/* 実践AI合同会社 official site
   Look & feel: SmartHR Design System準拠（https://smarthr.design/ 2026-07-25取得）
   - 色: SmartHR Blue #00c4cc / Black #23221f / Orange #ff9900 / Stone01-04 / Aqua・Sky系
   - 書体: 游ゴシック体（推奨ウェイトM・B）。明朝は使わない（ロゴ画像のみ既承認ワードマーク）
   Layout grammar: dense LP style per owner-approved reference (2026-07-25). */

:root {
  --blue: #00c4cc;        /* SmartHR Blue */
  --blue-dark: #12abb1;   /* Aqua03: hover/darker */
  --blue-deep: #0f7f85;   /* Aqua04 */
  --aqua-tint: #d4f4f5;   /* Aqua01 */
  --sky-tint: #ddf2fb;    /* Sky01 */
  --link: #0071c1;        /* text link */
  --orange: #ff9900;      /* Orange accent */
  --black: #23221f;       /* Black (text) */
  --gray-strong: #4e4c49; /* Stone04 */
  --gray: #aaa69f;        /* Stone03 */
  --stone2: #edebe6;      /* Stone02: borders */
  --stone1: #f8f7f6;      /* Stone01: tint bg */
  --sans: "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体",
          "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 500;
  color: var(--black);
  background: #fff;
  line-height: 1.8;
  letter-spacing: 0.02em;
  font-feature-settings: "palt";
}

a { color: var(--link); text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-weight: 700; }

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

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--stone2);
}
.site-header .container {
  display: flex; align-items: center; gap: 20px;
  padding-top: 12px; padding-bottom: 12px;
}
.site-logo img { height: 32px; }
.site-nav { display: flex; gap: 20px; flex-wrap: wrap; margin-left: auto; }
.site-nav a { font-size: 0.9rem; font-weight: 700; color: var(--black); }
.site-nav a:hover { color: var(--blue-deep); }
.header-cta {
  background: var(--blue);
  color: #fff; font-weight: 700; font-size: 0.9rem;
  padding: 11px 20px; border-radius: 8px;
  white-space: nowrap;
}
.header-cta:hover { background: var(--blue-dark); }

/* ---------- Hero ---------- */
.hero { background: var(--aqua-tint); overflow: hidden; }
.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
  padding-top: 64px; padding-bottom: 60px;
}
.hero .catch-lead {
  display: inline-block;
  background: #fff;
  border: 1.5px solid var(--blue-deep);
  color: var(--blue-deep);
  font-size: 0.95rem; font-weight: 700;
  padding: 6px 16px; border-radius: 999px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 2.7rem;
  line-height: 1.45;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  color: var(--black);
}
.hero h1 .em { color: var(--blue-deep); }
.hero .lede {
  font-size: 0.98rem; color: var(--gray-strong);
  margin-bottom: 8px; max-width: 34em;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.hero-img img { width: 100%; border-radius: 12px; box-shadow: 0 4px 20px rgba(35, 34, 31, 0.10); }

.btn {
  display: inline-block;
  font-weight: 700; font-size: 1.05rem; line-height: 1;
  padding: 18px 32px; border-radius: 8px;
  text-align: center;
}
.btn-primary {
  background: var(--blue); color: #fff;
  border: 2px solid var(--blue);
  box-shadow: 0 2px 8px rgba(18, 171, 177, 0.3);
}
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn-outline {
  background: #fff; color: var(--blue-deep); border: 2px solid var(--blue-deep);
}
.btn-outline:hover { background: var(--sky-tint); }
.btn-ghost {
  background: transparent; color: #fff; border: 2px solid #fff;
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); }

/* ---------- Fact strip ---------- */
.fact-strip { background: #fff; border-bottom: 1px solid var(--stone2); }
.fact-strip .container {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding-top: 24px; padding-bottom: 24px; gap: 8px;
}
.fact { text-align: center; padding: 4px 10px; }
.fact + .fact { border-left: 1px solid var(--stone2); }
.fact .label { font-size: 0.78rem; color: var(--gray-strong); letter-spacing: 0.06em; }
.fact .value { font-size: 1.5rem; font-weight: 700; line-height: 1.4; color: var(--blue-deep); }
.fact .value small { font-size: 0.8rem; font-weight: 500; color: var(--gray-strong); }

/* ---------- Sections ---------- */
.section { padding: 76px 0; }
.section.tinted { background: var(--stone1); }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.85rem; font-weight: 700; letter-spacing: 0.22em;
  color: var(--blue-deep); margin-bottom: 12px;
}
.sec-head .kicker::before { content: "●"; font-size: 0.5rem; color: var(--blue); }
.sec-head h2 {
  font-size: 1.9rem; line-height: 1.6; color: var(--black);
  letter-spacing: 0.02em;
}
.sec-head .sub { color: var(--gray-strong); margin-top: 10px; font-size: 0.95rem; }

/* ABOUT: text + steps */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: start; }
.about-copy p { margin-bottom: 1.1em; font-size: 0.97rem; }
.about-copy .strong-line { font-weight: 700; color: var(--black); font-size: 1.05rem; }
.step-flow { background: #fff; border: 1px solid var(--stone2); border-radius: 12px; padding: 8px 20px; }
.step {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 16px 2px;
}
.step + .step { border-top: 1px solid var(--stone2); }
.step .no {
  flex: none; width: 40px; height: 40px; border-radius: 50%;
  background: var(--blue); color: #fff;
  font-weight: 700; font-size: 1.05rem;
  display: flex; align-items: center; justify-content: center;
}
.step.free .no { background: var(--orange); }
.step .t { font-weight: 700; color: var(--black); }
.step .t .price { font-size: 0.85rem; color: var(--blue-deep); margin-left: 8px; }
.step .d { font-size: 0.92rem; color: var(--gray-strong); }

/* FEATURES cards */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: #fff; border: 1px solid var(--stone2); border-radius: 12px;
  overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 2px 10px rgba(35, 34, 31, 0.05);
}
.feature-card .head {
  display: flex; gap: 12px; align-items: center;
  padding: 20px 20px 0;
}
.feature-card .no {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  background: var(--blue); color: #fff;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.feature-card h3 {
  font-size: 1.05rem; color: var(--black); line-height: 1.5;
}
.feature-card img { padding: 14px 20px 0; border-radius: 20px; }
.feature-card p { padding: 12px 20px 22px; font-size: 0.92rem; color: var(--gray-strong); }

/* PRICE cards */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-items: stretch; }
.price-card {
  background: #fff; border: 1.5px solid var(--stone2); border-radius: 12px;
  padding: 28px 26px 24px;
  display: flex; flex-direction: column;
}
.price-card.recommended { border: 2px solid var(--blue); position: relative; box-shadow: 0 4px 16px rgba(18, 171, 177, 0.15); }
.price-card.recommended .badge {
  position: absolute; top: -14px; left: 22px;
  background: var(--orange); color: #fff;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
  padding: 4px 14px; border-radius: 999px;
}
.price-card .name { font-weight: 700; color: var(--black); font-size: 1.1rem; }
.price-card .for { font-size: 0.85rem; color: var(--gray-strong); margin-bottom: 12px; }
.price-card .price {
  font-weight: 700; font-size: 1.9rem; color: var(--blue-deep);
  border-bottom: 1px solid var(--stone2); padding-bottom: 12px; margin-bottom: 14px;
}
.price-card .price small { font-size: 0.85rem; font-weight: 500; color: var(--gray-strong); }
.price-card ul { list-style: none; font-size: 0.9rem; }
.price-card li { padding: 5px 0 5px 1.5em; position: relative; }
.price-card li::before {
  content: "✓"; position: absolute; left: 0; color: var(--blue-dark); font-weight: 700;
}
.price-card li.minus { color: var(--gray); }
.price-card li.minus::before { content: "－"; color: var(--gray); }
.price-note { text-align: center; color: var(--gray-strong); font-size: 0.85rem; margin-top: 22px; }

/* FAQ */
.faq-list { max-width: 46em; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--stone2); border-radius: 10px; padding: 18px 22px; }
.faq-item + .faq-item { margin-top: 14px; }
.faq-item .q {
  font-weight: 700; color: var(--black);
  display: flex; gap: 12px; margin-bottom: 6px;
}
.faq-item .q::before { content: "Q"; color: var(--blue-deep); font-weight: 700; }
.faq-item .a { display: flex; gap: 12px; font-size: 0.94rem; color: var(--gray-strong); }
.faq-item .a::before { content: "A"; color: var(--orange); font-weight: 700; }
.faq-more { text-align: center; margin-top: 28px; }

/* CTA band */
.cta-band { background: var(--blue-deep); color: #fff; text-align: center; padding: 64px 0; }
.cta-band h2 { font-size: 1.8rem; margin-bottom: 12px; }
.cta-band p { color: #d4f4f5; margin-bottom: 4px; }
.cta-band .cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
.cta-band .btn-primary { background: #fff; color: var(--blue-deep); border-color: #fff; box-shadow: none; }
.cta-band .btn-primary:hover { background: var(--aqua-tint); border-color: var(--aqua-tint); }

/* Footer */
.site-footer { background: var(--black); color: #fff; padding: 44px 0 32px; }
.site-footer .cols {
  display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.site-footer .footer-logo img { height: 28px; margin-bottom: 12px; }
.site-footer .corp { font-size: 0.85rem; color: #ccc9c4; line-height: 1.9; }
.site-footer .footer-links { display: grid; grid-template-columns: auto auto; gap: 6px 28px; }
.site-footer .footer-links a { color: #ccc9c4; font-size: 0.88rem; }
.site-footer .footer-links a:hover { color: #fff; }
.site-footer .copyright {
  margin-top: 30px; padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: 0.78rem; color: #aaa69f;
}

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; padding-top: 44px; }
  .hero h1 { font-size: 1.9rem; }
  .fact-strip .container { grid-template-columns: repeat(2, 1fr); }
  .fact + .fact { border-left: none; }
  .about-grid, .feature-grid, .price-grid { grid-template-columns: 1fr; }
  .site-nav { display: none; }
}

/* ---------- Subpages ---------- */
.site-nav a.current { color: var(--blue-deep); }
.page-hero { background: var(--aqua-tint); padding: 72px 0 64px; }
.page-hero .container { max-width: 900px; }
.page-hero h1 { font-size: 2.5rem; line-height: 1.45; margin: 10px 0 18px; }
.page-hero p { max-width: 48em; color: var(--gray-strong); margin-top: 10px; }
.page-hero-compact { padding: 56px 0 48px; }
.prose { max-width: 820px; }
.prose h2 { font-size: 1.55rem; line-height: 1.5; margin: 52px 0 16px; padding-bottom: 10px; border-bottom: 2px solid var(--aqua-tint); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.12rem; margin: 24px 0 10px; }
.prose p { margin: 0 0 18px; color: var(--gray-strong); }
.prose ul { margin: 0 0 18px 1.4em; color: var(--gray-strong); }
.contact-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.prose .faq-list { max-width: none; }
@media (max-width: 860px) {
  .page-hero { padding: 48px 0; }
  .page-hero h1 { font-size: 1.9rem; }
  .prose h2 { font-size: 1.35rem; margin-top: 38px; }
  .contact-actions .btn { width: 100%; }
}