:root{--stone-50: oklch(.985 .003 80);--stone-100: oklch(.965 .004 80);--stone-150: oklch(.945 .004 80);--stone-200: oklch(.918 .005 80);--stone-300: oklch(.86 .006 80);--stone-400: oklch(.72 .008 80);--stone-500: oklch(.58 .008 80);--stone-600: oklch(.48 .008 80);--stone-700: oklch(.38 .008 80);--stone-800: oklch(.27 .008 80);--stone-900: oklch(.2 .008 80);--stone-950: oklch(.14 .008 80);--green-50: oklch(.965 .018 155);--green-100: oklch(.93 .03 155);--green-200: oklch(.86 .045 155);--green-300: oklch(.76 .055 155);--green-500: oklch(.55 .075 155);--green-600: oklch(.46 .075 155);--green-700: oklch(.38 .065 155);--green-800: oklch(.3 .05 155);--green-900: oklch(.22 .035 155);--amber-100: oklch(.95 .04 75);--amber-200: oklch(.88 .06 75);--amber-600: oklch(.62 .1 60);--amber-700: oklch(.52 .09 55);--bg: var(--stone-50);--bg-elev: #ffffff;--bg-sunk: var(--stone-100);--fg: var(--stone-950);--fg-muted: var(--stone-500);--fg-subtle: var(--stone-400);--border: var(--stone-200);--border-strong:var(--stone-300);--primary: var(--stone-900);--primary-hover:var(--stone-800);--primary-fg: var(--stone-50);--accent: var(--green-700);--accent-bg: var(--green-50);--ring: oklch(.55 .075 155 / .25);--sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;--mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--serif: var(--sans);--r-xs: 3px;--r-sm: 4px;--r-md: 6px;--r-lg: 8px;--r-xl: 12px;--shadow-xs: 0 1px 1px rgba(20, 20, 20, .04);--shadow-sm: 0 1px 2px rgba(20, 20, 20, .05);--shadow-md: 0 2px 4px rgba(20, 20, 20, .06), 0 1px 2px rgba(20, 20, 20, .04);--shadow-lg: 0 8px 24px rgba(20, 20, 20, .08);--surface-inverse: oklch(.14 .008 80);--surface-inverse-elev: oklch(.18 .007 80);--surface-inverse-border: oklch(.26 .007 80);--text-inverse: oklch(.985 .004 80);--text-inverse-muted: oklch(.62 .008 80);--text-inverse-subtle: oklch(.48 .008 80);--container: 1180px;--cream-50: var(--bg-elev);--cream-100: var(--stone-50);--cream-200: var(--stone-100);--cream-300: var(--stone-200);--cream-400: var(--stone-300);--ink-900: var(--stone-950);--ink-800: var(--stone-900);--ink-700: var(--stone-700);--ink-600: var(--stone-600);--ink-500: var(--stone-500);--ink-400: var(--stone-400);--ink-300: var(--stone-300);--terra-700: var(--amber-700);--terra-600: var(--amber-600);--terra-500: var(--amber-600);--terra-200: var(--amber-200);--terra-100: var(--amber-100);--ocre-600: var(--amber-600);--ocre-500: var(--amber-600);--ocre-200: var(--amber-200);--green-400: var(--green-300)}:root[data-theme=dark]{color-scheme:dark;--stone-50: oklch(.18 .006 80);--stone-100: oklch(.22 .006 80);--stone-150: oklch(.245 .006 80);--stone-200: oklch(.27 .007 80);--stone-300: oklch(.34 .008 80);--stone-400: oklch(.48 .008 80);--stone-500: oklch(.62 .008 80);--stone-600: oklch(.72 .008 80);--stone-700: oklch(.8 .008 80);--stone-800: oklch(.88 .008 80);--stone-900: oklch(.94 .006 80);--stone-950: oklch(.985 .004 80);--green-50: oklch(.25 .04 155);--green-100: oklch(.3 .05 155);--green-200: oklch(.35 .06 155);--green-300: oklch(.5 .06 155);--green-500: oklch(.65 .07 155);--green-600: oklch(.72 .075 155);--green-700: oklch(.78 .075 155);--green-800: oklch(.85 .06 155);--green-900: oklch(.92 .04 155);--amber-100: oklch(.32 .05 60);--amber-200: oklch(.4 .07 60);--amber-600: oklch(.75 .1 70);--amber-700: oklch(.82 .09 72);--bg: oklch(.12 .005 80);--bg-elev: oklch(.16 .006 80);--bg-sunk: oklch(.1 .005 80);--fg: oklch(.97 .004 80);--fg-muted: oklch(.65 .008 80);--fg-subtle: oklch(.48 .008 80);--border: oklch(.26 .007 80);--border-strong: oklch(.34 .008 80);--primary: oklch(.97 .004 80);--primary-hover: oklch(.92 .005 80);--primary-fg: oklch(.12 .005 80);--accent: var(--green-700);--accent-bg: var(--green-50);--ring: oklch(.65 .08 155 / .35);--shadow-xs: 0 1px 1px rgba(0, 0, 0, .3);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 2px 6px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 28px rgba(0, 0, 0, .45)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--sans);font-feature-settings:"cv11","ss01","ss03";font-size:14px;line-height:1.55;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5{font-family:var(--sans);font-weight:600;letter-spacing:-.015em;color:var(--fg);margin:0;text-wrap:balance}h1{font-size:40px;line-height:1.1;letter-spacing:-.025em;font-weight:600}h2{font-size:30px;line-height:1.15;letter-spacing:-.022em;font-weight:600}h3{font-size:20px;line-height:1.25;font-weight:600}h4{font-size:16px;line-height:1.35;font-weight:600;letter-spacing:-.005em}h5{font-size:13px;line-height:1.4;font-weight:600}p{margin:0;text-wrap:pretty}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}.container{max-width:var(--container);margin:0 auto;padding:0 28px}.muted{color:var(--fg-muted)}.subtle{color:var(--fg-subtle)}.mono{font-family:var(--mono);font-size:.88em}.serif{font-family:var(--sans);font-weight:600}.eyebrow{font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-muted)}::selection{background:var(--green-100);color:var(--stone-950)}input,select,textarea{color:var(--fg)}:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--ring);border-radius:var(--r-md)}.btn{display:inline-flex;align-items:center;gap:8px;padding:0 14px;height:36px;border-radius:var(--r-md);font-weight:500;font-size:13.5px;transition:background .1s,color .1s,border-color .1s,opacity .1s;border:1px solid transparent;cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--stone-900);color:var(--stone-50)}.btn-primary:hover:not(:disabled){background:var(--stone-800)}.btn-secondary{background:var(--bg-elev);color:var(--fg);border-color:var(--border)}.btn-secondary:hover:not(:disabled){background:var(--stone-100);border-color:var(--border-strong)}.btn-ghost{background:transparent;color:var(--fg)}.btn-ghost:hover:not(:disabled){background:var(--stone-100)}.btn-accent{background:var(--green-700);color:var(--stone-50)}.btn-accent:hover:not(:disabled){background:var(--green-800)}.btn-terra{background:var(--amber-700);color:var(--stone-50)}.btn-terra:hover:not(:disabled){background:var(--amber-600)}.btn-lg{height:42px;padding:0 18px;font-size:14px}.btn-sm{height:30px;padding:0 10px;font-size:12.5px;border-radius:var(--r-sm)}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg)}.card-padded{padding:20px}.input,.select,.textarea{width:100%;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-md);padding:0 12px;height:36px;font:inherit;font-size:13.5px;color:var(--fg);transition:border-color .1s,box-shadow .1s}.textarea{padding:10px 12px;height:auto;min-height:80px}.select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2378716c' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='M4 6l4 4 4-4'/></svg>");background-repeat:no-repeat;background-position:right 10px center;padding-right:32px}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--stone-400);box-shadow:0 0 0 3px var(--ring)}.label{display:block;font-size:12.5px;font-weight:500;color:var(--fg);margin-bottom:6px}.hint{font-size:12px;color:var(--fg-muted);margin-top:6px}.badge{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:500;padding:2px 8px;border-radius:999px;background:var(--stone-100);color:var(--stone-800);border:1px solid var(--border);white-space:nowrap}.badge-accent{background:var(--green-50);color:var(--green-800);border-color:var(--green-200)}.badge-terra{background:var(--amber-100);color:var(--amber-700);border-color:var(--amber-200)}.badge-neutral{background:var(--stone-100);color:var(--stone-700);border-color:var(--border)}.badge-solid{background:var(--stone-900);color:var(--stone-50);border-color:var(--stone-900)}.badge-outline{background:transparent}.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:6px 12px;border-radius:var(--r-md);background:var(--bg-elev);border:1px solid var(--border);cursor:pointer;transition:all .1s;color:var(--fg)}.chip:hover{border-color:var(--border-strong);background:var(--stone-100)}.chip[data-active=true]{background:var(--stone-900);color:var(--stone-50);border-color:var(--stone-900)}.section{padding:72px 0}.section-sm{padding:40px 0}.divider{height:1px;background:var(--border);width:100%}.ph-img{position:relative;background:repeating-linear-gradient(135deg,var(--stone-100) 0 8px,var(--stone-150) 8px 16px);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center}.ph-img>span{font-family:var(--mono);font-size:11px;color:var(--stone-600);background:var(--bg-elev);padding:4px 8px;border-radius:4px;border:1px solid var(--border);max-width:80%}.bordered{border:1px solid var(--border);border-radius:var(--r-lg)}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:400px 0}}.shimmer{background:linear-gradient(90deg,var(--stone-100) 0%,var(--stone-200) 50%,var(--stone-100) 100%);background-size:600px 100%;animation:shimmer 1.4s infinite linear;border-radius:var(--r-sm)}.app-grid{display:grid;grid-template-columns:232px 1fr;min-height:100vh}.app-sidebar{background:var(--stone-100);border-right:1px solid var(--border);padding:18px 14px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:4px}.nav-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--r-md);color:var(--stone-700);font-size:13.5px;font-weight:500;cursor:pointer;transition:background 80ms,color 80ms}.nav-item:hover{background:var(--stone-200);color:var(--stone-950)}.nav-item[data-active=true]{background:var(--bg-elev);color:var(--stone-950);box-shadow:var(--shadow-xs)}.nav-item[data-active=true] svg{color:var(--green-700)}.app-main{padding:28px 32px 64px}.app-main-narrow{max-width:880px;margin:0 auto}.app-main-wide{max-width:1180px;margin:0 auto}.menu-item{width:100%;display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:var(--r-sm);font-size:13px;color:var(--fg);text-align:left;transition:background 80ms;cursor:pointer;background:transparent}.menu-item:hover{background:var(--stone-100)}.stack{display:flex;flex-direction:column}.row{display:flex;align-items:center}@media print{body{background:#fff}}.site-nav{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--border)}.site-nav .row{gap:24px;padding:12px 0}.wordmark{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-weight:600;font-size:14px;letter-spacing:-.015em;color:var(--fg)}.wordmark-dot{width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;background:var(--stone-900);color:var(--stone-50);border-radius:4px;font-family:var(--mono);font-weight:600;font-size:11px;line-height:1}.wordmark .wdomain{color:var(--fg-muted);font-weight:500;font-family:var(--mono);font-size:12.5px}.site-nav a.nav-link{font-size:13.5px;color:var(--fg-muted);padding:6px 10px;border-radius:6px;font-weight:500}.site-nav a.nav-link:hover{color:var(--fg);background:var(--stone-100)}.site-nav a.nav-link[data-active=true]{color:var(--fg);background:var(--stone-150)}.hero{padding-top:72px;padding-bottom:56px;position:relative}.hero h1{font-size:56px;line-height:1.05;letter-spacing:-.03em;font-weight:600;max-width:18ch}.hero h1 em{font-style:normal;color:var(--green-700);font-weight:600}.hero-sub{font-size:17px;color:var(--fg-muted);max-width:58ch;margin-top:22px;line-height:1.5}.hero-cta{display:flex;gap:10px;margin-top:32px}.hero-meta{display:flex;gap:28px;margin-top:40px;border-top:1px solid var(--border);padding-top:24px;font-size:12.5px;color:var(--fg-muted)}.hero-meta b{color:var(--fg);font-weight:600;display:block;font-size:14px;margin-bottom:2px}.section-head{max-width:720px;margin-bottom:40px}.section-head h2{font-size:36px;line-height:1.1;letter-spacing:-.022em;font-weight:600}.section-head h2 em{color:var(--green-700);font-style:normal}.section-head p{font-size:16px;color:var(--fg-muted);margin-top:16px;max-width:60ch;line-height:1.55}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.step{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px}.step-num{font-family:var(--mono);font-size:12px;font-weight:500;color:var(--green-700);display:inline-flex;align-items:center;gap:8px;padding:4px 10px;background:var(--green-50);border:1px solid var(--green-200);border-radius:999px}.step h3{margin:14px 0 6px;font-size:17px;font-weight:600}.step p{color:var(--fg-muted);font-size:14px}.site-foot{background:var(--surface-inverse);color:var(--text-inverse-muted);padding:56px 0 28px;margin-top:80px}.site-foot .wordmark{color:var(--text-inverse)}.site-foot .wordmark-dot{background:var(--text-inverse);color:var(--surface-inverse)}.site-foot .wordmark .wdomain{color:var(--text-inverse-subtle)}.site-foot h5{color:var(--text-inverse);font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin:0 0 12px}.site-foot a{color:var(--text-inverse-muted);display:block;padding:4px 0;font-size:13px}.site-foot a:hover{color:var(--text-inverse)}.site-foot .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}.site-foot .legal{margin-top:48px;padding-top:20px;border-top:1px solid var(--surface-inverse-border);display:flex;justify-content:space-between;font-size:12px;color:var(--text-inverse-subtle)}.plan-preview{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);overflow:hidden}.plan-preview .pp-head{padding:14px 18px;background:var(--stone-100);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:12px}.plan-preview .pp-head h4{font-size:15px;font-weight:600}.plan-preview .pp-body{padding:18px}.plan-block{border:1px solid var(--border);border-radius:var(--r-md);padding:12px 14px;margin-bottom:8px;background:var(--bg-elev)}.plan-block .pb-label{font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--green-700);font-weight:600}.plan-block h5{margin:4px 0;font-size:14px;font-weight:600;color:var(--fg)}.plan-block p{font-size:12.5px;color:var(--fg-muted)}.quote{font-size:22px;line-height:1.4;font-weight:500;letter-spacing:-.015em;color:var(--fg)}.quote-author{margin-top:16px;font-size:13px;color:var(--fg-muted)}.quote-author b{color:var(--fg);font-weight:600}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat .num{font-size:42px;line-height:1;font-weight:600;color:var(--fg);letter-spacing:-.03em}.stat .lbl{color:var(--fg-muted);font-size:13px;margin-top:8px;max-width:22ch}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}.two-col-72{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature{border-top:1px solid var(--fg);padding-top:14px}.feature h4{font-size:14.5px;font-weight:600;margin-bottom:6px}.feature p{color:var(--fg-muted);font-size:13.5px}.pill-list{display:flex;flex-wrap:wrap;gap:6px}.aula-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.level-card{position:relative;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg);padding:14px 12px;text-align:center;transition:border-color .1s,box-shadow .1s}.level-card[data-has-students=true]{border-color:var(--stone-900);box-shadow:0 0 0 1px var(--stone-900)}.level-card .level-label{font-size:18px;color:var(--fg);font-weight:600}.level-card .level-sub{font-size:10.5px;color:var(--fg-muted);text-transform:uppercase;letter-spacing:.06em;margin-top:2px}.level-card .count{font-size:40px;line-height:1;font-weight:600;color:var(--stone-900);letter-spacing:-.025em;display:block;margin:12px 0 4px}.level-card[data-has-students=false] .count{color:var(--stone-300)}.level-card .count-controls{display:flex;gap:6px;justify-content:center;margin-top:4px}.count-btn{width:26px;height:26px;border-radius:var(--r-sm);border:1px solid var(--border);background:var(--bg-elev);font-size:14px;color:var(--fg);display:inline-flex;align-items:center;justify-content:center;transition:background 80ms,border-color 80ms}.count-btn:hover{background:var(--stone-100);border-color:var(--border-strong)}.count-btn:disabled{color:var(--stone-300);cursor:not-allowed}.student-dots{display:flex;gap:3px;justify-content:center;flex-wrap:wrap;min-height:8px;margin-top:4px}.student-dot{width:6px;height:6px;border-radius:999px;background:var(--stone-900)}.composition-summary{background:var(--stone-100);border:1px solid var(--border);color:var(--fg);border-radius:var(--r-lg);padding:14px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px}.composition-summary .ctotal{font-size:24px;font-weight:600;letter-spacing:-.02em}.eje-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.eje-card{padding:16px 14px;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg);cursor:pointer;transition:all .1s;text-align:left;position:relative}.eje-card:hover{border-color:var(--border-strong);background:var(--stone-50)}.eje-card[data-selected=true]{background:var(--stone-900);color:var(--stone-50);border-color:var(--stone-900)}.eje-card[data-selected=true] h4{color:var(--stone-50)}.eje-card[data-selected=true] p{color:var(--stone-300)}.eje-card[data-selected=true] .eje-code{color:var(--stone-400)}.eje-card[data-selected=true] svg{color:var(--stone-50)}.eje-card h4{font-size:15px;font-weight:600;margin:8px 0 4px}.eje-card .eje-code{font-family:var(--mono);font-size:11px;color:var(--fg-muted);letter-spacing:.04em}.eje-card p{font-size:12.5px;line-height:1.45;color:var(--fg-muted)}.oa-row{display:grid;grid-template-columns:80px 1fr auto;gap:14px;align-items:start;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg-elev);cursor:pointer;transition:border-color .1s,background .1s;text-align:left}.oa-row:hover{border-color:var(--border-strong);background:var(--stone-50)}.oa-row[data-selected=true]{border-color:var(--stone-900);box-shadow:inset 3px 0 0 var(--stone-900);background:var(--stone-50)}.oa-code{font-family:var(--mono);font-size:11.5px;color:var(--green-700);font-weight:500}.oa-text{font-size:13.5px;color:var(--fg);line-height:1.5}.oa-niveles{display:flex;gap:4px}.plan-hero{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px 28px;display:flex;gap:28px;align-items:center;justify-content:space-between;position:relative;overflow:hidden}.plan-hero .ph-meta{display:flex;gap:24px;flex-wrap:wrap}.plan-hero .ph-meta 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