*,*:before,*:after{box-sizing:border-box}:root{--ink: #1c2333;--ink-soft: #4b5468;--ink-faint: #8a91a5;--paper: #faf9f6;--card: #ffffff;--line: #e7e5df;--brand: #3b4bd8;--brand-deep: #2a36a8;--brand-soft: #eceefc;--accent: #f5a623;--accent-deep: #d88c0a;--accent-soft: #fdf3e0;--good: #1e9e6a;--good-soft: #e3f6ee;--bad: #d84343;--bad-soft: #fdeaea;--warn: #b7791f;--warn-soft: #fdf3df;--radius: 12px;--radius-lg: 18px;--shadow: 0 1px 3px rgba(28, 35, 51, .07), 0 8px 24px rgba(28, 35, 51, .06);--shadow-lg: 0 4px 12px rgba(28, 35, 51, .1), 0 16px 48px rgba(28, 35, 51, .12);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--sidebar: #20263d;--heading-weight: 800;--heading-spacing: -.015em}html,body,#root{margin:0;min-height:100vh}body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{line-height:1.2;margin:0 0 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th{text-align:left;font-size:.75rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-faint);font-weight:700;padding:10px 12px;border-bottom:2px solid var(--line)}table.data td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}table.data tr:last-child td{border-bottom:none}table.data td.num,table.data th.num{text-align:right;font-variant-numeric:tabular-nums}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.02em}.badge.blue{background:var(--brand-soft);color:var(--brand-deep)}.badge.green{background:var(--good-soft);color:var(--good)}.badge.red{background:var(--bad-soft);color:var(--bad)}.badge.amber{background:var(--warn-soft);color:var(--warn)}.badge.gray{background:#eef0f4;color:var(--ink-soft)}.site-header{position:sticky;top:0;z-index:40;background:#faf9f6eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.site-header 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900px){.hero{grid-template-columns:1fr;padding-top:48px}}.hero h1{font-size:3.2rem;margin-bottom:18px}.hero h1 .accent-word{color:var(--brand)}.hero .sub{font-size:1.2rem;color:var(--ink-soft);max-width:34rem;margin-bottom:28px}.hero-board{background:linear-gradient(160deg,#232a4d,#3b4bd8 130%);border-radius:24px;padding:28px;box-shadow:var(--shadow-lg);color:#fff;transform:rotate(1.5deg)}.hero-board .board-canvas{background:#fffdf8;border-radius:14px;min-height:230px;position:relative;overflow:hidden}.section{max-width:1160px;margin:0 auto;padding:56px 24px}.section.alt{max-width:none;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section.alt>.inner{max-width:1160px;margin:0 auto;padding:0 24px}.kicker{color:var(--accent-deep);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;margin-bottom:10px}.feature{display:flex;flex-direction:column;gap:10px}.feature .icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1.3rem;background:var(--brand-soft)}.price-card{display:flex;flex-direction:column;gap:14px;position:relative}.price-card .price{font-size:2.4rem;font-weight:800;letter-spacing:-.02em}.price-card .per{color:var(--ink-faint);font-size:.9rem}.price-card.featured{border:2px solid var(--brand);box-shadow:var(--shadow-lg)}.price-card .flag{position:absolute;top:-13px;left:50%;transform:translate(-50%);background:var(--brand);color:#fff;font-size:.72rem;font-weight:800;padding:4px 14px;border-radius:999px;letter-spacing:.08em;text-transform:uppercase}.tutor-card{display:flex;flex-direction:column;gap:10px}.avatar{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:1.15rem;color:#fff;flex:none}.site-footer{border-top:1px solid var(--line);padding:36px 24px;color:var(--ink-faint);font-size:.9rem}.site-footer .inner{max-width:1160px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}.auth-wrap{min-height:calc(100vh - 65px);display:grid;place-items:center;padding:40px 20px}.auth-card{width:100%;max-width:420px}.app-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}@media (max-width: 860px){.app-shell{grid-template-columns:1fr}.app-side{display:none}}.app-side{background:var(--sidebar);color:#cdd3e8;padding:20px 14px;display:flex;flex-direction:column;gap:4px}.app-side .logo{color:#fff;padding:6px 10px 18px}.app-side a.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:#b6bdd6;font-weight:600;font-size:.93rem}.app-side a.nav-item:hover{background:#ffffff0f;color:#fff;text-decoration:none}.app-side a.nav-item.active{background:var(--brand);color:#fff}.app-side .spacer{flex:1}.app-main{padding:32px clamp(16px,4vw,44px);max-width:1200px;width:100%}.page-head{margin-bottom:24px}.page-head h1{font-size:1.9rem}.classroom{display:grid;grid-template-columns:1fr 320px;grid-template-rows:auto 1fr;height:100vh;background:#161a2b;color:#e7eaf6}.classroom.no-side{grid-template-columns:1fr}.classroom-top{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;padding:10px 18px;background:#10131f;border-bottom:1px solid #2a3050}.classroom-main{display:flex;flex-direction:column;min-width:0;min-height:0}.video-strip{display:flex;gap:10px;padding:10px 14px;overflow-x:auto;background:#10131f}.video-tile{position:relative;width:200px;aspect-ratio:16/10;flex:none;border-radius:10px;overflow:hidden;background:#232948}.video-tile video{width:100%;height:100%;object-fit:cover}.video-tile .name{position:absolute;left:8px;bottom:6px;font-size:.75rem;font-weight:700;background:#0000008c;padding:2px 8px;border-radius:6px}.board-area{flex:1;position:relative;min-height:0;margin:0 14px 8px;border-radius:12px;overflow:hidden;background:#fffdf8}.board-area canvas{position:absolute;top:0;right:0;bottom:0;left:0;touch-action:none}.wb-toolbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:8px 14px 12px;background:transparent}.wb-toolbar .tool{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;background:#232948;border:1px solid #343c66;color:#cdd3e8;cursor:pointer;font-size:1.05rem}.wb-toolbar .tool:hover{background:#2c3457}.wb-toolbar .tool.active{background:var(--brand);border-color:var(--brand);color:#fff}.wb-toolbar .swatch{width:26px;height:26px;border-radius:50%;border:2px solid transparent;cursor:pointer}.wb-toolbar .swatch.active{border-color:#fff;box-shadow:0 0 0 2px var(--brand)}.wb-toolbar .divider{width:1px;height:26px;background:#343c66;margin:0 6px}.classroom-side{background:#10131f;border-left:1px solid #2a3050;display:flex;flex-direction:column;min-height:0}.chat-log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;font-size:.9rem}.chat-msg .who{font-weight:700;font-size:.78rem;color:#8f97bd}.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid #2a3050}.chat-input input{flex:1;background:#1b2138;border-color:#343c66;color:#e7eaf6}.ctl-btn{width:44px;height:44px;border-radius:50%;border:none;cursor:pointer;display:grid;place-items:center;font-size:1.15rem;background:#2c3457;color:#fff}.ctl-btn:hover{background:#394270}.ctl-btn.off{background:var(--bad)}.ctl-btn.leave{background:var(--bad);width:auto;border-radius:999px;padding:0 20px;font-weight:700;font-size:.95rem}.empty{text-align:center;color:var(--ink-faint);padding:40px 16px}.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:20px}.tabs button{font:inherit;font-weight:650;padding:10px 18px;background:none;border:none;border-bottom:3px solid transparent;margin-bottom:-2px;color:var(--ink-soft);cursor:pointer}.tabs button.active{color:var(--brand);border-bottom-color:var(--brand)}dialog.modal{border:none;border-radius:var(--radius-lg);padding:28px;max-width:460px;width:92vw;box-shadow:var(--shadow-lg)}dialog.modal::backdrop{background:#1c233373}[data-brand=mytutors] .btn{border-radius:999px;padding:11px 24px}[data-brand=mytutors] .btn.small{border-radius:999px;padding:6px 14px}[data-brand=mytutors] .btn.big{border-radius:999px;padding:15px 34px}[data-brand=mytutors] .card{box-shadow:0 2px 4px #78503c0d,0 12px 32px #78503c12}[data-brand=mytutors] .site-header{border-bottom:none;box-shadow:0 2px 16px #78503c12}[data-brand=mytutors] .logo .mark{border-radius:50%;background:linear-gradient(140deg,#f5a184 0%,var(--brand) 75%);font-size:1.15rem}[data-brand=mytutors] nav.main a{font-weight:700}[data-brand=mytutors] .kicker{color:var(--accent-deep)}[data-brand=mytutors] .hero h1{font-size:3.4rem;line-height:1.08}[data-brand=mytutors] .feature .icon{border-radius:50%;background:var(--accent-soft)}[data-brand=mytutors] .badge{border-radius:999px}[data-brand=mytutors] input,[data-brand=mytutors] select,[data-brand=mytutors] textarea{border-radius:12px;border-width:2px}[data-brand=mytutors] .price-card .flag{border-radius:999px}[data-brand=mytutors] table.data th{text-transform:none;font-size:.82rem;letter-spacing:0}[data-brand=tutorllc] .btn{border-radius:4px;padding:11px 22px;font-weight:600;letter-spacing:.01em}[data-brand=tutorllc] .btn.small{border-radius:3px}[data-brand=tutorllc] .btn.big{border-radius:4px}[data-brand=tutorllc] .card{box-shadow:none;border-color:var(--line)}[data-brand=tutorllc] .card.tight{border-left:3px solid var(--brand)}[data-brand=tutorllc] .site-header{background:var(--card);border-bottom:1px solid var(--line);-webkit-backdrop-filter:none;backdrop-filter:none}[data-brand=tutorllc] .logo{font-weight:700;letter-spacing:-.02em;text-transform:uppercase;font-size:1.05rem}[data-brand=tutorllc] .logo .mark{border-radius:3px;background:var(--brand);font-family:Georgia,Times New Roman,serif;font-weight:700}[data-brand=tutorllc] nav.main{gap:26px;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600}[data-brand=tutorllc] .kicker{color:var(--brand);letter-spacing:.16em}[data-brand=tutorllc] .hero h1{font-size:2.9rem}[data-brand=tutorllc] .hero-board{transform:none;border-radius:6px}[data-brand=tutorllc] .hero-board .board-canvas{color:var(--ink)}[data-brand=tutorllc] .hero-board .board-canvas table.data td{border-color:var(--line)}[data-brand=tutorllc] .feature{border-top:2px solid var(--brand);padding-top:16px}[data-brand=tutorllc] .feature .icon{border-radius:4px;background:var(--brand-soft)}[data-brand=tutorllc] .badge{border-radius:3px;text-transform:uppercase;font-size:.68rem;letter-spacing:.06em}[data-brand=tutorllc] input,[data-brand=tutorllc] select,[data-brand=tutorllc] textarea{border-radius:4px}[data-brand=tutorllc] .price-card .flag{border-radius:3px}[data-brand=tutorllc] .avatar{border-radius:4px}[data-brand=tutorllc] .stat .value{font-weight:700}[data-brand=tutorllc] .app-side a.nav-item{border-radius:3px;font-size:.88rem}.mt-blob{position:absolute;border-radius:50%;filter:blur(2px);opacity:.5;z-index:0;pointer-events:none}.mt-hero-wrap{position:relative;overflow:hidden}.mt-hero-wrap>*:not(.mt-blob){position:relative;z-index:1}.mt-card-stack{display:grid;gap:16px}.mt-chat-bubble{background:var(--card);border:2px solid var(--line);border-radius:20px;padding:14px 18px;box-shadow:var(--shadow);max-width:90%}.mt-chat-bubble.right{margin-left:auto;background:var(--brand-soft);border-color:transparent}.tl-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--card)}@media (max-width: 780px){.tl-strip{grid-template-columns:repeat(2,1fr)}}.tl-strip>div{padding:22px 20px;border-right:1px solid var(--line)}.tl-strip>div:last-child{border-right:none}.tl-strip .n{font-size:1.7rem;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}.tl-strip .l{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-faint);font-weight:600}.tl-rule{height:3px;width:56px;background:var(--brand);margin-bottom:18px}.tl-numbered{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start}.tl-numbered .num{font-size:.8rem;font-weight:700;color:var(--brand);border:1px solid var(--brand);width:30px;height:30px;display:grid;place-items:center;flex:none}