:root {
  --background: #070b12;
  --surface: #101826;
  --surface-2: #172235;
  --border: #29364a;
  --text: #f3f7fc;
  --muted: #9eacc0;
  --accent: #62e6a7;
  --danger: #ff6b78;
  --radius: 16px;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--text);
  background: var(--background);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top right, #14243c, var(--background) 48%); }
button, input, select { font: inherit; }
button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: .65rem 1rem;
  border: 1px solid transparent;
  border-radius: 10px;
  color: #03150e;
  background: var(--accent);
  font-weight: 750;
  cursor: pointer;
  text-decoration: none;
}
button.secondary { color: var(--text); background: var(--surface-2); border-color: var(--border); }
button.danger { color: white; background: #8d2632; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid #93ffd0; outline-offset: 2px; }
.center-card { width: min(560px, calc(100% - 2rem)); margin: 12vh auto; padding: 2rem; border: 1px solid var(--border); border-radius: var(--radius); background: rgba(16, 24, 38, .95); }
.eyebrow { margin: 0; color: var(--accent); text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 800; }
h1, h2 { margin: .35rem 0 1rem; }
p { color: var(--muted); line-height: 1.55; }
.shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; overflow: auto; padding: 1.25rem; border-right: 1px solid var(--border); background: rgba(7, 11, 18, .92); }
.brand { font-size: 1.25rem; font-weight: 850; margin-bottom: 1.25rem; }
.brand span { color: var(--accent); }
.club-select, input, select { width: 100%; padding: .7rem .75rem; border: 1px solid var(--border); border-radius: 10px; color: var(--text); background: var(--surface); }
nav { display: grid; gap: .25rem; margin-top: 1rem; }
nav button { justify-content: flex-start; min-height: 36px; padding: .45rem .65rem; color: var(--muted); background: transparent; font-weight: 600; }
nav button.active { color: var(--text); background: var(--surface-2); border-color: var(--border); }
.content { min-width: 0; padding: 2rem clamp(1rem, 4vw, 4rem); }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1rem; }
.card { min-width: 0; padding: 1.2rem; border: 1px solid var(--border); border-radius: var(--radius); background: rgba(16, 24, 38, .9); }
.metric { font-size: 2rem; font-weight: 850; color: var(--accent); }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .65rem; border-bottom: 1px solid var(--border); text-align: left; max-width: 340px; overflow-wrap: anywhere; }
th { color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
label { display: grid; gap: .4rem; color: var(--muted); font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1rem; }
.notice { padding: .8rem 1rem; border-left: 3px solid var(--accent); background: var(--surface-2); color: var(--text); }
.danger-zone { margin-top: 2rem; border-color: #682a32; }
.hidden { display: none !important; }

@media (max-width: 760px) {
  .shell { display: block; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content { padding: 1.25rem 1rem; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .form-grid { grid-template-columns: 1fr; }
}