/* =============================================================================
   Kronos Systems — Hub
   style.css — folha de estilos única e organizada
   ----------------------------------------------------------------------------
   Sumário:
     01. Tokens & temas
     02. Reset & base
     03. Tipografia & utilidades de texto
     04. Layout (container, seção, divider)
     05. Acessibilidade (skip link, focus)
     06. Fundo decorativo (aurora, grid, anel do hero)
     07. Header fixo
     08. Hero
     09. Cabeçalho de seção (índice [01])
     10. Cards de sistema
     11. Painel de status & uptime
     12. Sobre
     13. Métricas globais
     14. Footer
     15. Componentes (botões, badges, pills)
     16. Animações & reveal-on-scroll
     17. Responsivo
     18. prefers-reduced-motion
   ============================================================================ */


/* ============================================================================
   01. Tokens & temas
   ============================================================================ */
:root {
  /* Backgrounds */
  --bg-0: #02060a;
  --bg-1: #061018;
  --bg-2: #0a1622;
  --surface: rgba(8, 18, 26, 0.72);
  --surface-elev: rgba(12, 24, 34, 0.85);

  /* Brand Kronos (paleta global) */
  --cyan: #1be3d6;
  --cyan-soft: #5cf0e6;
  --cyan-dim: #0fb5aa;
  --blue: #1d8bff;
  --blue-deep: #0a4a8a;

  /* Status colors (semântica universal) */
  --status-ok: #22c55e;
  --status-warn: #f59e0b;
  --status-down: #ef4444;

  /* Texto */
  --ink: #cfeef0;
  --ink-strong: #ffffff;
  --ink-dim: #7da6ad;
  --ink-muted: #4a6970;

  /* Linhas & glow */
  --line: rgba(27, 227, 214, 0.18);
  --line-strong: rgba(27, 227, 214, 0.4);
  --glow-cyan: 0 0 40px rgba(27, 227, 214, 0.35);
  --glow-blue: 0 0 40px rgba(29, 139, 255, 0.3);

  /* Tipografia */
  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Rajdhani', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Spacing (escala 4) */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px;  --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px;  --sp-8: 64px;
  --sp-9: 96px; --sp-10: 128px;

  /* Radii */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* Sombras tingidas (não usam preto puro) */
  --shadow-sm: 0 4px 14px rgba(2, 10, 18, 0.45);
  --shadow-md: 0 18px 40px rgba(2, 10, 18, 0.55);
  --shadow-lg: 0 32px 80px rgba(2, 10, 18, 0.65);

  /* Transições */
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --t-fast: 180ms;
  --t-med: 320ms;
  --t-slow: 480ms;

  /* Layout */
  --container-max: 1240px;
  --container-pad: clamp(20px, 4vw, 56px);
  --section-gap: clamp(80px, 10vw, 160px);
}


/* ============================================================================
   02. Reset & base
   ============================================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

html,
body {
  min-height: 100%;
}

body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul {
  list-style: none;
}


/* ============================================================================
   03. Tipografia
   ============================================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink-strong);
  line-height: 1.15;
  letter-spacing: 0.02em;
}

p {
  color: var(--ink);
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--cyan);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}


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

main {
  position: relative;
  z-index: 2;
}

.section {
  padding-block: var(--section-gap);
  position: relative;
}

.section + .section {
  padding-top: 0; /* reduz espaçamento dobrado entre seções consecutivas */
}

.divider-line {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.6;
}


/* ============================================================================
   05. Acessibilidade
   ============================================================================ */
.skip-link {
  position: fixed;
  top: -200px;
  left: 16px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--cyan);
  color: var(--bg-0);
  border-radius: var(--r-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: top var(--t-fast) var(--ease-out);
}

.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

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


/* ============================================================================
   06. Fundo decorativo (aurora + grid + anel do hero)
   ============================================================================ */
.bg-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-decor__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27, 227, 214, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 227, 214, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center top, black 25%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center top, black 25%, transparent 75%);
}

.bg-decor__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  will-change: transform;
  opacity: 0.85;
}

.bg-decor__blob--1 {
  width: 640px;
  height: 640px;
  left: -180px;
  top: -160px;
  background: radial-gradient(circle, rgba(27, 227, 214, 0.5) 0%, rgba(27, 227, 214, 0) 65%);
  animation: drift1 22s ease-in-out infinite;
}

.bg-decor__blob--2 {
  width: 560px;
  height: 560px;
  right: -160px;
  top: 6%;
  background: radial-gradient(circle, rgba(29, 139, 255, 0.45) 0%, rgba(29, 139, 255, 0) 65%);
  animation: drift2 26s ease-in-out infinite;
}

.bg-decor__blob--3 {
  width: 480px;
  height: 480px;
  left: 40%;
  top: 50%;
  background: radial-gradient(circle, rgba(92, 240, 230, 0.35) 0%, rgba(92, 240, 230, 0) 65%);
  animation: drift3 30s ease-in-out infinite;
}

@keyframes drift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(190px, 100px) scale(1.18); }
  66%      { transform: translate(70px, 230px) scale(0.92); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40%      { transform: translate(-220px, -130px) scale(1.22); }
  75%      { transform: translate(-90px, -260px) scale(0.88); }
}
@keyframes drift3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  25%      { transform: translate(calc(-50% + 170px), calc(-50% - 90px)) scale(1.15); }
  60%      { transform: translate(calc(-50% - 210px), calc(-50% + 150px)) scale(0.85); }
}


/* ============================================================================
   07. Header fixo
   ============================================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  padding-block: 14px;
  background: linear-gradient(180deg, rgba(2, 6, 10, 0.65) 0%, rgba(2, 6, 10, 0) 100%);
  transition: background var(--t-med) var(--ease-out),
              border-color var(--t-med) var(--ease-out),
              padding var(--t-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(2, 6, 10, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
  padding-block: 10px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-strong);
}

.brand__mark {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 0 12px rgba(27, 227, 214, 0.5));
}

.brand__wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.28em;
  background: linear-gradient(90deg, var(--cyan-soft), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  padding: 6px 2px;
  position: relative;
  transition: color var(--t-fast) var(--ease-out);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--cyan);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  transform: scaleX(1);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 9px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  transition: background var(--t-fast) var(--ease-out),
              color var(--t-fast) var(--ease-out),
              box-shadow var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out);
}

.nav__cta:hover,
.nav__cta:focus-visible {
  background: rgba(27, 227, 214, 0.1);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.nav__cta [data-lucide] {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  color: var(--ink);
}

.nav-toggle [data-lucide] {
  width: 22px;
  height: 22px;
}

/* Drawer mobile — sempre oculto por padrão; ativado só no media query mobile */
.nav__panel {
  display: none;
}


/* ============================================================================
   08. Hero
   ============================================================================ */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(120px, 14vh, 180px);
  padding-bottom: clamp(60px, 8vh, 100px);
  position: relative;
}

.hero__index {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
}

.hero__index::after {
  content: '';
  width: 64px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3.2rem, 11vw, 8rem);
  letter-spacing: 0.18em;
  line-height: 0.95;
  background: linear-gradient(180deg, var(--cyan-soft) 0%, var(--cyan) 45%, var(--blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: -0.06em; /* compensa letter-spacing à esquerda */
}

.hero__wordmark-row {
  display: flex;
  align-items: baseline;
  gap: clamp(8px, 1.4vw, 18px);
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}

.hero__wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1rem, 2vw, 1.4rem);
  letter-spacing: 0.5em;
  color: var(--ink-dim);
  text-transform: lowercase;
  padding-left: 6px;
}

.hero__lead {
  max-width: 620px;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: var(--sp-7);
}

.hero__lead strong {
  color: var(--ink-strong);
  font-weight: 600;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 56px);
  margin-top: auto;
}

.hero__stat {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
}

.hero__stat::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}

.hero__scroll {
  position: absolute;
  bottom: clamp(20px, 4vh, 40px);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 0.65rem;
  color: var(--ink-dim);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero__scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  animation: scrollPulse 2.4s var(--ease-out) infinite;
}

@keyframes scrollPulse {
  0%   { opacity: 0.2; transform: scaleY(0.3); transform-origin: top; }
  50%  { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
  100% { opacity: 0.2; transform: scaleY(0.3); transform-origin: bottom; }
}

/* Anel rotativo decorativo atrás do hero */
.hero__ring {
  position: absolute;
  top: 50%;
  right: clamp(-200px, -8vw, -80px);
  transform: translateY(-50%);
  width: clamp(420px, 50vw, 720px);
  height: clamp(420px, 50vw, 720px);
  pointer-events: none;
  opacity: 0.55;
}

.hero__ring svg {
  width: 100%;
  height: 100%;
  animation: ringSpin 60s linear infinite;
}

@keyframes ringSpin {
  to { transform: rotate(360deg); }
}


/* ============================================================================
   09. Cabeçalho de seção
   ============================================================================ */
.section-head {
  margin-bottom: clamp(40px, 5vw, 64px);
  max-width: 760px;
}

.section-head__index {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.section-head__index::after {
  content: '';
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-3);
  color: var(--ink-strong);
}

.section-head__subtitle {
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  color: var(--ink-dim);
  max-width: 56ch;
}


/* ============================================================================
   10. Cards de sistema
   ============================================================================ */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.card-system {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--t-slow) var(--ease-out),
              border-color var(--t-med) var(--ease-out),
              box-shadow var(--t-med) var(--ease-out);
  /* Cor de acento por produto (definida via data-attr abaixo) */
  --accent: var(--cyan);
  --accent-soft: var(--cyan-soft);
  --accent-rgb: 27, 227, 214;
}

.card-system[data-product="docvault"] {
  --accent: #8b5cf6;
  --accent-soft: #a78bfa;
  --accent-rgb: 139, 92, 246;
}

.card-system[data-product="fixly"] {
  --accent: var(--cyan);
  --accent-soft: var(--cyan-soft);
  --accent-rgb: 27, 227, 214;
}

.card-system::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(var(--accent-rgb), 0) 0%,
    rgba(var(--accent-rgb), 0.5) 35%,
    rgba(29, 139, 255, 0.5) 65%,
    rgba(var(--accent-rgb), 0) 100%
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-med) var(--ease-out);
  pointer-events: none;
}

.card-system:hover {
  transform: translateY(-6px);
  border-color: rgba(var(--accent-rgb), 0.45);
  box-shadow:
    var(--shadow-lg),
    0 0 60px rgba(var(--accent-rgb), 0.2);
}

.card-system:hover::before {
  opacity: 1;
}

.card-system__preview {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.card-system__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow) var(--ease-out);
}

.card-system:hover .card-system__preview img {
  transform: scale(1.04);
}

.card-system__status {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  background: rgba(2, 6, 10, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.card-system__body {
  padding: clamp(24px, 3vw, 32px);
}

.card-system__head {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.card-system__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  letter-spacing: 0.06em;
  color: var(--ink-strong);
}

.card-system__tagline {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: var(--sp-4);
}

.card-system__desc {
  color: var(--ink-dim);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: var(--sp-5);
}

.card-system__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--sp-5);
}

.card-system__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-2) var(--sp-4);
  padding: var(--sp-4) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--sp-5);
}

.card-system__metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.card-system__metric-label {
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.card-system__metric-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.02rem;
  color: var(--ink-strong);
}

.card-system__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}


/* ============================================================================
   11. Painel de status & uptime
   ============================================================================ */
.status-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4) var(--sp-6);
  margin-bottom: var(--sp-5);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-dim);
}

.status-meta span strong {
  color: var(--ink);
  font-weight: 500;
}

.status-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.status-row {
  padding: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
}

.status-row:last-child {
  border-bottom: 0;
}

.status-row__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.status-row__name-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.status-row__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--ink-strong);
}

.status-row__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
}

.status-row__pill strong {
  color: var(--ink);
  font-weight: 500;
}

.status-row__uptime-label {
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.uptime-grid {
  display: grid;
  grid-template-columns: repeat(90, minmax(0, 1fr));
  gap: 2px;
  height: 36px;
}

.uptime-bar {
  border-radius: 2px;
  background: var(--status-ok);
  opacity: 0.85;
  transition: transform var(--t-fast) var(--ease-out), opacity var(--t-fast) var(--ease-out);
  cursor: help;
}

.uptime-bar[data-state="degraded"] {
  background: var(--status-warn);
}

.uptime-bar[data-state="down"] {
  background: var(--status-down);
}

.uptime-bar:hover {
  transform: scaleY(1.25);
  opacity: 1;
}

.uptime-foot {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
}


/* ============================================================================
   12. Sobre
   ============================================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.about-text__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.2;
  color: var(--ink-strong);
  margin-bottom: var(--sp-5);
  max-width: 16ch;
}

.about-text p {
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: var(--sp-4);
  max-width: 52ch;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-stack {
  padding-top: 30px;
}

.about-stack__label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--sp-4);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stack-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  transition: border-color var(--t-fast) var(--ease-out),
              transform var(--t-fast) var(--ease-out),
              background var(--t-fast) var(--ease-out);
}

.stack-chip:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  background: var(--surface-elev);
}

.stack-chip [data-lucide] {
  width: 22px;
  height: 22px;
  color: var(--cyan);
}


/* ============================================================================
   13. Métricas globais
   ============================================================================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 2vw, 20px);
}

.metric-card {
  position: relative;
  padding: clamp(24px, 3vw, 36px) clamp(20px, 2.4vw, 28px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color var(--t-med) var(--ease-out),
              transform var(--t-med) var(--ease-out),
              box-shadow var(--t-med) var(--ease-out);
}

.metric-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--glow-cyan);
}

.metric-card:nth-child(2) {
  /* card de uptime levemente maior — ritmo visual */
  transform: scale(1.04);
}

.metric-card:nth-child(2):hover {
  transform: scale(1.04) translateY(-3px);
}

.metric-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--sp-4);
  color: var(--cyan);
}

.metric-card__icon [data-lucide] {
  width: 24px;
  height: 24px;
  stroke-width: 1.75;
}

.metric-card__value {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  line-height: 1;
  background: linear-gradient(180deg, var(--cyan-soft), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: var(--sp-2);
  font-variant-numeric: tabular-nums;
}

.metric-card__value-suffix {
  font-size: 0.55em;
  -webkit-text-fill-color: var(--cyan);
  color: var(--cyan);
}

.metric-card__label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-dim);
}


/* ============================================================================
   14. Footer
   ============================================================================ */
.site-footer {
  position: relative;
  z-index: 2;
  padding-top: clamp(64px, 8vw, 96px);
  padding-bottom: var(--sp-6);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(2, 6, 10, 0) 0%, rgba(2, 6, 10, 0.8) 60%);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  margin-bottom: clamp(48px, 6vw, 72px);
}

.site-footer__col-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--sp-3);
}

.site-footer__brand p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-top: var(--sp-3);
  max-width: 28ch;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-dim);
  font-size: 0.95rem;
  transition: color var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out);
}

.site-footer__links a [data-lucide] {
  width: 14px;
  height: 14px;
  opacity: 0.6;
  transition: opacity var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out);
}

.site-footer__links a:hover {
  color: var(--cyan);
}

.site-footer__links a:hover [data-lucide] {
  opacity: 1;
  transform: translateX(2px);
}

.site-footer__bottom {
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
}

.site-footer__bottom span strong {
  color: var(--cyan);
  font-weight: 500;
}


/* ============================================================================
   15. Componentes (botões, badges, pills)
   ============================================================================ */

/* Botão primário (gradiente cyan→blue, fill) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bg-0);
  background: linear-gradient(135deg, var(--cyan-soft), var(--blue));
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  box-shadow: 0 8px 30px rgba(27, 227, 214, 0.25);
  transition: transform var(--t-fast) var(--ease-out),
              box-shadow var(--t-fast) var(--ease-out),
              filter var(--t-fast) var(--ease-out);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 14px 40px rgba(27, 227, 214, 0.35);
}

.btn-primary [data-lucide] {
  width: 16px;
  height: 16px;
  stroke-width: 2.5;
  transition: transform var(--t-fast) var(--ease-out);
}

.btn-primary:hover [data-lucide] {
  transform: translateX(3px);
}

/* Botão secundário (outline cyan) */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(27, 227, 214, 0.04);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  transition: background var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out),
              color var(--t-fast) var(--ease-out),
              transform var(--t-fast) var(--ease-out);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(27, 227, 214, 0.1);
  border-color: var(--cyan);
  color: var(--cyan-soft);
  transform: translateY(-1px);
}

.btn-ghost [data-lucide] {
  width: 16px;
  height: 16px;
  stroke-width: 2;
}

/* Link textual com seta */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-dim);
  transition: color var(--t-fast) var(--ease-out);
}

.link-arrow:hover,
.link-arrow:focus-visible {
  color: var(--cyan);
}

.link-arrow [data-lucide] {
  width: 14px;
  height: 14px;
  transition: transform var(--t-fast) var(--ease-out);
}

.link-arrow:hover [data-lucide] {
  transform: translate(2px, 2px);
}

/* Pill de stack/tag */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-dim);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(27, 227, 214, 0.04);
}

/* Indicador de status (bolinha) */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.status-dot--operational {
  background: var(--status-ok);
  box-shadow: 0 0 10px var(--status-ok);
}

.status-dot--degraded {
  background: var(--status-warn);
  box-shadow: 0 0 10px var(--status-warn);
}

.status-dot--down {
  background: var(--status-down);
  box-shadow: 0 0 10px var(--status-down);
}

/* Pulso (apenas para "operacional") */
.status-dot--operational::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid var(--status-ok);
  animation: pulseRing 2.4s var(--ease-out) infinite;
}

@keyframes pulseRing {
  0%   { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2.2); opacity: 0;   }
}


/* ============================================================================
   16. Animações & reveal-on-scroll
   ============================================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out),
              transform 700ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero > * {
  animation: fadeUp 800ms var(--ease-out) both;
}

.hero__index           { animation-delay: 100ms; }
.hero__wordmark-row    { animation-delay: 200ms; }
.hero__lead            { animation-delay: 350ms; }
.hero__ctas            { animation-delay: 480ms; }
.hero__stats           { animation-delay: 620ms; }
.hero__scroll          { animation-delay: 800ms; }
.hero__ring            { animation-delay: 200ms; opacity: 0.55; }


/* ============================================================================
   17. Responsivo
   ============================================================================ */
@media (max-width: 1024px) {
  .systems-grid {
    grid-template-columns: 1fr;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: clamp(32px, 5vw, 56px);
  }
  .about-stack {
    padding-top: 0;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: clamp(64px, 12vw, 96px);
  }
  .nav__links {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-toggle[aria-expanded="true"] + .nav__panel {
    display: flex;
  }
  .nav__panel {
    display: none;
    position: absolute;
    top: 100%;
    right: var(--container-pad);
    flex-direction: column;
    gap: var(--sp-3);
    padding: var(--sp-4);
    background: rgba(2, 6, 10, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    min-width: 200px;
    box-shadow: var(--shadow-md);
  }
  .uptime-grid {
    /* Mobile: barra ainda densa mas com altura levemente maior */
    height: 32px;
  }
  .hero {
    min-height: 86vh;
  }
  .hero__ring {
    opacity: 0.35;
    right: -30%;
  }
}

@media (max-width: 640px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .metric-card:nth-child(2) {
    transform: none;
  }
  .metric-card:nth-child(2):hover {
    transform: translateY(-3px);
  }
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
  .site-footer__bottom {
    justify-content: center;
    text-align: center;
  }
  .hero__title {
    font-size: clamp(2.6rem, 14vw, 4rem);
    letter-spacing: 0.12em;
  }
  .hero__ctas .btn-primary,
  .hero__ctas .btn-ghost {
    width: 100%;
    justify-content: center;
  }
  .card-system__metrics {
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
  }
}


/* ============================================================================
   18. prefers-reduced-motion
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .bg-decor__blob,
  .hero__ring svg,
  .status-dot--operational::after {
    animation: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}