:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #6366f1;
    --secondary-color: #a855f7;
    --accent-glow: rgba(99, 102, 241, 0.5);
    --font-main: 'Outfit', sans-serif;
}

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

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

/* Cursor Glow Effect */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: -1;
    opacity: 0.6;
}

/* Typography & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

h1,
h2,
h3 {
    line-height: 1.2;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    border: 2px solid var(--text-secondary);
    color: var(--text-primary);
    margin-left: 1rem;
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

/* Hero Section Layout */
.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-text {
    flex: 1;
    max-width: 650px;
}

.hero-image {
    flex: 0 0 350px;
    /* Fixed width for image container */
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    padding: 6px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 0 50px rgba(99, 102, 241, 0.4);
    animation: pulseGlow 4s infinite alternate;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--bg-color);
    background: var(--card-bg);
}

@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
    }

    100% {
        box-shadow: 0 0 60px rgba(99, 102, 241, 0.6);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }

    50% {
        transform: translateY(-15px) rotate(2deg);
        border-radius: 40% 60% 60% 40% / 40% 40% 60% 60%;
    }
}

/* Tablet/Mobile Responsive Adjustments for Hero */
/* Tablet/Mobile Responsive Adjustments for Hero */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column-reverse;
        text-align: center;
        gap: 2rem;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-image {
        flex: auto;
    }

    .image-wrapper {
        width: 350px;
        height: 350px;
        margin: 0 auto;
    }

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

@media (max-width: 576px) {
    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    .name {
        font-size: 2.5rem;
    }
}

.greeting {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    display: block;
}

.name {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.role {
    font-size: 2.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.role .highlight {
    color: var(--text-primary);
    position: relative;
    white-space: nowrap;
}

.role .highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--primary-color);
    opacity: 0.3;
    z-index: -1;
}

.bio {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

/* Section Common */
.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

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

.about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
}

.skills-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.skills-card h3 {
    margin-bottom: 1.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tags span {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

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

.project-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

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

.project-image {
    height: 200px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #1e293b, #0f172a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech span {
    font-size: 0.8rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* Contact Section */
.contact-container {
    text-align: center;
    max-width: 600px;
}

.contact-text {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.social-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 100px;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.social-btn i {
    font-size: 2rem;
    color: var(--primary-color);
}

.social-btn:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
}

.footer {
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
}

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

    .role {
        font-size: 1.5rem;
    }

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

    .hero-content {
        text-align: center;
    }

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

    .nav-links {
        display: none;
        /* Mobile menu to be added if needed, kept simple for now */
    }
}

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

.certificate-card {
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
    /* Ensure content stays inside border radius */
    display: flex;
    flex-direction: column;
    /* Stack vertically */
    gap: 0;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.certificate-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.cert-preview {
    width: 100%;
    height: 200px;
    background: #000;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cert-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* Show full image */
    background: #f1f5f9;
    /* Light background for transparent/white docs */
}

.cert-preview iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #fff;
    pointer-events: none;
    /* Prevent interaction within thumbnail */
}

.cert-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cert-content h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0;
}

.cert-issuer {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

.cert-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.cert-desc {
    font-size: 0.85rem;
    color: #cbd5e1;
    margin-top: 0.5rem;
    line-height: 1.4;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 0.5rem;
}

/* cert-icon class is removed/deprecated in new layout but kept for safety or legacy */
.cert-icon {
    display: none;
}

/* Education / Timeline Section */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: rgba(255, 255, 255, 0.1);
}


/* Modal Slider Styles */
.modal-slider {
    position: relative;
    width: 100%;
    height: 300px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 12px;
    background: #000;
}

.modal-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.modal-slide.active {
    opacity: 1;
}

.timeline-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 3rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -6px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.timeline-school {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.timeline-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Responsive adjustments for Timeline */
@media (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .timeline {
        padding-left: 1rem;
    }
}

.cert-link {
    display: inline-block;
    margin-top: 0.8rem;
    padding: 0.4rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border-radius: 4px;
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.3s ease;
}


/* Slider Styles */
.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.slider-wrapper {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    height: 100%;
}

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

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    cursor: pointer;
    z-index: 10;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}


/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    max-height: 80vh;
    overflow-y: auto;
}

.modal.show .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--text-primary);
}

#modal-title {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

#modal-body {
    color: var(--text-secondary);
    line-height: 1.7;
}

#modal-body h4 {
    color: var(--text-primary);
    margin: 1.5rem 0 0.5rem;
    font-size: 1.2rem;
}

#modal-body ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0;
    font-weight: 500;
    transition: color 0.3s;
}

.btn-text:hover {
    color: var(--primary-color);
}
/* Glowing Demo Button */
.btn-glow {
    background: linear-gradient(45deg, #ff00cc, #3333ff);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 0 10px rgba(255, 0, 204, 0.5);
    animation: btnPulse 2s infinite;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-glow:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 0 20px rgba(255, 0, 204, 0.8);
    color: white;
}

@keyframes btnPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 0, 204, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 0, 204, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 204, 0);
    }
}