:root {
    --primary-color: #1e40af;
    --secondary-color: #3b82f6;
    --accent-color: #06b6d4;
    --dark-bg: #0f172a;
    --light-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --gradient: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #06b6d4 100%);
    --glow-color: #00f6ff;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: url('images/background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,246,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.4;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--glow-color);
    border-radius: 50%;
    box-shadow: 
        0 0 10px var(--glow-color),
        0 0 20px var(--glow-color),
        0 0 30px var(--glow-color);
    animation: float-particles 20s infinite linear;
}

.particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particles::after {
    top: 60%;
    right: 20%;
    animation-delay: 10s;
}

@keyframes float-particles {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(15px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.nav-menu a:hover {
    color: var(--accent-color);
}

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

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    background: linear-gradient(45deg, var(--accent-color), var(--glow-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight {
    color: var(--glow-color);
    text-shadow: 0 0 30px rgba(0, 246, 255, 0.8);
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 5px 15px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
    background: #0891b2;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--dark-bg);
    transform: translateY(-3px);
}

/* Profile Image with Enhanced Effects */
.profile-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--glow-color);
    box-shadow: 
        0 0 30px rgba(0, 246, 255, 0.5),
        0 0 60px rgba(0, 246, 255, 0.3),
        0 0 90px rgba(0, 246, 255, 0.1);
    position: relative;
    z-index: 2;
    animation: profile-float 6s ease-in-out infinite;
}

@keyframes profile-float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.02); }
}

.profile-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    width: calc(100% + 40px);
    height: calc(100% + 40px);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 246, 255, 0.3) 0%, transparent 70%);
    animation: glow-pulse 3s ease-in-out infinite;
    z-index: 1;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.profile-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
}

.profile-particles::before,
.profile-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--glow-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--glow-color);
    animation: particle-orbit 8s infinite linear;
}

.profile-particles::before {
    top: 50%;
    left: 50%;
    transform-origin: -100px center;
}

.profile-particles::after {
    top: 50%;
    left: 50%;
    transform-origin: 100px center;
    animation-delay: -4s;
}

@keyframes particle-orbit {
    0% { transform: rotate(0deg) translateX(100px) rotate(0deg); opacity: 0; }
    25% { opacity: 1; }
    75% { opacity: 1; }
    100% { transform: rotate(360deg) translateX(100px) rotate(-360deg); opacity: 0; }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Sections */
.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.about, .skills, .projects, .certifications, .contact {
    padding: 6rem 0;
    position: relative;
}

/* About Section */
.about {
    background: var(--light-bg);
}

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

.about-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.stat h3 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

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

.skill-category {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

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

.skill-item {
    background: rgba(59, 130, 246, 0.2);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: rgba(59, 130, 246, 0.3);
    transform: scale(1.05);
}

/* Projects Section */
.projects {
    background: var(--light-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--dark-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    text-align: center;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 246, 255, 0.2);
}

.project-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.project-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Certifications */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 246, 255, 0.3);
}

.cert-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

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

.cert-card p {
    color: var(--text-secondary);
}

/* Contact Section */
.contact {
    background: var(--light-bg);
}

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

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    padding: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-3px);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

/* Footer */
footer {
    background: var(--dark-bg);
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    border-top: 1px solid rgba(59, 130, 246, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .profile-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

.hero-content > * {
    animation: fadeInUp 1s ease-out;
}

/* Additional Animations */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}
/* Transparent Background for Profile Text */
.hero-text {
    background: rgba(15, 23, 42, 0.7); /* 50% transparent dark blue */
    padding: 3rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 246, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Make text more visible */
.hero-title {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-subtitle {
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.hero-description {
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .hero-text {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}
/* Professional Certificate Styling */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: rgba(30, 41, 59, 0.8); /* Dark blue-gray, semi-transparent */
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(10px);
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 246, 255, 0.5);
    box-shadow: 0 15px 35px rgba(0, 246, 255, 0.2);
}

.cert-card i {
    font-size: 3rem;
    color: #06b6d4; /* Professional blue */
    margin-bottom: 1.5rem;
    display: block;
}

.cert-card h3 {
    color: #f8fafc; /* Clean white */
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.cert-card p {
    color: #cbd5e1; /* Light gray */
    font-size: 1rem;
    margin-bottom: 1rem;
}

.cert-link {
    display: inline-block;
    margin-top: 1rem;
    color: #06b6d4; /* Professional blue */
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.cert-card:hover .cert-link {
    color: #00f6ff; /* Glow color on hover */
    transform: translateX(5px);
}

/* Clickable certificates cursor */
.cert-card[onclick] {
    cursor: pointer;
}

/* Remove any colorful backgrounds or gradients */
.cert-card:nth-child(1),
.cert-card:nth-child(2),
.cert-card:nth-child(3) {
    background: rgba(30, 41, 59, 0.8); /* Same as others */
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-card {
        padding: 2rem 1.5rem;
    }
}
/* Enhanced Button Styling */
.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: #06b6d4;
    color: white;
    box-shadow: 0 5px 15px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
    background: #0891b2;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #0f172a;
    transform: translateY(-3px);
}

/* Button click animation */
.btn-primary:active, .btn-secondary:active {
    transform: scale(0.95);
}

/* Success state for download */
.btn-secondary.success {
    background: #4ade80 !important;
    border-color: #4ade80 !important;
    color: white !important;
}

/* Mobile responsive buttons */
@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary {
        width: 250px;
        justify-content: center;
    }
}