/* ============================================================
   for-secretariat.cci.sly.gr.jp — スタイルシート
   ロイヤルブルー × ゴールド（cci）+ sl.sly.gr.jp レイアウト構造
   明朝体（Noto Serif JP）ベース
   ============================================================ */

/* --- Google Fonts / LINE Seed JP --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;600;700&family=Noto+Sans+JP:wght@400;500;700&display=swap');

/* --- CSS変数 --- */
:root {
  --royal-blue:   #1a3a6b;
  --royal-mid:    #2557a7;
  --royal-light:  #3b82c4;
  --gold:         #b8952a;
  --gold-light:   #d4ac3a;
  --gold-pale:    #f5edd6;
  --ink:          #1c1c1c;
  --muted:        #5a5a5a;
  --surface:      #f8f7f4;
  --white:        #ffffff;
  --border:       #ddd8ce;
  --radius:       6px;
  --shadow:       0 4px 20px rgba(26,58,107,.10);
  --font-serif:   'Noto Serif JP', 'ヒラギノ明朝 ProN', serif;
  --font-sans:    'LINESeedJP', 'Noto Sans JP', 'ヒラギノ角ゴ ProN', sans-serif;
  --max-w:        1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--white);
}

/* ---- 共通 ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

section { padding: 80px 0; }

.section-label {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid var(--gold-light);
  padding-bottom: 4px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--royal-blue);
  line-height: 1.45;
  margin-bottom: 12px;
}

.section-sub {
  font-size: .95rem;
  color: var(--muted);
  max-width: 600px;
}

/* ---- ヘッダー（sl.sly.gr.jp準拠） ---- */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 65px;
  background: rgba(10,20,50,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(184,149,42,.2);
  transition: background .3s, box-shadow .3s;
}
#header.scrolled {
  background: rgba(10,20,50,.97);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}

.header-logo {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  letter-spacing: .06em;
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.header-logo span {
  font-size: .65rem;
  color: var(--gold-light);
  font-weight: 400;
  letter-spacing: .14em;
  font-family: var(--font-sans);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header-nav {
  display: flex;
  gap: 24px;
}
.header-nav a {
  font-size: .82rem;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  letter-spacing: .04em;
  transition: color .2s;
}
.header-nav a:hover { color: var(--gold-light); }

.header-cta {
  display: inline-flex;
  align-items: center;
  background: var(--gold);
  color: var(--white);
  font-size: .8rem;
  font-family: var(--font-serif);
  padding: 8px 18px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: .06em;
  transition: background .25s;
  white-space: nowrap;
}
.header-cta:hover { background: var(--gold-light); }

/* ハンバーガー */
.ham-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.ham-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.ham-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ham-btn.open span:nth-child(2) { opacity: 0; }
.ham-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* モバイルメニュー */
.mobile-nav {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0;
  background: rgba(10,20,50,.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(184,149,42,.2);
  z-index: 999;
  padding: 20px 24px;
  flex-direction: column;
  gap: 0;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  color: rgba(255,255,255,.8);
  text-decoration: none;
  font-size: .95rem;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  letter-spacing: .04em;
}
.mobile-nav a:last-child { border-bottom: none; }

/* ---- 汎用ボタン ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: .9rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: .06em;
  transition: background .25s, transform .2s;
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }

/* ---- ヒーロー（sl.sly.gr.jp準拠） ---- */
#hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 65px;
  height: calc(100svh - 65px);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  transform: scale(1.06);
  transition: transform 8s ease-out;
  filter: brightness(.45) saturate(.8);
}
.hero-bg.loaded { transform: scale(1); }

#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,20,50,.3) 0%,
    rgba(10,20,50,.15) 50%,
    rgba(10,20,50,.55) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 820px;
}

.hero-label {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-light);
  border: 1px solid rgba(184,149,42,.45);
  padding: 6px 18px;
  border-radius: 2px;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.5;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,.4);
}

.hero-title em {
  font-style: normal;
  color: var(--gold-light);
}

.hero-subtitle {
  font-size: clamp(.875rem, 1.8vw, 1.05rem);
  color: rgba(255,255,255,.82);
  line-height: 1.85;
  margin-bottom: 36px;
  text-shadow: 0 1px 8px rgba(0,0,0,.4);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: .95rem;
  padding: 14px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: .06em;
  transition: background .25s, transform .2s;
}
.btn-hero-primary:hover { background: var(--gold-light); transform: translateY(-2px); }

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.5);
  color: var(--white);
  font-size: .95rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  backdrop-filter: blur(4px);
  transition: background .25s;
}
.btn-hero-secondary:hover { background: rgba(255,255,255,.1); }

.arr { font-style: normal; }

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.5);
  font-size: .65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---- 課題提起 ---- */
#issues {
  background: var(--surface);
  border-top: 3px solid var(--gold);
}

.issues-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.issue-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--royal-mid);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.issue-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.issue-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--royal-blue);
  margin-bottom: 8px;
}

.issue-card p {
  font-size: .875rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ---- ソリューション（Study in Shizuoka風グリッド） ---- */
#solutions {
  background: var(--white);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: 56px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.solution-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.solution-item:nth-child(even) { border-right: none; }
.solution-item:nth-last-child(-n+2) { border-bottom: none; }

.sol-num {
  background: var(--royal-blue);
  color: var(--gold-light);
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  letter-spacing: .04em;
}

.sol-body {
  padding: 24px 24px 24px 20px;
}

.sol-body h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--royal-blue);
  margin-bottom: 6px;
}

.sol-body p {
  font-size: .85rem;
  color: var(--muted);
  line-height: 1.7;
}

.sol-tag {
  display: inline-block;
  font-size: .68rem;
  background: var(--gold-pale);
  color: var(--gold);
  border-radius: 2px;
  padding: 2px 8px;
  margin-bottom: 6px;
  letter-spacing: .08em;
}

/* ---- 事例（天理モデル） ---- */
#case {
  background: var(--royal-blue);
  color: var(--white);
}

#case .section-title { color: var(--white); }

.case-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 48px;
}

.case-img {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,.3);
}

.case-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.case-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 28px 0;
}

.stat-box {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(184,149,42,.3);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.stat-box .num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1.1;
}

.stat-box .label {
  font-size: .75rem;
  color: rgba(255,255,255,.65);
  margin-top: 4px;
}

.case-text p {
  font-size: .9rem;
  color: rgba(255,255,255,.82);
  line-height: 1.9;
  margin-bottom: 16px;
}

.case-tag {
  display: inline-block;
  background: rgba(184,149,42,.2);
  border: 1px solid rgba(184,149,42,.4);
  color: var(--gold-light);
  font-size: .72rem;
  padding: 4px 12px;
  border-radius: 2px;
  letter-spacing: .1em;
  margin-bottom: 16px;
}

/* ---- 重点支援エリア ---- */
#areas {
  background: var(--surface);
}

.areas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.area-card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.area-card-header {
  background: var(--royal-blue);
  padding: 22px 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.area-card-header .flag {
  font-size: 2rem;
}

.area-card-header h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--white);
  font-weight: 700;
  line-height: 1.4;
}

.area-card-header h3 span {
  display: block;
  font-size: .72rem;
  color: var(--gold-light);
  font-weight: 400;
  letter-spacing: .1em;
}

.area-card-body {
  padding: 24px 28px;
}

.area-card-body p {
  font-size: .875rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.area-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.area-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .85rem;
  color: var(--ink);
}

.area-features li::before {
  content: '✦';
  color: var(--gold);
  font-size: .7rem;
  margin-top: 4px;
  flex-shrink: 0;
}

.area-map {
  margin: 20px 28px 28px;
  border-radius: var(--radius);
  overflow: hidden;
  height: 200px;
}

.area-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ---- 信頼 ---- */
#trust {
  background: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.trust-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: box-shadow .25s;
}
.trust-card:hover { box-shadow: var(--shadow); }

.trust-card .icon {
  width: 56px; height: 56px;
  background: var(--gold-pale);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 16px;
}

.trust-card h3 {
  font-family: var(--font-serif);
  font-size: .95rem;
  color: var(--royal-blue);
  font-weight: 700;
  margin-bottom: 8px;
}

.trust-card p {
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ---- お問い合わせ ---- */
#contact {
  background: var(--royal-blue);
  color: var(--white);
}

#contact .section-title { color: var(--white); }
#contact .section-sub { color: rgba(255,255,255,.7); max-width: 100%; }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  margin-top: 48px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 16px;
}

.contact-info p {
  font-size: .875rem;
  color: rgba(255,255,255,.78);
  line-height: 1.85;
  margin-bottom: 8px;
}

.contact-form {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: .8rem;
  color: rgba(255,255,255,.75);
  margin-bottom: 6px;
  letter-spacing: .06em;
}

.form-group label .required {
  color: var(--gold-light);
  margin-left: 4px;
  font-size: .7rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--white);
  font-size: .9rem;
  font-family: var(--font-sans);
  transition: border-color .2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.35); }

.form-group select option { background: var(--royal-blue); color: var(--white); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold-light);
  background: rgba(255,255,255,.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit {
  width: 100%;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 14px;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .25s, transform .2s;
  margin-top: 8px;
}
.form-submit:hover { background: var(--gold-light); transform: translateY(-2px); }
.form-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.form-notice {
  font-size: .78rem;
  color: rgba(255,255,255,.5);
  text-align: center;
  margin-top: 12px;
  line-height: 1.6;
}

#form-message {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .875rem;
  display: none;
}
#form-message.success { background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.3); color: #86efac; display: block; }
#form-message.error   { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.3);  color: #fca5a5; display: block; }

/* ---- フッター（sl.sly.gr.jp準拠） ---- */
#footer {
  background: #0d1a2e;
  color: rgba(255,255,255,.55);
  padding: 56px 0 0;
  border-top: 1px solid rgba(184,149,42,.3);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .1em;
  margin-bottom: 8px;
}

.footer-brand-tagline {
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  line-height: 1.7;
  letter-spacing: .04em;
}

.footer-nav-label {
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-links a {
  display: inline-block;
  font-size: .78rem;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 2px;
  padding: 4px 12px;
  transition: color .2s, border-color .2s;
}
.footer-links a:hover {
  color: var(--gold-light);
  border-color: rgba(184,149,42,.4);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: .73rem;
  color: rgba(255,255,255,.3);
}

.footer-policy a {
  font-size: .73rem;
  color: rgba(255,255,255,.3);
  text-decoration: none;
  transition: color .2s;
}
.footer-policy a:hover { color: var(--gold-light); }

/* ---- レスポンシブ ---- */
@media (max-width: 900px) {
  #header { padding: 0 16px; height: 56px; }
  #hero { margin-top: 56px; min-height: calc(100svh - 56px); }
  .header-nav { display: none; }
  .header-cta { display: none; }
  .ham-btn { display: flex; }
  .hero-content { padding: 0 20px; text-align: left; }
  .hero-label { font-size: .65rem; }
  .hero-title { font-size: clamp(1.6rem, 6.5vw, 2.2rem); }
  .hero-subtitle { font-size: .82rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
  .btn-hero-primary, .btn-hero-secondary { width: 100%; max-width: 280px; justify-content: center; font-size: .88rem; padding: 13px 20px; }
  .issues-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .solution-item { border-right: none !important; }
  .solution-item:last-child { border-bottom: none; }
  .case-inner { grid-template-columns: 1fr; }
  .areas-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
  section { padding: 56px 0; }
  .trust-grid { grid-template-columns: 1fr; }
  .case-stats { grid-template-columns: 1fr 1fr; }
  .contact-form { padding: 24px 16px; }
}

@media (max-width: 600px) {
  section { padding: 56px 0; }
  .trust-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 16px; }
}