/* ============================================================
   HDL Consultoria Empresarial LTDA — style.css
   IBM Carbon inspired · Navy / Gold theme
   ============================================================ */

/* ===== DESIGN TOKENS ===== */
:root {
  --navy: #1A3A5C;
  --navy-dark: #0F2640;
  --navy-light: #243F6B;
  --gold: #C8860A;
  --gold-light: #E8A020;
  --gold-pale: #FEF3E2;
  --teal: #0F6E56;
  --teal-light: #1D9E75;
  --white: #FFFFFF;
  --off-white: #F4F3F0;
  --gray-10: #F4F4F4;
  --gray-20: #E0E0E0;
  --gray-40: #A8A8A8;
  --gray-60: #6F6F6F;
  --gray-80: #393939;
  --gray-100: #161616;
  --ibm-blue: #0F62FE;
  --danger: #DA1E28;
  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-serif: 'IBM Plex Serif', serif;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 64px;
  --spacing-2xl: 96px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--gray-100);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* ===== SITE HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: var(--navy-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.logo-mark {
  width: 28px;
  height: 28px;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--navy-dark);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.header-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  padding: 0 14px;
  height: 48px;
  display: flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.header-nav a:hover {
  color: var(--white);
  border-bottom-color: var(--gold);
  background: rgba(255, 255, 255, 0.04);
}

.btn-wa {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--teal);
  color: var(--white) !important;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  padding: 0 16px !important;
  height: 32px !important;
  margin-left: 12px;
  border-bottom: none !important;
  transition: background 0.15s !important;
}

.btn-wa:hover {
  background: var(--teal-light) !important;
  border-bottom: none !important;
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--navy-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 48px;
}

/* Grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200, 134, 10, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 134, 10, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* Glow accent */
.hero::after {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(200, 134, 10, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-title strong {
  font-weight: 600;
  color: var(--gold-light);
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 480px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: var(--navy-dark);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 12px 24px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  padding: 12px 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-decoration: none;
}

.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

/* ===== HERO STATS ===== */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-cell {
  background: var(--navy-dark);
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transition: background 0.15s;
}

.stat-cell:hover {
  background: var(--navy-light);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.02em;
}

/* ===== SECTION BASICS ===== */
section {
  padding: var(--spacing-2xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 300;
  color: var(--gray-100);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-md);
}

.section-title strong {
  font-weight: 600;
}

.section-desc {
  font-size: 1rem;
  color: var(--gray-60);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

/* ===== SERVICES SECTION ===== */
#servicos {
  background: var(--gray-10);
}

.services-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--gray-20);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  scrollbar-width: none;
}

.services-tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gray-60);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 20px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--gray-100);
}

.tab-btn.active {
  color: var(--navy-dark);
  font-weight: 600;
  border-bottom-color: var(--gold);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

/* ===== SERVICE CARD ===== */
.service-card {
  background: var(--white);
  border: 1px solid var(--gray-20);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  cursor: default;
}

.service-card:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  transform: translateY(-2px);
}

.service-card:hover .service-icon svg {
  stroke: var(--gold-light);
}

.service-card:hover .service-title {
  color: var(--white);
}

.service-card:hover .service-desc {
  color: rgba(255, 255, 255, 0.65);
}

.service-card:hover .service-tags span {
  background: rgba(200, 134, 10, 0.2);
  color: var(--gold-light);
}

.service-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--navy);
  fill: none;
  stroke-width: 1.5;
  transition: stroke 0.2s;
}

.service-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-100);
  line-height: 1.3;
  transition: color 0.2s;
}

.service-desc {
  font-size: 0.85rem;
  color: var(--gray-60);
  line-height: 1.6;
  flex: 1;
  transition: color 0.2s;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.service-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: var(--gray-10);
  color: var(--gray-60);
  padding: 2px 8px;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}

/* ===== SOBRE SECTION ===== */
#sobre {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.about-left .section-desc {
  margin-bottom: var(--spacing-lg);
}

.about-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-list-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.about-list-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
  font-weight: 600;
  width: 24px;
  flex-shrink: 0;
  padding-top: 2px;
}

.about-list-text {
  font-size: 0.9rem;
  color: var(--gray-60);
  line-height: 1.6;
}

.about-list-text strong {
  color: var(--gray-100);
  font-weight: 600;
}

.about-right {
  background: var(--navy-dark);
  padding: var(--spacing-xl) var(--spacing-lg);
}

.about-right .section-label {
  color: var(--gold);
}

.about-right .section-title {
  color: var(--white);
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin-top: var(--spacing-lg);
}

.cert-item {
  background: var(--navy-dark);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transition: background 0.15s;
}

.cert-item:hover {
  background: var(--navy-light);
}

.cert-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold-light);
}

.cert-desc {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== MUNICÍPIOS SECTION ===== */
#municipios {
  background: var(--gray-10);
}

.mun-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.mun-card {
  background: var(--white);
  border: 1px solid var(--gray-20);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transition: border-color 0.15s, transform 0.15s;
}

.mun-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.mun-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
}

.mun-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-100);
}

.mun-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: var(--gold-pale);
  color: var(--gold);
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 600;
}

.mun-lei {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray-60);
}

.mun-organs {
  font-size: 0.78rem;
  color: var(--gray-60);
}

/* ===== TECNOLOGIA SECTION ===== */
#tecnologia {
  background: var(--navy-dark);
}

#tecnologia .section-label {
  color: var(--gold);
}

#tecnologia .section-title {
  color: var(--white);
}

#tecnologia .section-desc {
  color: rgba(255, 255, 255, 0.6);
}

.tech-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: var(--spacing-lg);
}

.tech-item {
  background: var(--navy-dark);
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  text-align: center;
  transition: background 0.15s;
}

.tech-item:hover {
  background: var(--navy-light);
}

.tech-icon {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--gold);
}

.tech-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
}

.tech-sub {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--font-mono);
}

/* ===== NORMAS SECTION ===== */
.normas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.norma-badge {
  background: var(--gray-10);
  border: 1px solid var(--gray-20);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray-60);
  text-align: center;
  transition: border-color 0.15s, color 0.15s;
}

.norma-badge:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ===== DISCLAIMER SECTION ===== */
#disclaimer {
  background: var(--gray-100);
  border-top: 3px solid var(--danger);
}

#disclaimer .section-label {
  color: var(--danger);
}

#disclaimer .section-title {
  color: var(--white);
}

.disclaimer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.disclaimer-item {
  border-left: 2px solid var(--danger);
  padding-left: var(--spacing-md);
}

.disclaimer-item-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--danger);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.disclaimer-item-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.disclaimer-item-text {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
}

.disclaimer-full {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--spacing-lg);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.8;
  font-family: var(--font-mono);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--navy-dark);
  padding: var(--spacing-xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

.footer-brand .logo-group {
  margin-bottom: var(--spacing-md);
}

.footer-brand .logo-text {
  font-size: 0.95rem;
}

.footer-brand p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-mono);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-col ul li a {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.15s;
}

.footer-col ul li a:hover {
  color: var(--gold-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--spacing-lg) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
  font-family: var(--font-mono);
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.footer-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.35);
  padding: 3px 8px;
  border-radius: 2px;
}

.footer-dev {
  width: 100%;
  text-align: center;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-sm);
  font-family: var(--font-mono);
}

/* ===== SCROLL REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== SECTION DIVIDER ===== */
.section-divider {
  width: 40px;
  height: 2px;
  background: var(--gold);
  margin-bottom: var(--spacing-lg);
}

/* ===== UTILITY ===== */
.text-gold { color: var(--gold); }
.text-white { color: var(--white); }
.text-muted { color: var(--gray-60); }
.mono { font-family: var(--font-mono); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .hero-right {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
  .site-header {
    padding: 0 var(--spacing-md);
  }

  .header-nav {
    display: none;
  }

  .hero-inner {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .hero-stats {
    display: none;
  }

  .hero-right {
    display: none;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  section {
    padding: var(--spacing-xl) 0;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .tab-btn {
    font-size: 0.78rem;
    padding: 10px 14px;
  }

  .tab-panel.active {
    grid-template-columns: 1fr;
  }

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

  .tech-row {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .services-tabs {
    flex-wrap: nowrap;
  }
}