:root{
  --bg:#FFFEFB; --bg2:#F3F7F5; --bg-warm:#FFFBEB; --ink:#12211E; --ink2:#2A3B37; --muted:#60736E; --muted2:#84948F;
  --line:#E6ECE9; --line2:#DDE8E3;
  --teal:#0E7C6B; --teal-dark:#085E50; --teal-deep:#073F36; --teal-light:#E6F4F1; --teal-mid:#CDEEE6;
  --amber:#FFB020; --amber-dark:#92400E; --amber-light:#FFF3D6;
  --coral:#FF6B4A; --coral-light:#FFF0EB;
  --card:#ffffff;
  --shadow-sm:0 1px 2px rgba(18,33,30,.04),0 4px 16px rgba(18,33,30,.05);
  --shadow:0 8px 30px rgba(18,33,30,.08),0 2px 8px rgba(18,33,30,.04);
  --shadow-lg:0 24px 60px rgba(7,63,54,.14),0 4px 16px rgba(18,33,30,.06);
  --r-lg:24px; --r-md:18px; --r-sm:12px;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#0B1513; --bg2:#101E1B; --bg-warm:#1E1A0F; --ink:#EEF6F3; --ink2:#C7D8D3; --muted:#9AB0AA; --line:#22332F; --line2:#2A3E39; --card:#13211E; --teal:#2EC4A6; --teal-dark:#2EC4A6; --teal-light:#17332E; --teal-mid:#1D3D36; --coral-light:#2A1E1A; --shadow:0 10px 30px rgba(0,0,0,.35); --shadow-lg:0 24px 60px rgba(0,0,0,.45); }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
::selection{background:var(--teal-mid);color:var(--teal-deep)}
a{color:var(--teal);text-decoration:none} img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.wrap{padding:0 18px}}

/* Buttons — app.js does not depend on these classes, but keep .secondary as an alias */
.btn,.btn-primary,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:999px;font-weight:700;border:1px solid transparent;cursor:pointer;font-size:15px;line-height:1;transition:all .22s ease;white-space:normal;text-align:center}
.btn,.btn-primary,button{background:var(--teal);color:#fff;box-shadow:0 8px 20px rgba(14,124,107,.28)}
.btn:hover,.btn-primary:hover,button:hover{background:var(--teal-dark);transform:translateY(-1px)}
.btn:active,button:active{transform:scale(.98)}
.btn-amber{background:var(--amber);color:#231900}
.btn-ghost,.btn.secondary,button.secondary{background:var(--card);color:var(--ink);border-color:var(--line2);box-shadow:var(--shadow-sm)}
.btn-ghost:hover,.btn.secondary:hover,button.secondary:hover{border-color:var(--teal);color:var(--teal-dark)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:focus-visible,button:focus-visible{outline:3px solid rgba(14,124,107,.35);outline-offset:2px}

/* Topbar */
.topbar{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.03em;color:var(--ink);white-space:nowrap}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--teal);color:#fff;display:grid;place-items:center;box-shadow:0 6px 14px rgba(14,124,107,.3);flex-shrink:0;font-size:18px}
.logo b span{color:var(--teal)} .logo small{display:block;font-family:"Newsreader",serif;font-weight:500;font-size:12.5px;letter-spacing:0;color:var(--muted);line-height:1;margin-top:1px}
@media(max-width:820px){.logo small{display:none}}
.nav{display:flex;gap:2px;font-size:13.5px;font-weight:600;background:var(--bg2);border:1px solid var(--line);padding:4px;border-radius:999px;flex-wrap:wrap}
.nav a{color:var(--muted);padding:7px 13px;border-radius:999px;transition:.2s} .nav a:hover{color:var(--ink);background:var(--card);box-shadow:var(--shadow-sm)}

/* Page header (inner pages) */
.page-head{padding:36px 0 8px}
.page-head h1{font-size:clamp(32px,4.5vw,44px);line-height:1.05;letter-spacing:-.025em;margin:0 0 10px;font-weight:800}
.page-head p{color:var(--muted);font-size:17px;line-height:1.65;max-width:680px;margin:0}

/* Hero */
.hero{position:relative;padding:56px 0 8px;overflow:hidden}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;z-index:1}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:32px}.hero{padding-top:36px}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line2);box-shadow:var(--shadow-sm);padding:7px 12px 7px 8px;border-radius:999px;font-size:13px;font-weight:700;color:var(--ink2);flex-wrap:wrap}
.hero-badge .dot{width:22px;height:22px;border-radius:50%;background:var(--amber-light);display:grid;place-items:center;font-size:12px}
.hero-badge em{font-style:normal;color:var(--teal)}
.hero h1{font-size:clamp(42px,6.2vw,64px);line-height:.96;letter-spacing:-.035em;margin:18px 0 18px;font-weight:800}
.hero h1 em{font-family:"Newsreader",serif;font-weight:500;letter-spacing:-.01em;color:var(--teal)}
.hero-sub{font-size:18.5px;line-height:1.65;color:var(--muted);max-width:520px;margin:0 0 26px}
.hero-ctas{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.hero-proof{display:flex;align-items:center;gap:8px;margin-top:26px;flex-wrap:wrap}
.pill{font-size:13px;font-weight:700;background:var(--teal-light);color:var(--teal-dark);padding:7px 11px;border-radius:999px}
.hero-visual{position:relative}
.hero-img{border-radius:28px;overflow:hidden;border:1px solid var(--line);box-shadow:0 32px 70px rgba(7,63,54,.18),0 8px 24px rgba(18,33,30,.08);background:#EDE8E0;aspect-ratio:3/2}
.hero-img img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.float-card{position:absolute;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-lg);border-radius:16px;padding:12px 14px;display:flex;gap:11px;align-items:center;max-width:260px}
.float-card.fc1{top:-14px;left:-14px} .float-card.fc2{bottom:-14px;right:-10px}
@media(max-width:640px){.float-card.fc1{left:10px;top:10px}.float-card.fc2{right:10px;bottom:10px;max-width:230px}}
.float-ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;font-size:18px}
.float-card b{font-size:13.5px;display:block;line-height:1.3} .float-card span{font-size:12.5px;color:var(--muted);display:block;line-height:1.4}

/* Stats + tools strip */
.stats{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);margin:44px 0 8px;background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);overflow:hidden}
.stat{padding:20px 22px;border-left:1px solid var(--line)} .stat:first-child{border-left:0}
.stat b{font-size:26px;letter-spacing:-.03em;display:flex;align-items:baseline;gap:6px;line-height:1} .stat b i{font-style:normal;font-size:13px;color:var(--teal);font-weight:800}
.stat span{font-size:13px;color:var(--muted);font-weight:600;display:block;margin-top:6px;line-height:1.45}
@media(max-width:820px){.stats{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0}.stat{border-top:1px solid var(--line)}.stat:nth-child(-n+2){border-top:0}}
.tools-strip{display:flex;align-items:center;justify-content:center;gap:10px 22px;flex-wrap:wrap;padding:22px 0 6px;color:var(--muted2);font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.tools-strip i{width:4px;height:4px;border-radius:50%;background:var(--line2);display:inline-block}

/* Layout / sections */
main{max-width:1140px;margin:0 auto;padding:0 24px 64px}
.section{padding:48px 0} .section-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:800;color:var(--teal);margin-bottom:10px}
.kicker:before{content:"";width:22px;height:2px;background:var(--amber);border-radius:99px;display:inline-block}
.section h2{font-size:clamp(28px,4vw,38px);line-height:1.06;letter-spacing:-.025em;margin:0 0 10px;font-weight:800} .section h2 em{font-family:"Newsreader",serif;font-weight:500;color:var(--teal)}
.lead{color:var(--muted);max-width:660px;font-size:17px;line-height:1.65;margin:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px} @media(max-width:880px){.grid3{grid-template-columns:1fr}}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px} @media(max-width:760px){.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;position:relative;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line2)}
.card h2{margin:12px 0 6px;font-size:20px;letter-spacing:-.01em} .card h3{margin:12px 0 6px;font-size:19px;letter-spacing:-.01em} .card p{color:var(--muted);font-size:15px;margin:0 0 10px;line-height:1.65} .card p:last-child{margin-bottom:0}
.card ul{color:var(--muted)}
.icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--teal-light);color:var(--teal-dark);font-size:22px}
.icon-amber{background:var(--amber-light);color:var(--amber-dark)} .icon-coral{background:var(--coral-light);color:#C2410C}
.card .card-link{margin-top:14px;font-size:13.5px;font-weight:800;color:var(--teal);display:inline-flex;gap:6px}

/* Badges, locked state (used by app.js: .locked, .lock-note) */
.badge{font-size:11px;letter-spacing:.07em;text-transform:uppercase;font-weight:800;padding:5px 9px;border-radius:999px;background:var(--bg-warm);color:#8A6100;border:1px solid #FDE68A;display:inline-block;vertical-align:middle}
.badge-free{background:var(--teal-light);color:var(--teal-dark);border-color:transparent}
.badge-pro{background:#1F2937;color:#fff;border-color:#1F2937}
.banner{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:14px 16px;margin:16px 0}
.locked{opacity:.55}
.lock-note{color:var(--amber-dark);font-weight:700}
.plan-line{font-weight:700;margin:20px 0 4px}

/* Forms */
label{font-weight:700;font-size:14px;display:block;margin:14px 0 6px;color:var(--ink2)}
input,select,textarea{width:100%;padding:13px 14px;border:1.5px solid var(--line2);border-radius:12px;font:inherit;font-size:15px;background:var(--card);color:var(--ink)}
input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 4px rgba(14,124,107,.14)}
input{max-width:520px}
form p{color:var(--muted);font-size:14px;line-height:1.6}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
td{color:var(--ink2)}

/* Pricing */
.price-grid,.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px;align-items:stretch} @media(max-width:900px){.price-grid,.pricing{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto;width:100%}}
.price-card{background:var(--card);border:1.5px solid var(--line);border-radius:24px;padding:28px;display:flex;flex-direction:column;transition:.25s}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.price-card.featured{border-color:var(--teal);box-shadow:var(--shadow-lg);position:relative;transform:scale(1.02)}
.price-card.featured:hover{transform:scale(1.02) translateY(-3px)}
.price-card h2{font-size:20px;margin:14px 0 4px}
.price{font-size:46px;font-weight:800;letter-spacing:-.04em;line-height:1;margin:8px 0} .price small,.price span{font-size:15px;color:var(--muted);font-weight:600;letter-spacing:0}
.price-card ul{list-style:none;padding:0;margin:20px 0 24px;display:grid;gap:11px;font-size:14.5px;line-height:1.5;color:var(--ink2)} .price-card ul li{display:flex;gap:10px;align-items:flex-start}
.price-card ul li .tick{width:20px;height:20px;border-radius:50%;background:var(--teal-light);color:var(--teal-dark);display:grid;place-items:center;font-size:11px;font-weight:900;flex-shrink:0;margin-top:1px}
.price-card .btn,.price-card button{margin-top:auto;width:100%}
.pop{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--amber);color:#231900;font-size:12px;font-weight:800;padding:7px 14px;border-radius:999px;box-shadow:0 8px 16px rgba(255,176,32,.35);white-space:nowrap;letter-spacing:.02em}
.guarantee{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px;font-size:13.5px;color:var(--muted);font-weight:600}
.guarantee span{background:var(--card);border:1px solid var(--line);padding:8px 13px;border-radius:999px}

/* Safety */
.do-head,.dont-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.badge-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:17px}
.list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:0} .list li{display:flex;gap:11px;font-size:15px;padding:11px 0;border-top:1px dashed var(--line);line-height:1.55} .list li:first-child{border-top:0} .list li span:first-child{flex-shrink:0;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:1px}
.do .list li span:first-child{background:var(--teal-light);color:var(--teal-dark)} .dont .list li span:first-child{background:var(--coral-light);color:#C2410C}
.myth{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;line-height:1.65} .myth .myth-label{font-size:11px;letter-spacing:.1em;font-weight:800;color:var(--coral);text-transform:uppercase} .myth p{color:var(--muted)} .myth b{color:var(--ink)}
.rule-card{margin-top:16px;background:var(--teal-deep);color:#D9F2EB;border-radius:18px;padding:20px 22px;display:flex;gap:14px;align-items:flex-start}
.rule-card b{color:#fff} .rule-card span{opacity:.9;line-height:1.65;font-size:15px}

/* Final CTA + footer */
.final-cta{position:relative;background:var(--teal);color:#fff;border-radius:28px;text-align:center;padding:48px 28px;overflow:hidden;box-shadow:var(--shadow-lg)}
.final-cta h2{color:#fff;margin-bottom:10px} .final-cta h2 em{color:var(--amber)}
.final-cta p{color:#D1FAE5}
footer{padding:44px 0 54px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);background:var(--bg2)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;max-width:1140px;margin:0 auto;padding:0 24px} @media(max-width:760px){.footer-grid{grid-template-columns:1fr}}
.footer a{color:var(--muted);display:block;padding:4px 0} .footer a:hover{color:var(--teal)} .footer h4{color:var(--ink);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px}
.footer-bottom{max-width:1140px;margin:28px auto 0;padding:18px 24px 0;border-top:1px solid var(--line);font-size:13px}
.status{font-weight:700;min-height:1.4em}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Interactive: quizzes, flashcards, simulations */
.quiz-q{border:1px solid var(--line);border-radius:16px;padding:16px;margin:14px 0;background:var(--card)}
.quiz-opts{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.quiz-opt{justify-content:flex-start;text-align:left}
.quiz-opt:disabled{opacity:1;cursor:default}
.quiz-opt.quiz-correct{background:var(--teal-light)!important;color:var(--teal-dark)!important;border-color:var(--teal)!important}
.quiz-opt.quiz-wrong{background:var(--coral-light)!important;color:#9A3412!important;border-color:var(--coral)!important}
.quiz-feedback{font-weight:700;margin:10px 0 0;line-height:1.55}
.quiz-feedback-good{color:var(--teal-dark)}
.quiz-feedback-bad{color:#9A3412}
.quiz-score{font-weight:800}
.flashcard{perspective:1000px;max-width:560px;margin:16px 0;cursor:pointer}
.flash-inner{position:relative;width:100%;min-height:210px;transition:transform .5s;transform-style:preserve-3d}
.flashcard.flipped .flash-inner{transform:rotateY(180deg)}
.flash-face{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--line2);border-radius:18px;padding:22px;background:var(--card);box-shadow:var(--shadow-sm);min-height:210px}
.flash-back{transform:rotateY(180deg);background:var(--teal-light)}
.flash-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:var(--teal)}
.flash-face p{font-size:17px;line-height:1.6;color:var(--ink)}
.flashcard{height:230px}
.flash-controls{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.deck-score{font-weight:700}
.sim-card{border:1px solid var(--line);border-radius:20px;padding:22px;margin:20px 0;background:var(--card)}
.sim-head{display:flex;gap:14px;align-items:center}
.tool-mark{width:52px;height:52px;border-radius:14px;color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px;flex-shrink:0}
.sim-banner{background:var(--amber-light);border:1px solid #FDE68A;border-radius:12px;padding:12px 14px;font-weight:700;line-height:1.55}
.sim-opts{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.sim-opt{justify-content:flex-start;text-align:left}
.sim-opt.sim-selected{border-color:var(--teal)!important;background:var(--teal-light)!important;color:var(--teal-dark)!important}
.sim-window{border:1px solid var(--line2);border-radius:16px;overflow:hidden;margin-top:16px}
.sim-window-bar{background:var(--bg2);padding:10px 14px;font-weight:700;font-size:13px;border-bottom:1px solid var(--line)}
.sim-bubble{margin:12px;padding:12px 14px;border-radius:14px;line-height:1.6;white-space:pre-wrap}
.sim-user{background:var(--teal-light);margin-left:40px}
.sim-assistant{background:var(--bg2);margin-right:40px}
.sim-mock-image{background:linear-gradient(135deg,#E6F4F1,#FFF3D6);border:1px dashed var(--teal)}
.sim-coach{margin-top:14px}
.sim-coach ul{line-height:1.6}
@media(max-width:640px){.flashcard{height:270px}.flash-face{min-height:270px}}