:root {
  --bg: #050505;
  --bg-soft: #0a0a0a;
  --panel: #101010;
  --panel-2: #151515;
  --panel-3: #1c1c1c;
  --text: #f5f5f5;
  --muted: #a7a7a7;
  --line: #2a2a2a;
  --line-strong: #3a3a3a;
  --accent: #ffffff;
  --success: #1f9d55;
  --danger: #d84b4b;
  --warning-bg: #171717;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #050505 0%, #070707 100%);
}

a { color: inherit; text-decoration: none; }
code {
  color: #fff;
  background: #111;
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 8px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.96);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 3;
}
.brand { font-weight: 800; letter-spacing: .2px; }
nav { display: flex; gap: 16px; color: var(--muted); font-size: 14px; }
nav a { padding: 8px 10px; border-radius: 10px; }
nav a:hover { color: var(--text); background: #111; }

.container { max-width: 1120px; margin: 0 auto; padding: 36px 20px 54px; }
.hero { margin-bottom: 24px; }
.hero.small { margin-bottom: 18px; }
.hero h1 { margin: 0 0 10px; font-size: 34px; }
.hero p { margin: 0; color: var(--muted); line-height: 1.55; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.card {
  background: linear-gradient(180deg, #101010 0%, #0c0c0c 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
}
.card h2 { margin: 0 0 16px; font-size: 20px; }
.form { display: grid; gap: 10px; }
.form label { color: var(--muted); font-size: 14px; }
input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  padding: 12px 13px;
  border-radius: 12px;
  outline: none;
}
input:focus {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 3px rgba(255,255,255,.06);
}
button, .button {
  border: 1px solid #3f3f3f;
  border-radius: 12px;
  background: linear-gradient(180deg, #202020 0%, #161616 100%);
  color: #fff;
  padding: 11px 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: .18s ease;
}
button:hover, .button:hover {
  background: linear-gradient(180deg, #272727 0%, #1b1b1b 100%);
  border-color: #5b5b5b;
}
.secondary {
  background: linear-gradient(180deg, #181818 0%, #101010 100%);
  border-color: #4a4a4a;
}
.secondary:hover {
  background: linear-gradient(180deg, #202020 0%, #151515 100%);
}
.danger {
  background: var(--danger);
  border-color: #d84b4b;
  color: #fff;
}
.danger:hover { filter: brightness(1.05); }
.success {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.success:hover { filter: brightness(1.05); }

.account-list, .chat-list, .message-list { display: grid; gap: 10px; }
.account-row, .chat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
  border-radius: 14px;
}
.chat-row:hover, .account-row:hover { border-color: #444; background: rgba(255,255,255,.03); }
.account-row strong { display: block; margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 14px; }
.actions { display: flex; gap: 8px; align-items: center; }
.actions form { margin: 0; }
.chat-row em { color: #d4d4d4; font-style: normal; font-size: 13px; }
.statuses { display:flex; gap:8px; flex-wrap:wrap; }
.badge {
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--line);
  background: #111;
  color: #ddd;
}
.badge.ok { background: rgba(31,157,85,.14); border-color: rgba(31,157,85,.55); color: #9ae6b4; }
.badge.no { background: rgba(216,75,75,.14); border-color: rgba(216,75,75,.55); color: #ffb3b3; }

.message {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
  border-radius: 14px;
  padding: 14px;
}
.message-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.message pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  font: inherit;
  line-height: 1.5;
}
.inline-form { display: flex; gap: 10px; max-width: 320px; margin-top: 14px; }
.warning, .alert {
  background: var(--warning-bg);
  border: 1px solid var(--line-strong);
  color: #efefef;
  padding: 14px 16px;
  border-radius: 14px;
  margin-top: 14px;
}
.error-card p { color: var(--muted); }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card {
  width: 100%; max-width: 420px;
  background: linear-gradient(180deg, #101010 0%, #0b0b0b 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.login-card h1 { margin: 0 0 10px; }
.login-card p { color: var(--muted); margin: 0 0 18px; }
.login-card form { display: grid; gap: 12px; }
.accounts-card { margin-top: 20px; }
details { margin-top: 8px; }
summary { cursor: pointer; color: var(--text); font-weight: 700; }
ul { margin: 8px 0 0; padding-left: 20px; color: var(--muted); }
.helper { font-size: 13px; color: var(--muted); line-height: 1.5; }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 840px) {
  .account-row, .chat-row { align-items: stretch; flex-direction: column; }
  .actions { justify-content: stretch; width: 100%; }
  .actions > * { flex: 1; }
  .hero h1 { font-size: 28px; }
  .topbar { padding: 14px 16px; }
}
.upload-card { max-width: 720px; margin-bottom: 28px; }
.groups-wrap { margin-top: 28px; }
.section-title { margin: 0 0 14px; font-size: 24px; }
.group-list { display: grid; gap: 14px; }
.group-card {
  background: linear-gradient(180deg, #101010 0%, #0b0b0b 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
}
.group-head {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid transparent;
}
.group-head::-webkit-details-marker { display: none; }
.group-card[open] .group-head { border-bottom-color: var(--line); }
.group-card .account-list { padding: 16px; }
.group-card .account-row { background: rgba(255,255,255,.018); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.card-head h2 { margin: 0; }
.search-input { max-width: 360px; }
.crumbs { color: var(--muted); font-size: 14px; margin-bottom: 10px; }
.crumbs a { color: var(--text); text-decoration: underline; text-decoration-color: #444; }
.password-card { margin-bottom: 18px; }
.password-line { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center; }
.password-line input { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
@media (max-width: 760px) {
  .group-head { flex-direction: column; align-items: stretch; }
  .card-head { flex-direction: column; align-items: stretch; }
  .search-input { max-width: none; }
  .password-line { grid-template-columns: 1fr; }
}