:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: rgba(15, 23, 42, 0.82);
  --panel-subtle: rgba(30, 41, 59, 0.72);
  --text: #e5eefb;
  --muted: #a8b3c7;
  --accent: #67e8f9;
  --accent-strong: #22d3ee;
  --border: rgba(148, 163, 184, 0.28);
  --success: #86efac;
  --warning: #fca5a5;
  --shadow: 0 20px 60px rgba(2, 6, 23, 0.35);
  --app-bg-solid: #020617;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html {
  min-height: 100%;
  background: var(--app-bg-solid);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  background-color: var(--app-bg-solid);
  background-image:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.24), transparent 34rem),
    linear-gradient(135deg, #020617 0%, var(--bg) 52%, #111827 100%);
  color: var(--text);
  overscroll-behavior-y: none;
}

a { color: inherit; }

.hero {
  padding: calc(1.25rem + env(safe-area-inset-top, 0px)) clamp(1rem, 4vw, 4rem) 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 72rem;
  margin: 0 auto 3rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-decoration: none;
  font-size: 1.3rem;
}

.brand img {
  border-radius: 0.8rem;
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.35);
}

.topbar__actions {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover { color: var(--text); }

.hero__content,
main,
footer {
  width: min(72rem, calc(100% - 2rem));
  margin-inline: auto;
}

.hero__content h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.06em;
}

.hero__content h1 a {
  color: inherit;
  text-decoration: none;
}

.hero__content h1 a:hover,
.hero__content h1 a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.08em;
}

#heroSummary {
  max-width: 56rem;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.7;
}

#heroMeta {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1rem;
  border: 1px solid rgba(103, 232, 249, 0.5);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: rgba(34, 211, 238, 0.12);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.button:hover { background: rgba(34, 211, 238, 0.2); }
.button--compact {
  margin-top: 0;
  padding: 0.45rem 0.8rem;
  font-size: 0.85rem;
}

.button--utility {
  flex: 0 0 auto;
  border-color: var(--border);
  padding-inline: 0.65rem;
  background: rgba(15, 23, 42, 0.42);
  color: var(--muted);
}

.button--utility:hover,
.button--utility:focus-visible {
  border-color: rgba(103, 232, 249, 0.5);
  background: rgba(34, 211, 238, 0.12);
  color: var(--text);
}

.eyebrow {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

main {
  display: grid;
  gap: 1rem;
  padding-bottom: 3rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 3vw, 2rem);
  backdrop-filter: blur(16px);
}

.card--subtle { background: var(--panel-subtle); }

.card h2 {
  margin: 0.2rem 0 1rem;
  font-size: clamp(1.6rem, 4vw, 3rem);
  letter-spacing: -0.05em;
}

#yesterday h2,
#sources h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  line-height: 1.18;
  letter-spacing: 0;
}

.meta,
.source-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.provider-note {
  color: var(--muted);
  font-size: 0.85rem;
}

.section {
  margin-top: 1.5rem;
}

.briefing-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.briefing-header .meta {
  margin: 0;
}

.briefing-meta {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem 0;
}

.briefing-meta__generated::before {
  content: "·";
  margin: 0 0.5rem;
}

.briefing-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.active-filter {
  color: var(--muted);
  font-size: 0.85rem;
}

.filter-empty {
  margin: 1rem 0 0;
  color: var(--muted);
}

.section h3 {
  margin-bottom: 0.75rem;
}

.bullet-list {
  display: grid;
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}

.bullet {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.5);
  transition:
    opacity 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.bullet--hot { border-color: rgba(248, 113, 113, 0.72); }
.bullet--warm { border-color: rgba(251, 191, 36, 0.62); }
.bullet--seen {
  opacity: 0.72;
  background: rgba(15, 23, 42, 0.35);
}
.bullet--hidden { display: none; }
.bullet--filtered { display: none; }
.section--filtered-empty { display: none; }

.bullet[data-primary-url] {
  cursor: pointer;
}

.bullet[data-primary-url]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.bullet[data-primary-url]:hover h4,
.bullet[data-primary-url]:focus-visible h4 {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.bullet__heading {
  display: flex;
  align-items: flex-start;
  padding-right: 5.25rem;
  gap: 0.55rem;
}

.bullet h4 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.bullet--hot h4 { color: #fecaca; }
.bullet--warm h4 { color: #fde68a; }

.bullet__status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.4rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bullet__status--new {
  color: var(--accent);
  background: rgba(34, 211, 238, 0.12);
}

.bullet__status--seen {
  color: var(--muted);
  background: rgba(148, 163, 184, 0.08);
}

.temperature {
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  font-size: 0.9rem;
  line-height: 1;
}

.temperature--hot { box-shadow: 0 0 24px rgba(248, 113, 113, 0.28); }
.temperature--warm { box-shadow: 0 0 24px rgba(251, 191, 36, 0.22); }

.bullet p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.citations {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(103, 232, 249, 0.2);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  background: rgba(103, 232, 249, 0.08);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tag--button,
.source-filter {
  cursor: pointer;
  font: inherit;
}

.tag--button:hover,
.tag--button:focus-visible,
.source-filter:hover,
.source-filter:focus-visible,
.tag--button[aria-pressed="true"],
.source-filter[aria-pressed="true"] {
  border-color: rgba(103, 232, 249, 0.5);
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.source-filter {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-weight: 800;
}

.citation,
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
}

.citation:hover,
.citation:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.status { color: var(--success); }
.status--bad { color: var(--warning); }

.source-list {
  display: grid;
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}

.source-item {
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.5);
}

.source-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.source-title {
  line-height: 1.3;
  text-align: left;
}

.source-heading .status {
  flex: 0 0 auto;
}

.source-meta {
  margin: 0.55rem 0 0;
  line-height: 1.55;
}

.yesterday-summary p { margin-bottom: 0; }

.date-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(4.5rem, 1fr));
  gap: 0.45rem;
}

.date-picker__day {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.6rem;
  background: rgba(15, 23, 42, 0.48);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
}

.date-picker__day:hover,
.date-picker__day:focus-visible,
.date-picker__day--selected {
  border-color: rgba(103, 232, 249, 0.55);
  background: rgba(34, 211, 238, 0.14);
}

.date-picker__day:disabled {
  border-color: rgba(148, 163, 184, 0.16);
  background: rgba(15, 23, 42, 0.24);
  color: rgba(168, 179, 199, 0.45);
  cursor: not-allowed;
}

.site-footer {
  color: var(--muted);
  display: grid;
  justify-items: center;
  gap: 0.65rem;
  padding: 0 0 calc(2rem + env(safe-area-inset-bottom, 0px));
  text-align: center;
}

.site-footer p { margin: 0; }

.github-star {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.65rem;
}

.github-star-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  background: rgba(15, 23, 42, 0.5);
}

@media (width >= 900px) {
  main {
    grid-template-columns: minmax(0, 2fr) minmax(18rem, 1fr);
    grid-template-rows: auto 1fr;
  }
  #briefing { grid-row: 1 / span 2; }
  #sources { grid-row: 2; }
}

@media (width < 720px) {
  .topbar {
    gap: 0.75rem;
    margin-bottom: 2.5rem;
  }
}