/* ==========================================================================
   NAGOMI MATCHA — design system
   Palette: warm paper + ink + one quiet matcha-green accent
   Type: Shippori Mincho (headings) / Zen Kaku Gothic New (body)
   ========================================================================== */

:root {
  --paper: #f6f3ec;
  --paper-alt: #efeae0;
  --paper-deep: #e7e0d1;
  --ink: #201f1b;
  --ink-soft: #6e6a61;
  --hairline: #dbd5c8;
  --accent: #5c6b3e;
  --accent-dark: #47532f;
  --accent-soft: #eef0e6;

  --font-head: "Shippori Mincho", serif;
  --font-body: "Zen Kaku Gothic New", sans-serif;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  --container: 1180px;
  --gutter: 24px;
  --radius: 2px;
  --dur: 0.25s;
}

@media (min-width: 641px) {
  :root { --gutter: 40px; }
}
@media (min-width: 1025px) {
  :root { --gutter: 64px; }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

h1 { font-size: clamp(2.1rem, 1.4rem + 3.2vw, 3.6rem); font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.3rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem); }

p { color: var(--ink); }
p + p { margin-top: var(--space-3); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.lede {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 62ch;
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

section {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}
@media (min-width: 1025px) {
  section { padding-top: var(--space-8); padding-bottom: var(--space-8); }
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--space-6);
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.divider {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.6rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  transition: background var(--dur) ease, color var(--dur) ease, border-color var(--dur) ease;
  min-height: 48px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 243, 236, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--hairline);
  transition: box-shadow var(--dur) ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 18px -14px rgba(32, 31, 27, 0.35); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}
.logo i { font-size: 1.2rem; color: var(--accent); }
.logo span.sub {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.main-nav a {
  font-size: 0.88rem;
  color: var(--ink-soft);
  transition: color var(--dur) ease;
  position: relative;
}
.main-nav a:hover, .main-nav a:focus-visible { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  padding: 0.5rem;
  margin: -0.5rem;
}
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform var(--dur) ease, opacity var(--dur) 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); }

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    top: 65px;
    height: calc(100% - 65px);
    width: min(78vw, 340px);
    background: var(--paper);
    border-left: 1px solid var(--hairline);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-6) var(--space-5);
    transform: translateX(100%);
    transition: transform var(--dur) ease;
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav a { font-size: 1.05rem; color: var(--ink); }
  .header-actions .btn-primary.desktop-only { display: none; }
}
@media (min-width: 861px) {
  .nav-toggle { display: none; }
  .main-nav .mobile-only { display: none; }
}
@media (max-width: 860px) {
  .header-actions .desktop-only { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 861px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: var(--space-7); }
}
.hero-copy h1 { margin-bottom: var(--space-4); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.hero-trust {
  margin-top: var(--space-5);
  font-size: 0.82rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 0.4rem; }
.hero-trust i { color: var(--accent); }

.hero-visual {
  position: relative;
  background: var(--paper-alt);
  border: 1px solid var(--hairline);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img { max-height: 460px; width: auto; margin: 0 auto; }
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid var(--hairline);
  pointer-events: none;
}

/* ---------- Product grid ---------- */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (min-width: 641px) {
  .grid-cards { grid-template-columns: repeat(4, 1fr); }
}
.grid-card {
  border: 1px solid var(--hairline);
  background: var(--paper-alt);
  transition: border-color var(--dur) ease, transform var(--dur) ease;
  display: block;
}
.grid-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.grid-card figure { aspect-ratio: 1 / 1; overflow: hidden; border-bottom: 1px solid var(--hairline); background: var(--paper); }
.grid-card img { width: 100%; height: 100%; object-fit: cover; }
.grid-card figcaption {
  padding: var(--space-3);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.grid-intro { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-6); }

/* ---------- Product detail ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 861px) {
  .detail-grid { grid-template-columns: 0.9fr 1.1fr; gap: var(--space-7); align-items: start; }
}

.gallery-main {
  border: 1px solid var(--hairline);
  background: var(--paper-alt);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.gallery-main img { max-height: 90%; object-fit: contain; }
.gallery-thumbs { display: flex; gap: var(--space-2); }
.gallery-thumbs button {
  width: 64px;
  height: 64px;
  border: 1px solid var(--hairline);
  background: var(--paper-alt);
  padding: 4px;
  flex-shrink: 0;
}
.gallery-thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs button.is-active { border-color: var(--accent); }

.product-title { margin-bottom: var(--space-2); }
.product-tag { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: var(--space-4); }

.spec-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: var(--space-4) 0 var(--space-5);
  border-top: 1px solid var(--hairline);
}
.spec-list div {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: var(--space-3);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.92rem;
}
.spec-list dt { color: var(--ink-soft); }
.spec-list dd { margin: 0; }

.prep-block {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 641px) {
  .prep-block { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
}
.prep-steps { display: flex; flex-direction: column; gap: var(--space-4); }
.prep-step { display: flex; gap: var(--space-3); }
.prep-step .num {
  font-family: var(--font-head);
  font-weight: 800;
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
  width: 2rem;
}
.prep-visual { border: 1px solid var(--hairline); aspect-ratio: 4/3; overflow: hidden; }
.prep-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Benefits ---------- */
.benefit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 641px) {
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1025px) {
  .benefit-grid { grid-template-columns: repeat(4, 1fr); }
}
.benefit-card {
  padding: var(--space-5);
  border: 1px solid var(--hairline);
  background: var(--paper);
}
.benefit-card i { font-size: 1.6rem; color: var(--accent); margin-bottom: var(--space-3); display: block; }
.benefit-card h3 { margin-bottom: var(--space-2); }
.benefit-card p { color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- Testimonials ---------- */
.testi-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 861px) {
  .testi-grid { grid-template-columns: repeat(3, 1fr); }
}
.testi-card {
  padding: var(--space-5);
  background: var(--paper-alt);
  border: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.testi-stars { color: var(--accent); font-size: 0.85rem; letter-spacing: 0.2em; }
.testi-quote { font-size: 0.98rem; }
.testi-name { font-size: 0.85rem; color: var(--ink-soft); border-top: 1px solid var(--hairline); padding-top: var(--space-3); }
.testi-name strong { color: var(--ink); font-weight: 700; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--hairline); }
.faq-item { border-bottom: 1px solid var(--hairline); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  text-align: left;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.02rem;
}
.faq-q i { color: var(--accent); transition: transform var(--dur) ease; flex-shrink: 0; }
.faq-item.is-open .faq-q i { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur) ease;
}
.faq-a p { color: var(--ink-soft); padding-bottom: var(--space-4); max-width: 68ch; }
.faq-item.is-open .faq-a { max-height: 240px; }

/* ---------- Contact / form ---------- */
.contact-section {
  background: var(--paper-alt);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  position: relative;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 861px) {
  .contact-grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-7); }
}

.form-row { margin-bottom: var(--space-4); }
.form-row label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--hairline);
  background: var(--paper);
  padding: 0.85rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  min-height: 48px;
  transition: border-color var(--dur) ease;
}
.form-row textarea { min-height: 130px; resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--accent);
}
.form-two { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 641px) {
  .form-two { grid-template-columns: 1fr 1fr; }
}

.form-success {
  display: none;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  padding: var(--space-5);
}
.form-success.is-visible { display: block; }
.form-success i { color: var(--accent); font-size: 1.4rem; margin-bottom: var(--space-2); display: block; }
#enquiry-form.is-hidden { display: none; }

.contact-info { display: flex; flex-direction: column; gap: var(--space-5); }
.contact-info-item { display: flex; gap: var(--space-3); align-items: flex-start; }
.contact-info-item i { color: var(--accent); font-size: 1.2rem; margin-top: 0.15rem; }
.contact-info-item h4 { margin-bottom: 0.2rem; font-size: 0.95rem; }
.contact-info-item p { color: var(--ink-soft); font-size: 0.9rem; }
.contact-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-4);
  margin-top: var(--space-2);
}

/* ---------- Footer ---------- */
.site-footer {
  padding-top: var(--space-7);
  padding-bottom: var(--space-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-6);
}
@media (min-width: 641px) {
  .footer-grid { grid-template-columns: 1.3fr 0.7fr 0.7fr 1fr; }
}
.footer-brand .logo { margin-bottom: var(--space-3); }
.footer-brand p { color: var(--ink-soft); font-size: 0.9rem; max-width: 32ch; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-3);
  font-weight: 700;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col a { font-size: 0.9rem; color: var(--ink); transition: color var(--dur) ease; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

/* ---------- Legal pages ---------- */
.legal-header {
  border-bottom: 1px solid var(--hairline);
  padding: var(--space-4) 0;
}
.legal-header .container { display: flex; align-items: center; justify-content: space-between; }
.legal-back { font-size: 0.85rem; color: var(--ink-soft); display: inline-flex; align-items: center; gap: 0.4rem; }
.legal-hero { padding-top: var(--space-6); padding-bottom: var(--space-3); }
.legal-updated { color: var(--ink-soft); font-size: 0.85rem; margin-top: var(--space-2); }
.legal-body { max-width: 78ch; }
.legal-body h2 { margin-top: var(--space-6); margin-bottom: var(--space-3); }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p, .legal-body li { color: var(--ink-soft); margin-bottom: var(--space-3); }
.legal-body ul { list-style: disc; padding-left: 1.3rem; }
.legal-body ul li { margin-bottom: var(--space-2); }
.legal-body strong { color: var(--ink); }
.legal-body a { color: var(--accent); text-decoration: underline; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.bg-texture {
  background-image: linear-gradient(rgba(246,243,236,0.9), rgba(246,243,236,0.9)), url("../images/texture-paper.jpg");
  background-size: cover;
  background-position: center;
}