:root {
    --bg-dark: #050511;
    --bg-light: #0f172a;
    --primary: #00f2ea;
    --primary-glow: rgba(0, 242, 234, 0.5);
    --secondary: #ff0055;
    --secondary-glow: rgba(255, 0, 85, 0.5);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-main: 'Outfit', sans-serif;
    --container-width: 1200px;
}

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

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

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.center {
    text-align: center;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(90deg, var(--secondary), #d90045);
    color: white;
    box-shadow: 0 0 20px var(--secondary-glow);
    border: none;
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

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

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* Glassmorphism */
.glass {
    background: var(--glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: var(--container-width);
    z-index: 1000;
    padding: 15px 30px;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: -0.5px;
    z-index: 1001;
}

.dot {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

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

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

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

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: white;
    z-index: 1001;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    background: radial-gradient(circle at top right, #1e1b4b 0%, var(--bg-dark) 40%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.badge {
    background: rgba(0, 242, 234, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 242, 234, 0.3);
}

.hero h1 {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 500px;
}

.cta-group {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--glass-border);
    padding-top: 30px;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.stat-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.image-wrapper {
    position: relative;
    padding: 10px;
}

.image-wrapper img {
    width: 100%;
    border-radius: 15px;
    display: block;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.floating-card {
    position: absolute;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--glass-border);
    padding: 12px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-size: 0.9rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
    z-index: 10;
}

.floating-card i {
    color: var(--primary);
}

.c1 {
    top: 10%;
    left: -20px;
}

.c2 {
    bottom: 20%;
    right: -20px;
    animation-delay: 2s;
}

/* Sections */
.section {
    padding: 100px 0;
    position: relative;
}

.alt-bg {
    background: var(--bg-light);
}

.section-badge {
    color: var(--secondary);
    font-weight: 700;
    letter-spacing: 2px;
    font-size: 0.8rem;
    margin-bottom: 10px;
    display: block;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 40px;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    padding: 30px;
    transition: transform 0.3s;
}

.hover-lift:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.07);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Curriculum */
.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.curriculum-list {
    list-style: none;
    margin-top: 30px;
}

.curriculum-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.curriculum-list i {
    color: var(--primary);
    font-size: 1.5rem;
    margin-top: 5px;
}

.curriculum-list strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: white;
}

.curriculum-list p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.stack-card {
    padding: 40px;
}

.stack-header {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: white;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: rgba(255, 255, 255, 0.08);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    color: #e2e8f0;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    overflow: hidden;
    padding: 0;
    height: 100%;
}

.project-img {
    height: 250px;
    overflow: hidden;
}

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

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

.project-info {
    padding: 25px;
    position: relative;
}

.project-info h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.project-info p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.tag-sm {
    font-size: 0.8rem;
    color: var(--primary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Audience banner */
.banner-box {
    padding: 60px;
    text-align: center;
}

.banner-box h2 {
    margin-bottom: 40px;
    font-size: 2rem;
}

.audience-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.aud-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    color: var(--text-muted);
}

.aud-item i {
    font-size: 2rem;
    color: white;
}

/* Instructor */
.profile-card {
    padding: 40px;
    text-align: center;
    max-width: 350px;
    margin: 0 auto;
}

.profile-img {
    width: 140px;
    height: 140px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary);
    box-shadow: 0 0 20px rgba(0, 242, 234, 0.3);
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.social-links a {
    color: var(--text-muted);
    font-size: 1.5rem;
    transition: color 0.3s;
}

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

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 80px 0 30px;
    background: #020205;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.footer-bottom {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations included */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Responsive */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(5, 5, 17, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        transition: right 0.4s ease;
        z-index: 1000;
        border-left: 1px solid var(--glass-border);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        margin-bottom: 40px;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .hamburger {
        display: block;
    }

    .nav-btn {
        width: 80%;
        justify-content: center;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 60px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .hero p {
        margin: 0 auto 40px;
    }

    .cta-group {
        justify-content: center;
    }

    .stats {
        justify-content: center;
    }

    .about-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .row {
        grid-template-columns: 1fr;
    }

    .reverse-mobile {
        display: flex;
        flex-direction: column-reverse;
        gap: 40px;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-light);
    margin: 10% auto;
    padding: 40px;
    border: 1px solid var(--primary);
    width: 80%;
    max-width: 700px;
    position: relative;
    color: var(--text-main);
    box-shadow: 0 0 50px rgba(0, 242, 234, 0.2);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.close-btn {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close-btn:hover,
.close-btn:focus {
    color: var(--primary);
    text-decoration: none;
    cursor: pointer;
}

.modal-body h3 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--primary);
}

.modal-body ul {
    margin-left: 20px;
    margin-bottom: 15px;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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


/* Fixed Video Button */
.fixed-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #FF0000, #b30000);
    /* YouTube Red */
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    z-index: 1500;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: bounce 2s infinite;
}

.fixed-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 0, 0, 0.4);
}

.fixed-btn i {
    font-size: 1.2rem;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Video Modal Specifics */
.video-modal-content {
    max-width: 900px;
    padding: 20px;
    background: #000;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.close-video-btn {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 10px;
    transition: color 0.3s;
}

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