:root {
    --black: #0a0a0a;
    --deep-black: #050505;
    --gold: #d4af37;
    --light-gold: #f4d475;
    --dark-gold: #b8941f;
    --dark-gray: #1a1a1a;
    --medium-gray: #2a2a2a;
    --light-gray: #a0a0a0;
    --white: #ffffff;
    
    --gradient-gold: linear-gradient(135deg, #f4d475 0%, #d4af37 50%, #b8941f 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
}

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

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

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--deep-black);
    overflow: hidden;
}

.bg-animation::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(212, 175, 55, 0.04) 0%, transparent 50%);
    animation: bgRotate 30s linear infinite;
}

@keyframes bgRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    font-size: 1rem;
}

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

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

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu span {
    width: 30px;
    height: 3px;
    background: var(--gold);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 8rem 0 4rem;
}

.hero-content {
    text-align: center;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
    width: 100%;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50px;
    color: var(--gold);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.hero h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #d4af37 50%, #f4d475 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--light-gray);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s backwards;
    padding: 0 1rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s backwards;
    margin-bottom: 3rem;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    font-family: 'Syne', sans-serif;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--black);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.3);
}

.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 0.6s ease;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(212, 175, 55, 0.5);
}

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

.btn-secondary:hover {
    background: var(--gold);
    color: var(--black);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.3);
}

/* 3D Chart Decoration */
.chart-3d {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0.05;
    background-image: 
        linear-gradient(90deg, rgba(212, 175, 55, 0.1) 1px, transparent 1px),
        linear-gradient(rgba(212, 175, 55, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: chartMove 20s linear infinite;
    transform: perspective(1000px) rotateX(60deg);
}

@keyframes chartMove {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* Section Styles */
section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50px;
    color: var(--gold);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--light-gray);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    padding: 0 1rem;
}

/* Glass Card */
.glass-card {
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-gold);
    border-radius: 20px;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
}

.glass-card:hover::before {
    opacity: 0.1;
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(212, 175, 55, 0.2);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--gold);
    margin-bottom: 1rem;
}

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

/* Course Card */
.course-card {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, rgba(26, 26, 26, 0.8) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid var(--gold);
    border-radius: 30px;
    padding: 2.5rem;
    max-width: 900px;
    margin: 3rem auto 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(212, 175, 55, 0.3);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-gold);
    opacity: 0.03;
    z-index: 0;
}

.course-content {
    position: relative;
    z-index: 1;
}

.course-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--gradient-gold);
    color: var(--black);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.course-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1rem;
}

.course-price {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 5vw, 3rem);
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1.5rem 0;
}

.course-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--light-gray);
}

.feature-icon {
    width: 24px;
    height: 24px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--black);
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* What's Included Section */
.included-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.included-item {
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s ease;
}

.included-item:hover {
    transform: translateY(-5px);
    border-color: var(--gold);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.2);
}

.included-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.included-item h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--gold);
    margin-bottom: 0.8rem;
}

.included-item p {
    color: var(--light-gray);
    line-height: 1.6;
}

/* Curriculum Section */
.curriculum-timeline {
    max-width: 900px;
    margin: 3rem auto;
    position: relative;
}

.curriculum-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--gold) 0%, rgba(212, 175, 55, 0.2) 100%);
}

.curriculum-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3rem;
}

.curriculum-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--black);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
}

.curriculum-content {
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.curriculum-content:hover {
    border-color: var(--gold);
    transform: translateX(10px);
}

.curriculum-content h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--gold);
    margin-bottom: 0.8rem;
}

.curriculum-content p {
    color: var(--light-gray);
    line-height: 1.8;
}

/* Why Choose Us */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.why-item {
    text-align: center;
    padding: 2rem;
    background: rgba(26, 26, 26, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 20px;
    transition: all 0.4s ease;
}

.why-item:hover {
    transform: translateY(-10px);
    border-color: var(--gold);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.2);
}

.why-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.why-item h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--gold);
    margin-bottom: 0.8rem;
}

.why-item p {
    color: var(--light-gray);
    line-height: 1.6;
}

.why-description {
    max-width: 1000px;
    margin: 3rem auto 0;
    padding: 2.5rem;
    background: rgba(212, 175, 55, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    color: var(--light-gray);
    line-height: 1.9;
    text-align: center;
}

/* Footer */
footer {
    background: var(--dark-gray);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--gold);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: var(--light-gray);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: color 0.3s ease;
    line-height: 1.6;
}

.footer-section a:hover {
    color: var(--gold);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-icon:hover {
    background: var(--gold);
    color: var(--black);
    transform: translateY(-3px);
}

.footer-divider {
    height: 2px;
    background: var(--gradient-gold);
    opacity: 0.2;
    margin: 2rem 0;
}

.footer-bottom {
    text-align: center;
    color: var(--light-gray);
    font-size: 0.9rem;
}

/* Scroll to Top */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
    font-weight: 700;
    color: var(--black);
    font-size: 1.5rem;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.6);
}

/* Loading Animation */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .nav-content {
        padding: 1rem 1.5rem;
    }
    
    .course-card {
        padding: 2rem;
    }
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        padding: 2rem;
        flex-direction: column;
        gap: 1.5rem;
        border-top: 1px solid rgba(212, 175, 55, 0.2);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .curriculum-timeline::before {
        left: 20px;
    }
    
    .curriculum-item {
        padding-left: 70px;
    }
    
    .curriculum-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .about-grid,
    .included-grid,
    .why-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .hero {
        padding: 6rem 0 3rem;
        min-height: auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 400px;
        margin: 0 auto 3rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        padding: 1rem 2rem;
    }
    
    .course-features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .logo {
        font-size: 1.2rem;
    }
    
    .glass-card,
    .course-card {
        padding: 1.5rem;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .why-description {
        padding: 1.5rem;
    }
    
    .curriculum-item {
        padding-left: 60px;
        margin-bottom: 2rem;
    }
    
    .curriculum-number {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .curriculum-content {
        padding: 1.5rem;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-content {
        padding: 1rem;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }
    
    .section-badge {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }
    
    .included-grid,
    .why-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }
}