:root {
  --ink: #12202b;
  --ink-soft: #3d5160;
  --paper: #f4efe6;
  --paper-2: #fffdf8;
  --line: #d9cfc0;
  --teal: #0f6e6b;
  --teal-2: #14918c;
  --sand: #c9a36a;
  --danger: #a33b2c;
  --warn: #b26a16;
  --ok: #2c7a4b;
  --info: #1d5c8f;
  --sidebar: #102029;
  --muted: #7a6f62;
  --shadow: 0 18px 50px rgba(16, 32, 41, 0.12);
  --font: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --sans: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  min-height: 100vh;
}

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

.app {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar);
  color: #e8e0d4;
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand {
  font-family: var(--font);
  font-size: 28px;
  letter-spacing: -0.03em;
  margin: 0 10px 4px;
  color: #f7efe3;
}
.brand span { color: var(--sand); }
.tag {
  margin: 0 10px 22px;
  color: #9aa8b3;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #d7cfc3;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
}
.nav a:hover, .nav a.active {
  background: rgba(201, 163, 106, 0.14);
  color: #fff;
  text-decoration: none;
}
.nav .count {
  margin-left: auto;
  background: var(--sand);
  color: #102029;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 99px;
}
.side-foot {
  margin-top: auto;
  padding: 14px 10px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: #9aa8b3;
}
.side-foot strong { color: #f4efe6; display: block; font-size: 13px; }

.main { padding: 28px 32px 48px; }
.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 22px;
}
.top h1 {
  font-family: var(--font);
  font-size: 34px;
  margin: 0;
  letter-spacing: -0.03em;
}
.lede { margin: 6px 0 0; color: var(--ink-soft); max-width: 640px; }

.btn, button.btn, input[type=submit].btn {
  appearance: none;
  border: 0;
  background: var(--teal);
  color: white;
  padding: 9px 14px;
  border-radius: 9px;
  font-weight: 600;
  cursor: pointer;
  font-size: 13px;
}
.btn.secondary { background: #e7ddd0; color: var(--ink); }
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }
.btn.danger { background: var(--danger); }
.btn.warn { background: var(--warn); }
.btn.small { padding: 6px 10px; font-size: 12px; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.grid { display: grid; gap: 16px; }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1.2fr 0.8fr; }
.grid-split { grid-template-columns: 320px 1fr; }

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.card h2, .card h3 {
  font-family: var(--font);
  margin: 0 0 12px;
}
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.kpi .value {
  font-family: var(--font);
  font-size: 32px;
  margin-top: 6px;
}
.kpi a { color: inherit; text-decoration: none; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; padding: 8px 6px; border-bottom: 1px solid var(--line); }
td { padding: 10px 6px; border-bottom: 1px solid #eee6da; vertical-align: top; }
.mono { font-variant-numeric: tabular-nums; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  text-transform: capitalize;
}
.badge-ok { background: #e4f3e9; color: var(--ok); }
.badge-warn { background: #f8ead6; color: var(--warn); }
.badge-danger { background: #f8e1dc; color: var(--danger); }
.badge-info { background: #dceaf6; color: var(--info); }
.badge-muted { background: #ece7de; color: var(--muted); }

.flash { padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 14px; }
.flash.ok { background: #e4f3e9; color: #215c38; }
.flash.err { background: #f8e1dc; color: #7a2c22; }

.form { display: grid; gap: 10px; }
label { font-size: 12px; color: var(--muted); display: grid; gap: 5px; }
input, select, textarea {
  font: inherit;
  padding: 9px 10px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  width: 100%;
}
textarea { min-height: 120px; resize: vertical; }

.mail-list { display: grid; gap: 6px; max-height: calc(100vh - 220px); overflow: auto; }
.mail-item {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: inherit;
  border: 1px solid transparent;
  text-decoration: none;
}
.mail-item:hover, .mail-item.active { background: #efe6d8; text-decoration: none; }
.mail-item .from { font-weight: 700; font-size: 13px; }
.mail-item .sub { color: var(--ink-soft); font-size: 13px; }
.mail-item .meta { color: var(--muted); font-size: 11px; margin-top: 4px; }

.chat {
  display: flex;
  flex-direction: column;
  min-height: 520px;
}
.bubbles { flex: 1; display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.bubble {
  max-width: 78%;
  padding: 10px 12px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
}
.bubble.in { background: #efe6d8; align-self: flex-start; }
.bubble.out { background: #d7ecea; align-self: flex-end; }
.bubble small { display: block; color: var(--muted); margin-top: 6px; font-size: 11px; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1200px 500px at 10% -10%, #c9a36a33, transparent),
    linear-gradient(160deg, #102029 0%, #1b3a3a 55%, #c9a36a 160%);
}
.login-card {
  width: min(440px, 92vw);
  background: var(--paper-2);
  padding: 36px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.login-card h1 { font-family: var(--font); font-size: 40px; margin: 0 0 6px; }
.hint {
  background: #efe6d8;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tabs a { padding: 6px 10px; border-radius: 99px; background: #efe6d8; color: var(--ink); text-decoration: none; font-size: 12px; font-weight: 600; }
.tabs a.active { background: var(--ink); color: #fff; }

@media (max-width: 1080px) {
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .grid-2, .grid-split, .grid-3 { grid-template-columns: 1fr; }
  .app { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .nav { display: flex; flex-wrap: wrap; }
  .side-foot { display: none; }
}
@media (max-width: 720px) {
  .main { padding: 18px 14px 32px; }
  .grid-6 { grid-template-columns: 1fr 1fr; }
  .top { flex-direction: column; align-items: flex-start; }
}