:root {
    --bg: #0f1115;
    --panel: #161a22;
    --text: #e8ebf0;
    --muted: #9aa3b2;
    --accent: #25d366;
    --accent-dark: #1eb358;
    --border: #232936;
    --radius: 14px;
    --max: 980px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

header {
    border-bottom: 1px solid var(--border);
    background: rgba(15,17,21,0.85);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}
header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 18px;
    padding-bottom: 18px;
}
.logo {
    font-weight: 700;
    font-size: 22px;
    letter-spacing: -0.02em;
}
.cta-link {
    color: var(--accent);
    font-weight: 500;
}

.hero {
    padding: 96px 0 64px;
    text-align: center;
}
.hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}
.subtitle {
    color: var(--muted);
    font-size: 19px;
    max-width: 640px;
    margin: 0 auto 36px;
}
.cta {
    display: inline-block;
    background: var(--accent);
    color: #0a0d12;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 999px;
    transition: background 0.15s ease;
}
.cta:hover { background: var(--accent-dark); }

section { padding: 64px 0; }

.how h2, .start h2 {
    font-size: 32px;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
    text-align: center;
}

.steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.steps li {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
}
.step-num {
    display: inline-flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #0a0d12;
    font-weight: 700;
    border-radius: 999px;
    margin-bottom: 12px;
}
.steps h3 { font-size: 18px; margin-bottom: 6px; }
.steps p { color: var(--muted); }

.start {
    text-align: center;
}
.start p { color: var(--muted); margin-bottom: 12px; }
.whatsapp-num {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 24px;
    color: var(--accent) !important;
    margin: 16px 0 20px !important;
}
.note { font-size: 14px; }

footer {
    border-top: 1px solid var(--border);
    padding: 28px 0;
    color: var(--muted);
    font-size: 14px;
}
footer .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
footer a:hover { color: var(--text); }