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

:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --dark-bg: #000000;
    --light-bg: #f5f5f5;
    --text-dark: #000000;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 0.5rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: left 0.5s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

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

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

/* Hero Section */
.hero {
    margin-top: 70px;
    padding: 120px 20px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: white;
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 50px;
    min-height: 80vh;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.03) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    background: linear-gradient(90deg, #ffffff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInDown 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    font-weight: 500;
    animation: slideInUp 0.8s ease-out 0.2s both;
}

.hero-info {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    animation: slideInUp 0.8s ease-out 0.4s both;
}

.hero-info p {
    margin-bottom: 0.5rem;
}

.location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: slideInUp 0.8s ease-out 0.6s both;
}

.hero-animation {
    position: relative;
    height: 400px;
    animation: fadeIn 1.5s ease-out;
}

.floating-box {
    display: none;
}

.box-1 {
    display: none;
}

.box-2 {
    display: none;
}

.box-3 {
    display: none;
}

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* About Section */
.about {
    padding: 100px 20px;
    background: var(--light-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0,0,0,0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
    animation: fadeInDown 0.8s ease-out;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 1rem auto 0;
    border-radius: 2px;
    animation: expandWidth 0.8s ease-out 0.3s both;
}

@keyframes expandWidth {
    from {
        width: 0;
    }
    to {
        width: 80px;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.about-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.info-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.02);
    transition: left 0.4s ease;
    z-index: -1;
}

.info-item:hover::before {
    left: 100%;
}

.info-item:hover {
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.info-label {
    display: block;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    display: block;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1.1rem;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.8s ease-out 0.2s both;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border: 3px solid #000000;
    transition: var(--transition);
    position: relative;
}

.profile-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 50px rgba(0, 0, 0, 0.3);
}

.image-placeholder {
    display: none;
}

/* Skills Section */
.skills {
    padding: 100px 20px;
    background: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out both;
}

.skill-category:nth-child(1) { animation-delay: 0.1s; }
.skill-category:nth-child(2) { animation-delay: 0.2s; }
.skill-category:nth-child(3) { animation-delay: 0.3s; }
.skill-category:nth-child(4) { animation-delay: 0.4s; }

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.05), transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

.skill-category:hover::before {
    left: 100%;
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.category-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
}

.category-title i {
    font-size: 1.5rem;
    transition: var(--transition);
}

.skill-category:hover .category-title i {
    transform: rotate(10deg) scale(1.1);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-item {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-dark);
    border: 2px solid var(--primary-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
    z-index: -1;
}

.skill-item:hover::before {
    width: 100%;
    height: 100%;
}

.skill-item:hover {
    color: white;
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Projects Section */
.projects {
    padding: 100px 20px;
    background: var(--light-bg);
}

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

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.8s ease-out both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    animation: shimmerAnimation 3s infinite;
}

@keyframes shimmerAnimation {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-image::before {
    display: none;
}

.project-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.project-card:hover .project-title {
    color: var(--primary-color);
}

.project-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    flex-grow: 1;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition);
}

.project-card:hover .tech-tag {
    transform: scale(1.05);
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    position: relative;
}

.project-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.4s ease;
}

.project-link:hover::after {
    width: 100%;
}

.project-link:hover {
    gap: 0.75rem;
}

/* Contact Section */
.contact {
    padding: 100px 20px;
    background: white;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: fadeInLeft 0.8s ease-out;
}

.form-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hire-btn {
    flex: 1;
    justify-content: center;
    min-width: 140px;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
    position: relative;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05), inset 0 2px 8px rgba(0, 0, 0, 0.03);
    background: rgba(0, 0, 0, 0.01);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeInRight 0.8s ease-out;
}

.contact-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-radius: 12px;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.contact-item:hover {
    background: var(--light-bg);
    border-left-color: var(--primary-color);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
    transition: var(--transition);
}

.contact-item:hover i {
    transform: scale(1.2) rotate(10deg);
}

.contact-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

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

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
}

.contact-item a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.contact-item a:hover::after {
    width: 100%;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.social-link:hover::before {
    width: 100%;
    height: 100%;
}

.social-link:hover {
    transform: translateY(-8px) scale(1.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: white;
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    margin: 0.5rem 0;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    animation: fadeInUp 0.8s ease-out both;
}

.footer p:nth-child(1) {
    animation-delay: 0.1s;
}

.footer p:nth-child(2) {
    animation-delay: 0.2s;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.1);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

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

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

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

    .hero {
        grid-template-columns: 1fr;
        padding: 80px 20px;
        margin-top: 50px;
        min-height: auto;
    }

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

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

    .hero-animation {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-info {
        grid-template-columns: 1fr;
    }

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

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

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

    .hero-buttons {
        flex-direction: column;
    }

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

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

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

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

    .section-title::after {
        width: 60px;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

    .social-links {
        gap: 1rem;
    }

    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}