/*
============================================================	
	Author: Paolo Santos	
============================================================
*/

:root {
    --primary-color: #4a90e2;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --neutral-dark: #2c3e50;
    --neutral-light: #f8f9fa;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.quiz-container {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 550px;
    padding: 30px;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--neutral-light);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.quiz-header h2 {
    color: var(--neutral-dark);
    font-size: 1.4rem;
}

#progress {
    font-weight: 600;
    color: #7f8c8d;
}

.question {
    font-size: 1.25rem;
    color: var(--neutral-dark);
    margin-bottom: 25px;
    line-height: 1.5;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.option-btn {
    background-color: var(--neutral-light);
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 14px 20px;
    text-align: left;
    font-size: 1rem;
    color: var(--neutral-dark);
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-btn:hover:not([disabled]) {
    background-color: #edf2f7;
    border-color: var(--primary-color);
}

.option-btn[disabled] {
    cursor: not-allowed;
}

/* Status colors added dynamically via JS */
.option-btn.correct {
    background-color: var(--success-color) !important;
    border-color: var(--success-color) !important;
    color: #ffffff;
}

.option-btn.incorrect {
    background-color: var(--error-color) !important;
    border-color: var(--error-color) !important;
    color: #ffffff;
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

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

.next-btn:hover {
    background-color: #357abd;
}

.restart-btn {
    background-color: var(--success-color);
    color: white;
    margin-top: 20px;
}

.restart-btn:hover {
    background-color: #27ae60;
}

#result-box {
    text-align: center;
    padding: 20px 0;
}

#result-box h2 {
    color: var(--neutral-dark);
    margin-bottom: 15px;
}

#score-display {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 15px 0;
}

.hide {
    display: none !important;
}