/* ==========================================================================
   GIGATECH — Stylesheet
   Design tokens, base, componentes e seções
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  /* Cores */
  --bg: #070B14;
  --bg-alt: #0A101F;
  --surface: #0E1628;
  --surface-2: #131D33;
  --border: rgba(148, 163, 184, 0.14);
  --text: #E6EDF7;
  --muted: #9FB0C7;
  --accent: #3B82F6;
  --accent-2: #06B6D4;
  --grad: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --success: #22C55E;
  --error: #F87171;

  /* Tipografia */
  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  /* Espaçamento (escala 8px) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* Outros */
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 76px;
  --container: 1200px;
  --shadow: 0 20px 60px rgba(2, 6, 17, 0.55);
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.02em;
}

p { margin: 0 0 var(--space-2); }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

ul, ol { padding: 0; margin: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: rgba(37, 99, 235, 0.45); color: #fff; }

.container {
  width: min(var(--container), 100% - 2.5rem);
  margin-inline: auto;
}

/* Texto com gradiente */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Animações de entrada (scroll reveal) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease-out, transform 600ms ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.75rem;
  min-height: 48px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
              background var(--transition), border-color var(--transition);
  touch-action: manipulation;
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.08);
}

.btn--light {
  background: #fff;
  color: #0A101F;
}

.btn--light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(2, 6, 17, 0.4);
}

.btn--sm { padding: 0.6rem 1.3rem; min-height: 42px; font-size: 0.875rem; }

.btn--full { width: 100%; }

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition),
              border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 100%;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.logo__mark {
  width: 32px;
  height: auto;
  color: var(--text);
  flex-shrink: 0;
}

.logo__lockup {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo__text {
  font-family: "Montserrat", var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.logo__tagline {
  font-family: "Montserrat", var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.nav { margin-left: auto; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover { color: var(--text); }

.nav__link.is-active {
  color: var(--text);
  background: rgba(59, 130, 246, 0.12);
}

.header__cta { flex-shrink: 0; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 12px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + var(--space-5)) 0 var(--space-6);
  overflow: hidden;
}

.hero__bg { position: absolute; inset: 0; pointer-events: none; }

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 40%, transparent 100%);
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
}

.hero__glow--1 {
  width: 480px; height: 480px;
  background: #2563EB;
  top: -140px; right: -80px;
}

.hero__glow--2 {
  width: 380px; height: 380px;
  background: #06B6D4;
  bottom: -120px; left: -100px;
  opacity: 0.22;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-6);
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.badge svg { width: 14px; height: 14px; }

.hero__title {
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.hero__subtitle {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--muted);
  max-width: 54ch;
  margin-bottom: var(--space-4);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.hero__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
}

.hero__highlights li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.hero__highlights svg {
  width: 17px; height: 17px;
  color: var(--accent-2);
  flex-shrink: 0;
}

/* Terminal ilustrativo */
.hero__visual { position: relative; }

.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.8rem 1.1rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}

.terminal__dot--r { background: #EF4444; }
.terminal__dot--y { background: #F59E0B; }
.terminal__dot--g { background: #22C55E; }

.terminal__title {
  margin-left: 8px;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.terminal__body {
  padding: 1.25rem 1.3rem;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.86rem;
  line-height: 2;
}

.terminal__body p { margin: 0; }

.t-prompt { color: var(--accent-2); font-weight: 600; }
.t-dim { color: var(--muted); }
.t-ok { color: var(--success); font-weight: 600; }

.t-cursor {
  display: inline-block;
  width: 9px; height: 17px;
  background: var(--accent-2);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* Cards flutuantes do hero */
.hero__card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.2rem;
  background: rgba(19, 29, 51, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  animation: float 5s ease-in-out infinite;
}

.hero__card svg {
  width: 26px; height: 26px;
  color: var(--accent-2);
  flex-shrink: 0;
}

.hero__card strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.05rem;
}

.hero__card span {
  font-size: 0.78rem;
  color: var(--muted);
}

.hero__card--uptime { top: -24px; right: 8px; }
.hero__card--support { bottom: -20px; left: -16px; animation-delay: 2.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- Seções ---------- */
.section { padding: var(--space-7) 0; }

.section--alt { background: var(--bg-alt); }

.section__head {
  max-width: 680px;
  margin: 0 auto var(--space-6);
  text-align: center;
}

.section__tag {
  display: inline-block;
  padding: 0.35rem 0.95rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 999px;
  margin-bottom: var(--space-2);
}

.section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
}

.section__desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}

/* ---------- Cards de serviços ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.card {
  position: relative;
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition),
              box-shadow var(--transition);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow);
}

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

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 14px;
  margin-bottom: var(--space-3);
}

.card__icon svg {
  width: 26px; height: 26px;
  color: var(--accent);
}

.card__title {
  font-size: 1.15rem;
  font-weight: 700;
}

.card__text {
  font-size: 0.94rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Diferenciais ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.feature {
  text-align: center;
  padding: var(--space-4) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}

.feature:hover {
  background: var(--surface);
  border-color: var(--border);
}

.feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  background: var(--grad);
  border-radius: 18px;
  margin-bottom: var(--space-3);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.35);
}

.feature__icon svg {
  width: 28px; height: 28px;
  color: #fff;
}

.feature h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.feature p {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Sobre ---------- */
.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-6);
  align-items: center;
}

.about__frame {
  position: relative;
  padding: var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about__frame::after {
  content: "";
  position: absolute;
  inset: -18px auto auto -18px;
  width: 110px; height: 110px;
  border: 2px solid rgba(6, 182, 212, 0.35);
  border-radius: var(--radius);
  z-index: -1;
}

.about__content .section__title { text-align: left; }

.about__content p { color: var(--muted); }

.stats {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; }

.stat__num, .stat__suffix {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat__num { display: inline; }
.stat__suffix { display: inline; }

.stat { flex-direction: row; flex-wrap: wrap; align-items: baseline; column-gap: 2px; }

.stat__label {
  width: 100%;
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 4px;
}

/* ---------- Tecnologias ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  max-width: 900px;
  margin: 0 auto;
}

.tech {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding: var(--space-4) var(--space-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
  cursor: default;
}

.tech:hover, .tech:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(6, 182, 212, 0.45);
}

.tech svg {
  width: 44px; height: 44px;
  color: var(--muted);
  transition: color var(--transition);
}

.tech:hover svg, .tech:focus-visible svg { color: var(--accent-2); }

.tech span {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 600;
}

.tech-note {
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 60ch;
  margin: var(--space-5) auto 0;
}

/* ---------- Processo ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  counter-reset: step;
}

.step {
  position: relative;
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}

.step:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
}

.step__num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.9;
  margin-bottom: var(--space-2);
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.step p {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- CTA Banner ---------- */
.cta-banner {
  padding: var(--space-6) 0;
  background: var(--grad);
}

.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cta-banner h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: #fff;
  margin-bottom: 0.4rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  font-size: 1.02rem;
}

/* ---------- Contato ---------- */
.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-6);
  align-items: start;
}

.contact__info .section__title { text-align: left; }

.contact__info > p { color: var(--muted); }

.contact__channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.contact__channels li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.contact__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 12px;
  flex-shrink: 0;
}

.contact__icon svg {
  width: 22px; height: 22px;
  color: var(--accent);
}

.contact__channels strong {
  display: block;
  font-size: 0.92rem;
}

.contact__channels a, .contact__channels div > span {
  font-size: 0.92rem;
  color: var(--muted);
}

.contact__channels a:hover { color: var(--accent-2); }

/* Formulário */
.contact__form {
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.form-group { margin-bottom: var(--space-2); }

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.form-group label span { color: var(--error); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group select { cursor: pointer; }

.form-group select option { background: var(--surface-2); color: var(--text); }

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(159, 176, 199, 0.55); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea { border-color: var(--error); }

.form-error {
  display: block;
  font-size: 0.8rem;
  color: var(--error);
  margin-top: 0.35rem;
  min-height: 1em;
}

.form-feedback {
  margin: var(--space-2) 0 0;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.form-feedback.is-success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ADE80;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: var(--space-6) 0 var(--space-3);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.footer__brand p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: var(--space-2);
  max-width: 32ch;
}

.footer__col h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer__col a {
  font-size: 0.9rem;
  color: var(--muted);
}

.footer__col a:hover { color: var(--accent-2); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  flex-wrap: wrap;
}

.footer__bottom p {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

.footer__top-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer__top-link:hover { color: var(--accent-2); }

.footer__top-link svg { width: 15px; height: 15px; }

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */

@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: var(--space-6); }

  .hero { min-height: auto; }

  .hero__visual { max-width: 560px; margin: 0 auto; width: 100%; }

  .cards-grid { grid-template-columns: repeat(2, 1fr); }

  .features-grid { grid-template-columns: repeat(2, 1fr); }

  .steps { grid-template-columns: repeat(2, 1fr); }

  .about { grid-template-columns: 1fr; }

  .about__visual { max-width: 520px; margin: 0 auto; order: 2; }

  .contact { grid-template-columns: 1fr; }

  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 68px; }

  .section { padding: var(--space-6) 0; }

  /* Navegação mobile */
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(7, 11, 20, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: var(--space-2) var(--space-3) var(--space-3);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition),
                visibility var(--transition);
  }

  .nav.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .nav__list { flex-direction: column; align-items: stretch; gap: 0.3rem; }

  .nav__link {
    display: block;
    padding: 0.85rem 1rem;
    font-size: 1rem;
  }

  .header__cta { display: none; }

  .nav-toggle { display: flex; margin-left: auto; }

  .hero__card--uptime { top: -18px; right: 0; }
  .hero__card--support { bottom: -14px; left: 0; }

  .cards-grid { grid-template-columns: 1fr; }

  .features-grid { grid-template-columns: 1fr; }

  .steps { grid-template-columns: 1fr; }

  .tech-grid { grid-template-columns: repeat(2, 1fr); }

  .form-row { grid-template-columns: 1fr; }

  .stats { gap: var(--space-4); }

  .cta-banner__inner { flex-direction: column; text-align: center; }

  .footer__top { grid-template-columns: 1fr; gap: var(--space-4); }

  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 420px) {
  .hero__title { font-size: 2.1rem; }

  .tech-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }

  .hero__actions .btn { width: 100%; }
}