.cron-builder {
    max-width: 720px;
    margin: 0 auto;
    font-family: inherit;
    color: inherit;
}

/* Expression bar */
.cron-expression-bar {
    margin-bottom: 1.5em;
}

.cron-fields {
    display: flex;
    gap: 0.4em;
}

.cron-field {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2em;
}

.cron-field input {
    width: 100%;
    text-align: center;
    padding: 0.5em 0.3em;
    font-size: 1.1em;
    font-family: monospace;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 4px;
    background: transparent;
    color: inherit;
}

.cron-field input:focus {
    outline: 2px solid rgba(255, 255, 255, .4);
    outline-offset: -1px;
}

.cron-field span {
    font-size: 0.75em;
    opacity: 0.6;
}

.cron-readable {
    margin-top: 0.6em;
    font-size: 0.95em;
    opacity: 0.85;
    min-height: 1.4em;
}

/* Tabs */
.cron-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1em;
}

.cron-tab {
    flex: 1;
    padding: 0.5em 0.3em;
    font-size: 0.85em;
    font-family: inherit;
    border: 1px solid rgba(255, 255, 255, .25);
    background: transparent;
    color: inherit;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.cron-tab:first-child {
    border-radius: 4px 0 0 4px;
}

.cron-tab:last-child {
    border-radius: 0 4px 4px 0;
}

.cron-tab + .cron-tab {
    border-left: none;
}

.cron-tab-active {
    opacity: 1;
    font-weight: 600;
    border-color: rgba(255, 255, 255, .5);
}

/* Panel */
.cron-mode {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
    margin-bottom: 0.8em;
}

.cron-mode label {
    display: flex;
    align-items: center;
    gap: 0.4em;
    font-size: 0.9em;
    cursor: pointer;
}

.cron-small-input {
    width: 50px;
    padding: 0.25em 0.4em;
    font-size: 0.9em;
    font-family: inherit;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 3px;
    background: transparent;
    color: inherit;
    text-align: center;
}

/* Grid */
.cron-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3em;
}

.cron-grid-btn {
    min-width: 38px;
    padding: 0.35em 0.5em;
    font-size: 0.85em;
    font-family: inherit;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 3px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.15s, border-color 0.15s;
    text-align: center;
}

.cron-grid-btn:hover {
    opacity: 0.9;
}

.cron-grid-btn-active {
    opacity: 1;
    border-color: rgba(255, 255, 255, .6);
    font-weight: 600;
}

/* Output */
.cron-output-section {
    margin-top: 1.5em;
}

.cron-output-section h3 {
    margin: 0 0 0.5em;
}

.cron-output-wrap {
    position: relative;
}

.cron-output {
    padding: 1em;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 4px;
    font-family: monospace;
    font-size: 1em;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
}

.cron-copy-btn {
    position: absolute;
    top: 0.5em;
    right: 0.5em;
    padding: 0.3em 0.5em;
    font-size: 0.85em;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 3px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.cron-copy-btn:hover {
    opacity: 1;
}

.cron-next {
    margin-top: 0.6em;
    font-size: 0.85em;
    opacity: 0.7;
}

/* Presets */
.cron-presets {
    margin-top: 2em;
}

.cron-presets h3 {
    margin: 0 0 0.6em;
}

.cron-preset-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4em;
}

.cron-preset {
    padding: 0.4em 0.8em;
    font-size: 0.85em;
    font-family: inherit;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 4px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.cron-preset:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 480px) {
    .cron-fields {
        flex-wrap: wrap;
    }

    .cron-field {
        flex: 0 0 calc(33.33% - 0.3em);
    }

    .cron-tabs {
        flex-wrap: wrap;
    }

    .cron-tab {
        flex: 0 0 calc(33.33% - 0);
        border-radius: 0;
        border-left: 1px solid rgba(255, 255, 255, .25);
    }

    .cron-preset-grid {
        flex-direction: column;
    }

    .cron-preset {
        width: 100%;
        text-align: left;
    }
}