/* ============================================
   PRODUCTION-GRADE INVOICE GENERATOR STYLES
   ============================================ */

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

:root {
    /* Mc'Harv Techlabs Brand Colors */
    --navy: #060D1A;
    --navy2: #0C1E35;
    --navy3: #142848;
    --navy4: #1A3258;
    --gold: #D4A032;
    --gold2: #F0BE56;
    --gold3: #FFF0CC;
    --white: #F4F1EA;
    --text: #B8C5D6;
    --muted: #8A99B0;
    --border: #203554;
    --border2: #2A4470;
    
    /* Legacy aliases for compatibility */
    --primary-color: #D4A032;
    --primary-dark: #1A3258;
    --primary-light: #F0BE56;
    --accent-color: #F0BE56;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --gray-50: #142848;
    --gray-100: #0C1E35;
    --gray-200: #203554;
    --gray-300: #2A4470;
    --gray-500: #8A99B0;
    --gray-600: #7A8BA0;
    --gray-700: #B8C5D6;
    --gray-900: #F4F1EA;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --radius-lg: 0.75rem;
}

html {
    scroll-behavior: smooth;
}

/* Grid background pattern to match Website2 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(212, 160, 50, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 160, 50, 0.04) 1px, transparent 1px);
    background-size: 72px 72px;
    pointer-events: none;
    z-index: 0;
}

body {
    font-family: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--navy);
    color: var(--text);
    line-height: 1.6;
    position: relative;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--navy);
    position: relative;
    z-index: 1;
}

.app-header {
    background: linear-gradient(135deg, var(--navy3) 0%, var(--navy4) 100%);
    color: var(--white);
    padding: 1rem 2rem;
    border-bottom: 2px solid var(--gold);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-brand i {
    font-size: 1.75rem;
}

.header-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateX(-2px);
}

.app-body {
    display: flex;
    flex: 1;
    gap: 0;
    overflow: hidden;
}

.sidebar {
    width: 250px;
    background: var(--navy2);
    border-right: 2px solid var(--border);
    overflow-y: auto;
    box-shadow: var(--shadow-md);
}

.nav-tabs {
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-left: 3px solid transparent;
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-tab:hover {
    background-color: var(--navy3);
    color: var(--gold);
}

.nav-tab.active {
    background-color: rgba(212, 160, 50, 0.1);
    border-left-color: var(--gold);
    color: var(--gold);
    font-weight: 600;
}

.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.content-tab {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: none;
    animation: fadeIn 0.3s ease;
}

.content-tab.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-header {
    margin-bottom: 2rem;
}

.tab-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.tab-header h2 i {
    color: var(--gold);
}

.tab-header p {
    color: var(--text);
    font-size: 0.95rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    background: var(--navy3);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background: var(--navy2);
    color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212, 160, 50, 0.15);
    background: var(--navy3);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.items-container {
    background: var(--navy3);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.table-responsive {
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

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

.items-table thead {
    background: var(--navy2);
    border-bottom: 2px solid var(--border);
}

.items-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--gold);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.items-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.items-table tbody tr:hover {
    background: rgba(212, 160, 50, 0.05);
}

.items-table input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    background: var(--navy2);
    color: var(--text);
}

.btn-add-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gold);
    color: var(--navy);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-add-item:hover {
    background: var(--gold2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.preview-container {
    display: none;
    background: var(--navy3);
    padding: 2rem;
    margin-top: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.preview-container.show {
    display: block;
}

.invoice-preview {
    background: var(--navy2);
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    min-height: 800px;
}

.action-bar {
    background: var(--navy2);
    border-top: 2px solid var(--gold);
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.3);
    padding: 1rem 2rem;
    position: sticky;
    bottom: 0;
    z-index: 50;
}

.action-bar-content {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 100%;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border: 1px solid var(--border);
    background: var(--navy3);
    color: var(--text);
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.action-btn:hover {
    border-color: var(--gold);
    background: rgba(212, 160, 50, 0.1);
    color: var(--gold);
    transform: translateY(-1px);
}

.action-btn.primary {
    background: var(--gold);
    color: var(--navy);
    border-color: var(--gold);
}

.action-btn.primary:hover {
    background: var(--gold2);
    border-color: var(--gold2);
    box-shadow: var(--shadow-md);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.hidden {
    display: none !important;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 13, 26, 0.8);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--navy3);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 10;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translate(-50%, -40%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, -50%);
        opacity: 1;
    }
}

.modal:not(.hidden) {
    display: block;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gold);
    cursor: pointer;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--gold2);
}

.modal-body {
    padding: 1.5rem;
}

.modal-body .form-group {
    margin-bottom: 1rem;
}

.modal-footer {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    justify-content: flex-end;
}

.act-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.act-btn.primary {
    background: var(--gold);
    color: var(--navy);
}

.act-btn.primary:hover {
    background: var(--gold2);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.act-btn.secondary {
    background: var(--navy4);
    color: var(--text);
    border: 1px solid var(--border);
}

.act-btn.secondary:hover {
    background: rgba(212, 160, 50, 0.1);
    color: var(--gold);
}

.hidden {
    display: none !important;
}

@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .action-bar-content {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .app-body {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        max-height: 60px;
        overflow-x: auto;
    }

    .nav-tabs {
        flex-direction: row;
        padding: 0;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .nav-tab {
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 1rem 1rem;
        white-space: nowrap;
    }

    .nav-tab.active {
        border-left: none;
        border-bottom-color: var(--primary-color);
    }

    .content-tab {
        padding: 1.5rem;
    }

    .action-bar {
        padding: 1rem;
    }

    .action-bar-content {
        gap: 0.5rem;
    }

    .action-btn {
        flex: 1;
        min-width: 100px;
        padding: 0.6rem 0.8rem;
        font-size: 0.85rem;
    }

    .action-btn span {
        display: none;
    }

    .modal-content {
        width: 95%;
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: 0.75rem 1rem;
    }

    .header-brand h1 {
        font-size: 1rem;
    }

    .nav-tab span {
        display: none;
    }

    .content-tab {
        padding: 1rem;
    }

    .form-grid {
        padding: 1rem;
        gap: 0.75rem;
    }

    .action-btn {
        font-size: 0.75rem;
        padding: 0.5rem 0.6rem;
    }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, #1a365d 0%, #2d5282 100%);
    color: white;
    padding: 40px;
    text-align: center;
    border-bottom: 4px solid #3b82f6;
}

.header h1 {
    font-size: 2.8em;
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Main Content */
.content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px;
}

@media (max-width: 1200px) {
    .content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* Form Section */
.form-section, .items-section {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 10px;
    padding: 30px;
    border: 2px solid #e2e8f0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: none;
}

.form-section.show, .items-section.show {
    display: block;
}

.items-section {
    grid-column: 1 / -1;
}

.toggle-btn {
    width: 100%;
    padding: 15px 20px;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.form-container {
    display: none;
    animation: slideDown 0.3s ease;
}

.form-container.show {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hidden {
    display: none !important;
}

.show {
    display: block !important;
}

fieldset {
    border: 1px solid #cbd5e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

legend {
    padding: 0 10px;
    color: #1a365d;
    font-weight: 700;
    font-size: 1.1em;
}

label {
    display: block;
    margin: 15px 0 6px 0;
    color: #2d3748;
    font-weight: 600;
    font-size: 0.95em;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="url"],
textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95em;
    transition: all 0.2s ease;
    background: white;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: #f0f9ff;
}

.form-container button {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    transition: all 0.3s ease;
}

.form-container button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
}

/* Items Table */
.items-form {
    display: none;
    animation: slideDown 0.3s ease;
}

.items-form.show {
    display: block;
}

#itemsTable {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

#itemsTable thead {
    background: linear-gradient(135deg, #1a365d 0%, #2d5282 100%);
    color: white;
}

#itemsTable th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.5px;
}

#itemsTable td {
    padding: 12px 15px;
    border-bottom: 1px solid #e2e8f0;
}

#itemsTable tbody tr:hover {
    background: #f7fafc;
}

#itemsTable input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #cbd5e0;
    border-radius: 4px;
    font-size: 0.9em;
}

.delete-btn {
    background: #ef4444;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.delete-btn:hover {
    background: #dc2626;
    transform: scale(1.05);
}

.items-form > button {
    padding: 12px 20px;
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.items-form > button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.3);
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
}

/* Preview Section */
.preview-section {
    grid-column: 1 / -1;
}

.preview-controls {
    margin-bottom: 25px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.preview-controls button {
    padding: 12px 24px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
    font-size: 0.95em;
}

.preview-controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.preview-controls button.toggle-btn {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.preview-controls button.toggle-btn:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.preview-controls button:nth-child(3) {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.preview-controls button:nth-child(3):hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.preview-controls button:nth-child(2) {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.preview-controls button:nth-child(2):hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.preview-controls button:nth-child(4) {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.preview-controls button:nth-child(4):hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.preview-controls button:nth-child(3) {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.preview-controls button:nth-child(3):hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* Invoice Preview */
#invoicePreview {
    background: white;
    padding: 32px 40px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    max-width: 900px;
    margin: 0 auto;
    font-size: 13px;
    line-height: 1.6;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    color: #1f2937;
    font-family: 'Segoe UI', 'Roboto', sans-serif;
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 3px solid #1a365d;
    gap: 20px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.company-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    background: white;
    border-radius: 6px;
}

.company-info {
    flex: 1;
}

.company-name {
    font-size: 1.3em;
    font-weight: 700;
    color: #1a365d;
    margin: 0;
    line-height: 1.2;
}

.company-tagline {
    font-size: 0.85em;
    color: #718096;
    margin: 2px 0 0 0;
}

.invoice-info {
    text-align: right;
    min-width: 140px;
}

.invoice-label {
    font-size: 1.1em;
    font-weight: 700;
    color: #1a365d;
}

.invoice-no {
    font-size: 0.9em;
    color: #2d3748;
    margin: 2px 0;
    font-weight: 700;
}

.invoice-date {
    font-size: 0.85em;
    color: #718096;
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.column {
    background: linear-gradient(135deg, #f0f9ff 0%, #f0fdf4 100%);
    padding: 10px;
    border-radius: 6px;
    border-left: 3px solid #3b82f6;
}

.section-title {
    color: #1a365d;
    font-weight: 700;
    font-size: 0.9em;
    margin: 0 0 8px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #dbeafe;
    padding-bottom: 3px;
}

.row {
    margin: 3px 0;
    display: flex;
    gap: 6px;
}

.row-label {
    font-weight: 700;
    color: #2d3748;
    min-width: 50px;
    flex-shrink: 0;
}

.row-value {
    color: #4a5568;
    flex: 1;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    background: white;
    border-radius: 6px;
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, #1a365d 0%, #2d5282 100%);
    color: white;
}

th {
    padding: 10px;
    text-align: left;
    font-weight: 700;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border: 1px solid #2d5282;
}

td {
    padding: 8px 10px;
    border: 0.5px solid #e2e8f0;
}

tbody tr:nth-child(odd) {
    background: #f8fafc;
}

tbody tr:nth-child(even) {
    background: white;
}

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

.totals-section {
    display: flex;
    justify-content: flex-end;
    margin: 12px 0;
}

.totals-box {
    width: 240px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 0.5px solid #e2e8f0;
    font-size: 0.9em;
    background: linear-gradient(90deg, #f8fafc 0%, white 100%);
}

.total-row.grand-total {
    background: linear-gradient(135deg, #1a365d 0%, #2d5282 100%);
    color: white;
    font-weight: 700;
    border: none;
    font-size: 1em;
}

.total-label {
    font-weight: 600;
}

.total-amount {
    font-weight: 700;
    text-align: right;
    width: 80px;
}

.amount-words {
    background: linear-gradient(135deg, #fef3c7 0%, #fecaca 100%);
    border-left: 3px solid #f59e0b;
    padding: 8px 10px;
    margin: 8px 0;
    border-radius: 6px;
    font-weight: 600;
    color: #92400e;
    font-size: 0.85em;
}

.bank-section {
    margin: 10px 0;
}

.bank-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.bank-column {
    background: linear-gradient(135deg, #dbeafe 0%, #dcfce7 100%);
    padding: 8px;
    border-radius: 6px;
    border-left: 2px solid #10b981;
    font-size: 0.8em;
}

.bank-label {
    font-weight: 700;
    color: #1a365d;
    margin-bottom: 2px;
}

.bank-value {
    color: #2d3748;
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

.note {
    background: linear-gradient(135deg, #fef3c7 0%, #f3e8ff 100%);
    border-left: 2px solid #8b5cf6;
    padding: 8px 10px;
    margin: 8px 0;
    border-radius: 6px;
    font-size: 0.75em;
    color: #5b21b6;
}

.note p {
    margin: 2px 0;
    line-height: 1.3;
}

.footer {
    text-align: center;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid #e2e8f0;
    color: #718096;
    font-size: 0.8em;
}

.footer p {
    margin: 2px 0;
    line-height: 1.3;
}

/* Print Styles */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .container {
        box-shadow: none;
        border-radius: 0;
    }
    
    .header {
        display: none;
    }
    
    .content {
        display: block;
        padding: 0;
    }
    
    #invoicePreview {
        max-width: 100%;
        border: none;
        box-shadow: none;
        page-break-after: avoid;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 500px;
    animation: slideUp 0.3s ease;
    position: relative;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    margin: 0 0 20px 0;
    color: #1a365d;
    font-size: 1.5em;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #cbd5e0;
    cursor: pointer;
    transition: color 0.2s;
}

.close:hover {
    color: #1a365d;
}

.modal-body {
    margin: 20px 0;
}

.modal-body label {
    display: block;
    margin: 15px 0 6px 0;
    color: #2d3748;
    font-weight: 600;
}

.modal-body input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1em;
}

.modal-body input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#emailStatus {
    padding: 12px;
    margin: 15px 0;
    border-radius: 6px;
    display: none;
    border-left: 4px solid #10b981;
}

#emailStatus.success {
    display: block;
    background: #d1fae5;
    color: #065f46;
    border-left-color: #10b981;
}

#emailStatus.error {
    display: block;
    background: #fee2e2;
    color: #7f1d1d;
    border-left-color: #ef4444;
}

#emailStatus.info {
    display: block;
    background: #dbeafe;
    color: #0c2340;
    border-left-color: #3b82f6;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.btn-primary,
.btn-secondary {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1em;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background: #e5e7eb;
    color: #1f2937;
}

.btn-secondary:hover {
    background: #d1d5db;
    transform: translateY(-2px);
}

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