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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
}

/* Editor Container */
.editor-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.editor-header {
    background: #1e293b;
    padding: 1rem 2rem;
    border-bottom: 1px solid #334155;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #f1f5f9;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Main Layout */
.editor-main {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Sidebar */
.editor-sidebar {
    width: 300px;
    background: #1e293b;
    border-right: 1px solid #334155;
    padding: 1.5rem;
    overflow-y: auto;
}

.upload-section {
    margin-bottom: 2rem;
}

.tools-section {
    margin-top: 1rem;
}

.editor-sidebar h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f1f5f9;
}

/* Upload Area */
.upload-area {
    border: 2px dashed #475569;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #0f172a;
}

.upload-area:hover {
    border-color: #3b82f6;
    background: #1e293b;
}

.upload-area.dragover {
    border-color: #3b82f6;
    background: #1e293b;
    transform: scale(1.02);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.upload-content svg {
    color: #64748b;
    margin-bottom: 1rem;
}

.upload-content p {
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Tool Panels */
.tool-panel {
    margin-bottom: 1rem;
    border: 1px solid #334155;
    border-radius: 8px;
    overflow: hidden;
    background: #0f172a;
}

.tool-btn {
    width: 100%;
    padding: 1rem;
    background: transparent;
    border: none;
    color: #e2e8f0;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.tool-btn:hover:not(:disabled) {
    background: #1e293b;
    color: #3b82f6;
}

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

.tool-btn.active {
    background: #3b82f6;
    color: white;
}

.tool-btn svg {
    flex-shrink: 0;
}

/* Tool Controls */
.tool-controls {
    padding: 1rem;
    border-top: 1px solid #334155;
    background: #1e293b;
    animation: fadeIn 0.2s ease;
}

.control-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.control-row:last-child {
    margin-bottom: 0;
}

.control-row label {
    font-size: 0.9rem;
    color: #cbd5e1;
    min-width: 80px;
}

/* Input Fields */
.input-field {
    background: #0f172a;
    border: 1px solid #475569;
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: #e2e8f0;
    font-size: 0.9rem;
    width: 100%;
}

.input-field:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Select Dropdown */
select.input-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
    cursor: pointer;
}

select.input-field option {
    background: #1e293b;
    color: #e2e8f0;
    padding: 0.5rem;
}

/* Sliders */
.slider {
    flex: 1;
    height: 6px;
    background: #475569;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: #3b82f6;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: #2563eb;
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #3b82f6;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Color Picker */
.color-picker {
    width: 40px;
    height: 32px;
    border: 1px solid #475569;
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
}

/* Style Buttons */
.style-btn {
    padding: 0.5rem;
    background: #0f172a;
    border: 1px solid #475569;
    border-radius: 4px;
    color: #e2e8f0;
    cursor: pointer;
    font-weight: bold;
    min-width: 36px;
    transition: all 0.2s ease;
}

.style-btn:hover {
    background: #1e293b;
    border-color: #3b82f6;
}

.style-btn.active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

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

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #2563eb;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #475569;
    color: #e2e8f0;
}

.btn-secondary:hover:not(:disabled) {
    background: #64748b;
}

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

/* Canvas Container */
.canvas-container {
    flex: 1;
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.canvas-wrapper {
    position: relative;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    max-width: 95%;
    max-height: 95%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#main-canvas {
    display: block;
    border-radius: 8px;
    width: auto;
    height: auto;
    max-width: none;
    max-height: none;
    transition: filter 0.1s ease;
}

.canvas-placeholder {
    text-align: center;
    color: #64748b;
}

.canvas-placeholder svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.canvas-placeholder h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: #94a3b8;
}

/* Crop Overlay */
#crop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px dashed #3b82f6;
    background: rgba(59, 130, 246, 0.1);
    pointer-events: none;
}

/* Value Labels */
.control-row span {
    min-width: 50px;
    text-align: right;
    font-size: 0.8125rem;
    color: #94a3b8;
    font-weight: 500;
}

/* Filter-specific slider styling for dark theme */
#brightness-slider {
    background: linear-gradient(to right, #1e293b, #f1f5f9);
}

#contrast-slider {
    background: linear-gradient(to right, #64748b, #1e293b, #f1f5f9);
}

#saturation-slider {
    background: linear-gradient(to right, #64748b, #ef4444);
}

#blur-slider {
    background: linear-gradient(to right, #3b82f6, #93c5fd);
}

#grayscale-slider {
    background: linear-gradient(to right, #ef4444, #64748b);
}

#sepia-slider {
    background: linear-gradient(to right, #1e293b, #d2b48c);
}

#hue-slider {
    background: linear-gradient(to right, 
        #ef4444, #f97316, #eab308, #84cc16, 
        #22c55e, #06b6d4, #3b82f6, #8b5cf6, 
        #d946ef, #ec4899, #ef4444);
}

/* Text Element Styling */
.text-element {
    position: absolute;
    cursor: move;
    user-select: none;
    min-width: 20px;
    min-height: 20px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid transparent;
    border-radius: 4px;
    white-space: nowrap;
    z-index: 10;
    transition: all 0.2s ease;
    font-family: Arial, sans-serif;
    outline: none;
}

.text-element:hover {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.text-element.selected {
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.text-element.dragging {
    transform: rotate(2deg);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.text-element[contenteditable="true"]:focus {
    cursor: text;
    user-select: text;
    border-color: #10b981;
}

/* Crop Tool Styles */
#crop-overlay {
    position: absolute;
    pointer-events: auto;
    z-index: 100;
    background: rgba(0, 0, 0, 0.4);
}

.crop-selection {
    position: absolute;
    border: 2px dashed #3b82f6;
    background: transparent;
    cursor: move;
    min-width: 20px;
    min-height: 20px;
}

.crop-selection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    box-shadow: 
        0 0 0 1000px rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.crop-inner {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
}

.crop-handles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.crop-handle {
    position: absolute;
    background: #3b82f6;
    border: 2px solid #ffffff;
    border-radius: 50%;
    width: 12px;
    height: 12px;
    transform: translate(-50%, -50%);
    z-index: 101;
}

.crop-handle:hover {
    background: #2563eb;
    transform: translate(-50%, -50%) scale(1.2);
}

/* Corner handles */
.crop-handle.nw {
    top: 0;
    left: 0;
    cursor: nw-resize;
}

.crop-handle.ne {
    top: 0;
    right: 0;
    cursor: ne-resize;
}

.crop-handle.sw {
    bottom: 0;
    left: 0;
    cursor: sw-resize;
}

.crop-handle.se {
    bottom: 0;
    right: 0;
    cursor: se-resize;
}

/* Edge handles */
.crop-handle.n {
    top: 0;
    left: 50%;
    cursor: n-resize;
}

.crop-handle.s {
    bottom: 0;
    left: 50%;
    cursor: s-resize;
}

.crop-handle.w {
    top: 50%;
    left: 0;
    cursor: w-resize;
}

.crop-handle.e {
    top: 50%;
    right: 0;
    cursor: e-resize;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar Styling */
.editor-sidebar::-webkit-scrollbar {
    width: 6px;
}

.editor-sidebar::-webkit-scrollbar-track {
    background: #1e293b;
}

.editor-sidebar::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 3px;
}

.editor-sidebar::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Home Page Styles */
.home-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: #0f172a;
}

.home-header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    padding: 4rem 2rem;
    text-align: center;
    border-bottom: 1px solid #334155;
}

.home-header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 1rem;
}

.home-header p {
    font-size: 1.25rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto;
}

.home-main {
    flex: 1;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.home-card {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.home-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border-color: #3b82f6;
}

.home-card.featured {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-color: #2563eb;
    margin-bottom: 3rem;
    color: white;
}

.card-icon {
    margin-bottom: 1.5rem;
    color: #3b82f6;
}

.home-card.featured .card-icon {
    color: white;
}

.home-card h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f1f5f9;
}

.home-card.featured h2 {
    color: white;
}

.home-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f1f5f9;
}

.home-card p {
    color: #94a3b8;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.home-card.featured p {
    color: rgba(255, 255, 255, 0.9);
}

.home-btn {
    padding: 0.75rem 2rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.home-btn.primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.home-btn.primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.home-footer {
    background: #1e293b;
    border-top: 1px solid #334155;
    padding: 2rem;
    text-align: center;
    color: #64748b;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .editor-sidebar {
        width: 250px;
    }
    
    .home-header h1 {
        font-size: 2.5rem;
    }
    
    .home-header p {
        font-size: 1.125rem;
    }
}

@media (max-width: 768px) {
    .editor-main {
        flex-direction: column;
    }
    
    .editor-sidebar {
        width: 100%;
        height: auto;
        max-height: 300px;
        order: 2;
    }
    
    .canvas-container {
        order: 1;
        min-height: 400px;
    }
    
    .editor-header {
        padding: 1rem;
    }
    
    .editor-header h1 {
        font-size: 1.25rem;
    }
    
    .home-header {
        padding: 2rem 1rem;
    }
    
    .home-header h1 {
        font-size: 2rem;
    }
    
    .home-main {
        padding: 2rem 1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .home-card {
        padding: 1.5rem;
    }
}

/* Filter-specific styles */
.filter-preview {
    transition: filter 0.1s ease;
}

/* Smooth transitions for tool panels */
.tool-controls {
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}