/* ===========================================================
   Borges Eletrônica — folha de estilos única
   Paleta e tipografia conforme especificação §10.
   Pilha de fontes do sistema — sem requisições externas.
   =========================================================== */

:root {
  --color-navy: #0B1F33;
  --color-blue: #1769E0;
  --color-blue-light: #EAF2FF;
  --color-amber: #F5A623;
  --color-graphite: #1F2933;
  --color-gray: #667085;
  --color-bg: #F8FAFC;
  --color-white: #FFFFFF;
  --color-success: #147D52;

  --color-border: #DDE3EA;
  --color-focus: #F5A623;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-w: 72rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --shadow-sm: 0 1px 2px rgba(11, 31, 51, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 31, 51, 0.12);

  --header-h: 4.25rem;
  --mobile-bar-h: 3.75rem;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@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;
    scroll-behavior: auto !important;
  }
}
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-graphite);
  background: var(--color-bg);
  line-height: 1.55;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
svg { display: block; }
a { color: var(--color-blue); text-decoration-thickness: 2px; }
a:not([class]) { text-underline-offset: 2px; }
h1, h2, h3, h4 { color: var(--color-navy); line-height: 1.2; margin: 0 0 var(--space-3); }
h1 { font-size: clamp(1.9rem, 1.5rem + 2vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 var(--space-4); color: var(--color-graphite); }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }
button { font-family: inherit; }

/* ---------- Focus ---------- */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  z-index: 1000;
  border-radius: var(--radius-sm);
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-6); }
.section--alt { background: var(--color-white); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section-head { max-width: 44rem; margin-bottom: var(--space-6); }
.section-head p { color: var(--color-gray); }
.text-center { text-align: center; margin-inline: auto; }
.eyebrow {
  display: inline-block;
  color: var(--color-blue);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  line-height: 1.2;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-success); color: var(--color-white); }
.btn-primary:hover { background: #106941; }
.btn-secondary { background: var(--color-navy); color: var(--color-white); }
.btn-secondary:hover { background: #132b45; }
.btn-outline { background: transparent; color: var(--color-navy); border-color: var(--color-navy); }
.btn-outline:hover { background: var(--color-blue-light); }
.btn-block { width: 100%; }
.btn[aria-disabled="true"] {
  background: var(--color-border);
  color: var(--color-gray);
  cursor: not-allowed;
}
.btn[aria-disabled="true"]:hover { background: var(--color-border); }

/* ---------- Config notice banner ---------- */
.config-banner {
  background: var(--color-amber);
  color: var(--color-navy);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  padding: var(--space-2) var(--space-4);
}
.config-banner a { color: var(--color-navy); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: var(--header-h);
  transition: height 0.15s ease;
}
.site-header.is-compact .container { height: 3.5rem; }
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  font-weight: 800;
  color: var(--color-navy);
  font-size: 1.05rem;
  white-space: nowrap;
}
.brand svg { width: 2.1rem; height: 2.1rem; flex-shrink: 0; }

.main-nav { display: none; }
.main-nav ul {
  display: flex;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--color-graphite);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: var(--space-2) 0;
}
.main-nav a:hover { color: var(--color-blue); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.header-phone {
  display: none;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-navy);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.menu-toggle svg { width: 22px; height: 22px; }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-5);
}
.mobile-menu.is-open { display: block; }
.mobile-menu-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}
.mobile-menu-close {
  width: 44px; height: 44px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  cursor: pointer;
}
.mobile-menu ul { list-style: none; padding: 0; margin: 0 0 var(--space-6); }
.mobile-menu li + li { margin-top: var(--space-2); }
.mobile-menu a {
  display: block;
  color: var(--color-white);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 700;
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

@media (min-width: 900px) {
  .main-nav { display: block; }
  .header-phone { display: inline-flex; }
  .menu-toggle { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--color-blue-light) 0%, var(--color-bg) 100%);
  padding-block: var(--space-8);
}
.hero .container {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}
@media (min-width: 900px) {
  .hero .container { grid-template-columns: 1.1fr 0.9fr; }
}
.hero-copy p.lead { font-size: 1.1rem; color: var(--color-graphite); }
.hero-copy p.complement { color: var(--color-gray); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block: var(--space-5); }
.hero-media {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-md);
}
.hero-media figcaption {
  margin-top: var(--space-3);
  font-size: 0.85rem;
  color: var(--color-gray);
}

.trust-signals {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-navy);
  font-weight: 600;
}
.trust-signals li { display: flex; align-items: center; gap: var(--space-2); }
.trust-signals li::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}
.trust-signals .is-pending::before { background: var(--color-amber); }
.trust-signals .is-pending { color: var(--color-gray); font-weight: 500; font-style: italic; }

/* ---------- Trust bar ---------- */
.trust-bar-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .trust-bar-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
}
.trust-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.trust-item .icon { color: var(--color-blue); margin-bottom: var(--space-3); }
.trust-item h3 { font-size: 1.05rem; margin-bottom: var(--space-2); }
.trust-item p { color: var(--color-gray); margin: 0; font-size: 0.95rem; }

/* ---------- Cards grid (services / problems / differentials) ---------- */
.card-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid--2 { grid-template-columns: repeat(2, 1fr); }
}
.service-card, .differential-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-card .icon, .differential-card .icon { color: var(--color-blue); margin-bottom: var(--space-3); }
.service-card h3 { margin-bottom: var(--space-2); }
.service-card p { color: var(--color-gray); flex-grow: 1; }
.service-card .btn { align-self: flex-start; margin-top: var(--space-3); }
.tag-list { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-3) 0 0; padding: 0; list-style: none; }
.tag-list li {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-navy);
  background: var(--color-blue-light);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}
.tag-list.is-unconfirmed li { background: #FDF1DC; color: #7A5210; }

.problem-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .problem-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .problem-grid { grid-template-columns: repeat(3, 1fr); } }
.problem-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}
.problem-card p { margin: 0; font-weight: 600; color: var(--color-graphite); }
.problem-note {
  background: var(--color-blue-light);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  color: var(--color-navy);
  font-size: 0.95rem;
  margin-top: var(--space-5);
}

/* ---------- Process steps ---------- */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 780px) { .process-list { grid-template-columns: repeat(3, 1fr); } }
.process-step {
  counter-increment: step;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  position: relative;
  padding-top: var(--space-7);
}
.process-step::before {
  content: counter(step);
  position: absolute;
  top: var(--space-4);
  left: var(--space-5);
  width: 2rem; height: 2rem;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
}
.process-step h3 { font-size: 1.05rem; }
.process-step p { color: var(--color-gray); margin: 0; font-size: 0.95rem; }

/* ---------- Service area ---------- */
.area-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) { .area-grid { grid-template-columns: repeat(2, 1fr); } }
.area-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.area-card dl { margin: var(--space-4) 0 0; }
.area-card dt { font-weight: 700; color: var(--color-navy); margin-top: var(--space-3); }
.area-card dd { margin: 0.15rem 0 0; color: var(--color-gray); }
.area-card dd.pending { font-style: italic; }

/* ---------- About technician ---------- */
.about-grid {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}
@media (min-width: 860px) { .about-grid { grid-template-columns: 0.9fr 1.1fr; } }
.about-media { display: grid; gap: var(--space-4); }
@media (min-width: 500px) and (max-width: 859px) { .about-media { grid-template-columns: 1fr 1fr; } }
.about-media figure {
  margin: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.about-facts { list-style: none; margin: var(--space-5) 0 0; padding: 0; display: grid; gap: var(--space-2); }
.about-facts li { color: var(--color-gray); }
.about-facts strong { color: var(--color-navy); }

/* ---------- Testimonials / social proof ---------- */
.social-proof-notice {
  background: var(--color-white);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: var(--color-gray);
}
.social-proof-notice strong { color: var(--color-navy); }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--color-border); }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: var(--space-4) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-navy);
  cursor: pointer;
}
.faq-question .chevron {
  flex-shrink: 0;
  width: 20px; height: 20px;
  transition: transform 0.15s ease;
}
.faq-question[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.faq-answer {
  padding: 0 0 var(--space-4);
  color: var(--color-gray);
}
.faq-answer[hidden] { display: none; }

/* ---------- Final CTA ---------- */
.final-cta {
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  text-align: center;
}
.final-cta h2 { color: var(--color-white); }
.final-cta p { color: rgba(255,255,255,0.8); max-width: 40rem; margin-inline: auto; }
.final-cta .hero-cta { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.85);
  padding-block: var(--space-7);
  margin-bottom: var(--mobile-bar-h);
}
.footer-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
.footer-brand { display: flex; align-items: center; gap: var(--space-2); color: var(--color-white); font-weight: 800; margin-bottom: var(--space-3); text-decoration: none; }
.footer-brand svg { width: 2rem; height: 2rem; }
.site-footer h3 { color: var(--color-white); font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-3); }
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}
.footer-bottom a { color: rgba(255,255,255,0.75); }

@media (min-width: 900px) {
  .site-footer { margin-bottom: 0; }
}

/* ---------- Mobile contact bar ---------- */
.mobile-contact-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 150;
  display: flex;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(11,31,51,0.12);
  padding: var(--space-2) var(--space-3);
  padding-bottom: max(var(--space-2), env(safe-area-inset-bottom));
  gap: var(--space-2);
}
.mobile-contact-bar .btn { flex: 1; }
@media (min-width: 900px) { .mobile-contact-bar { display: none; } }

/* ---------- Desktop floating WhatsApp ---------- */
.floating-whatsapp {
  display: none;
}
@media (min-width: 900px) {
  .floating-whatsapp {
    display: inline-flex;
    position: fixed;
    right: var(--space-6);
    bottom: var(--space-6);
    z-index: 150;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: var(--color-success);
    color: var(--color-white);
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    text-decoration: none;
  }
  .floating-whatsapp svg { width: 1.6rem; height: 1.6rem; }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: var(--color-navy);
  color: var(--color-white);
  padding-block: var(--space-7);
}
.page-hero h1 { color: var(--color-white); }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 42rem; }
.breadcrumbs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  margin: 0 0 var(--space-4);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}
.breadcrumbs a { color: rgba(255,255,255,0.85); }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: var(--space-2); color: rgba(255,255,255,0.4); }

/* ---------- Content prose (about, privacy) ---------- */
.prose { max-width: 42rem; }
.prose h2 { margin-top: var(--space-7); }
.prose ul { color: var(--color-graphite); }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-4); }
.contact-list li { display: flex; gap: var(--space-3); align-items: flex-start; }
.contact-list .icon { color: var(--color-blue); flex-shrink: 0; margin-top: 0.15rem; }
.contact-list .label { display: block; font-weight: 700; color: var(--color-navy); }
.contact-list .value { color: var(--color-gray); }
.map-placeholder {
  background: var(--color-blue-light);
  border: 1px dashed var(--color-blue);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  color: var(--color-navy);
}

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: var(--space-8);
}
.error-page .container { max-width: 34rem; }
.error-code { font-size: 4rem; font-weight: 800; color: var(--color-blue); margin: 0; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.text-gray { color: var(--color-gray); }
.no-js .js-only { display: none !important; }