:root {
    --bg: #f5f5f5;
    --text: #1a1a1a;
    --card: #ffffff;
    --accent: #5865F2;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1e1f22;
        --text: #e0e0e0;
        --card: #2b2d31;
    }
}

/* Manuel Değiştirme İçin Dark */
.dark {
    --bg: #1e1f22 !important;
    --text: #e0e0e0 !important;
    --card: #2b2d31 !important;
}

/* Manuel Değiştirme İçin Light */
.light {
    --bg: #f5f5f5 !important;
    --text: #1a1a1a !important;
    --card: #ffffff !important;
}

body {
    background: var(--bg);
    color: var(--text);
    margin: 0;
    font-family: "Segoe UI", sans-serif;
}

header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card);
    border-bottom: 1px solid #00000020;
}

#themeToggle {
    padding: 10px 15px;
    cursor: pointer;
    font-size: 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
}

.hero {
    text-align: center;
    padding: 80px 20px;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 20px;
    background: var(--accent);
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-size: 18px;
}

footer {
    margin-top: 80px;
    text-align: center;
    padding: 20px;
    background: var(--card);
}