.calendar-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    margin-bottom: 1rem;
}

.calendar-header h1 {
    margin: 0;
    font-size: 1.5rem;
    color: #333;
}

.logout-link {
    color: #dc3545;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.logout-link:hover {
    background-color: #f8d7da;
    text-decoration: none;
}

.calendar-header button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.calendar-header button:hover {
    background: #45a049;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.calendar-day-name {
    text-align: center;
    padding: 10px;
    font-weight: bold;
    color: #666;
    background: #f5f5f5;
    border-radius: 4px;
}

.calendar-day {
    aspect-ratio: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.calendar-day:hover {
    background: #f0f0f0;
}

.calendar-day.empty {
    background: #f9f9f9;
    cursor: default;
}

.calendar-day.empty:hover {
    background: #f9f9f9;
}

.calendar-day.current-day {
    border: 2px solid #2196F3;
    background-color: #E3F2FD;
}

.calendar-day.current-day .day-number {
    font-weight: bold;
    color: #2196F3;
}

.day-number {
    font-weight: bold;
    margin-bottom: 4px;
}

.work-info {
    font-size: 0.8em;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.work-time-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Reports Page Styles */
.reports-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.report-section {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.report-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    align-items: flex-end;
}

.report-filters .form-group {
    flex: 1;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.report-table th,
.report-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.report-table th {
    background-color: #f8f9fa;
    font-weight: bold;
}

.report-table tr:hover {
    background-color: #f5f5f5;
}

.header-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: #333;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.nav-link:hover {
    background-color: #f0f0f0;
    text-decoration: none;
}

.btn-primary {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #45a049;
}

#backupBtn {
    background-color: #2196F3;
}

#backupBtn:hover {
    background-color: #1976D2;
}

/* Mobile-first styles */
@media (max-width: 768px) {
    .calendar-container {
        padding: 10px;
        margin: 0;
        border-radius: 0;
    }

    .calendar-header {
        flex-direction: column;
        gap: 10px;
        padding: 0.5rem;
    }

    .calendar-header h1 {
        font-size: 1.2rem;
        text-align: center;
    }

    .header-links {
        width: 100%;
        justify-content: center;
        gap: 10px;
    }

    .calendar-grid {
        gap: 4px;
    }

    .calendar-day-name {
        padding: 5px;
        font-size: 0.8rem;
    }

    .calendar-day {
        padding: 4px;
        font-size: 0.9rem;
    }

    .work-info {
        font-size: 0.7rem;
    }

    .report-filters {
        flex-direction: column;
        gap: 10px;
    }

    .report-filters .form-group {
        width: 100%;
    }

    .report-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .report-table th,
    .report-table td {
        padding: 8px;
        font-size: 0.9rem;
    }

    .btn-primary {
        width: 100%;
        padding: 10px;
    }

    .form-group input,
    .form-group select {
        padding: 10px;
        font-size: 16px; /* Larger for mobile touch */
    }

    #backupBtn {
        width: auto;
        margin: 0 5px;
    }
}

/* Tablet styles */
@media (min-width: 769px) and (max-width: 1024px) {
    .calendar-container {
        max-width: 95%;
    }

    .calendar-grid {
        gap: 6px;
    }
}

.loading, .error {
    text-align: center;
    padding: 2rem;
    font-size: 1.2rem;
    color: #666;
}

.loading {
    animation: pulse 1.5s infinite;
}

.error {
    color: #dc3545;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}