/* =================================================================
   LESSON WORDS MODULE STYLES
   Hybrid A+C Design: Grouped sections with colored border bubbles
   ================================================================= */

/* CSS Variables for word type colors */
:root {
    --lw-noun-color: #3b82f6;
    --lw-verb-color: #10b981;
    --lw-adverb-color: #14b8a6;
    --lw-adj-color: #f59e0b;
    --lw-qword-color: #ef4444;
    --lw-affix-color: #8b5cf6;
    --lw-pronoun-color: #ec4899;
    --lw-function-color: #6b7280;
    --lw-other-color: #64748b;
}

/* Module Container */
.module-lesson-words {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.lesson-words-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.lesson-words-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.lesson-words-header h1 i {
    color: var(--primary);
}

.lesson-words-badge {
    background: var(--bg-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Content Area */
.lesson-words-content {
    min-height: 200px;
}

/* Loading State */
.lesson-words-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.lesson-words-loading i {
    font-size: 2rem;
    margin-bottom: 12px;
    color: var(--primary);
}

/* Empty State */
.lesson-words-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.lesson-words-empty i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.lesson-words-empty h3 {
    margin: 0 0 8px 0;
    color: var(--text-primary);
}

.lesson-words-empty p {
    margin: 0;
    max-width: 400px;
}

/* Sections Container */
.lesson-words-sections {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Individual Section */
.lw-section {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

/* Section Header */
.lw-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 14px;
    border-left: 4px solid;
}

/* Header color variants */
.lw-header.noun {
    background: rgba(59, 130, 246, 0.12);
    border-left-color: var(--lw-noun-color);
}

.lw-header.verb {
    background: rgba(16, 185, 129, 0.12);
    border-left-color: var(--lw-verb-color);
}

.lw-header.adverb {
    background: rgba(20, 184, 166, 0.12);
    border-left-color: var(--lw-adverb-color);
}

.lw-header.adj {
    background: rgba(245, 158, 11, 0.12);
    border-left-color: var(--lw-adj-color);
}

.lw-header.qword {
    background: rgba(239, 68, 68, 0.12);
    border-left-color: var(--lw-qword-color);
}

.lw-header.affix {
    background: rgba(139, 92, 246, 0.12);
    border-left-color: var(--lw-affix-color);
}

.lw-header.pronoun {
    background: rgba(236, 72, 153, 0.12);
    border-left-color: var(--lw-pronoun-color);
}

.lw-header.function {
    background: rgba(107, 114, 128, 0.12);
    border-left-color: var(--lw-function-color);
}

.lw-header.other {
    background: rgba(100, 116, 139, 0.12);
    border-left-color: var(--lw-other-color);
}

.lw-type-name {
    font-weight: 600;
    color: var(--text-primary);
}

.lw-count {
    font-size: 12px;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.06);
    padding: 2px 8px;
    border-radius: 10px;
}

/* Words Container */
.lw-words {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Word Bubble Base */
.lw-bubble {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 2px solid;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

/* Bubble color variants */
.lw-bubble.noun {
    border-color: var(--lw-noun-color);
    background: rgba(59, 130, 246, 0.08);
}

.lw-bubble.verb {
    border-color: var(--lw-verb-color);
    background: rgba(16, 185, 129, 0.08);
}

.lw-bubble.adverb {
    border-color: var(--lw-adverb-color);
    background: rgba(20, 184, 166, 0.08);
}

.lw-bubble.adj {
    border-color: var(--lw-adj-color);
    background: rgba(245, 158, 11, 0.08);
}

.lw-bubble.qword {
    border-color: var(--lw-qword-color);
    background: rgba(239, 68, 68, 0.08);
}

.lw-bubble.affix {
    border-color: var(--lw-affix-color);
    background: rgba(139, 92, 246, 0.08);
}

.lw-bubble.pronoun {
    border-color: var(--lw-pronoun-color);
    background: rgba(236, 72, 153, 0.08);
}

.lw-bubble.function {
    border-color: var(--lw-function-color);
    background: rgba(107, 114, 128, 0.08);
}

.lw-bubble.other {
    border-color: var(--lw-other-color);
    background: rgba(100, 116, 139, 0.08);
}

/* Bubble hover states */
.lw-bubble:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.12);
}

.lw-bubble.noun:hover { background: rgba(59, 130, 246, 0.18); }
.lw-bubble.verb:hover { background: rgba(16, 185, 129, 0.18); }
.lw-bubble.adverb:hover { background: rgba(20, 184, 166, 0.18); }
.lw-bubble.adj:hover { background: rgba(245, 158, 11, 0.18); }
.lw-bubble.qword:hover { background: rgba(239, 68, 68, 0.18); }
.lw-bubble.affix:hover { background: rgba(139, 92, 246, 0.18); }
.lw-bubble.pronoun:hover { background: rgba(236, 72, 153, 0.18); }
.lw-bubble.function:hover { background: rgba(107, 114, 128, 0.18); }
.lw-bubble.other:hover { background: rgba(100, 116, 139, 0.18); }

/* Bubble playing audio state */
.lw-bubble-playing {
    animation: bubble-pulse 0.3s ease-in-out;
}

@keyframes bubble-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Footer */
.lw-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.lw-total {
    font-size: 13px;
    color: var(--text-secondary);
}

/* =================================================================
   RESPONSIVE STYLES
   ================================================================= */

/* Tablet */
@media (max-width: 768px) {
    .module-lesson-words {
        padding: 16px;
    }

    .lesson-words-header h1 {
        font-size: 1.25rem;
    }

    .lesson-words-sections {
        gap: 16px;
    }

    .lw-section {
        padding: 12px;
        border-radius: 10px;
    }

    .lw-header {
        padding: 6px 12px;
        margin-bottom: 10px;
        font-size: 13px;
    }

    .lw-words {
        gap: 6px;
    }

    .lw-bubble {
        padding: 4px 10px;
        font-size: 13px;
        border-radius: 14px;
    }
}

/* Phone */
@media (max-width: 480px) {
    .module-lesson-words {
        padding: 12px;
    }

    .lesson-words-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 16px;
        padding-bottom: 12px;
    }

    .lesson-words-header h1 {
        font-size: 1.1rem;
    }

    .lesson-words-badge {
        padding: 4px 10px;
        font-size: 0.75rem;
    }

    .lesson-words-sections {
        gap: 12px;
    }

    .lw-section {
        padding: 10px;
        border-radius: 8px;
    }

    .lw-header {
        padding: 5px 10px;
        margin-bottom: 8px;
        font-size: 12px;
        border-left-width: 3px;
    }

    .lw-type-name {
        font-size: 12px;
    }

    .lw-count {
        font-size: 10px;
        padding: 1px 6px;
    }

    .lw-words {
        gap: 5px;
    }

    .lw-bubble {
        padding: 3px 8px;
        font-size: 11px;
        border-radius: 12px;
        border-width: 1.5px;
    }

    .lw-footer {
        margin-top: 16px;
        padding-top: 12px;
    }

    .lw-total {
        font-size: 11px;
    }
}

/* =================================================================
   DARK MODE SUPPORT
   ================================================================= */

[data-theme="dark"] .lw-section {
    background: var(--bg-secondary);
}

[data-theme="dark"] .lw-bubble {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .lw-count {
    background: rgba(255, 255, 255, 0.08);
}

/* Dark mode bubble backgrounds */
[data-theme="dark"] .lw-bubble.noun { background: rgba(59, 130, 246, 0.15); }
[data-theme="dark"] .lw-bubble.verb { background: rgba(16, 185, 129, 0.15); }
[data-theme="dark"] .lw-bubble.adverb { background: rgba(20, 184, 166, 0.15); }
[data-theme="dark"] .lw-bubble.adj { background: rgba(245, 158, 11, 0.15); }
[data-theme="dark"] .lw-bubble.qword { background: rgba(239, 68, 68, 0.15); }
[data-theme="dark"] .lw-bubble.affix { background: rgba(139, 92, 246, 0.15); }
[data-theme="dark"] .lw-bubble.pronoun { background: rgba(236, 72, 153, 0.15); }
[data-theme="dark"] .lw-bubble.function { background: rgba(107, 114, 128, 0.15); }
[data-theme="dark"] .lw-bubble.other { background: rgba(100, 116, 139, 0.15); }

/* Dark mode hover states */
[data-theme="dark"] .lw-bubble.noun:hover { background: rgba(59, 130, 246, 0.25); }
[data-theme="dark"] .lw-bubble.verb:hover { background: rgba(16, 185, 129, 0.25); }
[data-theme="dark"] .lw-bubble.adverb:hover { background: rgba(20, 184, 166, 0.25); }
[data-theme="dark"] .lw-bubble.adj:hover { background: rgba(245, 158, 11, 0.25); }
[data-theme="dark"] .lw-bubble.qword:hover { background: rgba(239, 68, 68, 0.25); }
[data-theme="dark"] .lw-bubble.affix:hover { background: rgba(139, 92, 246, 0.25); }
[data-theme="dark"] .lw-bubble.pronoun:hover { background: rgba(236, 72, 153, 0.25); }
[data-theme="dark"] .lw-bubble.function:hover { background: rgba(107, 114, 128, 0.25); }
[data-theme="dark"] .lw-bubble.other:hover { background: rgba(100, 116, 139, 0.25); }