/* Design System - Professional Tool Aesthetic */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Refined neutral palette */
    --zinc-950: #09090b;
    --zinc-900: #18181b;
    --zinc-800: #27272a;
    --zinc-700: #3f3f46;
    --zinc-600: #52525b;
    --zinc-500: #71717a;
    --zinc-400: #a1a1aa;
    --zinc-300: #d4d4d8;
    --zinc-200: #e4e4e7;
    --zinc-100: #f4f4f5;
    --zinc-50: #fafafa;

    /* Distinctive amber accent */
    --amber-500: #f59e0b;
    --amber-600: #d97706;
    --amber-700: #b45309;

    /* Semantic colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f4f4f5;
    --border-primary: #e4e4e7;
    --border-secondary: #d4d4d8;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-tertiary: #a1a1aa;
    --accent: var(--amber-500);
    --accent-hover: var(--amber-600);

    /* Spacing system */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;

    /* Typography */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    padding: var(--space-4) var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.header-actions {
    display: flex;
    gap: var(--space-3);
}

/* Buttons - SHADCN Inspired */
.btn {
    height: 36px;
    padding: 0 var(--space-4);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    white-space: nowrap;
    position: relative;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background-color: var(--text-primary);
    color: white;
    border-color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--zinc-700);
    border-color: var(--zinc-700);
}

.btn-secondary {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

.btn-block {
    width: 100%;
    margin-top: var(--space-2);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.btn-block:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

.btn-block.btn-secondary {
    background-color: var(--bg-primary);
    border-color: var(--border-primary);
}

#btnAutoFit {
    background: linear-gradient(135deg, var(--accent) 0%, var(--amber-600) 100%);
    color: white;
    border: none;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}

#btnAutoFit:hover {
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background-color: #ef4444;
    color: white;
    border-color: #ef4444;
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebars */
.sidebar {
    background-color: var(--bg-primary);
    padding: var(--space-6);
    overflow-y: auto;
    border-right: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
}

.sidebar-left {
    width: 320px;
}

.sidebar-right {
    width: 340px;
    border-left: 1px solid var(--border-primary);
    border-right: none;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-primary);
}

.panel {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-primary);
}

.panel:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.panel h2 {
    font-size: 0.75rem;
    margin-bottom: var(--space-4);
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Form Elements - SHADCN Inspired */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    height: 36px;
    padding: 0 var(--space-3);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.05);
}

.form-group input[type="text"]:hover:not(:focus),
.form-group input[type="number"]:hover:not(:focus),
.form-group select:hover:not(:focus) {
    border-color: var(--border-secondary);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23a1a1aa' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-group input[type="color"] {
    width: 100%;
    height: 36px;
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    cursor: pointer;
    background-color: var(--bg-primary);
}

.form-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 4px;
}

.form-group input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border-primary);
    border-radius: 4px;
}

.form-group input[type="range"] {
    width: calc(100% - 50px);
    height: 4px;
    background: var(--border-primary);
    border-radius: 2px;
    outline: none;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: var(--shadow-md);
}

.form-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-right: var(--space-2);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    cursor: pointer;
}

/* Unit Toggle */
.unit-toggle {
    display: flex;
    gap: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    padding: 2px;
}

.unit-btn {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.unit-btn:hover {
    color: var(--text-primary);
}

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

.margin-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.margin-inputs input {
    width: 100%;
}

.custom-size {
    margin-top: var(--space-4);
}

.hidden {
    display: none !important;
}

.label-count {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    text-align: center;
    font-size: 0.875rem;
}

.label-count strong {
    color: var(--text-secondary);
    font-weight: 500;
}

.label-count span {
    color: var(--text-primary);
    font-weight: 600;
    margin-left: var(--space-1);
}

/* Canvas Area */
.canvas-area {
    flex: 1;
    min-height: 0; /* Enable height constraint for nested flex containers */
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at 30% 50%, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
}

/* Keyboard Shortcuts Banner */
.shortcuts-banner {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    background: linear-gradient(135deg, var(--zinc-900) 0%, var(--zinc-800) 100%);
    color: white;
    padding: var(--space-3) var(--space-5);
    border-radius: 0 0 12px 12px;
    border: 1px solid var(--zinc-700);
    border-top: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4),
                0 2px 8px rgba(0, 0, 0, 0.2),
                0 0 0 1px rgba(245, 158, 11, 0.15);
    animation: bannerSlideDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 90%;
}

@keyframes bannerSlideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.shortcuts-banner.hidden {
    display: none;
}

.shortcuts-banner-content {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.shortcuts-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 8px;
    flex-shrink: 0;
    color: var(--zinc-900);
}

.shortcuts-items {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.shortcut-item kbd {
    background-color: var(--zinc-700);
    color: white;
    border: 1px solid var(--zinc-600);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    font-weight: 700;
}

.shortcut-item span {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.95;
}

.shortcut-divider {
    width: 1px;
    height: 20px;
    background-color: var(--zinc-700);
}

.canvas-wrapper {
    flex: 1;
    min-height: 0; /* Enable height constraint for nested flex containers */
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    background-color: var(--bg-primary);
    padding: var(--space-2);
    border-radius: 8px;
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
    width: fit-content;
}

.zoom-controls button {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-primary);
    background-color: var(--bg-primary);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.zoom-controls button:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-secondary);
}

.zoom-controls button:active {
    transform: scale(0.95);
}

.zoom-controls span {
    min-width: 56px;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.canvas-container {
    flex: 1;
    min-height: 0; /* Allow flex child to shrink and enable scrolling */
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: var(--space-8);
}

.page-preview {
    background-color: white;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
    transform-origin: top center;
    border-radius: 2px;
}

/* Label Template Editor */
.label-template {
    position: absolute;
    top: 24px;
    left: 24px;
    background-color: white;
    border: 2px dashed var(--accent);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.08), var(--shadow-lg);
    z-index: 100;
    transition: box-shadow 0.2s ease;
}

.label-template:hover {
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12), var(--shadow-lg);
}

.template-border {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* Alignment Guides */
.guide-line {
    position: absolute;
    pointer-events: none;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.guide-line.visible {
    opacity: 1;
    animation: guidelinePulse 1.5s ease-in-out infinite;
}

@keyframes guidelinePulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.guide-line.horizontal {
    width: 100%;
    height: 2px;
    left: 0;
}

.guide-line.vertical {
    width: 2px;
    height: 100%;
    top: 0;
}

/* Center guides - bright magenta */
#guideHCenter,
#guideVCenter {
    background: linear-gradient(90deg,
        transparent 0%,
        #ff00ff 20%,
        #ff00ff 80%,
        transparent 100%);
    box-shadow: 0 0 8px rgba(255, 0, 255, 0.8),
                0 0 16px rgba(255, 0, 255, 0.4);
}

#guideVCenter {
    background: linear-gradient(180deg,
        transparent 0%,
        #ff00ff 20%,
        #ff00ff 80%,
        transparent 100%);
}

/* Edge guides - cyan */
#guideTop,
#guideBottom,
#guideLeft,
#guideRight {
    background: linear-gradient(90deg,
        transparent 0%,
        #00d4ff 20%,
        #00d4ff 80%,
        transparent 100%);
    box-shadow: 0 0 6px rgba(0, 212, 255, 0.7),
                0 0 12px rgba(0, 212, 255, 0.3);
}

#guideLeft,
#guideRight {
    background: linear-gradient(180deg,
        transparent 0%,
        #00d4ff 20%,
        #00d4ff 80%,
        transparent 100%);
}

/* Label Elements */
.label-element {
    position: absolute;
    cursor: move;
    user-select: none;
    border: 1.5px solid transparent;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.label-element:hover {
    border-color: var(--zinc-300);
}

.label-element.selected {
    border: 2px solid var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    position: relative;
}

.label-element.text-element {
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
}

.label-element.image-element {
    display: flex;
    align-items: center;
    justify-content: center;
}

.label-element.image-element img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

/* Resize Handles */
.resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--accent);
    border: 2px solid white;
    border-radius: 50%;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: all 0.15s ease;
}

.resize-handle:hover {
    transform: scale(1.2);
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}

.resize-handle.nw { top: -4px; left: -4px; cursor: nw-resize; }
.resize-handle.ne { top: -4px; right: -4px; cursor: ne-resize; }
.resize-handle.sw { bottom: -4px; left: -4px; cursor: sw-resize; }
.resize-handle.se { bottom: -4px; right: -4px; cursor: se-resize; }
.resize-handle.n { top: -4px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.resize-handle.s { bottom: -4px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.resize-handle.e { top: 50%; right: -4px; transform: translateY(-50%); cursor: e-resize; }
.resize-handle.w { top: 50%; left: -4px; transform: translateY(-50%); cursor: w-resize; }

/* Rotation Handle */
.rotation-handle {
    position: absolute;
    top: -32px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--amber-600) 100%);
    border: 2px solid white;
    border-radius: 50%;
    cursor: grab;
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    transition: all 0.15s ease;
}

.rotation-handle:hover {
    transform: translateX(-50%) scale(1.1);
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.4);
}

.rotation-handle:active {
    cursor: grabbing;
}

.rotation-handle::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 10px;
    background-color: var(--accent);
}

/* Layers List */
.layers-list {
    max-height: 320px;
    overflow-y: auto;
}

.layer-item {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-2);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.layer-item:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

.layer-item.active {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.05) 100%);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.08);
}

.layer-icon {
    width: 20px;
    height: 20px;
    font-size: 0.625rem;
    font-weight: 600;
    font-family: var(--font-mono);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.layer-name {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.layer-delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.layer-delete-btn:hover {
    background-color: #fee2e2;
    border-color: #fecaca;
    color: #dc2626;
}

.layer-delete-btn:active {
    transform: scale(0.95);
    background-color: #fecaca;
}

.layer-delete-btn svg {
    pointer-events: none;
}

/* No Selection Message */
.no-selection {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    color: var(--text-tertiary);
}

.no-selection p {
    font-size: 0.875rem;
}

/* Accordion */
.accordion-item {
    margin-bottom: var(--space-2);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.accordion-header {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    font-family: var(--font-sans);
    transition: all 0.15s ease;
}

.accordion-header:hover {
    background-color: var(--bg-tertiary);
}

.accordion-header span {
    flex: 1;
    text-align: left;
}

.accordion-icon {
    transition: transform 0.2s ease;
    color: var(--text-tertiary);
}

.accordion-header.expanded .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--bg-primary);
}

.accordion-content.open {
    max-height: 1000px;
    padding: var(--space-4);
    padding-top: 0;
}

/* Keyboard Tips */
.keyboard-tips {
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
    padding: var(--space-4);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(245, 158, 11, 0.02) 100%);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 8px;
}

.tips-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--amber-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

.tips-header svg {
    color: var(--accent);
}

.tips-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.tip-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    font-size: 0.8125rem;
}

.tip-keys {
    display: flex;
    align-items: center;
    gap: 3px;
    flex-wrap: wrap;
}

.tip-item span {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-align: right;
    flex: 1;
}

kbd {
    display: inline-block;
    padding: 2px 6px;
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05), inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    white-space: nowrap;
}

/* Label Preview on Page */
.label-on-page {
    position: absolute;
    border: 1px solid #ddd;
    overflow: hidden;
    background-color: white;
}

.label-on-page.rectangle {
    /* Default shape */
}

.label-on-page.circle {
    border-radius: 50%;
}

.label-on-page.ellipse {
    border-radius: 50%;
}

/* Print Styles */
@media print {
    body {
        background-color: white;
    }

    .header,
    .sidebar,
    .zoom-controls {
        display: none !important;
    }

    .canvas-area {
        background-color: white;
    }

    .canvas-container {
        padding: 0;
        overflow: visible;
    }

    .page-preview {
        box-shadow: none;
        page-break-after: always;
    }

    .label-template {
        display: none !important;
    }

    .label-element {
        border: none !important;
        box-shadow: none !important;
    }

    .resize-handle,
    .rotation-handle {
        display: none !important;
    }
}

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

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.2s ease-out;
}

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

.modal-content {
    position: relative;
    background-color: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-primary);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.24);
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-24px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-primary);
}

.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.btn-close:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-close:active {
    transform: scale(0.95);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--space-6);
    border-top: 1px solid var(--border-primary);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    background-color: var(--bg-secondary);
}

.modal-footer .btn {
    margin: 0;
}

.help-text {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: var(--space-2);
    margin-bottom: var(--space-4);
    line-height: 1.5;
}

.margin-inputs-advanced {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.margin-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

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

.margin-input-group input {
    height: 36px;
    padding: 0 var(--space-3);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.margin-input-group input:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.05);
}

.margin-input-group input:hover:not(:focus) {
    border-color: var(--border-secondary);
}

#btnFitPage{
    width: 100px;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--zinc-400);
    border-radius: 6px;
    border: 2px solid var(--bg-tertiary);
    transition: background 0.15s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--zinc-500);
}

::-webkit-scrollbar-thumb:active {
    background: var(--zinc-600);
}

/* Responsive Design */
@media (max-width: 1400px) {
    .sidebar-left,
    .sidebar-right {
        width: 280px;
    }
}

@media (max-width: 1200px) {
    .sidebar-left,
    .sidebar-right {
        width: 250px;
        padding: 1rem;
    }
}