/* ============================================
   Codesh LP 共通スタイル
   主カラー: ネイビー / アクセント: ブルー
   ============================================ */
:root {
  --navy-900: #0a1830;
  --navy-800: #0f2244;
  --navy-700: #16305e;
  --navy-600: #1e3f7a;
  --navy-100: #e8eef8;
  --navy-50: #f4f7fc;
  --blue: #2f7cf6;
  --blue-strong: #1b5fd9;
  --blue-light: #6aa8ff;
  --cyan: #37c8e8;
  --amber: #ffb547;
  --text: #1b2940;
  --text-sub: #5a6b85;
  --white: #ffffff;
  --border: #dde5f0;
  --radius: 14px;
  --shadow-sm: 0 2px 8px rgba(15, 34, 68, .06);
  --shadow-md: 0 8px 30px rgba(15, 34, 68, .10);
  --shadow-lg: 0 20px 60px rgba(15, 34, 68, .16);
  --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  height: 72px; display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 22px; color: var(--navy-800); letter-spacing: -.02em; }
.brand .mark { width: 36px; height: 36px; flex: none; }
.gnav { display: flex; gap: 28px; margin-left: auto; font-size: 14px; font-weight: 500; color: var(--text-sub); }
.gnav a:hover { color: var(--blue-strong); }
.header-cta { margin-left: 8px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 700; border-radius: 999px; cursor: pointer; border: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  font-family: var(--font);
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-strong) 100%);
  color: #fff; padding: 14px 34px; font-size: 16px;
  box-shadow: 0 6px 20px rgba(47, 124, 246, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(47, 124, 246, .45); }
.btn-primary.sm { padding: 10px 24px; font-size: 14px; }
.btn-outline {
  background: #fff; color: var(--navy-800); padding: 13px 32px; font-size: 16px;
  border: 2px solid var(--navy-800);
}
.btn-outline:hover { background: var(--navy-50); transform: translateY(-2px); }
.btn-ghost-light {
  background: rgba(255,255,255,.12); color: #fff; padding: 13px 32px; font-size: 16px;
  border: 1px solid rgba(255,255,255,.45);
}
.btn-ghost-light:hover { background: rgba(255,255,255,.22); }

/* ---------- セクション共通 ---------- */
main { padding-top: 72px; }
section { padding: 96px 0; }
.sec-label {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .18em;
  color: var(--blue-strong); text-transform: uppercase; margin-bottom: 14px;
}
.sec-title { font-size: 38px; font-weight: 900; line-height: 1.45; letter-spacing: -.01em; color: var(--navy-900); }
.sec-lead { margin-top: 18px; color: var(--text-sub); font-size: 16px; }
.center { text-align: center; }
.accent { color: var(--blue-strong); }

/* ---------- ヒーロー ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(47, 124, 246, .22), transparent 60%),
    radial-gradient(800px 500px at -10% 110%, rgba(55, 200, 232, .14), transparent 55%),
    linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: #fff; padding: 120px 0 110px;
}
.hero .grid-bg {
  position: absolute; inset: 0; opacity: .35; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, #000 30%, transparent 75%);
}
.hero .container { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(106, 168, 255, .16); border: 1px solid rgba(106, 168, 255, .4);
  color: var(--blue-light); font-size: 13px; font-weight: 700;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 26px;
}
.hero h1 { font-size: 46px; font-weight: 900; line-height: 1.4; letter-spacing: -.01em; }
.hero h1 .price-em { color: var(--amber); }
.hero .lead { margin-top: 22px; font-size: 17px; color: rgba(255,255,255,.78); line-height: 2; }
.hero-ctas { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: rgba(255,255,255,.55); }
.hero-visual { position: relative; }

/* ---------- 実績バー ---------- */
.stats-bar { background: var(--navy-50); padding: 0; border-bottom: 1px solid var(--border); }
.stats-bar .inner {
  max-width: 1120px; margin: 0 auto; padding: 28px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.stat { text-align: center; padding: 8px 0; }
.stat + .stat { border-left: 1px solid var(--border); }
.stat .num { font-size: 30px; font-weight: 900; color: var(--navy-800); line-height: 1.3; }
.stat .num small { font-size: 15px; font-weight: 700; margin-left: 2px; }
.stat .label { font-size: 13px; color: var(--text-sub); margin-top: 2px; }

/* ---------- 課題 ---------- */
.pain { background: #fff; }
.pain-cards { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pain-card {
  background: var(--navy-50); border-radius: var(--radius); padding: 36px 28px;
  border: 1px solid var(--border); text-align: center;
}
.pain-card .icon { width: 72px; height: 72px; margin: 0 auto 20px; }
.pain-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); line-height: 1.6; }
.pain-card p { margin-top: 12px; font-size: 14px; color: var(--text-sub); text-align: left; }
.pain-arrow { text-align: center; margin: 44px 0 0; }

/* ---------- 特長 ---------- */
.features { background: linear-gradient(180deg, var(--navy-50) 0%, #fff 100%); }
.feature-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: #fff; border-radius: var(--radius); padding: 34px 28px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-card .f-icon {
  width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy-100), #dbeafe); margin-bottom: 20px;
}
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); }
.feature-card p { margin-top: 10px; font-size: 14px; color: var(--text-sub); }
.feature-card .f-tag {
  display: inline-block; font-size: 11px; font-weight: 700; color: var(--blue-strong);
  background: var(--navy-100); border-radius: 4px; padding: 2px 10px; margin-bottom: 12px; letter-spacing: .06em;
}

/* ---------- 仕組み図 ---------- */
.how { background: #fff; }
.how-diagram {
  margin-top: 56px; background: var(--navy-50); border: 1px solid var(--border);
  border-radius: 20px; padding: 48px 40px;
}

/* ---------- 料金 ---------- */
.pricing { background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 70%, var(--navy-700) 100%); color: #fff; position: relative; overflow: hidden; }
.pricing::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(900px 500px at 90% 0%, rgba(47,124,246,.25), transparent 60%);
}
.pricing .container { position: relative; }
.pricing .sec-label { color: var(--blue-light); }
.pricing .sec-title { color: #fff; }
.pricing .sec-lead { color: rgba(255,255,255,.7); }
.price-card {
  margin: 56px auto 0; max-width: 520px; background: #fff; color: var(--text);
  border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg);
}
.price-card .head {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-strong) 100%);
  color: #fff; text-align: center; padding: 22px; font-size: 18px; font-weight: 700; letter-spacing: .04em;
}
.price-card .body { padding: 40px 40px 44px; text-align: center; }
.price-line { display: flex; align-items: baseline; justify-content: center; gap: 6px; }
.price-line .yen { font-size: 26px; font-weight: 900; color: var(--navy-900); }
.price-line .num { font-size: 72px; font-weight: 900; color: var(--navy-900); letter-spacing: -.03em; line-height: 1; }
.price-line .unit { font-size: 18px; font-weight: 700; color: var(--text-sub); }
.price-tax { margin-top: 8px; font-size: 13px; color: var(--text-sub); }
.price-perks { margin-top: 28px; text-align: left; display: grid; gap: 12px; }
.price-perks li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; font-weight: 500; }
.price-perks li svg { flex: none; margin-top: 5px; }
.price-card .btn { margin-top: 32px; width: 100%; }

.compare-wrap { margin-top: 64px; overflow-x: auto; }
.compare-title { text-align: center; font-size: 22px; font-weight: 900; color: #fff; margin-bottom: 28px; }
table.compare {
  width: 100%; border-collapse: separate; border-spacing: 0; background: #fff; color: var(--text);
  border-radius: 16px; overflow: hidden; font-size: 14px; min-width: 640px;
}
table.compare th, table.compare td { padding: 16px 18px; text-align: center; border-bottom: 1px solid var(--border); }
table.compare thead th { background: var(--navy-50); font-weight: 700; color: var(--navy-900); }
table.compare thead th.hl { background: var(--blue-strong); color: #fff; font-size: 16px; }
table.compare tbody th { background: #fbfcfe; font-weight: 700; text-align: left; color: var(--navy-900); white-space: nowrap; }
table.compare td.hl { background: #eef5ff; font-weight: 900; color: var(--blue-strong); font-size: 15px; }
table.compare tbody tr:last-child th, table.compare tbody tr:last-child td { border-bottom: none; }
.compare-note { margin-top: 14px; font-size: 12px; color: rgba(255,255,255,.55); text-align: center; }

/* ---------- 導入フロー ---------- */
.flow { background: #fff; }
.flow-steps { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flow-step {
  position: relative; background: var(--navy-50); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 24px 28px; text-align: center;
}
.flow-step .no {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
  width: 34px; height: 34px; border-radius: 50%; background: var(--blue-strong); color: #fff;
  font-weight: 900; font-size: 15px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(27, 95, 217, .4);
}
.flow-step h3 { font-size: 16px; font-weight: 700; color: var(--navy-900); margin-top: 10px; }
.flow-step p { margin-top: 8px; font-size: 13px; color: var(--text-sub); }
.flow-step .icon { width: 56px; height: 56px; margin: 4px auto 0; }
.flow-note { text-align: center; margin-top: 36px; font-size: 15px; font-weight: 700; color: var(--navy-800); }

/* ---------- FAQ ---------- */
.faq { background: var(--navy-50); }
.faq-list { margin-top: 48px; max-width: 800px; margin-left: auto; margin-right: auto; display: grid; gap: 14px; }
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 20px 52px 20px 24px; font-weight: 700; font-size: 15px; color: var(--navy-900);
  position: relative; list-style: none; display: flex; gap: 12px; align-items: baseline;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  font-size: 22px; font-weight: 400; color: var(--blue-strong); transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .q-mark, .faq-item .a-mark { font-weight: 900; color: var(--blue-strong); flex: none; }
.faq-item .a-mark { color: var(--amber); }
.faq-item .answer { padding: 0 24px 22px; font-size: 14px; color: var(--text-sub); display: flex; gap: 12px; }

/* ---------- CTA ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: #fff; text-align: center; position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 400px at 50% 120%, rgba(47,124,246,.35), transparent 65%);
}
.cta-band .container { position: relative; }
.cta-band h2 { font-size: 34px; font-weight: 900; line-height: 1.5; }
.cta-band p { margin-top: 16px; color: rgba(255,255,255,.75); }
.cta-band .hero-ctas { justify-content: center; }

/* ---------- フッター ---------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.65); padding: 56px 0 32px; font-size: 13px; }
.site-footer .cols { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.site-footer .brand { color: #fff; margin-bottom: 12px; font-size: 19px; }
.site-footer .desc { max-width: 340px; line-height: 1.9; }
.site-footer nav { display: flex; gap: 48px; flex-wrap: wrap; }
.site-footer nav h4 { color: #fff; font-size: 13px; font-weight: 700; margin-bottom: 14px; letter-spacing: .08em; }
.site-footer nav ul { display: grid; gap: 10px; }
.site-footer nav a:hover { color: #fff; }
.site-footer .copy { margin-top: 44px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); text-align: center; font-size: 12px; color: rgba(255,255,255,.4); }

/* ---------- 下層ページ共通 ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: #fff; padding: 72px 0 56px; text-align: center;
}
.page-hero h1 { font-size: 32px; font-weight: 900; }
.page-hero p { margin-top: 10px; color: rgba(255,255,255,.7); font-size: 14px; }
.page-body { padding: 72px 0 96px; }
.page-body .prose { max-width: 800px; margin: 0 auto; }
.prose h2 { font-size: 22px; font-weight: 700; color: var(--navy-900); margin: 44px 0 16px; padding-left: 14px; border-left: 4px solid var(--blue-strong); }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { font-size: 15px; color: var(--text); }
.prose ol, .prose ul { padding-left: 24px; margin: 12px 0; }
.prose ol li { list-style: decimal; margin-bottom: 6px; }
.prose ul li { list-style: disc; margin-bottom: 6px; }
.prose table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.prose table th, .prose table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; vertical-align: top; }
.prose table th { background: var(--navy-50); font-weight: 700; white-space: nowrap; width: 200px; color: var(--navy-900); }

/* ---------- フォーム ---------- */
.form-card {
  max-width: 720px; margin: 0 auto; background: #fff; border: 1px solid var(--border);
  border-radius: 20px; padding: 48px; box-shadow: var(--shadow-md);
}
.form-row { margin-bottom: 26px; }
.form-row label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 8px; color: var(--navy-900); }
.req { display: inline-block; background: #e5484d; color: #fff; font-size: 11px; font-weight: 700; border-radius: 4px; padding: 1px 8px; margin-left: 8px; vertical-align: 2px; }
.opt { display: inline-block; background: #9aa8bd; color: #fff; font-size: 11px; font-weight: 700; border-radius: 4px; padding: 1px 8px; margin-left: 8px; vertical-align: 2px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--border); border-radius: 10px;
  font-size: 15px; font-family: var(--font); background: #fbfcfe; color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,124,246,.15); background: #fff;
}
.form-row textarea { min-height: 160px; resize: vertical; }
.form-agree { text-align: center; font-size: 13px; color: var(--text-sub); margin-bottom: 24px; }
.form-agree a { color: var(--blue-strong); text-decoration: underline; }
.form-card .btn { width: 100%; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 36px; }
  .pain-cards, .feature-grid { grid-template-columns: 1fr 1fr; }
  .flow-steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .stats-bar .inner { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: none; }
  .gnav { display: none; }
}
@media (max-width: 600px) {
  section { padding: 64px 0; }
  .sec-title { font-size: 27px; }
  .hero { padding: 88px 0 72px; }
  .hero h1 { font-size: 30px; }
  .pain-cards, .feature-grid, .flow-steps { grid-template-columns: 1fr; }
  .price-line .num { font-size: 56px; }
  .form-card { padding: 32px 22px; }
  .cta-band h2 { font-size: 24px; }
  .site-footer .cols { flex-direction: column; }
}