.sheets-tutorial{--st-accent:#3ecf8e;--st-accent-dim:rgba(62,207,142,0.18);--st-warm:#f0c674;--st-ink:#e8f2f6;--st-paper-edge:rgba(255,255,255,0.09);--st-grid-dot:rgba(120,180,200,0.07);position:relative;color:var(--st-ink);background:radial-gradient(ellipse 900px 480px at 85% -5%,rgba(62,207,142,.14),transparent 55%),radial-gradient(ellipse 700px 360px at 0 105%,rgba(240,198,116,.08),transparent 50%),linear-gradient(165deg,#050a10,#0c1622 42%,#060d14)}.sheets-tutorial:before{content:"";pointer-events:none;position:absolute;inset:0;background-image:radial-gradient(var(--st-grid-dot) 1.2px,transparent 1.2px);background-size:22px 22px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),rgba(0,0,0,.15) 45%,transparent 85%);mask-image:linear-gradient(180deg,rgba(0,0,0,.5),rgba(0,0,0,.15) 45%,transparent 85%)}.sheets-tutorial-inner{position:relative;z-index:1}@keyframes st-lesson-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.st-lesson-animate{animation:st-lesson-in .45s ease-out both}.st-hero-title{font-family:var(--font-rajdhani),ui-sans-serif,system-ui,sans-serif;letter-spacing:-.02em;line-height:1.12;background:linear-gradient(120deg,#f0faf8,#b8f5e0 35%,#7dd3c0 65%,#e8f8f4);-webkit-background-clip:text;background-clip:text;color:transparent}.st-eyebrow-pill{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .85rem;border-radius:9999px;font-size:.65rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:rgba(184,245,224,.95);background:rgba(62,207,142,.12);border:1px solid rgba(62,207,142,.28);box-shadow:0 0 24px rgba(62,207,142,.08)}.st-card{border-radius:1rem;border:1px solid var(--st-paper-edge);background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.02));box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px -20px rgba(0,0,0,.55);backdrop-filter:blur(12px)}.st-nav-module{border-left:3px solid transparent;padding-left:.75rem;margin-left:-.25rem;transition:border-color .2s ease,background .2s ease}.st-nav-module[data-active=true]{border-left-color:var(--st-accent);background:linear-gradient(90deg,var(--st-accent-dim),transparent);border-radius:0 .75rem .75rem 0}.st-lesson-pill{transition:transform .15s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease}.st-lesson-pill:hover:not([data-active=true]){transform:translateX(2px)}.st-lesson-pill[data-active=true]{box-shadow:0 0 0 1px rgba(62,207,142,.35),0 8px 28px -8px rgba(62,207,142,.25)}.st-progress-ring circle{transition:stroke-dashoffset .6s ease}.st-prose{max-width:100%}.st-prose,.st-prose p{overflow-wrap:anywhere}.st-prose p{border-left:3px solid rgba(62,207,142,.25);padding-left:1rem;margin-left:.15rem}.st-prose p:first-of-type:first-letter{font-size:1.65em;font-weight:600;color:rgba(184,245,224,.95);float:left;line-height:1;margin-right:.15em;margin-top:.05em;font-family:var(--font-rajdhani),sans-serif}