/* GLOBAL */
* { margin:0; padding:0; box-sizing:border-box; }
html, body { overflow-x:hidden; font-family:'DM Sans', sans-serif; background:#f5f5f5; color:#2d4059; }
.container { width:90%; max-width:1200px; margin:auto; }
section { scroll-margin-top:120px; }

/* NAVBAR */
.navbar {
    width:100%;
    padding:20px 0;
    background:white;
    position:fixed;
    top:0; left:0;
    z-index:99;
    transition:0.3s;
    box-shadow:0 2px 20px rgba(0,0,0,0.05);
}
.navbar.shrink { padding:10px 0; box-shadow:0 2px 15px rgba(0,0,0,0.1); }
.navbar .container { display:flex; justify-content:space-between; align-items:center; }
.navbar nav a { margin-left:20px; text-decoration:none; color:#2d4059; font-weight:500; position:relative; }
.navbar nav a::after { content:''; position:absolute; left:0; bottom:-3px; width:0; height:2px; background:#2d4059; transition:0.3s; }
.navbar nav a:hover::after { width:100%; }
.logo { font-family:'Montserrat',sans-serif; font-weight:700; font-size:22px; color:#2d4059; }

/* HERO */
.hero {
    height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    padding-top:80px;
    background: linear-gradient(135deg, #2d4059, #3e5c7b, #5a7c9f);
    color:white;
    position:relative;
}
.hero-content { display:flex; flex-direction:column; align-items:center; gap:20px; }
.hero h1, .hero p, .hero .btn {
    opacity:1;             /* her zaman görünür */
    transform:translateY(0); /* başlangıç pozisyonu */
    text-shadow:0 4px 15px rgba(0,0,0,0.3);
}

/* BUTTON */
.hero .btn {
    display:inline-block;
    background:#ffffff;
    color:#2d4059;
    padding:14px 30px;
    border-radius:10px;
    font-weight:600;
    text-decoration:none;
    transition:all 0.3s ease;
    box-shadow:0 5px 15px rgba(45,64,89,0.2);
}
.hero .btn:hover {
    transform:translateY(-3px) scale(1.05);
    background:#f0f0f0;
    box-shadow:0 10px 25px rgba(45,64,89,0.3);
}

/* SERVICES */
.services { padding:80px 0; text-align:center; }
.services-grid { margin-top:40px; display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:25px; }
.service-card { background:white; padding:30px; border-radius:15px; box-shadow:0 5px 25px rgba(45,64,89,0.06); border:1px solid #eaedf1; transition:0.3s; }
.service-card:hover { transform:translateY(-7px); box-shadow:0 10px 30px rgba(45,64,89,0.1); }
.service-card h3 { color:#2d4059; margin-bottom:10px; }

/* ABOUT */
.about { padding:80px 0; text-align:center; }
.about p { max-width:700px; margin:auto; font-size:18px; opacity:0.85; }

/* CONTACT */
.contact { padding:80px 0; text-align:center; margin-bottom:40px; }
.contact p { font-size:20px; font-weight:600; color:#2d4059; }

/* FOOTER */
.footer { background:#2d4059; color:white; padding:50px 0 20px; font-size:15px; }
.footer a { color:white; text-decoration:none; }
.footer a:hover { text-decoration:underline; }
.footer-content { display:flex; justify-content:space-between; flex-wrap:wrap; gap:30px; }
.footer-left h3 { font-size:24px; margin-bottom:10px; }
.footer-left p { opacity:0.85; max-width:400px; }
.footer-right h4 { margin:0 0 10px; }
.footer-right ul { list-style:none; padding:0; margin:0 0 15px; }
.footer-right ul li { margin-bottom:8px; }
.footer-bottom { text-align:center; border-top:1px solid rgba(255,255,255,0.2); padding-top:15px; margin-top:20px; opacity:0.7; }

/* RESPONSIVE */
@media(max-width:768px){
    .hero h1{ font-size:34px; }
    .hero p{ font-size:17px; }
    .footer-content { flex-direction:column; text-align:center; }
}