:root {
  --bg:#f3f7f4;
  --card:#ffffff;
  --ink:#2f3b2f;
  --muted:#5f6f61;
  --primary:#71bf7a;
  --primary-700:#4da562;
  --accent:#bfe5c4;
  --danger:#e57373;
  --ring:#cfead3;
  --shadow:0 10px 30px rgba(77,165,98,.15);
  --radius:16px;
}

* { box-sizing:border-box }
html,body{ height:100% }
body {
  margin:0;
  font-family:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color:var(--ink);
  background:
    radial-gradient(900px 600px at -10% -10%, #e7f2ea, transparent 60%),
    radial-gradient(900px 600px at 110% 0%, #eaf6ee, transparent 55%),
    var(--bg);
}

.container {
  max-width:920px;
  margin:0 auto;
  padding:28px 16px 40px;
  display:grid;
  gap:18px;
}

.header h1 { margin:0 0 6px 0; font-size:1.8rem }
.subtitle { margin:0; color:var(--muted) }

.panel {
  background:var(--card);
  border:1px solid #e4efe6;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
  display:grid;
  gap:12px;
}

.controls {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 12px;
}

.btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid transparent;
  background:#eef7f0;
  color:var(--ink);
  cursor:pointer;
  transition:transform .06s ease, filter .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform:translateY(-1px) }
.btn:active { transform:translateY(0) }
.btn:disabled { opacity:.6; cursor:not-allowed }
.btn:focus { outline:2px solid var(--ring); outline-offset:2px }

.btn.primary { background:var(--primary); color:#fff; box-shadow:0 6px 16px rgba(77,165,98,.28) }
.btn.ghost { background:#fff; border-color:#dfe9e2 }
.btn.danger { background:#fff; border-color:#ffd6d6; color:#b23b3b }

.format {
  display:flex;
  align-items:center;
  gap:6px;
}

.fmt-label {
  font-size:.9rem;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:6px;
}

.fmt-select {
  height:38px;
  padding:0 10px;
  border:1px solid #dfe9e2;
  border-radius:8px;
  font-size:.95rem;
}

.timer {
  font-weight:700;
  letter-spacing:.5px;
  padding:8px 12px;
  border-radius:8px;
  background:#f3fbf5;
  border:1px solid #e3efe6;
  color:#2f5d50;
}

.visual {
  background:linear-gradient(180deg,#f7fbf8,#ffffff);
  border:1px solid #e8f1eb;
  border-radius:12px;
  padding:10px;
}

#wave { width:100%; height:160px; display:block }

.hint { margin:0; color:#7c8b80; font-size:.9rem }

.list {
  background:var(--card);
  border:1px solid #e4efe6;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
}
.list-title { margin:0 0 10px 0;
  font-size:1.1rem;
  display:flex;
  gap:8px;
  align-items:center
}

.clips {
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}

.clip {
  display:grid;
  grid-template-columns:1fr auto auto auto;
  gap:10px;
  align-items:center;
  padding:12px;
  border:1px solid #e6efe8;
  border-radius:12px;
  background:#fcfffd;
}

.clip audio { width:100% }

.badge {
  font-size:.82rem;
  color:#2f5d50;
  background:#eaf6ee;
  padding:4px 8px;
  border-radius:999px;
  border:1px solid #d9ece1;
}

.icon-btn {
  width:36px; height:36px;
  display:inline-grid; place-items:center;
  border-radius:10px; border:1px solid #dfe9e2;
  background:#fff; color:#2f5d50; cursor:pointer;
}
.icon-btn:hover { filter:brightness(.95) }
.icon-btn.danger { border-color:#ffd6d6; color:#b23b3b }

@media (max-width:600px) {
  .controls{flex-direction:column; align-items:flex-start;}
  .format{width:100%;}
  .timer{align-self:flex-start; margin-top:6px;}
}