:root {
  --bg: #0e1116;
  --panel: #161b23;
  --panel-2: #1c232e;
  --border: #2a3342;
  --text: #e7ecf3;
  --muted: #8a95a6;
  --accent: #4f8cff;
  --accent-2: #37c98b;
  --danger: #ff5d5d;
  --warn: #ffb44d;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "Segoe UI", system-ui, -apple-system, sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-weight: 400; }
code {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 8px; font-size: 12.5px;
  word-break: break-all;
}
.error { color: var(--danger); margin: 8px 0; }

/* Вход */
.login-wrap { display: flex; justify-content: center; padding-top: 10vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 28px; width: 380px;
}
.brand { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.brand span { color: var(--accent); font-weight: 400; font-size: 13px; margin-left: 6px; }
.brand.small { font-size: 16px; }

label { display: block; margin: 12px 0; font-weight: 600; font-size: 13px; }
input[type=text], input[type=password], input[type=number], input[type=search],
textarea, select {
  width: 100%; margin-top: 6px; padding: 9px 12px;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  font: inherit; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
input[type=search] { max-width: 260px; }
input[type=file] { color: var(--muted); max-width: 260px; }
textarea { font-family: Consolas, monospace; font-size: 13px; resize: vertical; }
fieldset { border: 1px solid var(--border); border-radius: 10px; margin: 14px 0; }
legend { padding: 0 8px; font-weight: 600; font-size: 13px; }
.row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.row > label { margin: 6px 0; }
label.check, label.radio { display: flex; align-items: baseline; gap: 8px; font-weight: 500; cursor: pointer; }
label.check small, label.radio small { margin-left: 4px; }
input[type=checkbox], input[type=radio] { accent-color: var(--accent); width: 16px; height: 16px; }

.btn {
  display: inline-block; padding: 9px 18px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  font: inherit; font-weight: 600; transition: filter .15s;
}
.btn:hover { filter: brightness(1.15); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.small-btn { padding: 5px 12px; font-size: 12.5px; }
.btn.wide { width: 100%; margin-top: 8px; }
.btn:disabled { opacity: .5; cursor: default; }

/* Верхняя панель */
.topbar {
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  padding: 12px 22px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tabs button {
  background: none; border: none; color: var(--muted); font: inherit; font-weight: 600;
  padding: 7px 13px; border-radius: 8px; cursor: pointer;
}
.tabs button:hover { color: var(--text); background: var(--panel-2); }
.tabs button.active { color: #fff; background: var(--accent); }
.top-right { margin-left: auto; display: flex; gap: 12px; align-items: center; }

main { padding: 22px; max-width: 1180px; margin: 0 auto; }
.tab { display: none; }
.tab.active { display: block; }

/* Карточки */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 18px; margin-bottom: 14px;
}
.card-title { font-weight: 700; font-size: 13.5px; margin-bottom: 8px; }
.big { font-size: 26px; font-weight: 700; margin: 4px 0; }
.progress { height: 8px; border-radius: 4px; background: var(--panel-2); overflow: hidden; margin: 8px 0 4px; }
.progress .bar { height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); transition: width .4s; }

.copy-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.copy-row code { flex: 1; padding: 9px 12px; }

/* Формы */
.form-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.presets { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.presets button {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 999px; padding: 4px 12px; font: inherit; font-size: 12.5px; cursor: pointer;
}
.presets button:hover { border-color: var(--accent); }
.range-row { display: flex; gap: 12px; align-items: center; }
.range-row input[type=range] { flex: 1; accent-color: var(--accent); }
.range-row output { font-weight: 700; min-width: 64px; text-align: center; }
.subblock { border-left: 3px solid var(--border); padding-left: 14px; margin: 10px 0; }
.actions { display: flex; gap: 12px; align-items: center; margin-top: 16px; }
#f-params .param-row { display: flex; gap: 8px; margin-bottom: 6px; }
#f-params .param-row input { margin-top: 0; }
#f-params .param-row .p-name { max-width: 180px; }

/* Список ссылок */
.link-item {
  display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  padding: 12px 4px; border-bottom: 1px solid var(--border);
}
.link-item:last-child { border-bottom: none; }
.link-name { font-weight: 700; font-size: 15px; min-width: 190px; }
.badge {
  display: inline-block; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--muted); border-radius: 999px; padding: 2px 10px; font-size: 12px; margin: 2px 4px 2px 0;
}
.badge.acc { color: var(--accent); border-color: var(--accent); }
.link-count { margin-left: auto; text-align: right; }
.link-count b { font-size: 15px; }
.link-actions { display: flex; gap: 6px; }

/* Сегменты */
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button {
  background: transparent; color: var(--muted); border: none; padding: 7px 12px;
  font: inherit; font-size: 12.5px; cursor: pointer;
}
.seg button.active { background: var(--accent); color: #fff; }

/* График */
.chart { display: flex; align-items: flex-end; gap: 3px; height: 140px; padding: 10px 0; }
.chart .col {
  flex: 1; min-width: 4px; background: linear-gradient(180deg, var(--accent), #2b5cb8);
  border-radius: 3px 3px 0 0; position: relative; cursor: default;
}
.chart .col.peak { background: linear-gradient(180deg, var(--warn), #b97a1e); }
.chart .col:hover::after {
  content: attr(data-tip); position: absolute; bottom: calc(100% + 6px); left: 50%;
  transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); padding: 4px 8px; border-radius: 6px; white-space: nowrap; font-size: 12px; z-index: 3;
}

/* Таблицы */
.table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.table th, .table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.table .mini-bar { height: 6px; border-radius: 3px; background: var(--accent); display: inline-block; vertical-align: middle; margin-right: 8px; }

.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 6px 4px 14px; cursor: pointer;
}
.chip .x { color: var(--danger); font-weight: 700; padding: 0 8px; }
.server-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.server-row .mini-bar { height: 8px; border-radius: 4px; background: var(--accent-2); display: inline-block; }
.server-row .pct { color: var(--muted); min-width: 44px; text-align: right; }

/* Тост */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); color: var(--text); border: 1px solid var(--accent);
  border-radius: 10px; padding: 10px 20px; z-index: 50; box-shadow: 0 8px 30px rgba(0,0,0,.5);
}
.toast.err { border-color: var(--danger); }

@media (max-width: 760px) {
  .topbar { gap: 8px; }
  .link-name { min-width: 0; }
  .link-count { margin-left: 0; }
}