:root {
  --blue: #2457a6;
  --blue2: #17427f;
  --bg: #f3f6fa;
  --text: #172033;
  --muted: #667085;
  --border: #d8dee9;
  --danger: #b42318;
  --success: #177245;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  line-height: 1.45;
}
.topbar {
  min-height: 64px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(20px, calc((100% - 1180px) / 2));
  gap: 20px;
}
.brand {
  font-size: 1.2rem;
  font-weight: 750;
  color: var(--blue2);
  text-decoration: none;
}
.topbar nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.topbar nav a {
  color: var(--text);
  text-decoration: none;
}
.topbar nav a:hover {
  color: var(--blue);
}
.container {
  max-width: 1180px;
  margin: 32px auto;
  padding: 0 20px;
}
.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}
h1 {
  font-size: 1.85rem;
  margin: 0 0 6px;
}
h2 {
  font-size: 1.25rem;
  margin: 0 0 18px;
}
h3 {
  font-size: 1.05rem;
  margin: 24px 0 10px;
}
.muted {
  color: var(--muted);
}
.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 2px 8px rgba(16, 24, 40, 0.04);
}
.grid {
  display: grid;
  gap: 22px;
}
.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.auth-card {
  max-width: 440px;
  margin: 60px auto;
}
form {
  display: grid;
  gap: 14px;
}
label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  font-size: 0.94rem;
}
input,
select,
textarea {
  width: 100%;
  border: 1px solid #bfc8d6;
  border-radius: 7px;
  padding: 10px 11px;
  font: inherit;
  background: #fff;
  color: var(--text);
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid #b8d2fa;
  border-color: var(--blue);
}
button,
.button {
  border: 0;
  border-radius: 7px;
  background: var(--blue);
  color: #fff;
  padding: 10px 15px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
button:hover,
.button:hover {
  background: var(--blue2);
}
button.danger {
  background: var(--danger);
}
button.small {
  padding: 6px 9px;
  font-size: 0.83rem;
}
.button.secondary {
  background: #e7edf6;
  color: var(--text);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.check {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
}
.check input {
  width: auto;
}
.alert {
  padding: 11px 13px;
  border-radius: 7px;
  margin: 0 0 16px;
}
.alert.success {
  background: #e9f7ef;
  color: #11683c;
}
.alert.error {
  background: #fdecea;
  color: #912018;
}
.alert.warning {
  background: #fff4d6;
  color: #805b00;
}
.occupancy {
  display: grid;
  gap: 8px;
}
.busy-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  background: #fff0ef;
  border-left: 5px solid #d92d20;
  padding: 12px 14px;
  border-radius: 6px;
}
.busy-row > div {
  display: grid;
  gap: 2px;
}
.free-day {
  background: #eaf8ef;
  color: #176b41;
  padding: 15px;
  border-radius: 7px;
}
.table-wrap {
  overflow-x: auto;
  margin-top: 22px;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}
th,
td {
  text-align: left;
  border-bottom: 1px solid var(--border);
  padding: 10px 9px;
  vertical-align: middle;
}
th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}
td form {
  display: inline-grid;
}
.compact-list {
  display: grid;
  gap: 7px;
  margin-top: 18px;
}
.compact-list form {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 7px;
}
.inline-form {
  display: flex;
  align-items: center;
  gap: 6px;
}
.inline-form input {
  min-width: 115px;
  padding: 6px;
}
#booking-result {
  margin-top: 3px;
}
#booking-result .alert {
  margin: 0;
}
.booking-actions {
  display: grid;
  gap: 8px;
  min-width: 190px;
}
.booking-actions details form {
  margin-top: 8px;
}
.booking-actions details label {
  font-size: 0.8rem;
}
.booking-actions input {
  padding: 6px;
}
.status {
  display: inline-block;
  border-radius: 999px;
  padding: 4px 9px;
  background: #e7edf6;
  color: #344054;
  font-size: 0.82rem;
  font-weight: 700;
}
.status-open {
  background: #fff4d6;
  color: #805b00;
}
.status-released,
.status-partially_released {
  background: #e9f7ef;
  color: #11683c;
}
.request-facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 0 0 22px;
}
.request-facts dt {
  color: var(--muted);
  font-weight: 650;
}
.request-facts dd {
  margin: 0;
}
.request-action {
  border-top: 1px solid var(--border);
  margin-top: 18px;
  padding-top: 14px;
}
.request-action summary,
.booking-actions summary {
  color: var(--blue2);
  cursor: pointer;
  font-weight: 700;
}
.request-action form {
  margin-top: 14px;
}
.request-decisions {
  border-top: 1px solid var(--border);
  margin-top: 20px;
  padding-top: 2px;
}
.request-decisions > form {
  margin-top: 12px;
}
.request-decisions > form button,
.request-decisions .success-action {
  width: 100%;
}
button.success-action {
  background: var(--success);
}
button.success-action:hover {
  background: #105f38;
}
.message-thread {
  display: grid;
  gap: 10px;
}
.message {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 13px;
  background: #f8fafc;
}
.message.status {
  display: block;
  border-radius: 8px;
  background: #eef4ff;
  color: var(--text);
  font-size: inherit;
  font-weight: inherit;
}
.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 5px;
}
.reply-form,
.closed-note {
  border-top: 1px solid var(--border);
  margin-top: 18px;
  padding-top: 18px;
}
.request-dialog {
  width: min(560px, calc(100% - 28px));
  border: 0;
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 20px 60px rgba(16, 24, 40, 0.3);
}
.request-dialog::backdrop {
  background: rgba(15, 23, 42, 0.55);
}
.dialog-head,
.dialog-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.dialog-head h2 {
  margin: 0;
}
.dialog-actions {
  justify-content: flex-end;
}
.icon-button {
  background: transparent;
  color: var(--text);
  font-size: 1.7rem;
  padding: 0 7px;
}
.icon-button:hover {
  background: #eef2f6;
}
@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 15px 20px;
  }
  .topbar nav {
    gap: 12px;
  }
  .container {
    margin-top: 22px;
  }
  .grid.two {
    grid-template-columns: 1fr;
  }
  .page-head {
    flex-direction: column;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 17px;
  }
  .busy-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .request-release {
    width: 100%;
  }
  .request-dialog {
    padding: 17px;
  }
  .dialog-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}