/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1042 50%, #2d1b69 100%);
    color: #ffffff;
    overflow-x: hidden;
}

/* Cosmic Background Animation */
.cosmic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Cosmic Glow Effect */
.cosmic-glow {
    box-shadow: 0 0 40px rgba(102, 126, 234, 0.5),
                0 0 80px rgba(118, 75, 162, 0.3);
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}

/* Card Styles */
.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.3);
}

/* Section Title */
.section-title {
    position: relative;
    display: block;
    padding-bottom: 15px;
    text-align: center;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* All h2 headings centered */
h2 {
    text-align: center !important;
}

/* FAQ Accordion Styles */
.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.faq-question {
    cursor: pointer;
    position: relative;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    transition: transform 0.3s ease;
}

.faq-question.active::after {
    content: '−';
    transform: translateY(-50%) rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
    max-height: 500px;
    padding: 20px;
}

/* Scroll Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation */
nav {
    background: rgba(10, 14, 39, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Feature Icons */
.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: inline-block;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Quiz iframe Container */
.quiz-iframe-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 50px rgba(102, 126, 234, 0.2);
}

.quiz-iframe {
    width: 100%;
    height: 800px;
    min-height: 600px;
    border: none;
    display: block;
    background: #ffffff;
    border-radius: 16px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }

    .feature-icon {
        font-size: 36px;
    }

    .quiz-iframe-container {
        padding: 10px;
        border-radius: 16px;
    }

    .quiz-iframe {
        height: 700px;
        min-height: 500px;
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .quiz-iframe {
        height: 600px;
        min-height: 450px;
    }
}