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16px;background:var(--bg-primary);border-radius:8px;border:1px solid var(--border)}.settings-note strong{color:var(--text-primary)}.settings-field{margin-bottom:20px}.settings-field label{display:block;font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:8px;font-family:var(--font-sans)}.settings-field input{width:100%;padding:12px 16px;font-size:15px;font-family:var(--font-mono);background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border);border-radius:8px;outline:none;transition:border-color .15s}.settings-field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #7c6cf026}.settings-field input::placeholder{color:var(--text-muted);font-size:13px}.settings-clear{display:block;width:100%;padding:10px;font-size:13px;font-family:var(--font-sans);background:none;color:var(--error);border:1px solid var(--error);border-radius:8px;cursor:pointer;margin-top:8px;transition:background .15s}.settings-clear:hover{background:#f871711a}.settings-status{display:flex;gap:20px;margin-top:20px;font-size:14px;font-family:var(--font-mono);padding:12px 16px;background:var(--bg-primary);border-radius:8px;border:1px solid var(--border)}.key-active{color:var(--success);font-weight:600}.key-active:before{content:"● "}.key-inactive{color:var(--text-muted)}.welcome-brand{font-size:52px;font-weight:900;letter-spacing:1px;margin:0 0 6px;line-height:1}.welcome-cards{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;width:100%;max-width:900px}.welcome-concepts{display:flex;flex-direction:column;align-items:center;gap:10px}.welcome-concept-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}@media(max-width:768px){.welcome-brand{font-size:32px;letter-spacing:0}.welcome-cards{grid-template-columns:1fr;gap:12px}.welcome-concept-row{gap:6px}}.key-inactive:before{content:"○ "}.sample-observe-tabs{display:flex;flex:0 0 auto!important;height:auto!important;min-height:0!important;align-items:flex-end;border-bottom:1px solid var(--border);background:var(--bg-secondary);padding:6px 10px 0;gap:4px}.sample-observe-tab{padding:7px 16px 8px;font-size:12px;font-weight:500;font-family:inherit;background:transparent;border:1px solid transparent;border-bottom:none;border-top-left-radius:6px;border-top-right-radius:6px;color:var(--text-muted);cursor:pointer;transition:color .12s,background .12s,border-color .12s;margin-bottom:-1px}.sample-observe-tab:hover{color:var(--text-primary);background:color-mix(in srgb,var(--accent) 8%,transparent)}.sample-observe-tab.active{color:var(--text-primary);background:var(--bg-secondary);border-color:var(--border);border-bottom-color:var(--bg-secondary)}.sample-observe-trace{flex:1 1 auto;min-height:0;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.sample-observe-toggle{flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none}.sample-observe-toggle input[type=checkbox]{cursor:pointer;margin:0}.sample-observe-toggle-hint{font-size:10px;opacity:.7;margin-left:4px}.sample-observe-toggle code{font-family:ui-monospace,monospace;font-size:10px;background:color-mix(in srgb,var(--accent) 12%,transparent);padding:1px 4px;border-radius:3px}