:root{--color-bg: #f9f9f9;--color-surface: #ffffff;--color-border: rgba(0, 0, 0, .08);--color-text-primary: #111111;--color-text-secondary: #555555;--color-text-muted: #999999;--color-investor: #7C3AED;--color-founder: #0D9488;--color-gtm: #D97706;--color-risk: #E11D48;--color-investor-bg: #f5f0ff;--color-founder-bg: #f0fdf9;--color-gtm-bg: #fffbeb;--color-risk-bg: #fff1f4;--radius: 10px;--sidebar-width: 300px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--color-white: #ffffff;--color-black: #111111;--color-border-focus: #aaa;--color-chip-hover: #f0f0f0;--color-chip-hover-border: #ccc;--color-skeleton-light: #f0f0f0;--color-skeleton-dark: #e0e0e0;--color-history-border: #ddd}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--color-bg);color:var(--color-text-primary);font-size:14px;line-height:1.6}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--color-surface);border-right:1px solid var(--color-border);overflow-y:auto;padding:24px 20px;display:flex;flex-direction:column;gap:32px}.sidebar-section h2{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:12px}.sidebar-section textarea,.sidebar-section input{width:100%;border:1px solid var(--color-border);border-radius:6px;padding:10px 12px;font-family:var(--font);font-size:13px;color:var(--color-text-primary);background:var(--color-bg);resize:vertical;outline:none;transition:border-color .15s}.sidebar-section textarea:focus,.sidebar-section input:focus{border-color:var(--color-border-focus)}.sidebar-section textarea{min-height:140px}.profile-field{margin-bottom:12px}.profile-field label{display:block;font-size:12px;font-weight:500;color:var(--color-text-secondary);margin-bottom:5px}.main{flex:1;overflow-y:auto;padding:32px 40px;display:flex;flex-direction:column;gap:24px}.main-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.main-header h1{font-size:20px;font-weight:700}.header-actions{display:flex;gap:10px}.question-area{display:flex;flex-direction:column;gap:12px}.question-input{width:100%;border:1px solid var(--color-border);border-radius:var(--radius);padding:14px 16px;font-family:var(--font);font-size:15px;background:var(--color-surface);outline:none;transition:border-color .15s;resize:none;min-height:72px}.question-input:focus{border-color:var(--color-border-focus)}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{padding:6px 14px;border:1px solid var(--color-border);border-radius:20px;background:var(--color-surface);font-size:12px;color:var(--color-text-secondary);cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.chip:hover{background:var(--color-chip-hover);border-color:var(--color-chip-hover-border)}.btn{padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:opacity .15s}.btn:hover{opacity:.85}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--color-black);color:var(--color-white);border-color:var(--color-black);align-self:flex-start}.btn-secondary{background:var(--color-surface);color:var(--color-text-primary);border-color:var(--color-border)}.btn-ghost{background:transparent;color:var(--color-text-secondary);border-color:var(--color-border);font-size:13px;padding:7px 14px}.persona-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.persona-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:14px}.persona-card-header{display:flex;align-items:center;gap:12px}.persona-avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--color-white);flex-shrink:0}.persona-meta{flex:1}.persona-name{font-size:13px;font-weight:600}.persona-role{font-size:11px;color:var(--color-text-muted)}.persona-body{font-size:13px;line-height:1.65;color:var(--color-text-secondary)}.persona-empty{font-size:12px;color:var(--color-text-muted);font-style:italic}.skeleton{background:linear-gradient(90deg,var(--color-skeleton-light) 25%,var(--color-skeleton-dark) 50%,var(--color-skeleton-light) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:4px;height:12px;margin-bottom:8px}.skeleton:last-child{width:70%}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.persona-error{font-size:12px;color:var(--color-risk);display:flex;flex-direction:column;gap:8px}.session-history{border-top:1px solid var(--color-border);padding-top:24px;display:flex;flex-direction:column;gap:32px}.session-history h2{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:4px}.history-entry{display:flex;flex-direction:column;gap:12px}.history-question{font-size:14px;font-weight:600;color:var(--color-text-primary);padding:10px 14px;background:var(--color-bg);border-radius:8px;border-left:3px solid var(--color-history-border)}.history-responses{display:grid;grid-template-columns:1fr 1fr;gap:12px}.history-response{padding:14px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;font-size:12px;color:var(--color-text-secondary);line-height:1.6}.history-response-name{font-weight:600;font-size:11px;margin-bottom:6px}.sidebar-toggle{display:none;position:fixed;top:16px;left:16px;z-index:100;background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;padding:8px 12px;font-size:13px;cursor:pointer}@media (max-width: 768px){.sidebar-toggle{display:block}.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:99;transform:translate(-100%);transition:transform .25s ease}.sidebar.open{transform:translate(0)}.main{padding:56px 16px 16px}.persona-grid,.history-responses{grid-template-columns:1fr}}