/* ========================================
   Hitasur@ - Achievement Detail Component
   実績詳細ページ用コンポーネント
======================================== */

/* ========================================
   ページ全体の横スクロール防止
======================================== */
html,
body {
  overflow-x: hidden;
}

/* ========================================
   ヒーローセクション
   グラスモーフィズムカード + レスポンシブ背景画像
======================================== */
.achievement-hero {
  position: relative;
  width: 100%;
  height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-black);
  padding: 0;
  margin: 0;
}

/* 背景画像レイヤー */
.achievement-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.achievement-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  opacity: 0.9;
  transition: transform 2s ease;
}

.achievement-hero:hover .achievement-hero-image {
  transform: scale(1.05);
}

/* ブラーオーバーレイ */
.achievement-hero-blur-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* グラスモーフィズムカード */
.achievement-hero-card {
  position: relative;
  z-index: 10;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
  max-width: 56rem; /* 896px */
  width: 90%;
  padding: 3rem; /* 48px - SP */
  text-align: center;
}

@media (min-width: 769px) {
  .achievement-hero-card {
    padding: 4rem; /* 64px - PC */
  }
}

/* カード内テキストスタイル */
.achievement-hero-card .achievement-category {
  font-size: 0.75rem; /* 12px */
  font-weight: 400; /* 500から変更 - フォント軽量化 */
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 1.5rem; /* 24px */
}

.achievement-hero-card .achievement-title {
  font-size: clamp(1.5rem, 4vw, 3rem); /* 24px〜48px */
  font-weight: 200;
  line-height: var(--lh-heading);
  color: var(--color-black);
  margin-bottom: 1.5rem; /* 24px */
  text-shadow: none;
}

.achievement-hero-line {
  width: 3rem; /* 48px */
  height: 1px;
  background: var(--color-black);
  margin: 0 auto 1.5rem; /* 24px */
}

.achievement-hero-card .achievement-subtitle {
  font-size: clamp(0.875rem, 1.5vw, 1rem); /* 14px〜16px */
  font-weight: 300;
  color: var(--color-text-light);
  max-width: 100%;
  line-height: var(--lh-body);
}

/* fade-upアニメーション */
.achievement-hero-card.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out forwards;
  animation-delay: 0.3s;
}

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

/* ========================================
   プロジェクト情報セクション
======================================== */
.achievement-info {
  padding: 4rem 1.5rem; /* 64px - 8ptグリッド準拠 */
  background: #f9f9f9;
}

.achievement-info-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem; /* 64px */
}

.achievement-info-sidebar h3 {
  font-size: 0.75rem; /* 12px */
  letter-spacing: 2px;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 1rem; /* 16px */
}

.achievement-info-item {
  margin-bottom: 1.5rem; /* 24px */
}

.achievement-info-label {
  font-size: 0.75rem; /* 12px */
  color: var(--color-text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 0.25rem; /* 4px */
}

.achievement-info-value {
  font-size: 1rem; /* 16px */
  color: var(--color-text);
  line-height: var(--lh-body);
}

.achievement-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem; /* 8px */
  margin-top: 0.25rem; /* 4px */
}

.achievement-tech-tag {
  padding: 0.25rem 0.75rem; /* 4px 12px */
  background: var(--color-black);
  color: var(--color-white);
  font-size: 0.75rem; /* 12px */
  letter-spacing: 0.5px;
  border-radius: 20px;
}

.achievement-description h2 {
  font-size: clamp(1.5rem, 4vw, 2rem); /* 24px〜32px */
  font-weight: 100;
  letter-spacing: 1px;
  margin-bottom: 1.5rem; /* 24px */
  line-height: var(--lh-heading);
}

.achievement-description p {
  font-size: 1rem; /* 16px */
  line-height: var(--lh-body);
  color: var(--color-text-light);
  margin-bottom: 1rem; /* 16px */
}

/* ========================================
   デザインポイントセクション
======================================== */
.achievement-design-points {
  padding: 4rem 1.5rem; /* 64px - 8ptグリッド準拠 */
  background: var(--color-white);
}

.achievement-section-header {
  text-align: center;
  margin-bottom: 3rem; /* 48px - 8ptグリッド準拠 */
}

.achievement-section-title {
  font-size: 0.75rem; /* 12px */
  letter-spacing: 2px;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 0.5rem; /* 8px */
}

.achievement-section-heading {
  font-size: clamp(1.5rem, 4vw, 2rem); /* 24px〜32px - 8ptグリッド準拠 */
  font-weight: 100;
  letter-spacing: 1px;
  line-height: var(--lh-heading);
}

.achievement-points-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem; /* 24px */
}

.achievement-point-card {
  text-align: left;
  padding: 1.5rem 1rem; /* 24px 16px */
  border: 1px solid #e5e5e5;
  transition: var(--transition-base);
  cursor: pointer;
}

.achievement-point-card:hover {
  border-color: var(--color-black);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.achievement-point-icon {
  width: 4rem; /* 64px */
  height: 4rem; /* 64px */
  margin: 0 auto 1rem; /* 16px */
  border: 2px solid var(--color-black);
  border-radius: var(--radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem; /* 24px */
  color: var(--color-text); /* #333 */
}

.achievement-point-title {
  font-size: 1.125rem; /* 18px */
  font-weight: 300;
  margin-bottom: 0.5rem; /* 8px */
  min-height: 4.5rem;
  line-height: var(--lh-heading);
  color: var(--color-text); /* #333 */
}

.achievement-point-description {
  font-size: 1rem; /* 16px - 本文は16pxがデフォルト */
  color: var(--color-text); /* #333 */
  line-height: var(--lh-body);
}

/* ========================================
   スクリーンショット3Dカルーセル
======================================== */
.achievement-screenshots {
  padding: 4rem 1.5rem; /* 64px - 8ptグリッド準拠 */
  background: #f9f9f9;
}

.achievement-screenshots .achievement-section-header {
  margin-bottom: var(--spacing-xs);
}

.achievement-screenshots .achievement-section-title {
  margin-bottom: 4px;
}

.achievement-screenshots .achievement-section-heading {
  margin-bottom: var(--spacing-xs);
}

.screenshot-carousel {
  width: 100%;
  max-width: 1400px;
  height: clamp(320px, 55vw, 520px);
  margin: 0 auto;
  padding-bottom: 80px;
  position: relative;
  perspective: 1200px;
  overflow: visible;
  touch-action: pan-y;
}

.screenshot-track {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.screenshot-item {
  position: absolute;
  width: clamp(240px, 45vw, 560px);
  aspect-ratio: 16 / 10;
  left: 50%;
  top: 45%;
  transform-style: preserve-3d;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.screenshot-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  box-shadow: 0 16px 48px rgba(0,0,0,0.25);
}

/* ホバー/タップガイド */
.screenshot-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.screenshot-item-overlay span {
  color: var(--color-white);
  font-size: var(--fs-sm);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.screenshot-item-overlay svg {
  width: 20px;
  height: 20px;
  fill: var(--color-white);
}

.screenshot-item.active:hover .screenshot-item-overlay {
  opacity: 1;
}

.screenshot-item-overlay.show-once {
  opacity: 1;
}

/* キャプション */
.screenshot-item-caption {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding-top: var(--spacing-sm);
  text-align: center;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.screenshot-item-caption h4 {
  font-size: var(--fs-base);
  font-weight: 700; /* 500から変更 - フォント軽量化 */
  margin-bottom: 4px;
  color: var(--color-text);
}

.screenshot-item-caption p {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

.screenshot-item.active .screenshot-item-caption {
  opacity: 1;
}

/* ナビゲーションボタン */
.screenshot-nav-btn {
  position: absolute;
  top: 45%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  max-width: 48px;
  max-height: 48px;
  padding: 0;
  margin: 0;
  border: none;
  background: rgba(0, 0, 0, 0.15);
  cursor: pointer;
  font-size: var(--fs-base);
  line-height: 1;
  color: var(--color-text);
  border-radius: 50%;
  transition: all 0.3s ease;
  z-index: 100;
  backdrop-filter: blur(4px);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-nav-btn:hover {
  background: rgba(0, 0, 0, 0.4);
  color: var(--color-white);
}

.screenshot-prev {
  left: var(--spacing-sm);
}

.screenshot-next {
  right: var(--spacing-sm);
}

/* ドットインジケーター */
.screenshot-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xl);
}

.screenshot-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cccccc;
  cursor: pointer;
  transition: all 0.3s ease;
}

.screenshot-dot.active {
  background: var(--color-black);
  transform: scale(1.25);
}

/* レスポンシブ：タブレット */
@media (max-width: 768px) {
  .screenshot-carousel {
    padding-bottom: 72px;
  }
  
  .screenshot-nav-btn {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    max-width: 40px;
    max-height: 40px;
  }
  
  .screenshot-prev {
    left: var(--spacing-xs);
  }
  
  .screenshot-next {
    right: var(--spacing-xs);
  }
  
  .screenshot-dots {
    margin-top: var(--spacing-md);
  }
  
  .screenshot-item-overlay span::before {
    content: "タップで拡大";
  }
}

/* レスポンシブ：スマホ */
@media (max-width: 480px) {
  .screenshot-carousel {
    padding-bottom: 64px;
  }
  
  .screenshot-nav-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    max-width: 36px;
    max-height: 36px;
    font-size: var(--fs-sm);
  }
  
  .screenshot-dots {
    margin-top: var(--spacing-sm);
  }
}

/* レスポンシブ：小型スマホ */
@media (max-width: 360px) {
  .screenshot-carousel {
    padding-bottom: 56px;
  }
  
  .screenshot-nav-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    max-width: 32px;
    max-height: 32px;
  }
}

/* PC: ホバーガイド */
@media (min-width: 769px) {
  .screenshot-item-overlay span::before {
    content: "Click to expand";
  }
}

/* ========================================
   モーダル
======================================== */
.achievement-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
  align-items: center;
  justify-content: center;
}

.achievement-modal.active {
  display: flex;
}

.achievement-modal-content {
  max-width: 90%;
  max-height: 90%;
  position: relative;
}

.achievement-modal-content img {
  width: 100%;
  height: auto;
  max-height: 85vh;
  object-fit: contain;
}

.achievement-modal-caption {
  text-align: center;
  color: var(--color-white);
  margin-top: var(--spacing-sm);
}

.achievement-modal-caption h4 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-white);
}

.achievement-modal-caption p {
  font-size: var(--fs-sm);
  color: var(--color-white);
}

.achievement-modal-close {
  position: absolute;
  top: 20px;
  right: 40px;
  color: var(--color-white);
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 10000;
}

.achievement-modal-close:hover {
  color: #ccc;
}

/* ========================================
   成果セクション
======================================== */
.achievement-results {
  padding: 4rem 1.5rem; /* 64px - 8ptグリッド準拠 */
  background: var(--color-black);
  color: var(--color-white);
}

.achievement-results-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem; /* 24px */
  text-align: center;
}

.achievement-result-item {
  padding: 1.5rem 1rem; /* 24px 16px */
  border: 1px solid #333;
}

.achievement-result-number {
  font-size: 3rem; /* 48px */
  font-weight: 100;
  margin-bottom: 0.5rem; /* 8px */
  display: flex;
  align-items: baseline;
  justify-content: center;
  line-height: 1;
}

.result-number {
  font-size: inherit;
}

.result-unit {
  font-size: 1.125rem; /* 18px */
  margin-left: 2px;
}

.achievement-result-label {
  font-size: 0.75rem; /* 12px */
  color: var(--color-white);
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: var(--lh-body);
}

/* ========================================
   CTAセクション
======================================== */
.achievement-cta {
  padding: 4rem 1.5rem; /* 64px - 8ptグリッド準拠 */
  text-align: center;
  background: var(--color-white);
}

.achievement-cta-title {
  font-size: clamp(1.5rem, 4vw, 2rem); /* 24px〜32px */
  font-weight: 100;
  letter-spacing: 1px;
  margin-bottom: 1rem; /* 16px */
  line-height: var(--lh-heading);
}

.achievement-cta-subtitle {
  font-size: 1rem; /* 16px */
  color: var(--color-text-light);
  margin-bottom: 2rem; /* 32px */
  line-height: var(--lh-body);
}

.achievement-cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem; /* 16px */
}

.achievement-cta-buttons .cta-button {
  margin-bottom: 0;
}

.achievement-cta-buttons .link-button--light {
  height: auto;
  align-self: center;
}

.achievement-cta-button {
  padding: 0.75rem 1.5rem; /* 12px 24px */
  text-decoration: none;
  font-size: 0.875rem; /* 14px */
  letter-spacing: 1px;
  transition: var(--transition-base);
  display: inline-block;
}

.achievement-cta-primary {
  background: var(--color-black);
  color: var(--color-white);
}

.achievement-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.achievement-cta-secondary {
  border: 1px solid var(--color-black);
  color: var(--color-black);
}

.achievement-cta-secondary:hover {
  background: var(--color-black);
  color: var(--color-white);
}

/* 実績ナビゲーション（前後の実績へ） */
.achievement-cta-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem; /* 16px */
  margin-top: 0;
}

.achievement-cta-nav-prev,
.achievement-cta-nav-next {
  padding: 0.75rem 1.5rem; /* 12px 24px */
  text-decoration: none;
  font-size: 0.875rem; /* 14px */
  letter-spacing: 1px;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem; /* 8px */
  border: 1px solid var(--color-black);
  color: var(--color-black);
  background: transparent;
  white-space: nowrap;
}

.achievement-cta-nav-prev:hover,
.achievement-cta-nav-next:hover {
  background: var(--color-black);
  color: var(--color-white);
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 768px) {
  .achievement-info-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem; /* 24px */
  }
  
  .achievement-points-grid {
    grid-template-columns: 1fr;
    gap: 1rem; /* 16px - SPは狭く */
  }
  
  .achievement-results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .achievement-cta-buttons {
    flex-direction: column;
  }
  
  .achievement-cta-nav {
    flex-direction: column;
    gap: 0.75rem; /* 12px */
  }
  
  .achievement-info,
  .achievement-design-points,
  .achievement-screenshots,
  .achievement-results,
  .achievement-cta {
    padding: 3rem 1rem; /* 48px - 8ptグリッド準拠 */
  }
  
  .achievement-section-header {
    margin-bottom: 2rem; /* 32px - SPは狭く */
  }
}

@media (max-width: 480px) {
  /* ヒーローカード調整 */
  .achievement-hero-card {
    padding: 2rem; /* 32px */
  }
  
  .achievement-hero-card .achievement-category {
    font-size: 10px;
    margin-bottom: 1rem;
  }
  
  .achievement-hero-card .achievement-title {
    font-size: clamp(1.25rem, 5vw, 1.5rem); /* 20px〜24px */
    margin-bottom: 1rem;
  }
  
  .achievement-hero-line {
    margin-bottom: 1rem;
  }
  
  .achievement-hero-card .achievement-subtitle {
    font-size: 0.875rem; /* 14px */
  }
}

@media (max-width: 360px) {
  .achievement-hero-card .achievement-title {
    font-size: clamp(1.125rem, 5vw, 1.25rem); /* 18px〜20px */
  }
}