/*
Theme Name: ICHIE
Theme URI: https://ichie.jpn.com
Author: ICHIE
Author URI: https://ichie.jpn.com
Description: 株式会社ICHIE コーポレートサイト カスタムテーマ
Version: 1.0.0
License: All Rights Reserved
Text Domain: ichie
*/
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --black: #0a0a0a;
    --white: #f8f8f6;
    --gray-100: #f0efed;
    --gray-200: #d8d7d4;
    --gray-400: #9a9893;
    --gray-600: #5a5956;
    --gray-800: #2c2b29;
    --font-display: 'Cormorant Garamond', 'Noto Serif JP', serif;
    --font-body: 'Noto Serif JP', 'Shippori Mincho', serif;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--white);
    color: var(--black);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.8;
    overflow-x: hidden;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 48px;
    mix-blend-mode: difference;
  }

  .nav-logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.18em;
    color: var(--white);
    text-decoration: none;
    
  }

  .nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
  }

  .nav-links a {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
  }

  .nav-links a:hover { opacity: 1; }

  /* ─── HERO ─── */
  #hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 48px;
  }


  /* 背景動画 */
  .hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
  }

  /* 動画がない場合のフォールバック背景画像 */
  .hero-bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
  }

  /* 暗めのオーバーレイ（テキスト読みやすさ確保） */
  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
      to right,
      rgba(10,10,10,0.0) 0%,
      rgba(10,10,10,0.0) 100%
    );
    z-index: 1;
  }

  /* テキストコンテンツはオーバーレイの上に */
  .hero-content {
    position: relative;
    z-index: 2;
  }

  .hero-eyebrow {
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(248,248,246,0.5);
    margin-bottom: 20px;
  }

  .hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(52px, 8.5vw, 128px);
    font-weight: 300;
    line-height: 1.0;
    letter-spacing: 0.04em;
    color: var(--white);
    margin-bottom: 32px;
    
  }

  .hero-title span { display: block; }

  .hero-title .ja {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(12px, 1.4vw, 17px);
    font-weight: 200;
    letter-spacing: 0.55em;
    font-style: normal;
    color: rgba(248,248,246,0.45);
    margin-bottom: 14px;
    display: block;
  }

  .hero-sub {
    font-size: 13px;
    color: rgba(248,248,246,0.55);
    letter-spacing: 0.08em;
    max-width: 400px;
    line-height: 2.1;
  }

  /* ミュートボタン */
  .hero-mute-btn {
    position: absolute;
    bottom: 80px;
    right: 100px;
    z-index: 2;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(248,248,246,0.25);
    background: rgba(10,10,10,0.4);
    color: rgba(248,248,246,0.6);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s, color 0.3s;
  }
  .hero-mute-btn:hover {
    border-color: rgba(248,248,246,0.6);
    color: var(--white);
  }

  .hero-scroll {
    position: absolute;
    right: 48px;
    bottom: 80px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 10px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(248,248,246,0.4);
    writing-mode: vertical-rl;
  }

  .hero-scroll::after {
    content: '';
    width: 1px;
    height: 60px;
    background: rgba(248,248,246,0.3);
    animation: scrollLine 1.8s 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; }
  }

  /* ─── ビデオ切替バナー（デモ用） ─── */
  .hero-demo-note {
    position: absolute;
    top: 80px;
    left: 48px;
    z-index: 3;
    font-size: 10px;
    letter-spacing: 0.15em;
    color: rgba(248,248,246,0.35);
    border: 1px solid rgba(248,248,246,0.15);
    padding: 6px 14px;
  }
  /* ─── SECTION BASE ─── */
  section {
    padding: 120px 48px;
  }

  .section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(52px, 6.5vw, 96px);
    font-weight: 300;
    letter-spacing: 0.05em;
    line-height: 1.15;
    margin-bottom: 64px;
    color: var(--black);
    
  }

  /* ─── ABOUT ─── */
  #about {
    background: var(--white);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
  }

  .about-text p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 2.2;
    margin-bottom: 20px;
  }

  .about-text p strong {
    color: var(--black);
    font-weight: 500;
  }

  .about-right {
    border-left: 1px solid var(--gray-200);
    padding-left: 64px;
    display: flex;
    align-items: center;
  }

  .about-stat {
    margin-bottom: 40px;
  }

  .about-stat-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 52px;
    font-weight: 300;
    
    line-height: 1;
    letter-spacing: 0.02em;
    color: var(--black);
  }

  .about-stat-label {
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--gray-400);
    margin-top: 6px;
  }

  /* ─── SERVICES ─── */
  #services {
    background: var(--black);
    max-width: none;
    padding: 120px 48px;
  }

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


  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--gray-800);
    border: 1px solid var(--gray-800);
  }

  .service-card {
    background: var(--black);
    padding: 52px 40px;
    position: relative;
    transition: background 0.3s;
    cursor: default;
  }

  .service-card:hover {
    background: var(--gray-800);
  }

  .service-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 64px;
    font-weight: 300;
    
    color: var(--gray-800);
    line-height: 1;
    margin-bottom: 24px;
    transition: color 0.3s;
  }

  .service-card:hover .service-num {
    color: var(--gray-600);
  }

  .service-name {
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 20px;
  }

  .service-desc {
    font-size: 13px;
    color: var(--gray-400);
    line-height: 2;
  }

  .service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
  }

  .service-tag {
    font-size: 10px;
    letter-spacing: 0.15em;
    padding: 5px 12px;
    border: 1px solid var(--gray-800);
    color: var(--gray-600);
    transition: border-color 0.3s, color 0.3s;
  }

  .service-card:hover .service-tag {
    border-color: var(--gray-600);
    color: var(--gray-400);
  }

  /* ─── WORKS ─── */
  #works {
    background: var(--gray-100);
    max-width: none;
  }

  .works-inner {
    max-width: 1200px;
    margin: 0 auto;
  }

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

  .work-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
  }

  .work-thumb {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 48px;
    color: var(--gray-400);
    transition: transform 0.5s;
    position: relative;
    overflow: hidden;
  }

  .work-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--black);
    opacity: 0;
    transition: opacity 0.3s;
  }

  .work-item:hover .work-thumb::after {
    opacity: 0.4;
  }

  .work-item:hover .work-thumb {
    transform: scale(1.04);
  }

  .work-meta {
    padding: 16px 0;
  }

  .work-cat {
    font-size: 10px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 6px;
  }

  .work-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--black);
  }

  /* ─── INFO / COMPANY ─── */
  #company {
    background: var(--white);
    max-width: 1200px;
    margin: 0 auto;
  }

  .company-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
  }

  .company-table tr {
    border-bottom: 1px solid var(--gray-200);
  }

  .company-table td {
    padding: 20px 0;
    vertical-align: top;
  }

  .company-table td:first-child {
    width: 200px;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-400);
    padding-right: 40px;
  }

  .company-table td:last-child {
    color: var(--gray-600);
    line-height: 1.8;
  }

  /* ─── CONTACT ─── */
  #contact {
    background: var(--white);
    text-align: center;
    padding: 120px 48px;
  }


  #contact .section-title {
    color: var(--black);
    margin-bottom: 20px;
  }

  .contact-lead {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 64px;
    line-height: 2;
  }

  .contact-form {
    max-width: 560px;
    margin: 0 auto;
    text-align: left;
  }

  .form-row {
    margin-bottom: 24px;
  }

  .form-row label {
    display: block;
    font-size: 10px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gray-600);
    opacity: 1;
    margin-bottom: 8px;
  }

  .form-row input,
  .form-row textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 300;
    color: var(--black);
    outline: none;
    transition: border-color 0.3s;
    caret-color: var(--black);
  }

  .form-row input:focus,
  .form-row textarea:focus {
    border-bottom-color: var(--gray-600);
  }

  .form-row textarea {
    height: 100px;
    resize: none;
  }

  .form-row input::placeholder,
  .form-row textarea::placeholder {
    color: var(--gray-200);
  }

  .btn-submit {
    width: 100%;
    margin-top: 16px;
    padding: 18px;
    background: var(--black);
    color: var(--white);
    border: none;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s, color 0.3s;
  }

  .btn-submit:hover {
    background: var(--gray-800);
  }

  /* ─── FOOTER ─── */
  footer {
    background: var(--black);
    border-top: 1px solid var(--gray-800);
    padding: 40px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .footer-logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 18px;
    font-weight: 300;
    
    letter-spacing: 0.15em;
    color: var(--gray-600);
    text-decoration: none;
  }

  .footer-copy {
    font-size: 11px;
    color: var(--gray-800);
    letter-spacing: 0.1em;
  }

  /* ─── HERO TITLE TEXT ─── */
  .hero-site-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(32px, 5vw, 72px);
    font-weight: 300;
    letter-spacing: 0.3em;
    color: var(--black);
    line-height: 1;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1s cubic-bezier(0.22,1,0.36,1) 0.4s forwards;
  }

  /* ─── ANIMATIONS ─── */

  /* ナビ：スクロールで背景をフェードイン */
  nav.scrolled {
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    mix-blend-mode: normal;
    transition: background 0.4s ease, backdrop-filter 0.4s ease;
  }
  nav.scrolled .nav-logo,
  nav.scrolled .nav-links a {
    color: var(--white);
  }

  /* ヒーロー：eyebrow・subコピーのフェードアップ */
  .hero-eyebrow {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 0.9s cubic-bezier(0.22,1,0.36,1) 0.3s forwards;
  }
  .hero-sub {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 0.9s cubic-bezier(0.22,1,0.36,1) 0.6s forwards;
  }
  .hero-scroll {
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
  }

  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    to { opacity: 1; }
  }

  /* スクロールフェードイン：共通クラス */
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s cubic-bezier(0.22,1,0.36,1),
                transform 0.8s cubic-bezier(0.22,1,0.36,1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* 遅延バリエーション */
  .reveal-d1 { transition-delay: 0.1s; }
  .reveal-d2 { transition-delay: 0.2s; }
  .reveal-d3 { transition-delay: 0.3s; }
  .reveal-d4 { transition-delay: 0.4s; }
  .reveal-d5 { transition-delay: 0.5s; }

  /* セクションラベル：左からスライドイン */

  /* Aboutの数字：カウントアップ用 */
  .about-stat-num {
    transition: color 0.3s;
  }

  /* Businessカード：下からひとつずつ */
  .service-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1),
                transform 0.7s cubic-bezier(0.22,1,0.36,1),
                background 0.3s;
  }
  .service-card.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .service-card:nth-child(1) { transition-delay: 0s; }
  .service-card:nth-child(2) { transition-delay: 0.15s; }
  .service-card:nth-child(3) { transition-delay: 0.3s; }

  /* Worksカード */
  .work-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1),
                transform 0.7s cubic-bezier(0.22,1,0.36,1);
  }
  .work-item.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .work-item:nth-child(1) { transition-delay: 0s; }
  .work-item:nth-child(2) { transition-delay: 0.12s; }
  .work-item:nth-child(3) { transition-delay: 0.24s; }

  /* Companyテーブル行：順番にフェード */
  .company-table tr {
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .company-table tr.visible {
    opacity: 1;
    transform: translateX(0);
  }

  /* ページローダー */
  #page-loader {
    position: fixed;
    inset: 0;
    background: var(--black);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease 0.2s, visibility 0.6s ease 0.2s;
  }
  #page-loader.hidden {
    opacity: 0;
    visibility: hidden;
  }
  .loader-logo {
    font-family: 'Cormorant Garamond', serif;
    
    font-size: 32px;
    font-weight: 300;
    letter-spacing: 0.25em;
    color: var(--white);
    opacity: 0;
    animation: loaderReveal 0.8s ease 0.1s forwards;
  }
  .loader-line {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--white);
    width: 0%;
    animation: loaderBar 0.9s cubic-bezier(0.22,1,0.36,1) forwards;
  }
  @keyframes loaderReveal {
    to { opacity: 1; }
  }
  @keyframes loaderBar {
    to { width: 100%; }
  }


  /* ─── HERO PC / SP 画像切り替え ─── */
  /* ブレイクポイント：768px */
  .hero-bg-sp {
    display: none;
  }

  @media (max-width: 768px) {
    .hero-bg-pc {
      display: none;
    }
    .hero-bg-sp {
      display: block;
    }
  }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 768px) {
    #hero { justify-content: center; padding-top: 0; }
    nav { padding: 20px 24px; }
    .nav-links { display: none; }
    #hero { padding: 0 24px 64px; }
    section { padding: 80px 24px; }
    #about {
      grid-template-columns: 1fr;
      gap: 48px;
    }
    .about-right {
      border-left: none;
      border-top: 1px solid var(--gray-200);
      padding-left: 0;
      padding-top: 48px;
    }
    .services-grid { grid-template-columns: 1fr; }
    .works-grid { grid-template-columns: 1fr 1fr; }
    footer { flex-direction: column; gap: 16px; text-align: center; }
    .hero-scroll { display: none; }
    #services { padding: 80px 24px; }
    #contact { padding: 80px 24px; }
    footer { padding: 32px 24px; }
  }

  @media (max-width: 480px) {
    .works-grid { grid-template-columns: 1fr; }
  }