:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1c2129;
  --line: #2a313c;
  --fg: #e6edf3;
  --muted: #8b949e;
  --acc: #58a6ff;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
  --code: #ff7b72;
  --mono: ui-monospace, 'Cascadia Mono', 'Consolas', monospace;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.45 -apple-system, 'Segoe UI', Roboto, sans-serif;
  display: flex; flex-direction: column;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--err); min-height: 18px; margin-top: 8px; }

/* header */
header {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; background: var(--bg2); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 16px; letter-spacing: .5px; }
.brand span { color: var(--acc); margin-left: 4px; font-weight: 400; }
.health { font-size: 12px; color: var(--muted); }
.health.ok { color: var(--ok); }
.health.bad { color: var(--err); }
.search-wrap { flex: 1; }
#search {
  width: 100%; max-width: 480px; padding: 7px 10px;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 6px;
  font-family: var(--mono); font-size: 13px;
}
#search:focus { outline: none; border-color: var(--acc); }
select, button {
  padding: 7px 10px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--bg3); color: var(--fg); cursor: pointer; font-size: 13px;
}
button:hover { border-color: var(--acc); }
button.primary { background: #1f6feb; border-color: #1f6feb; color: #fff; }
button.primary:hover { background: #388bfd; }
button.ghost { background: transparent; }
button.danger { color: var(--err); }
button.small { padding: 3px 8px; font-size: 12px; }

/* layout */
main { flex: 1; display: flex; min-height: 0; }
#list-pane {
  width: 330px; min-width: 260px; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; background: var(--bg2);
}
.list-meta { padding: 8px 12px; color: var(--muted); font-size: 12px; }
.mailbox-list { flex: 1; overflow-y: auto; }
.mailbox-item {
  padding: 8px 12px; border-bottom: 1px solid var(--line); cursor: pointer;
  display: flex; align-items: center; gap: 8px;
}
.mailbox-item:hover { background: var(--bg3); }
.mailbox-item.active { background: var(--bg3); box-shadow: inset 3px 0 0 var(--acc); }
.mailbox-item .mb-mail {
  font-family: var(--mono); font-size: 12.5px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; flex: 1;
}
.mailbox-item .mb-time { color: var(--muted); font-size: 11px; }
.badge {
  background: #1f6feb33; color: var(--acc); border: 1px solid #1f6feb55;
  border-radius: 10px; font-size: 11px; padding: 0 7px; min-width: 18px; text-align: center;
}
.badge.zero { display: none; }
.pager {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 8px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px;
}
#detail-pane { flex: 1; overflow-y: auto; padding: 18px 22px; }
.empty { text-align: center; color: var(--muted); margin-top: 12vh; }
.empty-big { font-size: 44px; margin-bottom: 8px; }

/* detail */
.detail-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.detail-head .email { font-family: var(--mono); font-size: 16px; }
.otp-hero {
  background: var(--bg2); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 18px; margin-bottom: 14px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.otp-code { font-family: var(--mono); font-size: 34px; letter-spacing: 6px; color: var(--code); }
.otp-code.none { font-size: 18px; letter-spacing: 0; color: var(--muted); }
.section { margin-bottom: 18px; }
.section h3 { margin: 0 0 8px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .8px; }
.entry {
  background: var(--bg2); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 8px;
}
.entry-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.entry-subj { font-weight: 600; }
.entry-from { color: var(--muted); font-size: 12.5px; }
.entry-time { color: var(--muted); font-size: 11.5px; margin-left: auto; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg3); border: 1px solid var(--line); border-radius: 6px;
  padding: 3px 8px; font-family: var(--mono); font-size: 12px;
}
.chip.code { color: var(--code); border-color: #f8514955; cursor: pointer; }
.chip.link { color: var(--acc); max-width: 460px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip.link a { color: var(--acc); text-decoration: none; }
.creds { font-family: var(--mono); font-size: 13px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.pw { background: var(--bg3); padding: 2px 8px; border-radius: 5px; border: 1px solid var(--line); }
.hist-row {
  display: flex; gap: 10px; align-items: center; padding: 6px 10px;
  border-bottom: 1px solid var(--line); cursor: pointer; font-size: 13px;
}
.hist-row:hover { background: var(--bg3); }
.hist-time { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.hist-file { font-family: var(--mono); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* modal */
.modal-back {
  position: fixed; inset: 0; background: #000a; display: flex;
  align-items: center; justify-content: center; z-index: 50;
}
.modal {
  width: min(880px, 94vw); max-height: 88vh; display: flex; flex-direction: column;
  background: var(--bg2); border: 1px solid var(--line); border-radius: 10px;
}
.modal-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 12.5px;
}
.modal-body { overflow-y: auto; padding: 14px; }
.kv { margin-bottom: 6px; font-size: 13px; }
.kv b { color: var(--muted); font-weight: 500; }
pre.raw {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px; font-family: var(--mono); font-size: 12px; white-space: pre-wrap;
  word-break: break-word; max-height: 46vh; overflow-y: auto;
}

/* toasts */
#toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast {
  background: var(--bg3); border: 1px solid var(--line); border-left: 3px solid var(--acc);
  border-radius: 8px; padding: 10px 14px; font-size: 13px; max-width: 420px;
  animation: slidein .15s ease-out;
}
.toast.ok { border-left-color: var(--ok); }
.toast.err { border-left-color: var(--err); }
@keyframes slidein { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }

/* login */
.login-body { display: flex; align-items: center; justify-content: center; }
.login-card {
  background: var(--bg2); border: 1px solid var(--line); border-radius: 12px;
  padding: 34px 38px; width: 300px; text-align: center;
}
.login-card form { display: flex; gap: 8px; }
.login-card input {
  flex: 1; padding: 10px 12px;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 6px;
}
.login-card input:focus { outline: none; border-color: var(--acc); }
.login-card button { padding: 10px 14px; }