:root {
    --bg-color: #050810;
    --surface-color: rgba(18, 22, 36, 0.7);
    --surface-border: rgba(255, 255, 255, 0.08);
    --primary-color: #00f0ff;
    --primary-glow: rgba(0, 240, 255, 0.4);
    --secondary-color: #7000ff;
    --text-main: #f0f2f5;
    --text-muted: #94a3b8;
    --font-family: 'Outfit', sans-serif;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 15% 50%, rgba(112, 0, 255, 0.08), transparent 25%),
                radial-gradient(circle at 85% 30%, rgba(0, 240, 255, 0.08), transparent 25%);
    filter: blur(60px);
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.2); opacity: 1; }
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
}

header.scrolled {
    padding: 1rem 0;
    background: rgba(5, 8, 16, 0.8);
    border-bottom: 1px solid var(--surface-border);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-glow);
}

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

nav a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

nav a:hover::after {
    width: 100%;
}

/* Typography & General */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
    font-weight: 800;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-text {
    flex: 1;
}

.subtitle {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.title {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1rem;
}

.title span {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.role {
    font-size: 1.8rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 30px var(--primary-glow);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 2px solid var(--surface-border);
    margin-left: 1rem;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.glow-orb {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    filter: blur(80px);
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.abstract-shape {
    position: absolute;
    width: 250px;
    height: 250px;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: 30px;
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: center;
    transform: rotate(15deg);
    transition: var(--transition);
    animation: float 6s ease-in-out infinite alternate;
}

.abstract-shape:hover {
    transform: rotate(0deg) scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 0 40px var(--primary-glow);
}

.icon-large {
    font-size: 5rem;
    color: var(--primary-color);
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

@keyframes float {
    0% { transform: translateY(0) rotate(15deg); }
    100% { transform: translateY(-20px) rotate(20deg); }
}

/* Expertise Section */
.expertise {
    padding: 100px 0;
}

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

.skill-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-glow);
}

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

.skill-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: rgba(0, 240, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.skill-card:hover .skill-icon {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--primary-glow);
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

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

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

.skill-tags span {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
    border: 1px solid var(--surface-border);
}

/* Contact Section */
.contact {
    padding: 80px 0 120px;
}

.contact-box {
    background: linear-gradient(135deg, var(--surface-color), rgba(112, 0, 255, 0.1));
    border: 1px solid var(--primary-color);
    border-radius: 30px;
    padding: 4rem;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.1);
}

.contact-box h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-box p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-inline: auto;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--surface-border);
    border-radius: 50px;
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-item:hover {
    background: var(--surface-color);
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--surface-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible, .fade-in-right.visible {
    opacity: 1;
    transform: translate(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.3s; }
.stagger-3 { transition-delay: 0.5s; }

/* Responsive */
@media (max-width: 992px) {
    .title { font-size: 3rem; }
    .hero-content { flex-direction: column; text-align: center; }
    .description { margin-inline: auto; }
    .cta-group { display: flex; justify-content: center; gap: 1rem; }
    .btn-outline { margin-left: 0; }
    .hero-text { padding-top: 2rem; }
}

@media (max-width: 768px) {
    .title { font-size: 2.5rem; }
    .role { font-size: 1.4rem; }
    nav ul { display: none; }
    .contact-box { padding: 2rem; }
    .contact-links { flex-direction: column; gap: 1rem; }
}