:root { --p: #22c55e; --main: #0ea5e9; --dark: #0f172a; --bg: #f8fafc; }
body { margin:0; font-family: 'Plus Jakarta Sans', sans-serif; background: var(--bg); color: #1e293b; line-height:1.6; scroll-behavior: smooth; }
.container { max-width: 1100px; margin: auto; padding: 0 20px; }

/* Nav & Hero */
nav { background: #fff; padding: 15px 0; border-bottom: 1px solid #e2e8f0; position: sticky; top:0; z-index:99; }
.flex-nav { display:flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 800; font-size: 24px; color: var(--main); text-decoration: none; }
.menu a { text-decoration: none; color: #334155; margin-left: 20px; font-weight: 600; }
.hero { background: linear-gradient(135deg, #0ea5e9, #0369a1); color: #fff; padding: 80px 0; text-align: center; border-radius: 0 0 40px 40px; }

/* Grid & Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; margin: 40px 0; }
.card { background: #fff; border-radius: 20px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); overflow: hidden; border: 1px solid #f1f5f9; }
.card img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: 25px; }

/* Form */
.contact-form { padding: 30px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 14px; margin-bottom: 15px; border: 1px solid #e2e8f0; border-radius: 12px; box-sizing: border-box; font-family: inherit; }
.contact-form button { width: 100%; background: var(--main); color: #fff; padding: 16px; border: none; border-radius: 12px; font-weight: bold; cursor: pointer; transition: 0.3s; }
.contact-form button:hover { background: #0284c7; transform: translateY(-2px); }

/* PROFESYONEL BİLDİRİM (SUCCESS MODAL) */
#success-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.7); backdrop-filter: blur(10px);
    display: none; align-items: center; justify-content: center; z-index: 9999;
}
.success-card {
    background: white; padding: 40px; border-radius: 30px; text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); max-width: 320px; width: 90%;
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.check-circle {
    width: 80px; height: 80px; border-radius: 50%; border: 4px solid #f0fdf4;
    border-top: 4px solid var(--p); margin: 0 auto 20px;
    display: flex; align-items: center; justify-content: center;
    animation: spin 1s linear infinite; /* Çember sürekli döner */
}
.check-icon {
    font-size: 40px; color: var(--p);
    animation: checkAppear 0.4s 0.3s both cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
@keyframes popIn { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }
@keyframes checkAppear { from { transform: scale(0) rotate(-45deg); opacity: 0; } to { transform: scale(1) rotate(0); opacity: 1; } }

/* Footer */
footer { background: var(--dark); color: #f1f5f9; padding: 60px 0 20px 0; margin-top: 80px; }
.footer-sections { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; }
.f-col h3 { color: var(--main); margin-bottom: 20px; font-size: 1.1rem; }
.final-copyright { text-align: center; margin-top: 50px; padding-top: 20px; border-top: 1px solid #1e293b; font-size: 0.8rem; opacity: 0.5; }