:root {
  color-scheme: dark;
  --bg-color: #050505;
  --bg-gradient: radial-gradient(circle at top, rgba(255, 255, 255, 0.08), transparent 60%),
    linear-gradient(135deg, #050505, #0b0b0b);
  --card-bg: rgba(20, 20, 20, 0.7);
  --card-border: rgba(255, 255, 255, 0.06);
  --text-color: #f5f5f5;
  --muted-color: rgba(245, 245, 245, 0.64);
  --primary-color: rgba(255, 255, 255, 0.9);
  --primary-color-strong: rgba(255, 255, 255, 1);
  --primary-color-soft: rgba(255, 255, 255, 0.12);
  --danger-color: rgba(255, 82, 82, 0.85);
  --info-color: rgba(255, 255, 255, 0.75);
  font-family: 'Segoe UI', 'Roboto', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-gradient);
  color: var(--text-color);
  display: flex;
  justify-content: center;
}

.container {
  width: min(1200px, 100%);
  margin: 4vh 1rem 6vh;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 22px;
  padding: clamp(1.8rem, 3vw, 2.8rem);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
}

.card h1,
.card h2,
.card h3 {
  margin-top: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card h2,
.card h3 {
  letter-spacing: 0.06em;
}

.lead {
  margin: 0.6rem auto 0;
  color: var(--muted-color);
  text-align: center;
  max-width: 28rem;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.brand-logo {
  width: 88px;
  height: auto;
  filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.35));
}

.brand h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  text-align: center;
}

.form {
  display: grid;
  gap: 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-weight: 600;
  letter-spacing: 0.04em;
}

input[type='email'],
input[type='password'],
textarea {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  padding: 0.9rem 1.1rem;
  font-size: 1rem;
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.04);
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea {
  min-height: 160px;
  resize: vertical;
  font-family: inherit;
  line-height: 1.4;
}

input[type='email']::placeholder,
input[type='password']::placeholder,
textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

input[type='email']:focus,
input[type='password']:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  border: none;
  color: #050505;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(255, 255, 255, 0.14);
}

.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-color);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, border 0.18s ease, transform 0.18s ease;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

.secondary-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.secondary-button.danger-button {
  border-color: rgba(255, 82, 82, 0.55);
  color: var(--danger-color);
}

.secondary-button.danger-button:hover,
.secondary-button.danger-button:focus-visible {
  background: rgba(255, 82, 82, 0.18);
  border-color: rgba(255, 82, 82, 0.7);
  color: var(--danger-color);
}

.secondary-button[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 16px;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}

.alert-error {
  background: rgba(255, 82, 82, 0.12);
  color: var(--danger-color);
  border: 1px solid rgba(255, 82, 82, 0.4);
}

.alert-info {
  background: rgba(255, 255, 255, 0.08);
  color: var(--info-color);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.result-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.meta-timestamp {
  font-size: 0.85rem;
  color: var(--muted-color);
  letter-spacing: 0.06em;
}

.result .meta {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.field-help {
  margin-top: 0.5rem;
  color: var(--muted-color);
  font-size: 0.9rem;
  line-height: 1.4;
}

.form-note {
  text-align: center;
  margin-top: 0.75rem;
}

.muted-link {
  color: var(--muted-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.muted-link:hover {
  color: var(--primary-color);
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.admin-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.admin-meta {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted-color);
}

.inline-form {
  display: inline;
}

.inline-form .secondary-button {
  border-width: 1px;
}

.status-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.status-toggle {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.2rem;
  display: inline-flex;
  gap: 0.2rem;
  margin: 0;
  min-inline-size: 0;
}

.status-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.status-toggle label {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--muted-color);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
  user-select: none;
}

.status-toggle label:hover {
  color: var(--text-color);
}

.status-toggle input:checked + label {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  color: #050505;
  box-shadow: 0 10px 18px rgba(255, 255, 255, 0.18);
}

.status-toggle input:focus-visible + label {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.status-form .secondary-button {
  padding: 0.45rem 1.05rem;
}

@media (max-width: 1200px) {
  .status-form {
    align-items: stretch;
    flex-direction: column;
    gap: 0.6rem;
  }

  .status-toggle {
    width: 100%;
    padding: 0.3rem;
    gap: 0.3rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  .status-toggle label {
    flex: 1 1 100%;
    text-align: center;
    padding: 0.35rem 0.75rem;
  }

  .status-form .secondary-button {
    width: 100%;
    justify-content: center;
  }

  .accounts-table th,
  .accounts-table td {
    padding: 0.65rem 0.6rem;
  }
}

.accounts-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.accounts-search-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.accounts-search-input {
  flex: 1 1 220px;
  min-width: 200px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  padding: 0.65rem 0.95rem;
  font-size: 0.95rem;
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.04);
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.accounts-search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.accounts-search-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.accounts-search-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.accounts-search-actions .secondary-button {
  white-space: nowrap;
}

.accounts-summary {
  margin-left: auto;
  font-size: 0.9rem;
  color: var(--muted-color);
  display: flex;
  align-items: center;
}

.muted-label {
  color: var(--muted-color);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}

.accounts-bulk-form {
  margin: 0 0 1rem;
}

.accounts-bulk-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.accounts-bulk-selected {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.accounts-selected-count {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-color);
}

.accounts-bulk-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 1rem;
}

.table-note {
  margin: 0 0 1rem;
  color: var(--muted-color);
  font-size: 0.9rem;
  line-height: 1.5;
}

.accounts-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 320px;
}

.accounts-select-column {
  width: 52px;
  text-align: center;
}

.accounts-table th,
.accounts-table td {
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  text-align: left;
  font-size: 0.95rem;
}

.accounts-table th.accounts-select-column,
.accounts-table td.accounts-select-column {
  text-align: center;
}

.accounts-table thead th {
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--muted-color);
  text-transform: uppercase;
  font-size: 0.85rem;
}

.accounts-table tbody tr:last-child td {
  border-bottom: none;
}

.account-select-all,
.account-select-checkbox {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 4px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.account-select-all {
  display: inline-flex;
  margin: 0 auto;
}

.account-select-checkbox {
  display: inline-flex;
  margin: 0 auto;
}

.accounts-table tbody tr {
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.accounts-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
}

.account-row-selected {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.accounts-pagination {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.pagination-page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-color);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background 0.18s ease, border 0.18s ease, transform 0.18s ease;
}

.pagination-page:hover,
.pagination-page:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
  outline: none;
}

.pagination-page.is-active {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  border-color: transparent;
  color: #050505;
  cursor: default;
  box-shadow: 0 14px 24px rgba(255, 255, 255, 0.2);
}

.pagination-page.is-active:hover {
  transform: none;
}
.accounts-table code {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.25rem 0.5rem;
  border-radius: 10px;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--info-color);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-badge.status-new {
  background: rgba(76, 175, 80, 0.18);
  color: rgba(129, 199, 132, 0.95);
}

.status-badge.status-unused {
  background: rgba(76, 175, 80, 0.18);
  color: rgba(129, 199, 132, 0.95);
}

.status-badge.status-used {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.75);
}

.result dt {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted-color);
}

.result dd {
  margin: 0.2rem 0 0;
  word-break: break-word;
}

.message-html {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 1.35rem;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow-x: auto;
  color: inherit;
}

.message-html a {
  color: var(--primary-color);
}

.message-html img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

.message-html table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.message-html th,
.message-html td {
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.55rem 0.75rem;
  text-align: left;
}

.message-body {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.95rem;
}

.message-plain-toggle {
  margin-top: 1.2rem;
}

.message-plain-toggle summary {
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.message-plain-toggle[open] summary {
  margin-bottom: 0.6rem;
}

@media (max-width: 640px) {
  .container {
    margin: 2.5rem 1rem 3rem;
  }

  .card {
    padding: 1.6rem;
  }

  .primary-button {
    width: 100%;
  }

  .admin-toolbar {
    align-items: stretch;
  }

  .admin-toolbar-actions {
    width: 100%;
    justify-content: center;
  }

  .admin-toolbar-actions .secondary-button,
  .inline-form .secondary-button {
    width: 100%;
  }

  .result .meta {
    grid-template-columns: 1fr;
  }
}