:root {
    --bg: #f7f8fc;              /* light, matching a17lab.com */
    --panel: #ffffff;
    --text: #1c1d21;
    --muted: #6b7280;
    --accent: #6c5ce7;          /* A17LAB purple */
    --accent2: #8b7bf0;
    --border: #e6e8f0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Top navbar with A17LAB logo (links to homepage) */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 24px 0;
}
.navbar .brand { display: inline-flex; align-items: center; }
.navbar .brand img { display: block; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}
.nav-links a:hover { color: var(--accent); }

.wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: 48px 24px 64px;
}

/* Hero */
.hero { text-align: center; padding: 48px 0 56px; }

.logo {
    display: inline-block;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: 44px;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 18px;
    color: var(--muted);
    max-width: 560px;
    margin: 0 auto 32px;
}

.cta {
    display: inline-block;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.3);
    transition: transform 0.15s, box-shadow 0.15s;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(108, 92, 231, 0.4); }

.sub { margin-top: 14px; font-size: 13px; color: var(--muted); }

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 24px 0 56px;
}
.feature {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 22px;
    box-shadow: 0 2px 12px rgba(28, 29, 33, 0.04);
}
.feature h3 { font-size: 16px; margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--muted); }

/* Key box (after purchase) */
.key-box {
    background: var(--panel);
    border: 1px solid var(--accent);
    border-radius: 14px;
    padding: 28px;
    text-align: center;
    margin-bottom: 48px;
}
.key-box h2 { margin-bottom: 12px; }
.key-box p { color: var(--muted); margin-bottom: 16px; }
.key-display {
    background: #f1f0fc;
    border: 1px dashed var(--accent);
    border-radius: 10px;
    padding: 16px;
    margin: 8px 0 12px;
}
.key-display code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 22px;
    letter-spacing: 2px;
    color: var(--accent);
}
.key-note { font-size: 13px; }

/* How-to */
.how {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    margin-bottom: 40px;
}
.how h2 { font-size: 20px; margin-bottom: 16px; }
.how ol { padding-left: 20px; }
.how li { margin-bottom: 8px; color: var(--muted); }
.how strong { color: var(--text); }

/* Footer */
.foot {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--text); }

/* Legal pages (privacy / terms / refund) */
.legal { max-width: 760px; padding-top: 32px; }
.legal h1 { font-size: 32px; margin-bottom: 4px; letter-spacing: -0.5px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.legal h2 {
    font-size: 19px;
    margin: 28px 0 10px;
    color: var(--text);
}
.legal p, .legal li { color: #3a3c44; font-size: 15px; }
.legal p { margin-bottom: 12px; }
.legal ul { margin: 0 0 12px; padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--accent); text-decoration: none; }
.legal a:hover { text-decoration: underline; }
.legal strong { color: var(--text); }

@media (max-width: 640px) {
    .hero h1 { font-size: 34px; }
    .features { grid-template-columns: 1fr; }
    .legal h1 { font-size: 26px; }
}