/* ==========================================================================
   RandoTrack — Design tokens
   Paleta provisória (grafite/noite + acento alta-visibilidade).
   Ajustar aqui caso a inspeção da identidade visual do app aponte outras cores.
   ========================================================================== */
:root {
  --color-bg: #0a0d13;
  --color-bg-elevated: #12161f;
  --color-bg-elevated-2: #1a2029;
  --color-border: rgba(255, 255, 255, 0.09);
  --color-text: #f3f5f8;
  --color-text-muted: #9aa5b3;
  /* Verde derivado da cor de marca real do app (#1B4D3E, ver randotrack_theme.dart),
     clareado para ter contraste suficiente sobre fundo escuro. */
  --color-accent: #2fd897;
  --color-accent-hover: #4de6ac;
  --color-accent-contrast: #04140d;
  --color-accent-2: #ffb454;
  --color-focus: #6fd3ff;

  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;

  --container-max: 72rem;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-card: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
  --transition-base: 200ms ease;
}

/* ==========================================================================
   Reset mínimo
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 var(--space-2);
  color: var(--color-text-muted);
}

ul {
  margin: 0;
  padding: 0;
}

button {
  font: inherit;
}

/* ==========================================================================
   Acessibilidade
   ========================================================================== */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -60px;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  z-index: 1000;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-2);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ==========================================================================
   Layout utilitário
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section {
  padding-block: var(--space-6);
}

.section-head {
  max-width: 40rem;
  margin-bottom: var(--space-4);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-2);
  margin-bottom: var(--space-1);
}

/* ==========================================================================
   Cabeçalho / navegação
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 13, 19, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--color-text);
}

.brand-accent {
  color: var(--color-accent);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
}

.nav-toggle svg {
  width: 1.35rem;
  height: 1.35rem;
}

.main-nav {
  position: fixed;
  inset: 4.25rem 0 0 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.main-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.main-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.main-nav a {
  display: block;
  padding: var(--space-2) var(--space-1);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--color-border);
}

.main-nav a[aria-current="page"] {
  color: var(--color-accent);
}

@media (min-width: 56rem) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    inset: auto;
    background: transparent;
    border-top: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .main-nav ul {
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
  }

  .main-nav a {
    padding: 0.35rem 0;
    border-bottom: 2px solid transparent;
    font-size: 0.95rem;
  }

  .main-nav a:hover,
  .main-nav a[aria-current="page"] {
    border-bottom-color: var(--color-accent);
  }
}

/* ==========================================================================
   Botões
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}

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

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

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

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

.btn-secondary:hover {
  border-color: var(--color-accent-2);
  color: var(--color-accent-2);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 32rem;
  background: radial-gradient(circle at 30% 20%, rgba(47, 216, 151, 0.16), transparent 60%),
    radial-gradient(circle at 80% 0%, rgba(255, 180, 84, 0.13), transparent 55%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  gap: var(--space-4);
}

.hero-copy h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  max-width: 22ch;
}

.hero-copy .lede {
  font-size: 1.1rem;
  max-width: 42ch;
  color: var(--color-text-muted);
}

.hero-visual {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--color-bg-elevated), var(--color-bg));
  padding: var(--space-3);
  box-shadow: var(--shadow-card);
}

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

.route-svg .route-path {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw-route 2.6s ease-out forwards 0.2s;
}

.route-svg .route-point {
  fill: var(--color-accent-2);
  opacity: 0;
  animation: pop-point 0.4s ease-out forwards;
}

.route-svg .route-point.p1 { animation-delay: 0.5s; }
.route-svg .route-point.p2 { animation-delay: 1.1s; }
.route-svg .route-point.p3 { animation-delay: 1.7s; }
.route-svg .route-point.p4 { animation-delay: 2.3s; }

@keyframes draw-route {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes pop-point {
  from {
    opacity: 0;
    transform: scale(0.4);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .route-svg .route-path {
    stroke-dashoffset: 0;
    animation: none;
  }
  .route-svg .route-point {
    opacity: 1;
    animation: none;
  }
}

@media (min-width: 64rem) {
  .hero .container {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

/* ==========================================================================
   Cards de recursos
   ========================================================================== */
.card-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

@media (min-width: 40rem) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.card-icon {
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: rgba(47, 216, 151, 0.14);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.card-icon svg {
  width: 1.4rem;
  height: 1.4rem;
}

.card h3 {
  font-size: 1.05rem;
}

.card p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* ==========================================================================
   Faixa de integração / destaque
   ========================================================================== */
.panel {
  background: linear-gradient(155deg, var(--color-bg-elevated-2), var(--color-bg-elevated));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.panel-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 56rem) {
  .panel-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* ==========================================================================
   Rodapé
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-4);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 40rem) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.footer-grid h4 {
  color: var(--color-text);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-accent-2);
}

.footer-bottom {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
}

/* ==========================================================================
   Páginas de conteúdo (privacidade, suporte, termos)
   ========================================================================== */
.page-header {
  padding-block: var(--space-5) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.page-header .eyebrow {
  margin-bottom: var(--space-1);
}

.draft-notice {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  background: rgba(255, 180, 84, 0.1);
  border: 1px solid rgba(255, 180, 84, 0.4);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.9rem;
}

.draft-notice strong {
  color: var(--color-accent-2);
}

.legal-content {
  max-width: 46rem;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin-top: var(--space-4);
}

.legal-content h3 {
  font-size: 1.05rem;
  margin-top: var(--space-3);
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin-bottom: var(--space-2);
}

.legal-content li {
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}

.toc {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-4);
}

.toc h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.toc ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.toc a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
}

.toc a:hover {
  color: var(--color-accent-2);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-2);
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  padding-block: 0.25rem;
}

.faq-item p {
  margin-top: var(--space-1);
}

.contact-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-4);
}

.contact-card a {
  color: var(--color-accent-2);
  font-weight: 600;
  text-decoration: none;
}

.contact-card a:hover {
  text-decoration: underline;
}