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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: transparent;
    color: #2d3748;
    line-height: 1.6;
    position: relative;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: #f0f7f4;
}

header, section, footer {
    position: relative;
    background: transparent;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    padding: 60px 0 40px;
    text-align: center;
    background: white;
    border-bottom: 2px solid #d4e8e0;
}

.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: #2d5a5e;
    text-decoration: none;
    font-size: 1.1em;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: #142223;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #142223;
}

.subtitle {
    font-size: 1.2em;
    color: #2d5a5e;
    margin-bottom: 20px;
}

h2 {
    font-size: 2em;
    margin-bottom: 30px;
    text-align: center;
    color: #142223;
}

section {
    padding: 60px 0;
}

/* Profile/Header Specific */
.profile-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid #142223;
    box-shadow: 0 10px 40px rgba(20, 34, 35, 0.3);
    display: block;
    object-fit: cover;
}

.social-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.social-links a {
    color: #142223;
    text-decoration: none;
    padding: 10px 20px;
    border: 2px solid #2d5a5e;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #142223;
    color: white;
}

/* Aircraft Overview */
.aircraft-overview {
    background: white;
    padding: 40px;
    border-radius: 15px;
    border: 1px solid #d4e8e0;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.1);
    margin-bottom: 60px;
}

.aircraft-overview h2 {
    color: #142223;
    font-size: 2em;
    margin-bottom: 20px;
}

.aircraft-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.aircraft-card {
    background: #f8fdfb;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #2d5a5e;
}

.aircraft-card h3 {
    color: #142223;
    margin-bottom: 10px;
}

.aircraft-card ul {
    list-style: none;
    margin-top: 10px;
}

.aircraft-card li {
    padding: 5px 0;
    color: #2d3748;
    position: relative;
    padding-left: 20px;
}

.aircraft-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #2d5a5e;
    font-weight: bold;
}

/* Content Cards */
.about-content,
.education-card,
.contact-info {
    background: white;
    padding: 40px;
    border-radius: 15px;
    border: 1px solid #d4e8e0;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-content:hover,
.education-card:hover,
.contact-info:hover {
    box-shadow: 0 10px 30px rgba(20, 34, 35, 0.15);
}

.about-content p {
    font-size: 1.1em;
    color: #2d3748;
    margin-bottom: 20px;
}

/* Experience Section */
.experience-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    border: 1px solid #d4e8e0;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.experience-item:hover {
    box-shadow: 0 10px 30px rgba(20, 34, 35, 0.15);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.experience-title {
    color: #142223;
    font-size: 1.5em;
    font-weight: bold;
}

.experience-company {
    color: #2d5a5e;
    font-size: 1.2em;
}

.experience-date {
    color: #4a7c7f;
    font-size: 0.95em;
}

.experience-item ul {
    list-style: none;
    margin-top: 15px;
}

.experience-item li {
    padding: 8px 0;
    color: #2d3748;
    position: relative;
    padding-left: 25px;
}

.experience-item li:before {
    content: "▹";
    position: absolute;
    left: 0;
    color: #2d5a5e;
    font-size: 1.2em;
}

.projects-link {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #2d5a5e;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.projects-link:hover {
    background: #142223;
    box-shadow: 0 4px 12px rgba(20, 34, 35, 0.3);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.skill-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    border: 1px solid #d4e8e0;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    box-shadow: 0 10px 30px rgba(20, 34, 35, 0.15);
}

.skill-card h3 {
    color: #142223;
    margin-bottom: 15px;
    font-size: 1.3em;
}

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

.skill-card li {
    padding: 8px 0;
    color: #2d3748;
    position: relative;
    padding-left: 20px;
}

.skill-card li:before {
    content: "▹";
    position: absolute;
    left: 0;
    color: #2d5a5e;
}

/* Education Section */
.education-card {
    max-width: 800px;
    margin: 0 auto;
}

.education-card h3 {
    color: #142223;
    font-size: 1.8em;
    margin-bottom: 10px;
}

.education-card .degree {
    color: #2d5a5e;
    font-size: 1.3em;
    margin-bottom: 15px;
}

.education-card .honors {
    color: #2d3748;
    margin-top: 15px;
}

/* Contact Section */
.contact-info {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-info a {
    color: #2d5a5e;
    text-decoration: none;
    display: block;
    margin: 15px 0;
    font-size: 1.2em;
}

.contact-info a:hover {
    color: #142223;
}

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
}

.project-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    border: 1px solid #d4e8e0;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: auto;
}

.project-card:hover {
    box-shadow: 0 10px 30px rgba(20, 34, 35, 0.15);
}

.project-card h3 {
    color: #142223;
    font-size: 1.6em;
    margin-bottom: 15px;
}

.project-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.project-tag {
    background: #d4e8e0;
    color: #142223;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
}

.project-description {
    color: #2d3748;
    margin-bottom: 20px;
    line-height: 1.8;
}

.project-highlights {
    list-style: none;
    margin-top: 15px;
}

.project-highlights li {
    padding: 8px 0;
    color: #2d3748;
    position: relative;
    padding-left: 25px;
}

.project-highlights li:before {
    content: "▹";
    position: absolute;
    left: 0;
    color: #2d5a5e;
    font-weight: bold;
    font-size: 1.2em;
}

.impact-box {
    background: #e8f4f0;
    border-left: 4px solid #2d5a5e;
    padding: 15px 20px;
    margin-top: 20px;
    border-radius: 5px;
}

.impact-box strong {
    color: #142223;
}

.tools-section {
    background: #f8fdfb;
    padding: 20px;
    border-radius: 10px;
    margin-top: 15px;
}

.tools-section h4 {
    color: #142223;
    margin-bottom: 10px;
}

.tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tool-badge {
    background: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.9em;
    border: 1px solid #d4e8e0;
    color: #2d5a5e;
}

.project-image {
    width: 350px;
    height: 250px;
    object-fit: contain;
    background: white;
    border-radius: 10px;
    border: 1px solid #d4e8e0;
    float: right;
    margin-left: 25px;
    margin-bottom: 15px;
    padding: 5px;
}

/* Tooltip styles */
.tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted #2d5a5e;
    cursor: help;
    color: #2d5a5e;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: #142223;
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 8px 12px;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.9em;
    line-height: 1.4;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #142223 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Image tooltip styles */
.image-tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted #2d5a5e;
    cursor: pointer;
    color: #142223;
}

.image-tooltip .tooltip-image {
    visibility: hidden;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    background: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(20, 34, 35, 0.3);
    border: 2px solid #2d5a5e;
}

.image-tooltip .tooltip-image img {
    max-width: 400px;
    max-height: 300px;
    display: block;
    border-radius: 4px;
}

.image-tooltip:hover .tooltip-image {
    visibility: visible;
    opacity: 1;
}

.image-tooltip .tooltip-image::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -8px;
    border-width: 8px;
    border-style: solid;
    border-color: #2d5a5e transparent transparent transparent;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    background: white;
    border-top: 2px solid #d4e8e0;
    color: #2d5a5e;
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.8em;
    }

    .aircraft-grid {
        grid-template-columns: 1fr;
    }

    .experience-header {
        flex-direction: column;
    }

    .project-image {
        max-width: 100%;
        width: 100%;
        height: 200px;
        float: none;
        margin-left: 0;
        margin-bottom: 15px;
    }

    /* Fix image tooltip for mobile */
    .image-tooltip .tooltip-image {
        left: 10px;
        right: 10px;
        transform: none;
        width: auto;
    }

    .image-tooltip .tooltip-image img {
        max-width: 100%;
        width: 100%;
        height: auto;
    }

    .image-tooltip .tooltip-image::after {
        left: 20px;
        margin-left: 0;
    }

}