* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    padding: 40px;
    backdrop-filter: blur(10px);
}

h1 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: #4a5568;
    font-weight: 300;
}

.calories-banner {
    text-align: center;
    background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
    color: white;
    padding: 60px 40px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
    transition: transform 0.3s ease;
}

.calories-banner:hover {
    transform: translateY(-5px);
}

.calories-number {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.calories-text {
    font-size: 1.3rem;
    opacity: 0.9;
}

.date-display {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: #4a5568;
    font-weight: 500;
}

.add-food-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.add-food-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #4a5568;
    text-align: center;
}

.add-food-form {
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: 15px;
    align-items: end;
    overflow: hidden;
}

.display-none {
  display: none;
}

.display-block {
  display: block;
}

.form-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

label {
    margin-bottom: 5px;
    font-weight: 600;
    color: #4a5568;
}

select, input {
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

select:focus, input:focus {
    outline: none;
    border-color: #667eea;
}

.add-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    height: fit-content;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

.food-table-section {
    background: white;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.table-title {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.table-wrapper {
    overflow-x: auto;
    overflow-y: visible;
}

.food-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.food-table th,
.food-table td {
    padding: 15px 10px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
    white-space: nowrap;
}

.food-table th {
    background: #f8fafc;
    font-weight: 600;
    color: #4a5568;
    font-size: 0.9rem;
}

.food-table tr:hover {
    background: #f7fafc;
}

.delete-btn {
    background: #ff6b6b;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background 0.3s ease;
}

.delete-btn:hover {
    background: #e55656;
}

.calendar-section {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.calendar-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-nav {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background 0.3s ease;
}

.calendar-nav:hover {
    background: rgba(255, 255, 255, 0.3);
}

.calendar-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: #e2e8f0;
}

.calendar-day-header {
    background: #f8fafc;
    padding: 15px 5px;
    text-align: center;
    font-weight: 600;
    color: #4a5568;
    font-size: 0.9rem;
}

.calendar-day {
    background: white;
    padding: 15px 5px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.calendar-day:hover {
    background: #f7fafc;
}

.calendar-day.other-month {
    color: #cbd5e0;
    background: #f8fafc;
}

.calendar-day.today {
    background: #667eea;
    /*color: white;*/
    font-weight: bold;
}

.calendar-day.selected {
    background: #4CAF50;
    color: white;
    font-weight: bold;
}

.calendar-day.has-data {
    background: #e6fffa;
    border: 2px solid #4ECDC4;
}

.calendar-day.has-data.selected {
    background: #4CAF50;
    border-color: #45a049;
}

.day-calories {
    font-size: 0.7rem;
    margin-top: 2px;
    opacity: 0.8;
}

.nutrition-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-top: 20px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 10px;
}

.nutrition-item {
    text-align: center;
    padding: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nutrition-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: #4a5568;
}

.nutrition-label {
    font-size: 0.8rem;
    color: #718096;
    margin-top: 2px;
}

.hidden-column {
    display: none;
}

@media (max-width: 768px) {
    .container {
        margin: 0px;
        padding: 15px;
    }

    .calories-number {
        font-size: 3rem;
    }

    .add-food-form {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .food-table {
        font-size: 0.8rem;
        min-width: 650px;
    }

    .food-table th,
    .food-table td {
        padding: 8px 5px;
        white-space: nowrap;
    }

    .table-wrapper {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }

    /* Optional: Add a subtle shadow to indicate scrollability */
    .table-wrapper::-webkit-scrollbar {
        height: 6px;
    }

    .table-wrapper::-webkit-scrollbar-track {
        background: #f1f1f1;
        border-radius: 3px;
    }
    
    .table-wrapper::-webkit-scrollbar-thumb {
        background: #c1c1c1;
        border-radius: 3px;
    }

    h1 {
        font-size: 2rem;
    }
}