/* ============================================================
   Knowledge Compendium — Zelda: Tears of the Kingdom Theme
   A Purah Pad / Hyrule Compendium inspired UI for the
   math knowledge system. Mobile-first, self-contained.
   ============================================================ */

/* ===== 1. CSS Variables ===== */
.knowledge-page {
    --hyrule-bg: #0F0326;
    --hyrule-surface: #1a0f32;
    --hyrule-border: rgba(108, 92, 231, 0.15);
    --sheikah-blue: #8B7BF7;
    --sheikah-blue-dim: rgba(139, 123, 247, 0.2);
    --zonai-green: #47c78a;
    --zonai-green-dim: rgba(71, 199, 138, 0.25);
    --ancient-gold: #c8a850;
    --ancient-gold-dim: rgba(200, 168, 80, 0.25);
    --status-locked: #3a3a50;
    --status-discovered: var(--sheikah-blue);
    --status-mastered: var(--zonai-green);
    --status-perfected: var(--ancient-gold);
    --region-xiaojiujiu: #e06040;
    --region-times: #4a90d9;
    --region-divide: #a855f7;
    --region-mixed: #ec4899;
    --region-fraction: #f59e0b;
    --region-power: #10b981;
}


/* ===== 2. Page Container & Header ===== */
.knowledge-page {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: var(--hyrule-bg);
    color: #E8E0FF;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', sans-serif;
    animation: hyrule-slide-in 0.35s ease-out;
}

.knowledge-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: linear-gradient(180deg, var(--hyrule-bg) 60%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.knowledge-header .back-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
    background: var(--hyrule-surface);
    color: var(--sheikah-blue);
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.knowledge-header .back-btn:active {
    background: var(--sheikah-blue-dim);
    border-color: var(--sheikah-blue);
}

.knowledge-header h1 {
    flex: 1;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #f0f4f8;
}

.knowledge-mode-toggle {
    display: flex;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.knowledge-mode-toggle button {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: #A89DCE;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.knowledge-mode-toggle button.active {
    background: var(--sheikah-blue-dim);
    color: var(--sheikah-blue);
}


/* ===== 3. Region Map Grid ===== */
.region-map {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 8px 16px 24px;
}

.region-card {
    position: relative;
    display: grid;
    grid-template-columns: 52px 1fr 56px;
    grid-template-rows: auto auto auto;
    align-items: center;
    gap: 2px 12px;
    padding: 14px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 12px;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.25s, border-color 0.25s;
}

.region-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.04;
    pointer-events: none;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 18px, currentColor 18px, currentColor 19px),
        repeating-linear-gradient(90deg, transparent, transparent 18px, currentColor 18px, currentColor 19px);
    animation: sheikah-pulse 6s ease-in-out infinite;
}

.region-card:active {
    transform: scale(0.97);
}

.region-card .region-icon {
    grid-row: 1 / 3;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
}

.region-card .region-name {
    font-size: 1rem;
    font-weight: 700;
    color: #f0f4f8;
    line-height: 1.3;
}

.region-card .region-sage {
    font-size: 0.82rem;
    color: #A89DCE;
    font-weight: 500;
}

.region-card .region-desc {
    grid-column: 2 / 3;
    font-size: 0.85rem;
    color: #9B8EC4;
    line-height: 1.4;
    margin-top: 2px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.region-card .progress-ring {
    grid-row: 1 / 3;
    grid-column: 3;
    justify-self: center;
}

.region-card .region-stats {
    grid-column: 2 / 4;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
    font-size: 0.82rem;
    color: #A89DCE;
}

.region-card .region-stats .shrine-count {
    font-weight: 600;
}

/* Per-region color variants */
.region-card.region-xiaojiujiu { border-left: 4px solid var(--region-xiaojiujiu); color: var(--region-xiaojiujiu); }
.region-card.region-times      { border-left: 4px solid var(--region-times);      color: var(--region-times); }
.region-card.region-divide     { border-left: 4px solid var(--region-divide);     color: var(--region-divide); }
.region-card.region-mixed      { border-left: 4px solid var(--region-mixed);      color: var(--region-mixed); }
.region-card.region-fraction   { border-left: 4px solid var(--region-fraction);   color: var(--region-fraction); }
.region-card.region-power      { border-left: 4px solid var(--region-power);      color: var(--region-power); }

.region-card.region-xiaojiujiu .region-icon { background: rgba(224, 96, 64, 0.12); }
.region-card.region-times .region-icon      { background: rgba(74, 144, 217, 0.12); }
.region-card.region-divide .region-icon     { background: rgba(168, 85, 247, 0.12); }
.region-card.region-mixed .region-icon      { background: rgba(236, 72, 153, 0.12); }
.region-card.region-fraction .region-icon   { background: rgba(245, 158, 11, 0.12); }
.region-card.region-power .region-icon      { background: rgba(16, 185, 129, 0.12); }


/* ===== 4. Region Detail / Shrine List ===== */
.region-detail {
    position: fixed;
    inset: 0;
    z-index: 910;
    background: var(--hyrule-bg);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: hyrule-slide-in 0.3s ease-out;
}

.region-banner {
    position: relative;
    padding: 20px 16px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    overflow: hidden;
}

.region-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(139, 123, 247, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.region-banner .region-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 14px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    flex-shrink: 0;
}

.region-banner .region-info {
    flex: 1;
}

.region-banner .region-info h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #f0f4f8;
}

.region-banner .region-info .sage-name {
    font-size: 0.78rem;
    color: var(--sheikah-blue);
    font-weight: 500;
}

.region-banner .overall-progress {
    font-size: 0.85rem;
    color: #A89DCE;
    margin-top: 4px;
}

.shrine-list {
    padding: 0 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.shrine-entry {
    display: grid;
    grid-template-columns: 32px 1fr 28px;
    grid-template-rows: auto auto;
    gap: 0 10px;
    align-items: center;
    padding: 12px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.25s;
}

.shrine-entry:active {
    transform: scale(0.98);
}

.shrine-entry .shrine-type-dot {
    grid-row: 1 / 3;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    justify-self: center;
}

.shrine-entry .shrine-name {
    font-size: 0.92rem;
    font-weight: 600;
    color: #E8E0FF;
    line-height: 1.3;
}

.shrine-entry .shrine-subtitle {
    font-size: 0.82rem;
    color: #9B8EC4;
}

.shrine-entry .mastery-indicator {
    grid-row: 1 / 3;
    justify-self: center;
    font-size: 1.1rem;
}

.shrine-entry .shrine-preview {
    grid-column: 2 / 4;
    font-size: 0.7rem;
    color: #8B7FB8;
    margin-top: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* v22.0: Shrine entry layout fix */
.shrine-entry {
    display: flex;
    align-items: center;
    gap: 10px;
}

.shrine-entry-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.shrine-entry-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    width: 32px;
    text-align: center;
}

.shrine-entry-info {
    flex: 1;
    min-width: 0;
}

.shrine-entry-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: #E8E0FF;
    line-height: 1.3;
}

.shrine-entry-subtitle {
    font-size: 0.82rem;
    color: #9B8EC4;
    margin-top: 2px;
}

.shrine-entry-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    flex-shrink: 0;
}

.shrine-entry-count {
    font-size: 0.78rem;
    color: #8B7FB8;
}

.shrine-type-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(139, 123, 247, 0.1);
    color: var(--sheikah-blue);
}

.shrine-type-badge.shrine-type-required {
    background: rgba(255, 107, 53, 0.12);
    color: #ff6b35;
}

.shrine-type-badge.shrine-type-bonus {
    background: rgba(71, 199, 138, 0.12);
    color: var(--zonai-green);
}

/* v22.0: Status labels */
.shrine-status-label {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
}

.shrine-status-label.status-undiscovered {
    background: rgba(80, 104, 120, 0.15);
    color: #9B8EC4;
}

.shrine-status-label.status-discovered {
    background: var(--sheikah-blue-dim);
    color: var(--sheikah-blue);
}

.shrine-status-label.status-mastered {
    background: var(--zonai-green-dim);
    color: var(--zonai-green);
}

.shrine-status-label.status-perfected {
    background: var(--ancient-gold-dim);
    color: var(--ancient-gold);
}

/* v22.0: Dim undiscovered shrine entries slightly */
.shrine-entry.status-undiscovered .shrine-entry-name {
    color: #9B8EC4;
}

.shrine-entry.status-undiscovered .shrine-entry-icon {
    opacity: 0.5;
}

/* Status variants */
.shrine-entry.status-undiscovered {
    opacity: 0.5;
    border-color: var(--status-locked);
}

.shrine-entry.status-undiscovered .shrine-name {
    color: var(--status-locked);
    filter: blur(3px);
    user-select: none;
}

.shrine-entry.status-discovered {
    border-color: var(--sheikah-blue-dim);
}

.shrine-entry.status-discovered .shrine-type-dot {
    box-shadow: 0 0 6px var(--sheikah-blue-dim);
}

.shrine-entry.status-mastered {
    border-color: var(--zonai-green-dim);
    box-shadow: 0 0 12px rgba(71, 199, 138, 0.08);
}

.shrine-entry.status-mastered .shrine-name {
    color: var(--zonai-green);
}

.shrine-entry.status-perfected {
    border-color: var(--ancient-gold-dim);
    box-shadow: 0 0 16px rgba(200, 168, 80, 0.12);
}

.shrine-entry.status-perfected .shrine-name {
    color: var(--ancient-gold);
}

.shrine-entry.status-perfected .mastery-indicator {
    animation: star-sparkle 2s ease-in-out infinite;
}

/* Shrine type dots */
.shrine-type-required  { background: #e05050; }
.shrine-type-technique { background: #e0b840; }
.shrine-type-reference { background: var(--sheikah-blue); }


/* ===== 5. Knowledge Detail Card ===== */
.knowledge-detail {
    position: fixed;
    inset: 0;
    z-index: 920;
    background: var(--hyrule-bg);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: hyrule-slide-in 0.3s ease-out;
}

.knowledge-detail-header {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.knowledge-detail-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #f0f4f8;
}

.knowledge-detail-header .subtitle {
    font-size: 0.8rem;
    color: #A89DCE;
}

.knowledge-detail-header .status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    align-self: flex-start;
    margin-top: 4px;
}

.knowledge-detail-header .status-badge.badge-discovered {
    background: var(--sheikah-blue-dim);
    color: var(--sheikah-blue);
}

.knowledge-detail-header .status-badge.badge-mastered {
    background: var(--zonai-green-dim);
    color: var(--zonai-green);
}

.knowledge-detail-header .status-badge.badge-perfected {
    background: var(--ancient-gold-dim);
    color: var(--ancient-gold);
}

.knowledge-formula-box {
    margin: 0 16px;
    padding: 24px 16px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 14px;
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    color: #f0f4f8;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.knowledge-formula-box::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.03;
    pointer-events: none;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 24px, var(--sheikah-blue) 24px, var(--sheikah-blue) 25px),
        repeating-linear-gradient(90deg, transparent, transparent 24px, var(--sheikah-blue) 24px, var(--sheikah-blue) 25px);
}

.knowledge-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px;
}

.knowledge-item {
    padding: 8px 14px;
    background: var(--sheikah-blue-dim);
    border: 1px solid rgba(139, 123, 247, 0.2);
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--sheikah-blue);
    transition: background 0.2s;
}

.knowledge-item:active {
    background: rgba(139, 123, 247, 0.35);
}

.knowledge-tip {
    margin: 0 16px 12px;
    padding: 12px 14px;
    background: rgba(71, 199, 138, 0.08);
    border: 1px solid var(--zonai-green-dim);
    border-radius: 10px;
    font-size: 0.82rem;
    color: #BDB2E0;
    line-height: 1.5;
}

/* v22.0: Back button in detail pages */
.knowledge-back-btn {
    padding: 7px 14px;
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
    background: var(--hyrule-surface);
    color: var(--sheikah-blue);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.knowledge-back-btn:active {
    background: var(--sheikah-blue-dim);
}

/* v22.0: Detail page header row */
.knowledge-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    gap: 10px;
}

.knowledge-detail-status {
    flex-shrink: 0;
}

/* v22.0: Shrine title block */
.knowledge-shrine-title {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px 14px;
}

.knowledge-shrine-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.knowledge-shrine-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: #f0f4f8;
}

.knowledge-shrine-subtitle {
    font-size: 0.82rem;
    color: #A89DCE;
    margin-top: 2px;
}

/* v22.0: Knowledge sections (tip, battle effect, progress) */
.knowledge-section {
    margin: 12px 16px;
    padding: 14px 16px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 12px;
}

.knowledge-section-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--sheikah-blue);
    margin-bottom: 6px;
}

.knowledge-section-text {
    font-size: 0.82rem;
    color: #BDB2E0;
    line-height: 1.6;
}

.knowledge-progress-stats {
    font-size: 0.78rem;
    color: #A89DCE;
    margin-bottom: 8px;
}

.knowledge-progress-bar {
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
}

.knowledge-progress-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s;
}

.knowledge-tip::before {
    content: '\1F4A1';
    margin-right: 6px;
}

.knowledge-battle {
    margin: 0 16px 12px;
    padding: 12px 14px;
    background: rgba(224, 96, 64, 0.08);
    border: 1px solid rgba(224, 96, 64, 0.2);
    border-radius: 10px;
    font-size: 0.82rem;
    color: #BDB2E0;
    line-height: 1.5;
}

.knowledge-battle::before {
    content: '\2694\FE0F';
    margin-right: 6px;
}

.knowledge-progress {
    margin: 0 16px 12px;
    padding: 14px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
}

.knowledge-progress .progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #A89DCE;
    margin-bottom: 8px;
}

.knowledge-progress .progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    overflow: hidden;
}

.knowledge-progress .progress-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--sheikah-blue), var(--zonai-green));
    transition: width 0.5s ease-out;
}

.knowledge-progress .progress-stats {
    display: flex;
    gap: 16px;
    margin-top: 10px;
    font-size: 0.82rem;
    color: #9B8EC4;
}

.knowledge-related {
    margin: 0 16px 12px;
    padding: 14px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
}

.knowledge-related h4 {
    font-size: 0.78rem;
    color: #A89DCE;
    margin-bottom: 8px;
    font-weight: 600;
}

.knowledge-related a {
    display: inline-block;
    padding: 4px 10px;
    margin: 3px 4px 3px 0;
    background: var(--sheikah-blue-dim);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--sheikah-blue);
    text-decoration: none;
    transition: background 0.2s;
}

.knowledge-related a:active {
    background: rgba(0, 180, 216, 0.4);
}

.knowledge-quiz-btn {
    display: block;
    width: calc(100% - 32px);
    margin: 8px 16px 24px;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--zonai-green), #38b27a);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    letter-spacing: 0.5px;
}

.knowledge-quiz-btn:active {
    transform: scale(0.97);
    box-shadow: 0 0 20px var(--zonai-green-dim);
}


/* ===== 6. Quick Quiz Overlay ===== */
.quiz-overlay {
    position: fixed;
    inset: 0;
    z-index: 950;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(6, 12, 24, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: hyrule-slide-in 0.25s ease-out;
    padding: 24px 16px;
}

.quiz-card {
    width: 100%;
    max-width: 400px;
    padding: 28px 20px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 16px;
    text-align: center;
}

.quiz-card .quiz-question {
    font-size: 1.6rem;
    font-weight: 800;
    color: #f0f4f8;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.quiz-choices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.quiz-choices button {
    padding: 16px 14px;
    border: 1px solid var(--hyrule-border);
    border-radius: 10px;
    background: var(--hyrule-bg);
    color: #E8E0FF;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.quiz-choices button:active {
    transform: scale(0.95);
}

.quiz-choices button.correct {
    background: var(--zonai-green-dim);
    border-color: var(--zonai-green);
    color: var(--zonai-green);
}

.quiz-choices button.wrong {
    background: rgba(224, 80, 80, 0.2);
    border-color: #e05050;
    color: #e05050;
}

.quiz-feedback {
    padding: 12px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    animation: mastery-up 0.4s ease-out;
}

.quiz-feedback.feedback-correct {
    background: var(--zonai-green-dim);
    color: var(--zonai-green);
}

.quiz-feedback.feedback-wrong {
    background: rgba(224, 80, 80, 0.15);
    color: #e05050;
}

.quiz-result {
    width: 100%;
    max-width: 400px;
    padding: 28px 20px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 16px;
    text-align: center;
}

.quiz-result h3 {
    font-size: 1.2rem;
    color: #f0f4f8;
    margin-bottom: 8px;
}

.quiz-result .score {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--zonai-green);
    margin-bottom: 16px;
}


/* ===== 7. Quick View Mode ===== */
/* v22.0: Quick View — 速查模式 */
.quick-view {
    padding: 0 16px;
}

.quick-view-tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 8px 0 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.quick-view-tabs::-webkit-scrollbar {
    display: none;
}

.quick-view-tab {
    flex-shrink: 0;
    padding: 10px 16px;
    border: 1px solid var(--hyrule-border);
    border-radius: 20px;
    background: var(--hyrule-surface);
    color: #A89DCE;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.quick-view-tab.active {
    background: var(--sheikah-blue);
    color: #fff;
    border-color: var(--sheikah-blue);
}

.quick-view-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-bottom: 24px;
}

.quick-view-card {
    padding: 14px 16px;
    background: var(--hyrule-surface);
    border: 1px solid var(--hyrule-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: border-color 0.2s;
}

.quick-view-card:active {
    border-color: var(--sheikah-blue);
}

.quick-view-card-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--sheikah-blue);
    line-height: 1.3;
}

.quick-view-card-items {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.quick-view-item {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(139, 123, 247, 0.08);
    border: 1px solid rgba(139, 123, 247, 0.15);
    border-radius: 16px;
    font-size: 0.82rem;
    font-weight: 500;
    color: #E8E0FF;
    line-height: 1.4;
}

/* v22.0: Knowledge mode bar */
.knowledge-mode-bar {
    display: flex;
    gap: 10px;
    padding: 12px 16px 4px;
    justify-content: center;
}

.knowledge-mode-btn {
    flex: 1;
    max-width: 160px;
    padding: 10px 16px;
    border: 1.5px solid var(--hyrule-border);
    border-radius: 12px;
    background: var(--hyrule-surface);
    color: #A89DCE;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    text-align: center;
}

.knowledge-mode-btn.active {
    background: var(--sheikah-blue-dim);
    color: var(--sheikah-blue);
    border-color: var(--sheikah-blue);
}

.knowledge-mode-btn:active {
    transform: scale(0.97);
}

/* v22.0: Mode description text */
.knowledge-mode-desc {
    text-align: center;
    font-size: 0.78rem;
    color: #9B8EC4;
    padding: 6px 16px 8px;
    line-height: 1.4;
}

/* v22.0: Practice button */
.knowledge-practice-btn {
    display: block;
    width: 100%;
    padding: 14px 20px;
    margin-top: 8px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--sheikah-blue), #6C5CE7);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
    text-align: center;
}

.knowledge-practice-btn:active {
    opacity: 0.8;
}

/* v22.0: Explore intro banner (legacy, kept for compat) */
.explore-intro {
    margin: 0 16px 12px;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(139, 123, 247, 0.08) 0%, rgba(71, 199, 138, 0.06) 100%);
    border: 1px solid var(--hyrule-border);
    border-radius: 12px;
    font-size: 0.82rem;
    color: #A89DCE;
    line-height: 1.5;
    display: none;
}

.explore-intro-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--sheikah-blue);
    margin-bottom: 4px;
    display: none;
}


/* ===== 8. Korok Discovery ===== */
.korok-overlay {
    position: fixed;
    inset: 0;
    z-index: 960;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 12, 24, 0.88);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: hyrule-slide-in 0.3s ease-out;
}

.korok-popup {
    width: 85%;
    max-width: 340px;
    padding: 32px 24px;
    background: var(--hyrule-surface);
    border: 1px solid var(--zonai-green-dim);
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 0 40px rgba(71, 199, 138, 0.1);
}

.korok-popup .korok-emoji {
    font-size: 3rem;
    animation: korok-bounce 1s ease-in-out infinite;
    margin-bottom: 12px;
}

.korok-popup h3 {
    font-size: 1.1rem;
    color: var(--zonai-green);
    font-weight: 700;
    margin-bottom: 8px;
}

.korok-hint {
    font-size: 0.85rem;
    color: #A89DCE;
    line-height: 1.5;
    margin-bottom: 14px;
}

.korok-reveal {
    padding: 14px;
    background: var(--zonai-green-dim);
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--zonai-green);
    animation: lightroot-reveal 0.6s ease-out;
}


/* ===== 9. Sage Awakening ===== */
.sage-overlay {
    position: fixed;
    inset: 0;
    z-index: 970;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 12, 24, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: hyrule-slide-in 0.35s ease-out;
}

.sage-popup {
    width: 85%;
    max-width: 360px;
    padding: 36px 24px;
    background: linear-gradient(180deg, var(--hyrule-surface), #120828);
    border: 1px solid var(--ancient-gold-dim);
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 0 60px rgba(200, 168, 80, 0.1);
    animation: sage-glow 3s ease-in-out infinite;
}

.sage-popup .sage-icon {
    font-size: 3.5rem;
    margin-bottom: 14px;
}

.sage-popup h2 {
    font-size: 1.3rem;
    color: var(--ancient-gold);
    font-weight: 800;
    margin-bottom: 6px;
}

.sage-popup p {
    font-size: 0.88rem;
    color: #BDB2E0;
    line-height: 1.5;
    margin-bottom: 16px;
}

.sage-reward {
    padding: 14px;
    background: var(--ancient-gold-dim);
    border: 1px solid rgba(200, 168, 80, 0.3);
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ancient-gold);
}


/* ===== 10. Animations ===== */
@keyframes hyrule-slide-in {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes hyrule-slide-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(24px);
    }
}

@keyframes lightroot-reveal {
    0% {
        opacity: 0;
        filter: brightness(2.5);
        transform: scale(0.9);
    }
    50% {
        filter: brightness(1.8);
    }
    100% {
        opacity: 1;
        filter: brightness(1);
        transform: scale(1);
    }
}

@keyframes mastery-up {
    0% {
        transform: scale(0.85);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.08);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes sheikah-pulse {
    0%, 100% {
        opacity: 0.03;
    }
    50% {
        opacity: 0.08;
    }
}

@keyframes progress-ring-fill {
    from {
        stroke-dashoffset: var(--ring-circumference, 251);
    }
    to {
        stroke-dashoffset: var(--ring-offset, 0);
    }
}

@keyframes korok-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes sage-glow {
    0%, 100% {
        box-shadow: 0 0 40px rgba(200, 168, 80, 0.08);
    }
    50% {
        box-shadow: 0 0 60px rgba(200, 168, 80, 0.18);
    }
}

@keyframes star-sparkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    25% {
        opacity: 0.7;
        transform: scale(0.9);
    }
    50% {
        opacity: 1;
        transform: scale(1.15);
    }
    75% {
        opacity: 0.85;
        transform: scale(0.95);
    }
}

@keyframes triforce-rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


/* ===== 11. Sheikah Pattern Decoration ===== */
.sheikah-pattern {
    position: relative;
}

.sheikah-pattern::before,
.sheikah-pattern::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
}

.sheikah-pattern::before {
    opacity: 0.04;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 20px, var(--sheikah-blue) 20px, var(--sheikah-blue) 20.5px),
        repeating-linear-gradient(90deg, transparent, transparent 20px, var(--sheikah-blue) 20px, var(--sheikah-blue) 20.5px);
    animation: sheikah-pulse 6s ease-in-out infinite;
}

.sheikah-pattern::after {
    opacity: 0.06;
    background:
        repeating-linear-gradient(45deg, transparent, transparent 30px, var(--sheikah-blue) 30px, var(--sheikah-blue) 30.5px),
        repeating-linear-gradient(-45deg, transparent, transparent 30px, var(--sheikah-blue) 30px, var(--sheikah-blue) 30.5px);
    animation: sheikah-pulse 8s ease-in-out infinite reverse;
}


/* ===== 12. SVG Progress Ring Component ===== */
.progress-ring {
    width: 48px;
    height: 48px;
    position: relative;
}

.progress-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.06);
    stroke-width: 3;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--sheikah-blue);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.6s ease-out;
    animation: progress-ring-fill 1s ease-out forwards;
}

.progress-ring-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    color: #BDB2E0;
}


/* ===== 13. Responsive ===== */

/* 2-column region map at 480px */
@media (min-width: 480px) {
    .region-map {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    .region-card {
        grid-template-columns: 44px 1fr;
        grid-template-rows: auto auto auto;
    }

    .region-card .progress-ring {
        grid-row: 1;
        grid-column: 2;
        justify-self: end;
    }

    .region-card .region-stats {
        grid-column: 1 / -1;
    }
}

/* 3-column region map at 768px */
@media (min-width: 768px) {
    .region-map {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        max-width: 720px;
        margin: 0 auto;
    }

    .knowledge-header h1 {
        font-size: 1.3rem;
    }

    .quiz-card .quiz-question {
        font-size: 1.8rem;
    }

    .knowledge-formula-box {
        font-size: 2.4rem;
        padding: 32px 20px;
    }

    .shrine-list {
        max-width: 560px;
        margin: 0 auto;
    }
}


/* ===== 14. Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .knowledge-page,
    .region-detail,
    .knowledge-detail,
    .quiz-overlay,
    .korok-overlay,
    .sage-overlay {
        animation: none !important;
    }

    .region-card::before,
    .sheikah-pattern::before,
    .sheikah-pattern::after {
        animation: none !important;
    }

    .shrine-entry.status-perfected .mastery-indicator,
    .korok-popup .korok-emoji,
    .progress-ring-fill,
    .quiz-feedback,
    .korok-reveal {
        animation: none !important;
    }

    * {
        transition-duration: 0.01ms !important;
    }
}