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

:root {
    --sidebar-bg: #2c5f7d;
    --sidebar-hover: #3a7a9d;
    --accent-color: #4a90b8;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f5f5f5;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

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

/* Container and Layout */
.container {
    display: flex;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    background-color: var(--white);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Sidebar Styles */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    padding: 40px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
    padding: 0 20px;
}

.avatar {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.2);
    object-fit: cover;
    margin-bottom: 20px;
}

.sidebar-name {
    color: var(--white);
    font-size: 20px;
    font-weight: 400;
    text-align: center;
    letter-spacing: 0.5px;
    line-height: 1.4;
}

.nav-menu {
    display: flex;
    flex-direction: column;
}

.nav-item {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 15px 30px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: var(--sidebar-hover);
    color: var(--white);
    border-left-color: var(--white);
}

/* Main Content Styles */
.main-content {
    flex: 1;
    padding: 60px 80px;
    overflow-y: auto;
}

/* Header Styles */
.header {
    margin-bottom: 40px;
}

.header-content {
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 20px;
}

.name {
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 10px;
}

.first-name {
    color: var(--text-dark);
    font-weight: 300;
}

.last-name {
    color: var(--accent-color);
    font-weight: 600;
}

.location-email {
    font-size: 14px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.location,
.phone {
    color: var(--text-light);
}

.location {
    font-size: 14px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.header-contact-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.header-contact-button:hover {
    background-color: var(--sidebar-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.contact-button {
    color: var(--white);
    background-color: var(--accent-color);
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 13px;
}

.contact-button:hover {
    background-color: var(--sidebar-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.email {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.email:hover {
    color: var(--sidebar-bg);
}

/* Section Styles */
.section {
    margin-bottom: 50px;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
}

.content-area {
    padding: 10px 0;
}

.headline {
  font-size: 2rem;
  font-weight: 600;
}


/* Bio and Social Links */
.bio {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 50px;
    height: 50px;
    background-color: var(--text-dark);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

/* Skills Section */
.subsection-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-top: 20px;
    margin-bottom: 10px;
}

.content-area p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

/* Projects, Open Source, Publications */
.project-item,
.contribution-item,
.publication-item {
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 1px solid #e0e0e0;
}

.project-item:last-child,
.contribution-item:last-child,
.publication-item:last-child {
    border-bottom: none;
}

.project-title,
.contribution-title,
.publication-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.project-description,
.contribution-description,
.publication-description {
    color: var(--text-light);
    line-height: 1.8;
}

.publication-details {
    font-size: 14px;
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 8px;
}

/* Experience Section */
.experience-item {
    margin-bottom: 35px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e0e0e0;
}

.experience-item:last-child {
    border-bottom: none;
}

.job-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.company-period {
    font-size: 14px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.responsibilities {
    list-style-position: outside;
    margin-left: 20px;
    color: var(--text-light);
}

.responsibilities li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Education Section */
.education-item {
    margin-bottom: 30px;
}

.degree {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.school-period {
    font-size: 14px;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.education-details {
    color: var(--text-light);
    line-height: 1.8;
}

/* Competencies Section */
.competencies-list {
    color: var(--text-light);
    line-height: 1.9;
    font-size: 15px;
}

/* Certifications */
.certification-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.certifications-list {
    list-style: none;
    margin-left: 0;
    color: var(--text-light);
}

.certifications-list li {
    margin-bottom: 10px;
    line-height: 1.6;
}

/* Grants & Awards Section */
.grants-list,
.awards-list {
    list-style-position: outside;
    margin-left: 20px;
    color: var(--text-light);
    margin-bottom: 25px;
}

.grants-list li,
.awards-list li {
    margin-bottom: 10px;
    line-height: 1.7;
}

/* Leadership Section */
.leadership-item {
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 1px solid #e0e0e0;
}

.leadership-item:last-child {
    border-bottom: none;
}

.leadership-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.leadership-role {
    font-size: 14px;
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 8px;
}

.leadership-description {
    color: var(--text-light);
    line-height: 1.8;
}

/* Publications Section */
.publications-summary {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.publications-link {
    margin-bottom: 25px;
}

.publications-link a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.publications-link a:hover {
    color: var(--sidebar-bg);
    text-decoration: underline;
}

.publications-list,
.presentations-list {
    list-style: none;
    margin-left: 0;
    color: var(--text-light);
}

.publications-list li,
.presentations-list li {
    margin-bottom: 15px;
    line-height: 1.7;
    padding-left: 20px;
    position: relative;
}

.publications-list li:before,
.presentations-list li:before {
    content: "•";
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Contact Section */
.contact-form-container {
    max-width: 700px;
    margin: 0 auto;
}

.contact-intro {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
    text-align: center;
}

.contact-form {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    font-size: 15px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    border: 1px solid #d0d0d0;
    border-radius: 4px;
    background-color: var(--white);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 184, 0.1);
}

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

.submit-button {
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    padding: 14px 40px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.submit-button:hover {
    background-color: var(--sidebar-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.submit-button:active {
    transform: translateY(0);
}

.contact-alternative {
    margin-top: 30px;
    text-align: center;
    color: var(--text-light);
    font-size: 15px;
}

.contact-alternative a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-alternative a:hover {
    color: var(--sidebar-bg);
    text-decoration: underline;
}

/* Legacy contact placeholder (kept for backwards compatibility) */
.contact-placeholder {
    text-align: center;
    padding: 60px 40px;
    background-color: var(--bg-light);
    border-radius: 8px;
    max-width: 700px;
    margin: 0 auto;
}

.placeholder-text {
    color: var(--text-light);
    font-size: 18px;
    line-height: 1.8;
    margin: 0;
}

.placeholder-text i {
    font-size: 48px;
    color: var(--accent-color);
    display: block;
    margin-bottom: 20px;
}

.placeholder-text a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.placeholder-text a:hover {
    color: var(--sidebar-bg);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-content {
        padding: 40px 50px;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 30px 0;
    }

    .avatar {
        width: 120px;
        height: 120px;
    }

    .sidebar-name {
        font-size: 18px;
    }

    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        padding: 0 20px;
    }

    .nav-item {
        padding: 10px 15px;
        border-left: none;
        border-bottom: 2px solid transparent;
    }

    .nav-item:hover {
        border-left-color: transparent;
        border-bottom-color: var(--white);
    }

    .main-content {
        padding: 30px 25px;
    }

    .name {
        font-size: 36px;
    }

    .section-title {
        font-size: 24px;
    }

    .contact-form {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 20px 15px;
    }

    .name {
        font-size: 28px;
    }

    .location-email {
        font-size: 12px;
    }

    .section-title {
        font-size: 22px;
    }

    .contact-form {
        padding: 25px 15px;
    }

    .submit-button {
        padding: 12px 30px;
    }
}