:root {
  --blue: #0066cc;
  --blue-dark: #004f9e;
  --ink: #1d1d1f;
  --muted: #5f6368;
  --line: #e3e6ea;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --wa: #128c4b;
  --radius: 14px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.6; font-size: 17px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 100; }

/* header */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { text-decoration: none; color: var(--ink); display: inline-flex; align-items: center; }
.wordmark { font-weight: 700; font-size: 1.4rem; letter-spacing: -.02em; }
.wordmark-e { color: var(--blue); }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a:not(.btn) { color: var(--ink); text-decoration: none; font-size: .95rem; }
.nav a:not(.btn):hover, .nav a.active { color: var(--blue); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; }

/* buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 1px solid transparent; font-size: 1rem; cursor: pointer; font-family: inherit; }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-primary.btn-wa { background: var(--wa); }
.btn-primary.btn-wa:hover { background: #0d6e3a; }
.btn-ghost { border-color: var(--blue); color: var(--blue); background: transparent; }
.btn-ghost:hover { background: #eef5fc; }

/* hero & page head */
.hero { background: linear-gradient(180deg, #eef5fc 0%, #fff 100%); padding: 88px 0 72px; text-align: center; }
.hero h1 { max-width: 860px; margin-left: auto; margin-right: auto; }
.eyebrow { color: var(--blue); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .85rem; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 720px; margin-left: auto; margin-right: auto; }
.actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }
.page-head { background: var(--bg-alt); padding: 64px 0 48px; text-align: center; border-bottom: 1px solid var(--line); }

/* sections */
.sec { padding: 64px 0; }
.sec:nth-of-type(even) { background: var(--bg-alt); }
.sec h2 { text-align: center; }
.sec h2 + p { text-align: center; color: var(--muted); max-width: 720px; margin: 0 auto 2em; }
.sec ul, .sec ol:not(.steps) { padding-left: 1.2em; }
.sec li { margin-bottom: .4em; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(256px, 1fr)); gap: 20px; margin-top: 24px; }
/* exactly four cards: one row of four on wide screens */
.cards:has(> .card:nth-child(4):last-child) { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.sec:nth-of-type(odd) .card { background: var(--bg-alt); border-color: transparent; }
.card h3 { color: var(--ink); }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card ul { padding-left: 1.1em; color: var(--muted); font-size: .95rem; }

.steps { list-style: none; counter-reset: step; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 24px; }
.step { counter-increment: step; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step::before { content: counter(step); display: inline-flex; width: 36px; height: 36px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 700; align-items: center; justify-content: center; margin-bottom: 12px; }
.step p:last-child { margin-bottom: 0; }

.faq { max-width: 820px; margin: 24px auto 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { font-weight: 600; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--blue); font-weight: 700; }
.faq details[open] summary::after { content: "\2013"; }
.faq details div { padding-top: 10px; color: var(--muted); }

.block { border-radius: var(--radius); padding: 32px; margin: 24px 0; }
.block-cta { background: var(--blue); color: #fff; text-align: center; padding: 48px 32px; }
.block-cta h2, .block-cta h3 { color: #fff; }
.block-cta p { color: #dbe9f8; max-width: 640px; margin-left: auto; margin-right: auto; }
.block-cta a { display: inline-block; margin-top: 8px; padding: 12px 22px; border-radius: 999px; background: #fff; color: var(--blue); font-weight: 600; text-decoration: none; }
.block-note { background: #eef5fc; border-left: 4px solid var(--blue); }
.block-center { text-align: center; }

blockquote { margin: 1.5em 0; padding: 0 0 0 18px; border-left: 4px solid var(--blue); color: var(--muted); font-size: 1.1rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }

/* WhatsApp contact form */
.wa-form { max-width: 560px; margin: 24px auto 0; display: grid; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.wa-form label { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }
.wa-form input, .wa-form select, .wa-form textarea { font: inherit; font-weight: 400; padding: 11px 13px; border: 1px solid #c9ced6; border-radius: 10px; background: #fff; color: var(--ink); }
.wa-form input:focus, .wa-form select:focus, .wa-form textarea:focus { outline: 2px solid var(--blue); outline-offset: 1px; border-color: var(--blue); }
.wa-form .btn { justify-self: start; }
.form-note { color: var(--muted); font-size: .85rem; margin: 0; }
.form-error { color: #b3261e; font-size: .9rem; margin: 0; }

/* footer */
.footer { background: #111418; color: #b9c0c8; padding: 48px 0; font-size: .95rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer .wordmark { color: #fff; }
.footer-brand { max-width: 460px; }
.footer-brand p { margin-top: 12px; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.footer-links nav { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links nav a { color: #e6e9ed; text-decoration: none; }
.footer-links nav a:hover { color: #fff; text-decoration: underline; }
.copy { color: #7d8691; font-size: .85rem; }

/* floating WhatsApp button */
.wa-float { position: fixed; right: 18px; bottom: 18px; width: 56px; height: 56px; border-radius: 50%; background: var(--wa); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 20px rgba(0,0,0,.2); z-index: 60; }
.wa-float:hover { background: #0d6e3a; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; border-bottom: 1px solid var(--line); padding: 8px 20px 16px; }
  .nav.open { display: flex; }
  .nav a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 12px; text-align: center; }
  .hero { padding: 56px 0 48px; }
  .sec { padding: 48px 0; }
  .block { padding: 24px; }
}