:root{--green:#367b3c;--green-light:#46a049;--ink:#193222;--paper:#f5f8f5;--white:#fff;--line:#dce8dd;--danger:#b42318;--warning:#9a6700;--shadow:0 10px 30px rgba(31,74,38,.09)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}.topbar{min-height:68px;background:linear-gradient(115deg,var(--green),var(--green-light));display:flex;justify-content:space-between;align-items:center;padding:0 max(20px,calc((100% - 1180px)/2));color:#fff}.brand{color:#fff;font-size:1.2rem;font-weight:800}.topbar nav{display:flex;gap:20px;align-items:center}.topbar nav a{color:#fff}.container{width:min(1180px,calc(100% - 32px));margin:36px auto;min-height:calc(100vh - 170px)}footer{text-align:center;color:#627065;padding:24px}.auth-card,.panel{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:var(--shadow)}.auth-card{width:min(440px,100%);margin:6vh auto}.auth-card.wide{width:min(700px,100%)}h1,h2,h3{line-height:1.15}.stack{display:grid;gap:18px}.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}.span-2{grid-column:1/-1}label{display:grid;gap:7px;font-weight:650}input,select,textarea{width:100%;padding:11px 12px;border:1px solid #b8c9bb;border-radius:9px;background:#fff;color:#17271a;font:inherit}textarea{min-height:95px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid rgba(70,160,73,.18);border-color:var(--green-light)}button,.button{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:9px;padding:11px 17px;background:var(--green);color:#fff;font:inherit;font-weight:750;cursor:pointer}.button:hover,button:hover{background:#28622e;text-decoration:none}.secondary{background:#66756a!important}.muted{color:#677368}.alert{padding:13px 16px;border-radius:10px;margin-bottom:20px}.alert.success{background:#e5f6e7;color:#185a22}.alert.error{background:#feeceb;color:#8b1d15}.hero,.section-head,.game-header{display:flex;justify-content:space-between;gap:25px;align-items:center;margin-bottom:26px}.hero{background:linear-gradient(120deg,#e1f2e3,#fff);padding:30px;border-radius:18px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:800;color:var(--green)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{display:block;background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;box-shadow:var(--shadow)}.card.locked{border-color:#e7aaa5;background:#fff7f6}.card.action{color:var(--ink)}.card-head{display:flex;justify-content:space-between;gap:10px}.badge{background:#e3f2e5;color:#235d29;border-radius:999px;padding:4px 9px;font-size:.78rem;white-space:nowrap}.badge.done{background:#dcece0}.badge.warn{background:#fff1c8;color:var(--warning)}.badge.danger{background:#fee4e2;color:var(--danger)}.danger-text{color:var(--danger)}.empty{background:#fff;border:1px dashed #9eb6a2;border-radius:15px;padding:35px;text-align:center}.empty.prominent{margin-top:35px}.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 26px}.admin-nav a{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stats div{background:#fff;padding:20px;border-radius:14px;border:1px solid var(--line);display:grid}.stats strong{font-size:2rem;color:var(--green)}.two-columns{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}.narrow{max-width:720px}.list-item{display:grid;padding:13px 0;border-bottom:1px solid var(--line)}.list-item span{color:#677368}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{background:#edf5ee;color:#275e2d}.grade-input{min-width:75px}.inline-form{display:flex;gap:7px;align-items:center}.inline-form button{font-size:.82rem;padding:8px}.timer{font-size:2rem;font-variant-numeric:tabular-nums;font-weight:900;color:var(--green);background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 18px;position:sticky;top:10px}.questions{display:grid;gap:20px}.questions fieldset{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.questions legend{font-weight:800;padding:0 8px}.option{display:flex;gap:10px;align-items:center;padding:10px;border-radius:8px;font-weight:500}.option:hover{background:#eff7f0}.option input{width:auto}.result-box{text-align:center;background:#e7f5e9;border-radius:16px;padding:25px;margin-bottom:20px}.score{font-size:3rem;font-weight:900;color:var(--green);margin:.2em}.explanation{padding:16px 20px;border-radius:12px;margin:12px 0;background:#fff}.explanation.correct{border-left:5px solid var(--green-light)}.explanation.incorrect{border-left:5px solid var(--danger)}code{background:#eef1ee;padding:2px 5px;border-radius:4px}
@media(max-width:800px){.cards,.stats,.two-columns{grid-template-columns:1fr 1fr}.hero,.game-header{align-items:flex-start}.grid-form{grid-template-columns:1fr}.span-2{grid-column:auto}}
@media(max-width:560px){.container{width:min(100% - 20px,1180px);margin:20px auto}.cards,.stats,.two-columns{grid-template-columns:1fr}.hero,.section-head,.game-header{display:grid}.topbar{padding:14px 12px}.topbar nav span{display:none}.auth-card,.panel{padding:20px}.inline-form{min-width:560px}}