/**
 * UTF-8 Character List Stylesheet
 * Dusk Blue Theme Integration for ITools Workbench
 */

/* ==========================================================================
   Layout & Framework Viewport
   ========================================================================== */

.itools-main:has(.utf8-workspace) {
    max-width: 100%;
    padding: 0;
    margin: 0;
}

.tool-workspace.utf8-workspace {
    display: flex;
    flex-direction: row;
    flex: 1;
    width: 100%;
    height: calc(100vh - 84px);
    background-color: var(--color-bg-base, #f5f5f7);
    overflow: hidden;
    position: relative;
}

/* ==========================================================================
   Navbar Controls (Header)
   ========================================================================== */

.utf8-navbar-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.utf8-search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.utf8-search-icon {
    position: absolute;
    left: 10px;
    color: var(--color-text-muted, #666666);
    pointer-events: none;
}

.utf8-search-input {
    height: 34px;
    width: 280px;
    padding: 0 28px 0 32px;
    font-size: 0.82rem;
    font-family: var(--font-sans);
    color: var(--color-text-primary, #1a1a1a);
    background-color: #ffffff;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: var(--border-radius-sm, 4px);
    transition: all 0.15s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.utf8-search-input:focus {
    outline: none;
    border-color: var(--color-primary-accent, #3d5a80);
    box-shadow: 0 0 0 2px rgba(61, 90, 128, 0.2);
    width: 320px;
}

.utf8-search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted, #666666);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 50%;
}

.utf8-search-clear:hover {
    color: var(--color-destructive, #ee6c4d);
    background-color: var(--color-neutral-shaded, rgba(0,0,0,0.05));
}

.utf8-dropdown-container {
    position: relative;
}

.utf8-nav-btn {
    height: 34px !important;
    padding: 0 12px !important;
    font-size: 0.82rem !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    background-color: #ffffff !important;
    border: 1px solid var(--color-border, #e5e7eb) !important;
    color: var(--color-text-primary, #1a1a1a) !important;
    border-radius: var(--border-radius-sm, 4px) !important;
    cursor: pointer;
    white-space: nowrap;
}

.utf8-nav-btn:hover {
    background-color: var(--color-neutral-shaded, rgba(26, 26, 26, 0.05)) !important;
    border-color: var(--color-primary-accent, #3d5a80) !important;
}

.module-navbar-actions #btn-toggle-density,
.utf8-navbar-controls #btn-toggle-density,
#btn-toggle-density.utf8-icon-btn {
    width: 34px !important;
    min-width: 34px !important;
    max-width: 34px !important;
    height: 34px !important;
    min-height: 34px !important;
    max-height: 34px !important;
    padding: 0 !important;
    padding-inline: 0 !important;
    padding-inline-start: 0 !important;
    padding-inline-end: 0 !important;
    padding-block: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    margin: 0 !important;
    margin-inline: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-sizing: border-box !important;
    flex-shrink: 0 !important;
    background-color: #ffffff !important;
    border: 1px solid var(--color-border, #e5e7eb) !important;
    border-radius: var(--border-radius-sm, 4px) !important;
    color: var(--color-text-primary, #1a1a1a) !important;
    cursor: pointer !important;
    line-height: 1 !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
    gap: 0 !important;
}

.module-navbar-actions #btn-toggle-density:hover,
.utf8-navbar-controls #btn-toggle-density:hover {
    background-color: var(--color-neutral-shaded, rgba(26, 26, 26, 0.05)) !important;
    border-color: var(--color-primary-accent, #3d5a80) !important;
}

.module-navbar-actions #btn-toggle-density:active,
.utf8-navbar-controls #btn-toggle-density:active {
    transform: scale(0.96);
}

.module-navbar-actions #btn-toggle-density svg,
.utf8-navbar-controls #btn-toggle-density svg,
#btn-toggle-density svg {
    width: 18px !important;
    height: 18px !important;
    min-width: 18px !important;
    min-height: 18px !important;
    max-width: 18px !important;
    max-height: 18px !important;
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
    flex-shrink: 0 !important;
}

.utf8-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 250px;
    background: #ffffff;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 6px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 4px;
}

.utf8-dropdown-menu .dropdown-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 7px 10px;
    font-size: 0.82rem;
    color: var(--color-text-primary, #1a1a1a);
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    gap: 14px;
    transition: background-color 0.1s ease;
}
    padding: 7px 10px;
    font-size: 0.82rem;
    color: var(--color-text-primary, #1a1a1a);
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.1s ease;
}

.utf8-dropdown-menu .dropdown-item:hover {
    background-color: var(--color-neutral-shaded, rgba(26, 26, 26, 0.05));
    color: var(--color-primary-accent, #3d5a80);
}

.utf8-dropdown-menu .dropdown-item.active {
    background-color: rgba(61, 90, 128, 0.1);
    color: var(--color-primary-accent, #3d5a80);
    font-weight: 600;
}

.utf8-menu-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: #f1f3f5;
    padding: 1px 5px;
    border-radius: 3px;
    color: var(--color-text-muted, #666666);
}

/* ==========================================================================
   Sidebar: Category Navigation
   ========================================================================== */

.utf8-sidebar {
    width: 260px;
    min-width: 260px;
    background-color: #ffffff;
    border-right: 1px solid var(--color-border, #e5e7eb);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.utf8-sidebar-header {
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border, #e5e7eb);
    background-color: #fafafa;
}

.utf8-sidebar-title {
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--color-text-muted, #666666);
}

.utf8-btn-link {
    background: none;
    border: none;
    font-size: 0.78rem;
    color: var(--color-primary-accent, #3d5a80);
    cursor: pointer;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
}

.utf8-btn-link:hover {
    text-decoration: underline;
    background-color: rgba(61, 90, 128, 0.08);
}

.utf8-category-nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.utf8-cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 8px 12px;
    border: none;
    border-radius: var(--border-radius-sm, 4px);
    background: transparent;
    color: var(--color-text-primary, #1a1a1a);
    font-size: 0.82rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.12s ease;
}

.utf8-cat-item:hover {
    background-color: var(--color-neutral-shaded, rgba(26, 26, 26, 0.04));
    color: var(--color-primary-accent, #3d5a80);
}

.utf8-cat-item.active {
    background-color: var(--color-primary-accent, #3d5a80);
    color: #ffffff;
    font-weight: 600;
}

.utf8-cat-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-right: 6px;
}

.utf8-cat-count {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    padding: 2px 6px;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.06);
    color: var(--color-text-muted, #666666);
}

.utf8-cat-item.active .utf8-cat-count {
    background-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.utf8-nav-group-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--color-text-muted, #71717a);
    padding: 14px 12px 4px 12px;
    user-select: none;
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */

.utf8-main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ==========================================================================
   Characters Grid & Card Views
   ========================================================================== */

.utf8-grid-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    position: relative;
}

.utf8-grid {
    display: grid;
    gap: 12px;
    width: 100%;
}

/* Density: Standard (Default) */
.utf8-grid.utf8-density-standard {
    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
}

/* Density: Compact */
.utf8-grid.utf8-density-compact {
    grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
    gap: 8px;
}

/* Density: Large */
.utf8-grid.utf8-density-large {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 16px;
}

/* Card Elements */
.utf8-card {
    position: relative;
    background-color: #ffffff;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: var(--border-radius-sm, 4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 6px 8px 6px;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
    user-select: none;
    content-visibility: auto;
    contain-intrinsic-size: 88px;
}

.utf8-card:hover {
    border-color: var(--color-primary-accent, #3d5a80);
    box-shadow: 0 4px 10px rgba(61, 90, 128, 0.12);
    transform: translateY(-2px);
}

.utf8-card:active {
    transform: scale(0.96);
}

.utf8-card-glyph {
    font-size: 1.85rem;
    line-height: 1.2;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI Emoji", "Noto Color Emoji", "Apple Color Emoji", sans-serif;
    color: var(--color-text-primary, #1a1a1a);
    transition: transform 0.1s ease;
}

.utf8-card:hover .utf8-card-glyph {
    transform: scale(1.1);
}

.utf8-density-compact .utf8-card-glyph {
    font-size: 1.35rem;
    margin-bottom: 3px;
}

.utf8-density-large .utf8-card-glyph {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.utf8-card-name {
    font-size: 0.7rem;
    color: var(--color-text-primary, #1a1a1a);
    text-align: center;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 0 4px;
    font-weight: 500;
}

.utf8-density-compact .utf8-card-name {
    display: none;
}

.utf8-card-code {
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--color-text-muted, #666666);
    margin-top: 2px;
}

.utf8-density-compact .utf8-card-code {
    font-size: 0.6rem;
    margin-top: 0;
}

/* Card Detail Info Button */
.utf8-card-info-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.04);
    border: none;
    color: var(--color-text-muted, #666666);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
    cursor: pointer;
}

.utf8-card:hover .utf8-card-info-btn {
    opacity: 1;
}

.utf8-card-info-btn:hover {
    background: var(--color-primary-accent, #3d5a80);
    color: #ffffff;
}

/* Copied feedback badge on card */
.utf8-card-copied-indicator {
    position: absolute;
    inset: 0;
    background-color: rgba(61, 90, 128, 0.92);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm, 4px);
    animation: utf8PopIn 0.15s ease;
}

@keyframes utf8PopIn {
    from { opacity: 0; transform: scale(0.85); }
    to { opacity: 1; transform: scale(1); }
}

/* ==========================================================================
   State Messages (Loading / Empty)
   ========================================================================== */

.utf8-state-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--color-text-muted, #666666);
    text-align: center;
}

.utf8-state-message h3 {
    font-size: 1.1rem;
    color: var(--color-text-primary, #1a1a1a);
    margin: 12px 0 6px 0;
}

.utf8-state-message p {
    font-size: 0.85rem;
    max-width: 400px;
}

.utf8-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--color-border, #e5e7eb);
    border-top-color: var(--color-primary-accent, #3d5a80);
    border-radius: 50%;
    animation: utf8Spin 0.7s linear infinite;
    margin-bottom: 12px;
}

@keyframes utf8Spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Modal Dialog (Inspector)
   ========================================================================== */

.utf8-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: utf8FadeIn 0.15s ease;
}

@keyframes utf8FadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.utf8-modal-dialog {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 540px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: utf8ScaleUp 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes utf8ScaleUp {
    from { transform: scale(0.94); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.utf8-modal-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border, #e5e7eb);
    background-color: #f8fafc;
}

.utf8-modal-char-preview {
    font-size: 3.2rem;
    line-height: 1;
    min-width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.utf8-modal-title-area {
    flex: 1;
    min-width: 0;
}

.utf8-modal-char-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary, #1a1a1a);
    margin: 0 0 4px 0;
    word-break: break-word;
}

.utf8-modal-char-cat {
    font-size: 0.78rem;
    color: var(--color-primary-accent, #3d5a80);
    font-weight: 600;
}

.utf8-modal-close-btn {
    background: none;
    border: none;
    font-size: 24px;
    line-height: 1;
    color: var(--color-text-muted, #666666);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.1s ease;
}

.utf8-modal-close-btn:hover {
    color: var(--color-destructive, #ee6c4d);
}

.utf8-modal-body {
    padding: 16px 20px;
    max-height: 65vh;
    overflow-y: auto;
}

.utf8-code-rows {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.utf8-code-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 10px;
    background: #f8fafc;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 4px;
}

.utf8-code-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-muted, #666666);
    width: 140px;
    min-width: 140px;
}

.utf8-code-val {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-text-primary, #1a1a1a);
    background: #ffffff;
    padding: 3px 8px;
    border-radius: 3px;
    border: 1px solid var(--color-border, #e5e7eb);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.utf8-btn-copy-val {
    height: 26px !important;
    padding: 0 10px !important;
    font-size: 0.75rem !important;
    cursor: pointer;
}

.utf8-modal-keywords-box {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border, #e5e7eb);
}

.utf8-keywords-title {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-muted, #666666);
    margin-bottom: 6px;
}

.utf8-modal-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.utf8-kw-tag {
    font-size: 0.72rem;
    background: var(--color-bg-base, #f5f5f7);
    color: var(--color-text-muted, #666666);
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid var(--color-border, #e5e7eb);
    cursor: pointer;
}

.utf8-kw-tag:hover {
    color: var(--color-primary-accent, #3d5a80);
    border-color: var(--color-primary-accent, #3d5a80);
}

.utf8-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background-color: #f8fafc;
    border-top: 1px solid var(--color-border, #e5e7eb);
}

.utf8-modal-hint {
    font-size: 0.74rem;
    color: var(--color-text-muted, #666666);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */

.utf8-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: #1e293b;
    color: #ffffff;
    padding: 10px 18px;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 6px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.utf8-toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive adjustments */
@media (max-width: 860px) {
    .utf8-sidebar {
        width: 200px;
        min-width: 200px;
    }
    .utf8-search-input {
        width: 180px;
    }
    .utf8-search-input:focus {
        width: 220px;
    }
}