:root{--navy:#003C7A;--blue:#0B5CAD;--saffron:#F77A0C;--green:#259435;--bg:#F6F8FC;--surface:#FFFFFF;--surface-muted:#EEF2F8;--border:#E1E7F1;--text:#003C7A;--text-muted:#5B6B8C;--text-subtle:#8794AE;--primary:#0B5CAD;--on-primary:#FFFFFF;--success:#1E8E3E;--success-surface:#E7F6EC;--danger:#C2410C;--danger-surface:#FDEDE5;--streak:#F77A0C;--streak-surface:#FEF1E6;--focus:#0B5CAD;--hero-bg-1:#021632;--hero-bg-2:#0B3F86;--on-dark:#FFFFFF;--on-dark-muted:#B9C8E4;--on-dark-subtle:#8EA2C6;--glass:rgba(255,255,255,.07);--glass-line:rgba(255,255,255,.16);--glass-label:rgba(2,22,50,.62);--holo:#7FB4FF;--accent-on-dark:#FFB36B;--g6:#1E8A45;--g7:#2167E6;--g8:#143062;--g9:#0E7C74;--g10:#5A45B0;--g11:#B4531B;--g12:#A3335A;--cs-sci:#1F6B62;--cs-phy:#28658D;--cs-chem:#92601D;--cs-bio:#286449;--cs-math:#7454A0;--cs-sst:#5146A8;--cs-eng:#2D5FA6;--cs-hin:#A3384F;--cs-san:#8A6414;--cs-art:#9A3C88;--cs-pe:#3B7A35;--cs-voc:#7A5536;--sub-bio:#286449;--sub-phy:#28658D;--sub-chem:#92601D;--sub-math:#7454A0;--shadow-sm:0 1px 2px rgba(0,60,122,.06);--shadow:0 1px 2px rgba(0,60,122,.05),0 12px 32px -14px rgba(0,60,122,.22);--shadow-lg:0 2px 4px rgba(0,60,122,.05),0 30px 60px -28px rgba(0,60,122,.35);--font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Noto Sans","Helvetica Neue",Arial,"Noto Sans Devanagari","Nirmala UI",sans-serif;--fs-sm:.9375rem;--fs-base:1.0625rem;--fs-md:1.1875rem;--fs-2xl:clamp(2rem,1.35rem + 2.3vw,3rem);--fs-hero:clamp(2.6rem,1.5rem + 4.4vw,4.5rem);--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:22px;--ease:cubic-bezier(.23,1,.32,1);--wrap:1180px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0B1220;--surface:#131C2E;--surface-muted:#1B2640;--border:#26324D;--text:#EAF0FF;--text-muted:#A3B0CC;--text-subtle:#76839F;--primary:#6EA2FF;--on-primary:#0B1220;--focus:#6EA2FF;--success:#4AD072;--success-surface:#123120;--danger:#FF8A65;--danger-surface:#3A1A10;--streak:#FF9A45;--streak-surface:#2C1C10;--g6:#5FD08A;--g7:#6EA2FF;--g8:#A7B8E8;--g9:#5ACDBF;--g10:#AFA2F2;--g11:#F0A26B;--g12:#F08DAE;--cs-sci:#62CDBB;--cs-phy:#74B4E4;--cs-chem:#E4AE5E;--cs-bio:#6CC495;--cs-math:#B79BE4;--cs-sst:#A9A0F0;--cs-eng:#7FB2F0;--cs-hin:#F08BA0;--cs-san:#E6BE63;--cs-art:#E68BD3;--cs-pe:#86D07C;--cs-voc:#D8AE88;--sub-bio:#6CC495;--sub-phy:#74B4E4;--sub-chem:#E4AE5E;--sub-math:#B79BE4;--hero-bg-1:#050B17;--hero-bg-2:#0D2A5A;--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow:0 1px 2px rgba(0,0,0,.25),0 12px 32px -14px rgba(0,0,0,.6);--shadow-lg:0 2px 4px rgba(0,0,0,.3),0 30px 60px -28px rgba(0,0,0,.75);color-scheme:dark}}:root[data-theme=dark]{--bg:#0B1220;--surface:#131C2E;--surface-muted:#1B2640;--border:#26324D;--text:#EAF0FF;--text-muted:#A3B0CC;--text-subtle:#76839F;--primary:#6EA2FF;--on-primary:#0B1220;--focus:#6EA2FF;--success:#4AD072;--success-surface:#123120;--danger:#FF8A65;--danger-surface:#3A1A10;--streak:#FF9A45;--streak-surface:#2C1C10;--g6:#5FD08A;--g7:#6EA2FF;--g8:#A7B8E8;--g9:#5ACDBF;--g10:#AFA2F2;--g11:#F0A26B;--g12:#F08DAE;--cs-sci:#62CDBB;--cs-phy:#74B4E4;--cs-chem:#E4AE5E;--cs-bio:#6CC495;--cs-math:#B79BE4;--cs-sst:#A9A0F0;--cs-eng:#7FB2F0;--cs-hin:#F08BA0;--cs-san:#E6BE63;--cs-art:#E68BD3;--cs-pe:#86D07C;--cs-voc:#D8AE88;--sub-bio:#6CC495;--sub-phy:#74B4E4;--sub-chem:#E4AE5E;--sub-math:#B79BE4;--hero-bg-1:#050B17;--hero-bg-2:#0D2A5A;--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow:0 1px 2px rgba(0,0,0,.25),0 12px 32px -14px rgba(0,0,0,.6);--shadow-lg:0 2px 4px rgba(0,0,0,.3),0 30px 60px -28px rgba(0,0,0,.75);color-scheme:dark}*,:after,:before{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:var(--fs-base);line-height:1.55;overflow-x:clip;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[hidden]{display:none!important}img,svg{max-width:100%}p{margin:0}a{color:inherit}h1,h2,h3,h4{color:var(--text);margin:0;text-wrap:balance}h2{font-size:var(--fs-2xl);font-weight:800;line-height:1.08;letter-spacing:-.022em}h3{font-weight:700;line-height:1.25;letter-spacing:-.01em}button{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:var(--r-sm)}section[id]{scroll-margin-top:76px}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:absolute;left:16px;top:-60px;z-index:100;background:var(--primary);color:var(--on-primary);padding:8px 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0,#021632 70%);-webkit-clip-path:inset(0 0 0 0);clip-path:inset(0 0 0 0);animation:sb-fallback-out .5s 4s forwards}.intro-inner{display:grid;justify-items:center;grid-gap:14px;gap:14px}.intro-book{width:min(240px,60vw);height:auto;overflow:visible}.intro-word{width:min(220px,52vw);height:auto}.intro-tag{color:#FFB36B;font-size:.8125rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase}@keyframes sb-fallback-out{to{opacity:0;visibility:hidden}}.mo .hero-copy>*,.mo .site-header{opacity:0;animation:sb-fallback-in .6s 2.8s forwards}@keyframes sb-fallback-in{to{opacity:1}}.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,var(--saffron),#FFFFFF 50%,var(--green));transform-origin:0 50%;transform:scaleX(0)}@supports (animation-timeline:scroll()){.scroll-progress{animation:sb-progress linear both;animation-timeline:scroll(root)}@keyframes sb-progress{to{transform:scaleX(1)}}}.site-header.is-top .scroll-progress{opacity:0}.btn{--b:var(--primary);--bt:var(--on-primary);display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 20px;border:0;border-radius:var(--r-md);background:var(--b);color:var(--bt);font-weight:600;font-size:1rem;line-height:1;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .12s var(--ease),background-color .2s,box-shadow .2s,filter .2s}.btn:hover{filter:brightness(1.08)}.btn:active{transform:scale(.97)}.btn svg{width:18px;height:18px;flex:none}.btn-lg{min-height:56px;padding-inline:26px;font-size:1.0625rem}.btn-sm{min-height:40px;padding-inline:14px;font-size:.9375rem}.btn-secondary{--b:var(--surface-muted);--bt:var(--text)}.btn-light{--b:#FFFFFF;--bt:#003C7A}.btn-glass{--b:var(--glass);--bt:var(--on-dark);box-shadow:inset 0 0 0 1px var(--glass-line)}.btn-glass:hover{box-shadow:inset 0 0 0 1px rgba(255,255,255,.5);filter:none}.badge{display:inline-flex;align-items:center;gap:6px;min-height:22px;padding:0 8px;border-radius:6px;background:var(--surface-muted);color:var(--text-muted);font-size:.75rem;font-weight:600;line-height:1.3;white-space:nowrap}.badge-primary{background:color-mix(in srgb,var(--primary) 12%,var(--surface));color:var(--primary)}.badge-streak{background:var(--streak-surface);color:var(--streak)}.badge-success{background:var(--success-surface);color:var(--success)}.site-header{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top,0);background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--border);transition:background-color .25s,border-color .25s}.site-header.is-top{background:transparent;border-bottom-color:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;--text:var(--on-dark);--text-muted:var(--on-dark-muted);--border:var(--glass-line);--surface:var(--glass);--surface-muted:var(--glass);--primary:#FFFFFF;--on-primary:#003C7A;--focus:#FFFFFF}.header-inner{display:flex;align-items:center;gap:20px;min-height:68px;transition:min-height .3s var(--ease)}.site-header:not(.is-top) .header-inner{min-height:60px}.logo{display:inline-flex;align-items:center;gap:8px;text-decoration:none;flex:none}.logo img{display:block;height:40px;width:auto}.logo .wordmark{height:26px}.logo .on-dark,.site-footer.on-navy .logo .on-light,.site-header.is-top .logo .on-light{display:none}.site-header.is-top .logo .on-dark{display:block}.nav{display:flex;gap:2px;margin-left:12px}.nav a{padding:8px 12px;border-radius:var(--r-md);color:var(--text-muted);text-decoration:none;font-weight:600;font-size:var(--fs-sm);white-space:nowrap;transition:color .2s,background-color .2s}.nav a:hover{background:var(--surface-muted);color:var(--text)}.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}.theme-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 12px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--surface);color:var(--text);cursor:pointer;font-weight:600;font-size:var(--fs-sm);transition:transform .12s var(--ease)}.theme-btn:active{transform:scale(.97)}.theme-btn svg{width:18px;height:18px;flex:none}.menu-btn{display:none;width:42px;height:40px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--surface);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px}.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s}.nav-open .menu-btn span:first-child{transform:translateY(6px) rotate(45deg)}.nav-open .menu-btn span:nth-child(2){opacity:0}.nav-open .menu-btn span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .logo .on-light{display:none}:root:not([data-theme=light]) .logo .on-dark{display:block}}:root[data-theme=dark] .logo .on-light{display:none}:root[data-theme=dark] .logo .on-dark{display:block}@media (max-width:1000px){.menu-btn{display:inline-flex}.nav{display:none;position:absolute;left:0;right:0;top:100%;margin:0;flex-direction:column;gap:2px;padding:12px max(20px,env(safe-area-inset-right,0px)) 20px max(20px,env(safe-area-inset-left,0px));background:var(--bg);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}.nav a{padding:12px;font-size:var(--fs-base);color:var(--text)}.nav-open .nav{display:flex}}@media (max-width:560px){.theme-label{display:none}.theme-btn{width:40px;padding:0;justify-content:center}.logo .wordmark{display:none!important}}@media (max-width:380px){.header-actions .btn{display:none}}.hero{position:relative;isolation:isolate;overflow:clip;color:var(--on-dark-muted);background:radial-gradient(40% 50% at 82% 18%,rgba(247,122,12,.16) 0,transparent 70%),radial-gradient(38% 45% at 12% 96%,rgba(37,148,53,.16) 0,transparent 70%),radial-gradient(60% 80% at 74% 55%,var(--hero-bg-2) 0,transparent 72%),var(--hero-bg-1);padding-top:calc(68px + env(safe-area-inset-top, 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minmax(0,1fr);grid-gap:24px;gap:24px;align-items:center;min-height:min(80vh,720px);padding-block:clamp(28px,4vw,56px) clamp(40px,6vw,72px);pointer-events:none}.hero-copy{display:grid;grid-gap:22px;gap:22px;justify-items:start;max-width:600px;pointer-events:auto}.hero-brand{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 8px;border-radius:999px;background:var(--glass);border:1px solid var(--glass-line);color:var(--on-dark);font-size:var(--fs-sm);font-weight:600}.hero-brand i{display:flex;gap:3px}.hero-brand i b{width:7px;height:7px;border-radius:50%}.hero h1{color:var(--on-dark);font-size:var(--fs-hero);font-weight:800;line-height:1.02;letter-spacing:-.03em}.hero h1 .accent{background:linear-gradient(92deg,#FFB36B,#F77A0C);-webkit-background-clip:text;background-clip:text;color:transparent}.lede{max-width:34em;color:var(--on-dark-muted);font-size:clamp(1.1rem,1rem + .35vw,1.25rem);line-height:1.55}.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;padding-top:4px}.hero-pick{display:grid;grid-gap:10px;gap:10px;padding-top:6px}.hero-pick-label{color:var(--on-dark-muted);font-size:var(--fs-sm);font-weight:600}.hero-chips{display:flex;flex-wrap:wrap;gap:8px}.hero-chip{min-width:46px;height:46px;padding:0 10px;border:1px solid var(--glass-line);border-radius:var(--r-md);background:var(--glass);color:var(--on-dark);font-weight:700;font-size:1.15rem;line-height:1;cursor:pointer;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;transition:border-color .2s,background-color .2s,color .2s,transform .12s var(--ease)}.hero-chip:hover{border-color:rgba(255,255,255,.5)}.hero-chip:active{transform:scale(.97)}.hero-chip[aria-pressed=true]{background:var(--c);border-color:var(--c);color:#0B1220}.hero-stage{position:relative;align-self:stretch;min-height:440px;pointer-events:none}.hero-hint{position:absolute;left:50%;bottom:0;transform:translateX(-50%);padding:5px 14px;border-radius:999px;background:var(--glass);border:1px solid var(--glass-line);color:var(--on-dark-muted);font-size:.8125rem;white-space:nowrap}.hero-fallback,.hero.is-static .hero-hint{display:none}.hero.is-static .hero-fallback{position:absolute;inset:0;margin:auto;display:grid;place-content:center;justify-items:center;width:min(280px,70%);aspect-ratio:1;border-radius:50%;border:2px solid var(--holo);color:var(--holo);box-shadow:0 0 60px -10px var(--holo),inset 0 0 50px -16px var(--holo)}.hero-fallback span{font-size:.8rem;font-weight:700;letter-spacing:.3em;text-transform:uppercase}.hero-fallback b{font-size:6rem;font-weight:800;line-height:1}@media (max-width:960px){.hero{background:radial-gradient(60% 40% at 90% 10%,rgba(247,122,12,.16) 0,transparent 70%),radial-gradient(90% 45% at 50% 80%,var(--hero-bg-2) 0,transparent 75%),var(--hero-bg-1)}.hero-grid{grid-template-columns:minmax(0,1fr);min-height:0;gap:4px}.hero-stage{min-height:0;height:min(96vw,420px)}}@media (max-width:560px){.hero-chips{gap:6px}.hero-chip{min-width:40px;height:42px;padding-inline:6px;font-size:1.05rem}.orbit-label{padding:3px 8px 3px 7px;font-size:.7rem}}.strip{border-bottom:1px solid var(--border);background:var(--surface)}.strip-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;margin:0;padding:0}.strip-list li{display:grid;grid-gap:2px;gap:2px;padding:22px 20px;border-left:1px solid var(--border)}.strip-list li:first-child{border-left:0;padding-left:0}.strip-list b{font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:800;letter-spacing:-.02em;line-height:1.1;color:var(--text);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.strip-list span{color:var(--text-muted);font-size:var(--fs-sm)}@media (max-width:760px){.strip-list{grid-template-columns:repeat(2,minmax(0,1fr))}.strip-list li{padding:16px 0 16px 16px}.strip-list li:nth-child(odd){border-left:0;padding-left:0}.strip-list li:nth-child(n+3){border-top:1px solid var(--border)}}.ways{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:16px;gap:16px}.way{display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .2s}.way:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--s) 40%,var(--border))}.way-art{position:relative;display:grid;place-items:center;aspect-ratio:16/10;background:color-mix(in srgb,var(--s) 10%,var(--surface));overflow:hidden}.way-art svg{width:min(62%,180px);height:auto;color:var(--s)}.way-tag{position:absolute;left:12px;top:12px}.way-body{display:grid;grid-gap:8px;gap:8px;align-content:start;flex:1 1;padding:18px 20px 22px}.way h3{font-size:1.2rem}.way-body p{color:var(--text-muted)}.way-body p,.way-link{font-size:var(--fs-sm)}.way-link{margin-top:4px;color:var(--primary);font-weight:600;text-decoration:none}.way-link span{display:inline-block;transition:translate .26s var(--ease)}.way:hover .way-link span{translate:4px 0}@media (max-width:1080px){.ways{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:560px){.ways{grid-template-columns:minmax(0,1fr)}}.class-tabs{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));grid-gap:8px;gap:8px;max-width:780px}.class-tab{display:grid;justify-items:center;grid-gap:2px;gap:2px;padding:10px 2px 8px;border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);color:var(--text);cursor:pointer;transition:transform .12s var(--ease),border-color .2s,background-color .2s,box-shadow .2s}.class-tab span{font-size:.6875rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-subtle);line-height:1}.class-tab b{font-weight:800;font-size:clamp(1.4rem,1.05rem + 1.4vw,2rem);line-height:1.1;color:var(--g);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.class-tab:hover{border-color:var(--g)}.class-tab:active{transform:scale(.97)}.class-tab[aria-selected=true]{background:var(--g);border-color:var(--g);box-shadow:0 8px 20px -10px var(--g)}.class-tab[aria-selected=true] b,.class-tab[aria-selected=true] span{color:var(--surface)}.class-panel{margin-top:28px;padding:clamp(20px,3vw,28px);border:1px solid var(--border);border-radius:var(--r-xl);background:var(--surface);box-shadow:var(--shadow-sm)}.class-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-bottom:22px}.class-head h3{font-size:clamp(1.5rem,1.25rem + 1vw,1.9rem);font-weight:800;line-height:1.1;letter-spacing:-.02em}.class-meta{color:var(--text-muted);font-size:var(--fs-sm)}.class-head .badge{margin-left:auto}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px}.subj{display:flex;flex-direction:column;gap:12px;padding:18px 18px 14px;border:1px solid var(--border);border-radius:var(--r-lg);background:var(--bg);transition:border-color .2s,transform .26s var(--ease),box-shadow .26s var(--ease);animation:card-in .3s var(--ease) both}.subj:hover{border-color:color-mix(in srgb,var(--s) 45%,var(--border));box-shadow:var(--shadow);transform:translateY(-2px)}@keyframes card-in{0%{opacity:0;translate:0 6px}to{opacity:1;translate:0 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b{font-size:.95rem}}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:16px;gap:16px}.feature{display:grid;grid-gap:10px;gap:10px;align-content:start;padding:clamp(22px,3vw,28px);border:1px solid var(--border);border-radius:var(--r-lg);background:var(--bg);transition:transform .26s var(--ease),box-shadow .26s var(--ease)}.feature:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.f-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:var(--r-md);background:color-mix(in srgb,var(--s) 14%,var(--surface));color:var(--s);margin-bottom:6px}.f-icon svg{width:24px;height:24px}.feature h3{font-size:1.18rem}.feature p{color:var(--text-muted);font-size:var(--fs-sm)}.phone{position:relative;flex:none;width:300px;max-width:100%;aspect-ratio:300/620;padding:10px;border-radius:48px;background:#0B1220;box-shadow:inset 0 0 0 1px 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i{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:11px;background:color-mix(in srgb,var(--s) 14%,var(--surface));color:var(--s)}.subj-mini b{font-size:12.5px}.subj-mini small{color:var(--text-muted);font-size:10.5px}.app-bar{display:flex;align-items:center;gap:10px}.back{flex:none;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:17px;line-height:1}.app-bar b{display:block;font-size:14.5px;line-height:1.2}.app-bar small{display:block;font-size:10.5px;color:var(--text-muted)}.player{border-radius:16px;overflow:hidden;background:#0E1A33;border:1px solid var(--border)}.player svg{display:block;width:100%;height:auto}.controls{display:flex;align-items:center;gap:8px;padding:8px 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.h{font-weight:700;color:var(--text-subtle);height:auto}.cal .on{background:var(--streak);color:#fff;font-weight:700}.cal .is-today{box-shadow:inset 0 0 0 1.5px var(--streak);color:var(--streak);font-weight:700}.pair{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px}.pair div{padding:10px;border-radius:14px;background:var(--surface);border:1px solid var(--border)}.pair b{display:block;font-size:18px;font-weight:800}.pair small{color:var(--text-muted);font-size:10.5px}.tour-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);grid-gap:56px;gap:56px;align-items:center}.tour-copy>p{color:var(--text-muted);font-size:var(--fs-md);max-width:52ch;margin-top:14px}.tour-copy h2{margin-top:12px}.tour-tabs{display:grid;grid-gap:6px;gap:6px;margin-top:28px}.tour-tab{display:grid;grid-template-columns:44px minmax(0,1fr);grid-gap:14px;gap:14px;align-items:center;padding:12px 16px 12px 12px;border:1px solid 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.tt-icon{background:var(--s);color:#FFFFFF}.tour-title{display:block;font-weight:700;font-size:1.08rem;color:var(--text);line-height:1.25}.tour-desc{display:block;color:var(--text-muted);font-size:var(--fs-sm);line-height:1.45}.tour-stage{display:grid;justify-items:center;grid-gap:16px;gap:16px}.tour-caption{display:none;max-width:34ch;text-align:center;color:var(--text-muted)}@media (max-width:900px){.tour-grid{grid-template-columns:minmax(0,1fr);gap:32px}.tour-tabs{display:flex;flex-wrap:wrap;gap:8px}.tour-tab{grid-template-columns:auto;padding:8px 16px;border-color:var(--border);border-radius:999px;background:var(--surface)}.tour-tab .tour-desc,.tour-tab .tt-icon{display:none}.tour-tab .tour-title{font-size:.95rem}.tour-tab[aria-selected=true]{background:var(--primary);border-color:var(--primary);box-shadow:none}.tour-tab[aria-selected=true] .tour-title{color:var(--on-primary)}.tour-caption{display:block}}.quiz-grid{display:grid;grid-template-columns:minmax(0,5fr) 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.btn{margin-left:auto}}.blog-title{font-size:var(--fs-2xl);font-weight:800;line-height:1.08;letter-spacing:-.022em}.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:20px;gap:20px;margin-top:20px}.post-card{border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);overflow:hidden;transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .2s}.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--s) 40%,var(--border))}.post-card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}.post-card.is-featured .post-card-link{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}.post-card-body{display:grid;grid-gap:10px;gap:10px;align-content:start;padding:20px 22px 24px}.post-card.is-featured .post-card-body{padding:clamp(24px,3vw,40px);align-content:center}.post-card h3{font-size:1.18rem;line-height:1.3}.post-card.is-featured h3{font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:800;letter-spacing:-.02em}.post-excerpt{color:var(--text-muted);font-size:var(--fs-sm)}.post-more{color:var(--primary);font-weight:600;font-size:var(--fs-sm)}.post-more span{display:inline-block;transition:translate .26s var(--ease)}.post-card:hover .post-more span{translate:4px 0}.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--text-muted);font-size:.8125rem}.post-tag{display:inline-flex;align-items:center;min-height:22px;padding:0 8px;border-radius:6px;background:color-mix(in srgb,var(--s) 14%,var(--surface));color:var(--s);font-weight:700}.post-cover{position:relative;display:grid;place-items:center;aspect-ratio:16/9;overflow:hidden;color:#FFFFFF;background:radial-gradient(70% 90% at 85% 10%,color-mix(in srgb,var(--s) 55%,#FFFFFF 0%) 0,transparent 60%),linear-gradient(135deg,color-mix(in srgb,var(--s) 85%,#021632) 0,#021632 100%)}.post-cover:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 0),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 0);background-size:28px 28px}.post-cover-glyph{position:relative;z-index:1;font-size:clamp(1.8rem,1.2rem + 2vw,3rem);font-weight:800;letter-spacing:-.02em;text-shadow:0 6px 30px rgba(0,0,0,.35)}.post-cover.is-large{aspect-ratio:16/8;border-radius:0}.post .post-cover.is-large{border-radius:var(--r-xl);max-width:900px;margin:0 auto}.post-cover.is-large .post-cover-glyph{font-size:clamp(2.4rem,1.6rem + 3vw,4.4rem)}.post{padding-top:clamp(28px,4vw,56px)}.post-header{max-width:900px;display:grid;grid-gap:14px;gap:14px;margin-bottom:28px}.post-back{color:var(--primary);font-weight:600;text-decoration:none;font-size:var(--fs-sm)}.post-header h1{font-size:clamp(2rem,1.4rem + 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