:root {
  --bg: #0f1117;
  --card: #171a23;
  --border: #262a37;
  --text: #e8e9ee;
  --muted: #9096a8;
  --accent: #4f7cff;
  --paid: #3bc17a;
  --late: #e5534b;
  --pending: #d8a13a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.screen { min-height: 100vh; }
.screen[hidden] { display: none !important; }
#login-screen { display: flex; align-items: center; justify-content: center; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 320px;
}
.card h1 { margin: 0 0 2px; font-size: 22px; }
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 14px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 14px; }
input, select {
  width: 100%;
  margin-top: 6px;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #10121a;
  color: var(--text);
  font-size: 14px;
}
button {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
}
.link-btn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 13px; }
.error { color: var(--late); font-size: 13px; min-height: 18px; margin: 10px 0 0; }

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 18px; }
.header-right { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--muted); }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  padding: 20px 28px 0;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.stat-card .value { font-size: 26px; font-weight: 700; }
.stat-card .label { color: var(--muted); font-size: 12px; margin-top: 4px; }

.toolbar {
  display: flex;
  gap: 10px;
  padding: 20px 28px 0;
}
.toolbar input { max-width: 280px; }
.toolbar select { max-width: 200px; }

table { width: 100%; border-collapse: collapse; margin: 20px 28px; width: calc(100% - 56px); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }

.badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-paid { background: rgba(59,193,122,.15); color: var(--paid); }
.badge-late { background: rgba(229,83,75,.15); color: var(--late); }
.badge-pending, .badge-partial { background: rgba(216,161,58,.15); color: var(--pending); }
.badge-unknown { background: rgba(144,150,168,.15); color: var(--muted); }

.row-link { cursor: pointer; }
.row-link:hover { background: rgba(255,255,255,.03); }
.small-btn {
  padding: 4px 10px;
  width: auto;
  font-size: 12px;
  border-radius: 6px;
  background: var(--border);
  color: var(--text);
}
.small-btn.danger { background: rgba(229,83,75,.15); color: var(--late); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
  z-index: 10;
}
.modal-overlay[hidden] { display: none !important; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 640px;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-header h2 { margin: 0; font-size: 18px; }
.member-info { color: var(--muted); font-size: 13px; margin-bottom: 20px; line-height: 1.6; }
.member-info strong { color: var(--text); }

#subscriptions-table { margin: 0 0 20px; width: 100%; }

#subscription-form { border-top: 1px solid var(--border); padding-top: 16px; }
#subscription-form h4 { margin: 0 0 12px; font-size: 14px; color: var(--muted); font-weight: 500; }
.form-row { display: flex; gap: 14px; }
.form-row label { flex: 1; }
.form-actions { display: flex; gap: 10px; align-items: center; }
.form-actions button[type="submit"] { width: auto; padding: 9px 20px; }