/* ==========================================================
   AOKICOSMETIC base.css — デザイントークン・レイアウト・共通部品
   ========================================================== */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; overflow-x: clip; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: none; }
button { cursor: pointer; }

/* ---------- tokens ---------- */
:root {
  --bg: #FFFFFF;
  --ink: #212326;
  --ink-head: #1A1B18;
  --ink-warm: #231815;
  --line: #D2D5D9;
  --line-soft: #E8E8E8;
  --bg-soft: #FAFAFA;
  --bg-thumb: #E7E8EA;
  --bg-foot: #F7F5F4;
  --foot-link: #B3B3B3;
  --hover-fade: #CCCCCC;
  --overlay: rgba(26, 27, 24, .2);

  --accent: #C6FF4A;
  --line-skin: #4FB3D9;
  --line-make: #E8618C;
  --line-hair: #A3B53F;

  --font-en: "Outfit", "Zen Kaku Gothic New", sans-serif;
  --font-jp: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;

  --dur-s: .1s;
  --dur-m: .25s;
  --dur-l: .5s;
  --dur-xl: 1s;

  --page-width: 160rem;
}

/* ---------- body ---------- */
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.8;
  letter-spacing: .06rem;
  line-break: strict;
  overflow-x: clip;
  overflow-wrap: anywhere;
}
@media (min-width: 750px) { body { font-size: 1.6rem; } }

::selection { background: var(--accent); color: var(--ink-head); }

/* 改行制御 */
.br-sp { display: inline; }
.br-pc { display: none; }
@media (min-width: 750px) {
  .br-sp { display: none; }
  .br-pc { display: inline; }
}
.nb { white-space: nowrap; }

/* ---------- layout ---------- */
.page-width {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 2rem;
}
@media (min-width: 750px) { .page-width { padding: 0 5rem; } }

.container-1180, .container-1100, .container-995 { margin-left: auto; margin-right: auto; padding: 0 2rem; }
@media (min-width: 750px) {
  .container-1180, .container-1100, .container-995 { padding: 0 5rem; }
  .container-1180 { max-width: calc(118rem + 10rem); }
  .container-1100 { max-width: calc(110rem + 10rem); }
  .container-995  { max-width: calc(99.5rem + 10rem); }
}

/* 帯間の大余白（帯ごとに変える＝均等禁止） */
.band-b-150 { margin-bottom: 7.5rem; }
.band-b-190 { margin-bottom: 9.5rem; }
.band-b-200 { margin-bottom: 10rem; }
.band-b-227 { margin-bottom: 11.4rem; }
@media (min-width: 750px) {
  .band-b-150 { margin-bottom: 15rem; }
  .band-b-190 { margin-bottom: 19rem; }
  .band-b-200 { margin-bottom: 20rem; }
  .band-b-227 { margin-bottom: 22.7rem; }
}

/* ---------- typography ---------- */
h1, h2, h3, h4, h5, h6 { color: var(--ink-head); line-height: 1.3; letter-spacing: .06rem; font-weight: 700; }

.t-h0 { font-size: 3.6rem; }
.t-h1 { font-size: 2.8rem; }
.t-h2 { font-size: 2rem; }
.t-h3 { font-size: 1.7rem; }
.t-h5 { font-size: 1.2rem; }
@media (min-width: 750px) {
  .t-h0 { font-size: 6rem; }
  .t-h1 { font-size: 4rem; }
  .t-h2 { font-size: 2.8rem; }
  .t-h3 { font-size: 2rem; }
  .t-h5 { font-size: 1.3rem; }
}

/* 英字見出し（Uniform代替=Outfit） */
.t-en { font-family: var(--font-en); font-weight: 700; letter-spacing: .08em; }
.t-en-md { font-family: var(--font-en); font-weight: 600; letter-spacing: .06em; }
.t-en-body { font-family: var(--font-en); font-weight: 300; }

/* ゴースト巨大英字（「Product」型セクション見出し） */
.t-ghost {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 7rem;
  line-height: 1;
  letter-spacing: .1rem;
  color: var(--ink-head);
}
@media (min-width: 750px) { .t-ghost { font-size: 17rem; } }

/* 和文見出し（こぶりなW6代替=Zen Kaku 700） */
.t-jp-head {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 2.1rem;
  line-height: 2;
  letter-spacing: .04em;
  color: var(--ink-warm);
}
@media (min-width: 750px) { .t-jp-head { font-size: 2.8rem; } }

/* 本文（和文小） */
.t-body { font-size: 1.2rem; line-height: 1.9; letter-spacing: .02em; }
@media (min-width: 750px) { .t-body { font-size: 1.4rem; line-height: 2; } }

/* キャプション */
.t-cap { font-size: 1rem; letter-spacing: .07rem; color: #767676; }
.t-cap-up { font-size: 1rem; letter-spacing: .13rem; text-transform: uppercase; color: #767676; font-family: var(--font-en); font-weight: 600; }

/* キッカー（横線48×2px＋58px間隔。SPは縦書き化を各ページで適用） */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 5.8rem;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-head);
}
.kicker::before { content: ""; width: 4.8rem; height: 2px; background: currentColor; flex: none; }
@media (min-width: 750px) { .kicker { font-size: 1.3rem; } }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  transition: transform var(--dur-l) ease;
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 6rem;
  padding: 1.2rem 2rem;
}
@media (min-width: 750px) { .site-header__inner { min-height: 10rem; padding: 1.2rem 5rem; } }
@media (min-width: 990px) {
  .site-header__inner {
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: auto auto;
    row-gap: 1rem;
    min-height: 0;
    padding: 1.6rem 5rem 1.4rem;
  }
  .site-header .site-header__logo { grid-column: 2; grid-row: 1; }
  .site-header .site-header__tools { grid-column: 3; grid-row: 1; }
  .site-header .site-header__nav { grid-column: 1 / -1; grid-row: 2; justify-self: center; }
}
.site-header__logo {
  grid-column: 2;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: .18em;
  color: var(--ink-head);
}
@media (min-width: 750px) { .site-header__logo { font-size: 2.2rem; } }
.site-header__nav { grid-column: 1; grid-row: 1; }
.site-header__nav a { white-space: nowrap; }
.site-header__nav ul { display: none; }
@media (min-width: 990px) {
  .site-header__nav ul { display: flex; gap: 3.2rem; }
  .site-header__nav a {
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .6rem 0;
    background-image: linear-gradient(currentColor, currentColor);
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: 0% 1px;
    transition: background-size var(--dur-m) ease;
  }
  .site-header__nav a:hover,
  .site-header__nav a[aria-current="page"] { background-size: 100% 1px; }
}
.site-header__tools { grid-column: 3; display: flex; justify-content: flex-end; align-items: center; gap: 1.8rem; }
.site-header__tools svg { width: 1.8rem; height: 1.8rem; display: block; }

/* ハンバーガー（SP） */
.menu-btn { display: inline-flex; flex-direction: column; justify-content: center; gap: .5rem; width: 2.4rem; height: 2.4rem; }
.menu-btn span { display: block; height: 1px; background: var(--ink-head); transition: transform var(--dur-m) ease, opacity var(--dur-m) ease; }
@media (min-width: 990px) { .menu-btn { display: none; } }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(.6rem) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-.6rem) rotate(-45deg); }

/* ドロワー（SP） */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg);
  padding: 10rem 2rem 4rem;
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform var(--dur-l) ease, visibility 0s linear var(--dur-l);
}
.drawer.is-open { transform: translateX(0); visibility: visible; transition: transform var(--dur-l) ease, visibility 0s linear 0s; }
.drawer a {
  display: block;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.drawer .drawer__jp { font-family: var(--font-jp); font-weight: 400; font-size: 1.1rem; color: #999; margin-left: 1rem; letter-spacing: .04em; text-transform: none; }
@media (min-width: 990px) { .drawer { display: none; } }

/* ---------- buttons ---------- */
/* FVボタン: 右辺と下辺のみ1px黒枠＋矢印 */
.btn-fv {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 12.5rem;
  height: 4rem;
  padding-left: 1.6rem;
  background: var(--bg);
  border-right: 1px solid #000;
  border-bottom: 1px solid #000;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .08em;
  color: var(--ink-head);
  transition: background-color var(--dur-m) ease;
}
@media (min-width: 750px) {
  .btn-fv { width: 30rem; height: 6rem; padding-left: 2.4rem; font-size: 1.3rem; }
}
.btn-fv::after {
  content: "";
  position: absolute;
  right: 1.4rem;
  top: 50%;
  width: .6rem;
  height: .6rem;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
  transition: transform var(--dur-m) ease;
}
@media (min-width: 750px) { .btn-fv::after { right: 2.2rem; } }
.btn-fv:hover { background-color: var(--bg-soft); }
.btn-fv:hover::after { transform: translate(.4rem, -50%) rotate(45deg); }

/* ピルボタン */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20rem;
  min-height: 4.6rem;
  padding: 1rem 3rem;
  border-radius: 2.8rem;
  background: #000;
  color: #fff;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  transition: color var(--dur-l) ease, background-color var(--dur-l) ease, box-shadow var(--dur-l) ease;
}
@media (min-width: 750px) { .btn-pill { min-width: 24rem; min-height: 5rem; } }
.btn-pill:hover { background: #333; }
.btn-pill--ghost { background: transparent; color: var(--ink-head); box-shadow: inset 0 0 0 1px var(--ink-head); }
.btn-pill--ghost:hover { background: transparent; box-shadow: inset 0 0 0 2px var(--ink-head); }
.btn-pill--light { background: #fff; color: var(--ink-head); }
.btn-pill--light:hover { background: var(--hover-fade); }

/* 下線リンク（左から濃線が伸びる2層） */
.link-underline {
  padding-bottom: .3rem;
  background-image: linear-gradient(currentColor, currentColor), linear-gradient(var(--line), var(--line));
  background-repeat: no-repeat;
  background-position: left bottom, left bottom;
  background-size: 0% 1px, 100% 1px;
  transition: background-size var(--dur-m) ease;
}
.link-underline:hover { background-size: 100% 1px, 100% 1px; }

/* テキストCTA（SEE MORE型） */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-head);
  transition: color var(--dur-m) ease;
}
.link-more::after {
  content: "";
  width: .5rem;
  height: .5rem;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--dur-m) ease;
}
.link-more:hover { color: #666; }
.link-more:hover::after { transform: translateX(.4rem) rotate(45deg); }

/* ---------- 製品カード ---------- */
.card { display: flex; flex-direction: column; gap: 1.2rem; }
.card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--bg-thumb);
  border-radius: 3px;
}
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__media .card__alt {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .2s ease;
}
.card:hover .card__alt { opacity: 1; }
.card__badge {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 6.5rem;
  height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  background: #000;
  color: #fff;
  font-size: 1.1rem;
  letter-spacing: .06em;
}
.card__name {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: .06em;
  color: var(--ink-head);
  line-height: 1.4;
}
.card__cat { font-size: 1rem; color: #767676; letter-spacing: .04em; }
.card__price { font-family: var(--font-en); font-weight: 700; font-size: 1.3rem; letter-spacing: .04em; color: var(--ink-head); }
.card__btn {
  align-self: flex-start;
  padding: .8rem 1.6rem;
  border: 1px solid #d9d9d9;
  border-radius: 3px;
  font-size: 1.1rem;
  letter-spacing: .08em;
  color: var(--ink-head);
  transition: all .15s linear;
}
.card:hover .card__btn, .card__btn:hover { border-color: #999; }

/* ライン識別色チップ */
.chip { display: inline-block; width: .9rem; height: .9rem; border-radius: 50%; }
.chip--skin { background: var(--line-skin); }
.chip--make { background: var(--line-make); }
.chip--hair { background: var(--line-hair); }

/* ---------- グリッド ---------- */
.grid-products {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3.2rem 1.6rem;
}
@media (min-width: 750px) { .grid-products { grid-template-columns: repeat(3, 1fr); gap: 4.8rem 2.4rem; } }
@media (min-width: 990px) { .grid-products { grid-template-columns: repeat(4, 1fr); } }

/* 横スクロール帯（自作スクロールバー） */
.hscroll {
  display: flex;
  gap: 1.6rem;
  overflow-x: auto;
  padding-bottom: 1.6rem;
  scrollbar-width: thin;
  scrollbar-color: #ccc #eee;
}
.hscroll::-webkit-scrollbar { height: 4px; }
@media (max-width: 749px) { .hscroll::-webkit-scrollbar { height: 3px; } }
.hscroll::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }
.hscroll::-webkit-scrollbar-track { background: #eee; }
.hscroll > * { flex: none; }

/* ---------- 回遊バナー3件（MORE TO EXPLORE.） ---------- */
.explore { border-top: 1px solid var(--line); padding-top: 6rem; }
.explore__title { margin-bottom: 3.2rem; }
.explore__grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 750px) { .explore__grid { grid-template-columns: repeat(3, 1fr); gap: 2.4rem; } }
.explore__item { position: relative; display: block; overflow: hidden; background: var(--bg-thumb); aspect-ratio: 3 / 2; align-self: start; }
.explore__item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-l) ease; }
.explore__item:hover img { transform: scale(1.04); }
.explore__label {
  position: absolute;
  left: 1.6rem;
  bottom: 1.4rem;
  color: #fff;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: .08em;
}
.explore__item::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(26,27,24,.45), transparent 45%); }
.explore__label { z-index: 1; }

/* ---------- フッター ---------- */
.site-footer { background: var(--ink-head); color: #fff; padding: 6rem 0 3rem; }
@media (min-width: 750px) { .site-footer { padding: 9rem 0 4rem; } }
.site-footer__logo { font-family: var(--font-en); font-weight: 700; font-size: 2.4rem; letter-spacing: .18em; color: #fff; margin-bottom: 4rem; }
.site-footer__cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4rem 2rem; margin-bottom: 5rem; }
@media (min-width: 750px) { .site-footer__cols { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }
.site-footer__head { font-family: var(--font-en); font-weight: 700; font-size: 1.1rem; letter-spacing: .16em; text-transform: uppercase; color: #fff; margin-bottom: 1.8rem; }
.site-footer__cols a { display: inline-block; padding: .5rem 0; font-size: 1.2rem; color: var(--foot-link); letter-spacing: .04em; transition: color var(--dur-m) ease; }
.site-footer__cols a:hover { color: #fff; }
.site-footer__news p { font-size: 1.2rem; color: var(--foot-link); margin-bottom: 1.4rem; }
.site-footer__form { display: flex; border-bottom: 1px solid #4c4e50; }
.site-footer__form input { flex: 1; padding: 1rem 0; font-size: 1.3rem; color: #fff; }
.site-footer__form input::placeholder { color: #666; }
.site-footer__form button { padding: 1rem; color: #fff; }
.site-footer__sns { display: flex; gap: 2rem; margin-bottom: 4rem; }
.site-footer__sns a { color: var(--foot-link); transition: color var(--dur-m) ease; }
.site-footer__sns a:hover { color: #fff; }
.site-footer__sns svg { width: 1.8rem; height: 1.8rem; }
.site-footer__legal { display: flex; flex-wrap: wrap; gap: 1rem 2.4rem; align-items: center; justify-content: space-between; border-top: 1px solid #333536; padding-top: 2.4rem; }
.site-footer__copy { font-family: var(--font-en); font-weight: 600; font-size: .9rem; letter-spacing: .06em; color: var(--foot-link); }

/* ---------- ユーティリティ ---------- */
.visually-hidden {
  position: absolute !important;
  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;
  top: -100%;
  left: 1rem;
  z-index: 999;
  background: #000;
  color: #fff;
  padding: 1rem 1.6rem;
  font-size: 1.2rem;
}
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 2px solid #2B5FD9; outline-offset: 2px; box-shadow: 0 0 0 5px rgba(255, 255, 255, .85); }

/* ページ見出し（下層共通・キャッチ付き） */
.page-head { padding: 6rem 0 4rem; }
@media (min-width: 750px) { .page-head { padding: 10rem 0 6rem; } }
.page-head__title { font-family: var(--font-en); font-weight: 700; font-size: 3.2rem; letter-spacing: .08em; line-height: 1.1; color: var(--ink-head); }
@media (min-width: 750px) { .page-head__title { font-size: 5rem; } }
.page-head__lead { margin-top: 2rem; font-size: 1.2rem; line-height: 1.9; }
@media (min-width: 750px) { .page-head__lead { margin-top: 2.8rem; font-size: 1.4rem; line-height: 2; } }

/* 価格の矢印表記 */
.price-arrow { display: inline-flex; align-items: baseline; gap: 1.2rem; font-family: var(--font-en); font-weight: 700; color: var(--ink-head); }
.price-arrow .from { color: #999; text-decoration: line-through; text-decoration-thickness: 1px; }
.price-arrow .arr { font-weight: 400; color: #999; }

/* テーブル（成分・取引条件など） */
.spec-table { width: 100%; border-collapse: collapse; font-size: 1.2rem; }
@media (min-width: 750px) { .spec-table { font-size: 1.4rem; } }
.spec-table th, .spec-table td { padding: 1.6rem .4rem; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; line-height: 1.8; }
.spec-table th { width: 30%; font-weight: 700; color: var(--ink-head); white-space: nowrap; }