/* ============================================
   Plus Core - プレミアムデザインシステム
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;800&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

:root {
  /* カラーパレット */
  --c-navy-900: #050b14;
  --c-navy-800: #0a1628;
  --c-navy-700: #132744;
  --c-blue-500: #275bb5;
  --c-blue-400: #3a75e0;
  --c-blue-glow: rgba(39, 91, 181, 0.4);
  --c-white: #ffffff;
  --c-gray-50: #f8fafc;
  --c-gray-100: #f1f5f9;
  --c-gray-200: #e2e8f0;
  --c-gray-400: #94a3b8;
  --c-gray-800: #1e293b;
  
  --c-accent: var(--c-blue-500);

  /* タイポグラフィ */
  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Plus Jakarta Sans', sans-serif;

  /* スペーシング & サイジング */
  --sp-section: clamp(80px, 12vw, 160px);
  --container-w: 1280px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;

  /* エフェクト */
  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 40px rgba(5, 11, 20, 0.08);
  --shadow-lg: 0 20px 60px rgba(5, 11, 20, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-bg-light: rgba(255, 255, 255, 0.8);
  
  /* トランジション */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-circ: cubic-bezier(0.85, 0, 0.15, 1);
  --trans-base: 0.6s var(--ease-out-expo);
  --trans-fast: 0.3s var(--ease-out-expo);
}

/* --- リセット & ベース --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-ja);
  color: var(--c-gray-800);
  background-color: var(--c-gray-50);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- ユーティリティ --- */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) { .container { padding: 0 20px; } }

.text-en { font-family: var(--font-en); }
.text-gradient {
  color: var(--c-blue-500);
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--c-blue-500);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--c-blue-500);
}
.section-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

/* --- スクロールアニメーション (GSAP風) --- */
.fade-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.d-1 { transition-delay: 0.1s; }
.d-2 { transition-delay: 0.2s; }
.d-3 { transition-delay: 0.3s; }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  padding: 24px 0;
  transition: padding var(--trans-base), background-color var(--trans-base), backdrop-filter var(--trans-base);
}
.site-header.is-scrolled {
  padding: 12px 0;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
/* ヒーロー（暗背景）上のヘッダー文字色制御 */
.site-header:not(.is-scrolled) .nav-menu a { color: var(--c-white); }
.site-header:not(.is-scrolled) .logo-text { color: var(--c-white); }
.site-header:not(.is-scrolled) .menu-toggle span { background-color: var(--c-white); }

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1001;
}
.logo-svg {
  height: 40px;
  width: auto;
  transition: all var(--trans-base);
}
.logo-color-blue {
  fill: var(--c-blue-400);
  transition: fill var(--trans-base);
}
.logo-color-navy {
  fill: var(--c-white);
  transition: fill var(--trans-base);
}
/* 白背景になったら本来の色（ネイビー）へ */
.site-header.is-scrolled .logo-color-blue {
  fill: var(--c-blue-500);
}
.site-header.is-scrolled .logo-color-navy {
  fill: var(--c-navy-900);
}
.logo:hover .logo-svg { opacity: 0.8; }
.logo-text {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--c-navy-900);
  transition: color var(--trans-fast);
}

.nav-menu {
  display: flex;
  gap: 40px;
}
.nav-menu a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-navy-800);
  transition: color var(--trans-fast);
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background-color: var(--c-blue-500);
  transition: width var(--trans-fast);
}
.nav-menu a:hover::after { width: 100%; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 28px; height: 2px;
  background-color: var(--c-navy-900);
  transition: transform 0.4s var(--ease-out-expo), opacity 0.4s;
}
.menu-toggle.is-active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 36px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-ja);
  transition: all var(--trans-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background-color: var(--c-blue-500);
  color: var(--c-white);
  box-shadow: 0 4px 15px var(--c-blue-glow);
}
.btn-primary:hover {
  background-color: var(--c-blue-400);
  transform: translateY(-4px);
  box-shadow: 0 12px 25px var(--c-blue-glow);
}
.btn-outline {
  background-color: transparent;
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  background-color: var(--c-white);
  color: var(--c-navy-900);
  transform: translateY(-4px);
}
.btn-icon {
  width: 20px; height: 20px;
  transition: transform var(--trans-fast);
}
.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* ============================================
   Hero Section (Split & Glass)
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--c-navy-900);
  overflow: hidden;
  padding-top: 80px;
}
/* 背景グラフィック */
.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 1;
}
.hero-canvas {
  width: 100%; height: 100%;
}
.hero-glow-1 {
  position: absolute;
  top: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(39,91,181,0.2) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
}
.hero-glow-2 {
  position: absolute;
  bottom: -20%; left: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
}

.hero-container {
  position: relative;
  z-index: 10;
  width: 100%;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-content {
  color: var(--c-white);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px 8px 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 1px;
  margin-bottom: 40px;
  backdrop-filter: blur(10px);
}
.hero-badge-tag {
  background: var(--c-blue-500);
  padding: 4px 10px;
  border-radius: 100px;
  font-weight: 700;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}
.hero-title span {
  display: block;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.7);
  margin-bottom: 48px;
  max-width: 500px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ヒーロー右側：勤怠アプリ宣伝カード */
.hero-visual {
  position: relative;
  z-index: 20;
}
.app-promo-card {
  display: block;
  background: linear-gradient(145deg, rgba(39,91,181,0.1) 0%, rgba(5,11,20,0.6) 100%);
  border: 1px solid rgba(39,91,181,0.3);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
  transition: transform var(--trans-base), box-shadow var(--trans-base);
  text-decoration: none;
}
.app-promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 40px 80px rgba(39,91,181,0.15);
  border-color: rgba(39,91,181,0.6);
}
.app-promo-glow {
  position: absolute;
  top: -50px; right: -50px;
  width: 200px; height: 200px;
  background: var(--c-blue-500);
  filter: blur(80px);
  opacity: 0.4;
  border-radius: 50%;
  transition: opacity var(--trans-base);
  z-index: 1;
}
.app-promo-card:hover .app-promo-glow {
  opacity: 0.7;
}
.app-promo-badge {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--c-blue-400);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}
.app-promo-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}
.app-promo-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 32px;
  position: relative;
  z-index: 2;
  line-height: 1.6;
}
.app-promo-ui {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  z-index: 2;
}
.ui-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.ui-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue-400), var(--c-blue-500));
}
.ui-lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.ui-line {
  height: 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.1);
}
.ui-line.short { width: 40%; }
.ui-line.long { width: 80%; }
.ui-button {
  width: 100%;
  padding: 12px;
  text-align: center;
  background: rgba(39,91,181,0.2);
  color: var(--c-blue-400);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(39,91,181,0.3);
}

/* ============================================
   About Section (巨大タイポグラフィ背景)
   ============================================ */
.about {
  padding: var(--sp-section) 0;
  background-color: #f4f7fb; /* 白連続を避けるための淡いブルーグレー */
  position: relative;
  overflow: hidden;
}
.about-bg-text {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-en);
  font-size: 25vw;
  font-weight: 800;
  color: var(--c-navy-900); /* 本来の色 */
  opacity: 0.03; /* 色の差ではなく、透明度でうっすら見せる（強制ダークモード対策） */
  white-space: nowrap;
  z-index: 1;
  pointer-events: none;
  user-select: none;
}
.about-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 80px;
  align-items: center;
}
.about-lead {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 24px;
}
.about-text {
  font-size: 1.05rem;
  color: var(--c-gray-400);
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
.stat-box {
  padding: 32px 24px;
  background: var(--c-white);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}
.stat-num {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--c-blue-500);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.85rem;
  font-weight: 600;
}

/* ============================================
   Businesses Section (Bento Box Hover Expand)
   ============================================ */
.businesses {
  padding: var(--sp-section) 0;
  background-color: var(--c-gray-50);
}
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 320px;
  gap: 24px;
  margin-top: 60px;
}
.bento-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  group;
  box-shadow: var(--shadow-sm);
  transition: transform var(--trans-base), box-shadow var(--trans-base);
}
.bento-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.bento-img {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease-out-expo);
}
.bento-item:hover .bento-img {
  transform: scale(1.05);
}
.bento-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to top, rgba(5,11,20,0.9) 0%, rgba(5,11,20,0.2) 50%, transparent 100%);
}
.bento-content {
  position: absolute;
  bottom: 0; left: 0; width: 100%;
  padding: 40px;
  color: var(--c-white);
}
.bento-num {
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--c-blue-400);
  margin-bottom: 8px;
}
.bento-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.bento-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  opacity: 0;
  max-height: 0;
  transform: translateY(20px);
  transition: all 0.5s var(--ease-out-expo);
}
.bento-item:hover .bento-desc {
  opacity: 1;
  max-height: 100px;
  transform: translateY(0);
  margin-top: 16px;
}

/* Grid areas */
.bento-1 { grid-column: span 7; }
.bento-2 { grid-column: span 5; }
.bento-3 { grid-column: span 12; height: 400px;}

/* ============================================
   Recruitment (Horizontal layout / Bento)
   ============================================ */
.recruitment {
  padding: var(--sp-section) 0;
  background-color: var(--c-navy-900);
  color: var(--c-white);
}
.recruitment .section-label { color: var(--c-gray-400); }
.recruit-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.r-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: background var(--trans-base);
}
.r-card:hover {
  background: rgba(255,255,255,0.06);
}
.r-icon {
  width: 60px; height: 60px;
  background: var(--c-blue-500);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.r-icon svg { width: 28px; height: 28px; color: var(--c-white); }
.r-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.r-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: #02050a;
  color: rgba(255,255,255,0.5);
  padding: 80px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.logo-footer {
  height: 32px; 
  width: auto; 
  opacity: 0.8;
}
.footer-logo span {
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--c-white);
}
.footer-links h4 {
  color: var(--c-white);
  font-family: var(--font-en);
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a:hover {
  color: var(--c-blue-400);
}
.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.05);
  font-family: var(--font-en);
  font-size: 0.85rem;
}

/* ============================================
   Company Section
   ============================================ */
.company {
  padding: var(--sp-section) 0;
  background-color: var(--c-white);
}
.company-bento {
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-top: 40px;
  box-shadow: var(--shadow-sm);
}
.company-list {
  display: flex;
  flex-direction: column;
}
.company-row {
  display: flex;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-gray-200);
}
.company-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.company-row:first-child {
  padding-top: 0;
}
.company-row dt {
  width: 200px;
  font-weight: 700;
  color: var(--c-blue-500);
  flex-shrink: 0;
}
.company-row dd {
  flex: 1;
  color: var(--c-gray-800);
  font-weight: 500;
}
@media (max-width: 768px) {
  .company-row { flex-direction: column; gap: 8px; }
  .company-row dt { width: 100%; }
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
  padding: var(--sp-section) 0;
  background-color: var(--c-gray-50);
}
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
@media (max-width: 1024px) {
  .contact-container { grid-template-columns: 1fr; gap: 40px; }
}
.contact-form-wrapper {
  background: var(--c-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.form-group {
  margin-bottom: 24px;
}
.form-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.form-group .required {
  background: var(--c-blue-500);
  color: var(--c-white);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-sm);
  background: var(--c-gray-50);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--trans-fast);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--c-blue-400);
  background: var(--c-white);
  box-shadow: 0 0 0 4px rgba(39,91,181,0.1);
}

/* ============================================
   Mobile Sticky Bottom Action Bar
   ============================================ */
.mobile-action-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; width: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--c-gray-200);
  padding: 12px 20px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  z-index: 999;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
}
.mobile-action-bar .btn {
  width: 100%;
  padding: 14px;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .about-container { grid-template-columns: 1fr; gap: 40px;}
  .bento-1, .bento-2, .bento-3 { grid-column: span 12; }
}

@media (max-width: 768px) {
  /* Header & Menu */
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 0; right: -100%;
    width: 85%; height: 100vh;
    background: var(--c-white);
    flex-direction: column;
    padding: 100px 40px;
    transition: right var(--trans-base);
    box-shadow: -10px 0 40px rgba(0,0,0,0.1);
  }
  .site-header.nav-open .nav-menu { right: 0; }
  .site-header.nav-open .menu-toggle span { background-color: var(--c-navy-900); }
  .nav-menu a { color: var(--c-navy-900) !important; font-size: 1.25rem; }
  
  /* Sections */
  :root { --sp-section: 80px; }
  .hero { padding-top: 100px; min-height: auto; padding-bottom: 80px;}
  
  /* Typography */
  .hero-title { font-size: 2.2rem; }
  
  /* Recruitment Bento - Horizontal scroll on mobile */
  .recruit-bento {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 24px;
    margin-right: -20px; /* Bleed edge */
    padding-right: 20px;
  }
  .r-card {
    min-width: 280px;
    scroll-snap-align: start;
    padding: 32px 24px;
  }
  
  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  
  /* Bottom Bar */
  .mobile-action-bar { display: block; }
  body { padding-bottom: 80px; } /* Space for bottom bar */
}