/* --- Estilos Globales y Variables --- */
:root {
    --primary-dark: #2c3e50;
    --primary-teal: #1abc9c;
    --primary-teal-dark: #16a085;
    --color-correct: #27ae60;
    --color-wrong: #e74c3c;
    --light-grey: #f0f2f5;
    --text-dark: #34495e;
    --text-light: #ffffff;
    
    --font-english: 'Poppins', sans-serif;
    --font-urdu: 'Noto Nastaliq Urdu', serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-english);
    background-color: var(--light-grey);
    color: var(--text-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.hidden {
    display: none !important;
}

/* --- Contenedor Principal de la Aplicación (Efecto de Tarjeta) --- */
.app-container {
    width: 100%;
    max-width: 900px;
    background-color: var(--text-light);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* --- Encabezado y Pie de Página (Pantalla de Inicio) --- */
.main-header, .main-footer {
    background-color: var(--primary-dark);
    color: var(--text-light);
    padding: 20px;
    text-align: center;
}

.main-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.main-footer p {
    font-size: 14px;
    font-weight: 400;
}

/* --- Cuerpo de la Pantalla de Inicio --- */
.login-body {
    padding: 40px 20px;
    text-align: center;
}

.urdu-title {
    font-family: var(--font-urdu);
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 40px;
}

.input-group {
    margin-bottom: 25px;
}

.urdu-label {
    font-family: var(--font-urdu);
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    display: block;
    margin-bottom: 10px;
}

.styled-entry {
    font-family: var(--font-english);
    font-size: 16px;
    width: 100%;
    max-width: 350px;
    padding: 12px;
    text-align: center;
    border: 1px solid #bdc3c7;
    border-radius: 8px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.styled-entry:focus {
    outline: none;
    border-color: var(--primary-teal);
    box-shadow: 0 0 0 3px rgba(26, 188, 156, 0.2);
}

/* --- Botón de Acción Principal (Verde) --- */
.action-btn {
    font-family: var(--font-english);
    background-color: var(--primary-teal);
    color: var(--text-light);
    border: none;
    border-radius: 50px; /* Forma de píldora */
    padding: 15px 40px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 20px;
}

.action-btn:hover {
    background-color: var(--primary-teal-dark);
    transform: translateY(-2px);
}

/* --- Encabezado de la Pantalla del Cuestionario --- */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--primary-dark);
    color: var(--text-light);
    padding: 15px 25px;
}
.welcome-section p {
    font-size: 16px;
    margin: 0;
}
.welcome-section h2 {
    font-family: var(--font-urdu);
    font-size: 24px;
    margin: 0;
}

.view-record-btn {
    background-color: var(--text-light);
    color: var(--primary-dark);
    border: 1px solid var(--text-light);
    border-radius: 8px;
    padding: 8px 15px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}
.view-record-btn:hover {
    background-color: transparent;
    color: var(--text-light);
}

/* --- Cuerpo de la Pantalla del Cuestionario --- */
.quiz-body {
    padding: 20px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

/* --- Barra de Desplazamiento Personalizada --- */
.quiz-body::-webkit-scrollbar {
    width: 8px;
}
.quiz-body::-webkit-scrollbar-track {
    background: var(--light-grey);
}
.quiz-body::-webkit-scrollbar-thumb {
    background-color: #bdc3c7;
    border-radius: 10px;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    font-size: 16px;
    font-weight: 600;
}
#score-label {
    color: var(--color-correct);
}

.question-container {
    padding: 20px 10px;
    text-align: center;
}
#question-eng {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}
#question-urdu {
    font-family: var(--font-urdu);
    font-size: 30px;
    font-weight: 700;
}

/* --- Botones de Opción (Cuestionario) --- */
.options-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}
.option-btn {
    width: 100%;
    max-width: 500px;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    background-color: var(--text-light);
    color: var(--primary-teal-dark);
    border: 2px solid var(--primary-teal);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.option-btn:hover:not(:disabled) {
    background-color: var(--primary-teal);
    color: var(--text-light);
    transform: translateY(-2px);
}
.option-btn:disabled {
    cursor: not-allowed;
    opacity: 0.9;
}
.option-btn.correct {
    background-color: var(--color-correct) !important;
    border-color: var(--color-correct) !important;
    color: var(--text-light) !important;
}
.option-btn.wrong {
    background-color: var(--color-wrong) !important;
    border-color: var(--color-wrong) !important;
    color: var(--text-light) !important;
}

/* --- Etiqueta de Retroalimentación --- */
.feedback-container {
    text-align: center;
    padding: 20px;
    min-height: 60px;
}
#feedback-label {
    font-size: 18px;
    font-weight: 600;
}
#feedback-label.correct { color: var(--color-correct); }
#feedback-label.wrong { color: var(--color-wrong); }

/* --- Estilos de los Modals (Pop-ups) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}
.modal-content {
    background-color: white;
    padding: 30px 40px;
    border-radius: 12px;
    text-align: center;
    width: 100%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
.modal-content h2 {
    font-size: 24px;
    color: var(--primary-dark);
    margin-bottom: 15px;
}
.modal-content p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 25px;
}
.modal-content #record-percentage {
    font-weight: 700;
    font-size: 18px;
    color: var(--primary-dark);
}
.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 32px;
    color: #aaa;
    cursor: pointer;
    transition: color 0.3s;
}
.close-btn:hover { color: var(--text-dark); }

.action-btn-secondary {
    font-family: var(--font-english);
    background-color: transparent;
    color: var(--primary-dark);
    border: 2px solid var(--primary-dark);
    border-radius: 50px;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}
.action-btn-secondary:hover {
    background-color: var(--primary-dark);
    color: var(--text-light);
}