/* General body and font styles */
body {
    background: #121212;
    background: linear-gradient(180deg, #121212 0%, #171c1b 100%);
    color: #ffffff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Common container for content */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header & Navigation Styles --- */
.main-header {
    background-color: rgba(18, 18, 18, 0.5);
    backdrop-filter: blur(5px);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
}

.nav-left {
    display: flex;
    align-items: center;
}

.nav-right {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-right li {
    margin-left: 20px;
}

.nav-link {
    color: #cccccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #4CAF50;
}

.nav-separator {
    color: #444;
}

.logo-container {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #ffffff;
    font-size: 18px;
    font-weight: bold;
}

.site-title {
    margin-left: 10px;
    color: #4CAF50;
    text-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

/* --- CSS-only Robot Logo --- */
.robot-logo {
    position: relative;
    width: 30px;
    height: 30px;
    background-color: #4CAF50;
    border-radius: 6px;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

.robot-logo.large {
    width: 80px;
    height: 80px;
    border-radius: 12px;
}

.robot-logo .head {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 6px;
    overflow: hidden;
}

.robot-logo.large .head {
    border-radius: 12px;
}

.robot-logo .eye-left, .robot-logo .eye-right {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: #121212;
    border-radius: 50%;
    top: 10px;
}

.robot-logo.large .eye-left, .robot-logo.large .eye-right {
    width: 16px;
    height: 16px;
    top: 25px;
}

.robot-logo .eye-left {
    left: 7px;
}

.robot-logo .eye-right {
    right: 7px;
}

.robot-logo .mouth {
    position: absolute;
    width: 14px;
    height: 4px;
    background-color: #121212;
    border-radius: 2px;
    bottom: 7px;
    left: 50%;
    transform: translateX(-50%);
}

.robot-logo.large .mouth {
    width: 30px;
    height: 8px;
    bottom: 20px;
}

.robot-logo .antenna-left, .robot-logo .antenna-right {
    position: absolute;
    width: 2px;
    height: 10px;
    background-color: #4CAF50;
    top: -10px;
    transform: rotate(45deg);
}

.robot-logo .antenna-right {
    transform: rotate(-45deg);
}

.robot-logo.large .antenna-left, .robot-logo.large .antenna-right {
    width: 4px;
    height: 20px;
    top: -20px;
}

.robot-logo.large .antenna-left {
    left: 20px;
}

.robot-logo.large .antenna-right {
    right: 20px;
}

/* --- Hero Section Styles --- */
.hero-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding-top: 60px; /* Space for the fixed header */
    text-align: center;
}

.hero-content h1 {
    font-size: 3em;
    color: #4CAF50;
    margin-bottom: 0;
}

.hero-content h2 {
    font-size: 2.5em;
    margin-top: 5px;
    color: #fff;
    font-weight: normal;
}

.hero-content p {
    max-width: 600px;
    margin: 20px auto;
    font-size: 1.1em;
    color: #ccc;
}

.hero-buttons {
    margin-top: 30px;
}

.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary {
    background-color: #4CAF50;
    color: #121212;
    margin-right: 15px;
}

.btn-secondary {
    background-color: #2c2c2c;
    color: #ffffff;
    border: 1px solid #444;
}

/* --- Stats Section Styles --- */
.stats-section {
    background-color: #202020;
    padding: 50px 0;
    text-align: center;
}

.stats-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.stat-box {
    background-color: #2c2c2c;
    padding: 20px;
    border-radius: 8px;
    flex: 1;
    min-width: 200px;
}

.stat-number {
    font-size: 2.5em;
    font-weight: bold;
    color: #4CAF50;
}

.stat-label {
    font-size: 1em;
    color: #ccc;
}

/* --- Features Section Styles --- */
.features-section {
    text-align: center;
    padding: 80px 20px;
}

.features-section h2 {
    font-size: 2em;
    color: #4CAF50;
    margin-bottom: 5px;
}

.features-section p {
    color: #ccc;
    font-size: 1.1em;
}