body{
    margin:0;
    font-family:'Segoe UI', Arial, sans-serif;
    background:#06152f;
    color:#0f172a;
}

/* HERO */
.hero{
    min-height:100vh;
    color:white;
    position:relative;
    overflow:hidden;
    background:
        radial-gradient(circle at 80% 35%, rgba(0,212,255,.40), transparent 28%),
        radial-gradient(circle at 15% 15%, rgba(255,255,255,.18), transparent 25%),
        linear-gradient(135deg,#06183d 0%,#0756d8 45%,#00b4d8 100%);
}

.hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,rgba(4,12,36,.75),rgba(4,12,36,.10));
    z-index:1;
}

.hero > *{
    position:relative;
    z-index:2;
}

/* NAVBAR */
.navbar{
    padding:28px 0;
    background:transparent;
}

.navbar .container{
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.navbar-brand{
    font-size:32px;
    font-weight:950;
    color:white;
    letter-spacing:-1px;
    text-decoration:none;
}

.nav-btn{
    border-radius:999px;
    padding:12px 28px;
    font-weight:800;
}

/* HERO CONTENT */
.hero-content{
    min-height:calc(100vh - 110px);
    display:flex;
    align-items:center;
    padding:40px 0 90px;
}

.badge-premium{
    background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.35);
    padding:12px 22px;
    border-radius:999px;
    display:inline-block;
    margin-bottom:24px;
    font-weight:700;
    backdrop-filter:blur(12px);
}

.hero h1{
    max-width:760px;
    font-size:58px;
    font-weight:950;
    line-height:1.08;
    letter-spacing:-2px;
}

.hero p{
    max-width:780px;
    font-size:20px;
    line-height:1.7;
}

.btn-main{
    border-radius:999px;
    padding:15px 32px;
    font-size:17px;
    font-weight:800;
}

/* HERO CARD */
.hero-card{
    width:100%;
    max-width:650px;
    margin-left:auto;
    background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.28);
    backdrop-filter:blur(18px);
    border-radius:32px;
    padding:28px;
    box-shadow:0 35px 90px rgba(0,0,0,.32);
}

.school-logo{
    width:85px;
    height:85px;
    border-radius:24px;
    background:white;
    padding:10px;
    object-fit:contain;
}

.hero-card h3{
    font-size:26px;
    font-weight:950;
    color:white;
}

.hero-card p{
    font-size:16px;
    line-height:1.5;
    margin:0 auto;
    color:rgba(255,255,255,.88);
}

/* STATS */
.stats-box{
    background:rgba(255,255,255,.94);
    border-radius:32px;
    padding:34px;
    margin-top:-75px;
    position:relative;
    z-index:5;
    box-shadow:0 35px 90px rgba(0,0,0,.20);
    border:1px solid rgba(255,255,255,.7);
}

.stat h3{
    color:#0d6efd;
    font-weight:950;
    font-size:42px;
}

.stat p{
    color:#0f172a;
    margin-bottom:0;
}

/* VIDEO SHOWCASE */
.video-showcase{
    background:linear-gradient(180deg,#eef6ff,#dcecff);
    padding:80px 0;
    overflow:hidden;
}

.demo-video{
    width:100%;
    max-width:1050px;
    margin:0 auto;
    border-radius:34px;
    overflow:hidden;
    background:#000;
    box-shadow:0 35px 90px rgba(15,23,42,.20);
    border:1px solid rgba(13,110,253,.15);
}

.demo-video video{
    width:100%;
    height:520px;
    display:block;
    object-fit:cover;
    object-position:center;
    background:#000;
}

/* MAIN SECTIONS */
section.py-5{
    background:
        radial-gradient(circle at top left, rgba(13,110,253,.18), transparent 28%),
        linear-gradient(180deg,#eef6ff,#dcecff);
}

.section-title{
    font-size:46px;
    font-weight:950;
    letter-spacing:-1px;
    color:#07152f;
}

/* FEATURE CARDS */
.feature-card{
    border:1px solid rgba(13,110,253,.12);
    border-radius:34px;
    padding:38px;
    height:100%;
    background:rgba(255,255,255,.88);
    box-shadow:0 25px 65px rgba(15,23,42,.12);
    transition:.3s ease;
    backdrop-filter:blur(14px);
}

.feature-card:hover{
    transform:translateY(-10px);
    box-shadow:0 35px 85px rgba(13,110,253,.25);
}

.feature-card h4{
    font-weight:900;
    margin-bottom:12px;
    color:#07152f;
}

.feature-card p{
    color:#334155;
    line-height:1.7;
    font-size:16px;
}

.icon-box{
    width:76px;
    height:76px;
    border-radius:24px;
    background:linear-gradient(135deg,#0d6efd,#00b4d8);
    color:white;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:30px;
    margin-bottom:24px;
    box-shadow:0 20px 45px rgba(13,110,253,.35);
}

/* PREMIUM SECTION */
.premium-section{
    background:
        radial-gradient(circle at top right, rgba(0,180,216,.42), transparent 35%),
        linear-gradient(135deg,#06152f,#0a3a85);
    color:white;
    border-radius:42px;
    padding:75px;
    box-shadow:0 40px 100px rgba(0,0,0,.30);
    border:1px solid rgba(255,255,255,.12);
}

.premium-section .section-title{
    color:white;
}

.premium-section .lead{
    color:rgba(255,255,255,.86);
}

.benefit{
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.20);
    border-radius:28px;
    padding:28px;
    height:100%;
    backdrop-filter:blur(14px);
    box-shadow:0 20px 45px rgba(0,0,0,.16);
}

.benefit h4,
.benefit h5{
    font-weight:900;
    color:white;
}

.benefit p,
.benefit small{
    color:rgba(255,255,255,.86);
}

/* CTA */
.cta{
    background:
        radial-gradient(circle at top left,rgba(255,255,255,.20),transparent 30%),
        linear-gradient(135deg,#0d6efd,#061a40);
    color:white;
    padding:95px 0;
}

.cta .section-title{
    color:white;
}

.cta .lead{
    color:rgba(255,255,255,.86);
}

/* FOOTER */
footer{
    background:#030712;
    color:white;
    padding:30px 0;
}

/* TRUSTED LOGOS */
.trusted-section{
    background:linear-gradient(180deg,#dcecff,#eef6ff);
    padding:70px 0 30px;
}

.trusted-label{
    text-transform:uppercase;
    letter-spacing:2px;
    font-size:13px;
    font-weight:800;
    color:#2563eb;
    margin-bottom:28px;
}

.trusted-logos{
    display:flex;
    justify-content:center;
    gap:18px;
    flex-wrap:wrap;
}

.trusted-logo{
    min-width:170px;
    padding:18px 24px;
    border-radius:22px;
    background:rgba(255,255,255,.75);
    border:1px solid rgba(13,110,253,.14);
    box-shadow:0 18px 45px rgba(15,23,42,.08);
    font-weight:900;
    color:#0f172a;
}

/* FLOATING WHATSAPP */
.whatsapp-float{
    position:fixed;
    bottom:25px;
    right:25px;
    width:70px;
    height:70px;
    border-radius:50%;
    background:#25D366;
    color:white;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:34px;
    text-decoration:none;
    z-index:9999;
    box-shadow:
        0 10px 30px rgba(37,211,102,.45),
        0 0 0 0 rgba(37,211,102,.6);
    animation:pulseWhatsapp 2s infinite;
    transition:.3s;
}

.whatsapp-float:hover{
    transform:scale(1.12);
    color:white;
}

.whatsapp-label{
    position:absolute;
    right:85px;
    background:white;
    color:#0f172a;
    padding:10px 16px;
    border-radius:12px;
    font-weight:700;
    font-size:14px;
    white-space:nowrap;
    box-shadow:0 10px 25px rgba(0,0,0,.15);
}

@keyframes pulseWhatsapp{
    0%{
        box-shadow:
            0 10px 30px rgba(37,211,102,.45),
            0 0 0 0 rgba(37,211,102,.5);
    }

    70%{
        box-shadow:
            0 10px 30px rgba(37,211,102,.45),
            0 0 0 18px rgba(37,211,102,0);
    }

    100%{
        box-shadow:
            0 10px 30px rgba(37,211,102,.45),
            0 0 0 0 rgba(37,211,102,0);
    }
}

/* MOBILE */
@media(max-width:768px){

    .navbar{
        padding:22px 0;
    }

    .navbar .container{
        flex-direction:column;
        gap:18px;
    }

    .navbar-brand{
        font-size:26px;
    }

    .nav-btn{
        padding:10px 18px;
        font-size:14px;
    }

    .hero{
        min-height:auto;
    }

    .hero-content{
        text-align:center;
        padding:30px 0 80px;
        min-height:auto;
    }

    .hero h1{
        font-size:38px;
        letter-spacing:-1px;
    }

    .hero p{
        font-size:17px;
    }

    .hero-card{
        max-width:100%;
        margin:20px auto 0;
        padding:22px;
    }

    .school-logo{
        width:70px;
        height:70px;
    }

    .stats-box{
        width:calc(100% - 30px);
        margin:-40px auto 0;
        padding:25px 18px;
        border-radius:24px;
    }

    .stat h3{
        font-size:34px;
    }

    .video-showcase{
        padding:50px 0;
        overflow:hidden;
    }

    .video-showcase .container{
        padding-left:18px;
        padding-right:18px;
    }

    .demo-video{
        width:100%;
        max-width:100%;
        border-radius:22px;
    }

.demo-video video{
    width:100%;
    height:230px;
    max-height:230px;
    object-fit:cover;
    object-position:center;
    border-radius:22px;
}

    .section-title{
        font-size:34px;
    }

    .feature-card{
        padding:28px;
        border-radius:26px;
    }

    .premium-section{
        padding:35px 24px;
        border-radius:30px;
    }

    .cta{
        padding:70px 0;
    }

    .whatsapp-float{
        width:60px;
        height:60px;
        font-size:28px;
        right:18px;
        bottom:18px;
    }

    .whatsapp-label{
        display:none;
    }
}