:root {
  --bg:#0f1115;--surface:#181b22;--surface-2:#22262f;--border:#2c313b;
  --text:#e8e8ea;--text-dim:#9aa0ad;--accent:#d4a04c;--accent-hover:#e4b25e;
  --flag:#ffcc44;--flag-bg:rgba(255,204,68,0.18);--danger:#e05a5a;--success:#6bc78e;
  --radius:10px;--shadow:0 6px 24px rgba(0,0,0,0.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:16px;line-height:1.55;min-height:100vh}
body{display:flex;flex-direction:column}
main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:0 24px 48px}
.site-header{max-width:900px;width:100%;margin:0 auto;padding:48px 24px 32px;text-align:center}
.brand{display:inline-flex;align-items:center;gap:12px;margin-bottom:12px}
.brand-mark{color:var(--accent);font-size:28px;line-height:1}
.brand h1{margin:0;font-size:32px;font-weight:600;letter-spacing:-0.02em}
.tagline{margin:0 auto;color:var(--text-dim);font-size:15px;max-width:560px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.hidden{display:none !important}
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:48px 24px;text-align:center;cursor:pointer;transition:border-color 0.15s,background 0.15s,transform 0.15s;color:var(--text-dim)}
.drop-zone:hover,.drop-zone:focus,.drop-zone.dragover{border-color:var(--accent);background:rgba(212,160,76,0.05);color:var(--text);outline:none}
.drop-zone.dragover{transform:scale(1.01)}
.upload-icon{color:var(--accent);margin-bottom:12px}
.drop-primary{margin:0 0 6px;font-size:17px;font-weight:500;color:var(--text)}
.link{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.drop-secondary{margin:0;font-size:13px;color:var(--text-dim)}
.status-header{margin-bottom:16px}
.status-header h2{margin:0 0 4px;font-size:18px}
.filename{margin:0;color:var(--text-dim);font-size:14px;font-family:ui-monospace,Menlo,monospace}
.progress-wrap{background:var(--surface-2);border-radius:999px;height:8px;overflow:hidden;margin-bottom:12px}
.progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent-hover));transition:width 0.25s ease}
.status-detail{margin:0;font-size:14px;color:var(--text-dim)}
.results-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.results-header h2{margin:0 0 4px;font-size:18px}
.results-summary{margin:0;color:var(--text-dim);font-size:14px}
.results-actions{display:flex;gap:8px;flex-wrap:wrap}
.legend{display:flex;gap:16px;font-size:13px;color:var(--text-dim);margin-bottom:12px;flex-wrap:wrap}
.legend-item{display:inline-flex;align-items:center;gap:6px}
.swatch{display:inline-block;width:12px;height:12px;border-radius:3px}
.swatch-flag{background:var(--flag-bg);border:1px solid var(--flag)}
.swatch-clean{background:var(--surface-2);border:1px solid var(--border)}
.results-output{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:20px;font-family:ui-monospace,Menlo,monospace;font-size:14px;line-height:1.7;white-space:pre-wrap;max-height:420px;overflow-y:auto;min-height:200px;color:var(--text)}
.results-output:focus{outline:1px solid var(--accent)}
.results-output mark{background:var(--flag-bg);color:var(--flag);border-bottom:1px dashed var(--flag);padding:0 2px;border-radius:2px}
.btn{border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;cursor:pointer;transition:background 0.15s,transform 0.05s;font-family:inherit}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#1a1200}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--border)}
.btn:disabled{opacity:0.5;cursor:not-allowed}
.script-options-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.script-options-grid .full-width{grid-column:1/-1}
.radio-group{display:flex;flex-direction:column;gap:6px}
.radio-row,.checkbox-row{display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px;cursor:pointer}
.radio-row input,.checkbox-row input{accent-color:var(--accent)}
.label-hint{color:var(--text-dim);font-weight:normal;font-size:12px}
.cast-list{display:flex;flex-wrap:wrap;gap:8px;padding:12px;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;min-height:44px}
.cast-chip{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:4px 12px;font-size:13px;cursor:pointer;color:var(--text);transition:border-color 0.15s,background 0.15s}
.cast-chip:hover{border-color:var(--accent);background:rgba(212,160,76,0.08)}
.cast-empty{color:var(--text-dim);font-size:13px;font-style:italic}
.format-header{margin-bottom:20px}
.format-header h2{margin:0 0 4px;font-size:18px}
.format-grid{display:grid;grid-template-columns:minmax(280px,1fr) minmax(320px,1.4fr);gap:24px}
.format-controls{display:flex;flex-direction:column;gap:12px}
.form-row{display:flex;flex-direction:column;gap:6px}
.form-row-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-row label{font-size:13px;color:var(--text-dim);font-weight:500}
.form-row input[type="number"],.form-row input[type="text"],.form-row select,.form-row textarea{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:14px;font-family:inherit;width:100%}
.form-row input[type="color"]{width:100%;height:36px;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;cursor:pointer}
.form-row select:focus,.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--accent)}
.export-buttons{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.gslides-status{margin:0;font-size:13px;color:var(--text-dim);min-height:18px}
.gslides-status.error{color:var(--danger)}
.gslides-status.success{color:var(--success)}
.format-preview{display:flex;flex-direction:column;gap:12px}
.preview-mode-toggle{display:flex;gap:16px;padding:8px 12px;background:var(--surface-2);border:1px solid var(--border);border-radius:6px}
.preview-wrap{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:260px}
.slide-preview{position:relative;background:#000;color:#fff;box-shadow:0 4px 16px rgba(0,0,0,0.6);overflow:hidden}
.slide-preview .slide-text{position:absolute;left:0;right:0;padding:0 4%;text-align:center;white-space:pre-wrap;word-wrap:break-word}
.slide-preview mark{background:rgba(255,204,68,0.35);color:inherit;padding:0 2px;border-radius:2px}
.preview-nav{display:flex;justify-content:space-between;align-items:center;gap:8px}
.preview-nav span{color:var(--text-dim);font-size:13px}
.sample-label{font-size:13px;color:var(--text-dim);font-weight:500;margin-right:8px;align-self:center;flex-shrink:0}
.sample-text{flex:1;background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-family:ui-monospace,Menlo,monospace;font-size:13px;line-height:1.5;resize:vertical;min-height:60px}
.sample-text:focus{outline:none;border-color:var(--accent)}
#preview-nav-sample{align-items:flex-start}
.about{margin-top:32px;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.about h2{margin:0 0 12px;font-size:16px;color:var(--text)}
.about ul{margin:0 0 16px;padding-left:20px;color:var(--text-dim);font-size:14px}
.about li{margin-bottom:6px}
.about li strong{color:var(--text)}
.about-footer{margin:0;color:var(--text-dim);font-size:13px}
.about-footer a{color:var(--accent)}
.site-footer{text-align:center;padding:24px;color:var(--text-dim);font-size:13px;border-top:1px solid var(--border)}
.site-footer p{margin:0}
@media (max-width:900px){.format-grid{grid-template-columns:1fr}.script-options-grid{grid-template-columns:1fr}}
@media (max-width:600px){.site-header{padding:32px 16px 20px}.brand h1{font-size:26px}main{padding:0 16px 32px}.card{padding:18px}.drop-zone{padding:36px 16px}.results-actions{width:100%}.results-actions .btn{flex:1}}