/**
 * Sílabas Trabadas Lesson - Elegant Styles
 * File: /qmbportal/quizzes/assets/css/siltrabada-lesson.css
 * 
 * Clean, professional design with subtle animations
 * Optimized for educational clarity and visual hierarchy
 */

/* Import consolidated utilities with all variables */
@import url('components/utilities.css');
@import url('components/header.css');
@import url('components/modal.css');

/* Additional Google Fonts for letter tracing */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@100..900&display=swap');

/* Body styling for letter tracing page */
body {
    background: linear-gradient(135deg, #112167 0%, #2c3e50 100%);
    min-height: 100vh;
    padding: var(--spacing-xl);
    
    /* Enhanced mobile scrolling */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    scroll-behavior: smooth;
}

/* Main container with performance optimizations */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
    
    /* GPU acceleration */
    will-change: transform;
    transform: translateZ(0);
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, 
        var(--primary-blue), 
        var(--accent-pink), 
        var(--accent-green), 
        var(--accent-orange)
    );
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}
/* ========================================
   BASE LAYOUT
   ======================================== */
.lesson-container {
    min-height: 70vh;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    position: relative;
}

/* Subtle pattern overlay */
.lesson-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(244, 208, 63, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
    pointer-events: none;
    border-radius: var(--radius-xl);
}

/* Screen management */
.screen {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.screen.active {
    display: block;
    opacity: 1;
    animation: fadeIn var(--transition-normal) ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   BLEND SELECTION SCREEN
   ======================================== */
.screen-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.screen-header h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.screen-header p {
    font-family: "Quicksand", sans-serif;
    font-size: 1.1rem;
    color: var(--medium-gray);
    font-weight: 500;
}

/* Blend Grid */
.blend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
}

.blend-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.blend-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #cbd5e1 0%, #94a3b8 100%);
    transition: background var(--transition-normal);
}

.blend-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.blend-card.selected {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: var(--golden-dark);
}

.blend-card.selected::before {
    background: linear-gradient(90deg, var(--golden) 0%, var(--golden-dark) 100%);
}

.blend-card.mastered {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: var(--accent-green);
}

.blend-card.mastered::before {
    background: linear-gradient(90deg, var(--accent-green) 0%, #059669 100%);
}

.blend-display {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--dark-gray);
    font-family: var(--font-primary);
    letter-spacing: 2px;
}

.blend-status {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.status-indicator {
    font-size: 0.5rem;
    color: #cbd5e1;
    transition: all var(--transition-normal);
}

.status-indicator.completed {
    color: var(--accent-green);
    transform: scale(1.5);
}

.blend-progress-text {
    font-size: 0.75rem;
    color: var(--medium-gray);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

/* Primary Button */
.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    background: linear-gradient(135deg, var(--primary-blue) 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-primary);
    box-shadow: var(--shadow-md);
    margin: 0 auto;
    display: flex;
}

.primary-btn:disabled {
    background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
    cursor: not-allowed;
    opacity: 0.7;
}

.primary-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.primary-btn:not(:disabled):active {
    transform: translateY(0);
}

/* ========================================
   LEVEL HEADERS
   ======================================== */
.round-indicator,
.score-display,
.attempts-display,
.word-count {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-full);
    font-weight: 600;
    color: var(--dark-gray);
    font-size: 0.95rem;
}

.score-display {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

/* ========================================
   INSTRUCTION PANEL
   ======================================== */
.instruction-panel {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 2px solid #bfdbfe;
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}
.instruction-panel:hover {
    cursor: pointer;
    transform: scale(1.01);
}

.instruction-icon {
    font-size: 1.5rem;
    color: var(--primary-blue);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.instruction-text {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin: 0;
    flex: 1;
}

.instruction-text-alt {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin: 0;
    flex: 1;
}

/* ========================================
   LEVEL 1: GUIDED PRACTICE
   ======================================== */
.syllable-practice-area {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.blend-display-large {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.syllable-list {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.syllable-item {
    display: flex;
    align-items: center;
    gap: 50px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-gray);
    border: 3px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 150px;
    position: relative;
}

.syllable-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f1f5f9;
}

.syllable-item.active {
    background: white;
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
    opacity: 1;
}

.syllable-item.active:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.syllable-item.completed {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: var(--accent-green);
}

.blend-part {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-gray);
}

.vowel-part {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-pink);
    transition: transform 0.8s ease-in-out;
}

/* Progress Dots */
.progress-panel {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.progress-dots {
    display: flex;
    gap: var(--spacing-md);
}

.dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #e2e8f0;
    transition: all var(--transition-normal);
    position: relative;
}

.dot.active {
    background: var(--primary-blue);
    transform: scale(1.2);
}

.dot.completed {
    background: var(--accent-green);
}

.dot.completed::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
}

/* ========================================
   LEVEL 2: VOWEL MATCHING
   ======================================== */
.matching-area {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    min-height: 300px;
}

.blend-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.blend-text {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--dark-gray);
    letter-spacing: 2px;
}

.vowel-dropzone {
    width: 80px;
    height: 80px;
    border: 3px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    background: #f8fafc;
    transition: all var(--transition-normal);
}

.vowel-dropzone.hover {
    background: #e0f2fe;
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.vowel-dropzone.filled {
    background: white;
    border-style: solid;
}

.vowel-dropzone.correct {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: var(--accent-green);
    animation: correctPulse 0.5s ease-out;
}

.vowel-dropzone.incorrect {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-color: var(--danger);
    animation: shake 0.5s ease-out;
}

@keyframes correctPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.vowel-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.vowel-draggable {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, white 0%, #f1f5f9 100%);
    border: 3px solid var(--primary-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
    cursor: move;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.vowel-draggable:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.vowel-draggable.dragging {
    opacity: 0.5;
    transform: scale(0.9);
}

.vowel-draggable.used {
    display: none !important;
}

/* ========================================
   LEVEL 3: WORD BUILDING
   ======================================== */
.word-building-area {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.emoji-hint {
    font-size: 3rem;
}

.word-target {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-gray);
    letter-spacing: 1px;
}

.word-construction {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.blend-input {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: #f8fafc;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.blend-input.has-blend {
    border-color: var(--primary-blue);
    background: #eff6ff;
}

.blend-input.error {
    border-color: var(--danger);
    animation: shake 0.5s ease-out;
}

.consonant-select,
.vowel-select {
    width: 60px;
    padding: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    border: 2px solid #cbd5e1;
    border-radius: var(--radius-md);
    background: white;
    color: var(--dark-gray);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    font-family: var(--font-primary);
}

.consonant-select:hover,
.vowel-select:hover {
    border-color: var(--primary-blue);
}

.consonant-select:focus,
.vowel-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.vowel-input {
    padding: var(--spacing-sm);
    background: #fef3c7;
    border-radius: var(--radius-md);
}

.vowel-select {
    border-color: var(--golden-dark);
}

.vowel-select.error {
    border-color: var(--danger);
    animation: shake 0.5s ease-out;
}

.word-ending {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--medium-gray);
    padding: var(--spacing-sm) var(--spacing-md);
    background: #f1f5f9;
    border-radius: var(--radius-md);
}
/* Level 3 Drag and Drop Styles */
.word-construction-drag {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    min-height: 80px;
}

.blend-dropzone,
#vowel-dropzone-l3 {
    width: 100px;
    height: 70px;
    border: 3px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    background: #f8fafc;
    transition: all var(--transition-normal);
}

.dropzone-label {
    color: #94a3b8;
    font-size: 0.9rem;
    font-weight: 500;
}

.blend-dropzone.filled,
#vowel-dropzone-l3.filled {
    border-style: solid;
    background: white;
}

.blend-dropzone.hover,
#vowel-dropzone-l3.hover {
    background: #e0f2fe;
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.blend-dropzone.correct,
#vowel-dropzone-l3.correct {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: var(--accent-green);
}

.blend-dropzone.incorrect,
#vowel-dropzone-l3.incorrect {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-color: var(--danger);
}

.draggable-options {
    display: flex;
    justify-content: space-around;
    gap: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: #f1f5f9;
    border-radius: var(--radius-lg);
}

.blends-section,
.vowels-section {
    flex: 1;
}

.options-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.blend-options,
.vowel-options-l3 {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.blend-draggable,
.vowel-draggable-l3 {
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-md);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-gray);
    cursor: move;
    transition: all var(--transition-normal);
}

.blend-draggable:hover,
.vowel-draggable-l3:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.blend-draggable.used,
.vowel-draggable-l3.used {
    display: none !important;
}

.replay-audio-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    margin-left: auto;
}

/* ========================================
   FEEDBACK MESSAGES
   ======================================== */
.feedback-message {
    display: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    font-weight: 700;
    font-size: 1.1rem;
    margin: var(--spacing-lg) auto;
    max-width: 500px;
    animation: slideInUp 0.3s ease-out;
}

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

.feedback-message.success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 2px solid #10b981;
}

.feedback-message.error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border: 2px solid #ef4444;
}

.feedback-message.warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    border: 2px solid #f59e0b;
}

.feedback-message.info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border: 2px solid #3b82f6;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .lesson-container {
        padding: var(--spacing-md);
    }
    
    .screen-header h2 {
        font-size: 1.5rem;
    }
    
    .blend-grid {
        grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .blend-card {
        min-height: 100px;
        padding: var(--spacing-sm);
    }
    
    .blend-display {
        font-size: 1.5rem;
    }
    
    /* Level 1 Mobile */
    .syllable-practice-area {
        padding: var(--spacing-lg);
    }
    
    .blend-display-large {
        font-size: 2.5rem;
    }
    
    .syllable-list {
        gap: var(--spacing-md);
    }
    
    .syllable-item {
        min-width: 130px;
        padding: var(--spacing-md);
        gap: 30px;
    }
    
    .blend-part,
    .vowel-part {
        font-size: 1.5rem;
    }
    
    /* Level 2 Mobile */
    .matching-area {
        padding: var(--spacing-lg);
    }
    
    .blend-text {
        font-size: 2rem;
    }
    
    .vowel-dropzone {
        width: 70px;
        height: 70px;
    }
    
    .vowel-draggable {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    /* Level 3 Mobile */
    .emoji-hint {
        font-size: 2.5rem;
    }
    
    .word-target {
        font-size: 1.5rem;
    }
    
    .word-construction {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .consonant-select,
    .vowel-select {
        width: 50px;
        font-size: 1.2rem;
    }
    
    .word-ending {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .blend-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .syllable-item {
        flex-direction: column;
        gap: var(--spacing-sm);
        min-width: 100px;
    }
    
    .vowel-options {
        gap: var(--spacing-sm);
    }
    
    .primary-btn {
        width: 100%;
        max-width: 300px;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
button:focus-visible,
.blend-card:focus-visible,
.syllable-item:focus-visible,
select:focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .vowel-part {
        transition: none !important;
    }
}

/* High contrast */
@media (prefers-contrast: high) {
    .blend-card,
    .syllable-item,
    .vowel-draggable,
    .vowel-dropzone {
        border-width: 3px;
    }
    
    .feedback-message {
        border-width: 3px;
    }
}

/* Print styles */
@media print {
    .lesson-container {
        background: white !important;
    }
    
    .primary-btn,
    .instruction-icon {
        display: none !important;
    }
    
    * {
        box-shadow: none !important;
    }
}