:root{--bg: #0f0f11;--surface: #1a1a1f;--surface-2: #222228;--border: #2e2e3a;--text: #e8e8f0;--text-muted: #7a7a8a;--accent: #7c8cff;--accent-hover: #9aa6ff;--btn-bg: #252530;--btn-hover: #2e2e3d;--radius: 10px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;min-height:100vh;padding:40px 20px 80px;line-height:1.5}#app{max-width:860px;margin:0 auto}header{margin-bottom:36px}header h1{font-size:26px;font-weight:700;letter-spacing:-.4px;margin-bottom:6px}.header-sub{color:var(--text-muted);font-size:14px}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:52px 32px;text-align:center;cursor:pointer;background:var(--surface);transition:border-color .18s ease,background-color .18s ease}.drop-zone:hover,.drop-zone--active{border-color:var(--accent);background:#7c8cff0d}.drop-zone-inner svg{color:var(--text-muted);margin-bottom:14px;display:block;margin-left:auto;margin-right:auto}.drop-zone-inner p{color:var(--text-muted);font-size:15px}.file-label{color:var(--accent);cursor:pointer;text-decoration:underline;text-underline-offset:2px}.hidden{display:none!important}.output-section{margin-top:36px}.copy-buttons{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}.copy-btn{padding:9px 20px;border:1px solid var(--border);border-radius:8px;background:var(--btn-bg);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:background-color .15s,border-color .15s;line-height:1}.copy-btn:hover{background:var(--btn-hover);border-color:var(--accent)}.copy-btn:active{transform:scale(.97)}.copy-btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.copy-btn--primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.previews{display:flex;flex-direction:column;gap:18px}.preview-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.preview-card-header{background:var(--surface-2);padding:9px 16px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.preview-hint{font-weight:400;text-transform:none;letter-spacing:0;font-size:11px}.preview-content{padding:18px 20px;font-size:14px;line-height:1.7;background:var(--surface)}.preview-plain{white-space:pre-wrap;color:var(--text);font-size:15px}.preview-html{color:var(--text);max-height:640px;overflow-y:auto}.preview-html p{margin-bottom:14px}.preview-html p:last-child{margin-bottom:0}.preview-html a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;word-break:break-all}.preview-html strong{font-weight:700;color:var(--text)}.preview-html em{font-style:italic;color:#c8c8d8}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px 28px 24px;max-width:480px;width:100%;box-shadow:0 24px 64px #00000080}.modal h2{font-size:18px;font-weight:600;margin-bottom:8px}.modal-label{color:var(--text-muted);font-size:13px;margin-bottom:10px}.modal-url{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:12px;color:var(--text-muted);word-break:break-all;background:var(--surface-2);border:1px solid var(--border);padding:8px 12px;border-radius:6px;margin-bottom:20px;line-height:1.5}.modal label{display:block;font-size:13px;font-weight:500;margin-bottom:8px;color:var(--text-muted)}.modal-input{width:100%;padding:10px 14px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:15px;margin-bottom:18px;outline:none;transition:border-color .15s}.modal-input:focus{border-color:var(--accent)}.modal-actions{display:flex;justify-content:flex-end}.toast{position:fixed;bottom:28px;right:28px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:10px 18px;font-size:14px;font-weight:500;color:var(--text);z-index:2000;animation:slideUp .2s ease;pointer-events:none}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}