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

body {
    font-family: 'Arial', sans-serif;
    background-color: #1a1a1a;
    color: #ffffff;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

footer {
    background: #2d2d2d;
    text-align: center;
    padding: 20px;
    border-top: 1px solid #404040;
    margin-top: auto;
}
/* NAVBAR */
.navbar {
    background: #2d2d2d;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #404040;
}

.nav-brand h1 {
    color: #00ff88;
    font-size: 24px;
}

.nav-menu a {
    color: #ffffff;
    text-decoration: none;
    margin-left: 20px;
    padding: 8px 16px;
    border-radius: 5px;
    transition: background 0.3s;
}

.nav-menu a:hover {
    background: #404040;
}

/* ANA SAYFA LAYOUT */
.container {
    display: grid;
    grid-template-columns: 70% 30%;
    gap: 20px;
    padding: 20px;
    min-height: 80vh;
}

.sol-bolum {
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 20px;
}

.ust-kutular {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 15px;
}

.veri-kutu {
    background: #2d2d2d;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #404040;
    transition: transform 0.3s;
}

.veri-kutu:hover {
    transform: translateY(-2px);
}

.veri-baslik {
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
}

.veri-fiyat {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #00ff88;
}

.veri-degisim {
    font-size: 14px;
    color: #ccc;
}

.borsa-alani, .sag-panel {
    background: #2d2d2d;
    border-radius: 10px;
    padding: 20px;
    border: 1px solid #404040;
}

.hizmet-item {
    margin-bottom: 20px;
    padding: 15px;
    background: #404040;
    border-radius: 8px;
}

.hizmet-item h3 {
    color: #00ff88;
    margin-bottom: 8px;
}

/* DOVIZ SAYFALARI */
.page-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

.page-header h1 {
    color: #00ff88;
    margin-botto