/*
 * Alfabeto Aprender - Jogo Educativo Interativo
 * Autor: xkyriver
 * Versão: 1.0.0
 * Licença: MIT
 * 
 * Estilos CSS para interface responsiva e amigável para crianças
 */

/* Reset e configurações globais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #FFE5B4 0%, #FFCCCB 50%, #E0BBE4 100%);
    min-height: 100vh;
    padding: 10px;
    overflow-x: hidden;
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    min-height: calc(100vh - 20px);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: #4A90E2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 15px;
}

/* Barra de progresso */
.progress-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.progress-bar {
    width: 300px;
    max-width: 80vw;
    height: 20px;
    background: #E0E0E0;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid #4A90E2;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #81C784);
    width: 0%;
    transition: width 0.5s ease;
}

#progressText {
    font-size: 1.1rem;
    font-weight: bold;
    color: #4A90E2;
}

/* Área de instruções */
.instruction-area {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #FFF3E0, #FFECB3);
    border-radius: 15px;
    border: 3px solid #FFB74D;
}

.current-letter {
    margin-bottom: 15px;
}

.letter-display {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: bold;
    color: #E91E63;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.2);
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.instruction-text {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: #333;
    margin-bottom: 15px;
    line-height: 1.4;
}

.speak-button {
    background: linear-gradient(135deg, #9C27B0, #E1BEE7);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(156, 39, 176, 0.3);
}

.speak-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(156, 39, 176, 0.4);
}

/* Grid de letras */
.letters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 15px;
    max-width: 800px;
    margin: 0 auto 30px;
    padding: 20px;
}

.letter-card {
    aspect-ratio: 1;
    background: linear-gradient(135deg, #4CAF50, #81C784);
    border: 3px solid #2E7D32;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: bold;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.letter-card:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.letter-card:active {
    transform: translateY(-2px) scale(0.95);
}

.letter-card.correct {
    animation: correctAnswer 0.6s ease;
    background: linear-gradient(135deg, #FFD700, #FFA000);
    border-color: #FF6F00;
}

@keyframes correctAnswer {
    0% { transform: scale(1); }
    25% { transform: scale(1.2) rotate(5deg); }
    50% { transform: scale(1.3) rotate(-5deg); }
    75% { transform: scale(1.1); }
    100% { transform: scale(0); opacity: 0; }
}

.letter-card.wrong {
    animation: wrongAnswer 0.5s ease;
}

@keyframes wrongAnswer {
    0%, 50%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.letter-card.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0);
}

/* Controles */
.controls {
    text-align: center;
    margin-top: 30px;
}

.start-button, .reset-button {
    background: linear-gradient(135deg, #FF5722, #FF8A65);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(255, 87, 34, 0.3);
    margin: 0 10px;
}

.start-button:hover, .reset-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 87, 34, 0.4);
}

/* Overlay de celebração */
.celebration-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.celebration-content {
    background: linear-gradient(135deg, #FFFFFF, #F8F8F8);
    padding: 40px;
    border-radius: 25px;
    text-align: center;
    max-width: 90vw;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    animation: celebrationBounce 0.8s ease;
}

@keyframes celebrationBounce {
    0% { transform: scale(0.3) rotate(-10deg); }
    50% { transform: scale(1.1) rotate(5deg); }
    100% { transform: scale(1) rotate(0deg); }
}

.celebration-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: #4CAF50;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.celebration-content p {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    color: #333;
    margin-bottom: 10px;
}

.celebration-emoji {
    font-size: clamp(2rem, 4vw, 3rem);
    margin: 20px 0;
    animation: sparkle 1s infinite alternate;
}

@keyframes sparkle {
    from { text-shadow: 0 0 10px #FFD700; }
    to { text-shadow: 0 0 20px #FFD700, 0 0 30px #FFA000; }
}

.celebration-button {
    background: linear-gradient(135deg, #4CAF50, #81C784);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.3);
    margin-top: 20px;
}

.celebration-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.4);
}

/* Feedback visual */
.feedback {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: bold;
    pointer-events: none;
    z-index: 999;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
}

.feedback.correct {
    color: #4CAF50;
    animation: feedbackCorrect 1s ease;
}

.feedback.wrong {
    color: #F44336;
    animation: feedbackWrong 1s ease;
}

@keyframes feedbackCorrect {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(1) translateY(-50px); }
}

@keyframes feedbackWrong {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(1); }
}

/* Responsividade para tablets */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        border-radius: 15px;
    }
    
    .letters-grid {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 10px;
        padding: 15px;
    }
    
    .instruction-area {
        padding: 15px;
        margin-bottom: 20px;
    }
    
    .progress-container {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    
    .container {
        padding: 10px;
    }
    
    .letters-grid {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
        gap: 8px;
        padding: 10px;
    }
}

/* Melhorar touch targets para tablets */
@media (hover: none) and (pointer: coarse) {
    .letter-card {
        min-height: 80px;
        min-width: 80px;
    }
    
    .start-button, .reset-button, .celebration-button, .speak-button {
        min-height: 50px;
        padding: 15px 25px;
    }
}