/* Каталог ВЧ-фильтров — оформление.
   Цвета заданы токенами и переопределяются для тёмной темы в двух местах:
   медиазапрос (настройка ОС) и [data-theme] (переключатель на странице). */

:root {
  color-scheme: light;
  --page:           #f5f5f3;
  --surface-1:      #fcfcfb;
  --surface-2:      #f0efec;
  --border:         #dedcd6;
  --border-strong:  #c4c1b8;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --text-muted:     #76746e;
  --accent:         #2a78d6;
  --accent-soft:    #e8f0fc;
  --good:           #1a7f4b;
  --good-soft:      #e4f3ea;
  --warn:           #9a6400;
  --warn-soft:      #fbf0d9;
  --bad:            #b3312f;
  --bad-soft:       #fbe8e7;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-5: #e87ba4;
  --series-6: #008300;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(11, 11, 11, .06), 0 4px 16px rgba(11, 11, 11, .04);
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page:           #121211;
    --surface-1:      #1a1a19;
    --surface-2:      #232322;
    --border:         #34342f;
    --border-strong:  #4a4a43;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted:     #98968c;
    --accent:         #3987e5;
    --accent-soft:    #16263c;
    --good:           #4bbd83;
    --good-soft:      #14291e;
    --warn:           #d9a534;
    --warn-soft:      #2b2412;
    --bad:            #e66767;
    --bad-soft:       #2e1817;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page:           #121211;
  --surface-1:      #1a1a19;
  --surface-2:      #232322;
  --border:         #34342f;
  --border-strong:  #4a4a43;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted:     #98968c;
  --accent:         #3987e5;
  --accent-soft:    #16263c;
  --good:           #4bbd83;
  --good-soft:      #14291e;
  --warn:           #d9a534;
  --warn-soft:      #2b2412;
  --bad:            #e66767;
  --bad-soft:       #2e1817;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

/* --- шапка --- */
.top {
  border-bottom: 1px solid var(--border);
  background: var(--surface-1);
  position: sticky; top: 0; z-index: 20;
}
.top-in { display: flex; align-items: center; gap: 16px; height: 56px; }
.brand { font-weight: 650; letter-spacing: -.01em; color: var(--text-primary); }
.brand span { color: var(--accent); }
.top nav { display: flex; gap: 14px; margin-left: auto; align-items: center; }
.top nav a { color: var(--text-secondary); font-size: 14px; }
.top nav a:hover, .top nav a.on { color: var(--text-primary); }

.theme-btn {
  border: 1px solid var(--border); background: var(--surface-2);
  color: var(--text-secondary); border-radius: 8px; height: 30px; width: 34px;
  cursor: pointer; font-size: 14px; line-height: 1;
}
.theme-btn:hover { border-color: var(--border-strong); color: var(--text-primary); }

/* --- общие блоки --- */
.card {
  background: var(--surface-1); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.pad { padding: 18px; }
h1 { font-size: 26px; line-height: 1.2; margin: 24px 0 6px; letter-spacing: -.02em; }
h2 { font-size: 18px; margin: 28px 0 12px; letter-spacing: -.01em; }
h3 { font-size: 15px; margin: 0 0 10px; color: var(--text-secondary); font-weight: 600; }
.lede { color: var(--text-secondary); margin: 0 0 20px; max-width: 70ch; }
.muted { color: var(--text-muted); }
.small { font-size: 13px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* --- форма подбора --- */
.finder { padding: 16px 18px; }
.row { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field > label, .lbl {
  font-size: 12px; color: var(--text-secondary); font-weight: 600;
  text-transform: uppercase; letter-spacing: .04em;
}
input[type="text"], input[type="search"], select, textarea {
  font: inherit; color: var(--text-primary); background: var(--surface-1);
  border: 1px solid var(--border-strong); border-radius: 8px; padding: 7px 10px;
  min-height: 36px;
}
input[type="text"]:focus, select:focus {
  outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent);
}
.w-freq { width: 104px; }
.w-num { width: 92px; }
.w-band { width: 150px; }
.range { display: flex; align-items: center; gap: 6px; }
.range .dash { color: var(--text-muted); }

.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 8px; padding: 8px 16px; min-height: 38px;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
}
.btn:hover { filter: brightness(1.06); }
.btn.ghost {
  background: var(--surface-1); color: var(--text-primary); border-color: var(--border-strong);
}
.btn.small { padding: 5px 10px; min-height: 30px; font-size: 13px; font-weight: 500; }

.toggle-adv {
  background: none; border: 0; color: var(--accent); cursor: pointer;
  font: inherit; font-size: 14px; padding: 4px 0;
}
.adv { margin-top: 14px; border-top: 1px solid var(--border); padding-top: 14px; }
.adv[hidden] { display: none; }
.adv-grid {
  display: grid; gap: 16px 24px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.checks { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.checks label {
  display: flex; align-items: center; gap: 6px; font-size: 13.5px;
  color: var(--text-primary); white-space: nowrap;
}
ul.checks { list-style: none; margin: 0; padding: 0; }

.stop-row { display: flex; gap: 10px; align-items: flex-end; margin-bottom: 8px; }
.errors { color: var(--bad); font-size: 13px; margin: 6px 0 0; }

/* --- пресеты --- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; }
.chip {
  display: inline-flex; flex-direction: column; gap: 2px;
  border: 1px solid var(--border); background: var(--surface-1);
  border-radius: 999px; padding: 7px 14px; font-size: 13.5px; color: var(--text-primary);
}
.chip:hover { border-color: var(--accent); text-decoration: none; background: var(--accent-soft); }
.chip b { font-weight: 600; }
.chip i { font-style: normal; font-size: 12px; color: var(--text-muted); }

/* --- таблицы --- */
table.grid { width: 100%; border-collapse: collapse; font-size: 14px; }
table.grid th {
  text-align: left; font-size: 12px; letter-spacing: .04em; text-transform: uppercase;
  color: var(--text-secondary); font-weight: 600; padding: 10px 10px;
  border-bottom: 1px solid var(--border-strong); white-space: nowrap;
}
table.grid td { padding: 11px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.grid tr:last-child td { border-bottom: 0; }
table.grid tbody tr:hover { background: var(--surface-2); }
.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }

table.specs { width: 100%; border-collapse: collapse; font-size: 14px; }
table.specs th {
  text-align: left; font-weight: 500; color: var(--text-secondary);
  padding: 7px 12px 7px 0; width: 45%; vertical-align: top;
}
table.specs td { padding: 7px 0; font-family: var(--mono); font-variant-numeric: tabular-nums; }
table.specs tr + tr th, table.specs tr + tr td { border-top: 1px solid var(--border); }

/* --- плашки --- */
.badge {
  display: inline-block; border-radius: 999px; padding: 2px 9px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
  border: 1px solid transparent;
}
.badge.ev-sparams { background: var(--good-soft); color: var(--good); border-color: currentColor; }
.badge.ev-datasheet { background: var(--surface-2); color: var(--text-secondary); border-color: var(--border-strong); }
.badge.ev-mixed { background: var(--accent-soft); color: var(--accent); border-color: currentColor; }
.badge.ev-partial { background: var(--warn-soft); color: var(--warn); border-color: currentColor; }
.badge.type { background: var(--surface-2); color: var(--text-secondary); font-weight: 500; }

.pills { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 5px; }
.pill {
  font-size: 12px; border-radius: 6px; padding: 1px 7px;
  border: 1px solid var(--border); color: var(--text-secondary); background: var(--surface-2);
}
.pill.ok { color: var(--good); border-color: color-mix(in oklab, var(--good) 40%, transparent); background: var(--good-soft); }
.pill.fail { color: var(--bad); border-color: color-mix(in oklab, var(--bad) 40%, transparent); background: var(--bad-soft); }
.pill.unknown { color: var(--warn); border-color: color-mix(in oklab, var(--warn) 40%, transparent); background: var(--warn-soft); }

.spark { display: block; width: 92px; height: 26px; }
.spark path, .spark polyline { fill: none; stroke: var(--series-1); stroke-width: 1.5; }
.spark .band { fill: color-mix(in oklab, var(--accent) 14%, transparent); }

/* --- график --- */
.chart-card { padding: 14px 16px 10px; }
.chart-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 8px; }
.chart-head h3 { margin: 0; }
.chart-tools { margin-left: auto; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.chart-tools label { font-size: 13px; color: var(--text-secondary); display: flex; gap: 5px; align-items: center; }
.rfchart { position: relative; width: 100%; height: 420px; touch-action: none; }
.rfchart canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.rfchart:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.rf-tip {
  position: absolute; pointer-events: none; z-index: 5; min-width: 150px;
  background: var(--surface-1); border: 1px solid var(--border-strong);
  border-radius: 8px; box-shadow: var(--shadow); padding: 8px 10px; font-size: 12.5px;
  color: var(--text-primary); opacity: 0; transition: opacity .08s;
}
.rf-tip.on { opacity: 1; }
.rf-tip .f { font-weight: 650; margin-bottom: 4px; font-family: var(--mono); }
.rf-tip .r { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.rf-tip .sw { width: 9px; height: 9px; border-radius: 2px; flex: none; }
.rf-tip .v { margin-left: auto; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.rf-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 8px 2px 2px; }
.rf-legend button {
  display: inline-flex; align-items: center; gap: 6px; background: none; border: 0;
  color: var(--text-secondary); font: inherit; font-size: 13px; cursor: pointer; padding: 2px 0;
}
.rf-legend button[aria-pressed="false"] { opacity: .4; }
.rf-legend .sw { width: 14px; height: 3px; border-radius: 2px; }
.rf-legend .sw.dash { background-image: none; height: 0; border-top: 3px dotted currentColor; }
.hint { font-size: 12.5px; color: var(--text-muted); margin: 4px 2px 0; }

/* --- карточка фильтра --- */
.part-head { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; margin: 22px 0 18px; }
.part-head h1 { margin: 0 0 4px; }
.part-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.cols { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 18px; }

.notice {
  border-left: 3px solid var(--warn); background: var(--warn-soft);
  padding: 10px 12px; border-radius: 0 8px 8px 0; font-size: 13.5px; color: var(--text-primary);
}
.notice.info { border-color: var(--accent); background: var(--accent-soft); }

.empty { text-align: center; padding: 42px 16px; color: var(--text-secondary); }
.empty b { display: block; font-size: 17px; color: var(--text-primary); margin-bottom: 6px; }

.foot { margin: 48px 0 28px; color: var(--text-muted); font-size: 13px; }
.foot a { color: var(--text-secondary); }

.cmp-bar {
  position: sticky; bottom: 0; z-index: 15; margin-top: 16px;
  background: var(--surface-1); border: 1px solid var(--border-strong);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 10px 14px; display: flex; align-items: center; gap: 12px; font-size: 14px;
}
.cmp-bar[hidden] { display: none; }

@media (max-width: 900px) {
  .cols { grid-template-columns: minmax(0, 1fr); }
  .rfchart { height: 320px; }
  table.grid { font-size: 13.5px; }
  .hide-sm { display: none; }
}

/* --- главная: плитки инструментов --- */
.tool-grid {
  display: grid; gap: 16px; margin: 20px 0 8px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
a.tool { display: block; color: inherit; transition: border-color .12s, transform .12s; }
a.tool:hover { text-decoration: none; border-color: var(--accent); }
a.tool h3 { color: var(--text-primary); margin: 8px 0 6px; font-size: 16px; }
a.tool p { margin: 0 0 6px; }
a.tool.soon { opacity: .72; }
a.tool.soon:hover { opacity: 1; }
.tool-icon { font-size: 22px; line-height: 1; }

.top nav a.soon { color: var(--text-muted); }
.top nav a sup {
  font-size: 9px; text-transform: uppercase; letter-spacing: .04em;
  margin-left: 3px; color: var(--accent); vertical-align: super;
}
ul.plan { margin: 0; padding-left: 20px; color: var(--text-secondary); font-size: 14px; }
ul.plan li { margin: 4px 0; }

/* --- узкий экран --- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
input[type="text"], input[type="search"], select { max-width: 100%; }

@media (max-width: 720px) {
  .top-in { height: auto; min-height: 56px; padding: 8px 0; flex-wrap: wrap; gap: 8px 12px; }
  .top nav { margin-left: 0; width: 100%; gap: 12px; flex-wrap: wrap; }
  .brand { flex: 1 0 auto; }
  .theme-btn { margin-left: auto; }
  h1 { font-size: 22px; }
  .lede { font-size: 14px; }
  .finder { padding: 14px; }
  .row { gap: 10px; }
  .w-freq { width: 88px; }
  .w-num { width: 74px; }
  .w-band { width: 118px; }
  .field .btn { width: 100%; }
  .chip { padding: 6px 12px; }
  .tool-grid { grid-template-columns: 1fr; }
  .part-head { gap: 10px; }
  .part-actions { margin-left: 0; width: 100%; }
}