/* style.css - Basic styling for Balaji Milk Agency app */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #4CAF50; /* Green */
    --primary-dark: #388E3C;
    --secondary-color: #FFC107; /* Amber */
    --background-color: #f4f7f6;
    --card-background: #ffffff;
    --text-color: #333;
    --light-text-color: #666;
    --border-color: #ddd;
    --danger-color: #f44336;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    padding: 15px;
}

.container {
    max-width: 960px;
    margin: 20px auto;
    background-color: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

h1, h2, h3 {
    color: var(--primary-dark);
    margin-bottom: 15px;
    text-align: center;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    margin: 0;
    font-size: 1.8em;
}

.nav-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
    justify-content: center;
}

.nav-buttons a, .btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95em;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav-buttons a:hover, .btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: #e0a800;
}

.btn-danger {
    background-color: var(--danger-color);
}

.btn-danger:hover {
    background-color: #c4322d;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: var(--card-background);
    border-radius: 8px;
    overflow: hidden; /* Ensures rounded corners apply to content */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

table th, table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85em;
}

table tr:last-child td {
    border-bottom: none;
}

table tbody tr:hover {
    background-color: #f0f0f0;
}

.actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.actions a, .actions button {
    padding: 6px 10px;
    font-size: 0.85em;
    border-radius: 6px;
}

form {
    background-color: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-top: 20px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--light-text-color);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    color: var(--text-color);
    background-color: #fcfcfc;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="date"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
    outline: none;
}

.message {
    padding: 12px;
    margin-bottom: 20px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.text-center {
    text-align: center;
}

/* Specific styles for invoice items */
.invoice-items-container {
    margin-top: 25px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background-color: #fdfdfd;
}

.invoice-item-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    align-items: flex-end;
    border-bottom: 1px dashed #eee;
    padding-bottom: 10px;
}

.invoice-item-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.invoice-item-row .form-group {
    flex: 1;
    min-width: 120px; /* Adjust as needed */
    margin-bottom: 0; /* Override default margin */
}

.invoice-item-row .form-group label {
    font-size: 0.9em;
    margin-bottom: 5px;
}

.invoice-item-row .btn-danger {
    align-self: center; /* Align with inputs */
    margin-top: 20px; /* Space from label */
    padding: 10px 12px;
}

.add-item-btn {
    margin-top: 15px;
    margin-bottom: 20px;
}

.total-summary {
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 1.1em;
    font-weight: 600;
}

.total-summary div {
    display: flex;
    justify-content: space-between;
}

.total-summary div span:first-child {
    color: var(--light-text-color);
}

.total-summary div span:last-child {
    color: var(--primary-dark);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container {
        margin: 10px auto;
        padding: 15px;
        border-radius: 8px;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .nav-buttons {
        width: 100%;
        justify-content: stretch;
    }

    .nav-buttons a, .btn {
        flex: 1; /* Make buttons fill available width */
        text-align: center;
        padding: 12px 15px;
    }

    table, .invoice-item-row {
        display: block;
        width: 100%;
    }

    table thead {
        display: none; /* Hide table headers on small screens */
    }

    table tr {
        margin-bottom: 15px;
        display: block;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 10px;
        background-color: var(--card-background);
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    table td {
        display: flex;
        justify-content: space-between;
        padding: 8px 0;
        border-bottom: 1px dashed #eee;
    }

    table td:last-child {
        border-bottom: none;
    }

    table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--light-text-color);
        margin-right: 10px;
    }

    .actions {
        justify-content: center;
        margin-top: 10px;
    }

    .invoice-item-row .form-group {
        width: 100%;
        min-width: unset;
    }

    .invoice-item-row .btn-danger {
        width: 100%;
        margin-top: 0;
    }
}

/* Print specific styles for A5 PDF */
@media print {
    body {
        margin: 0;
        padding: 0;
        font-size: 10pt; /* Smaller font for A5 */
        -webkit-print-color-adjust: exact; /* For background colors */
        color-adjust: exact;
    }

    .container {
        box-shadow: none;
        margin: 0;
        padding: 20mm; /* A5 margins */
        width: 148mm; /* A5 width */
        height: 210mm; /* A5 height */
        page-break-after: always; /* Each invoice on a new page */
    }

    /* Hide elements not needed for print */
    .nav-buttons, .actions, .add-item-btn, .form-group button, .message,
    .invoice-item-row .btn-danger, .btn-print-invoice {
        display: none !important;
    }

    .header {
        border-bottom: 2px solid var(--primary-dark);
        padding-bottom: 10px;
        margin-bottom: 20px;
        text-align: center;
    }

    .header h1 {
        font-size: 1.5em;
        color: #333;
    }

    table {
        margin-top: 15px;
        border: 1px solid #ccc;
    }

    table th, table td {
        padding: 8px 10px;
        border: 1px solid #eee;
    }

    table th {
        background-color: #f0f0f0;
        color: #333;
    }

    table tbody tr:hover {
        background-color: transparent;
    }

    .invoice-details, .customer-details, .total-summary {
        margin-bottom: 15px;
        font-size: 0.95em;
    }

    .invoice-details p, .customer-details p {
        margin-bottom: 5px;
    }

    .total-summary {
        border-top: 2px solid #ccc;
        padding-top: 10px;
        margin-top: 20px;
        font-size: 1.1em;
    }

    /* Ensure all content is visible */
    .invoice-item-row {
        display: flex; /* Keep flex for print layout */
        flex-wrap: nowrap; /* Prevent wrapping for print */
        gap: 10px;
        margin-bottom: 5px;
        padding-bottom: 5px;
        border-bottom: 1px dashed #eee;
    }

    .invoice-item-row .form-group {
        flex: 1;
        min-width: unset;
        margin-bottom: 0;
    }

    .invoice-item-row .form-group input,
    .invoice-item-row .form-group select {
        border: none;
        padding: 0;
        background: transparent;
        font-size: 0.95em;
    }
}