/* Global Styles */
:root {
    --primary-color: #1a365d;
    --primary-light: #2c5282;
    --accent-color: #2b6cb0;
    --text-color: #1a202c;
    --text-light: #4a5568;
    --text-lighter: #718096;
    --bg-color: #ffffff;
    --bg-gray: #f7fafc;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    font-size: 15px;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    background-color: #0f172a;
    color: white;
    padding: 70px 24px 50px;
    text-align: center;
    border-bottom: 3px solid #1e293b;
}

header h1 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.025em;
    color: #ffffff;
}

.tagline {
    font-size: 0.95rem;
    font-weight: 400;
    margin-bottom: 28px;
    letter-spacing: 0.02em;
    color: #cbd5e1;
}

.social-links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.social-links a {
    color: #ffffff;
    text-decoration: none;
    padding: 9px 26px;
    border: 1px solid #475569;
    border-radius: 3px;
    font-weight: 500;
    font-size: 0.87rem;
    letter-spacing: 0.01em;
    transition: all 0.2s ease;
    background-color: transparent;
}

.social-links a:hover {
    background-color: #ffffff;
    color: #0f172a;
    border-color: #ffffff;
}

/* Main Content */
main {
    padding: 55px 24px 60px;
    max-width: 1000px;
    margin: 0 auto;
}

section {
    margin-bottom: 55px;
}

h2 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 1px solid #e2e8f0;
    letter-spacing: -0.02em;
}

h3 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 6px;
}

p {
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-color);
    line-height: 1.65;
}

/* About Section */
#about {
    max-width: 720px;
    margin: 30px auto 50px;
    text-align: center;
    padding: 32px 40px;
    background-color: #fffbeb;
    border-radius: 8px;
    border: 1px solid #fde68a;
}

#about p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #1e293b;
    margin-bottom: 18px;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
    margin-top: 20px;
}

.skill-category {
    background-color: var(--bg-gray);
    padding: 18px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.skill-category:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

.skill-category h3 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 12px;
}

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

.skill-category li {
    padding: 5px 0;
    color: var(--text-color);
    font-size: 0.88rem;
    position: relative;
    padding-left: 16px;
}

.skill-category li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

/* Experience Section */
.job {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--bg-gray);
    border-radius: 6px;
    border-left: 3px solid var(--accent-color);
    transition: all 0.2s ease;
}

.job:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(3px);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 4px;
}

.job h3 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 0;
}

.duration {
    color: var(--text-lighter);
    font-weight: 500;
    font-size: 0.85rem;
}

.company {
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.job ul {
    margin-top: 12px;
    padding-left: 18px;
}

.job li {
    margin-bottom: 7px;
    color: var(--text-color);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* Projects Section */
.project {
    margin-bottom: 22px;
    padding: 18px;
    background-color: var(--bg-gray);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.project:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.project h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.tech-stack {
    color: var(--text-lighter);
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* Education Section */
.education-focus {
    font-style: italic;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.thesis {
    color: var(--text-lighter);
    font-size: 0.88rem;
    line-height: 1.65;
    margin-top: 10px;
}

/* Contact Section */
#contact {
    text-align: center;
    padding: 30px 0;
}

.contact-links {
    display: flex;
    gap: 14px;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
}

.btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    text-align: center;
    padding: 28px 24px;
    margin-top: 40px;
    border-top: 3px solid var(--accent-color);
}

footer p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.88rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        padding: 40px 20px 32px;
    }

    header h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 0.95rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.05rem;
    }

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

    .job-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 32px 16px 28px;
    }

    header h1 {
        font-size: 1.75rem;
    }

    main {
        padding: 32px 16px;
    }

    section {
        margin-bottom: 32px;
    }

    .job {
        padding: 16px;
    }

    .skill-category {
        padding: 16px;
    }
}