:root{
  --bg:#12141a;
  --surface:#1a1d26;
  --surface-2:#20242f;
  --line:#2a2e3a;
  --text:#edeef2;
  --text-dim:#8b90a0;
  --amber:#e8a33d;
  --amber-dim:#7a5a28;
  --teal:#3fd6c0;
  --red:#e2584a;
  --radius:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at 15% 0%, rgba(63,214,192,.06), transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(232,163,61,.05), transparent 40%),
    var(--bg);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.55;
}

@media (prefers-reduced-motion: reduce){ *{animation:none !important; transition:none !important;} }

.wrap{max-width:1000px; margin:0 auto; padding:0 24px;}

/* HEADER */
.site-head{border-bottom:1px solid var(--line); padding:22px 0 0; background:var(--surface);}
.head-row{display:flex; align-items:baseline; justify-content:space-between; flex-wrap:wrap; gap:8px; padding-bottom:18px;}
.brand{display:flex; align-items:center; gap:10px;}
.brand-mark{
  font-family:'Space Grotesk', sans-serif;
  background:linear-gradient(135deg, var(--teal), var(--amber));
  color:#10121a;
  font-weight:700;
  padding:6px 10px;
  border-radius:6px;
  font-size:1rem;
  letter-spacing:.02em;
}
.brand-name{font-family:'Space Grotesk', sans-serif; font-weight:700; font-size:1.3rem;}
.tagline{margin:0; font-size:.92rem; color:var(--text-dim);}

/* PIPELINE TRACKER */
.pipeline{
  list-style:none; margin:0; padding:0 0 18px;
  display:flex; gap:0;
}
.pipe-step{
  display:flex; align-items:center; gap:8px;
  font-size:.85rem; font-weight:600; color:var(--text-dim);
  padding-right:28px; position:relative;
}
.pipe-step:not(:last-child)::after{
  content:''; position:absolute; right:6px; top:50%; width:16px; height:1px;
  background:var(--line);
}
.pipe-dot{
  width:22px; height:22px; border-radius:50%;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  font-size:.75rem; color:var(--text-dim);
  font-family:'Space Grotesk', sans-serif;
}
.pipe-step.active{color:var(--text);}
.pipe-step.active .pipe-dot{background:var(--teal); border-color:var(--teal); color:#10121a;}
.pipe-step.done .pipe-dot{background:transparent; border-color:var(--teal); color:var(--teal);}

/* STAGES */
.stage{display:none; padding:40px 0 60px;}
.stage.active{display:block; animation:fadein .3s ease;}
@keyframes fadein{from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:none;}}

.stage-title{font-family:'Space Grotesk', sans-serif; font-weight:700; font-size:1.7rem; margin:0 0 6px;}
.stage-sub{margin:0 0 28px; color:var(--text-dim); max-width:62ch;}

/* INPUT STAGE */
.input-grid{display:grid; grid-template-columns:1.3fr .9fr; gap:28px;}
@media (max-width:800px){.input-grid{grid-template-columns:1fr;}}

.field-label{display:block; font-size:.82rem; font-weight:600; margin-bottom:6px; color:var(--text-dim);}
textarea, input[type=text], select{
  width:100%;
  font-family:'Inter', sans-serif;
  font-size:.96rem;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--surface-2);
  color:var(--text);
}
textarea{min-height:280px; resize:vertical; line-height:1.6;}
textarea:focus, input:focus, select:focus{outline:2px solid var(--teal); outline-offset:1px; border-color:var(--teal);}

.field-row{display:flex; gap:16px; margin-top:16px;}
.field-half{flex:1;}

.hint{font-size:.83rem; color:var(--text-dim); margin-top:10px;}

.explain-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
}
.explain-card h3{font-family:'Space Grotesk', sans-serif; margin:0 0 14px; font-size:1.05rem;}
.explain-card ol{margin:0; padding-left:1.2em; color:var(--text-dim);}
.explain-card li{margin-bottom:10px;}
.explain-card li::marker{color:var(--teal); font-weight:700;}

/* BUTTONS */
.btn{
  font-family:'Inter', sans-serif;
  font-weight:600;
  font-size:.92rem;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:8px;
  cursor:pointer;
  transition:transform .12s ease, filter .12s ease, background .12s ease;
}
.btn-primary{background:var(--teal); color:#0d1117;}
.btn-primary:hover:not(:disabled){filter:brightness(1.08); transform:translateY(-1px);}
.btn-primary:disabled{background:var(--surface-2); color:var(--text-dim); cursor:not-allowed;}
.btn-ghost{background:transparent; color:var(--text-dim); border-color:var(--line);}
.btn-ghost:hover{color:var(--text); border-color:var(--text-dim);}
.btn-small{padding:8px 16px; font-size:.82rem;}
#btnBreakdown{margin-top:22px;}

.stage-actions{display:flex; justify-content:space-between; margin-top:32px; gap:12px; flex-wrap:wrap;}

/* CHARACTER GRID */
.character-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(200px,1fr)); gap:18px;}
.character-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;}
.character-card .cc-img-wrap{
  width:100%; aspect-ratio:1; background:var(--surface-2);
  display:flex; align-items:center; justify-content:center; position:relative;
}
.character-card img{width:100%; height:100%; object-fit:cover; display:block;}
.character-card .cc-body{padding:14px;}
.character-card h4{margin:0 0 4px; font-family:'Space Grotesk', sans-serif; font-size:1rem;}
.character-card p{margin:0; font-size:.8rem; color:var(--text-dim);}

.spinner{
  width:26px; height:26px; border-radius:50%;
  border:2px solid var(--line); border-top-color:var(--teal);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.cc-retry{
  font-size:.78rem; color:var(--red); background:none; border:1px solid var(--red);
  border-radius:6px; padding:6px 12px; cursor:pointer;
}

/* SEGMENT LIST */
.segment-list{display:flex; flex-direction:column; gap:16px;}
.segment-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px 20px; display:flex; align-items:center; gap:18px; flex-wrap:wrap;
}
.segment-card .seg-num{
  font-family:'Space Grotesk', sans-serif; font-weight:700; font-size:1.2rem;
  background:var(--surface-2); color:var(--teal); width:40px; height:40px;
  border-radius:8px;
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.segment-card .seg-info{flex:1; min-width:200px;}
.segment-card .seg-info h4{margin:0 0 4px; font-size:.98rem; font-family:'Space Grotesk', sans-serif;}
.segment-card .seg-info p{margin:0; font-size:.83rem; color:var(--text-dim);}
.segment-card .seg-status{font-size:.75rem; font-weight:700; text-transform:uppercase; letter-spacing:.03em; padding:5px 12px; border-radius:20px;}
.status-pending{background:var(--surface-2); color:var(--text-dim);}
.status-working{background:rgba(232,163,61,.15); color:var(--amber);}
.status-ready{background:rgba(63,214,192,.15); color:var(--teal);}
.segment-card video{width:220px; max-width:100%; border-radius:8px; border:1px solid var(--line);}

/* FINAL STAGE */
#finalFilmWrap{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:24px;}
#finalFilmWrap video{width:100%; border-radius:8px; border:1px solid var(--line);}

/* TOAST */
.toast{
  position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(20px);
  background:var(--surface-2); color:var(--text); border:1px solid var(--line);
  padding:12px 20px; border-radius:8px;
  font-size:.88rem; opacity:0; pointer-events:none; transition:all .25s ease;
  max-width:90vw; text-align:center; z-index:100; box-shadow:var(--shadow);
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

/* Progress bar */
.progress-bar{height:5px; background:var(--surface-2); border-radius:4px; overflow:hidden; margin-top:8px;}
.progress-bar-fill{height:100%; background:linear-gradient(90deg, var(--teal), var(--amber)); width:0%; transition:width .3s ease;}