:root{
--bg:#071018;
--surface:#101d2b;
--surface2:#152536;
--accent:#5dd6ff;
--text:#eef9ff;
--border:rgba(255,255,255,.08);
}

*{
margin:0;
padding:0;
box-sizing:border-box;
}

body{
font-family:Arial,sans-serif;
background:linear-gradient(180deg,#071018,#0d1824);
color:var(--text);
}

.header{
position:sticky;
top:0;
display:flex;
justify-content:space-between;
align-items:center;
padding:18px 30px;
backdrop-filter:blur(16px);
background:rgba(0,0,0,.25);
border-bottom:1px solid var(--border);
z-index:999;
}

.logo-box{
display:flex;
align-items:center;
gap:12px;
}

.logo-circle{
width:52px;
height:52px;
border-radius:50%;
background:var(--accent);
display:flex;
align-items:center;
justify-content:center;
color:#000;
font-weight:bold;
font-size:22px;
}

.nav{
display:flex;
gap:20px;
}

.nav a,
.footer a{
color:white;
text-decoration:none;
}

.header-right{
display:flex;
gap:12px;
align-items:center;
}

.main-btn,
.ghost-btn,
button{
padding:12px 18px;
border-radius:12px;
border:none;
cursor:pointer;
font-weight:bold;
}

.main-btn{
background:var(--accent);
color:#000;
}

.ghost-btn{
background:transparent;
border:1px solid var(--accent);
color:white;
}

.hero{
display:grid;
grid-template-columns:1fr 400px;
gap:40px;
padding:100px 40px;
align-items:center;
min-height:85vh;
}

.hero h2{
font-size:clamp(2.7rem,6vw,5rem);
margin-bottom:18px;
}

.hero p{
font-size:1.1rem;
opacity:.88;
line-height:1.7;
}

.hero-actions{
display:flex;
gap:14px;
margin-top:28px;
}

.robot-card{
background:rgba(255,255,255,.05);
border:1px solid var(--border);
border-radius:24px;
padding:30px;
text-align:center;
}

.robot{
font-size:120px;
animation:float 3s infinite ease-in-out;
}

@keyframes float{
0%{transform:translateY(0);}
50%{transform:translateY(-10px);}
100%{transform:translateY(0);}
}

.stats{
display:flex;
gap:18px;
margin-top:30px;
}

.stat{
background:rgba(255,255,255,.04);
padding:20px;
border-radius:16px;
min-width:120px;
}

.section{
padding:80px 40px;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
gap:20px;
margin-top:30px;
}

.card{
background:rgba(255,255,255,.04);
border:1px solid var(--border);
padding:24px;
border-radius:22px;
}

.footer{
padding:50px 40px;
border-top:1px solid var(--border);
}

.footer-top{
display:flex;
justify-content:space-between;
margin-bottom:40px;
}

.footer-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
gap:20px;
}

.footer-grid input{
width:100%;
padding:12px;
border-radius:12px;
border:none;
margin-bottom:10px;
}

.footer-grid a{
display:block;
margin-top:12px;
}

.copyright{
text-align:center;
margin-top:40px;
opacity:.7;
}

.cookie-box{
position:fixed;
bottom:20px;
left:20px;
right:20px;
background:#0f1a24;
padding:20px;
border-radius:20px;
display:flex;
justify-content:space-between;
align-items:center;
border:1px solid var(--border);
}

.cookie-actions{
display:flex;
gap:12px;
}

.ai-bot{
position:fixed;
right:24px;
bottom:100px;
width:70px;
height:70px;
border-radius:50%;
background:var(--accent);
display:flex;
align-items:center;
justify-content:center;
font-size:36px;
color:#000;
}

.page{
padding:60px 40px;
max-width:1200px;
margin:auto;
}

.course-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
margin-top:40px;
}

.locked{
opacity:.7;
}

.admin-grid{
display:grid;
grid-template-columns:280px 1fr;
min-height:100vh;
}

.sidebar{
background:#09131d;
padding:24px;
border-right:1px solid var(--border);
}

.sidebar a{
display:block;
padding:14px;
margin-bottom:10px;
background:rgba(255,255,255,.04);
border-radius:12px;
}

.dashboard{
padding:30px;
}

@media(max-width:900px){

.hero{
grid-template-columns:1fr;
}

.nav{
display:none;
}

.admin-grid{
grid-template-columns:1fr;
}

.cookie-box{
flex-direction:column;
gap:18px;
}

}