:root {
    --primary-color: #4a90e2;
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-color: #333;
    --border-radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 600px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 25px;
    border-bottom: 2px solid #eee;
    padding-bottom: 15px;
}

h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 0.9rem;
}

.input-control, select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    box-sizing: border-box;
    font-size: 1rem;
}

.btn {
    display: inline-block;
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    cursor: pointer;
    text-align: center;
}

.btn:active {
    opacity: 0.9;
}

.hidden {
    display: none !important;
}

.list-group {
    list-style: none;
    padding: 0;
    margin: 10px 0;
}

.list-group li {
    padding: 12px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    transition: background 0.2s;
}

.list-group li:hover {
    background-color: #f9f9f9;
}

.alert {
    color: #d32f2f;
    padding: 10px;
    background-color: #ffebee;
    border-radius: var(--border-radius);
    margin-top: 10px;
    text-align: center;
}

.alert-warning {
    color: #e67e22;
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

#loading {
    text-align: center;
    color: #666;
    padding: 20px;
}

.meal-list {
    display: grid;
    gap: 15px;
}

.meal-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.meal-date {
    font-weight: bold;
    color: #555;
    margin-bottom: 8px;
    display: block;
}

.meal-items {
    list-style: none;
    padding: 0;
    margin: 0;
    line-height: 1.6;
}

.meal-item {
    font-size: 0.95rem;
    color: #333;
}

@media (max-width: 480px) {
    body { padding: 10px; }
    .container { padding: 15px; }
}