:root {
    --teal: #14b8a6;
    --teal-dark: #0f766e;
    --blue: #2563eb;
    --blue-light: #38bdf8;
    --metal: #64748b;
    --metal-light: #94a3b8;
    --white: #ffffff;
}

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

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: linear-gradient(145deg, #f0f9ff 0%, #e6f0fa 100%);
    color: #1e293b;
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 1rem;
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(8px);
    border-radius: 2rem;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3rem;
    background: linear-gradient(135deg, #0d9488 0%, #2563eb 50%, #38bdf8 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #334155;
    margin-top: 0.5rem;
    font-weight: 500;
}

.about {
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.1s backwards;
}

.about-card {
    background: white;
    border-radius: 2rem;
    padding: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    box-shadow: 0 20px 35px -10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    border: 1px solid rgba(20,184,166,0.2);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 40px -12px rgba(0,0,0,0.15);
    border-color: var(--teal);
}

.about-avatar {
    flex-shrink: 0;
}

.avatar-image {
    width: 230px;
    height: 230px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 15px 20px -8px rgba(0,0,0,0.2);
    transition: transform 0.3s;
}

.about-info {
    flex: 1;
}

.about-info h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: #0f172a;
    position: relative;
    display: inline-block;
}

.about-info h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #14b8a6, #38bdf8);
    border-radius: 3px;
}

.about-info p {
    color: #334155;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-bottom: 1.5rem;
}

.skill-tag {
    background: #eef2ff;
    padding: 0.3rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #1e40af;
    transition: all 0.2s;
    border: 1px solid #bfdbfe;
    cursor: default;
}

.skill-tag:hover {
    background: var(--teal);
    color: white;
    border-color: var(--teal);
    transform: translateY(-2px);
}

.contacts {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
}

.contact-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s, transform 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.contact-link:hover {
    color: #0d9488;
    transform: translateX(3px);
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #0f172a;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, #14b8a6, #2563eb);
    border-radius: 4px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.loading {
    text-align: center;
    padding: 3rem;
    background: rgba(255,255,255,0.7);
    border-radius: 2rem;
    color: #475569;
    font-size: 1.2rem;
    backdrop-filter: blur(4px);
}

.footer {
    margin-top: 4rem;
    text-align: center;
    padding: 2rem 0 1rem;
    border-top: 1px solid rgba(20,184,166,0.3);
    color: #475569;
    font-size: 0.9rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.education {
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.15s backwards;
}

.education-card {
    background: white;
    border-radius: 1.5rem;
    padding: 1.8rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    box-shadow: 0 15px 25px -10px rgba(0,0,0,0.05);
    border: 1px solid rgba(20,184,166,0.2);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 40px -12px rgba(0,0,0,0.15);
    border-color: var(--teal);
}

.education-item h3 {
    font-size: 1.3rem;
    color: #0f172a;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.education-item p {
    color: #334155;
    margin-bottom: 0.3rem;
    font-size: 0.95rem;
}

.skills-section {
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.8rem;
}

.skills-category {
    background: white;
    border-radius: 1.2rem;
    padding: 1.2rem;
    border: 1px solid rgba(20,184,166,0.2);
    transition: transform 0.2s, box-shadow 0.2s;
}

.skills-category:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px -8px rgba(0,0,0,0.1);
    border-color: var(--teal);
}

.skills-category h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #0f172a;
    border-left: 3px solid var(--teal);
    padding-left: 0.6rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.achievements {
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.25s backwards;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.achievement-card {
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    border: 1px solid rgba(20,184,166,0.2);
    box-shadow: 0 15px 25px -10px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 40px -12px rgba(0,0,0,0.15);
    border-color: var(--teal);
}

.achievement-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s;
    background: #f1f5f9;
}

.achievement-image.portrait {
    aspect-ratio: 3 / 4;
}

.achievement-card:hover .achievement-image {
    transform: scale(1.02);
}

.achievement-content {
    padding: 1.2rem;
}

.achievement-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #0f172a;
}

.achievement-description {
    font-size: 0.95rem;
    color: #475569;
    line-height: 1.4;
    text-align: justify;
}

.loading-achievements {
    text-align: center;
    padding: 2rem;
    background: rgba(255,255,255,0.7);
    border-radius: 1.5rem;
    color: #475569;
    font-size: 1rem;
    backdrop-filter: blur(4px);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.9);
    backdrop-filter: blur(5px);
    cursor: pointer;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px black;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--teal);
}

@media (max-width: 1200px) {
    .container {
        padding: 1.8rem;
    }

    .hero {
        padding: 1.5rem;
        margin-bottom: 2.5rem;
    }

    .hero-title {
        font-size: 2.7rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .about-card {
        padding: 1.8rem;
        gap: 1.8rem;
    }

    .avatar-image {
        width: 200px;
        height: 200px;
    }

    .about-info h2 {
        font-size: 1.8rem;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.8rem;
    }

    .skills-grid {
        gap: 1.5rem;
    }

    .education-card {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .achievements-grid {
        gap: 1.8rem;
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .achievement-content {
        padding: 1rem;
    }

    .achievement-title {
        font-size: 1.1rem;
    }

    .achievement-description {
        font-size: 0.9rem;
    }
}

@media (max-width: 992px) {
    .container {
        padding: 1.5rem;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .about-card {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .avatar-image {
        width: 180px;
        height: 180px;
    }
    
    .about-info h2 {
        font-size: 1.7rem;
    }

    .about-info p {
        font-size: 0.95rem;
    }

    .skill-tag {
        font-size: 0.8rem;
        padding: 0.25rem 0.9rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 1.3rem;
    }

    .skills-category {
        padding: 1rem;
    }

    .skills-category h3 {
        font-size: 1.1rem;
    }

    .education-card {
        grid-template-columns: 1fr;
        gap: 1.3rem;
        padding: 1.3rem;
    }

    .education-item h3 {
        font-size: 1.2rem;
    }

    .footer {
        margin-top: 3rem;
        padding: 1.5rem 0 0.8rem;
        font-size: 0.85rem;
    }

    .achievements-grid {
        gap: 1.5rem;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

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

    .achievement-description {
        font-size: 0.85rem;
    }

    .loading-achievements {
        padding: 1.5rem;
        font-size: 0.9rem;
    }

    .modal-close {
        font-size: 35px;
        top: 15px;
        right: 25px;
    }
}

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

    .hero {
        padding: 1.2rem;
        margin-bottom: 2rem;
        border-radius: 1.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .about-card {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
        border-radius: 1.5rem;
    }

    .avatar-image {
        width: 160px;
        height: 160px;
    }

    .about-info h2 {
        font-size: 1.5rem;
    }

    .about-info h2::after {
        left: 50%;
        transform: translateX(-50%);
        width: 50px;
    }

    .about-info p {
        font-size: 0.9rem;
    }

    .skills {
        justify-content: center;
    }

    .contacts {
        justify-content: center;
    }

    .section-title {
        font-size: 1.6rem;
        text-align: center;
        width: 100%;
    }

    .section-title::after {
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
        height: 3px;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        gap: 1.2rem;
    }

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

    .skills-category {
        padding: 0.9rem;
    }

    .skills-category h3 {
        font-size: 1rem;
    }

    .education-card {
        padding: 1.2rem;
        border-radius: 1.2rem;
    }

    .education-item h3 {
        font-size: 1.1rem;
    }

    .education-item p {
        font-size: 0.85rem;
    }

    .footer {
        margin-top: 2.5rem;
        padding: 1.2rem 0 0.6rem;
        font-size: 0.8rem;
    }

    .loading {
        padding: 2rem;
        font-size: 1rem;
    }

    .achievements {
        margin-bottom: 2rem;
    }

    .achievements-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1.2rem;
    }

    .achievement-content {
        padding: 0.9rem;
    }

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

    .achievement-description {
        font-size: 0.85rem;
    }

    .loading-achievements {
        padding: 1.2rem;
        font-size: 0.9rem;
    }

    .modal-content {
        max-width: 95%;
        max-height: 85%;
        border-radius: 0.8rem;
    }

    .modal-close {
        font-size: 30px;
        top: 12px;
        right: 20px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0.8rem;
    }

    .hero {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }

    .about-card {
        padding: 1rem;
        gap: 1rem;
    }

    .avatar-image {
        width: 130px;
        height: 130px;
    }

    .about-info h2 {
        font-size: 1.3rem;
    }

    .about-info p {
        font-size: 0.85rem;
        margin-bottom: 1rem;
    }

    .skill-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.7rem;
    }

    .contacts {
        gap: 0.8rem;
    }

    .contact-link {
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 1.4rem;
        margin-bottom: 1.5rem;
    }

    .section-title::after {
        width: 50px;
        height: 3px;
        bottom: -8px;
    }

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

    .skills-category {
        padding: 0.8rem;
    }

    .skills-category h3 {
        font-size: 0.95rem;
        margin-bottom: 0.8rem;
    }

    .skills-list {
        gap: 0.5rem;
    }

    .skill-tag {
        font-size: 0.65rem;
        padding: 0.15rem 0.6rem;
    }

    .education-card {
        padding: 1rem;
    }

    .education-item h3 {
        font-size: 1rem;
        gap: 0.3rem;
    }

    .education-item p {
        font-size: 0.8rem;
    }

    .footer {
        margin-top: 2rem;
        font-size: 0.75rem;
    }

    .loading {
        padding: 1.5rem;
        font-size: 0.9rem;
    }

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

    .achievement-card {
        max-width: 100%;
    }

    .achievement-content {
        padding: 0.8rem;
    }

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

    .achievement-description {
        font-size: 0.8rem;
    }

    .loading-achievements {
        padding: 1rem;
        font-size: 0.85rem;
    }

    .modal-close {
        font-size: 28px;
        top: 10px;
        right: 15px;
    }

    .modal-content {
        max-width: 98%;
        max-height: 80%;
        border-radius: 0.6rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.6rem;
    }
    
    .hero {
        padding: 0.8rem;
        border-radius: 1.2rem;
    }

    .hero-title {
        font-size: 1.4rem;
    }

    .hero-subtitle {
        font-size: 0.8rem;
    }

    .about-card {
        padding: 0.8rem;
        border-radius: 1.2rem;
    }

    .avatar-image {
        width: 110px;
        height: 110px;
    }

    .about-info h2 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }

    .about-info p {
        font-size: 0.8rem;
    }

    .skill-tag {
        font-size: 0.6rem;
        padding: 0.1rem 0.5rem;
    }

    .contact-link {
        font-size: 0.75rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .skills-category {
        padding: 0.7rem;
    }

    .skills-category h3 {
        font-size: 0.85rem;
    }

    .education-card {
        padding: 0.8rem;
    }

    .education-item h3 {
        font-size: 0.9rem;
    }

    .education-item p {
        font-size: 0.75rem;
    }

    .footer {
        font-size: 0.7rem;
        padding: 1rem 0 0.5rem;
    }

    .achievement-title {
        font-size: 0.9rem;
    }

    .achievement-description {
        font-size: 0.75rem;
    }

    .achievement-content {
        padding: 0.7rem;
    }

    .modal-close {
        font-size: 24px;
        top: 8px;
        right: 12px;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 0.4rem;
    }

    .hero {
        padding: 0.6rem;
        margin-bottom: 1rem;
    }

    .hero-title {
        font-size: 1.2rem;
    }

    .hero-subtitle {
        font-size: 0.7rem;
    }

    .about-card {
        padding: 0.6rem;
    }

    .avatar-image {
        width: 90px;
        height: 90px;
    }

    .about-info h2 {
        font-size: 1rem;
    }

    .about-info p {
        font-size: 0.7rem;
    }

    .skill-tag {
        font-size: 0.55rem;
        padding: 0.05rem 0.4rem;
    }

    .contact-link {
        font-size: 0.7rem;
    }

    .section-title {
        font-size: 1rem;
        margin-bottom: 1.2rem;
    }

    .section-title::after {
        width: 40px;
        height: 2px;
        bottom: -6px;
    }

    .projects-grid {
        gap: 0.8rem;
    }

    .skills-category {
        padding: 0.5rem;
    }

    .skills-category h3 {
        font-size: 0.8rem;
    }

    .education-card {
        padding: 0.6rem;
    }

    .education-item h3 {
        font-size: 0.85rem;
    }

    .education-item p {
        font-size: 0.7rem;
    }

    .footer {
        margin-top: 1.5rem;
        font-size: 0.65rem;
    }

    .loading {
        padding: 1rem;
        font-size: 0.8rem;
    }

    .achievement-title {
        font-size: 0.85rem;
    }

    .achievement-description {
        font-size: 0.7rem;
    }

    .achievement-content {
        padding: 0.5rem;
    }

    .loading-achievements {
        padding: 0.8rem;
        font-size: 0.75rem;
    }

    .modal-close {
        font-size: 22px;
        top: 6px;
        right: 10px;
    }

    .modal-content {
        max-height: 75%;
    }
}