:root {
    --primary-color: #4a36e0;
    --primary-light: #6c5ae8;
    --secondary-color: #ff6b8b;
    --dark-color: #1a1a2e;
    --dark-light: #2d2d44;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-dark: 0 15px 35px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    transition: var(--transition);
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 24px;
    color: var(--dark-color);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

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

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

.mobile-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--dark-light) 100%);
    color: white;
    padding: 180px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000" preserveAspectRatio="none"><path d="M0,0 L1000,0 L1000,700 Q500,800 0,700 Z" fill="%234a36e0" opacity="0.05"/></svg>');
    background-size: cover;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

.hero-image {
    flex: 1;
    text-align: center;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.profile-img {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-dark);
    transition: var(--transition);
}

.profile-img:hover {
    transform: scale(1.05);
    border-color: rgba(74, 54, 224, 0.3);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
    background: linear-gradient(90deg, #fff 0%, #a5a8ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 25px;
    color: #d1d1ff;
}

.hero p {
    font-size: 1.1rem;
    color: #b8b8e6;
    margin-bottom: 30px;
    max-width: 500px;
}

.tagline {
    display: inline-block;
    background: rgba(74, 54, 224, 0.2);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    color: #b8b8e6;
    margin-bottom: 30px;
    border: 1px solid rgba(74, 54, 224, 0.3);
}

/* About Section */
.about {
    background-color: var(--light-color);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-title p {
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.about-text p {
    color: var(--gray-color);
    margin-bottom: 20px;
}

.about-details {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 30px;
}

.detail-item {
    flex: 1;
    min-width: 200px;
}

.detail-item h4 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.about-image {
    flex: 1;
    text-align: center;
}

.about-img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.about-img:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-dark);
}

/* Services Section */
.services {
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 2;
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-dark);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray-color);
}

/* Portfolio Section */
.portfolio {
    background-color: var(--light-color);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.filter-btn {
    background: white;
    border: none;
    padding: 10px 25px;
    border-radius: 30px;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: var(--dark-color);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-dark);
}

.portfolio-img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.05);
}

.portfolio-info {
    padding: 25px;
}

.portfolio-info h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.portfolio-info p {
    color: var(--gray-color);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.portfolio-tag {
    display: inline-block;
    padding: 5px 15px;
    background-color: rgba(74, 54, 224, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Skills Section */
.skills {
    background-color: white;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.skill-item {
    margin-bottom: 30px;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.skill-name {
    font-weight: 600;
    color: var(--dark-color);
}

.skill-percent {
    color: var(--primary-color);
    font-weight: 600;
}

.skill-bar {
    height: 10px;
    background-color: var(--light-gray);
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 5px;
    width: 0;
    transition: width 1.5s ease-out;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--dark-light) 100%);
    color: white;
}

.contact .section-title h2 {
    color: white;
}

.contact .section-title p {
    color: #b8b8e6;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #d1d1ff;
}

.form-control {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.12);
}

.submit-btn {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    padding: 16px 40px;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(74, 54, 224, 0.3);
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 70px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 28px;
    color: white;
}

.footer-logo span {
    color: var(--primary-light);
}

.footer-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.footer-links a {
    color: #b8b8e6;
    text-decoration: none;
    transition: var(--transition);
}

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

.social-icons {
    display: flex;
    gap: 20px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: var(--transition);
    text-decoration: none;
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #b8b8e6;
    font-size: 0.9rem;
}

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

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

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        margin-bottom: 60px;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text, .about-image {
        width: 100%;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hero h1 {
        font-size: 2.3rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 80px 0;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 150px 0 90px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .profile-img {
        width: 250px;
        height: 250px;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}