/* --- Base Setup --- */
body {
    background-color: #0a0a1a; /* Dark blue background */
    color: #ffffff;
    overflow-x: hidden;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; /* Place canvas behind everything */
}

/* --- Header --- */
.welcome-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 2rem;
    z-index: 10;
    background: linear-gradient(to bottom, rgba(10, 10, 26, 0.7), transparent);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

/* --- Main Content --- */
.main-content {
    position: relative;
    z-index: 1;
    padding: 2rem;
}

/* --- Hero Section --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 80px; /* Offset for header */
}

.hero-section h1 {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-section p {
    font-size: 1.25rem;
    max-width: 650px;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.btn-cta {
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
}

/* --- Features Section --- */
.features-section {
    padding: 5rem 0;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.features-section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
    .hero-section p {
        font-size: 1rem;
    }
    .features-section h2 {
        font-size: 2rem;
    }
    .welcome-header {
        padding: 1rem;
    }
}