/* Altas Notas - pizarrón green, chalk white, teacher's red pen */
:root{
  --ink:#10261e;--ink-2:#173a2e;--ink-3:#21493b;
  --chalk:#f4f6f0;--chalk-mut:#b9c9bf;
  --paper:#f7f9f6;--tint:#e9f0eb;--line:#d6e0d9;
  --text:#14201b;--muted:#4b5a52;
  --red:#cf2a23;--red-d:#a91f19;--hi:#ffd84d;
  --r:16px;--r-s:10px;
  --f-d:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --f-b:"Figtree",ui-sans-serif,system-ui,sans-serif;
  --f-h:"Kalam","Comic Sans MS",cursive;
  --hdr:72px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.rm html,html.rm{scroll-behavior:auto}
body{margin:0;font-family:var(--f-b);font-size:17px;line-height:1.6;color:var(--text);background:var(--paper)}
img,svg,video{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--f-d);line-height:1.08;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.3rem,5.6vw,4.4rem);font-weight:800}
h2{font-size:clamp(1.75rem,3.4vw,2.7rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--hi);color:var(--ink);padding:10px 16px;border-radius:8px;z-index:200;font-weight:700}
.skip:focus{left:12px}
:focus-visible{outline:3px solid var(--hi);outline-offset:3px;border-radius:6px}
.eyebrow{font-size:.74rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--red-d);margin:0 0 .8em}
.eyebrow-chalk{color:var(--hi)}
.muted{color:var(--muted)}
.muted-chalk{color:var(--chalk-mut)}
.small{font-size:.88rem}

/* buttons: firm, colour-only hover */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:999px;font:700 1rem/1 var(--f-b);text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.btn svg{width:20px;height:20px;flex:0 0 auto}
.btn-lg{min-height:56px;padding:14px 28px;font-size:1.05rem}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d)}
.btn-wa{background:var(--ink);color:var(--chalk)}
.btn-wa:hover{background:var(--ink-3)}
.btn-ink{background:var(--ink);color:var(--chalk)}
.btn-ink:hover{background:var(--ink-3)}
.btn-ghost-chalk{border-color:rgba(244,246,240,.55);color:var(--chalk);background:transparent}
.btn-ghost-chalk:hover{background:rgba(244,246,240,.1);border-color:var(--chalk)}

/* header */
.hdr{position:sticky;top:0;z-index:60;background:rgba(247,249,246,.94);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:24px;height:var(--hdr)}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.logo-mark svg{width:46px;height:46px}
.logo-word{font:800 1.45rem/1 var(--f-d);letter-spacing:-.03em}
.logo-word b{color:var(--red);font-weight:800}
.logo-light{color:var(--chalk)}
.logo-light .logo-word b{color:#ff6b62}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav>a,.dd-btn{font:600 .98rem/1 var(--f-b);color:var(--text);text-decoration:none;padding:10px 12px;border-radius:8px;background:none;border:0;cursor:pointer}
.nav>a:hover,.dd-btn:hover,.nav>a[aria-current]{color:var(--red-d)}
.nav>a[aria-current]{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px}
.dd{position:relative}
.dd-btn::after{content:"";display:inline-block;width:7px;height:7px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-2px,-2px);margin-left:8px}
.dd-menu{position:absolute;top:calc(100% + 8px);left:-8px;min-width:280px;list-style:none;margin:0;padding:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:0 18px 40px rgba(16,38,30,.14);display:none}
.dd.open .dd-menu,.dd:focus-within .dd-menu{display:block}
@media (hover:hover){.dd:hover .dd-menu{display:block}}
.dd-menu a{display:block;padding:10px 12px;border-radius:8px;text-decoration:none;font-weight:600}
.dd-menu a:hover{background:var(--tint);color:var(--red-d)}
.burger{display:none;margin-left:auto;width:48px;height:48px;border:0;background:var(--ink);border-radius:12px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:22px;height:2px;background:var(--chalk);border-radius:2px;transition:transform .2s,opacity .2s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mnav{background:var(--paper);border-top:1px solid var(--line);padding:18px 24px 28px;max-height:calc(100vh - var(--hdr));overflow:auto}
.mnav ul{list-style:none;margin:0 0 14px;padding:0}
.mnav a{display:block;padding:12px 0;font-weight:700;font-size:1.08rem;text-decoration:none;border-bottom:1px solid var(--line)}
.mnav-main a{font-family:var(--f-d);font-size:1.3rem}

/* hero */
.hero{position:relative;min-height:min(88vh,820px);display:flex;align-items:center;color:var(--chalk);background:var(--ink);overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-1}
.hero-video{width:100%;height:100%;object-fit:cover;object-position:72% 40%;background:var(--ink)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,38,30,.95) 0%,rgba(16,38,30,.84) 38%,rgba(16,38,30,.25) 68%,rgba(16,38,30,.08) 100%)}
.board{position:absolute;inset:0;background:radial-gradient(120% 90% at 70% 40%,#21493b 0%,#14302a 55%,#0d211a 100%)}
.board::after{content:"";position:absolute;inset:0;opacity:.18;background-image:radial-gradient(rgba(255,255,255,.35) .6px,transparent .7px);background-size:5px 5px}
.board-svg{position:absolute;inset:0;width:100%;height:100%}
.board-svg text{font-family:var(--f-h);font-size:34px;fill:#e9eee6;stroke:none;opacity:.0}
.board-svg .ten{font-size:76px;fill:#e3342f;font-family:var(--f-h)}
.js .board-svg .t{animation:write 1.4s ease forwards}
.board-svg .t1{animation-delay:.2s!important}.board-svg .t2{animation-delay:.9s!important}.board-svg .t3{animation-delay:1.6s!important}
.board-svg .t4{animation-delay:2.3s!important}.board-svg .t5{animation-delay:3s!important}.board-svg .t6{animation-delay:3.7s!important}.board-svg .t7{animation-delay:4.4s!important}
@keyframes write{from{opacity:0;transform:translateY(6px)}to{opacity:.5;transform:none}}
.board-svg .w{stroke-dasharray:900;stroke-dashoffset:900;opacity:.5}
.js .board-svg .w{animation:draw 2.4s ease forwards}
.board-svg .w2{animation-delay:2s!important}.board-svg .w3{animation-delay:2.6s!important}.board-svg .w4{animation-delay:5s!important;opacity:1}
.board-svg .redpen{opacity:0;animation:pop .6s ease 5s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{to{opacity:1}}
html:not(.js) .board-svg text,.rm .board-svg text{opacity:.5}
.rm .board-svg *{animation:none!important;stroke-dashoffset:0!important}
.rm .board-svg .redpen{opacity:1}
.hero-in{padding:72px 24px 84px}
.hero h1{max-width:15ch}
.ten-red{position:relative;color:#ff6b62;white-space:nowrap;margin:0 .2em}
.ten-red::after{content:"";position:absolute;inset:-.1em -.28em -.05em;border:4px solid #ff6b62;border-radius:50%;transform:rotate(-8deg)}
.rot{display:inline-block;color:var(--hi);transition:opacity .35s,transform .35s}
.rot.out{opacity:0;transform:translateY(10px)}
.hero-sub{font-size:clamp(1.05rem,1.6vw,1.25rem);max-width:58ch;color:#dbe5de}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 36px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 36px;list-style:none;margin:0;padding:22px 0 0;border-top:1px solid rgba(244,246,240,.18)}
.hero-facts b{display:block;font:800 1.6rem/1.1 var(--f-d);color:var(--chalk)}
.hero-facts span{font-size:.9rem;color:var(--chalk-mut)}

/* page hero */
.phero{background:var(--ink);color:var(--chalk);padding:64px 0 70px;position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;opacity:.14;background-image:radial-gradient(rgba(255,255,255,.4) .6px,transparent .7px);background-size:5px 5px;pointer-events:none}
.phero .wrap{position:relative}
.phero-sm{padding:48px 0 40px}
.phero-in{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:center}
.phero h1{font-size:clamp(2.1rem,4.6vw,3.6rem);max-width:20ch}
.phero-card{background:var(--ink-2);border:1px solid rgba(244,246,240,.14);border-radius:var(--r);padding:26px 28px}
.phero-card p{margin:0 0 12px}
.phero-card.light{background:#fff;border-color:var(--line);color:var(--text);margin-bottom:18px}
.note-k{font-size:.72rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--hi);margin:0 0 4px!important}
.light .note-k{color:var(--red-d)}
.dist-num{font:800 4.4rem/1 var(--f-d);color:var(--chalk);margin:6px 0 8px!important}
.dist-num small{font-size:1.4rem;color:var(--chalk-mut)}
.crumbs{background:var(--ink);color:var(--chalk-mut);font-size:.88rem;padding:14px 0 0}
.crumbs a{color:var(--chalk);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.crumbs [aria-current]{color:var(--chalk-mut)}

/* sections */
.sec{padding:96px 0}
.sec-tint{background:var(--tint)}
.sec-board{background:var(--ink);color:var(--chalk)}
.sec-hd{margin-bottom:44px;max-width:780px}
.sec-hd-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:none;align-items:end}
.split{display:grid;grid-template-columns:1fr 1.25fr;gap:64px;align-items:start}

/* subject cards: varied, not identical tiles */
.cards{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.card{grid-column:span 2;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;text-decoration:none;transition:border-color .2s,box-shadow .2s}
.card:nth-child(1),.card:nth-child(2){grid-column:span 3}
.card:nth-child(1){background:var(--ink);color:var(--chalk);border-color:var(--ink)}
.card:nth-child(1) p{color:#cbd8d0}
.card:nth-child(1) .card-tag{color:var(--hi)}
.card:hover{border-color:var(--red);box-shadow:0 12px 30px rgba(16,38,30,.1)}
.card-tag{font-size:.72rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--red-d);margin-bottom:12px}
.card h3{font-size:1.35rem}
.card p{color:var(--muted);font-size:.97rem;flex:1}
.card-go{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--red-d)}
.card:nth-child(1) .card-go{color:#ff8a83}
.card-go svg{width:18px;height:18px}

/* planner */
.planner{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 24px}
.pills button{min-height:46px;padding:10px 18px;border-radius:999px;border:2px solid var(--ink);background:transparent;color:var(--ink);font:700 .96rem/1 var(--f-b);cursor:pointer;transition:background-color .2s,color .2s}
.pills button[aria-checked=true]{background:var(--ink);color:var(--chalk)}
.pills button:hover{background:rgba(16,38,30,.08)}
.pills button[aria-checked=true]:hover{background:var(--ink-3)}
.planner-q{font-weight:700;margin-bottom:10px}
.note-card{position:relative;background:#fff;border-radius:var(--r);padding:34px;box-shadow:0 24px 60px rgba(16,38,30,.14);border-top:8px solid var(--red)}
.note-card::before{content:"10";position:absolute;right:22px;top:14px;font:700 2.6rem/1 var(--f-h);color:var(--red);transform:rotate(-8deg)}
.note-card .note-k{color:var(--red-d)}
.note-card h3{font-size:1.55rem;max-width:18ch}
.note-price{font:800 1.3rem/1.2 var(--f-d);color:var(--ink)}
.note-link{display:inline-flex;align-items:center;gap:6px;margin-left:14px;font-weight:700;color:var(--ink)}
.note-link svg{width:18px;height:18px}
.note-card [data-o]{transition:opacity .25s}
.note-card.swap [data-o]{opacity:.25}

/* method */
.method{display:grid;grid-template-columns:1fr 1.5fr;gap:64px}
.quote-chalk{font:700 3.4rem/1 var(--f-h);color:var(--red);transform:rotate(-4deg);margin-top:24px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.steps li:nth-child(2){transform:translateY(28px)}
.steps li:nth-child(4){transform:translateY(28px)}
.step-n{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--hi);font:800 1.1rem/1 var(--f-d);margin-bottom:14px}
.steps p{color:var(--muted);margin:0}

/* prices */
.prices{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;align-items:stretch}
.price{position:relative;background:var(--ink-2);border:1px solid rgba(244,246,240,.15);border-radius:var(--r);padding:30px;display:flex;flex-direction:column}
.price-hot{background:var(--chalk);color:var(--text);border-color:var(--chalk)}
.price-flag{position:absolute;top:-14px;left:28px;background:var(--red);color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;padding:6px 12px;border-radius:999px;margin:0}
.price-name{font-weight:700;font-size:1.05rem;margin-bottom:6px}
.price-num{font:800 2.8rem/1 var(--f-d);letter-spacing:-.03em;margin-bottom:8px}
.price-num small{font:600 1rem var(--f-b);opacity:.75;margin-left:6px;letter-spacing:0}
.price-total{font-weight:600;color:var(--muted)}
.price-total b{color:var(--red-d)}
.price ul{list-style:none;padding:0;margin:10px 0 24px;flex:1}
.price li{padding:8px 0 8px 26px;position:relative;border-top:1px solid rgba(127,140,133,.25)}
.price li::before{content:"";position:absolute;left:4px;top:15px;width:10px;height:6px;border:solid var(--hi);border-width:0 0 2.5px 2.5px;transform:rotate(-45deg)}
.price-hot li::before{border-color:var(--red)}
.price .btn{align-self:flex-start}
.calc-l{display:flex;justify-content:space-between;font-weight:600;margin:6px 0 10px;color:#dbe5de}
.calc-l output{font:800 1.4rem/1 var(--f-d);color:var(--hi)}
.calc input[type=range]{width:100%;accent-color:var(--red);height:32px}
.calc-rows p{display:flex;justify-content:space-between;margin:0;padding:10px 0;border-top:1px solid rgba(244,246,240,.15)}
.calc-rows b{font:700 1.1rem/1.3 var(--f-d)}
.calc-save b{color:var(--hi)}
.calc-note{font-size:.9rem;color:var(--chalk-mut);margin:12px 0 0}

/* chips, lists */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 28px}
.chips a{display:inline-flex;align-items:baseline;gap:6px;padding:9px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:600;transition:border-color .2s,color .2s}
.chips a:hover{border-color:var(--red);color:var(--red-d)}
.chips small{color:var(--muted);font-weight:500}
.zone-list{list-style:none;margin:0 0 18px;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px}
.zone-list a,.list-links a{display:grid;grid-template-columns:1fr auto;gap:2px 12px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-s);text-decoration:none;transition:border-color .2s}
.zone-list a:hover,.list-links a:hover{border-color:var(--red)}
.zone-list b,.list-links b{font-family:var(--f-d);font-size:1.12rem}
.zone-list span,.list-links span{grid-column:1;color:var(--muted);font-size:.9rem}
.zone-list em{grid-row:1/3;grid-column:2;align-self:center;font:700 1rem var(--f-d);font-style:normal;color:var(--red-d)}
.list-links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.points{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--ink)}
.points li{padding:28px 28px 28px 0;border-bottom:1px solid var(--line)}
.points li:nth-child(3n+2),.points li:nth-child(3n){padding-left:28px;border-left:1px solid var(--line)}
.points p{color:var(--muted);margin:0}
.near{margin-top:30px;color:var(--muted)}
.near a{color:var(--text);font-weight:600}

/* faq */
.qas{border-top:2px solid var(--ink)}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:20px 44px 20px 0;font:700 1.1rem/1.35 var(--f-d);position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:6px;top:14px;font:700 1.8rem/1 var(--f-b);color:var(--red)}
.qa[open] summary::after{content:"−"}
.qa p{color:var(--muted);padding-right:44px}

/* band */
.band{background:var(--red);color:#fff;padding:64px 0}
.band-in{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.band h2{max-width:22ch;margin-bottom:.3em}
.band p{margin:0;color:#ffe3e1;max-width:56ch}
.band .btn-red{background:var(--ink);color:var(--chalk)}
.band .btn-red:hover{background:var(--ink-3)}

/* map */
.map{position:relative;border-radius:var(--r);overflow:hidden;min-height:380px;background:var(--ink-2) radial-gradient(rgba(255,255,255,.18) .7px,transparent .8px) 0 0/14px 14px;border:1px solid var(--line)}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.map-load{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:14px;border:0;background:none;color:var(--chalk);font:700 1.2rem/1.3 var(--f-d);cursor:pointer;text-align:left}
.map-load svg{width:44px;height:44px;color:#ff6b62}
.map-load small{font:500 .92rem var(--f-b);color:var(--chalk-mut)}

/* form */
.form{display:grid;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px}
.f label{display:block;font-weight:700;margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;min-height:50px;padding:12px 14px;border:1.5px solid #b9c6bd;border-radius:10px;font:500 1rem var(--f-b);background:var(--paper);color:var(--text)}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--ink);outline:3px solid rgba(255,216,77,.7);outline-offset:1px}
.form .btn{justify-self:start}

.prose p{font-size:1.06rem}
.class-photo{margin:0}
.class-photo img{width:100%;height:auto;border-radius:var(--r);aspect-ratio:16/9;object-fit:cover}
.class-photo figcaption{margin-top:10px;color:var(--muted);font-size:.92rem}
.prose .pending{border-left:4px solid var(--hi);padding:12px 16px;background:#fffbe6;color:var(--muted)}
.legal{columns:2 420px;column-gap:64px}
.legal h2{font-size:1.4rem;margin-top:1.4em;break-after:avoid}
.legal h2:first-child{margin-top:0}
.legal p{break-inside:avoid}
/* text-only page heroes: the red-pen 10 fills the right side */
.phero>.wrap:not(.phero-in){min-height:180px}
.phero>.wrap:not(.phero-in)::after{content:"10";position:absolute;right:40px;top:50%;transform:translateY(-50%) rotate(-10deg);font:700 9rem/1 var(--f-h);color:#ff6b62;opacity:.9;padding:0 .25em;border:6px solid #ff6b62;border-radius:50%;pointer-events:none}
.phero>.wrap:not(.phero-in)>*{max-width:62%}
@media (max-width:860px){.phero>.wrap:not(.phero-in)::after{display:none}.phero>.wrap:not(.phero-in)>*{max-width:none}}

/* footer */
.ftr{background:#0b1c16;color:#a9bdb2;padding:72px 0 28px;font-size:.95rem}
.ftr-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.ftr ul{list-style:none;margin:0;padding:0}
.ftr li{margin:0 0 8px}
.ftr a{color:#d7e2dc;text-decoration:none}
.ftr a:hover{color:#fff;text-decoration:underline}
.ftr-h{font-size:.74rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--hi)}
.ftr-brand p{max-width:36ch;margin-top:16px}
.ftr-addr{display:flex;gap:10px}
.ftr-addr svg{width:20px;height:20px;flex:0 0 auto;color:#ff6b62;margin-top:3px}
.ftr-legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08)}
.ftr-legal p{margin:0}

/* mobile bar */
.mbar{display:none}
.chat-launch{position:fixed;right:22px;bottom:22px;z-index:70;display:inline-flex;align-items:center;gap:10px;min-height:52px;padding:12px 20px;border-radius:999px;border:0;background:var(--ink);color:var(--chalk);font:700 .98rem/1 var(--f-b);cursor:pointer;box-shadow:0 12px 30px rgba(16,38,30,.3);transition:background-color .2s}
.chat-launch:hover{background:var(--ink-3)}
.chat-launch svg{width:20px;height:20px}

/* chat */
.chat{position:fixed;right:22px;bottom:88px;z-index:90;width:min(380px,calc(100vw - 24px));height:min(560px,calc(100vh - 120px));display:flex;flex-direction:column;background:#fff;border-radius:18px;box-shadow:0 30px 80px rgba(16,38,30,.35);overflow:hidden}
.chat[hidden]{display:none}
.chat-hd{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;background:var(--ink);color:var(--chalk)}
.chat-hd small{display:block;color:var(--chalk-mut);font-size:.78rem}
.chat-x{width:40px;height:40px;border:0;border-radius:10px;background:var(--ink-3);color:var(--chalk);font-size:1.5rem;cursor:pointer}
.chat-log{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--paper)}
.msg{max-width:86%;padding:10px 14px;border-radius:14px;font-size:.95rem;line-height:1.45}
.msg a{font-weight:700}
.msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:var(--ink);color:var(--chalk);align-self:flex-end;border-bottom-right-radius:4px}
.chat-quick{display:flex;gap:8px;flex-wrap:wrap;padding:10px 12px;border-top:1px solid var(--line)}
.chat-quick button{padding:8px 12px;border-radius:999px;border:1.5px solid var(--ink);background:#fff;font:600 .85rem var(--f-b);cursor:pointer}
.chat-quick button:hover{background:var(--tint)}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-form input{flex:1;min-height:44px;padding:10px 12px;border:1.5px solid #b9c6bd;border-radius:10px;font:500 1rem var(--f-b)}
.chat-form button{min-height:44px;padding:0 16px;border:0;border-radius:10px;background:var(--red);color:#fff;font-weight:700;cursor:pointer}

/* reveal */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .rv.in{opacity:1;transform:none}
.rm .rv{opacity:1!important;transform:none!important}

@media (max-width:1060px){
  .cards{grid-template-columns:1fr 1fr}
  .card,.card:nth-child(1),.card:nth-child(2){grid-column:span 1}
  .points{grid-template-columns:1fr 1fr}
  .points li,.points li:nth-child(3n+2),.points li:nth-child(3n){padding:24px;border-left:0}
  .points li:nth-child(2n){border-left:1px solid var(--line)}
  .ftr-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  :root{--hdr:64px}
  .nav,.hdr-cta .btn{display:none}
  .burger{display:flex}
  .logo-mark svg{width:42px;height:42px}
  .sec{padding:68px 0}
  .split,.planner,.method,.phero-in,.sec-hd-split{grid-template-columns:1fr;gap:32px}
  .steps li:nth-child(2),.steps li:nth-child(4){transform:none}
  .hero{min-height:auto}
  .hero-in{padding:56px 20px 64px}
  .hero{align-items:flex-end}
  .hero-media{bottom:auto;height:min(78vw,420px)}
  .hero-video{object-position:74% 30%}
  .hero-shade{background:linear-gradient(180deg,rgba(16,38,30,.1) 0%,rgba(16,38,30,.15) 55%,rgba(16,38,30,1) 100%)}
  .hero-in{padding-top:calc(min(78vw,420px) - 40px)!important}
  .chat-launch{display:none}
  .chat{right:12px;bottom:calc(76px + env(safe-area-inset-bottom))}
  .mbar{display:grid;grid-template-columns:1fr 1fr 1.35fr;position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--ink);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -6px 24px rgba(0,0,0,.2)}
  .mbar a,.mbar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:62px;color:var(--chalk);text-decoration:none;background:none;border:0;border-right:1px solid rgba(244,246,240,.12);font:800 .63rem/1 var(--f-b);letter-spacing:.11em;text-transform:uppercase;cursor:pointer}
  .mbar svg{width:22px;height:22px}
  .mbar .mbar-main{background:var(--red);border-right:0}
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .cards,.steps,.list-links,.points{grid-template-columns:1fr}
  .points li:nth-child(2n){border-left:0}
  .points li{padding:20px 0!important}
  .ftr-grid{grid-template-columns:1fr}
  .logo-word{font-size:1.3rem}
  .hero-facts{gap:14px 24px}
  .hero-facts b{font-size:1.35rem}
  .price-num{font-size:2.4rem}
  .note-card{padding:26px 22px}
  .note-link{margin:14px 0 0;display:flex}
  .band-in .btn{width:100%}
  .ten-red::after{border-width:3px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* deep pages: subjects, topics, zones */
.split-wide{grid-template-columns:minmax(220px,1fr) minmax(0,2.4fr)}
.prose.cols{columns:2 340px;column-gap:48px}
.prose.cols p{break-inside:avoid}
.lead{font-size:1.15rem;line-height:1.6;margin-bottom:24px}
.h-link{text-decoration:none}
.h-link:hover{color:var(--red-d)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.fact{background:#fff;border:1px solid var(--line);border-left:5px solid var(--ink);border-radius:var(--r-s);padding:20px 22px}
.fact:nth-child(3n+2){border-left-color:var(--red)}
.fact:nth-child(3n){border-left-color:var(--hi)}
.fact-k{font:800 1.05rem/1.25 var(--f-d);margin-bottom:6px}
.fact p:last-child{margin:0;color:var(--muted)}
.units{border-top:2px solid var(--ink)}
.unit{border-bottom:1px solid var(--line)}
.unit summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:18px;padding:20px 48px 20px 0;position:relative}
.unit summary::-webkit-details-marker{display:none}
.unit summary::after{content:"+";position:absolute;right:8px;font:700 1.8rem/1 var(--f-b);color:var(--red)}
.unit[open] summary::after{content:"−"}
.unit-n{font:700 1.6rem/1 var(--f-h);color:var(--red);min-width:42px}
.unit-t{font:800 1.2rem/1.3 var(--f-d)}
.unit-b{display:grid;grid-template-columns:1fr 1.2fr;gap:36px;padding:4px 0 28px 60px}
.unit-topics{margin:0;padding:0;list-style:none;columns:2 180px;column-gap:24px}
.unit-topics li{break-inside:avoid;padding:6px 0 6px 18px;position:relative}
.unit-topics li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:2px;background:var(--red)}
.unit-b .note-k{color:var(--red-d)}
.topic-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.topic-grid a{display:flex;flex-direction:column;gap:6px;height:100%;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-s);text-decoration:none;transition:border-color .2s}
.topic-grid a:hover{border-color:var(--red)}
.topic-grid b{font:800 1.08rem/1.3 var(--f-d)}
.topic-grid span{color:var(--muted);font-size:.93rem}
.sec-tint .topic-grid a{background:#fff}
.mistakes{list-style:none;counter-reset:m;margin:0;padding:0;display:grid;gap:10px}
.mistakes li{counter-increment:m;position:relative;padding:16px 18px 16px 58px;background:#fff;border:1px solid var(--line);border-radius:var(--r-s)}
.mistakes li::before{content:counter(m);position:absolute;left:16px;top:12px;width:28px;height:28px;border:2.5px solid var(--red);border-radius:50%;display:grid;place-items:center;font:700 1rem/1 var(--f-h);color:var(--red)}
.example{margin:0;background:radial-gradient(120% 120% at 30% 20%,#21493b,#132f26);border:10px solid #6b4a2e;border-radius:12px;padding:30px 32px;color:#eef3ee;box-shadow:inset 0 0 40px rgba(0,0,0,.35)}
.example-k{font:800 .72rem/1 var(--f-b);letter-spacing:.13em;text-transform:uppercase;color:var(--hi)}
.example-q{font:700 1.3rem/1.45 var(--f-h);color:#fff}
.example-steps{margin:0 0 16px;padding-left:22px;font:700 1.08rem/1.55 var(--f-h);color:#dfe8e1}
.example-steps li{padding:4px 0}
.example-r{margin:0;padding-top:14px;border-top:1px dashed rgba(255,255,255,.3);font:700 1.25rem/1.4 var(--f-h);color:#fff}
.example-r span{display:inline-block;margin-right:10px;padding:2px 10px;border:2.5px solid #ff6b62;border-radius:50%;color:#ff6b62;font-size:1rem}
.toc{list-style:none;margin:0;padding:0}
.toc a{display:block;padding:8px 0;color:var(--chalk);text-decoration:none;border-bottom:1px solid rgba(244,246,240,.12)}
.toc a:hover{color:var(--hi)}
.howto{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.howto li{padding:18px 20px 18px 54px;background:#fff;border:1px solid var(--line);border-radius:var(--r-s);position:relative}
.howto li::before{content:"";position:absolute;left:20px;top:22px;width:16px;height:16px;border-radius:50%;border:3px solid var(--red);background:#fff}
.howto li+li::after{content:"";position:absolute;left:28px;top:-13px;height:13px;border-left:2px dashed var(--red)}
.marks{margin:0;padding-left:18px;color:var(--muted)}
.marks li{padding:3px 0}
@media (max-width:860px){
  .split-wide{grid-template-columns:1fr}
  .unit-b{grid-template-columns:1fr;gap:12px;padding-left:0}
  .example{padding:22px 20px;border-width:7px}
}

/* interview additions: why band, the space */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.why>div{background:var(--ink-2);border:1px solid rgba(244,246,240,.14);border-radius:var(--r);padding:24px}
.why b{display:block;font:800 2.2rem/1 var(--f-d);color:var(--hi);margin-bottom:10px}
.why p{margin:0;color:#d5e0d9}
.space{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.space li{background:var(--ink-2);border:1px solid rgba(244,246,240,.14);border-radius:var(--r-s);padding:18px 20px}
.space b{display:block;font:800 1.08rem/1.3 var(--f-d);color:var(--chalk);margin-bottom:4px}
.space span{color:#cbd8d0;font-size:.95rem}
@media (max-width:1060px){.why{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.why,.space{grid-template-columns:1fr}}
.hdr-cta{display:flex;gap:8px}
.btn-call{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-call:hover{background:var(--tint)}
.ftr-addr a{color:#d7e2dc}
@media (max-width:1200px){.btn-call span{display:none}.btn-call{padding:12px 14px}}

/* free first class */
.promo{display:block;background:var(--red);color:#fff;text-align:center;padding:9px 16px;font-size:.92rem;text-decoration:none;line-height:1.35}
.promo b{font-weight:800}
.promo span{text-decoration:underline;text-underline-offset:3px;margin-left:4px}
.promo:hover{background:var(--red-d)}
.price-free{background:#fff;color:var(--text);border:3px solid var(--red)}
.price-free .price-num{color:var(--red)}
.price-free li::before{border-color:var(--red)}
.price-flag-y{background:var(--hi);color:var(--ink)}
.band p b{color:#fff}

/* Einstein section */
.einstein{background:linear-gradient(180deg,var(--paper),var(--tint))}
.einstein-in{display:grid;grid-template-columns:minmax(280px,460px) 1fr;gap:64px;align-items:center}
.einstein-fig{margin:0;transform:rotate(-2deg)}
.einstein-fig img{width:100%;height:auto;border-radius:6px;box-shadow:0 30px 60px rgba(16,38,30,.28)}
.ein-points{list-style:none;margin:0 0 28px;padding:0;display:grid;gap:14px}
.ein-points li{background:#fff;border:1px solid var(--line);border-left:5px solid var(--red);border-radius:var(--r-s);padding:16px 20px}
.ein-points b{display:block;font:800 1.1rem/1.3 var(--f-d);margin-bottom:4px}
.ein-points span{color:var(--muted)}
.einstein .btn{margin:0 8px 8px 0}
@media (max-width:860px){.einstein-in{grid-template-columns:1fr;gap:32px}.einstein-fig{max-width:420px;margin:0 auto}}
.method-ein{display:block;max-width:240px;margin-top:24px;transform:rotate(-3deg)}.method-ein img{width:100%;height:auto;border-radius:6px;box-shadow:0 18px 40px rgba(16,38,30,.25)}@media (max-width:860px){.method-ein{max-width:180px}}
.map-go{margin:12px 0 0}.map-go a{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--red-d)}.map-go svg{width:20px;height:20px}

/* new logo (image lockup) */
:root{--hdr:84px}
.logo-img{display:block;height:70px;width:auto}
.ftr .logo-img{height:110px}
@media (max-width:860px){:root{--hdr:68px}.logo-img{height:56px}}
@media (max-width:860px){.mbar .mbar-wa{background:#25D366;color:#0b1c16}.mbar .mbar-wa:active{background:#1ebe5a}}
@media (max-width:860px){:root{--hdr:76px}.logo-img{height:66px}}

/* Pitágoras logo */
.logo-img{height:62px}
.ftr .logo-img{height:96px}
@media (max-width:860px){.logo-img{height:50px}.ftr .logo-img{height:80px}}
.phero>.wrap:not(.phero-in)::after{content:"";width:170px;height:185px;border:0;border-radius:0;padding:0;transform:translateY(-50%) rotate(0deg);background:url(mark-an-rev.svg) center/contain no-repeat;opacity:.95}

/* Google reviews */
.rev-hd{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:40px}
.rev-hd h2{max-width:20ch;margin:0}
.rev-score{display:flex;align-items:center;gap:14px}
.rev-score>b{font:800 4rem/1 var(--f-d);color:var(--ink)}
.rev-score small{display:block;color:var(--muted);font-weight:600}
.rev-stars{display:inline-flex;gap:2px;color:#f2b01e}
.rev-stars svg{width:18px;height:18px}
.rev-stars-lg svg{width:26px;height:26px}
.rev-grid{columns:3 300px;column-gap:18px}
.rev{break-inside:avoid;margin:0 0 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px}
.rev:nth-child(4n+1){border-top:4px solid var(--red)}
.rev:nth-child(4n+3){border-top:4px solid var(--hi)}
.rev blockquote{margin:12px 0 18px;font-size:1.04rem;line-height:1.55}
.rev figcaption{display:flex;align-items:center;gap:12px}
.rev-av{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;color:#fff;font:800 1.05rem/1 var(--f-d);flex:0 0 auto}
.rev figcaption b{display:block}
.rev figcaption small{color:var(--muted)}
.rev-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.rev-ctas .btn-red svg{width:20px;height:20px;color:#ffd84d}
.hero-rev{text-decoration:none;color:inherit}
.hero-rev b{color:#ffd84d}