/* ============================================================
   modern-normalize (inline subset)
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { line-height: 1.15; -webkit-text-size-adjust: 100%; }
body { margin: 0; }
main { display: block; }
h1 { font-size: 2em; margin: .67em 0; }
hr { box-sizing: content-box; height: 0; overflow: visible; }
pre { font-family: monospace, monospace; font-size: 1em; }
a { background-color: transparent; }
abbr[title] { border-bottom: none; text-decoration: underline dotted; }
b, strong { font-weight: bolder; }
code, kbd, samp { font-family: monospace, monospace; font-size: 1em; }
small { font-size: 80%; }
sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; }
sub { bottom: -.25em; }
sup { top: -.5em; }
img { border-style: none; }
button, input, optgroup, select, textarea { font-family: inherit; font-size: 100%; line-height: 1.15; margin: 0; }
button, input { overflow: visible; }
button, select { text-transform: none; }
button, [type="button"], [type="reset"], [type="submit"] { -webkit-appearance: button; }
fieldset { padding: .35em .75em .625em; }
legend { box-sizing: border-box; color: inherit; display: table; max-width: 100%; padding: 0; white-space: normal; }
progress { vertical-align: baseline; }
textarea { overflow: auto; }
[type="checkbox"], [type="radio"] { box-sizing: border-box; padding: 0; }
[type="number"]::-webkit-inner-spin-button, [type="number"]::-webkit-outer-spin-button { height: auto; }
[type="search"] { -webkit-appearance: textfield; outline-offset: -2px; }
[type="search"]::-webkit-search-decoration { -webkit-appearance: none; }
::-webkit-file-upload-button { -webkit-appearance: button; font: inherit; }
details { display: block; }
summary { display: list-item; }
template { display: none; }
[hidden] { display: none; }

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --color-primary: #1a5276;
  --color-primary-dark: #154360;
  --color-accent: #c0392b;
  --color-accent-dark: #a93226;
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #e9ecef;
  --color-gray-200: #dee2e6;
  --color-gray-600: #6c757d;
  --color-gray-800: #343a40;
  --color-text: #212529;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md: 0 4px 6px rgba(0,0,0,.1), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);

  --nav-height: 64px;
  --container-max: 1100px;
  --transition: 200ms ease;
}

/* ============================================================
   Base & Typography
   ============================================================ */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.3;
  margin-top: 0;
  font-weight: 600;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  margin-top: 0;
  margin-bottom: var(--space-2);
}

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

a:hover {
  color: var(--color-accent);
}

address {
  font-style: normal;
  line-height: 1.8;
}

ul {
  padding-left: var(--space-3);
  margin: 0;
}

/* ============================================================
   Layout Utilities
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

.section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.section--alt {
  background: var(--color-gray-50);
}

.obs {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  font-style: italic;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 12px var(--space-4);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

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

.btn-white:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-100);
  color: var(--color-primary);
}

/* ============================================================
   Navigation
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

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

.nav__logo {
  display: block;
  flex-shrink: 0;
}

.nav__logo img {
  height: 44px;
  width: auto;
  display: block;
}

.nav__links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-1);
}

.nav__links a {
  display: block;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-800);
  transition: color var(--transition), background var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-primary);
  background: var(--color-gray-50);
}

.nav__links a.active {
  font-weight: 600;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-gray-800);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav__mobile {
  display: none;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-100);
  padding: var(--space-2) 0;
}

.nav__mobile.open {
  display: block;
}

.nav__mobile ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__mobile a {
  display: block;
  padding: 12px var(--space-2);
  color: var(--color-gray-800);
  font-weight: 500;
  border-bottom: 1px solid var(--color-gray-100);
}

.nav__mobile a:hover,
.nav__mobile a.active {
  color: var(--color-primary);
  background: var(--color-gray-50);
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
  .nav__toggle {
    display: none;
  }
}

/* ============================================================
   Hero Section (index only)
   ============================================================ */
.hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  background-image: url('../img/background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-white);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(26, 82, 118, 0.82);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: var(--space-10) 0;
}

.hero__eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.75);
  margin-bottom: var(--space-2);
}

.hero__title {
  color: var(--color-white);
  margin-bottom: var(--space-3);
  max-width: 680px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.9);
  margin-bottom: var(--space-5);
  max-width: 600px;
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

/* ============================================================
   Page Header (inner pages)
   ============================================================ */
.page-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-6) 0;
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.page-header p {
  color: rgba(255,255,255,.8);
  margin: 0;
}

/* ============================================================
   Card Grid
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 4px solid var(--color-accent);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-3);
  color: var(--color-accent);
}

.card__icon svg {
  width: 100%;
  height: 100%;
}

.card h3 {
  margin-bottom: var(--space-2);
}

.card p {
  color: var(--color-gray-600);
  margin: 0;
}

/* ============================================================
   Coverage Summary (index page)
   ============================================================ */
.coverage-intro {
  max-width: 800px;
}

.coverage-intro p {
  color: var(--color-gray-800);
  line-height: 1.8;
}

/* ============================================================
   FAQ Accordion
   ============================================================ */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

details.faq-item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  background: var(--color-white);
  overflow: hidden;
}

details.faq-item + details.faq-item {
  margin-top: 0;
}

summary.faq-question {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
  user-select: none;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
  margin-left: auto;
  transition: transform var(--transition);
  flex-shrink: 0;
}

details[open] > summary.faq-question::after {
  transform: rotate(-135deg);
}

summary.faq-question:hover {
  background: var(--color-gray-50);
}

details[open] > summary.faq-question {
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}

.faq-answer {
  padding: var(--space-3) var(--space-4);
  color: var(--color-gray-800);
  line-height: 1.8;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ============================================================
   Contact Items
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 600px;
}

@media (min-width: 640px) {
  .contact-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}

.contact-item__icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item__body {
  min-width: 0;
}

.contact-item__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-gray-600);
  margin-bottom: 2px;
}

.contact-item__value {
  font-weight: 500;
  color: var(--color-text);
}

.contact-item__value a {
  color: var(--color-primary);
  word-break: break-all;
}

/* ============================================================
   About / Quem Somos
   ============================================================ */
.about-content {
  max-width: 760px;
}

.about-content p {
  line-height: 1.85;
  color: var(--color-gray-800);
}

.address-block {
  background: var(--color-gray-50);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.address-block h4 {
  margin-bottom: var(--space-2);
}

/* ============================================================
   CTA Banner (index page)
   ============================================================ */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: var(--space-8) 0;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.cta-banner p {
  color: rgba(255,255,255,.85);
  margin-bottom: var(--space-4);
  font-size: 1.05rem;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,.85);
}

.footer-partners {
  padding: var(--space-6) 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-partners h3 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  align-items: center;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2);
}

.partner-logo img {
  max-width: 140px;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.8;
  transition: opacity var(--transition);
}

.partner-logo:hover img {
  opacity: 1;
}

.footer-bottom {
  padding: var(--space-3) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: rgba(255,255,255,.6);
}

.footer-bottom a {
  color: rgba(255,255,255,.7);
}

.footer-bottom a:hover {
  color: var(--color-white);
}

/* ============================================================
   Responsive adjustments
   ============================================================ */
@media (min-width: 768px) {
  .section {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

@media (max-width: 600px) {
  .hero {
    background-attachment: scroll;
  }
  .hero__cta {
    flex-direction: column;
    align-items: flex-start;
  }
}