/* =============================================================================
   Desentupimentos Porto 24 — Design System
   Mobile-first · WCAG 2.2 AA · PT-PT
   ========================================================================== */

/* ----- Design tokens ----- */
:root {
  /* Cor — verificado para contraste AA */
  --primary:        #0A4D8C;   /* azul confiança; branco por cima ~6.9:1 */
  --primary-dark:   #063763;
  --primary-light:  #E8F1FA;
  --accent:         #C2410C;   /* laranja CTA; branco por cima ~4.7:1 (AA) */
  --accent-hover:   #9A330A;
  --accent-bright:  #F97316;   /* só decorativo/ícones com texto */
  --wa:             #1FA855;   /* WhatsApp */
  --wa-hover:       #15803D;

  --ink-900: #0F1B2A;          /* texto principal */
  --ink-700: #33414F;          /* texto secundário */
  --ink-500: #5C6B7A;          /* texto suave */
  --line:    #D9E0E7;          /* divisores */
  --bg:      #FFFFFF;
  --bg-soft: #F4F7FA;

  --success: #0F7A4D;
  --error:   #C0341D;
  --warning: #B45309;

  /* Tipografia */
  --font-display: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --text-xs: 0.75rem; --text-sm: 0.875rem; --text-base: 1rem; --text-lg: 1.25rem;
  --text-xl: 1.563rem; --text-2xl: 1.953rem; --text-3xl: 2.441rem; --text-4xl: 3.052rem;

  /* Espaçamento (base 4px) */
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px; --space-5:24px;
  --space-6:32px; --space-8:48px; --space-10:64px; --space-12:80px; --space-16:128px;

  --container: 1200px;
  --container-content: 760px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(15,27,42,.08), 0 1px 2px rgba(15,27,42,.06);
  --shadow:    0 6px 20px rgba(15,27,42,.10);
}

/* ----- Reset ----- */
*,*::before,*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font-body); color: var(--ink-900);
  background: var(--bg); font-size: var(--text-base); line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img,svg { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 2px; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.15; color: var(--ink-900); margin: 0 0 var(--space-4); letter-spacing: -0.01em; }
h1 { font-size: var(--text-3xl); font-weight: 800; }
h2 { font-size: var(--text-2xl); font-weight: 800; }
h3 { font-size: var(--text-lg); font-weight: 700; }
p  { margin: 0 0 var(--space-4); }
ul { margin: 0 0 var(--space-4); padding-left: 1.25rem; }

/* ----- Acessibilidade ----- */
:focus-visible { outline: 3px solid var(--accent-bright); outline-offset: 2px; border-radius: 4px; }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink-900); color: #fff; padding: var(--space-3) var(--space-4); border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }
.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;
}

/* ----- Layout ----- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-4); }
.section { padding-block: var(--space-10); }
.section--soft { background: var(--bg-soft); }
.section__head { max-width: var(--container-content); margin-bottom: var(--space-6); }
.section__head.center { margin-inline: auto; text-align: center; }
.eyebrow { font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm); letter-spacing: .06em; text-transform: uppercase; color: var(--primary); margin: 0 0 var(--space-2); }
.lead { font-size: var(--text-lg); color: var(--ink-700); }

/* ----- Botões ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-display); font-weight: 700; font-size: 1.0625rem;
  padding: 14px 26px; min-height: 48px; border-radius: var(--radius); border: 2px solid transparent;
  cursor: pointer; text-decoration: none; transition: background-color .15s, transform .05s; text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn--call { background: var(--accent); color: #fff; }
.btn--call:hover { background: var(--accent-hover); }
.btn--wa { background: var(--wa); color: #fff; }
.btn--wa:hover { background: var(--wa-hover); }
.btn--outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn--outline:hover { background: var(--primary-light); }
.btn--ghost { background:#fff; color: var(--primary); border-color: var(--line); }
.btn--lg { font-size: 1.125rem; padding: 16px 30px; min-height: 54px; }
.btn--block { display: flex; width: 100%; }
.btn .ico { width: 20px; height: 20px; flex: none; }
/* Estado quando ainda não há número configurado */
.btn.is-pending { opacity: .9; }

/* ----- Barra de urgência (topo) ----- */
.topbar {
  background: var(--primary-dark); color: #fff; font-size: var(--text-sm);
  text-align: center; padding: var(--space-2) var(--space-4);
}
.topbar a { color: #fff; font-weight: 700; }
.topbar strong { color: #fff; }

/* ----- Header ----- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); font-family: var(--font-display); font-weight: 800; font-size: 1.125rem; color: var(--ink-900); text-decoration: none; }
.brand__mark { width: 34px; height: 34px; border-radius: 8px; background: var(--primary); color:#fff; display:grid; place-items:center; }
.brand b { color: var(--accent); }
.nav { display: none; }
.nav a { color: var(--ink-700); text-decoration: none; font-weight: 600; font-size: .975rem; padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); }
.nav a:hover { color: var(--primary); background: var(--primary-light); }
.header__cta { display: none; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: none; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content:""; display:block; width:20px; height:2px; background: var(--ink-900); position: relative; transition: .2s; }
.nav-toggle span::before { position:absolute; top:-6px; } .nav-toggle span::after { position:absolute; top:6px; }
.mobile-menu { display: none; border-top: 1px solid var(--line); background: #fff; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: var(--space-4); border-bottom: 1px solid var(--line); color: var(--ink-900); text-decoration: none; font-weight: 600; }

/* ----- Hero ----- */
.hero { background: linear-gradient(180deg, var(--primary-light), #fff); padding-block: var(--space-10) var(--space-8); }
.hero h1 { font-size: clamp(1.95rem, 6vw, var(--text-4xl)); }
.hero .lead { margin-bottom: var(--space-6); }
.hero__cta { display: flex; flex-direction: column; gap: var(--space-3); }
.hero__badges { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-6); color: var(--ink-700); font-weight: 600; font-size: var(--text-sm); }
.hero__badges span { display: inline-flex; align-items: center; gap: 6px; }
.hero__badges .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
/* Cartão de conversão do hero (visível só em desktop; em mobile usam-se os botões inline) */
.hero__card { display: none; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: var(--space-6); }
.hero__card-eyebrow { font-family: var(--font-display); font-weight: 700; color: var(--primary); margin: 0 0 var(--space-4); }
.hero__card .btn { margin-bottom: var(--space-3); }
.hero__card-list { list-style: none; padding: 0; margin: var(--space-4) 0 0; }
.hero__card-list li { padding: 10px 0 10px 28px; position: relative; color: var(--ink-700); border-top: 1px solid var(--line); font-size: .95rem; }
.hero__card-list li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 800; }

/* ----- Trust bar ----- */
.trustbar { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.trustbar .item { display: flex; gap: var(--space-3); align-items: flex-start; }
.trustbar .ico-wrap { flex:none; width: 40px; height: 40px; border-radius: 10px; background: var(--primary-light); color: var(--primary); display: grid; place-items: center; }
.trustbar h3 { font-size: var(--text-base); margin: 0 0 2px; }
.trustbar p { font-size: var(--text-sm); color: var(--ink-700); margin: 0; }

/* ----- Cards (serviços, problemas) ----- */
.grid { display: grid; gap: var(--space-5); }
.cards { grid-template-columns: 1fr; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-5);
  box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
}
.card .ico-wrap { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display:grid; place-items:center; margin-bottom: var(--space-4); }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--ink-700); font-size: .975rem; margin-bottom: var(--space-4); }
.card .card__link { margin-top: auto; font-family: var(--font-display); font-weight: 700; color: var(--primary); text-decoration: none; display:inline-flex; align-items:center; gap:6px; }
.card .card__link:hover { color: var(--accent); }
a.card { text-decoration: none; color: inherit; transition: box-shadow .15s, transform .05s, border-color .15s; }
a.card:hover { box-shadow: var(--shadow); border-color: var(--primary); transform: translateY(-2px); }

/* ----- Processo ----- */
.steps { grid-template-columns: 1fr; counter-reset: step; }
.step { display: flex; gap: var(--space-4); align-items: flex-start; }
.step__num { flex:none; counter-increment: step; width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color:#fff; font-family: var(--font-display); font-weight: 800; display:grid; place-items:center; }
.step__num::before { content: counter(step); }
.step h3 { margin: 4px 0 4px; font-size: var(--text-base); }
.step p { margin: 0; color: var(--ink-700); font-size: .95rem; }

/* ----- Zonas ----- */
.zonas { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.zona { display:flex; align-items:center; gap: var(--space-2); padding: var(--space-4); background:#fff; border:1px solid var(--line); border-radius: var(--radius-sm); text-decoration:none; color: var(--ink-900); font-weight: 600; }
.zona:hover { border-color: var(--primary); color: var(--primary); }

/* ----- FAQ (details) ----- */
.faq { max-width: var(--container-content); }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: var(--space-3); background:#fff; }
.faq summary { cursor: pointer; padding: var(--space-4); font-family: var(--font-display); font-weight: 700; list-style: none; display:flex; justify-content: space-between; gap: var(--space-3); }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details > div { padding: 0 var(--space-4) var(--space-4); color: var(--ink-700); }

/* ----- CTA band ----- */
.ctaband { background: var(--primary); color: #fff; border-radius: var(--radius); padding: var(--space-8) var(--space-5); text-align: center; }
.ctaband h2 { color: #fff; }
.ctaband p { color: #DCE8F4; max-width: 560px; margin-inline: auto; }
.ctaband .hero__cta { max-width: 420px; margin-inline: auto; margin-top: var(--space-5); }

/* ----- Footer ----- */
.footer { background: var(--ink-900); color: #C7D2DC; padding-block: var(--space-10) var(--space-8); font-size: .95rem; }
.footer a { color: #C7D2DC; text-decoration: none; }
.footer a:hover { color: #fff; }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.footer h4 { color: #fff; font-size: var(--text-base); margin-bottom: var(--space-3); }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: var(--space-2); }
.footer__brand .brand { color:#fff; }
.footer__brand .brand__mark { background:#fff; color: var(--primary); }
.footer__bottom { border-top: 1px solid #25323F; margin-top: var(--space-8); padding-top: var(--space-5); display:flex; flex-direction:column; gap: var(--space-3); font-size: var(--text-sm); color:#90A0AD; }
.footer__note { font-size: var(--text-sm); color: #90A0AD; }

/* ----- Barra de chamada fixa (mobile) ----- */
.callbar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); box-shadow: 0 -4px 16px rgba(15,27,42,.12); }
.callbar a { display:flex; align-items:center; justify-content:center; gap:8px; padding: 14px; font-family: var(--font-display); font-weight: 800; color:#fff; text-decoration:none; min-height: 52px; }
.callbar .c-call { background: var(--accent); }
.callbar .c-wa { background: var(--wa); }
.callbar .ico { width: 20px; height: 20px; }
.callbar.is-single { grid-template-columns: 1fr; }  /* quando não há WhatsApp */
body { padding-bottom: 64px; } /* espaço p/ callbar */

/* ----- Tabela de preços ----- */
.ptable { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.ptable th, .ptable td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.ptable th { background: var(--bg-soft); font-family: var(--font-display); font-size: .95rem; }
.ptable tr:last-child td { border-bottom: 0; }
.ptable td:last-child, .ptable th:last-child { text-align: right; white-space: nowrap; font-weight: 700; }
.ptable .muted { color: var(--ink-500); font-weight: 400; }

/* ----- Contacto ----- */
.contact-grid { display: grid; gap: var(--space-5); grid-template-columns: 1fr; }
@media (min-width: 760px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-card { background:#fff; border:1px solid var(--line); border-radius: var(--radius); padding: var(--space-6); box-shadow: var(--shadow-sm); }

/* ----- Conteúdo legal ----- */
.prose { max-width: var(--container-content); }
.prose h2 { margin-top: var(--space-8); }
.prose h3 { margin-top: var(--space-5); }
.prose .placeholder { background: #FFF4E5; border: 1px dashed var(--warning); color: #7A4A00; padding: 2px 6px; border-radius: 4px; font-size: .9em; }

/* ----- Avisos / notas ----- */
.note { border-left: 4px solid var(--primary); background: var(--primary-light); padding: var(--space-4); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-size: .95rem; }

/* ----- Breadcrumbs ----- */
.crumbs { font-size: var(--text-sm); color: var(--ink-500); padding-block: var(--space-3); }
.crumbs a { color: var(--ink-700); text-decoration: none; }
.crumbs a:hover { color: var(--primary); }

/* =========================== Tablet / Desktop =========================== */
@media (min-width: 640px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .hero__cta { flex-direction: row; }
  .hero__cta .btn { flex: 1; }
  .zonas { grid-template-columns: repeat(3, 1fr); }
  .trustbar { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 900px) {
  :root { --text-3xl: 2.8rem; }
  .nav { display: flex; align-items: center; gap: var(--space-1); }
  .header__cta { display: inline-flex; }
  .nav-toggle, .mobile-menu { display: none !important; }
  .callbar { display: none; }
  body { padding-bottom: 0; }
  .section { padding-block: var(--space-12); }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .cards--4 { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-8); align-items: center; }
  .hero .hero__cta { display: none; }   /* em desktop, os CTAs vivem no cartão */
  .hero__card { display: block; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .footer__bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .hero__cta { max-width: 460px; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto; transition: none !important; } }