:root {
    --primary-color: #004b9c;
    --primary-dark: #3a56d4;
    --secondary-color: #4895ef;
    --accent-color: #f72585;
    --accent-dark: #e91e63;
    --light-color: #e6f2ff;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --gray: #f8fafc;
    --max-width: 1200px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.text-primary {
    color: var(--primary-color) !important;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(67, 97, 238, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.5);
}

.btn-accent {
    background-color: var(--accent-color);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(247, 37, 133, 0.4);
}

.btn-accent:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(247, 37, 133, 0.5);
}

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

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

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
/*header {
    background-color: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}*/

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

/*.logo {
    margin-left: 30px;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    line-height: 1.5rem;
}*/

.logo img {
    border-radius: 50%;
    height: 70px;
    width: auto;
    margin-right: 4px;
}

.logo i {
    margin-right: 0.5rem;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(67, 97, 238, 0.1);
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(247, 37, 133, 0.1);
    animation: float 10s ease-in-out infinite;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.2rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    animation: fadeIn 1s ease-out;
}

.hero-content h1 span {
    color: var(--accent-color);
}

.hero-content p {
    color: var(--text-light);
    margin-bottom: 2rem;
    animation: fadeIn 1s ease-out 0.2s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeIn 1s ease-out 0.4s forwards;
    opacity: 0;
}

.hero-image {
    position: relative;
    animation: fadeIn 1s ease-out 0.6s forwards;
    opacity: 0;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.5s ease;
}

.hero-image:hover img {
    transform: scale(1.02);
}

.floating-element {
    position: absolute;
    background: var(--white);
    border-radius: 15px;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    animation: float 6s ease-in-out infinite;
    z-index: 3;
}

.floating-element-1 {
    top: 20px;
    left: -30px;
    animation-delay: 0s;
}

.floating-element-2 {
    bottom: 40px;
    right: -30px;
    animation-delay: 1s;
}

.floating-element i {
    font-size: 1.8rem;
    margin-right: 0.8rem;
    color: var(--accent-color);
}

/* Features */
.features {
    padding: 6rem 0;
    background-color: var(--gray);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='5' fill='%234361ee' fill-opacity='0.1'/%3E%3C/svg%3E");
    z-index: 1;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 2;
}

.section-title h2 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-title h2 span {
    color: var(--accent-color);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    position: relative;
    z-index: 2;
}

.feature-card {
    background-color: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

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

/* Courses */
.courses {
    padding: 6rem 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234361ee' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.courses-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.course-card {
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.course-image {
    height: 220px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-content {
    padding: 1.8rem;
}

.course-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: var(--light-color);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.8rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.course-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 1.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.course-meta span {
    display: flex;
    align-items: center;
}

.course-meta i {
    margin-right: 0.5rem;
    color: var(--accent-color);
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='5' fill='white' fill-opacity='0.1'/%3E%3C/svg%3E");
    animation: rotate 30s linear infinite;
    z-index: 1;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.testimonials .section-title h2 {
    color: var(--white);
}

.testimonials .section-title p {
    color: rgba(255, 255, 255, 0.8);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    position: relative;
    z-index: 2;
}

.testimonial-card {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.2);
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.testimonial-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 1.5rem;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

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

.testimonial-info h4 {
    margin-bottom: 0.2rem;
    font-size: 1.2rem;
}

.testimonial-info p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.testimonial-content p {
    font-style: italic;
    line-height: 1.8;
}

.rating {
    color: #ffc107;
    margin-top: 1rem;
}

/* CTA */
.cta {
    padding: 6rem 0;
    background: linear-gradient(45deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    z-index: 1;
}

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

.cta h2 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.cta p {
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    font-size: 1.1rem;
}

.cta .btn {
    background-color: var(--white);
    color: var(--accent-color);
    font-weight: 700;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.cta .btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 5rem 0 2rem;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.footer-col p {
    margin-bottom: 1.5rem;
    opacity: 0.8;
    line-height: 1.8;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    opacity: 0.8;
    transition: all 0.3s ease;
    display: block;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
    transform: translateX(5px);
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Auth Forms */
.auth-container {
    display: flex;
    min-height: 100vh;
    background: url('https://images.unsplash.com/photo-1523580494863-6f3031224c94?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1170&q=80') no-repeat center center;
    background-size: cover;
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.9) 0%, rgba(247, 37, 133, 0.8) 100%);
}

.auth-form {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    margin: auto;
    width: 100%;
    max-width: 450px;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    z-index: 2;
    animation: fadeIn 0.8s ease-out;
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-size: 2.2rem;
}

.auth-form p {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.auth-form .btn {
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 1.1rem;
}

.auth-alt {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-light);
}

.auth-alt a {
    color: var(--primary-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

.auth-alt a:hover {
    color: var(--accent-color);
}

.social-auth {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-auth a {
    flex: 1;
    padding: 0.8rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s ease;
}

.social-auth-google {
    background-color: #DB4437;
    color: white;
}

.social-auth-facebook {
    background-color: #4267B2;
    color: white;
}

.social-auth a:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Responsive */
@media (min-width: 992px) {
    .hero-content p {
        font-size: 1.1rem;
    }
}
@media (max-width: 992px) {
    .hero-container,
    .features-grid,
    .courses-grid,
    .testimonials-grid,
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .auth-form {
        max-width: 400px;
        padding: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero {
        /*padding: 5rem 0;*/
        /*background: linear-gradient(120deg, var(--light-color) 0%, rgba(255,255,255,1) 100%);*/
        position: relative;
        overflow: hidden;
    }

    .nav-links, .nav-buttons {
        display: none;
    }

    .menu-btn {
        display: block;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: 2rem;
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
    }

    .features-grid,
    .courses-grid,
    .testimonials-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .courses-header {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .floating-element {
        display: none;
    }

    .auth-form {
        margin: 2rem;
        padding: 2rem;
    }

    .social-auth {
        flex-direction: column;
    }
}