/* Purin-Log Web Application Styles */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #f59e0b;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.navbar {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: var(--primary-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.date-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}

.card-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.add-entry {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.add-entry h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.form-row {
    margin-bottom: 1rem;
}

.form-row label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-row input[type="text"],
.form-row input[type="number"],
.form-row input[type="date"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-row input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-results {
    position: absolute;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    width: calc(100% - 2rem);
    display: none;
    box-shadow: var(--shadow);
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
}

.search-result-item:hover {
    background-color: var(--background-color);
}

.selected-food {
    font-weight: 600;
    color: var(--primary-color);
}

.preview {
    color: var(--text-muted);
    font-style: italic;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-nav {
    background-color: var(--secondary-color);
    color: white;
}

.btn-nav:hover {
    background-color: #475569;
}

.btn-today {
    background-color: var(--success-color);
    color: white;
}

.btn-today:hover {
    background-color: #15803d;
}

.btn-add {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-add:hover:not(:disabled) {
    background-color: var(--primary-dark);
}

.btn-add:disabled {
    background-color: var(--secondary-color);
    cursor: not-allowed;
}

.btn-edit {
    background-color: var(--warning-color);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-edit:hover {
    background-color: #d97706;
}

.btn-delete {
    background-color: var(--danger-color);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-delete:hover {
    background-color: #b91c1c;
}

.entries-section {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.entries-section h3 {
    margin-bottom: 1rem;
}

.entries-table {
    width: 100%;
    border-collapse: collapse;
}

.entries-table th,
.entries-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.entries-table th {
    background-color: var(--background-color);
    font-weight: 600;
    color: var(--text-muted);
}

.entries-table tr:hover {
    background-color: var(--background-color);
}

.no-entries {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
    font-style: italic;
}

.chart-container {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-top: 1rem;
    height: 400px;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .date-nav {
        flex-wrap: wrap;
    }
    
    .entries-table {
        font-size: 0.875rem;
    }
    
    .entries-table th,
    .entries-table td {
        padding: 0.5rem;
    }
}