:root{
  --bg:#0e1115;
  --card:#151922;
  --muted:#8a93a5;
  --text:#e8edf7;
  --accent:#66d7b0;
  --accent-2:#6fb6e6;
  --danger:#ff6b6b;
  --border:#263044;
  --ring:#8bdcc3;
  --ring-alt:#8fc4ee;
  --shadow:0 10px 28px rgba(0,0,0,.28);
  --shadow-soft:0 8px 24px rgba(0,0,0,.22);
}

/* 基本 */
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:"Stick","Noto Sans JP",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  line-height:1.5;-webkit-font-smoothing:antialiased}
.container{max-width:960px;margin:0 auto;padding:0 16px}
img{max-width:100%;display:block}

/* mainvisual */
#mainvisual{padding:48px 0;border-bottom:1px solid var(--border);background:linear-gradient(180deg,rgba(111,182,230,0.12),transparent 55%)}
#mainvisual h1{margin:0;font-size:32px;letter-spacing:0.06em;font-weight:400}
#mainvisual .lead{color:var(--muted);margin:10px 0 18px;font-weight:400}

/* hero media */
.hero-media{max-width:720px;position:relative}
.hero-poster{
  width:100%;
  border-radius:16px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  display:block;
  transition:opacity .45s ease, transform .45s ease;
  will-change:opacity,transform;
}
.hero-video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border-radius:16px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  object-fit:cover;
  display:block;
  opacity:0;
  transform:scale(1.02);
  transition:opacity .45s ease, transform .45s ease;
  pointer-events:auto;
}

/* 動画がアクティブなときのクラス */
.hero-media.playing .hero-video{opacity:1;transform:scale(1)}
.hero-media.playing .hero-poster{opacity:0;transform:scale(.98);pointer-events:none}

/* 再生ボタン（自動再生がブロックされたときに表示） */
.hero-play-btn{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  z-index:6;
  padding:10px 16px;
  border-radius:12px;
  border:1px solid var(--border);
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#0a0e11;
  font-weight:600;
  cursor:pointer;
  box-shadow:0 10px 24px rgba(0,0,0,.35);
  display:none;
}
.hero-play-btn.visible{display:inline-block}

/* 以下は既存のスタイル（省略せずに含めています） */
.section{margin:32px 0}
.section h2{font-size:22px;margin:0 0 14px;letter-spacing:0.02em;font-weight:400}
.uploader{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
#photo{padding:12px;background:var(--card);border:1px solid var(--border);border-radius:12px;color:var(--text);box-shadow:var(--shadow-soft)}
.preview{width:260px;height:auto;border-radius:14px;border:1px solid var(--border);box-shadow:var(--shadow);transition:transform .2s ease, box-shadow .2s ease}
.preview:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,.3)}

.status{margin-top:10px;color:var(--muted)}
.status.loading{color:#cdd6f4}
.status.success{color:var(--accent)}
.status.error{color:var(--danger)}

.manual-input .manual-row{display:flex;gap:10px}
#ingredientInput{flex:1;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--text);box-shadow:var(--shadow-soft)}
#addIngredientBtn{padding:12px 16px;border-radius:12px;border:1px solid var(--border);background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#0a0e11;cursor:pointer;font-weight:400}
#addIngredientBtn:disabled{opacity:.5;cursor:not-allowed}
.tip{color:var(--muted);font-size:13px;margin:8px 0 12px}

.tags{display:flex;gap:10px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;background:#1b2130;border:1px solid var(--border);color:var(--text);border-radius:999px;font-size:14px;font-weight:400;transition:background .2s ease, border-color .2s ease}
.tag:hover{background:#20273a;border-color:#2b3850}
.tag .remove{cursor:pointer;color:var(--muted)}
.tag .remove:hover{color:var(--danger)}
.ghost{margin-top:10px;background:transparent;border:1px dashed var(--border);color:var(--muted);padding:10px 14px;border-radius:12px;cursor:pointer;transition:border-color .2s ease, color .2s ease}
.ghost:hover{border-color:#34507a;color:#a5afc4}

.cuisines{display:flex;gap:10px;flex-wrap:wrap}
.cuisines button{padding:12px 16px;border-radius:12px;border:1px solid var(--border);background:#1b2130;color:var(--text);cursor:pointer;font-weight:400;transition:background .2s ease, transform .1s ease, box-shadow .2s ease;box-shadow:var(--shadow-soft)}
.cuisines button[disabled]{opacity:.5;cursor:not-allowed}
.cuisines button:hover:not([disabled]){background:#20273a;transform:translateY(-1px)}
.cuisines button.active{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#0a0e11;box-shadow:0 12px 28px rgba(102,215,176,.25)}

.results{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}
.results.empty{display:block}
.empty-text{color:var(--muted);padding:16px;border:1px dashed var(--border);border-radius:14px;background:#151922}

.recipe-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);transition:transform .15s ease, box-shadow .2s ease, border-color .2s ease}
.recipe-card:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(0,0,0,.3);border-color:#2b3850}
.recipe-card h4{margin:0;font-size:20px;font-weight:400;letter-spacing:0.02em}
.recipe-meta{display:flex;gap:8px;flex-wrap:wrap}
.badge{font-size:12px;color:#0a0e11;background:var(--accent);border-radius:999px;padding:5px 10px;font-weight:400}
.badge.alt{background:var(--accent-2)}
.recipe-desc{color:#cbd3e6;font-size:14px;line-height:1.65}
.recipe-ingredients{color:#aab3c6;font-size:13px}
.recipe-actions{display:flex;gap:10px;margin-top:auto}
.btn{padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:#1b2130;color:var(--text);cursor:pointer;font-weight:400;transition:background .2s ease, color .2s ease, box-shadow .2s ease, transform .1s ease}
.btn:hover{background:#20273a;transform:translateY(-1px)}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#0a0e11;box-shadow:0 10px 24px rgba(111,182,230,.22)}
.btn.primary:hover{box-shadow:0 12px 30px rgba(111,182,230,.28)}

.footer{margin:34px 0;padding:26px 0;border-top:1px solid var(--border);color:var(--muted);text-align:center}

/* focus */
input:focus, button:focus, .btn:focus, .ghost:focus{outline:2px solid var(--ring);outline-offset:2px}
.cuisines button.active:focus{outline:2px solid var(--ring-alt);outline-offset:2px}

/* responsive */
@media (max-width:640px){
  .hero-media{max-width:100%}
  .hero-poster{border-radius:12px}
  .hero-video{border-radius:12px}
  .preview{width:100%}
  #mainvisual{padding:36px 0}
  #mainvisual h1{font-size:28px}
  .section{margin:28px 0}
}