:root {
    --bg-color: #ffffff;
    --text-primary: #222222;
    --text-secondary: #777777;
    --accent-red: #d9534f;
    --accent-green: #28a745;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-primary: #e0e0e0;
        --text-secondary: #aaaaaa;
    }
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    height: 100vh;
    overflow-x: hidden;
}

.wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}
.logo { font-size: 1.5rem; font-weight: 700; letter-spacing: -1px; }
.logo small { font-weight: 300; opacity: 0.6; }

/* Main Clock Area */
.clock-container {
    text-align: center;
    padding: 6vh 0 4vh 0;
}

#location-name {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

#main-clock {
    font-size: clamp(4rem, 18vw, 11rem); /* Responsive yazı boyutu */
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums; /* Rakamların oynamasını engeller */
}

#main-clock.loading { opacity: 0.2; }

#current-date {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-secondary);
    margin-top: 10px;
}

/* Sync Status */
#sync-status {
    margin-top: 30px;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    border-radius: 20px;
    background: rgba(128,128,128, 0.1);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background-color: orange; display: inline-block; }
.synced .dot { background-color: var(--accent-green); }
.error .dot { background-color: var(--accent-red); }

/* World Grid */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 20px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(128,128,128, 0.2);
}

.city-card {
    padding: 15px;
    border-radius: 8px;
    transition: background 0.2s;
}
.city-card:hover { background: rgba(128,128,128, 0.05); }

.city-name {
    display: block;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}
.city-time {
    display: block;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -1px;
    font-variant-numeric: tabular-nums;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 40px 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.6;
}