/* =========================================================
   DINOVIA — Home redesign (preview)
   Direction: the website as an extension of the carton.
   White face, navy base band, a single gold hairline,
   and the carton's dotted particle wave as the hero field.
   ========================================================= */

:root {
  --carton: #ffffff;        /* carton face */
  --porcelain: #eef1f5;     /* cool secondary surface */
  --navy: #102555;          /* carton base band */
  --navy-deep: #0b1730;     /* utility bar, footer */
  --ink: #18223a;           /* body text */
  --slate: #5a6478;         /* secondary text */
  --hair: #dde2ea;          /* rules */
  --gold: #a8823f;          /* foil #C8A15A, deepened for text contrast */          /* carton foil */
  --gold-soft: #c8a15a;
  --warn: #8a2a2a;

  --display: "Montserrat", "Anuphan", "Segoe UI", sans-serif;
  --body: "Inter", "IBM Plex Sans Thai", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;

  --wrap: 1200px;
  --gutter: clamp(16px, 5vw, 56px);
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--carton);
  color: var(--ink);
  font: 400 16px/1.65 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
p { margin: 0 0 1em; }
a { color: var(--navy); }
h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--navy);
  margin: 0 0 .5em;
  line-height: 1.12;
  letter-spacing: -0.015em;
}
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: 0; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.container { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--navy); color: #fff; padding: 10px 16px; }
.skip-link:focus { top: 12px; }

.eyebrow {
  font: 600 .74rem/1.2 var(--display);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.1em;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font: 600 .95rem/1 var(--display);
  letter-spacing: .02em;
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn--primary { background: var(--navy); color: #fff; }
.btn--primary:hover { background: var(--navy-deep); }
.btn--quiet { color: var(--navy); padding-inline: .25rem; }
.btn--quiet:hover { color: var(--gold); }
.btn--gold { background: var(--gold); color: #fff; }
.btn--gold:hover { background: #9a763f; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.site-header.is-scrolled { border-bottom-color: var(--hair); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand__mark { flex: none; width: 40px; height: auto; }
.brand__type { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font: 700 1.3rem/1 var(--display); letter-spacing: .2em; color: var(--navy); }
.brand__tag { font: 500 .62rem/1 var(--display); letter-spacing: .24em; text-transform: uppercase; color: var(--gold); margin-top: 6px; }

.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-menu a { display: block; padding: 10px 14px; font: 500 .92rem/1 var(--display); color: var(--ink); text-decoration: none; position: relative; }
.nav-menu a:not(.nav-menu__cta)::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 1px; background: var(--gold); transform: scaleX(0); transition: transform .25s; }
.nav-menu a:hover::after, .nav-menu a.is-active::after { transform: scaleX(1); }
.nav-menu__cta { margin-left: 12px; border: 1px solid var(--navy); border-radius: var(--radius); color: var(--navy) !important; }
.nav-menu__cta:hover { background: var(--navy); color: #fff !important; }
.nav-toggle { display: none; }
.primary-nav { display: flex; align-items: center; gap: 16px; }

/* Language switch */
.lang-switch { display: inline-flex; border: 1px solid var(--hair); border-radius: 999px; padding: 3px; }
.lang-switch a {
  font: 600 .75rem/1 var(--display); letter-spacing: .08em; color: var(--slate);
  text-decoration: none; padding: 7px 11px; border-radius: 999px; transition: background-color .2s, color .2s;
}
.lang-switch a:hover { color: var(--navy); }
.lang-switch a[aria-current="true"] { background: var(--navy); color: #fff; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, #f6f8fb 100%); }
.hero__field { position: absolute; inset: 0 0 auto auto; width: 70%; height: 100%; pointer-events: none; }
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
  padding-block: clamp(48px, 7vw, 96px) clamp(40px, 5vw, 72px);
}
.hero__title {
  font: 800 clamp(2.4rem, 5.2vw, 4.6rem)/1 var(--display);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 0;
}
.hero__rule { display: block; width: min(320px, 70%); height: 2px; background: var(--gold); margin: 22px 0 16px; transform-origin: left; }
.hero__strength { font: 600 clamp(2rem, 4vw, 3rem)/1 var(--display); color: var(--gold); margin: 0 0 18px; }
.hero__form { font: 500 1rem/1.5 var(--display); color: var(--navy); margin-bottom: 22px; }
.hero__lede { color: var(--slate); max-width: 46ch; margin-bottom: 30px; }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }

.hero__product { margin: 0 calc(var(--gutter) * -0.6) 0 0; position: relative; }
.hero__product img { width: 100%; height: auto; filter: drop-shadow(0 28px 36px rgba(16,37,85,.16)) drop-shadow(0 6px 10px rgba(16,37,85,.08)); }
@media (min-width: 981px) { .hero__product img { width: 114%; max-width: none; margin-left: -7%; } }
.hero__contents { font: 500 .8rem/1.4 var(--mono); color: var(--slate); letter-spacing: .02em; margin: -8px 0 22px; }

.hero__band { position: relative; background: var(--navy); border-top: 3px solid var(--gold); color: #fff; }
.band-list { list-style: none; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); padding-block: 26px; }
.band-list li { display: flex; align-items: center; gap: 14px; padding: 4px 20px; }
.band-list li + li { border-left: 1px solid rgba(255,255,255,.18); }
.band-list li:first-child { padding-left: 0; }
.band-list svg { width: 34px; height: 34px; flex: none; fill: none; stroke: var(--gold-soft); stroke-width: 1.4; }
.band-list span { font-size: .82rem; color: #b9c3d6; line-height: 1.35; }
.band-list strong { display: block; font: 600 .95rem/1.3 var(--display); color: #fff; }

/* ---------- Sections ---------- */
.section { padding-block: clamp(64px, 9vw, 120px); }
.section--porcelain { background: var(--porcelain); }
.section--navy { background: var(--navy); color: #d3dae7; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__lede { color: var(--slate); font-size: 1.06rem; }
.section-head--light h2 { color: #fff; }
.section-head--light .section-head__lede { color: #b9c3d6; }
.fine-print { font-size: .82rem; color: var(--slate); }

/* Product: label sheet */
.split { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.split__aside { position: sticky; top: 110px; margin-bottom: 0; }
.label-sheet {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid var(--hair); border-top: 3px solid var(--navy); border-radius: var(--radius);
  background: #fff;
}
.label-sheet__group { padding: 28px 30px; }
.label-sheet__group + .label-sheet__group { border-left: 1px solid var(--hair); }
.label-sheet__group--wide { grid-column: 1 / -1; border-left: 0 !important; border-top: 1px solid var(--hair); background: #fafbfc; }
.label-sheet h3 { font: 600 .74rem/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.spec { margin: 0; }
.spec div { display: grid; grid-template-columns: 1fr 1.2fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--hair); font-size: .93rem; }
.spec div:last-child { border-bottom: 0; }
.spec dt { color: var(--slate); }
.spec dd { margin: 0; color: var(--navy); font-weight: 500; }
.spec-list { margin: 0; padding: 0; list-style: none; columns: 2; column-gap: 32px; font-size: .93rem; }
.spec-list li { break-inside: avoid; padding: 6px 0 6px 18px; position: relative; }
.spec-list li::before { content: ""; position: absolute; left: 0; top: 15px; width: 8px; height: 1px; background: var(--gold); }

/* Science: two receptors converge into one effect */
.moa {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px minmax(0, 1fr);
  grid-template-areas: "gip join result" "glp join result";
  gap: 20px 0;
  max-width: 980px; margin-inline: auto;
}
.moa-card { background: #fff; border: 1px solid var(--hair); border-radius: var(--radius); padding: 26px 28px; }
.moa-card p:last-child { margin: 0; color: var(--slate); font-size: .93rem; }
.moa-card h3 { font-size: 1.6rem; font-weight: 800; }
.moa-card__tag { font: 500 .72rem/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--gold); margin-bottom: 12px !important; }
.moa-card--gip { grid-area: gip; }
.moa-card--glp { grid-area: glp; }
.moa-card--result { grid-area: result; align-self: center; background: var(--navy); border-color: var(--navy); }
.moa-card--result h3 { color: #fff; }
.moa-card--result p:last-child { color: #c3cbdb; }
.moa__join { grid-area: join; }
.moa__join svg { width: 100%; height: 100%; overflow: visible; }
.moa__join path { fill: none; stroke: var(--gold); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.moa__join circle { fill: var(--gold); }
.disclaimer-note { max-width: 720px; margin: 40px auto 0; text-align: center; font-size: .82rem; color: var(--slate); }

/* Quality */
.quality { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.quality-copy p:not(.eyebrow) { color: var(--slate); }
.quality-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--navy); }
.quality-list li { display: grid; grid-template-columns: 200px 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--hair); }
.quality-list strong { font: 600 1rem/1.4 var(--display); color: var(--navy); }
.quality-list span { color: var(--slate); font-size: .95rem; }

/* Authenticity: the form is the sticker */
.verify { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.verify .section-head { margin-bottom: 0; }
.verify-steps { counter-reset: step; list-style: none; padding: 0; margin: 28px 0 0; }
.verify-steps li { counter-increment: step; display: flex; gap: 14px; align-items: baseline; padding: 10px 0; border-top: 1px solid rgba(255,255,255,.12); color: #d3dae7; }
.verify-steps li::before { content: counter(step); font: 500 .8rem/1 var(--mono); color: var(--gold-soft); width: 18px; flex: none; }

.sticker {
  position: relative;
  background: #fff; color: var(--ink);
  border-radius: 6px;
  padding: 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.sticker::before {           /* perforated edge, like a die-cut label */
  content: ""; position: absolute; inset: 8px; border: 1px dashed var(--hair); border-radius: 3px; pointer-events: none;
}
.sticker > * { position: relative; }
.sticker__head { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 16px; margin-bottom: 20px; border-bottom: 2px solid var(--gold); }
.sticker__brand { font: 700 1rem/1 var(--display); letter-spacing: .2em; color: var(--navy); }
.sticker__kind { font: 500 .7rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--slate); }
.field { display: block; margin-bottom: 16px; }
.field__label { display: block; font: 500 .72rem/1 var(--mono); letter-spacing: .16em; color: var(--slate); margin-bottom: 8px; }
.field input {
  width: 100%; padding: 14px 14px; font: 500 1.1rem/1 var(--mono); letter-spacing: .06em; color: var(--navy);
  background: #f7f8fa; border: 1px solid var(--hair); border-radius: var(--radius);
}
.field input::placeholder { color: #a9b0bd; }
.field input:focus { outline: none; border-color: var(--navy); background: #fff; box-shadow: 0 0 0 3px rgba(176,138,78,.25); }
.sticker .btn { margin-top: 6px; }
.sticker__hint { margin: 16px 0 0; font-size: .8rem; color: var(--slate); line-height: 1.5; }

/* Safety */
.isi { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--hair); border-radius: var(--radius); }
.isi__block { padding: 28px 30px; }
.isi__block + .isi__block:not(:nth-child(2)) { border-left: 1px solid var(--hair); }
.isi__block p { margin: 0; color: var(--slate); font-size: .94rem; }
.isi__block--warn { grid-column: 1 / -1; border-left: 4px solid var(--warn); border-bottom: 1px solid var(--hair); background: #fbf8f7; }
.isi__block--warn h3 { color: var(--warn); }
.placeholder-flag { margin-top: 24px; font-size: .8rem; color: var(--slate); font-style: italic; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-deep); color: #9aa5ba; padding: 72px 0 120px; font-size: .9rem; }
.site-footer a { color: #c6cedd; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer__top { display: grid; grid-template-columns: 1.2fr 2fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer__brand .brand__name { color: #fff; display: block; }
.site-footer__brand .brand__tag { display: block; margin: 8px 0 18px; }
.site-footer__nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.site-footer h4 { font: 600 .72rem/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer__legal { padding-top: 28px; font-size: .8rem; }
.site-footer__copy a { margin-left: 6px; }

/* ---------- ISI dock ---------- */
.isi-dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; background: #fff; border-top: 3px solid var(--gold); box-shadow: 0 -8px 30px rgba(16,37,85,.12); transition: transform .35s ease; }
.isi-dock.is-hidden { transform: translateY(110%); }
.isi-dock__inner { display: flex; align-items: center; gap: 16px; padding-block: 14px; }
.isi-dock p { margin: 0; font-size: .86rem; color: var(--ink); }
.isi-dock strong { color: var(--warn); }
.isi-dock__close { margin-left: auto; flex: none; width: 36px; height: 36px; border: 1px solid var(--hair); background: #fff; border-radius: 50%; font-size: 1.2rem; cursor: pointer; color: var(--slate); }

/* =========================================================
   Verify page (verify.php)
   ========================================================= */
.vp { background: var(--porcelain); min-height: 100vh; display: flex; flex-direction: column; }
.vp .site-header { background: #fff; }
.vp-back { font: 500 .9rem/1 var(--display); color: var(--navy); text-decoration: none; padding: 10px 4px; }
.vp-back:hover { color: var(--gold); }

.vp-main { flex: 1; padding-block: clamp(32px, 6vw, 80px); }
.vp-grid {
  max-width: 1040px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
  grid-template-areas: "result result" "intro form";
  gap: clamp(28px, 4vw, 56px) clamp(32px, 5vw, 72px);
  align-items: start;
}
.vp-intro { grid-area: intro; padding-top: 12px; }
.vp-form { grid-area: form; }
.vp-result { grid-area: result; }

.vp-intro__title { font-size: clamp(1.9rem, 3.6vw, 2.7rem); font-weight: 800; }
.vp-intro__lede { color: var(--slate); font-size: 1.05rem; max-width: 46ch; }

/* Where-to-find: the real product label */
.vp-where { margin: 32px 0 0; padding-top: 24px; border-top: 1px solid var(--hair); }
.vp-where img { width: 100%; height: auto; border-radius: 8px; box-shadow: 0 10px 28px rgba(16,37,85,.12); }
.vp-where figcaption { margin-top: 14px; font-size: .92rem; color: var(--slate); }
.vp-where figcaption strong { display: block; color: var(--navy); font-family: var(--display); margin-bottom: 2px; }

.field__help { letter-spacing: 0; text-transform: none; color: #9aa2b1; margin-left: 6px; font-family: var(--body); }
.sticker .field input:invalid:focus { border-color: var(--navy); }

/* Result card */
.vp-result {
  display: flex; gap: clamp(20px, 3vw, 36px); align-items: center;
  background: #fff; border: 1px solid var(--hair); border-top: 4px solid var(--slate);
  border-radius: 6px; padding: clamp(24px, 4vw, 40px);
  box-shadow: 0 18px 40px rgba(16,37,85,.08);
  scroll-margin-top: 100px;
}
.vp-result--genuine  { border-top-color: #1f7a4d; }
.vp-result--not_found,
.vp-result--disabled { border-top-color: var(--warn); }
.vp-result--empty    { border-top-color: #b07a12; }
.vp-result__body { min-width: 0; }
.vp-result__body > p { margin-bottom: 0; color: var(--slate); }
.vp-result__tag { font: 600 .74rem/1 var(--display) !important; letter-spacing: .2em; text-transform: uppercase; color: #1f7a4d !important; margin-bottom: 10px !important; }
.vp-result__head { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 800; margin-bottom: .25em; }
.vp-result--not_found .vp-result__head,
.vp-result--disabled .vp-result__head { color: var(--warn); }
.vp-result__sub { margin-bottom: 18px !important; }

/* Genuine: a foil-style seal */
.vp-stamp { flex: none; width: clamp(110px, 14vw, 150px); }
.vp-stamp svg { width: 100%; height: auto; overflow: visible; }
.vp-stamp__outer { fill: none; stroke: var(--gold); stroke-width: 2; }
.vp-stamp__inner { fill: #1f7a4d; }
.vp-stamp__ring { font: 600 8.6px var(--display); fill: var(--gold); }
.vp-stamp__tick { fill: none; stroke: #fff; stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }

.vp-icon { flex: none; width: 72px; }
.vp-icon svg { width: 100%; fill: none; stroke-width: 3; stroke-linecap: round; }
.vp-icon--bad svg { stroke: var(--warn); }
.vp-icon--warn svg { stroke: #b07a12; }

.vp-codes { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 18px; }
.vp-codes div { background: var(--porcelain); border-radius: 4px; padding: 10px 14px; }
.vp-codes dt { font: 500 .66rem/1 var(--mono); letter-spacing: .14em; color: var(--slate); margin-bottom: 6px; }
.vp-codes dd { margin: 0; font: 500 1.05rem/1 var(--mono); color: var(--navy); letter-spacing: .04em; }

.vp-note { margin: 0; padding: 12px 14px; border-radius: 4px; font-size: .92rem; }
.vp-note--good { background: #edf6f1; color: #1d5c3c !important; }
.vp-note--warn { background: #fbf3e4; color: #6e4d0c !important; }

.vp-foot { background: var(--navy-deep); color: #9aa5ba; font-size: .85rem; }
.vp-foot__inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 22px; }
.vp-foot p { margin: 0; }
.vp-foot a { color: #c6cedd; }

@media (prefers-reduced-motion: no-preference) {
  .vp-result { animation: rise .6s cubic-bezier(.2,.7,.2,1) both; }
  .vp-stamp svg { animation: stamp .55s .15s cubic-bezier(.3,1.5,.5,1) both; }
}
@keyframes stamp { from { opacity: 0; transform: scale(1.35) rotate(-12deg); } }

@media (max-width: 860px) {
  .vp-grid { grid-template-columns: 1fr; grid-template-areas: "result" "form" "intro"; }
  .vp-grid:not(:has(.vp-result)) { grid-template-areas: "intro" "form"; }
  .vp-intro { padding-top: 0; }
}
@media (max-width: 560px) {
  .vp-result { flex-direction: column; align-items: flex-start; }
  .vp-back { font-size: 0; padding: 8px; }
  .vp-back span { font-size: 1.1rem; }
}

/* ---------- Thai typography ----------
   Thai has no case and tall stacked vowels/tone marks: drop the wide
   tracking used for Latin caps and give lines more room.            */
html[lang="th"] body { line-height: 1.8; }
html[lang="th"] h2, html[lang="th"] h3 { line-height: 1.35; letter-spacing: 0; }
html[lang="th"] .eyebrow,
html[lang="th"] .label-sheet h3,
html[lang="th"] .site-footer h4,
html[lang="th"] .moa-card__tag,
html[lang="th"] .sticker__kind,
html[lang="th"] .vp-result__tag,
html[lang="th"] .vp-codes dt { letter-spacing: .02em; font-size: .85rem; }
html[lang="th"] .hero__form { line-height: 1.7; }
html[lang="th"] .hero__contents { font-family: var(--body); font-size: .88rem; }
html[lang="th"] .nav-menu a { font-size: .95rem; }

/* ---------- Motion ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: no-preference) {
  .hero__title, .hero__strength, .hero__form, .hero__lede, .hero__actions { animation: rise .8s cubic-bezier(.2,.7,.2,1) both; }
  .hero__strength { animation-delay: .25s; }
  .hero__form { animation-delay: .32s; }
  .hero__lede { animation-delay: .38s; }
  .hero__actions { animation-delay: .44s; }
  .hero__rule { animation: draw .9s .12s cubic-bezier(.6,0,.2,1) both; }
  .hero__product { animation: rise 1.1s .2s cubic-bezier(.2,.7,.2,1) both; }
}
@keyframes rise { from { opacity: 0; transform: translateY(18px); } }
@keyframes draw { from { transform: scaleX(0); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero__inner, .split, .quality, .verify { grid-template-columns: 1fr; }
  .hero__field { width: 100%; opacity: .6; }
  .hero__product { max-width: 560px; }
  .split__aside { position: static; }
  .band-list { grid-template-columns: 1fr 1fr; gap: 18px 0; }
  .band-list li:nth-child(3) { border-left: 0; padding-left: 0; }
  .moa { grid-template-columns: 1fr; grid-template-areas: "gip" "glp" "join" "result"; }
  .moa__join { height: 48px; }
  .moa__join svg { display: none; }
  .moa__join::before { content: ""; display: block; width: 1px; height: 100%; margin-inline: auto; background: var(--gold); }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: none; border: 1px solid var(--hair); border-radius: var(--radius); cursor: pointer; }
  .nav-toggle__bar, .nav-toggle__bar::before, .nav-toggle__bar::after { display: block; width: 18px; height: 1.5px; background: var(--navy); position: relative; }
  .nav-toggle__bar::before, .nav-toggle__bar::after { content: ""; position: absolute; left: 0; }
  .nav-toggle__bar::before { top: -6px; }
  .nav-toggle__bar::after { top: 6px; }
  .nav-menu { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--hair); max-height: 0; overflow: hidden; transition: max-height .3s, padding .3s; padding: 0 var(--gutter); }
  .nav-menu.is-open { max-height: 420px; padding-block: 8px 20px; }
  .nav-menu__cta { margin: 10px 0 0; text-align: center; }
}

@media (max-width: 480px) {
  .brand { gap: 9px; }
  .brand__mark { width: 32px; }
  .brand__name { font-size: 1.1rem; letter-spacing: .16em; }
  .brand__tag { letter-spacing: .14em; white-space: nowrap; }
  .primary-nav { gap: 8px; }
  .lang-switch a { padding: 6px 8px; }
  .nav-toggle { width: 40px; height: 40px; }
}

@media (max-width: 640px) {
  .label-sheet, .isi { grid-template-columns: 1fr; }
  .label-sheet__group + .label-sheet__group { border-left: 0; border-top: 1px solid var(--hair); }
  .label-sheet__group { padding: 22px 20px; }
  .spec-list { columns: 1; }
  .isi__block + .isi__block:not(:nth-child(2)) { border-left: 0; border-top: 1px solid var(--hair); }
  .quality-list li { grid-template-columns: 1fr; gap: 4px; }
  .site-footer__top, .site-footer__nav { grid-template-columns: 1fr; }
  .band-list { grid-template-columns: 1fr; }
  .band-list li { border-left: 0 !important; padding-left: 0; }
  .sticker { padding: 22px; }
  .hero__actions .btn--primary { width: 100%; }
}