/* ================================================================
   Side Panel — Reusable slide-out panel component
   Namespace: mc-side-panel  |  Uses design tokens from variables.css
   ================================================================ */

/* ----------------------------------------------------------------
   Backdrop
   ---------------------------------------------------------------- */
.mc-side-panel-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: var(--z-side-panel-backdrop, 350);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.mc-side-panel-backdrop.active {
    opacity: 1;
    visibility: visible;
}

/* ----------------------------------------------------------------
   Panel container
   ---------------------------------------------------------------- */
.mc-side-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 520px;
    max-width: 100vw;
    z-index: var(--z-side-panel, 360);
    background: var(--color-card-bg);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    border-left: 1px solid var(--color-border);
}

.mc-side-panel.active {
    transform: translateX(0);
}

/* Size variants */
.mc-side-panel--sm { width: 400px; }
.mc-side-panel--lg { width: 680px; }
.mc-side-panel--xl { width: 840px; }

@media (max-width: 767px) {
    .mc-side-panel,
    .mc-side-panel--sm,
    .mc-side-panel--lg,
    .mc-side-panel--xl {
        width: 100vw;
    }
}

/* ----------------------------------------------------------------
   Panel header
   ---------------------------------------------------------------- */
.mc-side-panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    background: var(--color-card-bg);
}

.mc-side-panel-header-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mc-side-panel-header-icon .material-symbols-rounded {
    font-size: 20px;
}

.mc-side-panel-header-icon--teal {
    background: var(--color-teal-light);
    color: var(--color-teal);
}

.mc-side-panel-header-icon--purple {
    background: var(--chart-6-bg);
    color: var(--chart-6);
}

.mc-side-panel-header-icon--amber {
    background: var(--chart-4-bg);
    color: var(--chart-4);
}

.mc-side-panel-title-group {
    flex: 1;
    min-width: 0;
}

.mc-side-panel-title {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    line-height: 1.3;
}

.mc-side-panel-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.mc-side-panel-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}

.mc-side-panel-close:hover {
    background: var(--color-hover-bg);
    color: var(--color-text);
}

.mc-side-panel-close .material-symbols-rounded {
    font-size: 20px;
}

/* ----------------------------------------------------------------
   Panel body (scrollable)
   ---------------------------------------------------------------- */
.mc-side-panel-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-5);
}

/* Sections within body */
.mc-side-panel-section {
    margin-bottom: var(--space-6);
}

.mc-side-panel-section:last-child {
    margin-bottom: 0;
}

.mc-side-panel-section-title {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-size: 11px;
}

.mc-side-panel-section-title .material-symbols-rounded {
    font-size: 16px;
    color: var(--color-teal);
}

/* ----------------------------------------------------------------
   Panel footer
   ---------------------------------------------------------------- */
.mc-side-panel-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
    background: var(--color-subtle-bg);
}

/* ----------------------------------------------------------------
   Template preview within side panel
   ---------------------------------------------------------------- */
.mc-side-panel-template-preview {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-subtle-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
}

.mc-side-panel-template-thumb {
    width: 100px;
    height: 120px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    flex-shrink: 0;
    position: relative;
}

.mc-side-panel-template-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.mc-side-panel-template-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-hover-bg);
    color: var(--color-text-disabled);
}

.mc-side-panel-template-thumb-placeholder .material-symbols-rounded {
    font-size: 32px;
}

.mc-side-panel-template-info {
    flex: 1;
    min-width: 0;
}

.mc-side-panel-template-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mc-side-panel-template-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

.mc-side-panel-template-actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.mc-side-panel-template-empty {
    padding: var(--space-6) var(--space-4);
    text-align: center;
    background: var(--color-subtle-bg);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-card);
}

.mc-side-panel-template-empty-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    background: var(--chart-6-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mc-side-panel-template-empty-icon .material-symbols-rounded {
    font-size: 24px;
    color: var(--chart-6);
}

.mc-side-panel-template-empty-title {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.mc-side-panel-template-empty-hint {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

/* ----------------------------------------------------------------
   Form grid within side panel
   ---------------------------------------------------------------- */
.mc-side-panel-form-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mc-side-panel-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

@media (max-width: 500px) {
    .mc-side-panel-form-row {
        grid-template-columns: 1fr;
    }
}

/* ----------------------------------------------------------------
   Status indicator
   ---------------------------------------------------------------- */
.mc-side-panel-status {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
}

.mc-side-panel-status--success {
    background: var(--chart-2-bg);
    color: var(--chart-2);
}

.mc-side-panel-status--warning {
    background: var(--chart-4-bg);
    color: var(--chart-4);
}

/* Body scroll lock */
body.mc-side-panel-open {
    overflow: hidden;
}