/* Advanced Image Merger - Enhanced Styles */
:root {
    /* Light Theme */
    --aim-primary: #4361ee;
    --aim-secondary: #3a0ca3;
    --aim-success: #4cc9f0;
    --aim-danger: #f72585;
    --aim-warning: #f8961e;
    --aim-info: #4895ef;
    --aim-purple: #7209b7;
    --aim-teal: #06d6a0;
    
    --aim-bg-primary: #f8f9fa;
    --aim-bg-secondary: #ffffff;
    --aim-text-primary: #2d3748;
    --aim-text-secondary: #4a5568;
    --aim-border: #e2e8f0;
    --aim-shadow: rgba(0, 0, 0, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4361ee, #3a0ca3);
    --gradient-success: linear-gradient(135deg, #4cc9f0, #4895ef);
    --gradient-danger: linear-gradient(135deg, #f72585, #b5179e);
    --gradient-warning: linear-gradient(135deg, #f8961e, #f3722c);
}

[data-theme="dark"] {
    /* Dark Theme */
    --aim-bg-primary: #1a202c;
    --aim-bg-secondary: #2d3748;
    --aim-text-primary: #f7fafc;
    --aim-text-secondary: #e2e8f0;
    --aim-border: #4a5568;
    --aim-shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--aim-primary) 0%, var(--aim-secondary) 100%);
    color: var(--aim-text-primary);
    min-height: 100vh;
    transition: all 0.3s ease;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.theme-btn {
    background: var(--aim-bg-secondary);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--aim-shadow);
    color: var(--aim-text-primary);
    font-size: 1.2rem;
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.theme-btn:hover {
    transform: rotate(15deg) scale(1.1);
    background: var(--aim-primary);
    color: white;
}

/* Main Dashboard */
.advanced-image-merger-dashboard {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    animation: fadeInUp 0.8s ease-out;
}

.aim-header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

.aim-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #ffffff, #4cc9f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: typewriter 3.5s steps(40, end);
}

.aim-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.5s both;
}

/* AI Panel */
.aim-ai-panel {
    background: var(--aim-bg-secondary);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 8px 25px var(--aim-shadow);
    border-left: 4px solid var(--aim-success);
    animation: slideInRight 0.6s ease-out;
}

.ai-suggestion-card {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--aim-text-primary);
}

.ai-suggestion-card i {
    color: var(--aim-success);
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

.ai-apply-btn {
    background: var(--aim-success);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    margin-left: auto;
    transition: all 0.3s ease;
}

.ai-apply-btn:hover {
    background: var(--aim-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

/* Upload Section */
.aim-upload-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.aim-image-box {
    background: var(--aim-bg-secondary);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 25px var(--aim-shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.aim-image-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(67, 97, 238, 0.1), transparent);
    transition: left 0.5s ease;
}

.aim-image-box:hover::before {
    left: 100%;
}

.aim-box-glow:hover {
    box-shadow: 0 12px 35px var(--aim-shadow);
    transform: translateY(-5px);
}

.aim-image-box h3 {
    color: var(--aim-text-primary);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.aim-image-box h3 i {
    color: var(--aim-primary);
    margin-right: 10px;
}

/* Upload Area */
.aim-upload-area {
    border: 2px dashed var(--aim-border);
    border-radius: 10px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    margin-bottom: 20px;
}

.aim-upload-area:hover {
    border-color: var(--aim-primary);
    background: rgba(67, 97, 238, 0.05);
    transform: scale(1.02);
}

.aim-upload-area i {
    font-size: 3rem;
    color: var(--aim-border);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.aim-upload-area:hover i {
    color: var(--aim-primary);
    transform: scale(1.1) rotate(5deg);
}

.aim-file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* Preview Area */
.aim-preview {
    min-height: 200px;
    border: 1px solid var(--aim-border);
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--aim-bg-primary);
    position: relative;
    overflow: hidden;
}

.aim-preview img {
    max-width: 100%;
    max-height: 200px;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.aim-preview img:hover {
    transform: scale(1.05);
}

/* Caption Section */
.aim-caption-section {
    margin-top: 20px;
}

.aim-caption-section textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--aim-border);
    border-radius: 8px;
    background: var(--aim-bg-primary);
    color: var(--aim-text-primary);
    resize: vertical;
    margin-bottom: 10px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.aim-caption-section textarea:focus {
    outline: none;
    border-color: var(--aim-primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
    transform: translateY(-2px);
}

.aim-ai-caption-btn {
    background: linear-gradient(135deg, var(--aim-info), var(--aim-primary));
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
    font-weight: 600;
}

.aim-ai-caption-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

/* Enhanced Control Panel */
.aim-control-panel {
    background: var(--aim-bg-secondary);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 8px 25px var(--aim-shadow);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.aim-control-section h3 {
    color: var(--aim-text-primary);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.aim-control-section h3 i {
    color: var(--aim-primary);
    margin-right: 10px;
}

.aim-control-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.aim-control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aim-control-group label {
    font-weight: 600;
    color: var(--aim-text-primary);
}

.aim-control-group select,
.aim-control-group input[type="color"],
.aim-control-group input[type="range"],
.aim-control-group input[type="text"] {
    padding: 10px;
    border: 1px solid var(--aim-border);
    border-radius: 8px;
    background: var(--aim-bg-primary);
    color: var(--aim-text-primary);
    transition: all 0.3s ease;
}

.aim-control-group select:focus,
.aim-control-group input:focus {
    outline: none;
    border-color: var(--aim-primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
    transform: translateY(-2px);
}

/* Advanced Settings */
.aim-advanced-settings {
    background: var(--aim-bg-primary);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    border-left: 4px solid var(--aim-purple);
}

.aim-advanced-toggle {
    background: none;
    border: none;
    color: var(--aim-purple);
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.aim-advanced-toggle:hover {
    transform: translateX(5px);
}

.aim-advanced-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    animation: fadeInUp 0.5s ease-out;
}

/* Action Buttons */
.aim-action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.aim-btn {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.aim-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.aim-btn:hover::before {
    left: 100%;
}

.aim-btn-primary {
    background: linear-gradient(135deg, var(--aim-primary), var(--aim-secondary));
    color: white;
}

.aim-btn-success {
    background: linear-gradient(135deg, var(--aim-success), var(--aim-info));
    color: white;
}

.aim-btn-danger {
    background: linear-gradient(135deg, var(--aim-danger), var(--aim-warning));
    color: white;
}

.aim-btn-warning {
    background: linear-gradient(135deg, var(--aim-warning), #f3722c);
    color: white;
}

.aim-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.aim-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Export Options */
.aim-export-options {
    background: var(--aim-bg-secondary);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 8px 25px var(--aim-shadow);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.aim-export-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.aim-export-btn {
    background: var(--aim-bg-primary);
    border: 2px solid var(--aim-border);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-weight: 600;
}

.aim-export-btn:hover {
    border-color: var(--aim-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--aim-shadow);
}

.aim-export-btn.active {
    border-color: var(--aim-primary);
    background: var(--aim-primary);
    color: white;
}

/* Result Section */
.aim-result-section {
    text-align: center;
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

#aimCanvas {
    max-width: 100%;
    border: 2px solid var(--aim-border);
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--aim-shadow);
    background: var(--aim-bg-primary);
    transition: all 0.3s ease;
}

#aimCanvas:hover {
    box-shadow: 0 12px 35px var(--aim-shadow);
    transform: scale(1.01);
}

/* Footer */
.aim-footer {
    text-align: center;
    color: white;
    padding: 20px;
    opacity: 0.8;
    animation: fadeInUp 1s ease-out 1s both;
}

/* Responsive Design */
@media (max-width: 768px) {
    .aim-upload-section {
        grid-template-columns: 1fr;
    }
    
    .aim-control-grid {
        grid-template-columns: 1fr;
    }
    
    .aim-action-buttons {
        flex-direction: column;
    }
    
    .aim-title {
        font-size: 2rem;
    }
    
    .aim-export-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Loading Animation */
.aim-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
}

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

/* Notification Styles */
.aim-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--aim-success);
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideInRight 0.3s ease;
}

.aim-notification.error {
    background: var(--aim-danger);
}

.aim-notification.warning {
    background: var(--aim-warning);
}

.aim-notification.info {
    background: var(--aim-info);
}

/* Custom Range Slider */
.aim-range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--aim-border);
    outline: none;
}

.aim-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--aim-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.aim-range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(67, 97, 238, 0.1);
}

.aim-range-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--aim-primary);
    cursor: pointer;
    border: none;
}