:root {
    /* Primary colors */
    --primary: #5c6bc0; /* Main brand color */
    --primary-light: #8e99f3;
    --primary-dark: #26418f;
    
    /* Secondary colors */
    --secondary: #8c9eff;
    --secondary-light: #c0cfff;
    --secondary-dark: #5870cb;
    
    /* Neutral colors */
    --text-dark: #2c3e50;
    --text-light: #f8f9fa;
    --text-muted: #6c757d;
    
    /* Background colors */
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --bg-dark: #343a40;
    --bg-gray: #f3f4f6;
    
    /* Glassmorphism variables */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-border: 1px solid rgba(255, 255, 255, 0.18);
    --glass-blur: blur(8px);
    
    /* Overlay colors */
    --overlay-dark: rgba(0, 0, 0, 0.6);
    --overlay-gradient: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.7));
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 2rem;
    
    /* Transition */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Rubik', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-light);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h5 {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.section-title {
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--primary-dark);
}

.section-subtitle {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

/* Container overrides */
.container {
    padding: 0 var(--spacing-md);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: -1;
}

.btn:hover::after {
    transform: translateX(0);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-light);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--primary-dark);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
    background-color: var(--primary);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition-normal);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    background-color: var(--glass-bg);
    box-shadow: var(--glass-shadow);
    border-bottom: var(--glass-border);
}

.navbar {
    padding: 0.5rem 0;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--primary-dark);
    transition: all var(--transition-fast);
}

.navbar-brand:hover {
    color: var(--primary);
}

.navbar-nav .nav-item {
    margin-left: 0.5rem;
}

.navbar-nav .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.navbar-nav .nav-link:hover, .navbar-nav .nav-link:focus {
    color: var(--primary);
    background-color: rgba(92, 107, 192, 0.1);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
    padding-right: 34px;
}

/* Hero Section */
.hero-section {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 10rem 0 6rem;
    color: var(--text-light);
}

.hero-section .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-gradient);
    z-index: 1;
}

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

.hero-section h1 {
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    color: white;
}

.hero-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: white;
}

/* About Section */
.about-section {
    padding: var(--spacing-xl) 0;
}

.about-section .image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.about-section .image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(120deg, var(--primary-light) 0%, var(--secondary-light) 100%);
    opacity: 0.3;
    z-index: 1;
    transition: opacity var(--transition-normal);
}

.about-section .image-container:hover::before {
    opacity: 0.5;
}

.about-section .image-container img {
    transition: transform var(--transition-slow);
}

.about-section .image-container:hover img {
    transform: scale(1.05);
}

.about-section h3 {
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

/* History Section */
.history-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--primary);
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
    margin-bottom: 2rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 1.5rem;
    background-color: var(--bg-white);
    position: relative;
    border-radius: var(--radius-md);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.timeline-content h4 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.timeline-item:nth-child(odd)::before {
    content: '';
    position: absolute;
    top: 22px;
    right: 30px;
    width: 20px;
    height: 20px;
    background-color: var(--bg-white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
}

.timeline-item:nth-child(even)::before {
    content: '';
    position: absolute;
    top: 22px;
    left: 30px;
    width: 20px;
    height: 20px;
    background-color: var(--bg-white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
}

/* Case Studies Section */
.case-studies-section {
    padding: var(--spacing-xl) 0;
}

.content-carousel {
    position: relative;
    padding: 0 3rem;
}

.carousel-inner {
    overflow: hidden;
}

.carousel-item {
    display: none;
}

.carousel-item.active {
    display: block;
}

.carousel-control-prev, .carousel-control-next {
    position: absolute;
    top: 50%;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background-color: var(--primary);
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    cursor: pointer;
    z-index: 10;
}

.carousel-control-prev {
    left: 0;
}

.carousel-control-next {
    right: 0;
}

.carousel-control-prev:hover, .carousel-control-next:hover {
    opacity: 1;
}

.case-studies-section .card {
    height: 100%;
    border: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.case-studies-section .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-studies-section .card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.case-studies-section .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-studies-section .card:hover .card-image img {
    transform: scale(1.05);
}

.case-studies-section .card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-studies-section .card-content h4 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.case-studies-section .card-content p {
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* Instructors Section */
.instructors-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.instructor-card {
    border: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.instructor-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.instructor-card .card-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.instructor-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.instructor-card:hover .card-image img {
    transform: scale(1.05);
}

.instructor-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.instructor-card .instructor-title {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.instructor-card .social-links {
    margin-top: 1rem;
    font-weight: 500;
}

.instructor-card .social-links a {
    color: var(--primary);
    margin: 0 0.3rem;
    transition: color var(--transition-fast);
}

.instructor-card .social-links a:hover {
    color: var(--primary-dark);
}

/* Resources Section */
.resources-section {
    padding: var(--spacing-xl) 0;
}

.resource-card {
    border: none;
    border-radius: var(--radius-md);
    background-color: var(--bg-white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-normal);
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.resource-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
    width: 100%;
}

.resource-card h4 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 0.5rem;
}

.resource-card .resource-list {
    list-style-type: none;
    padding: 0;
}

.resource-card .resource-list li {
    margin-bottom: 0.75rem;
}

.resource-card .resource-list li a {
    display: block;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.resource-card .resource-list li a:hover {
    background-color: rgba(92, 107, 192, 0.1);
    transform: translateX(5px);
}

/* Team Section */
.team-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.team-card {
    border: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.team-card .card-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
}

.team-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.team-card:hover .card-image img {
    transform: scale(1.05);
}

.team-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.team-card .team-position {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Blog Section */
.blog-section {
    padding: var(--spacing-xl) 0;
}

.blog-card {
    border: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.blog-card .card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.blog-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .card-image img {
    transform: scale(1.05);
}

.blog-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-card .blog-date {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.blog-card h4 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.blog-card p {
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.blog-card .btn {
    align-self: flex-start;
    margin-top: auto;
}

/* Success Stories Section */
.success-stories-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.testimonial-card {
    border: none;
    border-radius: var(--radius-lg);
    background-color: var(--bg-white);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.testimonial-card .card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.testimonial-card .testimonial-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 5px solid var(--primary-light);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.testimonial-card .testimonial-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-card .testimonial-text {
    flex-grow: 1;
}

.testimonial-card .testimonial-text p {
    font-style: italic;
    position: relative;
    padding: 0 1.5rem;
}

.testimonial-card .testimonial-text p::before,
.testimonial-card .testimonial-text p::after {
    content: '"';
    font-size: 2rem;
    color: var(--primary-light);
    position: absolute;
    font-family: var(--font-heading);
}

.testimonial-card .testimonial-text p::before {
    top: -0.5rem;
    left: 0;
}

.testimonial-card .testimonial-text p::after {
    bottom: -1.5rem;
    right: 0;
}

.testimonial-card h5 {
    color: var(--primary-dark);
    margin: 1rem 0 0.25rem;
}

.testimonial-card .testimonial-company {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xl) 0;
    position: relative;
    background-color: var(--bg-white);
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('image/contact-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.05;
}

.contact-info {
    padding: 2rem;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    height: 100%;
}

.contact-info h3 {
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 0.75rem;
}

.contact-method {
    margin-bottom: 1.5rem;
}

.contact-method h5 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.contact-form {
    padding: 2rem;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    height: 100%;
}

.contact-form .form-label {
    color: var(--text-dark);
    font-weight: 500;
}

.contact-form .form-control {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    transition: all var(--transition-fast);
}

.contact-form .form-control:focus {
    box-shadow: none;
    border-color: var(--primary);
}

.contact-form .form-check-label {
    font-size: 0.875rem;
}

.contact-form .form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-lg) 0;
}

.footer h4, .footer h5 {
    color: white;
    margin-bottom: 1.5rem;
}

.footer p {
    opacity: 0.85;
}

.footer-links {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.social-links {
    margin-top: 1.5rem;
}

.social-links a {
    color: rgba(255, 255, 255, 0.7);
    margin-right: 0.5rem;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    color: white;
}

.copyright {
    margin-top: 1rem;
    opacity: 0.7;
    font-size: 0.875rem;
}

/* Privacy and Terms Pages */
.privacy-page, .terms-page {
    padding-top: 100px;
    padding-bottom: var(--spacing-xl);
}

/* Success Page */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.success-content {
    max-width: 600px;
    padding: 3rem;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.success-icon {
    font-size: 5rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

/* Animation Styles */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-50px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(50px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

/* Responsive Styles */
@media (max-width: 991.98px) {
    .navbar-nav {
        padding-top: 1rem;
    }
    
    .navbar-nav .nav-item {
        margin-left: 0;
        margin-bottom: 0.5rem;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item:nth-child(odd)::before,
    .timeline-item:nth-child(even)::before {
        left: 20px;
    }
}

@media (max-width: 767.98px) {
    .hero-section {
        padding: 8rem 0 4rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .content-carousel {
        padding: 0 1rem;
    }
}

@media (max-width: 575.98px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section p {
        font-size: 1.1rem;
    }
    
    .carousel-control-prev, .carousel-control-next {
        width: 2.5rem;
        height: 2.5rem;
    }
}