/* ================================================================
   Accele Biz — トップページ CSS (SPEC-010)
   ロゴカラー #1887c5 (スカイブルー) をアクセントとして採用
   ================================================================ */

/* ===== Design Tokens ===== */
:root {
  --color-primary:   #1a3a5c;
  --color-accent:    #1887c5;
  --color-accent-dk: #1470a8;
  --color-accent-lt: #e8f4fb;
  --color-light-bg:  #f5f7fa;
  --color-text:      #1e293b;
  --color-text-mute: #64748b;
  --color-white:     #ffffff;
  --color-border:    rgba(26, 58, 92, 0.1);
  --font-base: 'Noto Sans JP', 'Inter', sans-serif;
  --transition: 0.25s ease;
  --radius: 8px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
}

/* ================================================================
   4.1 Navbar — 白背景・クリーン
   ================================================================ */
.navbar-custom {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
}
.navbar-custom.scrolled {
  box-shadow: 0 2px 16px rgba(26, 58, 92, 0.10);
}
.navbar-logo {
  height: 42px;
  width: auto;
}
.navbar-custom .nav-link {
  color: var(--color-primary) !important;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  transition: color var(--transition);
}
.navbar-custom .nav-link:hover { color: var(--color-accent) !important; }
.navbar-custom .btn-cta-nav {
  background: var(--color-accent);
  color: var(--color-white) !important;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}
.navbar-custom .btn-cta-nav:hover {
  background: var(--color-accent-dk);
  transform: translateY(-1px);
}
.navbar-toggler { border-color: var(--color-border); }

/* ================================================================
   4.2 Hero — 全画面: ITを連想させる背景 + ロゴ + 屋号 + キャッチ
   ================================================================ */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(140deg, #07192e 0%, #0f2744 40%, #1470a8 100%);
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(24, 135, 197, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 135, 197, 0.12) 1px, transparent 1px);
  background-size: 55px 55px;
}
.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 55%, rgba(24, 135, 197, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(24, 135, 197, 0.15) 0%, transparent 40%),
    linear-gradient(180deg, transparent 55%, rgba(0,0,0,0.45) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 6rem 1rem 5rem;
}
.hero-logo {
  max-width: 200px;
  height: auto;
  margin: 0 auto 1.75rem;
  display: block;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.35));
}
.hero-brand-name {
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  color: rgba(255, 255, 255, 0.80);
  margin-bottom: 1.25rem;
}
.hero-catch {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.4;
  margin-bottom: 0;
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
}

/* ================================================================
   Section Commons
   ================================================================ */
section { padding: 5.5rem 0; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}
.section-title-en {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.4rem;
}
.section-divider {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 0.85rem 0 2.5rem;
}
.section-divider.center { margin-left: auto; margin-right: auto; }
.bg-light-custom { background: var(--color-light-bg); }

/* ================================================================
   4.3 About
   ================================================================ */
.about-text {
  font-size: 1.02rem;
  line-height: 2.05;
  color: var(--color-text);
  white-space: pre-line;
}

/* ================================================================
   4.4 Services
   ================================================================ */
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem 1.75rem;
  height: 100%;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.service-card:hover {
  box-shadow: 0 12px 36px rgba(24, 135, 197, 0.14);
  transform: translateY(-5px);
  border-color: rgba(24, 135, 197, 0.25);
}
.service-card .icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-accent-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 1.2rem;
}
.service-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}
.service-card p {
  font-size: 0.88rem;
  color: var(--color-text-mute);
  line-height: 1.75;
  margin: 0;
}

/* ================================================================
   4.5 Track Record
   ================================================================ */
.track-card {
  background: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.75rem 2rem;
  height: 100%;
  box-shadow: 0 2px 12px rgba(26, 58, 92, 0.06);
  transition: box-shadow var(--transition), transform var(--transition);
}
.track-card:hover {
  box-shadow: 0 8px 28px rgba(24, 135, 197, 0.15);
  transform: translateY(-3px);
}
.track-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}
.track-card p {
  font-size: 0.88rem;
  color: var(--color-text-mute);
  margin: 0;
  line-height: 1.75;
}
.track-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--color-accent-lt);
  color: var(--color-accent);
  border-radius: 4px;
  padding: 0.2rem 0.65rem;
  margin-bottom: 0.65rem;
}

/* ================================================================
   4.6 Blog
   ================================================================ */
.blog-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  box-shadow: 0 12px 36px rgba(24, 135, 197, 0.14);
  transform: translateY(-5px);
  border-color: rgba(24, 135, 197, 0.2);
}
.blog-card img {
  width: 100%;
  height: 185px;
  object-fit: cover;
}
.blog-card-body {
  padding: 1.25rem 1.4rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-date { font-size: 0.76rem; color: var(--color-text-mute); margin-bottom: 0.4rem; }
.blog-card-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.55rem;
  line-height: 1.55;
  flex: 1;
}
.blog-excerpt {
  font-size: 0.82rem;
  color: var(--color-text-mute);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.blog-read-more {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
}
.blog-read-more:hover { text-decoration: underline; }

.btn-outline-primary-custom {
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: var(--radius);
  font-weight: 700;
  padding: 0.65rem 2rem;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition), color var(--transition);
}
.btn-outline-primary-custom:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ================================================================
   4.7 Profile
   ================================================================ */
.profile-img {
  width: 100%;
  max-width: 280px;
  height: 360px;
  object-fit: cover;
  object-position: top center;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(24, 135, 197, 0.18);
  display: block;
}
.profile-img-wrap {
  position: relative;
  display: inline-block;
}
.profile-badge {
  position: absolute;
  bottom: -14px;
  right: -14px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(24, 135, 197, 0.45);
  white-space: nowrap;
}
.profile-name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.2rem;
}
.profile-name-en {
  font-size: 1rem;
  color: var(--color-text-mute);
  font-weight: 400;
  margin-bottom: 1.25rem;
}
.profile-speciality {
  background: var(--color-accent-lt);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 6px 6px 0;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-dk);
  margin-bottom: 2rem;
}
.career-item {
  display: flex;
  gap: 1.25rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(26, 58, 92, 0.07);
}
.career-year {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 46px;
  padding-top: 0.05rem;
}
.career-desc { font-size: 0.88rem; color: var(--color-text); line-height: 1.6; }

/* ================================================================
   4.8 CTA Section
   ================================================================ */
.cta-section {
  background: linear-gradient(140deg, #07192e 0%, #0f2744 50%, #1470a8 100%);
  padding: 5.5rem 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(24, 135, 197, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 135, 197, 0.09) 1px, transparent 1px);
  background-size: 48px 48px;
}
.cta-inner { position: relative; z-index: 2; }
.btn-cta-white {
  background: var(--color-white);
  color: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.9rem 2.8rem;
  letter-spacing: 0.02em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  display: inline-block;
}
.btn-cta-white:hover {
  background: var(--color-accent-lt);
  color: var(--color-accent-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ================================================================
   4.9 Footer
   ================================================================ */
.footer-custom {
  background: #0a1c30;
  color: rgba(255, 255, 255, 0.5);
  padding: 2rem 0;
  font-size: 0.85rem;
}
.footer-custom a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-custom a:hover { color: var(--color-white); }