:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-text: #1e293b;--color-text-secondary: #64748b;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-border: #e2e8f0;--color-error: #ef4444;--color-error-bg: #fef2f2;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}#root{min-height:100vh}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:linear-gradient(135deg,#1e3a5f,#0f172a);color:#fff;padding:3rem 1.5rem 2rem;text-align:center}.hero{max-width:800px;margin:0 auto 2rem}.headline{font-size:2.5rem;font-weight:700;line-height:1.2;margin-bottom:1rem;letter-spacing:-.02em}.subheadline{font-size:1.25rem;opacity:.9;font-weight:400;max-width:600px;margin:0 auto}.question-form{max-width:700px;margin:0 auto}.question-input{width:100%;padding:1.25rem;font-size:1.125rem;border:none;border-radius:var(--radius-lg);background-color:var(--color-surface);color:var(--color-text);resize:vertical;min-height:120px;box-shadow:var(--shadow-lg);font-family:inherit}.question-input:focus{outline:2px solid var(--color-primary);outline-offset:2px}.question-input::placeholder{color:var(--color-text-secondary)}.question-input:disabled{opacity:.7;cursor:not-allowed}.ask-button{margin-top:1rem;padding:.875rem 2rem;font-size:1.125rem;font-weight:600;background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color .2s ease,transform .1s ease;box-shadow:var(--shadow-md)}.ask-button:hover:not(:disabled){background-color:var(--color-primary-hover)}.ask-button:active:not(:disabled){transform:translateY(1px)}.ask-button:disabled{opacity:.6;cursor:not-allowed}.results-section{padding:3rem 1.5rem;max-width:1400px;margin:0 auto;width:100%}.results-title{font-size:1.5rem;font-weight:600;margin-bottom:2rem;text-align:center;color:var(--color-text)}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.response-card{background-color:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}.response-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.card-header{padding:1rem 1.25rem;background-color:#f8fafc}.provider-name{font-size:1rem;font-weight:600;color:var(--color-text)}.card-body{padding:1.25rem;min-height:150px}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;color:var(--color-text-secondary);padding:1rem}.spinner{width:32px;height:32px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:1rem;background-color:var(--color-error-bg);border-radius:var(--radius-sm)}.error-icon{width:40px;height:40px;border-radius:50%;background-color:var(--color-error);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.25rem}.error-message{color:var(--color-error);font-size:.875rem;text-align:center}.answer-text{color:var(--color-text);font-size:.9375rem;line-height:1.7;white-space:pre-wrap}.footer{margin-top:auto;padding:2rem 1.5rem;text-align:center;color:var(--color-text-secondary);font-size:.875rem;border-top:1px solid var(--color-border)}@media (max-width: 768px){.header{padding:2rem 1rem 1.5rem}.headline{font-size:1.75rem}.subheadline{font-size:1rem}.question-input{font-size:1rem;padding:1rem}.ask-button{width:100%;padding:1rem}.results-section{padding:2rem 1rem}.results-title{font-size:1.25rem}.results-grid{grid-template-columns:1fr;gap:1rem}}