:root {
  --c-surface0: #f6f1e7;
  --c-surface1: #fffdf8;
  --c-surface2: #efe8da;
  --c-text: #1d1a16;
  --c-text2: #5a5247;
  --c-accent: #9a6b2f;
  --c-accent-text: #ffffff;
  --c-focus: #2b5fa8;
  --c-danger: #a63d2f;
  --c-line: #d9cfbd;
  --font: "Iowan Old Style", Palatino, Georgia, serif;
  --ui: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--c-surface0);
  color: var(--c-text);
  font-family: var(--ui);
  font-size: 16px;
  line-height: 1.45;
}

.top {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--c-line);
  background: var(--c-surface1);
}

.mark {
  font-family: var(--font);
  letter-spacing: 0.12em;
  font-size: 1.1rem;
}

.sub {
  color: var(--c-text2);
  letter-spacing: 0.18em;
  font-size: 0.75rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

h1, h2 { font-family: var(--font); font-weight: 500; }
h1 { font-size: 2rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 1.5rem 0 0.5rem; }

.lead, .hint, .limit { color: var(--c-text2); }

.sig-row { display: flex; gap: 0.5rem; align-items: center; margin: 0.5rem 0; }
.limit { border-left: 3px solid var(--c-accent); padding-left: 0.75rem; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button, input, select, textarea {
  border: 1px solid var(--c-line);
  background: var(--c-surface1);
  border-radius: 6px;
}

input, select, textarea {
  display: block;
  width: 100%;
  padding: 0.6rem 0.7rem;
  margin: 0.25rem 0 0.8rem;
}

textarea { min-height: 5rem; }

button {
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  background: var(--c-surface2);
}

button.primary {
  background: var(--c-accent);
  color: var(--c-accent-text);
  border-color: var(--c-accent);
}

button.text {
  background: transparent;
  border-color: transparent;
  color: var(--c-focus);
  padding-left: 0;
}

button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
}

.banner, .error { color: var(--c-danger); }
.banner {
  background: #f8e6e2;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
}

.row-actions, .tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0; align-items: center; }
.row-actions select {
  min-height: 2.5rem;
  background: transparent;
  color: inherit;
  border: 1px solid var(--c-line);
  border-radius: 0;
  padding: 0 0.5rem;
}

.tab[aria-current="page"] { border-color: var(--c-accent); }

.card {
  background: var(--c-surface1);
  border: 1px solid var(--c-line);
  border-radius: 8px;
  padding: 0.8rem;
  margin: 0.5rem 0;
}

label { display: block; margin-top: 0.4rem; }

fieldset { border: 1px solid var(--c-line); border-radius: 8px; margin: 0 0 0.8rem; }

pre {
  white-space: pre-wrap;
  background: var(--c-surface1);
  border: 1px solid var(--c-line);
  padding: 0.8rem;
  border-radius: 8px;
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

body.workspace main {
  max-width: none;
  margin: 0;
  padding: 0 0 2rem;
}

.command {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--c-surface1);
  border-bottom: 1px solid var(--c-line);
}

.command input { margin: 0; flex: 1 1 auto; width: auto; min-width: 8rem; }
.command button { flex: 0 0 auto; white-space: nowrap; }
.command #who { margin: 0; color: var(--c-text2); white-space: nowrap; }

.workspace-grid {
  display: grid;
  grid-template-columns: 260px 380px minmax(0, 1fr);
  min-height: calc(100vh - 9.5rem);
}

#mail-rail, #mail-list {
  background: var(--c-surface1);
  border-right: 1px solid var(--c-line);
  overflow: auto;
}

#mail-reading { padding: 1.25rem 1.5rem 3rem; }

#panel-session, #panel-security, #panel-agents, #panel-appearance {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0.5rem 1.25rem 2rem;
}

.folder-btn, .mail-row {
  display: block;
  width: 100%;
  text-align: left;
  min-height: 56px;
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid var(--c-line);
  background: transparent;
  padding: 0.7rem 0.9rem;
}

.folder-btn[aria-current="true"], .mail-row[aria-current="true"] {
  background: var(--c-surface2);
}

.mail-row .subject { display: block; font-weight: 600; }
.mail-row .meta { display: block; color: var(--c-text2); font-size: 0.85rem; }
.approval-body, .approval-html {
  display: block;
  margin: 0.35rem 0 0;
  max-width: 42rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--c-text2);
}
.mail-row.unread .subject { font-weight: 700; }

.mail-state { margin: 0; padding: 1.25rem 0.9rem; color: var(--c-text2); }
.mail-state.error { color: var(--c-danger); }

.reading-copy {
  max-width: 68ch;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.reading-head { margin-bottom: 1rem; }
.reading-head h2 { margin: 0 0 0.35rem; }

#compose-sheet {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: min(34rem, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  overflow: auto;
  background: var(--c-surface1);
  border: 1px solid var(--c-line);
  border-radius: 12px;
  padding: 1rem 1rem 1.2rem;
  z-index: 4;
  box-shadow: 0 12px 40px rgba(29, 26, 22, 0.16);
}

#compose-sheet h2 { margin: 0; }

#mail-toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  background: var(--c-text);
  color: var(--c-surface1);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  z-index: 5;
  max-width: min(40rem, calc(100vw - 2rem));
}

.skin-card { margin: 0.5rem 0; }

@media (max-width: 768px) {
  .workspace-grid { grid-template-columns: 1fr; }
  #mail-rail, #mail-list {
    border-right: 0;
    border-bottom: 1px solid var(--c-line);
    max-height: 16rem;
  }
  #compose-sheet {
    top: 0.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
    left: 0.5rem;
    width: auto;
    max-height: none;
  }
  .command { flex-wrap: wrap; }
}

@media (max-width: 420px) {
  main { padding: 1rem 0.8rem 2rem; }
  h1 { font-size: 1.6rem; }
  .row-actions button, .tabs button { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
}