/* General styles and resets */
:root {
    --primary-color: #4CAF50; /* Green */
    --secondary-color: #2196F3; /* Blue */
    --accent-color: #FFC107; /* Amber */
    --text-color: #333;
    --background-color: #f4f7f6;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.app-header {
    background-color: #fff;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.app-header h1 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.8em;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info span {
    font-weight: bold;
    color: #555;
}

.action-button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
}

.action-button:hover {
    background-color: #1976D2; /* Darker blue */
}

.primary-button {
    background-color: var(--primary-color);
}

.primary-button:hover {
    background-color: #388E3C; /* Darker green */
}

.guidelines {
    text-align: center;
    margin-top: 10px;
    font-size: 0.85em;
    color: #666;
}

.app-main {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 20px auto;
}

.meal-plan-section,
.menu-library-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow-color);
    flex: 1;
    min-width: 300px;
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-top: 0;
}

.controls {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}

.meal-plan-config,
.menu-search-filter {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.meal-plan-config label,
.menu-search-filter label {
    font-weight: bold;
    margin-right: 5px;
}

.meal-plan-config input,
.meal-plan-config select,
.menu-search-filter input,
.menu-search-filter select {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    flex-grow: 1;
    max-width: 200px;
}

.config-info, .interaction-tip, .hint {
    font-size: 0.8em;
    color: #888;
    margin-top: 5px;
    flex-basis: 100%; /* Take full width */
}

/* Modals */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 30px;
    border: 1px solid #888;
    border-radius: 10px;
    width: 80%; /* Could be more specific */
    max-width: 500px;
    box-shadow: 0 4px 10px var(--shadow-color);
    position: relative;
}

.modal-content h3 {
    margin-top: 0;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.modal-content label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.modal-content input[type="text"],
.modal-content input[type="password"],
.modal-content input[type="url"],
.modal-content select {
    width: calc(100% - 16px); /* Adjust for padding */
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    top: 10px;
    right: 20px;
    cursor: pointer;
}

.close-button:hover,
.close-button:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .user-info {
        margin-top: 10px;
        flex-wrap: wrap;
    }

    .app-main {
        flex-direction: column;
        padding: 10px;
    }

    .meal-plan-section,
    .menu-library-section {
        margin-bottom: 20px;
    }
}