.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.app-header-inner{max-width:1280px;margin:0 auto;padding:0 28px;height:56px;display:flex;align-items:center;justify-content:space-between}.app-main{max-width:1280px;margin:0 auto;padding:28px 28px 64px;width:100%;display:grid;grid-template-columns:360px 1fr;gap:20px;align-items:start}.panel{background:var(--surface);border:1px solid var(--border);border-radius:8px}.panel-form{position:sticky;top:76px;max-height:calc(100vh - 100px);overflow-y:auto;padding:24px}.panel-preview{padding:24px}.form-section{border-top:1px solid var(--border);padding-top:20px;margin-top:4px;margin-bottom:4px}.section-label{font-size:10px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}.ai-action-block{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:20px}.ai-generate-btn{width:100%;padding:11px 18px;font-size:13px;font-weight:600;letter-spacing:.01em;border-radius:6px;background:var(--accent);color:var(--bg);border:none;display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:opacity .12s}.ai-generate-btn:hover:not(:disabled){opacity:.82}.ai-generate-btn:disabled{opacity:.45;cursor:wait}.design-chips{display:flex;gap:5px;flex-wrap:wrap;margin-top:14px}.design-chip{padding:3px 9px;font-size:11px;font-weight:500;border-radius:4px;border:1px solid var(--border);background:transparent;color:var(--text-muted);cursor:pointer;text-transform:capitalize;transition:background .1s,color .1s,border-color .1s}.design-chip:hover:not(.active){border-color:var(--text-secondary);color:var(--text-secondary)}.design-chip.active{background:var(--accent);color:var(--bg);border-color:var(--accent);font-weight:600}@keyframes spin{to{transform:rotate(360deg)}}.spinner{display:inline-block;width:13px;height:13px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}[data-theme=dark] .spinner{border-color:#0003;border-top-color:#000}.client-tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:0}.client-tab{background:transparent;border:none;border-bottom:2px solid transparent;border-radius:0;padding:8px 14px;font-size:12px;font-weight:400;color:var(--text-muted);margin-bottom:-1px;transition:color .1s,border-color .1s}.client-tab.active{border-bottom-color:var(--accent);color:var(--text-primary);font-weight:600}.html-output{font-family:SF Mono,Cascadia Mono,Fira Code,Courier New,monospace;font-size:11px;background:var(--bg);color:var(--text-secondary);resize:vertical;border-radius:5px}.export-row{display:flex;gap:8px;flex-wrap:wrap}.btn-primary{background:var(--accent);color:var(--bg);border:1px solid var(--accent);padding:8px 16px;font-size:12px;font-weight:600;border-radius:5px}.btn-primary:hover:not(:disabled){opacity:.82}.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--text-secondary);padding:8px 14px;font-size:12px;border-radius:5px}.btn-secondary:hover:not(:disabled){border-color:var(--text-secondary);color:var(--text-primary)}@media(max-width:940px){.app-main{grid-template-columns:1fr;padding:16px 16px 48px;gap:16px}.panel-form{position:static;max-height:none;overflow-y:visible}.app-header-inner{padding:0 16px}}@media(max-width:500px){.app-main{padding:12px 12px 40px}.panel-form,.panel-preview{padding:16px}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f5f3;--surface: #ffffff;--surface-2: #fafaf9;--border: #e8e8e4;--border-focus: #111111;--text-primary: #111111;--text-secondary: #555555;--text-muted: #999999;--accent: #111111;--accent-hover: #333333;--danger: #dc2626;--success: #16a34a;--warning-bg: #fffbf0;--warning-border: #fcd34d;--warning-text: #78350f;--input-bg: #ffffff;--label: #666666;--ai-highlight: #111111}[data-theme=dark]{--bg: #0f0f0f;--surface: #1a1a1a;--surface-2: #202020;--border: #2a2a2a;--border-focus: #ffffff;--text-primary: #eeeeee;--text-secondary: #aaaaaa;--text-muted: #555555;--accent: #ffffff;--accent-hover: #cccccc;--danger: #ef4444;--success: #22c55e;--warning-bg: #1c1a0a;--warning-border: #78350f;--warning-text: #fcd34d;--input-bg: #212121;--label: #888888;--ai-highlight: #ffffff}html,body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Arial,Helvetica,sans-serif;font-size:14px;line-height:1.5;background:var(--bg);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh}h1,h2,h3{font-weight:600;letter-spacing:-.02em}a{color:var(--accent);text-decoration:none}button{cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;border:none;border-radius:5px;padding:8px 16px;transition:background .12s,color .12s,opacity .12s,border-color .12s}button:disabled{opacity:.4;cursor:not-allowed}input,select,textarea{font-family:inherit;font-size:13px;color:var(--text-primary);background:var(--input-bg);border:1px solid var(--border);border-radius:5px;padding:9px 11px;width:100%;outline:none;transition:border-color .12s,box-shadow .12s}input:focus,select:focus,textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 2px #1111110f}[data-theme=dark] input:focus,[data-theme=dark] select:focus,[data-theme=dark] textarea:focus{box-shadow:0 0 0 2px #ffffff0f}input::placeholder,textarea::placeholder{color:var(--text-muted)}textarea{resize:vertical;min-height:72px}label{display:block;font-size:11px;font-weight:600;color:var(--label);margin-bottom:5px;letter-spacing:.04em;text-transform:uppercase}.optional-tag{font-weight:400;color:var(--text-muted);text-transform:none;letter-spacing:0;font-size:11px;margin-left:4px}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:10px}