:root {
  --primary: #4A6FA5;
  --primary-dark: #35527C;
  --accent: #C9843E;
  --ink: #1C2230;
  --ink-soft: #56607A;
  --line: #D9DEE8;
  --line-strong: #6B7390;
  --bg: #F6F7FB;
  --panel: #FFFFFF;
  --ok: #2E7D53;
  --warn: #B4721E;
  --bad: #B3453C;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(28, 34, 48, .06), 0 4px 14px rgba(28, 34, 48, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--primary); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 660px; margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.topbar .wrap { display: flex; align-items: center; gap: 24px; height: 62px; }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand span { color: var(--primary); }
.topnav { display: flex; gap: 20px; margin-left: auto; align-items: center; flex-wrap: wrap; }
.topnav a { color: var(--ink-soft); text-decoration: none; font-size: .94rem; white-space: nowrap; }
.topnav a:hover, .topnav a.on { color: var(--primary); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: rgba(107, 115, 144, .10);
  color: var(--ink); font-size: .94rem; font-weight: 500;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  font-family: inherit;
}
.btn:hover { border-color: var(--primary); background: rgba(74, 111, 165, .12); color: var(--primary-dark); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn-danger { border-color: var(--bad); color: var(--bad); background: rgba(179, 69, 60, .08); }
.btn-danger:hover { background: var(--bad); color: #fff; }
.btn-sm { padding: 5px 11px; font-size: .85rem; }

/* ---------- panels ---------- */
.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.panel-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.panel-head h2 { margin: 0; }
.panel-head .spacer { margin-left: auto; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }

/* ---------- module cards ---------- */
.mod-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; display: flex; flex-direction: column; gap: 8px; min-height: 150px;
}
.mod-card.off { background: #FAFBFD; border-style: dashed; }
.mod-card.locked { opacity: .72; }
.mod-card h3 { margin: 0; font-size: 1rem; }
.mod-card p { margin: 0; font-size: .88rem; color: var(--ink-soft); flex: 1; }
.mod-card .row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: auto; }

.tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  font-size: .74rem; font-weight: 600; letter-spacing: .02em;
  border: 1px solid var(--line-strong); color: var(--ink-soft);
  background: rgba(107, 115, 144, .10); white-space: nowrap;
}
.tag-core { border-color: var(--ok); color: var(--ok); background: rgba(46, 125, 83, .10); }
.tag-standard { border-color: var(--primary); color: var(--primary-dark); background: rgba(74, 111, 165, .10); }
.tag-premium { border-color: var(--accent); color: #8A5A22; background: rgba(201, 132, 62, .12); }
.tag-on { border-color: var(--ok); color: #fff; background: var(--ok); }
.tag-off { border-color: var(--line-strong); }

/* ---------- forms ---------- */
label { display: block; font-size: .86rem; font-weight: 600; color: var(--ink-soft); margin-bottom: 5px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], select, textarea {
  width: 100%; padding: 9px 12px; font: inherit; font-size: .95rem;
  border: 1px solid var(--line-strong); border-radius: 8px; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(74, 111, 165, .35); border-color: var(--primary); }
textarea { min-height: 140px; resize: vertical; }
.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 16px; flex-wrap: wrap; }
.field-row .field { flex: 1 1 200px; }
.check { display: flex; align-items: center; gap: 9px; font-size: .92rem; font-weight: 500; color: var(--ink); }
.check input { width: 17px; height: 17px; accent-color: var(--primary); }
.hint { font-size: .82rem; color: var(--ink-soft); margin-top: 4px; }

.alert { padding: 11px 15px; border-radius: 8px; margin-bottom: 16px; font-size: .92rem; }
.alert-error { background: rgba(179, 69, 60, .10); border: 1px solid var(--bad); color: #8A2F28; }
.alert-info { background: rgba(74, 111, 165, .10); border: 1px solid var(--primary); color: var(--primary-dark); }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); white-space: nowrap; }
tbody tr:hover { background: #FAFBFD; }

/* ---------- site nav ---------- */
.sitenav { background: var(--panel); border-bottom: 1px solid var(--line); }
.sitenav .wrap { display: flex; gap: 4px; overflow-x: auto; padding-top: 6px; padding-bottom: 6px; }
.sitenav a {
  padding: 7px 13px; border-radius: 8px; font-size: .9rem; text-decoration: none;
  color: var(--ink-soft); white-space: nowrap;
}
.sitenav a:hover { background: rgba(74, 111, 165, .10); color: var(--primary-dark); }
.sitenav a.on { background: var(--primary); color: #fff; }

/* ---------- hero / stats ---------- */
.hero { padding: 56px 0 40px; }
.hero h1 { font-size: 2.6rem; max-width: 16ch; }
.hero p.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 60ch; }
.stats { display: flex; gap: 28px; flex-wrap: wrap; margin: 22px 0; }
.stat { min-width: 110px; }
.stat b { display: block; font-size: 1.7rem; line-height: 1.1; }
.stat span { font-size: .84rem; color: var(--ink-soft); }

.countdown { display: flex; gap: 14px; flex-wrap: wrap; }
.countdown div { background: var(--primary); color: #fff; border-radius: var(--radius); padding: 14px 18px; min-width: 84px; text-align: center; }
.countdown b { display: block; font-size: 1.9rem; line-height: 1.1; }
.countdown span { font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; opacity: .9; }

.cat-head { margin: 30px 0 12px; padding-bottom: 6px; border-bottom: 2px solid var(--line); }
.footer { padding: 32px 0; color: var(--ink-soft); font-size: .88rem; border-top: 1px solid var(--line); margin-top: 40px; }

.empty { text-align: center; padding: 40px 20px; color: var(--ink-soft); }
.scaffold-spec { background: #FAFBFD; border: 1px dashed var(--line-strong); border-radius: var(--radius); padding: 18px; }
.scaffold-spec code { background: rgba(107, 115, 144, .12); padding: 2px 6px; border-radius: 4px; font-size: .85rem; }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  .topbar .wrap { height: auto; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; }
  .topnav { margin-left: 0; width: 100%; }
}