/* ============================================================
   AXEN DESIGN SYSTEM — página de guia (web, tema light)
   Página offwhite, cards brancos, ilhas escuras (hero e CTA).
   ============================================================ */

@font-face { font-family:'Baradig'; src:url('assets/fonts/BaradigMedium.ttf') format('truetype'); font-weight:500; font-display:swap; }
@font-face { font-family:'Baradig'; src:url('assets/fonts/BaradigSemibold.ttf') format('truetype'); font-weight:600; font-display:swap; }
@font-face { font-family:'Baradig'; src:url('assets/fonts/BaradigBold.ttf') format('truetype'); font-weight:700; font-display:swap; }

@font-face { font-family:'Satoshi'; src:url('assets/fonts/Satoshi-Regular.otf') format('opentype'); font-weight:400; font-display:swap; }
@font-face { font-family:'Satoshi'; src:url('assets/fonts/Satoshi-Medium.otf') format('opentype'); font-weight:500; font-display:swap; }
@font-face { font-family:'Satoshi'; src:url('assets/fonts/Satoshi-Bold.otf') format('opentype'); font-weight:700; font-display:swap; }

:root {
  /* Brand */
  --axen-black: #000000;
  --axen-navy: #003152;
  --axen-cyan: #89d9e8;
  --axen-cyan-light: #d1fcff;
  --axen-offwhite: #f2f2f2;

  /* Superfícies — claro */
  --bg: var(--axen-offwhite);
  --surface: #ffffff;
  --text: #0b0f12;
  --text-muted: rgba(11,15,18,0.66);
  --text-dim: rgba(11,15,18,0.46);
  --line: rgba(11,15,18,0.12);
  --line-strong: rgba(11,15,18,0.22);

  /* Acento: navy sobre claro, cyan sobre escuro (ver .hero / .cta) */
  --accent: var(--axen-navy);

  /* Tipografia */
  --font-display: 'Baradig', Georgia, serif;
  --font-body: 'Satoshi', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Sombras */
  --shadow-1: 0 1px 2px rgba(0,49,82,0.06), 0 6px 20px rgba(0,49,82,0.07);
  --shadow-2: 0 2px 4px rgba(0,49,82,0.08), 0 16px 40px rgba(0,49,82,0.10);

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0.6, 0.2, 1);
  --dur-base: 200ms;

  /* Layout */
  --doc-width: 1100px;
  --gutter: 20px;
}

/* Ilhas escuras: invertem os tokens localmente */
.on-dark {
  --text: var(--axen-offwhite);
  --text-muted: rgba(242,242,242,0.68);
  --text-dim: rgba(242,242,242,0.46);
  --line: rgba(242,242,242,0.16);
  --line-strong: rgba(242,242,242,0.24);
  --accent: var(--axen-cyan);
  color: var(--text);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--axen-black); }

.wrap { max-width: var(--doc-width); margin: 0 auto; padding: 0 var(--gutter); }

/* ====== Topbar ======================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(242,242,242,0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar .wrap {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--axen-black); }
.brand .symbol { width: 22px; height: 22px; color: var(--axen-black); flex-shrink: 0; }
.brand .wordmark { height: 14px; width: auto; color: var(--axen-black); }

.back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  border: 1px solid var(--line-strong);
  padding: 7px 12px;
  border-radius: 6px;
  transition: color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}
.back:hover { color: var(--axen-navy); border-color: rgba(0,49,82,0.45); }

/* ====== Primitivas do design system =================================== */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--accent); flex-shrink: 0; }
.eyebrow .num { color: var(--accent); margin-right: 4px; }

h1.display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(27px, 7.4vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  text-wrap: balance;
}

h2.title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 5.4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  text-wrap: balance;
}

h3.subtitle {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.22;
  margin: 0 0 16px;
}

.lede {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 60ch;
  margin: 0 0 28px;
}

p.body { color: var(--text-muted); max-width: 68ch; }

.spec {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.spec b { color: var(--accent); font-weight: 500; }

.mono { font-family: var(--font-mono); }
.cyan { color: var(--accent); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid currentColor;
  padding: 4px 8px;
  border-radius: 2px;
  opacity: 0.85;
}

.kv {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  max-width: 560px;
}
.kv dt { color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.kv dd { color: var(--text); margin: 0; }

.card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--surface);
}
.card .corners > i {
  position: absolute; width: 8px; height: 8px;
  border: 1px solid var(--accent); opacity: 0.55;
}
.card .corners > i:nth-child(1) { top:-1px; left:-1px;  border-right:0; border-bottom:0; }
.card .corners > i:nth-child(2) { top:-1px; right:-1px; border-left:0;  border-bottom:0; }
.card .corners > i:nth-child(3) { bottom:-1px; left:-1px;  border-right:0; border-top:0; }
.card .corners > i:nth-child(4) { bottom:-1px; right:-1px; border-left:0;  border-top:0; }

/* ====== Hero (ilha escura) ============================================ */

.hero {
  position: relative;
  overflow: hidden;
  margin: 28px 0 40px;
  padding: 36px 22px;
  border: 1px solid rgba(11,15,18,0.2);
  background-color: #000;
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.62) 100%),
    url('assets/textures/gradient-05.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: var(--shadow-2);
}

/* ====== Passos ======================================================== */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 56px;
}

.step {
  padding: 26px 20px;
  box-shadow: var(--shadow-1);
}

.step-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-bottom: 14px;
}
.step-head .spec { white-space: nowrap; }

.step ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.step li { display: flex; gap: 10px; }
.step li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  background: var(--accent);
}
.step li span { font-size: 14px; color: var(--text-muted); }

/* ====== CTA (ilha escura) ============================================= */

.cta {
  position: relative;
  overflow: hidden;
  padding: 36px 22px;
  border: 1px solid rgba(11,15,18,0.2);
  background-color: #000;
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.78) 100%),
    url('assets/textures/gradient-05.webp');
  background-size: cover;
  background-position: center;
  margin-bottom: 48px;
  box-shadow: var(--shadow-2);
}

.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: transform var(--dur-base) var(--ease-standard), filter var(--dur-base) var(--ease-standard);
}
.btn-cta.primary { background: var(--axen-cyan); color: #05080a; }
.btn-cta.primary:hover { color: #05080a; filter: brightness(1.08); }
.btn-cta.ghost { border-color: var(--line-strong); color: var(--text); background: rgba(255,255,255,0.06); }
.btn-cta.ghost:hover { color: var(--axen-cyan); border-color: rgba(137,217,232,0.5); }
.btn-cta:hover { transform: translateY(-1px); }
.btn-cta:active { transform: translateY(0) scale(0.99); }

/* ====== Rodapé ======================================================== */

.page-footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 40px;
}
.page-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
}
.page-footer span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ====== Breakpoints =================================================== */

@media (min-width: 480px) {
  :root { --gutter: 28px; }
  .hero { padding: 48px 32px; }
  .cta { padding: 44px 32px; }
  .step { padding: 30px 26px; }
  .kv { grid-template-columns: 110px 1fr; gap: 10px 20px; font-size: 12px; }
}

@media (min-width: 700px) {
  :root { --gutter: 40px; }
  body { font-size: 16px; }
  .hero { padding: 64px 56px; margin: 48px 0 56px; }
  .cta { padding: 56px; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .step { padding: 32px; }
  .lede { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}