:root{
  --paper:#f6f0e3;
  --paper-2:#eee1cb;
  --cream:#fffaf0;
  --ink:#123c2c;
  --ink-deep:#082d22;
  --green:#2f7f43;
  --green-light:#9cce58;
  --green-pale:#dbeabf;
  --orange:#ec6a1a;
  --orange-dark:#b84409;
  --yellow:#f0bf22;
  --navy:#173a4d;
  --muted:#52675f;
  --line:rgba(18,60,44,.18);
  --shadow:0 24px 70px rgba(18,60,44,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink-deep);
  background:
    radial-gradient(circle at 12% 8%,rgba(255,255,255,.92),transparent 25%),
    repeating-linear-gradient(0deg,rgba(18,60,44,.018) 0 1px,transparent 1px 5px),
    var(--paper);
  font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{width:min(1180px,calc(100% - 38px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,240,227,.92);border-bottom:1px solid rgba(18,60,44,.14);backdrop-filter:blur(16px)}
.nav-row{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;line-height:1.05}
.brand strong{display:block;font:700 1.06rem/1 Oswald,Impact,sans-serif;text-transform:uppercase;letter-spacing:.05em}
.brand small{display:block;margin-top:5px;color:var(--green);font-size:.7rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.brand-flask{width:44px;height:44px;display:grid;place-items:center;border:2px solid var(--ink);border-radius:50%;background:var(--cream)}
.brand-flask svg{width:30px;height:30px;fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.brand-flask .liquid{fill:var(--green-light);stroke:none}
.nav-links{display:flex;align-items:center;gap:24px;font-size:.86rem;font-weight:850}.nav-links a:hover{color:var(--orange)}.nav-links a:last-child{padding:11px 16px;background:var(--ink);color:#fff;border-radius:4px;text-transform:uppercase;letter-spacing:.04em}

.hero{position:relative;overflow:hidden;padding:72px 0 0;background:linear-gradient(90deg,var(--paper) 0 61%,#e3edd8 61% 100%)}
.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 26% 10%,rgba(255,255,255,.8),transparent 28%),linear-gradient(110deg,transparent 0 58%,rgba(47,127,67,.09) 58% 100%);pointer-events:none}
.paper-grain{position:absolute;inset:0;opacity:.18;background-image:radial-gradient(rgba(18,60,44,.32) .6px,transparent .8px);background-size:8px 8px;mask-image:linear-gradient(to bottom,#000,transparent 86%)}
.hero-grid{position:relative;display:grid;grid-template-columns:.98fr 1.02fr;gap:42px;align-items:center;min-height:710px;z-index:2}
.hero-copy{padding:28px 0 92px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange);font-size:.75rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:3px;background:var(--orange);transform:rotate(-2deg)}
.hero h1{margin:18px 0 22px;font:700 clamp(3.7rem,6.1vw,6.75rem)/.9 Oswald,Impact,"Arial Narrow",sans-serif;text-transform:uppercase;letter-spacing:-.045em;text-wrap:balance}.hero h1 em{display:block;color:var(--orange);font-style:normal;position:relative}.hero h1 em:after{content:"";position:absolute;left:0;bottom:-7px;width:92%;height:8px;background:var(--orange);clip-path:polygon(0 35%,100% 0,98% 82%,2% 100%);opacity:.28}.hero h1 span{display:block;margin-top:13px;color:var(--ink);font-size:.36em;line-height:1.05;letter-spacing:.01em}
.hero-lead{max-width:660px;margin:0;color:#385b4d;font-size:1.12rem;font-weight:600}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{min-height:55px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;border:2px solid transparent;border-radius:5px;font-weight:900;letter-spacing:.01em;transition:.18s ease}.btn:hover{transform:translateY(-3px)}.btn-primary{background:var(--orange);color:white;box-shadow:7px 8px 0 rgba(18,60,44,.16)}.btn-primary:hover{background:var(--orange-dark)}.btn-whatsapp{background:#168746;color:#fff;border-color:var(--ink-deep);box-shadow:7px 8px 0 rgba(18,60,44,.15)}.btn-whatsapp:before{content:"●";margin-right:9px;color:#d9ffe7;font-size:.72rem}.btn-whatsapp:hover{background:#0d6f39}
.hero-notes{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.hero-notes span{padding:7px 11px;border:1px dashed rgba(18,60,44,.38);background:rgba(255,250,240,.75);font-size:.78rem;font-weight:850;text-transform:uppercase;transform:rotate(-1deg)}.hero-notes span:nth-child(even){transform:rotate(1deg)}

.chemistry-scene{position:relative;height:640px;align-self:end}.chemistry-scene:before{content:"";position:absolute;inset:38px -25px 15px 10px;background:linear-gradient(145deg,rgba(255,255,255,.25),rgba(47,127,67,.11));clip-path:polygon(7% 0,100% 3%,96% 96%,0 100%)}
.flask-art{position:absolute;right:5px;top:0;width:520px;height:650px;z-index:3;overflow:visible}.scribble{position:absolute;z-index:5;font:700 1.75rem/1 Caveat,cursive}.scribble-ph{left:38px;top:25px;color:var(--green);transform:rotate(-7deg)}.scribble-mol{right:-2px;top:44px;color:var(--orange);transform:rotate(6deg)}.scribble-nox{right:5px;top:245px;color:var(--green);transform:rotate(4deg)}.scribble-question{right:-2px;top:350px;color:var(--ink);font-size:1.35rem;text-transform:uppercase;transform:rotate(-2deg)}
.exam-card{position:absolute;left:16px;right:108px;bottom:12px;z-index:7;min-height:285px;padding:27px 32px;background:var(--cream);border:1px solid rgba(18,60,44,.3);box-shadow:var(--shadow);transform:rotate(-4deg);background-image:repeating-linear-gradient(0deg,transparent 0 27px,rgba(18,60,44,.07) 28px)}.exam-card:after{content:"";position:absolute;inset:10px -9px -9px 10px;border:2px solid rgba(18,60,44,.13);z-index:-1}.exam-title{font:700 1.1rem Oswald,sans-serif;text-transform:uppercase}.exam-card p{margin:11px 0 5px;max-width:360px;font-size:.83rem;line-height:1.45}.exam-card strong{font-family:Georgia,serif}.exam-options{display:grid;gap:1px;margin-top:7px;font-size:.78rem}.exam-note{position:absolute;right:52px;bottom:68px;font:700 1.5rem Caveat,cursive;transform:rotate(-4deg)}.exam-answer{position:absolute;right:24px;bottom:24px;padding:4px 11px;border:2px solid var(--orange);font:700 1.9rem Caveat,cursive;transform:rotate(3deg)}
.subject-band-wrap{position:relative;z-index:8;margin-top:-8px;padding-bottom:28px}.subject-band{min-height:170px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px;padding:24px 48px;background:var(--ink-deep);color:#fff;clip-path:polygon(1% 8%,99% 0,97% 88%,2% 100%);box-shadow:0 20px 40px rgba(18,60,44,.18)}.band-icon{font-size:5.2rem;color:var(--green-light);line-height:1}.subject-band small{display:block;font:700 clamp(1.25rem,2.6vw,2.1rem)/1 Oswald,sans-serif;text-transform:uppercase}.subject-band strong{display:block;color:var(--green-light);font:700 clamp(4rem,7vw,6.8rem)/.9 Oswald,sans-serif;text-transform:uppercase;letter-spacing:-.035em}.subject-band p{margin:0;font:500 clamp(1.2rem,2.3vw,1.9rem)/1.16 Oswald,sans-serif;text-transform:uppercase}.subject-band b{color:#ff8a3b}

.section{position:relative;padding:104px 0}.split-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}.section-heading{max-width:760px}.section-heading h2,.steps-panel h2{margin:12px 0 16px;font:700 clamp(2.55rem,4.7vw,4.65rem)/.98 Oswald,sans-serif;text-transform:uppercase;letter-spacing:-.035em}.section-heading p{margin:0;color:var(--muted);font-size:1.05rem}.sticky-heading{position:sticky;top:110px}.hand-note{margin:18px 0 0 42%;color:var(--orange);font:700 2rem Caveat,cursive;transform:rotate(-3deg)}
.diagnosis{background:linear-gradient(180deg,var(--paper),#efe4d2)}.diagnosis-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.card{min-height:225px;padding:29px 27px;background:rgba(255,250,240,.92);border:2px solid var(--ink);box-shadow:8px 9px 0 rgba(18,60,44,.12);opacity:0;transform:translateY(18px);transition:.45s ease}.card.is-visible{opacity:1;transform:none}.card-icon{display:grid;place-items:center;width:54px;height:54px;margin-bottom:20px;border-radius:50%;background:var(--green-pale);border:2px solid var(--ink);font:700 1.55rem Georgia,serif}.card h3{margin:0 0 8px;font:700 1.55rem/1.05 Oswald,sans-serif;text-transform:uppercase}.card p{margin:0;color:var(--muted)}
.method-section{background:var(--ink-deep);color:#fff}.method-section .eyebrow{color:#ff8a3b}.method-section .eyebrow:before{background:#ff8a3b}.method-section .section-heading h2{color:#fff}.method-section .section-heading p{color:#cbded5}.centered{text-align:center;margin-inline:auto}.centered .eyebrow{justify-content:center}.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:48px}.method-card{position:relative;min-height:250px;padding:28px 24px;background:#fffaf0;color:var(--ink);border:2px solid #fff;box-shadow:8px 9px 0 rgba(156,206,88,.18);opacity:0;transform:translateY(18px);transition:.45s ease}.method-card.is-visible{opacity:1;transform:none}.method-card span{display:inline-grid;place-items:center;width:48px;height:48px;background:var(--orange);color:#fff;border-radius:50%;font-weight:900}.method-card h3{margin:22px 0 8px;font:700 1.45rem Oswald,sans-serif;text-transform:uppercase}.method-card p{margin:0;color:var(--muted)}.comic-note{width:min(760px,92%);margin:42px auto 0;padding:20px 30px;background:var(--yellow);color:var(--ink-deep);border:3px solid var(--ink-deep);transform:rotate(-1deg);box-shadow:8px 9px 0 rgba(0,0,0,.2);text-align:center}.comic-note strong{font:700 1.7rem Caveat,cursive}.comic-note span{display:block;font-weight:800}
.process-section{background:linear-gradient(135deg,#e2ebd2,var(--paper))}.process-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.chalkboard{position:relative;min-height:480px;padding:52px 48px;background:#123d30;color:#f7f0df;border:12px solid #8d5f33;box-shadow:var(--shadow);overflow:hidden}.chalkboard:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.025) 0 1px,transparent 1px 5px)}.chalk-label{position:relative;color:#ffb164;font-size:.75rem;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.chalkboard h2{position:relative;margin:18px 0;font:700 clamp(2.6rem,4.3vw,4.4rem)/.96 Oswald,sans-serif;text-transform:uppercase}.chalk-flow{position:relative;margin:28px 0;padding:17px 18px;border:2px dashed rgba(255,255,255,.56);font:700 1.25rem Caveat,cursive;text-align:center}.chalkboard p{position:relative;color:#d4e2d9}.chalk-doodles{position:absolute;right:25px;bottom:22px;color:rgba(255,255,255,.38);font:700 1.35rem Caveat,cursive;transform:rotate(-4deg)}.steps-panel{padding:12px}.steps-panel ol{list-style:none;margin:30px 0 0;padding:0;display:grid;gap:16px}.steps-panel li{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;padding:19px 20px;background:rgba(255,250,240,.88);border:2px solid var(--ink);box-shadow:6px 7px 0 rgba(18,60,44,.11)}.steps-panel li>span{display:grid;place-items:center;width:46px;height:46px;background:var(--orange);color:#fff;border-radius:50%;font-weight:900}.steps-panel strong{font:700 1.2rem Oswald,sans-serif;text-transform:uppercase}.steps-panel p{margin:4px 0 0;color:var(--muted)}
.topics-section{padding-top:72px;padding-bottom:72px}.topics-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;padding:42px 46px;background:var(--cream);border:3px solid var(--ink);box-shadow:10px 12px 0 rgba(18,60,44,.12);opacity:0;transform:translateY(18px);transition:.45s ease}.topics-card.is-visible{opacity:1;transform:none}.topics-card h2{margin:10px 0 12px;font:700 clamp(2.4rem,4vw,4.15rem)/.98 Oswald,sans-serif;text-transform:uppercase}.topics-card p{margin:0;color:var(--muted)}.topic-tags{display:flex;flex-wrap:wrap;gap:10px}.topic-tags span{padding:10px 13px;background:var(--green-pale);border:2px solid var(--ink);font-weight:850;text-transform:uppercase;font-size:.8rem;transform:rotate(-1deg)}.topic-tags span:nth-child(3n){background:#ffe1c8;transform:rotate(1deg)}
.bring-section{background:#efe3d0}.bring-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}.bring-list{list-style:none;margin:0;padding:0;display:grid;gap:13px}.bring-list li{display:grid;grid-template-columns:64px 1fr;align-items:center;min-height:78px;padding:13px 20px;background:var(--cream);border:2px solid var(--ink);font-weight:800;opacity:0;transform:translateY(15px);transition:.4s ease}.bring-list li.is-visible{opacity:1;transform:none}.bring-list span{font:700 1.8rem Oswald,sans-serif;color:var(--orange)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:start}.faq-list{display:grid;gap:12px}.faq-list details{background:var(--cream);border:2px solid var(--ink);box-shadow:5px 6px 0 rgba(18,60,44,.1);opacity:0;transform:translateY(14px);transition:.4s ease}.faq-list details.is-visible{opacity:1;transform:none}.faq-list summary{cursor:pointer;padding:20px 54px 20px 22px;font:700 1.18rem Oswald,sans-serif;text-transform:uppercase;position:relative}.faq-list summary:after{content:"+";position:absolute;right:20px;top:13px;font-size:2rem;color:var(--orange)}.faq-list details[open] summary:after{content:"–"}.faq-list p{margin:0;padding:0 22px 22px;color:var(--muted)}
.contact-section{padding-top:84px;background:linear-gradient(180deg,var(--paper),#dce8cb)}.contact-card{display:grid;grid-template-columns:.78fr 1.22fr;gap:44px;align-items:start;padding:52px;background:var(--ink-deep);color:#fff;border-radius:8px;box-shadow:0 30px 80px rgba(18,60,44,.24)}.contact-kicker{color:#ff9a54;font-size:.75rem;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.contact-copy h2{margin:13px 0 18px;font:700 clamp(2.7rem,4.8vw,4.85rem)/.96 Oswald,sans-serif;text-transform:uppercase}.contact-copy p{color:#cfdfd7}.btn-large{width:100%;margin-top:20px;min-height:62px;text-align:center}.contact-note{margin-top:22px;color:#a9ce71;font:700 1.45rem Caveat,cursive;transform:rotate(-2deg)}.embedded-form{padding:26px 23px 18px;background:var(--cream);color:var(--ink-deep);border:3px solid var(--green-light);border-radius:7px;box-shadow:10px 12px 0 rgba(0,0,0,.22);scroll-margin-top:95px}.form-heading{margin:0 5px 18px}.form-heading span{display:block;color:var(--orange);font-size:.72rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.form-heading strong{display:block;margin-top:5px;font:700 clamp(1.7rem,2.7vw,2.45rem)/1 Oswald,sans-serif;text-transform:uppercase}.tally-shell{min-height:430px;overflow:hidden;background:#fff;border-radius:4px}.tally-shell iframe{display:block;min-height:430px}.embedded-form small{display:block;margin:13px 5px 0;color:var(--muted);line-height:1.45}
.floating-whatsapp{position:fixed;right:22px;bottom:22px;z-index:80;display:flex;align-items:center;gap:10px;padding:10px 12px 10px 16px;background:#168746;color:#fff;border:2px solid #fff;border-radius:999px;box-shadow:0 12px 32px rgba(0,0,0,.28);font-weight:900}.floating-whatsapp b{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#fff;color:#168746;font-size:1.2rem}.floating-whatsapp:hover{transform:translateY(-3px)}
.site-footer{padding:36px 0;background:#062b21;color:#fff}.footer-row{display:grid;grid-template-columns:1fr auto auto;gap:34px;align-items:center}.signature strong{display:block;font:700 2.1rem Caveat,cursive}.signature span{display:block;color:#a9ce71;font-size:.72rem;font-weight:850;letter-spacing:.11em;text-transform:uppercase}.site-footer p{margin:0;color:#bed1c8;font-size:.85rem}.site-footer div:last-child{display:flex;gap:16px;font-size:.84rem;font-weight:800}

@media (max-width:980px){
  .hero{background:linear-gradient(180deg,var(--paper) 0 62%,#e3edd8 62% 100%)}.hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{padding-bottom:25px}.chemistry-scene{height:610px}.subject-band{grid-template-columns:auto 1fr}.subject-band p{grid-column:2}.split-layout,.process-grid,.bring-layout,.faq-layout,.topics-card,.contact-card{grid-template-columns:1fr}.sticky-heading{position:static}.method-grid{grid-template-columns:repeat(2,1fr)}.footer-row{grid-template-columns:1fr 1fr}.footer-row>p{grid-column:1/-1;order:3}.contact-card{padding:38px 30px}.embedded-form{padding:22px 14px 14px}
}
@media (max-width:680px){
  .wrap{width:min(100% - 26px,1180px)}.nav-links a:not(:last-child){display:none}.nav-links a:last-child{padding:9px 12px}.hero{padding-top:38px}.hero h1{font-size:clamp(3rem,16vw,4.8rem)}.hero h1 span{font-size:.32em}.hero-actions{display:grid}.btn{width:100%}.chemistry-scene{height:510px}.flask-art{width:410px;height:520px;right:-36px}.exam-card{left:0;right:48px;min-height:235px;padding:20px 22px}.exam-card p{font-size:.72rem}.exam-note{display:none}.scribble{font-size:1.35rem}.scribble-question{display:none}.subject-band{min-height:145px;padding:22px 20px;gap:14px}.band-icon{font-size:3.2rem}.subject-band small{font-size:1rem}.subject-band strong{font-size:3.45rem}.subject-band p{font-size:1rem}.section{padding:76px 0}.diagnosis-grid,.method-grid{grid-template-columns:1fr}.split-layout{gap:38px}.method-card{min-height:auto}.chalkboard{padding:38px 27px;border-width:8px}.topics-card{padding:30px 24px}.bring-layout,.faq-layout{gap:38px}.contact-card{padding:30px 18px}.embedded-form{padding-inline:8px}.floating-whatsapp span{display:none}.floating-whatsapp{padding:8px;right:14px;bottom:14px}.footer-row{grid-template-columns:1fr}.site-footer div:last-child{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.card,.method-card,.topics-card,.bring-list li,.faq-list details{opacity:1!important;transform:none!important}}