),
    radial-gradient(ellipse at 78% 72%, var(--stain-b) 0 9%, transparent 24%),
    linear-gradient(135deg, var(--stain-a), var(--stain-b));
  filter: blur(var(--stain-blur, 1.6px));
  mix-blend-mode: multiply;
  opacity: var(--stain-opacity, 0.86);
  transform: rotate(var(--tilt, -1deg)) scale(var(--stain-scale, 1));
}

.stain-swatch::after {
  background:
    radial-gradient(circle at 18% 80%, rgba(0, 0, 0, 0.2) 0 1px, transparent 2px),
    radial-gradient(circle at 41% 31%, rgba(0, 0, 0, 0.13) 0 1px, transparent 2px),
    radial-gradient(circle at 53% 67%, rgba(255, 250, 240, 0.24) 0 2px, transparent 3px),
    radial-gradient(circle at 76% 20%, rgba(0, 0, 0, 0.13) 0 1px, transparent 2px),
    radial-gradient(ellipse at 50% 52%, transparent 0 28%, rgba(31, 38, 36, 0.1) 55%, transparent 72%);
  background-size: 6.5rem 5.8rem, 4.8rem 4.8rem, 6rem 7rem, 3.8rem 3.8rem, auto;
  mix-blend-mode: multiply;
  opacity: 0.62;
}

.stain-swatch.tea,
.stain-swatch.beans,
.stain-swatch.fyre,
.stain-swatch.pipsi {
  --material-a: #eee0c7;
  --material-b: #fff7e3;
  --stain-a: rgba(174, 82, 35, 0.8);
  --stain-b: rgba(105, 42, 20, 0.46);
  --stain-c: rgba(255, 201, 112, 0.38);
}

.stain-swatch.soot,
.stain-swatch.hindenburg,
.stain-swatch.chernobyl,
.stain-swatch.hiroshima,
.stain-swatch.challenger,
.stain-swatch.mountsthelens,
.stain-swatch.meteor {
  --material-a: #c5c8c2;
  --material-b: #f0eee5;
  --grain: repeating-linear-gradient(90deg, rgba(31, 38, 36, 0.05) 0 1px, transparent 1px 9px);
  --stain-a: rgba(54, 58, 55, 0.74);
  --stain-b: rgba(18, 20, 19, 0.42);
  --stain-c: rgba(242, 238, 220, 0.28);
  --stain-blur: 2.2px;
}

.stain-swatch.ash,
.stain-swatch.moon,
.stain-swatch.iceland,
.stain-swatch.evergiven,
.stain-swatch.tunguska {
  --material-a: #b8b8ae;
  --material-b: #ded8c7;
  --grain: repeating-linear-gradient(135deg, rgba(31, 38, 36, 0.05) 0 2px, transparent 2px 10px);
  --stain-a: rgba(118, 106, 86, 0.64);
  --stain-b: rgba(70, 61, 49, 0.36);
  --stain-c: rgba(236, 221, 168, 0.28);
}

.stain-swatch.mud,
.stain-swatch.cherno,
.stain-swatch.molasses,
.stain-swatch.burlap {
  --material-a: #a58d68;
  --material-b: #d0bc91;
  --grain: repeating-linear-gradient(25deg, rgba(68, 49, 30, 0.14) 0 1px, transparent 1px 7px);
  --stain-a: rgba(88, 52, 27, 0.76);
  --stain-b: rgba(40, 23, 14, 0.42);
}

.stain-swatch.ink,
.stain-swatch.paint,
.stain-swatch.watergate,
.stain-swatch.checkpoint,
.stain-swatch.map,
.stain-swatch.nixon,
.stain-swatch.ai {
  --material-a: #ddd3bd;
  --material-b: #fff4d9;
  --grain: repeating-linear-gradient(0deg, rgba(43, 37, 29, 0.08) 0 1px, transparent 1px 8px);
  --stain-a: rgba(28, 42, 91, 0.78);
  --stain-b: rgba(13, 20, 45, 0.44);
  --stain-c: rgba(96, 130, 190, 0.24);
}

.stain-swatch.wine,
.stain-swatch.caesar,
.stain-swatch.archduke,
.stain-swatch.dallas {
  --material-a: #e0d3bd;
  --material-b: #fff5e2;
  --stain-a: rgba(123, 31, 45, 0.78);
  --stain-b: rgba(66, 18, 28, 0.42);
  --stain-c: rgba(214, 126, 135, 0.24);
}

.stain-swatch.exxon,
.stain-swatch.bp {
  --material-a: #a8b2ad;
  --material-b: #d0d7d2;
  --grain: repeating-linear-gradient(90deg, rgba(31, 38, 36, 0.08) 0 1px, transparent 1px 12px);
  --stain-a: rgba(6, 10, 12, 0.82);
  --stain-b: rgba(12, 50, 58, 0.48);
  --stain-c: rgba(125, 210, 210, 0.22);
}

.stain-swatch.titanic,
.stain-swatch.saline,
.stain-swatch.rainwater,
.stain-swatch.olympic,
.stain-swatch.radiator {
  --material-a: #d8e2e3;
  --material-b: #f5fbf7;
  --stain-a: rgba(43, 122, 136, 0.62);
  --stain-b: rgba(31, 76, 87, 0.32);
  --stain-c: rgba(255, 255, 255, 0.42);
  --stain-opacity: 0.72;
  --stain-blur: 2.4px;
}

.stain-swatch.y2k,
.stain-swatch.hanging-chad {
  --material-a: #d6ccb9;
  --material-b: #faf3e6;
  --stain-a: rgba(117, 111, 97, 0.58);
  --stain-b: rgba(66, 61, 54, 0.28);
  --stain-opacity: 0.72;
}

.stain-swatch.nwaf {
  --material-a: #737b7a;
  --material-b: #b5bab5;
  --grain: repeating-linear-gradient(135deg, rgba(255, 250, 240, 0.08) 0 2px, transparent 2px 14px);
  --stain-a: rgba(45, 47, 45, 0.58);
  --stain-b: rgba(20, 22, 22, 0.34);
  --stain-radius: 64% 36% 58% 42% / 39% 59% 41% 61%;
  --stain-blur: 2.8px;
}

.stain-swatch.infected {
  --material-a: #596551;
  --material-b: #938a62;
  --grain: repeating-linear-gradient(90deg, rgba(255, 250, 240, 0.08) 0 1px, transparent 1px 6px);
  --stain-a: rgba(40, 49, 37, 0.7);
  --stain-b: rgba(21, 26, 20, 0.42);
}

/* Photorealistic stain samples from the generated 7x6 contact sheet. */
.product-card .stain-swatch {
  background: url("assets/photoreal-stain-sheet.png") no-repeat;
  background-size: 700% 600%;
  border: 1px solid rgba(31, 38, 36, 0.16);
  border-radius: 0.35rem;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0.75rem 1.2rem rgba(31, 38, 36, 0.12);
  filter: none;
  opacity: 1;
  transform: none;
}

.stain-swatch::before,
.stain-swatch::after {
  display: none;
}

.stain-swatch.tea { background-position: 0% 0%; }
.stain-swatch.soot { background-position: 16.6667% 0%; }
.stain-swatch.ash { background-position: 33.3333% 0%; }
.stain-swatch.moon { background-position: 50% 0%; }
.stain-swatch.mud { background-position: 66.6667% 0%; }
.stain-swatch.ink { background-position: 83.3333% 0%; }
.stain-swatch.paint { background-position: 100% 0%; }
.stain-swatch.wine { background-position: 0% 20%; }
.stain-swatch.hindenburg { background-position: 16.6667% 20%; }
.stain-swatch.watergate { background-position: 33.3333% 20%; }
.stain-swatch.chernobyl { background-position: 50% 20%; }
.stain-swatch.exxon { background-position: 66.6667% 20%; }
.stain-swatch.checkpoint { background-position: 83.3333% 20%; }
.stain-swatch.y2k { background-position: 100% 20%; }
.stain-swatch.hanging-chad { background-position: 0% 40%; }
.stain-swatch.iceland { background-position: 16.6667% 40%; }
.stain-swatch.olympic { background-position: 33.3333% 40%; }
.stain-swatch.fyre { background-position: 50% 40%; }
.stain-swatch.evergiven { background-position: 66.6667% 40%; }
.stain-swatch.ai { background-position: 83.3333% 40%; }
.stain-swatch.caesar { background-position: 100% 40%; }
.stain-swatch.archduke { background-position: 0% 60%; }
.stain-swatch.dallas { background-position: 16.6667% 60%; }
.stain-swatch.titanic { background-position: 33.3333% 60%; }
.stain-swatch.hiroshima { background-position: 50% 60%; }
.stain-swatch.tunguska { background-position: 66.6667% 60%; }
.stain-swatch.challenger { background-position: 83.3333% 60%; }
.stain-swatch.molasses { background-position: 100% 60%; }
.stain-swatch.mountsthelens { background-position: 0% 80%; }
.stain-swatch.nixon { background-position: 16.6667% 80%; }
.stain-swatch.bp { background-position: 33.3333% 80%; }
.stain-swatch.meteor { background-position: 50% 80%; }
.stain-swatch.beans { background-position: 66.6667% 80%; }
.stain-swatch.cherno { background-position: 83.3333% 80%; }
.stain-swatch.saline { background-position: 100% 80%; }
.stain-swatch.nwaf { background-position: 0% 100%; }
.stain-swatch.map { background-position: 16.6667% 100%; }
.stain-swatch.radiator { background-position: 33.3333% 100%; }
.stain-swatch.infected { background-position: 50% 100%; }
.stain-swatch.rainwater { background-position: 66.6667% 100%; }
.stain-swatch.burlap { background-position: 83.3333% 100%; }
.stain-swatch.pipsi { background-position: 100% 100%; }

.era {
  margin: 0 0 0.35rem;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 850;
  text-transform: uppercase;
}

.product-card p:not(.era) {
  flex: 1;
  margin: 0.75rem 0 1rem;
  color: var(--muted);
}

.product-footer,
.cart-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.price {
  font-size: 1.35rem;
  font-weight: 900;
}

.add-button,
.checkout-button {
  padding: 0.7rem 0.9rem;
  background: var(--red);
  color: white;
}

.add-button.added {
  background: var(--teal);
}

.info-band,
.cart-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  margin: 0 clamp(1rem, 5vw, 5rem);
  padding: clamp(2rem, 5vw, 4rem);
  border-block: 1px solid rgba(31, 38, 36, 0.14);
}

.info-band p:last-child {
  margin: 0;
  color: #424a45;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.cart-panel {
  margin-top: 2rem;
  margin-bottom: 4rem;
  background: var(--panel);
  border: 1px solid rgba(31, 38, 36, 0.12);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
}

.cart-summary {
  min-height: 4.5rem;
  padding: 1rem;
  border: 1px dashed rgba(31, 38, 36, 0.28);
  border-radius: 0.5rem;
  background: #fff;
}

.cart-summary strong {
  font-size: 2rem;
}

.checkout-button {
  justify-self: start;
}

.site-footer {
  padding: 2rem clamp(1rem, 5vw, 5rem);
  color: var(--muted);
  text-align: center;
}

.site-footer p {
  margin: 0.35rem auto;
  max-width: 56rem;
}

.site-footer a {
  color: var(--ink);
  font-weight: 850;
  text-decoration-color: rgba(168, 61, 63, 0.5);
  text-underline-offset: 0.18em;
}

.site-footer a:hover {
  color: var(--red);
}

@media (max-width: 1000px) {
  .hero,
  .section-heading,
  .info-band,
  .cart-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding-top: 2rem;
  }

  h1 {
    font-size: clamp(2.65rem, 15vw, 4.2rem);
  }

  .trust-strip,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .trust-strip span {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 250, 240, 0.18);
  }

  .cart-summary {
    align-items: flex-start;
    flex-direction: column;
  }
}