:root{
    --bg:#07101f;
    --card:#101b2f;
    --card2:#13243d;
    --line:rgba(255,255,255,.10);
    --text:#f4f7fb;
    --muted:#9fb0c7;
    --cyan:#36d6ff;
    --blue:#3c72ff;
    --green:#41f0a6;
    --warn:#ffcf5a;
    --shadow:0 30px 80px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    background:var(--bg);
    color:var(--text);
}
.site-bg{
    position:fixed;
    inset:0;
    z-index:-1;
    background:
        radial-gradient(circle at 20% 10%, rgba(54,214,255,.20), transparent 30%),
        radial-gradient(circle at 80% 20%, rgba(65,240,166,.12), transparent 28%),
        linear-gradient(135deg, #07101f, #0a1428 55%, #050912);
}
a{color:inherit;text-decoration:none}
.public-header{
    max-width:1180px;
    margin:0 auto;
    padding:28px 22px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
}
.brand{
    display:flex;
    align-items:center;
    gap:14px;
}
.brand.mini{margin-bottom:26px}
.brand-mark{
    width:48px;
    height:48px;
    border-radius:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-weight:900;
    color:#06101c;
    background:linear-gradient(135deg, var(--cyan), var(--green));
    box-shadow:0 12px 35px rgba(54,214,255,.22);
}
.brand-name{
    font-weight:900;
    letter-spacing:.5px;
    font-size:20px;
}
.brand-tagline{
    color:var(--muted);
    font-size:13px;
    margin-top:3px;
}
.admin-link,.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:44px;
    padding:0 18px;
    border-radius:999px;
    font-weight:800;
    border:1px solid var(--line);
}
.btn.primary{
    color:#06101c;
    background:linear-gradient(135deg, var(--cyan), var(--green));
    border:0;
}
.btn.secondary{
    background:rgba(255,255,255,.05);
}
.btn.full{width:100%}
.landing{
    max-width:1180px;
    margin:0 auto;
    padding:20px 22px 70px;
}
.hero{
    min-height:440px;
    display:grid;
    grid-template-columns:1.25fr .75fr;
    gap:30px;
    align-items:center;
}
.eyebrow{
    color:var(--green);
    text-transform:uppercase;
    letter-spacing:1.4px;
    font-size:12px;
    font-weight:900;
}
.hero h1,.admin-main h1{
    font-size:clamp(34px, 5vw, 68px);
    line-height:.95;
    margin:16px 0;
    letter-spacing:-2px;
}
.hero p{
    max-width:680px;
    color:var(--muted);
    line-height:1.65;
    font-size:18px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.impact-card,.panel-card,.phone,.explain,.login-card,.kpi{
    background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
    border:1px solid var(--line);
    border-radius:28px;
    box-shadow:var(--shadow);
}
.impact-card{padding:28px}
.impact-title{font-size:22px;font-weight:900;margin-bottom:20px}
.metric-row,.bar-row{
    display:flex;
    justify-content:space-between;
    gap:18px;
    padding:14px 0;
    border-bottom:1px solid var(--line);
}
.metric-row:last-child,.bar-row:last-child{border-bottom:0}
.metric-row span,.bar-row span{color:var(--muted)}
.metric-row strong{color:var(--cyan)}
.demo-grid{
    display:grid;
    grid-template-columns:430px 1fr;
    gap:30px;
    align-items:start;
}
.phone{
    overflow:hidden;
    border-radius:34px;
}
.phone-top{
    display:flex;
    align-items:center;
    gap:12px;
    padding:18px;
    background:rgba(54,214,255,.10);
    border-bottom:1px solid var(--line);
}
.phone-top span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
.avatar{
    width:40px;height:40px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--cyan),var(--blue));
    font-weight:900;
}
.chat-box{
    height:320px;
    overflow:auto;
    padding:18px;
}
.bubble{
    max-width:88%;
    padding:12px 14px;
    border-radius:18px;
    margin:0 0 12px;
    line-height:1.45;
    font-size:14px;
}
.bubble.bot{
    background:rgba(255,255,255,.08);
    color:var(--text);
    border-top-left-radius:4px;
}
.bubble.user{
    margin-left:auto;
    background:linear-gradient(135deg,var(--cyan),var(--green));
    color:#06101c;
    border-top-right-radius:4px;
    font-weight:700;
}
.chat-form{
    padding:18px;
    display:grid;
    gap:10px;
    border-top:1px solid var(--line);
}
input,textarea,button{
    font-family:inherit;
}
input,textarea{
    width:100%;
    border:1px solid var(--line);
    background:rgba(0,0,0,.20);
    color:var(--text);
    border-radius:16px;
    padding:13px 14px;
    outline:none;
}
textarea{min-height:92px;resize:vertical}
button{
    border:0;
    border-radius:16px;
    min-height:48px;
    font-weight:900;
    cursor:pointer;
    background:linear-gradient(135deg,var(--cyan),var(--green));
    color:#06101c;
}
.explain{padding:30px}
.explain h2{font-size:34px;line-height:1.05;margin:0 0 14px}
.explain p{color:var(--muted);line-height:1.65}
.last-insight{
    margin:24px 0;
    padding:18px;
    border-radius:20px;
    background:rgba(65,240,166,.08);
    border:1px solid rgba(65,240,166,.20);
    color:var(--text);
    line-height:1.6;
}
.feature-list{
    display:grid;
    gap:12px;
}
.feature-list div{
    padding:16px;
    border-radius:18px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
}
.feature-list strong{display:block;margin-bottom:4px}
.feature-list span{color:var(--muted)}
.login-wrap{
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
}
.login-card{
    width:100%;
    max-width:430px;
    padding:28px;
}
.login-card h1{margin:0 0 18px;font-size:34px}
.login-card label{display:block;margin:14px 0 7px;color:var(--muted);font-size:13px}
.alert{
    border:1px solid rgba(255,207,90,.4);
    background:rgba(255,207,90,.1);
    color:var(--warn);
    border-radius:16px;
    padding:12px;
    margin-bottom:16px;
}
.back-link{display:block;text-align:center;color:var(--muted);margin-top:16px}
.admin-body{background:#07101f}
.admin-shell{
    min-height:100vh;
    display:grid;
    grid-template-columns:290px 1fr;
}
.sidebar{
    padding:24px;
    border-right:1px solid var(--line);
    background:rgba(0,0,0,.24);
    position:sticky;
    top:0;
    height:100vh;
}
.sidebar nav{display:grid;gap:8px}
.sidebar nav a{
    padding:13px 14px;
    border-radius:15px;
    color:var(--muted);
    border:1px solid transparent;
}
.sidebar nav a.active,.sidebar nav a:hover{
    color:var(--text);
    border-color:var(--line);
    background:rgba(255,255,255,.06);
}
.admin-main{
    padding:30px;
    min-width:0;
}
.admin-top{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    margin-bottom:24px;
}
.admin-main h1{
    font-size:42px;
    margin:10px 0 0;
}
.top-badge{
    padding:10px 14px;
    border-radius:999px;
    color:#06101c;
    background:linear-gradient(135deg,var(--cyan),var(--green));
    font-weight:900;
}
.kpi-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
    margin-bottom:18px;
}
.kpi{padding:20px}
.kpi span{display:block;color:var(--muted);font-size:13px}
.kpi strong{display:block;font-size:36px;margin-top:8px}
.admin-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:18px;
    margin-bottom:18px;
}
.panel-card{padding:22px}
.panel-card.wide{margin-top:18px}
.panel-card h2{margin:0 0 16px;font-size:22px}
.empty{color:var(--muted)}
.section-head{
    display:flex;
    justify-content:space-between;
    gap:15px;
    align-items:center;
    margin-bottom:14px;
}
.section-head a{color:var(--cyan);font-weight:800}
.table-wrap{overflow:auto}
table{
    width:100%;
    border-collapse:collapse;
    min-width:850px;
}
th,td{
    text-align:left;
    padding:13px 12px;
    border-bottom:1px solid var(--line);
    vertical-align:top;
    font-size:14px;
}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.8px}
.pill{
    display:inline-flex;
    padding:5px 9px;
    border-radius:999px;
    background:rgba(54,214,255,.12);
    color:var(--cyan);
    font-weight:800;
    font-size:12px;
}
.search-form{
    display:grid;
    grid-template-columns:1fr 120px 90px;
    gap:10px;
    align-items:center;
    margin-bottom:18px;
}
.search-form a{
    text-align:center;
    color:var(--muted);
}
@media(max-width:900px){
    .hero,.demo-grid,.admin-grid,.kpi-grid,.admin-shell{
        grid-template-columns:1fr;
    }
    .sidebar{
        position:relative;
        height:auto;
        border-right:0;
        border-bottom:1px solid var(--line);
    }
    .public-header{
        align-items:flex-start;
        flex-direction:column;
    }
    .admin-main{padding:20px}
    .search-form{grid-template-columns:1fr}
}