/* ═══════════════════════════════════════════════════════════════════════════
   /ai-news — Top 20 highlights diários
   Reutiliza tokens e nav/footer de ../styles.css
═══════════════════════════════════════════════════════════════════════════ */

.ai-news-body { padding-top: var(--nav-h); }

/* ─── HERO ──────────────────────────────────────────────────────────────── */
.news-hero {
  position: relative;
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--clr-border);
}

.news-hero .hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 0;
}
.news-hero-inner { position: relative; z-index: 1; }

.news-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-block: 1rem 1.25rem;
  color: #fff;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  align-items: center;
  margin-bottom: 1.75rem;
  font-size: .9rem;
  color: rgba(226,232,240,.85);
}
.news-meta-item { display: inline-flex; align-items: center; gap: .4rem; }
.meta-label {
  font-family: var(--ff-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(226,232,240,.5);
}

.live-pill {
  background: rgba(6,182,212,.12);
  border: 1px solid rgba(6,182,212,.35);
  color: var(--clr-accent);
  padding: .15rem .65rem;
  border-radius: 99px;
  font-family: var(--ff-mono);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.live-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  margin-right: .35rem;
  animation: live-pulse 1.6s ease-in-out infinite;
}
@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .4; transform: scale(.8); }
}

/* ─── CONTROLS (date picker + nav) ──────────────────────────────────────── */
.news-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: .6rem;
  padding: .85rem 1rem;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  backdrop-filter: blur(8px);
}

.news-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .55rem .9rem;
  font-size: .85rem;
  font-weight: 500;
  color: rgba(226,232,240,.85);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  transition: background .2s, border-color .2s, color .2s, transform .15s;
}
.news-nav-btn:hover:not(:disabled) {
  background: rgba(139,92,246,.12);
  border-color: var(--clr-border-hi);
  color: #fff;
}
.news-nav-btn:active:not(:disabled) { transform: translateY(1px); }
.news-nav-btn:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.news-today-btn {
  background: var(--gradient-bg);
  color: #fff;
  border-color: transparent;
  font-weight: 600;
}
.news-today-btn:hover:not(:disabled) {
  background: var(--gradient-bg);
  color: #fff;
  opacity: .9;
}

.news-date-picker {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.news-date-picker input[type="date"] {
  padding: .5rem .7rem;
  background: rgba(0,0,0,.35);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: #fff;
  font-family: var(--ff-mono);
  font-size: .85rem;
  color-scheme: dark;
  min-width: 11rem;
}
.news-date-picker input[type="date"]:focus {
  outline: none;
  border-color: var(--clr-purple-lt);
  box-shadow: 0 0 0 3px rgba(139,92,246,.18);
}

/* ─── LAYOUT ────────────────────────────────────────────────────────────── */
.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-block: clamp(2rem, 4vw, 3rem) clamp(3rem, 6vw, 5rem);
  align-items: start;
}

/* ─── LIST HEADER + FILTER ──────────────────────────────────────────────── */
.news-list-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.news-list-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.01em;
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}
.filter-chip {
  font-family: var(--ff-mono);
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .35rem .7rem;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--clr-border);
  border-radius: 99px;
  color: rgba(226,232,240,.6);
  transition: color .2s, border-color .2s, background .2s;
}
.filter-chip:hover { color: #fff; border-color: var(--clr-border-hi); }
.filter-chip.active {
  color: #fff;
  background: rgba(139,92,246,.15);
  border-color: var(--clr-purple-lt);
}

/* ─── NEWS CARDS ────────────────────────────────────────────────────────── */
.news-list {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  counter-reset: news;
}

.news-card {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  transition: border-color .2s, transform .2s, background .2s, box-shadow .25s;
}
.news-card:hover {
  border-color: var(--clr-border-hi);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px -8px rgba(139,92,246,.25);
  background: var(--clr-surface2);
}

.news-rank {
  font-family: var(--ff-mono);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  padding-top: .15rem;
  text-align: center;
}

.news-content { min-width: 0; }

.news-headline {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: #fff;
  margin-bottom: .45rem;
  letter-spacing: -.005em;
}
.news-headline a {
  color: inherit;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size .25s;
}
.news-headline a:hover {
  background-size: 100% 1px;
}

.news-summary {
  font-size: .92rem;
  line-height: 1.55;
  color: rgba(226,232,240,.78);
  margin-bottom: .75rem;
}

.news-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .9rem;
  font-size: .78rem;
  color: rgba(226,232,240,.55);
}

.news-source {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: rgba(226,232,240,.85);
  font-weight: 500;
}
.news-source-icon {
  width: 14px; height: 14px;
  border-radius: 3px;
  background: rgba(139,92,246,.25);
  display: grid; place-items: center;
  font-family: var(--ff-mono);
  font-size: .55rem;
  font-weight: 700;
  color: var(--clr-purple-lt);
}

.news-time {
  font-family: var(--ff-mono);
  font-size: .72rem;
}

.news-tag {
  font-family: var(--ff-mono);
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .15rem .55rem;
  border-radius: 99px;
  background: rgba(59,130,246,.12);
  border: 1px solid rgba(59,130,246,.3);
  color: var(--clr-blue-lt);
}
.news-tag[data-tag="modelos"]    { background: rgba(139,92,246,.13); border-color: rgba(139,92,246,.32); color: var(--clr-purple-lt); }
.news-tag[data-tag="produtos"]   { background: rgba(6,182,212,.12);  border-color: rgba(6,182,212,.32);  color: var(--clr-accent); }
.news-tag[data-tag="pesquisa"]   { background: rgba(59,130,246,.12); border-color: rgba(59,130,246,.32); color: var(--clr-blue-lt); }
.news-tag[data-tag="negocios"]   { background: rgba(34,197,94,.12);  border-color: rgba(34,197,94,.32);  color: #4ade80; }
.news-tag[data-tag="regulacao"]  { background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.32); color: #fbbf24; }
.news-tag[data-tag="open-source"]{ background: rgba(244,114,182,.12);border-color: rgba(244,114,182,.32);color: #f472b6; }

.news-lang-badge {
  font-family: var(--ff-mono);
  font-size: .62rem;
  font-weight: 600;
  letter-spacing: .03em;
  padding: .12rem .5rem;
  border-radius: 99px;
  background: rgba(226,232,240,.06);
  border: 1px solid rgba(226,232,240,.18);
  color: rgba(226,232,240,.45);
}

.news-empty {
  padding: 3rem 1rem;
  text-align: center;
  color: rgba(226,232,240,.55);
  border: 1px dashed var(--clr-border);
  border-radius: var(--r-md);
}

/* ─── SIDEBAR ───────────────────────────────────────────────────────────── */
.news-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 1rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sidebar-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  padding: 1.1rem 1.25rem;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .15rem;
}
.sidebar-sub {
  font-size: .78rem;
  color: rgba(226,232,240,.5);
  margin-bottom: .85rem;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  max-height: 360px;
  overflow-y: auto;
  padding-right: .25rem;
}
.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .55rem .65rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  font-size: .85rem;
  color: rgba(226,232,240,.78);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.history-item:hover {
  background: rgba(255,255,255,.04);
  color: #fff;
  border-color: var(--clr-border);
}
.history-item.active {
  background: rgba(139,92,246,.12);
  border-color: var(--clr-purple-lt);
  color: #fff;
}
.history-item .history-date {
  font-family: var(--ff-mono);
  font-size: .82rem;
}
.history-item .history-day {
  font-size: .72rem;
  color: rgba(226,232,240,.5);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.history-item.active .history-day { color: rgba(255,255,255,.7); }

.show-more-btn {
  margin-top: .65rem;
  width: 100%;
  padding: .5rem;
  font-size: .8rem;
  font-weight: 500;
  color: var(--clr-purple-lt);
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  transition: background .2s, border-color .2s;
}
.show-more-btn:hover {
  background: rgba(139,92,246,.08);
  border-color: var(--clr-border-hi);
}

.sidebar-card-info { background: var(--clr-surface2); }
.info-eyebrow {
  font-family: var(--ff-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-purple-lt);
  margin-bottom: .55rem;
}
.info-text {
  font-size: .88rem;
  line-height: 1.55;
  color: rgba(226,232,240,.78);
  margin-bottom: .85rem;
}
.info-text strong { color: #fff; }
.info-sources {
  font-size: .78rem;
  line-height: 1.6;
  color: rgba(226,232,240,.6);
}

/* ─── RESPONSIVE ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .news-layout { grid-template-columns: 1fr; }
  .news-sidebar { position: static; }
  .history-list { max-height: 240px; }
  .news-card { grid-template-columns: 44px 1fr; gap: .75rem; padding: 1rem; }
  .news-rank { font-size: 1.4rem; }
  .news-headline { font-size: 1rem; }
  .news-list-header { gap: .75rem; }
  .news-list-title { font-size: 1.15rem; }
}
@media (max-width: 640px) {
  .news-controls { padding: .75rem; }
  .news-nav-btn { padding: .5rem .7rem; font-size: .8rem; }
  .news-date-picker input[type="date"] { min-width: 9.5rem; }
  .news-meta { gap: .6rem 1.2rem; font-size: .82rem; }
  .news-card { padding: .85rem; }
  .news-summary { font-size: .87rem; }
}
@media (max-width: 400px) {
  .news-card { grid-template-columns: 36px 1fr; }
  .news-rank { font-size: 1.2rem; }
}

/* ─── ERRO DE CARREGAMENTO ──────────────────────────────────────────────── */
#load-error {
  max-width: 540px;
  margin: 5rem auto;
  padding: 2.5rem 2rem;
  text-align: center;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  background: var(--clr-surface2);
}
.load-error-msg {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: .75rem;
}
.load-error-sub {
  font-size: .9rem;
  line-height: 1.6;
  color: rgba(226,232,240,.65);
}
.load-error-sub strong { color: rgba(226,232,240,.9); }

/* ─── News card thumbnail ───────────────────────────────────────────────── */
.news-thumb-link {
  display: block;
  margin-bottom: 0.75rem;
  border-radius: var(--r-sm, 6px);
  overflow: hidden;
  line-height: 0;
}
.news-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--r-sm, 6px);
  background: rgba(255,255,255,.05);
  transition: opacity 0.2s ease;
}
.news-thumb-link:hover .news-thumb {
  opacity: 0.85;
}