.clock-tool .tool-page-header {
    margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.clock-app {
    display: grid;
    gap: 1rem;
    padding: clamp(1rem, 3vw, 1.5rem);
    border: 1px solid var(--color-table-border);
    border-radius: 8px;
    background:
        radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--color-accent) 18%, transparent), transparent 34rem),
        var(--color-table-bg);
}

.clock-app__display {
    display: grid;
    justify-items: center;
    gap: clamp(0.65rem, 1.6vw, 1rem);
    min-height: clamp(18rem, 48vw, 32rem);
    padding: clamp(1.25rem, 5vw, 3rem);
    border: 1px solid color-mix(in srgb, var(--color-table-border) 80%, transparent);
    border-radius: 8px;
    background: color-mix(in srgb, var(--color-bg) 74%, transparent);
    text-align: center;
}

.clock-app__label,
.clock-app__timezone {
    margin: 0;
    color: var(--color-subtext);
    font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.08rem);
    font-weight: 650;
}

.clock-app__time {
    display: block;
    width: 100%;
    color: var(--color-heading);
    font-size: clamp(3.4rem, 15vw, 10rem);
    font-variant-numeric: tabular-nums;
    font-weight: 800;
    letter-spacing: 0;
    line-height: 0.95;
}

.clock-app__date {
    color: var(--color-text);
    font-size: clamp(1.2rem, 2.6vw, 2rem);
    font-weight: 700;
    line-height: 1.25;
}

.clock-app__timezone {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.35rem;
}

.clock-app__timezone strong {
    color: var(--color-text);
    font-weight: 700;
}

.clock-app__controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.85rem;
}

.clock-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--color-text);
    font-weight: 650;
}

.clock-toggle input {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--color-accent);
}

.clock-app__fullscreen {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.clock-app.is-date-hidden .clock-app__date {
    display: none;
}

.clock-app:fullscreen {
    width: 100vw;
    height: 100vh;
    align-content: center;
    padding: clamp(1rem, 3vw, 2rem);
    border: 0;
    border-radius: 0;
    background: var(--color-bg);
}

.clock-app:fullscreen .clock-app__display {
    min-height: min(76vh, 48rem);
}

.clock-app:fullscreen .clock-app__time {
    font-size: clamp(4rem, 18vw, 14rem);
}

.clock-app:fullscreen .clock-app__controls {
    justify-content: center;
}

@media (max-width: 640px) {
    .clock-app__display {
        min-height: 17rem;
    }

    .clock-app__controls {
        align-items: stretch;
        flex-direction: column;
    }

    .clock-toggle,
    .clock-app__fullscreen {
        width: 100%;
        justify-content: center;
    }
}