/* GAIJIN GUITARS LTD — concept "Sunburst" */
:root {
  --c-lacquer: #141313;
  --c-lacquer-2: #201E1D;
  --c-amber: #E08A2B;
  --c-cherry: #9E2A2B;
  --c-vermilion: #D8432F;
  --c-cream: #F3EBDD;
  --c-tort: #5A3A22;
  --c-paper: #FBF7F0;
  --c-muted: #5B5048;
  --c-line: rgba(20, 19, 19, 0.14);
  --c-error: #9E2A2B;

  --f-display: "Shippori Mincho B1", "Hiragino Mincho ProN", Georgia, serif;
  --f-body: "Outfit", system-ui, -apple-system, "Segoe UI", sans-serif;

  --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: 4.5rem;
  --s-9: 6.5rem;

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

  --sh-soft: 0 14px 30px -20px rgba(20, 19, 19, 0.5);
  --sh-guitar: 0 40px 70px -30px rgba(0, 0, 0, 0.8);

  --wrap: 1180px;
  --gutter: 1rem;
  --header-h: 64px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--f-body); font-size: 1.0625rem; line-height: 1.65; color: var(--c-lacquer); background: var(--c-paper); overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: var(--c-cherry); text-underline-offset: 3px; }
a:hover { color: var(--c-lacquer); }
:focus-visible { outline: 3px solid var(--c-amber); outline-offset: 3px; border-radius: var(--r-sm); }

h1, h2, h3 { font-family: var(--f-display); font-weight: 800; line-height: 1.08; letter-spacing: -0.01em; margin: 0 0 var(--s-4); }
h1 { font-size: clamp(2.5rem, 9vw, 5.2rem); }
h2 { font-size: clamp(1.9rem, 5.5vw, 3.2rem); }
h3 { font-size: 1.4rem; }
p { margin: 0 0 var(--s-4); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: var(--s-4); top: -100px; z-index: 100; background: var(--c-amber); color: var(--c-lacquer); padding: var(--s-2) var(--s-4); font-weight: 600; }
.skip-link:focus { top: var(--s-4); }

.hanko {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--c-cherry); margin-bottom: var(--s-3);
}
.hanko::before { content: ""; width: 14px; height: 14px; border-radius: 3px; background: var(--c-vermilion); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0 var(--s-5);
  border-radius: var(--r-pill); border: 2px solid transparent;
  font-family: var(--f-body); font-weight: 600; font-size: 1rem; letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer;
  transition: transform 0.25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--amber { background: var(--c-amber); color: var(--c-lacquer); }
.btn--amber:hover { color: var(--c-lacquer); }
.btn--ghost { border-color: var(--c-cream); color: var(--c-cream); }
.btn--ghost:hover { color: var(--c-cream); }
.btn--cherry { background: var(--c-cherry); color: #fff; }
.btn--cherry:hover { background: #7F1F20; color: #fff; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--c-lacquer); color: var(--c-cream); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: var(--s-3); color: var(--c-cream); text-decoration: none; }
.brand:hover { color: var(--c-cream); }
.brand__mark { width: 36px; height: 36px; flex-shrink: 0; }
.brand__name { font-family: var(--f-display); font-weight: 800; font-size: 1.25rem; line-height: 1; }
.brand__name small { display: block; margin-top: 4px; font-family: var(--f-body); font-weight: 500; font-size: 0.68rem; letter-spacing: 0.2em; color: #CFC5B6; }

.nav-toggle { display: inline-flex; flex-direction: column; justify-content: center; gap: 5px; width: 46px; height: 46px; padding: 0 11px; border: 1px solid rgba(243, 235, 221, 0.3); border-radius: var(--r-md); background: transparent; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--c-cream); transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  position: fixed; inset: var(--header-h) 0 auto 0;
  background: var(--c-lacquer); padding: var(--s-4) var(--gutter) var(--s-6);
  box-shadow: var(--sh-soft);
  opacity: 0; transform: translateY(-12px); visibility: hidden; pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}
.site-nav.is-open { opacity: 1; transform: none; visibility: visible; pointer-events: auto; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav a { display: block; padding: var(--s-3) 0; font-weight: 600; color: var(--c-cream); text-decoration: none; border-bottom: 1px solid rgba(243, 235, 221, 0.12); }
.site-nav a:hover { color: var(--c-amber); }
.site-nav .nav-cta { margin-top: var(--s-4); }
.site-nav .nav-cta a { border: 0; text-align: center; background: var(--c-amber); color: var(--c-lacquer); border-radius: var(--r-pill); }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  color: var(--c-cream);
  background:
    radial-gradient(60% 70% at 78% 50%, rgba(224, 138, 43, 0.22), transparent 70%),
    var(--c-lacquer);
  padding: var(--s-7) 0 var(--s-8);
}
.hero__grid { position: relative; display: grid; gap: var(--s-6); align-items: center; }
.hero h1 em { font-style: normal; color: var(--c-amber); }
.hero__lead { font-size: 1.15rem; color: #DCD3C5; max-width: 33rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-5); }
.hero .hanko { color: var(--c-amber); }
.kana {
  position: absolute; right: -0.05em; top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--f-display); font-weight: 800;
  font-size: clamp(5rem, 22vw, 12rem); line-height: 1;
  color: rgba(243, 235, 221, 0.06);
  pointer-events: none; user-select: none;
}

/* CSS guitar */
.guitar { position: relative; width: min(84vw, 400px); aspect-ratio: 4 / 5; margin: 0 auto; }
.guitar__neck {
  position: absolute; left: 50%; top: 0; width: 13%; height: 46%; margin-left: -6.5%;
  background:
    repeating-linear-gradient(180deg, transparent 0 13%, #CFC5B6 13% 13.8%),
    linear-gradient(90deg, #3A2414, #5A3A22 50%, #3A2414);
  border-radius: 4px 4px 0 0;
}
.guitar__neck::before {
  content: ""; position: absolute; left: 50%; top: 20%; width: 18%; aspect-ratio: 1; margin-left: -9%;
  border-radius: 50%; background: var(--c-cream);
  box-shadow: 0 34px 0 var(--c-cream), 0 68px 0 var(--c-cream);
}
.guitar__body { position: absolute; left: 4%; right: 4%; bottom: 0; height: 62%; filter: drop-shadow(0 30px 30px rgba(0, 0, 0, 0.6)); }
.guitar__shape { position: absolute; inset: 0; width: 100%; height: 100%; }
.pickup {
  position: absolute; left: 50%; width: 36%; height: 8%; margin-left: -18%; z-index: 1;
  border-radius: 6px;
  background: repeating-linear-gradient(90deg, #2A2827 0 10%, #8B8580 10% 14%);
  box-shadow: inset 0 0 0 3px #0D0C0C;
}
.pickup--neck { top: 40%; }
.pickup--bridge { top: 56%; }
.guitar__bridge { z-index: 1; position: absolute; left: 50%; bottom: 20%; width: 34%; height: 5%; margin-left: -17%; background: #B9B2AA; border-radius: 3px; }
.guitar__knob { z-index: 1; position: absolute; width: 8%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #F3EBDD, #9E958B); }
.guitar__knob--1 { right: 18%; bottom: 26%; }
.guitar__knob--2 { right: 24%; bottom: 14%; }
.guitar__knob--3 { right: 32%; bottom: 6%; }
.strings { position: absolute; left: 50%; top: 2%; bottom: 20%; width: 10%; margin-left: -5%; display: flex; justify-content: space-between; }
.string {
  width: 10px; height: 100%; margin: 0 -4px;
  display: flex; justify-content: center;
  cursor: pointer;
  background: none; border: 0; padding: 0;
}
.string::before { content: ""; width: 1.5px; height: 100%; background: linear-gradient(180deg, #EDE6DC, #BDB5AA); }
.string:nth-child(-n+3)::before { width: 2.2px; }
.string.is-plucked::before { animation: twang 0.5s linear; }
@keyframes twang {
  0% { transform: translateX(0); }
  10% { transform: translateX(2.5px); }
  20% { transform: translateX(-2.5px); }
  30% { transform: translateX(2px); }
  40% { transform: translateX(-2px); }
  55% { transform: translateX(1.4px); }
  70% { transform: translateX(-1px); }
  85% { transform: translateX(0.5px); }
  100% { transform: translateX(0); }
}
.guitar__hint { position: absolute; left: 0; right: 0; bottom: -2.2rem; text-align: center; font-size: 0.85rem; color: #CFC5B6; }

/* Sections */
.section { padding: var(--s-8) 0; }
.section--cream { background: var(--c-cream); }
.section--lacquer { background: var(--c-lacquer); color: var(--c-cream); }
.section--lacquer .hanko { color: var(--c-amber); }
.section__head { max-width: 46rem; margin-bottom: var(--s-6); }
.section__head p { color: var(--c-muted); font-size: 1.08rem; }
.section--lacquer .section__head p { color: #DCD3C5; }

/* Brands */
.brands { display: grid; gap: var(--s-4); }
.brand-card {
  position: relative; overflow: hidden;
  padding: var(--s-6) var(--s-5) var(--s-5);
  border-radius: var(--r-lg);
  min-height: 200px;
  display: flex; flex-direction: column; justify-content: flex-end;
  color: var(--c-cream);
  box-shadow: var(--sh-soft);
  transition: transform 0.3s var(--ease);
}
.brand-card:hover { transform: translateY(-4px); }
.brand-card::before {
  content: ""; position: absolute; width: 220px; aspect-ratio: 1; right: -60px; top: -70px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0 20%, transparent 21% 40%, rgba(255, 255, 255, 0.12) 41% 44%, transparent 45%);
}
.brand-card h3 { font-size: 1.9rem; position: relative; }
.brand-card p { margin: 0; position: relative; color: rgba(243, 235, 221, 0.9); }
.brand-card--1 { background: radial-gradient(ellipse at 30% 110%, var(--c-amber), #7A3412 55%, var(--c-lacquer)); }
.brand-card--2 { background: radial-gradient(ellipse at 30% 110%, #C9453A, var(--c-cherry) 50%, #3A0E0E); }
.brand-card--3 { background: repeating-linear-gradient(115deg, #2B201A 0 6px, #3A2A20 6px 12px), var(--c-tort); }
.brand-card--4 { background: radial-gradient(ellipse at 70% 110%, #4B6A5E, #23352E 55%, var(--c-lacquer)); }
.brands-note { margin-top: var(--s-5); font-size: 0.92rem; color: var(--c-muted); max-width: 46rem; }

/* Sourcing steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--s-4); counter-reset: st; }
.steps li { position: relative; padding: var(--s-5) var(--s-5) var(--s-5) calc(var(--s-5) + 56px); border: 1px solid rgba(243, 235, 221, 0.16); border-radius: var(--r-lg); counter-increment: st; }
.steps li::before {
  content: counter(st);
  position: absolute; left: var(--s-5); top: var(--s-5);
  width: 42px; height: 42px; border-radius: 6px;
  display: grid; place-items: center;
  font-family: var(--f-display); font-weight: 800; font-size: 1.2rem;
  background: var(--c-vermilion); color: #fff;
}
.steps h3 { color: var(--c-cream); }
.steps p { margin: 0; color: #DCD3C5; }

/* Promise */
.promise { display: grid; gap: var(--s-6); align-items: center; }
.promise__art {
  min-height: 280px; border-radius: var(--r-lg); position: relative; overflow: hidden;
  background:
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(20, 19, 19, 0.08) 46px 48px),
    linear-gradient(180deg, #E9DCC6, var(--c-cream));
}
.promise__tag {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%) rotate(-6deg);
  width: 62%; padding: var(--s-5);
  background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--r-md);
  box-shadow: var(--sh-soft);
  font-family: var(--f-display); font-weight: 800; font-size: clamp(1.1rem, 4vw, 1.5rem); line-height: 1.2; text-align: center;
}
.promise__tag::before { content: ""; position: absolute; left: 50%; top: -12px; width: 18px; height: 18px; margin-left: -9px; border-radius: 50%; background: var(--c-vermilion); }
.check-list { list-style: none; padding: 0; margin: var(--s-4) 0 0; display: grid; gap: var(--s-3); }
.check-list li { position: relative; padding-left: var(--s-6); }
.check-list li::before { content: ""; position: absolute; left: 0; top: 0.45em; width: 14px; height: 14px; border-radius: 3px; background: var(--c-vermilion); }

/* Contact */
.contact { display: grid; gap: var(--s-6); }
.contact__info dl { margin: 0; display: grid; gap: var(--s-4); }
.contact__info dt { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-muted); }
.contact__info dd { margin: 0; word-break: break-word; }
.form { background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--r-lg); padding: var(--s-5); box-shadow: var(--sh-soft); }
.form__row { display: grid; gap: 0 var(--s-4); }
.field { display: grid; gap: var(--s-1); margin-bottom: var(--s-3); }
.field label { font-weight: 600; font-size: 0.95rem; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: var(--s-3) var(--s-4); font: inherit; color: var(--c-lacquer); background: #fff; border: 1.5px solid rgba(20, 19, 19, 0.28); border-radius: var(--r-md); }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-cherry); box-shadow: 0 0 0 3px rgba(224, 138, 43, 0.45); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-color: var(--c-error); }
.field__error { min-height: 1.2em; font-size: 0.85rem; color: var(--c-error); }
.field--check { grid-template-columns: auto 1fr; align-items: start; gap: var(--s-3); }
.field--check input { width: 22px; height: 22px; min-height: 0; margin-top: 2px; accent-color: var(--c-cherry); }
.field--check label { font-weight: 400; font-size: 0.95rem; color: var(--c-muted); }
.field--check .field__error { grid-column: 1 / -1; }
.form__success { display: none; padding: var(--s-5); border-radius: var(--r-lg); background: var(--c-paper); border-left: 6px solid var(--c-amber); }
.form__success.is-visible { display: block; }

/* Legal / 404 */
.page-hero { padding: var(--s-7) 0 var(--s-5); background: var(--c-cream); }
.page-hero h1 { font-size: clamp(2.2rem, 7vw, 3.6rem); margin: 0; }
.legal { padding: var(--s-7) 0 var(--s-8); }
.legal__body { max-width: 46rem; }
.legal__body h2 { font-size: 1.5rem; margin-top: var(--s-6); }
.legal__body ul { padding-left: var(--s-5); }
.legal__updated { color: var(--c-muted); }
.notfound { position: relative; overflow: hidden; padding: var(--s-9) 0; text-align: center; background: var(--c-lacquer); color: var(--c-cream); }
.notfound p { color: #DCD3C5; }
.notfound .hanko { color: var(--c-amber); }
.notfound .kana { right: auto; left: 50%; transform: translate(-50%, -50%); }
.notfound .wrap { position: relative; }

/* Footer */
.site-footer { background: var(--c-lacquer); color: #DCD3C5; padding: var(--s-7) 0 var(--s-5); border-top: 4px solid var(--c-amber); }
.site-footer a { color: var(--c-cream); }
.site-footer a:hover { color: var(--c-amber); }
.footer__grid { display: grid; gap: var(--s-6); }
.footer__brand p { color: #CFC5B6; max-width: 24rem; margin-top: var(--s-4); }
.footer__nav h2 { font-family: var(--f-body); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-amber); margin-bottom: var(--s-3); }
.footer__nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-2); }
.footer__nav a { text-decoration: none; }
.footer__legal { margin-top: var(--s-6); padding-top: var(--s-5); border-top: 1px solid rgba(243, 235, 221, 0.15); font-size: 0.875rem; line-height: 1.7; color: #DCD3C5; }
.footer__legal p { margin: 0 0 var(--s-2); }
.footer__legal-links { display: flex; flex-wrap: wrap; gap: var(--s-4); margin-top: var(--s-3); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in, .no-js .reveal { opacity: 1; transform: none; }

/* Breakpoints */
@media (min-width: 480px) {
  :root { --gutter: 1.5rem; }
  .form__row { grid-template-columns: 1fr 1fr; }
  .brands { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 768px) {
  :root { --header-h: 74px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .promise { grid-template-columns: 1fr 1fr; gap: var(--s-8); }
  .promise__art { min-height: 380px; }
  .contact { grid-template-columns: 0.8fr 1.2fr; }
  .form { padding: var(--s-6); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .site-nav { position: static; opacity: 1; transform: none; visibility: visible; pointer-events: auto; background: transparent; padding: 0; box-shadow: none; }
  .site-nav ul { display: flex; align-items: center; gap: var(--s-5); }
  .site-nav a { border: 0; padding: var(--s-2) 0; }
  .site-nav .nav-cta { margin: 0; }
  .site-nav .nav-cta a { padding: var(--s-2) var(--s-5); }
  .hero { padding: var(--s-9) 0; }
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; }
  .brands { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps li { padding: calc(var(--s-5) + 58px) var(--s-5) var(--s-5); }
  .section { padding: var(--s-9) 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .string.is-plucked::before { animation: none; }
  .reveal { opacity: 1; transform: none; }
}