:root{--forest:#155947;--forest-dark:#123f36;--mint:#eaf6ef;--ink:#1b302d;--muted:#72817d;--paper:#fff;--border:#dde8e2}
*{box-sizing:border-box}body{min-height:100vh;background:radial-gradient(ellipse at 10% 0%,#e1f3e9 0,transparent 43%),linear-gradient(145deg,#f6f9f4,#f4f5f2);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif}.shell{max-width:1190px}.topbar{background:rgba(255,255,255,.94);border-bottom:1px solid var(--border);box-shadow:0 2px 13px #153f3510}.topbar .shell{min-height:79px}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);text-decoration:none;font-size:21px;letter-spacing:-.04em;font-weight:800;line-height:1.15}.brand img{object-fit:contain}.brand small{display:block;color:var(--muted);font-size:12px;letter-spacing:0;font-weight:500;margin-top:4px}.hero,.side-panel{background:var(--paper);border:1px solid var(--border);border-radius:23px;padding:clamp(20px,3vw,36px);box-shadow:0 16px 48px #204d3910}.hero{position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:0;width:100%;height:5px;background:linear-gradient(90deg,#187957 0 38%,#fff 38% 66%,#c84747 66%)}.eyebrow{font-size:11px;color:#567d6e;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.hero h1{font-size:clamp(22px,3vw,28px);letter-spacing:-.035em;font-weight:780}.count{background:var(--mint);padding:8px 13px;border-radius:99px;font-size:14px;font-weight:800;color:var(--forest)}.progress{background:#e4efe8;border-radius:20px}.progress-bar{background:linear-gradient(90deg,#27a478,var(--forest));border-radius:20px}.study-card{background:linear-gradient(165deg,#f8fbf7,#eff6f1);border:1px solid #dce9df;border-radius:19px;padding:clamp(30px,5vw,60px) clamp(20px,3vw,30px);min-height:325px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative}.study-card:after{content:"DE • CZ";position:absolute;right:18px;bottom:14px;font-size:10px;font-weight:800;color:#afc5b9;letter-spacing:.17em}.question{font-size:clamp(33px,5vw,53px);font-weight:790;line-height:1.18;letter-spacing:-.035em;margin-top:26px;overflow-wrap:anywhere;max-width:100%}.answer{font-size:clamp(23px,3vw,33px);color:var(--forest);font-weight:750;margin-top:8px;overflow-wrap:anywhere}.pronunciation{font-size:16px;color:var(--muted);margin-top:12px}.reveal{width:100%;margin-top:12px}.action-row{display:flex;flex-wrap:wrap;gap:10px}.btn-success{background:var(--forest);border-color:var(--forest)}.btn-success:hover,.btn-success:focus{background:var(--forest-dark);border-color:var(--forest-dark)}.btn-outline-success{color:var(--forest);border-color:#6aaf92}.btn-outline-success:hover{background:var(--forest);border-color:var(--forest)}.btn{border-radius:11px;font-weight:650}.form-control,.form-select{border-radius:10px;border-color:#d8e4dd;padding:10px 13px}.form-control:focus,.form-select:focus{border-color:#5da688;box-shadow:0 0 0 .22rem #26835e20}.form-label{font-size:13px;font-weight:750;color:#354b43}.side-panel{padding:27px}.side-panel h2{font-weight:800;letter-spacing:-.03em}.side-panel hr{border-color:#dce8df;opacity:1}.result{font-size:52px;font-weight:850;color:var(--forest)}.choice-list{display:grid;grid-template-columns:1fr 1fr;gap:11px}.choice-list button{white-space:normal;overflow-wrap:anywhere;min-height:58px;text-align:left;background:#fff;border-color:#cfded5}.choice-list button:not(:disabled):hover{background:#edf7f0;color:var(--forest-dark);border-color:#70ac91}.choice-list button:focus-visible,.btn:focus-visible,.form-control:focus-visible,.form-select:focus-visible{outline:3px solid #7cd9a6;outline-offset:2px}#feedback:not(:empty){padding:13px 16px;border-radius:11px;background:#eef6f0}#stats>div:last-child{border:0!important}.course-pill{display:inline-flex;gap:7px;align-items:center;background:#ecf6ef;color:#237a58;padding:7px 11px;border-radius:100px;font-size:12px;font-weight:800;letter-spacing:.04em}.side-hint{color:#7b8b81;font-size:12px;line-height:1.5}.app-footer{text-align:center;font-size:12px;color:#87958e;padding:12px 0 28px}@media(max-width:991px){.side-panel{margin-bottom:18px}}@media(max-width:575px){.choice-list{grid-template-columns:1fr}.action-row .btn{flex:1}.topbar .shell{min-height:68px}.question{margin-top:19px}.study-card{min-height:280px}.hero,.side-panel{border-radius:16px;padding:19px}.hero h1{font-size:23px}.count{padding:6px 9px}.brand{font-size:19px}}

/* Offcanvas: společné místo pro výběr lekcí, režimy a nastavení */
.lesson-drawer{width:min(420px,100vw);background:#fff}.lesson-drawer .offcanvas-header{border-bottom:1px solid var(--border);padding:23px 25px}.lesson-drawer .offcanvas-body{padding:24px 25px 32px}.lesson-drawer .course-pill{margin-bottom:10px!important}.lesson-drawer .drawer-settings>h2{display:none}.lesson-drawer .side-hint{font-size:12px;color:var(--muted)}.lesson-drawer .form-select{margin-bottom:15px}.lesson-drawer #start{min-height:48px}.lesson-drawer #stats{margin-bottom:16px}.mobile-menu-toggle{display:none}
@media(max-width:767.98px){
 .topbar{display:none!important}
 .mobile-menu-toggle{display:flex;position:fixed;right:13px;top:max(12px,env(safe-area-inset-top));width:46px;height:46px;align-items:center;justify-content:center;border:1px solid #bed7cb;border-radius:14px;background:#fff;color:var(--forest);box-shadow:0 5px 18px #193e3022;font-size:22px;z-index:1025}
 .shell.py-4{padding-top:14px!important;padding-bottom:112px!important}
 .hero{padding:16px;border-radius:16px;overflow:visible}
 .hero:before{border-radius:16px 16px 0 0}
 .hero h1{font-size:19px;margin-top:2px;max-width:calc(100vw - 128px)}
 .hero .mb-3:first-child{padding-right:50px}
 .hero .count{font-size:12px;white-space:nowrap}
 .hero .progress.mb-4{margin-bottom:13px!important}
 .study-card{min-height:clamp(185px,35vh,270px);padding:22px 15px}.question{font-size:clamp(29px,8vw,42px);margin-top:13px}.answer{font-size:clamp(23px,6vw,32px)}
 .action-row{position:fixed;left:0;right:0;bottom:0;padding:11px 14px calc(11px + env(safe-area-inset-bottom));margin:0!important;background:#fffffff5;box-shadow:0 -6px 22px #1a473122;border-top:1px solid var(--border);z-index:1019;display:flex;gap:9px;backdrop-filter:blur(12px)}
 .action-row .btn{min-height:50px;font-size:15px;flex:1 1 0;white-space:nowrap;margin:0!important;padding:9px 10px!important}
 .action-row .btn[hidden]{display:none!important}
 .action-row #skip{flex:0 0 auto;min-width:70px;text-decoration:none;font-size:13px}
 #written-area .form-control{font-size:16px}
 .choice-list{grid-template-columns:1fr 1fr;gap:8px}.choice-list button{min-height:54px;padding:7px 9px;font-size:14px}
 .app-footer{padding-bottom:10px}
 #quiz>.text-secondary.small{display:none}
 #summary{min-height:240px}
}
@media(max-width:380px){.choice-list{grid-template-columns:1fr}.hero h1{font-size:17px}.action-row .btn{font-size:13px}}

/* Barvy podle jazykového kurzu */
:root{--forest:#9b352b;--forest-dark:#70231f;--mint:#fff2df;--border:#e9e0d7}.hero:before{background:linear-gradient(90deg,#252525 0 33%,#c74238 33% 66%,#e6b744 66%)}