:root{
  --bg:#f5f8f7; --surface:#ffffff; --ink:#14211e; --muted:#62706c; --line:#dfe8e4;
  --green:#1f6a59; --green-dark:#174f43; --green-soft:#e4f1ec; --red:#a64646; --red-soft:#f8eaea;
  --shadow:0 18px 45px rgba(31,55,48,.10); --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,sans-serif}
button,select{font:inherit}
button{cursor:pointer}
.site-header{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:16px clamp(20px,5vw,72px);background:rgba(245,248,247,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,232,228,.8)}
.brand{display:inline-flex;align-items:baseline;gap:8px;text-decoration:none;color:var(--ink);font-family:Manrope,sans-serif;font-weight:800}
.brand-main{font-size:14px;letter-spacing:.11em}
.brand-stat{font-size:28px;color:var(--green);letter-spacing:-.04em}
.nav{display:flex;gap:8px;align-items:center}
.nav-link{border:0;background:transparent;padding:10px 13px;border-radius:12px;color:var(--muted);font-weight:700}
.nav-link:hover{background:var(--green-soft);color:var(--green-dark)}
.premium-link{color:var(--green)}
main{min-height:70vh}
.view{display:none}
.view.active{display:block}
.hero{max-width:1220px;margin:0 auto;padding:80px 28px 54px;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
.hero h1,.page-head h1,.pricing-hero h1{font-family:Manrope,sans-serif;font-size:clamp(44px,6vw,76px);line-height:.98;letter-spacing:-.055em;margin:0 0 24px}
.hero h1 span{color:var(--green)}
.hero-copy>p{font-size:19px;line-height:1.7;color:var(--muted);max-width:650px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 18px}
.btn{border:0;border-radius:14px;padding:14px 18px;font-weight:800}
.btn.primary{background:var(--green);color:white;box-shadow:0 8px 20px rgba(31,106,89,.18)}
.btn.primary:hover{background:var(--green-dark)}
.btn.secondary{background:var(--surface);border:1px solid var(--line);color:var(--ink)}
.btn.ghost{background:transparent;border:1px solid var(--line)}
.btn.full{width:100%}
.trust-row{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--muted);font-weight:600}
.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow);transform:rotate(1deg)}
.mini-header{display:flex;justify-content:space-between;align-items:center;font-weight:800;margin-bottom:18px}
.pill{font-size:12px;padding:6px 9px;border-radius:999px;background:var(--green-soft);color:var(--green)}
.mini-question{font-size:20px;line-height:1.45;font-weight:700}
.mini-options{display:grid;gap:10px;margin:18px 0}
.mini-options div{border:1px solid var(--line);padding:13px 14px;border-radius:12px;background:#fbfdfc}
.mini-options .correct-demo{border-color:#86b9aa;background:var(--green-soft);color:var(--green-dark);font-weight:800;display:flex;justify-content:space-between}
.mini-rationale{font-size:14px;line-height:1.55;background:#f7faf9;border-radius:12px;padding:14px;color:var(--muted)}
.category-section,.feature-grid,.ad-card,.page-head,.stats-grid,.progress-card,.pricing-hero,.pricing-grid{max-width:1220px;margin-left:auto;margin-right:auto}
.category-section{padding:30px 28px}
.section-heading h2{font-family:Manrope;font-size:34px;letter-spacing:-.035em;margin:0}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:24px}
.category-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;transition:.2s}
.category-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.category-card h3{margin:10px 0 6px}
.category-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.45}
.category-icon{font-size:24px}
.feature-grid{padding:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature-grid article,.progress-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px}
.feature-grid h3{margin:12px 0 8px}
.feature-grid p{margin:0;color:var(--muted);line-height:1.55}
.feature-icon{width:42px;height:42px;border-radius:12px;background:var(--green-soft);display:grid;place-items:center;color:var(--green);font-weight:900}
.ad-card{margin-top:26px;margin-bottom:70px;padding:24px 28px;background:#eef3f1;border:1px dashed #bdcbc6;border-radius:18px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.ad-card h3{margin:7px 0}
.ad-card p{margin:0;color:var(--muted)}
.ad-label{font-size:10px;letter-spacing:.12em;font-weight:800;color:#7b8985}
.quiz-shell{max-width:1260px;margin:0 auto;padding:44px 28px 70px;display:grid;grid-template-columns:300px 1fr;gap:24px}
.quiz-sidebar,.quiz-panel{background:var(--surface);border:1px solid var(--line);border-radius:22px}
.quiz-sidebar{padding:24px;align-self:start;position:sticky;top:92px}
.quiz-sidebar h2{font-family:Manrope;margin:0 0 22px}
.quiz-sidebar label{display:block;font-size:13px;font-weight:800;margin:15px 0 7px}
.quiz-sidebar select{width:100%;padding:12px;border:1px solid var(--line);border-radius:12px;background:white}
.sidebar-note{margin-top:22px;padding:16px;background:var(--green-soft);border-radius:14px}
.sidebar-note p{font-size:13px;line-height:1.45;color:var(--muted)}
.text-btn{border:0;background:transparent;color:var(--green);font-weight:800;padding:0}
.quiz-panel{min-height:620px;padding:28px}
.empty-state{min-height:560px;display:grid;place-items:center;align-content:center;text-align:center;color:var(--muted)}
.empty-state h2{color:var(--ink);font-family:Manrope}
.empty-icon{width:56px;height:56px;border-radius:16px;background:var(--green-soft);display:grid;place-items:center;color:var(--green);font-size:30px;font-weight:900}
.hidden{display:none!important}
.quiz-topbar{display:flex;justify-content:space-between;gap:20px;align-items:center}
.quiz-topbar h2{margin:4px 0 0;font-family:Manrope}
.quiz-meta{color:var(--muted);font-size:13px}
.score-chip{background:var(--green-soft);color:var(--green);font-weight:800;padding:10px 13px;border-radius:999px}
.progress-track{height:8px;background:#edf2f0;border-radius:999px;overflow:hidden;margin:22px 0}
.progress-fill{height:100%;background:var(--green);width:0;transition:.25s}
.question-card{padding:10px 0}
.question-number{font-size:12px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.09em}
.question-card h3{font-size:25px;line-height:1.45;margin:14px 0 20px}
.answers{display:grid;gap:11px}
.answer-btn{display:flex;gap:12px;text-align:left;width:100%;padding:15px;border:1px solid var(--line);background:white;border-radius:14px;color:var(--ink)}
.answer-btn:hover{border-color:#adc4bc;background:#fbfdfc}
.answer-btn .letter{min-width:28px;height:28px;border-radius:8px;background:#edf2f0;display:grid;place-items:center;font-size:12px;font-weight:900}
.answer-btn.correct{border-color:#7eb2a3;background:var(--green-soft)}
.answer-btn.incorrect{border-color:#d5a0a0;background:var(--red-soft)}
.answer-btn:disabled{cursor:default}
.feedback{margin-top:18px;padding:18px;border-radius:14px;background:#f7faf9}
.feedback-status{font-weight:900;margin-bottom:6px}
.feedback-status.good{color:var(--green)}
.feedback-status.bad{color:var(--red)}
.feedback p{color:var(--muted);line-height:1.55}
.why-others{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
#nextQuestion{margin-top:18px}
.results{text-align:center;padding:52px 20px}
.results h2{font-family:Manrope;font-size:40px;margin:6px 0 24px}
.score-ring{width:150px;height:150px;border-radius:50%;border:12px solid var(--green-soft);display:grid;place-items:center;margin:0 auto 18px}
.score-ring span{font-size:36px;font-weight:900;color:var(--green)}
.result-breakdown{max-width:520px;margin:25px auto;text-align:left}
.result-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.page-head,.pricing-hero{padding:62px 28px 22px}
.page-head h1,.pricing-hero h1{font-size:56px}
.page-head p,.pricing-hero p{color:var(--muted);max-width:760px;line-height:1.6}
.stats-grid{padding:0 28px 22px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stats-grid article{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px}
.stats-grid span{display:block;color:var(--muted);font-size:13px}
.stats-grid strong{font-size:30px;margin-top:5px;display:block}
.progress-card{margin-bottom:18px}
.progress-card:last-of-type{margin-bottom:70px}
.progress-row{display:grid;grid-template-columns:170px 1fr 60px;gap:14px;align-items:center;margin:14px 0}
.progress-row .bar{height:9px;background:#edf2f0;border-radius:999px;overflow:hidden}
.progress-row .bar div{height:100%;background:var(--green)}
.split-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.split-heading h2{margin-bottom:3px}
.split-heading p{margin-top:0;color:var(--muted)}
.missed-item{padding:13px 0;border-top:1px solid var(--line)}
.missed-item small{color:var(--green);font-weight:800}
.missed-item p{margin:5px 0;color:var(--muted)}
.pricing-hero{text-align:center}
.pricing-hero p{margin-left:auto;margin-right:auto}
.pricing-grid{padding:20px 28px 70px;display:grid;grid-template-columns:repeat(2,minmax(0,430px));justify-content:center;gap:18px}
.price-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px}
.price-card.featured{border:2px solid var(--green);box-shadow:var(--shadow)}
.price-label{font-size:12px;letter-spacing:.12em;color:var(--green);font-weight:900}
.price{font-size:48px;font-weight:900;letter-spacing:-.05em;margin:12px 0}
.price span{font-size:16px;color:var(--muted);letter-spacing:0}
.price-card p{color:var(--muted)}
.price-card ul{padding-left:20px;line-height:2}
.price-card small{display:block;margin-top:10px;color:var(--muted);line-height:1.45}
footer{border-top:1px solid var(--line);padding:34px clamp(20px,5vw,72px);display:grid;grid-template-columns:auto 1fr auto;gap:30px;align-items:center;color:var(--muted);font-size:12px}
.footer-links{display:flex;gap:14px}
.footer-links a{color:var(--muted)}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:50px}.hero-card{transform:none}
  .category-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}
  .quiz-shell{grid-template-columns:1fr}.quiz-sidebar{position:static}.stats-grid{grid-template-columns:repeat(2,1fr)}
  footer{grid-template-columns:1fr}.nav-link:not(.premium-link){display:none}
}
@media(max-width:560px){
  .site-header{padding:12px 16px}.brand-main{font-size:10px}.brand-stat{font-size:23px}
  .hero{padding:40px 18px}.hero h1{font-size:48px}.hero-copy>p{font-size:16px}
  .category-section,.feature-grid,.ad-card,.page-head,.stats-grid,.progress-card,.pricing-grid{margin-left:16px;margin-right:16px;padding-left:0;padding-right:0}
  .category-grid{grid-template-columns:1fr}.ad-card{padding:18px;flex-direction:column;align-items:flex-start}
  .quiz-shell{padding:24px 14px}.quiz-sidebar,.quiz-panel{border-radius:18px}.quiz-panel{padding:18px;min-height:540px}
  .question-card h3{font-size:21px}.stats-grid{grid-template-columns:1fr 1fr}.pricing-grid{grid-template-columns:1fr}
  .progress-row{grid-template-columns:110px 1fr 50px;font-size:12px}.page-head h1,.pricing-hero h1{font-size:42px}
}

/* V2 additions */
.top-actions{display:flex;gap:8px;align-items:center}
.account-chip{border:1px solid var(--line);background:white;border-radius:999px;padding:9px 12px;font-weight:800;color:var(--ink)}
.daily-card{max-width:1220px;margin:18px auto 34px;padding:26px 28px;border-radius:22px;background:linear-gradient(135deg,#173f37,#1f6a59);color:white;display:flex;justify-content:space-between;align-items:center;gap:24px;box-shadow:var(--shadow)}
.daily-card .eyebrow{color:#bce5d8}.daily-card h2{font-family:Manrope;margin:3px 0 8px;font-size:32px}.daily-card p{margin:0;color:#d8ebe5;line-height:1.5}
.daily-card .btn{background:white;color:var(--green-dark)}
.streak{font-size:13px;font-weight:800;background:rgba(255,255,255,.12);padding:9px 12px;border-radius:999px;white-space:nowrap}
.auth-wrap{max-width:520px;margin:60px auto;padding:0 18px 70px}
.auth-card{background:white;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.auth-card h1{font-family:Manrope;margin:0 0 8px}.auth-card p{color:var(--muted)}
.form-field{display:block;margin:15px 0 6px;font-size:13px;font-weight:800}
.input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:white;font:inherit}
.auth-switch{text-align:center;margin-top:16px;font-size:13px;color:var(--muted)}
.notice{padding:12px 14px;border-radius:12px;margin:12px 0;font-size:13px;line-height:1.45}
.notice.good{background:var(--green-soft);color:var(--green-dark)}.notice.bad{background:var(--red-soft);color:var(--red)}
.premium-badge{display:inline-flex;align-items:center;gap:6px;background:var(--green-soft);color:var(--green);font-size:11px;font-weight:900;padding:6px 9px;border-radius:999px}
.dashboard-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.daily-complete{background:var(--green-soft);border:1px solid #b8d8ce;padding:16px;border-radius:14px;margin:18px 0}
footer{margin-top:20px}
@media(max-width:700px){.daily-card{margin:12px 16px 28px;flex-direction:column;align-items:flex-start}.top-actions .nav-link{display:none}.account-chip{font-size:12px}.daily-card h2{font-size:27px}}

.account-wrap{position:relative}
.account-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:150px;background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.12);padding:6px;z-index:1000}
.account-menu button{display:block;width:100%;border:0;background:transparent;text-align:left;padding:10px 12px;border-radius:8px;cursor:pointer;font:inherit}
.account-menu button:hover{background:rgba(0,0,0,.05)}
.account-menu #accountLogout{color:#b42318}