:root {
    --primary-color: #0ea5e9;
    --primary-light: #38bdf8;
    --secondary-color: #ff8f00;
    --accent-color: #0284c7;
    --danger-color: #d32f2f;
    --text-color-light: #ffffff;
    --text-color-dark: #333333;
    --bg-color: #eceff1;
    --card-bg: #ffffff;
    --border-radius-sm: 2px;
    --border-radius-lg: 3px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --border-color: #cfd8dc;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color-dark);
    font-size: 12px; /* Realistic software base font size */
}

body {
    background-color: var(--bg-color);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bg-color);
}

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.modern-navbar {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
    margin-top: 1.25rem;
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
}

.modern-navbar::-webkit-scrollbar {
    display: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 0.95rem !important;
    border-radius: 8px !important;
    color: rgba(255, 255, 255, 0.85) !important;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600 !important;
    font-size: 12.5px !important;
    border: 1px solid transparent !important;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    margin-bottom: 0 !important;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.14) !important;
    color: #ffffff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.22) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
}

/* Elegant bottom accent dot/line for active link */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
    opacity: 0;
}

.nav-link.active::after {
    width: 16px;
    opacity: 1;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.nav-link svg {
    margin-right: 0.45rem;
    fill: currentColor;
    width: 14px !important;
    height: 14px !important;
    color: rgba(255, 255, 255, 0.85);
    transition: transform 0.25s ease, color 0.25s ease;
    flex-shrink: 0;
}

.nav-link span {
    color: inherit;
    font-size: 12.5px !important;
    transition: color 0.25s ease;
}

.nav-link:hover svg {
    transform: scale(1.15);
    color: #ffffff !important;
}

.main-content {
    flex-grow: 1;
    padding: 1rem;
    overflow-y: auto;
    position: relative;
}

h1 {
    font-size: 18px;
    color: #263238;
    font-weight: 600;
    margin-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 4px;
    display: inline-block;
}

h2 {
    font-size: 14px;
    color: #37474f;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 3px;
    margin-top: 1rem;
}

h3 {
    font-size: 13px;
    color: #455a64;
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-row h1 {
    margin-bottom: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}
.view {
    display: none;
}
.view.active {
    display: block;
    animation: fadeIn 0.22s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.dashboard-card {
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-top: 3px solid var(--primary-color);
}

.card-icon {
    font-size: 18px;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.card-title {
    font-size: 11px;
    font-weight: 600;
    color: #546e7a;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.card-value {
    font-size: 18px;
    font-weight: 700;
    color: #263238;
}

.today-sales-card {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: #e1f5fe;
    border-top: 3px solid #0288d1;
}

.today-sales-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.today-sales-item .card-value {
    font-size: 18px;
    color: #0288d1;
}

form {
    background-color: var(--card-bg);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 0.5rem;
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 0.2rem;
    font-weight: 600;
    color: #455a64;
}

input, select, textarea {
    width: 100%;
    padding: 0.2rem 0.4rem;
    border: 1px solid #b0bec5;
    border-radius: var(--border-radius-sm);
    background-color: #ffffff;
    height: 24px;
    transition: border-color 0.2s ease;
}

textarea {
    height: auto;
    padding: 0.4rem;
    resize: vertical;
}

input[type="radio"], input[type="checkbox"] {
    width: auto;
    height: auto;
    display: inline-block;
    padding: 0;
    margin-right: 0.4rem;
    vertical-align: middle;
    cursor: pointer;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: inset 0 0 0 1px var(--primary-color);
}

input[readonly] {
    background-color: #f5f5f5;
    color: #757575;
}

button {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    height: 26px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    transition: background-color 0.2s ease;
}

.btn-primary {
    background-color: #039be5;
    border-color: #0288d1;
    color: white;
}

.btn-primary:hover { background-color: #0288d1; }

.btn-success {
    background-color: #43a047;
    border-color: #2e7d32;
    color: white;
}

.btn-success:hover { background-color: #388e3c; }

.btn-danger {
    background-color: #e53935;
    border-color: #c62828;
    color: white;
}

.btn-danger:hover { background-color: #d32f2f; }

.status-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
    background: var(--card-bg);
    padding: 0.4rem 0.75rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    align-items: center;
}

.status-filters label {
    display: flex;
    align-items: center;
    margin-bottom: 0;
    cursor: pointer;
    font-weight: normal;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
}

th, td {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    text-align: left;
    height: 24px;
    vertical-align: middle;
}

th {
    background-color: #e0e0e0;
    color: #212121;
    font-weight: 600;
    white-space: nowrap;
}

tr:nth-child(even) { background-color: #f9f9f9; }
tr:hover { background-color: #f1f5f9; }

.stock-table-container th:first-child, .stock-table-container td:first-child {
    width: 30px;
    text-align: center;
}

.action-buttons {
    display: flex;
    gap: 4px;
    flex-wrap: nowrap;
    align-items: center;
}

.action-buttons button {
    height: 24px;
    padding: 0 0.4rem;
    font-size: 11px;
    white-space: nowrap;
}

.btn-icon {
    font-size: 14px;
    padding: 2px 4px;
    height: 22px;
    background: transparent;
    border: none;
    color: #546e7a;
}
.btn-icon:hover { color: var(--primary-color); }
.btn-icon svg { width: 14px; height: 14px; }

/* Editable inputs inside Invoice & Quotation Tables */
.edit-qty-input, .edit-price-input {
    width: 100%;
    padding: 0.1rem 0.25rem;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    height: 20px;
    text-align: center;
    background-color: #fff;
    min-width: 60px;
}

.edit-qty-input:focus, .edit-price-input:focus {
    border-color: var(--primary-color);
    box-shadow: inset 0 0 0 1px var(--primary-color);
}

#invoice-items-table th, #invoice-items-table td,
#quotation-items-table th, #quotation-items-table td {
    text-align: center;
}

.low-stock-list {
    list-style-type: none;
    padding: 0;
    margin: 0.5rem 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
}
.low-stock-list li {
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.low-stock-list li:last-child { border-bottom: none; }
.low-stock-list li span:last-child {
    font-weight: bold;
    color: var(--danger-color);
}

#loader-container {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px; height: 40px;
    animation: spin 1s linear infinite;
}
@keyframes spin { 100% { transform: rotate(360deg); } }

.alert-box {
    position: fixed;
    top: 20px;
    right: 20px;
    left: auto;
    transform: translateY(-20px);
    background-color: #43a047;
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000000;
    font-size: 16px !important;
    font-weight: 700 !important;
    text-align: center;
    pointer-events: none;
}
.alert-box.show { opacity: 1; transform: translateY(0); }
.alert-box.danger { background-color: #e53935; }
.alert-box * { color: white; font-size: 16px !important; font-weight: 700 !important; }

.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0; top: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}
.modal-content {
    background-color: var(--card-bg);
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    width: 90%;
    max-width: 500px;
    position: relative;
}

/* White background for invoice bills specifically */
#invoice-details-container, .print-view {
    background-color: #ffffff !important;
}

.close-btn {
    position: absolute;
    top: 4px; right: 14px;
    color: #90a4ae;
    font-size: 38px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s, transform 0.2s;
}
.close-btn:hover {
    color: var(--danger-color);
    transform: scale(1.1);
}

#invoice-modal .close-btn {
    font-size: 52px;
    top: -4px;
    right: 18px;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}
.chart-card {
    background-color: var(--card-bg);
    padding: 1rem;
    border: 1px solid var(--border-color);
}
.chart-card h3 {
    text-align: center;
    margin-bottom: 0.5rem;
    border: none;
}
.chart-container {
    position: relative;
    height: 200px;
    width: 100%;
}

@media (max-width: 768px) {
    .form-row { flex-direction: column; gap: 0; }
    .dashboard-card { flex-direction: row; justify-content: space-between; }
    .dashboard-card .card-value { font-size: 16px; }
    .dashboard-card .card-icon { margin-bottom: 0; }
}

@media print {
    body > *:not(.print-view) { display: none !important; }
    body { background-color: #fff; color: #000; font-size: 11px !important; }
    
    .print-view {
        display: block !important;
        position: static; width: 100%; height: auto;
    }
    
    .invoice-header {
        text-align: center;
        margin-bottom: 1rem;
        position: relative !important;
        min-height: 100px !important;
        padding: 0 100px !important; 
    }
    .invoice-header h1 {
        font-size: 26px !important; /* Increased Header Font Size */
        font-weight: bold !important;
        color: #000 !important;
        border: none !important;
        margin-bottom: 2px !important;
    }
    .invoice-header p { margin: 2px 0 !important; font-size: 11px !important; }
    
    #invoice-top-logo, #quotation-top-logo, #report-top-logo {
        position: absolute !important;
        top: 0 !important; left: 0 !important;
        width: 80px !important; height: 80px !important;
        object-fit: contain !important;
        -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important;
    }
    
    #invoice-watermark, #quotation-watermark, #report-watermark {
        position: fixed !important;
        top: 50% !important; left: 50% !important;
        transform: translate(-50%, -50%) !important;
        opacity: 0.05 !important; z-index: -1 !important;
        width: 300px !important;
        -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important;
    }

    .print-divider { border-top: 1px solid #000; margin: 1rem 0; }

    .print-details {
        display: flex; justify-content: space-between;
        margin-bottom: 1rem;
    }
    .print-details p { margin: 2px 0 !important; font-size: 11px !important; }

    .print-table {
        width: 100%; border-collapse: collapse; margin-bottom: 1rem;
    }
    .print-table th, .print-table td {
        border: 1px solid #000 !important;
        padding: 4px 6px !important;
        font-size: 11px !important;
        height: auto !important;
    }
    .print-table th {
        background-color: #f0f0f0 !important;
        -webkit-print-color-adjust: exact; print-color-adjust: exact;
        font-weight: bold !important;
    }

    .print-total-box {
        text-align: right;
        margin-top: 1rem;
    }
    .print-total-box p, .print-total-box h3 {
        margin: 2px 0 !important;
        font-size: 11px !important;
    }
    .print-total-box hr { border-top: 1px solid #000; margin: 4px 0 4px auto; width: 200px; }

    .qr-code-container, #quotation-print-qr-code-container, #report-dynamic-qr {
        position: absolute !important;
        top: 0 !important; right: 0 !important;
    }
    .qr-code-container canvas, .qr-code-container img, 
    #quotation-print-qr-code-container canvas, #quotation-print-qr-code-container img,
    #report-dynamic-qr canvas, #report-dynamic-qr img {
        width: 80px !important; height: 80px !important;
    }
}

/* PDF Generation Styles */
.html2pdf-active {
    display: block !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 800px !important;
    z-index: 999999 !important;
    background-color: #fff !important;
    color: #000 !important;
    padding: 20px !important;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
    box-sizing: border-box !important;
}
.html2pdf-active .invoice-header {
    text-align: center !important;
    margin-bottom: 1rem !important;
    position: relative !important;
    min-height: 100px !important;
    padding: 0 100px !important; 
}
.html2pdf-active .invoice-header h1 {
    font-size: 26px !important;
    font-weight: bold !important;
    color: #000 !important;
    border: none !important;
    margin-bottom: 2px !important;
}
.html2pdf-active .invoice-header p { margin: 2px 0 !important; font-size: 11px !important; }

.html2pdf-active #invoice-top-logo, 
.html2pdf-active #quotation-top-logo, 
.html2pdf-active #report-top-logo {
    position: absolute !important;
    top: 0 !important; left: 0 !important;
    width: 80px !important; height: 80px !important;
    object-fit: contain !important;
}

.html2pdf-active #invoice-watermark, 
.html2pdf-active #quotation-watermark, 
.html2pdf-active #report-watermark {
    position: absolute !important;
    top: 50% !important; left: 50% !important;
    transform: translate(-50%, -50%) !important;
    opacity: 0.05 !important; z-index: -1 !important;
    width: 300px !important;
}

.html2pdf-active .print-divider { border-top: 1px solid #000 !important; margin: 1rem 0 !important; }

.html2pdf-active .print-details {
    display: flex !important; justify-content: space-between !important;
    margin-bottom: 1rem !important;
}
.html2pdf-active .print-details p { margin: 2px 0 !important; font-size: 11px !important; }

.html2pdf-active .print-table {
    width: 100% !important; border-collapse: collapse !important; margin-bottom: 1rem !important;
}
.html2pdf-active .print-table th, 
.html2pdf-active .print-table td {
    border: 1px solid #000 !important;
    padding: 4px 6px !important;
    font-size: 11px !important;
    height: auto !important;
}
.html2pdf-active .print-table th {
    background-color: #f0f0f0 !important;
    font-weight: bold !important;
}

.html2pdf-active .print-total-box {
    text-align: right !important;
    margin-top: 1rem !important;
}
.html2pdf-active .print-total-box p, 
.html2pdf-active .print-total-box h3 {
    margin: 2px 0 !important;
    font-size: 11px !important;
}
.html2pdf-active .print-total-box hr { border-top: 1px solid #000 !important; margin: 4px 0 4px auto !important; width: 200px !important; }

.html2pdf-active .qr-code-container, 
.html2pdf-active #quotation-print-qr-code-container, 
.html2pdf-active #report-dynamic-qr {
    position: absolute !important;
    top: 0 !important; right: 0 !important;
}
.html2pdf-active .qr-code-container canvas, 
.html2pdf-active .qr-code-container img, 
.html2pdf-active #quotation-print-qr-code-container canvas, 
.html2pdf-active #quotation-print-qr-code-container img,
.html2pdf-active #report-dynamic-qr canvas, 
.html2pdf-active #report-dynamic-qr img {
    width: 80px !important; height: 80px !important;
}

/* Smooth Top Progress Bar */
#top-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--danger-color);
    z-index: 9999;
    transition: width 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

/* Realistic Billing Software Design overrides (transferred from JS) */
:root {
    --border-radius-sm: 2px !important;
    --border-radius-lg: 3px !important;
    --shadow: none !important;
    --primary-color: #0ea5e9;
    --primary-light: #38bdf8;
    --accent-color: #0284c7;
}

body {
    font-size: 12px !important;
    color: #333 !important;
    background-color: #eceff1 !important;
}

h1 { font-size: 18px !important; margin-bottom: 0.75rem !important; color: #263238 !important; }
h2 { font-size: 14px !important; margin-bottom: 0.5rem !important; color: #37474f !important; border-bottom: 1px solid #cfd8dc; padding-bottom: 3px; }
h3 { font-size: 13px !important; }

/* Header Title to Red dynamically */
header h2.text-6xl {
    color: #ff0000 !important;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2) !important;
}

/* Apply to all text-heavy elements */
p, span, div, label, th, td, input, select, textarea, button, .nav-link, li {
    font-size: 12px !important;
}

/* Forms Styling */
form {
    padding: 0.75rem 1rem !important;
    background: #ffffff !important;
    border: 1px solid #cfd8dc !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05) !important;
    margin-bottom: 1rem !important;
}
.form-row {
    gap: 0.75rem !important;
}
.form-group {
    margin-bottom: 0.5rem !important;
}
label {
    font-weight: 600 !important;
    margin-bottom: 0.2rem !important;
    color: #455a64 !important;
}

/* Inputs styling */
input, select, textarea {
    padding: 0.2rem 0.4rem !important;
    border: 1px solid #b0bec5 !important;
    background-color: #fff !important;
    border-radius: 2px !important;
    height: 24px !important;
}
textarea {
    height: auto !important;
    padding: 0.4rem !important;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color) !important;
    box-shadow: inset 0 0 0 1px var(--primary-color) !important;
    outline: none !important;
}

input[type="radio"] { 
    cursor: pointer; 
    margin-right: 4px !important; 
}

/* Buttons styling */
button {
    padding: 0.25rem 0.75rem !important;
    border-radius: 2px !important;
    font-weight: 600 !important;
    text-transform: capitalize !important;
    letter-spacing: normal !important;
    height: 26px !important;
    line-height: 1 !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent !important;
}
button.btn-primary { border-color: #0288d1 !important; background-color: #039be5 !important; }
button.btn-success { border-color: #2e7d32 !important; background-color: #43a047 !important; }
button.btn-danger { border-color: #c62828 !important; background-color: #e53935 !important; }
.action-buttons button { margin-right: 2px; }

/* Tables styling */
table {
    border-spacing: 0 !important;
    border-collapse: collapse !important;
    border: 1px solid #cfd8dc !important;
    box-shadow: none !important;
    margin-top: 0.5rem !important;
}
th, td {
    padding: 0.25rem 0.5rem !important;
    border: 1px solid #cfd8dc !important;
    height: 24px !important;
}
th {
    background-color: #e0e0e0 !important;
    color: #212121 !important;
    font-weight: bold !important;
    text-transform: none !important;
    letter-spacing: normal !important;
}
tr:hover { background-color: #f5f5f5 !important; box-shadow: none !important; transform: none !important; }

/* Layout specific adjustments */
.main-content {
    padding: 1rem !important;
}
.dashboard-grid { gap: 1rem !important; }
.dashboard-card {
    padding: 1rem !important;
    border: 1px solid #cfd8dc !important;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05) !important;
    border-radius: 3px !important;
}
.card-value {
    font-size: 18px !important;
}
.card-icon {
    font-size: 16px !important;
    margin-bottom: 0.25rem !important;
}
.header-row {
    margin-bottom: 0.75rem !important;
}
.status-filters {
    padding: 0.4rem 0.75rem !important;
    margin-bottom: 0.75rem !important;
    border: 1px solid #cfd8dc !important;
    border-radius: 3px !important;
    box-shadow: none !important;
    background: #fff !important;
}
.modal-content {
    padding: 1rem !important;
}

/* Table Internal Edit Inputs */
.edit-qty-input, .edit-price-input {
    padding: 0.1rem 0.25rem !important;
    height: 20px !important;
    margin: 0 !important;
    width: 100% !important;
    min-width: 40px !important;
}

/* Nav specific overrides */
header { padding: 1.25rem 1.5rem !important; }

/* Fix button alignment in tables */
.action-buttons {
    display: flex;
    gap: 4px; 
    flex-wrap: nowrap; 
    align-items: center;
}
.action-buttons button {
    height: 24px; 
    padding: 0 0.4rem; 
    font-size: 11px;
    white-space: nowrap; 
}

/* Screen preview specific overrides to prevent overlap inside modals */
#invoice-details-container {
    overflow-x: hidden !important;
}
#invoice-details-container .invoice-header {
    padding: 0 85px !important;
    min-height: 85px !important;
    text-align: center !important;
}
#invoice-details-container h1 {
    font-size: 20px !important;
    margin-bottom: 4px !important;
    line-height: 1.2 !important;
}
#invoice-details-container p {
    font-size: 12px !important;
}
#invoice-details-container #invoice-top-logo,
#invoice-details-container #quotation-top-logo {
    width: 75px !important;
    height: 75px !important;
    left: 0 !important;
    top: 0 !important;
}
#invoice-details-container .qr-code-container {
    right: 0 !important;
    top: 0 !important;
}
#invoice-details-container .qr-code-container canvas,
#invoice-details-container .qr-code-container img,
#invoice-details-container #quotation-dynamic-qr-code canvas,
#invoice-details-container #quotation-dynamic-qr-code img,
#invoice-details-container #dynamic-qr-code canvas,
#invoice-details-container #dynamic-qr-code img {
    width: 75px !important;
    height: 75px !important;
}
#invoice-details-container .print-details {
    display: flex !important;
    justify-content: space-between !important;
    flex-wrap: wrap !important;
    gap: 10px !important;
}
#invoice-details-container .print-table th, 
#invoice-details-container .print-table td {
    font-size: 11px !important;
    padding: 4px !important;
}

.flex {
    display: flex !important;
}
.flex-col {
    flex-direction: column !important;
}
.items-center {
    align-items: center !important;
}
.justify-center {
    justify-content: center !important;
}
.text-center {
    text-align: center !important;
}
.py-6 {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
}

.hide-banner {
    display: none !important;
}

#network-status-pill.online {
    background: rgba(198, 40, 40, 0.15) !important;
    color: #c62828 !important;
    border: 1px solid rgba(198, 40, 40, 0.4) !important;
}

#network-status-pill.offline {
    background: rgba(16, 185, 129, 0.15) !important;
    color: #34d399 !important;
    border: 1px solid rgba(16, 185, 129, 0.3) !important;
}

/* PWA Install Popup Styling */
.pwa-install-popup-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999999;
    width: 360px;
    max-width: calc(100vw - 48px);
    font-family: 'Poppins', 'Segoe UI', sans-serif;
    animation: pwaSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes pwaSlideIn {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.pwa-install-popup-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-radius: 16px;
    padding: 1.5rem;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pwa-install-popup-close-btn {
    position: absolute;
    top: 4px;
    right: 16px;
    font-size: 38px;
    font-weight: 500;
    color: #90a4ae;
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
    line-height: 1;
}

.pwa-install-popup-close-btn:hover {
    color: var(--text-color-dark);
    transform: scale(1.1);
}

.pwa-install-popup-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pwa-install-popup-logo {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.pwa-install-popup-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pwa-install-popup-title {
    font-size: 1.05rem !important;
    font-weight: 700 !important;
    color: var(--text-color-dark) !important;
    margin: 0;
    line-height: 1.2;
    border-bottom: none !important;
    padding-bottom: 0 !important;
}

.pwa-install-popup-subtitle {
    font-size: 0.8rem !important;
    color: #78909c !important;
    margin: 0;
}

.pwa-install-popup-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 2px;
}

.star-rating {
    color: #ffb300;
    font-size: 12px;
    letter-spacing: 1px;
}

.rating-badge {
    font-size: 9px !important;
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
}

.pwa-install-popup-body {
    font-size: 0.85rem !important;
    color: #455a64 !important;
    line-height: 1.5;
}

.pwa-install-popup-actions {
    display: flex;
    gap: 0.5rem;
}

.pwa-btn-primary {
    flex: 1;
    background: var(--primary-color);
    color: white !important;
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem !important;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 6px -1px rgba(14, 165, 233, 0.2);
}

.pwa-btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 6px 12px -2px rgba(14, 165, 233, 0.3);
}

.pwa-btn-secondary {
    background: #f1f5f9;
    color: #475569 !important;
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem !important;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.pwa-btn-secondary:hover {
    background: #e2e8f0;
}

.pwa-install-popup-actions-ios {
    border-top: 1px dashed rgba(0, 0, 0, 0.08);
    padding-top: 0.75rem;
}

.ios-instruction {
    font-size: 0.8rem !important;
    color: #475569 !important;
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    line-height: 1.5;
}

.ios-share-icon {
    color: var(--primary-color);
    display: inline-block;
    vertical-align: middle;
}

/* Responsive adjustment for Mobile screens */
@media (max-width: 480px) {
    .pwa-install-popup-container {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-width: 100%;
        animation: pwaSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    }
    
    @keyframes pwaSlideUp {
        from {
            opacity: 0;
            transform: translateY(100%);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .pwa-install-popup-card {
        border-radius: 20px 20px 0 0;
        border-bottom: none;
        padding: 1.25rem 1.25rem 2rem 1.25rem;
        box-shadow: 0 -10px 25px -5px rgba(0, 0, 0, 0.1);
    }
}

/* Segmented pill selectors for premium UI filter controls */
.status-filters {
    display: inline-flex !important;
    background: #eceff1 !important;
    padding: 3px !important;
    border-radius: 20px !important;
    align-items: center !important;
    gap: 4px !important;
    border: 1px solid var(--border-color) !important;
    margin-bottom: 0.75rem !important;
}
.status-filters label {
    position: relative !important; /* Set relative to contain absolute input */
    font-size: 11px !important;
    font-weight: 600 !important;
    padding: 4px 10px !important;
    border-radius: 15px !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    gap: 4px !important;
    transition: background 0.2s, color 0.2s !important;
    margin: 0 !important;
    color: #546e7a !important;
    overflow: hidden !important;
}
.status-filters label:has(input[type="radio"]) {
    background: transparent;
}
.status-filters label:not(:has(input[type="radio"])) {
    font-weight: 700 !important;
    color: var(--primary-color) !important;
    padding: 4px 6px 4px 10px !important;
    cursor: default !important;
}
.status-filters label:has(input:checked) {
    background-color: var(--primary-color) !important;
    color: white !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15) !important;
}
.status-filters input[type="radio"] {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    opacity: 0 !important; /* Completely transparent */
    cursor: pointer !important;
    margin: 0 !important;
    z-index: 2 !important; /* Ensure tap goes directly to input */
}

/* Desktop & Laptop Action Buttons Styling (Text Names Only) */
#sales-table td.action-buttons {
    display: flex !important;
    gap: 6px !important;
    flex-wrap: wrap !important;
    justify-content: flex-start !important;
    align-items: center !important;
    padding: 8px 10px !important;
    height: auto !important;
    min-height: 40px !important;
    border: none !important;
    box-sizing: border-box !important;
}
#sales-table td.action-buttons button {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 26px !important;
    width: auto !important; /* Automatic sizing based on text length */
    padding: 0 10px !important;
    border-radius: 4px !important; /* Elegant rectangular buttons on desktop */
    font-size: 11px !important;
    font-weight: 600 !important;
    border: none !important;
    color: #ffffff !important;
    cursor: pointer !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15) !important;
    transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease !important;
    box-sizing: border-box !important;
    margin: 2px 0 !important;
}
#sales-table td.action-buttons button:hover {
    transform: translateY(-1px) !important;
    filter: brightness(1.08) !important;
    box-shadow: 0 3px 6px rgba(0,0,0,0.2) !important;
}
#sales-table td.action-buttons .action-icon {
    display: none !important; /* Hide realistic icons on desktop */
}
#sales-table td.action-buttons .action-text {
    display: inline-block !important; /* Show text labels on desktop */
}

/* Specific background themes for action buttons */
#sales-table td.action-buttons button[onclick*="viewInvoice"] { background-color: #059669 !important; } /* Emerald */
#sales-table td.action-buttons button[onclick*="showReturnModal"] { background-color: #d97706 !important; } /* Amber */
#sales-table td.action-buttons button[onclick*="convertQuotationToInvoice"] { background-color: #4f46e5 !important; } /* Indigo */
#sales-table td.action-buttons button[onclick*="printInvoiceBill"] { background-color: #374151 !important; } /* Charcoal */
#sales-table td.action-buttons button[onclick*="downloadPDF"] { background-color: #0284c7 !important; } /* Sky Blue */
#sales-table td.action-buttons button[onclick*="sharePDF"] { background-color: #7c3aed !important; } /* Purple */
#sales-table td.action-buttons button[onclick*="sendInvoiceWhatsApp"] { background-color: #25d366 !important; } /* WhatsApp Green */
#sales-table td.action-buttons button[onclick*="updatePayment"] { background-color: #0ea5e9 !important; } /* Cyan */
#sales-table td.action-buttons button[onclick*="deleteSalesRecord"] { background-color: #dc2626 !important; } /* Crimson Red */

/* Responsive Mobile UI for All Tables (No scroll, card layout) */
@media (max-width: 768px) {
    /* Hide main table headers on mobile */
    table:not(.print-view table) thead {
        display: none !important;
    }
    
    /* Convert table body & rows to block list card layout */
    table:not(.print-view table), 
    table:not(.print-view table) tbody {
        display: block !important;
        width: 100% !important;
    }
    
    table:not(.print-view table) tr {
        display: block; /* Removed !important to allow JS style.display='none' overrides */
        width: 100% !important;
        background-color: var(--card-bg) !important;
        border: 1px solid var(--border-color) !important;
        border-radius: 8px !important;
        padding: 12px 16px !important;
        margin-bottom: 14px !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.06) !important;
        box-sizing: border-box !important;
    }
    
    /* Style cells as stacked block items with metadata labels */
    table:not(.print-view table) td {
        display: block !important;
        text-align: right !important;
        padding: 6px 0 !important;
        border: none !important;
        font-size: 13px !important;
        color: var(--text-color) !important;
        min-height: 24px !important;
        box-sizing: border-box !important;
    }
    
    /* Left-aligned data label content extraction */
    table:not(.print-view table) td::before {
        content: attr(data-label) !important;
        float: left !important;
        font-weight: 600 !important;
        color: #78909c !important; /* Soft grey/blue label color */
    }
    
    /* Action buttons formatting on mobile (horizontal centered row inside card) */
    table:not(.print-view table) td.action-buttons,
    table:not(.print-view table) td:last-child {
        display: flex !important;
        justify-content: center !important; /* Centered icons on mobile cards */
        gap: 12px !important; /* Proper tap gaps */
        margin: 10px 0 0 0 !important;
        padding: 10px 0 0 0 !important;
        border-top: 1px dashed var(--border-color) !important;
        width: 100% !important;
        min-height: auto !important;
    }
    
    table:not(.print-view table) td.action-buttons::before,
    table:not(.print-view table) td:last-child::before {
        display: none !important; /* Hide data label for actions cell */
    }

    /* Mobile circular action button style overrides (ID selectors added to defeat desktop specificity) */
    #sales-table td.action-buttons button,
    #purchase-table td.action-buttons button,
    #stock-table td.action-buttons button,
    #recycle-table td.action-buttons button,
    table:not(.print-view table) td.action-buttons button,
    table:not(.print-view table) td:last-child button {
        width: 32px !important;
        height: 32px !important;
        border-radius: 50% !important; /* Dynamic circular icons on mobile */
        padding: 0 !important;
        margin: 0 !important;
        justify-content: center !important;
        align-items: center !important;
        box-shadow: 0 2px 4px rgba(0,0,0,0.15) !important;
    }
    #sales-table td.action-buttons button:hover,
    #purchase-table td.action-buttons button:hover,
    table:not(.print-view table) td.action-buttons button:hover,
    table:not(.print-view table) td:last-child button:hover {
        transform: scale(1.15) !important;
    }
    #sales-table td.action-buttons button .action-icon,
    table:not(.print-view table) td.action-buttons button .action-icon,
    table:not(.print-view table) td:last-child button .action-icon {
        display: inline-block !important; /* Show SVGs on mobile */
        width: 15px !important;
        height: 15px !important;
        color: #ffffff !important;
        fill: #ffffff !important;
    }
    #sales-table td.action-buttons button .action-icon path,
    table:not(.print-view table) td.action-buttons button .action-icon path,
    table:not(.print-view table) td:last-child button .action-icon path {
        fill: #ffffff !important; /* Force vector path to render white on background circles */
    }
    #sales-table td.action-buttons button .action-text,
    table:not(.print-view table) td.action-buttons button .action-text,
    table:not(.print-view table) td:last-child button .action-text {
        display: none !important; /* Hide text on mobile */
    }

    /* Expand search bar and filters full width on mobile */
    .form-group[style*="width: 300px"] {
        width: 100% !important;
        max-width: 100% !important;
    }
    #sales-search {
        width: 100% !important;
    }

    /* Horizontal scrolling navbar list for modern mobile tabs */
    .modern-navbar {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        justify-content: flex-start !important;
        padding: 0.4rem !important;
        gap: 6px !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important; /* Hide scrollbar Firefox */
        margin-top: 0.75rem !important;
    }
    .modern-navbar::-webkit-scrollbar {
        display: none !important; /* Hide scrollbar Chrome/Safari */
    }
    .nav-link {
        padding: 0.45rem 0.75rem !important;
        font-size: 11px !important;
        flex-shrink: 0 !important; /* Prevent tabs from shrinking */
    }
    header {
        padding: 0.5rem 0.75rem !important;
    }
    header h1 {
        font-size: 15px !important;
        margin-bottom: 0 !important;
    }

    /* 3-Column Banner Dashboard Row on Mobile */
    .dashboard-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 8px !important;
        margin-bottom: 8px !important;
    }
    .dashboard-card {
        flex-direction: column !important;
        align-items: center !important;
        text-align: center !important;
        padding: 6px 4px !important;
        border-top-width: 2px !important;
    }
    .dashboard-card .card-icon {
        font-size: 14px !important;
        margin-bottom: 2px !important;
    }
    .dashboard-card .card-title {
        font-size: 8px !important;
        margin-bottom: 2px !important;
    }
    .dashboard-card .card-value {
        font-size: 11px !important;
        font-weight: 700 !important;
    }

    /* Force viewport lock on mobile containers to guarantee no right/left scroll */
    html, body, .container, .main-content, .view {
        max-width: 100vw !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
    }

    /* Narrow viewport specific auto-scaling */
    @media (max-width: 480px) {
        .status-filters {
            display: flex !important;
            width: 100% !important;
            justify-content: space-between !important;
            border-radius: 12px !important;
            box-sizing: border-box !important;
        }
        .status-filters label:has(input[type="radio"]) {
            font-size: 9.5px !important;
            padding: 4px 6px !important;
            border-radius: 8px !important;
            text-align: center !important;
            justify-content: center !important;
            flex: 1 !important;
        }
        .status-filters label:not(:has(input[type="radio"])) {
            font-size: 10px !important;
            padding: 4px 4px 4px 6px !important;
        }

        #sales-table td.action-buttons {
            gap: 6px !important; /* Tighten action gaps on narrow mobile screens */
        }
        #sales-table td.action-buttons button {
            width: 28px !important; /* Slightly scale down circular buttons to fit SE screens */
            height: 28px !important;
        }
        #sales-table td.action-buttons button .action-icon {
            width: 13px !important;
            height: 13px !important;
        }
    }

    /* Toast Notification Bottom-Center Layout on Mobile only */
    .alert-box {
        top: auto !important;
        bottom: 30px !important;
        left: 50% !important;
        right: auto !important;
        transform: translate(-50%, 20px) !important;
        width: 90% !important;
        max-width: 400px !important;
        box-sizing: border-box !important;
        height: auto !important;
        min-height: auto !important;
        display: block !important;
        padding: 0.75rem 1.5rem !important;
        line-height: 1.4 !important;
    }
    .alert-box.show {
        opacity: 1 !important;
        transform: translate(-50%, 0) !important;
    }
}