:root{--ink: #1a2027;--ink-muted: #5b6470;--paper: #f6f7f8;--card: #ffffff;--border: #dde1e5;--accent: #1f5fa8;--accent-dark: #163f70;--low: #2f8f4e;--low-bg: #e7f5ea;--medium: #b8790f;--medium-bg: #fbeed7;--high: #b8291f;--high-bg: #fbe4e2;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}input,select,textarea,button{font-family:inherit;font-size:15px}.app-shell{min-height:100vh;display:flex;flex-direction:column}.header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:var(--ink);color:#fff;flex-wrap:wrap;gap:12px}.header-brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:600;font-size:16px}.header-logo{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;background:var(--accent);font-size:12px;font-weight:700}.header-nav{display:flex;gap:18px;font-size:14px}.header-nav a{color:#d7dce1;text-decoration:none}.header-nav a:hover{color:#fff}.app-main{flex:1;display:flex;justify-content:center;padding:24px 16px 48px}.page{width:100%;max-width:480px}.page-narrow{max-width:420px;margin-top:40px}h1{font-size:22px;margin-bottom:8px}.muted{color:var(--ink-muted);font-size:14px;line-height:1.5}.code-entry-form{display:flex;gap:8px;margin-top:20px}.code-entry-form input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:8px}.code-entry-form button,button{padding:10px 16px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;font-weight:500}.code-entry-form button:hover,button:hover{background:var(--accent-dark)}button:disabled{opacity:.5;cursor:not-allowed}.error-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:20px}.error-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.error-card-label{font-size:12px;color:var(--ink-muted);margin:0;text-transform:uppercase;letter-spacing:.03em}.error-card-code{font-size:22px;font-weight:700;margin:2px 0 0}.error-card-machine{font-size:13px;color:var(--ink-muted);margin:2px 0 0}.severity-badge{font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap;text-transform:capitalize}.severity-low{background:var(--low-bg);color:var(--low)}.severity-medium{background:var(--medium-bg);color:var(--medium)}.severity-high{background:var(--high-bg);color:var(--high)}.error-card-description{font-size:14px;margin:14px 0 12px;line-height:1.5}.error-card-steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;font-size:14px}.error-card-steps li:before{content:"✓";color:var(--low);margin-right:8px;font-weight:700}.chat-heading{font-size:15px;color:var(--ink-muted);margin:0 0 10px}.chat-window{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:12px}.chat-messages{display:flex;flex-direction:column;gap:8px;max-height:340px;overflow-y:auto;padding-right:2px}.chat-empty{font-size:13px;color:var(--ink-muted);text-align:center;padding:20px 0}.chat-bubble{max-width:85%;padding:8px 12px;border-radius:12px;font-size:14px;line-height:1.4}.chat-bubble-user{align-self:flex-end;background:var(--accent);color:#fff}.chat-bubble-assistant{align-self:flex-start;background:var(--paper);color:var(--ink)}.chat-loading{opacity:.6}.chat-error{color:var(--high);font-size:13px;margin:0}.chat-suggestions{display:flex;flex-wrap:wrap;gap:6px}.chat-suggestions button{background:#fff;color:var(--ink);border:1px solid var(--border);font-size:12px;padding:6px 10px;font-weight:400}.chat-suggestions button:hover{background:var(--paper)}.chat-input-row{display:flex;gap:8px}.chat-input-row input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:8px}.admin-page{max-width:900px;display:flex;gap:20px;align-items:flex-start}.admin-sidebar{width:180px;flex-shrink:0;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px}.admin-sidebar-label{font-size:12px;color:var(--ink-muted);text-transform:uppercase;letter-spacing:.03em;margin:0 0 10px}.admin-list{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-direction:column;gap:4px}.admin-list button{width:100%;text-align:left;background:transparent;color:var(--ink);border:none;font-weight:400;padding:8px 10px}.admin-list button.active{background:var(--paper);font-weight:600;color:var(--accent-dark)}.admin-add-button{width:100%;background:#fff;color:var(--ink);border:1px solid var(--border);font-weight:400}.admin-editor{flex:1;min-width:0;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}.admin-editor-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.admin-editor-header h2{font-size:17px;margin:0}.upload-button{font-size:13px;border:1px solid var(--border);border-radius:8px;padding:8px 12px;cursor:pointer;background:#fff}.admin-form{display:flex;flex-direction:column;gap:12px}.admin-form label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--ink-muted)}.admin-form input,.admin-form select,.admin-form textarea{padding:8px 10px;border:1px solid var(--border);border-radius:8px;color:var(--ink)}.admin-form textarea{font-family:SF Mono,Consolas,monospace;font-size:13px;resize:vertical}.admin-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.admin-form-actions{display:flex;align-items:center;gap:12px}.admin-status{font-size:13px;color:var(--ink-muted)}.admin-test-panel{margin-top:20px;border-top:1px solid var(--border);padding-top:14px}.admin-test-row{display:flex;gap:8px;margin-bottom:10px}.admin-test-row input{flex:1;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.admin-test-reply{background:var(--paper);border-radius:8px;padding:10px 12px;font-size:13px;color:var(--ink)}@media (max-width: 640px){.admin-page{flex-direction:column}.admin-sidebar{width:100%}.admin-form-grid{grid-template-columns:1fr}}