/* ===================================
   Quiz Portal - White + Light Blue Theme
   =================================== */

:root {
    --primary-blue: #4A90E2;
    --light-blue: #E3F2FD;
    --dark-blue: #1976D2;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --text-dark: #333333;
    --text-light: #666666;
    --border-color: #E0E0E0;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ===================================
   Announcement Banner Styles
   =================================== */
.announcement-banner {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: 12px 0;
    position: relative;
    z-index: 1001;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.2);
    display: block;
    transition: all 0.3s ease;
}

/* Announcement Type Variants */
.announcement-banner.announcement-info {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
}

.announcement-banner.announcement-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
}

.announcement-banner.announcement-warning {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: var(--text-dark);
}

.announcement-banner.announcement-warning .announcement-close {
    color: var(--text-dark);
}

.announcement-banner.announcement-warning .announcement-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

.announcement-banner.announcement-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.announcement-banner.hidden {
    display: none;
}

.announcement-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    overflow: hidden;
}

.announcement-text {
    display: flex;
    align-items: center;
    flex: 1;
    font-size: 0.95rem;
    font-weight: 500;
    overflow: hidden;
    position: relative;
    min-width: 0;
}

.announcement-text-wrapper {
    display: inline-flex;
    white-space: nowrap;
    animation: scroll-horizontal 30s linear infinite;
    gap: 80px;
    will-change: transform;
}

.announcement-text-wrapper span {
    display: inline-block;
    white-space: nowrap;
}

.announcement-text:hover .announcement-text-wrapper {
    animation-play-state: paused;
}

.announcement-text i {
    font-size: 1.1rem;
    opacity: 0.9;
    flex-shrink: 0;
    margin-right: 15px;
}

@keyframes scroll-horizontal {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 40px));
    }
}

.announcement-close {
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
    flex-shrink: 0;
}

.announcement-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.announcement-close:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* Responsive Announcement */
@media (max-width: 768px) {
    .announcement-text {
        font-size: 0.85rem;
    }
    
    .announcement-text span {
        display: block;
    }
    
    .announcement-close {
        padding: 3px 8px;
        font-size: 1rem;
    }
}

/* ===================================
   Header Styles
   =================================== */
.main-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(74, 144, 226, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
}

.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue) !important;
    text-decoration: none;
}

.navbar-brand i {
    margin-right: 8px;
}

.navbar-nav .nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-blue) !important;
}

.nav-link.btn-login {
    background: var(--primary-blue);
    color: var(--white) !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 25px;
    margin-left: 1rem;
}

.nav-link.btn-login:hover {
    background: var(--dark-blue);
    color: var(--white) !important;
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    background-image: url('../girl.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
    min-height: 600px;
}

.hero-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* background: linear-gradient(135deg, rgba(74, 144, 226, 0.85) 0%, rgba(25, 118, 210, 0.75) 100%); */
    z-index: 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
    z-index: 0;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-title i {
    color: #FFD700;
    margin-right: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-image {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-image i {
    font-size: 20rem;
    color: var(--primary-blue);
    opacity: 0.2;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Hero Carousel Section
   =================================== */
.hero-carousel-section {
    position: relative;
    overflow: hidden;
}

.hero-carousel-section .carousel {
    position: relative;
}

.hero-carousel-section .carousel-item {
    position: relative;
    height: 500px;
}

.hero-carousel-section .carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* background: linear-gradient(135deg, rgba(74, 144, 226, 0.8) 0%, rgba(25, 118, 210, 0.7) 100%); */
    z-index: 1;
}

.hero-carousel-section .carousel-caption {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 40px 20px 400px;
    text-align: center;
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.hero-carousel-section .carousel-caption .hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white) !important;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 3;
    display: block;
    width: 100%;
}

.hero-carousel-section .carousel-caption .hero-title i {
    color: #FFD700;
    margin-right: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-carousel-section .carousel-caption .hero-subtitle {
    font-size: 1.25rem;
    color: var(--white) !important;
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8), 0 0 8px rgba(0, 0, 0, 0.5);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 3;
    display: block;
    width: 100%;
}

.hero-carousel-section .carousel-caption .hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.4s both;
    position: relative;
    z-index: 3;
}

.hero-carousel-section .carousel-control-prev,
.hero-carousel-section .carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.8;
    transition: all 0.3s ease;
    z-index: 3;
}

.hero-carousel-section .carousel-control-prev {
    left: 20px;
}

.hero-carousel-section .carousel-control-next {
    right: 20px;
}

.hero-carousel-section .carousel-control-prev:hover,
.hero-carousel-section .carousel-control-next:hover {
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 1;
}

.hero-carousel-section .carousel-indicators {
    bottom: 20px;
    z-index: 3;
}

.hero-carousel-section .carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.8);
    margin: 0 5px;
    transition: all 0.3s ease;
}

.hero-carousel-section .carousel-indicators button.active {
    background-color: var(--white);
    border-color: var(--white);
    width: 30px;
    border-radius: 6px;
}

/* ===================================
   Statistics Section
   =================================== */
.stats-section {
    background: linear-gradient(135deg, #262728 0%, #147af3 100%);
    padding: 60px 0;
    margin: 0;
}

.stat-card {
    text-align: center;
    color: var(--white);
    padding: 30px 20px;
    animation: fadeInUp 0.6s ease-out;
}

.stat-card i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
}

/* ===================================
   Features Section
   =================================== */
.features-section {
    padding: 80px 0;
    background: var(--white);
}

.section-header {
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
}

.feature-card {
    background: var(--white);
    border: 2px solid var(--light-blue);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.feature-icon i {
    font-size: 2.5rem;
    color: var(--primary-blue);
}

.feature-card:hover .feature-icon {
    background: var(--primary-blue);
    transform: scale(1.1);
}

.feature-card:hover .feature-icon i {
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===================================
   Quizzes Section
   =================================== */
.quizzes-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.quiz-card {
    background: var(--white);
    border: 2px solid var(--light-blue);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
}

.quiz-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.15);
}

.quiz-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.quiz-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 15px;
    margin-top: 10px;
}

.quiz-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.quiz-meta span {
    color: var(--text-light);
    font-size: 0.9rem;
}

.quiz-meta i {
    color: var(--primary-blue);
    margin-right: 5px;
}

.quiz-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works-section {
    padding: 80px 0;
    background: var(--white);
}

.step-card {
    text-align: center;
    padding: 40px 20px;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.step-card:hover .step-number {
    background: var(--primary-blue);
    color: var(--white);
    transform: scale(1.1);
}

.step-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.step-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===================================
   Students Carousel Section
   =================================== */
.students-carousel-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.students-carousel-wrapper {
    position: relative;
    padding: 20px 0;
}

.student-card {
    text-align: center;
    padding: 15px;
    transition: transform 0.3s ease;
}

.student-card:hover {
    transform: translateY(-5px);
}

.student-photo {
    width: 120px;
    height: 120px;
    margin: 0 auto 15px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-blue);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.student-card:hover .student-photo {
    border-color: var(--dark-blue);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
    transform: scale(1.05);
}

.student-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.student-name h6 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#studentsCarousel .carousel-control-prev,
#studentsCarousel .carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.8;
    transition: all 0.3s ease;
}

#studentsCarousel .carousel-control-prev {
    left: -25px;
}

#studentsCarousel .carousel-control-next {
    right: -25px;
}

#studentsCarousel .carousel-control-prev:hover,
#studentsCarousel .carousel-control-next:hover {
    opacity: 1;
    background-color: var(--dark-blue);
    transform: translateY(-50%) scale(1.1);
}

#studentsCarousel .carousel-control-prev-icon,
#studentsCarousel .carousel-control-next-icon {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .students-carousel-section {
        padding: 60px 0;
    }
    
    .student-photo {
        width: 100px;
        height: 100px;
    }
    
    .student-name h6 {
        font-size: 0.85rem;
    }
    
    #studentsCarousel .carousel-control-prev {
        left: -15px;
    }
    
    #studentsCarousel .carousel-control-next {
        right: -15px;
    }
    
    #studentsCarousel .carousel-control-prev,
    #studentsCarousel .carousel-control-next {
        width: 40px;
        height: 40px;
    }
}

/* ===================================
   Pricing Section
   =================================== */
.pricing-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.pricing-section .row {
    margin-left: -15px;
    margin-right: -15px;
}

.pricing-section .row > [class*="col-"] {
    padding-left: 15px;
    padding-right: 15px;
    margin-bottom: 30px;
    display: flex;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--light-blue);
    border-radius: 12px;
    padding: 30px 25px 25px;
    transition: all 0.3s ease;
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.pricing-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.15);
}

.pricing-card.featured {
    border-color: var(--primary-blue);
    border-width: 3px;
    padding-top: 40px;
}

.pricing-card.featured:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.25);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: var(--white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    white-space: nowrap;
    z-index: 10;
}

.pricing-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--light-blue);
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 15px;
    line-height: 1.2;
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    flex-wrap: nowrap;
}

.pricing-amount .currency {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-right: 2px;
}

.pricing-amount .amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    line-height: 1;
}

.pricing-amount .period {
    font-size: 1rem;
    color: var(--text-light);
    margin-left: 5px;
}

.pricing-features {
    flex: 1 1 auto;
    margin-bottom: 20px;
}

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

.pricing-features ul li {
    padding: 8px 0;
    color: var(--text-dark);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.4;
    font-size: 0.95rem;
}

.pricing-features ul li i {
    color: var(--primary-blue);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 3px;
}

.pricing-footer {
    margin-top: auto;
    padding-top: 15px;
}

.pricing-footer .btn {
    padding: 10px 25px;
    font-weight: 600;
    width: 100%;
    font-size: 0.95rem;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    padding: 80px 0;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* ===================================
   Footer Styles
   =================================== */
.main-footer {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-widget h3,
.footer-widget h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-widget h3 i {
    color: var(--light-blue);
    margin-right: 8px;
}

.footer-widget p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-widget ul {
    list-style: none;
    padding: 0;
}

.footer-widget ul li {
    margin-bottom: 10px;
}

.footer-widget ul li a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-widget ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.contact-info i {
    margin-right: 10px;
    color: var(--light-blue);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   Buttons
   =================================== */
.btn-primary {
    background: var(--primary-blue);
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.btn-outline-primary {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image i {
        font-size: 15rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-image i {
        font-size: 10rem;
    }
    
    .hero-carousel-section .carousel-item {
        height: 400px;
    }
    
    .hero-carousel-section .carousel-caption .hero-title {
        font-size: 2rem;
    }
    
    .hero-carousel-section .carousel-caption .hero-subtitle {
        font-size: 1.1rem;
        padding: 0 20px;
    }
    
    .hero-carousel-section .carousel-control-prev,
    .hero-carousel-section .carousel-control-next {
        width: 40px;
        height: 40px;
    }
    
    .hero-carousel-section .carousel-control-prev {
        left: 10px;
    }
    
    .hero-carousel-section .carousel-control-next {
        right: 10px;
    }
    
    .stats-section {
        padding: 40px 0;
    }
    
    .stat-card h3 {
        font-size: 2rem;
    }
    
    .features-section,
    .quizzes-section,
    .how-it-works-section,
    .pricing-section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .pricing-card {
        padding: 25px 20px 20px;
    }
    
    .pricing-card.featured {
        padding-top: 35px;
    }
    
    .pricing-header {
        margin-bottom: 15px;
        padding-bottom: 12px;
    }
    
    .pricing-header h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .pricing-amount .currency {
        font-size: 1.1rem;
    }
    
    .pricing-amount .amount {
        font-size: 2rem;
    }
    
    .pricing-amount .period {
        font-size: 0.9rem;
    }
    
    .pricing-features {
        margin-bottom: 15px;
    }
    
    .pricing-features ul li {
        padding: 6px 0;
    }
    
    .pricing-footer {
        padding-top: 12px;
    }
    
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .main-footer {
        padding: 40px 0 20px;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.4);
}

/* Pagination Styles */
.pagination .page-link {
    color: var(--primary-blue);
    border-color: var(--light-blue);
}

.pagination .page-item.active .page-link {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

.pagination .page-link:hover {
    color: var(--dark-blue);
    background: var(--light-blue);
    border-color: var(--primary-blue);
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-carousel-section .carousel-item {
        height: 350px;
    }
    
    .hero-carousel-section .carousel-caption .hero-title {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
    
    .hero-carousel-section .carousel-caption .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        padding: 0 15px;
    }
    
    .hero-carousel-section .carousel-caption .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 10px;
        width: 90%;
        margin: 0 auto;
    }
    
    .hero-carousel-section .carousel-caption .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-carousel-section .carousel-control-prev,
    .hero-carousel-section .carousel-control-next {
        width: 35px;
        height: 35px;
    }
    
    .hero-carousel-section .carousel-indicators {
        bottom: 10px;
    }
    
    .hero-carousel-section .carousel-indicators button {
        width: 8px;
        height: 8px;
        margin: 0 3px;
    }
    
    .hero-carousel-section .carousel-indicators button.active {
        width: 20px;
    }
    
    .stat-card {
        padding: 20px 10px;
    }
    
    .stat-card h3 {
        font-size: 1.5rem;
    }
    
    .pricing-section .row {
        margin: 0 -10px;
    }
    
    .pricing-section .row > [class*="col-"] {
        padding: 0 10px;
        margin-bottom: 20px;
    }
    
    .pricing-card {
        padding: 25px 18px 20px;
    }
    
    .pricing-card.featured {
        padding-top: 35px;
    }
    
    .pricing-header {
        margin-bottom: 15px;
        padding-bottom: 12px;
    }
    
    .pricing-header h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .pricing-amount .currency {
        font-size: 1rem;
    }
    
    .pricing-amount .amount {
        font-size: 1.8rem;
    }
    
    .pricing-amount .period {
        font-size: 0.85rem;
    }
    
    .pricing-features {
        margin-bottom: 15px;
    }
    
    .pricing-features ul li {
        padding: 6px 0;
        font-size: 0.9rem;
    }
    
    .pricing-footer {
        padding-top: 12px;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}