/* ============================================================
   tsukururu.jp — common.css
   共通変数・リセット・ヘッダー・フッター・ボタン
   ============================================================ */

/* ===== CSS変数 ===== */
:root {
  --bg:         #0D0D0D;
  --bg-2:       #141414;
  --bg-3:       #1A1A1A;
  --bg-4:       #1F1F1F;
  --border:     rgba(255,255,255,.08);
  --border-mid: rgba(255,255,255,.13);
  --text-main:  #F0EDE8;
  --text-sub:   rgba(240,237,232,.48);
  --text-dim:   rgba(240,237,232,.28);
  --gold:       #C8A96E;
  --gold-dim:   rgba(200,169,110,.18);
  --gold-line:  rgba(200,169,110,.35);

  /* サービスアクセントカラー */
  --kiyaku-acc: #9090d8;
  --guide-acc:  #80c880;
  --pp-acc:     #d88080;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans:  'Noto Sans JP', sans-serif;
  --font-mono:  'Inter', sans-serif;
  --ease:       .22s ease;
  --radius:     8px;
}

/* ===== リセット ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== ヘッダー ===== */
.lp-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,13,13,.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.lp-header.scrolled { border-bottom-color: var(--border-mid); }

.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: 19px;
  letter-spacing: .12em;
  color: var(--text-main);
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
  margin-bottom: 3px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-nav a {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-sub);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 4px;
  letter-spacing: .04em;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--gold);
  border: 1px solid var(--gold-line);
  border-radius: 4px;
  padding: 7px 16px;
  text-decoration: none;
}

/* ===== ボタン ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--bg);
  background: var(--gold);
  border: 1px solid var(--gold);
  border-radius: 4px;
  padding: 13px 28px;
  text-decoration: none;
  cursor: pointer;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--text-sub);
  background: transparent;
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  padding: 13px 24px;
  text-decoration: none;
}

/* ===== フッター ===== */
.lp-footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 48px 40px 40px;
}
.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: start;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: 18px;
  letter-spacing: .12em;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 7px;
}
.footer-logo-mark {
  display: inline-block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  margin-bottom: 2px;
}
.footer-tagline {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 320px;
  margin-bottom: 20px;
}
.footer-op {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-dim);
  letter-spacing: .06em;
}
.footer-nav-title {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.footer-nav-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-nav-links a {
  font-size: 12.5px;
  color: var(--text-sub);
  text-decoration: none;
  letter-spacing: .02em;
}
/* フッター内の作成中モーダルトリガー */
.footer-wip-btn {
  display: flex;
  align-items: center;
  font-size: 12.5px;
  color: var(--text-sub);
  letter-spacing: .02em;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 300;
}
.footer-nav-links a .dot {
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  margin-bottom: 1px;
  opacity: .6;
}
.dot-k { background: var(--kiyaku-acc); }
.dot-g { background: var(--guide-acc); }
.dot-p { background: var(--pp-acc); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: .04em;
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 11px;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: .02em;
}
.footer-links a + a {
  padding-left: 20px;
  border-left: 1px solid var(--border);
}

/* ===== 利用規約・PP共通レイアウト ===== */
.doc-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 100px 40px 96px;
}
.doc-page-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.doc-page-eyebrow::before {
  content: '';
  display: block;
  width: 24px; height: 1px;
  background: var(--gold-line);
}
.doc-page-title {
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: clamp(24px, 4vw, 36px);
  letter-spacing: .06em;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.45;
}
.doc-page-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: .06em;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.doc-section {
  margin-bottom: 48px;
}
.doc-section-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.doc-section p {
  font-size: 13.5px;
  color: var(--text-sub);
  line-height: 2;
  margin-bottom: 14px;
}
.doc-section p:last-child { margin-bottom: 0; }
.doc-section ol,
.doc-section ul {
  padding-left: 1.5em;
  margin-bottom: 14px;
}
.doc-section li {
  font-size: 13.5px;
  color: var(--text-sub);
  line-height: 2;
  margin-bottom: 4px;
}
.doc-note {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 2px solid var(--gold-line);
  border-radius: 4px;
  padding: 16px 20px;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.85;
  margin-bottom: 14px;
}

/* ===== アニメーション ===== */
@keyframes scrollPulse {
  0%, 100% { opacity: .3; transform: scaleY(1); }
  50%       { opacity: .8; transform: scaleY(1.1); }
}

/* ===== レスポンシブ ===== */
@media (max-width: 900px) {
  .header-inner { padding: 0 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .lp-footer { padding: 40px 28px; }
  .doc-page { padding: 88px 28px 72px; }
}
@media (max-width: 680px) {
  .header-nav { display: none; }
  /* スマホでは「参加する」ボタンを非表示 */
  .header-cta--sp-hide { display: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
}