:root {
  color-scheme: dark;
  --bg: #020807;
  --panel: rgba(3, 18, 18, 0.92);
  --panel-2: rgba(5, 27, 27, 0.92);
  --line: rgba(0, 229, 255, 0.42);
  --line-soft: rgba(0, 229, 255, 0.16);
  --green: #39ffb6;
  --cyan: #00e5ff;
  --amber: #ffcf5a;
  --red: #ff4d6d;
  --text: #d8fff9;
  --muted: #72a9a8;
  --shadow: 0 0 22px rgba(0, 229, 255, 0.12), inset 0 0 24px rgba(57, 255, 182, 0.035);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(rgba(0, 229, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% -10%, rgba(0, 229, 255, 0.18), transparent 30%),
    #020807;
  background-size: 24px 24px, 24px 24px, auto, auto;
  color: var(--text);
  font-family: "Consolas", "Cascadia Mono", "Microsoft YaHei", monospace;
  letter-spacing: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.035) 1px, transparent 1px, transparent 4px);
  mix-blend-mode: overlay;
  opacity: 0.25;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
input,
select,
textarea,
.panel,
.block,
.auth-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}

button {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 0;
  text-transform: uppercase;
  cursor: pointer;
}

button:hover {
  color: #00110f;
  background: var(--cyan);
  border-color: var(--cyan);
}

button.primary {
  background: rgba(57, 255, 182, 0.16);
  border-color: var(--green);
  color: var(--green);
  font-weight: 700;
}

button.primary:hover {
  background: var(--green);
  color: #00110a;
}

button.danger {
  border-color: rgba(255, 77, 109, 0.7);
  color: var(--red);
}

button.icon {
  width: 36px;
  padding: 0;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 0;
  padding: 9px 10px;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 2px rgba(57, 255, 182, 0.18), var(--shadow);
}

.password-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  width: 100%;
}

.password-control input {
  min-width: 0;
  border-right: 0;
}

.password-eye {
  width: 42px;
  min-height: 36px;
  display: grid;
  place-items: center;
  padding: 0;
  border-color: var(--line);
  color: var(--cyan);
}

.password-eye svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.password-eye[aria-pressed="true"] {
  color: var(--green);
  border-color: var(--green);
  background: rgba(57, 255, 182, 0.12);
}

.password-score {
  display: grid;
  gap: 5px;
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  text-transform: none;
}

.score-line {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.score-bar {
  height: 5px;
  border: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.score-bar i {
  display: block;
  height: 100%;
  background: var(--red);
}

.password-score.medium .score-bar i {
  background: var(--amber);
}

.password-score.strong .score-bar i {
  background: var(--green);
}

.password-score.weak .score-line strong {
  color: var(--red);
}

.password-score.medium .score-line strong {
  color: var(--amber);
}

.password-score.strong .score-line strong {
  color: var(--green);
}

.score-issues {
  line-height: 1.45;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-panel {
  width: min(520px, 100%);
  padding: 24px;
}

.auth-brand {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 18px;
}

.auth-brand img,
.brand img {
  filter: drop-shadow(0 0 16px rgba(0, 229, 255, 0.35));
}

.auth-brand img {
  width: 64px;
  height: 64px;
}

.auth-panel h1 {
  margin: 0 0 6px;
  font-size: 24px;
  color: var(--cyan);
}

.auth-panel p {
  color: var(--muted);
  margin: 0;
}

.form-stack {
  display: grid;
  gap: 14px;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.row.wrap {
  flex-wrap: wrap;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 58px minmax(0, 1fr);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(1, 10, 10, 0.94);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.12);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
  white-space: nowrap;
}

.brand img {
  width: 34px;
  height: 34px;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: 170px minmax(280px, 390px) minmax(0, 1fr);
}

.workspace.nav-collapsed {
  grid-template-columns: 52px minmax(280px, 390px) minmax(0, 1fr);
}

.workspace.docs-collapsed {
  grid-template-columns: 170px 56px minmax(0, 1fr);
}

.workspace.nav-collapsed.docs-collapsed {
  grid-template-columns: 52px 56px minmax(0, 1fr);
}

.sidebar,
.doc-list,
.editor {
  min-height: 0;
  overflow: auto;
}

.sidebar {
  padding: 12px;
  border-right: 1px solid var(--line);
  background: rgba(2, 12, 12, 0.82);
}

.rail-toggle {
  width: 100%;
  min-height: 34px;
  padding: 0;
  border-color: var(--cyan);
  color: var(--cyan);
}

.nav-items {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.nav-button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}

.nav-mark {
  width: 20px;
  flex: 0 0 20px;
  color: var(--cyan);
  text-align: center;
}

.workspace.nav-collapsed .sidebar {
  padding: 8px;
}

.workspace.nav-collapsed .nav-button {
  justify-content: center;
  padding: 0;
}

.workspace.nav-collapsed .nav-label {
  display: none;
}

.workspace.nav-collapsed .nav-mark {
  width: auto;
  flex-basis: auto;
}

.doc-list {
  border-right: 1px solid var(--line);
  background: rgba(1, 9, 9, 0.86);
}

.list-header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: grid;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(1, 10, 10, 0.96);
}

.list-header.collapsed {
  height: 100%;
  align-content: start;
  grid-template-columns: 1fr;
}

.list-tools {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 8px;
}

.rail-count {
  min-height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
}

.pager {
  display: grid;
  grid-template-columns: auto minmax(64px, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.attachment-pager {
  display: grid;
  grid-template-columns: auto minmax(120px, 1fr) auto;
  gap: 8px;
  align-items: center;
  margin: 12px 0;
}

.pager span,
.attachment-pager span {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
}

.pager button:disabled,
.attachment-pager button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.doc-item {
  display: grid;
  gap: 5px;
  width: 100%;
  border-width: 0 0 1px;
  border-color: var(--line-soft);
  box-shadow: none;
  text-align: left;
  padding: 13px 12px;
  background: transparent;
}

.doc-item.active {
  border-left: 3px solid var(--green);
  background: linear-gradient(90deg, rgba(57, 255, 182, 0.18), transparent);
}

.doc-title {
  font-weight: 700;
  color: var(--text);
  overflow-wrap: anywhere;
}

.muted {
  color: var(--muted);
  font-size: 12px;
}

.editor {
  padding: 16px;
}

.editor-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.panel,
.block {
  padding: 15px;
}

.panel h2,
.panel h3 {
  margin: 0;
  color: var(--cyan);
}

.block {
  display: grid;
  gap: 10px;
}

.block-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  color: var(--green);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.status {
  min-height: 22px;
  color: var(--amber);
  font-size: 12px;
}

.file-picker {
  width: auto;
  min-height: 36px;
  display: inline-grid;
  place-items: center;
  padding: 0 12px;
  border: 1px solid var(--green);
  background: rgba(57, 255, 182, 0.12);
  color: var(--green);
  cursor: pointer;
}

.file-picker input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-name {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  min-width: 180px;
  padding: 0 10px;
  border: 1px solid var(--line-soft);
  color: var(--muted);
  overflow-wrap: anywhere;
}

.preview {
  border: 1px solid var(--line-soft);
  padding: 12px;
  background: rgba(0, 0, 0, 0.28);
  overflow: auto;
}

.markdown-view-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line-soft);
  background: rgba(0, 229, 255, 0.045);
}

.markdown-view-head span {
  color: var(--cyan);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.markdown-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, 0.22);
}

.md-tool {
  min-width: 36px;
  min-height: 32px;
  padding: 0 9px;
  color: var(--cyan);
  font-weight: 700;
}

.markdown-preview {
  line-height: 1.62;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4,
.markdown-preview h5,
.markdown-preview h6,
.markdown-preview p,
.markdown-preview blockquote,
.markdown-preview pre,
.markdown-preview ul,
.markdown-preview ol {
  margin: 0 0 10px;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3 {
  color: var(--green);
}

.markdown-preview a {
  color: var(--cyan);
}

.markdown-preview blockquote {
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  color: var(--muted);
}

.markdown-preview code {
  padding: 1px 5px;
  border: 1px solid var(--line-soft);
  background: rgba(0, 229, 255, 0.08);
  color: var(--amber);
}

.markdown-preview pre {
  padding: 10px;
  border: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, 0.34);
  overflow: auto;
}

.markdown-preview pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.markdown-preview table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 10px;
}

.markdown-preview th,
.markdown-preview td {
  padding: 7px 8px;
  border: 1px solid var(--line-soft);
  text-align: left;
}

.markdown-preview th {
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
}

.markdown-preview hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 12px 0;
}

.preview img {
  max-width: 100%;
  height: auto;
  display: block;
}

.busy-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(0, 6, 6, 0.78);
  backdrop-filter: blur(8px);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 6, 6, 0.82);
  backdrop-filter: blur(10px);
}

.modal-window {
  width: min(520px, 100%);
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--cyan);
  background:
    linear-gradient(135deg, rgba(0, 229, 255, 0.08), transparent 38%),
    var(--panel);
  box-shadow: 0 0 42px rgba(0, 229, 255, 0.28), inset 0 0 28px rgba(57, 255, 182, 0.04);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--cyan);
}

.modal-head strong {
  overflow-wrap: anywhere;
}

.modal-message {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 4px;
}

.busy-box {
  width: min(380px, calc(100vw - 32px));
  display: grid;
  gap: 10px;
  justify-items: center;
  padding: 22px;
  border: 1px solid var(--cyan);
  background: var(--panel);
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.26);
}

.busy-box span {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.scanner {
  width: 200px;
  height: 4px;
  overflow: hidden;
  background: rgba(0, 229, 255, 0.12);
}

.scanner::before {
  content: "";
  display: block;
  width: 48%;
  height: 100%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
  animation: scan 1s infinite ease-in-out;
}

.hidden {
  display: none !important;
}

@keyframes scan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(230%); }
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-rows: auto minmax(0, 1fr);
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
    padding: 10px;
  }

  .topbar .row {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(180px, 34vh) minmax(0, 1fr);
  }

  .workspace.nav-collapsed,
  .workspace.docs-collapsed,
  .workspace.nav-collapsed.docs-collapsed {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(180px, 34vh) minmax(0, 1fr);
  }

  .sidebar {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 8px;
  }

  .nav-button {
    min-width: max-content;
    margin-bottom: 0;
  }

  .nav-items {
    display: flex;
    gap: 8px;
    margin-top: 0;
  }

  .workspace.nav-collapsed .nav-label {
    display: inline;
  }

  .workspace.nav-collapsed .nav-button {
    padding: 0 12px;
  }

  #toggleNav {
    min-width: 42px;
  }

  .doc-list {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .list-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .pager {
    grid-column: 1 / -1;
  }

  .list-tools {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .editor {
    padding: 10px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .auth-shell {
    padding: 12px;
  }

  .auth-panel {
    padding: 16px;
  }

  .auth-brand {
    align-items: flex-start;
  }

  .auth-brand img {
    width: 46px;
    height: 46px;
  }

  .brand {
    font-size: 14px;
  }

  .topbar .row {
    grid-template-columns: 1fr;
  }

  .workspace {
    grid-template-rows: auto minmax(160px, 32vh) minmax(0, 1fr);
  }

  .list-header {
    grid-template-columns: 1fr;
  }

  .row.wrap {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  button {
    width: 100%;
  }

  .markdown-toolbar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .markdown-toolbar button {
    width: auto;
    min-width: 0;
    padding: 0 6px;
  }

  .markdown-view-head button {
    width: auto;
  }

  .password-eye {
    width: 42px;
  }

  .file-picker,
  .file-name {
    width: 100%;
  }

  .modal-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}