/* ============================================================
   portfolio-new.css — Portfolio ページ専用スタイル（新デザイン）
   design-kit.css / style-new.css のトークンを使って
   現行 portfolio.css の .pf-* を見た目だけ刷新
   ============================================================ */

/* === ナビ：現在ページ表示 === */
.nav-portfolio-active {
  color: var(--leaf-deep) !important;
  font-weight: 500;
}
.nav-portfolio-active::after {
  transform: scaleX(1) !important;
}

/* === ヒーロー === */
.pf-hero {
  position: relative;
  padding: 130px 0 100px;
  overflow: hidden;
  background: var(--paper);
}

.pf-hero-inner {
  max-width: 640px;
  text-align: center;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.pf-hero-label {
  display: block;
  font-family: var(--script);
  font-size: 32px;
  color: var(--leaf-deep);
  line-height: 1;
  margin: 8px 0 20px;
  text-align: center;
}

.pf-hero-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.35;
  letter-spacing: .04em;
  color: var(--ink);
  margin: 0 0 40px;
}

/* 詩的テキストブロック */
.pf-hero-poem {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 28px 36px;
  border: 1px solid color-mix(in oklab, var(--stone) 30%, transparent);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--cream) 60%, transparent);
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}

/* コーナー装飾 */
.pf-hero-poem::before,
.pf-hero-poem::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--leaf);
  border-style: solid;
}
.pf-hero-poem::before {
  top: -1px; left: -1px;
  border-width: 2px 0 0 2px;
  border-radius: 2px 0 0 0;
}
.pf-hero-poem::after {
  bottom: -1px; right: -1px;
  border-width: 0 2px 2px 0;
  border-radius: 0 0 2px 0;
}

.pf-poem-line {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 2.2;
  margin: 0;
  letter-spacing: .04em;
}

.pf-poem-accent {
  font-family: var(--display);
  font-style: italic;
  font-size: 16px;
  font-weight: 400;
  color: var(--leaf-deep);
  letter-spacing: .2em;
  margin: 16px 0;
}

.pf-poem-sub {
  font-size: 12.5px;
  color: var(--stone-deep);
  letter-spacing: .06em;
  line-height: 1.8;
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed color-mix(in oklab, var(--stone) 30%, transparent);
  width: 100%;
  text-align: center;
}

/* === 作品グリッドセクション === */
.pf-section {
  padding: 64px 0 80px;
}

.pf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  grid-auto-flow: dense;
}

/* 強弱（ワイドカード）でモザイク感を出す */
.pf-card.feature { grid-column: span 2; }

/* 実績スタッツ（ダイナミックな数字表示） */
.pf-stats-note {
  text-align: center; margin: 0 0 48px; padding-bottom: 32px;
  border-bottom: 1px solid color-mix(in oklab, var(--stone) 18%, transparent);
}
.pf-note-pill {
  display: inline-block;
  background: color-mix(in oklab, var(--leaf-soft) 36%, var(--paper));
  color: var(--leaf-deep);
  border: 1px solid color-mix(in oklab, var(--leaf) 30%, transparent);
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 13.5px; font-weight: 500; letter-spacing: .03em; line-height: 1.8;
}
@media (max-width: 620px) {
  .pf-note-pill { border-radius: 16px; }
}

/* 順次フェードイン（波打ち）— pf-card は transition を切って animation に置換 */
.pf-grid .pf-card[data-reveal] { transition: none; }
.pf-grid .pf-card[data-reveal].visible { animation: pfRise .7s cubic-bezier(.2,.7,.2,1) both; }
@keyframes pfRise { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
.pf-grid .pf-card:nth-child(2).visible { animation-delay: .06s; }
.pf-grid .pf-card:nth-child(3).visible { animation-delay: .12s; }
.pf-grid .pf-card:nth-child(4).visible { animation-delay: .18s; }
.pf-grid .pf-card:nth-child(5).visible { animation-delay: .24s; }
.pf-grid .pf-card:nth-child(6).visible { animation-delay: .30s; }
.pf-grid .pf-card:nth-child(7).visible { animation-delay: .36s; }
.pf-grid .pf-card:nth-child(8).visible { animation-delay: .42s; }

/* === フリップカード === */
.pf-card {
  perspective: 1200px;
  height: 400px;
  cursor: pointer;
}
.pf-card:focus-visible {
  outline: 3px solid var(--leaf-deep);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.pf-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.pf-card.flipped .pf-card-inner {
  transform: rotateY(180deg);
}

.pf-card-front,
.pf-card-back {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* 表面 */
.pf-card-front {
  background: var(--paper);
  display: flex;
  flex-direction: column;
  border: 1px solid color-mix(in oklab, var(--stone) 22%, transparent);
  transition: box-shadow .3s, transform .3s;
}

.pf-card:hover .pf-card-front {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.pf-card.flipped .pf-card-front {
  transform: none;
}

.pf-card-img {
  width: 100%;
  flex: 1;
  object-fit: cover;
  object-position: top;
  display: block;
  min-height: 0;
}

.pf-card-front-info {
  padding: 14px 16px 12px;
  border-top: 3px solid color-mix(in oklab, var(--leaf) 35%, transparent);
  flex-shrink: 0;
  background: var(--paper);
}

/* バッジ */
.pf-badge {
  display: inline-block;
  font-family: var(--display);
  font-style: italic;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .12em;
  padding: 3px 11px;
  border-radius: 999px;
  margin-bottom: 6px;
}

.pf-badge--irodori {
  background: color-mix(in oklab, var(--leaf) 18%, transparent);
  color: var(--leaf-deep);
  border: 1px solid color-mix(in oklab, var(--leaf) 30%, transparent);
}

.pf-badge--knade {
  background: color-mix(in oklab, var(--stone) 20%, transparent);
  color: var(--stone-deep);
  border: 1px solid color-mix(in oklab, var(--stone) 38%, transparent);
}

.pf-badge--back {
  background: color-mix(in oklab, var(--paper) 8%, transparent);
  color: var(--paper);
  border: 1px solid color-mix(in oklab, var(--paper) 45%, transparent);
}

.pf-card-title {
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.55;
  margin: 0;
  letter-spacing: .02em;
}

.pf-card-hint {
  font-family: var(--display);
  font-style: italic;
  font-size: 12px;
  color: var(--stone);
  margin: 5px 0 0;
}

/* 裏面（白系文字がWCAG AAを満たすよう、全体を暗めのトーンに） */
.pf-card-back {
  background: linear-gradient(145deg, color-mix(in oklab, var(--leaf-deep) 78%, var(--ink)) 0%, color-mix(in oklab, var(--leaf-deep) 55%, var(--ink)) 100%);
  transform: rotateY(180deg);
}

.pf-card-back--knade {
  background: linear-gradient(145deg, var(--ink-soft) 0%, color-mix(in oklab, var(--stone-deep) 40%, var(--ink)) 100%);
}

.pf-card-back-inner {
  padding: 20px 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 7px;
  justify-content: flex-start;
  box-sizing: border-box;
}

.pf-card-back-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 500;
  color: var(--paper);
  line-height: 1.55;
  margin: 0;
  letter-spacing: .02em;
}

.pf-card-comment {
  font-size: 12.5px;
  color: color-mix(in oklab, var(--paper) 90%, transparent);
  line-height: 1.75;
  margin: 0;
  flex: 1;
  min-height: 0;
  overflow-y: auto;              /* 長文はここだけスクロール（仕様・ボタンは常に表示） */
  overscroll-behavior: contain;
  padding-right: 6px;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--paper) 45%, transparent) transparent;
}
.pf-card-comment::-webkit-scrollbar { width: 5px; }
.pf-card-comment::-webkit-scrollbar-thumb { background: color-mix(in oklab, var(--paper) 45%, transparent); border-radius: 999px; }

.pf-card-spec {
  font-family: var(--display);
  font-style: italic;
  font-size: 12px;
  color: color-mix(in oklab, var(--paper) 90%, transparent);
  letter-spacing: .08em;
  margin: 0;
}

/* 全体を見るボタン（タップターゲット44px確保） */
.pf-view-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: auto;
  padding: 10px 20px;
  background: color-mix(in oklab, var(--paper) 10%, transparent);
  color: var(--paper);
  border: 1px solid color-mix(in oklab, var(--paper) 45%, transparent);
  border-radius: 999px;
  font-size: 12.5px;
  font-family: var(--sans);
  cursor: pointer;
  transition: background .2s, border-color .2s;
  align-self: flex-start;
  letter-spacing: .04em;
}

.pf-view-btn:hover {
  background: color-mix(in oklab, var(--paper) 18%, transparent);
  border-color: color-mix(in oklab, var(--paper) 70%, transparent);
}

/* 動画カード：プレイアイコン */
.pf-card-front--video {
  border-color: color-mix(in oklab, var(--stone) 35%, transparent);
}

.pf-card-front--video .pf-card-front-info {
  border-top-color: color-mix(in oklab, var(--stone) 40%, transparent);
}

.pf-card-thumb-wrap {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
}

.pf-card-thumb-wrap .pf-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.pf-play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklab, var(--ink) 28%, transparent);
  color: var(--paper);
  font-size: 2rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  transition: background .25s;
  pointer-events: none;
}

.pf-card:hover .pf-play-icon {
  background: color-mix(in oklab, var(--ink) 40%, transparent);
}

/* === モーダル === */
.pf-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

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

.pf-modal-overlay {
  position: absolute;
  inset: 0;
  background: color-mix(in oklab, var(--ink) 78%, transparent);
  backdrop-filter: blur(4px);
}

.pf-modal-content {
  position: relative;
  z-index: 1;
  background: var(--paper);
  border-radius: var(--radius);
  padding: 36px 32px 32px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  width: 700px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-md);
  border: 1px solid color-mix(in oklab, var(--stone) 18%, transparent);
}

.pf-modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--cream-2);
  border: 1px solid color-mix(in oklab, var(--stone) 20%, transparent);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background .2s, color .2s;
  line-height: 1;
}

.pf-modal-close:hover {
  background: var(--cream);
  color: var(--ink);
}

.pf-modal-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  padding-right: 40px;
  margin: 0;
  letter-spacing: .03em;
}

.pf-modal-images {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pf-modal-img {
  width: 100%;
  border-radius: 10px;
  display: block;
  box-shadow: var(--shadow-sm);
}

/* モーダル 動画（16:9） */
.pf-modal-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  overflow: hidden;
}

.pf-modal-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* モーダル Canva冊子（A4縦比率） */
.pf-modal-canva {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  aspect-ratio: 1 / 1.4142;
}

.pf-modal-canva iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
}

/* === 戻るリンク === */
.pf-back {
  text-align: center;
  padding: 0 0 72px;
}

/* === レスポンシブ === */
@media (max-width: 1100px) {
  .pf-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .pf-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pf-hero {
    padding: 100px 0 80px;
  }
}

@media (max-width: 640px) {
  .pf-hero-title {
    font-size: clamp(26px, 7vw, 38px);
  }

  .pf-hero-poem {
    padding: 20px 18px;
  }

  .pf-poem-line,
  .pf-poem-sub {
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  .pf-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .pf-card.feature { grid-column: auto; }
  .pf-stat-num { font-size: 36px; }

  .pf-card {
    height: 380px;
  }

  .pf-modal-content {
    padding: 28px 20px 24px;
  }
}

/* コトノハ（ライティング）バッジ */
.pf-badge--cotonoha {
  background: color-mix(in oklab, var(--accent) 13%, transparent);
  color: color-mix(in oklab, var(--accent) 68%, var(--ink));
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
}
.pf-badge + .pf-badge { margin-left: 6px; }

/* その他の実績 */
.pf-others { text-align: center; margin: 44px auto 0; font-size: 13.5px; color: var(--ink-soft); line-height: 2; }
.pf-others-label { display: block; font-family: var(--serif); font-weight: 700; font-size: 15px; color: var(--ink); margin-bottom: 4px; }

/* カード内は幅が狭く、文節改行(auto-phrase)だと行末が不揃い・区切り誤りが
   目立つため通常の折り返しに戻す */
.pf-card-title, .pf-card-back-title, .pf-card-comment, .pf-card-spec, .pf-card-hint {
  word-break: normal;
}

/* 作品の絞り込みフィルタ（タップターゲット44px確保） */
.pf-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: -14px 0 40px; }
.pf-filter-btn {
  font-family: var(--sans); font-size: 12.5px; letter-spacing: .03em;
  min-height: 44px;
  padding: 12px 18px; border-radius: 999px; cursor: pointer;
  background: var(--paper); color: var(--ink-soft);
  border: 1px solid color-mix(in oklab, var(--stone) 28%, transparent);
  transition: all .2s;
}
.pf-filter-btn:hover { border-color: var(--leaf); color: var(--leaf-deep); }
.pf-filter-btn.active { background: var(--leaf-deep); border-color: var(--leaf-deep); color: var(--paper); }

/* PC(ホバー環境)ではマウスを乗せるだけでめくれる（気づきやすさ向上） */
@media (hover: hover) and (pointer: fine) {
  .pf-card:not(.flipped):hover .pf-card-inner { transform: rotateY(180deg); }
}

/* === 動きを減らす設定への対応 === */
@media (prefers-reduced-motion: reduce) {
  .pf-grid .pf-card[data-reveal],
  .pf-grid .pf-card[data-reveal].visible {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .pf-card-inner {
    transition-duration: 0.01s;
  }
  .pf-card-front {
    transition: none;
  }
  .pf-card:hover .pf-card-front {
    transform: none;
  }
}