/* Global Styles */
:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-blue: #93c5fd;
    --white: #ffffff;
    --gray: #f3f4f6;
    --dark-gray: #4b5563;
    --success: #10b981;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-blue);
}

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

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

.nav-links a:hover {
    color: var(--secondary-blue);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    display: flex;
    align-items: flex-start;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 1rem;
    position: relative;
}

.profile-image {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    overflow: hidden;
    margin: 3rem auto 1.5rem auto;
    border: 6px solid var(--white);
    box-shadow: 0 8px 24px rgba(30, 58, 138, 0.25), 0 1.5px 8px rgba(59, 130, 246, 0.15);
    transition: transform 0.4s cubic-bezier(.25,.8,.25,1), box-shadow 0.4s;
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, var(--white) 60%, var(--light-blue) 100%);
    animation: pop-in 1s cubic-bezier(.25,.8,.25,1);
}

@keyframes pop-in {
    0% { transform: scale(0.7) translateY(-40px); opacity: 0; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

.profile-image:hover {
    transform: scale(1.07) rotate(-2deg);
    box-shadow: 0 16px 32px rgba(30, 58, 138, 0.35), 0 3px 16px rgba(59, 130, 246, 0.25);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(10%) contrast(1.1);
    transition: filter 0.4s;
}

.profile-image:hover img {
    filter: grayscale(0%) contrast(1.2) brightness(1.05);
}

.hero-content h1, .hero-content h2 {
    opacity: 0;
    transform: translateY(30px);
    animation: fade-in-up 1s forwards;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation-delay: 0.3s;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--light-blue);
    animation-delay: 0.6s;
}

@keyframes fade-in-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fade-in-up 1s forwards;
    animation-delay: 0.9s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.3s ease;
}

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

.cta-button:hover {
    transform: translateY(-3px);
}

/* Sections */
section {
    padding: 5rem 2rem;
}

.section-title {
    text-align: center;
    color: var(--primary-blue);
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

/* About Section */
.about {
    background-color: var(--gray);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    color: var(--primary-blue);
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.about-text ul {
    list-style-position: inside;
    margin: 1rem 0;
}

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

/* Education Section */
.education {
    background-color: var(--white);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.education-card {
    background-color: var(--gray);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.education-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.education-card .institution {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.education-card .year {
    color: var(--secondary-blue);
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.education-card .percentage {
    font-size: 1.2rem;
    color: var(--success);
    font-weight: bold;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skill-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.skill-card i {
    font-size: 3rem;
    color: var(--secondary-blue);
    margin-bottom: 1rem;
}

/* Projects Section */
.projects {
    background-color: var(--gray);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.project-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.project-features {
    list-style-position: inside;
    margin: 1rem 0;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-stack span {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.875rem;
}

.company, .duration, .certification, .institution {
    color: var(--secondary-blue);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

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

input, textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--dark-gray);
    border-radius: 5px;
    font-size: 1rem;
}

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

.submit-btn {
    background-color: var(--secondary-blue);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: var(--primary-blue);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.social-link {
    color: var(--primary-blue);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

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

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: var(--white);
    text-align: center;
    padding: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 1rem;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content h2 {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    section {
        padding: 3rem 1rem;
    }

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

    .profile-image {
        width: 140px;
        height: 140px;
        margin-top: 2rem;
    }
}