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

:root {
    --primary-color: #00ff88;
    --dark-bg: #0a0e1a;
    --card-bg: #151b2e;
    --text-primary: #ffffff;
    --text-secondary: #b0b8c8;
    --accent: #00d4ff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(-45deg, #0a0e1a, #1a1f35, #0f1829, #1e2a47);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -250px;
    right: -250px;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -200px;
    left: -200px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

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

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

.hero h1 {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent), var(--primary-color));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shine 3s linear infinite;
    text-shadow: 0 0 40px rgba(0, 255, 136, 0.3);
}

@keyframes shine {
    to { background-position: 200% center; }
}

.hero h2 {
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out 0.2s both;
    letter-spacing: 1px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent));
    color: var(--dark-bg);
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease-out 0.6s both;
    box-shadow: 0 5px 25px rgba(0, 255, 136, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

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

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 255, 136, 0.4);
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 3.5rem;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent));
    border-radius: 2px;
}

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

.about-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

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

.skill-card {
    background: linear-gradient(145deg, var(--card-bg), #1a2035);
    padding: 2.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 136, 0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2), 0 0 20px rgba(0, 212, 255, 0.1);
}

.skill-card i {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: all 0.4s;
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.5));
}

.skill-card:hover i {
    transform: scale(1.2) rotate(5deg);
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.8));
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.skill-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-card li:last-child {
    border-bottom: none;
}

/* Contact Section */
.contact {
    background-color: var(--card-bg);
}

.contact-content {
    text-align: center;
}

.contact-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-info {
    margin-bottom: 2rem;
}

.email-link {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    font-size: 1.4rem;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s;
    padding: 15px 30px;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    background: rgba(0, 255, 136, 0.05);
}

.email-link:hover {
    color: var(--dark-bg);
    background: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.email-link i {
    font-size: 1.6rem;
    transition: transform 0.3s;
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--dark-bg);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: all 0.3s;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background-color: var(--dark-bg);
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(0, 255, 136, 0.1);
}

.footer p {
    color: var(--text-secondary);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-links.active {
        right: 0;
    }

    .burger {
        display: flex;
    }

    .burger.toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .burger.toggle .line2 {
        opacity: 0;
    }

    .burger.toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

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

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

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

@media screen and (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero h2 {
        font-size: 1.2rem;
    }
}