:root {
  --otc-blue: #00529b;
  --otc-blue-dark: #003f77;
  --otc-grey: #e7e7e7;
  --otc-web-grey: #f5f5f5;
  --otc-text: #202124;
  --otc-border: #c7c7c7;
  --otc-warning: #fff3cd;
  --otc-danger: #842029;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: transparent; color: var(--otc-text); font-family: Arial, Helvetica, sans-serif; }
body { overflow-x: hidden; }
button, input, select { font: inherit; }
.calculator { width: 100%; padding: 1rem; }
.status { padding: .8rem 1rem; border: 1px solid #b6d4fe; border-radius: .25rem; background: #cfe2ff; }
.status.error { color: var(--otc-danger); border-color: #f5c2c7; background: #f8d7da; }
.control-grid, .course-filters { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: end; }
.field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.calc-type-field { display: none; }
label { font-weight: 700; }
select, input { width: 100%; min-height: 42px; padding: .55rem .65rem; border: 1px solid #777; border-radius: .25rem; background: #fff; }
select:focus, input:focus, button:focus-visible, a:focus-visible { outline: 3px solid #ffbf47; outline-offset: 2px; }
.residency-link { font-size: .9rem; }
.help { margin: 0; color: #555; font-size: .9rem; }
.or { align-self: center; justify-self: center; font-weight: 700; }
.course-filters { grid-template-columns: 1fr auto 1fr; margin: 1.5rem 0; }
.semester-workspace { display: grid; grid-template-columns: minmax(230px, 1fr) minmax(420px, 2fr); gap: 2rem; }
h2 { margin: .25rem 0 .75rem; font-size: 1.25rem; }
.course-results { max-height: 560px; overflow-y: auto; border-bottom: 1px solid var(--otc-border); }
.course-result { display: block; width: 100%; padding: .9rem; color: var(--otc-blue-dark); text-align: left; border: 0; border-top: 1px solid var(--otc-border); background: #fff; cursor: pointer; }
.course-result:hover { background: #eef6ff; }
.course-result[disabled] { color: #666; background: #eee; cursor: default; }
.semester-tabs { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 1rem; }
.semester-tabs button { min-height: 42px; color: var(--otc-blue); border: 1px solid var(--otc-blue); background: #fff; cursor: pointer; }
.semester-tabs button + button { border-left: 0; }
.semester-tabs button[aria-selected="true"] { color: #fff; background: var(--otc-blue); }
.estimate-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border-radius: .3rem; background: var(--otc-web-grey); box-shadow: 0 5px 15px rgba(0,0,0,.25); }
.estimate-table th, .estimate-table td { padding: .7rem; text-align: left; }
.estimate-table tbody tr:nth-child(even) { background: var(--otc-grey); }
.estimate-table .money { text-align: right; white-space: nowrap; }
.estimate-table .total { color: #fff; font-weight: 700; background: var(--otc-blue); }
.remove-course, .text-button { padding: .25rem .4rem; color: var(--otc-blue-dark); border: 0; background: transparent; text-decoration: underline; cursor: pointer; }
.estimate-actions { display: flex; gap: .75rem; justify-content: center; margin-top: 1rem; }
.button { padding: .55rem .9rem; border: 1px solid var(--otc-blue); border-radius: .25rem; cursor: pointer; }
.button.secondary { color: var(--otc-blue); background: #fff; }
.breakdown, .program-estimate { margin-top: 1.5rem; padding: 1rem; border: 1px solid var(--otc-border); border-radius: .3rem; background: #fff; }
.section-heading { display: flex; justify-content: space-between; gap: 1rem; }
.breakdown-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.breakdown-card { padding: .8rem; border: 1px solid var(--otc-border); border-radius: .25rem; }
.breakdown-card dl, .program-estimate dl { display: grid; grid-template-columns: 1fr auto; gap: .5rem 1rem; margin: 0; }
.breakdown-card dd, .program-estimate dd { margin: 0; text-align: right; }
.program-range { font-size: 1.5rem; font-weight: 700; color: var(--otc-blue-dark); }
.notice { padding: .75rem; background: var(--otc-warning); border-radius: .25rem; }
.disclaimer { margin-top: 2rem; padding: 1rem; background: var(--otc-warning); border-radius: .25rem; }
.empty { padding: 1rem; border: 1px dashed var(--otc-border); text-align: center; }

@media (max-width: 760px) {
  .calculator { padding: .5rem; }
  .control-grid, .course-filters, .semester-workspace { grid-template-columns: 1fr; gap: .75rem; }
  .or { display: none; }
  .course-results { max-height: 300px; }
  .estimate-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .estimate-table tr { display: grid; grid-template-columns: auto 1fr auto; align-items: center; }
  .estimate-table td { padding: .55rem; }
  .estimate-table .course-title { grid-column: 2 / 4; }
}

@media print {
  .status, .control-grid, .course-filters, .results-panel, .semester-tabs, .estimate-actions, .text-button, .remove-course { display: none !important; }
  .calculator, .breakdown { padding: 0; border: 0; }
  .semester-workspace { display: block; }
  .breakdown[hidden] { display: block; }
  .estimate-table { box-shadow: none; }
}