/* ==========================================================================
   NeonWorks DocGen - CSS Stylesheet
   ========================================================================== */

/* Design Tokens & Core Styles */
:root {
    --bg-app: #0d0e12;
    --bg-sidebar: #13151b;
    --bg-card: rgba(22, 25, 35, 0.7);
    --bg-card-hover: rgba(28, 32, 45, 0.85);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-focus: #8b5cf6;
    
    --text-primary: #f3f4f6;
    --text-muted: #9ca3af;
    --text-input: #e5e7eb;
    
    --color-primary: #7c3aed; /* Violet */
    --color-primary-hover: #6d28d9;
    --color-secondary: #4b5563; /* Gray */
    --color-secondary-hover: #374151;
    --color-success: #10b981; /* Emerald */
    --color-success-hover: #059669;
    --color-accent: #a78bfa; /* Light Violet */
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;

    --glow-primary: 0 0 15px rgba(124, 58, 237, 0.4);
    --glow-accent: 0 0 12px rgba(167, 139, 250, 0.3);

    --font-app: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-doc: 'Sarabun', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-app);
    overflow-x: hidden;
    height: 100vh;
    display: flex;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* App Container Layout */
.app-container {
    display: flex;
    flex-direction: column;
    width: 100vw;
    height: 100vh;
}

/* Sidebar / Header */
.app-header {
    background-color: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 10;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
}

.logo-icon {
    font-size: 24px;
    background: linear-gradient(135deg, #a78bfa, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px rgba(124, 58, 237, 0.4));
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.logo-text span {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Action Buttons & Utilities */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    text-decoration: none;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 6px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--glow-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: #ffffff;
}
.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--color-success);
    color: #ffffff;
}
.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-hover);
    transform: translateY(-1px);
}
.btn-success:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-accent {
    background-color: var(--color-accent);
    color: #0d0e12;
    box-shadow: var(--glow-accent);
}
.btn-accent:hover {
    background-color: #c084fc;
    transform: translateY(-1px);
}

.btn-outline-accent {
    background-color: transparent;
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
}
.btn-outline-accent:hover {
    background-color: rgba(167, 139, 250, 0.1);
}

.btn-outline-danger {
    background-color: transparent;
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}
.btn-outline-danger:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

.actions-group {
    display: flex;
    flex-direction: row;
    gap: 12px;
    margin-top: 0;
}

/* Workspace Panels */
.app-workspace {
    display: grid;
    grid-template-columns: 1fr;
    height: calc(100vh - 170px);
    overflow: hidden;
}

.workspace-panel {
    height: 100%;
    overflow-y: auto;
    padding: 16px;
    display: none; /* Hide panels by default on mobile */
    flex-direction: column;
    gap: 24px;
}

.workspace-panel.active {
    display: flex;
}

.editor-panel {
    background-color: #10121a;
    border-right: 1px solid var(--border-color);
}

/* Document Mode Selector Tabs */
.doc-mode-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.mode-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    padding: 10px;
    border-radius: 7px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.mode-tab.active {
    background-color: var(--bg-sidebar);
    color: var(--color-accent);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Cards & Glassmorphism in Editor */
.card-neon {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    transition: border-color var(--transition-normal), background-color var(--transition-normal);
}

.card-neon:hover {
    background-color: var(--bg-card-hover);
    border-color: rgba(167, 139, 250, 0.15);
}

.card-header {
    padding: 16px 20px;
    font-size: 14px;
    font-weight: 700;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.card-header.flex-header {
    justify-content: space-between;
}

.save-badge {
    margin-left: auto;
    font-size: 11px;
    color: var(--color-success);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.card-body {
    padding: 20px;
}

.card-body.pad-0 {
    padding: 0;
}

/* Form Styling */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.row {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 16px;
}

.col-6 {
    grid-column: span 6;
}

.col-12 {
    grid-column: span 12;
}

label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

.form-control {
    background-color: rgba(10, 10, 12, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-input);
    padding: 10px 14px;
    font-family: var(--font-app);
    font-size: 13.5px;
    border-radius: 8px;
    outline: none;
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--border-color-focus);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
    background-color: rgba(10, 10, 12, 0.9);
}

textarea.form-control {
    resize: vertical;
}

.form-subtitle {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-accent);
    margin: 20px 0 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

/* Dynamic Line Items Editor Table */
.items-editor-table {
    width: 100%;
    border-collapse: collapse;
}

.items-editor-table th {
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-align: left;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
}

.items-editor-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

.items-editor-table .form-control {
    padding: 6px 10px;
    font-size: 13px;
}

.items-editor-table input[type="number"] {
    text-align: center;
    -moz-appearance: textfield;
}

.items-editor-table input[type="number"]::-webkit-outer-spin-button,
.items-editor-table input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Preview Panel */
.preview-panel {
    background-color: #181b24;
    align-items: center;
}

.preview-toolbar {
    width: 100%;
    max-width: 800px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: 10px;
}

.preview-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-tip {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Printable A4 Sheet */
.a4-sheet-container {
    width: 100%;
    display: flex;
    padding: 10px;
    overflow-x: auto;
    justify-content: flex-start;
}

.a4-sheet {
    background-color: #ffffff;
    color: #1f2937;
    width: 794px; /* A4 Ratio Standard (794px x 1123px at 96 DPI) */
    min-height: 1123px;
    padding: 60px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    position: relative;
    box-sizing: border-box;
    zoom: 0.9;
    transform-origin: top left;
}

/* Sarabun Font Apply */
.font-sarabun {
    font-family: var(--font-doc);
    font-size: 14px;
    line-height: 1.6;
}

/* Document Template Formatting (Matches PDF exactly) */
.doc-header-block {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 2px solid #111827;
    padding-bottom: 12px;
    margin-bottom: 24px;
}

.doc-title {
    font-size: 26px;
    font-weight: 700;
    color: #111827;
    letter-spacing: 0.5px;
}

.doc-date-block {
    font-size: 15px;
    color: #374151;
    margin-top: 10px;
}

/* Sender & Receiver Info Grid */
.doc-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 24px;
}

.info-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.party-label {
    font-weight: 700;
    color: #111827;
    font-size: 14.5px;
    margin-bottom: 2px;
}

.party-details {
    color: #4b5563;
    font-size: 13.5px;
    line-height: 1.5;
}

.party-details strong {
    color: #111827;
    font-size: 14px;
    display: block;
    margin-bottom: 2px;
}

.party-details .address-text {
    margin-top: 4px;
    white-space: pre-line;
}

/* Document Payment Block */
.doc-payment-block {
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 14px 20px;
    margin-bottom: 24px;
    font-size: 13px;
    color: #374151;
}

.payment-title {
    font-weight: 700;
    color: #111827;
    margin-bottom: 6px;
}

.payment-detail-line {
    margin-bottom: 2px;
}

/* A4 Document Items Table */
.doc-items-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.doc-items-table th {
    border-bottom: 1.5px solid #111827;
    padding: 10px 8px;
    font-weight: 700;
    color: #111827;
    font-size: 13.5px;
    text-align: left;
}

.doc-items-table td {
    padding: 12px 8px;
    border-bottom: 1px solid #e5e7eb;
    color: #374151;
    font-size: 13.5px;
    vertical-align: middle;
}

.doc-items-table .col-desc {
    width: 55%;
}
.doc-items-table .col-qty {
    width: 10%;
}
.doc-items-table .col-price {
    width: 15%;
}
.doc-items-table .col-total {
    width: 20%;
}

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

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

/* Document Totals & Summary */
.doc-summary-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #111827;
    padding: 12px 8px;
    margin-bottom: 50px;
}

.word-amount {
    font-weight: 700;
    color: #111827;
    font-size: 14px;
}

.word-amount span {
    font-weight: 400;
    color: #4b5563;
}

.total-amount {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
}

/* Signatures block */
.doc-signatures-section {
    margin-top: auto; /* Push to bottom of A4 if layout height allows */
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}

.signature-line-group {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 13.5px;
    color: #111827;
    min-width: 220px;
}

.signature-img-wrapper {
    height: 45px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: -15px;
    z-index: 1;
    transform: translateX(45px);
}

.sig-img {
    max-height: 100%;
    max-width: 150px;
    object-fit: contain;
    mix-blend-mode: multiply;
}

.signature-line-group .sig-name {
    margin-top: 10px;
    color: #4b5563;
    font-weight: 500;
}
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: #1f2937;
    color: #ffffff;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    padding: 14px 20px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    z-index: 999;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s, transform 0.3s;
}

.toast.hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
}

.toast-icon {
    color: var(--color-accent);
}

/* Responsive & Mobile Styling */
.mobile-mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-sidebar);
}

.mob-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 14px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
}

.mob-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
    background-color: rgba(255, 255, 255, 0.02);
}

@media (min-width: 901px) {
    .app-container {
        display: grid;
        grid-template-columns: 280px 1fr;
        height: 100vh;
    }
    
    .app-header {
        border-right: 1px solid var(--border-color);
        border-bottom: none;
        padding: 24px;
        gap: 28px;
    }
    
    .logo-area {
        justify-content: flex-start;
    }
    
    .actions-group {
        flex-direction: column;
        margin-top: auto;
    }
    
    .app-workspace {
        grid-template-columns: 1fr 1.1fr;
        height: 100vh;
    }
    
    .mobile-mode-tabs {
        display: none;
    }
    
    .workspace-panel {
        display: flex !important;
        padding: 30px;
    }
    
    .preview-panel {
        align-items: center;
    }
    
    .a4-sheet-container {
        padding: 30px;
        padding-bottom: 40px;
        overflow-x: visible;
        justify-content: center;
    }
    
    .a4-sheet {
        zoom: 1;
        transform-origin: unset;
    }
}

/* ==========================================================================
   Print CSS Stylesheet (@media print)
   ========================================================================== */
@media print {
    /* Hide entire Web App container structures except the printable page */
    body, html {
        background-color: #ffffff !important;
        color: #000000 !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .app-container {
        display: block !important;
        height: auto !important;
    }
    
    .app-header,
    .mobile-mode-tabs,
    .editor-panel,
    .preview-toolbar,
    #toast,
    .actions-group {
        display: none !important;
    }
    
    .app-workspace {
        display: block !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .preview-panel {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
        background-color: #ffffff !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .a4-sheet-container {
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        overflow: visible !important;
    }
    
    .a4-sheet {
        width: 100% !important;
        min-height: 0 !important;
        height: auto !important;
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
        color: #000000 !important;
        background: #ffffff !important;
        font-size: 14pt !important;
        overflow: visible !important;
    }

    /* Print page breaks configuration */
    .doc-summary-section {
        page-break-inside: avoid;
    }
    
    .doc-signatures-section {
        page-break-inside: avoid;
        margin-top: 60px !important;
    }
}