:root {
  /* Colors from BraindBook (Evvo Identity) */
  --clr-bg: #283033;
  /* Gunmetal - Main Background */
  --clr-bg-alt: #023555;
  /* Prussian Blue - Alternate Backgrounds */
  --clr-primary: #0475BB;
  /* French Blue - Primary Action */
  --clr-primary-dark: #023555;
  /* Prussian Blue */
  --clr-accent: #0475BB;
  /* French Blue as Accent */
  --clr-text: #F0F0F0;
  /* Selective - Main Text */
  --clr-text-muted: #A0ABB0;
  /* Muted text for secondary content */
  --clr-border: rgba(4, 117, 185, 0.3);
  /* French blue low opacity */
  --clr-border-light: rgba(240, 240, 240, 0.1);
  --clr-white: #ffffff;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-detail: 'Nova Round', system-ui, sans-serif;

  /* Spacing Rhythm */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-8: 5rem;
  --space-10: 8rem;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p {
  letter-spacing: 0.01em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-10) 0;
  position: relative;
  border-top: 1px solid var(--clr-border-light);
}

.text-center {
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  border-radius: 4px;
  /* Sharper */
  font-weight: 600;
  font-family: var(--font-mono);
  /* Tech feel */
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

.btn-primary:hover {
  background: transparent;
  color: var(--clr-primary);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
}

.btn-outline:hover {
  background: rgba(4, 117, 185, 0.1);
  border-color: var(--clr-primary);
}

.btn-full {
  width: 100%;
}

/* Typography Helpers */
.section-label {
  color: var(--clr-primary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
  display: block;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border-light);
}

.header.scrolled {
  padding: var(--space-2) 0;
  background: rgba(40, 48, 51, 0.95);
  backdrop-filter: blur(10px);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-img {
  height: 60px;
  width: auto;
}

.nav-list {
  display: flex;
  gap: var(--space-5);
}

.nav-link {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
}

.nav-link:hover {
  color: var(--clr-primary);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 1px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  border-top: none;
  background-color: var(--clr-bg);
  background-image:
    radial-gradient(circle at center, rgba(4, 117, 185, 0.15) 0%, transparent 60%),
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 30px 30px;
  background-position: center center, center center;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-6);
  align-items: center;
}

.hero-container.hero-centered {
  grid-template-columns: 1fr;
  text-align: center;
}

.hero-container.hero-centered .hero-description {
  margin-left: auto;
  margin-right: auto;
}

.hero-container.hero-centered .hero-actions {
  justify-content: center;
}

.hero-title {
  font-size: clamp(3.5rem, 6vw, 5rem);
  margin-bottom: var(--space-4);
  line-height: 1.05;
  color: var(--clr-white);
}

.hero-description {
  font-size: 1.2rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
}



/* A Evvo Section */
.a-evvo {
  background: var(--clr-bg-alt);
}

.a-evvo-container {
  max-width: 1000px;
}

.a-evvo-text {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  line-height: 1.3;
  margin-bottom: var(--space-5);
  font-weight: 600;
  color: var(--clr-white);
}

.a-evvo-subtext {
  font-size: 1.2rem;
  color: var(--clr-text-muted);
  max-width: 800px;
  line-height: 1.8;
  border-left: 2px solid var(--clr-primary);
  padding-left: var(--space-4);
}

/* Bento Grid Serviços */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: auto auto;
  gap: var(--space-4);
}

.bento-item {
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-border);
  padding: var(--space-6) var(--space-5);
  border-radius: 8px;
  transition: var(--transition);
}

.bento-item:hover {
  border-color: var(--clr-primary);
  background: rgba(4, 117, 185, 0.05);
}

.bento-large {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-5);
}

.bento-large p {
  max-width: 600px;
  margin: 0 auto;
}

.bento-icon {
  color: var(--clr-primary);
  margin-bottom: var(--space-4);
}

.bento-item h4 {
  font-size: 1.3rem;
  margin-bottom: var(--space-3);
}

.bento-item p {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
}

/* Engenharia */
.engenharia-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.engenharia-card {
  padding: var(--space-5) 0;
  border-top: 2px solid var(--clr-border-light);
  transition: var(--transition);
}

.engenharia-card:hover {
  border-top-color: var(--clr-primary);
}

.eng-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
  color: var(--clr-white);
}

.eng-text {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
}



/* Contato Console */
.contato {
  background: var(--clr-bg-alt);
}

.console-box {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  overflow: hidden;
  max-width: 1000px;
  margin: 0 auto;
}

.console-header {
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.console-dots {
  display: flex;
  gap: 8px;
}

.console-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clr-border-light);
}

.console-title {
  font-family: var(--font-mono);
  color: var(--clr-text-muted);
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.console-body {
  padding: var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-8);
}

.console-heading {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
  color: var(--clr-white);
}

.contato-info p {
  color: var(--clr-text-muted);
  margin-bottom: var(--space-5);
}

.console-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.c-prompt {
  color: var(--clr-primary);
  font-weight: bold;
}

.c-key {
  color: var(--clr-text-muted);
}

.console-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.c-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.c-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.c-form-group label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  letter-spacing: 1px;
}

.console-form input,
.console-form textarea {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--clr-border-light);
  padding: var(--space-3);
  color: var(--clr-text);
  font-family: var(--font-mono);
  border-radius: 4px;
  transition: var(--transition);
}

.console-form input:focus,
.console-form textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  background: rgba(4, 117, 185, 0.05);
}

.console-btn {
  align-self: flex-start;
  margin-top: var(--space-2);
}

/* Footer */
.footer {
  background: var(--clr-bg);
  padding: var(--space-8) 0 var(--space-4);
}

.footer-logo {
  height: 60px;
}

.footer-brand p {
  color: var(--clr-text-muted);
  max-width: 400px;
  font-size: 0.95rem;
}

.footer-bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--clr-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--clr-text-muted);
  font-size: 0.85rem;
}

.social-links {
  display: flex;
  gap: var(--space-4);
  font-family: var(--font-mono);
}

.social-links a:hover {
  color: var(--clr-primary);
}

/* Animations Reveal */
[data-reveal] {
  opacity: 0;
  transition: all 0.8s ease;
}

[data-reveal="up"] {
  transform: translateY(30px);
}

[data-reveal="left"] {
  transform: translateX(-30px);
}

[data-reveal="right"] {
  transform: translateX(30px);
}

[data-reveal="fade"] {
  transform: scale(0.95);
}

[data-reveal].visible {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

/* Responsive */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .bento-grid,
  .engenharia-grid {
    grid-template-columns: 1fr 1fr;
  }

  .bento-large {
    grid-column: span 2;
  }

  .console-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
    /* Menos padding lateral no mobile */
  }

  .section {
    padding: var(--space-6) 0;
    /* Menos espaçamento vertical */
  }

  .logo-img {
    height: 40px;
    /* Logo menor no mobile */
  }

  /* --- Mobile Menu Styles --- */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(40, 48, 51, 0.98);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 999;
  }

  body.menu-open .nav {
    opacity: 1;
    visibility: visible;
  }

  body.menu-open {
    overflow: hidden;
  }

  .nav-list {
    flex-direction: column;
    text-align: center;
    gap: var(--space-6);
  }

  .nav-link {
    font-size: 1.5rem;
  }

  .menu-toggle {
    display: flex;
    z-index: 1001;
  }

  body.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  body.menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  body.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .a-evvo-text {
    font-size: 1.8rem;
  }

  .bento-grid,
  .engenharia-grid {
    grid-template-columns: 1fr;
  }

  .bento-large {
    grid-column: span 1;
  }

  .c-form-row {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}