:root {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-border: #dde3e8;
  --color-text: #1c2733;
  --color-text-muted: #5b6b7a;
  --color-primary: #0f6f5c;
  --color-primary-dark: #0b5747;
  --color-danger: #b3261e;
  --color-danger-bg: #fdecea;
  --color-success-bg: #e8f5ee;
  --color-success-text: #1e7a4c;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 30, 40, 0.08);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-tap-highlight-color: transparent;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header.topbar {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

header.topbar .brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.2px;
}

header.topbar .brand small {
  display: block;
  font-weight: 400;
  opacity: 0.85;
  font-size: 0.75rem;
}

header.topbar nav {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

header.topbar button, header.topbar a.button {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
}

main.container {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

h1 { font-size: 1.4rem; margin: 0 0 6px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
h3 { font-size: 1rem; margin: 18px 0 10px; }
p.muted, .muted { color: var(--color-text-muted); font-size: 0.92rem; }

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  margin-top: 14px;
}
label:first-child { margin-top: 0; }

input[type="text"], input[type="email"], input[type="password"], input[type="date"],
select, textarea {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  color: var(--color-text);
  font-family: inherit;
}

textarea { min-height: 64px; resize: vertical; }

button, a.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
}

button:hover, a.button:hover { background: var(--color-primary-dark); }
button:disabled { opacity: 0.55; cursor: not-allowed; }

button.secondary, a.button.secondary {
  background: transparent;
  color: var(--color-primary);
}

button.danger { background: var(--color-danger); border-color: var(--color-danger); }
button.block, a.button.block { width: 100%; }

.question-row {
  border-top: 1px solid var(--color-border);
  padding: 14px 0;
}
.question-row:first-of-type { border-top: none; padding-top: 4px; }
.question-text { font-weight: 600; margin-bottom: 10px; font-size: 0.96rem; }

.yesno {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}
.yesno label {
  flex: 1;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
}
.yesno input { accent-color: var(--color-primary); width: 18px; height: 18px; }
.yesno label.checked { border-color: var(--color-primary); background: #eef7f4; }

.alert {
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.alert.error { background: var(--color-danger-bg); color: var(--color-danger); }
.alert.success { background: var(--color-success-bg); color: var(--color-success-text); }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge.admin { background: #fde7d0; color: #93500a; }
.badge.user { background: #e1eefb; color: #0c5590; }
.badge.active { background: var(--color-success-bg); color: var(--color-success-text); }
.badge.inactive { background: var(--color-danger-bg); color: var(--color-danger); }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row.between { justify-content: space-between; }
.chip-list { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  background: #eef2f5;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.8rem;
}

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,30,40,0.5);
  display: flex; align-items: flex-end; justify-content: center;
  z-index: 50;
}
.modal {
  background: #fff; border-radius: var(--radius) var(--radius) 0 0;
  width: 100%; max-width: 480px; padding: 20px; max-height: 85vh; overflow: auto;
}
@media (min-width: 560px) {
  .modal-backdrop { align-items: center; }
  .modal { border-radius: var(--radius); }
}

code.key {
  display: block;
  background: #10221d;
  color: #a8f0d6;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  word-break: break-all;
  margin: 8px 0;
}

footer.hint { text-align: center; padding: 20px; color: var(--color-text-muted); font-size: 0.8rem; }

@media (max-width: 480px) {
  main.container { padding: 14px 10px 50px; }
  .card { padding: 16px; }
}