/* ============================================================
   カナメ製作所 — 制作デモ(架空の企業)
   コンセプト:「1個から、図面どおりに、早く」
   デザイン:鉄紺 × クールホワイト × 計測テープの黄 / 寸法線・公差モチーフ
   - モバイルファースト(min-width で拡張)
   - クラスは kn- プレフィックス
   - 写真: Unsplash(商用可・クレジット不要ライセンス)
   ============================================================ */

/* ---- デザイントークン ---- */
:root {
  --kn-navy: #16202e;        /* 鉄紺(主役・濃面) */
  --kn-navy-2: #223046;      /* 鉄紺の明部(カード・ホバー) */
  --kn-paper: #f4f6f8;       /* クールホワイト(地) */
  --kn-white: #ffffff;
  --kn-ink: #1b2432;         /* 本文 */
  --kn-ink-soft: #5d6a7c;    /* 補足 */
  --kn-steel: #8a94a3;       /* 鋼グレー(罫線ラベル) */
  --kn-line: #d8dee6;        /* 罫線 */
  --kn-line-onnavy: rgba(255, 255, 255, 0.18);
  --kn-accent: #ffd23f;      /* 計測テープの黄 */

  --kn-font-body: "Murecho", "Hiragino Kaku Gothic ProN", sans-serif;
  --kn-font-mono: "JetBrains Mono", "Consolas", monospace;

  --kn-max: 1120px;
  --kn-header-h: 64px;
}

/* ---- ベースリセット + 全体設定(テーマ側領域)----
   このブロックと直下の .kn-body は WP 移植時に持ち込まない(要素直指定のため)。
   受注時は wp-henkan で打ち消しCSS方式に変換すること(own-site/site-wp と同様)。 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--kn-header-h) + 10px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

.kn-body {
  font-family: var(--kn-font-body);
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--kn-ink);
  background: var(--kn-paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.kn-body a { color: inherit; text-decoration: none; }
.kn-body ul, .kn-body ol { list-style: none; }
.kn-body img { max-width: 100%; height: auto; display: block; }
.kn-body :focus-visible { outline: 3px solid var(--kn-accent); outline-offset: 3px; }

.kn-visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ---- ボタン ---- */
.kn-btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 0;
  font-weight: 700;
  font-size: 0.92rem;
  line-height: 1.4;
  text-align: center;
  letter-spacing: 0.08em;
  border: 2px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
/* a 要素にも確実に効くよう a 付きセレクタを併記(color:inherit 対策) */
.kn-btn--accent,
a.kn-btn--accent { background: var(--kn-accent); color: var(--kn-navy); }
.kn-btn--accent:hover,
a.kn-btn--accent:hover { background: var(--kn-navy); color: var(--kn-accent); transform: translateY(-2px); }
.kn-btn--ghost,
a.kn-btn--ghost { border-color: rgba(255, 255, 255, 0.55); color: var(--kn-white); background: transparent; }
.kn-btn--ghost:hover,
a.kn-btn--ghost:hover { border-color: var(--kn-white); background: rgba(255, 255, 255, 0.08); color: var(--kn-white); }
.kn-btn--lg { padding: 17px 34px; font-size: 0.98rem; }

/* ---- ヘッダー ---- */
.kn-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 246, 248, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kn-line);
}
.kn-header__inner {
  max-width: var(--kn-max);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--kn-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.kn-logo { display: flex; align-items: center; gap: 9px; }
.kn-logo__mark {
  width: 12px;
  height: 12px;
  background: var(--kn-accent);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 30% 100%, 0 70%);
}
.kn-logo__text { font-weight: 900; font-size: 1.15rem; letter-spacing: 0.06em; }
.kn-logo__en {
  font-family: var(--kn-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--kn-ink-soft);
}

/* ナビ(スマホ:開閉パネル) */
.kn-nav {
  position: fixed;
  inset: var(--kn-header-h) 0 auto 0;
  background: var(--kn-paper);
  border-bottom: 1px solid var(--kn-line);
  padding: 8px 24px 24px;
  display: none;
  flex-direction: column;
  gap: 10px;
  max-height: calc(100vh - var(--kn-header-h));
  overflow-y: auto;
}
.kn-nav.is-open { display: flex; }
.kn-nav__list { display: flex; flex-direction: column; }
.kn-nav__link {
  display: block;
  padding: 13px 4px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--kn-line);
}
.kn-nav__link:hover { color: var(--kn-navy-2); text-decoration: underline; text-underline-offset: 4px; }
.kn-nav__cta { margin-top: 14px; }

.kn-menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 11px;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.kn-menu-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--kn-ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.kn-menu-toggle.is-open .kn-menu-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.kn-menu-toggle.is-open .kn-menu-toggle__bar:nth-child(2) { opacity: 0; }
.kn-menu-toggle.is-open .kn-menu-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- ヒーロー ---- */
.kn-hero {
  position: relative;
  background: var(--kn-navy);
  color: var(--kn-white);
  overflow: hidden;
}
.kn-hero__inner {
  max-width: var(--kn-max);
  margin: 0 auto;
  padding: 54px 20px 58px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.kn-hero__eyebrow {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: #aeb9c8;
  margin-bottom: 26px;
}
.kn-hero__eyebrow-en {
  font-family: var(--kn-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--kn-accent);
}
.kn-hero__title {
  font-weight: 900;
  font-size: clamp(2rem, 8.6vw, 3.7rem);
  line-height: 1.4;
  letter-spacing: 0.04em;
}
.kn-hero__line { display: block; }
.kn-hero__lead {
  margin-top: 22px;
  max-width: 30em;
  color: #c3ccd8;
  font-size: 0.95rem;
}
.kn-hero__actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.kn-hero__specs {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  border-top: 1px solid var(--kn-line-onnavy);
  padding-top: 20px;
}
.kn-hero__spec dt {
  font-family: var(--kn-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: #aeb9c8;
}
.kn-hero__spec dd {
  font-family: var(--kn-font-mono);
  font-weight: 600;
  font-size: 1.9rem;
  line-height: 1.3;
  color: var(--kn-accent);
}
.kn-hero__spec-unit {
  font-size: 0.78rem;
  color: #c3ccd8;
  margin-left: 4px;
  letter-spacing: 0.04em;
}
.kn-hero__spec-text { font-size: 1.02rem; color: var(--kn-white); padding-top: 8px; }

.kn-hero__figure {
  position: relative;
  align-self: center;
  width: min(86%, 360px);
  border: 1px solid var(--kn-line-onnavy);
  padding: 10px;
}
.kn-hero__figure img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.kn-hero__figcap {
  position: absolute;
  left: 10px;
  bottom: 10px;
  background: var(--kn-navy);
  color: #c3ccd8;
  font-family: var(--kn-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  padding: 5px 10px;
}
/* 計測テープ(ヒーロー下端の目盛り) */
.kn-hero__ruler {
  height: 14px;
  background:
    repeating-linear-gradient(
      to right,
      var(--kn-navy) 0 1px,
      transparent 1px 12px
    ),
    var(--kn-accent);
  background-position: left bottom;
}

/* ---- セクション共通 ---- */
.kn-section { padding: 74px 0; }
.kn-section__inner {
  max-width: var(--kn-max);
  margin: 0 auto;
  padding: 0 20px;
}
.kn-head { margin-bottom: 34px; }
.kn-head__en {
  font-family: var(--kn-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  color: var(--kn-ink-soft);
}
.kn-head__ja {
  margin-top: 6px;
  font-weight: 900;
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  letter-spacing: 0.05em;
  line-height: 1.5;
}
/* 寸法線・公差(シグネチャー) */
.kn-head__tolerance {
  margin-top: 10px;
  font-family: var(--kn-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--kn-steel);
}
.kn-head--onnavy .kn-head__en { color: var(--kn-accent); }
.kn-head--onnavy .kn-head__ja { color: var(--kn-white); }
.kn-head--onnavy .kn-head__tolerance { color: #7f8da0; }

.kn-lead { max-width: 40em; color: var(--kn-ink-soft); margin-bottom: 38px; }
.kn-note { margin-top: 26px; font-size: 0.82rem; color: var(--kn-ink-soft); }

/* ---- できること・加工事例 ---- */
.kn-works { background: var(--kn-white); }
.kn-works__grid { display: grid; gap: 26px; }
.kn-case {
  border: 1px solid var(--kn-line);
  background: var(--kn-paper);
  display: flex;
  flex-direction: column;
}
.kn-case__photo img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.kn-case__name {
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  padding: 16px 18px 0;
}
.kn-case__name::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--kn-accent);
  margin-right: 9px;
}
.kn-case__body { font-size: 0.88rem; color: var(--kn-ink-soft); padding: 6px 18px 14px; flex: 1; }
.kn-case__specs {
  border-top: 1px dashed var(--kn-line);
  padding: 12px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.kn-case__specs > div { display: flex; gap: 12px; align-items: baseline; }
.kn-case__specs dt {
  flex: 0 0 4.5em;
  font-family: var(--kn-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--kn-steel);
}
.kn-case__specs dd { font-family: var(--kn-font-mono); font-size: 0.82rem; }

/* ---- 選ばれる理由 ---- */
.kn-reason { background: var(--kn-navy); color: var(--kn-white); }
.kn-reason__grid { display: grid; gap: 28px; }
.kn-reason__item {
  border-top: 2px solid var(--kn-accent);
  padding-top: 18px;
}
.kn-reason__label {
  font-family: var(--kn-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--kn-accent);
}
.kn-reason__name {
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  margin: 6px 0 8px;
}
.kn-reason__body { font-size: 0.9rem; color: #c3ccd8; }

/* ---- 設備一覧 ---- */
.kn-machines { background: var(--kn-paper); }
.kn-machines__grid { display: flex; flex-direction: column; gap: 34px; }
.kn-machines__tablewrap { overflow-x: auto; }
.kn-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--kn-white);
  border: 1px solid var(--kn-line);
  font-size: 0.9rem;
}
.kn-table th {
  font-family: var(--kn-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-align: left;
  color: var(--kn-white);
  background: var(--kn-navy);
  padding: 10px 16px;
}
.kn-table td { padding: 11px 16px; border-top: 1px solid var(--kn-line); }
.kn-table tbody tr:nth-child(even) { background: var(--kn-paper); }
.kn-table__num { font-family: var(--kn-font-mono); text-align: right; }
.kn-machines__photo { max-width: 520px; }
.kn-machines__photo img { border: 1px solid var(--kn-line); }
.kn-photocap {
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--kn-ink-soft);
  padding-left: 14px;
  position: relative;
}
.kn-photocap::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 2px;
  background: var(--kn-accent);
}

/* ---- ご依頼の流れ ---- */
.kn-flow { background: var(--kn-white); }
.kn-flow__list { display: grid; gap: 0; max-width: 720px; }
.kn-flow__step {
  position: relative;
  padding: 20px 4px 22px 66px;
  border-bottom: 1px solid var(--kn-line);
}
.kn-flow__step:first-child { border-top: 1px solid var(--kn-line); }
.kn-flow__num {
  position: absolute;
  left: 4px;
  top: 22px;
  font-family: var(--kn-font-mono);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--kn-navy);
  border-bottom: 3px solid var(--kn-accent);
  padding-bottom: 2px;
}
.kn-flow__name { font-weight: 900; font-size: 1.08rem; letter-spacing: 0.04em; margin-bottom: 4px; }
.kn-flow__body { font-size: 0.9rem; color: var(--kn-ink-soft); }

/* ---- 品質・検査 ---- */
.kn-quality { background: var(--kn-navy); color: var(--kn-white); }
.kn-quality__grid { display: flex; flex-direction: column; gap: 36px; }
.kn-quality__lead { max-width: 36em; color: #c3ccd8; margin-bottom: 20px; }
.kn-quality__lead strong { color: var(--kn-accent); font-weight: 900; }
.kn-quality__list { display: flex; flex-direction: column; gap: 10px; max-width: 36em; }
.kn-quality__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: #dde3ea;
}
.kn-quality__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 12px;
  height: 7px;
  border-left: 2.5px solid var(--kn-accent);
  border-bottom: 2.5px solid var(--kn-accent);
  transform: rotate(-45deg);
}
.kn-quality__badge {
  align-self: flex-start;
  border: 1px solid var(--kn-line-onnavy);
  padding: 26px 34px;
  text-align: center;
}
.kn-quality__badge-num {
  font-family: var(--kn-font-mono);
  font-weight: 600;
  font-size: clamp(2.6rem, 9vw, 3.6rem);
  color: var(--kn-accent);
  line-height: 1.1;
}
.kn-quality__badge-label {
  margin-top: 8px;
  font-family: var(--kn-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: #aeb9c8;
}

/* ---- 会社概要 ---- */
.kn-company { background: var(--kn-paper); }
.kn-company__table {
  background: var(--kn-white);
  border: 1px solid var(--kn-line);
  max-width: 760px;
}
.kn-company__row { display: flex; flex-direction: column; padding: 12px 20px; }
.kn-company__row:not(:last-child) { border-bottom: 1px solid var(--kn-line); }
.kn-company__row dt {
  font-family: var(--kn-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--kn-ink-soft);
  font-weight: 500;
}
.kn-company__row dd { font-size: 0.95rem; }

/* ---- 見積りCTA ---- */
.kn-contact {
  position: relative;
  background: var(--kn-navy);
  color: var(--kn-white);
  border-top: 14px solid var(--kn-accent);
}
.kn-contact__inner { text-align: center; }
.kn-contact__title {
  font-weight: 900;
  font-size: clamp(1.7rem, 6vw, 2.5rem);
  letter-spacing: 0.05em;
}
.kn-contact__lead { margin: 16px 0 30px; font-size: 0.95rem; color: #c3ccd8; }
.kn-contact__note { margin-top: 18px; font-size: 0.84rem; color: #aeb9c8; }

/* ---- フッター ---- */
.kn-footer {
  background: #0e1621;
  color: #b8c1cd;
  text-align: center;
}
.kn-footer__inner {
  max-width: var(--kn-max);
  margin: 0 auto;
  padding: 42px 20px 34px;
}
.kn-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--kn-white);
  margin-bottom: 10px;
}
.kn-footer__addr { font-size: 0.8rem; }
.kn-footer__copy {
  font-family: var(--kn-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-top: 6px;
}
.kn-footer__demo {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.75rem;
  opacity: 0.8;
}
.kn-footer__demo a { text-decoration: underline; text-underline-offset: 3px; }

/* ---- スクロール表示(JS 有効時のみ) ---- */
@media (prefers-reduced-motion: no-preference) {
  .kn-js .kn-reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .kn-js .kn-reveal.is-visible { opacity: 1; transform: none; }
}

/* ============================================================
   タブレット以上(min-width: 720px)
   ============================================================ */
@media (min-width: 720px) {
  .kn-section { padding: 96px 0; }
  .kn-works__grid { grid-template-columns: repeat(3, 1fr); }
  .kn-reason__grid { grid-template-columns: repeat(3, 1fr); gap: 40px; }
  .kn-machines__grid { flex-direction: row; align-items: flex-start; gap: 48px; }
  .kn-machines__tablewrap { flex: 1.1; }
  .kn-machines__photo { flex: 0.9; margin-top: 34px; }
  .kn-quality__grid { flex-direction: row; justify-content: space-between; align-items: center; gap: 48px; }
  .kn-company__row { flex-direction: row; gap: 18px; padding: 14px 22px; }
  .kn-company__row dt { flex: 0 0 120px; padding-top: 4px; }
}

/* ============================================================
   デスクトップ(min-width: 960px)
   ============================================================ */
@media (min-width: 960px) {
  .kn-menu-toggle { display: none; }
  .kn-nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: 0;
    padding: 0;
    max-height: none;
    overflow: visible;
  }
  .kn-nav__list { flex-direction: row; }
  .kn-nav__link { border-bottom: 0; padding: 8px 12px; font-size: 0.88rem; }
  .kn-nav__cta { margin-top: 0; margin-left: 12px; }

  .kn-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 64px;
    padding: 82px 20px 88px;
  }
  .kn-hero__copy { flex: 1.15; }
  .kn-hero__figure { flex: 0 0 340px; width: 340px; }
  .kn-hero__title { font-size: clamp(2.7rem, 4.4vw, 3.7rem); }
}