:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background: #eef4f8;
  color: #172a3a;
  --blue: #006da8;
  --blue-dark: #004b73;
  --yellow: #f2c400;
  --line: #c9d7e1;
  --muted: #60788b;
  --white: #ffffff;
  --danger: #a72a2a;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: linear-gradient(100deg, #003b5d, #0077b6);
  border-bottom: 5px solid var(--yellow);
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(1.5rem, 3vw, 2.25rem); }
h2 { margin-bottom: 18px; }
.eyebrow { margin-bottom: 5px; font-size: .76rem; font-weight: 800; letter-spacing: .14em; }

main { width: min(1180px, calc(100% - 32px)); margin: 32px auto 64px; }
.hidden { display: none !important; }

.card, .summary-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(24, 57, 79, .08);
}

.card { padding: clamp(20px, 4vw, 34px); margin-bottom: 24px; }
.login-card { width: min(520px, 100%); margin: 80px auto; text-align: center; }
.login-form { display: grid; gap: 16px; text-align: left; }
.login-hint { margin: 18px 0; font-size: .85rem; color: #4a6274; line-height: 1.5; }
.login-card a { color: var(--blue-dark); }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card { padding: 21px 24px; border-left: 5px solid var(--blue); }
.summary-card span { display: block; color: var(--muted); font-size: .87rem; }
.summary-card strong { display: block; margin-top: 7px; font-size: 2rem; color: var(--blue-dark); }

.section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.span-2 { grid-column: 1 / -1; }
.field { display: grid; gap: 7px; color: #304b5e; font-size: .87rem; font-weight: 650; }
.field.grow { margin-bottom: 18px; }
.user-filters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.user-filters .field { min-width: 0; }
.filter-search { grid-column: 1 / -1; }
.filter-results { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }
.filter-results p { margin: 0; color: var(--muted); font-size: .9rem; }
.filter-results .button { font-size: .85rem; }
.period-badges { display: flex; flex-wrap: wrap; gap: 5px; }
.badge.paid { color: #085b80; background: #e0f1fa; }
.badge.waiting { color: #765118; background: #fff2cf; }
.expiry-cell { min-width: 155px; }
.expiry-detail { display: block; margin-top: 5px; color: #496375; font-size: .76rem; line-height: 1.4; }
.plan-cell { min-width: 175px; max-width: 260px; }
.contracted-plan + .contracted-plan { border-top: 1px solid var(--line); margin-top: 9px; padding-top: 9px; }
.contracted-plan strong { font-size: .84rem; }
.plan-empty { color: var(--muted); font-size: .82rem; }
.purchase-plans { list-style: none; padding: 0; }
.purchase-plans li { border: 1px solid var(--line); border-radius: 9px; padding: 12px; margin-bottom: 10px; }
.purchase-plans span, .purchase-plans small { display: block; margin-top: 5px; color: #496375; line-height: 1.4; }

input, select, textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font: inherit;
  color: #172a3a;
  background: #fbfdff;
  border: 1px solid #aebfcb;
  border-radius: 9px;
}

textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(0, 109, 168, .18); border-color: var(--blue); }

.button {
  min-height: 42px;
  padding: 10px 17px;
  border: 1px solid transparent;
  border-radius: 9px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}
.button:disabled { opacity: .55; cursor: wait; }
.button.primary { color: var(--white); background: var(--blue); }
.button.secondary { color: var(--blue-dark); background: var(--white); border-color: #8da8ba; }
.button.danger { color: var(--danger); background: #fff; border-color: #dcaaaa; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 11px; text-align: left; border-bottom: 1px solid #dce5eb; vertical-align: middle; }
th { color: #496375; font-size: .76rem; letter-spacing: .05em; text-transform: uppercase; }
td { font-size: .9rem; }
.identity strong, .identity small { display: block; }
.identity small { color: var(--muted); margin-top: 3px; }
.badge { display: inline-block; padding: 5px 9px; border-radius: 999px; font-size: .75rem; font-weight: 800; }
.badge.active { color: #11633f; background: #dff4e9; }
.badge.inactive { color: #7b3434; background: #fae7e7; }
.inline-actions { display: flex; gap: 7px; }
.inline-actions { flex-wrap: wrap; min-width: 130px; }
.phone-hint { display: block; color: #496375; margin-top: 5px; white-space: nowrap; }
dialog { width: min(760px, calc(100% - 24px)); max-height: 88vh; overflow: auto; padding: clamp(18px, 4vw, 30px); border: 1px solid var(--line); border-radius: 16px; color: #172a3a; }
dialog::backdrop { background: rgba(3, 25, 40, .65); }
.diagnostic-guidance, .diagnostic-empty { background: #eef4f8; border-left: 4px solid #006da8; padding: 14px; line-height: 1.5; }
.diagnostic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.diagnostic-grid dt { font-size: .8rem; color: #496375; }
.diagnostic-grid dd { margin: 4px 0 0; overflow-wrap: anywhere; }
.diagnostic-events { padding-left: 22px; }
.diagnostic-events li { margin-bottom: 14px; font-size: .9rem; }
.diagnostic-events small { display: block; color: #496375; margin-top: 4px; }
@media (max-width: 540px) { .diagnostic-grid { grid-template-columns: 1fr; } }
.inline-actions .button { min-height: 34px; padding: 6px 9px; font-size: .78rem; }
.status { min-height: 22px; margin: 14px 0 0; color: var(--muted); }
.status.error { color: var(--danger); }
.status.success { color: #11633f; }

@media (max-width: 760px) {
  .summary-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .user-filters { grid-template-columns: 1fr; }
  .filter-search { grid-column: auto; }
  .span-2 { grid-column: auto; }
  .topbar { padding: 20px; }
  main { width: min(100% - 20px, 1180px); margin-top: 18px; }
}