/**
 * Super Minds - Baseball Theme Shared Styles
 * Used by: unit8/*, unit9/*, super-minds-baseball/* pages
 * Extracted from inline <style> blocks to eliminate ~800 lines of duplication
 */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    --leather-primary: #F5F5DC;
    --stitch-red: #DC143C;
    --field-green: #2E5D34;
}

/* ============================================
   Base Reset & Body
   ============================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background-color: var(--field-green);
    background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 50%),
        linear-gradient(135deg, #2E5D34 0%, #1B4332 100%);
    font-family: 'Noto Sans SC', sans-serif;
    min-height: 100vh;
    color: #1f2937;
}

/* ============================================
   Typography Utilities
   ============================================ */
.baseball-font { font-family: 'Cinzel', serif; letter-spacing: 0.05em; }
.chinese-font { font-family: 'Noto Serif SC', serif; }

/* ============================================
   Keyframe Animations
   ============================================ */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.float-anim {
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   Card System
   ============================================ */
.leather-card {
    background: linear-gradient(135deg, #F5F5DC 0%, #E8DCC4 100%);
    border: 3px solid #8B4513;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.5);
    position: relative;
}

.leather-card::before {
    content: '';
    position: absolute;
    top: 8px; left: 8px; right: 8px; bottom: 8px;
    border: 2px dashed var(--stitch-red);
    border-radius: 8px;
    pointer-events: none;
}

.stitch-border {
    border: 3px solid var(--stitch-red);
    border-radius: 12px;
    position: relative;
    background: #FAFAFA;
}

.reading-card {
    background: rgba(255, 255, 255, 0.95);
    border: 3px solid #2E5D34;
    border-radius: 15px;
}

.grammar-card {
    background: rgba(255, 255, 255, 0.95);
    border: 3px solid #4682B4;
    border-radius: 15px;
    transition: all 0.3s;
}

.grammar-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* ============================================
   Navigation
   ============================================ */
.nav-link {
    color: rgba(255,255,255,0.9);
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: white;
    border-bottom-color: var(--stitch-red);
}

/* ============================================
   Section Title
   ============================================ */
.section-title {
    background: linear-gradient(135deg, #8B4513 0%, #654321 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    display: inline-block;
    border: 2px solid #F5F5DC;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* ============================================
   Vocabulary & Word Cards
   ============================================ */
.word-card {
    background: white;
    border-left: 4px solid var(--stitch-red);
    transition: all 0.3s ease;
    cursor: pointer;
}

.word-card:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.vocab-card {
    background: linear-gradient(145deg, #fffef8 0%, #f5f5dc 100%);
    border: 2px solid #8B4513;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.vocab-card:hover {
    transform: translateY(-3px) rotate(1deg);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    border-color: #DC143C;
}

.vocab-card:active {
    transform: translateY(-1px) rotate(0deg);
}

.vocab-card.speaking {
    background: linear-gradient(145deg, #dcfce7 0%, #bbf7d0 100%);
    border-color: #16a34a;
    animation: pulse 0.5s ease;
}

.speaker-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 1.2rem;
    opacity: 0.3;
    transition: all 0.3s;
}

.vocab-card:hover .speaker-icon {
    opacity: 1;
    transform: scale(1.2);
}

.vocab-card.speaking .speaker-icon {
    opacity: 1;
    color: #16a34a;
}

/* ============================================
   Fill-in-the-Blank
   ============================================ */
.fill-blank {
    display: inline-block;
    min-width: 80px;
    padding: 4px 12px;
    border-bottom: 3px solid var(--stitch-red);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: bold;
    color: #333;
    background: white;
    border-radius: 4px;
    margin: 0 4px;
    user-select: none;
}

.fill-blank.revealed {
    background: #FEF3C7;
    border: 2px solid #F59E0B;
    color: #92400e;
    transform: scale(1.05);
}

/* ============================================
   Grammar & Interactive Components
   ============================================ */
.grammar-box {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    border-radius: 12px;
    border: 3px solid #fbbf24;
}

.grammar-highlight {
    background: linear-gradient(120deg, #fef3c7 0%, #fef3c7 100%);
    background-repeat: no-repeat;
    background-size: 100% 40%;
    background-position: 0 88%;
    padding: 0 4px;
    font-weight: bold;
    color: #92400e;
}

.interactive-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #FEF3C7;
    border-left: 4px solid #F59E0B;
}

.interactive-answer.show {
    max-height: 500px;
    margin-top: 10px;
    padding: 12px;
    border-radius: 0 8px 8px 0;
}

/* ============================================
   Reading & Translation
   ============================================ */
.reading-paragraph {
    cursor: pointer;
    transition: all 0.3s;
    border-left: 3px solid transparent;
    padding-left: 12px;
}

.reading-paragraph:hover {
    border-left-color: var(--stitch-red);
    background: rgba(220,20,60,0.05);
}

.passage-paragraph {
    cursor: pointer;
    padding: 12px;
    border-radius: 8px;
    transition: background 0.2s;
}

.passage-paragraph:hover {
    background: #f0f8ff;
}

.translation {
    display: none;
    color: #666;
    font-style: italic;
    margin-top: 8px;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 8px;
    border-left: 3px solid #4682B4;
}

.translation.show {
    display: block;
}

/* Animated variant — uses max-height instead of display */
.translation.translation-animated {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
    opacity: 0;
    padding: 0;
    color: #4b5563;
    font-size: 0.95rem;
    border-top: 1px dashed #d1d5db;
    margin-top: 0.5rem;
    background: transparent;
    border-left: none;
    border-radius: 0;
}

.translation.translation-animated.show {
    max-height: 200px;
    opacity: 1;
    padding: 10px;
    padding-top: 0.75rem;
}

/* ============================================
   Todo / Checklist System
   ============================================ */
.todo-item {
    transition: all 0.3s;
    cursor: pointer;
}

.todo-item:hover {
    transform: translateX(5px);
}

.todo-item.completed {
    opacity: 0.7;
    border-left-color: #4CAF50;
    background: #F1F8E9;
}

.todo-item.completed .todo-title {
    text-decoration: line-through;
    color: #666;
}

.todo-checkbox {
    width: 28px;
    height: 28px;
    border: 3px solid #FF5722;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: white;
    transition: all 0.3s;
}

.todo-item.completed .todo-checkbox {
    background: #4CAF50;
    border-color: #4CAF50;
}

.todo-checkbox::after {
    content: '✓';
    color: white;
    font-weight: bold;
    font-size: 1rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.todo-item.completed .todo-checkbox::after {
    opacity: 1;
}

/* ============================================
   Data Table
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.data-table th {
    background: #4682B4;
    color: white;
    padding: 15px;
    text-align: left;
    border: 1px solid #357abd;
    font-weight: bold;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid #eee;
    border-right: 1px solid #eee;
    line-height: 1.6;
}

.data-table td:first-child { border-left: 1px solid #eee; }
.data-table tr:hover { background: #f5f5f5; }

/* ============================================
   Dialogue & Scene Components
   ============================================ */
.dialogue-scene {
    background: white;
    border: 2px solid #8B4513;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
}

.hint-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* ============================================
   Toggle & Tip Components
   ============================================ */
.toggle-btn {
    background: linear-gradient(145deg, #4682B4, #5a9fd4);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.05em;
    margin: 15px 0;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    transition: all 0.2s;
}

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.tip-box {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border: 2px solid #f39c12;
    border-radius: 12px;
    padding: 20px 20px 20px 55px;
    margin: 25px 0;
    position: relative;
    font-size: 1.02em;
    line-height: 1.7;
}

.tip-box::before {
    content: '💡';
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.6em;
}

.note-box {
    background: #e3f2fd;
    padding: 12px 15px;
    border-radius: 8px;
    margin-top: 15px;
    border-left: 4px solid #2196f3;
}

/* ============================================
   Quiz Components
   ============================================ */
.quiz-option {
    padding: 12px 16px;
    border: 2px solid #ddd;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 8px;
}

.quiz-option:hover {
    border-color: #4682B4;
    background: #f0f8ff;
}

.quiz-option.correct {
    border-color: #16a34a;
    background: #dcfce7;
}

.quiz-option.wrong {
    border-color: #dc2626;
    background: #fee2e2;
}

.quiz-answer-box {
    display: none;
    margin-top: 10px;
    padding: 15px;
    background: #f0f8ff;
    border-radius: 10px;
    border-left: 4px solid #4682B4;
}

.quiz-answer-box.show {
    display: block;
}

/* ============================================
   Word Quiz Blank
   ============================================ */
.word-quiz-blank {
    display: inline-block;
    min-width: 120px;
    border-bottom: 2px solid #e74c3c;
    margin: 0 4px;
    cursor: pointer;
    text-align: center;
    color: transparent;
    transition: all 0.3s;
    padding: 0 8px;
}

.word-quiz-blank.revealed {
    color: #e74c3c;
    background: #ffeaea;
    border-radius: 4px;
    font-weight: bold;
}

.word-quiz-blank:hover { background: #ffeaea; }

/* ============================================
   Answer Table & Blank (Dialogue Fill-in)
   ============================================ */
.answer-table {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease, margin-top 0.3s ease;
    opacity: 0;
    margin-top: 0;
    background: #f0f8ff;
    border: 2px dashed #4682B4;
    border-radius: 12px;
    padding: 0 25px;
}

.answer-table.show {
    max-height: 2000px;
    opacity: 1;
    margin-top: 20px;
    padding: 25px;
}

.blank {
    display: inline-block;
    min-width: 90px;
    border-bottom: 2px solid #e74c3c;
    margin: 0 5px;
    cursor: pointer;
    text-align: center;
    color: transparent;
    transition: all 0.3s;
    padding: 0 8px;
}

.blank.revealed {
    color: #e74c3c;
    background: #ffeaea;
    border-radius: 4px;
    font-weight: bold;
}

.blank:hover { background: #ffeaea; }

/* ============================================
   Sports-Specific (Baseball Diamond)
   ============================================ */
.ball-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    margin-right: 12px;
    font-size: 24px;
    border: 2px solid #ddd;
}

.baseball-diamond {
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    transform: rotate(45deg);
    margin: 20px auto;
    border: 4px solid rgba(255,255,255,0.3);
    position: relative;
}

.base {
    width: 20px;
    height: 20px;
    background: white;
    position: absolute;
    border-radius: 50%;
}

.base.home { bottom: -10px; right: -10px; background: var(--stitch-red); }
.base.first { top: -10px; right: -10px; }
.base.second { top: -10px; left: -10px; }
.base.third { bottom: -10px; left: -10px; }

/* ============================================
   Character Cards (Fun Things We Do)
   ============================================ */
.character-card {
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    border: 3px solid;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.character-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
}

.amy { border-color: #ec4899; }
.ben { border-color: #3b82f6; }
.cindy { border-color: #10b981; }
.david { border-color: #f59e0b; }
.writer { border-color: #8b5cf6; }

.activity-icon {
    font-size: 3rem;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.2));
}

/* ============================================
   Example Box (Grammar Review)
   ============================================ */
.example-box {
    background: #f5f5f5;
    padding: 25px;
    border-radius: 12px;
    margin-top: 30px;
    font-size: 1.05em;
}

.example-box ul {
    margin: 15px 0;
    padding-left: 30px;
}

.example-box li {
    margin: 10px 0;
    line-height: 1.8;
}

/* ============================================
   Grammar Structure
   ============================================ */
.grammar-structure {
    background: #e6f3ff;
    border-left: 5px solid #4682B4;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 0 10px 10px 0;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #2c3e50;
    font-size: 1.05em;
}

/* ============================================
   Option Button (Reading Quiz)
   ============================================ */
.option-btn {
    border: 2px solid #e5e7eb;
    background: #f9fafb;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    transition: all 0.3s;
    font-weight: 500;
}

.option-btn.correct {
    background: #dcfce7;
    border-color: #16a34a;
    color: #166534;
    font-weight: 700;
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2);
}

.option-btn.correct::before {
    content: '✓ ';
    color: #16a34a;
    font-weight: bold;
}

/* ============================================
   Text Block & Translation (Fun Things We Do)
   ============================================ */
.text-block {
    cursor: pointer;
    transition: all 0.2s;
}

.text-block:hover {
    filter: brightness(0.98);
}

.translate-hint {
    font-size: 0.75rem;
    color: #6b7280;
    opacity: 0;
    transition: opacity 0.3s;
    margin-top: 0.25rem;
}

.text-block:hover .translate-hint {
    opacity: 1;
}

/* ============================================
   Question Item & Answer Section
   ============================================ */
.question-item {
    transition: all 0.3s ease;
    cursor: pointer;
}

.question-item:hover {
    background: rgba(34, 197, 94, 0.1);
}

.answer-section {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease, margin-top 0.3s ease;
    opacity: 0;
    margin-top: 0;
}

.answer-section.show {
    max-height: 400px;
    opacity: 1;
    margin-top: 1rem;
}

/* ============================================
   Pronunciation Hint
   ============================================ */
.pronunciation-hint {
    font-size: 0.7rem;
    color: #8b4513;
    margin-top: 0.5rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.vocab-card:hover .pronunciation-hint {
    opacity: 1;
}

/* ============================================
   Navigation Cards (Amazing Vehicles)
   ============================================ */
.nav-card {
    background: white;
    border-radius: 20px;
    padding: 20px 15px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    cursor: pointer;
    border: 4px solid transparent;
    transition: all 0.3s;
}

.nav-card:nth-child(1) { border-color: #FF6B6B; }
.nav-card:nth-child(2) { border-color: #4ECDC4; }
.nav-card:nth-child(3) { border-color: #45B7D1; }
.nav-card:nth-child(4) { border-color: #96CEB4; }

.nav-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

/* ============================================
   Option Correct (Amazing Vehicles)
   ============================================ */
.option.correct {
    background: #C8E6C9;
    border-color: #2E7D32;
    color: #2E7D32;
    font-weight: 700;
}