:root {
    --bg: #f5f5f7;
    --card: #ffffff;
    --text: #1d1d1f;
    --accent: #0071e3;
    --secondary: #86868b;
    --border: #d2d2d7;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Poppins", sans-serif; }

body { background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }

/* Bento Grid Sistemi */
.container { max-width: 1100px; margin: 0 auto; padding: 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.bento-card {
    background: var(--card);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.span-2 { grid-column: span 2; }
.span-4 { grid-column: span 4; }

@media (max-width: 768px) {
    .container { grid-template-columns: 1fr; }
    .span-2, .span-4 { grid-column: span 1; }
}

/* Apple Tarzı Butonlar */
.btn {
    padding: 12px 24px;
    border-radius: 980px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
}

.btn-blue { background: var(--accent); color: white; }
.btn-blue:hover { background: #0077ed; opacity: 0.9; }

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(10px);
}
.modal-content {
    background: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 30px;
    max-width: 450px;
    width: 90%;
}