:root{
  --forest:#123527; --forest-2:#1b4d39; --forest-3:#0b2519;
  --yellow:#ffc93c; --yellow-d:#e8a900; --coral:#ff6b5b; --sky:#4cc3ff; --mint:#5fe0a8; --grape:#9b7bff;
  --cream:#fff8e7; --ink:#14261d; --muted:#4f6359; --white:#fff;
  --r:20px; --font-h:'Fredoka',system-ui,sans-serif; --font-b:'Nunito',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:var(--font-b);color:var(--ink);background:#fff;line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--font-h);line-height:1.15;margin:0 0 .5em;font-weight:600}
.container{width:min(1160px,100% - 2.5rem);margin-inline:auto}
.narrow{max-width:760px}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--yellow);padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;font-family:var(--font-h);font-weight:600;font-size:1rem;
  padding:.65rem 1.25rem;border-radius:999px;border:2px solid transparent;text-decoration:none;cursor:pointer;
  transition:transform .12s ease,box-shadow .12s ease;white-space:nowrap}
.btn:active{transform:translateY(3px)}
.btn-yellow{background:var(--yellow);color:var(--forest-3);box-shadow:0 4px 0 var(--yellow-d)}
.btn-yellow:active{box-shadow:0 1px 0 var(--yellow-d)}
.btn-green{background:var(--forest);color:#fff;box-shadow:0 4px 0 var(--forest-3)}
.btn-green:active{box-shadow:0 1px 0 var(--forest-3)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{color:#fff;border-color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-lg{padding:.9rem 1.7rem;font-size:1.1rem}
.btn-block{width:100%}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(18,53,39,.97);backdrop-filter:blur(8px);color:#fff}
.nav{display:flex;align-items:center;gap:1.5rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;font-family:var(--font-h);font-weight:700;font-size:1.5rem;color:#fff}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--yellow);color:var(--forest-3);font-size:1.3rem;transform:rotate(-6deg)}
.menu{display:flex;align-items:center;gap:1.6rem;margin-left:auto}
.menu a{text-decoration:none;font-weight:700;opacity:.9}
.menu > a:hover{color:var(--yellow);opacity:1}
.menu-auth{display:none}
.nav-actions{display:flex;align-items:center;gap:.6rem}
.cart{position:relative;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff}
.cart:hover{background:rgba(255,255,255,.2)}
.cart-count{position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;padding:0 5px;border-radius:999px;background:var(--coral);color:#fff;font:700 .72rem/20px var(--font-b);text-align:center}
.burger{display:none;width:44px;height:44px;border:0;border-radius:12px;background:rgba(255,255,255,.1);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:22px;height:3px;border-radius:3px;background:#fff;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Hero */
.hero{background:var(--forest);color:#fff;padding:4rem 0 5rem;position:relative;overflow:hidden}
/* .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none} */
/* .hero::before{width:420px;height:420px;right:-120px;top:-140px;background:var(--forest-2)} */
.hero::after{width:260px;height:260px;left:-90px;bottom:-120px;background:var(--forest-2)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center;position:relative;z-index:1}
.pill{display:inline-block;background:rgba(255,255,255,.12);padding:.4rem 1rem;border-radius:999px;font-weight:700;font-size:.95rem;margin:0 0 1.2rem}
.hero h1{font-size:clamp(2.4rem,5.5vw,4.2rem);font-weight:700;letter-spacing:-.01em}
.lead{font-size:1.2rem;max-width:34rem;opacity:.92;margin:0 0 1.8rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem}
.hero-stats{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem 1.8rem;padding:0;margin:2rem 0 0}
.hero-stats strong{font-family:var(--font-h);font-size:1.6rem;color:var(--yellow);margin-right:.2rem}

/* Quiz card */
.quiz{background:var(--cream);color:var(--ink);border-radius:28px;padding:1.5rem;box-shadow:0 8px 0 var(--forest-3);transform:rotate(1.5deg);max-width:440px;justify-self:center;width:100%}
.quiz-top{display:flex;align-items:center;gap:.8rem}
.level{font-family:var(--font-h);font-weight:600;background:var(--grape);color:#fff;padding:.15rem .8rem;border-radius:999px;font-size:.9rem}
.xp{flex:1;height:14px;background:#e6dcc0;border-radius:99px;overflow:hidden}
.xp i{display:block;height:100%;background:var(--mint);border-radius:99px;transition:width .5s ease}
.streak{font-weight:800}
.quiz-q{font-family:var(--font-h);font-size:1.6rem;margin:1.2rem 0 1rem}
.quiz-opts{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.quiz-opts button{font:600 1.4rem var(--font-h);padding:.9rem;border-radius:16px;border:2px solid var(--forest);background:#fff;color:var(--forest);cursor:pointer;box-shadow:0 4px 0 var(--forest);transition:transform .1s}
.quiz-opts button:hover{background:#f3fff9}
.quiz-opts button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--forest)}
.quiz-opts button.right{background:var(--mint);animation:pop .35s}
.quiz-opts button.wrong{background:#ffd1cb;border-color:var(--coral);box-shadow:0 4px 0 var(--coral)}
.quiz-msg{margin:1rem 0 0;font-weight:700;color:var(--muted);min-height:1.6em}
@keyframes pop{50%{transform:scale(1.08)}}

/* Sections */
.section{padding:2rem 0 5rem}
.section-green{background:var(--forest);color:#fff}
.section-cream{background:var(--cream)}
.title{font-size:clamp(1.9rem,4vw,2.9rem);text-align:center}
.title.light{color:#fff;margin-bottom:2.5rem}
.sub{text-align:center;color:var(--muted);margin:0 auto 2rem;max-width:36rem}

/* Tabs */
.tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:.7rem;margin-bottom:2rem}
.tab{font:600 1.05rem var(--font-h);padding:.7rem 1.4rem;border-radius:999px;border:2px solid var(--forest);background:#fff;color:var(--forest);cursor:pointer;transition:background .15s}
.tab:hover{background:var(--cream)}
.tab.is-active{background:var(--forest);color:#fff}
.panel-title{text-align:center;font-size:1.4rem;color:var(--muted);font-weight:500}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:1rem}
.tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;text-align:center;text-decoration:none;
  padding:1.4rem .8rem;border-radius:var(--r);min-height:140px;color:var(--forest-3);font-family:var(--font-h);font-weight:600;
  box-shadow:0 5px 0 rgba(0,0,0,.18);transition:transform .12s,box-shadow .12s}
.tile:hover{transform:translateY(-3px);box-shadow:0 8px 0 rgba(0,0,0,.18)}
.tile:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(0,0,0,.18)}
.tile-icon{font-size:2.3rem;line-height:1}
.tile-name{font-size:1.05rem;line-height:1.2}
.c1{background:#ffe08a}.c2{background:#a9e8ff}.c3{background:#b5f0d2}.c4{background:#ffc2bb}.c5{background:#d5c8ff}.c6{background:#ffd6a8}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.step{background:var(--forest-2);border-radius:var(--r);padding:2rem 1.5rem;position:relative;text-align:center}
.step-num{position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:36px;height:36px;border-radius:50%;background:var(--yellow);color:var(--forest-3);display:grid;place-items:center;font:700 1.1rem var(--font-h)}
.step-icon{font-size:2.6rem;display:block;margin-bottom:.5rem}
.step p{margin:0;opacity:.9}

/* Pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:stretch}
.plan{display:flex;flex-direction:column;background:#fff;border:3px solid var(--forest);border-radius:26px;padding:2rem 1.6rem;box-shadow:0 6px 0 var(--forest)}
.plan.is-featured{background:var(--forest);color:#fff;border-color:var(--forest-3);transform:translateY(-12px);box-shadow:0 8px 0 var(--yellow-d)}
.plan-tag{align-self:flex-start;background:var(--cream);color:var(--forest);font-weight:800;font-size:.85rem;padding:.2rem .8rem;border-radius:99px;margin-bottom:1rem}
.is-featured .plan-tag{background:var(--yellow);color:var(--forest-3)}
.plan h3{font-size:1.7rem;margin-bottom:.2rem}
.price{font:700 3.2rem/1 var(--font-h);margin:.5rem 0 1.2rem}
.price .cur{font-size:1.6rem;vertical-align:top;margin-right:2px}
.price small{font:600 1rem var(--font-b);opacity:.7}
.plan ul{list-style:none;padding:0;margin:0 0 1.8rem;flex:1}
.plan li{position:relative;padding-left:1.8rem;margin-bottom:.6rem}
.plan li::before{content:"✓";position:absolute;left:0;top:0;width:1.3rem;height:1.3rem;border-radius:50%;background:var(--mint);color:var(--forest-3);font-size:.8rem;font-weight:800;display:grid;place-items:center;margin-top:.2rem}

/* FAQ */
details{background:#fff;border-radius:16px;padding:1rem 1.3rem;margin-bottom:.8rem;border:2px solid #efe4c4}
summary{font:600 1.15rem var(--font-h);cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.5rem;line-height:1;color:var(--forest)}
details[open] summary::after{content:"–"}
details p{margin:.7rem 0 0;color:var(--muted)}

/* CTA */
.cta{background:var(--yellow);text-align:center;padding:4.5rem 0;color:var(--forest-3)}
.cta h2{font-size:clamp(1.9rem,4vw,2.8rem)}
.cta .btn-yellow{background:var(--forest);color:#fff;box-shadow:0 4px 0 var(--forest-3)}
.cta p{margin:0 0 1.5rem;font-size:1.15rem}

/* Tablet */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .quiz{transform:none}
  .plans{grid-template-columns:1fr;max-width:460px;margin-inline:auto}
  .plan.is-featured{transform:none}
  .steps{grid-template-columns:1fr;gap:2.2rem}
  .foot{grid-template-columns:1fr 1fr}
  .burger{display:flex}
  .desk-only{display:none}
  .nav{gap:.8rem}
  .nav-actions{margin-left:auto}
  .menu{position:absolute;left:0;right:0;top:100%;margin:0;flex-direction:column;align-items:stretch;gap:0;background:var(--forest);
    padding:.5rem 1.25rem 1.2rem;border-top:1px solid rgba(255,255,255,.1);display:none}
  .menu.is-open{display:flex}
  .menu > a{padding:.9rem 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .menu-auth{display:flex;gap:.7rem;margin-top:1rem}
  .menu-auth .btn{flex:1}
}
/* Phone */
@media (max-width:520px){
  body{font-size:16px}
  .section{padding:3.5rem 0}
  .hero{padding:2.5rem 0 3.5rem}
  .hero-cta .btn{width:100%}
  .grid{grid-template-columns:repeat(2,1fr);gap:.7rem}
  .tile{min-height:120px;padding:1rem .5rem}
  .foot{grid-template-columns:1fr}
  .brand-name{font-size:1.3rem}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ---------- Header extras ---------- */
.nav-actions form{margin:0}
.menu-auth form{flex:1;margin:0}
.cart-count[hidden]{display:none}

/* ---------- Auth pages ---------- */
.auth{background:var(--cream);padding:3.5rem 0 5rem;min-height:70vh}
.auth-card{width:min(460px,100% - 2.5rem);margin-inline:auto;background:#fff;border:3px solid var(--forest);border-radius:26px;padding:2.2rem 1.8rem;box-shadow:0 6px 0 var(--forest)}
.auth-card h1{font-size:2rem;text-align:center;margin-bottom:.3rem}
.auth-sub{text-align:center;color:var(--muted);margin:0 0 1.5rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:800;font-size:.95rem;margin-bottom:.35rem}
.field input[type=text],.field input[type=email],.field input[type=password],.field input[type=number]{width:100%;font:600 1rem var(--font-b);padding:.75rem .9rem;border:2px solid #cfd8d3;border-radius:12px;background:#fff;color:var(--ink)}
.field input:focus{border-color:var(--forest);outline:3px solid rgba(76,195,255,.35);outline-offset:0}
.field input[aria-invalid="true"]{border-color:var(--coral)}
.field-error{margin:.35rem 0 0;color:#b42318;font-weight:700;font-size:.88rem}
.field-hint{margin:.35rem 0 0;color:var(--muted);font-size:.85rem}
.auth-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.3rem;font-size:.92rem}
.auth-row label{display:flex;align-items:center;gap:.45rem;font-weight:700}
.auth-row a,.auth-foot a{color:var(--forest);font-weight:800}
.auth-foot{text-align:center;margin:1.4rem 0 0;color:var(--muted)}
.alert{padding:.85rem 1.1rem;border-radius:12px;font-weight:700;margin-bottom:1.2rem}
.alert-ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.alert-err{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}

/* ---------- Cart & checkout ---------- */
.page-head{background:var(--forest);color:#fff;padding:2.6rem 0 3rem}
.page-head h1{font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:.3rem}
.page-head p{margin:0;opacity:.88}
.cart-wrap{padding:2.2rem 0 5rem}
.cart-grid{display:grid;grid-template-columns:1fr 340px;gap:1.8rem;align-items:start}
.cart-list{display:grid;gap:1rem}
.cart-item{display:flex;gap:1.1rem;align-items:center;background:#fff;border:2px solid #e2e8f0;border-radius:18px;padding:1.2rem 1.3rem}
.cart-item-icon{width:56px;height:56px;border-radius:14px;background:var(--cream);border:2px solid var(--forest);display:grid;place-items:center;font-size:1.6rem;flex-shrink:0}
.cart-item-body{flex:1;min-width:0}
.cart-item-body h3{font-size:1.15rem;margin:0 0 .15rem}
.cart-item-meta{margin:0;color:var(--muted);font-size:.9rem}
.cart-tag{display:inline-block;font-size:.72rem;font-weight:800;text-transform:uppercase;background:#e6fcf5;color:var(--forest);padding:.12rem .5rem;border-radius:6px;margin-bottom:.35rem}
.cart-item-price{text-align:right;font-family:var(--font-h);font-weight:700;font-size:1.25rem;white-space:nowrap}
.cart-item-price small{display:block;font:600 .78rem var(--font-b);color:var(--muted)}
.link-remove{background:none;border:0;padding:0;margin-top:.35rem;color:#b42318;font:700 .85rem var(--font-b);cursor:pointer;text-decoration:underline}
.summary{background:var(--cream);border:3px solid var(--forest);border-radius:22px;padding:1.6rem;box-shadow:0 5px 0 var(--forest);position:sticky;top:90px}
.summary h2{font-size:1.3rem}
.summary-row{display:flex;justify-content:space-between;gap:1rem;padding:.5rem 0;color:var(--muted);font-weight:700}
.summary-total{display:flex;justify-content:space-between;align-items:baseline;border-top:2px dashed #cdbf95;margin-top:.5rem;padding-top:1rem;margin-bottom:1.3rem;font-family:var(--font-h);font-size:1.5rem;font-weight:700}
.summary .btn{width:100%}
.summary-link{display:block;text-align:center;margin-top:.9rem;color:var(--forest);font-weight:800}
.empty-state{background:#fff;border:2px dashed #cbd5e1;border-radius:20px;padding:3rem 1.5rem;text-align:center}
.empty-state .big{font-size:3rem;display:block;margin-bottom:.5rem}
.empty-state p{color:var(--muted);margin:0 0 1.4rem}
@media (max-width:860px){
  .cart-grid{grid-template-columns:1fr}
  .summary{position:static}
}
@media (max-width:520px){
  .cart-item{flex-wrap:wrap}
  .cart-item-price{width:100%;text-align:left;display:flex;justify-content:space-between;align-items:baseline}
}