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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.3rem; font-weight: 600; }

p { margin: 0 0 var(--space-4); }

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

.section {
  padding: calc(var(--space-9) * 0.3) 0;
}

.section-header {
  max-width: 640px;
  margin: 0 auto var(--space-7);
  text-align: center;
}

.section-header p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  color: var(--color-primary-dark);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: var(--space-3);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85em 1.6em;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-gray-300);
}

.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }

.btn-block { width: 100%; }

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-gray-100);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.brand img { height: 42px; width: auto; }

/* nav-actions mora dentro de <nav>, ao lado de nav-links, para os dois ficarem juntos no mesmo
   painel dropdown no mobile (ver @media 860px). No desktop isso só reproduz o layout lado a
   lado que já existia. */
.site-header nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover { color: var(--color-primary-dark); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-3);
  margin: calc(var(--space-3) * -1);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-8) 0 var(--space-5);
}

.site-footer a {
  color: var(--color-gray-200);
  text-decoration: none;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}

.footer-grid h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.85rem;
  color: var(--color-gray-300);
}

/* Forms */
.form-field {
  margin-bottom: var(--space-5);
}

.form-field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
}

.form-field .hint,
.hint {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

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

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="date"],
input[type="number"],
input[type="file"],
select,
textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 1em;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-ink);
}

textarea { resize: vertical; min-height: 100px; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.field-error {
  border-color: var(--color-error) !important;
}

.field-error-message {
  color: var(--color-error);
  font-size: 0.82rem;
  margin-top: var(--space-1);
  display: none;
}

.field-error-message.visible { display: block; }

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.checkbox-field input {
  width: auto;
  margin-top: 4px;
  accent-color: var(--color-primary);
}

.checkbox-field label {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

/* Alerts / feedback */
.alert {
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-size: 0.92rem;
  margin-bottom: var(--space-5);
  display: none;
}

.alert.visible { display: block; }

.alert-success { background: var(--color-success-bg); color: var(--color-success); }
.alert-error { background: var(--color-error-bg); color: var(--color-error); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.3em 0.9em;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-neutral { background: var(--color-gray-100); color: var(--color-ink-soft); }

.spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-3);
  z-index: 100;
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

@media (max-width: 860px) {
  /* nav-actions mora dentro de <nav>, junto com nav-links, especificamente para que os dois
     apareçam empilhados dentro do mesmo painel dropdown no mobile — antes disso, os botões
     secundários (Entrar, Sair, Voltar ao início etc.) ficavam escondidos sem nenhuma forma de
     acessá-los pelo celular. */
  .site-header nav { display: none; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .site-header.nav-open nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--space-5);
    border-bottom: 1px solid var(--color-gray-100);
    gap: var(--space-4);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }

  .site-header.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .site-header.nav-open .nav-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
  }

  .site-header.nav-open .nav-actions .btn {
    width: 100%;
  }
}