/* GENEL AYARLAR */
html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background: #000;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* ARKA PLAN CANVAS (YILDIZLAR) */
#starCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1; /* En altta */
    pointer-events: none;
    background: radial-gradient(ellipse at center, #0a2e38 0%, #000000 70%);
}

/* İÇERİK KATMANI (YILDIZLARIN ÜSTÜNDE DURMASI İÇİN) */
header, section, footer {
    position: relative;
    z-index: 10;
}

/* HEADER */
header {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    border-bottom: 1px solid rgba(135, 224, 255, 0.1);
    position: sticky;
    top: 0;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    color: #87e0ff;
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #87e0ff;
}

/* HERO SECTION */
.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(10, 175, 230, 0.5);
}

.hero p {
    font-size: 1.1rem;
    color: #a0c4d1;
    max-width: 600px;
}

.btn {
    margin-top: 30px;
    padding: 12px 30px;
    background: transparent;
    border: 1px solid #87e0ff;
    color: #87e0ff;
    text-decoration: none;
    border-radius: 50px;
    transition: 0.3s;
}

.btn:hover {
    background: #87e0ff;
    color: #000;
}

/* PROJELER */
.project-section {
    max-width: 1100px;
    margin: 50px auto 150px auto;
    padding: 0 20px;
}

.project-section h2 {
    text-align: center;
    color: #87e0ff;
    margin-bottom: 40px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: rgba(135, 224, 255, 0.05);
    border: 1px solid rgba(135, 224, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(5px);
    transition: 0.3s;
}

.project-card:hover {
    border-color: #87e0ff;
    transform: translateY(-5px);
}

.details-btn {
    display: inline-block;
    margin-top: 15px;
    color: #87e0ff;
    text-decoration: none;
    font-weight: bold;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.9);
}