/* RichMail Go — „Schránka" (2026-07-19, v2 = RichMail 3-sloupcový layout).
   Replikuje RichMail v RichToDo (Outlook 3-column: složky | seznam | čtecí panel + toolbar),
   adaptováno do RuKa washi palety. Slim: bez CRM linkování/AI/scheduled/multi-account.
   Per CLAUDE.md §6 (glass, focus zóny), §11 (jen var(--*) tokeny, žádný inline onclick). */

/* ── přístupová ✉ ikona v horní liště (vždy viditelná) ── */
.topbar__mail {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-size: 20px;
  text-decoration: none;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.topbar__mail:hover { background: rgba(125, 43, 31, 0.08); }
.topbar__mail.is-active { background: rgba(125, 43, 31, 0.12); }
.topbar__mail .badge {
  position: absolute;
  top: 3px;
  right: 3px;
}

/* ── 3-sloupcový app shell ── */
.rm-app {
  display: grid;
  grid-template-columns: 200px minmax(260px, 1fr) minmax(320px, 1.4fr);
  grid-template-rows: auto minmax(0, 1fr);
  height: calc(100vh - 172px);
  min-height: 460px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

/* toolbar */
.rm-toolbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  min-height: 52px;
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}
.rm-toolbar__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-accent);
  letter-spacing: 0.02em;
}
.rm-toolbar__tag { font-size: var(--text-sm); color: var(--color-text-muted); }
.rm-toolbar__spacer { margin-left: auto; }
.rm-toolbar__hint { font-size: var(--text-sm); color: var(--color-text-muted); }

/* složky (rail) */
.rm-folders {
  grid-row: 2;
  grid-column: 1;
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-3) 0;
  background: var(--color-surface-muted);
  border-right: 1px solid var(--color-border);
}
.rm-folder {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  text-align: left;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.rm-folder:hover { background: rgba(60, 40, 20, 0.05); color: var(--color-ink); }
.rm-folder.is-active { background: rgba(125, 43, 31, 0.10); color: var(--color-brand-wine); font-weight: 600; }
.rm-folder__icon { width: 20px; text-align: center; font-size: 15px; flex: 0 0 auto; }
.rm-folder__name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rm-folder__badge {
  flex: 0 0 auto;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 1px var(--space-2);
  border-radius: 999px;
  min-width: 18px;
  text-align: center;
}

/* seznam mailů */
.rm-list {
  grid-row: 2;
  grid-column: 2;
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--color-border);
}
.rm-list__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.rm-list__title { font-weight: 600; color: var(--color-ink); }
.rm-list__count { font-size: var(--text-xs); color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
.rm-list__scroll { flex: 1; min-height: 0; overflow-y: auto; }

.mail-row {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  grid-template-rows: auto auto;
  gap: 0 var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-left: 3px solid transparent;
  background: none;
  cursor: pointer;
  transition: background var(--dur-fast);
}
.mail-row:hover { background: rgba(60, 40, 20, 0.04); }
.mail-row.is-selected { background: rgba(125, 43, 31, 0.10); }
.mail-row.is-unread { border-left-color: var(--color-accent); }
.mail-row__avatar {
  grid-column: 1;
  grid-row: 1 / 3;
  align-self: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-on-accent);
  background: var(--color-accent);
}
.mail-row.is-unread .mail-row__avatar { background: var(--color-brand-wine); }
.mail-row__top { grid-column: 2; grid-row: 1; display: flex; align-items: center; gap: var(--space-2); min-width: 0; }
.mail-row__from { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--color-text); }
.mail-row.is-unread .mail-row__from { font-weight: 700; color: var(--color-brand-wine); }
.mail-row__date { grid-column: 3; grid-row: 1; font-size: var(--text-xs); color: var(--color-text-muted); white-space: nowrap; }
.mail-row__subject {
  grid-column: 2;
  grid-row: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--color-text);
}
.mail-row.is-unread .mail-row__subject { font-weight: 600; }
.mail-row__snippet {
  grid-column: 2 / -1;
  grid-row: 2;
  display: none;
}
.mail-row__meta { grid-column: 3; grid-row: 2; display: flex; align-items: center; gap: var(--space-1); justify-content: flex-end; }
.mail-row__tag { font-size: var(--text-xs); }
.mail-row__tag--spam { color: var(--color-warning-text); }
.mail-row__tag--known { color: var(--color-accent); }

/* čtecí panel */
.rm-reading {
  grid-row: 2;
  grid-column: 3;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.rm-reading__empty {
  margin: auto;
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-6);
}
.rm-reading__empty-icon { font-size: 40px; opacity: 0.5; display: block; margin-bottom: var(--space-3); }
.rm-reading__head {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.rm-back {
  display: none;
  background: none;
  border: none;
  color: var(--color-accent);
  cursor: pointer;
  font-size: var(--text-sm);
  padding: 0 0 var(--space-2);
}
.rm-reading__subject { font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-ink); margin-bottom: var(--space-1); }
.rm-reading__from { font-size: var(--text-sm); color: var(--color-text-muted); }
.rm-reading__from strong { color: var(--color-text); }
.rm-reading__known { color: var(--color-accent); text-decoration: none; }
.rm-reading__known:hover { text-decoration: underline; }
.rm-reading__body { flex: 1; min-height: 0; overflow-y: auto; padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }

.rm-spam-banner {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: var(--text-sm);
}

.rm-msg {
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-1);
}
.rm-msg--in { align-self: flex-start; max-width: 88%; background: var(--color-surface); border: 1px solid var(--color-border); }
.rm-msg--out { align-self: flex-end; max-width: 88%; background: rgba(125, 43, 31, 0.10); border: 1px solid var(--color-accent); }
.rm-msg__meta { display: flex; gap: var(--space-2); align-items: baseline; margin-bottom: var(--space-1); }
.rm-msg__who { font-weight: 600; font-size: var(--text-sm); color: var(--color-text); }
.rm-msg__time { font-size: var(--text-xs); color: var(--color-text-muted); }
.rm-msg__body { font-size: var(--text-base); color: var(--color-text); line-height: 1.5; word-wrap: break-word; }
.rm-msg__att { margin-top: var(--space-2); font-size: var(--text-sm); color: var(--color-text-muted); }

/* HTML e-mail render (odeslané washi šablony + příchozí HTML; DOMPurify + CSP img-src chrání) */
.rm-html { max-width: 100%; overflow-x: auto; border-radius: var(--radius-md); }
.rm-html img { max-width: 100%; height: auto; }
.rm-html table { max-width: 100%; }

/* editor odpovědi (pod čtecím panelem) */
.rm-reply {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
}
.rm-reply__text {
  width: 100%;
  min-height: 80px;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  resize: vertical;
}
.rm-reply__text:focus-visible { outline: 2px solid var(--color-ring); outline-offset: 1px; }
.rm-reply__foot { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-2); flex-wrap: wrap; }
.rm-reply__hint { font-size: var(--text-sm); color: var(--color-text-muted); }
.rm-reply__btns { display: inline-flex; gap: var(--space-2); flex-wrap: wrap; }

/* nová zpráva — pole Komu / Předmět */
.rm-compose__row { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-2); }
.rm-compose__lbl { flex: 0 0 72px; font-size: var(--text-sm); color: var(--color-text-muted); }
.rm-compose__input {
  flex: 1;
  min-width: 0;
  min-height: 40px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
}
.rm-compose__input:focus-visible { outline: 2px solid var(--color-ring); outline-offset: 1px; }
.rm-reading__date { color: var(--color-text-muted); }
.rm-reading__actions { margin-top: var(--space-2); }

.rm-folder:focus-visible,
.mail-row:focus-visible,
.rm-back:focus-visible { outline: 2px solid var(--color-ring); outline-offset: -2px; }

/* ── mobil: jeden sloupec, složky jako chipy, čtení jako overlay ── */
@media (max-width: 860px) {
  .rm-app {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(0, 1fr);
    height: calc(100vh - 150px);
  }
  .rm-folders {
    grid-row: 2;
    grid-column: 1;
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    padding: var(--space-2) var(--space-3);
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .rm-folder { width: auto; min-height: 40px; border-radius: 999px; white-space: nowrap; }
  .rm-list { grid-row: 3; grid-column: 1; border-right: none; }
  .rm-reading { grid-row: 3; grid-column: 1; display: none; }
  .rm-app.rm-app--reading .rm-folders,
  .rm-app.rm-app--reading .rm-list { display: none; }
  .rm-app.rm-app--reading .rm-reading { display: flex; }
  .rm-back { display: inline-block; }
  .rm-msg--in, .rm-msg--out { max-width: 94%; }
  .rm-reply__foot .btn { width: 100%; min-height: 44px; }
}