/* ============================================================
   UltraBolso — main.css
   Paleta clara (creme + preto + azul), editorial magazine style
   ============================================================ */

:root {
  --c-bg: #f5f5f0;
  --c-bg-raised: #ffffff;
  --c-ink: #141414;
  --c-ink-soft: #3a3a3a;
  --c-blue: #2f6fed;
  --c-blue-dim: rgba(47, 111, 237, 0.1);
  --c-gray: #6b6f76;
  --c-gray-dim: #9a9ea5;
  --c-hairline: #e0ddd2;
  --c-hairline-strong: #141414;
  --c-up: #16794e;
  --c-down: #c23a2e;

  --font-display: "Fraunces", serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --radius: 6px;
  --max-width: 1320px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* -------------------- Reset básico -------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
input { font-family: inherit; }

.screen-reader-text {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px); white-space: nowrap;
}
.ub-skip-link {
  position: absolute; top: -50px; left: 0; background: var(--c-blue); color: #fff;
  padding: 10px 16px; z-index: 1000; transition: top 0.2s var(--ease);
}
.ub-skip-link:focus { top: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

/* -------------------- Barra de progresso de leitura -------------------- */
.ub-progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px; width: 0%;
  background: var(--c-blue);
  z-index: 999;
  transition: width 0.1s linear;
}

/* -------------------- Ticker -------------------- */
.ub-ticker {
  background: var(--c-ink);
  color: var(--c-bg);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid var(--c-hairline-strong);
}
.ub-ticker-track {
  display: inline-flex;
  gap: 2.5rem;
  padding: 0.55rem 1.5rem;
  animation: ub-ticker-scroll 40s linear infinite;
}
.ub-ticker:hover .ub-ticker-track { animation-play-state: paused; }
@keyframes ub-ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.ub-ticker-item {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  gap: 0.5rem;
}
.ub-ticker-item strong { color: var(--c-gray-dim); font-weight: 500; }
.ub-up { color: #6fd39a; }
.ub-down { color: #f2897d; }

/* -------------------- Header -------------------- */
.ub-header {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-hairline-strong);
  position: sticky;
  top: 0;
  z-index: 100;
}
.ub-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.ub-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--c-ink);
  letter-spacing: -0.01em;
}
.ub-blue { color: var(--c-blue); }

.ub-nav-list {
  display: flex;
  gap: 1.8rem;
  font-size: 0.95rem;
  font-weight: 500;
}
.ub-nav-list a {
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.2s ease;
}
.ub-nav-list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--c-blue);
  transition: width 0.3s var(--ease);
}
.ub-nav-list a:hover { color: var(--c-blue); }
.ub-nav-list a:hover::after { width: 100%; }

.ub-header-actions { display: flex; align-items: center; gap: 1rem; }
.ub-search-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  transition: background 0.2s ease;
}
.ub-search-toggle:hover { background: var(--c-blue-dim); color: var(--c-blue); }

.ub-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 38px; height: 38px;
  align-items: center;
  justify-content: center;
}
.ub-menu-toggle span {
  width: 22px; height: 2px;
  background: var(--c-ink);
  transition: transform 0.3s var(--ease), opacity 0.2s ease;
}
.ub-menu-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ub-menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.ub-menu-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.ub-mobile-menu {
  max-height: 0;
  overflow: hidden;
  background: var(--c-bg);
  border-bottom: 0px solid var(--c-hairline-strong);
  transition: max-height 0.4s var(--ease);
}
.ub-mobile-menu.is-open {
  max-height: 500px;
  border-bottom-width: 1px;
}
.ub-mobile-nav-list { padding: 1rem 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.ub-mobile-nav-list a { font-size: 1.05rem; font-weight: 500; }

.ub-search-overlay {
  position: fixed; inset: 0;
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 200;
}
.ub-search-overlay.is-open { opacity: 1; pointer-events: auto; }
.ub-search-overlay-inner {
  background: var(--c-bg-raised);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 90%; max-width: 560px;
  display: flex; align-items: center; gap: 1rem;
  transform: translateY(-12px);
  transition: transform 0.3s var(--ease);
}
.ub-search-overlay.is-open .ub-search-overlay-inner { transform: translateY(0); }
.ub-search-close { font-size: 1.6rem; line-height: 1; color: var(--c-gray); }

/* -------------------- Formulário de busca -------------------- */
.ub-search-form { display: flex; flex: 1; gap: 0.5rem; }
.ub-search-field {
  flex: 1;
  border: 1px solid var(--c-hairline);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  font-size: 1rem;
  background: var(--c-bg);
}
.ub-search-field:focus { outline: none; border-color: var(--c-blue); }
.ub-search-submit {
  background: var(--c-blue);
  color: #fff;
  border-radius: var(--radius);
  padding: 0.7rem 1.2rem;
  font-weight: 600;
  transition: opacity 0.2s ease;
}
.ub-search-submit:hover { opacity: 0.88; }

/* -------------------- Layout geral -------------------- */
.ub-page-wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem 3rem; }
.ub-page-wrap--narrow { max-width: 760px; padding-top: 2.5rem; }
.ub-layout { display: grid; grid-template-columns: 1fr 320px; gap: 2.5rem; align-items: start; }

/* -------------------- Hero / slider -------------------- */
.ub-hero {
  position: relative;
  margin: 1.5rem 0 2.5rem;
  border-bottom: 1px solid var(--c-hairline-strong);
  padding-bottom: 2.5rem;
}
.ub-hero-slide {
  display: none;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.ub-hero-slide.is-active { display: block; animation: ub-fade-in 0.6s var(--ease); }
@keyframes ub-fade-in {
  from { opacity: 0; } to { opacity: 1; }
}
.ub-hero-media { display: block; aspect-ratio: 16/8; overflow: hidden; }
.ub-hero-media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
}
.ub-hero-fallback {
  width: 100%; height: 100%; aspect-ratio: 16/8;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #e9e7de, #dedbcf);
}
.ub-hero-fallback span { font-family: var(--font-display); font-size: 3rem; color: var(--c-gray-dim); }
.ub-hero-content {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 2.5rem 2rem 1.75rem;
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.15) 70%, transparent 100%);
}
.ub-hero-content .ub-meta-row { color: #e8e6df; }
.ub-hero-content .ub-tag { color: #9fc1ff; }
.ub-hero-title { font-size: clamp(1.8rem, 3.6vw, 3.1rem); color: #fff; margin: 0; }
.ub-hero-title a { transition: opacity 0.2s ease; }
.ub-hero-title a:hover { opacity: 0.85; }

.ub-hero-dots {
  position: absolute;
  bottom: 1.75rem; right: 2rem;
  display: flex; gap: 0.5rem;
}
.ub-hero-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: background 0.25s ease, transform 0.25s ease;
}
.ub-hero-dot.is-active { background: var(--c-blue); transform: scale(1.25); }

/* -------------------- Meta row (categoria · data · leitura) -------------------- */
.ub-meta-row {
  display: flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--c-gray);
  margin-bottom: 0.6rem;
}
.ub-tag { color: var(--c-blue); font-weight: 600; transition: opacity 0.2s ease; }
.ub-tag:hover { opacity: 0.75; }
.ub-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--c-gray-dim); flex-shrink: 0; }

/* -------------------- Grid de cards -------------------- */
.ub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 1.75rem;
}
.ub-grid--3 { grid-template-columns: repeat(3, 1fr); }

.ub-card { display: flex; flex-direction: column; }
.ub-thumb {
  display: block;
  position: relative;
  aspect-ratio: 16/10;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, #eeece4, #e2dfd3);
  margin-bottom: 0.9rem;
}
.ub-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease), filter 0.4s ease;
  filter: saturate(0.95) contrast(1.02);
}
.ub-card:hover .ub-thumb img { transform: scale(1.045); filter: saturate(1.05); }
.ub-thumb--fallback { display: flex; align-items: center; justify-content: center; }
.ub-thumb--fallback span { font-family: var(--font-display); font-size: 1.9rem; color: var(--c-gray-dim); }

.ub-card-title { font-size: 1.15rem; margin: 0 0 0.4rem; }
.ub-card-title a {
  background-image: linear-gradient(var(--c-blue), var(--c-blue));
  background-repeat: no-repeat; background-position: 0 100%; background-size: 0% 1px;
  transition: background-size 0.3s ease;
}
.ub-card-title a:hover { background-size: 100% 1px; }
.ub-card-excerpt { color: var(--c-gray); font-size: 0.92rem; margin: 0; }

.ub-pagination { display: flex; gap: 0.75rem; margin-top: 2.5rem; font-family: var(--font-mono); font-size: 0.85rem; flex-wrap: wrap; }
.ub-pagination .page-numbers {
  padding: 0.5rem 0.9rem; border: 1px solid var(--c-hairline); border-radius: var(--radius);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.ub-pagination .page-numbers.current,
.ub-pagination .page-numbers:hover { border-color: var(--c-blue); color: var(--c-blue); }

/* -------------------- Sidebar / mais lidos -------------------- */
.ub-sidebar { display: flex; flex-direction: column; gap: 2.5rem; }
.ub-sidebar-title {
  font-size: 1.4rem;
  border-bottom: 1px solid var(--c-hairline-strong);
  padding-bottom: 0.6rem;
  margin-bottom: 1rem;
}
.ub-mais-lidos-list { display: flex; flex-direction: column; }
.ub-mais-lidos-item {
  display: grid;
  grid-template-columns: 24px 56px 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--c-hairline);
}
.ub-mais-lidos-item:last-child { border-bottom: none; }
.ub-mais-lidos-num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--c-gray-dim);
}
.ub-mais-lidos-item .ub-thumb {
  aspect-ratio: 1/1; margin-bottom: 0; width: 56px; height: 56px;
}
.ub-mais-lidos-titulo {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.3;
  transition: color 0.2s ease;
}
.ub-mais-lidos-titulo:hover { color: var(--c-blue); }

/* -------------------- Newsletter -------------------- */
.ub-newsletter {
  border: 1px solid var(--c-hairline-strong);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.ub-newsletter h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }
.ub-newsletter p { color: var(--c-gray); font-size: 0.9rem; margin: 0 0 1rem; }
.ub-newsletter-form { display: flex; flex-direction: column; gap: 0.6rem; }
.ub-newsletter-form input {
  border: 1px solid var(--c-hairline); border-radius: var(--radius);
  padding: 0.65rem 0.85rem; font-size: 0.92rem; background: var(--c-bg);
}
.ub-newsletter-form input:focus { outline: none; border-color: var(--c-blue); }
.ub-newsletter-form button {
  background: var(--c-blue); color: #fff; font-weight: 600;
  border-radius: var(--radius); padding: 0.7rem;
  transition: opacity 0.2s ease, transform 0.15s ease;
}
.ub-newsletter-form button:hover { opacity: 0.88; }
.ub-newsletter-form button:active { transform: scale(0.98); }
.ub-newsletter-form.is-loading button { opacity: 0.6; pointer-events: none; }
.ub-newsletter-feedback { font-size: 0.85rem; margin-top: 0.6rem; min-height: 1.2em; }
.ub-newsletter-feedback.is-success { color: var(--c-up); }
.ub-newsletter-feedback.is-error { color: var(--c-down); }

/* -------------------- Botões genéricos -------------------- */
.ub-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.75rem 1.4rem; border-radius: var(--radius);
  font-weight: 600; font-size: 0.95rem;
  transition: opacity 0.2s ease, transform 0.15s ease;
}
.ub-btn--primary { background: var(--c-blue); color: #fff; }
.ub-btn--primary:hover { opacity: 0.88; }
.ub-btn--primary:active { transform: scale(0.98); }

/* -------------------- Single / artigo -------------------- */
.ub-single-title, .ub-archive-title { font-size: clamp(1.8rem, 3vw, 2.6rem); }
.ub-single-byline { color: var(--c-gray); font-size: 0.9rem; margin: 0 0 1.5rem; }
.ub-single-byline span { color: var(--c-ink); font-weight: 600; }
.ub-single-thumb { border-radius: var(--radius); overflow: hidden; margin-bottom: 2rem; aspect-ratio: 16/9; }
.ub-single-thumb img { width: 100%; height: 100%; object-fit: cover; }

.ub-single-content { font-size: 1.08rem; line-height: 1.75; }
.ub-single-content p { margin: 0 0 1.4em; }
.ub-single-content h2 { font-size: 1.6rem; margin-top: 1.8em; }
.ub-single-content h3 { font-size: 1.3rem; margin-top: 1.5em; }
.ub-single-content blockquote {
  border-left: 3px solid var(--c-blue);
  margin: 1.8em 0; padding: 0.2em 0 0.2em 1.3em;
  font-style: italic; color: var(--c-ink-soft);
}
.ub-single-content img { border-radius: var(--radius); margin: 1.5em 0; }
.ub-single-content a { color: var(--c-blue); text-decoration: underline; text-underline-offset: 3px; }

.ub-single-footer { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--c-hairline-strong); }
.ub-tags-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.2rem; }
.ub-tag-pill {
  border: 1px solid var(--c-hairline); border-radius: 999px;
  padding: 0.35rem 0.85rem; font-size: 0.82rem; color: var(--c-gray);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.ub-tag-pill:hover { border-color: var(--c-blue); color: var(--c-blue); }
.ub-share { display: flex; align-items: center; gap: 1rem; font-size: 0.88rem; color: var(--c-gray); }
.ub-share a { font-weight: 600; color: var(--c-ink); transition: color 0.2s ease; }
.ub-share a:hover { color: var(--c-blue); }

.ub-relacionados { margin: 3rem 0; padding-top: 2rem; border-top: 1px solid var(--c-hairline-strong); }

/* -------------------- Comentários -------------------- */
.ub-comments-wrap { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--c-hairline-strong); }
.ub-comments-list .comment { padding: 1rem 0; border-bottom: 1px solid var(--c-hairline); }
.comment-form input,
.comment-form textarea {
  width: 100%; border: 1px solid var(--c-hairline); border-radius: var(--radius);
  padding: 0.7rem 0.9rem; font-family: var(--font-body); margin-bottom: 0.9rem;
}
.comment-form textarea { min-height: 120px; }

/* -------------------- Rodapé -------------------- */
.ub-footer { background: var(--c-ink); color: var(--c-bg); margin-top: 3rem; }
.ub-footer-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 3rem 1.5rem 2rem;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 2.5rem;
}
.ub-footer-brand p { color: #a9a9a3; font-size: 0.9rem; margin-top: 0.6rem; max-width: 320px; }
.ub-footer .ub-wordmark { color: var(--c-bg); }
.ub-footer .ub-blue { color: #6fa0ff; }
.ub-footer-nav-list { display: flex; flex-direction: column; gap: 0.6rem; }
.ub-footer-nav-list a { color: #cfcfc8; font-size: 0.92rem; transition: color 0.2s ease; }
.ub-footer-nav-list a:hover { color: #fff; }
.ub-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  text-align: center; padding: 1.2rem; font-size: 0.8rem; color: #8f8f89;
}

/* -------------------- 404 -------------------- */
.ub-404 { text-align: center; padding: 4rem 0; }
.ub-404-code { font-family: var(--font-mono); color: var(--c-blue); font-size: 1.1rem; margin-bottom: 0.5rem; }
.ub-404 h1 { font-size: 2rem; }
.ub-404 form { max-width: 420px; margin: 1.5rem auto; }
.ub-404 .ub-btn { margin-top: 1rem; }

/* -------------------- Scroll reveal -------------------- */
.ub-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.ub-reveal.is-visible { opacity: 1; transform: translateY(0); }
.ub-grid .ub-reveal:nth-child(2) { transition-delay: 0.05s; }
.ub-grid .ub-reveal:nth-child(3) { transition-delay: 0.1s; }
.ub-grid .ub-reveal:nth-child(4) { transition-delay: 0.15s; }
.ub-grid .ub-reveal:nth-child(5) { transition-delay: 0.2s; }
.ub-grid .ub-reveal:nth-child(6) { transition-delay: 0.25s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ub-reveal { opacity: 1; transform: none; transition: none; }
  .ub-thumb img, .ub-progress-bar, .ub-ticker-track { transition: none; animation: none; }
}

/* -------------------- Responsivo -------------------- */
@media (max-width: 960px) {
  .ub-layout { grid-template-columns: 1fr; }
  .ub-grid { grid-template-columns: repeat(2, 1fr); }
  .ub-footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .ub-nav { display: none; }
  .ub-menu-toggle { display: flex; }
  .ub-grid, .ub-grid--3 { grid-template-columns: 1fr; }
  .ub-hero-media { aspect-ratio: 4/3; }
  .ub-footer-inner { grid-template-columns: 1fr; }
  .ub-mais-lidos-item { grid-template-columns: 20px 48px 1fr; }
}