:root{--red:#c8202f;--dark:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#f6f7fb;--ok:#0f766e;--warn:#b45309}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--dark)}a{color:var(--red);text-decoration:none}img{max-width:100%}
.topbar{display:flex;align-items:center;gap:18px;padding:12px 22px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:10px;color:var(--dark);font-weight:800}.brand img{height:42px}.nav{display:flex;gap:12px;flex:1;flex-wrap:wrap}.nav a{color:#374151;font-size:14px}.userbox{font-size:13px;color:var(--muted)}
.shell{max-width:1220px;margin:auto;padding:24px}.page-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.page-head h1{font-size:28px;margin:0}.subtle{color:var(--muted);font-size:14px}.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px}.metric{font-size:30px;font-weight:800;margin-top:8px}.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{background:#f9fafb;font-size:13px;text-transform:uppercase;color:#4b5563}.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#f3f4f6;font-size:12px}.badge.ok{background:#dcfce7;color:#166534}.badge.warn{background:#fef3c7;color:#92400e}.badge.bad{background:#fee2e2;color:#991b1b}
.btn{border:0;border-radius:6px;padding:10px 13px;background:var(--dark);color:#fff;display:inline-block;cursor:pointer;font-weight:700}.btn.red{background:var(--red)}.btn.light{background:#f3f4f6;color:#111827}.btn.small{padding:6px 9px;font-size:12px}.actions{display:flex;gap:8px;flex-wrap:wrap}
label{display:block;font-weight:700;margin:12px 0 6px}input,select,textarea{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:6px;background:#fff;font:inherit}textarea{min-height:96px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.alert{padding:12px 14px;border-radius:8px;margin-bottom:14px}.alert-success{background:#dcfce7}.alert-error{background:#fee2e2}.alert-info{background:#e0f2fe}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(430px,100%);background:#fff;border-radius:8px;border:1px solid var(--line);padding:28px}.login-card img{height:64px;margin-bottom:14px}
.test-wrap{max-width:860px;margin:30px auto;padding:20px}.test-head{display:flex;justify-content:space-between;gap:14px;align-items:center}.timer{font-size:22px;font-weight:800;color:var(--red)}.question{font-size:20px;font-weight:800}.option{display:block;border:1px solid var(--line);padding:12px;border-radius:6px;margin:10px 0;background:#fff}.progress{height:10px;background:#e5e7eb;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:var(--red)}
.question-panel{display:none}.question-panel.active{display:block}.test-actions{display:flex;justify-content:space-between;gap:10px;margin-top:16px}.test-actions .btn{min-width:120px}.test-actions [disabled]{cursor:not-allowed;opacity:.55}
@media (max-width:800px){.topbar{align-items:flex-start;flex-direction:column}.grid-4,.grid-2,.form-row{grid-template-columns:1fr}.page-head{align-items:flex-start;flex-direction:column}.table{display:block;overflow:auto}.shell{padding:16px}}

.landing-page{background:#fff;color:var(--dark)}.landing-topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:14px clamp(18px,5vw,64px);background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.landing-brand{display:flex;align-items:center}.landing-brand img{height:54px}.landing-nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.landing-nav a{color:#374151;font-weight:700;padding:9px 12px;border-radius:6px}.landing-nav a:hover{background:#f9fafb;color:var(--red)}.landing-hero{min-height:calc(100vh - 76px);display:grid;align-items:center;padding:clamp(18px,4vw,42px);background:#fff}.landing-hero-simple{grid-template-columns:minmax(0,1fr)}.landing-hero-media{position:relative;min-height:calc(100vh - 160px);border-radius:8px;overflow:hidden;box-shadow:0 24px 70px rgba(17,24,39,.18)}.landing-hero-media img{width:100%;height:100%;min-height:calc(100vh - 160px);display:block;object-fit:cover}
@media (max-width:560px){.landing-topbar{position:static;align-items:flex-start;flex-direction:column}.landing-brand img{height:46px}.landing-nav{width:100%}.landing-nav a{padding-left:0}.landing-hero{min-height:auto;padding:16px}.landing-hero-media,.landing-hero-media img{min-height:70vh}}