/* General Styles */
:root {
    --light-bg: #F8F9FA;
    --light-text: #343A40;
    --light-secondary-text: #6C757D;
    --light-accent: #007BFF;

    --dark-bg: #1A1A1A;
    --dark-text: #EAEAEA;
    --dark-secondary-text: #B0B0B0;
    --dark-accent: #00BFFF;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--light-bg);
    color: var(--light-text);
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-theme {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    margin-top: 0;
}

a {
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

body.dark-theme a {
    color: var(--dark-text);
}

a:hover {
    color: var(--light-accent);
}

body.dark-theme a:hover {
    color: var(--dark-accent);
}

/* Header and Navigation */
.main-header {
    background-color: var(--light-bg);
    padding: 1rem 0;
    border-bottom: 1px solid #E9ECEF;
    position: sticky;
    top: 0;
    z-index: 100;
}

body.dark-theme .main-header {
    background-color: var(--dark-bg);
    border-bottom: 1px solid #444;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1.5rem;
}

/* Theme Switch */
.theme-switch {
    display: flex;
    align-items: center;
    position: relative;
    width: 60px;
    height: 34px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-switch label {
    cursor: pointer;
    background-color: #ccc;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 34px;
    transition: 0.4s;
}

.theme-switch label:before {
    content: '';
    position: absolute;
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    border-radius: 50%;
    transition: 0.4s;
}

input:checked + label {
    background-color: var(--dark-accent);
}

input:checked + label:before {
    transform: translateX(26px);
}

/* Hero Section */
.hero-section {
    background-color: #F0F2F5; /* A subtle, light gray background */
    padding: 6rem 0;
    text-align: center;
}

body.dark-theme .hero-section {
    background-color: #282828;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

@media (min-width: 768px) {
    .hero-container {
        flex-direction: row;
        text-align: left;
    }
}

.hero-content {
    flex: 1;
}

.greeting {
    font-size: 1.5rem;
    color: var(--light-secondary-text);
}

body.dark-theme .greeting {
    color: var(--dark-secondary-text);
}

.job-title {
    font-size: 3rem;
    font-weight: bold;
    color: var(--light-accent);
}

body.dark-theme .job-title {
    color: var(--dark-accent);
}

.job-title .wrap {
    border-right: 0.08em solid var(--light-accent);
}

body.dark-theme .job-title .wrap {
    border-right: 0.08em solid var(--dark-accent);
}

.bio {
    font-size: 1.2rem;
    line-height: 1.5;
    margin-top: 1rem;
}

.profile-pic {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--light-accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: border-color 0.3s ease;
}

body.dark-theme .profile-pic {
    border: 5px solid var(--dark-accent);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

/* Content Sections */
.content-section {
    padding: 4rem 0;
}

/* Footer */
.main-footer {
    background-color: var(--light-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid #E9ECEF;
}

body.dark-theme .main-footer {
    background-color: var(--dark-bg);
    border-top: 1px solid #444;
}

.footer-container p {
    margin: 0;
    color: var(--light-secondary-text);
}

body.dark-theme .footer-container p {
    color: var(--dark-secondary-text);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .main-nav {
        display: none; /* Hide navigation on small screens for simplicity */
    }
}