/* ============================================================
   NEXSAT TECHNOLOGIES — Base
   css/base.css — reset, tipografia, utilitários e animações
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-md);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color var(--t-base) var(--ease), color var(--t-base) var(--ease);
}

img, svg, canvas, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
/* :where() zera a especificidade — componentes podem definir margin/padding próprios */
:where(ul[role="list"], ol[role="list"]) { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
[hidden] { display: none !important; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text);
}

::selection { background: var(--brand); color: var(--on-brand); }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: 12px; left: 12px;
  z-index: 999;
  padding: 0.6rem 1rem;
  border-radius: var(--r-sm);
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 600;
  transform: translateY(-150%);
  transition: transform var(--t-fast) var(--ease);
}
.skip-link:focus { transform: none; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--sunken { background: var(--bg-sunken); }

.section-head {
  max-width: 760px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--split {
  max-width: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  align-items: end;
  justify-content: space-between;
}
.section-head--split > div { max-width: 680px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-ink);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.section-head--center .eyebrow::after {
  content: "";
  width: 22px; height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.section-title { font-size: var(--fs-3xl); }
.section-lead {
  margin-top: 1.1rem;
  font-size: var(--fs-lg);
  color: var(--text-2);
  max-width: 640px;
}
.section-head--center .section-lead { margin-inline: auto; }

.grad-text {
  background: linear-gradient(100deg, var(--cyan-400) 0%, var(--brand) 35%, var(--brand-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root[data-theme="light"] .grad-text {
  background-image: linear-gradient(100deg, #0090D0 0%, #0072B0 40%, #3D5BE0 100%);
}

.muted { color: var(--text-2); }
.mono { font-family: var(--font-mono); }

/* ---------- Reveal on scroll ---------- */
/* `html .reveal` vence as transições próprias dos cards (.cap, .plan…).
   Ao terminar, o JS remove a classe .reveal e o card volta às suas transições de hover. */
.reveal { opacity: 0; transform: translateY(26px); }
html .reveal {
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(46, 230, 166, 0.55); }
  50% { box-shadow: 0 0 0 6px rgba(46, 230, 166, 0); }
}
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}
@keyframes blink { 50% { opacity: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}