/* ===========================================
   合同会社Yokoo コーポレートサイト カスタムCSS
   Tailwindで賄えない部分のみ記述
   =========================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;900&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* --- CSS変数（カラートークン） --- */
:root {
  --color-cyan:      #2CC9E6;
  --color-cyan-dark: #17B9D6;
  --color-orange:    #FFB400;
  --color-navy:      #0F2847;
  --color-slate:     #475569;
  --color-white:     #FFFFFF;
  --color-off-white: #F7F9FC;
  --color-light-cyan:#F0FBFE;
  --color-light-yel: #FFF8EB;
  --color-border:    #E5E7EB;
  --gradient-cyan:   linear-gradient(135deg, #2CC9E6 0%, #17B9D6 100%);
}

/* --- ベーススタイル --- */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  color: var(--color-navy);
  background-color: var(--color-white);
  line-height: 1.8;
}

/* --- スクロールフェードイン（IntersectionObserver用） --- */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* staggerディレイ */
.fade-up[data-delay="1"] { transition-delay: 100ms; }
.fade-up[data-delay="2"] { transition-delay: 200ms; }
.fade-up[data-delay="3"] { transition-delay: 300ms; }
.fade-up[data-delay="4"] { transition-delay: 400ms; }
.fade-up[data-delay="5"] { transition-delay: 500ms; }

/* prefers-reduced-motion 対応 */
@media (prefers-reduced-motion: reduce) {
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- ヘッダー --- */
#site-header {
  transition: background-color 300ms ease,
              backdrop-filter 300ms ease,
              box-shadow 300ms ease;
}

#site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(15, 40, 71, 0.08);
}

/* ヘッダー非表示/表示（スクロールダウンで隠す） */
#site-header.hide-header {
  transform: translateY(-100%);
}

#site-header {
  transform: translateY(0);
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1),
              background-color 300ms ease,
              backdrop-filter 300ms ease,
              box-shadow 300ms ease;
}

/* --- ナビリンクのアンダーラインアニメーション --- */
.nav-link {
  position: relative;
  text-decoration: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan);
  transition: width 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after {
  width: 100%;
}

/* --- CTAボタン（プライマリ） --- */
.btn-primary {
  background: var(--gradient-cyan);
  color: white;
  border-radius: 9999px;
  padding: 14px 32px;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px -10px rgba(15, 40, 71, 0.35);
  transition: transform 300ms ease, box-shadow 300ms ease, filter 300ms ease;
  text-decoration: none;
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 16px 40px -10px rgba(44, 201, 230, 0.5);
  filter: brightness(1.05);
}

/* --- CTAボタン（セカンダリ） --- */
.btn-secondary {
  border: 2px solid var(--color-navy);
  color: var(--color-navy);
  border-radius: 9999px;
  padding: 12px 30px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background-color 300ms ease, color 300ms ease, transform 300ms ease;
  text-decoration: none;
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: white;
  transform: scale(1.02);
}

/* --- CTAボタン（白背景・グラデーション背景用） --- */
.btn-white {
  background: white;
  color: var(--color-navy);
  border-radius: 9999px;
  padding: 16px 40px;
  font-weight: 700;
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  transition: transform 300ms ease, box-shadow 300ms ease;
  text-decoration: none;
}

.btn-white:hover {
  transform: scale(1.02) translateY(-2px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

/* --- サービスカード --- */
.service-card {
  background: white;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  padding: 32px;
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(15, 40, 71, 0.12);
}

/* --- アイコン背景（薄い水色の円） --- */
.icon-circle {
  width: 56px;
  height: 56px;
  background: var(--color-light-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-circle svg {
  width: 28px;
  height: 28px;
  color: var(--color-cyan);
  stroke: var(--color-cyan);
  stroke-width: 1.5;
}

/* --- 課題カード --- */
.problem-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(15, 40, 71, 0.06);
  padding: 28px;
  transition: transform 300ms ease, box-shadow 300ms ease;
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 40, 71, 0.1);
}

/* --- ミッション・ビジョンセクション --- */
.mission-section {
  background-color: var(--color-navy);
  position: relative;
  overflow: hidden;
}

/* --- グラデーションCTAセクション --- */
.cta-gradient {
  background: var(--gradient-cyan);
}

/* --- 会社概要DL --- */
.company-dl dt {
  font-weight: 600;
  color: var(--color-slate);
  font-size: 0.875rem;
  white-space: nowrap;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.company-dl dd {
  color: var(--color-navy);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

/* --- モバイルメニューオーバーレイ --- */
#mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--color-navy);
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

#mobile-menu.is-open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 400ms ease, transform 400ms ease;
}

#mobile-menu.is-open .mobile-nav-item {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.is-open .mobile-nav-item:nth-child(1) { transition-delay: 100ms; }
#mobile-menu.is-open .mobile-nav-item:nth-child(2) { transition-delay: 200ms; }
#mobile-menu.is-open .mobile-nav-item:nth-child(3) { transition-delay: 300ms; }
#mobile-menu.is-open .mobile-nav-item:nth-child(4) { transition-delay: 400ms; }
#mobile-menu.is-open .mobile-nav-item:nth-child(5) { transition-delay: 500ms; }

/* --- ハンバーガーアイコン --- */
.hamburger {
  width: 28px;
  height: 20px;
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform 300ms ease, opacity 300ms ease;
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ハンバーガーメニューが開いている時は白色に */
#site-header.menu-open .hamburger span {
  background: white;
}

/* --- ドットパターン（ヒーローセクション背景装飾） --- */
.dot-pattern {
  background-image: radial-gradient(circle, #2CC9E640 1px, transparent 1px);
  background-size: 28px 28px;
}

/* --- セクション見出しのサブテキスト --- */
.section-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-cyan);
  font-size: 0.875rem;
}

/* --- 数字強調（実績表示） --- */
.stat-number {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  line-height: 1;
  color: var(--color-navy);
}

/* --- オレンジアクセントアンダーライン --- */
.accent-underline {
  position: relative;
  display: inline-block;
}

.accent-underline::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-orange);
  border-radius: 2px;
  opacity: 0.85;
}

/* --- ブロブSVG（ヒーロー右上） --- */
.hero-blob {
  position: absolute;
  top: -80px;
  right: -120px;
  width: 600px;
  height: 600px;
  opacity: 0.15;
  pointer-events: none;
}

/* --- フッター --- */
footer a:hover {
  color: var(--color-cyan);
  transition: color 200ms ease;
}

/* --- パンくずリスト --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-slate);
}

.breadcrumb a {
  color: var(--color-cyan);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* --- ページヘッダー（内部ページ用） --- */
.page-hero {
  background: linear-gradient(135deg, #F0FBFE 0%, #F7F9FC 100%);
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--color-border);
}

/* --- recruit Coming Soon --- */
.coming-soon-bg {
  background: linear-gradient(135deg, #F0FBFE 0%, #FFF8EB 100%);
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- contact メールカード --- */
.contact-card {
  background: white;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  padding: 48px;
  box-shadow: 0 4px 24px rgba(15, 40, 71, 0.08);
}

/* --- テーブルスタイル（会社概要） --- */
.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.info-table th {
  width: 200px;
  font-weight: 600;
  color: var(--color-slate);
  background: var(--color-off-white);
  white-space: nowrap;
}

.info-table td {
  color: var(--color-navy);
}

/* --- Privacy Policy --- */
.privacy-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  margin: 40px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-light-cyan);
}

.privacy-content p,
.privacy-content li {
  color: #334155;
  line-height: 1.9;
  margin-bottom: 12px;
}

.privacy-content ul {
  padding-left: 1.5rem;
  list-style-type: disc;
}

/* --- Googleマップ埋め込み --- */
.map-container {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-container iframe {
  display: block;
  width: 100%;
  height: 400px;
}

/* --- ヒーローグラフSVG（装飾） --- */
.hero-graph {
  position: relative;
  width: 100%;
  height: 320px;
}

/* --- グラデーションテキスト --- */
.gradient-text {
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- scrollbar styling --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-cyan); }