/* ==========================================================================
   ISO 9001 Form Builder & Designer Stylesheet
   A4 Dikey (Portrait), A4 Yatay (Landscape) ve Mobil Tasarım Modları
   ========================================================================== */

.builder-layout {
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-main);
    overflow: hidden;
}

@media (max-width: 1200px) {
    .builder-layout {
        grid-template-columns: 240px 1fr 300px;
    }
}

/* 1. Left Sidebar: Field Palette */
.builder-palette {
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 20px 16px;
}

.palette-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.palette-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 24px;
}

.palette-item {
    background-color: var(--bg-card-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    cursor: grab;
    user-select: none;
    transition: all 0.2s ease;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
}

.palette-item:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.palette-item:active {
    cursor: grabbing;
}

.palette-item-icon {
    font-size: 20px;
    color: var(--primary);
}

/* 2. Middle: Canvas Workspace */
.builder-canvas-wrapper {
    background-color: var(--bg-card-subtle);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 24px;
    align-items: center;
}

.canvas-toolbar {
    width: 100%;
    max-width: 900px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.layout-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    background-color: var(--bg-card-subtle);
    padding: 4px;
    border-radius: var(--radius-sm);
}

.layout-btn {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}

.layout-btn.active {
    background-color: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* Canvas Document Sheet (A4 & Mobile) */
.form-sheet {
    background-color: #ffffff;
    color: #1e293b;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 30px;
    min-height: 900px;
    transition: width 0.3s ease, min-height 0.3s ease;
    position: relative;
}

/* A4 Portrait: 210mm x 297mm proportion */
.form-sheet.a4_portrait {
    width: 794px;
    min-height: 1123px;
}

/* A4 Landscape: 297mm x 210mm proportion */
.form-sheet.a4_landscape {
    width: 1123px;
    min-height: 794px;
}

/* Mobile responsive view */
.form-sheet.mobile {
    width: 390px;
    min-height: 750px;
    padding: 18px;
    border-radius: 28px;
    border: 8px solid #334155;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* ISO 9001 Standard Header Box */
.iso-header-box {
    border: 2px solid #0f172a;
    display: grid;
    grid-template-columns: 140px 1fr 180px;
    margin-bottom: 24px;
    font-family: inherit;
    text-align: center;
}

.iso-header-logo {
    border-right: 2px solid #0f172a;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
}

.iso-header-title-box {
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 2px solid #0f172a;
}

.iso-doc-title {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.iso-header-meta {
    display: grid;
    grid-template-rows: repeat(4, 1fr);
    font-size: 11px;
    text-align: left;
}

.iso-meta-row {
    display: flex;
    border-bottom: 1px solid #0f172a;
    padding: 3px 8px;
    align-items: center;
}

.iso-meta-row:last-child {
    border-bottom: none;
}

.iso-meta-key {
    font-weight: 700;
    width: 80px;
}

/* Form Drop Grid Container */
.form-fields-container {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    min-height: 350px;
    padding: 12px;
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-md);
    background-color: rgba(248, 250, 252, 0.6);
}

.form-fields-container.drag-over {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

/* Form Field Dropped Item */
.builder-field-item {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.builder-field-item:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.builder-field-item.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary);
    background-color: #faf5ff;
}

.field-drag-handle {
    position: absolute;
    top: 6px;
    right: 32px;
    color: #94a3b8;
    cursor: grab;
    font-size: 13px;
}

.field-remove-btn {
    position: absolute;
    top: 6px;
    right: 8px;
    color: var(--accent-rose);
    cursor: pointer;
    font-size: 14px;
    padding: 2px 4px;
    border-radius: 4px;
}

.field-remove-btn:hover {
    background-color: #ffe4e6;
}

.builder-field-label {
    font-size: 13px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.builder-field-label .required-star {
    color: var(--accent-rose);
}

.builder-field-preview {
    font-size: 13px;
    color: #64748b;
}

/* 3. Right Sidebar: Field & Form Properties */
.builder-properties {
    background-color: var(--bg-card);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 20px 18px;
}

.properties-tab-header {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.properties-tab-btn {
    flex: 1;
    padding: 10px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
}

.properties-tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Digital Signature Canvas Box */
.signature-box-wrapper {
    border: 2px dashed var(--border-subtle);
    border-radius: var(--radius-md);
    background-color: var(--bg-card-subtle);
    padding: 10px;
    text-align: center;
    position: relative;
}

.signature-canvas {
    width: 100%;
    height: 140px;
    background-color: #ffffff;
    border-radius: var(--radius-sm);
    cursor: crosshair;
    touch-action: none;
}

.signature-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
    gap: 8px;
}

/* Dynamic Table Grid in Form */
.grid-builder-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 13px;
}

.grid-builder-table th, .grid-builder-table td {
    border: 1px solid #cbd5e1;
    padding: 8px 10px;
}

.grid-builder-table th {
    background-color: #f1f5f9;
    font-weight: 700;
}