/* Professional Color Palette */
:root {
    --primary: #A60D27; /* Deep Navy Blue */
    --secondary: #254445; /* Bright Sky Blue */
    --background: #f6f6f6; /* Soft Blue-Tinted White */
    --white: #ffffff;
    --text: #000000; /* Slate Blue-Gray */
    --accent: #E1C341; /* Light Accent Blue */
    --light-gray: #e2e8f0; /* Pale Grayish Blue */
    --dark-gray: #334155; /* Muted Dark Blue-Gray */
    --success: #10b981; /* Teal Green (for status contrast) */

    /* Shadows */
    --shadow-light: 0 2px 10px rgba(59, 130, 246, 0.08);
    --shadow-medium: 0 4px 20px rgba(59, 130, 246, 0.15);
    --shadow-heavy: 0 8px 30px rgba(59, 130, 246, 0.25);

    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 20px;

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}



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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-medium);
    z-index: 1000;
    transition: var(--transition);

}

.navbar.scrolled {
    box-shadow: var(--shadow-heavy);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    margin-inline: 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    min-width: fit-content;
}

.logo:hover {
    color: var(--accent);
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    background: rgba(43, 103, 119, 0.1);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(252, 163, 17, 0.1) 50%, transparent 70%);
    animation: shimmer 8s ease-in-out infinite;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    z-index: 2;
    position: relative;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    opacity: 0;
    animation: slideInUp 1s ease-out 0.3s forwards;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    margin-bottom: 1.5rem;
    color: var(--accent);
    font-weight: 500;
    opacity: 0;
    animation: slideInUp 1s ease-out 0.5s forwards;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.7;
    opacity: 0;
    animation: slideInUp 1s ease-out 0.7s forwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: slideInUp 1s ease-out 0.9s forwards;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    background: #e0920f;
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-avatar {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 4px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: float 6s ease-in-out infinite, fadeInScale 1s ease-out 1s forwards;
    overflow: hidden;
    box-shadow: var(--shadow-heavy);   
}


.avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.hero-avatar::before {
    content: '';
    position: absolute;
    inset: -20px;
    background: conic-gradient(from 0deg, transparent, rgba(252, 163, 17, 0.4), transparent);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
    z-index: -1;
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section:nth-child(even) {
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* About Section */
.about-content {
    display: grid;
    gap: 3rem;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text);
    text-align: center;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 2px solid transparent;
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text);
    font-weight: 500;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--secondary);
}

.skill-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

.skill-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.skill-list {
    list-style: none;
    text-align: left;
}

.skill-list li {
    color: var(--text);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.skill-list li::before {
    content: '▸';
    color: var(--accent);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Experience Section */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.experience-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-light);
    border: 2px solid transparent;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary);
}

.experience-card:hover::before {
    transform: scaleX(1);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.experience-date {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
    background: rgba(43, 103, 119, 0.1);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-md);
}

.experience-status {
    font-size: 0.8rem;
    color: var(--white);
    background: var(--success);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.experience-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.experience-company {
    color: var(--text);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.experience-description {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--secondary);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary);
    transform: scale(1.05);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 2px solid transparent;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--accent);
}

.project-image {
    height: 250px;
    position: relative;
    overflow: hidden;
}

.project-image img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    opacity: 1 !important;
}

.project-icon {
    font-size: 3rem;
    color: var(--white);
}

.project-content {
    padding: 2rem;
}

.project-date {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
    background: rgba(252, 163, 17, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-md);
    display: inline-block;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.project-description {
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tech-tag {
    background: var(--primary);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
}

.btn-read-more {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    width: 100%;
}

.btn-read-more:hover {
    background: var(--accent);
    color: var(--white);
    transform: translateY(-2px);
}

/* Contact Section */
.contact-info {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    max-width: 340px;
    min-width: 280px;
    width: 100%;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
    font-size: 1.2rem;
}

.contact-details h4 {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-details p {
    color: var(--text);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary), var(--text));
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 2rem;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
    text-decoration: none;
    font-size: 1.2rem;
}

.social-link:hover {
    background: var(--accent);
    transform: translateY(-3px) scale(1.1);
}

.footer-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-heavy);
}

/* Modal */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.project-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 800px;
    max-height: 80vh;
    width: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    transform: scale(0.9);
    transition: var(--transition);
}

.project-modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--light-gray);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text);
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background: var(--primary);
    color: var(--white);
}

.modal-body {
    padding: 3rem;
    overflow-y: auto;
    max-height: 80vh;
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.modal-subtitle {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 2rem;
}

.modal-description {
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.modal-features {
    margin-bottom: 2rem;
}

.modal-features h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.modal-features ul {
    list-style: none;
    margin-left: 1rem;
}

.modal-features li {
    color: var(--text);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1rem;
}

.modal-features li::before {
    content: '→';
    color: var(--accent);
    margin-right: 0.5rem;
    position: absolute;
    left: 0;
}

.modal-code {
    background: var(--text);
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 2rem;
}

/* Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-20px); 
    }
}

@keyframes rotate {
    from { 
        transform: rotate(0deg); 
    }
    to { 
        transform: rotate(360deg); 
    }
}

@keyframes shimmer {
    0%, 100% { 
        transform: translateX(-100%); 
    }
    50% { 
        transform: translateX(100%); 
    }
}

.fade-in-up {
    opacity: 0;
    animation: slideInUp 0.8s ease-out forwards;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .experience-grid,
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-heavy);
        transform: translateY(-100%);
        opacity: 0;
        gap: 2rem;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        padding: 1rem;
        text-align: center;
        border-radius: var(--radius-md);
        width: 100%;
    }

    .mobile-menu {
        display: flex;
    }

    .section {
        padding: 4rem 0;
    }

    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .experience-grid,
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .social-links {
        justify-content: center;
    }

    .experience-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .modal-body {
        padding: 2rem;
    }

    .hero-avatar {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 480px) {
    .hero-avatar {
        width: 220px;
        height: 220px;
    }

    .stat {
        padding: 1.5rem 1rem;
    }

    .skill-category,
    .experience-card,
    .project-content,
    .contact-form {
        padding: 1.5rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .scroll-top {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}

.education {
  background-color: var(--background);
}

.education-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Same structure and animation as experience-card */
.education-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-light);
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.education-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.education-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary);
}

.education-card:hover::before {
  transform: scaleX(1);
}

.education-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.education-date {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  background: rgba(43, 103, 119, 0.1);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-md);
}

.education-status {
  font-size: 0.8rem;
  color: var(--white);
  background: var(--success);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.education-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.education-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.education-institution {
  color: var(--text);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.education-description {
  color: var(--dark-gray);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.education-details {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--dark-gray);
}

.education-details li {
  margin-bottom: 6px;
}

.publications {
  background-color: var(--background);
  padding: 4rem 1.5rem;
}

.publications-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 2rem;
}
.author-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: var(--radius);
}

.publication-citations {
    margin-top: 0.5rem;
    font-size: 0.9em;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
/* ---------- Cards ---------- */
.publication-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-light);
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.publication-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.publication-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary);
}

.publication-card:hover::before {
  transform: scaleX(1);
}

/* ---------- Card Content ---------- */
.publication-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.publication-journal {
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 600;
  background: rgba(43, 103, 119, 0.1);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-md);
}

.publication-impact {
  font-size: 0.85rem;
  color: var(--white);
  background: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.publication-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.8rem;
  line-height: 1.5;
}

.publication-doi {
  font-size: 0.95rem;
  color: var(--dark-gray);
}

.publication-doi a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.publication-doi a:hover {
  color: var(--secondary);
  text-decoration: underline;
}

/* ---------- Responsive Breakpoints ---------- */

/* Medium screens (tablets ≤ 992px) */
@media (max-width: 992px) {
  .publications-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .publication-card {
    padding: 2rem;
  }

  .publication-title {
    font-size: 1rem;
  }
}

/* Small screens (phones ≤ 600px) */
@media (max-width: 600px) {
  .publications {
    padding: 3rem 1rem;
  }

  .publication-card {
    padding: 1.5rem;
  }

  .publication-journal,
  .publication-impact {
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
  }

  .publication-title {
    font-size: 0.95rem;
  }

  .publication-doi {
    font-size: 0.85rem;
  }
}


.courses {
  background-color: var(--background);
  padding: 4rem 2rem;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 2rem;
}

/* Course Card */
.course-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-light);
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.course-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary);
}

.course-card:hover::before {
  transform: scaleX(1);
}

/* Header section */
.course-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.course-provider {
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 600;
  background: rgba(43, 103, 119, 0.1);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-md);
}

.course-year {
  font-size: 0.85rem;
  color: var(--white);
  background: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.course-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.course-details {
  list-style: disc;
  margin: 0;
  padding-left: 1.5rem;
  color: var(--dark-gray);
}

.course-details li {
  margin-bottom: 6px;
  line-height: 1.6;
}

/* 🌐 RESPONSIVENESS */

/* Medium devices (≤992px) */
@media (max-width: 992px) {
  .courses-grid {
    grid-template-columns: repeat(2, minmax(250px, 1fr));
    gap: 1.5rem;
  }

  .course-card {
    padding: 2rem;
  }

  .course-title {
    font-size: 1rem;
  }
}

/* Small devices (≤768px) */
@media (max-width: 768px) {
  .courses {
    padding: 3rem 1.5rem;
  }

  .courses-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .course-card {
    padding: 1.8rem;
  }

  .course-provider,
  .course-year {
    font-size: 0.85rem;
  }
}

/* Extra small devices (≤480px) */
@media (max-width: 480px) {
  .courses {
    padding: 2rem 1rem;
  }

  .course-card {
    padding: 1.5rem;
  }

  .course-title {
    font-size: 0.95rem;
  }

  .course-details li {
    font-size: 0.85rem;
  }
}


.achievements {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

@media (min-width: 1200px) {
  .achievements-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .achievements-grid {
    grid-template-columns: 1fr;
  }
}

.achievement-card {
  background: var(--white);
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-light);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.achievement-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.achievement-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-heavy);
}

.achievement-card:hover::before {
  transform: scaleX(1);
}

.achievement-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1rem;
}

.achievement-role {
  color: var(--text);
  font-weight: 500;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.achievement-list {
  list-style: disc;
  margin-left: 1.5rem;
  color: var(--dark-gray);
  line-height: 1.6;
}