* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.55 var(--font); }
a { color: var(--accent); text-underline-offset: .2em; }
button, input, select, textarea { font: inherit; }
button, .button { display: inline-block; min-height: 44px; padding: .55rem .85rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--text); cursor: pointer; text-decoration: none; }
button:hover, .button:hover { background: var(--soft); }
button:disabled { cursor: not-allowed; opacity: .6; }
.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.primary:hover { background: var(--accent); filter: brightness(.9); }
.danger { color: var(--danger); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
input:not([type="checkbox"]), select, textarea { width: 100%; min-width: 0; min-height: 44px; padding: .6rem; border: 1px solid var(--line); border-radius: var(--radius); color: var(--text); background: var(--surface); }
label { display: block; margin: .7rem 0 .35rem; }
.check { display: flex; align-items: center; gap: .5rem; min-height: 44px; }
textarea { resize: vertical; }
h1 { font-size: clamp(1.5rem, 3vw, 2.5rem); line-height: 1.2; }
h2 { font-size: 1.2rem; }
p, li, h1, h2, code { overflow-wrap: anywhere; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.5rem 0; }
.brand { font-size: 1.5rem; font-weight: 800; text-decoration: none; color: var(--text); }
.demo-banner { padding: .55rem 1rem; text-align: center; background: var(--soft); font-size: .9rem; }
.skip-link { position: absolute; top: -100px; left: .5rem; padding: 1rem; background: var(--surface); z-index: 10; }
.skip-link:focus { top: .5rem; }
.login-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; max-width: 1120px; padding: 5rem 2rem; margin: auto; align-items: center; }
.intro .button { margin: .25rem .25rem .25rem 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; }
.inline-field { display: flex; gap: .5rem; }
.muted { color: var(--muted); font-size: .9rem; }
.notice { padding: .85rem; border-left: 3px solid var(--accent); background: var(--soft); }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: 1rem 0; }
.search-label { flex: 1 1 15rem; }
.topbar { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between; padding: .8rem 1.25rem; border-bottom: 1px solid var(--line); background: var(--surface); }
.topbar nav { display: flex; gap: 1rem; }
[aria-current="page"] { font-weight: 750; background: var(--soft); border-radius: .3rem; }
.app-layout { display: grid; grid-template-columns: 215px minmax(0, 1fr); min-height: calc(100dvh - 130px); }
.mobile-nav-toggle { display: none; }
.sidebar { padding: 1rem; border-right: 1px solid var(--line); background: var(--surface); }
.sidebar > button { width: 100%; margin-bottom: .5rem; }
.stack { display: flex; flex-direction: column; gap: .35rem; margin: 1rem 0; }
.stack > a, .stack > button { padding: .6rem; text-decoration: none; text-align: left; min-height: 44px; }
.small-title { font-size: .9rem; color: var(--muted); }
.workspace { padding: 1.5rem; min-width: 0; }
.page-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; }
.badge { display: inline-block; border: 1px solid var(--line); padding: .2rem .55rem; border-radius: 2rem; font-size: .8rem; }
.mail-layout { display: grid; grid-template-columns: minmax(240px, .85fr) minmax(300px, 1.2fr); gap: var(--gap); align-items: start; }
.message-list { min-width: 0; }
.message-row { display: block; width: 100%; text-align: left; margin-bottom: .5rem; padding: 1rem; }
.message-row strong, .message-row span { display: block; }
.message-row[aria-pressed="true"] { border-color: var(--accent); background: var(--soft); }
.reader { min-width: 0; }
.message-body { white-space: pre-wrap; min-height: 12rem; padding: 1rem 0; }
.ai-panel { margin-top: 1rem; }
#back-to-list { display: none; }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); margin: 1rem 0; }
.metrics strong { font-size: 2rem; }
.table-wrap { overflow-x: auto; max-width: 100%; margin: 1rem 0; }
table { width: 100%; border-collapse: collapse; background: var(--surface); text-align: left; }
caption { text-align: left; margin: .5rem 0; color: var(--muted); }
th, td { padding: .85rem; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
pre { padding: 1rem; max-width: 100%; overflow-x: auto; background: var(--surface); border: 1px solid var(--line); }
pre code { overflow-wrap: normal; }
[data-send-view] { margin-top: 1.5rem; }
dialog { max-width: min(680px, calc(100% - 2rem)); width: 100%; max-height: calc(100dvh - 2rem); padding: 1.5rem; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow-y: auto; }
dialog::backdrop { background: #10182b99; }
.toast { position: fixed; bottom: 1rem; right: 1rem; z-index: 20; max-width: min(460px, calc(100vw - 2rem)); padding: 1rem; color: var(--text); background: var(--surface); border: 2px solid var(--accent); border-radius: var(--radius); box-shadow: var(--shadow); }
@media (max-width: 1050px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-layout { grid-template-columns: 180px minmax(0, 1fr); }
  .mail-layout { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .login-layout { grid-template-columns: 1fr; gap: 2rem; padding: 1.5rem 1rem; }
  .app-layout { grid-template-columns: 1fr; }
  body.has-js .mobile-nav-toggle { display: block; margin: .75rem 1rem; }
  body.has-js:not(.nav-open) .sidebar { display: none; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .stack { flex-direction: row; flex-wrap: wrap; }
  .sidebar > button { width: auto; }
  .workspace { padding: 1rem; }
  .mail-layout { display: block; }
  body.has-js:not(.reading-message) .reader { display: none; }
  body.has-js.reading-message .message-list { display: none; }
  #back-to-list { display: inline-block; }
  .topbar { gap: .65rem; }
  .topbar > span { order: 3; flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}