/* Viral Prompt Lab — dark premium, mobile-first */
:root {
  --bg: #0a0a12;
  --bg2: #101019;
  --card: #14141f;
  --line: #23232f;
  --text: #f2f2f7;
  --muted: #a7a7b8;
  --accent: #8b5cf6;
  --accent2: #ec4899;
  --wa: #25d366;
  --radius: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,18,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.logo { font-weight: 800; font-size: 1.05rem; text-decoration: none; letter-spacing: .2px; }
.nav-links { display: none; gap: 22px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: .95rem; }
.nav-links a:hover { color: var(--text); }

/* BUTTONS */
.btn {
  display: inline-block; text-decoration: none; text-align: center;
  padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s, opacity .15s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 8px 28px rgba(139,92,246,.35);
}
.btn-ghost { border-color: var(--line); color: var(--text); background: var(--bg2); }
.btn-small { padding: 10px 20px; font-size: .9rem; }
.btn-disabled { opacity: .55; cursor: not-allowed; }
.btn-wa { background: var(--wa); color: #062b16; font-size: 1.05rem; padding: 16px 34px; }

/* LAYOUT */
.section { padding: 72px 20px; }
.wrap { max-width: 1100px; margin: 0 auto; }
.wrap.narrow { max-width: 720px; }
.eyebrow {
  text-transform: uppercase; letter-spacing: 2px; font-size: .78rem;
  color: var(--accent2); font-weight: 700; margin-bottom: 12px;
}
h1 { font-size: clamp(2.4rem, 7vw, 4.2rem); line-height: 1.08; letter-spacing: -1px; margin-bottom: 18px; }
h2 { font-size: clamp(1.7rem, 4.5vw, 2.5rem); letter-spacing: -.5px; margin-bottom: 14px; }
.grad {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { color: var(--muted); font-size: 1.08rem; max-width: 640px; margin-bottom: 26px; }
.center-note { text-align: center; color: var(--muted); margin-top: 26px; font-size: .95rem; }

/* HERO */
.hero {
  padding: 90px 20px 70px; text-align: center;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(139,92,246,.22), transparent),
    radial-gradient(600px 300px at 80% 10%, rgba(236,72,153,.16), transparent);
}
.hero-inner { max-width: 760px; margin: 0 auto; }
.hero .lede { margin-left: auto; margin-right: auto; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 44px; }
.trust-row { display: flex; gap: 34px; justify-content: center; flex-wrap: wrap; }
.trust-row div { display: flex; flex-direction: column; }
.trust-row strong { font-size: 1.7rem; }
.trust-row span { color: var(--muted); font-size: .85rem; }

/* FREE */
.free { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.free .lede { margin-left: auto; margin-right: auto; }
.capture { display: flex; flex-direction: column; gap: 12px; max-width: 480px; margin: 0 auto; }
.capture input {
  padding: 15px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font-size: 1rem; width: 100%;
}
.capture input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.micro { color: var(--muted); font-size: .82rem; }
.form-note { margin-top: 16px; color: #4ade80; font-weight: 600; }

/* GRID */
.grid { display: grid; grid-template-columns: 1fr; gap: 22px; margin-top: 34px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; position: relative; display: flex; flex-direction: column;
  transition: transform .18s, border-color .18s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card img { aspect-ratio: 1/1; object-fit: cover; width: 100%; }
.card-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 1.25rem; letter-spacing: -.2px; }
.card-body p { color: var(--muted); font-size: .95rem; flex: 1; }
.tag { font-size: .75rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent2); font-weight: 700; }
.card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.price { font-size: 1.6rem; font-weight: 800; }
.card.featured { border: 2px solid var(--accent); }
.ribbon {
  position: absolute; top: 14px; right: -34px; transform: rotate(38deg);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; font-size: .72rem; font-weight: 800; letter-spacing: 1px;
  padding: 6px 40px; text-transform: uppercase; z-index: 2;
}
.card.soon { opacity: .92; }
span.soon { color: #fbbf24; font-weight: 600; font-size: .95rem; }

/* HOW */
.how { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 30px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step .n {
  display: inline-flex; width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  align-items: center; justify-content: center; font-weight: 800; margin-bottom: 14px;
}
.step h3 { margin-bottom: 8px; font-size: 1.1rem; }
.step p { color: var(--muted); font-size: .95rem; }

/* WHATSAPP */
.wa { text-align: center; }
.wa .lede { margin-left: auto; margin-right: auto; }

/* FAQ */
details {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 12px;
}
summary { font-weight: 700; cursor: pointer; font-size: 1.02rem; }
details p { color: var(--muted); margin-top: 10px; font-size: .95rem; }

/* FOOTER */
footer { border-top: 1px solid var(--line); padding: 44px 20px; background: var(--bg2); }
.foot { text-align: center; display: flex; flex-direction: column; gap: 8px; }

/* TABLET+ */
@media (min-width: 640px) {
  .nav-links { display: flex; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .capture { flex-direction: row; }
  .capture input { flex: 1; }
  .capture .btn { white-space: nowrap; }
  .capture .micro { flex-basis: 100%; }
}
@media (min-width: 1024px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}