/* ORTAK DEĞİŞKENLER VE SIFIRLAMA */
:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --bg: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --nav-height: 80px;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0; padding-top: var(--nav-height);
    background: var(--bg); color: var(--text-main);
}

/* NAVBAR STİLLERİ */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
    background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border); z-index: 1000;
    display: flex; align-items: center; justify-content: center;
}

.nav-container {
    width: 100%; max-width: 1200px; padding: 0 24px;
    display: flex; justify-content: space-between; align-items: center;
}

.brand { font-size: 1.5rem; font-weight: 800; color: var(--text-main); text-decoration: none; }
.brand span { color: var(--primary); }

.nav-links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
    text-decoration: none; color: var(--text-main); font-weight: 600; font-size: 0.95rem;
    transition: color 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.nav-btn {
    background: var(--primary); color: white !important; padding: 10px 20px;
    border-radius: 12px; transition: all 0.3s; box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}
.nav-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }

.menu-toggle { display: none; font-size: 1.5rem; cursor: pointer; }

@media (max-width: 900px) {
    .menu-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; top: var(--nav-height); left: 0; width: 100%;
        background: white; flex-direction: column; padding: 20px; border-bottom: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
}