.intro-hero[data-astro-cid-kwgufruv]{display:flex;align-items:center;gap:2rem;padding:2.5rem 2rem 2rem;border-radius:1.25rem;margin-bottom:2.5rem;background:linear-gradient(135deg,#064e3b,#065f46 55%,#047857);color:#fff;overflow:hidden;position:relative}.intro-hero[data-astro-cid-kwgufruv]:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 80% 50%,rgba(52,211,153,.18) 0%,transparent 70%)}.intro-hero__text[data-astro-cid-kwgufruv]{flex:1;position:relative;z-index:1}.intro-badge[data-astro-cid-kwgufruv]{display:inline-block;background:#ffffff26;border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:.3rem 1rem;font-size:.8rem;letter-spacing:.04em;margin-bottom:1rem}.intro-hero__title[data-astro-cid-kwgufruv]{font-size:clamp(2.5rem,6vw,4rem);font-weight:800;line-height:1;margin:0 0 .75rem;letter-spacing:-.02em}.intro-grade[data-astro-cid-kwgufruv]{color:#6ee7b7}.intro-hero__sub[data-astro-cid-kwgufruv]{font-size:1rem;line-height:1.6;color:#ffffffd9;max-width:480px;margin-bottom:1.25rem}.intro-hero__stats[data-astro-cid-kwgufruv]{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem}.stat-pill[data-astro-cid-kwgufruv]{background:#ffffff26;border-radius:999px;padding:.3rem .9rem;font-size:.82rem;font-weight:600}.intro-cta[data-astro-cid-kwgufruv]{display:inline-block;background:#fff;color:#065f46;font-weight:700;padding:.65rem 1.5rem;border-radius:.625rem;text-decoration:none;font-size:.95rem;transition:transform .15s,box-shadow .15s}.intro-cta[data-astro-cid-kwgufruv]:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0003}.intro-hero__svg[data-astro-cid-kwgufruv]{width:280px;flex-shrink:0;opacity:.92;position:relative;z-index:1}@media(max-width:700px){.intro-hero__svg[data-astro-cid-kwgufruv]{display:none}}.intro-section[data-astro-cid-kwgufruv]{margin-bottom:2.5rem}.intro-section__title[data-astro-cid-kwgufruv]{font-size:1.3rem;font-weight:700;margin-bottom:1.25rem;color:var(--color-text, #1e293b)}.chapter-grid[data-astro-cid-kwgufruv]{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.chapter-card[data-astro-cid-kwgufruv]{border:1.5px solid color-mix(in srgb,var(--ch-color) 25%,transparent);border-radius:.875rem;padding:1.25rem;background:color-mix(in srgb,var(--ch-color) 5%,var(--color-surface, #fff));transition:transform .18s,box-shadow .18s}.chapter-card[data-astro-cid-kwgufruv]:hover{transform:translateY(-3px);box-shadow:0 8px 24px color-mix(in srgb,var(--ch-color) 20%,transparent)}.chapter-card__header[data-astro-cid-kwgufruv]{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.chapter-num[data-astro-cid-kwgufruv]{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ch-color)}.chapter-icon[data-astro-cid-kwgufruv]{font-size:1.3rem;font-family:serif;color:var(--ch-color);opacity:.85}.chapter-card__title[data-astro-cid-kwgufruv]{font-size:1rem;font-weight:700;margin:0 0 .4rem;color:var(--color-text, #1e293b)}.chapter-card__desc[data-astro-cid-kwgufruv]{font-size:.82rem;color:var(--color-text-muted, #64748b);line-height:1.5;margin-bottom:.875rem}.chapter-card__lessons[data-astro-cid-kwgufruv]{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.25rem}.chapter-card__lessons[data-astro-cid-kwgufruv] li[data-astro-cid-kwgufruv] a[data-astro-cid-kwgufruv]{display:block;font-size:.8rem;color:var(--ch-color);text-decoration:none;padding:.25rem .5rem;border-radius:.375rem;transition:background .15s}.chapter-card__lessons[data-astro-cid-kwgufruv] li[data-astro-cid-kwgufruv] a[data-astro-cid-kwgufruv]:hover{background:color-mix(in srgb,var(--ch-color) 12%,transparent)}.highlights-grid[data-astro-cid-kwgufruv]{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:1rem}.highlight-card[data-astro-cid-kwgufruv]{border-radius:.875rem;padding:1.25rem;border:1.5px solid transparent}.highlight-card--green[data-astro-cid-kwgufruv]{background:linear-gradient(135deg,#ecfdf5,#d1fae5);border-color:#6ee7b7}[data-astro-cid-kwgufruv][data-theme=dark] .highlight-card--green[data-astro-cid-kwgufruv]{background:linear-gradient(135deg,#022c22,#064e3b);border-color:#059669}.highlight-icon[data-astro-cid-kwgufruv]{font-size:1.75rem;font-family:serif;color:#059669;margin-bottom:.5rem}.highlight-card[data-astro-cid-kwgufruv] h3[data-astro-cid-kwgufruv]{font-size:.95rem;font-weight:700;margin:0 0 .4rem}.highlight-card[data-astro-cid-kwgufruv] p[data-astro-cid-kwgufruv]{font-size:.82rem;color:var(--color-text-muted, #64748b);line-height:1.5;margin:0}