:root {
  color-scheme: light;
  --ink: #152326;
  --muted: #536467;
  --line: rgba(21, 35, 38, 0.16);
  --cloud: #f3f7f6;
  --panel: #fffdf8;
  --teal: #2a777c;
  --teal-soft: #dcefed;
  --coral: #b55446;
  --coral-soft: #f2d9d3;
  --gold: #c78c22;
  --gold-soft: #f2e6c9;
  --blue: #496a9a;
  --blue-soft: #dde6f4;
  --shadow: 0 18px 40px rgba(21, 35, 38, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--cloud);
  color: var(--ink);
}

button,
input,
textarea {
  font: inherit;
}

button,
.top-actions a {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 8px 11px;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
}

button:hover,
.top-actions a:hover {
  border-color: var(--teal);
}

.app-shell {
  min-height: 100vh;
  padding-bottom: calc(82px + env(safe-area-inset-bottom));
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  min-height: 70px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 247, 246, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font-weight: 950;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

.top-actions {
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: min(1320px, calc(100% - 24px));
  margin: 14px auto 0;
}

.status-strip div {
  min-height: 70px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.9);
}

.status-strip strong,
.status-strip span {
  display: block;
}

.status-strip strong {
  color: var(--teal);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.status-strip span {
  margin-top: 5px;
  color: var(--muted);
  font-weight: 850;
}

.storage-notice {
  width: min(1320px, calc(100% - 24px));
  margin: 10px auto 0;
  padding: 11px 13px;
  border: 1px solid var(--coral);
  border-radius: 8px;
  background: var(--coral-soft);
  color: #74362d;
  font-weight: 800;
  line-height: 1.45;
}

.storage-notice[hidden] {
  display: none;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 14px;
  width: min(1320px, calc(100% - 24px));
  margin: 14px auto 0;
}

.library-panel,
.detail-panel {
  min-height: calc(100vh - 170px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.9);
  box-shadow: var(--shadow);
}

.library-panel {
  display: grid;
  grid-template-rows: auto auto auto 1fr;
  gap: 12px;
  padding: 14px;
}

.search-block,
.import-form label,
.edit-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

input {
  min-height: 44px;
  padding: 9px 11px;
}

textarea {
  min-height: 150px;
  padding: 11px;
  resize: vertical;
}

.filter-row,
.stats-row,
.reader-tools,
.summary-modes,
.selected-actions,
.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-row button.active,
.bottom-tabs button.active,
.summary-modes button.active,
.reader-tools button.active {
  border-color: var(--coral);
  background: var(--coral-soft);
  color: var(--coral);
}

.stats-row span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.conversation-list,
.message-stream,
.search-results {
  display: grid;
  gap: 10px;
}

.conversation-card {
  display: grid;
  gap: 9px;
  width: 100%;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: left;
}

.conversation-card.active {
  border-color: var(--teal);
  background: var(--teal-soft);
}

.conversation-card strong,
.message-card strong {
  display: block;
}

.conversation-card p,
.message-card p,
.muted,
[data-summary] {
  margin: 0;
  color: var(--muted);
  line-height: 1.48;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-row span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 4px 7px;
  border-radius: 8px;
  background: var(--gold-soft);
  color: #78510c;
  font-size: 0.72rem;
  font-weight: 850;
}

.detail-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
}

.detail-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: start;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 2rem;
  line-height: 1.08;
}

h2 {
  font-size: 1.35rem;
}

.tab-content {
  display: grid;
  gap: 14px;
  align-content: start;
  min-height: 0;
  padding: 18px;
  overflow: auto;
}

.tab-content[hidden] {
  display: none;
}

.message-card {
  display: grid;
  gap: 7px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.message-card.mine {
  background: #f7fbff;
}

.swipe-card {
  min-height: 320px;
  align-content: center;
}

.swipe-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

.timeline-message {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
}

.timeline-message .step {
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--teal-soft);
  color: var(--teal);
  font-weight: 950;
}

.tag-map {
  display: grid;
  gap: 12px;
}

.tag-map-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.import-form,
.edit-form,
.file-import-card {
  display: grid;
  gap: 12px;
  max-width: 760px;
}

.file-import-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.file-import-card label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.file-import-card input {
  padding: 9px;
}

[data-export] {
  min-height: 340px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
}

.ai-panel {
  scroll-margin-top: 90px;
}

.ai-output {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.ai-output ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.5;
}

.export-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.export-presets button.active {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.bottom-tabs {
  position: fixed;
  left: 50%;
  bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 12;
  display: flex;
  width: min(720px, calc(100% - 24px));
  gap: 6px;
  justify-content: center;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.93);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
  overflow-x: auto;
}

.bottom-tabs button {
  flex: 1 0 82px;
  min-height: 48px;
}

@media (max-width: 920px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .status-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .library-panel,
  .detail-panel {
    min-height: auto;
  }

  .conversation-list {
    max-height: min(48vh, 520px);
    overflow: auto;
    overscroll-behavior: contain;
  }

  .detail-head {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand span {
    display: none;
  }

  .app-topbar {
    min-height: 62px;
  }

  h1 {
    font-size: 1.55rem;
  }

  .top-actions a,
  .top-actions button {
    min-width: 44px;
  }

  .top-actions {
    min-width: 0;
  }

  .status-strip {
    grid-template-columns: 1fr;
  }

  .timeline-message {
    grid-template-columns: 1fr;
  }

  .bottom-tabs {
    width: calc(100% - 16px);
    justify-content: flex-start;
  }
}