:root {
  --bg: #0f1419;
  --panel: #1a1f2e;
  --panel-2: #21273a;
  --text: #ecf2ff;
  --muted: #9da8c0;
  --aws-orange: #ff9900;
  --electric-blue: #147efb;
  --architecture-violet: #8a5dff;
  --security-green: #39d98a;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(1200px circle at 20% -20%, rgba(20, 126, 251, 0.14), transparent 45%),
    radial-gradient(1000px circle at 80% -30%, rgba(255, 153, 0, 0.13), transparent 45%),
    var(--bg);
  color: var(--text);
}

.breaking-news-ticker {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(90deg, rgba(255, 153, 0, 0.2), rgba(20, 126, 251, 0.2)), var(--panel);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.ticker-label {
  flex: 0 0 auto;
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 800;
  color: #fff;
  background: rgba(255, 153, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
}

.ticker-track {
  flex: 1 1 auto;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-track span {
  display: inline-block;
  padding-left: 100%;
  font-size: 0.9rem;
  color: #e8f0ff;
  white-space: nowrap;
  animation: breakingTicker 34s linear infinite;
}

.page-bg-glow {
  position: fixed;
  inset: -30vh -20vw auto;
  height: 60vh;
  background: linear-gradient(90deg, rgba(255, 153, 0, 0.06), rgba(20, 126, 251, 0.06));
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.app-shell {
  position: relative;
  z-index: 1;
  max-width: 1160px;
  margin: 0 auto;
  padding: 2rem 1rem 2.5rem;
}

.app-header {
  margin-bottom: 1.25rem;
}

.brand {
  background: linear-gradient(140deg, rgba(26, 31, 46, 0.9), rgba(26, 31, 46, 0.65));
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.95rem;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  background: linear-gradient(135deg, rgba(255, 153, 0, 0.25), rgba(20, 126, 251, 0.25));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  letter-spacing: 0.015em;
}

.brand p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.filters {
  margin: 0.8rem 0 1.2rem;
}

.tabs-scroll {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding-bottom: 0.45rem;
}

.tabs-scroll::-webkit-scrollbar {
  height: 8px;
}

.tabs-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 99px;
}

.tabs-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, rgba(255, 153, 0, 0.85), rgba(20, 126, 251, 0.85));
  border-radius: 99px;
}

.tab {
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: var(--panel);
  color: var(--text);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
  font-weight: 600;
}

.tab .count {
  font-size: 0.78rem;
  color: var(--muted);
}

.tab:hover {
  transform: translateY(-1px);
  border-color: rgba(20, 126, 251, 0.45);
}

.tab.active {
  background: linear-gradient(120deg, rgba(255, 153, 0, 0.22), rgba(20, 126, 251, 0.22));
  border-color: rgba(255, 255, 255, 0.26);
}

.tab.active .count {
  color: #fff;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.95rem;
}

.news-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 210px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(150deg, rgba(33, 39, 58, 0.95), rgba(26, 31, 46, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 126, 251, 0.45);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.42);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.8rem;
}

.external-indicator {
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  color: var(--electric-blue);
  font-weight: 700;
}

.news-card:hover .external-indicator {
  opacity: 1;
  transform: translateX(0);
}

.source-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.source-whatsnew {
  background: rgba(255, 153, 0, 0.2);
  color: #ffbe56;
}

.source-news {
  background: rgba(20, 126, 251, 0.2);
  color: #7bb4ff;
}

.source-architecture {
  background: rgba(138, 93, 255, 0.2);
  color: #b79aff;
}

.source-security {
  background: rgba(57, 217, 138, 0.2);
  color: #80f1b5;
}

.source-ml {
  background: rgba(255, 87, 51, 0.2);
  color: #ff9980;
}

.source-containers {
  background: rgba(0, 188, 212, 0.2);
  color: #67e8f9;
}

.source-devtools {
  background: rgba(156, 204, 101, 0.2);
  color: #b5f59d;
}

.source-default {
  background: rgba(255, 255, 255, 0.15);
}

.news-card h2 {
  margin: 0.1rem 0 0.55rem;
  font-size: clamp(1rem, 2vw, 1.12rem);
  line-height: 1.35;
  font-weight: 700;
}

.news-card p {
  margin: 0;
  color: #ccd6eb;
  font-size: 0.95rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  margin-top: 0.9rem;
}

.card-meta time {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
}

.app-footer {
  margin-top: 1.1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.84rem;
}

.app-footer a {
  color: var(--electric-blue);
  text-decoration: none;
}

.app-footer a:hover,
.app-footer a:focus-visible {
  text-decoration: underline;
  outline: 2px solid var(--electric-blue);
  outline-offset: 2px;
}

.search-bar {
  margin: 0 0 1rem;
}

.search-bar input {
  width: 100%;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--panel);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-bar input::placeholder {
  color: var(--muted);
}

.search-bar input:focus {
  border-color: rgba(20, 126, 251, 0.6);
  box-shadow: 0 0 0 3px rgba(20, 126, 251, 0.15);
}

.badge-group {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.badge-new {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.18rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(57, 217, 138, 0.25);
  color: #80f1b5;
  border: 1px solid rgba(57, 217, 138, 0.35);
  animation: pulse-new 2s ease-in-out infinite;
}

@keyframes pulse-new {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

mark {
  background: rgba(255, 153, 0, 0.3);
  color: #ffd580;
  border-radius: 3px;
  padding: 0 2px;
}

.empty-state {
  grid-column: 1 / -1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.4rem;
  background: var(--panel);
}

.empty-state h2 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
}

.empty-state p {
  margin: 0;
  color: var(--muted);
}

.fade-up {
  opacity: 0;
  transform: translateY(8px);
  animation: fadeUp 0.42s ease forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.skeleton {
  pointer-events: none;
}

.skeleton-line {
  height: 12px;
  border-radius: 999px;
  margin: 0.58rem 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.06));
  background-size: 200% 100%;
  animation: shimmer 1.2s linear infinite;
}

.skeleton-line.short {
  width: 38%;
}

.skeleton-line.medium {
  width: 56%;
}

.skeleton-line.long {
  width: 92%;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@keyframes breakingTicker {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

@media (max-width: 840px) {
  .app-shell {
    padding: 1.1rem 0.85rem 2rem;
  }

  .news-card {
    min-height: 195px;
  }
}

@media (max-width: 560px) {
  .brand {
    padding: 0.95rem;
  }

  .brand-icon {
    width: 40px;
    height: 40px;
  }

  .news-card {
    min-height: 180px;
    padding: 0.9rem;
  }
}

* {
  scrollbar-width: thin;
  scrollbar-color: rgba(20, 126, 251, 0.8) rgba(255, 255, 255, 0.05);
}