/* ========================================
   Trust vintage - プレミアムアニメーション
   他にないリッチでかっこいい演出
   ======================================== */

:root {
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-expo: cubic-bezier(0.87, 0, 0.13, 1);
  --duration-slow: 2s;
  --duration-normal: 1.2s;
  --duration-fast: 0.7s;
}

/* ========================================
   スクロール連動 - バリエーション
   ======================================== */

/* no-JS時：すべて表示（フォールバック） */
html:not(.js-loaded) [data-animate] {
  opacity: 1 !important;
  filter: none !important;
  clip-path: none !important;
  transform: none !important;
}

/* JS有効時：アニメーション用の初期状態 */
.js-loaded [data-animate] {
  opacity: 0;
  filter: blur(8px);
  clip-path: inset(0 0 100% 0);
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              filter var(--duration-slow) var(--ease-out-expo),
              clip-path var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}

.js-loaded [data-animate].is-visible {
  opacity: 1;
  filter: blur(0);
  clip-path: inset(0 0 0 0);
  transform: translateY(0);
}

.js-loaded [data-animate-delay="1"] { transition-delay: 0.2s; }
.js-loaded [data-animate-delay="2"] { transition-delay: 0.4s; }
.js-loaded [data-animate-delay="3"] { transition-delay: 0.6s; }
.js-loaded [data-animate-delay="4"] { transition-delay: 0.8s; }
.js-loaded [data-animate-delay="5"] { transition-delay: 1s; }
.js-loaded [data-animate-delay="6"] { transition-delay: 1.2s; }

/* 左からカーテンオープン */
.js-loaded [data-animate="reveal-left"] {
  clip-path: inset(0 0 0 100%);
  filter: blur(6px);
}

.js-loaded [data-animate="reveal-left"].is-visible {
  clip-path: inset(0 0 0 0);
  filter: blur(0);
}

/* 3Dパースペクティブで登場 */
.js-loaded [data-animate="perspective"] {
  opacity: 0;
  transform: perspective(1200px) rotateX(20deg) translateY(60px);
  filter: blur(6px);
}

.js-loaded [data-animate="perspective"].is-visible {
  opacity: 1;
  transform: perspective(1200px) rotateX(0) translateY(0);
  filter: blur(0);
}

/* スケール＋ブラー（フォーカスイン） */
.js-loaded [data-animate="focus"] {
  opacity: 0;
  transform: scale(0.95);
  filter: blur(8px);
}

.js-loaded [data-animate="focus"].is-visible {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* ========================================
   キーフレーム - 独自アニメーション
   ======================================== */

/* ヒーロー：ゴールドラインが走りテキストをリビール */
@keyframes heroReveal {
  0% {
    clip-path: inset(0 100% 0 0);
    filter: blur(20px);
    opacity: 0;
  }
  50% {
    filter: blur(8px);
  }
  100% {
    clip-path: inset(0 0 0 0);
    filter: blur(0);
    opacity: 1;
  }
}

/* ヒーロー：テキストに光が走る */
@keyframes textShine {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

/* カード：シャインがスイープ */
@keyframes cardShine {
  0% {
    transform: translateX(-100%) skewX(-15deg);
  }
  100% {
    transform: translateX(200%) skewX(-15deg);
  }
}

/* 背景：微かな光のうねり */
@keyframes ambientGlow {
  0%, 100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

/* ========================================
   ファーストビュー - 映画的な登場
   ======================================== */

.fv {
  position: relative;
  overflow: hidden;
}

.fv::before {
  content: "";
  position: absolute;
  inset: -20%;
  z-index: 1;
  background: radial-gradient(
    ellipse at 50% 50%,
    rgba(6, 199, 85, 0.1) 0%,
    transparent 60%
  );
  animation: ambientGlow 8s ease-in-out infinite;
  pointer-events: none;
}

.fv-content {
  animation: heroReveal 1.8s var(--ease-out-expo) 0.2s both;
}

.fv-main-copy {
  animation: heroReveal 1.5s var(--ease-out-expo) 0.3s both;
}

.fv-sub-copy {
  animation: heroReveal 1.2s var(--ease-out-expo) 0.7s both;
}

/* ========================================
   ヘッダー
   ======================================== */

.header {
  transition: background 0.5s, box-shadow 0.5s;
}

.header.scrolled {
  background: #080808;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.55);
  border-bottom-color: rgba(6, 199, 85, 0.15);
}

.logo {
  transition: transform 0.4s var(--ease-out-quart);
}

.logo:hover {
  transform: scale(1.03);
}

/* ========================================
   カード - 3D＋シャイン
   ======================================== */

.card {
  position: relative;
  perspective: 1000px;
  overflow: hidden;
  transition: transform 0.6s var(--ease-out-expo),
              box-shadow 0.6s var(--ease-out-expo);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transform: translateX(-100%) skewX(-15deg);
  transition: none;
  pointer-events: none;
  z-index: 2;
}

.card:hover {
  transform: translateY(-12px) rotateX(2deg) scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.45),
              0 0 0 1px rgba(6, 199, 85, 0.25);
}

.card:hover::before {
  animation: cardShine 0.8s var(--ease-out-quart);
}

.card-img {
  overflow: hidden;
  transition: transform 0.8s var(--ease-out-expo);
}

.card:hover .card-img {
  transform: scale(1.08);
}

/* ========================================
   ボタン（ポインタがある環境のみホバーで浮き・影）
   ======================================== */

.btn {
  position: relative;
  transition: transform 0.4s var(--ease-out-quart),
              box-shadow 0.4s;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(6, 199, 85, 0.2);
  }

  .btn-line:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(6, 199, 85, 0.4);
  }
}

@media (hover: none) {
  .btn:active {
    transform: scale(0.98);
    transition-duration: 0.12s;
  }
}

/* ========================================
   セクションタイトル - ラインが描かれる
   ======================================== */

.section-title {
  position: relative;
  overflow: hidden;
}

.section-title::after {
  content: "";
  display: block;
  width: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--color-secondary),
    var(--color-accent),
    var(--color-secondary)
  );
  background-size: 200% 100%;
  margin: 20px auto 0;
  transition: width 1.5s var(--ease-out-expo) 0.5s;
}

.js-loaded [data-animate].is-visible .section-title::after,
.js-loaded .section.is-visible .section-title::after {
  width: 80px;
}

/* ========================================
   ブランド - 3Dフリップ風
   ======================================== */

.brand-item {
  transition: all 0.6s var(--ease-out-expo);
  transform-style: preserve-3d;
}

.brand-item:hover {
  transform: scale(1.08) rotateY(5deg);
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4),
              inset 0 1px 0 rgba(6, 199, 85, 0.15);
}

/* ========================================
   買取実績・お客様の声 - シャイン付き
   ======================================== */

.result-item,
.result-card,
.voice-card {
  position: relative;
  overflow: hidden;
  transition: transform 0.6s var(--ease-out-expo),
              box-shadow 0.6s;
}

.result-item::before,
.result-card::before,
.voice-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(6, 199, 85, 0.12),
    transparent
  );
  transition: left 0.6s;
  pointer-events: none;
}

.result-item:hover,
.result-card:hover,
.voice-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.result-item:hover::before,
.result-card:hover::before,
.voice-card:hover::before {
  left: 150%;
}

.result-price {
  transition: color 0.4s, text-shadow 0.4s;
}

.result-item:hover .result-price,
.result-card:hover .result-price {
  color: var(--color-accent);
  text-shadow: 0 0 20px rgba(6, 199, 85, 0.35);
}

/* ========================================
   CTAセクション
   ======================================== */

.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: none;
  animation: none;
  pointer-events: none;
}

/* ========================================
   フッター・ナビリンク
   ======================================== */

.footer-links a,
.nav-list a {
  position: relative;
  transition: color 0.3s;
}

.footer-links a::after,
.nav-list a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  transition: width 0.4s var(--ease-out-quart);
}

.footer-links a:hover::after {
  width: 100%;
}

.nav-list a::after {
  bottom: -4px;
  height: 1px;
  background: var(--color-accent);
}

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

@media (max-width: 768px) {
  .nav-list a::after {
    display: none;
  }
}

/* ========================================
   モバイル：軽量化
   ======================================== */

@media (max-width: 768px) {
  .js-loaded [data-animate] {
    filter: none;
    clip-path: none;
  }

  .card:hover {
    transform: translateY(-6px);
  }

  .card:hover::before {
    animation: none;
  }

  .card:hover .card-img {
    transform: scale(1.03);
  }

  .brand-item:hover {
    transform: scale(1.03);
  }

  .result-item:hover,
  .result-card:hover,
  .voice-card:hover {
    transform: none;
    box-shadow: none;
  }

  .result-item:hover::before,
  .result-card:hover::before,
  .voice-card:hover::before {
    animation: none;
    left: -100%;
  }

  .result-card:hover .result-img img,
  .result-item:hover .result-placeholder img {
    transform: none;
  }
}

/* ========================================
   アクセシビリティ
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js-loaded [data-animate] {
    opacity: 1;
    filter: none;
    clip-path: none;
    transform: none;
  }
}