:root {
    --eoy-bg-color: #f4f7f9;
    --eoy-container-bg: #ffffff;
    --eoy-primary-color: #007bff;
    --eoy-secondary-color: #6c757d;
    --eoy-text-color: #333;
    --eoy-border-color: #e0e0e0;
    --eoy-success-color: #28a745;
    --eoy-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

#eoy-calculator-tool {
    font-family: var(--eoy-font-family);
    background-color: var(--eoy-container-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    max-width: 700px;
    margin: 20px auto;
    color: var(--eoy-text-color);
    border: 1px solid var(--eoy-border-color);
}

.eoy-header {
    text-align: center;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--eoy-border-color);
    padding-bottom: 15px;
}

.eoy-header h3 {
    margin: 0 0 5px 0;
    font-size: 1.5rem;
    color: var(--eoy-primary-color);
}

.eoy-header p {
    margin: 0;
    color: var(--eoy-secondary-color);
    font-size: 0.95rem;
}

.eoy-settings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

.eoy-input-group {
    display: flex;
    flex-direction: column;
}

.eoy-input-group.eoy-full-width {
    grid-column: 1 / -1;
}

.eoy-input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--eoy-secondary-color);
}

.eoy-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.eoy-input-wrapper input[type="date"],
.eoy-input-wrapper select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--eoy-border-color);
    border-radius: 6px;
    font-size: 1rem;
    background-color: var(--eoy-bg-color);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.eoy-input-wrapper input[type="date"]:focus,
.eoy-input-wrapper select:focus {
    outline: none;
    border-color: var(--eoy-primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.eoy-tooltip {
    margin-left: 10px;
    color: var(--eoy-secondary-color);
    cursor: help;
    position: relative;
    display: inline-block;
}

.eoy-tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    z-index: 10;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.2s;
}

.eoy-workdays-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px;
    background-color: var(--eoy-bg-color);
    border-radius: 6px;
}

.eoy-workdays-selector label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 0;
}

.eoy-results {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    padding-top: 20px;
    border-top: 1px solid var(--eoy-border-color);
}

.eoy-results.visible {
    opacity: 1;
    transform: translateY(0);
}

.eoy-main-metric {
    text-align: center;
    margin-bottom: 20px;
}

.eoy-days-remaining {
    font-size: 4rem;
    font-weight: 700;
    color: var(--eoy-primary-color);
    line-height: 1;
}

.eoy-main-metric .eoy-label {
    font-size: 1.1rem;
    color: var(--eoy-secondary-color);
}

.eoy-progress-container {
    margin-bottom: 25px;
}

.eoy-progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.eoy-progress-bar-background {
    width: 100%;
    height: 12px;
    background-color: var(--eoy-bg-color);
    border-radius: 6px;
    overflow: hidden;
}

.eoy-progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--eoy-success-color);
    border-radius: 6px;
    transition: width 1s ease-in-out;
}

.eoy-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.eoy-detail-card {
    background-color: var(--eoy-bg-color);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.eoy-detail-card h4 {
    margin: 0 0 10px 0;
    font-size: 1rem;
    color: var(--eoy-secondary-color);
    font-weight: 600;
}

.eoy-detail-card p {
    margin: 0 0 5px 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--eoy-text-color);
}

#eoy-live-countdown {
    font-size: 1.5rem;
}

.eoy-time-breakdown {
    font-size: 1.1rem !important;
    line-height: 1.5;
    font-weight: 500 !important;
}

.eoy-detail-card small {
    color: var(--eoy-secondary-color);
    font-size: 0.8rem;
}

.eoy-share-container {
    text-align: center;
    margin-top: 30px;
}

.eoy-button {
    background-color: var(--eoy-primary-color);
    color: #ffffff;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.eoy-button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}
.eoy-button:active {
    transform: translateY(0);
}

@media (max-width: 600px) {
    #eoy-calculator-tool {
        padding: 15px;
    }
    .eoy-settings {
        grid-template-columns: 1fr;
    }
    .eoy-details-grid {
        grid-template-columns: 1fr;
    }
    .eoy-days-remaining {
        font-size: 3rem;
    }
    .eoy-detail-card p {
        font-size: 1.75rem;
    }
     #eoy-live-countdown {
        font-size: 1.3rem;
    }
}