/* ===================================
   PDF Editor - Modern SaaS Dashboard
   =================================== */

/* === CSS Variables === */
:root {
    /* Colors - Light, professional palette */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;

    --color-secondary: #64748b;
    --color-secondary-hover: #475569;

    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;

    --color-bg-base: #f8fafc;
    --color-bg-card: #ffffff;
    --color-bg-hover: #f1f5f9;

    --color-border: #e2e8f0;
    --color-border-focus: #2563eb;

    --color-text-primary: #0f172a;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* === Header === */
.header {
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-2xl);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    stroke-width: 2;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.header-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.status-badge.processing {
    background: #fef3c7;
    color: var(--color-warning);
}

.status-badge.success {
    background: #d1fae5;
    color: var(--color-success);
}

/* === Main Content Grid === */
.main-content {
    margin-bottom: var(--spacing-2xl);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-xl);
}

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

/* === Card Component === */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.card-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

.card-body {
    padding: var(--spacing-lg);
}

/* === Upload Zone === */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--color-bg-base);
}

.upload-zone:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-zone.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: scale(1.02);
}

.upload-content {
    pointer-events: none;
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin: 0 auto var(--spacing-md);
    stroke-width: 2;
}

.upload-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.upload-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.upload-specs {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* === Upload Progress === */
.upload-progress {
    margin-top: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-bg-base);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-align: center;
}

/* === Page Grid === */
.page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
}

.page-item {
    position: relative;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: move;
    transition: all 0.2s ease;
    background: var(--color-bg-card);
}

.page-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.page-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.page-item.deleted {
    opacity: 0.4;
    border-color: var(--color-danger);
    background: #fef2f2;
}

.page-thumbnail {
    width: 100%;
    aspect-ratio: 8.5 / 11;
    object-fit: cover;
    display: block;
    background: var(--color-bg-base);
}

.page-info {
    padding: var(--spacing-sm);
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-number {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* === Page Item Actions === */
.page-actions-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Cover image area */
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.2s ease;
    backdrop-filter: blur(2px);
    /* SaaS glass effect */
    z-index: 5;
    border-radius: var(--radius-md);
    /* Match card radius */
}

.page-item:hover .page-actions-overlay {
    opacity: 1;
}

.btn-sign-page {
    background: white;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    /* Consistent rounding */
    font-weight: 500;
    font-size: 0.9rem;
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transform: translateY(4px);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-item:hover .btn-sign-page {
    transform: translateY(0);
}

.btn-sign-page:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.2);
    /* Colored shadow */
}

.btn-rotate-page {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    background: white;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    z-index: 6;
    opacity: 0;
    transition: all 0.2s ease;
}

.page-item:hover .btn-rotate-page {
    opacity: 1;
}

.btn-rotate-page:hover {
    background: var(--color-bg-hover);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Rotation Transforms */
.page-thumbnail {
    transition: transform 0.3s ease;
}

/* We rotate the IMAGE, not the container, to keep buttons accessible at normal orientation */
.rotate-90 {
    transform: rotate(90deg);
}

.rotate-180 {
    transform: rotate(180deg);
}

.rotate-270 {
    transform: rotate(270deg);
}

.page-delete-floating {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    background: white;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    /* Match aesthetic */
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    z-index: 10;
    opacity: 0;
    transition: all 0.2s ease;
}

.page-item:hover .page-delete-floating {
    opacity: 1;
}

.page-delete-floating:hover {
    background: #fef2f2;
    color: var(--color-danger);
    border-color: #fee2e2;
}

.page-delete-floating.restore:hover {
    background: #f0fdf4;
    color: var(--color-success);
    border-color: #dcfce7;
}

/* Hide old styles if any remain */

.page-restore-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(254, 242, 242, 0.4);
    z-index: 5;
    pointer-events: none;
    /* Let the button handle clicks */
}

.btn-restore-page {
    background: white;
    color: var(--color-success);
    border: 1px solid var(--color-success);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
}

/* === Right Panel === */
.sticky-panel {
    position: sticky;
    top: var(--spacing-lg);
}

/* === Summary Card === */
.summary-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-bg-base);
    border-radius: var(--radius-md);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat-deleted {
    color: var(--color-danger);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.btn-block {
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

/* === Help Card === */
.help-card {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.help-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.help-list {
    list-style: none;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.help-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.help-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* === Utility Classes === */
.hidden {
    display: none !important;
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-item {
    animation: fadeIn 0.3s ease;
}

/* === Loading Spinner === */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* === Signatures === */
.signature-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    min-height: 60px;
}

.signature-item {
    width: 80px;
    height: 50px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    cursor: move;
    background: white;
}

.signature-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.signature-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.empty-signatures {
    width: 100%;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding: var(--spacing-sm);
}

/* === Modals === */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.full-screen-modal .modal-content {
    width: 95%;
    max-width: 1200px;
    height: 90vh;
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-secondary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* === Scanner Styles === */
.scan-area {
    background: var(--color-bg-base);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    position: relative;
}

.scan-placeholder {
    text-align: center;
    cursor: pointer;
    padding: var(--spacing-xl);
}

#scanCanvas {
    max-width: 100%;
    max-height: 100%;
}

.control-group {
    margin-bottom: var(--spacing-md);
}

.control-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.control-group input[type=range] {
    width: 100%;
}

/* === Editor Styles === */
.editor-body {
    display: flex;
    gap: var(--spacing-lg);
    padding: 0;
    overflow: hidden;
}

.editor-sidebar {
    width: 250px;
    background: var(--color-bg-base);
    padding: var(--spacing-lg);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.editor-sidebar h4 {
    margin-bottom: var(--spacing-md);
}

.editor-canvas-container {
    flex: 1;
    background: #f1f5f9;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Center the wrapper */
    overflow: auto;
    position: relative;
}

.editor-image-wrapper {
    position: relative;
    /* Anchor for overlays */
    display: inline-block;
    /* Shrink to fit image */
    line-height: 0;
    /* Remove vertical gap */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.editor-page-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    /* Box shadow moved to wrapper */
    user-select: none;
}

.draggable-signatures {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.signature-thumb {
    border: 1px solid var(--color-border);
    padding: 4px;
    background: white;
    transition: all 0.2s;
}

.signature-thumb:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.signature-overlay {
    position: absolute;
    z-index: 10;
    user-select: none;
    cursor: move;
    /* Indicate draggable */
    border: 1px solid transparent;
    /* Highlight on hover */
}

.signature-overlay:hover,
.signature-overlay.active {
    outline: 2px dashed var(--color-primary);
    background: rgba(255, 255, 255, 0.2);
    /* Slight tint to see bounds */
}

.overlay-delete {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 20px;
    height: 20px;
    background: var(--color-danger);
    color: white;
    border-radius: 50%;
    display: flex;
    /* Always show, but manage via JS or hover? Hover is fine */
    align-items: center;
    justify-content: center;
    font-size: 12px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    display: none;
    z-index: 12;
}

.signature-overlay:hover .overlay-delete {
    display: flex;
}

.overlay-resize {
    position: absolute;
    bottom: -5px;
    right: -5px;
    width: 15px;
    height: 15px;
    background: white;
    border: 1px solid var(--color-primary);
    border-radius: 50%;
    cursor: nwse-resize;
    display: none;
    z-index: 11;
}

.signature-overlay:hover .overlay-resize {
    display: block;
}