:root {
    --primary-dark: #1b5e20;
    --primary-medium: #2e7d32;
    --primary-light: #4caf50;
    --primary-extra-light: #e8f5e9;
    --background-light: #f8faf8;
    --text-dark: #1a1a1a;
    --text-medium: #333;
    --text-light: #666;
    --border-radius: 16px;
    --shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --white: #ffffff;
    --dark-bg: #121e12;
    --dark-card: #1a2c1a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Tajawal', sans-serif;
}

body {
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-image: linear-gradient(to bottom, #ffffff, #f0f7f0);
    padding: 20px;
    position: relative;
    transition: var(--transition);
}

body.dark-mode {
    background-color: var(--dark-bg);
    background-image: none;
    color: #e0f0e0;
}

.theme-toggle {
    position: absolute;
    top: 25px;
    left: 25px;
    z-index: 100;
}

#themeBtn {
    background: var(--primary-medium);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

#themeBtn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.header {
    text-align: center;
    margin-bottom: 30px;
    width: 100%;
    transition: var(--transition);
}

.logo {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary-dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: var(--transition);
}

body.dark-mode .logo {
    color: #a5d6a7;
}

.logo i {
    color: var(--primary-medium);
}

body.dark-mode .logo i {
    color: #a5d6a7;
}

.tagline {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    transition: var(--transition);
}

body.dark-mode .tagline {
    color: #b0bec5;
}

.container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid #e0e6e0;
    transition: var(--transition);
}

body.dark-mode .container {
    background: var(--dark-card);
    border-color: #2a3f2a;
}

.question-header {
    background: linear-gradient(to right, var(--primary-dark), var(--primary-medium));
    padding: 25px 40px;
    color: white;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.question-number {
    background: var(--white);
    color: var(--primary-medium);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-left: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}

body.dark-mode .question-number {
    background: var(--dark-card);
    color: #a5d6a7;
}

.question {
    font-size: 2rem;
    font-weight: 800;
    text-align: right;
    line-height: 1.4;
    transition: var(--transition);
}

.answer-box {
    padding: 40px;
}

.answer-point {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    border-radius: var(--border-radius);
    background: var(--background-light);
    transition: var(--transition);
}

body.dark-mode .answer-point {
    background: #1f341f;
}

.point-number {
    background: var(--primary-medium);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
    transition: var(--transition);
}

.answer-point h3 {
    color: var(--primary-dark);
    margin-bottom: 8px;
    transition: var(--transition);
}

body.dark-mode .answer-point h3 {
    color: #a5d6a7;
}

.answer-point p {
    font-size: 1.2rem;
    color: var(--text-medium);
    font-weight: 400;
    text-align: right;
    line-height: 1.8;
    transition: var(--transition);
}

body.dark-mode .answer-point p {
    color: #e0f0e0;
}

.highlight {
    background-color: var(--primary-extra-light);
    border-right: 4px solid var(--primary-medium);
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
    font-weight: 600;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.2rem;
    transition: var(--transition);
}

body.dark-mode .highlight {
    background-color: #1a2c1a;
    color: #a5d6a7;
    border-color: #4caf50;
}

.highlight i {
    font-size: 1.8rem;
}

.buttons-container {
    display: flex;
    justify-content: space-between;
    padding: 30px 40px;
    background-color: var(--background-light);
    border-top: 1px solid #e0e6e0;
    transition: var(--transition);
}

body.dark-mode .buttons-container {
    background-color: #152415;
    border-color: #2a3f2a;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    padding: 18px 35px;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: none;
    cursor: pointer;
    min-width: 200px;
    text-align: center;
}

.btn-prev {
    background-color: var(--white);
    color: var(--primary-medium);
    border: 2px solid var(--primary-medium);
    transition: var(--transition);
}

body.dark-mode .btn-prev {
    background-color: var(--dark-card);
    color: #a5d6a7;
    border-color: #4caf50;
}

.btn-prev i {
    margin-right: 10px;
}

.btn-next {
    background: linear-gradient(to right, var(--primary-medium), var(--primary-light));
    color: var(--white);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.btn-prev:hover {
    background-color: #f0f7f0;
}

body.dark-mode .btn-prev:hover {
    background-color: #1f341f;
}

.btn-next:hover {
    background: linear-gradient(to right, var(--primary-dark), var(--primary-medium));
}

.progress-container {
    padding: 0 40px 30px;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.progress-label {
    color: var(--primary-medium);
    font-weight: 600;
    font-size: 1.1rem;
    margin-left: 15px;
    min-width: 120px;
    transition: var(--transition);
}

body.dark-mode .progress-label {
    color: #a5d6a7;
}

.progress {
    flex: 1;
    height: 10px;
    background-color: #e0e6e0;
    border-radius: 5px;
    overflow: hidden;
    transition: var(--transition);
}

body.dark-mode .progress {
    background-color: #2a3f2a;
}

.progress-bar {
    height: 100%;
    width: 40%;
    background: linear-gradient(to right, var(--primary-light), var(--primary-medium));
    border-radius: 5px;
    transition: width 0.5s ease;
}

.footer {
    text-align: center;
    margin-top: 30px;
    color: var(--text-light);
    font-size: 0.9rem;
    width: 100%;
    transition: var(--transition);
}

body.dark-mode .footer {
    color: #b0bec5;
}

.footer a {
    color: var(--primary-medium);
    text-decoration: none;
    transition: var(--transition);
}

body.dark-mode .footer a {
    color: #a5d6a7;
}

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

body.dark-mode .footer a:hover {
    color: #dcedc8;
}

/* التصميم للجوال */
@media (max-width: 768px) {
    .theme-toggle {
        top: 15px;
        left: 15px;
    }
    
    #themeBtn {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    .question-header {
        padding: 20px;
        flex-direction: column;
        text-align: center;
    }
    
    .question-number {
        margin-left: 0;
        margin-bottom: 15px;
    }
    
    .question {
        font-size: 1.6rem;
    }
    
    .answer-box {
        padding: 25px;
    }
    
    .answer-point {
        padding: 15px;
        margin-bottom: 20px;
    }
    
    .answer-point p {
        font-size: 1.1rem;
    }
    
    .highlight {
        padding: 15px;
        font-size: 1.1rem;
    }
    
    .btn {
        padding: 15px 20px;
        min-width: 150px;
        font-size: 1rem;
    }
    
    .buttons-container {
        padding: 20px;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .progress-container {
        padding: 0 20px 20px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .progress-label {
        margin-left: 0;
        margin-bottom: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    .logo {
        font-size: 1.6rem;
    }
    
    .tagline {
        font-size: 0.95rem;
    }
    
    .question {
        font-size: 1.4rem;
    }
    
    .answer-box {
        padding: 20px;
    }
    
    .btn {
        width: 100%;
    }
    
    .buttons-container {
        flex-direction: column;
    }
}