:root{--bg: #f7f8fb;--surface: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--soft: #f3f4f6;--primary: #2563eb;--primary-600: #1d4ed8;--radius: 14px;--shadow: 0 8px 24px rgba(0,0,0,.06);--ring: 0 0 0 3px rgba(37,99,235,.15)}html,body,#app{height:100%}*{box-sizing:border-box}body{margin:0;color:var(--text);background:var(--bg);font:16px/1.45 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,"Apple Color Emoji","Segoe UI Emoji"}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1120px;margin:0 auto;padding:16px}.stack{display:grid;gap:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:12px}.site-footer{margin-top:40px;background:var(--surface);border-top:1px solid var(--border)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:10px;border:1px solid transparent;background:var(--primary);color:#fff;font-weight:600;cursor:pointer;transition:.15s ease}.btn:hover{background:var(--primary-600)}.btn.ghost{background:#fff;color:var(--text);border-color:var(--border)}.btn.ghost:hover{border-color:#cfd5df}.input,select,textarea{width:100%;padding:10px 12px;border-radius:10px;background:#fff;border:1px solid var(--border);outline:none;transition:.15s ease}.input:focus,select:focus,textarea:focus{box-shadow:var(--ring);border-color:var(--primary)}.label{display:block;font-size:13px;color:var(--muted);margin:0 0 6px}.form-row{display:grid;gap:12px}.form-actions{display:flex;gap:10px;align-items:center}.muted{color:var(--muted)}.center{text-align:center}