/* =========================================================
   QuantX Engenharia — Design tokens & componentes
   Paleta:  Ink #0B0D0F · Graphite #1C2126 · Signal Orange #F2831F
            Deep Rust #C2560A · Steel Silver #B8BEC4 · Paper #F3F4F5
   Tipos:   Display  -> Big Shoulders Display (condensada, industrial)
            Corpo    -> IBM Plex Sans
            Técnico  -> IBM Plex Mono (labels, specs, dados)
   ========================================================= */

:root {
  --ink: #0B0D0F;
  --graphite: #1C2126;
  --graphite-2: #262C33;
  --orange: #F2831F;
  --rust: #C2560A;
  --silver: #B8BEC4;
  --paper: #F3F4F5;
  --ink-text: #14171A;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  color: var(--ink-text);
  background-color: var(--paper);
}

.font-display {
  font-family: 'Big Shoulders Display', system-ui, sans-serif;
}

.font-mono {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
}

/* ---------- Eyebrow / rótulos técnicos ---------- */
.eyebrow {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 500;
}

/* ---------- Linha de cota (assinatura visual do site) ----------
   Inspirada nas linhas de dimensão de desenhos técnicos de engenharia. */
.dim-rule {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 200px;
  height: 12px;
  color: var(--orange);
}
.dim-rule.is-light { color: var(--rust); }
.dim-rule .tick {
  width: 1px;
  height: 10px;
  background: currentColor;
  flex-shrink: 0;
}
.dim-rule .line {
  flex: 1;
  height: 1px;
  background: currentColor;
}
.dim-rule .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  margin: 0 3px;
  flex-shrink: 0;
}

/* ---------- Grid de plotagem (blueprint) para seções escuras ---------- */
.blueprint-grid {
  position: relative;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(242, 131, 31, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 131, 31, 0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: center;
}
.blueprint-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(11,13,15,0) 0%, rgba(11,13,15,0.85) 85%);
  pointer-events: none;
}
.blueprint-grid > * { position: relative; z-index: 1; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.85rem 1.5rem;
  border-radius: 2px;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background-color: var(--orange);
  color: var(--ink);
  font-weight: 600;
}
.btn-primary:hover {
  background-color: var(--rust);
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline {
  border: 1px solid rgba(184, 190, 196, 0.4);
  color: var(--paper);
}
.btn-outline:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-1px);
}
.btn-outline-dark {
  border: 1px solid rgba(20, 23, 26, 0.25);
  color: var(--ink-text);
}
.btn-outline-dark:hover {
  border-color: var(--rust);
  color: var(--rust);
  transform: translateY(-1px);
}

/* ---------- Cards ---------- */
.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px -12px rgba(11, 13, 15, 0.25);
  border-color: var(--orange);
}

/* ---------- Badges de status (usados também no admin) ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  ring: 1px;
}

/* ---------- Navegação mobile ---------- */
#mobile-menu {
  transition: max-height 0.25s ease, opacity 0.2s ease;
  overflow: hidden;
}
#mobile-menu.closed {
  max-height: 0;
  opacity: 0;
}
#mobile-menu.open {
  max-height: 480px;
  opacity: 1;
}

/* ---------- Header: sombra ao rolar ---------- */
#site-header.scrolled {
  box-shadow: 0 4px 20px -8px rgba(0,0,0,0.5);
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Spec sheet (usado em Sobre) ---------- */
.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed rgba(20, 23, 26, 0.15);
  font-size: 0.92rem;
}
.spec-row dt {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  color: #5b6570;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding-top: 0.15rem;
}
.spec-row dd { font-weight: 500; text-align: right; }

/* ---------- Acessibilidade: foco visível ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- Respeita prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, #mobile-menu, .card-hover, .btn { transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}