:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --brand: #0b3a75;
  --accent: #4f46e5;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--brand);
  color: #fff;
}
.brand { color: #fff; text-decoration: none; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.brand b { font-weight: 800; }
.logo {
  width: 30px; height: 30px; border-radius: 8px; background: #fff; color: var(--brand);
  display: inline-flex; align-items: center; justify-content: center; font-weight: 900;
}
.who { display: flex; align-items: center; gap: 16px; }
.who span { display: flex; flex-direction: column; text-align: right; font-weight: 600; }
.who small { font-weight: 400; opacity: 0.8; font-size: 12px; }
.wrap { max-width: 880px; margin: 0 auto; padding: 28px 20px 60px; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; }
.muted { color: var(--muted); }
h1 { font-size: 24px; margin: 0 0 4px; }
.btn {
  display: inline-block; border: 1px solid var(--border); background: #fff; color: var(--text);
  border-radius: 10px; padding: 9px 16px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #4338ca; }
.btn.ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.btn.wide { width: 100%; }
.alert { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; padding: 10px 14px; border-radius: 10px; margin: 12px 0; }
.ok { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; margin-bottom: 14px; }
input, select, textarea {
  font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15); }
.login { max-width: 420px; margin: 40px auto; }
.login h1 { font-size: 22px; }
.hero { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.hero h1 { font-size: 28px; }
.bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.section { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 0; }
.tabs { display: flex; gap: 6px; }
.tabs a { padding: 7px 14px; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 600; }
.tabs a.active { background: #e0e7ff; color: var(--accent); }
.toggle { font-size: 13px; }
.tickets { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.ticket { display: flex; align-items: center; gap: 16px; text-decoration: none; color: inherit; transition: box-shadow 0.15s, border-color 0.15s; }
.ticket:hover { border-color: #c7d2fe; box-shadow: 0 6px 18px rgba(15, 23, 42, 0.07); }
.num { font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 48px; }
.main { flex: 1; display: flex; flex-direction: column; }
.badge { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.st-new { background: #e0f2fe; color: #0369a1; }
.st-analysis { background: #ede9fe; color: #6d28d9; }
.st-dev { background: #e0e7ff; color: #4338ca; }
.st-waiting { background: #ffedd5; color: #c2410c; }
.st-done { background: #dcfce7; color: #15803d; }
.empty { text-align: center; padding: 40px; }
.back { display: inline-block; margin-bottom: 14px; text-decoration: none; font-weight: 600; }
.form h1 { margin-bottom: 4px; }
.form form { margin-top: 16px; }
.detail .d-head { display: flex; align-items: baseline; gap: 12px; }
.meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 16px 0 0; }
.meta dt { font-size: 12px; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.meta dd { margin: 4px 0 0; }
.thread { display: flex; flex-direction: column; gap: 12px; margin: 18px 0; }
.msg { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; max-width: 86%; }
.msg.client { align-self: flex-end; background: #eef2ff; border-color: #c7d2fe; }
.msg.team { align-self: flex-start; }
.msg header { display: flex; gap: 10px; align-items: baseline; margin-bottom: 6px; }
.msg time { color: var(--muted); font-size: 12px; }
.msg p { margin: 0; white-space: pre-wrap; }
.file { display: inline-block; margin: 8px 10px 0 0; font-weight: 600; text-decoration: none; }
.reply .row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
@media (max-width: 640px) {
  .meta { grid-template-columns: 1fr 1fr; }
  .hero { flex-direction: column; align-items: flex-start; gap: 12px; }
  .msg { max-width: 100%; }
  .who span { display: none; }
}