:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --primary-light: #34d399;
    --secondary: #3b82f6;
    --accent: #f59e0b;
    --success: #10b981;
    --dark: #0a0f1c;
    --dark-light: #111827;
    --light: #f0fdfa;
    --gray: #9ca3af;
    --tech-green: #10b981;
    --info-teal: #06b6d4;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    position: relative;
    z-index: 2;
}

h1, h2, h3, h4 {
    margin-bottom: 20px;
    color: var(--light);
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary);
}

p {
    margin-bottom: 15px;
    color: var(--gray);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary);
    color: var(--dark);
    border: none;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    margin-left: 15px;
}

.btn-secondary:hover {
    background: rgba(16, 185, 129, 0.1);
}

/* Animated Background */
#network-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: var(--dark);
}

/* Header & Navigation */
header {
    background: rgba(10, 15, 28, 0.95);
    position: fixed;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    animation: pulse 2s infinite; /* glowing pulse */
}

.logo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: bounce 2.5s ease-in-out infinite; /* bounce/scale effect */
}

/* glowing pulse */
@keyframes pulse {
    0% { box-shadow: 0 0 15px rgba(16,185,129,0.5); }
    50% { box-shadow: 0 0 30px rgba(16,185,129,0.9); }
    100% { box-shadow: 0 0 15px rgba(16,185,129,0.5); }
}

/* bounce scale effect */
@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}


.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
}

.logo-text span {
    color: var(--primary);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
    position: relative;
}

nav ul li a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 5px 0;
}

nav ul li a:hover {
    color: var(--primary);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light);
}

/* Enhanced Hero Section - Centered */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 120px 0 80px;
}

.hero-content {
    max-width: 900px;
    background: rgba(17, 24, 39, 0.7);
    padding: 60px 50px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeInUp 1s ease;
    position: relative;
    margin: 0 auto;
    width: 100%;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 3rem;
    text-align: center;
}

/* Logo in Hero Section */
.hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0;
    text-align: center;
}

.hero-logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* Image styling */
.hero-logo-img {
    width: 300px;
    height: auto;
    animation: logo-pulse 4s infinite;
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.6);
    border-radius: 20px;
    overflow: hidden;
    background: rgba(16, 185, 129, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

/* Animation effect */
@keyframes logo-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.hero-logo-text {
    font-size: 2rem;
    font-weight: 700;
    color: var(--light);
}

.hero-logo-text span {
    color: var(--primary);
}

/* Enhanced hero description */
.hero-description {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--gray);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    line-height: 1.7;
}

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

.typing-text {
    font-size: 1.8rem;
    margin-bottom: 30px;
    min-height: 70px;
    text-align: center;
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--primary);
    margin-left: 5px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0% { opacity: 1; }
    50% { opacity: 0; }
    100% { opacity: 1; }
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray);
}

/* Security Badge */
.security-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: var(--primary);
    color: var(--dark);
    padding: 10px 15px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Quick Links Section */
.quick-links-section {
    padding: 50px 0;
}

.quick-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.quick-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(17, 24, 39, 0.7);
    border-radius: 8px;
    text-decoration: none;
    color: var(--light);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quick-link:hover {
    background: rgba(16, 185, 129, 0.1);
    transform: translateY(-5px);
    border-color: var(--primary);
}

.quick-link i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* About Section */
.about {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin: 40px 0;
    padding: 70px 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

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

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.skill-tag {
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(16, 185, 129, 0.3);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(16, 185, 129, 0.2);
    transform: translateY(-3px);
}

/* Services Section */
.services {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin: 40px 0;
    padding: 70px 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: rgba(17, 24, 39, 0.7);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--primary);
    color: var(--dark);
    transform: scale(1.1);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light);
}

.service-description {
    color: var(--gray);
    line-height: 1.6;
}

/* Research Publications Section */
.research {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin: 40px 0;
    padding: 70px 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.research-card {
    background: rgba(17, 24, 39, 0.7);
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.research-icon {
    width: 60px;
    height: 60px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--primary);
}

.research-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--light);
}

.research-authors {
    color: var(--primary);
    font-style: italic;
    margin-bottom: 10px;
}

.research-venue {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.research-abstract {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 15px;
}

.research-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.research-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary);
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.research-link:hover {
    background: var(--primary);
    color: var(--dark);
}

/* Profile Image Styling */
.profile-img-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.profile-img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.5s ease;
}

.profile-img:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.4);
}

.section-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.section-img:hover {
    transform: scale(1.03);
}

/* Trust Indicators */
.trust-indicators {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding: 20px;
    background: rgba(17, 24, 39, 0.5);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.trust-icon {
    width: 40px;
    height: 40px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.trust-text {
    font-size: 0.9rem;
    color: var(--gray);
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: var(--primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 25px;
    background: rgba(17, 24, 39, 0.7);
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    position: relative;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.timeline-content::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background: var(--primary);
    top: 25px;
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.7);
}

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

.timeline-date {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 5px;
}

.timeline-role {
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: rgba(17, 24, 39, 0.7);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-content {
    padding: 25px;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.project-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 15px 0;
}

.tool-tag {
    background: rgba(59, 130, 246, 0.1);
    color: var(--secondary);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Education Section */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.education-card {
    background: rgba(17, 24, 39, 0.7);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.education-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.education-degree {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.education-thesis {
    font-style: italic;
    margin: 15px 0;
    padding: 15px;
    background: rgba(16, 185, 129, 0.05);
    border-left: 3px solid var(--primary);
    border-radius: 0 5px 5px 0;
}

/* Certifications Section */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.cert-card {
    background: rgba(17, 24, 39, 0.7);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(30px);
}

.cert-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.cert-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.cert-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.cert-org {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(17, 24, 39, 0.7);
    border-radius: 8px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--dark);
    flex-shrink: 0;
}

/* WhatsApp Contact */
.whatsapp-contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
    background: rgba(17, 24, 39, 0.7);
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.whatsapp-icon {
    font-size: 4rem;
    color: #25D366;
    margin-bottom: 20px;
    animation: whatsapp-pulse 2s infinite;
}

@keyframes whatsapp-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.whatsapp-text {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light);
}

.whatsapp-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 25px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.whatsapp-number:hover {
    color: var(--primary-light);
    transform: scale(1.05);
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 25px;
    background: #25D366;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.whatsapp-btn:hover {
    background: #128C7E;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
}

/* Footer */
footer {
    background: rgba(10, 15, 28, 0.9);
    padding: 50px 0 30px;
    text-align: center;
    position: relative;
    z-index: 2;
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    animation: pulse 2s infinite; /* glow animation */
}

.footer-logo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: rotate 6s linear infinite; /* rotating logo */
}

/* glowing pulse */
@keyframes pulse {
    0% { box-shadow: 0 0 12px rgba(16,185,129,0.6); }
    50% { box-shadow: 0 0 25px rgba(16,185,129,0.9); }
    100% { box-shadow: 0 0 12px rgba(16,185,129,0.6); }
}

/* slow rotation */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}



.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
}

.footer-logo-text span {
    color: var(--primary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 25px 0;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(17, 24, 39, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
}

.copyright {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 20px;
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 100;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-content, .contact-container {
        grid-template-columns: 1fr;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-content::after {
        left: -10px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .stat-item {
        flex: 0 0 calc(50% - 20px);
    }
    
    .trust-indicators {
        flex-wrap: wrap;
        gap: 15px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .profession-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        padding: 0 10px;
    }
    
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 15, 28, 0.95);
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
        backdrop-filter: blur(10px);
    }
    
    nav ul.show {
        display: flex;
    }
    
    nav ul li {
        margin: 10px 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-secondary {
        margin-left: 0;
    }
    
    .profile-img {
        width: 200px;
        height: 200px;
    }
    
    .hero-content, .about, .services, .research {
        padding: 30px 20px;
    }
    
    .security-badge {
        position: relative;
        top: 0;
        right: 0;
        margin: bottom 12px;
    }

}