/* ========================================
   AI Background Remover Premium Styling
   ======================================== */

.bg-remover-body {
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.bg-remover-main {
    flex: 1;
    display: flex;
    max-width: 100%;
    overflow: hidden;
    max-height: calc(100vh - 70px);
}

@media (max-width: 1024px) {
    .bg-remover-main {
        flex-direction: column;
        max-height: none;
    }
}

.tool-container {
    display: flex;
    flex: 1;
    width: 100%;
}

@media (max-width: 1024px) {
    .tool-container {
        flex-direction: column;
    }
}

/* Sidebar Controls */
.control-panel {
    width: 380px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 1024px) {
    .control-panel {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

.panel-section {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: var(--radius-md);
}

.panel-section h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-section h3 i {
    color: var(--accent);
}

.section-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}

/* Mode Selectors */
.mode-selector {
    display: flex;
    background: var(--bg-primary);
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    gap: 4px;
}

.mode-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.mode-btn.active {
    background: var(--accent);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Buttons */
.action-btn {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: white;
}

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

.run-btn {
    background: var(--grad-primary);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.run-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.download-btn {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.download-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
}

/* Progress bar */
.progress-container {
    margin-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: var(--accent);
    border-radius: 3px;
    animation: progAnim 1.5s infinite ease-in-out;
}

@keyframes progAnim {
    0% { left: -30%; }
    100% { left: 100%; }
}

.progress-text {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
    text-align: center;
}

/* Workspace Preview Area */
.preview-panel {
    flex: 1;
    background: var(--bg-tertiary);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-y: auto;
}

.upload-dropzone {
    width: 100%;
    max-width: 600px;
    background: var(--bg-card);
    border: 2px dashed #bbb;
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.upload-dropzone:hover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.02);
}

.upload-dropzone i {
    font-size: 48px;
    color: var(--text-muted);
}

.upload-dropzone h2 {
    font-size: 20px;
    font-weight: 800;
}

.upload-dropzone p {
    font-size: 13px;
    color: var(--text-secondary);
}

.browse-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

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

/* Workspace comparison screen */
.workspace-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    width: 100%;
    max-width: 1100px;
    height: 100%;
    align-items: center;
}

@media (max-width: 768px) {
    .workspace-area {
        grid-template-columns: 1fr;
    }
}

.preview-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
    min-height: 400px;
    max-height: 600px;
    box-shadow: var(--shadow-md);
}

.box-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    text-align: center;
}

.canvas-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: #f8fafc;
    border: 1px solid var(--border-color);
    position: relative;
}

body.dark-theme .canvas-wrapper {
    background: #1e293b;
}

/* Transparent checkered background grid */
.transparent-bg {
    background-image: 
        linear-gradient(45deg, #e2e8f0 25%, transparent 25%), 
        linear-gradient(-45deg, #e2e8f0 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #e2e8f0 75%), 
        linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

body.dark-theme .transparent-bg {
    background-image: 
        linear-gradient(45deg, #334155 25%, transparent 25%), 
        linear-gradient(-45deg, #334155 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #334155 75%), 
        linear-gradient(-45deg, transparent 75%, #334155 75%);
}

canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    cursor: crosshair;
}

/* API & Model Optimization Additions */
.status-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 20px;
    transition: var(--transition);
}

.status-local {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.status-cloud {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.1);
}

.input-group-remover {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group-remover label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

.remover-select {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
}

.remover-select:hover, .remover-select:focus {
    border-color: var(--accent);
}

.api-key-container {
    margin-bottom: 20px;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.api-key-container label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper input {
    width: 100%;
    padding: 10px 38px 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
    transition: var(--transition);
    outline: none;
}

.password-wrapper input:focus {
    border-color: var(--accent);
}

.password-wrapper i {
    position: absolute;
    right: 12px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
}

.password-wrapper i:hover {
    color: var(--text-primary);
}

.api-help {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}

.api-help a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
    transition: var(--transition);
}

.api-help a:hover {
    color: var(--text-primary);
}

.status-exhausted {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Custom Background Customizer Panel */
.bg-options {
    display: flex;
    gap: 6px;
    background: var(--bg-primary);
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.bg-opt-btn {
    flex: 1;
    padding: 8px 4px;
    font-size: 11px;
    font-weight: 700;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.bg-opt-btn.active {
    background: var(--accent);
    color: white;
}

.preset-colors {
    display: flex;
    gap: 6px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.preset-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.preset-dot:hover {
    transform: scale(1.15);
}

.preset-dot.active {
    border-color: var(--accent);
    transform: scale(1.1);
}

.gradient-presets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.gradient-preset-card {
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 9px;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    text-align: center;
    padding: 4px;
}

.gradient-preset-card:hover {
    transform: translateY(-2px);
}

.gradient-preset-card.active {
    border-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    transform: translateY(-2px);
}