:root {
  color-scheme: light;
  --bg: #e9e2d6;
  --bg-deep: #d9cfc0;
  --panel: #f7f3eb;
  --ink: #221c17;
  --muted: #6f675d;
  --line: #ddd3c4;
  --accent: #1e5c45;
  --accent-ink: #f3fff8;
  --clay: #8d4330;
  --row: 72px;
  --shadow: 0 20px 50px rgba(62, 42, 22, 0.08);
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, "Cascadia Code", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #1b1815;
    --bg-deep: #12100e;
    --panel: #26211c;
    --ink: #f3ece3;
    --muted: #b3a89b;
    --line: #3c342c;
    --accent: #7dcea8;
    --accent-ink: #10241b;
    --clay: #e0a090;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.35), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

.top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  padding: 22px 28px 16px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--clay);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2 { font-family: var(--serif); font-weight: 500; }

h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.03em;
}

.top-actions, .toolbar-actions, .toggle {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

button, .file-button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
}

button:hover, .file-button:hover { border-color: var(--accent); }

button:focus-visible, .file-button:focus-within, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
}

.file-button { position: relative; display: inline-flex; }

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.progress {
  height: 4px;
  margin: 0 28px;
  background: var(--bg-deep);
  border-radius: 999px;
  overflow: hidden;
}

.progress span {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
}

.status {
  min-height: 1.4em;
  margin: 10px 28px 0;
  color: var(--muted);
}

.status.is-error { color: var(--clay); }

.idle {
  width: min(640px, calc(100% - 56px));
  margin: 48px auto;
  padding: 36px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.idle h2 { margin: 0 0 8px; font-size: 2.2rem; }
.idle p { margin: 0; color: var(--muted); font-size: 1.05rem; line-height: 1.5; }

main {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(0, 1fr);
  gap: 16px;
  padding: 12px 28px 28px;
}

.list-pane, .read-pane {
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.toolbar, .read-toolbar { padding: 14px; }

.toolbar { display: flex; flex-direction: column; gap: 10px; }

input[type="search"] {
  width: 100%;
  border: 1px solid var(--line);
  background: transparent;
  color: inherit;
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
}

.counts {
  margin: 0;
  padding: 0 16px 8px;
  color: var(--muted);
  font-size: 0.85rem;
}

.list { flex: 1; overflow: auto; position: relative; }

.spacer { position: relative; width: 100%; }

#rows { position: absolute; left: 0; right: 0; top: 0; }
.spacer:has(.empty-list) #rows { position: static; }

.row {
  height: var(--row);
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 0 14px;
  border-top: 1px solid var(--line);
  cursor: pointer;
}

.row:hover, .row.is-open { background: color-mix(in srgb, var(--accent) 12%, transparent); }

.row input { margin: 0; accent-color: var(--accent); }

.row-open {
  width: 100%;
  min-width: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  text-align: left;
  font: inherit;
}

.row-top, .row-subject {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.from, .row-subject span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.from { font-weight: 600; }

.when {
  flex: none;
  color: var(--muted);
  font-size: 0.78rem;
}

.row-subject { color: var(--muted); font-size: 0.92rem; }

.clip {
  flex: none;
  background: color-mix(in srgb, var(--clay) 16%, transparent);
  color: var(--clay);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 650;
}

.empty-list, .empty-read {
  margin: 0;
  padding: 28px 18px;
  color: var(--muted);
}

.rules { display: flex; flex-direction: column; gap: 8px; }

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

.rule select, .rule input {
  flex: 1 1 110px;
  min-width: 0;
  border: 1px solid var(--line);
  background: transparent;
  color: inherit;
  border-radius: 10px;
  padding: 8px;
  font: inherit;
}

.read-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.read-actions { display: flex; gap: 8px; align-items: center; }

.attachment-download { position: relative; }

.attachment-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 2;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.attachment-menu button { border-radius: 8px; text-align: left; }

.toggle button[aria-selected="true"] {
  background: var(--ink);
  color: var(--panel);
  border-color: var(--ink);
}

.reader { flex: 1; min-height: 0; display: flex; }

.mail-frame, .markdown {
  flex: 1;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--panel);
  color: var(--ink);
}

.markdown {
  margin: 0;
  padding: 28px;
  overflow: auto;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 860px) {
  .top { align-items: stretch; flex-direction: column; }
  main { grid-template-columns: 1fr; grid-template-rows: minmax(280px, 42vh) minmax(320px, 1fr); }
}