@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Roboto:wght@300;400;700&display=swap');

:root {
    --primary-green: #2ecc71;
    --dark-background: rgba(18, 18, 18, 0.8);
    --secondary-green: #27ae60;
    --text-light: #e0e0e0;
}

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

body, html {
    height: 100%;
    overflow-x: hidden;
}

.video-background {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    width: 1200px;
    height: 800px;
    z-index: -100;
    object-fit: cover;
    opacity: 100%;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--dark-background);
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
}

/* Rest of the previous CSS remains the same, with slight modifications to account for video background */
.floating-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 15, 15, 0.9);
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
}

.nav-links a.active {
    position: relative;
    color: #fff; /* Keep the text color unchanged */
}

.nav-links a.active::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-green);
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    color: var(--primary-green);
    margin-right: 10px;
    font-weight: bold;
}

.logo-full {
    font-size: 1.2rem;
    color: var(--text-light);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-green);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.content-wrapper {
    max-width: 1200px;
    margin: 100px auto 0;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

.hero-section {
    text-align: center;
    background-color: rgba(30, 30, 30, 0.7);
    padding: 60px 20px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.hero-section h1 {
    font-size: 3.5rem;
    color: var(--primary-green);
    margin-bottom: 15px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.content-card {
    background-color: rgba(40, 40, 40, 0.8);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-green);
}

.content-card h2 {
    color: var(--primary-green);
    margin-bottom: 15px;
}

.content-card ul {
    list-style-type: none;
    margin-top: 15px;
}

.content-card ul li {
    padding: 5px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.learning-path {
    background-color: rgba(30, 30, 30, 0.7);
    padding: 40px;
    border-radius: 10px;
}

.path-timeline {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.path-step {
    text-align: center;
    flex: 1;
    padding: 20px;
    background-color: rgba(50, 50, 50, 0.5);
    margin: 0 10px;
    border-radius: 5px;
}

.site-footer {
    background-color: rgba(15, 15, 15, 0.9);
    padding: 30px 0 15px;
    margin-top: 30px;
    position: relative;
    z-index: 10;
}

.footer-content {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding: 0 15px;
    gap: 20px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    font-size: 0.9rem;
}

.footer-column h4 {
    color: var(--primary-green);
    margin-bottom: 10px;
    font-size: 1rem;
}

.footer-column a {
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: 5px;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    text-align: center;
    margin-top: 20px;
    padding-top: 10px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}


/* Sidebar */
.list-group {
    margin-top: 100px;
    background-color: #1e1e1e;
    border-radius: 5px;
}

.list-group-item {
    background-color: #1e1e1e;
    color: #00ff99;
    border: 1px solid #333;
    transition: all 0.3s;
}

.list-group-item:hover {
    background-color: #00ccff;
    color: #121212;
    font-weight: bold;
}

.list-group-item.active {
    background-color: #00ff99 !important;
    color: #121212 !important;
    border-left: 4px solid #00ccff;
    font-weight: bold;
}

/* Content Area */
#content-area {
    margin-top: 100px;
    background-color: #1e1e1e;
    padding: 20px;
    border-radius: 10px;
    border: 2px solid #00ccff;
    box-shadow: 0 0 10px rgba(0, 255, 153, 0.5);
}

h2 {
    color: #00ccff;
    border-bottom: 2px solid #00ff99;
    padding-bottom: 5px;
    display: inline-block;
}

p {
    color: #d0d0d0;
}

/* Forms and Buttons */
.form-group {
    margin-bottom: 15px;
}

label {
    color: #00ff99;
    font-weight: bold;
}

input, select {
    background-color: #1e1e1e;
    border: 1px solid #00ff99;
    color: #00ccff;
    padding: 8px;
    border-radius: 5px;
}

input::placeholder {
    color: #888;
}

button.btn-primary {
    background-color: #00ccff;
    border: none;
    color: #121212;
    font-weight: bold;
}

button.btn-primary:hover {
    background-color: #00ff99;
}

button.btn-secondary {
    background-color: #444;
    border: none;
    color: #d0d0d0;
}

button.btn-secondary:hover {
    background-color: #666;
}

.result {
    margin-top: 10px;
    padding: 10px;
    background-color: #222;
    border-left: 4px solid #00ccff;
    color: #00ff99;
}

.error {
    color: #ff4444;
    background-color: #330000;
    padding: 10px;
    border-left: 4px solid #ff4444;
    font-weight: bold;
    margin-top: 10px;
}

/* Section specific styles */
.calculator-container {
    max-width: 100%;
    margin: 0 auto;
}

.swap-arrows {
    font-size: 2rem;
    color: #4CAF50;
    margin: 1rem 0;
    text-align: center;
}

.calculator-title {
    color: #4CAF50;
    margin-bottom: 2rem;
    font-size: 2rem;
    font-weight: bold;
}

.button-group {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}