/* 株式会社工科堂 コーポレートサイト。色・フォントは tokens.css（brand/tokens.css のコピー）の変数のみを使う。
   方針: 親しみやすさ優先。白地・広い余白・やわらかい角。名刺と同じ「緑＋若葉色の帯」をモチーフにする。 */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--brand-font-sans);
  color: var(--brand-text);
  background: var(--brand-bg);
  font-size: 16px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 { line-height: 1.45; text-wrap: balance; word-break: auto-phrase; margin: 0; }
.hero-lead { word-break: auto-phrase; }
p { margin: 0; }
a { color: var(--brand-primary); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--brand-secondary); outline-offset: 3px; }

.wrap { max-width: 1040px; margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 760px; }
.wrap.narrow { max-width: 800px; }
.sp { display: none; }
@media (max-width: 600px) { .sp { display: inline; } }

/* ボタン */
.btn {
  display: inline-block;
  background: var(--brand-primary);
  color: var(--brand-bg);
  font-weight: 700;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px color-mix(in srgb, var(--brand-primary) 25%, transparent); }
.btn-small { padding: 8px 18px; font-size: 14px; }
.btn-light { background: var(--brand-bg); color: var(--brand-primary); }

/* ヘッダー */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--brand-bg);
  border-bottom: 1px solid var(--brand-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.logo { display: flex; flex-direction: column; text-decoration: none; line-height: 1.2; }
.logo-ja { color: var(--brand-primary); font-weight: 700; font-size: 18px; letter-spacing: .06em; }
.logo-en { color: var(--brand-text-muted); font-size: 11px; letter-spacing: .1em; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.site-nav ul a { color: var(--brand-text); text-decoration: none; font-size: 14px; }
.site-nav ul a:hover { color: var(--brand-primary); }
@media (max-width: 720px) { .site-nav ul { display: none; } }

/* トップ */
.hero { position: relative; background: var(--brand-bg-subtle); overflow: hidden; }
.hero-band {
  position: absolute; inset: 0 auto 0 0; width: 14px;
  background: var(--brand-primary);
  box-shadow: 6px 0 0 var(--brand-secondary);
}
.hero-inner { padding-block: 88px 96px; display: grid; gap: 20px; }
.hero-eyebrow { color: var(--brand-primary); font-weight: 700; letter-spacing: .12em; font-size: 14px; }
.hero h1 { font-size: clamp(30px, 5.4vw, 52px); font-weight: 700; color: var(--brand-text); letter-spacing: .02em; }
.hero-lead { font-size: clamp(16px, 2vw, 19px); color: var(--brand-text); max-width: 46em; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 12px; }
.hero-note { color: var(--brand-text-muted); font-size: 14px; }
@media (max-width: 600px) { .hero-inner { padding-block: 56px 64px; padding-left: 36px; } }

/* セクション共通 */
.section { padding-block: 80px; }
.section-subtle { background: var(--brand-bg-subtle); }
.section h2 { font-size: clamp(22px, 3.2vw, 30px); color: var(--brand-primary); margin-bottom: 32px; }
.section h2::after {
  content: ""; display: block; width: 56px; height: 6px; margin-top: 14px;
  border-radius: 3px; background: var(--brand-secondary);
}
.section p + p { margin-top: 1em; }
.lead { margin-bottom: 32px; }
@media (max-width: 600px) { .section { padding-block: 56px; } }

/* 事業内容 */
.cards { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--brand-bg);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  padding: 28px 24px;
  display: grid; gap: 12px; align-content: start;
}
.card-icon { width: 48px; height: 48px; fill: none; stroke: var(--brand-primary); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.card-icon circle { fill: var(--brand-primary); stroke: none; }
.card h3 { font-size: 19px; color: var(--brand-text); }
.cards-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 720px) { .cards-2 { grid-template-columns: 1fr; } }

/* 技術・実績 */
.works { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.work { border-top: 4px solid var(--brand-primary); padding-top: 18px; display: grid; gap: 10px; align-content: start; }
.work h3 { font-size: 17px; color: var(--brand-text); }
.work p { font-size: 15px; }
.subhead { font-size: 18px; color: var(--brand-text); margin: 48px 0 16px; }
.table-wrap { overflow-x: auto; }
.deals { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.deals th, .deals td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--brand-border); vertical-align: top; }
.deals th { background: var(--brand-bg-subtle); font-weight: 500; font-size: 14px; color: var(--brand-text-muted); }
.deals td:first-child { white-space: nowrap; font-variant-numeric: tabular-nums; }
.deals td:last-child, .deals th:last-child { white-space: nowrap; }

/* 代表者紹介 */
.profile { background: var(--brand-bg); border-radius: var(--brand-radius); padding: 32px 28px; border-left: 6px solid var(--brand-primary); }
.profile-title { color: var(--brand-text-muted); font-size: 14px; }
.profile-name { font-size: 26px; font-weight: 700; letter-spacing: .1em; margin: 4px 0 16px !important; }
.profile-name span { display: block; font-size: 13px; font-weight: 400; letter-spacing: .08em; color: var(--brand-text-muted); }

/* 会社概要 */
.company { margin: 0; border-top: 1px solid var(--brand-border); }
.company div { display: grid; grid-template-columns: 9em 1fr; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--brand-border); }
.company dt { font-weight: 700; color: var(--brand-text-muted); }
.company dd { margin: 0; min-width: 0; }
@media (max-width: 600px) { .company div { grid-template-columns: 1fr; gap: 2px; } }

/* お問い合わせ */
.contact { background: var(--brand-primary); color: var(--brand-bg); padding-block: 80px; text-align: center; }
.contact h2 { font-size: clamp(22px, 3.2vw, 30px); margin-bottom: 20px; }
.contact-mail { font-size: clamp(20px, 3vw, 26px); font-weight: 700; letter-spacing: .04em; margin-top: 20px !important; user-select: all; }

/* フッター */
.site-footer { padding-block: 28px; color: var(--brand-text-muted); font-size: 13px; text-align: center; }