/* blue41 brand (same tokens as the app): navy/black backgrounds, cyan + off-white highlights, Goldman headings */
:root {
  --black: #000000;
  --navy: #111224;
  --navy-2: #16203F;
  --cyan: #019EE2;
  --cyan-soft: rgba(1, 158, 226, 0.12);
  --purple: #7B5CFF;
  --text: #E9EEF8;
  --muted: #93A3BF;
  --border: rgba(1, 158, 226, 0.22);
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: radial-gradient(1200px 700px at 80% -10%, var(--navy-2), transparent 60%), var(--black);
  color: var(--text);
  font: 16px/1.6 "Inter", system-ui, sans-serif;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--cyan-soft); padding: 1px 6px; border-radius: 4px; font-size: 0.9em; }

.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(5, 9, 19, 0.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand:hover { text-decoration: none; }
.brand-b41 { font: 700 26px "Goldman", sans-serif; color: var(--cyan); }
.brand-name { font: 400 12px "Goldman", sans-serif; letter-spacing: 1px; color: var(--text); }
nav { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; justify-content: flex-end; }
nav a { color: var(--text); }

/* support buttons in the platforms' own colours (Patreon coral, Buy Me a Coffee yellow) */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px; font: 600 14px "Inter", sans-serif; white-space: nowrap;
  transition: transform 0.15s, box-shadow 0.15s;
}
.pill:hover { text-decoration: none; transform: translateY(-1px); }
.pill svg { width: 15px; height: 15px; fill: currentColor; }
nav a.pill.patreon, .pill.patreon { background: #FF424D; color: #FFFFFF; }
.pill.patreon:hover { box-shadow: 0 6px 20px rgba(255, 66, 77, 0.35); }
nav a.pill.coffee, .pill.coffee { background: #FFDD00; color: #000000; }
.pill.coffee:hover { box-shadow: 0 6px 20px rgba(255, 221, 0, 0.3); }
.pill.big { padding: 12px 22px; font-size: 16px; }
.pill.big svg { width: 18px; height: 18px; }

main { max-width: 1120px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }

section { padding: 56px 0; }
h1, h2, h3 { font-family: "Goldman", sans-serif; font-weight: 700; line-height: 1.15; }
h1 { font-size: clamp(34px, 5vw, 56px); margin: 16px 0; }
h2 { font-size: clamp(26px, 3vw, 34px); margin: 0 0 24px; }
h3 { font-size: 19px; margin: 0 0 8px; }
.accent { color: var(--cyan); text-shadow: 0 0 24px rgba(1, 158, 226, 0.45); }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 32px; padding-top: 40px; }
.hero-art { width: 100%; height: auto; max-width: 480px; justify-self: center; filter: drop-shadow(0 0 30px rgba(1, 158, 226, 0.25)); }
.lead { font-size: 18px; color: var(--text); max-width: 56ch; }
.small { font-size: 13px; color: var(--muted); }

.badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--cyan-soft); color: var(--cyan);
  font: 600 13px "Inter", sans-serif; letter-spacing: 0.3px;
}

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 12px; }
.cta.center { justify-content: center; }
.button {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--text); background: var(--navy);
  font-weight: 600; transition: transform 0.15s, box-shadow 0.15s;
}
.button:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(1, 158, 226, 0.18); }
.button.primary { background: var(--cyan); color: var(--black); border-color: var(--cyan); }
.button.disabled { opacity: 0.55; cursor: default; pointer-events: none; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: linear-gradient(180deg, var(--navy), rgba(17, 18, 36, 0.6));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.card p { margin: 0; color: var(--muted); }
.card.soft { background: rgba(17, 18, 36, 0.45); }
.card ul { margin: 8px 0 0; padding-left: 18px; color: var(--muted); }
.card li { margin: 6px 0; }
.card li b { color: var(--text); font-weight: 600; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 10px; vertical-align: middle; }
.dot.dev { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.dot.plan { background: var(--purple); box-shadow: 0 0 10px var(--purple); }

.support { text-align: center; }
.support p { color: var(--muted); }

footer { border-top: 1px solid var(--border); padding: 28px clamp(16px, 4vw, 48px); text-align: center; color: var(--muted); font-size: 14px; }
footer p { margin: 6px 0; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
  .hero-art { max-width: 320px; order: -1; }
  .columns { grid-template-columns: 1fr; }
  nav { gap: 10px; font-size: 14px; }
  nav > a:not(.pill) { display: none; }
  .pill { padding: 6px 11px; font-size: 13px; }
}

/* language menu (header) + language links (footer) */
.lang { position: relative; }
.lang summary { list-style: none; cursor: pointer; color: var(--text); font-size: 14px; padding: 4px 8px; border-radius: 8px; border: 1px solid var(--border); }
.lang summary::-webkit-details-marker { display: none; }
.lang-menu { position: absolute; right: 0; top: calc(100% + 8px); display: grid; min-width: 150px; padding: 6px;
  background: var(--navy); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); }
.lang-menu a { color: var(--text); padding: 6px 10px; border-radius: 6px; }
.lang-menu a:hover, .lang-menu a[aria-current] { background: var(--cyan-soft); text-decoration: none; color: var(--cyan); }
footer .langs { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 14px; font-size: 13px; }
footer .langs a { color: var(--muted); }
footer .langs a[aria-current] { color: var(--cyan); }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq-item { background: rgba(17, 18, 36, 0.6); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; }
.faq-item summary { cursor: pointer; font-weight: 600; color: var(--text); }
.faq-item p { margin: 10px 0 0; color: var(--muted); }
@media (max-width: 820px) { nav > a:not(.pill) { display: none; } }

/* showcase: app screenshots in a window frame, one at a time */
.showcase { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.showcase h2 { align-self: flex-start; }
.screen { width: 100%; max-width: 960px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--navy); box-shadow: 0 0 40px rgba(1, 158, 226, 0.18), 0 20px 50px rgba(0, 0, 0, 0.6); cursor: pointer; }
.screen-bar { display: flex; justify-content: flex-end; height: 30px; background: #0B0C18; border-bottom: 1px solid var(--border); }
.screen-bar i { position: relative; width: 44px; }
.screen-bar i::before, .screen-bar i::after { content: ""; position: absolute; left: 50%; top: 50%; border-color: rgba(147, 163, 191, 0.7); }
.screen-bar i:nth-child(1)::before { width: 10px; border-top: 1px solid; transform: translate(-50%, 0); }
.screen-bar i:nth-child(2)::before { width: 9px; height: 9px; border: 1px solid; transform: translate(-50%, -50%); }
.screen-bar i:nth-child(3)::before, .screen-bar i:nth-child(3)::after { width: 13px; border-top: 1px solid; }
.screen-bar i:nth-child(3)::before { transform: translate(-50%, 0) rotate(45deg); }
.screen-bar i:nth-child(3)::after { transform: translate(-50%, 0) rotate(-45deg); }
.screen-shots { position: relative; aspect-ratio: 1280 / 800; }
.screen-shots img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left;
  opacity: 0; transition: opacity 450ms; }
.screen-shots img.on { opacity: 1; }
.showcase-label { margin: 0; padding: 6px 16px; border: 1px solid var(--border); border-radius: 999px; background: rgba(17, 18, 36, 0.75);
  color: var(--text); font-size: 15px; font-weight: 600; text-align: center; transition: opacity 250ms; }
.showcase-label.switching { opacity: 0; }
.showcase-dots { display: flex; gap: 8px; }
.showcase-dots button { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(147, 163, 191, 0.35); cursor: pointer; }
.showcase-dots button.on { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
@media (prefers-reduced-motion: reduce) { .screen-shots img, .showcase-label { transition: none; } }

/* footer: made in Brazil */
.made-in { display: inline-flex; align-items: center; gap: 7px; opacity: 0.85; }
.made-in .flag { width: 20px; height: 14px; }

/* footer: visitor globe (RevolverMaps) */
.globe { display: flex; justify-content: center; margin: 14px 0 4px; min-height: 200px; }

/* guides: list on the home page + guide pages */
.section-lead { color: var(--muted); margin: -12px 0 20px; }
.guide-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.guide-card { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 18px;
  border: 1px solid var(--border); border-radius: var(--radius); background: rgba(17, 18, 36, 0.6); color: var(--text); font-weight: 600; }
.guide-card b { color: var(--cyan); }
.guide-card:hover { border-color: var(--cyan); text-decoration: none; }
main.guide { max-width: 820px; }
.guide article { padding-top: 24px; }
.guide h1 { font-size: clamp(28px, 4vw, 42px); }
.guide h2 { font-size: 22px; margin: 32px 0 12px; }
nav.crumbs { display: block; text-align: left; padding-top: 24px; font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--muted); }
.steps, .tips { padding-left: 22px; color: var(--text); }
.steps li, .tips li { margin: 10px 0; line-height: 1.55; }
.steps li::marker { color: var(--cyan); font-weight: 700; }
.tips li { color: var(--muted); }
.tips li b, .steps li b { color: var(--text); }
.guide .cta { margin-top: 28px; }