@charset "utf-8";
/* =========================================================
   想い-kasane- — 和モダン・スタイルシート
   ========================================================= */

:root {
  --bg:        #FBF8F3;   /* 生成り */
  --bg-2:      #F4EDE3;   /* 薄香 */
  --paper:     #FFFFFF;
  --ink:       #2C2723;   /* 墨 */
  --ink-2:     #6A6055;   /* 淡墨 */
  --ink-3:     #9C9184;
  --line:      #E3D9CA;
  --beni:      #B5342F;   /* 紅 */
  --beni-dark: #8E2622;
  --kin:       #B99A4A;   /* 金茶 */
  --kin-light: #D8C48A;

  --radius: 3px;
  --shadow-s: 0 2px 10px rgba(74, 58, 42, .06);
  --shadow-m: 0 10px 34px rgba(74, 58, 42, .10);
  --mincho: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", "Sorts Mill Goudy", serif;
  --gothic: "Yu Gothic", "YuGothic", "Hiragino Sans", "Noto Sans JP", "Meiryo", sans-serif;
  --wrap: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--gothic);
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.narrow { max-width: 780px; }

h1, h2, h3, h4 { font-family: var(--mincho); font-weight: 500; letter-spacing: .08em; line-height: 1.5; margin: 0; }

/* ---------- ヘッダー ---------- */
#site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 248, 243, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--wrap); margin-inline: auto;
  padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 11px; margin-right: auto; }
.brand-mark { width: 34px; height: 34px; color: var(--beni); flex: none; }
.brand-mark svg { width: 100%; height: 100%; }
.brand-text strong { display: block; font-family: var(--mincho); font-size: 20px; font-weight: 500; letter-spacing: .14em; white-space: nowrap; }
.brand-text small { display: block; font-size: 9px; letter-spacing: .34em; color: var(--ink-3); margin-top: -2px; }

.nav { display: flex; gap: 30px; }
.nav a {
  position: relative; font-size: 13.5px; color: var(--ink-2); padding: 4px 0;
  transition: color .25s;
}
.nav a::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: -2px; height: 1px;
  background: var(--kin); transition: left .3s, right .3s;
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a.is-active::after { left: 0; right: 0; }
.nav a.is-active { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 8px; }
.cart-btn { position: relative; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; transition: background .25s; }
.cart-btn:hover { background: var(--bg-2); }
.cart-count {
  position: absolute; top: 4px; right: 2px;
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--beni); color: #fff; font-size: 10.5px; line-height: 18px;
  text-align: center; font-family: var(--gothic);
}
.cart-count.is-empty { display: none; }

.menu-btn { display: none; width: 42px; height: 42px; border: 0; background: none; cursor: pointer; padding: 11px 9px; }
.menu-btn span { display: block; height: 1.4px; background: var(--ink); margin: 5px 0; transition: .3s; }
.menu-btn.is-open span:nth-child(1) { transform: translateY(6.4px) rotate(45deg); }
.menu-btn.is-open span:nth-child(2) { opacity: 0; }
.menu-btn.is-open span:nth-child(3) { transform: translateY(-6.4px) rotate(-45deg); }

/* ---------- ヒーロー ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(120% 90% at 78% 12%, rgba(216,196,138,.28), transparent 62%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: repeating-radial-gradient(circle at 50% 100%,
    transparent 0 13px, rgba(181,52,47,.10) 13px 14px, transparent 14px 30px);
  background-size: 60px 30px;
  opacity: .5;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
          mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
}
.hero-inner {
  position: relative; max-width: var(--wrap); margin-inline: auto; padding: 92px 24px 100px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}
.hero-copy .eyebrow {
  font-family: var(--mincho); font-size: 12px; letter-spacing: .42em; color: var(--kin);
  margin: 0 0 22px;
}
.hero-copy h1 { font-size: clamp(30px, 4.6vw, 50px); line-height: 1.42; margin-bottom: 24px; }
.hero-copy h1 .accent { color: var(--beni); }
.hero-copy p { color: var(--ink-2); max-width: 30em; margin: 0 0 34px; }
.hero-art { position: relative; display: grid; place-items: center; min-height: 340px; }
.hero-art .flower { width: 100%; max-width: 380px; animation: sway 7s ease-in-out infinite; }
.hero-art .flower.sub { position: absolute; width: 150px; }
.hero-art .flower.sub-a { left: 2%; top: 4%; animation-delay: -2.2s; opacity: .92; }
.hero-art .flower.sub-b { right: 4%; bottom: 2%; width: 118px; animation-delay: -4.4s; opacity: .88; }
@keyframes sway {
  0%, 100% { transform: rotate(-2.2deg) translateY(0); }
  50%      { transform: rotate(2.2deg) translateY(-8px); }
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 34px; border: 1px solid var(--ink); border-radius: var(--radius);
  background: var(--ink); color: #fff; cursor: pointer;
  font-size: 14px; letter-spacing: .16em;
  transition: background .25s, color .25s, border-color .25s, transform .2s;
}
.btn:hover { background: var(--beni); border-color: var(--beni); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-beni { background: var(--beni); border-color: var(--beni); }
.btn-beni:hover { background: var(--beni-dark); border-color: var(--beni-dark); }
.btn:disabled { opacity: .38; cursor: not-allowed; transform: none; }
.btn-wide { width: 100%; }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ---------- セクション ---------- */
.section { padding: 88px 0; }
.section-alt { background: linear-gradient(180deg, var(--bg-2), var(--bg)); }
.section-head { text-align: center; margin-bottom: 52px; }
.section-head .ja { font-size: clamp(22px, 3vw, 30px); }
.section-head .en { display: block; font-size: 10.5px; letter-spacing: .4em; color: var(--kin); margin-bottom: 14px; font-family: var(--gothic); }
.section-head p { color: var(--ink-2); margin: 16px auto 0; max-width: 46em; font-size: 14px; }
.rule { width: 46px; height: 1px; background: var(--kin); margin: 20px auto 0; }

/* ---------- 商品グリッド ---------- */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card { position: relative; display: block; transition: transform .35s; }
.card:hover { transform: translateY(-5px); }
.card-visual {
  display: grid; place-items: center;
  aspect-ratio: 1 / 1; padding: 16px;
  background: linear-gradient(160deg, #fff, var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-s);
  transition: box-shadow .35s, border-color .35s;
}
.card:hover .card-visual { box-shadow: var(--shadow-m); border-color: var(--kin-light); }
.card-visual .flower, .card-visual img { width: 84%; height: auto; transition: transform .5s; }
.card:hover .card-visual .flower { transform: scale(1.05) rotate(3deg); }
.card.is-out .card-visual { filter: grayscale(.75) opacity(.6); }

.badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--beni); color: #fff; font-size: 10.5px; letter-spacing: .12em;
  padding: 3px 10px; border-radius: 2px;
}
.badge-out { background: var(--ink-3); }

.card-body { display: block; padding: 14px 2px 0; }
.card-cat { display: block; font-size: 10.5px; letter-spacing: .22em; color: var(--kin); }
.card-name { display: block; font-family: var(--mincho); font-size: 15.5px; margin: 5px 0 9px; line-height: 1.6; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card-price { font-family: var(--mincho); font-size: 17px; }
.card-price small { font-size: 10px; color: var(--ink-3); margin-left: 5px; letter-spacing: .1em; }
.card-swatches { display: flex; gap: 4px; }
.swatch {
  width: 12px; height: 12px; border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, var(--b), var(--a) 72%);
  border: 1px solid rgba(0,0,0,.12);
}

/* ---------- ページ見出し ---------- */
.page-head {
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border-bottom: 1px solid var(--line);
  padding: 54px 0 46px; text-align: center;
}
.page-head h1 { font-size: clamp(24px, 3.4vw, 34px); }
.page-head .en { display: block; font-size: 10.5px; letter-spacing: .4em; color: var(--kin); margin-bottom: 12px; font-family: var(--gothic); }
.breadcrumb { font-size: 12px; color: var(--ink-3); margin-top: 16px; }
.breadcrumb a:hover { color: var(--beni); }

/* ---------- 絞り込み ---------- */
.filters {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  padding: 34px 0 8px;
}
.chip {
  border: 1px solid var(--line); background: var(--paper); color: var(--ink-2);
  padding: 8px 20px; border-radius: 100px; font-size: 13px; cursor: pointer;
  transition: .25s;
}
.chip:hover { border-color: var(--kin); color: var(--ink); }
.chip.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 0 30px; border-bottom: 1px solid var(--line); margin-bottom: 38px;
  flex-wrap: wrap;
}
.result-count { font-size: 13px; color: var(--ink-2); }
select.sort {
  border: 1px solid var(--line); background: var(--paper); border-radius: var(--radius);
  padding: 9px 14px; font-size: 13px; cursor: pointer;
}

/* ---------- 商品詳細 ---------- */
.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding: 56px 0 20px; }
.detail-visual {
  position: sticky; top: 96px; align-self: start;
  display: grid; place-items: center; padding: 40px;
  background: linear-gradient(160deg, #fff, var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-m);
  aspect-ratio: 1 / 1;
}
.detail-visual .flower, .detail-visual img { width: 82%; }
.detail-cat { font-size: 11px; letter-spacing: .28em; color: var(--kin); }
.detail h1 { font-size: clamp(23px, 3vw, 31px); margin: 12px 0 18px; }
.detail-price { font-family: var(--mincho); font-size: 27px; }
.detail-price small { font-size: 11.5px; color: var(--ink-3); margin-left: 8px; }
.detail-desc { color: var(--ink-2); margin: 24px 0 30px; }

.field { margin-bottom: 26px; }
.field > label, .field-label {
  display: block; font-size: 12px; letter-spacing: .2em; color: var(--ink-2); margin-bottom: 12px;
}
.color-list { display: flex; flex-wrap: wrap; gap: 12px; }
.color-opt {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); background: var(--paper);
  padding: 7px 16px 7px 8px; border-radius: 100px; cursor: pointer; font-size: 13px;
  transition: .22s;
}
.color-opt:hover { border-color: var(--kin); }
.color-opt.is-active { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.color-opt .dot {
  width: 20px; height: 20px; border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, var(--b), var(--a) 70%);
  border: 1px solid rgba(0,0,0,.1);
}

.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.qty button { width: 40px; height: 42px; border: 0; background: none; cursor: pointer; font-size: 17px; color: var(--ink-2); }
.qty button:hover { color: var(--beni); }
.qty input { width: 52px; height: 42px; border: 0; text-align: center; background: none; font-size: 15px; -moz-appearance: textfield; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.stock-note { font-size: 12.5px; color: var(--ink-2); margin-top: 10px; }
.stock-note.low { color: var(--beni); }

.spec { width: 100%; border-top: 1px solid var(--line); margin-top: 36px; font-size: 13.5px; }
.spec tr { border-bottom: 1px solid var(--line); }
.spec th { width: 6.5em; text-align: left; font-weight: 400; color: var(--ink-2); padding: 13px 0; vertical-align: top; }
.spec td { padding: 13px 0; color: var(--ink); }

/* ---------- カート ---------- */
.cart-layout { display: grid; grid-template-columns: 1fr 350px; gap: 44px; padding: 48px 0 20px; align-items: start; }
.cart-line {
  display: grid; grid-template-columns: 104px 1fr auto; gap: 20px; align-items: center;
  padding: 22px 0; border-bottom: 1px solid var(--line);
}
.cart-thumb {
  display: grid; place-items: center; padding: 10px; aspect-ratio: 1/1;
  background: linear-gradient(160deg, #fff, var(--bg-2)); border: 1px solid var(--line); border-radius: var(--radius);
}
.cart-name { font-family: var(--mincho); font-size: 16px; }
.cart-meta { font-size: 12.5px; color: var(--ink-2); margin-top: 4px; }
.cart-line-right { text-align: right; }
.cart-line-price { font-family: var(--mincho); font-size: 17px; }
.link-del { background: none; border: 0; color: var(--ink-3); font-size: 12px; cursor: pointer; text-decoration: underline; padding: 0; margin-top: 10px; }
.link-del:hover { color: var(--beni); }

.summary {
  position: sticky; top: 96px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-s);
}
.summary h3 { font-size: 17px; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.summary-row { display: flex; justify-content: space-between; font-size: 14px; padding: 7px 0; color: var(--ink-2); }
.summary-row.total {
  border-top: 1px solid var(--line); margin-top: 12px; padding-top: 16px;
  color: var(--ink); font-family: var(--mincho); font-size: 21px;
}
.free-ship { font-size: 12px; color: var(--beni); background: rgba(181,52,47,.06); padding: 9px 12px; border-radius: var(--radius); margin: 14px 0 4px; }
.empty { text-align: center; padding: 90px 20px; }
.empty p { color: var(--ink-2); margin-bottom: 26px; }

/* ---------- フォーム ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 22px; }
.form-grid .full { grid-column: 1 / -1; }
.form-field label { display: block; font-size: 12.5px; letter-spacing: .12em; color: var(--ink-2); margin-bottom: 7px; }
.req { color: var(--beni); font-size: 10.5px; margin-left: 6px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 14.5px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none; border-color: var(--kin); box-shadow: 0 0 0 3px rgba(185,154,74,.14);
}
.form-field textarea { min-height: 110px; resize: vertical; }
.form-field .hint { font-size: 11.5px; color: var(--ink-3); margin-top: 5px; }
.form-field.err input, .form-field.err textarea, .form-field.err select { border-color: var(--beni); }
.err-msg { display: none; color: var(--beni); font-size: 11.5px; margin-top: 5px; }
.form-field.err .err-msg { display: block; }

.pay-list { display: grid; gap: 10px; }
.pay-opt {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid var(--line); background: var(--paper); border-radius: var(--radius);
  padding: 14px 16px; cursor: pointer; transition: .2s;
}
.pay-opt:hover { border-color: var(--kin); }
.pay-opt.is-active { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.pay-opt input { margin-top: 5px; accent-color: var(--beni); }
.pay-opt b { font-weight: 500; font-family: var(--mincho); font-size: 15px; }
.pay-opt span { display: block; font-size: 12px; color: var(--ink-2); }

.fieldset-title {
  font-family: var(--mincho); font-size: 18px; margin: 40px 0 20px;
  padding-bottom: 12px; border-bottom: 1px solid var(--line);
}
.fieldset-title:first-of-type { margin-top: 0; }

/* ---------- 注文完了 ---------- */
.done { text-align: center; padding: 70px 0 30px; }
.done .mark { width: 78px; margin: 0 auto 26px; color: var(--beni); }
.done h1 { font-size: 28px; margin-bottom: 14px; }
.done p { color: var(--ink-2); }
.order-box {
  text-align: left; background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; margin: 34px auto 0; max-width: 620px;
}
.order-box h3 { font-size: 16px; margin-bottom: 14px; }
.order-box pre {
  font-family: var(--gothic); font-size: 13px; white-space: pre-wrap; line-height: 1.85;
  color: var(--ink-2); margin: 0; max-height: 340px; overflow: auto;
}

/* ---------- 読み物 ---------- */
.prose { max-width: 720px; margin-inline: auto; }
.prose h2 { font-size: 22px; margin: 52px 0 18px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 17px; margin: 32px 0 10px; color: var(--beni); }
.prose p { color: var(--ink-2); margin: 0 0 18px; }
.prose ul, .prose ol { color: var(--ink-2); padding-left: 1.3em; margin: 0 0 18px; }
.prose li { margin-bottom: 7px; }
.prose .lead { font-family: var(--mincho); font-size: 17px; color: var(--ink); line-height: 2.1; }
.info-table { width: 100%; border-top: 1px solid var(--line); font-size: 13.5px; }
.info-table tr { border-bottom: 1px solid var(--line); }
.info-table th { width: 10em; text-align: left; font-weight: 400; color: var(--ink-2); padding: 14px 10px 14px 0; vertical-align: top; }
.info-table td { padding: 14px 0; }
.todo { color: var(--beni); background: rgba(181,52,47,.07); padding: 1px 7px; border-radius: 2px; font-size: 12.5px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; counter-reset: s; }
.step { text-align: center; }
.step .no {
  counter-increment: s; display: grid; place-items: center;
  width: 46px; height: 46px; margin: 0 auto 16px; border-radius: 50%;
  border: 1px solid var(--kin); color: var(--kin); font-family: var(--mincho); font-size: 17px;
}
.step .no::before { content: counter(s); }
.step h3 { font-family: var(--mincho); font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--ink-2); margin: 0; }

/* 特長 */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
.feature { text-align: center; padding: 34px 24px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.feature .ico { width: 42px; height: 42px; margin: 0 auto 16px; color: var(--beni); }
.feature h3 { font-size: 16.5px; margin-bottom: 10px; }
.feature p { font-size: 13.5px; color: var(--ink-2); margin: 0; }

/* 帯 */
.band {
  background: var(--ink); color: #F3EDE3; text-align: center; padding: 66px 24px;
}
.band h2 { font-size: clamp(21px, 2.8vw, 27px); margin-bottom: 14px; color: #fff; }
.band p { color: rgba(243,237,227,.72); margin: 0 auto 28px; max-width: 40em; font-size: 14px; }
.band .btn { background: #fff; color: var(--ink); border-color: #fff; }
.band .btn:hover { background: var(--kin); border-color: var(--kin); color: #fff; }

/* ---------- フッター ---------- */
#site-footer { background: var(--bg-2); border-top: 1px solid var(--line); margin-top: 20px; }
.footer-inner {
  max-width: var(--wrap); margin-inline: auto; padding: 60px 24px 40px;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px;
}
.footer-brand { font-family: var(--mincho); font-size: 21px; letter-spacing: .16em; margin: 0 0 12px; }
.footer-brand span { display: block; font-family: var(--gothic); font-size: 9.5px; letter-spacing: .34em; color: var(--ink-3); }
.footer-note { font-size: 13px; color: var(--ink-2); margin: 0; }
.footer-col h4 { font-size: 13px; letter-spacing: .2em; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { font-size: 13px; color: var(--ink-2); }
.footer-col a:hover { color: var(--beni); }
.copyright {
  text-align: center; font-size: 11.5px; color: var(--ink-3);
  padding: 18px 24px 26px; margin: 0; border-top: 1px solid var(--line);
  letter-spacing: .1em;
}

/* ---------- トースト ---------- */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 22px);
  background: var(--ink); color: #fff; padding: 14px 22px; border-radius: var(--radius);
  display: flex; gap: 18px; align-items: center; font-size: 13.5px;
  box-shadow: var(--shadow-m); opacity: 0; pointer-events: none; transition: .3s; z-index: 100;
}
.toast.is-show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.toast a { color: var(--kin-light); text-decoration: underline; }

/* ---------- スクロール表示 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 1000px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { grid-template-columns: 1fr; text-align: center; padding-top: 62px; }
  .hero-copy p { margin-inline: auto; }
  .hero-art { order: -1; min-height: 260px; }
  .detail { grid-template-columns: 1fr; gap: 36px; }
  .detail-visual { position: static; }
  .cart-layout { grid-template-columns: 1fr; }
  .summary { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 14.5px; }
  .wrap { padding-inline: 18px; }
  .header-inner { padding: 11px 18px; gap: 12px; }
  .brand-mark { width: 30px; height: 30px; }
  .brand-text strong { font-size: 17px; letter-spacing: .08em; }
  .brand-text small { letter-spacing: .26em; }
  .menu-btn { display: block; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; gap: 0; background: var(--bg);
    border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .35s ease;
  }
  .nav.is-open { max-height: 320px; }
  .nav a { padding: 15px 22px; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav a::after { display: none; }

  .section { padding: 58px 0; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; }
  .grid-3, .features, .steps { grid-template-columns: 1fr; }
  .card-name { font-size: 14px; }
  .form-grid { grid-template-columns: 1fr; }
  .cart-line { grid-template-columns: 76px 1fr; }
  .cart-line-right { grid-column: 2; text-align: left; display: flex; align-items: center; gap: 18px; }
  .link-del { margin-top: 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; padding-top: 44px; }
  .detail-visual { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}