:root{
    --primary:#1769ff;
    --primary2:#4fc3ff;
    --dark:#0f172a;
    --text:#1f2f46;
    --muted:#66758b;
    --line:#e5edf7;
    --white:#ffffff;
    --bg:#f4f8fd;
    --card:#ffffff;
    --shadow:0 18px 40px rgba(24,79,145,.10);
    --radius:22px;
}

*{
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    color:var(--text);
    background:
        radial-gradient(circle at top left, #eaf4ff 0%, #f4f8fd 35%, #f7fbff 100%);
}

a{
    text-decoration:none;
}

.container{
    width:min(1200px, 94%);
    margin:0 auto;
}

/* HEADER */
.site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(255,255,255,.90);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(229,237,247,.95);
    box-shadow:0 4px 18px rgba(0,0,0,.03);
}

.nav-wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:14px 0;
}

.brand{
    display:flex;
    align-items:center;
    gap:14px;
}

.brand-logo{
    width:56px;
    height:56px;
    border-radius:18px;
    background:linear-gradient(135deg, var(--primary), var(--primary2));
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    font-weight:800;
    box-shadow:var(--shadow);
}

.brand-text h1{
    margin:0;
    font-size:22px;
    line-height:1.2;
    color:var(--dark);
}

.brand-text p{
    margin:3px 0 0;
    color:var(--muted);
    font-size:13px;
}

.top-nav{
    display:flex;
    align-items:center;
    gap:18px;
    flex-wrap:wrap;
}

.top-nav a{
    color:var(--text);
    font-weight:700;
    font-size:15px;
}

/* BUTTON */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:12px 18px;
    border-radius:14px;
    font-weight:700;
    transition:.25s ease;
}

.btn:hover{
    transform:translateY(-2px);
}

.btn-primary{
    background:linear-gradient(135deg, var(--primary), var(--primary2));
    color:#fff !important;
    box-shadow:0 12px 25px rgba(23,105,255,.22);
}

.btn-light{
    background:#eef5ff;
    color:#1250b8 !important;
    border:1px solid #dce9ff;
}

.btn-lg{
    padding:14px 24px;
    font-size:16px;
}

/* HERO */
.hero-section{
    padding:42px 0 24px;
}

.hero-grid{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:28px;
    align-items:stretch;
}

.hero-left{
    background:linear-gradient(135deg, #0e63ff, #48c0ff);
    color:#fff;
    border-radius:30px;
    padding:42px;
    box-shadow:0 25px 55px rgba(23,105,255,.20);
}

.hero-badge{
    display:inline-block;
    padding:8px 14px;
    border-radius:999px;
    background:rgba(255,255,255,.18);
    border:1px solid rgba(255,255,255,.30);
    font-size:13px;
    font-weight:700;
    margin-bottom:16px;
}

.hero-left h2{
    margin:0 0 16px;
    font-size:40px;
    line-height:1.25;
}

.hero-left p{
    margin:0;
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,.95);
}

.hero-actions{
    margin-top:26px;
    display:flex;
    gap:14px;
    flex-wrap:wrap;
}

.hero-mini-stats{
    margin-top:28px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:14px;
}

.mini-box{
    background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.24);
    border-radius:18px;
    padding:16px;
}

.mini-box strong{
    display:block;
    font-size:22px;
    margin-bottom:6px;
}

.mini-box span{
    font-size:13px;
    line-height:1.5;
}

.hero-right{
    display:flex;
}

.hero-card{
    width:100%;
    background:#fff;
    border-radius:28px;
    padding:30px;
    box-shadow:var(--shadow);
    border:1px solid #e8f0fa;
}

.hero-card h3{
    margin:0 0 18px;
    font-size:24px;
    color:var(--dark);
}

.feature-list{
    margin:0;
    padding-left:20px;
}

.feature-list li{
    margin-bottom:12px;
    line-height:1.7;
    color:var(--text);
}

/* MAIN */
.main-content{
    padding:8px 0 30px;
}

.content-section{
    margin-top:32px;
}

.section-head{
    text-align:center;
    max-width:820px;
    margin:0 auto 24px;
}

.section-tag{
    display:inline-block;
    padding:8px 14px;
    border-radius:999px;
    background:#edf5ff;
    color:#1557c2;
    font-size:13px;
    font-weight:700;
    border:1px solid #dce9fb;
    margin-bottom:12px;
}

.section-head h2{
    margin:0 0 10px;
    font-size:34px;
    line-height:1.25;
    color:var(--dark);
}

.section-head p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    font-size:16px;
}

/* ALERT */
.alert{
    padding:16px 18px;
    border-radius:16px;
    margin-bottom:20px;
    font-weight:700;
}

.alert-success{
    background:#e9fff4;
    color:#0c8f59;
    border:1px solid #bcefd7;
}

.alert-danger{
    background:#fff2f2;
    color:#d43838;
    border:1px solid #f6caca;
}

.alert-warning{
    background:#fff9e8;
    color:#aa7200;
    border:1px solid #ffe3a5;
}

/* CARDS */
.card-grid{
    display:grid;
    gap:22px;
}

.card-grid-3{
    grid-template-columns:repeat(3,1fr);
}

.info-card,
.role-card,
.feature-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:24px;
    padding:26px;
    box-shadow:var(--shadow);
}

.info-card h3,
.role-card h3,
.feature-item h3{
    margin:0 0 12px;
    font-size:22px;
    color:var(--dark);
}

.info-card p,
.role-card p,
.feature-item p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    font-size:15px;
}

.icon-circle{
    width:54px;
    height:54px;
    border-radius:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-weight:800;
    margin-bottom:16px;
    box-shadow:var(--shadow);
}

.icon-circle.blue{ background:linear-gradient(135deg, #1769ff, #4ebcff); }
.icon-circle.cyan{ background:linear-gradient(135deg, #00a8ff, #61d6ff); }
.icon-circle.green{ background:linear-gradient(135deg, #07b57c, #4be5b4); }

.role-card ul{
    margin:14px 0 0;
    padding-left:20px;
}

.role-card li{
    margin-bottom:10px;
    color:var(--text);
    line-height:1.7;
}

.role-card.admin{
    border-top:5px solid #1769ff;
}

.role-card.faculty{
    border-top:5px solid #1cb5ff;
}

.role-card.staff{
    border-top:5px solid #10b981;
}

/* FEATURE PANEL */
.feature-panel{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:22px;
}

/* CTA */
.cta-section{
    margin-top:36px;
}

.cta-box{
    background:linear-gradient(135deg, #0d66ff, #47bfff);
    color:#fff;
    border-radius:30px;
    padding:34px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    box-shadow:0 20px 45px rgba(23,105,255,.18);
}

.cta-box h2{
    margin:0 0 10px;
    font-size:32px;
}

.cta-box p{
    margin:0;
    line-height:1.8;
    color:rgba(255,255,255,.95);
}

/* FOOTER */
.site-footer{
    margin-top:48px;
    background:#0f1d33;
    color:#d6e2f5;
}

.footer-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr .8fr;
    gap:26px;
    padding:42px 0 24px;
}

.site-footer h3,
.site-footer h4{
    margin-top:0;
    color:#fff;
}

.site-footer p,
.footer-links li{
    color:#d6e2f5;
    line-height:1.8;
}

.footer-links{
    list-style:none;
    padding:0;
    margin:0;
}

.footer-bottom{
    text-align:center;
    padding:16px;
    border-top:1px solid rgba(255,255,255,.08);
    color:#b6c7e0;
    font-size:14px;
}

/* RESPONSIVE */
@media (max-width: 1024px){
    .hero-grid,
    .card-grid-3,
    .feature-panel,
    .footer-grid{
        grid-template-columns:1fr;
    }

    .hero-left h2{
        font-size:32px;
    }

    .cta-box{
        flex-direction:column;
        align-items:flex-start;
    }
}

@media (max-width: 768px){
    .nav-wrap{
        flex-direction:column;
        align-items:flex-start;
    }

    .top-nav{
        width:100%;
        justify-content:flex-start;
    }

    .hero-left{
        padding:28px;
    }

    .hero-left h2{
        font-size:28px;
    }

    .section-head h2{
        font-size:28px;
    }

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

    .cta-box h2{
        font-size:26px;
    }
}