/* Leather Merchants — stylesheet (mobile-first: 480 / 768 / 1024) */

:root {
  /* Colour */
  --c-green: #1F3A33;
  --c-green-deep: #172C27;
  --c-oxblood: #5C1F26;
  --c-oxblood-deep: #44161B;
  --c-tan: #B97A45;
  --c-tan-deep: #8F5A2E;
  --c-thread: #E8C98A;
  --c-tag: #D9B98C;
  --c-sage: #E3E6DF;
  --c-sage-deep: #CFD4CA;
  --c-card: #F7F7F3;
  --c-text: #1F3A33;
  --c-text-soft: #4A5A54;
  --c-on-dark: #F3E9D6;
  --c-on-dark-soft: #DCCDB3;
  --c-rule: #C3C9BE;
  --c-rule-dark: rgba(243, 233, 214, 0.18);
  --c-field: #6B7A73;
  --c-error: #9E1B2A;
  --c-grain-light: rgba(255, 240, 220, 0.06);
  --c-grain-dark: rgba(0, 0, 0, 0.14);

  /* Type */
  --f-display: "Libre Caslon Display", Georgia, "Times New Roman", serif;
  --f-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* Spacing */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --wrap: 1180px;
  --gutter: 1.25rem;

  /* Radii */
  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 22px;
  --r-pill: 999px;

  /* Shadows */
  --sh-hide: 0 30px 60px -32px rgba(23, 44, 39, 0.75), inset 0 1px 0 rgba(255, 240, 220, 0.08);
  --sh-tag: 0 14px 24px -10px rgba(23, 44, 39, 0.55);
  --sh-swatch: 0 16px 28px -18px rgba(23, 44, 39, 0.6);
  --sh-sheet: 0 28px 50px -30px rgba(23, 44, 39, 0.5);

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  /* Leather grain (layered speckle + sheen) */
  --grain:
    radial-gradient(circle at 30% 40%, var(--c-grain-light) 0 1px, transparent 1.6px),
    radial-gradient(circle at 70% 60%, var(--c-grain-dark) 0 1px, transparent 1.8px),
    radial-gradient(circle at 50% 50%, var(--c-grain-dark) 0 1.4px, transparent 2.2px),
    linear-gradient(135deg, rgba(255, 240, 220, 0.07), transparent 45%, rgba(0, 0, 0, 0.18));
  --grain-size: 7px 7px, 11px 11px, 17px 17px, 100% 100%;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0; min-width: 320px;
  font-family: var(--f-body); font-size: 1.0625rem; line-height: 1.6;
  color: var(--c-text); background: var(--c-sage);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--f-display); font-weight: 400; line-height: 1.05; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; }

:focus-visible { outline: 3px solid var(--c-tan-deep); outline-offset: 3px; }
.on-dark :focus-visible { outline-color: var(--c-thread); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--s-4); top: var(--s-2); z-index: 100;
  padding: var(--s-2) var(--s-4); font-weight: 700; color: var(--c-green);
  text-decoration: none; background: var(--c-thread); border-radius: var(--r-sm);
  transform: translateY(-200%);
}
.skip-link:focus { transform: none; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0.8rem 1.5rem;
  font-weight: 700; line-height: 1.2; text-decoration: none;
  border: 2px solid transparent; border-radius: var(--r-sm);
  cursor: pointer; transition: transform 0.18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); }
.btn-thread { color: var(--c-green-deep); background: var(--c-thread); }
.btn-stitch { color: var(--c-on-dark); background: transparent; border: 2px dashed var(--c-thread); }
.btn-green { color: var(--c-card); background: var(--c-green); }
.btn-outline { color: var(--c-green); background: transparent; border-color: var(--c-green); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  color: var(--c-on-dark); background: var(--c-green);
}
.site-header::after {
  content: ""; display: block; height: 0;
  border-bottom: 2px dashed var(--c-tan);
  opacity: 0.7;
}
.header-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: 4.25rem; }
.brand { display: inline-flex; align-items: center; gap: var(--s-3); text-decoration: none; }
.brand-mark { flex: none; width: 38px; height: 38px; }
.brand-name { font-family: var(--f-display); font-size: 1.35rem; line-height: 1; color: var(--c-on-dark); }
.brand-name small { display: block; margin-top: 3px; font-family: var(--f-body); font-size: 0.8125rem; color: var(--c-on-dark-soft); }

.burger {
  display: grid; place-items: center; width: 46px; height: 46px; padding: 0;
  color: var(--c-on-dark); background: transparent;
  border: 2px dashed var(--c-thread); border-radius: var(--r-sm); cursor: pointer;
}
.burger-box { position: relative; display: block; width: 18px; height: 12px; }
.burger-box span {
  position: absolute; left: 0; width: 100%; height: 2px;
  background: currentColor; transition: transform 0.25s var(--ease), opacity 0.2s;
}
.burger-box span:nth-child(1) { top: 0; }
.burger-box span:nth-child(2) { top: 5px; }
.burger-box span:nth-child(3) { top: 10px; }
.site-header.is-open .burger-box span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-header.is-open .burger-box span:nth-child(2) { opacity: 0; }
.site-header.is-open .burger-box span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.site-nav {
  position: absolute; top: 100%; left: 0; right: 0;
  padding: var(--s-2) var(--gutter) var(--s-5);
  background: var(--c-green-deep);
  opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0s linear 0.25s;
}
.site-header.is-open .site-nav { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.site-nav a {
  display: block; padding: 0.85rem 0;
  font-weight: 600; text-decoration: none;
  border-bottom: 1px solid var(--c-rule-dark);
}
.site-nav a:hover { color: var(--c-thread); }
.site-nav .nav-cta {
  margin-top: var(--s-4); padding: 0.75rem 1rem; text-align: center;
  color: var(--c-green-deep); background: var(--c-thread); border: 0; border-radius: var(--r-sm);
}
.site-nav .nav-cta:hover { color: var(--c-green-deep); }

/* ---------- Hero ---------- */
.hero { padding-block: var(--s-6) var(--s-8); }

.hide {
  position: relative;
  padding: 11rem var(--s-5) var(--s-7);
  color: var(--c-on-dark);
  background-color: var(--c-oxblood);
  background-image: var(--grain);
  background-size: var(--grain-size);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-hide);
  animation: rise 0.8s var(--ease) backwards;
}
.hide::before {
  content: ""; position: absolute; inset: 12px;
  border: 2px dashed var(--c-thread);
  border-radius: calc(var(--r-lg) - 8px);
  opacity: 0.8;
  pointer-events: none;
}
.hero-copy { position: relative; max-width: 40rem; }
.hero-title {
  font-size: clamp(2.5rem, 11vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--c-on-dark);
}
.hero-lead { max-width: 32rem; margin-top: var(--s-5); color: var(--c-on-dark-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.hero-actions .btn { flex: 1 1 auto; }

/* Swing tag (signature element) */
.tag-wrap {
  position: absolute; top: -6px; right: var(--s-5);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center;
  transform-origin: 50% 0;
  animation: swing 2.4s var(--ease) 0.6s backwards;
}
.tag-wrap.is-swinging { animation: swing 2s var(--ease); }
.tag-string {
  width: 2px; height: 34px;
  background: var(--c-thread);
}
.tag-button {
  display: block; padding: 0; background: none; border: 0; cursor: pointer;
  filter: drop-shadow(0 12px 12px rgba(23, 44, 39, 0.4));
}
.tag {
  position: relative;
  display: grid; place-items: center; gap: 2px;
  width: 104px; padding: 2.1rem 0.6rem 1rem;
  text-align: center; color: var(--c-green-deep);
  background: var(--c-tag);
  clip-path: polygon(22% 0, 78% 0, 100% 16%, 100% 100%, 0 100%, 0 16%);
}
.tag::before {
  content: ""; position: absolute; top: 10px; left: 50%;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--c-oxblood-deep);
  box-shadow: 0 0 0 3px var(--c-thread);
  transform: translateX(-50%);
}
.tag-name { font-family: var(--f-display); font-size: 1.05rem; line-height: 1.05; }
.tag-place { font-size: 0.8125rem; font-weight: 600; }

/* ---------- Sections ---------- */
.section { padding-block: var(--s-8); }
.section-head { max-width: 40rem; }
.section-title { font-size: clamp(2.1rem, 7.5vw, 3.6rem); letter-spacing: -0.01em; }
.section-intro { margin-top: var(--s-4); color: var(--c-text-soft); }

/* Shop */
.shop-grid { display: grid; gap: var(--s-6); }
.shop-points { display: grid; gap: var(--s-5); }
.shop-point { padding-left: var(--s-5); border-left: 2px dashed var(--c-tan); }
.shop-point h3 { font-size: 1.5rem; }
.shop-point p { margin-top: var(--s-2); color: var(--c-text-soft); }

/* Swatch book */
.swatches-section { color: var(--c-on-dark); background: var(--c-green); }
.swatches-section .section-intro { color: var(--c-on-dark-soft); }
.swatches { display: grid; gap: var(--s-6); margin-top: var(--s-7); }
.swatch { display: grid; gap: var(--s-4); }
.swatch-chip {
  position: relative;
  height: 150px;
  border-radius: var(--r-md) var(--r-md) var(--r-md) var(--r-md);
  box-shadow: var(--sh-swatch);
}
.swatch-chip::before {
  content: ""; position: absolute; inset: 8px;
  border: 2px dashed var(--c-thread); border-radius: var(--r-sm);
  opacity: 0.75;
}
.swatch-chip::after {
  content: ""; position: absolute; top: 16px; right: 16px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--c-green); box-shadow: 0 0 0 3px var(--c-thread);
}
.chip-full { background-color: var(--c-tan-deep); background-image: var(--grain); background-size: var(--grain-size); }
.chip-top {
  background-color: var(--c-tan);
  background-image:
    radial-gradient(ellipse at 30% 20%, rgba(255, 240, 220, 0.35), transparent 55%),
    radial-gradient(circle at 50% 50%, var(--c-grain-dark) 0 0.8px, transparent 1.2px);
  background-size: 100% 100%, 9px 9px;
}
.chip-suede {
  background-color: var(--c-oxblood);
  background-image:
    repeating-linear-gradient(115deg, rgba(255, 240, 220, 0.06) 0 2px, transparent 2px 5px),
    repeating-linear-gradient(25deg, rgba(0, 0, 0, 0.1) 0 1px, transparent 1px 4px);
}
.chip-nubuck {
  background-color: var(--c-green-deep);
  background-image:
    radial-gradient(ellipse at 70% 30%, rgba(255, 240, 220, 0.12), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255, 240, 220, 0.04) 0 1px, transparent 1px 3px);
}
.swatch h3 { font-size: 1.6rem; color: var(--c-on-dark); }
.swatch p { color: var(--c-on-dark-soft); font-size: 1rem; }

/* Care */
.care-grid { display: grid; gap: var(--s-7); align-items: center; }
.care-list { display: grid; gap: 0; margin-top: var(--s-6); border-top: 1px solid var(--c-rule); }
.care-list li {
  display: grid; grid-template-columns: 22px 1fr; gap: var(--s-3);
  padding-block: var(--s-4);
  border-bottom: 1px solid var(--c-rule);
}
.care-list li::before {
  content: ""; width: 14px; height: 2px; margin-top: 0.8em;
  border-top: 2px dashed var(--c-tan-deep);
}
.care-list strong { font-weight: 700; }
.care-art {
  margin: 0; padding: var(--s-5);
  background: var(--c-card); border-radius: var(--r-lg);
  box-shadow: var(--sh-sheet);
}
.care-art figcaption { margin-top: var(--s-3); font-size: 0.875rem; color: var(--c-text-soft); }

/* Contact */
.contact { background: var(--c-sage-deep); }
.contact-grid { display: grid; gap: var(--s-7); }
.contact-lines { display: grid; gap: var(--s-4); margin-top: var(--s-6); }
.contact-line { display: grid; gap: 2px; }
.contact-line span { font-size: 0.875rem; color: var(--c-text-soft); }
.contact-line a {
  font-weight: 700; overflow-wrap: anywhere;
  text-decoration-style: dashed; text-decoration-color: var(--c-tan-deep);
  text-decoration-thickness: 2px; text-underline-offset: 5px;
}

.form-sheet {
  position: relative;
  padding: var(--s-6) var(--s-5);
  background: var(--c-card); border-radius: var(--r-lg); box-shadow: var(--sh-sheet);
}
.form-sheet::before {
  content: ""; position: absolute; inset: 8px;
  border: 1px dashed var(--c-rule); border-radius: calc(var(--r-lg) - 6px);
  pointer-events: none;
}
.enquiry-form, .form-success { position: relative; }
.enquiry-form[hidden], .form-success[hidden] { display: none; }
.form-title { font-size: 1.8rem; }
.form-grid { display: grid; gap: var(--s-4); margin-top: var(--s-5); }
.field label { display: block; margin-bottom: 0.35rem; font-size: 0.9375rem; font-weight: 700; }
.optional { font-weight: 400; color: var(--c-text-soft); }
.field input, .field select, .field textarea {
  display: block; width: 100%; min-height: 50px; padding: 0.75rem 0.9rem;
  font-size: 1rem; color: var(--c-text); background-color: var(--c-card);
  border: 2px solid var(--c-field); border-radius: var(--r-sm);
}
.field select {
  appearance: none; padding-right: 2.6rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%231F3A33' stroke-width='2.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.95rem center;
}
.field textarea { min-height: 8rem; resize: vertical; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { border-color: var(--c-green); }
.field [aria-invalid="true"] { border-color: var(--c-error); }
.error { display: block; margin-top: 0.3rem; font-size: 0.875rem; font-weight: 700; color: var(--c-error); }
.error:empty { display: none; }
.submit { width: 100%; margin-top: var(--s-5); }
.form-note { margin-top: var(--s-4); font-size: 0.875rem; color: var(--c-text-soft); }
.form-note a { color: var(--c-oxblood); }

.form-success { padding-block: var(--s-3); }
.form-success:focus { outline: none; }
.form-success.is-shown { animation: rise-small 0.45s var(--ease); }
.form-success h3 { font-size: 2rem; }
.form-success p { margin-top: var(--s-3); color: var(--c-text-soft); }
.form-success .btn { margin-top: var(--s-5); }

/* ---------- Footer ---------- */
.site-footer { padding-block: var(--s-7) var(--s-6); color: var(--c-on-dark); background: var(--c-green-deep); border-top: 2px dashed var(--c-tan); }
.footer-top { display: grid; gap: var(--s-6); }
.footer-about p { max-width: 26rem; margin-top: var(--s-3); font-size: 0.9375rem; color: var(--c-on-dark-soft); }
.footer-heading { margin-bottom: var(--s-3); font-family: var(--f-body); font-size: 0.9375rem; font-weight: 700; color: var(--c-on-dark); }
.footer-links { display: grid; gap: var(--s-2); font-size: 0.9375rem; }
.footer-links a { color: var(--c-on-dark-soft); text-decoration: none; overflow-wrap: anywhere; }
.footer-links a:hover { color: var(--c-thread); text-decoration: underline; }

.legal {
  margin-top: var(--s-7); padding-top: var(--s-5);
  font-size: 0.875rem; line-height: 1.7; color: var(--c-on-dark-soft);
  border-top: 1px solid var(--c-rule-dark);
}
.legal-details { display: grid; gap: 0.1rem; font-style: normal; }
.legal-details .legal-name { font-weight: 700; color: var(--c-on-dark); }
.legal a { color: var(--c-on-dark); overflow-wrap: anywhere; }
.legal-bottom { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2) var(--s-5); margin-top: var(--s-4); }
.legal-links { display: flex; flex-wrap: wrap; gap: var(--s-4); }

/* ---------- Legal & 404 pages ---------- */
.page-hero { padding-block: var(--s-6) 0; }
.page-hero .hide { padding: var(--s-8) var(--s-5) var(--s-9); }
.page-hero h1 { position: relative; font-size: clamp(2.3rem, 9vw, 4.4rem); color: var(--c-on-dark); }
.page-meta { position: relative; margin-top: var(--s-4); font-weight: 700; color: var(--c-thread); }

.doc-wrap { padding-inline: var(--gutter); }
.doc {
  position: relative; max-width: 50rem;
  margin: calc(var(--s-8) * -1) auto var(--s-8);
  padding: var(--s-6) var(--s-5);
  background: var(--c-card); border-radius: var(--r-lg); box-shadow: var(--sh-sheet);
}
.doc h2 { margin-top: var(--s-6); font-size: 1.6rem; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc ul { max-width: 68ch; margin-top: var(--s-3); }
.doc ul { padding-left: 1.25rem; list-style: disc; }
.doc li + li { margin-top: var(--s-1); }
.doc li::marker { color: var(--c-tan-deep); }
.doc a { color: var(--c-oxblood); }

.page-hero-404 { padding-block: var(--s-6) var(--s-8); }
.page-hero-404 .hide { min-height: 55vh; }
.page-hero-404 .hero-lead { position: relative; }
.notfound-actions { position: relative; display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.notfound-label { position: relative; margin-bottom: var(--s-4); font-weight: 700; color: var(--c-thread); }

/* ---------- Keyframes ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } }
@keyframes rise-small { from { opacity: 0; transform: translateY(8px); } }
@keyframes swing {
  0% { transform: rotate(18deg); }
  25% { transform: rotate(-11deg); }
  45% { transform: rotate(7deg); }
  65% { transform: rotate(-4deg); }
  82% { transform: rotate(2deg); }
  100% { transform: rotate(0deg); }
}

/* ---------- 480 ---------- */
@media (min-width: 480px) {
  :root { --gutter: 1.5rem; }
  .hero-actions .btn { flex: 0 0 auto; }
  .submit { width: auto; }
  .hide { padding-inline: var(--s-7); }
  .form-sheet { padding: var(--s-7) var(--s-6); }
  .doc { padding: var(--s-7) var(--s-6); }
}

/* ---------- 768 ---------- */
@media (min-width: 768px) {
  :root { --gutter: 2rem; }
  .section { padding-block: var(--s-9); }
  .hide { padding: 12rem var(--s-8) var(--s-8); }
  .tag-wrap { right: var(--s-8); }
  .tag { width: 128px; }
  .tag-name { font-size: 1.25rem; }
  .tag-string { height: 48px; }
  .shop-grid { grid-template-columns: 1fr 1fr; gap: var(--s-8); align-items: start; }
  .swatches { grid-template-columns: 1fr 1fr; }
  .care-grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--s-8); }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .field-full { grid-column: 1 / -1; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
}

/* ---------- 1024 ---------- */
@media (min-width: 1024px) {
  .burger { display: none; }
  .site-nav {
    position: static; padding: 0; background: none;
    opacity: 1; visibility: visible; transform: none; transition: none;
  }
  .site-nav ul { display: flex; align-items: center; gap: var(--s-5); }
  .site-nav a { padding: 0.4rem 0; border: 0; }
  .site-nav .nav-cta { margin-top: 0; padding: 0.6rem 1.2rem; }

  .hide { min-height: 34rem; display: flex; align-items: flex-end; padding-top: var(--s-9); }
  .hero-copy { max-width: 34rem; }
  .tag-wrap { right: 12%; }
  .tag { width: 150px; padding-top: 2.6rem; padding-bottom: 1.3rem; }
  .tag-name { font-size: 1.45rem; }
  .tag-string { height: 70px; }

  .swatches { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 5fr 7fr; gap: var(--s-8); align-items: start; }
  .contact-copy { position: sticky; top: 7rem; }
  .page-hero .hide { min-height: 0; display: block; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .tag-wrap, .tag-wrap.is-swinging { animation: none; }
}