/* ============================================================
   Globox Inc. コーポレートサイト — パーチメントテーマ
   ガウディ名刺 / 古羊皮紙 / 手書き墨インク
   ============================================================ */

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

:root {
  /* ── 標準カラーパレット（日本IT企業52社調査準拠） ── */
  --bg:          #ffffff;
  --bg-surface:  #f8f9fa;
  --bg-elevated: #eef2f7;
  --ink:         #333333;
  --ink-2:       rgba(51, 51, 51, 0.70);
  --ink-muted:   rgba(51, 51, 51, 0.45);
  --sepia:       #0066cc;
  --sepia-light: #1a7de0;
  --sepia-dim:   rgba(0, 102, 204, 0.08);
  --border:      rgba(0, 0, 0, 0.08);
  --border-dark: rgba(0, 0, 0, 0.15);
  --divider:     rgba(0, 0, 0, 0.05);

  --font-display: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-serif:   'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', Meiryo, sans-serif;
  --radius:      4px;
  --transition:  0.25s ease;
  --container:   1100px;
  --shadow:      0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg:   0 4px 24px rgba(0, 0, 0, 0.12);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-serif);
  color: var(--ink);
  background-color: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── ユーティリティ ─────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--ink);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-sub {
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin-bottom: 56px;
  font-style: italic;
  letter-spacing: 0.03em;
}

.accent { color: var(--sepia); }

/* ── ボタン ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 32px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  font-family: var(--font-serif);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  letter-spacing: 0.10em;
  white-space: nowrap;
}

.btn-accent {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-accent:hover {
  background: var(--sepia);
  border-color: var(--sepia);
  transform: translateY(-2px);
  box-shadow: 0 5px 18px rgba(26, 15, 8, 0.20);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-dark);
}
.btn-outline:hover {
  border-color: var(--ink);
  background: var(--sepia-dim);
  transform: translateY(-2px);
}

.btn-sm { padding: 7px 18px; font-size: 0.84rem; }
.btn-lg { padding: 14px 44px; font-size: 0.96rem; }
.btn-full { width: 100%; }

.btn-nav {
  background: transparent;
  color: var(--sepia);
  padding: 5px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
}
.btn-nav:hover {
  background: var(--sepia-dim);
  border-color: var(--sepia);
}

/* ── アニメーション ─────────────────────── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.9s ease, transform 0.9s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.delay { transition-delay: 0.2s; }

/* ── ヘッダー ───────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  padding: 13px 0;
  border-bottom-color: var(--border);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.07);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  margin-right: auto;
  text-decoration: none;
}
.logo-en {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.logo-ja {
  font-size: 0.6rem;
  color: var(--ink-muted);
  letter-spacing: 0.14em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  color: var(--ink-2);
  font-size: 0.86rem;
  font-weight: 400;
  letter-spacing: 0.07em;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--sepia); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 1px;
  background: var(--ink);
  transition: var(--transition);
}

/* ── ヒーロー ───────────────────────────── */
.hero {
  background: linear-gradient(160deg, #eef5ff 0%, #ffffff 65%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 75% 45%, rgba(0, 102, 204, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 35% 45% at 10% 80%, rgba(0, 80, 180, 0.03) 0%, transparent 55%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.80rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  color: var(--sepia);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--sepia);
  opacity: 0.55;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-desc {
  color: var(--ink-2);
  font-size: 0.94rem;
  line-height: 1.95;
  margin-bottom: 40px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* コードブロック ─── 印刷ドキュメント風 */
.code-block {
  background: var(--bg-elevated);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-dark);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.code-filename {
  margin-left: auto;
  font-size: 0.70rem;
  color: var(--ink-muted);
  font-family: 'Consolas', monospace;
  letter-spacing: 0.05em;
}

.code-body {
  padding: 24px;
  font-size: 0.82rem;
  font-family: 'Consolas', 'Monaco', monospace;
  line-height: 1.85;
  overflow-x: auto;
  color: var(--ink-2);
}
.kw { color: #0066cc; }
.vr { color: var(--ink); }
.ky { color: #6f42c1; }
.st { color: #198754; }
.fn { color: var(--sepia); }

.hero-wave {
  position: absolute;
  bottom: 0; left: 0; right: 0;
}
.hero-wave svg { display: block; width: 100%; height: 60px; }

/* ── 特長 ───────────────────────────────── */
.features {
  background: var(--bg-surface);
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.features .section-title { margin-bottom: 56px; }

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

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow);
}

.feature-icon { font-size: 2.2rem; margin-bottom: 20px; opacity: 0.80; }
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}
.feature-card p { font-size: 0.87rem; color: var(--ink-2); line-height: 1.9; }

/* ── サービス ───────────────────────────── */
.services {
  padding: 100px 0;
  background: var(--bg);
  border-top: 1px solid var(--divider);
}
.services .section-title { margin-bottom: 16px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow);
}
.service-card.featured { border-color: var(--sepia); }

.service-badge {
  position: absolute;
  top: -12px; right: 20px;
  background: var(--sepia);
  color: var(--bg);
  font-size: 0.70rem;
  font-weight: 600;
  padding: 3px 14px;
  border-radius: 1px;
  letter-spacing: 0.08em;
}

.service-icon { font-size: 1.8rem; margin-bottom: 14px; opacity: 0.75; }
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}
.service-card p { font-size: 0.87rem; color: var(--ink-2); margin-bottom: 18px; line-height: 1.9; }

.service-list { margin-bottom: 20px; }
.service-list li {
  font-size: 0.84rem;
  color: var(--ink-2);
  padding: 6px 0;
  border-bottom: 1px solid var(--divider);
}
.service-list li::before { content: "— "; color: var(--sepia); }

/* ── AI Weekly ──────────────────────────── */
.ai-weekly-section {
  background: var(--bg-surface);
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.ai-weekly-card {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 44px;
  text-decoration: none;
  color: var(--ink);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.ai-weekly-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow);
}
.ai-weekly-icon { font-size: 2.8rem; flex-shrink: 0; opacity: 0.70; }
.ai-weekly-body { flex: 1; }
.ai-weekly-label {
  font-family: var(--font-display);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--sepia);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.ai-weekly-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  font-style: italic;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.ai-weekly-desc {
  font-size: 0.87rem;
  color: var(--ink-2);
  line-height: 1.9;
}
.ai-weekly-arrow {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--sepia);
  letter-spacing: 0.06em;
  white-space: nowrap;
  opacity: 0.85;
}

/* ── ご利用の流れ ───────────────────────── */
.flow {
  padding: 100px 0;
  background: var(--bg);
  border-top: 1px solid var(--divider);
}

.flow-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.flow-step {
  flex: 1;
  text-align: center;
  padding: 36px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.flow-step:hover {
  transform: translateY(-4px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow);
}

.flow-num {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.20em;
  color: var(--sepia);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.flow-icon { font-size: 1.8rem; margin-bottom: 14px; opacity: 0.65; }

.flow-step h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.flow-step p {
  font-size: 0.82rem;
  color: var(--ink-2);
  line-height: 1.85;
}

.flow-arrow {
  flex-shrink: 0;
  width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 60px;
  color: var(--sepia);
  font-size: 1.2rem;
  opacity: 0.40;
}
.flow-arrow::after { content: '›'; }

@media (max-width: 900px) {
  .flow-steps { flex-direction: column; gap: 12px; }
  .flow-arrow  { display: none; }
}

/* ── 会社概要 ───────────────────────────── */
.about {
  background: var(--bg-surface);
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about .section-title { text-align: left; }

.about-lead {
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.95;
  margin-top: 14px;
  border-left: 1px solid var(--sepia);
  padding-left: 16px;
  font-style: italic;
}

.about-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0 32px;
  font-size: 0.87rem;
}
.about-table th, .about-table td {
  padding: 11px 0;
  border-bottom: 1px solid var(--divider);
  vertical-align: top;
  line-height: 1.6;
}
.about-table th {
  width: 90px;
  color: var(--ink-muted);
  font-weight: 400;
  white-space: nowrap;
  font-style: italic;
}
.about-table td { color: var(--ink-2); }
.about-table td a { color: var(--sepia); }
.about-table td a:hover { text-decoration: underline; }

.mission-box {
  background: var(--bg-elevated);
  border-radius: var(--radius);
  padding: 30px 34px;
  border-left: 2px solid var(--sepia);
}
.mission-quote {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.95;
  font-style: italic;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}
.mission-attr {
  color: var(--sepia);
  font-size: 0.78rem;
  letter-spacing: 0.07em;
}

/* 会社概要ビジュアル ─── 名刺風カード */
.kyoto-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 56px 40px;
  text-align: center;
  position: relative;
}
.kyoto-card::before {
  /* 外枠装飾線 */
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(26, 15, 8, 0.10);
  pointer-events: none;
}
.kyoto-icon { font-size: 2.8rem; margin-bottom: 20px; opacity: 0.55; }
.kyoto-text {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  font-style: italic;
  line-height: 1.75;
  margin-bottom: 28px;
  letter-spacing: 0.01em;
}
.kyoto-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag {
  background: transparent;
  color: var(--sepia);
  border: 1px solid var(--border);
  padding: 4px 14px;
  border-radius: 1px;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

/* ── お問い合わせ ───────────────────────── */
.contact {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 100px 0;
}
.contact .section-title { color: var(--ink); }

.contact-form {
  max-width: 720px;
  margin: 0 auto;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-group label {
  font-size: 0.84rem;
  font-weight: 400;
  color: var(--ink-2);
  letter-spacing: 0.06em;
  font-style: italic;
}
.required { color: var(--sepia); }

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--ink);
  font-size: 0.90rem;
  font-family: var(--font-serif);
  transition: border-color var(--transition);
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-muted); }
.form-group select option { background: var(--bg-elevated); color: var(--ink); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--sepia);
  background: var(--bg-elevated);
}

.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 14px;
  font-style: italic;
}

/* ── フッター ───────────────────────────── */
.footer {
  background: #1a2b4a;
  border-top: none;
  padding: 44px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer .logo-en {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.01em;
}
.footer .logo-ja { font-size: 0.62rem; color: rgba(255,255,255,0.45); letter-spacing: 0.12em; }

.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; }
.footer-nav a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.60);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.footer-nav a:hover { color: #ffffff; }

.footer-copy { font-size: 0.70rem; color: rgba(255,255,255,0.35); letter-spacing: 0.05em; }

/* ── レスポンシブ ───────────────────────── */
@media (max-width: 900px) {
  .hero-inner     { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual    { max-width: 480px; margin: 0 auto; }
  .features-grid  { grid-template-columns: 1fr; }
  .services-grid  { grid-template-columns: 1fr; }
  .about-inner    { grid-template-columns: 1fr; }
  .form-row       { grid-template-columns: 1fr; }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-dark);
    padding: 16px 24px;
    gap: 16px;
    backdrop-filter: blur(8px);
  }
  .nav-links.open { display: flex; }
  .nav-toggle     { display: flex; }
  .header         { position: fixed; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; text-align: center; }
  .about-table th { width: 70px; font-size: 0.8rem; }
  .ai-weekly-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 24px;
  }
}