/* «Коло» — тепла темна тема з бурштиновим акцентом. Без фреймворків. */
:root {
  --bg: #0e1014; --panel: #161a22; --panel2: #1c212c;
  --line: #262c38; --text: #e9ebf1; --mut: #8f97a8;
  --gold: #e8b04b; --gold2: #c9922f; --green: #4cc38a; --red: #e5654d;
}
* { box-sizing: border-box; margin: 0; }
html { color-scheme: dark; }
body {
  background: var(--bg); color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

.demo-band {
  background: #241d10; color: #d9b675; font-size: 13px;
  text-align: center; padding: 6px 12px; letter-spacing: .2px;
}
.top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(14,16,20,.92);
  backdrop-filter: blur(8px); z-index: 5;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800; letter-spacing: .5px; color: var(--text);
}
.logo:hover { text-decoration: none; }
.ring {
  width: 22px; height: 22px; border: 5px solid var(--gold);
  border-radius: 50%; display: inline-block;
}
.ring.big { width: 34px; height: 34px; border-width: 8px; flex: none; }
.top nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.top nav a { color: var(--mut); font-weight: 600; }
.top nav a.on, .top nav a:hover { color: var(--text); text-decoration: none; }
.who { color: var(--mut); font-size: 14px; }
.inline { display: inline; }

main { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: 28px clamp(16px, 4vw, 40px) 60px; }
.foot {
  border-top: 1px solid var(--line); color: var(--mut); font-size: 13px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 18px clamp(16px, 4vw, 40px);
}

h1 { font-size: clamp(26px, 4.5vw, 40px); line-height: 1.15; margin: 10px 0 14px; letter-spacing: -.5px; }
h2 { font-size: 21px; margin: 34px 0 10px; }
section > p { color: var(--mut); max-width: 640px; }

.btn {
  display: inline-block; border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); color: var(--text); font: inherit; font-weight: 700;
  padding: 9px 16px; cursor: pointer; transition: .15s;
}
.btn:hover { border-color: var(--gold); text-decoration: none; }
.btn.gold { background: var(--gold); border-color: var(--gold); color: #1a1405; }
.btn.gold:hover { background: var(--gold2); }
.btn.ghost { background: transparent; }
.btn.big { padding: 13px 22px; font-size: 17px; border-radius: 12px; }
.btn.tiny { padding: 4px 10px; font-size: 13px; border-radius: 8px; }

/* Вітрина */
.hero { padding: 34px 0 10px; }
.hero h1 { max-width: 700px; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero > p { color: var(--mut); max-width: 620px; font-size: 18px; }
.hero-cta { display: flex; gap: 12px; margin: 22px 0 8px; flex-wrap: wrap; }
.hero-nums { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-top: 30px; }
.hero-nums div { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.hero-nums b { font-size: 28px; display: block; }
.hero-nums span { color: var(--mut); font-size: 13px; }

.invited {
  background: #17251c; border: 1px solid #2a4636; color: #9fd8b4;
  border-radius: 12px; padding: 10px 14px; margin: 14px 0; max-width: 640px;
}

.demo-entry { margin-top: 26px; }
.roles { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 14px; }
.roles form { display: contents; }
.role-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  color: var(--text); font: inherit; text-align: left; padding: 18px;
  display: flex; flex-direction: column; gap: 6px; cursor: pointer; transition: .15s;
}
.role-card:hover { border-color: var(--gold); transform: translateY(-2px); }
.role-card span { font-size: 26px; }
.role-card i { color: var(--mut); font-style: normal; font-size: 14px; }

.p-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin-top: 14px; }
.p-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px; display: flex; flex-direction: column; gap: 4px;
}
.p-card.off { opacity: .5; }
.p-ico { font-size: 26px; }
.p-card i { color: var(--mut); font-style: normal; font-size: 13px; }
.p-card p { color: var(--gold); font-size: 14px; margin-top: 4px; }

.how3 ol { counter-reset: n; list-style: none; padding: 0; margin-top: 14px; display: grid; gap: 10px; }
.how3 li {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 16px 14px 58px; position: relative;
}
.how3 li::before {
  counter-increment: n; content: counter(n);
  position: absolute; left: 16px; top: 14px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--gold); color: #1a1405; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.how3 b { display: block; }
.how3 span { color: var(--mut); font-size: 14px; }

/* Кабінети */
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 18px 0; }
.metric { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.metric b { font-size: 30px; display: block; font-variant-numeric: tabular-nums; transition: color .3s; }
.metric b.bump { color: var(--gold); }
.metric span { color: var(--mut); font-size: 13px; }

.club-card {
  background: linear-gradient(120deg, #20232b, #191c23 60%);
  border: 1px solid var(--line); border-radius: 18px; padding: 18px;
  display: flex; align-items: center; gap: 14px; max-width: 440px;
}
.club-card b { font-size: 18px; display: block; }
.club-card i { color: var(--mut); font-style: normal; font-size: 13px; }
.club-card .chip { margin-left: auto; }

.refbox { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-top: 26px; }
.refbox h2 { margin-top: 0; }
.copyrow { display: flex; gap: 8px; margin: 12px 0 6px; flex-wrap: wrap; }
.copyrow input {
  flex: 1 1 240px; background: var(--bg); color: var(--gold);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
  font: 14px ui-monospace, monospace;
}

.tbl { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 15px; }
.tbl th { text-align: left; color: var(--mut); font-size: 13px; font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl tr:last-child td { border-bottom: 0; }
.row-off td { opacity: .55; }
.mut { color: var(--mut); }

.chip {
  display: inline-block; font-size: 12px; font-weight: 700;
  border-radius: 20px; padding: 2px 10px; background: var(--panel2);
  border: 1px solid var(--line); vertical-align: middle;
}
.chip.green { color: var(--green); border-color: #2a4636; }
.chip.red { color: var(--red); border-color: #4a2a24; }
.chip.gold { color: var(--gold); border-color: #4a3c1d; }
.chip.live { color: var(--green); border-color: #2a4636; }
.chip.live.dead { color: var(--mut); }

.spark { width: 100%; height: 120px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; margin-top: 10px; }
.spark .bars rect { fill: #3a4356; }
.spark .line { stroke: var(--gold); stroke-width: 2; }

.feed { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 6px; max-height: 340px; overflow: auto; }
.feed li {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 12px; font-size: 14px; display: flex; gap: 8px; align-items: baseline;
}
.feed li.fresh { animation: flash 1.2s ease-out; }
@keyframes flash { from { background: #2b2413; border-color: var(--gold); } }
.feed .ico { flex: none; }
.feed code { color: var(--gold); }
.feed time { margin-left: auto; color: var(--mut); font-size: 12px; }

.searchrow { display: flex; gap: 8px; margin: 10px 0; }
.searchrow input {
  flex: 1 1 200px; max-width: 340px; background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; font: inherit;
}

.addbox { margin-top: 12px; }
.addbox summary { list-style: none; width: max-content; }
.addbox summary::-webkit-details-marker { display: none; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.grid-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--mut); }
.grid-form input {
  background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 9px; padding: 9px 11px; font: inherit;
}
.grid-form button { align-self: end; }

/* Вхід/реєстрація */
.authbox { max-width: 420px; margin: 30px auto; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.authbox h1 { margin-top: 0; font-size: 28px; }
.authbox form { display: grid; gap: 12px; margin-top: 14px; }
.authbox label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--mut); }
.authbox input {
  background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 12px; font: inherit;
}
.alert { background: #2a1713; border: 1px solid #4a2a24; color: #f0a597; border-radius: 10px; padding: 10px 12px; margin-top: 10px; }

.how { max-width: 680px; }
.how p, .how li { color: #c6cbd6; }
.how ul { padding-left: 20px; }

@media (max-width: 560px) {
  .top { padding: 10px 14px; }
  .top nav { gap: 8px; font-size: 14px; }
  .who { display: none; }
  .metric b { font-size: 24px; }
  .tbl { font-size: 13px; }
  .tbl th, .tbl td { padding: 7px 6px; }
  .copyrow input { font-size: 12px; }
}