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16px;display:flex}.zone-label__txt{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.16em;color:var(--text-2);font-size:11px;font-weight:500}.zone-label__line{background:var(--line);flex:1;height:1px}.zone-label__time{font-family:var(--font-mono);color:var(--text-3);font-size:11px}@media (width<=1180px){.stat-row,.module-grid{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:minmax(0,1fr)}}@media (width<=800px){.stat-row{grid-template-columns:1fr 1fr}.module-grid{grid-template-columns:1fr}.state-grid{grid-template-columns:repeat(2,1fr)}.feature{padding:28px 22px}.feature__bar{flex-direction:column;align-items:stretch}.lesson-row{grid-template-columns:36px 1fr}.lesson-row__right{grid-column:1/-1;justify-content:space-between;margin-top:4px}}.file-upload{border-radius:10px;overflow:hidden}.file-upload__input{display:none}.file-upload__zone{border:2px dashed var(--line);background:var(--paper-2);cursor:pointer;text-align:center;border-radius:10px;flex-direction:column;align-items:center;gap:8px;padding:32px 24px;transition:border-color .15s,background .15s;display:flex}.file-upload__zone:hover,.file-upload--drag-over .file-upload__zone{border-color:var(--brand);background:var(--brand-bg)}.file-upload--disabled .file-upload__zone{opacity:.55;cursor:not-allowed}.file-upload__icon{width:32px;height:32px;color:var(--text-3);margin-bottom:4px}.file-upload--drag-over .file-upload__icon{color:var(--brand)}.file-upload__zone-text{color:var(--text);font-size:14px;font-weight:600}.file-upload__browse{color:var(--brand);text-decoration:underline}.file-upload__zone-hint{color:var(--text-3);font-size:12px}.file-upload__error{color:var(--red);background:var(--red-soft);border-radius:6px;margin-top:4px;padding:6px 12px;font-size:12px;font-weight:600}.assertion-field__error{color:var(--red);background:var(--red-soft);border-radius:6px;padding:6px 12px;font-size:12px;font-weight:600}.file-upload__uploading{border:1px solid var(--line);background:var(--paper-2);border-radius:10px;flex-direction:column;gap:10px;padding:24px;display:flex}.file-upload__uploading-label{color:var(--text);font-size:13px;font-weight:600}.file-upload__progress-track{background:var(--line);border-radius:99px;height:6px;overflow:hidden}.file-upload__progress-bar{background:var(--brand);border-radius:99px;height:100%;transition:width .1s linear}.file-upload__progress-pct{color:var(--text-3);align-self:flex-end;font-size:12px}.file-upload--done{border:1px solid var(--line);background:var(--paper-2);border-radius:10px;align-items:center;gap:14px;padding:14px 16px;display:flex}.file-upload__preview{object-fit:cover;background:var(--ink);border-radius:6px;flex-shrink:0;width:72px;height:48px}.file-upload__audio-placeholder{background:var(--brand-soft);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:72px;height:48px;display:flex}.file-upload__waveform{width:48px;height:20px;color:var(--brand)}.file-upload__meta{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.file-upload__filename{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.file-upload__badge{color:var(--green-deep);background:var(--green-soft);border-radius:99px;width:fit-content;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.file-upload__replace{color:var(--text-2);border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:7px;flex-shrink:0;padding:6px 14px;font-size:13px;font-weight:600;transition:border-color .15s,color .15s}.file-upload__replace:hover{border-color:var(--brand);color:var(--brand)}.wrap{max-width:1180px;margin:0 auto;padding:0 48px}@media (width<=800px){.wrap{padding:0 22px}}.hero{border-bottom:none;padding:5.5rem 0 5rem;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background-image:linear-gradient(90deg,#2563eb0d 1px,#0000 1px),linear-gradient(#2563eb0d 1px,#0000 1px);background-size:56px 56px;position:absolute;inset:0}.hero>.wrap{z-index:1;position:relative}.hero__crumb{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.14em;color:var(--text-2);margin-bottom:24px;font-size:11px;font-weight:500}.hero__crumb a{color:var(--text-2)}.hero__crumb a:hover{color:var(--brand)}.hero__crumb-sep{color:var(--text-3);margin:0 9px}.hero .eyebrow{margin-bottom:24px}.hero h1{max-width:20ch;margin:0 0 1.4rem}.hero__lede{max-width:60ch;margin:0}.hero__cta-row{flex-wrap:wrap;align-items:center;gap:18px 26px;margin-top:2rem;display:flex}section.block{padding:4rem 0 0}section.block:first-of-type{padding-top:3.5rem}.section-pad-bottom{padding-bottom:5rem}.section-head{margin-bottom:2rem}.section-head .eyebrow{margin-bottom:14px}.section-head__row{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:20px;display:flex}.section-head__sub{color:var(--text-2);max-width:64ch;margin:12px 0 0;font-size:15px;line-height:1.55}.objective{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:center;gap:30px 40px;margin-top:-2.25rem;padding:30px 32px;display:grid;position:relative;overflow:hidden}.objective:before{content:"";background:linear-gradient(180deg, var(--brand), var(--brand-deep));width:4px;position:absolute;top:0;bottom:0;left:0}.objective:after{content:"";pointer-events:none;background:radial-gradient(circle,#2563eb0f,#0000 70%);border-radius:50%;width:200px;height:200px;position:absolute;top:-60px;right:-60px}.objective__intro{z-index:1;position:relative}.objective__intro .eyebrow{margin-bottom:12px}.objective__goal{font-family:var(--font-sans);letter-spacing:-.02em;color:var(--ink);margin:0 0 8px;font-size:clamp(1.25rem,2vw,1.6rem);font-weight:800;line-height:1.18}.objective__sub{color:var(--text-2);max-width:46ch;margin:0;font-size:14px;line-height:1.55}.objective__steps{z-index:1;grid-template-columns:1fr 1fr;gap:14px 18px;margin:0;padding:0;list-style:none;display:grid;position:relative}.objective__step{align-items:flex-start;gap:12px;display:flex}.objective__num{font-family:var(--font-mono);letter-spacing:.06em;color:var(--brand);background:var(--brand-bg);border:1px solid var(--brand-soft);text-align:center;border-radius:8px;flex-shrink:0;min-width:30px;padding:6px 8px;font-size:11px;font-weight:600;line-height:1}.objective__step b{letter-spacing:-.01em;color:var(--ink);margin-bottom:1px;font-size:13.5px;font-weight:700;display:block}.objective__step span{color:var(--text-2);font-size:12.5px;line-height:1.45;display:block}.objective__step--done .objective__num{background:var(--green-soft);border-color:var(--green-soft);color:var(--green-deep)}.objective__step--now .objective__num{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 0 0 3px #2563eb29}.chat{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:24px;display:grid}@media (width<=1000px){.chat{grid-template-columns:1fr}}.chat-main{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow);flex-direction:column;height:calc(100vh - 230px);min-height:480px;display:flex;overflow:hidden}.chat-side{flex-direction:column;gap:18px;display:flex}.context-card{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px}.context-card__label{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-2);margin-bottom:14px;font-size:11px}.context-item{align-items:center;gap:10px;padding:8px 0;font-size:13px;display:flex}.context-item svg{width:15px;height:15px;color:var(--brand);flex-shrink:0}.context-item b{font-weight:600}.card--soft{background:var(--brand-bg);border-color:var(--brand-soft)}.fineprint{color:var(--text-3);max-width:70ch;margin-top:14px;font-size:12px;line-height:1.55}.login-page{background:var(--paper-2);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);text-align:center;width:100%;max-width:420px;padding:48px 40px}.login-card__logo{justify-content:center;align-items:center;gap:10px;margin-bottom:32px;display:flex}.login-card__logo-mark{background:var(--brand);color:#fff;border-radius:10px;place-items:center;width:36px;height:36px;font-size:18px;font-weight:800;display:grid}.login-card__logo-name{letter-spacing:-.01em;font-size:20px;font-weight:800}.login-card h1{font-family:var(--font-sans);letter-spacing:-.02em;margin:0 0 8px;font-size:22px;font-weight:800}.login-card p{color:var(--text-2);margin:0 0 28px;font-size:14px}@keyframes skel-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.skel{background:linear-gradient(90deg, var(--line) 25%, var(--paper-2) 50%, var(--line) 75%);background-size:200% 100%;border-radius:6px;animation:1.4s infinite skel-shimmer;display:block}.skel-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);flex-direction:column;gap:18px;min-height:232px;padding:28px;display:flex}@media (width<=900px){.objective{grid-template-columns:1fr;gap:22px;margin-top:-1.5rem;padding:26px 24px}.objective__steps{grid-template-columns:1fr}}@media (width<=800px){.hero{padding:3rem 0 2.75rem}}