/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

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

.nav-logo h2 {
    color: #3b82f6;
    font-weight: 700;
    font-size: 1.5rem;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #3b82f6;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

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

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-location {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: white;
    color: #3b82f6;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease 0.8s both;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.profile-image:hover img {
    transform: scale(1.05);
}

.profile-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.profile-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

.profile-placeholder i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.9);
    z-index: 2;
    position: relative;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

/* About Section */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #4b5563;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
}

.stat h3 {
    font-size: 2.5rem;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #6b7280;
    font-weight: 500;
}

/* Experience Section */
.experience {
    background: #f8fafc;
}

.experience-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.experience-timeline {
    position: relative;
    padding-left: 60px;
}

.timeline-line {
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6, #06b6d4);
    border-radius: 1px;
}

.experience-item {
    position: relative;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
}

.experience-marker {
    position: absolute;
    left: -45px;
    top: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: #3b82f6;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #3b82f6;
    z-index: 2;
}

.marker-year {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.experience-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    flex: 1;
}

.experience-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(59, 130, 246, 0.2);
}

.card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    position: relative;
}

.card-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6);
    transition: all 0.3s ease;
}

.card-header:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.card-header:hover::before {
    width: 6px;
}

.header-content h3 {
    color: #1f2937;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.header-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.company {
    color: #3b82f6;
    font-weight: 600;
    font-size: 0.9rem;
}

.duration, .location {
    color: #6b7280;
    font-size: 0.85rem;
}

.expand-icon {
    color: #6b7280;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.card-header.expanded .expand-icon {
    transform: rotate(180deg);
    color: #3b82f6;
}

.card-content {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    padding: 0 2rem;
}

.card-content.expanded {
    max-height: 200px;
    padding: 1.5rem 2rem;
    border-top: 1px solid #e5e7eb;
}

.card-content p {
    color: #4b5563;
    line-height: 1.7;
    font-size: 0.95rem;
    margin: 0;
}

.timeline-description {
    margin-top: 1rem;
}

.timeline-description p {
    color: #4b5563;
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
}

/* Education Section */
.education {
    background: white;
    position: relative;
}

.education::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.05;
    z-index: 0;
}

.education .container {
    position: relative;
    z-index: 1;
}

.education-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 2rem;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6, #06b6d4);
    border-radius: 2px;
}

.education-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: flex-start;
}

.education-marker {
    position: relative;
    margin-right: 2rem;
    flex-shrink: 0;
}

.marker-dot {
    width: 20px;
    height: 20px;
    background: #3b82f6;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 3px #3b82f6;
    position: relative;
    z-index: 2;
}

.education-item.current .marker-dot {
    background: #10b981;
    box-shadow: 0 0 0 3px #10b981;
    animation: pulse 2s infinite;
}

.marker-line {
    width: 3px;
    height: 60px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6);
    margin: 10px auto 0;
    border-radius: 2px;
}

.education-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    flex: 1;
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}

.education-item.current .education-card::before {
    background: linear-gradient(90deg, #10b981, #06b6d4);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

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

.education-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.education-item.current .education-icon {
    background: linear-gradient(135deg, #10b981, #06b6d4);
}

.education-badge {
    background: linear-gradient(135deg, #10b981, #06b6d4);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.education-badge.completed {
    background: linear-gradient(135deg, #6b7280, #9ca3af);
}

.education-content h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.institution {
    color: #3b82f6;
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.duration {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.education-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.detail-tag {
    background: #f3f4f6;
    color: #4b5563;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid #e5e7eb;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* Skills Section */
.skills {
    background: #f8fafc;
}

.skills-category {
    margin-bottom: 3rem;
}

.skills-category h3 {
    color: #1f2937;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.skill-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.skill-item:hover::before {
    left: 100%;
}

.skill-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: #3b82f6;
}

.skill-item i {
    font-size: 2rem;
    color: #3b82f6;
    margin-bottom: 0.5rem;
    display: block;
}

.skill-item span {
    font-weight: 500;
    color: #4b5563;
}

/* Certifications Section */
.certifications {
    background: white;
}

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

.certification-card {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.certification-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.certification-card:hover::before {
    transform: scaleX(1);
}

.certification-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.certification-icon {
    width: 60px;
    height: 60px;
    background: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.certification-icon i {
    font-size: 1.5rem;
    color: white;
}

.certification-card h3 {
    color: #1f2937;
    font-size: 1rem;
    line-height: 1.4;
}

/* Contact Section */
.contact {
    background: #f8fafc;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #e5e7eb;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.contact-card:hover::before {
    transform: scaleX(1);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.contact-card h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.contact-card p {
    color: #6b7280;
    font-size: 0.95rem;
    margin: 0;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

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

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

        .experience-timeline {
        padding-left: 40px;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .experience-marker {
        left: -30px;
    }
    
    .marker-dot {
        width: 12px;
        height: 12px;
    }
    
    .marker-year {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    .card-header {
        padding: 1rem 1.5rem;
    }
    
    .card-content.expanded {
        padding: 1rem 1.5rem;
    }
    
    .header-meta {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .company, .duration, .location {
        font-size: 0.8rem;
    }

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

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .education-timeline {
        padding-left: 1rem;
    }
    
    .education-timeline::before {
        left: 10px;
    }
    
    .education-marker {
        margin-right: 1rem;
    }
    
    .education-card {
        padding: 1.5rem;
    }
    
    .education-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .education-details {
        justify-content: flex-start;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.flag-span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  width: 1.8em;
  height: 1.3em;
  margin: 0 0.2em;
  overflow: hidden;
  perspective: 500px;
}

.flag-icon {
  /* Transform for 3D tilt */
  transform: rotateX(15deg) rotateY(-10deg) rotateZ(5deg);
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.flag-span:hover .flag-icon {
  transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale(1.1);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.3);
}