:root {
  --bg: #0b0b0c;
  --surface: #151518;
  --surface-2: #1b1b21;
  --text: #e6e6ea;
  --muted: #a3a3ad;
  --primary: #4f8cff;
  --danger: #ff5d5d;
  --ring: #7aa2ff;
  --radius: 14px;
  --space: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-2: #f1f3f9;
    --text: #1d1d21;
    --muted: #5d5d66;
    --primary: #2f6bff;
    --danger: #d93737;
    --ring: #6a8dff;
    color-scheme: light;
  }
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(79, 140, 255, 0.08), transparent 60%), var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, "Noto Sans", "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
  display: flex;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: color-mix(in srgb, var(--primary) 85%, white 15%);
}

img {
  max-width: 100%;
  display: block;
}

.app-shell {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.top-bar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.top-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(var(--space) * 1.5);
  padding: calc(var(--space) * 1.8) calc(var(--space) * 2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(79, 140, 255, 0.35), rgba(79, 140, 255, 0.1));
}

.brand-icon svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 1.5);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  color: var(--muted);
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link[aria-current="page"],
.nav-link:hover {
  background: rgba(79, 140, 255, 0.08);
  color: var(--text);
}

.auth-actions {
  display: flex;
  align-items: center;
  gap: var(--space);
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.9rem;
}

.user-chip svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.app-main {
  flex: 1;
  width: 100%;
  padding: calc(var(--space) * 2) clamp(var(--space), 5vw, calc(var(--space) * 6));
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: calc(var(--space) * 2);
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: calc(var(--space) * 2);
}

.page-title {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
}

.page-description {
  margin: 6px 0 0;
  color: var(--muted);
  max-width: 640px;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: var(--space);
}

.page-actions form {
  margin: 0;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: calc(var(--space) * 2);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.card-compact {
  padding: calc(var(--space) * 1.5);
}

.card-stack {
  display: grid;
  gap: calc(var(--space) * 1.5);
}

.info-grid {
  display: grid;
  gap: calc(var(--space) * 1.2);
}

.info-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space);
}

.info-label {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.info-value {
  font-size: 1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: calc(var(--space) / 1.5);
}

.hero-card {
  text-align: center;
  padding: calc(var(--space) * 4) calc(var(--space) * 3);
  display: grid;
  gap: calc(var(--space) * 1.5);
  align-items: center;
  justify-items: center;
}

.centered-card {
  display: grid;
  gap: calc(var(--space) * 1.5);
  justify-items: center;
  text-align: center;
}

.hero-card h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0;
}

.hero-meta {
  color: var(--muted);
  max-width: 540px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  min-height: 44px;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.is-disabled,
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 70%, white 30%));
  color: #fff;
  border-color: transparent;
}

.btn-primary:hover {
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 90%, white 10%), var(--primary));
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
}

.btn-danger {
  background: rgba(255, 93, 93, 0.12);
  color: #ffb3b3;
  border-color: rgba(255, 93, 93, 0.2);
}

.btn-danger:hover {
  background: rgba(255, 93, 93, 0.2);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

.icon-button {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  color: var(--muted);
  cursor: pointer;
}

.icon-button:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.08);
}

.icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  color: currentColor;
}

.form-card {
  max-width: 520px;
  margin: 0 auto;
  display: grid;
  gap: calc(var(--space) * 2);
}

.form-grid {
  display: grid;
  gap: calc(var(--space) * 1.5);
}

.form-footer {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

input:not([type="checkbox"]):not([type="radio"]),
textarea,
select {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border-radius: calc(var(--radius) - 6px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--surface-2);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  padding: 12px 14px;
  min-height: 120px;
  resize: vertical;
}

input[type="checkbox"],
input[type="radio"] {
  width: auto;
  min-height: auto;
  margin: 0;
}

input:focus,
textarea:focus,
select:focus,
button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

input::placeholder,
textarea::placeholder {
  color: color-mix(in srgb, var(--muted) 70%, transparent);
}

.field-hint {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 6px;
}

.field-error,
.errorlist {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  color: var(--danger);
  font-size: 0.85rem;
}

.errorlist li + li {
  margin-top: 4px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-badge.enabled {
  background: rgba(79, 214, 128, 0.15);
  color: #8ff6c5;
}

.status-badge.disabled {
  background: rgba(255, 93, 93, 0.15);
  color: #ffb3b3;
}

.table-card {
  display: grid;
  gap: calc(var(--space) * 1.5);
}

.table-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: calc(var(--space) * 1.5);
}

.search-field {
  flex: 1;
  min-width: min(260px, 100%);
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: calc(var(--radius) - 6px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--surface-2);
  padding: 0 14px;
}

.search-field input {
  border: none;
  background: transparent;
  padding: 0;
  min-height: 44px;
}

.search-field input:focus {
  outline: none;
  box-shadow: none;
}

.vault-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.vault-table thead th {
  text-align: left;
  font-weight: 600;
  padding: 14px 18px;
  color: var(--muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.vault-table tbody tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.vault-table td {
  padding: 16px 18px;
  vertical-align: top;
  color: var(--text);
}

.cell-muted {
  color: var(--muted);
}

.action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.password-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.password-field[data-visible="false"] .password-text {
  filter: blur(10px);
  user-select: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 10, 0.65);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
  z-index: 40;
}

.modal-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(24px, 5vw, 60px);
  z-index: 50;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.modal.is-open {
  visibility: visible;
  opacity: 1;
}

.modal-panel {
  width: min(520px, 100%);
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  padding: calc(var(--space) * 2);
  display: grid;
  gap: calc(var(--space) * 2);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.3rem;
}

.modal-close {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 50%;
  width: 38px;
  height: 38px;
}

.modal-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space);
}

.toast-stack {
  position: fixed;
  bottom: clamp(16px, 4vw, 32px);
  right: clamp(16px, 4vw, 32px);
  display: grid;
  gap: var(--space);
  z-index: 60;
}

.toast {
  background: var(--surface);
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 18px;
  box-shadow: var(--shadow);
  min-width: 240px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast[data-variant="error"] {
  border-color: rgba(255, 93, 93, 0.35);
}

.toast[data-variant="success"] {
  border-color: rgba(79, 214, 128, 0.35);
}

.toast-message {
  margin: 0;
}

.toast-dismiss {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  margin-left: auto;
}

.toast.is-hiding {
  opacity: 0;
  transform: translateY(10px);
}

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

.split-columns {
  display: grid;
  gap: calc(var(--space) * 2);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.list-muted {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.code-block {
  font-family: "Fira Code", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.85rem;
  background: var(--surface-2);
  border-radius: calc(var(--radius) - 6px);
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  word-break: break-all;
  display: block;
}

.recovery-grid {
  display: grid;
  gap: var(--space);
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.recovery-code {
  padding: 10px 12px;
  border-radius: calc(var(--radius) - 6px);
  background: var(--surface-2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: "Fira Code", monospace;
  text-align: center;
}

.alert-inline {
  border-radius: calc(var(--radius) - 6px);
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(79, 140, 255, 0.12);
  color: var(--text);
}

.empty-state {
  text-align: center;
  padding: calc(var(--space) * 4) calc(var(--space) * 3);
  display: grid;
  gap: var(--space);
  color: var(--muted);
}

@media (max-width: 900px) {
  .top-bar-inner {
    padding: calc(var(--space) * 1.5);
  }

  .top-nav {
    gap: var(--space);
  }

  .app-main {
    padding: calc(var(--space) * 1.5);
  }

  .vault-table thead {
    display: none;
  }

  .vault-table tbody {
    display: grid;
    gap: var(--space);
  }

  .vault-table tbody tr {
    display: grid;
    gap: var(--space);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: calc(var(--space) * 1.5);
    background: var(--surface-2);
  }

  .vault-table tbody tr td {
    padding: 0;
    border: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .vault-table tbody tr td::before {
    content: attr(data-label);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .vault-table tbody tr td:last-child {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .modal {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .top-bar-inner {
    flex-wrap: wrap;
    justify-content: center;
  }

  .auth-actions {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .user-chip {
    order: -1;
  }

  .page-header {
    align-items: flex-start;
  }

  .page-actions {
    width: 100%;
    justify-content: stretch;
  }

  .page-actions .btn {
    flex: 1;
  }
}