@charset "UTF-8";

/* ============================================
   STOCK. / チャレンジSEO — note運用代行LP
   Design tokens extracted from the Claude Design mock
   ============================================ */

:root {
  --cream: #FBFAF7;
  --beige: #EDEAE1;
  --tint: #F4F2EC;
  --ink: #16201C;
  --text-muted: #4A544F;
  --text-faint: #8A928D;
  --white: #ffffff;

  --accent: #0E6E5C;
  --accent-deep: #004d37;
  --mint: #BFF0DC;
  --grad-1: #003b2a;
  --grad-2: #0a6b4d;
  --grad-3: #1B9B6E;

  --footer-bg: #1a1a1a;

  --font-sans: 'Zen Kaku Gothic New', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Shippori Mincho B1', serif;
  --font-mono: 'DM Mono', monospace;

  --wrap: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }
.wrap--narrow { max-width: 1000px; }
.wrap--tight { max-width: 820px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 20px;
}

.section { padding: 112px 0 96px; }
.section--band { padding: 104px 0; }

.section-title {
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  max-width: 20em;
}
.section-title .accent { color: var(--accent); }

.section-lead {
  font-size: 15.5px;
  line-height: 2;
  color: var(--text-muted);
  max-width: 34em;
  margin-bottom: 48px;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  padding: 16px 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, opacity .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent); color: #fff; font-weight: 500; }
.btn--primary:hover { opacity: .92; }
.btn--outline { border-color: rgba(22,32,28,.2); color: var(--ink); font-weight: 500; }
.btn--outline:hover { border-color: var(--ink); }
.btn--white { background: #fff; color: var(--ink); }
.btn--ghost-onaccent { border-color: rgba(255,255,255,.5); color: #fff; font-weight: 500; }
.btn--block { display: flex; width: 100%; text-align: center; }
.btn--sm { padding: 12px 22px; font-size: 13.5px; border-radius: 8px; font-weight: 700; }

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(22,32,28,.08);
}
.site-header .wrap {
  max-width: 1200px;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo img { height: 48px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav ul { display: flex; gap: 28px; }
.main-nav a { font-size: 14px; color: #3A423E; transition: color .2s ease; }
.main-nav a:hover { color: var(--accent); }
.header-cta { background: var(--accent-deep); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 1px; background: var(--ink); }

/* ============ HERO ============ */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 32px 80px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-title .accent { color: var(--accent); }
.hero-body {
  font-size: 16.5px;
  line-height: 2;
  color: var(--text-muted);
  max-width: 31em;
  margin-bottom: 26px;
}
.hero-body strong { color: var(--ink); }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.tag {
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  background: var(--cream);
  border: 1px solid rgba(22,32,28,.14);
  border-radius: 999px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* note mock card */
.note-mock-wrap { position: relative; }
.note-mock-wrap::before {
  content: '';
  position: absolute;
  inset: -14px -14px 24px 24px;
  background: var(--accent);
  opacity: .1;
  border-radius: 20px;
}
.note-mock {
  position: relative;
  background: var(--cream);
  border: 1px solid rgba(22,32,28,.1);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 30px 60px -30px rgba(22,32,28,.3);
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.note-mock__head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.note-mock__avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.note-mock__name { font-size: 13px; font-weight: 500; }
.note-mock__handle { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); }

.note-mock__panel {
  border-radius: 10px;
  height: 150px;
  background: linear-gradient(135deg, var(--grad-1) 0%, var(--grad-2) 55%, var(--grad-3) 100%);
  position: relative;
  overflow: hidden;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.note-mock__panel::before {
  content: '';
  position: absolute;
  right: -30px; bottom: -40px;
  width: 150px; height: 150px;
  border: 14px solid rgba(255,255,255,.08);
  border-radius: 50%;
}
.note-mock__watermark {
  position: absolute;
  right: 18px; top: 16px;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 500;
  color: rgba(255,255,255,.22);
}
.note-mock__badge {
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--grad-1);
  background: #fff;
  padding: 4px 11px;
  border-radius: 999px;
  position: relative;
}
.note-mock__headline {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  line-height: 1.45;
  position: relative;
}
.note-mock__headline .mint { color: var(--mint); }

.note-mock__caption {
  margin-top: 14px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}
.note-mock__bar { height: 8px; background: rgba(22,32,28,.08); border-radius: 4px; margin-top: 12px; }
.note-mock__bar--short { width: 82%; margin-top: 8px; }
.note-mock__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-faint);
}
.note-mock__meta .up { color: var(--accent); font-weight: 500; }
.note-mock__meta .time { margin-left: auto; font-family: var(--font-mono); }

/* ============ POSITIONING (01) ============ */
.positioning { background: var(--beige); text-align: center; }
.positioning .eyebrow { margin: 0 auto 28px; }
.positioning .section-title { max-width: 24em; margin: 0 auto; }

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(22,32,28,.12);
  border: 1px solid rgba(22,32,28,.12);
  border-radius: 14px;
  overflow: hidden;
  margin-top: 56px;
}
.flow-card { background: var(--cream); padding: 30px 20px; text-align: left; }
.flow-card__title { font-size: 15px; font-weight: 700; }
.flow-card__desc { font-size: 13px; color: var(--text-muted); margin-top: 8px; line-height: 1.7; }

/* ============ WHY US (02) ============ */
.why-rows { display: flex; flex-direction: column; }
.why-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  padding: 44px 0;
  border-top: 1px solid rgba(22,32,28,.14);
}
.why-row:last-child { border-bottom: 1px solid rgba(22,32,28,.14); }
.why-row__num {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.why-row__content {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
}
.why-row__title { font-size: 25px; font-weight: 700; margin-bottom: 14px; }
.why-row__desc { font-size: 15.5px; line-height: 2; color: var(--text-muted); }
.why-row__desc strong { color: var(--ink); }
.why-row__note {
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-faint);
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--beige);
  border-radius: 10px;
}
.why-row__note strong { color: var(--text-muted); }
.why-row ul { display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--text-muted); }
.why-row li { display: flex; gap: 10px; }
.why-row li span { color: var(--accent); flex-shrink: 0; }

/* ============ HOW IT WORKS (03) ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step { background: var(--cream); border-radius: 16px; padding: 30px 26px; }
.step__label { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-bottom: 20px; }
.step__title { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.step__desc { font-size: 14px; line-height: 1.9; color: var(--text-muted); }

/* ============ SCOPE (04) ============ */
.scope-box {
  border: 1px solid rgba(22,32,28,.14);
  border-radius: 14px;
  overflow: hidden;
}
.scope-table {
  width: 100%;
  border-collapse: collapse;
}
.scope-table th {
  background: var(--ink);
  color: var(--tint);
  text-align: left;
  padding: 14px 24px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-mono);
}
.scope-table th:first-child { width: 180px; }
.scope-table td {
  background: var(--cream);
  padding: 16px 24px;
  border-top: 1px solid rgba(22,32,28,.08);
}
.scope-table tr:first-child td { border-top: none; }
.scope-table td:first-child { font-size: 14.5px; font-weight: 700; }
.scope-table td:last-child { font-size: 14px; color: var(--text-muted); }

/* ============ USE CASES (05) ============ */
.usecases { background: var(--beige); }
.usecase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.usecase-card {
  background: var(--cream);
  border: 1px solid rgba(22,32,28,.1);
  border-radius: 16px;
  padding: 34px;
}
.usecase-card__type { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-bottom: 14px; }
.usecase-card__title { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.usecase-card__desc { font-size: 14.5px; line-height: 1.9; color: var(--text-muted); }
.usecase-card__fit { font-size: 12.5px; color: var(--text-faint); line-height: 1.8; margin-top: 18px; }

/* ============ TRACK RECORD (06) ============ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}
.stat-card { background: var(--cream); border: 1px solid rgba(22,32,28,.1); border-radius: 16px; padding: 32px; }
.stat-card__num { font-family: var(--font-serif); font-size: 44px; font-weight: 700; color: var(--accent); line-height: 1; }
.stat-card__label { font-size: 14px; color: var(--text-muted); margin-top: 14px; line-height: 1.7; }

.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.pill { font-size: 13px; padding: 8px 16px; background: var(--beige); border-radius: 999px; }
.track-foot { font-size: 12.5px; line-height: 1.8; color: var(--text-faint); }

/* ============ PRICING (07) ============ */
.pricing { background: var(--beige); }
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: start;
}
.price-card {
  background: var(--cream);
  border: 1px solid rgba(22,32,28,.12);
  border-radius: 20px;
  padding: 38px 32px;
}
.price-card--featured {
  border: 2px solid var(--accent-deep);
  box-shadow: 0 30px 60px -28px rgba(0,77,55,.35);
}
.price-card__head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.price-card__name { font-size: 20px; font-weight: 700; }
.price-card__badge {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
}
.price-card--featured .price-card__badge { background: var(--accent-deep); }
.price-card__desc { font-size: 13px; opacity: .65; margin-bottom: 20px; }
.price-card__price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 26px; }
.price-card__price .pre { font-size: 16px; }
.price-card__price .num { font-family: var(--font-serif); font-size: 40px; font-weight: 700; }
.price-card__price .unit { font-size: 20px; }
.price-card ul { display: flex; flex-direction: column; gap: 12px; font-size: 14px; margin-bottom: 30px; }
.price-card li { display: flex; gap: 10px; }
.price-card li span { color: var(--accent); }

.price-note {
  margin-top: 24px;
  background: var(--cream);
  border: 1px dashed rgba(22,32,28,.25);
  border-radius: 16px;
  padding: 26px 32px;
}
.price-note__title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.price-note__title span { font-size: 12.5px; font-weight: 400; color: var(--accent); margin-left: 10px; }
.price-note__desc { font-size: 13.5px; color: var(--text-muted); line-height: 1.8; }

/* ============ DIFFERENCE (08) ============ */
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 56px;
}
.diff-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid rgba(22,32,28,.14);
}
.diff-item:nth-last-child(-n+2) { border-bottom: 1px solid rgba(22,32,28,.14); }
.diff-item__num { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--accent); flex-shrink: 0; }
.diff-item__title { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.diff-item__desc { font-size: 14px; line-height: 1.85; color: var(--text-muted); }

/* ============ FAQ (09) ============ */
.faq { background: var(--beige); }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--cream); border-radius: 14px; padding: 26px 30px; }
.faq-q {
  font-size: 16.5px;
  font-weight: 700;
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
}
.faq-q span { color: var(--accent); font-family: var(--font-mono); flex-shrink: 0; }
.faq-a { font-size: 14.5px; line-height: 1.9; color: var(--text-muted); padding-left: 28px; }

/* ============ CTA ============ */
.cta { background: var(--accent); color: #fff; text-align: center; padding: 120px 0; }
.cta .eyebrow { color: rgba(255,255,255,.75); text-align: center; margin: 0 auto 28px; }
.cta-title { font-size: clamp(28px, 4vw, 46px); font-weight: 700; line-height: 1.35; letter-spacing: -0.02em; margin-bottom: 24px; }
.cta-body { font-size: 16.5px; line-height: 2; color: rgba(255,255,255,.85); max-width: 30em; margin: 0 auto 40px; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cta-foot { margin-top: 24px; font-size: 13px; color: rgba(255,255,255,.7); }

/* ============ FOOTER ============ */
.site-footer { background: var(--footer-bg); color: rgba(255,255,255,.68); }
.footer-grid {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 32px 40px;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand a { font-size: 15px; font-weight: 700; color: #fff; }
.footer-brand__desc { font-size: 13.5px; line-height: 1.9; max-width: 24em; margin-top: 16px; }
.footer-brand__label { font-size: 13.5px; font-weight: 700; color: #fff; margin: 24px 0 8px; }
.footer-brand__contact { font-size: 13.5px; line-height: 1.9; }
.footer-col-title { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col-title--spaced { margin: 24px 0 16px; }
.footer-nav { display: flex; flex-direction: column; gap: 11px; font-size: 13.5px; }
.footer-nav a:hover { color: #fff; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom .wrap {
  max-width: 1180px;
  padding: 20px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,.45);
}
.footer-companies { display: flex; flex-wrap: wrap; gap: 8px 16px; }

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .note-mock { animation: none; }
  html { scroll-behavior: auto; }
}