:root{--bg: #0f172a;--bg-card: #1e293b;--bg-input: #1e293b;--text: #e2e8f0;--text-muted: #94a3b8;--text-dim: #64748b;--accent: #38bdf8;--accent-hover: #7dd3fc;--border: #334155;--border-focus: #38bdf8;--danger: #f87171;--success: #4ade80;--radius: 8px;--radius-lg: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.main{flex:1;max-width:800px;width:100%;margin:0 auto;padding:2rem 1rem}.header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;border-bottom:1px solid var(--border);background:var(--bg-card)}.header-title{font-size:1.5rem;color:var(--accent)}.header-subtitle{font-size:.875rem;color:var(--text-muted);margin-top:.25rem}.header-nav{display:flex;gap:1rem}.nav-link{color:var(--text-muted);text-decoration:none;font-size:.875rem}.nav-link:hover{color:var(--accent)}.footer{border-top:1px solid var(--border);padding:1.5rem 2rem;text-align:center}.footer-links{display:flex;justify-content:center;gap:1.5rem;margin-bottom:.75rem}.footer-link{color:var(--text-dim);text-decoration:none;font-size:.8rem}.footer-link:hover{color:var(--accent)}.footer-disclaimer{font-size:.75rem;color:var(--text-dim)}.form{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem}.form-section{margin-bottom:1.5rem}.form-heading{font-size:1.25rem;margin-bottom:.5rem}.form-description{color:var(--text-muted);font-size:.9rem}.form-field{margin-bottom:1.25rem}.field-label{display:block;font-size:.9rem;font-weight:500;margin-bottom:.5rem;color:var(--text)}.required{color:var(--danger)}.field-textarea,.field-select{width:100%;padding:.75rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-family:var(--font);font-size:.9rem;line-height:1.5;transition:border-color .15s}.field-textarea:focus,.field-select:focus{outline:none;border-color:var(--border-focus)}.field-textarea::placeholder{color:var(--text-dim)}.field-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;padding-right:2rem;cursor:pointer}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-field-checkbox{margin-bottom:1.5rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.9rem}.checkbox-input{width:1rem;height:1rem;accent-color:var(--accent)}.checkbox-text{color:var(--text)}.field-hint{font-size:.8rem;color:var(--text-dim);margin-top:.25rem;margin-left:1.5rem}.submit-button{width:100%;padding:1rem;background:var(--accent);color:#0f172a;border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:background .15s}.submit-button:hover:not(:disabled){background:var(--accent-hover)}.submit-button:disabled{opacity:.5;cursor:not-allowed}.output-view{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem}.output-header{margin-bottom:1rem}.output-heading{font-size:1.25rem;margin-bottom:.25rem}.output-hint{color:var(--text-muted);font-size:.85rem}.output-toolbar{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.toolbar-btn{padding:.5rem 1rem;background:var(--bg-input);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);font-size:.85rem;cursor:pointer;transition:all .15s;white-space:nowrap}.toolbar-btn:hover{border-color:var(--accent);color:var(--accent)}.toolbar-btn-primary{background:var(--accent);color:#0f172a;border-color:var(--accent);font-weight:500}.toolbar-btn-primary:hover{background:var(--accent-hover);color:#0f172a}.toolbar-btn-secondary{color:var(--text-muted)}.output-content{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;overflow-x:auto}.output-markdown{font-family:var(--font-mono);font-size:.85rem;line-height:1.7;white-space:pre-wrap;word-wrap:break-word;color:var(--text)}.output-actions{display:flex;gap:.5rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}.loading-state{text-align:center;padding:4rem 2rem;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg)}.loading-spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 1.5rem}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:1.1rem;margin-bottom:.5rem}.loading-subtext{color:var(--text-dim);font-size:.9rem}.error-state{text-align:center;padding:3rem 2rem;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg)}.error-icon{font-size:3rem;margin-bottom:1rem}.error-heading{font-size:1.25rem;margin-bottom:.75rem}.error-message{color:var(--text-muted);margin-bottom:1.5rem}.error-actions{display:flex;gap:.5rem;justify-content:center}@media (max-width: 640px){.form-row{grid-template-columns:1fr}.header{flex-direction:column;gap:.5rem;text-align:center}.output-toolbar,.output-actions{flex-direction:column}}