/* ==========================================================================
   ALMIR LK · Serviços Profissionais de Engenharia Web & IA
   Design Tokens baseados no Portfólio v2 (Clean, Elegante e Acessível)
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-surface: #f7f6f3;
  --bg-card: #ffffff;
  --bg-hover: #f1efea;
  --border: #e4e1da;
  --border-subtle: #eeece7;
  --border-focus: #0f766e;
  --text-main: #14161a;
  --text-muted: #55606e;
  --text-dim: #626c79;
  --accent: #0f766e;
  --accent-gold: #0f766e;
  --accent-soft: rgba(15, 118, 110, 0.08);
  --font-serif: "Newsreader", "Playfair Display", Georgia, serif;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --container-max: 1140px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Acessibilidade */
.skip-link {
  position: absolute;
  top: -60px;
  left: 1.5rem;
  background: var(--text-main);
  color: var(--bg);
  font-weight: 700;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1.5rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.2);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navegação */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.1rem 0;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-mark {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.brand-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  display: inline-flex;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.lang-switch a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s ease;
}

.lang-switch a[aria-current="page"] {
  color: var(--text-main);
  font-weight: 700;
  background: var(--bg-surface);
}

.btn-nav-cta {
  background: var(--text-main);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.84rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-nav-cta:hover {
  background: var(--accent);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 0 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  display: block;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  color: var(--text-main);
  max-width: 820px;
  margin-bottom: 1.5rem;
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 2.2rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.15s ease;
}

.btn-primary:hover {
  background: #0b5d56;
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--text-dim);
  background: var(--bg-surface);
}

/* Trust Bar / Garantias */
.trust-bar {
  padding: 1.8rem 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.trust-icon {
  font-size: 1.2rem;
  line-height: 1;
}

.trust-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.trust-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Seções Gerais */
.section {
  padding: 5rem 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 3rem;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Grid de Serviços */
.services-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.service-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  background: var(--bg-card);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.service-card:hover {
  border-color: var(--border-focus);
  box-shadow: 0 10px 30px -15px rgba(15, 118, 110, 0.15);
}

.service-card-header {
  margin-bottom: 1rem;
}

.service-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 0.8rem;
}

.service-name {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.3;
}

.service-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  line-height: 1.6;
}

.service-deliverables {
  list-style: none;
  margin-bottom: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.service-deliverables li {
  font-size: 0.88rem;
  color: var(--text-main);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.service-deliverables li span.bullet {
  color: var(--accent);
  font-weight: 700;
}

.service-side {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.8rem;
}

.case-proof {
  margin-bottom: 1.5rem;
}

.case-proof-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: block;
}

.case-proof-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.case-proof-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.8rem;
}

.case-proof-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.case-link-pill {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.15s ease;
}

.case-link-pill:hover {
  text-decoration: underline;
}

.service-card-action {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.pricing-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-style: italic;
}

.btn-whatsapp-service {
  background: #25d366;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background 0.15s ease;
}

.btn-whatsapp-service:hover {
  background: #1eb857;
}

/* Seção de Processo de Trabalho */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.process-step {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  background: var(--bg-card);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  background: var(--bg-card);
}

.faq-q {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.faq-a {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Contato */
.contact-section {
  padding: 5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.contact-wrap {
  max-width: 680px;
  margin: 0 auto;
}

.contact-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.contact-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.contact-lang {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 2rem;
}

.contact-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

/* Rodapé */
.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.84rem;
  color: var(--text-dim);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

/* Responsividade */
@media (max-width: 900px) {
  .service-card {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}