:root {
  --bg: #f6f7f2;
  --surface: #ffffff;
  --surface-2: #eef2ea;
  --ink: #202621;
  --muted: #6e766e;
  --line: #dde3d8;
  --accent: #176f5d;
  --accent-2: #bd4b2f;
  --shadow: 0 18px 45px rgba(39, 48, 41, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(23, 111, 93, 0.08), transparent 320px),
    var(--bg);
  font-family: ui-serif, "Songti SC", "Noto Serif SC", Georgia, serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: end;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font: 800 12px/1.2 ui-monospace, "SFMono-Regular", Menlo, monospace;
  letter-spacing: 0.08em;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 58px);
  line-height: 1;
  letter-spacing: 0;
}

.subtitle {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.window-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 8px 24px rgba(39, 48, 41, 0.05);
}

.window-switch a {
  min-width: 54px;
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--muted);
  font: 800 13px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
  text-align: center;
}

.window-switch form {
  margin: 0;
}

.window-switch button {
  min-width: 54px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  padding: 10px 12px;
  color: var(--muted);
  cursor: pointer;
  font: 800 13px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.window-switch a.active {
  background: var(--ink);
  color: #fff;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  width: min(430px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.login-card {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  padding: 28px;
}

.login-card h1 {
  font-size: 38px;
  margin-bottom: 22px;
}

.login-card form {
  display: grid;
  gap: 15px;
}

.login-card label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.login-card input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px 13px;
  font: 16px/1.2 ui-sans-serif, system-ui, sans-serif;
}

.login-card button {
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  padding: 13px 16px;
  cursor: pointer;
  font: 900 15px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.login-error {
  margin: 0;
  color: var(--accent-2);
  font-size: 14px;
  line-height: 1.5;
}

.icp-footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font: 12px/1.5 ui-sans-serif, system-ui, sans-serif;
}

.icp-footer a {
  color: inherit;
  text-decoration: none;
}

.icp-footer a:hover {
  color: var(--accent);
}

.category-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 2px 14px;
  margin: 0 -2px 6px;
  scrollbar-width: none;
}

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

.category-strip a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  padding: 10px 13px;
  color: var(--muted);
  font: 800 14px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.category-strip a.active {
  border-color: rgba(23, 111, 93, 0.36);
  background: var(--accent);
  color: #fff;
}

.category-strip small {
  display: inline-grid;
  place-items: center;
  min-width: 21px;
  height: 21px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--accent);
  font-size: 11px;
}

.category-strip a.active small {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.brief {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0 16px;
}

.brief div {
  min-height: 82px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  padding: 15px 16px;
  box-shadow: 0 10px 28px rgba(39, 48, 41, 0.04);
}

.brief strong {
  display: block;
  font: 900 27px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.brief span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.3;
}

.view-toggle {
  display: flex;
  justify-content: flex-end;
  margin: 0 0 14px;
}

.view-toggle a {
  border: 1px solid rgba(23, 111, 93, 0.28);
  border-radius: 8px;
  background: #e8f1ed;
  color: var(--accent);
  padding: 9px 13px;
  font: 800 13px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

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

.hot-item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.rank {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfcf8, #eef3eb);
  padding: 14px 8px;
}

.rank span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font: 900 15px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.rank small {
  color: var(--accent-2);
  font: 800 11px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.content {
  min-width: 0;
  padding: 16px 18px;
}

.summary-link {
  display: block;
  margin: -8px -10px 10px;
  border-radius: 8px;
  padding: 8px 10px 10px;
  color: inherit;
  transition:
    background 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.summary-link:hover,
.summary-link:focus-visible {
  background: #f3f7f1;
  box-shadow: inset 0 0 0 1px rgba(23, 111, 93, 0.14);
}

.summary-link:focus-visible {
  outline: 2px solid rgba(23, 111, 93, 0.55);
  outline-offset: 2px;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font: 800 12px/1.2 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.meta span {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.item-title {
  display: block;
  margin: 8px 0 13px;
  color: var(--ink);
  font-weight: 900;
  font-size: clamp(19px, 3vw, 27px);
  line-height: 1.28;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.summary-link:hover .item-title,
.summary-link:focus-visible .item-title {
  color: var(--accent);
}

.summary {
  display: block;
  margin: -3px 0 13px;
  color: #4f5b52;
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.links {
  display: grid;
  gap: 7px;
}

.links a {
  display: block;
  border-top: 1px solid var(--line);
  padding-top: 9px;
  color: #364038;
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.links a:hover {
  color: var(--accent);
}

.links span {
  color: var(--accent);
  font-weight: 900;
  margin-right: 8px;
}

.empty {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 28px;
  box-shadow: var(--shadow);
}

.empty p {
  margin: 8px 0 0;
  color: var(--muted);
}

.detail-shell {
  max-width: 860px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  padding: 10px 13px;
  color: var(--accent);
  font: 800 13px/1 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.detail-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: clamp(20px, 4vw, 34px);
  box-shadow: var(--shadow);
}

.detail-card h1 {
  max-width: 780px;
  margin: 10px 0 22px;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.12;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font: 800 12px/1.2 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.summary-panel,
.source-panel {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 18px;
}

.summary-panel h2,
.source-panel h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

.summary-panel p {
  margin: 0;
  color: #354139;
  font-size: 18px;
  line-height: 1.8;
}

.ai-summary {
  display: grid;
  gap: 12px;
}

.ai-summary p {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcf8;
  padding: 13px 14px;
}

.ai-summary strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font: 900 13px/1.2 ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.source-list {
  display: grid;
  gap: 10px;
}

.source-list a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 12px 14px;
  line-height: 1.55;
}

.source-list a:hover {
  border-color: rgba(23, 111, 93, 0.34);
  color: var(--accent);
}

.source-list span {
  color: var(--accent);
  font-weight: 900;
  margin-right: 8px;
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 22px, 540px);
    padding: 20px 0 42px;
  }

  .topbar {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .window-switch {
    width: 100%;
  }

  .window-switch a {
    flex: 1;
  }

  .brief {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .brief div {
    min-height: 74px;
    padding: 12px 10px;
  }

  .brief strong {
    font-size: 22px;
  }

  .brief span {
    font-size: 12px;
  }

  .hot-item {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .rank span {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }

  .rank small {
    font-size: 10px;
  }

  .content {
    padding: 14px;
  }
}