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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8fafc; /* Açık Gri Arka Plan */
    color: #334155;            /* Koyu Gri Yazı */
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- HEADER (MENÜ) --- */
header {
    background-color: #0f172a; /* Lacivert */
    color: #ffffff;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo span {
    color: #2563eb; /* Mavi Vurgu */
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: #ffffff;
    font-weight: 500;
    font-size: 1rem;
}

.nav-links a:hover {
    color: #2563eb; /* Mavi Hover */
}

.lang-switch a {
    margin-left: 10px;
    font-size: 0.85rem;
    opacity: 0.8;
    color: #ffffff;
}

.lang-switch a:hover {
    opacity: 1;
    color: #2563eb;
}

/* --- SLIDER (RESİMLER) --- */
.slider-container {
    position: relative;
    max-width: 100%;
    height: 500px;
    overflow: hidden;
    background: #000; /* Resim yoksa siyah görünür */
}

.slide {
    display: none;
    height: 100%;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    width: 80%;
    z-index: 2;
}

.slide-content h2 {
    font-size: 3rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.8);
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 25px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.8);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: #2563eb; /* Mavi Buton */
    color: white;
    border-radius: 5px;
    font-weight: bold;
}

.btn:hover {
    background: #1d4ed8; /* Koyu Mavi Hover */
}

/* Oklar */
.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    margin-top: -22px;
    color: white;
    font-weight: bold;
    font-size: 20px;
    transition: 0.6s ease;
    user-select: none;
    background-color: rgba(0,0,0,0.3);
}

.next {
    right: 0;
    border-radius: 3px 0 0 3px;
}

.prev:hover, .next:hover {
    background-color: rgba(0,0,0,0.8);
}

/* --- HİZMET KARTLARI (GRID) --- */
.section-padding {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2rem;
    color: #0f172a; /* Lacivert Başlık */
}

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

.card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    border-bottom: 4px solid #2563eb; /* Mavi Çizgi */
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card i {
    margin-bottom: 20px;
    color: #2563eb;
    font-size: 3rem;
}

.card h3 {
    margin-bottom: 15px;
    color: #0f172a;
}

/* --- FOOTER --- */
footer {
    background: #0f172a;
    color: #ffffff;
    text-align: center;
    padding: 20px 0;
    margin-top: 50px; /* Sayfa altında yapışmasın */
}