/* Premium Glassmorphism & Cyberpunk Design System */
:root {
    --primary-color: #4f46e5; /* Royal Indigo */
    --primary-light: #6366f1; /* Indigo Glow */
    --primary-dark: #3730a3;
    --primary-glow: rgba(99, 102, 241, 0.4);
    
    --secondary-color: #0f172a; /* Warm Slate Dark Blue */
    --bg-color: #0b0f19; /* Lighter, warmer dark background */
    --surface-color: rgba(22, 28, 45, 0.75); /* Warmer translucent surface */
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #f59e0b; /* Warm Golden Amber */
    --accent-glow: rgba(245, 158, 11, 0.35);
    
    --gradient-purple: linear-gradient(135deg, #6366f1, #3730a3);
    --gradient-cyber: linear-gradient(135deg, #6366f1 30%, #a855f7 70%, #f59e0b 100%); /* Warm premium gradient */
    --gradient-dark: linear-gradient(180deg, #0f172a, #0b0f19);
    
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --font-header: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Background Glow Blobs */
.glow-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -10;
    pointer-events: none;
    overflow: hidden;
}

.glow-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: drift 20s infinite alternate ease-in-out;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--primary-light);
    top: -10%;
    left: -10%;
}

.blob-2 {
    width: 600px;
    height: 600px;
    background: var(--accent-color);
    bottom: -15%;
    right: -10%;
    animation-delay: -5s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: #a855f7; /* Warm Purple glow accent */
    top: 40%;
    left: 50%;
    opacity: 0.08;
    animation-delay: -10s;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(100px, 50px) scale(1.1); }
    100% { transform: translate(-50px, 120px) scale(0.95); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 4rem;
    background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 70%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 40px rgba(99, 102, 241, 0.1);
}

h2 {
    font-size: 2.75rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    background: linear-gradient(135deg, #ffffff 40%, #d8b4fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-cyber);
    margin: 1rem auto 0 auto;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--accent-glow);
}

h3 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Reusable Containers */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2.5rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--surface-color);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1.5px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent 40%, rgba(6, 182, 212, 0.2));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.glass-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-cyber);
    color: #030712;
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px var(--accent-glow), 0 0 20px var(--primary-glow);
    color: #fff;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.03);
    border: 1.5px solid rgba(139, 92, 246, 0.4);
    color: var(--text-primary);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: var(--gradient-purple);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 12px 32px var(--primary-glow);
    color: #fff;
}

/* Header & Glass Navigation */
header {
    background: rgba(3, 7, 18, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.logo {
    font-family: var(--font-header);
    font-size: 1.8rem;
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: var(--transition);
}

.logo:hover .logo-img {
    transform: scale(1.05);
}

.footer-logo .logo-img {
    height: 60px;
}

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

.nav-links a {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--gradient-cyber);
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 80%;
}

.mobile-menu-btn {
    display: none;
    font-size: 2rem;
    color: #fff;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero Section & Slider */
.hero {
    height: 100vh;
    min-height: 700px;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 1.2s ease-in-out, transform 1.2s ease-in-out, visibility 1.2s ease-in-out;
    display: flex;
    align-items: center;
    transform: scale(1.05);
    z-index: 1;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scale(1);
    z-index: 2;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    z-index: -2;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(3, 7, 18, 0.85) 0%, rgba(3, 7, 18, 0.98) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 900px;
}

.hero-tagline {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary-light);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 700px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

/* Slider Controls */
.slider-nav {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 1rem;
}

.slider-dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
    width: 35px;
    border-radius: 10px;
}

/* Stats Section */
.stats-section {
    background: rgba(11, 15, 25, 0.4);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    text-align: center;
}

.stat-item {
    position: relative;
}

.stat-number {
    font-family: var(--font-header);
    font-size: 3.5rem;
    font-weight: 900;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Services */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    position: relative;
    border-radius: 16px;
    background: rgba(22, 28, 45, 0.6);
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    overflow: hidden;
    transition: var(--transition);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-cyber);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), 0 0 30px var(--accent-glow);
    background: rgba(22, 28, 45, 0.85);
    border-color: rgba(245, 158, 11, 0.3);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon-container {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 2.2rem;
    color: var(--primary-light);
    box-shadow: 0 8px 16px rgba(139, 92, 246, 0.1);
    transition: var(--transition);
}

.feature-card:hover .feature-icon-container {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--accent-color);
    box-shadow: 0 8px 24px var(--accent-glow);
    transform: rotate(5deg) scale(1.05);
}

/* Why Choose Us & Premium Graphics layout */
.split-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.visual-element {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cyber-grid-effect {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(139, 92, 246, 0.15) 1px, transparent 0);
    background-size: 24px 24px;
    z-index: -1;
    border-radius: 20px;
}

.visual-image-wrapper {
    position: relative;
    border-radius: 20px;
    padding: 10px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.25);
}

.visual-image-wrapper img {
    width: 100%;
    border-radius: 12px;
    display: block;
}

.visual-floating-badge {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: float 6s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.visual-floating-badge .badge-icon {
    font-size: 2rem;
    color: var(--accent-color);
}

.visual-floating-badge .badge-title {
    font-weight: 800;
    color: #fff;
    font-size: 1.1rem;
}

/* Testimonial Carousel Section */
.testimonials-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-carousel {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    width: 100%;
}

.testimonial-slide {
    flex: 0 0 100%;
    padding: 0 1rem;
}

.testimonial-card {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4rem 3rem;
    position: relative;
    text-align: center;
}

.testimonial-quote {
    font-size: 1.4rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-cyber);
    margin-bottom: 1rem;
    padding: 4px;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #0b0f19;
}

.testimonial-carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.carousel-btn:hover {
    background: var(--gradient-cyber);
    color: #030712;
    transform: scale(1.1);
}

/* Premium Course Cards Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.course-card {
    background: var(--surface-color);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-image-container {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.course-card:hover .course-img {
    transform: scale(1.08);
}

.course-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(3, 7, 18, 0.95), transparent);
}

.course-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-cyber);
    color: #030712;
    font-weight: 800;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.4rem 1rem;
    border-radius: 100px;
    box-shadow: 0 8px 16px var(--accent-glow);
}

.course-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-price-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1.5rem 0;
}

.course-price {
    font-family: var(--font-header);
    font-weight: 900;
    font-size: 1.6rem;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.course-price-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Contact layout */
.contact-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 5rem;
}

.contact-card-box {
    background: rgba(17, 24, 39, 0.4);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 16px;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.contact-card-box:hover {
    background: rgba(17, 24, 39, 0.7);
    border-color: rgba(139, 92, 246, 0.3);
    transform: translateX(5px);
}

.contact-card-icon {
    font-size: 2.2rem;
    color: var(--accent-color);
    background: rgba(6, 182, 212, 0.1);
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-form {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    padding: 4rem 3rem;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 2rem;
}

.form-control {
    width: 100%;
    padding: 1.2rem;
    background: rgba(3, 7, 18, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1.05rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
    background: rgba(3, 7, 18, 0.8);
}

/* WhatsApp Widget */
.whatsapp-float {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 65px;
    height: 65px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 16px 40px rgba(37, 211, 102, 0.6);
    color: #fff;
}

/* Footer styling */
footer {
    background: #030712;
    border-top: 1px solid var(--border-color);
    padding: 8rem 0 3rem 0;
    position: relative;
    overflow: hidden;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    font-family: var(--font-header);
    font-size: 2.2rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 1.5rem;
}

.footer-logo span {
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-column h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    font-size: 1.05rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.footer-bottom a {
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--accent-color) !important;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    h1 {
        font-size: 3.5rem;
    }
    .split-layout, .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.8rem;
    }
    h2 {
        font-size: 2.2rem;
    }
    
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 90px;
        left: 0;
        width: 100%;
        background-color: rgba(3, 7, 18, 0.95);
        padding: 3rem 2rem;
        border-bottom: 1px solid var(--border-color);
        gap: 1.5rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}