/* RE:web Branding Design — shared design system
   RE:START のデザイン言語を継承（Shippori Mincho / Cormorant Garamond / gold #d4b787 / 余白）。
   ファーストビューは白・現代的に。 */

:root {
  --white: #ffffff;
  --off-white: #fafaf8;
  --cream: #fefcf6;
  --cream-2: #faf5e9;
  --ink: #1a1a1a;
  --ink-soft: #333333;
  --gray: #767676;
  --gray-light: #b8b8b8;
  --line: #e5e3df;
  --gold: #d4b787;
  --gold-deep: #b59556;
  --blue: #7fa4b3;
  --footer: #2d2622;
  --footer-text: rgba(255, 255, 255, 0.82);
  --serif: "Shippori Mincho", "Noto Serif JP", "游明朝", "Yu Mincho", serif;
  --lat: "Cormorant Garamond", serif;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--serif);
  background: var(--white);
  color: var(--ink);
  line-height: 2;
  font-size: 15.5px;
  font-weight: 400;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
::selection { background: rgba(212, 183, 135, 0.28); }
:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 3px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

.section { padding: 120px 0; position: relative; }
.section--tint { background: var(--off-white); }
.section--cream { background: var(--cream); }

.eyebrow {
  font-family: var(--lat);
  font-style: italic;
  font-weight: 300;
  font-size: 14px;
  letter-spacing: 0.4em;
  color: var(--gray);
  text-transform: uppercase;
  display: block;
}

.rule { width: 40px; height: 1px; background: var(--gold); border: 0; }
.rule--center { margin: 20px auto 0; }

.section-head { text-align: center; margin-bottom: 70px; }
.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 27px;
  line-height: 1.7;
  letter-spacing: 0.08em;
  margin-top: 20px;
}
.section-lead {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 2.1;
  max-width: 36em;
  margin: 18px auto 0;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 32px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo { font-family: var(--lat); font-weight: 500; font-size: 23px; letter-spacing: 0.02em; }
.logo .c { color: var(--gold-deep); }
.nav-links { display: flex; gap: 26px; font-size: 12.5px; color: var(--gray); letter-spacing: 0.14em; }
.nav-links a:hover { color: var(--ink); }

/* ---------- Hero (white first view) ---------- */
.hero { text-align: center; padding: 92px 32px 70px; }
.hero .eyebrow { display: inline-block; }
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.72;
  letter-spacing: 0.07em;
  margin-top: 22px;
}
.hero-sub {
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 2.2;
  max-width: 34em;
  margin: 24px auto 0;
}
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 26px; margin-top: 36px; flex-wrap: wrap; }

/* ---------- Buttons / links ---------- */
.btn {
  font-family: var(--serif);
  font-size: 13.5px;
  letter-spacing: 0.16em;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 15px 34px;
  display: inline-block;
  transition: background 0.25s ease, color 0.25s ease;
}
.btn:hover { background: var(--ink); color: var(--white); }
.btn--gold { border-color: var(--gold-deep); color: var(--gold-deep); }
.btn--gold:hover { background: var(--gold-deep); color: var(--white); }
.link-u {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--gray);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 3px;
}
.link-u:hover { color: var(--ink); }

/* ---------- Before / After (signature) ---------- */
.ba {
  display: grid;
  grid-template-columns: 1fr 56px 1fr;
  align-items: stretch;
  gap: 0;
  max-width: 760px;
  margin: 0 auto;
}
.ba-frame {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--white);
  text-align: left;
}
.ba-frame--after { border-color: var(--gold); box-shadow: 0 30px 50px -34px rgba(181, 149, 86, 0.6); }
.ba-bar { display: flex; gap: 6px; padding: 11px 13px; border-bottom: 1px solid var(--line); background: var(--off-white); }
.ba-bar i { width: 8px; height: 8px; border-radius: 50%; background: #d8d4cb; display: block; }
.ba-frame--after .ba-bar { background: var(--cream); }
.ba-frame--after .ba-bar i:nth-child(1) { background: var(--gold); }
.ba-frame--after .ba-bar i:nth-child(2) { background: var(--blue); }
.ba-frame--after .ba-bar i:nth-child(3) { background: #cdbf9c; }
.ba-body { padding: 20px 20px 24px; }
.ba-lab {
  font-family: var(--lat);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: var(--gray-light);
}
.ba-frame--after .ba-lab { color: var(--gold-deep); }
.ba-t { font-size: 17px; letter-spacing: 0.04em; margin-bottom: 12px; }
.ba-frame--before .ba-t, .ba-frame--before .ba-li { color: #9b988f; }
.ba-li { font-size: 12.5px; line-height: 2; color: var(--gray); }
.ba-li span { display: block; }
.ba-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--lat);
  font-size: 30px;
  color: var(--gold-deep);
}

/* ---------- Genre index (homepage) ---------- */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.genre-cell {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 34px 28px;
  display: block;
  transition: background 0.25s ease;
}
.genre-cell:hover { background: var(--cream); }
.genre-cell .num { font-family: var(--lat); font-style: italic; font-size: 14px; color: var(--gold-deep); letter-spacing: 0.2em; }
.genre-cell .name { font-size: 19px; letter-spacing: 0.06em; margin: 10px 0 8px; }
.genre-cell .desc { font-size: 12.5px; color: var(--gray); line-height: 1.9; }
.genre-cell .go { font-family: var(--lat); font-style: italic; font-size: 13px; color: var(--gold-deep); margin-top: 14px; display: inline-block; }

/* ---------- Feature / module list ---------- */
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.col {
  padding: 38px 30px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.col:first-child { border-left: 1px solid var(--line); }
.col .k { font-family: var(--lat); font-style: italic; font-size: 13px; letter-spacing: 0.2em; color: var(--gold-deep); }
.col h3 { font-size: 17px; letter-spacing: 0.05em; margin: 12px 0 10px; font-weight: 500; }
.col p { font-size: 13px; color: var(--gray); line-height: 2; }

/* ---------- Gallery (reference directions) ---------- */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.card {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--white);
}
.card-vis {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--cream) 0%, var(--off-white) 100%);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--lat);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}
.card-vis--blue { background: linear-gradient(135deg, #eef4f6 0%, var(--off-white) 100%); }
.card-vis--ink { background: linear-gradient(135deg, #232020 0%, #3a3430 100%); color: var(--cream); }
.card-body { padding: 18px 20px 22px; }
.card-body h3 { font-size: 15.5px; letter-spacing: 0.04em; margin-bottom: 8px; font-weight: 500; }
.card-body p { font-size: 12.5px; color: var(--gray); line-height: 1.95; }
.card-body .ref { display: inline-block; margin-top: 12px; font-size: 12px; color: var(--gold-deep); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }

/* ---------- Reflection (今の仕事との向き合い方) ---------- */
.reflect { max-width: 38em; margin: 0 auto; text-align: center; }
.reflect p { font-size: 16px; line-height: 2.3; letter-spacing: 0.06em; color: var(--ink-soft); }
.reflect p + p { margin-top: 24px; }
.reflect .em { color: var(--ink); }

/* ---------- Steps (分析→提案) ---------- */
.steps { max-width: 720px; margin: 0 auto; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 22px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.step:first-child { border-top: 1px solid var(--line); }
.step .n { font-family: var(--lat); font-style: italic; font-size: 26px; color: var(--gold-deep); line-height: 1.4; }
.step h3 { font-size: 17px; letter-spacing: 0.05em; margin-bottom: 8px; font-weight: 500; }
.step p { font-size: 13px; color: var(--gray); line-height: 2; }

/* ---------- CTA ---------- */
.cta { text-align: center; }
.cta h2 { font-size: clamp(22px, 3.2vw, 30px); line-height: 1.7; letter-spacing: 0.08em; font-weight: 500; }
.cta p { font-size: 13.5px; color: var(--ink-soft); line-height: 2.1; margin: 18px auto 32px; max-width: 32em; }
.cta .note { font-size: 11.5px; color: var(--gray); letter-spacing: 0.08em; margin-top: 20px; }

/* ---------- Footer ---------- */
.footer { background: var(--footer); color: var(--footer-text); padding: 64px 32px 40px; text-align: center; }
.footer .logo { color: #fff; }
.footer-tag { font-family: var(--lat); font-style: italic; font-size: 13px; letter-spacing: 0.25em; margin: 16px 0 26px; color: rgba(255,255,255,0.7); }
.footer-links { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; font-size: 12px; letter-spacing: 0.1em; }
.footer-links a { color: var(--footer-text); }
.footer-links a:hover { color: #fff; }
.footer small { display: block; margin-top: 30px; font-size: 11px; letter-spacing: 0.1em; color: rgba(255,255,255,0.45); }

/* ---------- Genre page hero ---------- */
.gp-hero { text-align: center; padding: 84px 32px 64px; background: var(--off-white); border-bottom: 1px solid var(--line); }
.gp-hero .crumb { font-family: var(--lat); font-style: italic; font-size: 13px; letter-spacing: 0.22em; color: var(--gray); }
.gp-hero h1 { font-size: clamp(26px, 4.2vw, 38px); line-height: 1.7; letter-spacing: 0.07em; margin-top: 18px; font-weight: 500; }
.gp-hero .lead { font-size: 14px; color: var(--ink-soft); line-height: 2.2; max-width: 34em; margin: 22px auto 0; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav-links { display: none; }
  .section { padding: 84px 0; }
  .hero { padding: 64px 24px 52px; }
  .ba { grid-template-columns: 1fr; gap: 18px; }
  .ba-arrow { transform: rotate(90deg); font-size: 24px; }
  .step { grid-template-columns: 48px 1fr; gap: 14px; }
  .reflect p { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}