:root{--color-background-primary: #ffffff;--color-background-secondary: #f5f5f7;--color-background-tertiary: #e8e8ec;--color-background-info: #e6f4ee;--color-text-primary: #1a1a1a;--color-text-secondary: #6b6b76;--color-text-tertiary: #a0a0ab;--color-text-info: #1d9e75;--color-border-primary: #d8d8de;--color-border-secondary: #c4c4cc;--color-border-tertiary: #ececf0;--border-radius-md: 10px;--border-radius-lg: 16px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-background-secondary);color:var(--color-text-primary)}input,select,button{font-family:inherit;font-size:14px}input,select{border:.5px solid var(--color-border-primary);border-radius:var(--border-radius-md);padding:8px 10px;background:var(--color-background-primary);color:var(--color-text-primary)}button{border:.5px solid var(--color-border-primary);border-radius:var(--border-radius-md);padding:8px 12px;background:var(--color-background-primary);color:var(--color-text-primary);cursor:pointer}button:hover{background:var(--color-background-secondary)}.app-shell{max-width:480px;margin:0 auto;min-height:100vh;background:var(--color-background-primary);display:flex;flex-direction:column}.screen-area{flex:1;padding:1rem;overflow-y:auto;padding-bottom:80px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;display:flex;border-top:.5px solid var(--color-border-tertiary);background:var(--color-background-primary);padding:8px 0}.nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;border:none;background:transparent;padding:4px 0;font-size:10px;color:var(--color-text-secondary)}.nav-btn i{font-size:20px}.nav-active{color:var(--color-text-info)}.s-card{background:var(--color-background-secondary);border-radius:var(--border-radius-md);padding:.75rem}.s-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:.5px solid var(--color-border-tertiary)}.s-row:last-child{border-bottom:none}.c-teal{background:#1d9e75;color:#fff}.c-amber{background:#ba7517;color:#fff}.c-purple{background:#7f77dd;color:#fff}.c-coral{background:#e07a5f;color:#fff}.active-pill{background:var(--color-background-info);color:var(--color-text-info);border-color:transparent}.msg-bot{align-self:flex-start;background:var(--color-background-secondary);border-radius:var(--border-radius-lg);padding:10px 14px;font-size:14px;line-height:1.5;max-width:85%}.msg-user{align-self:flex-end;background:var(--color-background-info);color:var(--color-text-info);border-radius:var(--border-radius-lg);padding:10px 14px;font-size:14px;line-height:1.5;max-width:85%}.error-text{color:#c0392b;font-size:13px}