/* =============================================
   ROTA DE METRÔ — Design System
   "São Paulo Urbano" — clean, modern, transit-inspired
   ============================================= */

/* --- CSS Variables --- */
:root {
  --dark:    #1C2B3A;
  --accent:  #E05000;
  --accent2: #C04400;
  --bg:      #F4F5F7;
  --card:    #FFFFFF;
  --text:    #2C3E50;
  --muted:   #7F8C8D;
  --border:  #E1E4E8;
  --yellow:  #F39C12;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
img  { max-width: 100%; height: auto; display: block; }
a    { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); text-decoration: underline; }

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
}

/* ============================================================
   HEADER — static by default, sticky after scroll
   ============================================================ */
.site-header {
  background: var(--dark);
  color: #fff;
  border-bottom: 3px solid var(--accent);
  position: relative;
  z-index: 100;
  transition: box-shadow 0.2s;
}

.site-header.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

/* Push content down when sticky kicks in */
body.header-sticky-active { padding-top: 68px; }
@media (max-width: 700px) {
  body.header-sticky-active { padding-top: 116px; } /* 56px bar + 44px search */
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 68px;
}

/* Logo */
.site-logo img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--accent);
}

/* Site title */
.site-branding { flex: 1; min-width: 0; }
.site-title {
  font-family: Georgia, serif;
  font-size: 1.15rem;
  font-weight: bold;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-title:hover { color: #FCE8B2; text-decoration: none; }
.site-tagline { display: none; } /* hidden — replaced by sticky search */

/* Search bar in header */
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 24px;
  padding: 5px 14px;
  gap: 8px;
  transition: background 0.2s, border 0.2s;
  position: relative;
}
.header-search:focus-within {
  background: rgba(255,255,255,0.18);
  border-color: var(--accent);
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.9rem;
  width: 180px;
}
.header-search input::placeholder { color: rgba(255,255,255,0.5); }

/* Site search (shared between desktop + mobile) */
.site-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-input {
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.9rem;
  width: 100%;
  min-width: 0;
}
.search-input::placeholder { color: rgba(255,255,255,0.5); }

/* Dropdown results */
.search-results {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: -14px;
  right: -14px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  z-index: 500;
  overflow: hidden;
  min-width: 280px;
}
.search-results.is-open { display: block; }

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid #F0F0F0;
  color: var(--dark);
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
  text-decoration: none;
  transition: background 0.1s;
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: #F7F8FA; text-decoration: none; color: var(--accent); }
.search-result-title { flex: 1; }
.search-result-title mark {
  background: #FFF3CD;
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}
.search-result-label {
  font-size: 0.7rem;
  font-weight: 700;
  background: #EEF2FF;
  color: #3730A3;
  padding: 2px 7px;
  border-radius: 8px;
  white-space: nowrap;
  flex-shrink: 0;
}
.search-no-results {
  padding: 14px 16px;
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
  color: var(--muted);
}

/* Nav */
.site-nav {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}
.site-nav a {
  color: rgba(255,255,255,0.8);
  font-family: Arial, sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.site-nav a:hover { color: #fff; text-decoration: none; }

/* ── Hamburger button (mobile only) ─────────────────── */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
  margin-left: 4px;
}
.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
/* Animate to X when open */
.mobile-menu-btn.is-open .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-menu-btn.is-open .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.is-open .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile search bar (below main bar, mobile only) ── */
.mobile-search-bar {
  display: none;
  background: rgba(0,0,0,0.25);
  padding: 8px 16px;
}
.mobile-search-bar .site-search {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 24px;
  padding: 7px 14px;
  width: 100%;
}
.mobile-search-bar .search-results {
  left: 0;
  right: 0;
  top: calc(100% + 8px);
}

/* ── Mobile dropdown nav ─────────────────────────────── */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.1);
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.18s ease, opacity 0.18s ease;
  pointer-events: none;
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav a {
  color: rgba(255,255,255,0.85);
  font-family: Arial, sans-serif;
  font-size: 0.95rem;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: block;
}
.mobile-nav a:hover {
  background: rgba(255,255,255,0.07);
  color: #fff;
  text-decoration: none;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 0 20px;
  font-family: Arial, sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--muted); }
.breadcrumb-current { color: var(--text); }

/* Post hero image */
.post-hero {
  margin: -36px -40px 28px;
  overflow: hidden;
  max-height: 420px;
}
.post-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Related posts */
.related-posts {
  margin-top: 36px;
  padding: 20px 24px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.related-title {
  font-family: Arial, sans-serif;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.related-title strong { color: var(--dark); }
.related-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.related-list li { border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.related-list li:last-child { border-bottom: none; padding-bottom: 0; }
.related-list a {
  font-family: Georgia, serif;
  font-size: 0.93rem;
  color: var(--dark);
}
.related-list a:hover { color: var(--accent); text-decoration: none; }

/* ============================================================
   HOME — Post Grid
   ============================================================ */
.post-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--card);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.post-card-image-link {
  display: block;
  overflow: hidden;
  height: 200px;
  background: #e9ecef;
}
.post-card-image-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.post-card:hover .post-card-image-link img { transform: scale(1.04); }

.post-card-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card-meta {
  font-family: Arial, sans-serif;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.post-card-title {
  font-size: 1.05rem;
  line-height: 1.4;
  margin-bottom: 10px;
}
.post-card-title a { color: var(--dark); }
.post-card-title a:hover { color: var(--accent); text-decoration: none; }

.post-card-excerpt {
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 14px;
  flex: 1;
}

.read-more {
  font-family: Arial, sans-serif;
  font-size: 0.82rem;
  font-weight: bold;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  align-self: flex-start;
}
.read-more:hover { color: var(--accent2); text-decoration: none; }

/* Card line tags */
.post-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.card-line-tag {
  font-family: Arial, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  color: #fff;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.card-line-tag--1 { background: #1D70B8; }
.card-line-tag--2 { background: #007A3D; }
.card-line-tag--3 { background: #CC1020; }
.card-line-tag--4 { background: #FFB800; color: #333; }
.card-line-tag--5 { background: #9B59B6; }

/* "Ver todos os posts" button */
.btn-all-posts {
  display: inline-block;
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: 24px;
  padding: 8px 22px;
  transition: background 0.15s, color 0.15s;
}
.btn-all-posts:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

/* ============================================================
   POST PAGE
   ============================================================ */
.post {
  background: var(--card);
  border-radius: 8px;
  padding: 36px 40px 48px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  max-width: 760px;
  margin: 0 auto;
}

.post-header { margin-bottom: 28px; }

.post-title {
  font-size: 1.9rem;
  line-height: 1.25;
  color: var(--dark);
  margin-bottom: 12px;
}

.post-meta {
  font-family: Arial, sans-serif;
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border);
}

.label-tag {
  background: #EEF2FF;
  color: #3730A3;
  padding: 2px 9px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.label-tag:hover { background: #DDE3FF; text-decoration: none; }

/* Post content */
.post-content p  { margin-bottom: 1.25em; }
.post-content h2 { font-size: 1.35rem; margin: 1.8em 0 0.6em; color: var(--dark); }
.post-content h3 { font-size: 1.1rem;  margin: 1.6em 0 0.5em; color: var(--dark); }
.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.post-content blockquote {
  background: #FFF8F0;
  border-left: 4px solid var(--accent);
  padding: 14px 20px;
  margin: 24px 0;
  font-style: normal;
  font-size: 0.95rem;
  border-radius: 0 6px 6px 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
}
.post-content th {
  background: var(--dark);
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
}
.post-content td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
}
.post-content tr:nth-child(even) td { background: #F8F9FA; }
.post-content img {
  margin: 20px auto;
  border-radius: 6px;
  max-width: 100%;
}

/* ============================================================
   SHARE BUTTONS
   ============================================================ */
.share-section {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.share-label {
  font-family: Arial, sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
.share-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: Arial, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, transform 0.1s;
  white-space: nowrap;
}
.share-btn:hover { filter: brightness(1.1); transform: translateY(-1px); text-decoration: none; }
.share-whatsapp { background: #25D366; color: #fff; }
.share-twitter  { background: #000;    color: #fff; }
.share-facebook { background: #1877F2; color: #fff; }
.share-copy     { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.share-copy:hover { background: var(--border); filter: none; }

/* ============================================================
   STICKY SHARE BAR
   ============================================================ */
.share-sticky {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(28, 43, 58, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 -2px 12px rgba(0,0,0,0.25);
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
}
.share-sticky.is-visible {
  transform: translateY(0);
  pointer-events: auto;
}

/* On wider screens: vertical sidebar instead of bottom bar */
@media (min-width: 900px) {
  .share-sticky {
    left: auto;
    right: 24px;
    bottom: 120px;
    top: auto;
    flex-direction: column;
    width: 52px;
    border-radius: 28px;
    padding: 12px 8px;
    gap: 6px;
  }
}

.share-sticky-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, filter 0.15s;
  flex-shrink: 0;
}
.share-sticky-btn:hover { transform: scale(1.12); filter: brightness(1.1); text-decoration: none; }
.share-sticky .share-whatsapp { background: #25D366; color: #fff; }
.share-sticky .share-twitter  { background: #000;    color: #fff; }
.share-sticky .share-facebook { background: #1877F2; color: #fff; }
.share-sticky .share-copy     { background: #4A5568; color: #fff; }

/* ============================================================
   STATIC PAGES
   ============================================================ */
.page-content {
  background: var(--card);
  border-radius: 8px;
  padding: 36px 40px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  max-width: 760px;
  margin: 0 auto;
}
.page-content p  { margin-bottom: 1.2em; }
.page-content h3 { font-size: 1.3rem; margin-bottom: 1em; color: var(--dark); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  padding: 28px 20px;
  margin-top: 56px;
  border-top: 3px solid var(--accent);
}
.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.footer-nav { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; font-size: 0.85rem; }
.footer-nav a { color: rgba(255,255,255,0.65); font-family: Arial, sans-serif; }
.footer-nav a:hover { color: #fff; text-decoration: none; }
.footer-copy { font-size: 0.78rem; font-family: Arial, sans-serif; }

.footer-lines {
  display: flex;
  gap: 0;
  border-radius: 4px;
  overflow: hidden;
  width: 200px;
  height: 6px;
}
.footer-lines span { flex: 1; display: block; }

/* ============================================================
   COOKIE CONSENT BANNER
   ============================================================ */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #1C2B3A;
  color: #fff;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  z-index: 9999;
  border-top: 3px solid var(--accent);
  font-family: Arial, sans-serif;
  font-size: 0.88rem;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
}
#cookie-banner p { margin: 0; line-height: 1.5; }
#cookie-banner a { color: #FCE8B2; }
.cookie-buttons { display: flex; gap: 10px; flex-shrink: 0; }
.btn-cookie-accept {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 9px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: bold;
}
.btn-cookie-accept:hover { background: var(--accent2); }
.btn-cookie-decline {
  background: transparent;
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 9px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
}
.btn-cookie-decline:hover { border-color: #fff; color: #fff; }

/* ============================================================
   HOME SECTIONS — by metro line
   ============================================================ */
.home-h1 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted, #666);
  margin: 0 0 28px;
  padding-bottom: 0;
  border: none;
  letter-spacing: 0;
  text-transform: none;
}

.home-section { margin-bottom: 48px; }

.section-title {
  font-family: Arial, sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.line-dot {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 700px) {
  /* Hide desktop elements */
  .header-search { display: none; }
  .site-nav { display: none; }

  /* Show mobile elements */
  .mobile-menu-btn { display: flex; }
  .mobile-search-bar { display: block; }
  .mobile-nav { display: flex; position: absolute; }

  /* Reduce header-inner height on mobile */
  .header-inner { height: 56px; }

  /* Site header needs position:relative for dropdown positioning */
  .site-header { position: relative; }
  .site-header.is-sticky { position: fixed; }

  /* Content */
  .post-list { grid-template-columns: 1fr; }
  .post { padding: 24px 18px 36px; }
  .post-hero { margin: -24px -18px 20px; }
  .post-title { font-size: 1.45rem; }
  .page-content { padding: 24px 18px; }
  .breadcrumb { padding: 12px 16px 0; }
}
@media (max-width: 900px) {
  .header-search input { width: 120px; }
  .site-nav a { font-size: 0.78rem; }
}