:root{color-scheme:only light}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,SF Pro Display,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#fff;color:#111}#root{min-height:100%}.app{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:32px 16px 40px;background-color:#fff}.app h1{margin:0 0 16px;text-align:center;font-size:24px;font-weight:700;letter-spacing:-.01em}.settings-form{width:100%;max-width:540px;display:flex;flex-direction:column;gap:20px}.field{background:#fff;border:1px solid #e5e7eb;border-radius:20px;padding:20px 22px;box-shadow:0 16px 24px #0f172a14;display:flex;flex-direction:column;gap:14px}.field-header{display:flex;flex-direction:column;gap:6px}.field-title{font-size:16px;font-weight:600;color:#111}.field-description{margin:0;font-size:13px;line-height:1.45;color:#4b5563}.plan-options{display:flex;flex-wrap:wrap;gap:12px}.plan-card{border:1px solid #d1d5db;border-radius:16px;padding:12px 16px;display:flex;flex-direction:column;gap:8px;min-width:160px;cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease;background:#fff}.plan-card:hover{border-color:#111}.plan-card.selected{border-color:#111;box-shadow:0 8px 18px #1111111f}.plan-card-header{display:flex;align-items:center;gap:10px}.plan-card input[type=radio]{accent-color:#111111}.plan-card-title{font-size:15px;font-weight:600}.plan-card-description{font-size:13px;color:#4b5563}.checkbox-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.topic-option{border:1px solid #e5e7eb;border-radius:16px;padding:14px 16px;background:#f9fafb;display:flex;flex-direction:column;gap:10px}.topic-option input[type=checkbox]{accent-color:#111111}.topic-label{display:flex;align-items:center;gap:10px;font-weight:600;color:#111}.subtopic-list{border-top:1px solid #e5e7eb;padding-top:10px;display:flex;flex-direction:column;gap:8px}.subtopic-title{margin:0;font-size:13px;font-weight:600;color:#111}.subtopic-list label{display:flex;align-items:center;gap:8px;font-size:13px;color:#1f2937}.select-input,.text-input{width:100%;border:1px solid #d1d5db;border-radius:14px;padding:12px 14px;font-size:14px;background:#fff;color:#111;transition:border-color .2s ease,box-shadow .2s ease}.select-input:focus,.text-input:focus{outline:none;border-color:#111;box-shadow:0 0 0 3px #1111112e}.quiet-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.quiet-field{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#111}.info-message{margin:0 0 16px;font-size:13px;color:#4b5563;text-align:center}.error-message{margin:0;padding:12px 16px;border-radius:16px;border:1px solid #fca5a5;background:#fee2e2;color:#991b1b;text-align:center;font-size:14px}.submit-wrapper{display:flex;justify-content:center}button[type=submit]{padding:14px 36px;border-radius:999px;border:none;background:#111;color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}button[type=submit]:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 12px 24px #1111113d}button[type=submit]:disabled{background:#9ca3af;cursor:not-allowed;box-shadow:none;transform:none}