:root {
    --bg-color: #050505;
    --bg-secondary: #0a0a0a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --neon-green: #00ff9d;
    --neon-cyan: #00f3ff;
    --neon-pink: #ff0055;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --spacing-section: 4rem;
}

html {
    background-color: var(--bg-color);
}

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

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

#app {
    position: relative;
    z-index: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-main);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--neon-cyan);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-green);
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;

}

.section {
    padding: var(--spacing-section) 0;
}

.neon-text {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

.neon-border {
    border: 1px solid var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 10;
    cursor: pointer;
}

.btn-primary {
    background: transparent;
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
}

.btn-primary:hover {
    background: var(--neon-green);
    color: var(--bg-color);
    box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
}

.btn-secondary:hover {
    background: var(--neon-cyan);
    color: var(--bg-color);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.4);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 243, 255, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.neon-dot {
    color: var(--neon-green);
}

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

.nav-links a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    text-align: center;
}

#hero-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.25;
    pointer-events: none;
}

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

.hero-title {
    font-size: 4rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 4px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-family: var(--font-mono);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.section-title {
    position: relative;
    width: fit-content;
    /* Ensure underline fits text */
    margin-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
}

/* About Section */

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    display: flex;
    justify-content: center;
    position: relative;
}

.image-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
    transition: all 0.3s ease;
}

.image-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0, 243, 255, 0.2), transparent);
    z-index: 1;
}

.image-wrapper:hover {
    transform: scale(1.02);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.4);
}

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

.about-text-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}


.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.about-text strong {
    color: var(--neon-green);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-item {
    background: rgba(10, 10, 10, 0.7);
    /* Darker background for better text contrast */
    padding: 0.8rem 1.5rem;
    text-align: center;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    /* Subtle light border */
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    color: #ffffff;
    /* Explicit white text */
    position: relative;
    z-index: 2;
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.skill-item:hover {
    border-color: var(--neon-green);
    box-shadow: 0 0 15px rgba(0, 255, 157, 0.2);
    transform: translateY(-5px);
    color: var(--neon-green);
}

/* Profiles Section */
.profiles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;


}

.profile-card {
    background: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(0, 243, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.profile-card:hover::before {
    transform: translateX(100%);
}

.profile-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-cyan);
    box-shadow: 0 10px 30px rgba(0, 243, 255, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.badge {
    background: rgba(0, 255, 157, 0.1);
    color: var(--neon-green);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-stats {
    margin-bottom: 2rem;
}

.card-stats p {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8rem;
}

/* Training Section (Timeline) */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    margin-top: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: rgba(0, 243, 255, 0.2);
}

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 40px;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 40px;
    text-align: left;
}

.timeline-dot {
    position: absolute;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--bg-color);
    border: 2px solid var(--neon-green);
    border-radius: 50%;
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    border-color: var(--neon-green);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 255, 157, 0.1);
}

.timeline-content h3 {
    color: var(--neon-cyan);
    margin-bottom: 0.5rem;
}

.platform {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
}

.date {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background: var(--bg-secondary);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-pink);
    box-shadow: 0 10px 30px rgba(255, 0, 85, 0.15);
}

.project-image {
    height: 200px;
    background: #111;
    position: relative;
    overflow: hidden;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #111, #222);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-img::after {
    content: '</>';
    font-family: var(--font-mono);
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.1);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    height: 3em;
    /* Limit height */
    overflow: hidden;
}

.tech-stack {
    display: flex;
    gap: 10px;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.tech-stack span {
    font-size: 0.7rem;
    padding: 3px 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    font-family: var(--font-mono);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--neon-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-cyan);
    transition: all 0.3s ease;
    font-size: 0.8rem;
    font-weight: 700;
}

.social-icon:hover {
    background: var(--neon-cyan);
    color: var(--bg-color);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.1);
}

/* Footer */
.footer {
    padding: 2rem 0;
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 4rem;
}

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

.footer-tagline {
    color: var(--neon-cyan) !important;
    font-family: var(--font-mono);
    margin-top: 0.5rem;
    font-size: 0.8rem !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .nav-links {
        display: none;
        /* Mobile menu to be implemented */
    }

    .hamburger {
        display: block;
        /* To be implemented */
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        left: 0;
        text-align: left;
        padding-left: 50px;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 10px;
        right: auto;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

/* Cert Grid (New) */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.cert-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    transition: all 0.3s ease;
}

.cert-item:hover {
    border-color: var(--neon-green);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 255, 157, 0.1);
}

.cert-item h3 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.cert-item .issuer {
    color: var(--neon-cyan);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

/* Experience Section (Reusing Timeline) */
.experience-section {
    background: rgba(255, 255, 255, 0.01);
    /* Slight contrast */
}

/* Ensure timeline works for both */
.timeline-content h3 {
    color: var(--neon-cyan);

}

/* Lab Pages Card Styling */
.cards-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 20px 4rem;
    /* Top padding for navbar space if needed, though no navbar here */
    position: relative;
    z-index: 2;
}

.card {
    background: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(0, 243, 255, 0.1);
    color: var(--text-primary);
    border-radius: 15px;
    padding: 2rem;
    width: 250px;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.card h2 {
    font-size: 1.2rem;
    margin: 0;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link:hover .card {
    transform: translateY(-10px);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
    background: rgba(10, 10, 10, 0.9);
}