/* airmx shared stylesheet */

:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e6e8eb;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --nav-bg: #111827;
  --nav-text: #94a3b8;
  --danger: #dc2626;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .06);
  --ease: .15s ease;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color var(--ease); }
a:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

/* ---------- top nav ---------- */

.nav {
  background: linear-gradient(180deg, #16202f 0%, var(--nav-bg) 100%);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 20px;
  height: 54px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav .brand {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-right: 22px;
  letter-spacing: .5px;
}
.nav .brand:hover { text-decoration: none; }
.nav a.tab {
  color: var(--nav-text);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 14px;
  transition: color var(--ease), background var(--ease);
}
.nav a.tab:hover { color: #fff; background: rgba(255, 255, 255, .08); text-decoration: none; }
.nav a.tab.active { color: #fff; background: rgba(255, 255, 255, .14); font-weight: 600; }
.nav .spacer { flex: 1; }

/* ---------- layout ---------- */

.container {
  max-width: 960px;
  margin: 28px auto;
  padding: 0 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 26px;
}

/* ---------- message list ---------- */

.table-wrap { overflow-x: auto; margin: 0 -6px; }

.msg-table { width: 100%; border-collapse: collapse; }
.msg-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  padding: 4px 12px 10px;
  border-bottom: 1px solid var(--border);
}
.msg-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.msg-table tbody tr { transition: background var(--ease); }
.msg-table tbody tr:last-child td { border-bottom: none; }
.msg-table tbody tr:hover { background: #f6f8fb; }
.msg-table tbody tr.rowlink { cursor: pointer; }
.msg-table td.date { white-space: nowrap; color: var(--muted); font-size: 13px; text-align: right; }
.msg-table td.from {
  color: var(--muted);
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.msg-table td.subject { min-width: 200px; }
.msg-table tr.unread td { font-weight: 600; }
.msg-table tr.unread td.from { color: var(--text); }

.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--primary);
  margin-right: 9px;
  vertical-align: 2px;
}
.dot.read { visibility: hidden; }

.badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  padding: 3px 6px;
  margin-right: 8px;
  vertical-align: 1px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 64px 0 60px;
  font-size: 14px;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 14px 0 4px;
  font-size: 13px;
}
.pager .info { color: var(--muted); }
.pager .disabled { color: #c3c9d1; }
.pager a { padding: 5px 12px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.pager a:hover { border-color: var(--primary); text-decoration: none; }

/* ---------- message view ---------- */

.meta { margin-bottom: 18px; }
.meta h2 {
  margin: 0 0 16px;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: -.01em;
}

.sender { display: flex; align-items: center; gap: 12px; }
.sender .who { min-width: 0; }
.sender .who .name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sender .who .to { color: var(--muted); font-size: 13px; }
.sender .when { margin-left: auto; flex: none; color: var(--muted); font-size: 13px; }

.divider { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

.toolbar { margin-bottom: 16px; display: flex; gap: 10px; align-items: center; }
.toolbar .spacer { flex: 1; }

.bodytabs {
  display: inline-flex;
  background: #eef1f5;
  border-radius: 999px;
  padding: 3px;
}
.bodytabs button {
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 5px 16px;
  font-size: 13px;
  border-radius: 999px;
  cursor: pointer;
  transition: color var(--ease), background var(--ease), box-shadow var(--ease);
}
.bodytabs button:hover { color: var(--text); }
.bodytabs button.active { background: #fff; color: var(--text); font-weight: 600; box-shadow: 0 1px 3px rgba(16, 24, 40, .12); }

pre.body {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.7;
  max-width: 72ch;
  margin: 0;
}

iframe.htmlbody {
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
iframe.htmlbody[hidden] { display: none; }

.attach-list { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.attach-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  background: #f8fafc;
  transition: border-color var(--ease), background var(--ease);
}
.attach-list a:hover { border-color: var(--primary); background: #eff6ff; text-decoration: none; }
.attach-list .type { color: var(--muted); }

h3.section {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin: 24px 0 4px;
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ---------- buttons & forms ---------- */

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 7px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
}
.btn:hover { background: #f8fafc; border-color: #d4d8dd; }
.btn-danger { color: var(--danger); border-color: #f0c4c4; }
.btn-danger:hover { background: #fef2f2; border-color: var(--danger); }

/* ---------- login ---------- */

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.login-card {
  width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 38px 38px 34px;
}
.login-card h1 {
  font-size: 20px;
  margin: 0 0 26px;
  text-align: center;
  color: var(--nav-bg);
  letter-spacing: -.01em;
}
.login-card label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.login-card input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
.login-card button {
  width: 100%;
  padding: 11px;
  margin-top: 4px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--ease);
}
.login-card button:hover { background: var(--primary-dark); }
.login-card .error {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ---------- small screens ---------- */

@media (max-width: 640px) {
  .container { margin: 16px auto; }
  .card { padding: 16px 18px; }
  .msg-table td.from { display: none; }
  .msg-table th:nth-child(2) { display: none; }
  .sender .when { display: none; }
}