/* Global Reset and Variables (Neon Cyan Theme) */
:root {
    --primary-color: #00bcd4; /* Neon Cyan */
    --background-color: #1a1a1a; /* Dark background */
    --text-color: #e0e0e0; /* Light text */
    --card-bg: #222222; /* Slightly lighter dark for cards */
    --font-stack: 'Roboto', sans-serif; 
    --coder-font: 'Fira Code', monospace; /* For highlights */
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    scroll-behavior: smooth;
}

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

/* Header & Navigation */
header {
    background-color: #121212;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-color);
    font-family: var(--coder-font);
}

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

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

nav ul li {
    margin-left: 35px;
}

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    padding: 5px 0;
    transition: color 0.3s ease;
    border-bottom: 2px solid transparent;
}

nav ul li a:hover, nav ul li a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

/* Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 80px 0;
    gap: 60px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 900;
}
.hero-content h1 .wave {
    display: inline-block;
    animation: wave-animation 2.5s infinite;
}

.tagline {
    font-size: 1.1rem;
    margin-bottom: 25px;
    max-width: 550px;
}

.skills-highlight {
    font-family: var(--coder-font);
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #ccc;
}

.skill-tag {
    color: #f44336; /* Secondary color for contrast */
    font-weight: bold;
}

/* Hero Image & Neon Glow */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.glowing-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    box-shadow: 0 0 15px var(--primary-color), 0 0 25px var(--primary-color) inset;
    transition: all 0.5s ease;
}

.glowing-circle:hover {
    box-shadow: 0 0 25px var(--primary-color), 0 0 40px var(--primary-color) inset;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s, color 0.3s;
    font-family: var(--coder-font);
    text-transform: uppercase;
}

.primary-btn {
    background-color: var(--primary-color);
    color: var(--background-color);
    border: 2px solid var(--primary-color);
}

.primary-btn:hover {
    background-color: transparent;
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-color);
    font-weight: 500;
}

.section-title .highlight {
    color: var(--primary-color);
    font-weight: 900;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    padding-top: 20px;
}

.skill-card {
    background-color: var(--card-bg);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #333;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 188, 212, 0.3); /* Neon Shadow */
    border-color: var(--primary-color);
}

.skill-card i {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    /* Optional: Small glow on icons */
    text-shadow: 0 0 5px var(--primary-color);
}

.skill-card h3 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.skill-card p {
    font-size: 0.9rem;
    color: #a0a0a0;
}

/* Footer */
footer {
    background-color: #121212;
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
    border-top: 1px solid #333;
}

/* Keyframe for Wave Animation */
@keyframes wave-animation {
    0%, 100% { transform: rotate(0deg); }
    15% { transform: rotate(14deg); }
    30% { transform: rotate(-8deg); }
    40% { transform: rotate(14deg); }
    50% { transform: rotate(-4deg); }
    60% { transform: rotate(10deg); }
    70% { transform: rotate(0deg); }
}

/* Responsive Design */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        min-height: auto;
    }
    .hero-content, .hero-image {
        max-width: 100%;
    }
    .hero-image {
        order: -1; /* Image pehle dikhega */
    }
    nav ul {
        /* Mobile menu ke liye yahan CSS add kar sakte hain, abhi hidden hai */
    }
}