/* ============================================================
   top.css
   トップページ固有スタイル
   DUCK WORKS Uranai Tools
============================================================ */

/* ============================================================
   Hero
============================================================ */
.hero {
  padding: 28px var(--pad) 40px;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}

/* グロー装飾：ページ右上に固定、コンテンツの背後・背景の前面 */
.hero-glow {
  position: fixed;
  top: 0;
  right: 0;
  width: 671px;
  height: 671px;
  pointer-events: none;
  z-index: -1;
  animation: glowPulse 6s ease-in-out infinite alternate;
}
.hero-glow img {
  width: 100%;
  height: 100%;
  display: block;
}
@keyframes glowPulse {
  from {
    opacity: 0.88;
    transform: scale(1);
  }
  to {
    opacity: 1;
    transform: scale(1.04);
  }
}

/* ヒーロータイトル：Playfair Display / medium */
.hero-title {
  font-family: var(--f-en);
  font-weight: 500;
  font-size: clamp(80px, 14vw, 128px);
  line-height: 0.87;
  letter-spacing: -0.02em;
  color: var(--c-main);
  margin-bottom: 24px;
}

/* サブタイトル：Yu Mincho / Demibold */
.hero-sub {
  font-family: var(--f-mincho);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-main);
  margin-bottom: 16px;
}

/* リードテキスト：Noto Sans JP / 16px */
.hero-lead {
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-main);
}

/* ============================================================
   News バー
============================================================ */
.news-bar {
  padding: 0 var(--pad);
  margin-bottom: 40px;
}
.news-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid var(--c-main);
  border-bottom: 1px solid var(--c-main);
  padding: 12px 0;
}
.news-label {
  font-family: var(--f-en);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.news-date {
  font-size: 16px;
  color: var(--c-main);
  flex-shrink: 0;
}
.news-text {
  font-size: 16px;
}

/* ============================================================
   ツールカード
============================================================ */
.tools-section {
  padding: 0 var(--pad) 64px;
}
.tools-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* 上段3枚 */
.tool-grid-row1 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
/* 下段2枚（左詰め・上段と同幅） */
.tool-grid-row2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.tool-grid-row2 .tool-card:nth-child(1) {
  grid-column: 1;
}
.tool-grid-row2 .tool-card:nth-child(2) {
  grid-column: 2;
}

.tool-card {
  background: transparent;
  border: 1px solid var(--c-main);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition:
    transform var(--ease),
    box-shadow var(--ease);
  opacity: 0;
  animation: fadeUp 0.45s ease forwards;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-h);
}
.tool-card > a {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* カード上部：タイトル・英字（中央揃え） */
.tool-card-head {
  padding: 32px 32px 0;
  text-align: center;
}
.tool-card-title {
  font-family: var(--f-mincho);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #000;
  margin-bottom: 8px;
}
.tool-card-en {
  font-family: var(--f-en);
  font-size: 14px;
  font-weight: 500;
  color: #000;
  letter-spacing: 0.06em;
  margin-bottom: 0;
}

/* 画像エリア */
.tool-card-image {
  width: 100%;
  height: 200px;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 32px;
  overflow: hidden;
}
.tool-card-image img {
  width: auto;
  height: 140px;
  max-height: 140px;
  object-fit: contain;
  transition: transform 0.4s ease;
}
.tool-card:hover .tool-card-image img {
  transform: scale(1.04);
}

/* ルーン文字エリア */
.rune-display {
  font-size: 100px;
  line-height: 140px;
  height: 140px;
  color: var(--c-main);
  font-family: serif;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 本文・ボタン */
.tool-card-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.tool-card-desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-main);
  flex: 1;
  margin-bottom: 24px;
}
/* GOボタン：テキスト中央・矢印右端固定 */
.tool-card-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-main);
  color: var(--c-white);
  padding: 16px 24px;
  font-family: var(--f-en);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 0;
  transition: background var(--ease);
}
.tool-card:hover .tool-card-btn {
  background: var(--c-sub);
}
.btn-arrow {
  position: absolute;
  right: 20px;
  font-size: 16px;
  transition: transform var(--ease);
}
.tool-card:hover .btn-arrow {
  transform: translateX(4px);
}

/* アニメーション遅延 */
.tool-grid-row1 .tool-card:nth-child(1) {
  animation-delay: 0.3s;
}
.tool-grid-row1 .tool-card:nth-child(2) {
  animation-delay: 0.4s;
}
.tool-grid-row1 .tool-card:nth-child(3) {
  animation-delay: 0.5s;
}
.tool-grid-row2 .tool-card:nth-child(1) {
  animation-delay: 0.58s;
}
.tool-grid-row2 .tool-card:nth-child(2) {
  animation-delay: 0.66s;
}

/* ============================================================
   DUCK WORKSを楽しむコンテンツ（バナーセクション）
============================================================ */
.banner-section {
  padding: 56px var(--pad) 72px;
  border-top: 2px solid var(--c-main);
}
.banner-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.banner-title {
  font-family: var(--f-mincho);
  font-size: 36px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #000;
  text-align: center;
  margin-bottom: 32px;
}
.banner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* バナーカード：白背景・ボーダーなし */
.banner-card {
  background: var(--c-white);
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  transition:
    transform var(--ease),
    box-shadow var(--ease);
}
.banner-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-h);
}
.banner-card > a {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.banner-card-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 32px 0;
}
.banner-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.banner-card:hover .banner-card-img img {
  transform: scale(1.04);
}

.banner-card-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.banner-card-title {
  font-family: var(--f-mincho);
  font-size: 26px;
  font-weight: 600;
  color: #000;
  margin-bottom: 8px;
}
.banner-card-desc {
  font-size: 16px;
  line-height: 1.6;
  color: #000;
  flex: 1;
  margin-bottom: 16px;
}
.banner-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--c-main);
  color: var(--c-white);
  padding: 16px;
  font-family: var(--f-en);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 0;
  transition: background var(--ease);
}
.banner-card:hover .banner-card-btn {
  background: var(--c-sub);
}
.ext-icon {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ============================================================
   Responsive（トップページ固有）
============================================================ */
@media (max-width: 800px) {
  .hero {
    padding: 24px var(--pad) 32px;
  }
  .hero-title {
    font-size: clamp(60px, 16vw, 92px);
  }
  .hero-glow {
    width: 272px;
    height: 272px;
  }

  .tool-grid-row1,
  .tool-grid-row2 {
    grid-template-columns: 1fr;
  }
  .tool-grid-row2 .tool-card:nth-child(1),
  .tool-grid-row2 .tool-card:nth-child(2) {
    grid-column: auto;
  }

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