/**
 * Dar e Sahulat - Free Online Invoice Generator Stylesheet
 * Brand Colors: Primary Green (#10B981), Dark Green (#0B6B3A), White, Dark Text (#1F2937)
 */

:root {
    --invoice-primary: #10B981;
    --invoice-primary-hover: #059669;
    --invoice-dark-green: #0B6B3A;
    --invoice-dark-green-hover: #095930;
    --invoice-bg-light: #F9FAFB;
    --invoice-border-light: #E5E7EB;
    --invoice-text-dark: #1F2937;
    --invoice-text-muted: #4B5563;
    --invoice-text-light: #9CA3AF;
    
    --invoice-width: 800px;
    --invoice-min-height: 1050px;
    --radius-premium: 12px;
    --shadow-premium: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
}

/* Base Page Wrapper */
.invoice-page-wrapper {
    background-color: var(--invoice-bg-light);
    color: var(--invoice-text-dark);
    font-family: 'Inter', sans-serif;
    padding-bottom: 4rem;
}

/* Two Column Layout Grid */
.invoice-builder-layout {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 30px;
    align-items: start;
    margin-top: 1.5rem;
}

@media (max-width: 1024px) {
    .invoice-builder-layout {
        grid-template-columns: 1fr;
    }
}

/* Sidebar Controls */
.builder-sidebar {
    background: #FFFFFF;
    border: 1px solid var(--invoice-border-light);
    border-radius: var(--radius-premium);
    padding: 24px;
    box-shadow: var(--shadow-premium);
    max-height: 90vh;
    overflow-y: auto;
    position: sticky;
    top: 100px;
}

@media (max-width: 1024px) {
    .builder-sidebar {
        max-height: none;
        position: static;
    }
}

/* Collapsible Form Sections */
.form-section-card {
    border: 1px solid var(--invoice-border-light);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
    background: #FFFFFF;
    transition: border-color 0.2s ease;
}
.form-section-card:hover {
    border-color: #D1D5DB;
}
.form-section-header {
    background: #F9FAFB;
    padding: 14px 18px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--invoice-dark-green);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--invoice-border-light);
    user-select: none;
}
.form-section-header svg {
    transition: transform 0.2s ease;
    stroke: var(--invoice-dark-green);
}
.form-section-header.active svg {
    transform: rotate(180deg);
}
.form-section-content {
    padding: 20px;
    display: none;
}
.form-section-content.active {
    display: block;
}

/* Form Controls & Inputs styling */
.form-group-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}
.form-group-single {
    margin-bottom: 12px;
}
.form-label-premium {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--invoice-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: block;
    margin-bottom: 6px;
}
.input-premium {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid #D1D5DB;
    border-radius: 6px;
    font-size: 0.88rem;
    color: var(--invoice-text-dark);
    background-color: #FFFFFF;
    transition: all 0.15s ease;
    box-sizing: border-box;
}
.input-premium:focus {
    outline: none;
    border-color: var(--invoice-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
.input-premium::placeholder {
    color: #9CA3AF;
}

/* Logo Upload Container */
.logo-upload-container {
    border: 2px dashed #D1D5DB;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    background: #F9FAFB;
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
}
.logo-upload-container:hover {
    border-color: var(--invoice-primary);
    background: rgba(16, 185, 129, 0.02);
}
.logo-upload-container.dragover {
    border-color: var(--invoice-primary);
    background: rgba(16, 185, 129, 0.1);
}
.logo-preview-thumbnail {
    max-height: 60px;
    max-width: 120px;
    margin: 0 auto 8px auto;
    display: block;
    object-fit: contain;
}

/* Itemized line rows list */
.item-row-card {
    background: #F9FAFB;
    border: 1px solid var(--invoice-border-light);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 12px;
    position: relative;
}
.item-row-card .row-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 10px;
    border-top: 1px solid var(--invoice-border-light);
    padding-top: 8px;
}

/* Builder Canvas (Right Column) */
.builder-canvas {
    background: #E5E7EB;
    border-radius: var(--radius-premium);
    padding: 30px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.04);
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Template Select Switcher Pills */
.template-switcher-pills {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    width: 100%;
}
.template-pill {
    padding: 8px 16px;
    border-radius: 30px;
    background: #FFFFFF;
    color: var(--invoice-text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--invoice-border-light);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}
.template-pill:hover {
    border-color: var(--invoice-primary);
    color: var(--invoice-primary);
}
.template-pill.active {
    background: var(--invoice-dark-green);
    color: #FFFFFF;
    border-color: var(--invoice-dark-green);
    box-shadow: 0 4px 6px -1px rgba(11, 107, 58, 0.2);
}

/* Viewport Controls */
.preview-control-toolbar {
    width: 100%;
    max-width: var(--invoice-width);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    background: #FFFFFF;
    padding: 12px 20px;
    border-radius: 8px;
    border: 1px solid var(--invoice-border-light);
    box-sizing: border-box;
}
.viewport-toggle-buttons {
    display: flex;
    gap: 8px;
}
.btn-viewport-toggle {
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--invoice-border-light);
    background: #FFFFFF;
    color: var(--invoice-text-muted);
    cursor: pointer;
}
.btn-viewport-toggle.active {
    background: rgba(16, 185, 129, 0.08);
    color: var(--invoice-primary);
    border-color: var(--invoice-primary);
}

/* Main A4 Document Sheet */
.invoice-preview-container {
    background: #FFFFFF;
    width: 100%;
    max-width: var(--invoice-width);
    min-height: var(--invoice-min-height);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-radius: 4px;
    padding: 50px;
    box-sizing: border-box;
    position: relative;
    transition: width 0.3s ease;
    border: 1px solid #D1D5DB;
}

/* Invoice Header Elements */
.invoice-sheet-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 35px;
}
.invoice-logo-frame {
    max-height: 80px;
    max-width: 180px;
    object-fit: contain;
    margin-bottom: 10px;
}
.invoice-sheet-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.1;
    margin: 0 0 5px 0;
}

/* Customer & Billing Grids */
.invoice-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    border-bottom: 1px solid var(--invoice-border-light);
    padding-bottom: 25px;
    margin-bottom: 25px;
}
.meta-info-block {
    text-align: right;
    line-height: 1.6;
    font-size: 0.9rem;
}
.meta-info-block p {
    margin: 3px 0;
}
.client-info-block {
    line-height: 1.5;
    font-size: 0.9rem;
}
.client-info-block p {
    margin: 3px 0;
}

/* Invoice Items Table */
.invoice-sheet-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}
.invoice-sheet-table th {
    padding: 10px 12px;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 2px solid var(--invoice-text-dark);
    color: var(--invoice-text-dark);
}
.invoice-sheet-table td {
    padding: 12px;
    border-bottom: 1px solid var(--invoice-border-light);
    font-size: 0.88rem;
    vertical-align: top;
}
.invoice-sheet-table td.desc-col {
    max-width: 250px;
}

/* Summary Calculations Section */
.invoice-sheet-summary {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 40px;
    margin-top: 20px;
}
.remittance-instructions-box {
    background: #F9FAFB;
    border: 1px solid var(--invoice-border-light);
    padding: 15px;
    border-radius: 6px;
    font-size: 0.82rem;
    line-height: 1.6;
}
.remittance-instructions-box h4 {
    margin: 0 0 8px 0;
    color: var(--invoice-dark-green);
    font-weight: 700;
    font-size: 0.88rem;
}
.remittance-instructions-box p {
    margin: 4px 0;
}
.calculation-summary-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}
.calculation-summary-table td {
    padding: 6px 0;
    color: var(--invoice-text-muted);
}
.calculation-summary-table tr.total-row td {
    border-top: 2px solid var(--invoice-text-dark);
    padding-top: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--invoice-text-dark);
}

/* Remarks and Terms Box */
.invoice-sheet-notes {
    margin-top: 30px;
    border-top: 1px solid var(--invoice-border-light);
    padding-top: 15px;
    font-size: 0.82rem;
    color: var(--invoice-text-muted);
    line-height: 1.6;
}
.invoice-sheet-notes h4 {
    margin: 0 0 5px 0;
    font-weight: 600;
    color: var(--invoice-text-dark);
}

/* ----------------------------------------------------
   TEMPLATE OVERRIDES
   ---------------------------------------------------- */

/* 1. Modern Green Template */
.template-theme-modern {
    border-top: 8px solid var(--invoice-primary);
}
.template-theme-modern .invoice-sheet-title {
    color: var(--invoice-primary);
}
.template-theme-modern th {
    background: rgba(16, 185, 129, 0.05);
    border-bottom: 2px solid var(--invoice-primary);
    color: var(--invoice-dark-green);
}

/* 2. Corporate Dark Template */
.template-theme-corporate {
    border-top: 10px solid var(--invoice-dark-green);
}
.template-theme-corporate .invoice-sheet-header {
    background: var(--invoice-dark-green);
    color: #FFFFFF;
    margin: -50px -50px 35px -50px;
    padding: 40px 50px;
}
.template-theme-corporate .invoice-sheet-header .invoice-sheet-title {
    color: #FFFFFF;
}
.template-theme-corporate th {
    background: #F3F4F6;
    border-bottom: 2px solid var(--invoice-dark-green);
}

/* 3. Classic Minimal Template */
.template-theme-minimal {
    border: none;
    box-shadow: none;
    padding: 30px 10px;
}
.template-theme-minimal th {
    border-bottom: 1px solid #9CA3AF;
}
.template-theme-minimal td {
    border-bottom: 1px solid #F3F4F6;
}

/* 4. Retail POS Template (58mm cash memo slip) */
.template-theme-pos {
    max-width: 320px;
    min-height: auto;
    padding: 15px;
    font-family: monospace;
    font-size: 0.78rem;
    box-shadow: none;
    border: 1px dashed #9CA3AF;
    border-radius: 0;
}
.template-theme-pos .invoice-sheet-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 15px;
}
.template-theme-pos .invoice-sheet-title {
    font-size: 1.25rem;
    font-weight: 700;
}
.template-theme-pos .invoice-details-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    border-bottom: 1px dashed #000;
    padding-bottom: 10px;
    margin-bottom: 10px;
}
.template-theme-pos .meta-info-block {
    text-align: left;
}
.template-theme-pos .invoice-sheet-table th {
    padding: 4px;
    border-bottom: 1px dashed #000;
}
.template-theme-pos .invoice-sheet-table td {
    padding: 6px 4px;
    border-bottom: 1px dashed #E5E7EB;
    font-size: 0.72rem;
}
.template-theme-pos .invoice-sheet-summary {
    grid-template-columns: 1fr;
    gap: 15px;
}
.template-theme-pos .calculation-summary-table tr.total-row td {
    border-top: 1px dashed #000;
}

/* 5. Academic Fee Challan Template */
.template-theme-challan {
    border: 2px dashed var(--invoice-dark-green);
    background: #FCFDFE;
}
.template-theme-challan::before {
    content: "Student Fee Challan - Customer Copy";
    position: absolute;
    top: 5px;
    right: 15px;
    font-size: 0.65rem;
    color: var(--invoice-text-light);
    text-transform: uppercase;
    font-weight: bold;
}
.template-theme-challan th {
    background: rgba(11, 107, 58, 0.05);
    border-bottom: 2px dashed var(--invoice-dark-green);
    color: var(--invoice-dark-green);
}
.challan-student-card {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    background: #F3F4F6;
    border: 1px solid var(--invoice-border-light);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 0.85rem;
}

/* ----------------------------------------------------
   SEO CONTENT MODULE
   ---------------------------------------------------- */
.seo-content-section {
    background-color: #FFFFFF;
    border-top: 1px solid var(--invoice-border-light);
    padding: 60px 0;
}
.seo-content-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}
.seo-h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--invoice-dark-green);
    margin: 40px 0 20px 0;
    border-bottom: 2px solid rgba(16, 185, 129, 0.1);
    padding-bottom: 8px;
}
.seo-h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--invoice-text-dark);
    margin: 25px 0 12px 0;
}
.seo-p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--invoice-text-muted);
    margin-bottom: 1.25rem;
}
.seo-list {
    margin-bottom: 1.5rem;
    padding-left: 20px;
}
.seo-list li {
    font-size: 0.95rem;
    color: var(--invoice-text-muted);
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Feature Cards Grid */
.feature-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin: 30px 0;
}
.feature-seo-card {
    background: #F9FAFB;
    border: 1px solid var(--invoice-border-light);
    border-radius: 8px;
    padding: 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-seo-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border-color: var(--invoice-primary);
}
.feature-seo-card h3 {
    color: var(--invoice-dark-green);
    margin: 0 0 10px 0;
    font-size: 1.15rem;
    font-weight: 600;
}

/* Step Process Guide */
.step-process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin: 30px 0;
}
.step-process-card {
    background: #FFFFFF;
    border: 1px solid var(--invoice-border-light);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow-premium);
}
.step-num-bubble {
    width: 36px;
    height: 36px;
    background: var(--invoice-primary);
    color: #FFFFFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 12px auto;
}

/* FAQ Accordion Grid */
.faq-accordion-container {
    margin-top: 30px;
}
.faq-accordion-item {
    border: 1px solid var(--invoice-border-light);
    border-radius: 6px;
    margin-bottom: 12px;
    background: #FFFFFF;
}
.faq-question-btn {
    width: 100%;
    padding: 16px 20px;
    text-align: left;
    background: none;
    border: none;
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--invoice-text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-answer-panel {
    padding: 0 20px 16px 20px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--invoice-text-muted);
    display: none;
}
.faq-answer-panel.show {
    display: block;
}

/* CTA Footer Block */
.cta-banner-card {
    background: linear-gradient(135deg, var(--invoice-dark-green) 0%, var(--invoice-primary) 100%);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    color: #FFFFFF;
    margin-top: 40px;
}
.cta-banner-card h2 {
    font-family: 'Outfit', sans-serif;
    color: #FFFFFF;
    font-size: 1.8rem;
    margin: 0 0 10px 0;
}
.cta-banner-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin-bottom: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ----------------------------------------------------
   PRINT STYLES AND LAYOUT OVERRIDES
   ---------------------------------------------------- */
@media print {
    body, html {
        background: #FFFFFF !important;
        color: #000000 !important;
    }
    header, footer, .no-print, .builder-sidebar, .preview-control-toolbar, .seo-content-section, .breadcrumbs {
        display: none !important;
    }
    .invoice-builder-layout {
        display: block !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    .builder-canvas {
        background: none !important;
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
    }
    .invoice-preview-container {
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        min-height: auto !important;
    }
    .template-theme-pos {
        border: 1px dashed #000 !important;
    }
}