/* ==========================================================================
   Plataforma Envelhecer com Qualidade — Public Stylesheet
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-primary: #1a5276;
  --color-primary-dark: #154360;
  --color-primary-light: #2980b9;
  --color-accent: #c0392b;
  --color-accent-light: #e74c3c;
  --color-success: #27ae60;
  --color-success-bg: #d4efdf;
  --color-warning: #f39c12;
  --color-warning-bg: #fdebd0;
  --color-error: #c0392b;
  --color-error-bg: #fadbd8;
  --color-text: #2c3e50;
  --color-text-light: #5d6d7e;
  --color-bg: #f8f9fa;
  --color-bg-white: #ffffff;
  --color-border: #dce1e6;
  --color-border-focus: #2980b9;
  --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease-in-out;
  --max-width: 800px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Skip Link (Accessibility) ---------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  transition: top var(--transition);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ---------- Header ---------- */
.site-header {
  background-color: var(--color-primary);
  color: #fff;
  padding: 0;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  padding-bottom: 12px;
}

.site-title {
  color: #fff;
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-title:hover,
.site-title:focus {
  opacity: 0.9;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link:focus {
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.nav-link-cta {
  background-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
}

.nav-link-cta:hover,
.nav-link-cta:focus {
  background-color: var(--color-accent-light);
  color: #fff;
}

/* ---------- Hero Section ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}

.hero-text {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.9);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 3px solid var(--color-warning);
  outline-offset: 2px;
}

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

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

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

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--color-bg);
  border-color: var(--color-primary);
}

.btn-large {
  padding: 14px 32px;
  font-size: 1.1rem;
}

.btn-small {
  padding: 4px 12px;
  font-size: 0.85rem;
}

/* ---------- Info Section ---------- */
.info-section {
  padding: 48px 20px;
}

.info-section h2 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 32px;
  color: var(--color-primary);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.info-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
}

.info-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.info-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ---------- Forms ---------- */
.form-page {
  padding: 32px 20px;
}

.page-title {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-intro {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.required-marker {
  color: var(--color-accent);
  font-weight: 700;
}

.denuncia-form {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.15);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #aab;
}

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

.form-help {
  display: block;
  margin-top: 4px;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-group-half {
  flex: 1;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.alert ul {
  margin-top: 8px;
  margin-left: 20px;
}

.alert li {
  margin-bottom: 4px;
}

.alert-error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* ---------- Confirmation Page ---------- */
.confirmation-page {
  padding: 48px 20px;
}

.confirmation-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  margin: 0 auto;
}

.confirmation-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-success);
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.confirmation-title {
  font-size: 1.5rem;
  color: var(--color-success);
  margin-bottom: 16px;
}

.confirmation-text {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 12px;
  color: var(--color-text);
}

.confirmation-note {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
  font-style: italic;
}

.confirmation-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 24px 20px;
  text-align: center;
  margin-top: auto;
}

.site-footer p {
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.footer-note {
  font-size: 0.8rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- Focus Visible (Accessibility) ---------- */
:focus-visible {
  outline: 3px solid var(--color-warning);
  outline-offset: 2px;
}

/* ---------- Responsive Design ---------- */
@media (max-width: 768px) {
  .hero {
    padding: 40px 20px;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

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

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .form-actions {
    flex-direction: column;
  }

  .confirmation-actions {
    flex-direction: column;
  }

  .site-header .container {
    flex-direction: column;
    gap: 8px;
  }

  .nav-list {
    gap: 4px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .denuncia-form {
    padding: 20px;
  }

  .hero {
    padding: 32px 16px;
  }
}

/* ---------- Reduced Motion (Accessibility) ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ---------- Print Styles ---------- */
@media print {
  .site-header,
  .site-footer,
  .nav-list,
  .skip-link,
  .form-actions {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }
}