:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #101820;
  --panel-2: #17222c;
  --ink: #f6f1e8;
  --muted: #9eacb8;
  --line: rgba(255, 255, 255, 0.09);
  --alarm: #ff4d42;
  --important: #f0aa36;
  --useful: #6dd5b3;
  --background: #7bb7ff;
  --noise: #6d7d8d;
  --accent: #6dd5b3;
  --blue: #7bb7ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(14, 24, 34, 0.9), var(--bg) 420px),
    var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  width: min(100%, 520px);
  min-height: 100vh;
  margin: 0 auto;
  padding: max(12px, env(safe-area-inset-top)) 14px max(26px, env(safe-area-inset-bottom));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0 12px;
  background: linear-gradient(180deg, rgba(11, 15, 20, 0.98), rgba(11, 15, 20, 0.82));
  backdrop-filter: blur(18px);
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 31px;
  line-height: 0.95;
  letter-spacing: 0;
}

.icon-button {
  min-width: 48px;
  height: 48px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 18px;
  font-weight: 900;
}

.icon-button span:last-child {
  font-size: 12px;
}

.icon-button.copied {
  background: rgba(109, 213, 179, 0.18);
  color: var(--accent);
}

.icon-button.shake {
  animation: shake 320ms ease;
}

.intro-panel {
  margin: 2px 0 10px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(109, 213, 179, 0.12), transparent 58%),
    var(--panel);
}

.intro-panel p {
  margin: 0 0 10px;
  color: #e5edf2;
  font-size: 14px;
  font-weight: 720;
  line-height: 1.35;
}

.intro-panel small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.status-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0 12px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 77, 66, 0.14), transparent 58%),
    var(--panel);
}

.status-label {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.status-panel strong {
  display: block;
  font-size: 17px;
  line-height: 1.2;
}

.status-panel small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}

.status-panel button:disabled {
  opacity: 0.48;
}

.status-panel button,
.filter,
.card-actions button,
.source-link {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.status-panel button {
  flex: 0 0 auto;
  padding: 10px 12px;
}

.filter-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 12px;
  scrollbar-width: none;
}

.filter-strip::-webkit-scrollbar {
  display: none;
}

.filter {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 8px 13px;
  color: var(--muted);
}

.filter.active {
  background: var(--ink);
  color: var(--bg);
}

.filter.alarm {
  color: #ffaaa4;
}

.filter.alarm.active {
  background: var(--alarm);
  color: white;
}

.filter.important {
  color: #ffd08a;
}

.filter.important.active {
  background: var(--important);
  color: #1d1304;
}

.filter.useful {
  color: var(--useful);
}

.filter.useful.active {
  background: var(--useful);
  color: #071812;
}

.feed {
  display: grid;
  gap: 12px;
}

.update-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
}

.update-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--noise);
}

.update-card.importance-alarm::before {
  background: var(--alarm);
}

.update-card.importance-important::before {
  background: var(--important);
}

.update-card.importance-useful::before {
  background: var(--useful);
}

.update-card.importance-background::before {
  background: var(--background);
}

.update-card.is-read {
  opacity: 0.66;
}

.update-card.is-starred {
  border-color: rgba(109, 213, 179, 0.55);
}

.card-main {
  display: grid;
  width: 100%;
  gap: 9px;
  padding: 15px 15px 14px 18px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: none;
}

.importance {
  color: var(--noise);
}

.importance-alarm .importance {
  color: #ffaaa4;
}

.importance-important .importance {
  color: #ffd08a;
}

.importance-useful .importance {
  color: var(--useful);
}

.importance-background .importance {
  color: #a9d2ff;
}

.read-state,
.saved-state {
  border-radius: 999px;
  padding: 3px 7px;
  background: rgba(255, 255, 255, 0.06);
}

.read-state {
  color: #ffaaa4;
}

.is-read .read-state {
  color: var(--blue);
}

.saved-state {
  min-width: 20px;
  color: var(--accent);
  text-align: center;
}

.saved-state:empty {
  display: none;
}

.category::before,
.date::before {
  content: "·";
  margin-right: 7px;
  color: rgba(255, 255, 255, 0.24);
}

.summary {
  display: block;
  font-size: 17px;
  font-weight: 790;
  line-height: 1.23;
}

.source {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.card-detail {
  display: none;
  padding: 0 15px 15px 18px;
}

.update-card.is-open .card-detail {
  display: block;
}

.detail-block {
  margin-bottom: 13px;
}

.detail-block span {
  display: block;
  margin-bottom: 5px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.plain,
.why,
.suggestion {
  margin: 0;
  color: #c8d1da;
  font-size: 15px;
  line-height: 1.45;
}

.plain {
  color: #f3f6f7;
  font-size: 16px;
}

.suggestion {
  color: #e9edf0;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 3px;
}

.card-actions button,
.source-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 8px 11px;
}

.star-btn {
  color: var(--accent) !important;
}

.read-btn {
  color: var(--blue) !important;
}

.copy-btn {
  color: #ffd08a !important;
}

.empty-state {
  margin: 44px 8px;
  color: var(--muted);
  text-align: center;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

@media (min-width: 700px) {
  body {
    background:
      radial-gradient(circle at 30% 0%, rgba(109, 213, 179, 0.16), transparent 28%),
      radial-gradient(circle at 75% 8%, rgba(255, 77, 66, 0.12), transparent 22%),
      var(--bg);
  }

  .app-shell {
    padding-top: 28px;
  }
}