:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b36;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --danger: #ff5c5c;
  --success: #35c97e;
  --warn: #f5b942;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.5;
}

nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
}

nav a { color: var(--text); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--accent); }
nav .spacer { flex: 1; }

main { max-width: 1000px; margin: 0 auto; padding: 24px; }

/* Tables commonly run wider than a phone screen (6-8 columns in admin views) —
   let them scroll horizontally inside their own card rather than squeezing
   columns unreadably thin or overflowing the page itself. */
.card { overflow-x: auto; }

@media (max-width: 600px) {
  nav { padding: 10px 16px; gap: 8px 14px; font-size: 14px; }
  main { padding: 16px; }
  .tabs { overflow-x: auto; white-space: nowrap; flex-wrap: nowrap; }
  .tabs a { padding: 8px 12px; flex: 0 0 auto; }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
}

h1, h2, h3 { font-weight: 600; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 16px;
}

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 500; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
}
.btn:hover { opacity: 0.9; }
.btn.danger { background: var(--danger); }
.btn.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }

input, select {
  background: #0c0e12;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  width: 100%;
  margin-bottom: 10px;
  /* iOS Safari auto-zooms the page on focus for any input under 16px —
     16px here is the fix, not a design choice. */
  font-size: 16px;
}

label { font-size: 13px; color: var(--muted); }

.badge { padding: 2px 8px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.active { background: rgba(53,201,126,.15); color: var(--success); }
.badge.expired, .badge.blocked, .badge.cancelled { background: rgba(255,92,92,.15); color: var(--danger); }
.badge.pending_payment, .badge.expiring { background: rgba(245,185,66,.15); color: var(--warn); }

.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 14px; margin: 8px 0; }
.success-text { color: var(--success); font-size: 14px; margin: 8px 0; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tabs a { padding: 10px 16px; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a.active { color: var(--text); border-color: var(--accent); }