/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Poppins:wght@500;600;700&display=swap');

/* CSS Variables for consistent theming */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #1e293b;
    --accent-color: #3b82f6;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --background-light: #f8fafc;
    --background-white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --transition: all 0.3s ease;
}

/* 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: var(--text-primary);
    background-color: var(--background-light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;   
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 2rem;
    color: var(--secondary-color);
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin-top: 0.5rem;
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* Header styles */
header {
    background-color: var(--background-white);
    padding: 2rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

/* Navigation */
nav {
    background-color: var(--background-white);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
}

nav a:hover {
    color: var(--primary-color);
    background-color: var(--background-light);
}

/* Section styles */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-content img {
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

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

/* Skills section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-card {
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.skill-card ul {
    list-style: none;
}

.skill-card li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.skill-card li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* Projects section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--background-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 1.5rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.project-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.project-info a:hover {
    color: var(--primary-dark);
    gap: 0.75rem;
}

/* Contact section */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

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

input, textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-family: inherit;
    transition: var(--transition);
}

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

button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-family: inherit;
    transition: var(--transition);
    width: 100%;
}

button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

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

/* Responsive design */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    section {
        padding: 3rem 1rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

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

section {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Timeline styles */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 100%;
}

.timeline-date {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    z-index: 1;
}

.timeline-content {
    width: calc(50% - 2rem);
    padding: 2rem;
    background-color: var(--background-white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
}

.timeline-content h4 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Achievements section */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.achievement-card {
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

/* Contact page styles */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    padding: 2rem;
    background-color: var(--background-white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

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

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.social-links a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    transition: var(--transition);
}

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

/* Project tech tags */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

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

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

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

.certification-card {
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

/* Availability section */
.availability-content {
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    max-width: 600px;
    margin: 0 auto;
}

.availability-content ul {
    list-style: none;
    margin: 1rem 0;
}

.availability-content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.availability-content li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        padding-left: 2rem;
    }

    .timeline-date {
        left: 0;
        transform: none;
    }

    .timeline-content {
        width: 100%;
        margin-left: 0;
    }

    .project-links {
        flex-direction: column;
    }
}