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

body {
    background-color: #87CEEB; /* Sky Blue */
    color: #ffffff;
    font-family: 'Segoe UI', sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px; /* Mobil cihazlarda kenarlara yapışmaması için */
}

.center-wrapper {
    width: 100%;
    max-width: 800px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.clock-card {
    width: 100%;
    background: rgba(0, 0, 0, 0.1);
    padding: 3rem 2rem;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

h2 {
    letter-spacing: 5px;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

/* responsive saat boyutu */
.time-box {
    font-size: clamp(3.5rem, 15vw, 8rem); /* Ekran küçüldükçe küçülür, büyüdükçe büyür */
    font-weight: 800;
    display: flex;
    align-items: baseline;
    justify-content: center;
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.seconds-digit {
    font-size: clamp(1.5rem, 6vw, 3rem);
    margin-left: 0.5rem;
    font-weight: 300;
}

#date {
    margin-top: 1.5rem;
    font-size: clamp(1rem, 4vw, 1.2rem);
    opacity: 0.9;
}

/* Footer Responsive */
.site-footer p {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.instagram-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: 0.3s;
}

/* MOBİL ÖZEL AYARLAR (Ekran 600px'den küçükse) */
@media (max-width: 600px) {
    .clock-card {
        padding: 2rem 1rem;
        border-radius: 20px;
    }
    
    .center-wrapper {
        gap: 1.5rem;
    }
}

.colon { animation: blink 1.5s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }