/* ==========================================================
   津久見商工会議所 研修用デモサイト
   スマートフォン対応（モバイルファースト）
   ========================================================== */

:root {
  --color-primary: #0b5e8a;      /* 海の青 */
  --color-primary-dark: #084766;
  --color-accent: #f28c28;       /* みかんの橙 */
  --color-text: #1f2a30;
  --color-muted: #5b6b74;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f8fa;
  --color-line: #d9e2e8;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(11, 94, 138, 0.08);
  --container: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-primary); }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3 { line-height: 1.4; margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- デモ注意書き ---------- */
.demo-notice {
  background: #fff4e5;
  color: #7a4a00;
  border-bottom: 1px solid #f3d9b0;
  font-size: 13px;
  line-height: 1.6;
  padding: 8px 16px;
  text-align: center;
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-weight: 700; font-size: 17px; }
.brand-sub { font-size: 11px; color: var(--color-muted); }

/* ハンバーガー（CSSのみ） */
.nav-toggle { position: absolute; opacity: 0; width: 0; height: 0; }

.nav-button {
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  border-radius: 8px;
}
.nav-button:hover { background: var(--color-bg-alt); }
.nav-button span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle:checked + .nav-button span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle:checked + .nav-button span:nth-child(2) { opacity: 0; }
.nav-toggle:checked + .nav-button span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow);
  display: none;
}
.nav-toggle:checked ~ .site-nav { display: block; }

.site-nav ul { list-style: none; margin: 0; padding: 8px 0; }
.site-nav a {
  display: block;
  padding: 12px 20px;
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text);
}
.site-nav a:hover { background: var(--color-bg-alt); color: var(--color-primary); }

/* ---------- ヒーロー ---------- */
.hero {
  background: linear-gradient(180deg, #eaf4fa 0%, #ffffff 100%);
  padding: 40px 0 32px;
}

.hero-inner { display: flex; flex-direction: column; gap: 24px; }

.hero-eyebrow {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 14px;
}

.hero h1 {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-bottom: 14px;
}

.hero-lead { margin: 0 0 20px; color: var(--color-muted); }

.pc-only { display: none; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-outline { border-color: var(--color-primary); color: var(--color-primary); background: #fff; }
.btn-outline:hover { background: var(--color-primary); color: #fff; }

.hero-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- セクション共通 ---------- */
.section { padding: 48px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary-dark);
  padding-left: 14px;
  border-left: 6px solid var(--color-accent);
  margin-bottom: 20px;
}

.section-lead { margin: 0 0 24px; color: var(--color-muted); }

/* ---------- お知らせ ---------- */
.news-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--color-line); }
.news-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
}
.news-list time { color: var(--color-muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.news-list a { flex-basis: 100%; text-decoration: none; }
.news-list a:hover { text-decoration: underline; }

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  padding: 5px 10px;
  border-radius: 999px;
  background: #e6f1f7;
  color: var(--color-primary);
}
.tag-event { background: #fff0e0; color: #b35c00; }

/* ---------- 事業案内（カード） ---------- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: var(--shadow);
}
.card img { width: 56px; height: 56px; margin-bottom: 12px; }
.card h3 { font-size: 18px; color: var(--color-primary-dark); margin-bottom: 8px; }
.card p { margin: 0; font-size: 15px; color: var(--color-muted); }

/* ---------- 会員になるには ---------- */
.steps {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.steps li {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 20px 20px 20px 64px;
}
.step-num {
  position: absolute;
  left: 18px;
  top: 18px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps h3 { font-size: 17px; margin-bottom: 4px; }
.steps p { margin: 0; font-size: 15px; color: var(--color-muted); }

.fee-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: 15px;
}
.fee-table caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
}
.fee-table th, .fee-table td {
  border: 1px solid var(--color-line);
  padding: 10px 12px;
  text-align: left;
}
.fee-table thead th { background: var(--color-bg-alt); }
.fee-table td:last-child { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- アクセス ---------- */
.access-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }

.access-info dl { margin: 0; }
.access-info dt {
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-top: 14px;
}
.access-info dt:first-child { margin-top: 0; }
.access-info dd { margin: 2px 0 0; }

.access-map img {
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  background: #fff;
}

/* ---------- フッター ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #dbe9f1;
  padding: 28px 0;
  font-size: 14px;
  text-align: center;
}
.site-footer p { margin: 0; }
.footer-note { margin-top: 6px !important; font-size: 12px; opacity: 0.85; }

/* ==========================================================
   タブレット以上（768px〜）
   ========================================================== */
@media (min-width: 768px) {
  .nav-button { display: none; }

  .site-nav {
    position: static;
    display: block;
    background: transparent;
    border: 0;
    box-shadow: none;
  }
  .site-nav ul { display: flex; gap: 4px; padding: 0; }
  .site-nav a { padding: 10px 14px; border-radius: 8px; }

  .hero { padding: 56px 0 48px; }
  .hero-inner { flex-direction: row; align-items: center; gap: 40px; }
  .hero-text { flex: 1 1 50%; }
  .hero-image { flex: 1 1 50%; }
  .hero h1 { font-size: 40px; }
  .pc-only { display: inline; }

  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }

  .news-list li { flex-wrap: nowrap; }
  .news-list time { flex: 0 0 auto; }
  .news-list a { flex-basis: auto; flex: 1 1 auto; }

  .card-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .access-grid { grid-template-columns: 1fr 1.2fr; align-items: start; }
}

/* ==========================================================
   デスクトップ（1024px〜）
   ========================================================== */
@media (min-width: 1024px) {
  .hero h1 { font-size: 46px; }
  .card-grid { grid-template-columns: repeat(4, 1fr); }
}