:root {
    --bg: #0f172a;
    --card: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.08);
    --text: #e2e8f0;
    --muted: #94a3b8;
    --accent: #6366f1;
    --accent2: #22c55e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top, #1e293b, #020617);
    color: var(--text);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

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

.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px solid var(--border);
}

.brand h1 {
    margin: 0;
    font-size: 18px;
}

.hero {
    text-align: center;
    margin-bottom: 80px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: var(--muted);
    max-width: 700px;
    margin: 0 auto 30px;
}

.btn {
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.section {
    margin-bottom: 80px;
}

.section h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.section p {
    color: var(--muted);
    line-height: 1.6;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    transition: 0.3s;
}

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

ul {
    padding-left: 20px;
    color: var(--muted);
}

.cta {
    text-align: center;
    padding: 40px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(34, 197, 94, 0.2));
    border: 1px solid var(--border);
}

footer {
    text-align: center;
    color: var(--muted);
    margin-top: 60px;
}