/* ==========================================================================
   TUBA — Mobilidade de Barcelos
   Folha de estilos moderna, limpa e responsiva (Mobile-First)
   ========================================================================== */

:root {
  /* Paleta oficial TUBA */
  --color-hero-bg: #00b6ef;
  --color-primary: #00b4ec;
  --color-primary-dark: #0082ad;
  --color-primary-soft: rgba(0, 180, 236, 0.1);
  --color-phone: #00a3d9;

  --color-ink: #0c0c0c;
  --color-text: #1f2428;
  --color-muted: #666c73;
  --color-watermark: #e2e4e8;

  --color-surface: #ffffff;
  --color-surface-alt: #f7fafc;
  --color-border: #e4ebf0;
  --color-footer: #000000;

  /* Tipografia */
  --font-heading: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Layout & Dimensões */
  --container-max: 1180px;
  --header-height: 76px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  /* Sombras e Transições */
  --shadow-sm: 0 2px 10px rgba(12, 12, 12, 0.05);
  --shadow-md: 0 10px 30px rgba(0, 21, 61, 0.08);
  --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-surface);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

figure {
  margin: 0;
}

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast),
    border-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Utilitários de Acessibilidade */
.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;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: #ffffff;
  background-color: var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.skip-link:focus {
  top: 1rem;
}

/* Contentores */
.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

.narrow-container {
  max-width: 820px;
}

/* --------------------------------------------------------------------------
   Cabeçalho & Navegação (Mobile-First)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 100%;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo img {
  width: auto;
  height: clamp(28px, 4.5vw, 42px);
}

/* Botão Hambúrguer Mobile */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--color-ink);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.menu-toggle:hover {
  background-color: var(--color-surface-alt);
  border-color: var(--color-primary);
}

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* Menu Mobile (Dropdown acessível) */
.site-nav {
  position: fixed;
  top: var(--header-height);
  inset-inline: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 1rem 1.25rem 1.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast),
    visibility var(--transition-fast);
}

.site-nav.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.75rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--color-ink);
  border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-primary-dark);
  background-color: var(--color-primary-soft);
}

.nav-link.nav-link--highlight {
  color: #ffffff;
  background-color: var(--color-primary);
  text-align: center;
  margin-block: 0.2rem;
}

.nav-link.nav-link--highlight:hover,
.nav-link.nav-link--highlight.is-active {
  color: #ffffff;
  background-color: var(--color-primary-dark);
}

/* Navegação Desktop */
@media (min-width: 1080px) {
  :root {
    --header-height: 86px;
  }

  .header-inner {
    gap: 1rem;
  }

  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 0.2rem;
  }

  .nav-link {
    position: relative;
    padding: 0.5rem 0.65rem;
    font-size: 0.78rem;
    white-space: nowrap;
  }

  .nav-link:not(.nav-link--highlight) {
    background: transparent;
  }

  .nav-link:not(.nav-link--highlight)::after {
    content: "";
    position: absolute;
    left: 0.65rem;
    right: 0.65rem;
    bottom: 0.2rem;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-fast);
  }

  .nav-link:not(.nav-link--highlight):hover,
  .nav-link:not(.nav-link--highlight).is-active {
    background: transparent;
    color: var(--color-primary-dark);
  }

  .nav-link:not(.nav-link--highlight):hover::after,
  .nav-link:not(.nav-link--highlight).is-active::after {
    transform: scaleX(1);
  }

  .nav-link.nav-link--highlight {
    margin-block: 0;
    margin-inline: 0.2rem;
    padding: 0.52rem 1.05rem;
    border-radius: 999px;
    color: #ffffff;
    background-color: var(--color-primary);
  }

  .nav-link.nav-link--highlight:hover,
  .nav-link.nav-link--highlight.is-active {
    color: #ffffff;
    background-color: var(--color-primary-dark);
  }
}

@media (min-width: 1200px) {
  .header-inner {
    gap: 1.5rem;
  }

  .nav-list {
    gap: 0.3rem;
  }

  .nav-link {
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
  }

  .nav-link:not(.nav-link--highlight)::after {
    left: 0.8rem;
    right: 0.8rem;
  }

  .nav-link.nav-link--highlight {
    padding: 0.55rem 1.15rem;
  }
}

/* --------------------------------------------------------------------------
   Hero Banner
   -------------------------------------------------------------------------- */
.hero-section {
  background-color: var(--color-hero-bg);
  overflow: hidden;
}

.hero-container {
  display: flex;
  justify-content: center;
  max-width: 1120px;
}

.hero-image {
  width: 100%;
  max-width: 1024px;
}

/* --------------------------------------------------------------------------
   Secções & Tipografia de Títulos com Marca-d'Água
   -------------------------------------------------------------------------- */
.section {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

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

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

.horarios-anchor {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.section-heading {
  position: relative;
  margin-bottom: 1.5rem;
  text-align: center;
}

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

.section-watermark {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 7.5vw, 5.4rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--color-watermark);
  user-select: none;
  pointer-events: none;
  word-break: break-word;
}

.section-title {
  position: relative;
  z-index: 1;
  margin: -0.36em 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

h3.section-title {
  margin-top: 0;
  margin-bottom: 1.25rem;
  text-align: center;
}

.section-title--pipes {
  font-size: clamp(1.25rem, 2.8vw, 2.15rem);
  line-height: 1.35;
}

/* Nota introdutória em O Tuba */
.intro-notice {
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
  padding: clamp(1.25rem, 3vw, 1.85rem) clamp(1.25rem, 4vw, 2.5rem);
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  font-weight: 300;
  line-height: 1.65;
  text-align: center;
  color: var(--color-ink);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.intro-notice p {
  margin: 0;
}

.intro-notice p + p {
  margin-top: 0.9rem;
}

.intro-notice strong {
  font-weight: 600;
}

/* Texto Editorial */
.editorial-copy {
  font-size: clamp(0.95rem, 1.4vw, 1.02rem);
  line-height: 1.75;
  color: var(--color-text);
  text-align: center;
}

.editorial-copy--center {
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.editorial-copy p {
  margin: 0 0 1.15rem;
}

.editorial-copy p:last-child {
  margin-bottom: 0;
}

.editorial-copy strong {
  font-weight: 700;
  color: var(--color-ink);
}

.feature-banner {
  margin-top: clamp(2.25rem, 5vw, 3.5rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.feature-banner img {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Grelha Bipartida (A Rede, Troca de Títulos, Validação)
   -------------------------------------------------------------------------- */
.split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.split-media {
  max-width: 540px;
  margin-inline: auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.split-content {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

.content-block {
  width: 100%;
}

@media (min-width: 860px) {
  .section-heading:not(.section-heading--center),
  h3.section-title,
  .editorial-copy:not(.editorial-copy--center) {
    text-align: left;
  }

  .split-grid--text-first {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .split-grid--media-first {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .split-media {
    max-width: none;
  }
}

/* Listas Informativas */
.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.info-list li {
  position: relative;
  padding-left: 1.65rem;
  line-height: 1.6;
  text-align: left;
}

.info-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
}

/* Cartões de Download de Horários (PDF) */
.schedule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.schedule-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1.1rem;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.45;
  text-align: left;
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.schedule-card:hover {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.schedule-icon {
  flex-shrink: 0;
  color: var(--color-primary);
}

/* Postos de Venda (Onde Fazer?) */
.locations-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.location-card {
  font-style: normal;
  font-family: var(--font-heading);
  font-size: 0.96rem;
  line-height: 1.6;
  padding: 1.1rem 1.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.location-card strong {
  font-weight: 600;
  color: var(--color-ink);
}

@media (min-width: 860px) {
  .location-card {
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   Secção Contacto
   -------------------------------------------------------------------------- */
.contact-lead {
  margin: 0 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--color-ink);
}

.contact-label {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-muted);
}

.contact-phone-wrap {
  margin: 0.25rem 0 0.5rem;
}

.contact-phone {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-phone);
  border-radius: var(--radius-sm);
}

.contact-phone:hover {
  color: var(--color-primary-dark);
  background-color: var(--color-primary-soft);
}

.contact-note {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   Secção Formulário & Locais de Entrega
   -------------------------------------------------------------------------- */
.form-cta-wrap {
  margin: 1.75rem 0 1.5rem;
}

.form-cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2rem;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(0, 180, 236, 0.28);
}

.form-cta-link:hover {
  color: #ffffff;
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 130, 173, 0.32);
}

.form-helper {
  margin: 0.75rem 0 0.35rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-text);
}

.form-email-wrap {
  margin: 0 0 1.25rem;
}

.email-link {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.email-link:hover {
  color: var(--color-ink);
}

.delivery-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 680px) {
  .delivery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.delivery-card {
  font-style: normal;
  padding: 1.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.delivery-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--color-ink);
}

.delivery-card h4 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--color-primary-dark);
}

.delivery-card p {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   Rodapé
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-footer);
  padding-block: 2rem;
}

.footer-inner {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-logo {
  display: inline-block;
  opacity: 0.95;
}

.footer-logo:hover {
  opacity: 1;
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Animações Progressivas (Seguras caso o JS esteja desativado)
   -------------------------------------------------------------------------- */
.js-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.js-enabled [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@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;
  }

  .js-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Impressão limpa */
@media print {
  .site-header,
  .skip-link {
    display: none;
  }

  .section {
    padding-block: 1.5rem;
  }
}