@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700;800;900&display=swap');

:root{
--primary:#126b3a;--primary-dark:#0b4d29;--primary-soft:#e9f4ed;
--bg:#f4f7f5;--surface:#fff;--line:#d8e3dc;--text:#173126;--muted:#66756c;
--danger:#b42318;--danger-soft:#fff0ee;--success:#157a3b;--shadow:0 12px 32px rgba(18,70,43,.08)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding-bottom:72px;font-family:'Roboto',Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.site-header{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;padding:12px 16px;cursor:pointer}
.header-inner{width:min(1100px,100%);margin:auto;display:flex;justify-content:space-between;align-items:center;gap:16px}
.brand-link{display:flex;align-items:center;gap:14px;color:#fff;text-decoration:none!important;min-width:0}
.brand-link:hover{text-decoration:none}
.brand-logo{width:52px;height:52px;object-fit:contain;flex:0 0 auto}
.company-name{font-size:17px;font-weight:900;letter-spacing:.2px;line-height:1.2}.app-name{font-size:13px;font-weight:500;line-height:1.25;opacity:.95}.header-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}.header-profile{min-width:180px;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12)}.header-profile-name{font-size:14px;font-weight:800;line-height:1.2}.header-profile-title{font-size:12px;line-height:1.25;opacity:.92}.top-nav{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:1}.top-nav a{color:#fff;background:rgba(255,255,255,.12);padding:8px 11px;border-radius:9px}
.container{width:min(1180px,calc(100% - 20px));margin:18px auto 40px}.site-footer{position:fixed;left:0;right:0;bottom:0;z-index:20;text-align:center;color:#f3fbf6;padding:12px 16px;background:rgba(11,77,41,.96);box-shadow:0 -8px 24px rgba(10,48,28,.18);font-size:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:18px;margin-bottom:15px;box-shadow:var(--shadow)}
.login-card{width:100%;max-width:560px;flex:0 0 auto;margin-top:auto;margin-bottom:auto}
.narrow-card{max-width:400px;margin-left:auto;margin-right:auto}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:13px}
h1,h2,h3{line-height:1.25;margin-top:0}.section-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;flex-wrap:wrap}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.form-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.form-group{margin-bottom:13px}label{display:block;font-weight:700;margin-bottom:6px}input,select,textarea{width:100%;font:inherit;color:var(--text);background:#fff;border:1px solid #b9cabe;border-radius:9px;padding:10px 11px}
textarea{resize:vertical}.align-end{display:flex;align-items:flex-end}.inline-form{display:flex;gap:8px;align-items:center}.inline-form input{min-width:260px}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}.actions.compact{margin:0;flex-wrap:nowrap}.actions.compact form{margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:9px;padding:10px 14px;font:inherit;font-weight:800;cursor:pointer;text-decoration:none!important}
.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:#e7efe9;color:var(--primary-dark)}.btn-danger{background:#ffe3df;color:var(--danger)}.btn-block{width:100%}
.alert{padding:12px 14px;border-radius:10px;background:var(--primary-soft);color:var(--primary-dark);margin-bottom:13px}.alert-error{background:var(--danger-soft);color:var(--danger)}.alert-success{background:#e8f7ed;color:var(--success)}
.badge{display:inline-block;border-radius:999px;padding:5px 9px;background:var(--primary-soft);color:var(--primary-dark);font-size:12px;font-weight:700}.badge-muted{background:#edf0ee;color:#5f6d64}
.options{display:grid;gap:10px}.option{width:100%;display:grid;grid-template-columns:36px 1fr;gap:10px;align-items:start;text-align:left;border:1px solid #c7d5cc;border-radius:11px;background:#fff;padding:13px;cursor:pointer;font:inherit;color:var(--text)}
.option:hover{border-color:var(--primary)}.option.selected{border:2px solid var(--primary);background:#eff8f2}.option.correct{border:2px solid var(--success);background:#e8f7ed}.option.wrong{border:2px solid var(--danger);background:var(--danger-soft)}
.option-key{width:29px;height:29px;border-radius:50%;background:#edf2ef;display:grid;place-items:center;font-weight:800}.option.selected .option-key{background:var(--primary);color:#fff}
#practice-question,#exam-question,.option-text{overflow-wrap:anywhere}.option-text p,.option-text ul,.option-text ol,#practice-question p,#exam-question p{margin:0 0 8px}.option-text p:last-child,#practice-question p:last-child,#exam-question p:last-child{margin-bottom:0}.option-text img,#practice-question img,#exam-question img,.alert img{max-width:100%;height:auto;display:block;margin-top:8px;border-radius:10px}.option-text table,#practice-question table,#exam-question table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}
.progress{height:9px;background:#e4ebe6;border-radius:999px;overflow:hidden;margin:12px 0 17px}.progress>div{height:100%;background:var(--primary);width:0;transition:width .2s}
.exam-toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;flex-wrap:wrap}.progress-copy{display:flex;flex-direction:column;gap:2px}.progress-copy strong{font-size:20px}.sticky-toolbar{position:sticky;top:0;background:#fff;padding:10px 0;z-index:3}.timer{font-size:24px;font-weight:900;color:var(--danger)}
.practice-actions .btn{min-width:140px}
.big-score{font-size:48px;font-weight:900;color:var(--primary)}.result-card{text-align:center}.metrics,.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{text-align:center}.metric strong{display:block;font-size:26px}.metric span{color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mini-card{border:1px solid var(--line);border-radius:12px;padding:15px;background:#fbfdfb}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#eef5f0;white-space:nowrap}
.admin-nav{display:grid;gap:8px;padding:12px}
.admin-nav-label{font-size:13px;font-weight:700;color:var(--muted);margin:0}
.admin-nav-select{max-width:360px;background:#edf4ef;border-color:#c8d8ce;font-weight:700}
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:15px 0}.check-grid label,.check-row{font-weight:normal}.check-grid input,.check-row input,.option-admin input[type=radio]{width:auto}
.page-login{display:flex;flex-direction:column;min-height:100vh}
.page-login .container{flex:1;display:flex;align-items:center}
@media(max-width:850px){.form-grid.four,.metrics,.metric-grid,.card-grid,.check-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.header-inner{align-items:flex-start;flex-direction:column}.brand-link{width:100%}.header-tools{width:100%;justify-content:flex-start}.header-profile{width:100%}.brand-logo{width:48px;height:48px}.company-name{font-size:16px}.app-name{font-size:12px}.form-grid,.form-grid.four,.metrics,.metric-grid,.card-grid,.check-grid{grid-template-columns:1fr}.container{width:calc(100% - 12px);margin-top:8px}.card{padding:14px}.exam-toolbar{align-items:flex-start}.progress-copy strong{font-size:18px}.inline-form{width:100%;flex-direction:column;align-items:stretch}.inline-form input{min-width:0}.actions .btn{flex:1 1 auto}.practice-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.practice-actions .btn{min-width:0}.practice-actions .btn:last-child{grid-column:1/-1}.page-login .container{align-items:center}}