.roptp-app{--roptp-g1:#07569a;--roptp-g2:#22a8ab;--bg:#f3f7fb;--panel:#fff;--text:#183247;--muted:#667a8c;--line:#dce6ee;max-width:1120px;margin:24px auto;color:var(--text);font:inherit;line-height:1.5}
.roptp-app *{box-sizing:border-box}.roptp-hero{display:flex;align-items:center;gap:18px;padding:26px 28px;border-radius:20px;background:linear-gradient(120deg,var(--roptp-g1),var(--roptp-g2));color:#fff;box-shadow:0 12px 30px #07569a26}
.roptp-brandmark{width:58px;height:58px;flex:0 0 58px;border-radius:17px;background:#ffffff25;border:1px solid #ffffff65;display:grid;place-items:center;font-size:22px;font-weight:800;letter-spacing:-1px}
.roptp-hero-copy{flex:1;min-width:0}.roptp-eyebrow{font-size:11px;font-weight:800;letter-spacing:1.7px;opacity:.8}.roptp-hero h2{color:#fff!important;margin:2px 0 5px;font-size:clamp(23px,3vw,32px);line-height:1.2}.roptp-hero p{margin:0;color:#ffffffdf;font-size:14px}
.roptp-theme{border:1px solid #ffffff70;background:#ffffff20;color:#fff;border-radius:12px;padding:9px 12px;display:flex;align-items:center;gap:8px;cursor:pointer;font:inherit;font-size:13px;white-space:nowrap}
.roptp-panel{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:16px}.roptp-upload-card,.roptp-preview-card,.roptp-convert-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 5px 18px #102f4810;min-width:0}.roptp-convert-card{grid-column:1/-1}
.roptp-section-heading{display:flex;gap:12px;align-items:flex-start;margin-bottom:18px}.roptp-step{width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:linear-gradient(135deg,var(--roptp-g1),var(--roptp-g2));color:#fff;display:grid;place-items:center;font-weight:800}.roptp-section-heading h3{margin:0 0 3px;color:var(--text);font-size:18px}.roptp-section-heading p{margin:0;color:var(--muted);font-size:13px}
.roptp-dropzone{min-height:190px;border:2px dashed #b8cbd9;border-radius:15px;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;text-align:center;padding:20px;cursor:pointer;transition:.2s}.roptp-dropzone.is-dragging,.roptp-dropzone:hover{border-color:var(--roptp-g2);background:#e8f7f7}.roptp-file{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.roptp-upload-icon{width:42px;height:42px;border-radius:13px;background:#d9f1f1;color:#087f89;display:grid;place-items:center;font-size:26px}.roptp-dropzone strong{font-size:15px}.roptp-dropzone span,.roptp-dropzone small{color:var(--muted);font-size:13px}.roptp-file-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:10px;font-size:13px;overflow-wrap:anywhere}.roptp-remove{border:0;background:transparent;color:#c24141;cursor:pointer}
.roptp-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.roptp-options label{display:grid;gap:6px;font-size:13px;font-weight:700}.roptp-options select{width:100%;min-width:0;border:1px solid var(--line);border-radius:10px;padding:11px;background:var(--panel);color:var(--text);font:inherit;font-size:13px}
.roptp-preview-btn,.roptp-convert-btn{margin-top:16px;width:100%;border:0;border-radius:12px;padding:13px 18px;background:linear-gradient(110deg,var(--roptp-g1),var(--roptp-g2));color:#fff;font:inherit;font-weight:750;cursor:pointer}.roptp-convert-btn{font-size:16px}.roptp-convert-btn:disabled{opacity:.45;cursor:not-allowed}
.roptp-preview-empty{min-height:220px;background:var(--bg);border:1px dashed var(--line);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;gap:8px}.roptp-empty-icon{font-size:40px;color:var(--roptp-g2)}.roptp-preview-empty strong{font-size:14px}.roptp-preview-empty span{font-size:13px;color:var(--muted)}
.roptp-preview-status,.roptp-result{font-size:13px;color:var(--muted);margin-top:10px;overflow-wrap:anywhere}.roptp-slides{display:grid;grid-template-columns:1fr;gap:12px;max-height:600px;overflow:auto}.roptp-slide-frame{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel)}.roptp-slide-number{padding:8px 12px;background:var(--bg);font-size:12px;font-weight:800;color:var(--muted);border-bottom:1px solid var(--line)}.roptp-slide-content{padding:14px 18px;min-height:90px;max-height:260px;overflow:auto}.roptp-slide-content p{margin:0 0 7px;padding:4px 7px;border-left:3px solid var(--roptp-g2);overflow-wrap:anywhere}.roptp-slide-note{padding:7px 12px;font-size:11px;color:var(--muted);border-top:1px solid var(--line)}
.roptp-result a{color:var(--roptp-g1);font-weight:700}.roptp-progress{height:5px;border-radius:99px;background:var(--line);overflow:hidden;margin-top:12px}.roptp-progress span{display:block;width:35%;height:100%;background:linear-gradient(90deg,var(--roptp-g1),var(--roptp-g2));animation:roptp-progress 1.1s infinite alternate}@keyframes roptp-progress{to{width:95%}}
.roptp-footer{text-align:center;color:var(--muted);font-size:12px;padding:20px 10px}.roptp-footer a{color:inherit}.roptp-dark{--bg:#111d2b;--panel:#172638;--text:#e5eef7;--muted:#a8b8c8;--line:#2b4054}.roptp-dark .roptp-dropzone{border-color:#3b566d}.roptp-dark .roptp-dropzone.is-dragging,.roptp-dark .roptp-dropzone:hover{background:#183d45}.roptp-dark .roptp-upload-icon{background:#21464c;color:#8fe4e3}.roptp-dark .roptp-result a{color:#6dd8d5}
@media(max-width:760px){.roptp-hero{padding:20px;gap:12px;flex-wrap:wrap}.roptp-brandmark{width:46px;height:46px;flex-basis:46px}.roptp-theme{margin-left:auto}.roptp-theme-label{display:none}.roptp-panel{grid-template-columns:1fr}.roptp-convert-card{grid-column:auto}.roptp-upload-card,.roptp-preview-card,.roptp-convert-card{padding:17px}.roptp-options{grid-template-columns:1fr}.roptp-dropzone{min-height:160px}}