:root{
    --wkh-blue:#0759aa;
    --wkh-green:#2eaa50;
    --wkh-dark:#08243e;
    --wkh-text:#13243a;
    --wkh-muted:#68778c;
    --wkh-bg:#f4f7fb;
    --wkh-line:#dce6ef;
    --wkh-white:#fff;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--wkh-text);background:var(--wkh-bg)}
img{max-width:100%;height:auto}
button,input{font:inherit}
.wkh-footer{padding:14px 24px;background:var(--wkh-dark);color:#fff;text-align:center;font-size:.85rem}
.wkh-site-home,.wkh-login{min-height:calc(100vh - 45px);display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top right,rgba(46,170,80,.18),transparent 30%),linear-gradient(145deg,#eef6ff,#fff)}
.wkh-site-home__card,.wkh-login__card{width:min(520px,100%);padding:42px;border:1px solid var(--wkh-line);border-radius:24px;background:#fff;box-shadow:0 22px 60px rgba(8,36,62,.12);text-align:center}
.wkh-site-home__card img,.wkh-login__logo{max-width:220px;margin-bottom:22px}
.wkh-site-home__card h1,.wkh-login__card h1{margin:0 0 12px;font-size:2rem;line-height:1.15}
.wkh-site-home__card p,.wkh-login__card p{color:var(--wkh-muted);line-height:1.6}
.wkh-site-home__card a,.wkh-login__form button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;border:0;border-radius:12px;background:linear-gradient(90deg,var(--wkh-blue),var(--wkh-green));color:#fff;font-weight:800;text-decoration:none;cursor:pointer}
.wkh-kicker{margin:0 0 10px;color:var(--wkh-blue);font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.wkh-login__form{text-align:left;margin-top:24px}
.wkh-login__form label{display:block;margin-bottom:8px;font-weight:700}
.wkh-login__form input{width:100%;min-height:50px;padding:12px 14px;border:1px solid var(--wkh-line);border-radius:12px}
.wkh-login__form button{width:100%;margin-top:14px}
.wkh-alert,.wkh-success{margin:16px 0;padding:12px;border-radius:10px}
.wkh-alert{background:#fff0f0;color:#a11}
.wkh-success{background:#eaf8ee;color:#176b31}
.wkh-app{min-height:100vh;display:grid;grid-template-columns:330px minmax(0,1fr)}
.wkh-sidebar{display:flex;flex-direction:column;min-height:100vh;padding:22px;background:var(--wkh-dark);color:#fff}
.wkh-sidebar__brand{display:flex;align-items:center;gap:13px;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12)}
.wkh-sidebar__brand img{width:105px;background:#fff;padding:6px;border-radius:10px}
.wkh-sidebar__brand strong,.wkh-sidebar__brand small{display:block}
.wkh-sidebar__brand small{margin-top:5px;color:#a9bed0}
.wkh-sidebar__placeholder{flex:1;padding:28px 0}
.wkh-sidebar__placeholder h2{margin:0 0 10px;font-size:1.15rem}
.wkh-sidebar__placeholder p{color:#b7c8d8;line-height:1.6}
.wkh-logout-form button{width:100%;min-height:46px;border:1px solid rgba(255,255,255,.2);border-radius:12px;background:transparent;color:#fff;font-weight:800;cursor:pointer}
.wkh-main{padding:48px}
.wkh-main__header{padding:34px;border:1px solid var(--wkh-line);border-radius:22px;background:#fff;box-shadow:0 18px 45px rgba(8,36,62,.08)}
.wkh-main__header h1{margin:0 0 14px;font-size:clamp(2rem,4vw,3.4rem);line-height:1.08}
.wkh-main__header p:last-child{max-width:850px;color:var(--wkh-muted);line-height:1.65}
.wkh-dashboard{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:22px}
.wkh-dashboard article{padding:24px;border:1px solid var(--wkh-line);border-radius:18px;background:#fff;box-shadow:0 12px 32px rgba(8,36,62,.06)}
.wkh-dashboard strong{display:block;margin-bottom:10px;color:var(--wkh-blue);font-size:1.1rem}
.wkh-dashboard p{margin:0;color:var(--wkh-muted);line-height:1.55}
.wkh-generic{min-height:80vh;padding:48px}
@media(max-width:900px){
    .wkh-app{grid-template-columns:1fr}
    .wkh-sidebar{min-height:auto}
    .wkh-main{padding:24px}
}
@media(max-width:720px){
    .wkh-dashboard{grid-template-columns:1fr}
}