/* ============================================================
   ErgoEng Consultoria — Stylesheet
   Organização:
     1. Custom Properties (design tokens)
     2. Reset & Base
     3. Acessibilidade
     4. Tipografia
     5. Layout Utilitários
     6. Animações & Keyframes
     7. Navbar
     8. Hero
     9. CTA Button
    10. Intro / About
    11. Services
    12. Planejamento (MVV)
    13. Footer
    14. WhatsApp Float
    15. Responsivo
    16. Print
   ============================================================ */

/* ============================================================
   1. CUSTOM PROPERTIES
   ============================================================ */

:root {
  /* Cores principais */
  --color-primary:       #227d93;
  --color-primary-dark:  #1a6172;
  --color-primary-light: #e0f2fe;
  --color-secondary:     #1e3a5f;
  --color-accent:        #0ea5e9;
  --color-whatsapp:      #25D366;
  --color-whatsapp-dark: #1da851;
  --color-success:       #22c55e;
  --color-danger:        #b91c1c;
  --color-danger-bg:     #fee2e2;
  --color-danger-border: #fca5a5;

  /* Neutros */
  --color-white:      #ffffff;
  --color-gray-50:    #f9fafb;
  --color-gray-100:   #f3f4f6;
  --color-gray-200:   #e5e7eb;
  --color-gray-400:   #9ca3af;
  --color-gray-500:   #6b7280;
  --color-gray-600:   #4b5563;
  --color-gray-800:   #1f2937;

  /* Espaçamento */
  --space-2:   0.5rem;
  --space-3:   0.75rem;
  --space-4:   1rem;
  --space-6:   1.5rem;
  --space-8:   2rem;
  --space-10:  2.5rem;
  --space-12:  3rem;
  --space-14:  3.5rem;
  --space-20:  5rem;

  /* Tipografia */
  --font-base:    'Lato', sans-serif;
  --text-sm:      0.875rem;
  --text-base:    1rem;
  --text-lg:      1.1rem;
  --text-xl:      1.25rem;
  --text-2xl:     1.5rem;
  --text-3xl:     1.875rem;
  --text-4xl:     2.25rem;
  --text-5xl:     3rem;
  --fw-normal:    400;
  --fw-bold:      700;
  --fw-black:     900;

  /* Bordas */
  --radius-sm:    0.5rem;
  --radius-md:    1rem;
  --radius-lg:    1.25rem;
  --radius-xl:    1.5rem;
  --radius-full:  9999px;

  /* Sombras */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg:  0 16px 40px rgba(34, 125, 147, 0.18);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.15);

  /* Transições */
  --transition-fast:   0.2s ease;
  --transition-base:   0.3s ease;
  --transition-slow:   0.6s ease;

  /* Durações de animação */
  --anim-in:    0.7s;
  --anim-float: 3s;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-size: var(--text-base);
  color: var(--color-gray-800);
  line-height: 1.6;
  background-color: var(--color-white);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

address {
  font-style: normal;
}

/* ============================================================
   3. ACESSIBILIDADE
   ============================================================ */

/* Skip link — visível apenas no foco */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: var(--fw-bold);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Focus ring para navegação por teclado */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Preferência por menos movimento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   4. TIPOGRAFIA UTILITÁRIA
   ============================================================ */

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

/* ============================================================
   5. LAYOUT UTILITÁRIOS
   ============================================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
  padding: 0 var(--space-4);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
}

.section-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  border-radius: 2px;
  margin: 0 auto var(--space-4);
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--color-primary);
  font-weight: var(--fw-bold);
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================================
   6. ANIMAÇÕES & KEYFRAMES
   ============================================================ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes pulseSlow {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.6; }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes borderGlow {
  0%, 100% { box-shadow: 0 4px 24px rgba(34, 125, 147, 0.1); }
  50%       { box-shadow: 0 4px 24px rgba(34, 125, 147, 0.28); }
}

/* Classes de animação */
.animate-fadeInUp    { animation: fadeInUp    var(--anim-in) ease both; }
.animate-fadeInLeft  { animation: fadeInLeft  var(--anim-in) ease both; }
.animate-fadeInRight { animation: fadeInRight var(--anim-in) ease both; }
.animate-fadeInDown  { animation: fadeInDown  0.6s ease both; }
.animate-float       { animation: float var(--anim-float) ease-in-out infinite; }
.animate-scaleIn     { animation: scaleIn 0.6s ease both; }

/* ============================================================
   7. NAVBAR
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: var(--color-white);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-12);
}

.nav-logo {
  height: 56px;
  width: auto;
}

/* Desktop links */
.nav-links {
  display: flex;
  gap: var(--space-2);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-weight: var(--fw-black);
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  line-height: 0;
}

.icon-close { display: none; }

/* Mobile menu */
.mobile-menu {
  background: var(--color-white);
  padding: var(--space-12);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.mobile-link {
  font-size: var(--text-lg);
}

/* ============================================================
   8. HERO
   ============================================================ */

.hero {
  background: url('../../assets/images/hero-bg.svg') top center no-repeat;
  background-size: cover;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 112px var(--space-6) var(--space-14);
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 896px;
  width: 100%;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--color-primary);
  text-transform: uppercase;
  font-weight: var(--fw-black);
  line-height: 1.2;
  margin-top: var(--space-6);
}

.hero-subtitle {
  margin-top: var(--space-2);
  font-size: clamp(1.2rem, 3vw, 1.875rem);
  color: var(--color-primary);
  text-transform: uppercase;
  font-weight: var(--fw-black);
}

.hero-lead {
  margin-top: var(--space-4);
  font-size: var(--text-xl);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}

.hero-desc {
  font-size: var(--text-base);
  font-weight: var(--fw-normal);
  color: var(--color-gray-500);
  max-width: 672px;
  margin-top: var(--space-3);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: var(--space-8);
}

/* Stat badges (hero) */
.stat-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(34,125,147,0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-4) 28px;
  box-shadow: 0 4px 20px rgba(34,125,147,0.12);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-badge:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(34,125,147,0.2);
}

.stat-number {
  font-size: var(--text-3xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  font-weight: var(--fw-bold);
  text-align: center;
}

/* Urgency badge */
.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: linear-gradient(135deg, #fef2f2, var(--color-danger-bg));
  border: 1.5px solid var(--color-danger-border);
  color: var(--color-danger);
  border-radius: var(--radius-full);
  padding: var(--space-2) 20px;
  font-size: var(--text-sm);
  font-weight: var(--fw-black);
  letter-spacing: 0.01em;
}

.urgency-dot {
  width: 10px;
  height: 10px;
  background: #ef4444;
  border-radius: 50%;
  animation: pulseSlow 1.5s ease-in-out infinite;
  flex-shrink: 0;
}

/* ============================================================
   9. CTA BUTTON
   ============================================================ */

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  font-weight: var(--fw-black);
  font-size: var(--text-base);
  padding: var(--space-4) 40px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  white-space: nowrap;
}

.cta-button:hover,
.cta-button:focus-visible {
  background-color: var(--color-whatsapp-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(37,211,102,0.35);
}

.cta-icon {
  width: 24px;
  height: 24px;
  fill: var(--color-white);
  flex-shrink: 0;
}

.cta-hint {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  margin-top: var(--space-2);
  text-align: center;
}

.cta-small {
  font-size: 0.8rem;
  color: var(--color-gray-400);
  font-weight: var(--fw-bold);
  margin-top: var(--space-2);
}

/* ============================================================
   10. INTRO / ABOUT
   ============================================================ */

.intro-section {
  background: var(--color-white);
  padding: var(--space-20) var(--space-4);
}

.intro-container {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.intro-grid {
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-12);
  align-items: center;
}

.intro-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.intro-img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  object-fit: cover;
}

.intro-stats {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
  margin-top: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-6) var(--space-4);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.stat-counter {
  font-size: var(--text-4xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
}

/* Prefixo "+" via CSS para não duplicar no aria-label */
.stat-counter::before {
  content: '+';
}

.stat-counter-fixed {
  font-size: var(--text-4xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
}

.stat-label-sm {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  font-weight: var(--fw-bold);
  text-align: center;
  margin-top: 4px;
}

.divider-v {
  width: 1px;
  background: var(--color-gray-200);
  align-self: stretch;
  margin: var(--space-2) 0;
}

.intro-right {
  display: flex;
  flex-direction: column;
  text-align: center;
  width: 100%;
}

.intro-title {
  font-size: var(--text-3xl);
  color: var(--color-primary);
  font-weight: var(--fw-black);
  line-height: 1.35;
}

.intro-text {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  font-weight: var(--fw-bold);
  margin-top: var(--space-4);
}

/* Check list */
.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--color-gray-800);
  background: #f0fdf4;
  border-left: 4px solid var(--color-success);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px var(--space-4);
}

/* ============================================================
   11. SERVICES
   ============================================================ */

.services-section {
  background: var(--color-gray-50);
  padding: var(--space-20) 0;
}

.services-grid {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-top-color var(--transition-base);
  border-top: 4px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-primary);
}

.service-img-wrap {
  overflow: hidden;
  height: 176px;
}

.service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-img {
  transform: scale(1.08);
}

.service-body {
  padding: var(--space-6);
}

.service-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-primary-light), #bae6fd);
  border-radius: var(--radius-md);
  font-size: 1.6rem;
  margin-bottom: var(--space-3);
}

.service-title {
  font-weight: var(--fw-black);
  font-size: var(--text-lg);
  color: var(--color-gray-800);
  margin-bottom: var(--space-4);
  line-height: 1.35;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  font-weight: var(--fw-bold);
}

.arrow {
  color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.services-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-14);
}

/* ============================================================
   12. PLANEJAMENTO (MVV)
   ============================================================ */

.planejamento {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 40%, #f8fafc 100%);
  padding: var(--space-20) var(--space-4);
}

.mvv-grid {
  max-width: 1152px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}

.mvv-card {
  background: var(--color-white);
  border-radius: 20px;
  padding: 36px 32px;
  border-top: 5px solid var(--color-primary);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  animation: borderGlow 4s ease-in-out infinite;
}

.mvv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(34,125,147,0.22);
}

.mvv-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  margin: 0 auto var(--space-4);
  font-size: 2rem;
}

.mvv-title {
  font-size: var(--text-2xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-4);
}

.mvv-divider {
  width: 40px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 2px;
  margin: 0 auto var(--space-4);
  opacity: 0.4;
}

.mvv-text {
  color: var(--color-gray-600);
  font-weight: var(--fw-bold);
  font-size: var(--text-base);
  line-height: 1.7;
  text-align: center;
}

/* ============================================================
   13. FOOTER
   ============================================================ */

.footer-inner {
  background: url('../../assets/images/footer.svg') top center no-repeat;
  background-size: cover;
  background-color: var(--color-gray-100);
  border-top: 1px solid var(--color-gray-200);
  padding: 0 var(--space-4);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: var(--space-12) 0;
  border-top: 1px solid var(--color-gray-200);
  max-width: 1152px;
  margin: 0 auto;
}

.footer-card {
  border-bottom: 4px solid var(--color-secondary);
  padding: var(--space-8);
  background: var(--color-gray-200);
  color: var(--color-gray-600);
  text-align: center;
  border-radius: var(--radius-sm);
  max-width: 320px;
  margin: 0 auto;
}

.footer-logo {
  margin: 0 auto var(--space-3);
}

.footer-address {
  margin-top: var(--space-3);
}

.footer-info {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin: var(--space-2) 0;
}

.footer-contact-link {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.footer-contact-link:hover {
  color: var(--color-gray-800);
  text-decoration: underline;
}

.footer-links-block {
  display: flex;
  flex-direction: column;
}

.footer-links-title {
  font-size: var(--text-xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.footer-link-title-a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.footer-link-title-a:hover {
  color: var(--color-gray-800);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: 0.9rem;
  color: var(--color-primary);
  transition: color var(--transition-fast), letter-spacing var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-gray-800);
  letter-spacing: 0.04em;
}

.footer-copy {
  text-align: center;
  padding: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-200);
  font-weight: var(--fw-bold);
}

/* ============================================================
   14. WHATSAPP FLOAT
   ============================================================ */

.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 64px;
  height: 64px;
  background-color: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 12px rgba(0,0,0,0.2);
  z-index: 200;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(37,211,102,0.4);
}

/* ============================================================
   15. RESPONSIVO
   ============================================================ */

/* Mobile first — breakpoints: sm 640px, md 768px, lg 1024px */

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .mvv-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .nav-links  { display: flex; }

  .intro-grid {
    flex-direction: row;
    align-items: flex-start;
  }

  .intro-left,
  .intro-right {
    width: 50%;
  }

  .intro-right {
    text-align: left;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1023px) {
  .nav-toggle { display: block; }
  .nav-links  { display: none; }

  .nav-container {
    padding: var(--space-2) var(--space-6);
  }
}

/* ============================================================
   16. PRINT
   ============================================================ */

@media print {
  .navbar,
  .whatsapp-float,
  .cta-button,
  .mobile-menu,
  .hero-stats {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  .hero {
    min-height: auto;
    background: none;
    padding: 2rem 1rem;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #444;
  }

  .service-card,
  .mvv-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}