:root {
  color-scheme: light dark;
  --bg: #f6f5f0;
  --panel: #fffef9;
  --text: #1f1f1f;
  --muted: #5c5c5c;
  --accent: #3d6b4f;
  --border: #ddd8c8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1b1b;
    --panel: #242424;
    --text: #ececec;
    --muted: #a8a8a8;
    --accent: #7ec89a;
    --border: #3a3a3a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
}

#logout-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
}

.panel {
  max-width: 1400px;
  margin: 1.5rem auto;
  padding: 0 1rem;
}

.workspace {
  display: grid;
  grid-template-columns: 200px 280px minmax(0, 1fr) 220px;
  gap: 0.75rem;
  min-height: 70vh;
}

.panel-col {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  min-height: 0;
}

.panel-col h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.status-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.status-tabs .tab {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
}

.status-tabs .tab.active {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  border-color: var(--accent);
}

.tag-mode-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.tag-mode-tabs .tag-mode {
  flex: 1;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  text-align: center;
}

.tag-mode-tabs .tag-mode.active {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  border-color: var(--accent);
}

.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}

.tag-btn.selected {
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  border-color: var(--accent);
}

.filter-actions {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.filter-actions button {
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--muted);
  padding: 0.3rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

#session-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: calc(70vh - 2rem);
  overflow-y: auto;
}

#session-list li {
  margin-bottom: 0.35rem;
}

#session-list button {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--text);
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.session-title {
  font-weight: 600;
  font-size: 0.9rem;
}

.session-date {
  font-size: 0.75rem;
  color: var(--muted);
}

#session-list button:hover,
#session-list button.active {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.detail-header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

#planka-link {
  border: 1px solid var(--border);
  color: var(--accent);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  text-decoration: none;
}

#planka-link:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

#telegram-ping-btn,
#archive-btn {
  border: 1px solid var(--border);
  background: transparent;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
}

#telegram-ping-btn:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.new-tag-form {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.new-tag-form input {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.5rem;
  background: transparent;
  color: var(--text);
}

.new-tag-form button {
  border: 1px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--text);
  padding: 0.4rem;
  border-radius: 6px;
  cursor: pointer;
}

.markdown-body {
  line-height: 1.55;
}

.markdown-body h1,
.markdown-body h2 {
  margin-top: 1.2rem;
}

.markdown-body img {
  max-width: min(220px, 100%);
  max-height: 220px;
  border-radius: 6px;
  border: 1px solid var(--border);
  object-fit: cover;
  margin: 0.15rem 0.35rem 0.15rem 0;
  vertical-align: top;
}

.media-gallery {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.75rem 0 1rem;
}

.media-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.media-caption {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.media-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.media-item {
  margin: 0;
}

.media-item img {
  max-width: min(260px, 100%);
  max-height: 260px;
  border-radius: 6px;
  border: 1px solid var(--border);
  object-fit: cover;
}

.markdown-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 0.5rem 0;
  padding-left: 0.75rem;
  color: var(--muted);
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
  }
  #filters {
    grid-column: 1 / -1;
  }
  #assign-tags {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}