:root {
  --paper: #f3ead8;
  --ink: #1c1916;
  --stamp: #c43c2c;
  --stamp-dark: #9a2c20;
  --panel: #fffaf0;
  --line: #d8cbb3;
  --mute: #6f675c;
  --code-bg: #1c1916;
  --code-fg: #f4e7c8;
  --ok: #2f6b3a;
  --shadow: 0 18px 50px rgba(60, 36, 16, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 10% 0%, #f7d7c8 0, transparent 32%),
    radial-gradient(circle at 90% 10%, #e7efd4 0, transparent 28%),
    var(--paper);
  color: var(--ink);
}

.hidden { display: none !important; }
.screen { min-height: 100vh; }

.login-card {
  width: min(420px, calc(100% - 32px));
  margin: 12vh auto 0;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 36px 32px 28px;
  box-shadow: var(--shadow);
}
.stamp {
  display: inline-block;
  border: 3px solid var(--stamp);
  color: var(--stamp);
  padding: 4px 10px 6px;
  font-family: "Times New Roman", "Songti SC", serif;
  letter-spacing: 0.2em;
  transform: rotate(-6deg);
}
.stamp.mini {
  padding: 0 6px;
  letter-spacing: 0;
  transform: none;
  font-size: 14px;
  margin-right: 8px;
}
.login-card h1, .content h2, .aside-head h2 { margin: 18px 0 8px; font-size: 22px; }
.lede, .hint, .from, .to, em { color: var(--mute); font-style: normal; }
label { display: block; font-size: 13px; color: var(--mute); }
input, select, button {
  font: inherit;
  color: var(--ink);
}
input, select {
  width: 100%;
  margin: 8px 0 16px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
}
button {
  background: var(--stamp);
  color: #fff;
  border: 0;
  padding: 10px 16px;
  cursor: pointer;
}
button:hover { background: var(--stamp-dark); }
button.ghost, button.small {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
button.small { padding: 4px 8px; font-size: 12px; }
button.danger { background: transparent; color: var(--stamp); border: 1px solid var(--stamp); }
.error { color: var(--stamp); min-height: 1.2em; }

.top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.86);
  position: sticky;
  top: 0;
  z-index: 5;
}
.brand { display: flex; align-items: center; gap: 6px; min-width: 160px; }
.brand em { font-size: 12px; }
nav { display: flex; gap: 6px; flex: 1; }
nav button { background: transparent; color: var(--ink); border: 1px solid transparent; }
nav button.on { border-color: var(--ink); }
.banner {
  margin: 0;
  padding: 10px 22px;
  background: #f6d7b0;
  color: #5a3414;
}
.banner code { background: rgba(255,255,255,0.5); padding: 1px 6px; }

main { padding: 18px; }
.panel {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  min-height: calc(100vh - 120px);
}
.panel.solo { grid-template-columns: 1fr; }
aside, .content {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
}
.aside-head, .toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.aside-head h2, .toolbar h2 { margin: 0; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.inline input, .inline select { margin: 0; width: auto; min-width: 140px; }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.list button {
  text-align: left;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  width: 100%;
}
.list button.on { border-color: var(--ink); }
.list small { display: block; color: var(--mute); font-size: 12px; }

.cards { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  padding: 14px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}
.card.unread { box-shadow: inset 3px 0 0 var(--stamp); }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--mute); font-size: 13px; }
.code, .code-pill, .code-block {
  font-family: Consolas, "Courier New", monospace;
  letter-spacing: 0.12em;
}
.code, .code-pill {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 8px 12px;
  min-width: 96px;
  text-align: center;
}
.code-block {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 16px;
  font-size: 28px;
  text-align: center;
  margin-bottom: 16px;
}
.empty { color: var(--mute); padding: 30px 8px; text-align: center; }

.table { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
  align-items: center;
}
.row p { margin: 4px 0 0; color: var(--mute); font-size: 13px; }
.row .ops { display: flex; gap: 8px; flex-wrap: wrap; }
.meta { margin: 12px 0; color: var(--mute); }
.dns {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 12px 0 24px;
}
.dns th, .dns td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(28, 25, 22, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 20;
}
.sheet {
  width: min(720px, 100%);
  max-height: calc(100vh - 40px);
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 20px;
  box-shadow: var(--shadow);
}
.sheet header { display: flex; justify-content: space-between; gap: 12px; }
.sheet h3 { margin: 4px 0; }
.sheet pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px;
  min-height: 80px;
}
.sheet footer { display: flex; gap: 8px; margin-top: 12px; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
  z-index: 30;
}

@media (max-width: 800px) {
  .top { flex-wrap: wrap; }
  .panel { grid-template-columns: 1fr; }
  .card { grid-template-columns: 1fr; }
  .inline input, .inline select { width: 100%; }
}