/* ========================================
   Evalanche Header Editor - Styles
   Extends ../assets/css/shared.css
   ======================================== */

:root {
    --color-evalanche: #e11d48;
    --color-evalanche-hover: #f43f5e;
    --sidebar-width: 300px;
}

/* ========================================
   App Layout
   ======================================== */

body {
    overflow: hidden;
}

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

/* ========================================
   Sidebar
   ======================================== */

.sidebar {
    width: var(--sidebar-width);
    min-width: 300px;
    background: var(--color-bg-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent-light);
    margin: 0;
}

/* Panels */
.panel {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.panel h2 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

/* Control Groups */
.control-group {
    margin-bottom: 12px;
}

.control-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.control-group label span {
    color: var(--color-accent);
    font-weight: 600;
}

/* Slider with Input */
.slider-with-input {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-with-input input[type="range"] {
    flex: 1;
}

.slider-with-input input[type="number"] {
    width: 65px;
    padding: 6px 8px;
    text-align: center;
}

.slider-with-input .unit {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    min-width: 20px;
}

/* Checkbox Group */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent);
}

.checkbox-group label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

/* Individual Radius */
.individual-radius {
    margin-top: 12px;
}

.corner-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.corner-input {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-bg-elevated);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

.corner-input label {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.corner-input input {
    width: 50px;
    padding: 4px 8px;
    background: var(--color-bg-base);
    text-align: center;
}

/* Radio Group */
.radio-group {
    display: flex;
    gap: 16px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.radio-label input[type="radio"] {
    accent-color: var(--color-accent);
}

.radio-label span {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Color Picker */
#color-picker-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    padding: 8px 12px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
}

#bg-color {
    width: 40px;
    height: 32px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#color-hex {
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Size Inputs */
.size-inputs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.size-input {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-bg-elevated);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
}

.size-input label {
    font-size: 0.813rem;
    color: var(--color-text-secondary);
    min-width: 45px;
}

.size-input input {
    width: 60px;
    padding: 4px 6px;
    background: var(--color-bg-base);
    text-align: center;
}

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

.hint {
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ========================================
   Buttons (extends shared.css .btn)
   ======================================== */

.btn {
    width: 100%;
}

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

.btn-evalanche:hover:not(:disabled) {
    background: var(--color-evalanche-hover);
}

.icon {
    font-size: 1.1rem;
}

/* Actions Panel */
.panel.actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ========================================
   Layers List
   ======================================== */

.layers-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

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

.layer-item.selected {
    border: 1px solid var(--color-accent);
}

.layer-thumb {
    width: 40px;
    height: 30px;
    object-fit: cover;
    border-radius: 4px;
    background: var(--color-bg-base);
}

.layer-name {
    flex: 1;
    font-size: 0.813rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-delete {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.layer-delete:hover {
    background: var(--color-evalanche);
    color: white;
}

/* ========================================
   Canvas Area
   ======================================== */

.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: var(--color-bg-base);
    position: relative;
}

.canvas-wrapper {
    position: relative;
}

.drop-zone {
    position: relative;
    background: transparent;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: visible;
}

#header-canvas {
    display: block;
    cursor: crosshair;
}

/* Drop Overlay */
.drop-overlay {
    position: absolute;
    inset: 0;
    background: rgba(59, 130, 246, 0.2);
    border: 3px dashed var(--color-accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.drop-zone.drag-over .drop-overlay {
    opacity: 1;
}

.drop-message {
    text-align: center;
    color: var(--color-accent);
}

.drop-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 8px;
}

.drop-message p {
    font-size: 1rem;
    font-weight: 500;
}

/* Canvas Info */
.canvas-info {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ========================================
   Modal Overrides
   ======================================== */

.modal-content {
    max-width: 450px;
}

.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: normal;
    color: var(--color-text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.upload-status {
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    text-align: center;
}

.upload-status.success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--color-success);
}

.upload-status.error {
    background: rgba(225, 29, 72, 0.2);
    color: var(--color-evalanche);
}

.upload-status.loading {
    background: rgba(59, 130, 246, 0.2);
    color: var(--color-accent);
}

/* Preview Container */
.preview-container {
    background: repeating-conic-gradient(var(--color-bg-elevated) 0% 25%,
            var(--color-bg-surface) 0% 50%) 50% / 12px 12px;
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 120px;
    max-height: 250px;
    overflow: hidden;
}

.preview-container img {
    max-width: 100%;
    max-height: 220px;
    border-radius: 0px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Select Input */
.form-group select option {
    background: var(--color-bg-surface);
    color: var(--color-text-primary);
}