:root {
    --bg-color: #03040a;
    --primary: #5c62d6; /* Electric Blue */
    --primary-glow: rgba(92, 98, 214, 0.4);
    --secondary: #00f2fe; /* Cyan/Emerald */
    --accent: #8e2de2; /* Purple */
    --text-white: #ffffff;
    --text-gray: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-white);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Background Effects */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMDAiIGhlaWdodD0iMjAwIj48ZmlsdGVyIGlkPSJuIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iMC42NSIgbnVtT2N0YXZlcz0iMyIgc3RpdGNoVGlsZXM9InN0aXRjaCIvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbHRlcj0idXJsKCNuKSIgb3BhY2l0eT0iMC4wNSIvPjwvc3ZnPg==');
    pointer-events: none;
    z-index: 1000;
    opacity: 0.2;
}

.glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.4;
    transition: all 1s ease-in-out;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: var(--accent);
    animation: float-glow 20s infinite alternate;
}

.glow-2 {
    top: 40%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: var(--primary);
    animation: float-glow 25s infinite alternate-reverse;
}

.glow-3 {
    bottom: -10%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    animation: float-glow 30s infinite alternate;
}

@keyframes float-glow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Navigation */
.main-nav-header {
    position: fixed;
    top: 20px;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 20px;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 50px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 32px;
}

.logo span {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-gray);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-white);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-text {
    text-decoration: none;
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.95rem;
}

.btn-primary-glow {
    text-decoration: none;
    background: var(--primary);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 0 20px var(--primary-glow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--primary-glow), 0 0 40px var(--primary-glow);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding-top: 180px;
    text-align: center;
    position: relative;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 80px;
}

.btn-main {
    text-decoration: none;
    background: linear-gradient(135deg, var(--bg-color) 0%, #1a1b25 100%);
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    font-weight: 600;
    border: 1px solid var(--glass-border);
    transition: all 0.3s;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.btn-main:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(92, 98, 214, 0.2);
}

.btn-secondary {
    text-decoration: none;
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 500;
    padding: 0 20px;
    transition: all 0.3s;
}

.play-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.btn-secondary:hover .play-icon {
    background: var(--primary);
    color: white;
    box-shadow: 0 0 20px var(--primary-glow);
}

/* Visualization Container */
.visualization-container {
    width: 100%;
    height: 400px;
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 1.5rem;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.chart-box canvas {
    width: 100% !important;
    height: 100% !important;
}

/* --- Features Section --- */
.features-section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    text-align: left;
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(92, 98, 214, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 25px;
    box-shadow: 0 8px 16px rgba(92, 98, 214, 0.3);
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* --- Pricing Section --- */
.pricing-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(92, 98, 214, 0.05) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.price-card {
    padding: 50px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.4s ease;
    position: relative;
}

.price-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    background: rgba(15, 23, 42, 0.8);
    z-index: 2;
}

.price-card:hover {
    transform: translateY(-10px);
}

.price-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 1px;
}

.tier-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.feature-icon-mini {
    width: 50px;
    height: 50px;
    background: rgba(92, 98, 214, 0.1);
    border: 1px solid rgba(92, 98, 214, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* --- Metrics Section --- */
.metrics-section {
    padding: 60px 0;
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric-card {
    padding: 30px;
    text-align: center;
    border-radius: 20px;
}

.metric-value {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-white) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-gray);
    font-weight: 500;
}

/* --- Courses Snapshot --- */
.courses-snapshot {
    padding: 100px 0;
}

.courses-grid-snapshot {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.course-card-mini {
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.course-card-mini:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(92, 98, 214, 0.2);
}

.course-thumb {
    height: 160px;
    width: 100%;
}

.course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-info {
    padding: 24px;
}

.course-instructor {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--secondary);
    margin-bottom: 8px;
    font-weight: 600;
}

.course-card-mini h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.course-card-mini p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.5;
}

.btn-course {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-white);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: color 0.3s;
}

.btn-course i {
    font-size: 0.7rem;
    transition: transform 0.3s;
}

.btn-course:hover {
    color: var(--primary);
}

.btn-course:hover i {
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    .metrics-section {
        margin-top: 0;
    }
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.price span {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.price small {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.price-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.price-features {
    list-style: none;
    width: 100%;
    margin-bottom: 40px;
    text-align: left;
}

.price-features li {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.price-features li i {
    color: var(--secondary);
    font-size: 0.8rem;
}

.btn-price {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-price.active {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 10px 20px rgba(92, 98, 214, 0.3);
}

.btn-price:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.border-cyan { border-color: rgba(0, 242, 254, 0.3) !important; }
.btn-price.border-cyan:hover { background: var(--secondary); border-color: var(--secondary); }

/* --- Footer --- */
.footer {
    padding: 60px 0;
    border-top: 1px solid var(--border);
    margin-top: 50px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-copy {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* --- Pricing Section --- */
.pricing-section {
    padding: 120px 0;
    position: relative;
}

.pricing-showcase {
    display: flex;
    justify-content: center;
    align-items: center;
}

.pricing-main {
    max-width: 600px;
    width: 100%;
    padding: 60px 40px;
    text-align: center;
    border: 1px solid rgba(92, 98, 214, 0.3);
    position: relative;
    overflow: hidden;
}

.price-header {
    margin-bottom: 30px;
}

.price-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.price-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.original-price {
    font-size: 2.5rem;
    color: var(--text-gray);
    text-decoration: line-through;
    font-weight: 600;
}

.final-price {
    font-size: 4.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.features-list {
    text-align: left;
    margin: 50px 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.feature-group {
    border-left: 2px solid rgba(92, 98, 214, 0.3);
    padding-left: 20px;
}

.feature-group-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* --- How It Works Section --- */
.how-it-works {
    padding: 120px 0;
    position: relative;
}

.steps-container {
    display: flex;
    flex-direction: row;
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
    align-items: stretch;
}

.step-card {
    position: relative;
    padding: 50px;
    text-align: center;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(92, 98, 214, 0.2);
    border-radius: 20px;
    transition: all 0.4s ease;
    flex: 1;
}

.step-card:hover {
    background: rgba(15, 23, 42, 0.8);
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(92, 98, 214, 0.2);
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin: 0 auto 25px;
    box-shadow: 0 10px 30px rgba(92, 98, 214, 0.3);
}

.step-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-white);
}

.step-desc {
    color: var(--text-gray);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 400px;
    margin: 0 auto;
}

.step-connector {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    position: relative;
    flex-shrink: 0;
}

.connector-line {
    height: 3px;
    width: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
}

.connector-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: 3px solid var(--bg-color);
    border-radius: 50%;
}

.how-it-works-cta {
    display: flex;
    justify-content: center;
    margin-top: 60px;
}

/* --- Mobile Fixes --- */
@media (max-width: 768px) {
    .section-title { font-size: 2.2rem; }
    .hero-title { font-size: 2.5rem; }
    .pricing-grid { grid-template-columns: 1fr; }
    .price-card.featured { transform: scale(1); }
    .footer-links { gap: 20px; }
    .pricing-main { padding: 40px 20px; }
    .price-display { gap: 15px; }
    .original-price { font-size: 1.8rem; }
    .final-price { font-size: 3rem; }
    .step-card { padding: 30px 20px; }
    .step-icon { width: 60px; height: 60px; font-size: 1.8rem; }
    .features-list { grid-template-columns: 1fr; gap: 25px; }
    .steps-container { flex-direction: column; }
    .step-connector { width: 100%; height: 60px; align-items: stretch; }
    .connector-line { width: 3px; height: 100%; background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%); }
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 3.5rem; }
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .features-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .header { top: 0; padding: 0; }
    .nav-container { border-radius: 0; padding: 15px 20px; }
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-btns { flex-direction: column; align-items: center; }
    .btn-main { width: 100%; max-width: 300px; text-align: center; }
}