#bi-course {
  --ink: #18271f;
  --forest: #1b2d24;
  --forest-2: #284438;
  --cream: #f4f0e7;
  --paper: #fffdf8;
  --gold: #b08b4f;
  --gold-soft: #e8dcc4;
  --sage: #dce4dd;
  --rust: #8a4c35;
  --muted: #667168;
  --line: #c9cec7;
  background: var(--cream);
  color: var(--ink);
  font: 16px/1.65 Arial, Helvetica, sans-serif;
  min-height: 100vh;
}

#bi-course * { box-sizing: border-box; }
#bi-course [hidden] { display: none !important; }
#bi-course h1, #bi-course h2, #bi-course h3, #bi-course h4 {
  color: inherit;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1.12;
}
#bi-course h1 { font-size: clamp(42px, 7vw, 76px); margin: 12px 0 22px; }
#bi-course h2 { font-size: clamp(31px, 4vw, 48px); margin: 0 0 18px; }
#bi-course h3 { font-size: 27px; margin: 32px 0 12px; }
#bi-course h4 { font-size: 21px; margin: 24px 0 8px; }
#bi-course p { margin: 0 0 16px; }
#bi-course a { color: inherit; text-underline-offset: 4px; }
#bi-course button, #bi-course input, #bi-course textarea, #bi-course select { font: inherit; }
#bi-course button, #bi-course .button {
  align-items: center;
  background: var(--forest);
  border: 1px solid var(--forest);
  border-radius: 3px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font-weight: 700;
  gap: 8px;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  text-decoration: none;
}
#bi-course button:hover, #bi-course .button:hover { background: var(--forest-2); }
#bi-course button.secondary, #bi-course .button.secondary { background: transparent; color: var(--forest); }
#bi-course button:focus-visible, #bi-course a:focus-visible, #bi-course input:focus-visible,
#bi-course textarea:focus-visible, #bi-course summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.bi-course-hero {
  background: var(--forest);
  color: var(--cream);
  overflow: hidden;
  padding: 68px max(24px, 7vw) 62px;
  position: relative;
}
.bi-course-hero::after {
  border: 1px solid rgba(232, 220, 196, .32);
  border-radius: 50%;
  content: "";
  height: 430px;
  position: absolute;
  right: -100px;
  top: -230px;
  width: 430px;
}
.bi-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.bi-course-hero p:not(.bi-eyebrow) { font: 20px/1.55 Georgia, serif; max-width: 760px; }
.bi-hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.bi-pill { border: 1px solid rgba(255,255,255,.38); border-radius: 99px; font-size: 13px; padding: 7px 12px; }

.bi-course-shell { margin: 0 auto; max-width: 1240px; padding: 34px 24px 90px; }
.bi-progress-wrap { background: var(--paper); border: 1px solid var(--line); padding: 18px 22px; }
.bi-progress-line { align-items: center; display: flex; gap: 16px; justify-content: space-between; }
.bi-progress-line strong { font-size: 14px; }
.bi-progress-track { background: #dfe3de; height: 8px; margin-top: 12px; overflow: hidden; }
.bi-progress-fill { background: var(--gold); height: 100%; transition: width .3s ease; width: 0; }
.bi-layout { display: grid; gap: 32px; grid-template-columns: 280px minmax(0, 1fr); margin-top: 32px; }
.bi-sidebar { align-self: start; position: sticky; top: 18px; }
.bi-sidebar h2 { font: 13px Arial, sans-serif; letter-spacing: .14em; text-transform: uppercase; }
.bi-module-nav { display: grid; gap: 7px; }
.bi-module-nav button {
  align-items: flex-start;
  background: transparent;
  border-color: transparent;
  color: var(--ink);
  display: grid;
  font-weight: 400;
  grid-template-columns: 28px 1fr;
  justify-content: stretch;
  min-height: 0;
  padding: 9px;
  text-align: left;
}
.bi-module-nav button:hover, .bi-module-nav button[aria-current="page"] { background: var(--sage); }
.bi-module-nav button.complete .bi-nav-num { background: var(--gold); border-color: var(--gold); color: white; }
.bi-nav-num { align-items: center; border: 1px solid #9aa49d; border-radius: 50%; display: flex; font-size: 12px; height: 24px; justify-content: center; width: 24px; }
.bi-nav-label { font-size: 13px; line-height: 1.35; }

.bi-dashboard, .bi-module { background: var(--paper); border: 1px solid var(--line); padding: clamp(24px, 5vw, 62px); }
.bi-dashboard-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0,1fr)); margin: 28px 0; }
.bi-segment-card { border: 1px solid var(--line); min-height: 210px; padding: 26px; }
.bi-segment-card:first-child { background: var(--forest); color: white; }
.bi-segment-card .bi-eyebrow { color: var(--gold); }
.bi-flow { background: var(--sage); border-left: 4px solid var(--gold); font: 20px/1.55 Georgia, serif; margin: 28px 0; padding: 24px; }
.bi-module-meta { color: var(--muted); display: flex; flex-wrap: wrap; font-size: 13px; gap: 12px; margin-bottom: 28px; }
.bi-module-meta span { border-right: 1px solid var(--line); padding-right: 12px; }
.bi-module-meta span:last-child { border: 0; }
.bi-objectives { background: var(--sage); padding: 22px 24px; }
.bi-objectives h3 { font: 700 13px Arial, sans-serif; letter-spacing: .12em; margin: 0 0 10px; text-transform: uppercase; }
.bi-objectives ul, .bi-content ul, .bi-content ol { padding-left: 22px; }
.bi-objectives li, .bi-content li { margin-bottom: 7px; }
.bi-content { max-width: 820px; }
.bi-lesson { border-top: 1px solid var(--line); margin-top: 34px; padding-top: 2px; }
.bi-callout { border: 1px solid var(--gold); margin: 26px 0; padding: 20px 22px; }
.bi-callout strong { color: var(--rust); display: block; font-size: 12px; letter-spacing: .12em; margin-bottom: 6px; text-transform: uppercase; }
.bi-example { background: #f8f4eb; border-left: 3px solid var(--gold); margin: 18px 0; padding: 18px 20px; }
.bi-status-grid { display: grid; gap: 10px; grid-template-columns: repeat(4,1fr); margin: 18px 0; }
.bi-status-grid div { border: 1px solid var(--line); padding: 14px; }
.bi-status-grid strong { display: block; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }

.bi-check, .bi-exercise { background: #f7f6f1; border: 1px solid var(--line); margin-top: 32px; padding: 26px; }
.bi-check h3, .bi-exercise h3 { margin-top: 0; }
.bi-answer { display: block; margin: 10px 0; }
.bi-answer input { margin-right: 9px; }
.bi-feedback { border-left: 3px solid var(--gold); margin-top: 14px; padding: 10px 14px; }
.bi-feedback.good { border-color: #4c7b58; color: #315c3c; }
.bi-feedback.retry { border-color: var(--rust); color: #713923; }
.bi-exercise textarea, .bi-exercise input[type="text"] {
  background: white;
  border: 1px solid #9aa49d;
  border-radius: 2px;
  display: block;
  margin: 10px 0 16px;
  min-height: 48px;
  padding: 12px;
  width: 100%;
}
.bi-exercise textarea { min-height: 130px; resize: vertical; }
.bi-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; margin-top: 36px; }
.bi-actions-group { display: flex; flex-wrap: wrap; gap: 10px; }
.bi-downloads { display: grid; gap: 12px; grid-template-columns: repeat(3,1fr); margin-top: 24px; }
.bi-download { border: 1px solid var(--line); display: flex; flex-direction: column; padding: 20px; text-decoration: none; }
.bi-download:hover { border-color: var(--gold); transform: translateY(-1px); }
.bi-download small { color: var(--muted); margin-top: auto; padding-top: 14px; }
.bi-save-note { color: var(--muted); font-size: 13px; }
.bi-certificate { border: 2px solid var(--gold); padding: 32px; text-align: center; }
.bi-certificate input { border: 0; border-bottom: 1px solid var(--ink); margin: 18px auto; max-width: 430px; padding: 10px; text-align: center; width: 100%; }

@media (max-width: 880px) {
  .bi-layout { grid-template-columns: 1fr; }
  .bi-sidebar { position: static; }
  .bi-module-nav { grid-template-columns: repeat(2,1fr); }
  .bi-downloads { grid-template-columns: 1fr; }
  .bi-status-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 580px) {
  .bi-course-hero { padding: 45px 20px; }
  .bi-course-shell { padding: 20px 12px 60px; }
  .bi-dashboard, .bi-module { padding: 24px 18px; }
  .bi-dashboard-grid, .bi-module-nav { grid-template-columns: 1fr; }
  .bi-actions, .bi-actions-group { align-items: stretch; flex-direction: column; }
  .bi-actions button, .bi-actions .button { width: 100%; }
}
@media print {
  .bi-course-hero, .bi-sidebar, .bi-progress-wrap, .bi-actions, .bi-check button { display: none !important; }
  #bi-course, .bi-course-shell, .bi-module, .bi-dashboard { background: white; border: 0; color: black; margin: 0; padding: 0; }
  .bi-module[hidden] { display: block !important; page-break-before: always; }
}