.course-shell{max-width:1120px}.semester-hero{padding:64px 0 52px;background:var(--ink);color:#fff}.semester-hero .eyebrow{color:#8eb0ff}.semester-hero h1{max-width:14ch}.semester-hero .lede{color:#d9dce5;max-width:68ch}.semester-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.semester-actions .btn-ghost{color:#fff;border-color:#555a66}.semester-actions .btn-ghost:hover{background:#ffffff14}.semester-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:38px}.semester-facts div{padding:16px;border:1px solid #ffffff29;border-radius:14px}.semester-facts strong{display:block;font-size:1.45rem}.semester-facts span{color:#c4c8d2;font-size:.84rem}.course-section{padding:60px 0}.course-section.soft{background:var(--bg-soft);border-block:1px solid var(--line)}.course-intro{display:grid;gap:28px}.course-intro aside{padding:24px;background:#f2f6ff;border:1px solid #dce6ff;border-radius:18px}.course-intro ul{margin-bottom:0}.week-grid{display:grid;gap:14px;margin-top:30px}.week-card{display:grid;grid-template-columns:70px 1fr auto;gap:18px;align-items:center;padding:20px;background:#fff;color:inherit;border:1px solid var(--line);border-radius:16px;text-decoration:none}.week-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-1px)}.week-num{color:var(--blue);font-size:1.5rem;font-weight:800}.week-copy{display:grid;gap:4px}.week-copy small{color:var(--blue-ink);font-weight:800;text-transform:uppercase;letter-spacing:.07em}.week-copy strong{font-size:1.08rem}.week-copy span{color:var(--muted);font-size:.9rem}.week-arrow{font-size:1.35rem}.resource-grid{display:grid;gap:16px}.resource-card{padding:24px;border:1px solid var(--line);border-radius:18px}.resource-card p{color:var(--muted)}.unit-hero{padding:46px 0;background:var(--bg-soft);border-bottom:1px solid var(--line)}.unit-hero h1{max-width:18ch}.unit-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;color:var(--ink-soft);font-size:.9rem}.unit-main{display:grid;gap:34px;padding:48px 22px 80px}.unit-sidebar{align-self:start}.unit-sidebar .card{box-shadow:none}.unit-sidebar h2{font-size:1.1rem}.unit-sidebar ul{padding-left:18px}.unit-sidebar li{margin-bottom:7px}.unit-content{min-width:0}.unit-content>section{margin-bottom:54px}.unit-content h2{padding-bottom:12px;border-bottom:1px solid var(--line);font-size:1.75rem}.unit-content h3{font-size:1.2rem}.session{margin:24px 0;padding:26px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}.session-head{display:flex;justify-content:space-between;gap:16px;margin-bottom:20px}.session-head span{color:var(--blue-ink);font-size:.76rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.session h3{margin:0}.lesson-flow{display:grid;gap:12px}.flow-step{display:grid;grid-template-columns:92px 1fr;gap:14px;padding-top:12px;border-top:1px solid var(--line)}.flow-step:first-child{border-top:0}.flow-step strong{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.flow-step p{margin:0;color:var(--ink-soft)}.teacher-note{padding:20px 22px;background:#fff8e7;border:1px solid #f1dda7;border-radius:14px}.student-task{padding:22px;background:#f2f6ff;border:1px solid #dce6ff;border-radius:14px}.assessment-table{width:100%;border-collapse:collapse}.assessment-table th,.assessment-table td{padding:12px;text-align:left;vertical-align:top;border:1px solid var(--line)}.assessment-table th{background:var(--bg-soft)}.answer-key{margin-top:18px}.answer-key details{padding:15px 18px;border:1px solid var(--line);border-radius:12px}.unit-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:50px}.unit-nav a{padding:18px;border:1px solid var(--line);border-radius:14px;color:inherit;text-decoration:none}.unit-nav a:last-child{text-align:right}.print-note{color:var(--muted);font-size:.84rem}.guide-grid{display:grid;gap:18px}.guide-card{padding:24px;border:1px solid var(--line);border-radius:18px}.rubric{width:100%;border-collapse:collapse;font-size:.88rem}.rubric th,.rubric td{padding:10px;border:1px solid var(--line);vertical-align:top}.rubric th{background:var(--bg-soft)}
@media(min-width:760px){.semester-facts{grid-template-columns:repeat(4,1fr)}.course-intro{grid-template-columns:1.35fr .8fr}.resource-grid{grid-template-columns:repeat(3,1fr)}.guide-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:940px){.unit-main{grid-template-columns:260px minmax(0,1fr)}.unit-sidebar{position:sticky;top:88px}}
@media(max-width:620px){.week-card{grid-template-columns:48px 1fr}.week-arrow{display:none}.flow-step{grid-template-columns:1fr;gap:3px}.unit-nav{grid-template-columns:1fr}.unit-nav a:last-child{text-align:left}.session{padding:20px}.assessment-table{font-size:.84rem}.assessment-table th,.assessment-table td{padding:8px}}

.embedded-tuner{width:100%;height:720px;border:0;border-radius:20px;background:#17191d;box-shadow:var(--shadow-lg)}
@media(max-width:720px){.embedded-tuner{height:1080px}}

.deep-dive{padding:22px;background:var(--bg-soft);border:1px solid var(--line);border-radius:16px}.deep-dive h2{border:0!important;padding:0!important;font-size:1.3rem!important}.deep-dive-links{display:grid;gap:10px}.deep-dive-links a{padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:10px;font-weight:700;text-decoration:none}

.unit-hero .back{display:block;width:max-content;margin-bottom:20px;color:var(--ink-soft);font-weight:700}.unit-hero .back:hover{color:var(--blue-ink)}
@media print{.site-header,.site-footer,.semester-actions,.unit-nav{display:none!important}.unit-hero{padding:20px 0}.unit-main{display:block;padding:20px}.unit-sidebar{position:static}.session{break-inside:avoid;box-shadow:none}.answer-key details{display:block}.answer-key summary{display:none}}