/**
 * KP Hanja Display Styles
 * Retro/Neobrutalist aesthetic matching Korean Patch design system
 * v2.0: Dual-side drawers, file browser layout, improved minimal card
 */

/* ============================================
   LAYOUT 1: CARD WITH DUAL-SIDE DRAWERS
   ============================================ */

.kp-hanja-card {
    position: relative;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 4px solid black;
    box-shadow: 8px 8px 0 black;
    margin: 2rem auto;
    max-width: 900px;
    width: 100%;
    overflow: hidden;
    display: flex;
    min-height: 600px;
    max-height: 80vh;
    border-radius: 8px;
}

html.dark .kp-hanja-card {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 8px 8px 0 var(--kp-border-primary, #4DB6AC);
}

/* Main Content Area - Shifts when drawers open */
.kp-hanja-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    transition: all 0.3s ease;
    overflow-y: auto;
    min-width: 0;
    margin-left: 0;
    margin-right: 0;
}

/* Left drawer pushes content RIGHT */
.kp-hanja-card.has-left-drawer .kp-hanja-main {
    margin-left: 40%;
    flex: 0 0 60%;
}

/* Right drawer pushes content LEFT */
.kp-hanja-card.has-right-drawer .kp-hanja-main {
    margin-right: 40%;
    flex: 0 0 60%;
}

/* Character Display Section */
.kp-hanja-character-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    position: relative;
}

.kp-hanja-character-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.kp-hanja-character {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: clamp(80px, 12vw, 140px);
    font-weight: 700;
    color: var(--kp-text-primary, #000);
    line-height: 1;
    text-align: center;
    padding: 1rem 0;
}

html.dark .kp-hanja-character {
    color: var(--kp-text-primary, #E8E8E8);
}

/* Stroke Order Display */
.kp-hanja-stroke-order {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
}

.hanzi-writer-canvas {
    width: 100%;
    height: 250px;
}

/* Stroke Order Toggle */
.kp-hanja-toggle-stroke {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--celadon-green, #4DB6AC);
    color: white;
    border: 3px solid black;
    box-shadow: 3px 3px 0 black;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kp-hanja-toggle-stroke:hover {
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 black;
}

.kp-hanja-toggle-stroke:active {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0 black;
}

html.dark .kp-hanja-toggle-stroke {
    border-color: var(--celadon-green, #4DB6AC);
    box-shadow: 3px 3px 0 var(--celadon-green, #4DB6AC);
}

html.dark .kp-hanja-toggle-stroke:hover {
    box-shadow: 4px 4px 0 var(--celadon-green, #4DB6AC);
}

/* Hun/Eum Boxes */
.kp-hanja-hun-eum {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.kp-hanja-hun-display,
.kp-hanja-eum-display {
    background: var(--kp-surface-secondary, #F5F5F5);
    border: 3px solid black;
    box-shadow: 4px 4px 0 black;
    padding: 1rem 1.5rem;
    min-width: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

html.dark .kp-hanja-hun-display,
html.dark .kp-hanja-eum-display {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 4px 4px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-hun-label,
.kp-eum-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--kp-text-secondary, #666);
    background: var(--dispatch-yellow, #FFC107);
    padding: 0.25rem 0.75rem;
    border: 2px solid black;
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
}

html.dark .kp-hun-label,
html.dark .kp-eum-label {
    border-color: var(--dispatch-yellow, #FFC107);
    color: #000;
}

.kp-hun-kr,
.kp-hun-en,
.kp-eum-value {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--kp-text-primary, #000);
    text-align: center;
}

html.dark .kp-hun-kr,
html.dark .kp-hun-en,
html.dark .kp-eum-value {
    color: var(--kp-text-primary, #E8E8E8);
}

/* Hun Toggle Button */
.kp-hanja-toggle-hun {
    padding: 0.5rem;
    background: var(--dispatch-yellow, #FFC107);
    border: 3px solid black;
    box-shadow: 3px 3px 0 black;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.kp-hanja-toggle-hun:hover {
    transform: scale(1.05) translate(-1px, -1px);
    box-shadow: 4px 4px 0 black;
}

html.dark .kp-hanja-toggle-hun {
    border-color: var(--dispatch-yellow, #FFC107);
    box-shadow: 3px 3px 0 var(--dispatch-yellow, #FFC107);
}

html.dark .kp-hanja-toggle-hun:hover {
    box-shadow: 4px 4px 0 var(--dispatch-yellow, #FFC107);
}

/* Bottom Badges */
.kp-hanja-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding-top: 1rem;
    border-top: 3px solid var(--kp-border-primary, #ddd);
}

html.dark .kp-hanja-badges {
    border-top-color: var(--kp-border-primary, #444);
}

.kp-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    border: 2px solid black;
    background: var(--kp-surface-secondary, #F5F5F5);
    cursor: pointer;
    transition: all 0.15s ease;
}

.kp-badge:hover {
    transform: translateY(-2px);
}

html.dark .kp-badge {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-badge-context {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

.kp-badge-level {
    background: var(--dispatch-yellow, #FFC107);
    color: black;
}

.kp-badge-real-life {
    background: var(--dancheong-coral, #F4A261);
    color: white;
}

.kp-badge-lesson {
    background: var(--kp-surface-secondary, #E8E8E8);
    color: black;
}

/* ============================================
   DUAL-SIDE DRAWER SYSTEM - INDEPENDENT BLOCKS
   ============================================ */

/* Tab Buttons - Left Side */
.kp-tabs-left {
    position: absolute;
    left: 0;
    top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 10;
}

/* Tab Buttons - Right Side */
.kp-tabs-right {
    position: absolute;
    right: 0;
    top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 10;
}

.kp-hanja-tab-btn {
    width: 72px;
    height: 72px;
    background: var(--kp-surface-secondary, #F5F5F5);
    border: 3px solid black;
    box-shadow: 3px 3px 0 black;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem;
    font-size: 1.5rem;
    color: var(--kp-text-primary, #000);
    position: relative;
}

/* Left tabs have no left border */
.kp-tabs-left .kp-hanja-tab-btn {
    border-left: none;
    box-shadow: 3px 3px 0 black;
}

/* Right tabs have no right border */
.kp-tabs-right .kp-hanja-tab-btn {
    border-right: none;
    box-shadow: -3px 3px 0 black;
}

.kp-hanja-tab-btn span {
    font-size: 0.7rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.2;
    letter-spacing: 0.5px;
}

/* Color variations for visual interest */
.kp-hanja-tab-btn:nth-child(1) {
    background: #FFE5E5;
}

.kp-hanja-tab-btn:nth-child(2) {
    background: #E5F5FF;
}

.kp-hanja-tab-btn:nth-child(3) {
    background: #FFF5E5;
}

html.dark .kp-hanja-tab-btn:nth-child(1) {
    background: #3a2a2a;
}

html.dark .kp-hanja-tab-btn:nth-child(2) {
    background: #2a2a3a;
}

html.dark .kp-hanja-tab-btn:nth-child(3) {
    background: #3a3a2a;
}

/* Left tab hover and active */
.kp-tabs-left .kp-hanja-tab-btn:hover {
    background: var(--celadon-green, #4DB6AC);
    color: white;
    transform: translateX(5px);
    box-shadow: 5px 5px 0 black;
}

.kp-tabs-left .kp-hanja-tab-btn.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
    transform: translateX(5px);
    box-shadow: 5px 5px 0 var(--dancheong-coral, #F4A261);
}

/* Right tab hover and active */
.kp-tabs-right .kp-hanja-tab-btn:hover {
    background: var(--dispatch-yellow, #FFC107);
    color: black;
    transform: translateX(-5px);
    box-shadow: -5px 5px 0 black;
}

.kp-tabs-right .kp-hanja-tab-btn.active {
    background: var(--dispatch-yellow, #FFC107);
    color: black;
    transform: translateX(-5px);
    box-shadow: -5px 5px 0 var(--dancheong-red, #E63946);
}

html.dark .kp-hanja-tab-btn {
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

html.dark .kp-tabs-left .kp-hanja-tab-btn:hover,
html.dark .kp-tabs-left .kp-hanja-tab-btn.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

html.dark .kp-tabs-right .kp-hanja-tab-btn:hover,
html.dark .kp-tabs-right .kp-hanja-tab-btn.active {
    background: var(--dispatch-yellow, #FFC107);
    color: black;
}

/* Drawer Containers - Independent Blocks */
.kp-hanja-drawer {
    position: absolute;
    width: 40%;
    background: transparent;
    transition: all 0.3s ease;
    overflow: visible;
    z-index: 5;
    pointer-events: none;
}

/* Left Drawer - stacks panels vertically */
.kp-drawer-left {
    left: 0;
    top: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.kp-drawer-left.has-panels {
    pointer-events: auto;
}

/* Right Drawer - stacks panels vertically */
.kp-drawer-right {
    right: 0;
    top: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.kp-drawer-right.has-panels {
    pointer-events: auto;
}

/* Drawer Content - Individual Panels */
.kp-hanja-panel {
    padding: 1.5rem 1.25rem;
    overflow: hidden;
    background: var(--kp-surface-secondary, #F9F9F9);
    border: 3px solid black;
    box-shadow: 4px 4px 0 black;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
    opacity: 0;
    flex-shrink: 0;
    max-height: 0;
    margin-bottom: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Panel in left drawer */
.kp-drawer-left .kp-hanja-panel {
    border-left: none;
}

.kp-drawer-left .kp-hanja-panel.active {
    opacity: 1;
    max-height: 500px;
    margin-bottom: 0.5rem;
    visibility: visible;
    pointer-events: auto;
}

/* Panel in right drawer */
.kp-drawer-right .kp-hanja-panel {
    border-right: none;
}

.kp-drawer-right .kp-hanja-panel.active {
    opacity: 1;
    max-height: 500px;
    margin-bottom: 0.5rem;
    visibility: visible;
    pointer-events: auto;
}

html.dark .kp-hanja-panel {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 4px 4px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-hanja-panel h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--kp-text-primary, #000);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--kp-border-primary, #ddd);
}

html.dark .kp-hanja-panel h4 {
    color: var(--kp-text-primary, #E8E8E8);
    border-bottom-color: var(--kp-border-primary, #444);
}

/* Drawer Close Button - Removed (panels are independent) */

/* ============================================
   DRAWER CONTENT STYLING
   ============================================ */

/* Radicals List */
.kp-radicals-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.kp-radicals-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kp-radical-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    transition: all 0.15s ease;
}

.kp-radical-item:hover {
    transform: translateX(-3px);
    box-shadow: 3px 3px 0 black;
}

html.dark .kp-radical-item {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

html.dark .kp-radical-item:hover {
    box-shadow: 3px 3px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-radical-char {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--kp-text-primary, #000);
    min-width: 40px;
    text-align: center;
}

html.dark .kp-radical-char {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-radical-meaning {
    font-size: 0.9rem;
    color: var(--kp-text-secondary, #666);
}

html.dark .kp-radical-meaning {
    color: var(--kp-text-secondary, #999);
}

.kp-hanja-link {
    text-decoration: none;
    color: inherit;
    transition: color 0.15s ease;
}

.kp-hanja-link:hover {
    color: var(--celadon-green, #4DB6AC);
}

/* Class/Type Content */
.kp-class-content p {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.kp-class-content strong {
    color: var(--celadon-green, #4DB6AC);
}

/* Strokes Content */
.kp-strokes-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.kp-stroke-count {
    font-size: 2rem;
    font-weight: 700;
    color: var(--kp-text-primary, #000);
    text-align: center;
    padding: 1rem;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
}

html.dark .kp-stroke-count {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

/* Description Content */
.kp-description-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.kp-desc-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.kp-desc-toggle-btn {
    flex: 1;
    padding: 0.5rem;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.15s ease;
    text-transform: uppercase;
}

.kp-desc-toggle-btn.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

html.dark .kp-desc-toggle-btn {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

html.dark .kp-desc-toggle-btn.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

.kp-description-text {
    line-height: 1.6;
    color: var(--kp-text-primary, #000);
}

html.dark .kp-description-text {
    color: var(--kp-text-primary, #E8E8E8);
}

/* Vocabulary Content */
.kp-vocabulary-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kp-vocabulary-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kp-vocab-word {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.15s ease;
}

.kp-vocab-word:hover {
    transform: translateX(-3px);
    box-shadow: 3px 3px 0 black;
}

html.dark .kp-vocab-word {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

html.dark .kp-vocab-word:hover {
    box-shadow: 3px 3px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-vocab-char {
    color: var(--celadon-green, #4DB6AC);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.15s ease;
}

.kp-vocab-char:hover {
    color: var(--dispatch-yellow, #FFC107);
}

/* ============================================
   MODAL (for Lesson Content)
   ============================================ */

.kp-hanja-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.kp-modal-content {
    background: var(--kp-surface-primary, #FFFFFF);
    border: 4px solid black;
    box-shadow: 12px 12px 0 black;
    max-width: 700px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    padding: 2rem;
}

html.dark .kp-modal-content {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 12px 12px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--dancheong-red, #E63946);
    color: white;
    border: 3px solid black;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.kp-modal-close:hover {
    transform: scale(1.1);
}

html.dark .kp-modal-close {
    border-color: var(--dancheong-red, #E63946);
}

.kp-modal-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--kp-text-primary, #000);
    text-transform: uppercase;
    letter-spacing: 1px;
}

html.dark .kp-modal-content h3 {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-modal-body {
    line-height: 1.6;
    color: var(--kp-text-primary, #000);
}

html.dark .kp-modal-body {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-lesson-section {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--kp-surface-secondary, #F9F9F9);
    border: 2px solid black;
}

html.dark .kp-lesson-section {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

.kp-lesson-context-tag {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--celadon-green, #4DB6AC);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    letter-spacing: 0.5px;
}

.kp-lesson-text {
    line-height: 1.6;
}

/* ============================================
   LAYOUT 2: FILE BROWSER
   ============================================ */

.kp-hanja-browser {
    background: var(--kp-surface-primary, #FFFFFF);
    border: 4px solid black;
    box-shadow: 8px 8px 0 black;
    margin: 2rem auto;
    max-width: 900px;
    overflow: hidden;
    border-radius: 8px;
}

html.dark .kp-hanja-browser {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 8px 8px 0 var(--kp-border-primary, #4DB6AC);
}

/* File Browser Title Bar */
.file-browser-titlebar {
    background: var(--kp-surface-secondary, #E8E8E8);
    border-bottom: 4px solid black;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

html.dark .file-browser-titlebar {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-bottom-color: var(--kp-border-primary, #4DB6AC);
}

.file-browser-icon {
    font-size: 1.25rem;
    color: var(--kp-text-primary, #000);
}

html.dark .file-browser-icon {
    color: var(--kp-text-primary, #E8E8E8);
}

.file-browser-title {
    flex: 1;
    font-weight: 600;
    color: var(--kp-text-primary, #000);
}

html.dark .file-browser-title {
    color: var(--kp-text-primary, #E8E8E8);
}

.file-browser-controls {
    display: flex;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 0.9rem;
}

.file-browser-controls span {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    cursor: pointer;
    transition: all 0.15s ease;
}

.file-browser-controls span:hover {
    transform: scale(1.1);
}

html.dark .file-browser-controls span {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

/* File Browser Toolbar */
.file-browser-toolbar {
    background: var(--kp-surface-secondary, #F5F5F5);
    border-bottom: 3px solid black;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

html.dark .file-browser-toolbar {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-bottom-color: var(--kp-border-primary, #4DB6AC);
}

.file-toolbar-btn {
    width: 32px;
    height: 32px;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.file-toolbar-btn:hover {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

html.dark .file-toolbar-btn {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

.file-path-bar {
    flex: 1;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    padding: 0.375rem 0.75rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

html.dark .file-path-bar {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    color: var(--kp-text-primary, #E8E8E8);
}

/* File Browser Content */
.file-browser-content {
    display: flex;
    min-height: 500px;
    max-height: 60vh;
}

/* File Sidebar - "Apps" */
.file-sidebar {
    width: 200px;
    background: var(--kp-surface-secondary, #F5F5F5);
    border-right: 3px solid black;
    padding: 1rem 0.5rem;
    overflow-y: auto;
}

html.dark .file-sidebar {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-right-color: var(--kp-border-primary, #4DB6AC);
}

.file-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    margin-bottom: 0.25rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.15s ease;
    font-size: 0.9rem;
    font-weight: 600;
}

.file-sidebar-item:hover {
    background: var(--kp-surface-primary, #FFFFFF);
    border-color: black;
}

.file-sidebar-item.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
    border-color: black;
}

html.dark .file-sidebar-item {
    color: var(--kp-text-primary, #E8E8E8);
}

html.dark .file-sidebar-item:hover {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

html.dark .file-sidebar-item.active {
    background: var(--celadon-green, #4DB6AC);
    color: white;
    border-color: var(--kp-border-primary, #4DB6AC);
}

.file-icon {
    font-size: 1.1rem;
}

/* File Content Area - "Windows" */
.file-content-area {
    flex: 1;
    background: var(--kp-surface-primary, #FFFFFF);
    overflow-y: auto;
    position: relative;
}

html.dark .file-content-area {
    background: var(--kp-surface-primary, #1a1a1a);
}

.file-window {
    display: none;
    height: 100%;
}

.file-window.active {
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease;
    height: 100%;
}

/* Window Titlebar - Compact */
.file-window-titlebar {
    background: var(--celadon-green, #4DB6AC);
    color: white;
    padding: 0.5rem 1rem;
    font-weight: 700;
    font-size: 0.85rem;
    border-bottom: 3px solid black;
    flex-shrink: 0;
}

html.dark .file-window-titlebar {
    border-bottom-color: var(--kp-border-primary, #4DB6AC);
}

/* Window Content - Fills Remaining Space */
.file-window-content {
    flex: 1;
    padding: 2rem;
    background: var(--kp-surface-primary, #FFFFFF);
    overflow-y: auto;
}

html.dark .file-window-content {
    background: var(--kp-surface-primary, #1a1a1a);
}

.file-window-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--kp-text-primary, #000);
}

html.dark .file-window-content h4 {
    color: var(--kp-text-primary, #E8E8E8);
}

.file-window-content h5 {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 1rem 0 0.5rem;
    color: var(--celadon-green, #4DB6AC);
}

/* Browser Character Display */
.browser-character {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: clamp(60px, 8vw, 100px);
    font-weight: 700;
    text-align: center;
    color: var(--kp-text-primary, #000);
    margin-bottom: 1.5rem;
}

html.dark .browser-character {
    color: var(--kp-text-primary, #E8E8E8);
}

/* Browser Hun/Eum Boxes */
.browser-hun-eum-boxes {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.browser-info-box {
    background: var(--kp-surface-primary, #FFFFFF);
    border: 3px solid black;
    box-shadow: 4px 4px 0 black;
    padding: 1rem 1.5rem;
    min-width: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

html.dark .browser-info-box {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 4px 4px 0 var(--kp-border-primary, #4DB6AC);
}

.browser-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #000;
    background: var(--dispatch-yellow, #FFC107);
    padding: 0.25rem 0.75rem;
    border: 2px solid black;
    position: absolute;
    top: -12px;
}

html.dark .browser-label {
    border-color: var(--dispatch-yellow, #FFC107);
}

.browser-value {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--kp-text-primary, #000);
}

html.dark .browser-value {
    color: var(--kp-text-primary, #E8E8E8);
}

.browser-value-en {
    font-size: 0.9rem;
    color: var(--kp-text-secondary, #666);
}

html.dark .browser-value-en {
    color: var(--kp-text-secondary, #999);
}

.browser-info-row {
    padding: 0.75rem;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 2px solid black;
    margin-bottom: 0.5rem;
}

html.dark .browser-info-row {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

.browser-desc-section {
    margin-bottom: 1.5rem;
}

/* File Browser Status Bar */
.file-browser-statusbar {
    background: var(--kp-surface-secondary, #E8E8E8);
    border-top: 4px solid black;
    padding: 0.75rem 1rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
}

html.dark .file-browser-statusbar {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-top-color: var(--kp-border-primary, #4DB6AC);
}

.browser-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid black;
    background: var(--kp-surface-primary, #FFFFFF);
}

html.dark .browser-status-badge {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

.browser-status-badge.context-badge {
    background: var(--celadon-green, #4DB6AC);
    color: white;
}

.browser-status-badge.level-badge {
    background: var(--dispatch-yellow, #FFC107);
    color: black;
}

.browser-status-badge.reallife-badge {
    background: var(--dancheong-coral, #F4A261);
    color: white;
}

/* Browser Buttons */
.kp-btn {
    padding: 0.75rem 1.5rem;
    background: var(--celadon-green, #4DB6AC);
    color: white;
    border: 3px solid black;
    box-shadow: 4px 4px 0 black;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.kp-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 black;
}

.kp-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 black;
}

html.dark .kp-btn {
    border-color: var(--celadon-green, #4DB6AC);
    box-shadow: 4px 4px 0 var(--celadon-green, #4DB6AC);
}

html.dark .kp-btn:hover {
    box-shadow: 6px 6px 0 var(--celadon-green, #4DB6AC);
}

/* ============================================
   LAYOUT 3: MINIMAL FLIP CARD
   ============================================ */

.kp-hanja-minimal {
    perspective: 1000px;
    width: 100%;
    max-width: 400px;
    height: 500px;
    margin: 2rem auto;
    cursor: pointer;
}

.kp-minimal-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 8px;
}

.kp-hanja-minimal.flipped .kp-minimal-inner {
    transform: rotateY(180deg);
}

.kp-minimal-front,
.kp-minimal-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: var(--kp-surface-primary, #FFFFFF);
    border: 4px solid black;
    box-shadow: 8px 8px 0 black;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    overflow: hidden;
    border-radius: 8px;
}

html.dark .kp-minimal-front,
html.dark .kp-minimal-back {
    background: var(--kp-surface-primary, #1a1a1a);
    border-color: var(--kp-border-primary, #4DB6AC);
    box-shadow: 8px 8px 0 var(--kp-border-primary, #4DB6AC);
}

.kp-minimal-back {
    transform: rotateY(180deg);
}

.kp-minimal-character {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: clamp(100px, 15vw, 150px);
    font-weight: 700;
    color: var(--kp-text-primary, #000);
    line-height: 1;
}

html.dark .kp-minimal-character {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-minimal-hun-eum {
    display: flex;
    gap: 2rem;
}

.kp-minimal-hun,
.kp-minimal-eum {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.kp-value {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--kp-text-primary, #000);
}

html.dark .kp-value {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--kp-text-secondary, #666);
    letter-spacing: 1px;
}

html.dark .kp-label {
    color: var(--kp-text-secondary, #999);
}

.kp-minimal-badge {
    padding: 0.5rem 1rem;
    background: var(--dispatch-yellow, #FFC107);
    border: 2px solid black;
    font-size: 0.85rem;
    font-weight: 700;
}

html.dark .kp-minimal-badge {
    border-color: var(--dispatch-yellow, #FFC107);
}

.kp-minimal-hint {
    font-size: 0.8rem;
    color: var(--kp-text-secondary, #999);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: auto;
}

/* Back Side Specific */
.kp-minimal-back {
    position: relative;
}

.kp-minimal-back h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--kp-text-primary, #000);
    margin-bottom: 1rem;
}

html.dark .kp-minimal-back h4 {
    color: var(--kp-text-primary, #E8E8E8);
}

/* Language Toggle on Back */
.kp-minimal-lang-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--dispatch-yellow, #FFC107);
    border: 3px solid black;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.15s ease;
    z-index: 10;
}

.kp-minimal-lang-toggle:hover {
    transform: scale(1.1) rotate(90deg);
}

html.dark .kp-minimal-lang-toggle {
    border-color: var(--dispatch-yellow, #FFC107);
}

/* Description Container - Fixed Height with Scrolling */
.kp-minimal-desc-container {
    flex: 1;
    width: 100%;
    overflow-y: auto;
    padding: 1rem;
    background: var(--kp-surface-secondary, #F9F9F9);
    border: 2px solid black;
    max-height: 280px;
}

html.dark .kp-minimal-desc-container {
    background: var(--kp-surface-secondary, #2a2a2a);
    border-color: var(--kp-border-primary, #4DB6AC);
}

.kp-minimal-desc {
    line-height: 1.6;
    color: var(--kp-text-primary, #000);
    text-align: left;
    font-size: 0.9rem;
}

html.dark .kp-minimal-desc {
    color: var(--kp-text-primary, #E8E8E8);
}

.kp-minimal-desc-en {
    font-style: italic;
    color: var(--kp-text-secondary, #666);
}

html.dark .kp-minimal-desc-en {
    color: var(--kp-text-secondary, #999);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    /* Card Layout */
    .kp-hanja-card {
        flex-direction: column;
        min-height: auto;
        max-height: none;
    }
    
    .kp-hanja-card.has-left-drawer .kp-hanja-main,
    .kp-hanja-card.has-right-drawer .kp-hanja-main {
        flex: 1;
    }
    
    .kp-tabs-left,
    .kp-tabs-right {
        position: static;
        transform: none;
        flex-direction: row;
        width: 100%;
        border-top: 4px solid black;
        padding: 0.5rem;
        gap: 0.5rem;
        justify-content: center;
        background: var(--kp-surface-secondary, #F5F5F5);
    }
    
    html.dark .kp-tabs-left,
    html.dark .kp-tabs-right {
        border-top-color: var(--kp-border-primary, #4DB6AC);
        background: var(--kp-surface-secondary, #2a2a2a);
    }
    
    .kp-tabs-left .kp-hanja-tab-btn,
    .kp-tabs-right .kp-hanja-tab-btn {
        border: 3px solid black;
        border-left: 3px solid black;
        border-right: 3px solid black;
    }
    
    html.dark .kp-hanja-tab-btn {
        border-color: var(--kp-border-primary, #4DB6AC);
    }
    
    .kp-drawer-left,
    .kp-drawer-right {
        position: static;
        width: 100%;
        height: auto;
        transform: none;
        border-left: none;
        border-right: none;
        border-top: 4px solid black;
        display: none;
    }
    
    .kp-drawer-left.open,
    .kp-drawer-right.open {
        display: block;
    }
    
    html.dark .kp-drawer-left,
    html.dark .kp-drawer-right {
        border-top-color: var(--kp-border-primary, #4DB6AC);
    }
    
    /* Browser Layout */
    .file-browser-content {
        flex-direction: column;
        max-height: none;
    }
    
    .file-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 3px solid black;
    }
    
    html.dark .file-sidebar {
        border-bottom-color: var(--kp-border-primary, #4DB6AC);
    }
    
    /* Character sizes */
    .kp-hanja-character {
        font-size: clamp(60px, 15vw, 100px);
    }
    
    .browser-character {
        font-size: clamp(50px, 12vw, 80px);
    }
}

@media (max-width: 480px) {
    .kp-hanja-card {
        border-width: 3px;
        box-shadow: 4px 4px 0 black;
    }
    
    .kp-hanja-main {
        padding: 1.5rem;
    }
    
    .kp-hanja-hun-display,
    .kp-hanja-eum-display {
        padding: 0.75rem 1rem;
        min-width: 100px;
    }
    
    .kp-hun-kr,
    .kp-hun-en,
    .kp-eum-value {
        font-size: 1.25rem;
    }
    
    .kp-modal-content {
        padding: 1.5rem;
    }
    
    .kp-minimal-character {
        font-size: clamp(70px, 20vw, 100px);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}