/* Base Styles & Variables */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #4f46e5;
    --text-color: #1F2937;
    --light-text: #6B7280;
    --bg-color: #F9FAFB;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans', -apple-system, system-ui, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background: var(--bg-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: 0.5px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
}

ul {
    list-style-position: inside;
    margin-bottom: 1rem;
}

/* Layout */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

section:nth-child(even) {
    background-color: var(--white);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 5rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo:hover {
    color: var(--primary-dark);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

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

/* Hero Section */
.hero {
    padding-top: 8rem;
    padding-bottom: 4rem;
    text-align: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.1;
}

.profile-image {
    width: 180px;
    height: 180px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--white);
    box-shadow: var(--shadow-lg);
}

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

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

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--white);
    font-weight: 700;
}

.hero-title {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    margin: 0 0.5rem;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.primary {
    background: var(--white);
    color: var(--primary-color);
}

.secondary {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.primary:hover {
    background: var(--primary-color);
    color: var(--white);
}

.secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-color);
}

.education-info {
    margin-top: 2rem;
}

.education-item {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-top: 1rem;
    box-shadow: var(--shadow-sm);
}

.education-item h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.gpa {
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

.contact-info h3 {
    color: var(--text-color);
    margin-top: 2rem;
    margin-bottom: 1.5rem;
}

.info-item {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.info-item .label {
    font-weight: 500;
    color: var(--secondary-color);
    margin-right: 1rem;
    min-width: 70px;
}

.info-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.info-item a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.language-list {
    list-style: none;
}

.language-list li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.language-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skills-category {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skills-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.skills-category h3 {
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

.skills-list {
    list-style: none;
}

.skills-list li {
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
}

.skills-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

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

.project-card {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-date {
    color: var(--light-text);
    font-size: 0.9rem;
    background: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.project-role {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
    font-style: italic;
}

.project-details {
    list-style: none;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-details li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.project-details li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

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

.btn-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.btn-link:hover {
    color: var(--secondary-color);
}

.btn-link::after {
    content: '→';
    margin-left: 0.25rem;
    transition: var(--transition);
}

.btn-link:hover::after {
    transform: translateX(3px);
}

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

.certification-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.certification-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
}

.certification-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.certification-card h3 {
    color: var(--text-color);
    margin-bottom: 0.75rem;
}

.cert-issuer {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.cert-date {
    color: var(--light-text);
    font-size: 0.9rem;
}

/* Activities Section */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.activity-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.activity-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.achievements, .hackathons {
    margin-top: 3rem;
}

.achievements h3, .hackathons h3 {
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.achievements h3::after, .hackathons h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

.achievements-list, .hackathons-list {
    list-style: none;
}

.achievements-list li, .hackathons-list li {
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.5;
}

.achievements-list li::before {
    content: '🏆';
    position: absolute;
    left: 0;
}

.hackathons-list li::before {
    content: '💻';
    position: absolute;
    left: 0;
}

/* Contact Form */
.contact {
    background: var(--bg-color);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

input,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: var(--transition);
    font-family: inherit;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
.footer {
    background: #1a1f2e;
    color: #fff;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
    color: #2563eb;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: rgba(37, 99, 235, 0.2);
    color: #2563eb;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    .skills-grid,
    .certifications-grid,
    .activities-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        text-align: center;
    }
    
    .info-item {
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    section {
        padding: 4rem 0;
    }
}

@media (max-width: 576px) {
    .hero {
        padding-top: 6rem;
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f172a;
        --text-color: #f1f5f9;
        --light-text: #cbd5e1;
        --border-color: #334155;
        --white: #1e293b;
    }
    
    .navbar {
        background: rgba(15, 23, 42, 0.95);
    }
    
    input,
    textarea {
        background: #1e293b;
        color: var(--text-color);
    }
    
    .project-card,
    .certification-card,
    .activity-card {
        background: #1e293b;
    }
    
    .project-date {
        background: #0f172a;
    }
} 
.project-details{
    list-style: none;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}
/* Mobile Navigation */
@media (max-width: 768px) {
    .navbar .container {
        position: relative;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 1rem 0;
        flex-direction: column;
        align-items: center;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        max-height: 500px;
        opacity: 1;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: 0.75rem 0;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        color: var(--primary-color);
        font-size: 1.25rem;
        cursor: pointer;
        transition: var(--transition);
        background: transparent;
        border: none;
        outline: none;
    }
    
    .mobile-menu-toggle:hover {
        color: var(--primary-dark);
    }
    
    .mobile-menu-toggle.active {
        color: var(--primary-dark);
    }
    
    /* Dark mode support for mobile nav */
    @media (prefers-color-scheme: dark) {
        .nav-links {
            background: var(--bg-color);
        }
    }
}

/* Error messages for form validation */
.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Additional responsive fixes */
@media (max-width: 576px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .info-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .info-item .label {
        margin-bottom: 0.25rem;
    }
    
    .project-links {
        flex-direction: column;
    }
    
    .project-links .btn-link {
        margin-bottom: 0.5rem;
    }
    
    .hero h1 {
        font-size: 1.875rem;
    }
    
    .hero-title {
        font-size: 1.25rem;
    }
    
    .profile-image {
        width: 150px;
        height: 150px;
    }
}

/* Page transitions */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--primary-color);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.scroll-to-top.active {
    opacity: 1;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background-color: var(--primary-dark);
}

/* Theme toggle button */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    box-shadow: var(--shadow-md);
    transition: background-color 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--primary-dark);
}

/* Dark mode class for manual toggling */
body.dark-mode {
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --light-text: #cbd5e1;
    --border-color: #334155;
    --white: #1e293b;
}

body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.95);
}

body.dark-mode input,
body.dark-mode textarea {
    background: #1e293b;
    color: var(--text-color);
}

body.dark-mode .project-card,
body.dark-mode .certification-card,
body.dark-mode .activity-card {
    background: #1e293b;
}