/* =====================================================
   SEAACADEMYIK — BRÜT NET ULTRA PREMIUM CSS
===================================================== */

:root{
    --primary:#0b2d5c;
    --primary2:#0e3f7a;
    --accent:#ff7a00;
    --accent2:#ff9c2b;
    --bg:#f3f6fb;
    --card:#ffffff;
    --text:#0f172a;
    --muted:#64748b;
    --border:#e7edf5;
    --shadow:0 25px 70px rgba(0,0,0,.08);
    --radius:20px;
}

/* BODY BG */
body{
    background:var(--bg);
}

/* HERO */
.sgk-hero{
    background:linear-gradient(135deg,#0b2d5c,#0e3f7a);
    padding:110px 20px 140px 20px;
    text-align:center;
    color:#fff;
    position:relative;
    overflow:hidden;
}

.sgk-hero:after{
    content:"";
    position:absolute;
    width:500px;
    height:500px;
    background:rgba(255,255,255,0.05);
    border-radius:50%;
    top:-150px;
    right:-150px;
}

.sgk-hero h1{
    font-size:44px;
    font-weight:800;
    letter-spacing:-0.5px;
    margin-bottom:12px;
}

.sgk-hero p{
    font-size:19px;
    opacity:.92;
}

/* CONTAINER */
.sgk-container{
    max-width:900px;
    margin:auto;
    padding:0 20px;
}

/* CARD */
.sgk-card{
    background:var(--card);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:45px;
    margin-top:-90px;
    position:relative;
    border:1px solid var(--border);
}

/* INPUT */
.sgk-form label{
    display:block;
    font-weight:700;
    margin-bottom:10px;
    color:var(--primary);
    font-size:15px;
}

.sgk-form input{
    width:100%;
    padding:18px;
    border-radius:14px;
    border:1px solid var(--border);
    font-size:20px;
    margin-bottom:22px;
    transition:.25s;
    background:#fbfdff;
}

.sgk-form input:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 4px rgba(255,122,0,.15);
    background:#fff;
}

/* BUTTON */
.sgk-form button{
    width:100%;
    padding:20px;
    background:linear-gradient(135deg,var(--accent),var(--accent2));
    border:none;
    color:#fff;
    font-size:19px;
    font-weight:800;
    border-radius:14px;
    cursor:pointer;
    transition:.25s;
    letter-spacing:.3px;
}

.sgk-form button:hover{
    transform:translateY(-3px);
    box-shadow:0 15px 40px rgba(255,122,0,.35);
}

/* SONUÇ */
.sgk-sonuc{
    margin-top:35px;
    background:#f8fbff;
    padding:30px;
    border-radius:16px;
    border:1px solid var(--border);
    animation:fade .4s ease;
}

@keyframes fade{
from{opacity:0; transform:translateY(10px)}
to{opacity:1; transform:translateY(0)}
}

.sgk-sonuc h3{
    margin-bottom:20px;
    color:var(--primary);
    font-size:24px;
    font-weight:800;
}

/* ROW */
.sgk-row{
    display:flex;
    justify-content:space-between;
    padding:16px 0;
    border-bottom:1px solid #edf2f7;
    font-size:18px;
}

.sgk-row:last-child{
    border-bottom:none;
}

/* NET MAAS ÖZEL */
.sgk-row:first-child{
    background:#0b2d5c;
    color:#fff;
    padding:18px;
    border-radius:12px;
    margin-bottom:12px;
    border:none;
}

.sgk-row:first-child b{
    color:#fff;
    font-size:22px;
}

.sgk-row b{
    color:var(--accent);
    font-weight:800;
    font-size:18px;
}

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

.sgk-hero{
    padding:80px 20px 120px 20px;
}

.sgk-hero h1{
    font-size:30px;
}

.sgk-card{
    padding:25px;
    margin-top:-70px;
}

.sgk-row{
    font-size:15px;
}

}