/* Variables CSS - Esquema Verde */
:root {
    --primary-color: #77dd77;
    --secondary-color: #a8e6cf;
    --accent-color: #dcedc1;
    --light-color: #e8f5e9;
    --text-color: #2e7d32;
    --white: #ffffff;
    --dark-green: #388e3c;
    --correct-color: #4caf50;
    --incorrect-color: #f44336;
    --light-bg: #f5f5f5;
}

/* Reset y estilos generales */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
    padding-top: 70px; /* Espacio para el header fijo */
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 0 10%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-bottom: 2px solid var(--white);
    transition: all 0.3s ease;
    height: 70px;
}

.header:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
}

.navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.header .navigation ul li {
    float: left;
    position: relative;
}

.header .navigation ul li a {
    font-size: 16px;
    font-weight: 500;
    color: var(--white);
    text-decoration: none;
    padding: 22px 20px;
    display: block;
    transition: all 0.3s ease;
}

.header .navigation ul li a:hover {
    background-color: rgba(255, 255, 255, 0.733);
    transform: translateY(-2px);
    color: var(--text-color);
}

#toggle,
.header label {
    display: none;
    cursor: pointer;
}

.menu {
    width: 28px;
    height: 28px;
    filter: brightness(0) invert(1);
}

@media (max-width: 950px) {
    .header label {
        display: initial;
    }

    .header {
        padding: 15px 10%;
    }

    .header .navigation {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-color);
        display: none;
        border-radius: 0 0 12px 12px;
    }

    .header .navigation ul li {
        width: 100%;
    }

    .header .navigation ul li a {
        padding: 12px 20px;
    }

    #toggle:checked ~ .navigation {
        display: block;
        animation: slideDown 0.4s ease-out;
    }
}

/* Animación para el menú desplegable */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Contenedor principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    padding: 30px;
    margin-top: 20px;
    margin-bottom: 30px;
    border: 2px solid var(--white);
}

/* Encabezado del juego */
.game-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
}

.game-header h1 {
    font-family: 'Fredoka One', cursive;
    color: var(--dark-green);
    font-size: 2.8rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 0 var(--accent-color);
}

.game-header .subtitle {
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 400;
    background-color: var(--light-color);
    padding: 10px 20px;
    border-radius: 10px;
    display: inline-block;
}

/* Área del juego */
.game-area {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.sentences-container {
    flex: 1;
    min-width: 300px;
    background-color: var(--light-color);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--secondary-color);
}

.sentences-intro {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px dashed var(--primary-color);
}

.sentences-intro h2 {
    color: var(--dark-green);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.sentences-intro p {
    color: var(--text-color);
    font-size: 1.1rem;
}

.sentences-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.sentence-item {
    background-color: var(--white);
    border-radius: 10px;
    padding: 18px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-left: 4px solid var(--secondary-color);
}

.sentence-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary-color);
}

.sentence-number {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    font-weight: bold;
    margin-right: 15px;
    font-size: 0.9rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.sentence-text {
    display: inline-block;
    font-size: 1.3rem;
    color: var(--text-color);
    font-weight: 500;
}

.blank {
    display: inline-block;
    min-width: 140px;
    height: 42px;
    border: 2px dashed var(--accent-color);
    border-radius: 8px;
    margin: 0 8px;
    text-align: center;
    line-height: 38px;
    font-weight: bold;
    color: var(--dark-green);
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--white);
    vertical-align: middle;
    padding: 0 12px;
    font-size: 1rem;
}

.blank:hover {
    background-color: var(--light-color);
    border-style: solid;
    border-color: var(--primary-color);
}

.blank.selected {
    background-color: var(--accent-color);
    border: 2px solid var(--primary-color);
    color: var(--dark-green);
}

.blank.correct {
    background-color: var(--correct-color);
    color: var(--white);
    border-color: var(--dark-green);
}

.blank.incorrect {
    background-color: var(--incorrect-color);
    color: var(--white);
    border-color: #c62828;
}

.sentence-feedback {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
    display: none;
    font-weight: 500;
}

.sentence-feedback.correct {
    background-color: #e8f5e9;
    color: var(--dark-green);
    display: block;
    border-left: 3px solid var(--correct-color);
}

.sentence-feedback.incorrect {
    background-color: #ffebee;
    color: #c62828;
    display: block;
    border-left: 3px solid var(--incorrect-color);
}

/* Controles */
.controls {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.verbs-panel, .score-panel {
    background-color: var(--light-color);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--secondary-color);
}

.verbs-panel h3, .score-panel h3 {
    color: var(--dark-green);
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

.verbs-instruction {
    background-color: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.verbs-instruction p {
    color: var(--dark-green);
    font-weight: 600;
    font-size: 1.1rem;
    margin: 0 0 5px 0;
}

.verb-example {
    color: var(--text-color);
    font-weight: 400;
    font-size: 0.95rem;
    font-style: italic;
}

.verbs-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 25px;
}

.verb-option {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 10px;
    padding: 14px 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
}

.verb-option:hover {
    background-color: var(--dark-green);
    transform: translateY(-3px);
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.15);
}

.verb-option.used {
    background-color: #a5d6a7;
    color: #666;
    cursor: not-allowed;
    opacity: 0.7;
    transform: none;
    box-shadow: none;
}

.buttons-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn {
    display: block;
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.check-btn {
    background-color: var(--correct-color);
    color: var(--white);
}

.check-btn:hover {
    background-color: #43a047;
}

.reset-btn {
    background-color: var(--primary-color);
    color: var(--white);
}

.reset-btn:hover {
    background-color: #66bb6a;
}

.answers-btn {
    background-color: var(--accent-color);
    color: var(--dark-green);
}

.answers-btn:hover {
    background-color: #c5e1a5;
}

/* Panel de puntuación */
.score-display {
    text-align: center;
    margin-bottom: 25px;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-green) 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 2.5rem;
    font-weight: bold;
    box-shadow: 0 8px 20px rgba(119, 221, 119, 0.3);
    border: 5px solid var(--white);
}

.score-text {
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 600;
}

.progress-container {
    margin-bottom: 25px;
}

.progress-bar {
    width: 100%;
    height: 14px;
    background-color: #e0e0e0;
    border-radius: 7px;
    overflow: hidden;
    margin-bottom: 10px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--dark-green));
    border-radius: 7px;
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    text-align: center;
    font-weight: 600;
    color: var(--dark-green);
    font-size: 1rem;
}

.time-container {
    background-color: var(--white);
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.time-container p {
    color: var(--text-color);
    font-weight: 500;
    margin: 0;
}

#timer {
    font-weight: bold;
    color: var(--dark-green);
    font-size: 1.1rem;
}

.feedback {
    background-color: var(--white);
    border-radius: 10px;
    padding: 20px;
    border-left: 5px solid var(--primary-color);
    min-height: 80px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
}

.feedback p {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0;
}

.feedback.correct {
    border-left-color: var(--correct-color);
    background-color: #e8f5e9;
}

.feedback.incorrect {
    border-left-color: var(--incorrect-color);
    background-color: #ffebee;
}

/* Instrucciones */
.instructions {
    background-color: var(--light-color);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--secondary-color);
}

.instructions h3 {
    color: var(--dark-green);
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.instruction-step {
    background-color: var(--white);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.instruction-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.step-number {
    display: inline-block;
    width: 35px;
    height: 35px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    text-align: center;
    line-height: 35px;
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.instruction-step p {
    color: var(--text-color);
    font-weight: 500;
    margin: 0;
}

.answers-section {
    background-color: var(--white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
}

.answers-section h4 {
    color: var(--dark-green);
    font-size: 1.3rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.answers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.answer-item {
    background-color: var(--light-color);
    padding: 12px 15px;
    border-radius: 8px;
    color: var(--text-color);
    font-weight: 500;
    border-left: 3px solid var(--primary-color);
}

/* Pie de página */
footer {
    text-align: center;
    padding-top: 30px;
    border-top: 2px solid var(--primary-color);
    color: var(--text-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 25px;
    text-align: left;
}

.footer-section h4 {
    color: var(--dark-green);
    font-size: 1.2rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section p {
    color: var(--text-color);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--dark-green);
    text-decoration: underline;
}

.credits {
    font-size: 0.85rem;
    color: #666;
    margin-top: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .header {
        height: 60px;
        padding: 0 5%;
    }
    
    .container {
        padding: 20px;
        margin-top: 10px;
        margin-bottom: 20px;
        border-radius: 15px;
    }
    
    .game-header h1 {
        font-size: 2.2rem;
    }
    
    .game-area {
        flex-direction: column;
    }
    
    .verbs-list {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .score-circle {
        width: 100px;
        height: 100px;
        font-size: 2rem;
    }
    
    .instructions-grid {
        grid-template-columns: 1fr;
    }
    
    .answers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .game-header h1 {
        font-size: 1.8rem;
    }
    
    .sentence-text {
        font-size: 1.1rem;
    }
    
    .blank {
        min-width: 110px;
        height: 38px;
        line-height: 34px;
    }
    
    .verbs-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .score-circle {
        width: 80px;
        height: 80px;
        font-size: 1.8rem;
    }
    
    .answers-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}