/* ============================================================
   実績詳細ページ 共通スタイル — LP（index.html）のデザイン準拠
   palette: orange #F79320 / orange-dark #E07D0A / black #1A1A1A
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --orange: #F79320;
  --orange-dark: #E07D0A;
  --black: #1A1A1A;
  --white: #FFFFFF;
  --gray-bg: #F6F6F6;
  --gray-light: #E4E4E4;
  --text-secondary: #666666;
  --radius: 12px;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
}
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans JP', sans-serif; color: var(--black); background: var(--white); line-height: 1.8; }
img { max-width: 100%; }

header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white); border-bottom: 1px solid var(--gray-light);
  padding: 0 24px; height: 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.site-name { font-size: 14px; font-weight: 900; color: var(--black); text-decoration: none; }
.site-name span { color: var(--orange); }
.header-cta {
  background: var(--orange); color: var(--white); font-size: 13px; font-weight: 700;
  padding: 9px 20px; border-radius: 100px; text-decoration: none; white-space: nowrap;
}
.header-cta:hover { background: var(--orange-dark); }

.wrap { max-width: 760px; margin: 0 auto; padding: 40px 24px 0; }
.breadcrumb { font-size: 12px; color: var(--text-secondary); margin-bottom: 28px; }
.breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.breadcrumb a:hover { color: var(--orange); }

.category-badge {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  color: var(--orange-dark); background: #FFF3E0; border-radius: 100px; padding: 4px 14px; margin-bottom: 16px;
}
h1 { font-size: clamp(22px, 4vw, 32px); font-weight: 900; line-height: 1.4; margin-bottom: 16px; }
.lead { font-size: 15px; color: var(--text-secondary); margin-bottom: 8px; }
.client { font-size: 12px; color: var(--text-secondary); margin-bottom: 28px; }

.shot { border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 32px; display: block; }

.metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  background: var(--gray-bg); border-radius: var(--radius); padding: 22px 16px; margin-bottom: 40px;
}
.metric { text-align: center; }
.metric-num { display: block; font-size: clamp(16px, 2.6vw, 22px); font-weight: 900; color: var(--orange-dark); }
.metric-label { display: block; font-size: 11px; color: var(--text-secondary); margin-top: 4px; }

.case-section { margin-bottom: 36px; }
.case-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 900; letter-spacing: 0.06em;
  padding: 5px 16px; border-radius: 100px; margin-bottom: 14px; color: var(--white);
}
.case-label.challenge { background: #C62828; }
.case-label.action { background: var(--orange-dark); }
.case-label.result { background: #2E7D32; }
.case-section p { font-size: 15px; }

.spread {
  background: #FFF8EF; border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px; margin: 40px 0 48px;
}
.spread h2 { font-size: 14px; font-weight: 900; color: var(--orange-dark); margin-bottom: 8px; }
.spread p { font-size: 14px; }

.cta { background: var(--gray-bg); text-align: center; padding: 56px 24px; margin-top: 24px; }
.cta h2 { font-size: clamp(18px, 3vw, 26px); font-weight: 900; margin-bottom: 10px; }
.cta > p { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--orange); color: var(--white); font-size: 15px; font-weight: 700;
  padding: 14px 36px; border-radius: 100px; text-decoration: none; transition: all 0.2s;
}
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 2px solid var(--orange); color: var(--orange); font-size: 15px; font-weight: 700;
  padding: 12px 34px; border-radius: 100px; text-decoration: none; transition: all 0.2s; background: transparent;
}
.btn-outline:hover { background: var(--orange); color: var(--white); transform: translateY(-2px); }

.back { text-align: center; padding: 32px 0 8px; }
.back a { font-size: 13px; font-weight: 700; color: var(--orange-dark); text-decoration: none; }
footer { text-align: center; font-size: 11px; color: var(--text-secondary); padding: 24px 0 32px; }

@media (max-width: 560px) {
  .metrics { grid-template-columns: 1fr; gap: 16px; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
}