/* =========================================================
   SecureNet — style.css
   Identidade visual: azul (segurança), tons escuros, fundo claro.
   ========================================================= */

:root {
  --color-primary: #1a4d8f;
  --color-primary-dark: #0d2c52;
  --color-primary-light: #3b74c4;
  --color-accent: #0f9d8f;
  --color-bg: #f5f8fb;
  --color-surface: #ffffff;
  --color-text: #1c2733;
  --color-text-muted: #4a5568;
  --color-border: #d8e1ec;
  --color-alert-bg: #fff4e5;
  --color-alert-border: #d98c00;
  --color-alert-text: #6b4700;
  --color-focus: #ff9800;

  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(13, 44, 82, 0.08);
  --shadow-md: 0 4px 14px rgba(13, 44, 82, 0.12);

  --header-height: 72px;
  --max-width: 1180px;

  --font-base: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* =====================
   RESET / BASE
   ===================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  padding-left: 1.25rem;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
}

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

h1,
h2,
h3,
h4 {
  color: var(--color-primary-dark);
  line-height: 1.25;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.15rem;
}

p {
  margin-top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Foco visível para toda navegação por teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 0;
  top: -100%;
  background: var(--color-primary-dark);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  text-decoration: none;
  border-radius: 0 0 6px 0;
  transition: top 0.2s ease;
}

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

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.section-intro {
  color: var(--color-text-muted);
  max-width: 65ch;
  margin-bottom: 2rem;
}

/* =====================
   BOTÕES
   ===================== */
.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

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

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

.btn-secondary {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-secondary:hover {
  background-color: #0b7d72;
  color: #fff;
}

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

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

/* =====================
   HEADER / NAV
   ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-primary-dark);
  text-decoration: none;
}

.logo-icon {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 0.1rem;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background-color: var(--color-primary-dark);
  margin: 0 auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Compensa cabeçalho fixo ao navegar por âncoras */
section[id] {
  scroll-margin-top: calc(var(--header-height) + 12px);
}

/* =====================
   HERO
   ===================== */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  z-index: -2;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13, 44, 82, 0.94) 0%, rgba(13, 44, 82, 0.8) 45%, rgba(26, 77, 143, 0.55) 100%);
  z-index: -1;
}

.hero-container {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 1.5rem;
  max-width: 760px;
}

.hero h1,
.hero .hero-subtitle {
  color: #fff;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-text {
  color: #dce8f7;
  margin-bottom: 2rem;
  max-width: 65ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.hero .btn-primary:hover {
  background-color: #dce8f7;
}

.hero .btn-secondary {
  background-color: transparent;
  color: #fff;
  border-color: #fff;
}

.hero .btn-secondary:hover {
  background-color: #fff;
  color: var(--color-primary-dark);
}

/* =====================
   GOLPES / FILTROS
   ===================== */
.scams {
  background-color: var(--color-surface);
}

.scams-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.scams-filters {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: sticky;
  top: calc(var(--header-height) + 16px);
}

.scams-filters h2 {
  font-size: 1.15rem;
}

.filter-group {
  margin-bottom: 1.25rem;
}

.filter-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.filter-group input,
.filter-group select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font: inherit;
  background-color: #fff;
  color: var(--color-text);
}

#clearFilters {
  width: 100%;
}

.scams-empty {
  background-color: var(--color-alert-bg);
  border: 1px solid var(--color-alert-border);
  color: var(--color-alert-text);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
}

.scams-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.scam-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.scam-card[hidden] {
  display: none;
}

.scam-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.scam-card-header h3 {
  margin-bottom: 0;
}

.scam-category {
  flex-shrink: 0;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
}

.scam-description {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.scam-details {
  margin-top: auto;
}

.scam-details summary {
  cursor: pointer;
  list-style: none;
}

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

.scam-details-content {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.scam-details-content h4 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
  color: var(--color-primary-dark);
}

.scam-details-content ul {
  margin-top: 0;
  margin-bottom: 1rem;
}

.scam-details-content p {
  color: var(--color-text-muted);
}

/* =====================
   COMO SE PROTEGER
   ===================== */
.protection {
  background-color: var(--color-bg);
}

.protection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.protection-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
}

.protection-card p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.highlight-banner {
  background-color: var(--color-primary-dark);
  color: #fff;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  padding: 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 0;
}

/* =====================
   FUI VÍTIMA
   ===================== */
.victim {
  background-color: var(--color-surface);
}

.victim-steps {
  display: grid;
  gap: 1rem;
  padding-left: 1.5rem;
  max-width: 70ch;
  margin-bottom: 2rem;
}

.victim-steps li {
  padding-left: 0.35rem;
}

.victim-steps strong {
  color: var(--color-primary-dark);
}

.alert-box {
  background-color: var(--color-alert-bg);
  border: 1px solid var(--color-alert-border);
  border-left: 5px solid var(--color-alert-border);
  color: var(--color-alert-text);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 70ch;
}

.alert-box p {
  margin: 0;
}

/* =====================
   QUIZ
   ===================== */
.quiz {
  background-color: var(--color-bg);
}

.quiz-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  max-width: 700px;
}

.quiz-start p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.quiz-difficulty-title {
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.75rem;
}

.quiz-difficulty-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.quiz-difficulty-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  text-align: left;
  font: inherit;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  cursor: pointer;
  border-left-width: 6px;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.quiz-difficulty-btn:hover,
.quiz-difficulty-btn:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.quiz-difficulty-btn.is-facil {
  border-left-color: #1c8a4a;
}

.quiz-difficulty-btn.is-medio {
  border-left-color: #d98c00;
}

.quiz-difficulty-btn.is-dificil {
  border-left-color: #b3261e;
}

.quiz-difficulty-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
}

.quiz-difficulty-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.quiz-progress {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.quiz-question fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.quiz-question legend {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  padding: 0;
  margin-bottom: 1rem;
}

.quiz-options {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  cursor: pointer;
}

.quiz-option:hover {
  border-color: var(--color-primary);
}

.quiz-option input {
  margin: 0;
  flex-shrink: 0;
}

.quiz-option.is-correct {
  border-color: #1c8a4a;
  background-color: #eaf7ef;
}

.quiz-option.is-incorrect {
  border-color: #b3261e;
  background-color: #fbeaea;
}

.quiz-feedback {
  font-weight: 600;
  min-height: 1.5em;
}

.quiz-feedback.is-correct {
  color: #1c8a4a;
}

.quiz-feedback.is-incorrect {
  color: #b3261e;
}

.quiz-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.quiz-result h3 {
  margin-bottom: 0.5rem;
}

.quiz-level-label {
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

.quiz-score-bar {
  height: 10px;
  border-radius: 999px;
  background-color: var(--color-border);
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.quiz-score-bar-fill {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.quiz-score {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.quiz-message {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.quiz-topic-feedback {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.quiz-feedback-group {
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--color-border);
}

.quiz-feedback-group h4 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.quiz-feedback-group p {
  margin: 0;
  font-size: 0.95rem;
}

.quiz-feedback-strengths {
  background-color: #eaf7ef;
  border-color: #bfe3cc;
}

.quiz-feedback-strengths h4 {
  color: #1c8a4a;
}

.quiz-feedback-weaknesses {
  background-color: #fff4e5;
  border-color: #f0d4a3;
}

.quiz-feedback-weaknesses h4 {
  color: #a6650a;
}

.quiz-feedback-weaknesses a {
  color: var(--color-primary);
  font-weight: 600;
}

.quiz-review {
  margin-bottom: 1.5rem;
}

.quiz-review h4 {
  margin-bottom: 0.25rem;
}

.quiz-review-hint {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.quiz-review-item {
  border: 1px solid var(--color-border);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 0.6rem;
}

.quiz-review-item.is-correct {
  border-left-color: #1c8a4a;
}

.quiz-review-item.is-incorrect {
  border-left-color: #b3261e;
}

.quiz-review-item summary {
  cursor: pointer;
  font-weight: 600;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.quiz-review-status {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  color: #fff;
}

.quiz-review-item.is-correct .quiz-review-status {
  background-color: #1c8a4a;
}

.quiz-review-item.is-incorrect .quiz-review-status {
  background-color: #b3261e;
}

.quiz-review-content {
  margin-top: 0.6rem;
  color: var(--color-text-muted);
}

.quiz-review-content p {
  margin: 0 0 0.4rem;
}

/* =====================
   FONTES
   ===================== */
.sources {
  background-color: var(--color-surface);
}

.sources-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.sources-list li {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 0.85rem;
  color: var(--color-text-muted);
}

.source-name {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.sources-list a {
  color: var(--color-primary);
  font-weight: 600;
  white-space: nowrap;
}

.sources-list a:hover {
  color: var(--color-primary-dark);
}

.sources-note {
  color: var(--color-text-muted);
  font-style: italic;
}

/* =====================
   FOOTER
   ===================== */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #dce8f7;
  padding-top: 3rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-brand-heading {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.footer-brand-heading .logo-icon {
  width: 36px;
  height: 36px;
}

.footer-brand .logo-text {
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
}

.footer-brand p {
  color: #b9cbe4;
  max-width: 40ch;
}

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.footer-links a {
  color: #b9cbe4;
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-sources p {
  color: #b9cbe4;
}

.footer-disclaimer {
  text-align: center;
  border-top: 1px solid #24406b;
  padding: 1.25rem 1.5rem;
  margin: 0;
  font-size: 0.9rem;
  color: #9db4d4;
}

/* =====================
   RESPONSIVIDADE
   ===================== */

/* Tablet */
@media (max-width: 900px) {
  .scams-layout {
    grid-template-columns: 1fr;
  }

  .scams-filters {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    align-items: end;
    gap: 1rem;
  }

  .filter-group {
    margin-bottom: 0;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* Celular */
@media (max-width: 640px) {
  .header-container {
    padding: 0 1rem;
  }

  .main-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.is-open {
    max-height: 400px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
  }

  .main-nav a {
    display: block;
    padding: 0.9rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-toggle {
    display: flex;
  }

  .section-container,
  .hero-container {
    padding: 3rem 1.25rem;
  }

  .scams-filters {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn,
  .quiz-actions .btn {
    width: 100%;
  }

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

/* =====================
   ACESSIBILIDADE — MOVIMENTO
   ===================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}