/* ==========================================================================
   GENIAIS SOLUTIONS · LINEAR.APP DESIGN SYSTEM SPECIFICATION (AIOX SQUAD)
   CANON: Deep Near-Black, Hairline Precision, Layered Surfaces, Zero AI Slop
   ========================================================================== */

:root {
  /* Canvas & Surface Ladder */
  --canvas-bg: #010102;
  --surface-alt: #08090b;
  --surface-1: #0e1013;
  --surface-2: #14161a;
  --surface-3: #1a1d22;
  
  /* Hairline Borders */
  --hairline: rgba(255, 255, 255, 0.08);
  --hairline-subtle: rgba(255, 255, 255, 0.04);
  --hairline-strong: rgba(255, 255, 255, 0.16);

  /* Linear Acent Color Tokens (Linear Lavender & Indigo) */
  --primary: #5e6ad2;
  --primary-hover: #6f7de3;
  --primary-light: #828fff;
  --primary-subtle: rgba(94, 106, 210, 0.12);
  --primary-border: rgba(94, 106, 210, 0.3);

  /* Typography Colors */
  --ink-pure: #f7f8f8;
  --ink: #d0d6e0;
  --ink-muted: #9fa6b2;
  --ink-subtle: #8e95a2;

  /* Font Stacks */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Layout Spacing */
  --container-max: 1200px;
  --container-px: 24px;
  --nav-height: 60px;

  /* Semantics */
  --semantic-success: #27a644;
  --semantic-error: #e5484d;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--canvas-bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  background-color: var(--canvas-bg);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

/* ==========================================================================
   TOP NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(1, 1, 2, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hairline);
  z-index: 1000;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-pure);
}

.brand-logo svg {
  width: 20px;
  height: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  font-weight: 400;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--ink-pure);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  display: flex;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xs);
  padding: 2px;
  background: var(--surface-1);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--ink-subtle);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 6px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.15s ease;
}

.lang-btn.active {
  background: var(--surface-3);
  color: var(--ink-pure);
}

/* Linear Buttons */
.btn {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 3px rgba(0, 0, 0, 0.4);
}

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

.btn-secondary {
  background: var(--surface-1);
  border-color: var(--hairline);
  color: var(--ink);
}

.btn-secondary:hover {
  background: var(--surface-2);
  border-color: var(--hairline-strong);
  color: var(--ink-pure);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 0.875rem;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--ink);
  font-size: 20px;
  cursor: pointer;
}

/* ==========================================================================
   SEÇÕES & RITMO ARQUITETURAL (SPACING CANON)
   ========================================================================== */
.section {
  padding: 120px 0;
  border-bottom: 1px solid var(--hairline);
  position: relative;
}

/* Alternância de superfícies para quebrar monotonia */
.section-methodology,
.section-gov {
  background-color: var(--surface-alt);
}

.section-header {
  margin-bottom: 64px;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-light);
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary-light);
}

.section-heading {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink-pure);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--ink-muted);
  max-width: 640px;
  line-height: 1.65;
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: calc(var(--nav-height) + 100px);
  padding-bottom: 120px;
  border-bottom: 1px solid var(--hairline);
  background: radial-gradient(circle at 80% 20%, rgba(94, 106, 210, 0.08) 0%, transparent 60%);
}

.hero-grid-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-light);
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-title {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--ink-pure);
  margin-bottom: 24px;
}

.hero-lead {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink-muted);
  margin-bottom: 36px;
  font-weight: 400;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual-frame {
  position: relative;
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.05);
  aspect-ratio: 16 / 9;
}

.hero-visual-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.hero-visual-frame:hover .hero-visual-img {
  transform: scale(1.03);
}

/* ==========================================================================
   2. SOLUÇÕES & CAPACIDADES (2x2 Grid)
   ========================================================================== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.solution-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.solution-card:hover {
  background: var(--surface-2);
  border-color: var(--hairline-strong);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.solution-thumb-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000000;
  border-bottom: 1px solid var(--hairline);
}

.solution-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.solution-card:hover .solution-thumb-img {
  transform: scale(1.04);
}

.solution-content {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.solution-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--primary-light);
  margin-bottom: 12px;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink-pure);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.solution-card p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--ink-muted);
}

/* ==========================================================================
   3. METODOLOGIA DE PROCESSO (4 Colunas)
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease;
}

.process-card:hover {
  border-color: var(--hairline-strong);
}

.process-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.process-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-pure);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.process-card p {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ==========================================================================
   4. INSTITUCIONAL & SOBRE A EMPRESA (Layout Editorial)
   ========================================================================== */
.about-hero-box {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.about-meta-badge {
  display: inline-block;
  font-size: 0.6875rem;
  color: var(--ink-subtle);
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xs);
  padding: 6px 12px;
  margin-top: 20px;
}

.about-highlight-p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--ink-pure);
  margin-bottom: 20px;
  font-weight: 400;
}

.about-sub-p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ink-muted);
  margin-bottom: 36px;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
}

.about-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about-stat-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-light);
  letter-spacing: -0.02em;
}

.about-stat-lbl {
  font-size: 0.75rem;
  color: var(--ink-subtle);
  line-height: 1.4;
}

/* ==========================================================================
   5. GOVERNANÇA & SEGURANÇA (3 Cards Horizontais)
   ========================================================================== */
.gov-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.gov-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.gov-card:hover {
  background: var(--surface-2);
  border-color: var(--hairline-strong);
  transform: translateY(-2px);
}

.gov-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.gov-card-icon svg {
  width: 20px;
  height: 20px;
}

.gov-card h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink-pure);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.gov-card p {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* ==========================================================================
   6. CONTATO CORPORATIVO (Container Amplo & Polido)
   ========================================================================== */
.contact-card-container {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  padding: 64px 56px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 36px;
}

.contact-channel-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-entry-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-subtle);
}

.contact-entry-value {
  font-size: 0.9375rem;
  color: var(--ink-pure);
  font-weight: 500;
}

.contact-entry-value a:hover {
  color: var(--primary-light);
}

.contact-address {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink-muted);
  font-weight: 400;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-muted);
}

.form-input, .form-select, .form-textarea {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--ink-pure);
  font-size: 0.875rem;
  outline: none;
  font-family: var(--font-sans);
  transition: all 0.15s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  background: var(--surface-3);
  box-shadow: 0 0 0 1px var(--primary);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-feedback {
  display: none;
  font-size: 0.8125rem;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.form-feedback.success {
  display: block;
  background: rgba(39, 166, 68, 0.12);
  border: 1px solid var(--semantic-success);
  color: #a7f3d0;
}

.form-feedback.error {
  display: block;
  background: rgba(229, 72, 77, 0.12);
  border: 1px solid var(--semantic-error);
  color: #fca5a5;
}

/* ==========================================================================
   7. RODAPÉ CORPORATIVO
   ========================================================================== */
.site-footer {
  padding: 96px 0 48px;
  border-top: 1px solid var(--hairline);
  background: var(--canvas-bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1.3fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-subtle);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--ink-pure);
}

.legal-box {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--ink-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.legal-box strong {
  color: var(--ink);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--hairline-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--ink-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   MODAL DE CONTATO
   ========================================================================== */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(1, 1, 2, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-dialog {
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 36px 32px;
  position: relative;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.9);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--ink-subtle);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--ink-pure);
}

/* ==========================================================================
   RESPONSIVIDADE (MOBILE & TABLET)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid-layout,
  .about-hero-box,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .process-grid,
  .gov-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card-container {
    padding: 40px 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .solutions-grid,
  .process-grid,
  .gov-cards-grid {
    grid-template-columns: 1fr;
  }

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

  .about-stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .contact-card-container {
    padding: 28px 20px;
  }
}