:root {
  --bg: #0b0d10;
  --panel: #12151a;
  --panel2: #171b21;
  --border: #232833;
  --text: #e6e9ee;
  --muted: #8b94a3;
  --accent: #5b8cff;
  --accent-dim: #2a3350;
  --unread: #5b8cff;
  --junk: #c9821f;
  --good: #3fb960;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; cursor: pointer; }
a { color: var(--accent); }

/* layout */
.app { display: grid; grid-template-rows: auto 1fr; height: 100vh; }
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.topbar .title { font-weight: 650; letter-spacing: .2px; }
.topbar .title b { color: var(--accent); }
.topbar .spacer { flex: 1; }
.search {
  flex: 1; max-width: 440px; background: var(--panel2);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 7px 11px; outline: none;
}
.search:focus { border-color: var(--accent); }
.status { color: var(--muted); font-size: 12px; min-width: 90px; text-align: right; }
.tb-btn {
  background: var(--panel2); border: 1px solid var(--border); color: var(--muted);
  border-radius: 8px; padding: 7px 11px;
}
.tb-btn:hover { color: var(--text); border-color: var(--accent); }

.main { display: grid; grid-template-columns: 380px 1fr; min-height: 0; }
.list { border-right: 1px solid var(--border); overflow-y: auto; background: var(--panel); }
.reader { overflow-y: auto; padding: 0; min-width: 0; }

/* list items */
.item { padding: 11px 16px; border-bottom: 1px solid var(--border); cursor: pointer; }
.item:hover { background: var(--panel2); }
.item.active { background: var(--panel2); box-shadow: inset 3px 0 0 var(--accent); }
.item .row1 { display: flex; align-items: baseline; gap: 8px; }
.item .from { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item.unread .from::before {
  content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--unread); margin-right: 7px; vertical-align: middle;
}
.item .time { color: var(--muted); font-size: 12px; white-space: nowrap; }
.item .subject { margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item.unread .subject { font-weight: 600; }
.item .preview { color: var(--muted); font-size: 12.5px; margin-top: 2px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .badges { margin-top: 5px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.badge {
  font-size: 11px; padding: 1px 7px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--muted); background: var(--panel2);
}
.badge.to { color: #a9c3ff; border-color: #2d3b5e; }
.badge.junk { color: var(--junk); border-color: #5a4219; }
.badge.clip { color: var(--muted); }

/* reader */
.reader .empty { color: var(--muted); display: grid; place-items: center; height: 100%; }
.msg { padding: 22px 28px; max-width: 900px; }
.msg h1 { font-size: 19px; margin: 0 0 14px; line-height: 1.3; }
.msg .meta { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.msg .meta b { color: var(--text); font-weight: 600; }
.msg .meta .to-hl { color: #a9c3ff; }
.msg .divider { height: 1px; background: var(--border); margin: 16px 0; }
.msg .atts { margin: 14px 0; display: flex; gap: 8px; flex-wrap: wrap; }
.msg .att {
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
  background: var(--panel2); border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 11px; color: var(--text); font-size: 13px;
}
.msg .att:hover { border-color: var(--accent); }
.msg .att .sz { color: var(--muted); font-size: 12px; }
.bodyframe { width: 100%; border: 0; background: #fff; border-radius: 8px; min-height: 300px; }
.bodytext { white-space: pre-wrap; word-break: break-word; background: var(--panel2);
  border: 1px solid var(--border); border-radius: 8px; padding: 16px; }

/* login */
.login-wrap { height: 100vh; display: grid; place-items: center; }
.login-card { background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 30px 28px; width: 320px; }
.login-card h2 { margin: 0 0 4px; }
.login-card h2 b { color: var(--accent); }
.login-card p { color: var(--muted); margin: 0 0 18px; font-size: 13px; }
.login-card input { width: 100%; background: var(--panel2); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 10px 12px; outline: none; margin-bottom: 12px; }
.login-card input:focus { border-color: var(--accent); }
.login-card button { width: 100%; background: var(--accent); border: 0; color: #fff;
  border-radius: 8px; padding: 10px; font-weight: 600; }
.login-card .err { color: #ff6b6b; font-size: 13px; margin-bottom: 10px; }

.scrollbar::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2a303b; border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }