:root{--bg: #0b0d13;--bg-soft: #0e1120;--panel: #12151f;--panel-2: #171b29;--border: #232a3d;--border-soft: #1b2131;--text: #e7eaf3;--text-muted: #8f98ad;--text-dim: #5d667c;--accent: #8b7bff;--accent-2: #22d3ee;--accent-grad: linear-gradient(135deg, #8b7bff, #22d3ee);--danger: #ff6b7a;--ok: #34d399;--radius: 12px;--font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:radial-gradient(900px 400px at 15% -10%,rgba(139,123,255,.14),transparent 60%),radial-gradient(900px 400px at 90% -10%,rgba(34,211,238,.1),transparent 60%),var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 28px;background:#0b0d13d9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft)}.brand{display:flex;align-items:center;gap:12px}.logo{width:34px;height:34px;border-radius:9px}.brand-name{font-size:19px;font-weight:700;letter-spacing:-.02em;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}.brand-tag{font-size:12px;color:var(--text-muted);line-height:1.2}.header-note{font-size:12.5px;color:var(--text-dim);border:1px solid var(--border-soft);background:var(--bg-soft);padding:6px 12px;border-radius:999px}.layout{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:24px 28px 40px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:22px;align-items:start}.col{display:flex;flex-direction:column;gap:22px;min-width:0}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border-soft);margin-bottom:18px}.tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:none;color:var(--text-muted);font:inherit;font-size:14px;font-weight:600;padding:10px 14px;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .15s}.tab:hover{color:var(--text)}.tab.active{color:var(--text);border-bottom-color:var(--accent)}.field{display:block;margin-bottom:16px}.field-label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:7px}.req{color:var(--accent-2);margin-left:2px}.field-hint{font-weight:400;color:var(--text-dim);margin-left:8px}.field input,.field textarea,.field select{width:100%;background:var(--bg-soft);border:1px solid var(--border);color:var(--text);font:inherit;font-size:14.5px;border-radius:9px;padding:11px 13px;outline:none;transition:border-color .15s,box-shadow .15s}.field textarea{resize:vertical;min-height:60px;line-height:1.5}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #8b7bff2e}.field input::placeholder,.field textarea::placeholder{color:var(--text-dim)}.paste-box{min-height:170px!important}.settings{margin-top:4px;border-top:1px dashed var(--border-soft);padding-top:16px}.settings-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:12px}.settings-row{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:14px}.key-input-wrap{display:flex;gap:8px}.key-input-wrap input{flex:1;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:13.5px}.key-note{font-weight:400;color:var(--text-dim)}.free-note{background:#34d39914;border:1px solid rgba(52,211,153,.3);border-radius:10px;padding:11px 14px;font-size:13px;color:var(--text-muted);margin-bottom:16px;line-height:1.5}.free-note-title{font-weight:700;color:var(--ok);text-transform:uppercase;font-size:11px;letter-spacing:.06em;margin-right:4px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;cursor:pointer;font:inherit;font-weight:600;border-radius:10px;padding:12px 18px;transition:transform .06s,filter .15s,opacity .15s}.btn:disabled{opacity:.45;cursor:not-allowed}.btn:not(:disabled):active{transform:translateY(1px)}.btn.primary{width:100%;background:var(--accent-grad);color:#0a0c14;font-size:15px}.btn.primary:not(:disabled):hover{filter:brightness(1.08)}.btn.primary.small{width:auto;padding:7px 14px;font-size:13px;border-radius:8px}.btn.secondary{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:7px 14px;font-size:13px;border-radius:8px}.btn.secondary:hover{border-color:var(--accent)}.ghost-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--panel-2);border:1px solid var(--border);color:var(--text-muted);font:inherit;font-size:12.5px;padding:7px 11px;border-radius:8px;cursor:pointer;white-space:nowrap}.ghost-btn:hover{color:var(--text);border-color:var(--accent)}.result-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.result-title-wrap{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}.result-title{font-size:17px;font-weight:700;letter-spacing:-.01em}.demo-pill{font-size:11px;font-weight:700;color:#f6c968;background:#fbbf241f;border:1px solid rgba(251,191,36,.35);border-radius:999px;padding:3px 10px;white-space:nowrap}.summary{background:var(--bg-soft);border-left:3px solid var(--accent);border-radius:8px;padding:11px 14px;color:var(--text-muted);font-size:14px;margin-bottom:14px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.chip{display:inline-flex;align-items:center;gap:7px;background:var(--panel-2);border:1px solid var(--border-soft);border-radius:999px;padding:5px 12px;font-size:12.5px;color:var(--text)}.chip-label{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-2)}.result-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:18px}.col-title{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim);margin-bottom:10px}.changes-col{min-width:0}.change-card{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:10px;padding:12px 14px;margin-bottom:10px}.change-head{margin-bottom:8px}.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;border-radius:999px;padding:4px 10px}.badge-icon{font-size:13px}.badge--added_role{background:#8b7bff24;color:#b7aaff}.badge--added_audience{background:#22d3ee1f;color:#7ddcf0}.badge--added_tone{background:#fbbf241f;color:#f6c968}.badge--added_constraint{background:#34d3991f;color:#7ee2bc}.badge--rewritten{background:#ff6b7a1f;color:#ffa0aa}.badge--clarified{background:#93c5fd1f;color:#a5c9fb}.badge--restructured{background:#f472b61f;color:#f7a8d4}.change-before,.change-after,.change-why{display:flex;gap:10px;align-items:baseline;font-size:13.5px;margin-top:6px}.change-k{flex:0 0 44px;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim)}.change-text{color:var(--text);min-width:0}.change-text.strike{color:var(--text-dim);text-decoration:line-through}.change-why .change-text{color:var(--text-muted)}.no-changes{color:var(--text-dim);font-size:13.5px;font-style:italic}.prompt-box{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:10px;padding:16px;cursor:pointer;transition:border-color .15s}.prompt-box:hover{border-color:var(--accent)}.prompt-box pre{margin:0;white-space:pre-wrap;word-break:break-word;font-family:var(--font);font-size:14.5px;line-height:1.6;color:var(--text)}.streaming-head{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;margin-bottom:14px}.streaming-head .ghost-btn{margin-left:auto}.spinner{width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.stream-text{margin:0;min-height:140px;background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:10px;padding:16px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:13px;color:var(--text-muted)}.error-card{border:1px solid rgba(255,107,122,.4);background:#ff6b7a14;border-radius:10px;padding:18px}.error-title{font-weight:700;color:var(--danger);margin-bottom:6px}.error-msg{color:var(--text-muted);font-size:14px;margin-bottom:14px;word-break:break-word}.empty{text-align:center;padding:14px 6px 6px}.empty-title{font-size:16px;font-weight:700;margin-bottom:18px}.pyramid{max-width:460px;margin:0 auto;text-align:left}.pyramid-row{border-radius:10px;padding:11px 14px;font-size:13.5px;line-height:1.5}.pyramid-row.raw{background:#5d667c1f;border:1px solid var(--border-soft)}.pyramid-row.decent{background:#8b7bff1a;border:1px solid rgba(139,123,255,.35)}.pyramid-row.best{background:#22d3ee1a;border:1px solid rgba(34,211,238,.35)}.pyramid-tag{display:inline-block;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-right:8px;vertical-align:middle}.pyramid-row.raw .pyramid-tag{color:var(--text-dim)}.pyramid-row.decent .pyramid-tag{color:#b7aaff}.pyramid-row.best .pyramid-tag{color:#7ddcf0}.pyramid-text{color:var(--text-muted)}.pyramid-arrow{text-align:center;color:var(--text-dim);line-height:1;padding:6px 0}.empty-hint{margin-top:20px;color:var(--text-dim);font-size:13.5px;max-width:440px;margin-left:auto;margin-right:auto}.history-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.history-title{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim)}.history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.history-item{display:flex;align-items:stretch;border:1px solid var(--border-soft);border-radius:10px;overflow:hidden;transition:border-color .15s}.history-item:hover{border-color:var(--border)}.history-item.active{border-color:var(--accent)}.history-main{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--bg-soft);border:none;color:var(--text);font:inherit;text-align:left;padding:10px 14px;cursor:pointer;min-width:0}.history-source{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-meta{display:block;font-size:12px;color:var(--text-dim);margin-top:2px}.history-del{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--bg-soft);border:none;border-left:1px solid var(--border-soft);color:var(--text-dim);font-size:16px;padding:0 12px;cursor:pointer}.history-del:hover{color:var(--danger)}.footer{text-align:center;color:var(--text-dim);font-size:12.5px;padding:18px 0 30px}@media(max-width:960px){.layout{grid-template-columns:1fr;padding:18px 16px 32px}.header{padding:12px 16px}.header-note{display:none}.settings-row,.result-grid{grid-template-columns:1fr}}