:root {
    --bg-color: #050505;
    --text-color: #e0e0e0;
    --neon-blue: #00f3ff;
    --neon-purple: #bc13fe;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

h1, h2, h3, .logo {
    font-family: 'Orbitron', sans-serif;
}

/* Background canvas for particles */
#bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at center, #0a0a14 0%, #000 100%);
}

.neon-text {
    color: var(--neon-blue);
    text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(5, 5, 5, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s, text-shadow 0.3s;
    position: relative;
}

.nav-links a:not(.btn-primary):hover {
    color: var(--neon-blue);
    text-shadow: 0 0 8px var(--neon-blue);
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--neon-blue);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--neon-blue);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

.btn-primary {
    background: transparent;
    color: var(--neon-blue);
    border: 1px solid var(--neon-blue);
    padding: 0.6rem 1.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    font-size: 0.8rem;
    font-family: 'Orbitron', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: inset 0 0 0 var(--neon-blue);
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--neon-blue);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--neon-blue), inset 0 0 10px var(--neon-blue);
}

.btn-primary.lg {
    font-size: 1rem;
    padding: 1rem 2.5rem;
}

/* Sections */
.section {
    padding: 6rem 5% 4rem;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 5%;
}

.hero-content {
    max-width: 800px;
    transition: transform 0.1s ease-out;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    color: #a0a0a0;
    margin-bottom: 2.5rem;
    letter-spacing: 1px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--neon-purple);
    margin: 10px auto 0;
    box-shadow: 0 0 10px var(--neon-purple);
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.card {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 243, 255, 0.1);
}

.card p {
    line-height: 1.8;
    font-size: 1.1rem;
    color: #ccc;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1000px;
}

.project-card h3 {
    color: var(--neon-purple);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.project-card p {
    font-size: 1rem;
}

.hobby-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.hobby-list li {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 1rem;
    background: rgba(255,255,255,0.02);
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all 0.3s;
}

.hobby-list li:hover {
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.15) inset;
    transform: scale(1.02);
}

/* Forms */
.form-container {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-group {
    position: relative;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 10px 0;
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 10px;
    border: none;
    border-bottom: 1px solid var(--glass-border);
    outline: none;
    background: transparent;
    transition: border-color 0.3s;
    font-family: 'Inter', sans-serif;
}

.input-group textarea {
    resize: vertical;
}

.input-group label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    color: #888;
    pointer-events: none;
    transition: .3s ease all;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label,
.input-group textarea:focus ~ label,
.input-group textarea:not(:placeholder-shown) ~ label {
    top: -20px;
    font-size: 0.75rem;
    color: var(--neon-purple);
}

.input-group input:focus,
.input-group textarea:focus {
    border-bottom-color: var(--neon-purple);
    box-shadow: 0 1px 0 0 var(--neon-purple);
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
    color: #666;
    font-size: 0.9rem;
    background: rgba(0,0,0,0.5);
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-color);
    transition: 0.3s;
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        flex-direction: column;
        justify-content: center;
        background: rgba(5,5,5,0.98);
        backdrop-filter: blur(15px);
        width: 100%;
        height: 100vh;
        transition: 0.5s ease;
    }
    
    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .section {
        padding: 6rem 5% 2rem;
    }
}