:root {
  --bc-bg: #08080a;
  --bc-panel: #101014;
  --bc-panel-strong: #15151b;
  --bc-line: rgba(255, 255, 255, .12);
  --bc-muted: #a6a6b1;
  --bc-text: #f5f5f7;
  --bc-red: #ff5b5b;
  --bc-lime: #d8ff64;
  --bc-blue: #8db9ff;
  --bc-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

html { background: var(--bc-bg) !important; }

body.bc-course-document {
  margin: 0;
  background: var(--bc-bg) !important;
}

/* head.php adds a blank spacing element for ordinary theme pages. Course pages
   already reserve space beneath the fixed header, so retaining it exposes the
   theme's white document background before the course content begins. */
body.bc-course-document .ety-main {
  margin-bottom: 0 !important;
  background: var(--bc-bg);
}

/* Match the homepage header exactly: aligned inner content, the same dark
   surface, and the same full-width-to-pill transition after scrolling. */
body.bc-course-document .top-line { background: #1c1c20 !important; }
body.bc-course-document .main-nav { background: #0a0a0b !important; }
body.bc-course-document #tnb ul li[style*="3d3d3d"] { background: #1f1f24 !important; }

@media (min-width: 992px) {
  body.bc-course-document .top-line > .container,
  body.bc-course-document .main-nav > .container {
    max-width: 1320px !important;
    width: 100% !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 32px !important;
    padding-right: 32px !important;
  }

  body.bc-course-document #tnb { background: transparent !important; border-bottom: none !important; }
  body.bc-course-document #tnb ul { width: 100% !important; background: transparent !important; }
}

@media (min-width: 1090px) {
  body.bc-course-document .main-nav {
    position: fixed !important;
    top: 34px !important;
    right: 0 !important;
    left: 0 !important;
    width: auto !important;
    max-width: 100vw;
    margin-right: auto !important;
    margin-left: auto !important;
    z-index: 1030 !important;
    overflow: visible;
    border-radius: 0;
    box-shadow: none;
    transition: max-width .35s ease, border-radius .35s ease, box-shadow .35s ease;
  }

  body.bc-course-document .main-nav.is-scrolled {
    max-width: 1400px;
    overflow: hidden;
    border-radius: 999px;
    box-shadow: 0 10px 28px -14px rgba(0,0,0,.6);
  }

  body.bc-course-document .main-nav.is-scrolled > .container {
    max-width: 1320px !important;
    padding-right: 32px !important;
    padding-left: 32px !important;
  }
}

.bc-course-page {
  background: var(--bc-bg);
  color: var(--bc-text);
  min-height: 100vh;
  padding: 138px 24px 88px;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.bc-course-shell {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
}

.bc-course-breadcrumb {
  margin: 0 0 18px;
  color: var(--bc-muted);
  font: 12px/1.5 var(--bc-mono);
  letter-spacing: .04em;
}

.bc-course-breadcrumb a { color: inherit; text-decoration: none; }
.bc-course-breadcrumb a:hover { color: var(--bc-lime); }

.bc-course-hero,
.bc-ap-hero {
  overflow: hidden;
  border: 1px solid var(--bc-line);
  border-radius: 16px;
  background: #101014;
}

.bc-course-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.13fr) minmax(280px, .87fr);
  gap: 34px;
  min-height: 430px;
  padding: 54px;
}

.bc-course-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: .33;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 34px 34px;
}

.bc-course-hero-copy, .bc-course-terminal { position: relative; z-index: 1; }

.bc-course-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--bc-lime);
  font: 700 12px/1 var(--bc-mono);
  letter-spacing: .12em;
}

.bc-course-kicker::before { width: 8px; height: 8px; border-radius: 50%; background: currentColor; content: ""; box-shadow: 0 0 18px currentColor; }

.bc-course-hero h1 {
  max-width: 660px;
  margin: 0;
  font-size: 50px;
  line-height: 1.08;
  letter-spacing: -.055em;
  word-break: keep-all;
}

.bc-course-hero-lead {
  max-width: 620px;
  margin: 25px 0 0;
  color: #d0d0d7;
  font-size: 18px;
  line-height: 1.75;
  word-break: keep-all;
}

.bc-course-hero-name-note {
  max-width: 620px;
  margin: 18px 0 0;
  color: #a9a9b2;
  font-size: 14px;
  line-height: 1.65;
  word-break: keep-all;
}
.bc-course-hero-name-note + .bc-course-hero-lead { margin-top: 12px; }

.bc-course-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.bc-course-button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 18px; border: 1px solid var(--bc-line); border-radius: 10px; color: var(--bc-text); background: rgba(255,255,255,.04); font-weight: 700; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.bc-course-button:hover { color: #111; background: var(--bc-lime); border-color: var(--bc-lime); text-decoration: none; transform: translateY(-2px); }
.bc-course-button--quiet:hover { color: var(--bc-text); background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.35); }

.bc-course-terminal { align-self: end; overflow: hidden; border: 1px solid rgba(216,255,100,.28); border-radius: 14px; background: #09090b; box-shadow: 0 22px 55px rgba(0,0,0,.38); }
.bc-course-terminal-bar { display: flex; align-items: center; gap: 6px; height: 39px; padding: 0 15px; border-bottom: 1px solid var(--bc-line); color: #81818d; font: 11px var(--bc-mono); }
.bc-course-terminal-dot { width: 8px; height: 8px; border-radius: 50%; background: #ff5b5b; }
.bc-course-terminal-dot:nth-child(2) { background: #f7c75f; }
.bc-course-terminal-dot:nth-child(3) { background: var(--bc-lime); }
.bc-course-terminal-title { margin-left: auto; }
.bc-course-terminal pre { min-height: 242px; margin: 0; padding: 25px; overflow-x: auto; color: #e8e8ea; font: 13px/1.8 var(--bc-mono); }
.bc-code-comment { color: #767684; }
.bc-code-keyword { color: var(--bc-blue); }
.bc-code-accent { color: var(--bc-lime); }

.bc-course-section { margin-top: 70px; }
.bc-course-section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.bc-course-section-mark { margin: 0 0 9px; color: var(--bc-red); font: 700 11px/1 var(--bc-mono); letter-spacing: .12em; }
.bc-course-section h2 { margin: 0; font-size: 30px; line-height: 1.2; letter-spacing: -.04em; word-break: keep-all; }
.bc-course-section-note { max-width: 420px; margin: 0; color: var(--bc-muted); font-size: 14px; line-height: 1.65; text-align: right; word-break: keep-all; }
.bc-ib-study-lead { max-width: 660px; margin: 14px 0 0; color: #d0d0d7; font-size: 16px; line-height: 1.7; word-break: keep-all; }

.bc-ib-transition-intro { margin: 0 0 15px; color: var(--bc-text); font-size: 18px; font-weight: 700; letter-spacing: -.025em; word-break: keep-all; }
.bc-ib-transition-board { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 14px; overflow: hidden; border: 1px solid var(--bc-line); border-radius: 16px; background: var(--bc-panel); }
.bc-ib-transition-item { position: relative; display: flex; flex-direction: column; justify-content: space-between; min-height: 174px; padding: 27px 28px 25px; }
.bc-ib-transition-item + .bc-ib-transition-item { border-left: 1px solid var(--bc-line); }
.bc-ib-transition-item::before { width: 34px; height: 4px; margin-bottom: 30px; background: var(--bc-red); content: ''; }
.bc-ib-transition-item--revised::before { background: var(--bc-lime); }
.bc-ib-transition-item span { color: var(--bc-muted); font: 700 11px/1.3 var(--bc-mono); letter-spacing: .09em; }
.bc-ib-transition-item strong { margin-top: 10px; color: var(--bc-text); font-size: clamp(20px, 2.1vw, 26px); line-height: 1.25; letter-spacing: -.045em; word-break: keep-all; }
.bc-ib-transition-copy { padding: 24px 26px 26px; border-left: 3px solid var(--bc-lime); background: rgba(216,255,100,.08); }
.bc-ib-transition-copy p { max-width: 1040px; margin: 0; color: #d8d8de; font-size: 15px; line-height: 1.75; word-break: keep-all; }
.bc-ib-transition-copy p + p { margin-top: 13px; }
.bc-ib-transition-copy .bc-ib-transition-resources { margin-top: 19px; color: var(--bc-text); font-weight: 700; line-height: 1.65; }
.bc-ib-transition-resources i { margin: 0 4px; color: var(--bc-lime); font-style: normal; }

.bc-course-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 14px; }
.bc-course-card { grid-column: span 4; min-height: 100%; padding: 26px; border: 1px solid var(--bc-line); border-radius: 16px; background: var(--bc-panel); }
.bc-course-card--wide { grid-column: span 8; }
.bc-course-card--half { grid-column: span 6; }
.bc-course-card-label { display: block; margin-bottom: 16px; color: var(--bc-lime); font: 700 11px/1.3 var(--bc-mono); letter-spacing: .1em; }
.bc-course-card h3 { margin: 0 0 12px; font-size: 20px; line-height: 1.35; word-break: keep-all; }
.bc-course-card p, .bc-course-card li { color: #c3c3cc; font-size: 15px; line-height: 1.7; word-break: keep-all; }
.bc-course-card p:last-child { margin-bottom: 0; }
.bc-course-card ul { margin: 14px 0 0; padding-left: 18px; }
.bc-course-card li + li { margin-top: 7px; }

.bc-course-fact { display: flex; flex-direction: column; justify-content: space-between; gap: 12px; min-height: 168px; }
.bc-course-fact-value { color: var(--bc-text); font: 700 38px/1 var(--bc-mono); letter-spacing: -.08em; }
.bc-course-fact-value small { margin-left: 4px; color: var(--bc-lime); font-size: 14px; letter-spacing: 0; }
.bc-course-fact-text { color: var(--bc-muted); font-size: 14px; line-height: 1.5; }

.bc-course-path { counter-reset: bc-path; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.bc-course-path-step { position: relative; display: flex; flex-direction: column; overflow: hidden; padding: 22px 20px 20px; border-top: 2px solid var(--bc-red); background: var(--bc-panel-strong); }
.bc-course-path-step::before { display: block; margin-bottom: 16px; color: var(--bc-muted); font: 11px var(--bc-mono); counter-increment: bc-path; content: "STEP 0" counter(bc-path); }
.bc-course-path-visual { order: -1; height: 154px; margin: -22px -20px 20px; overflow: hidden; border-bottom: 1px solid var(--bc-line); background: #09090b; }
.bc-course-path-visual img { display: block; width: 100%; height: 100%; object-fit: cover; filter: saturate(.82) contrast(1.04); transition: transform .4s ease, filter .4s ease; }
.bc-course-path-step:hover .bc-course-path-visual img { filter: saturate(1) contrast(1.06); transform: scale(1.04); }
.bc-course-path-step h3 { margin: 0 0 8px; font-size: 18px; }
.bc-course-path-step p { margin: 0; color: var(--bc-muted); font-size: 14px; line-height: 1.65; word-break: keep-all; }

.bc-ib-learning-sessions { display: flex; flex-wrap: wrap; gap: 9px 0; margin: -7px 0 18px; color: var(--bc-muted); font: 700 12px/1.45 var(--bc-mono); letter-spacing: -.015em; }
.bc-ib-learning-sessions span { padding: 0 16px; }
.bc-ib-learning-sessions span:first-child { padding-left: 0; color: #d9d9e0; border-right: 1px solid var(--bc-line); }
.bc-ib-learning-sessions span:last-child { color: var(--bc-lime); }

.bc-course-table-wrap { overflow-x: auto; border: 1px solid var(--bc-line); border-radius: 16px; }
.bc-course-table { width: 100%; min-width: 680px; border-collapse: collapse; background: var(--bc-panel); }
.bc-course-table th, .bc-course-table td { padding: 20px; border-bottom: 1px solid var(--bc-line); text-align: left; vertical-align: top; word-break: keep-all; }
.bc-course-table th { color: var(--bc-muted); font: 700 11px var(--bc-mono); letter-spacing: .08em; }
.bc-course-table td { color: #d7d7de; font-size: 15px; line-height: 1.65; }
.bc-course-table tr:last-child td { border-bottom: 0; }
.bc-course-table strong { color: var(--bc-lime); }
.bc-course-compare-table thead th,
.bc-course-compare-table tbody th[scope="row"] {
  background: #08080a;
  color: var(--bc-lime);
  font: 700 16px/1.4 var(--bc-mono);
  letter-spacing: .02em;
  vertical-align: middle;
}
.bc-course-compare-table thead th { white-space: nowrap; }

.bc-course-callout { display: grid; grid-template-columns: auto 1fr; gap: 18px; margin-top: 16px; padding: 23px 25px; border-left: 3px solid var(--bc-lime); background: rgba(216,255,100,.08); }
.bc-course-callout-mark { color: var(--bc-lime); font: 700 12px var(--bc-mono); letter-spacing: .12em; }
.bc-course-callout p { margin: 0; color: #d8d8de; font-size: 15px; line-height: 1.7; word-break: keep-all; }

.bc-course-sources { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; padding: 0; list-style: none; }
.bc-course-sources a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 12px; border: 1px solid var(--bc-line); border-radius: 7px; color: var(--bc-muted); font: 12px var(--bc-mono); text-decoration: none; }
.bc-course-sources a:hover { color: var(--bc-lime); border-color: rgba(216,255,100,.55); }

.bc-course-footer-cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 70px; padding: 31px; border: 1px solid rgba(255,91,91,.42); border-radius: 18px; background: linear-gradient(120deg, rgba(255,91,91,.13), transparent 56%); }
.bc-course-footer-cta h2 { margin: 0; font-size: 26px; letter-spacing: -.045em; word-break: keep-all; }
.bc-course-footer-cta p { margin: 8px 0 0; color: var(--bc-muted); font-size: 14px; }

/* AP CSA redesign: preserve the dark developer brand. Variance 7, motion 2, density 5. */
.bc-ap-hero {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr);
  align-items: stretch;
}

.bc-ap-hero-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(34px, 5vw, 72px); }
.bc-ap-hero-label { margin: 0 0 20px; color: var(--bc-lime); font: 700 12px/1.3 var(--bc-mono); letter-spacing: .05em; }
.bc-ap-hero h1 { max-width: 550px; margin: 0; font-size: clamp(38px, 3.7vw, 54px); line-height: 1.12; letter-spacing: -.06em; word-break: keep-all; }
.bc-ap-hero-copy > p:not(.bc-ap-hero-label) { max-width: 490px; margin: 23px 0 0; color: #d0d0d7; font-size: 17px; line-height: 1.75; word-break: keep-all; }
.bc-ap-hero-copy > p.bc-ap-hero-name-note { margin-top: 17px; color: #a9a9b2; font-size: 14px; line-height: 1.65; }
.bc-ap-hero-copy > p.bc-ap-hero-name-note + p { margin-top: 12px; }
.bc-ap-hero-copy .bc-course-actions { margin-top: 30px; }
.bc-ap-contact-actions, .bc-ib-contact-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 30px; }
.bc-ap-compare-button { margin-top: 14px; }
.bc-ap-contact-button, .bc-ib-contact-button { width: 48px; height: 48px; padding: 0; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; cursor: pointer; overflow: hidden; transition: transform .18s ease, filter .18s ease; }
.bc-ap-contact-button:hover, .bc-ap-contact-button:focus-visible, .bc-ib-contact-button:hover, .bc-ib-contact-button:focus-visible { transform: translateY(-2px); filter: brightness(1.08); outline: none; }
.bc-ap-contact-button:active, .bc-ib-contact-button:active { transform: translateY(1px); }
.bc-ap-contact-button img, .bc-ib-contact-button img { display: block; width: 40px; height: 40px; object-fit: contain; }
.bc-ap-contact-button--naver, .bc-ib-contact-button--naver { background: #ffffff; color: #061e0f; }
.bc-ap-contact-button--kakao, .bc-ib-contact-button--kakao { background: #fee500; color: #2f2018; }
.bc-ap-contact-button--wechat, .bc-ib-contact-button--wechat { background: #07c160; color: #ffffff; font-size: 25px; }
.bc-ib-hero-secondary { margin-top: 13px; }
.bc-ap-hero-visual { min-height: 430px; margin: 0; overflow: hidden; background: #15151b; }
.bc-ap-hero-visual img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; filter: saturate(.82) contrast(1.04); }

.bc-ap-exam, .bc-ap-topics { margin-top: 76px; }
.bc-ap-section-intro { max-width: 660px; margin-bottom: 28px; }
.bc-ap-section-intro h2 { margin: 0; font-size: clamp(29px, 3vw, 39px); line-height: 1.16; letter-spacing: -.05em; word-break: keep-all; }
.bc-ap-section-intro p { margin: 12px 0 0; color: var(--bc-muted); font-size: 16px; line-height: 1.65; word-break: keep-all; }

.bc-ap-exam-ledger { display: grid; grid-template-columns: minmax(220px, .62fr) minmax(0, 1.38fr); overflow: hidden; border: 1px solid var(--bc-line); border-radius: 16px; background: var(--bc-panel); }
.bc-ap-exam-total { display: flex; flex-direction: column; justify-content: space-between; min-height: 300px; padding: 32px; border-right: 1px solid var(--bc-line); background: linear-gradient(145deg, rgba(216,255,100,.12), transparent 66%); }
.bc-ap-exam-total strong { display: block; color: var(--bc-lime); font: 700 clamp(72px, 9vw, 124px)/.8 var(--bc-mono); letter-spacing: -.12em; }
.bc-ap-exam-total strong span { margin-left: 6px; font-size: 20px; letter-spacing: -.06em; }
.bc-ap-exam-total p { margin: 0; color: #c5c5cd; font-size: 15px; }
.bc-ap-exam-sections { display: grid; }
.bc-ap-exam-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 24px; padding: 30px 34px; }
.bc-ap-exam-row + .bc-ap-exam-row { border-top: 1px solid var(--bc-line); }
.bc-ap-exam-row h3 { margin: 0; color: var(--bc-text); font: 700 15px/1.3 var(--bc-mono); }
.bc-ap-exam-row p { max-width: 430px; margin: 10px 0 0; color: var(--bc-muted); font-size: 15px; line-height: 1.6; word-break: keep-all; }
.bc-ap-exam-numbers { display: grid; grid-template-columns: auto auto; align-items: baseline; justify-content: end; column-gap: 6px; min-width: 160px; text-align: right; }
.bc-ap-exam-numbers strong { color: var(--bc-text); font: 700 48px/.85 var(--bc-mono); letter-spacing: -.1em; }
.bc-ap-exam-numbers > span { color: var(--bc-lime); font-size: 14px; }
.bc-ap-exam-numbers small { grid-column: 1 / -1; margin-top: 10px; color: #b9b9c2; font: 12px/1.3 var(--bc-mono); }

.bc-ap-topic-map { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.bc-ap-topic-map li { min-height: 190px; padding: 28px; border: 1px solid var(--bc-line); border-radius: 16px; background: transparent; }
.bc-ap-topic-map li:nth-child(1) { grid-column: span 7; background: rgba(216,255,100,.06); }
.bc-ap-topic-map li:nth-child(2) { grid-column: span 5; }
.bc-ap-topic-map li:nth-child(3) { grid-column: span 5; }
.bc-ap-topic-map li:nth-child(4) { grid-column: span 7; background: rgba(255,255,255,.035); }
.bc-ap-topic-map span { display: block; margin-bottom: 25px; color: var(--bc-lime); font: 700 11px/1.3 var(--bc-mono); letter-spacing: .04em; }
.bc-ap-topic-map strong { display: block; font-size: 24px; line-height: 1.25; letter-spacing: -.045em; word-break: keep-all; }
.bc-ap-topic-map p { max-width: 360px; margin: 10px 0 0; color: var(--bc-muted); font-size: 15px; line-height: 1.65; word-break: keep-all; }

.bc-ap-lab-note { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 32px; margin-top: 76px; padding: 36px; border: 1px solid rgba(216,255,100,.38); border-radius: 16px; background: linear-gradient(110deg, rgba(216,255,100,.11), rgba(216,255,100,.025) 64%, transparent); }
.bc-ap-lab-note h2 { margin: 0; font-size: 27px; line-height: 1.2; letter-spacing: -.045em; word-break: keep-all; }
.bc-ap-lab-note p { max-width: 680px; margin: 11px 0 0; color: #d2d2d9; font-size: 15px; line-height: 1.7; word-break: keep-all; }
.bc-ap-lab-note a { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 17px; border: 1px solid rgba(216,255,100,.5); border-radius: 10px; color: var(--bc-lime); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.bc-ap-lab-note a:hover { color: #111; background: var(--bc-lime); text-decoration: none; }
.bc-course-sources { margin-top: 18px; }

.bc-home-course-index {
  padding: 82px 24px 86px;
  border-top: 1px solid var(--bc-line);
  background:
    radial-gradient(circle at 12% 50%, rgba(216,255,100,.08), transparent 25rem),
    var(--bc-bg);
  color: var(--bc-text);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.bc-home-course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.bc-home-course-card { display: flex; flex-direction: column; min-height: 300px; padding: 29px; border: 1px solid var(--bc-line); border-radius: 16px; background: rgba(255,255,255,.025); }
.bc-home-course-card--guide { background: rgba(255,91,91,.075); border-color: rgba(255,91,91,.3); }
.bc-home-course-card h3 { margin: 0 0 14px; font-size: 25px; line-height: 1.25; letter-spacing: -.045em; word-break: keep-all; }
.bc-home-course-card p { margin: 0; color: var(--bc-muted); font-size: 15px; line-height: 1.7; word-break: keep-all; }
.bc-home-course-card a { display: inline-flex; align-items: center; gap: 9px; margin-top: auto; padding-top: 27px; color: var(--bc-lime); font: 700 13px var(--bc-mono); text-decoration: none; }
.bc-home-course-card a:hover { color: #fff; }
.bc-home-course-card a span { font-size: 18px; transition: transform .2s ease; }
.bc-home-course-card a:hover span { transform: translateX(4px); }

@media (max-width: 900px) {
  .bc-course-page { padding-top: 118px; }
  .bc-course-hero { grid-template-columns: 1fr; padding: 38px; }
  .bc-course-terminal { max-width: 610px; width: 100%; }
  .bc-course-path { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bc-ap-hero { grid-template-columns: 1fr; }
  .bc-ap-hero-copy { padding-bottom: 38px; }
  .bc-ap-hero-visual { min-height: 350px; max-height: 480px; }
  .bc-home-course-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .bc-course-page { padding: 101px 15px 60px; }
  .bc-course-hero { gap: 27px; padding: 27px 23px; border-radius: 14px; }
  .bc-course-hero h1 { font-size: 37px; line-height: 1.13; }
  .bc-course-hero-lead { margin-top: 18px; font-size: 16px; line-height: 1.68; }
  .bc-course-hero-name-note { font-size: 13px; }
  .bc-course-terminal pre { min-height: 188px; padding: 18px; font-size: 11px; }
  .bc-course-section { margin-top: 52px; }
  .bc-course-section-head { display: block; }
  .bc-course-section h2 { font-size: 26px; }
  .bc-course-section-note { margin-top: 12px; text-align: left; }
  .bc-ib-study-lead { margin-top: 12px; font-size: 15px; }
  .bc-ib-transition-intro { margin-bottom: 13px; font-size: 16px; }
  .bc-ib-transition-board { grid-template-columns: 1fr; border-radius: 14px; }
  .bc-ib-transition-item { min-height: 148px; padding: 23px; }
  .bc-ib-transition-item + .bc-ib-transition-item { border-top: 1px solid var(--bc-line); border-left: 0; }
  .bc-ib-transition-item::before { margin-bottom: 22px; }
  .bc-ib-transition-copy { padding: 22px 20px 23px; }
  .bc-ib-transition-copy p { font-size: 14px; }
  .bc-course-card, .bc-course-card--wide, .bc-course-card--half { grid-column: span 12; }
  .bc-course-path { grid-template-columns: 1fr; }
  .bc-course-path-visual { height: 210px; }
  .bc-ib-learning-sessions { display: block; margin-top: -3px; margin-bottom: 16px; font-size: 11px; }
  .bc-ib-learning-sessions span { display: block; padding: 0; }
  .bc-ib-learning-sessions span:first-child { padding-bottom: 5px; border-right: 0; }
  .bc-course-footer-cta { display: block; padding: 25px; }
  .bc-course-footer-cta .bc-course-actions { margin-top: 20px; }
  .bc-ap-hero-copy { padding: 30px 24px 34px; }
  .bc-ap-hero h1 { font-size: 38px; }
  .bc-ap-hero-copy > p:not(.bc-ap-hero-label) { font-size: 16px; }
  .bc-ap-hero-copy > p.bc-ap-hero-name-note { font-size: 13px; }
  .bc-ap-contact-actions, .bc-ib-contact-actions { gap: 8px; }
  .bc-ap-contact-button, .bc-ib-contact-button { width: 45px; height: 45px; }
  .bc-ap-contact-button img, .bc-ib-contact-button img { width: 37px; height: 37px; }
  .bc-ap-hero-visual { min-height: 260px; max-height: 330px; }
  .bc-ap-exam, .bc-ap-topics { margin-top: 56px; }
  .bc-ap-section-intro { margin-bottom: 22px; }
  .bc-ap-section-intro h2 { font-size: 27px; }
  .bc-ap-section-intro p { font-size: 15px; }
  .bc-ap-exam-ledger { grid-template-columns: 1fr; border-radius: 14px; }
  .bc-ap-exam-total { min-height: 170px; padding: 26px 24px; border-right: 0; border-bottom: 1px solid var(--bc-line); }
  .bc-ap-exam-total strong { font-size: 76px; }
  .bc-ap-exam-row { grid-template-columns: 1fr; gap: 19px; padding: 25px 24px; }
  .bc-ap-exam-numbers { justify-content: start; min-width: 0; text-align: left; }
  .bc-ap-topic-map { display: block; }
  .bc-ap-topic-map li { min-height: 0; margin-top: 11px; padding: 23px; border-radius: 14px; }
  .bc-ap-topic-map li:first-child { margin-top: 0; }
  .bc-ap-topic-map span { margin-bottom: 19px; }
  .bc-ap-topic-map strong { font-size: 22px; }
  .bc-ap-lab-note { display: block; margin-top: 56px; padding: 27px 24px; border-radius: 14px; }
  .bc-ap-lab-note h2 { font-size: 24px; }
  .bc-ap-lab-note a { margin-top: 21px; }
  .bc-home-course-index { padding: 56px 15px 62px; }
  .bc-home-course-card { min-height: 0; padding: 24px; }
  .bc-home-course-card h3 { font-size: 23px; }
}

@media (prefers-reduced-motion: reduce) {
  .bc-ap-contact-button, .bc-course-button { transition: none; }
}