/* --- GLASS WAVE DEĞİŞKENLERİ --- */
:root {
    --bg-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); /* Derin Okyanus Mavisi */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --text-light: #ffffff;
    --text-dim: #e0e0e0;
    --accent-color: #00d2ff; /* Parlak Camgöbeği Vurgu */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --max-width: 1200px;
}

/* --- RESET --- */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background: var(--bg-gradient);
    color: var(--text-light);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700&family=Open+Sans:wght@400;600&display=swap');

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { width: 100%; height: auto; display: block; border-radius: 10px; }

/* --- GLASSMORPHISM COMPONENTS --- */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
    padding: 30px;
}

.glass-header {
    background: rgba(30, 60, 114, 0.8); /* Daha koyu cam */
    backdrop-filter: blur(10px);
    border-bottom: var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* --- WAVE SVG DIVIDER --- */
.wave-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    margin-top: -2px; /* Çizgi oluşmasını engellemek için */
}

.wave-container svg {
    position: relative;
    display: block;
    width: calc(130% + 1.3px);
    height: 100px;
}

.wave-container .shape-fill {
    fill: rgba(255, 255, 255, 0.05); /* Hafif şeffaf dalga */
}

/* --- HEADER & NAV --- */
.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span { color: var(--accent-color); }

.nav-links { display: flex; gap: 30px; }

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: ''; position: absolute; width: 0; height: 2px;
    bottom: 0; left: 0; background-color: var(--accent-color);
    transition: 0.3s;
}

.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* Mobil Menü */
.burger { display: none; cursor: pointer; }
.burger div { width: 25px; height: 3px; background-color: var(--text-light); margin: 5px; transition: 0.3s; }

/* --- LAYOUTS --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 20px;
    flex: 1;
}

.section { margin-bottom: 80px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
    font-family: var(--font-heading);
    margin-bottom: 20px;
    line-height: 1.2;
}

h1 { font-size: 3rem; text-shadow: 0 4px 10px rgba(0,0,0,0.3); }
h2 { font-size: 2.2rem; text-align: center; position: relative; padding-bottom: 15px; }
h2::after {
    content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
    width: 60px; height: 4px; background: var(--accent-color); border-radius: 2px;
}

p { margin-bottom: 20px; color: var(--text-dim); }

/* --- COMPONENTS --- */
.btn {
    display: inline-block;
    padding: 12px 35px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 1px solid var(--accent-color);
    border-radius: 50px;
    font-weight: 600;
    transition: 0.3s;
    backdrop-filter: blur(5px);
}

.btn:hover {
    background: var(--accent-color);
    color: #1e3c72;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
}

.glass-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    padding: 30px;
    border-radius: 16px;
    transition: transform 0.3s;
    backdrop-filter: blur(10px);
}

.glass-card:hover { transform: translateY(-5px); border-color: var(--accent-color); }

.icon-box svg { width: 50px; height: 50px; fill: var(--accent-color); margin-bottom: 20px; }

/* --- FORMS --- */
.form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 8px; font-weight: 600; color: var(--accent-color); }
input, textarea, select {
    width: 100%;
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border: var(--glass-border);
    border-radius: 10px;
    color: var(--text-light);
    font-family: inherit;
    font-size: 1rem;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent-color); background: rgba(0, 0, 0, 0.4); }

/* --- FOOTER --- */
footer {
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-top: var(--glass-border);
    padding: 60px 0 20px;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.footer-col h4 { color: var(--accent-color); margin-bottom: 20px; font-size: 1.2rem; }
.footer-col a { display: block; margin-bottom: 10px; color: var(--text-dim); }
.footer-col a:hover { color: var(--text-light); padding-left: 5px; }

.tr-phone {
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute; top: 100%; left: 0; width: 100%;
        background: rgba(30, 60, 114, 0.95);
        backdrop-filter: blur(15px);
        flex-direction: column; padding: 20px; text-align: center;
        border-bottom: var(--glass-border);
    }
    .nav-links.active { display: flex; }
    .burger { display: block; }
    
    .grid-2 { grid-template-columns: 1fr; }
    h1 { font-size: 2.2rem; text-align: center; }
    .hero p { text-align: center; }
    .hero .btn { display: table; margin: 0 auto; }
    
    .footer-content { flex-direction: column; text-align: center; }
    .tr-phone { justify-content: center; }
}