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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.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;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: #BF5700;
    text-decoration: none;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

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

.nav-link:hover {
    color: #BF5700;
}

.nav-link-highlighted {
    color: #BF5700 !important;
}

.nav-link-highlighted::after {
    width: 100% !important;
}

/* Dropdown Menu Styles */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 12px 16px;
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f3f4f6;
}

.dropdown-link:last-child {
    border-bottom: none;
}

.dropdown-link:hover {
    background: #f9fafb;
    color: #BF5700;
}

/* Responsive dropdown */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        opacity: 0;
        visibility: hidden;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        margin-left: 20px;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease;
    }
    
    .dropdown-menu.active {
        opacity: 1;
        visibility: visible;
        max-height: 200px;
    }
    
    .dropdown-link {
        padding: 8px 0;
        border-bottom: none;
    }
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #BF5700;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.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, #BF5700 0%, #d46a00 100%);
    color: white;
    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 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-container {
    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: 1;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: #fbbf24;
    background: linear-gradient(45deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    color: #e5e7eb;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #d1d5db;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.hero-social-links {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
}

.hero-social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-social-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.hero-social-link i {
    font-size: 1.1rem;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: #BF5700;
    color: white;
    border-color: #BF5700;
}

.btn-primary:hover {
    background: transparent;
    color: #BF5700;
    border-color: #BF5700;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(191, 87, 0, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #BF5700;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

.profile-card {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(45deg);
}

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

/* Section Styles */
section {
    padding: 5rem 0;
}

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

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #BF5700, #D2691E);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* About Section */
.about {
    background: #f9fafb;
}

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

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #6b7280;
    line-height: 1.8;
}

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

.stat {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #BF5700;
    margin-bottom: 0.5rem;
}

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

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Skills Section */
.skills {
    background: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.skill-category {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

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

.skill-item {
    background: #BF5700;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: #3730a3;
    transform: translateY(-2px);
}

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

.education-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.education-info {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.university h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.degree {
    font-size: 1.1rem;
    font-weight: 500;
    color: #BF5700;
    margin-bottom: 0.5rem;
}

.dates, .gpa {
    color: #6b7280;
    margin-bottom: 0.3rem;
}

.previous-education {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #e5e7eb;
}

.previous-education h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.education-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, #e2e8f0, transparent);
    margin: 1.5rem 0;
}

.track-highlight {
    color: #BF5700 !important;
    font-weight: 600;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.course-category {
    background: #f9fafb;
    padding: 1.5rem;
    border-radius: 15px;
    border-left: 4px solid #BF5700;
}

.course-category h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.course-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.course-item {
    background: white;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    color: #374151;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.course-item:hover {
    border-color: #BF5700;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.1);
}

/* Experience Section */
.experience {
    background: white;
}

.experience-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.experience-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.experience-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 80px;
    top: 60px;
    bottom: -3rem;
    width: 2px;
    background: linear-gradient(to bottom, #BF5700, #D2691E);
}

.experience-date {
    flex-shrink: 0;
    width: 160px;
    text-align: right;
}

.experience-date .date {
    background: linear-gradient(45deg, #BF5700, #D2691E);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-block;
    white-space: nowrap;
}

.experience-content {
    flex: 1;
    background: #f9fafb;
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid #BF5700;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.experience-content:hover {
    transform: translateY(-5px);
}

.experience-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.experience-content h4 {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 1rem;
    font-weight: 500;
}

.experience-content ul {
    list-style: none;
    padding: 0;
}

.experience-content li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: #6b7280;
    line-height: 1.6;
}

.experience-content li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #BF5700;
    font-size: 0.8rem;
}

/* Achievements Section */
.achievements {
    background: #f9fafb;
}

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

.achievement-category {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.achievement-category h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.achievement-category h3 i {
    color: #BF5700;
}

.achievement-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.achievement-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.achievement-item:hover {
    background: #f3f4f6;
    transform: translateX(5px);
}

.achievement-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #BF5700, #D2691E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.achievement-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.3rem;
}

.issuer {
    font-size: 0.9rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.description {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.4;
}

.language-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.language-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.language-item:hover {
    background: #f3f4f6;
    transform: translateX(5px);
}

.language-name {
    font-weight: 600;
    color: #1f2937;
    font-size: 1rem;
}

.proficiency {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.proficiency.native {
    background: #dcfce7;
    color: #166534;
}

.organization-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.organization-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.organization-item:hover {
    background: #f3f4f6;
    transform: translateX(5px);
}

.org-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.org-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.3rem;
}

.org-duration {
    font-size: 0.9rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.org-description {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.4;
}

/* Projects Section */
.projects {
    background: #f9fafb;
}

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

.project-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.project-image {
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(79, 70, 229, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-image {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-image:hover .image-overlay {
    opacity: 1;
}

.image-overlay i {
    color: white;
    font-size: 2rem;
}

.project-link {
    color: white;
    font-size: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.project-link:hover {
    background: white;
    color: #BF5700;
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.project-content p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tech span {
    background: #e5e7eb;
    color: #374151;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Section */
.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.contact-info p {
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: #6b7280;
}

.contact-item i {
    color: #BF5700;
    width: 20px;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link:hover {
    background: #BF5700;
    color: white;
    transform: translateY(-3px);
}

.contact-form {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #BF5700;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

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

/* Projects Section */
.projects {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

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

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

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.project-content p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

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

.project-link {
    color: #BF5700;
    text-decoration: none;
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border: 2px solid #BF5700;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.project-link:hover {
    background: #BF5700;
    color: white;
}

/* Skills Section */
.skills {
    padding: 100px 0;
    background: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
    text-align: center;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.skill-item {
    background: white;
    color: #4f46e5;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: #4f46e5;
    color: white;
    border-color: #4f46e5;
    transform: translateY(-2px);
}

/* Recommendations Section */
.recommendations {
    padding: 80px 0;
    background: white;
}

.recommendations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.recommendation-card {
    background: #f8fafc;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-left: 4px solid #3b82f6;
}

.recommendation-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.recommendation-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.recommender-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.recommender-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.recommender-avatar i {
    font-size: 1.5rem;
    color: white;
}

.recommender-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.recommender-details h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.3rem;
}

.recommender-name-link {
    color: #1e293b;
    text-decoration: underline;
    transition: color 0.3s ease;
}

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

.recommender-title {
    font-size: 1rem;
    color: #64748b;
    margin-bottom: 0.3rem;
}

.recommendation-date {
    font-size: 0.9rem;
    color: #94a3b8;
    font-weight: 500;
}

.recommendation-badge {
    flex-shrink: 0;
}

.badge {
    background: #10b981;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.recommendation-content {
    margin-bottom: 1.5rem;
}

.recommendation-text {
    color: #475569;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    font-size: 1rem;
}

.recommendation-text:last-child {
    margin-bottom: 0;
}

.recommendation-footer {
    border-top: 1px solid #e2e8f0;
    padding-top: 1.5rem;
}

.relationship-badge {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .recommendations-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .recommendation-card {
        padding: 1.5rem;
    }
    
    .recommendation-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .recommender-info {
        width: 100%;
    }
    
    .recommendation-badge {
        align-self: flex-start;
    }
    
    .recommender-details h3 {
        font-size: 1.2rem;
    }
    
    .recommendation-text {
        font-size: 0.95rem;
    }
}

/* Volunteering Section */
.volunteering {
    padding: 80px 0;
    background: #f8fafc;
}

.volunteering-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.volunteer-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #3b82f6;
}

.volunteer-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.volunteer-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.volunteer-logo i {
    font-size: 1.5rem;
    color: white;
}

.volunteer-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.volunteer-content h4 {
    font-size: 1.1rem;
    color: #3b82f6;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.volunteer-date {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 1rem;
    font-weight: 500;
}

.volunteer-description {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.volunteer-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.volunteer-skills .skill-tag {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .volunteering-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .volunteer-card {
        padding: 1.5rem;
    }
    
    .volunteer-content h3 {
        font-size: 1.2rem;
    }
}

/* Certifications Section */
.certifications {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.certification-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #007bff;
}

.certification-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.cert-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 24px;
}

.cert-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    line-height: 1.3;
}

.cert-content h4 {
    font-size: 1rem;
    color: #007bff;
    font-weight: 500;
    margin-bottom: 10px;
}

.cert-date {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.credential-id {
    color: #BF5700;
    font-size: 0.85rem;
    margin-bottom: 15px;
    font-weight: 600;
    background: #f8f9fa;
    padding: 5px 10px;
    border-radius: 5px;
    border-left: 3px solid #BF5700;
}

.cert-description {
    color: #555;
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.pdf-viewer-btn {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-viewer-btn:hover {
    background: linear-gradient(135deg, #20c997, #28a745);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.cert-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.github-btn {
    background: #333;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.github-btn:hover {
    background: #555;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Image Modal Styles */
.image-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.image-modal-content {
    position: relative;
    margin: 2% auto;
    padding: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.image-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
}

.image-modal-close:hover,
.image-modal-close:focus {
    color: #000;
}

#modalImage {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 10px;
}

#modalCaption {
    margin-top: 15px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
}

@media (max-width: 768px) {
    .image-modal-content {
        width: 95%;
        margin: 5% auto;
        padding: 15px;
    }
    
    #modalImage {
        max-height: 60vh;
    }
    
    #modalCaption {
        font-size: 1rem;
    }
}

/* PDF Modal Styles */
.pdf-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.pdf-modal-content {
    background-color: white;
    margin: 2% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.pdf-modal-header {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 20px 30px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pdf-modal-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.pdf-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.pdf-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.pdf-modal-body {
    padding: 0;
    background: #f8f9fa;
}

.pdf-modal-footer {
    padding: 20px 30px;
    background: white;
    border-radius: 0 0 15px 15px;
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.pdf-modal-footer .btn {
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    border: none;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #007bff);
    transform: translateY(-2px);
}

/* Chatbot Styles */
.chatbot-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001;
    font-family: 'Inter', sans-serif;
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #BF5700, #d46a00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(191, 87, 0, 0.3);
    transition: all 0.3s ease;
    position: relative;
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(191, 87, 0, 0.4);
}

.chatbot-toggle i {
    color: white;
    font-size: 24px;
}

.chatbot-badge {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: white;
    color: #BF5700;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    opacity: 1;
    transform: translateY(0);
    transition: all 0.3s ease;
    pointer-events: auto;
    border: 2px solid #BF5700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chatbot-badge.hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
}

.badge-close {
    background: none;
    border: none;
    color: #BF5700;
    font-size: 16px;
    cursor: pointer;
    padding: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.badge-close:hover {
    background: #BF5700;
    color: white;
}

.chatbot-badge::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid white;
}

.chatbot-notification {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: #ff4444;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.chatbot-modal {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: none;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}

.chatbot-modal.active {
    display: flex;
}

.chatbot-header {
    background: linear-gradient(135deg, #BF5700, #d46a00);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 16px;
}

.chatbot-title i {
    font-size: 18px;
}

.chatbot-close {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.chatbot-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.chatbot-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
}

.user-message {
    align-self: flex-end;
}

.bot-message {
    align-self: flex-start;
}

.message-content {
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.4;
    word-wrap: break-word;
}

.user-message .message-content {
    background: linear-gradient(135deg, #BF5700, #d46a00);
    color: white;
    border-bottom-right-radius: 4px;
}

.bot-message .message-content {
    background: #f3f4f6;
    color: #374151;
    border-bottom-left-radius: 4px;
}

.message-time {
    font-size: 11px;
    color: #9ca3af;
    margin-top: 4px;
    padding: 0 4px;
}

.user-message .message-time {
    text-align: right;
}

.chatbot-input-container {
    padding: 15px 20px;
    border-top: 1px solid #e5e7eb;
    background: #f9fafb;
}

.chatbot-input {
    display: flex;
    gap: 10px;
    align-items: center;
}

.chatbot-input input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 25px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.chatbot-input input:focus {
    border-color: #BF5700;
}

.chatbot-input button {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #BF5700, #d46a00);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.chatbot-input button:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(191, 87, 0, 0.3);
}

.chatbot-input button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.chatbot-typing {
    display: none;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 10px 15px;
    background: #f3f4f6;
    border-radius: 15px;
    font-size: 13px;
    color: #6b7280;
}

.typing-indicator {
    display: flex;
    gap: 3px;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: #9ca3af;
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* Mobile Responsive for Chatbot */
@media (max-width: 768px) {
    .chatbot-container {
        bottom: 15px;
        right: 15px;
    }
    
    .chatbot-toggle {
        width: 50px;
        height: 50px;
    }
    
    .chatbot-toggle i {
        font-size: 20px;
    }
    
    .chatbot-badge {
        bottom: 60px;
        font-size: 11px;
        padding: 6px 10px;
    }
    
    .chatbot-modal {
        width: 300px;
        height: 450px;
        bottom: 70px;
        right: -10px;
    }
    
    .chatbot-messages {
        padding: 15px;
    }
    
    .message {
        max-width: 85%;
    }
}

@media (max-width: 480px) {
    .chatbot-modal {
        width: 280px;
        height: 400px;
        right: -20px;
    }
    
    .chatbot-messages {
        padding: 12px;
    }
    
    .message-content {
        font-size: 13px;
        padding: 10px 14px;
    }
}

/* 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;
    }

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

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

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

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

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .achievements-grid {
        grid-template-columns: 1fr;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .certification-card {
        padding: 20px;
    }

    .pdf-modal-content {
        width: 95%;
        margin: 5% auto;
    }

    .pdf-modal-header {
        padding: 15px 20px;
    }

    .pdf-modal-header h3 {
        font-size: 1.2rem;
    }

    .pdf-modal-footer {
        padding: 15px 20px;
        flex-direction: column;
        gap: 10px;
    }

    .pdf-modal-footer .btn {
        width: 100%;
    }

    .experience-item {
        flex-direction: column;
        gap: 1rem;
    }

    .experience-date {
        width: 100%;
        text-align: left;
    }

    .experience-item:not(:last-child)::after {
        display: none;
    }

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

    .profile-image {
        width: 250px;
        height: 250px;
    }
}

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

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

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

    .container {
        padding: 0 15px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        text-align: center;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}