:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-blue: #4facfe;
    --accent-green: #00f260;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
}

/* Header */
header {
    display: flex;
    align-items: center;
    padding: 2rem 5%;
    position: sticky;
    top: 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 0 5px var(--accent-blue));
}

.brand-name {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem;
    background: radial-gradient(circle at 50% 50%, rgba(79, 172, 254, 0.1) 0%, transparent 50%);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
}

.mascot-large {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 50px rgba(0, 242, 96, 0.2);
    margin-bottom: 3rem;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* Features Glass Cards */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 5%;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.card h3 {
    color: var(--accent-green);
    margin-top: 0;
}

/* Tutorial Section */
.tutorial {
    padding: 4rem 5%;
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
}

.step {
    display: flex;
    gap: 20px;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.step-num {
    font-size: 3rem;
    font-weight: 800;
    color: var(--glass-border);
    line-height: 1;
}

.step-content h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
}

code {
    background: #1a1a1a;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--accent-blue);
    font-family: 'Fira Code', monospace;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

/* Feedback Section */
.feedback textarea,
.feedback select {
    font-family: var(--font-main);
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s, background 0.3s;
}

.feedback textarea:focus,
.feedback select:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.1);
}

.feedback button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(79, 172, 254, 0.4);
}

```