:root{--navy: #1f2a6e;--navy-deep: #18215a;--ink: #2b3576;--muted: #6b73a6;--line: #e7e9f4;--bg: #ffffff;--bg-soft: #f4f5fb;--green: #1f9d62;--green-bg: #e4f5ec;--amber: #8a6d1f;--amber-bg: #fbf0cf;--radius: 14px;--radius-lg: 22px;--shadow: 0 1px 2px rgba(31, 42, 110, .06), 0 8px 24px rgba(31, 42, 110, .06);--maxw: 1160px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--navy)}.mono,.hero__banner,.hero__pills,.unit__code,.level__eyebrow,.access-card__eyebrow,.pill,.badge{font-family:ui-monospace,SF Mono,Cascadia Code,Menlo,Consolas,monospace}.hero{text-align:center;padding:18px 20px 26px;max-width:820px;margin:0 auto}.hero__banner{display:inline-block;font-size:11px;letter-spacing:.08em;color:var(--amber);background:var(--amber-bg);padding:6px 14px;border-radius:999px;margin-bottom:22px}.hero__title{font-size:clamp(40px,7vw,72px);line-height:1.02;color:var(--navy);font-weight:800;letter-spacing:-.02em;margin:0 0 18px}.hero__lede{font-size:clamp(16px,2.2vw,20px);line-height:1.5;color:var(--ink);margin:0 auto 22px;max-width:640px}.hero__pills{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);background:var(--bg-soft);padding:8px 16px;border-radius:999px;margin:0}.dot{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px 60px}.access{background:var(--bg-soft);border-radius:var(--radius-lg);padding:30px;margin-top:10px}.access__title{color:var(--navy);font-size:24px;margin:0 0 6px}.access__lede{color:var(--muted);margin:0 0 22px;font-size:15px}.access__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.access-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column}.access-card--primary{background:var(--navy);border-color:var(--navy);color:#fff}.access-card__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.access-card__eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:11px;letter-spacing:.08em;color:#fff}.access-card__eyebrow--muted{color:var(--muted)}.access-card__head{font-size:18px;margin:0 0 10px;line-height:1.25}.access-card--primary .access-card__head{color:#fff}.access-card:not(.access-card--primary) .access-card__head{color:var(--navy)}.access-card__body{font-size:14px;line-height:1.55;margin:0 0 20px;flex:1}.access-card--primary .access-card__body{color:#c9d0f2}.access-card:not(.access-card--primary) .access-card__body{color:var(--muted)}.access-card__link{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;font-size:15px;color:#fff}.access-card__link svg{transition:transform .15s ease}.access-card__link:hover svg{transform:translate(3px)}.access-card__link--muted{color:var(--navy)}.controls{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:28px 4px 20px;border-bottom:1px solid var(--line);margin-bottom:26px}.controls__tabs{display:flex;gap:10px;flex-wrap:wrap}.tab{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;transition:border-color .15s,box-shadow .15s}.tab:hover{border-color:#c7cbe6}.tab.is-active{border-color:var(--navy);box-shadow:inset 0 0 0 1px var(--navy)}.tab__dot{width:10px;height:10px;border-radius:50%}.controls__right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.search{border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:14px;width:200px;color:var(--ink);outline:none}.search:focus{border-color:var(--navy)}.btn{border-radius:999px;padding:10px 18px;font-size:14px;font-weight:700;text-decoration:none;cursor:pointer;display:inline-flex;align-items:center}.btn--ghost{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn--ghost:hover{border-color:#c7cbe6}.btn--primary{background:var(--navy);color:#fff;border:1px solid var(--navy)}.btn--primary:hover{background:var(--navy-deep)}.level{background:var(--level-tint, var(--bg-soft));border-radius:var(--radius-lg);padding:30px;margin-bottom:26px}.level__head{margin-bottom:18px}.level__eyebrow{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.level__name{font-size:40px;color:var(--navy);margin:4px 0 8px;font-weight:800;letter-spacing:-.02em}.level__desc{color:var(--ink);margin:0;font-size:15px;max-width:640px}.level__units{display:flex;flex-direction:column;gap:12px}.unit{background:#fff;border:1px solid transparent;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.unit.is-open{border-color:var(--level-color, var(--navy))}.unit__heading{margin:0}.unit__summary{width:100%;display:flex;align-items:center;gap:16px;background:none;border:none;padding:18px 22px;cursor:pointer;text-align:left;font:inherit}.unit__code{font-size:13px;color:var(--muted);min-width:34px}.unit__title{font-weight:700;color:var(--navy);font-size:16px;min-width:58px}.unit__focus{color:var(--ink);font-size:16px;flex:1;letter-spacing:.02em}.unit__meta{display:flex;gap:8px}.pill{font-size:11px;letter-spacing:.05em;padding:5px 10px;border-radius:999px;white-space:nowrap}.pill--ghost{background:var(--bg-soft);color:var(--muted)}.unit__toggle{width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--navy)}.unit.is-open .unit__toggle{background:var(--navy);color:#fff}.unit__panel{border-top:1px solid var(--line);padding:22px}.unit__cols{display:grid;grid-template-columns:1fr 1fr;gap:32px}.col__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.col__title{font-size:16px;color:var(--navy);margin:0}.col__list{display:flex;flex-direction:column;gap:10px}.col__foot{font-size:13px;color:var(--muted);margin:16px 0 0}.col__foot a{font-weight:600}.badge{font-size:10px;letter-spacing:.06em;padding:5px 10px;border-radius:6px}.badge--free{background:var(--green-bg);color:var(--green)}.badge--account,.badge--soft{background:var(--amber-bg);color:var(--amber)}.audio-track{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;transition:border-color .15s,background .15s}.audio-track.is-playing{border-color:var(--navy);background:#fafbff}.audio-track__btn{flex:none;width:40px;height:40px;border-radius:50%;border:none;background:var(--navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .1s,background .15s}.audio-track__btn:hover{background:var(--navy-deep)}.audio-track__btn:active{transform:scale(.94)}.audio-track__body{flex:1;min-width:0}.audio-track__row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:7px}.audio-track__label{font-size:15px;color:var(--ink);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.audio-track__time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;flex:none}.audio-track__bar{height:4px;border-radius:999px;background:var(--line);overflow:hidden}.audio-track__fill{display:block;height:100%;background:var(--navy);border-radius:999px;transition:width .1s linear}.activity{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;text-decoration:none;color:var(--ink);transition:border-color .15s,background .15s}.activity:hover{border-color:var(--navy);background:#fafbff}.activity__icon{flex:none;width:34px;height:34px;border-radius:9px;background:var(--bg-soft);color:var(--muted);display:inline-flex;align-items:center;justify-content:center}.activity__label{flex:1;font-size:15px;font-weight:500}.activity__arrow{color:var(--muted);display:inline-flex}.activity:hover .activity__arrow{color:var(--navy)}.empty{text-align:center;color:var(--muted);padding:40px;background:var(--bg-soft);border-radius:var(--radius-lg)}.foot{border-top:1px solid var(--line);max-width:var(--maxw);margin:0 auto;padding:28px 20px 50px;text-align:center;color:var(--muted);font-size:14px}.foot p{margin:0 0 8px}.foot__brand{font-weight:600;color:var(--ink)}@media (max-width: 860px){.access__grid{grid-template-columns:1fr}.unit__cols{grid-template-columns:1fr;gap:24px}.controls{align-items:stretch}.controls__right{width:100%}.search{flex:1;width:auto}}@media (max-width: 620px){.unit__summary{flex-wrap:wrap;gap:8px 14px}.unit__focus{flex-basis:100%;order:5}.unit__meta{order:4}.access,.level{padding:22px 18px}.level__name{font-size:30px}}