* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --primary: #646cff;
    --primary-dark: #545bdf;
    --secondary: #8b5cf6;
    --dark: #1e1e2e;
    --darker: #171724;
    --dark-light: #252536;
    --gray: #a0a0b0;
    --light: #e2e2e2;
    --success: #64ffa3;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--darker);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(100, 108, 255, 0.3);
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover {
    background: rgba(100, 108, 255, 0.1);
}