:root{--ink:#0b120e;--forest:#0c5a32;--forest2:#17884d;--mint:#eaf5ee;--paper:#f5f7f4;--line:#dfe6e0;--white:#fff;--black:#050806;--muted:#617068;--red:#a3463c;--shadow:0 24px 80px rgba(4,26,13,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Arial,sans-serif;line-height:1.5}button,a{font:inherit;-webkit-tap-highlight-color:transparent}a{color:inherit}
.app-header{position:sticky;top:0;z-index:50;background:rgba(5,8,6,.97);border-bottom:1px solid rgba(255,255,255,.08);padding:12px max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));display:flex;align-items:center;justify-content:space-between;gap:14px}
.logo-tile{background:white;border-radius:10px;padding:4px 8px;width:150px;height:48px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.18)}.logo-tile img{width:100%;height:100%;object-fit:cover;object-position:center 52%;display:block}
.header-badge{color:#b9c8bf;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 80% 18%,rgba(23,136,77,.30),transparent 28rem),linear-gradient(135deg,#030604 0%,#08120c 60%,#071c11 100%);color:white;padding:52px 18px 58px}
.hero:before{content:"";position:absolute;inset:0;opacity:.12;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:46px 46px}
.hero-inner{position:relative;max-width:1180px;margin:auto;display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:center}
.kicker{font-size:.73rem;font-weight:900;letter-spacing:.18em;color:#77d69a;text-transform:uppercase;margin-bottom:14px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(3.1rem,7vw,6.6rem);line-height:.95;letter-spacing:-.06em;margin-bottom:24px;max-width:760px}h1 em{font-style:normal;color:#74d49a}.lead{font-size:1.12rem;line-height:1.62;color:#c8d4cc;max-width:700px;margin-bottom:28px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{border:0;border-radius:15px;min-height:50px;padding:13px 20px;font-weight:850;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;transition:.18s transform,.18s background}.btn:active{transform:scale(.985)}.btn-primary{background:var(--forest2);color:white;box-shadow:0 12px 28px rgba(23,136,77,.28)}.btn-dark{background:rgba(255,255,255,.07);color:white;border:1px solid rgba(255,255,255,.18)}.btn-light{background:white;color:var(--ink);border:1px solid var(--line)}
.stats{display:flex;gap:10px;margin-top:30px;flex-wrap:wrap}.stat{min-width:120px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:16px;padding:13px 15px}.stat strong{display:block;font-size:1.45rem}.stat span{font-size:.78rem;color:#9eafa4}
.cover-card{position:relative;display:grid;place-items:center;min-height:510px}.cover-glow{position:absolute;width:80%;height:75%;border-radius:50%;background:rgba(23,136,77,.28);filter:blur(44px)}.cover{position:relative;width:min(350px,82vw);max-height:530px;object-fit:contain;border-radius:7px;box-shadow:0 30px 70px rgba(0,0,0,.5);transform:rotate(1deg)}
.section{max-width:1180px;margin:auto;padding:78px 18px}.section-head{max-width:760px;margin-bottom:30px}.section-head h2{font-size:clamp(2.2rem,5vw,4.3rem);line-height:1;letter-spacing:-.05em;margin-bottom:14px}.section-head p{color:var(--muted);font-size:1rem}
.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:white;border:1px solid var(--line);border-radius:22px;padding:23px;box-shadow:0 10px 30px rgba(7,34,18,.05)}.step{font-weight:950;font-size:1.25rem;color:var(--forest)}.card h3{margin:16px 0 7px;font-size:1.05rem}.card p{margin:0;color:var(--muted);font-size:.91rem}
.progress-card{background:#06100a;color:white;border-radius:24px;padding:22px 24px;margin:14px 0 26px;display:flex;align-items:center;gap:20px;justify-content:space-between}.progress-card strong{font-size:1.1rem}.track{height:8px;background:rgba(255,255,255,.15);border-radius:999px;overflow:hidden;min-width:260px;flex:1}.fill{height:100%;width:0;background:linear-gradient(90deg,#0e6c3c,#39ba70);transition:width .25s;border-radius:inherit}
.lab-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.lab-card{position:relative;background:white;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 12px 34px rgba(5,30,15,.06);overflow:hidden}.lab-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--forest)}.lab-top{display:flex;gap:16px;align-items:flex-start}.lab-num{width:50px;height:50px;border-radius:15px;background:var(--mint);color:var(--forest);font-weight:950;display:grid;place-items:center;flex:0 0 auto}.lab-part{font-size:.68rem;letter-spacing:.12em;font-weight:900;color:var(--forest);text-transform:uppercase}.lab-card h3{font-size:1.2rem;margin:4px 0 7px}.lab-card p{color:var(--muted);font-size:.91rem;margin-bottom:15px}.pills{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:15px}.pill{font-size:.72rem;padding:5px 9px;border-radius:999px;border:1px solid var(--line);background:#fafcfb;color:#56635c}.pill.good{background:#edf8f1;border-color:#b8d9c4;color:#135f34}
.final{max-width:1180px;margin:10px auto 70px;padding:44px 34px;border-radius:28px;background:linear-gradient(135deg,#07100a,#0c4327);color:white;display:flex;gap:24px;justify-content:space-between;align-items:center}.final h2{font-size:clamp(2rem,5vw,3.8rem);line-height:1;letter-spacing:-.05em;margin-bottom:10px}.final p{color:#c2d0c6;max-width:760px;margin:0}
.footer{background:#050806;color:#9cab9f;padding:36px 18px calc(42px + env(safe-area-inset-bottom))}.footer-inner{max-width:1180px;margin:auto;display:flex;align-items:center;gap:18px;justify-content:space-between;flex-wrap:wrap}.footer .logo-tile{width:132px;height:43px}
/* quiz overlay */
.quiz-view{position:fixed;inset:0;z-index:100;background:linear-gradient(180deg,#06100a 0 210px,var(--paper) 210px);overflow:auto;display:none}.quiz-view.open{display:block}.quiz-nav{position:sticky;top:0;z-index:5;background:#050806;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;color:white}.quiz-nav button{background:none;border:0;color:#c4d0c7;font-weight:750;cursor:pointer}.quiz-shell{max-width:780px;margin:auto;padding:40px 18px 84px}.quiz-panel{background:white;border:1px solid var(--line);border-radius:28px;padding:clamp(24px,5vw,46px);box-shadow:var(--shadow)}.quiz-panel h2{font-size:clamp(2.3rem,6vw,4.3rem);line-height:1;letter-spacing:-.05em;margin-bottom:16px}.quiz-desc{color:var(--muted)}.meta{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0}.meta span{font-size:.75rem;border-radius:999px;padding:6px 10px;background:#edf4ef;border:1px solid #d8e3db;color:#506057}.inbook,.save{background:#edf5f0;border:1px solid #d5e4da;border-left:4px solid var(--forest);border-radius:17px;padding:16px;margin:22px 0}.box-label{font-size:.69rem;letter-spacing:.13em;font-weight:950;color:var(--forest);margin-bottom:6px}.question-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.question-counter{color:var(--muted);font-size:.85rem}.qtrack{height:8px;background:#e2e8e3;border-radius:999px;overflow:hidden;margin:14px 0 28px}.qfill{height:100%;background:linear-gradient(90deg,var(--forest),var(--forest2));width:0;transition:width .25s}.question{font-size:clamp(1.5rem,4vw,2.2rem);line-height:1.16;font-weight:850;letter-spacing:-.03em;margin-bottom:22px}.answers{display:grid;gap:10px}.answer{width:100%;text-align:left;background:white;border:1px solid #d5ddd7;border-radius:16px;padding:15px 17px;cursor:pointer;color:var(--ink)}.answer.correct{background:#e9f6ed;border-color:#6ea281}.answer.wrong{background:#fbefed;border-color:#c7968e}.answer.reveal{border-color:#6ea281;box-shadow:inset 0 0 0 1px #6ea281}.answer:disabled{cursor:default}.feedback{margin-top:20px;background:#f5f7f5;border:1px solid #dfe4e0;border-radius:17px;padding:17px;display:none}.feedback.show{display:block}.feedback strong.good{color:#1d6038}.feedback strong.bad{color:var(--red)}.feedback p{color:#4f5a53;margin:6px 0 14px}.score{width:150px;height:150px;border:10px solid #deebe2;border-top-color:var(--forest);border-radius:50%;margin:24px auto;display:grid;place-content:center;text-align:center}.score strong{font-size:2.2rem;line-height:1}.score span{font-size:.78rem;color:var(--muted);margin-top:5px}.result-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}.result-card{border:1px solid var(--line);background:#fafcfb;border-radius:15px;padding:14px}.result-card span{display:block;color:var(--muted);font-size:.75rem}.result-card strong{display:block;margin-top:3px}.hidden{display:none!important}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr;gap:30px}.cover-card{order:-1;min-height:370px}.cover{width:min(265px,70vw);max-height:410px}.how-grid{grid-template-columns:repeat(2,1fr)}.final{margin-left:12px;margin-right:12px;flex-direction:column;align-items:flex-start}}
@media(max-width:650px){.app-header{padding-top:max(10px,env(safe-area-inset-top))}.logo-tile{width:128px;height:42px}.header-badge{font-size:.62rem}.hero{padding-top:36px}.cover-card{min-height:330px}.cover{width:min(240px,68vw);max-height:360px}h1{font-size:clamp(2.75rem,14vw,4.6rem)}.lead{font-size:1rem}.stats{display:grid;grid-template-columns:repeat(3,1fr)}.stat{min-width:0;padding:12px 10px}.stat strong{font-size:1.25rem}.how-grid,.lab-grid{grid-template-columns:1fr}.section{padding-top:58px;padding-bottom:58px}.progress-card{display:block}.track{min-width:0;margin-top:12px}.lab-card{padding:21px}.final{padding:34px 22px}.quiz-shell{padding-top:28px}.quiz-panel{border-radius:23px;padding:24px 19px}.result-cards{grid-template-columns:1fr}}

.progress-label{color:#9fb0a5}.btn-compact{min-height:40px;padding:8px 12px}.quiz-nav-brand{display:flex;align-items:center;gap:10px}.logo-tile-small{width:112px;height:38px}.flush{margin:0}.btn-full{width:100%}.plain-exit{border:0;background:none;color:#67736b;cursor:pointer}.result-panel{text-align:center}.text-left{text-align:left}.actions-center{justify-content:center}

.book-mock{position:relative;width:min(350px,82vw);min-height:500px;padding:38px 30px;border-radius:7px;background:linear-gradient(145deg,#f7f4ec 0%,#eef4ef 55%,#dceadf 100%);color:#07100a;box-shadow:0 30px 70px rgba(0,0,0,.5);transform:rotate(1deg);display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(255,255,255,.7)}.book-mock:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 22%,rgba(23,136,77,.26),transparent 28%),linear-gradient(135deg,transparent 55%,rgba(4,40,21,.09));pointer-events:none}.book-brand,.book-title,.book-sub,.book-rule,.book-copy,.book-mark{position:relative}.book-brand{text-transform:uppercase;letter-spacing:.16em;font-weight:850;font-size:.68rem;color:#42624f}.book-title{margin-top:78px;font-size:3.35rem;font-weight:950;letter-spacing:-.07em;line-height:.95}.book-title span{color:var(--forest2)}.book-sub{font-size:1.7rem;font-weight:800;margin-top:12px;color:var(--forest)}.book-rule{width:56px;height:5px;background:var(--forest2);border-radius:999px;margin:22px 0}.book-copy{font-size:.88rem;line-height:1.5;color:#3f5146;max-width:250px}.book-mark{margin-top:auto;width:48px;height:48px;border-radius:14px;background:#07100a;color:#74d49a;display:grid;place-items:center;font-weight:950;letter-spacing:-.05em}@media(max-width:650px){.book-mock{width:min(245px,70vw);min-height:350px;padding:26px 22px}.book-brand{font-size:.55rem}.book-title{margin-top:50px;font-size:2.45rem}.book-sub{font-size:1.25rem}.book-copy{font-size:.72rem}.book-mark{width:38px;height:38px;border-radius:11px}}