/* ═══════════════════════════════════════════════
   TH Cyber Defense — styles.css
   Caminho A: Dark técnico premium
   ═══════════════════════════════════════════════ */

/* ─── Fonts ─── */
@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ─── Tokens ─── */
:root {
  --bg:             #0A0B0D;
  --surface:        #111317;
  --surface-hover:  #181B20;
  --border:         rgba(255, 255, 255, 0.08);
  --border-strong:  rgba(255, 255, 255, 0.14);
  --text-primary:   #E8E9EA;
  --text-muted:     #6B7280;
  --text-faint:     #3F4247;
  --accent:         #F5A623;
  --accent-muted:   rgba(245, 166, 35, 0.12);
  --text-on-accent: #0A0B0D;

  /* Scale: 14/16/20/28/40/56px */
  --fs-xs:   0.875rem;   /* 14px */
  --fs-sm:   1rem;       /* 16px */
  --fs-md:   1.25rem;    /* 20px */
  --fs-lg:   1.75rem;    /* 28px */
  --fs-xl:   2.5rem;     /* 40px */
  --fs-2xl:  3.5rem;     /* 56px */
  --fs-3xl:  4.5rem;     /* 72px */

  --lh-body:    1.5;
  --lh-display: 1.1;

  --space-section-desktop: 96px;
  --space-section-mobile:  64px;

  --max-content: 1120px;
  --max-reading:  720px;

  --radius: 2px;
  --transition: 120ms ease;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  min-width: 320px;
  overflow-x: hidden;
}

/* ─── Typography ─── */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: var(--lh-display);
  color: var(--text-primary);
}

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

a:hover { opacity: 0.8; }

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

ul, ol { list-style: none; }

strong { font-weight: 600; }

/* ─── Buttons ─── */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--text-on-accent);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--transition);
  line-height: 1;
}

.btn-primary:hover { opacity: 0.88; color: var(--text-on-accent); }
.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 16px 24px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition);
}

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

/* ─── Divider ─── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ─── Nav ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 13, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-logo:hover { opacity: 0.8; color: var(--text-primary); }

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

.nav-links a {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text-primary); opacity: 1; }

.nav-cta {
  color: var(--accent) !important;
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── Sections ─── */
.section {
  padding: var(--space-section-desktop) 24px;
}

.section-alt {
  background: var(--surface);
}

.section-inner {
  max-width: var(--max-content);
  margin: 0 auto;
}

.section-heading {
  font-size: var(--fs-xl);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.section-intro {
  font-size: var(--fs-md);
  color: var(--text-muted);
  max-width: var(--max-reading);
  margin-bottom: 56px;
  line-height: var(--lh-body);
}

/* ─── Hero ─── */
.hero {
  padding: 80px 24px var(--space-section-desktop);
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
}

.hero-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-location {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-heading {
  font-size: var(--fs-2xl);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-sub {
  font-size: var(--fs-md);
  color: var(--text-muted);
  max-width: 440px;
  margin-bottom: 32px;
  line-height: var(--lh-body);
}

.hero-contact {
  margin-bottom: 32px;
}

.hero-email {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.hero-email:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  opacity: 1;
}

.hero-aside {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-diagram {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  background: var(--surface);
  width: 100%;
  max-width: 360px;
}

.hero-diagram svg {
  width: 100%;
  height: auto;
}

/* ─── Method ─── */
.method-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.method-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  align-items: start;
}

.method-step:last-child {
  border-bottom: 1px solid var(--border);
}

.step-num {
  font-size: var(--fs-xs);
  color: var(--accent);
  font-weight: 600;
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.step-title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  max-width: var(--max-reading);
  line-height: var(--lh-body);
}

/* ─── Auth Grid ─── */
.auth-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.auth-card {
  background: var(--surface);
  padding: 32px;
}

.auth-card:hover {
  background: var(--surface-hover);
}

.auth-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.auth-desc {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: var(--lh-body);
}

/* ─── Services ─── */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.service-card {
  border: 1px solid var(--border);
  border-bottom: none;
  padding: 40px;
  border-radius: 0;
}

.service-card:first-child {
  border-radius: var(--radius) var(--radius) 0 0;
}

.service-card:last-child {
  border-bottom: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
}

.service-name {
  font-size: var(--fs-lg);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.service-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.service-scope,
.service-duration,
.service-price {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.service-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.delivers-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.delivers-label-not {
  color: var(--text-faint);
}

.delivers-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.delivers-list li {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
  line-height: var(--lh-body);
}

.service-delivers .delivers-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.service-not .delivers-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

/* ─── Report Block ─── */
.report-block {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: start;
}

.report-text p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: 16px;
  max-width: var(--max-reading);
  line-height: var(--lh-body);
}

.report-text p:last-child { margin-bottom: 0; }

.report-preview {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 280px;
  background: var(--bg);
}

.report-preview-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rph-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 600;
}

.report-preview-row {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rp-field {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.rp-val {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 600;
}

.rp-val.accent {
  color: var(--accent);
}

.report-preview-footer {
  padding: 14px 20px;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ─── About ─── */
.about-block {
  max-width: var(--max-reading);
}

.about-intro {
  font-size: var(--fs-md);
  color: var(--text-primary);
  margin-bottom: 24px;
  line-height: var(--lh-body);
}

.about-block p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: var(--lh-body);
}

.about-facts {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
}

.about-fact {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}

.fact-label {
  font-size: var(--fs-xs);
  color: var(--text-faint);
  font-weight: 600;
}

.fact-value {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* ─── Disclosure ─── */
.disclosure-inner {
  max-width: var(--max-reading);
}

.disclosure-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.disclosure-sub {
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 16px;
}

.disclosure-body p,
.disclosure-body ul li {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: var(--lh-body);
}

.disclosure-body ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.disclosure-body ul li {
  padding-left: 16px;
  position: relative;
}

.disclosure-body ul li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.disclosure-note {
  font-size: var(--fs-xs);
  color: var(--text-faint);
  border-top: 1px solid var(--border);
  padding-top: 24px;
  max-width: var(--max-reading);
}

/* ─── Contact Form ─── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 80px;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Honeypot */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

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

.field-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 600;
}

.required {
  color: var(--accent);
  margin-left: 2px;
}

.field-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--fs-sm);
  padding: 12px 16px;
  width: 100%;
  transition: border-color var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.field-input::placeholder {
  color: var(--text-faint);
}

.field-input:focus {
  outline: none;
  border-color: var(--accent);
}

.field-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.field-select option {
  background: var(--surface);
  color: var(--text-primary);
}

.field-textarea {
  resize: vertical;
  min-height: 120px;
}

.field-input.error {
  border-color: #E05252;
}

.field-error {
  font-size: var(--fs-xs);
  color: #E05252;
  min-height: 16px;
}

.lgpd-notice {
  font-size: var(--fs-xs);
  color: var(--text-faint);
  line-height: var(--lh-body);
}

.lgpd-notice a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.form-status {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.form-status.success { color: #4ADE80; }
.form-status.error-msg { color: #E05252; }

.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.contact-aside-title {
  font-size: var(--fs-xs);
  color: var(--text-faint);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.contact-link {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-primary);
  margin-bottom: 12px;
  word-break: break-all;
}

.contact-link:hover { color: var(--accent); opacity: 1; }

.contact-aside-note {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: var(--lh-body);
}

.contact-direct {
  border-top: 1px solid var(--border);
  padding-top: 32px;
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}

.footer-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
  align-items: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-name {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.footer-location {
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-decoration: none;
}

.footer-nav a:hover { color: var(--text-primary); opacity: 1; }

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: right;
}

.footer-legal span {
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ─── Privacy Page ─── */
.privacy-body {
  max-width: var(--max-reading);
}

.privacy-section {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.privacy-section:last-of-type {
  border-bottom: 1px solid var(--border);
}

.privacy-h2 {
  font-size: var(--fs-md);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.privacy-section p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: var(--lh-body);
}

.privacy-section p:last-child { margin-bottom: 0; }

.privacy-list {
  list-style: none;
  margin: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.privacy-list li {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}

.privacy-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.privacy-updated {
  margin-top: 32px;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ─── Mobile ─── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
  }

  .nav-links.open { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    color: var(--text-primary);
  }

  .nav-links a:hover {
    background: var(--surface);
  }

  .site-header { position: relative; }

  .section {
    padding: var(--space-section-mobile) 20px;
  }

  .section-heading {
    font-size: var(--fs-lg);
    letter-spacing: -0.01em;
  }

  .section-intro {
    font-size: var(--fs-sm);
    margin-bottom: 40px;
  }

  .hero {
    padding: 48px 20px 64px;
    min-height: auto;
    align-items: flex-start;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-heading {
    font-size: var(--fs-xl);
    letter-spacing: -0.02em;
  }

  .hero-sub {
    font-size: var(--fs-sm);
  }

  .hero-aside {
    justify-content: flex-start;
  }

  .hero-diagram {
    max-width: 100%;
    padding: 24px 20px;
  }

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

  .service-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .service-card {
    padding: 24px 20px;
  }

  .report-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .disclosure-body {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-fact {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: left;
  }

  .footer-legal {
    text-align: left;
  }

  .method-step {
    grid-template-columns: 32px 1fr;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero-heading {
    font-size: var(--fs-lg);
  }

  .service-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* ─── 404 Page ─── */
.hero-inner-narrow {
  grid-template-columns: 1fr;
  max-width: 640px;
}

.heading-40 {
  font-size: var(--fs-xl);
}