:root {
    --bg-color: #0a0a0a;
    --text-color: #00ff41;
    --accent-color: #00ff41;
    --header-bg: #1a1a1a;
    --terminal-bg: #000000;
    --nav-bg: rgba(10, 10, 10, 0.8);
    --font-mono: 'Fira Code', 'Courier New', Courier, monospace;
    --shadow-glow: 0 0 10px rgba(0, 255, 65, 0.5);
    --transition: all 0.3s ease;
}

[data-theme="light"] {
    --bg-color: #f4f4f9;
    --text-color: #2d3436;
    --accent-color: #0984e3;
    --header-bg: #dfe6e9;
    --terminal-bg: #ffffff;
    --nav-bg: rgba(244, 244, 249, 0.8);
    --shadow-glow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* Improved spacing and UI appearance */
body {
    padding: 10px;
}
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 10%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: var(--shadow-glow);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-color);
    transition: var(--transition);
}

.github-btn {
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 4px;
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: var(--transition);
}

.github-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: var(--shadow-glow);
}

/* Main Content */
main {
    padding-top: 120px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 50px;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--text-color), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero h1 {
    background: linear-gradient(45deg, var(--text-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.7;
}

/* Terminal Styles */
.terminal-container {
    width: 90%;
    max-width: 900px;
    background: var(--terminal-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), var(--shadow-glow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    cursor: text;
}

.terminal-hidden-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.command-text {
    color: var(--text-color);
    margin-left: 10px;
}

.terminal-header {
    background: var(--header-bg);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.terminal-title {
    margin-left: auto;
    margin-right: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    opacity: 0.5;
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    min-height: 450px;
    max-height: 600px;
    overflow-y: auto;
    color: var(--text-color);
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.2);
    position: relative;
}

/* Nano Editor Styles */
.nano-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.nano-header {
    background: #fff;
    color: #000;
    padding: 2px 10px;
    font-size: 0.8rem;
    font-weight: bold;
    font-family: var(--font-mono);
}

.nano-content {
    flex: 1;
    background: transparent;
    color: var(--text-color);
    border: none;
    outline: none;
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    resize: none;
}

.nano-footer {
    background: #000;
    border-top: 1px solid #333;
    padding: 5px 10px;
    display: flex;
    gap: 20px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

.nano-shortcut span {
    background: #fff;
    color: #000;
    padding: 0 4px;
    margin-right: 4px;
    font-weight: bold;
}

.terminal-line {
    margin-bottom: 8px;
    white-space: pre-wrap;
}

.prompt {
    color: var(--accent-color);
    font-weight: bold;
}

.cursor {
    display: inline-block;
    width: 8px;
    height: 18px;
    background: var(--accent-color);
    margin-left: 5px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

/* Responsive */
.content-section {
    padding: 80px 10%;
    max-width: 1200px;
    width: 100%;
}

.content-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--accent-color);
    text-shadow: var(--shadow-glow);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--header-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-glow);
}

.feature-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.feature-card p {
    opacity: 0.8;
    font-size: 0.95rem;
}

.impl-details {
    background: var(--terminal-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.impl-details ul {
    margin-top: 1.5rem;
    list-style: none;
}

.impl-details li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.impl-details li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-family: var(--font-mono);
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 5%;
    }
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .terminal-container {
        width: 95%;
    }
    .content-section {
        padding: 40px 5%;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--header-bg);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #333;
}