/* airmx shared stylesheet */

:root {
  --bg: #f0f2f5;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --nav-bg: #111827;
  --nav-text: #9ca3af;
  --danger: #dc2626;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 4px 14px rgba(0, 0, 0, .05);
}

* { 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;
}

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

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

.nav {
  background: var(--nav-bg);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 20px;
  height: 52px;
}
.nav .brand {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-right: 20px;
  letter-spacing: .5px;
}
.nav .brand:hover { text-decoration: none; }
.nav a.tab {
  color: var(--nav-text);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 14px;
}
.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: 24px auto;
  padding: 0 16px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
}

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

.msg-table { width: 100%; border-collapse: collapse; }
.msg-table th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  padding: 6px 10px 10px;
  border-bottom: 2px solid var(--border);
}
.msg-table td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.msg-table tbody tr:hover { background: #f8fafc; }
.msg-table td.date { white-space: nowrap; color: var(--muted); font-size: 13px; }
.msg-table td.from { color: var(--muted); max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-table tr.unread td { font-weight: 600; }
.msg-table tr.unread td.from { color: var(--text); }

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  margin-right: 8px;
}
.dot.read { visibility: hidden; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 56px 0;
  font-size: 15px;
}

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

.meta {
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 16px;
}
.meta h2 { margin: 0 0 10px; font-size: 19px; }
.meta dl { display: grid; grid-template-columns: 70px 1fr; row-gap: 4px; margin: 0; font-size: 14px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; word-break: break-all; }

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

.bodytabs { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.bodytabs button {
  border: none;
  background: #fff;
  color: var(--muted);
  padding: 7px 16px;
  font-size: 13px;
  cursor: pointer;
}
.bodytabs button + button { border-left: 1px solid var(--border); }
.bodytabs button.active { background: var(--primary); color: #fff; }

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: 6px;
  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-block;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  background: #f8fafc;
}
.attach-list a:hover { border-color: var(--primary); text-decoration: none; }
.attach-list .type { color: var(--muted); margin-left: 6px; }

h3.section { font-size: 14px; color: var(--muted); margin: 22px 0 4px; text-transform: uppercase; letter-spacing: .04em; }

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

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 14px;
  cursor: pointer;
}
.btn:hover { background: #f8fafc; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }

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

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  width: 340px;
  background: var(--card);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 34px 36px;
}
.login-card h1 { font-size: 21px; margin: 0 0 24px; color: var(--nav-bg); }
.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: 6px;
  font-size: 14px;
}
.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;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
}
.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: 6px;
  font-size: 13px;
  margin-bottom: 16px;
}