/* ==========================================================================
   株式会社オサカベ 公式サイト - style.css
   ========================================================================== */

:root {
  --color-green: #2E7D4F;
  --color-green-dark: #1F5C39;
  --color-red: #D9472B;
  --color-clay: #C08552;
  --color-clay-light: #E7C9A5;
  --color-ink: #1C2B33;
  --color-ink-soft: #3C4A52;
  --color-bg: #F5EFE3;
  --color-bg-alt: #FFFFFF;
  --color-bg-tint: #EFE6D4;
  --color-border: #E1D5BE;

  --font-base: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  --container-width: 1120px;
  --radius-m: 12px;
  --radius-l: 20px;
  --shadow-soft: 0 12px 30px rgba(28, 43, 51, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-red);
  color: #fff;
  box-shadow: 0 8px 20px rgba(217, 71, 43, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(217, 71, 43, 0.4); }

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 2px solid var(--color-ink);
}
.btn-secondary:hover { background: var(--color-ink); color: #fff; }

.btn-large { padding: 18px 36px; font-size: 1.1rem; margin-top: 20px; }

.btn-icon { width: 20px; height: 20px; object-fit: contain; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 239, 227, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand { flex-shrink: 0; }
.brand-logo { height: 44px; width: auto; }

.site-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-weight: 500;
  font-size: 0.92rem;
}
.site-nav a { position: relative; padding: 4px 0; }
.site-nav a:hover { color: var(--color-green); }

.btn-header-cta {
  background: var(--color-green);
  color: #fff;
  border-radius: 999px;
  padding: 10px 20px;
  flex-direction: column;
  gap: 0;
  line-height: 1.3;
  text-align: center;
}
.btn-cta-label { font-size: 0.68rem; font-weight: 500; opacity: 0.9; }
.btn-cta-number { font-size: 1.05rem; font-weight: 900; letter-spacing: 0.02em; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--color-ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(28,43,51,0.72), rgba(46,125,79,0.45)),
    url("../assets/img/hero-bg.jpg");
  background-size: cover;
  background-position: center;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}

.hero-eyebrow {
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  margin-bottom: 16px;
  color: var(--color-clay-light);
}

.hero-title {
  font-size: clamp(1.9rem, 4.2vw, 3.1rem);
  font-weight: 900;
  line-height: 1.5;
  margin: 0 0 24px;
}
.hero-title .accent { color: var(--color-clay-light); }

.hero-lead {
  font-size: 1rem;
  line-height: 2;
  margin: 0 0 36px;
  opacity: 0.95;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .btn-secondary { border-color: #fff; color: #fff; }
.hero .btn-secondary:hover { background: #fff; color: var(--color-ink); }

/* ---------- Section common ---------- */
.section { padding: 96px 0; }
.section-eyebrow {
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  color: var(--color-green);
  margin: 0 0 12px;
}
.section-eyebrow.accent { color: var(--color-red); }

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900;
  margin: 0 0 20px;
}

.section-desc {
  max-width: 720px;
  color: var(--color-ink-soft);
  margin: 0 0 44px;
}

.image-disclaimer {
  margin: 12px 4px 0;
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  text-align: right;
}

.section-worry { background: var(--color-bg-alt); }
.section-image { background: var(--color-bg-tint); }
.section-craypaint { background: var(--color-bg); }
.section-works { background: var(--color-bg-alt); }
.section-reasons { background: var(--color-bg-tint); }
.section-greeting { background: var(--color-bg-alt); }
.section-services { background: var(--color-bg-tint); }
.section-company { background: var(--color-bg-alt); }
.section-contact { background: var(--color-ink); color: #fff; }
.section-contact .section-desc { color: #d7dee1; }

.evidence-figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: #fff;
}
.evidence-figure--table { max-width: 760px; }

/* ---------- Feature / Reason / Service grids ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.feature-card {
  background: #fff;
  border-radius: var(--radius-m);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  border-top: 4px solid var(--color-green);
}
.feature-card h3 { margin: 0 0 10px; font-size: 1.05rem; }
.feature-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.92rem; }

.price-block {
  background: #fff;
  border-radius: var(--radius-l);
  padding: 40px;
  box-shadow: var(--shadow-soft);
  text-align: center;
}
.price-block h3 { margin: 0 0 8px; font-size: 1.2rem; }
.price-note { color: var(--color-ink-soft); margin: 0 0 24px; font-size: 0.9rem; }

/* ---------- Before/After works ---------- */
.baf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 8px;
}
.baf-card {
  background: #fff;
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.baf-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.baf-images figure {
  position: relative;
  margin: 0;
}
.baf-images img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.baf-images figcaption {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 2px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 999px;
  background: rgba(28, 43, 51, 0.75);
  color: #fff;
  letter-spacing: 0.06em;
}
.baf-card h3 { margin: 20px 24px 8px; font-size: 1.02rem; }
.baf-card p { margin: 0 24px 24px; color: var(--color-ink-soft); font-size: 0.9rem; }

/* ---------- Greeting ---------- */
.greeting-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}
.greeting-photo-wrap { margin: 0; }
.greeting-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-soft);
}
.greeting-name { font-size: 1.2rem; font-weight: 900; margin: 0 0 4px; }
.greeting-career { color: var(--color-clay); font-weight: 700; margin: 0 0 20px; font-size: 0.92rem; }
.greeting-body p { color: var(--color-ink-soft); margin: 0 0 18px; }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.reason-card {
  background: var(--color-bg);
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.reason-card img { width: 100%; height: 200px; object-fit: cover; }
.reason-card h3, .reason-card p { padding-left: 24px; padding-right: 24px; }
.reason-card h3 { margin: 20px 0 8px; font-size: 1.05rem; }
.reason-card p { margin: 0 0 24px; color: var(--color-ink-soft); font-size: 0.92rem; }
.reason-card--text { display: flex; flex-direction: column; justify-content: center; padding: 8px 0; background: var(--color-green); color: #fff; }
.reason-card--text h3 { color: #fff; }
.reason-card--text p { color: rgba(255,255,255,0.9); }

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius-m);
  padding: 32px 28px;
  box-shadow: var(--shadow-soft);
  position: relative;
}
.service-num {
  display: block;
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--color-clay);
  margin-bottom: 12px;
}
.service-card h3 { margin: 0 0 10px; font-size: 1.1rem; }
.service-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.92rem; }
.service-card--main {
  background: var(--color-green);
  color: #fff;
}
.service-card--main .service-num { color: var(--color-clay-light); }
.service-card--main p { color: rgba(255,255,255,0.92); }
.service-link { display: inline-block; margin-top: 16px; font-weight: 700; color: #fff; border-bottom: 2px solid #fff; }

/* ---------- Company ---------- */
.company-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.company-table { width: 100%; border-collapse: collapse; }
.company-table th, .company-table td {
  text-align: left;
  padding: 14px 12px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
  vertical-align: top;
}
.company-table th { width: 120px; color: var(--color-green-dark); font-weight: 700; }

.history-list { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--color-clay); }
.history-list li { position: relative; padding: 0 0 24px 24px; }
.history-list li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-clay);
}
.history-year { display: block; font-weight: 900; color: var(--color-clay); font-size: 0.85rem; }
.history-event { display: block; font-size: 0.95rem; }

.philosophy {
  margin: 0;
  padding: 32px;
  background: var(--color-bg-tint);
  border-radius: var(--radius-m);
  font-size: 1rem;
  line-height: 2;
  color: var(--color-ink-soft);
  border-left: 4px solid var(--color-green);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info dl div { display: flex; gap: 16px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.15); }
.contact-info dt { width: 90px; flex-shrink: 0; color: var(--color-clay-light); font-weight: 700; font-size: 0.9rem; }
.contact-info dd { margin: 0; }
.contact-info a:hover { color: var(--color-clay-light); }
.contact-info .btn-primary { margin-top: 28px; }

.contact-cta {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-l);
  padding: 32px;
  text-align: center;
}
.contact-mascot { width: 160px; margin: 0 auto 16px; }
.contact-cta p { margin: 0 0 8px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(255,255,255,0.75); padding: 40px 0; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-inner { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; text-align: center; }
.footer-logo { height: 24px; margin: 0 auto 16px; filter: brightness(0) invert(1); opacity: 0.85; }
.footer-inner p { margin: 4px 0; font-size: 0.82rem; }
.copyright { margin-top: 12px; opacity: 0.6; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .site-nav {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform 0.25s ease;
  }
  .site-nav.is-open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .btn-header-cta { display: none; }

  .feature-grid, .service-grid { grid-template-columns: 1fr; }
  .reason-grid { grid-template-columns: 1fr; }
  .company-layout { grid-template-columns: 1fr; }
  .baf-grid { grid-template-columns: 1fr; }
  .greeting-layout { grid-template-columns: 1fr; }
  .greeting-photo { max-width: 240px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero-inner { padding: 64px 20px; }
}