/* RewardFlow Enterprise — landing comercial */
:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface2: #eef1f6;
  --border: #d1d9e6;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #2563eb;
  --accent2: #1d4ed8;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --heroFrom: #dbeafe;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.65; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 72rem; margin: 0 auto; padding: 0 1.25rem; }
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.85rem 1.25rem; gap: 1rem; }
.logo { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.9rem; }
.nav a { color: var(--muted); }
.hero { padding: 4.5rem 0 3rem; text-align: center; background: radial-gradient(ellipse at top, var(--heroFrom), var(--bg) 65%); }
.hero h1 { font-size: clamp(1.85rem, 4vw, 2.75rem); margin: 0 0 0.75rem; }
.hero .tagline { font-size: 1.15rem; color: var(--muted); max-width: 42rem; margin: 0 auto 1.5rem; }
.hero-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 0.65rem 1.25rem; border-radius: 10px; font-weight: 600; border: 1px solid transparent; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
section { padding: 3.5rem 0; }
section:nth-child(even) { background: var(--surface); }
.section-head { text-align: center; margin-bottom: 2rem; }
.section-head h2 { font-size: 1.65rem; margin: 0 0 0.5rem; }
.section-head p { color: var(--muted); max-width: 48rem; margin: 0 auto; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }
.card { background: var(--surface2); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.card h3 { margin: 0 0 0.5rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.card .icon { font-size: 1.75rem; margin-bottom: 0.5rem; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; position: relative; padding: 0 0 1.5rem 3rem; border-left: 2px solid var(--border); margin-left: 1rem; }
.steps li::before { content: counter(step); position: absolute; left: -1.1rem; top: 0; width: 2rem; height: 2rem; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 700; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.85rem; }
.demo-block { background: var(--surface2); border: 1px dashed var(--border); border-radius: 12px; padding: 2rem; text-align: center; min-height: 140px; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.demo-block--capture { padding: 1rem; }
.demo-block--capture img { max-width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--border); margin-bottom: 0.75rem; }
.demo-block--capture p { margin: 0; font-size: 0.9rem; color: var(--muted); }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; }
.kpi { text-align: center; padding: 1rem; background: var(--surface2); border-radius: 10px; }
.kpi strong { display: block; font-size: 1.5rem; color: var(--accent); }
.faq details { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; margin-bottom: 0.75rem; }
.badges { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.badges span { background: var(--surface2); border: 1px solid var(--border); padding: 0.35rem 0.75rem; border-radius: 6px; font-size: 0.85rem; }
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding: 2rem 0; text-align: center; color: var(--muted); font-size: 0.9rem; }
@media (max-width: 640px) { .nav { display: none; } }