:root {
  --bg: #000000;
  --window: #202328;
  --window-soft: #2a2e35;
  --window-strong: #17191e;
  --tree-bg: #ccd4d8;
  --tree-text: #3a4048;
  --tree-text-soft: #59606b;
  --doc-bg: #f6f7f8;
  --doc-panel: #ffffff;
  --doc-text: #1e2228;
  --doc-soft: #747b86;
  --border-dark: #3d414a;
  --border-light: #d1d5da;
  --accent: #4b89ec;
  --success: #47b17d;
  --warn: #c78a3e;
  --danger: #cf5c5c;
  --shadow: 0 26px 48px rgba(0, 0, 0, 0.45);
  --font-ui: "Aptos", "Segoe UI", "Noto Sans", sans-serif;
  --font-doc: "Source Serif 4", "Georgia", serif;
}

body[data-theme="light"] {
  --bg: #eef1f6;
  --window: #ffffff;
  --window-soft: #f4f7fb;
  --window-strong: #edf1f7;
  --tree-bg: #d8dfe5;
  --tree-text: #2d3642;
  --tree-text-soft: #5a697b;
  --doc-bg: #f7f9fc;
  --doc-panel: #ffffff;
  --doc-text: #1d2735;
  --doc-soft: #66758a;
  --border-dark: #ccd5e2;
  --border-light: #dbe3ee;
  --shadow: 0 22px 44px rgba(12, 22, 38, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--doc-text);
  font-family: var(--font-ui);
}

button,
input,
textarea,
select {
  font-family: var(--font-ui);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.app-shell {
  min-height: 100vh;
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background: radial-gradient(800px 350px at 25% -10%, rgba(75, 137, 236, 0.2), transparent), var(--bg);
}

.auth-card {
  width: min(1000px, 100%);
  border: 1px solid var(--border-dark);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  background: var(--window);
}

.auth-brand {
  padding: 32px;
  background: linear-gradient(150deg, #275fb8 0%, #3781e4 47%, #58bca4 100%);
  color: #f1f6ff;
}

.auth-brand h1 {
  margin: 0;
  font-size: 42px;
}

.auth-brand p {
  margin-top: 16px;
  font-size: 23px;
  line-height: 1.35;
  max-width: 34ch;
}

.auth-brand .pill {
  display: inline-block;
  margin-top: 18px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
}

.auth-form {
  padding: 28px;
}

.auth-form h2 {
  margin: 0;
  font-size: 34px;
}

.auth-form p {
  color: var(--doc-soft);
}

.form-grid {
  display: grid;
  gap: 10px;
}

.input,
.select,
.textarea {
  width: 100%;
  border: 1px solid var(--border-light);
  border-radius: 7px;
  padding: 9px 10px;
  background: var(--window-soft);
  color: var(--doc-text);
}

.textarea {
  min-height: 100px;
  resize: vertical;
}

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(75, 137, 236, 0.2);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--doc-soft);
  font-size: 13px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 12px;
}

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

.btn-primary {
  background: linear-gradient(140deg, var(--accent), #679df1);
  color: #fff;
}

.btn-subtle {
  border-color: var(--border-light);
  background: var(--window-soft);
  color: var(--doc-text);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.topbar {
  height: 52px;
  border-bottom: 1px solid var(--border-light);
  background: var(--window);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
}

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

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(150deg, #f49735 0%, #7ecf4f 56%, #ed4e4e 100%);
}

.brand-name {
  font-size: 14px;
  font-weight: 600;
}

.topbar-meta {
  color: var(--doc-soft);
  font-size: 11px;
}

.topbar-actions {
  display: flex;
  gap: 6px;
}

.workspace-frame {
  min-height: 100vh;
  background: #000;
  padding: 22px;
}

.workspace-layout {
  height: calc(100vh - 44px);
  border-radius: 9px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid #444;
  display: grid;
  grid-template-columns: 50px 300px minmax(0, 1fr);
}

.main-nav {
  background: #050607;
  border-right: 1px solid #0f1114;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 6px 4px;
  gap: 6px;
}

.main-nav-top,
.main-nav-bottom {
  display: grid;
  gap: 4px;
}

.main-nav-scroll {
  overflow: auto;
  display: grid;
  align-content: start;
  gap: 2px;
}

.nav-title {
  display: none;
}

.nav-brand,
.nav-mini {
  width: 100%;
  height: 30px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: #cad1de;
  font-size: 11px;
  cursor: pointer;
}

.nav-brand:hover,
.nav-mini:hover {
  background: rgba(255, 255, 255, 0.08);
}

.nav-brand {
  background: linear-gradient(150deg, #f49634 0%, #6ecb49 55%, #e94f4f 100%);
  color: #0a0a0a;
  font-weight: 700;
}

.nav-btn {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: #b0b7c5;
  padding: 5px 0;
  display: grid;
  justify-items: center;
  gap: 2px;
  cursor: pointer;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
  background: rgba(75, 137, 236, 0.35);
  color: #edf3ff;
}

.nav-icon {
  width: 24px;
  height: 18px;
  border-radius: 4px;
  font-size: 10px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.08);
}

.nav-label {
  font-size: 9px;
  line-height: 1;
}

.context-pane {
  background: var(--tree-bg);
  color: var(--tree-text);
  border-right: 1px solid #b8c0c6;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.context-head {
  padding: 8px;
  border-bottom: 1px solid #b5bec5;
}

.tree-search-wrap {
  margin-bottom: 8px;
}

.tree-root-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.context-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.context-title {
  margin: 0;
  font-size: 13px;
}

.tree-search {
  background: rgba(255, 255, 255, 0.62);
  border-color: #bcc5cd;
  color: var(--tree-text);
}

.doc-tree-scroll {
  flex: 1;
  overflow: auto;
  padding: 8px;
}

.doc-tree {
  display: grid;
  gap: 2px;
}

.doc-node {
  display: flex;
  align-items: center;
  gap: 4px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 3px 6px;
}

.doc-node:hover {
  background: rgba(255, 255, 255, 0.44);
}

.doc-node.active {
  background: rgba(255, 255, 255, 0.8);
  border-color: #bbc5cd;
}

.doc-toggle {
  width: 16px;
  height: 16px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--tree-text-soft);
  font-size: 10px;
  cursor: pointer;
}

.doc-toggle:hover {
  border-color: #b2bcc4;
}

.doc-bullet {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: #677282;
}

.doc-node-label {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--tree-text);
  text-align: left;
  cursor: pointer;
  font-size: 13px;
  padding: 0;
}

.content-pane {
  background: var(--doc-bg);
  color: var(--doc-text);
  min-width: 0;
  overflow: auto;
  padding: 0;
}

.doc-main-shell {
  min-height: 100%;
  display: grid;
  grid-template-rows: 40px 40px 1fr 28px;
}

.doc-tabbar {
  background: #ced3d8;
  border-bottom: 1px solid #bcc2c8;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
}

.doc-tab-nav {
  display: flex;
  gap: 4px;
}

.doc-mini-btn {
  height: 24px;
  min-width: 24px;
  border: 1px solid transparent;
  background: transparent;
  color: #2d3440;
  border-radius: 6px;
  cursor: pointer;
}

.doc-mini-btn:hover {
  border-color: #afb7bf;
  background: rgba(255, 255, 255, 0.55);
}

.doc-tab {
  height: 30px;
  border: 1px solid #b7bdc4;
  border-radius: 8px;
  background: #d9dee3;
  color: #1e2430;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.doc-tab.active {
  background: #f2f4f6;
}

.doc-tab-x {
  color: #6a717d;
  font-size: 12px;
}

.doc-commandbar {
  background: #f4f5f6;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 8px;
  overflow: auto;
}

.doc-command-select {
  height: 28px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: #fff;
  color: var(--doc-text);
  padding: 0 7px;
  font-size: 12px;
}

.doc-cmd-btn {
  height: 28px;
  min-width: 28px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: #fff;
  color: var(--doc-text);
  font-size: 12px;
  cursor: pointer;
}

.doc-cmd-btn:hover {
  border-color: #b9c3d2;
  background: #f8faff;
}

.doc-page-wrap {
  padding: 14px;
  overflow: auto;
}

.doc-page {
  background: var(--doc-panel);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  min-height: 100%;
  padding: 18px 22px 20px;
  position: relative;
}

.doc-note-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 18px;
}

.doc-note-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #5f646d;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 2px;
}

.doc-note-meta {
  flex: 1;
  min-width: 0;
}

.doc-note-title {
  margin: 0;
  font-size: 43px;
  font-weight: 400;
  line-height: 1.04;
  color: #181d23;
}

.doc-note-sub {
  margin-top: 4px;
  color: var(--doc-soft);
  font-size: 11px;
}

.doc-note-actions {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.doc-watermark {
  position: absolute;
  right: 22px;
  top: 158px;
  width: 240px;
  height: 220px;
  pointer-events: none;
  opacity: 0.9;
}

.petal {
  position: absolute;
  width: 110px;
  height: 70px;
  border-radius: 100% 0 100% 0;
  transform-origin: center center;
}

.petal-one {
  right: 86px;
  top: 22px;
  background: rgba(239, 141, 38, 0.92);
  transform: rotate(16deg);
}

.petal-two {
  right: 8px;
  top: 22px;
  background: rgba(95, 181, 57, 0.9);
  transform: rotate(122deg);
}

.petal-three {
  right: 72px;
  top: 84px;
  background: rgba(225, 74, 74, 0.87);
  transform: rotate(246deg);
}

.doc-page #doc-editor-host .editor-pane {
  border: none;
  background: transparent;
  box-shadow: none;
}

.doc-page #doc-editor-host .editor-canvas {
  min-height: 62vh;
  padding: 0;
  line-height: 1.58;
  font-family: var(--font-doc);
  font-size: 16px;
  color: #1d222a;
}

.doc-page #doc-editor-host .editor-canvas p,
.doc-page #doc-editor-host .editor-canvas li {
  font-size: 16px;
}

.doc-page #doc-editor-host .editor-canvas h1 {
  font-size: 33px;
}

.doc-page #doc-editor-host .editor-canvas h2 {
  font-size: 28px;
}

.doc-page #doc-editor-host .editor-canvas h3 {
  font-size: 22px;
}

.doc-page #doc-editor-host .editor-canvas blockquote {
  font-size: 17px;
  border-left: 3px solid #b8bec7;
  margin-left: 0;
  padding-left: 10px;
  color: #4a525f;
}

.doc-page #doc-editor-host .editor-canvas ul,
.doc-page #doc-editor-host .editor-canvas ol {
  padding-left: 42px;
}

.doc-page #doc-editor-host .editor-canvas a {
  color: #1d7bcf;
}

.doc-statusbar {
  background: #f0f2f4;
  border-top: 1px solid var(--border-light);
  color: #5f6874;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 10px;
  overflow: auto;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.section-title {
  margin: 0;
  font-size: 19px;
}

.card {
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: var(--window);
  padding: 12px;
}

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

.workspace-card {
  border: 1px solid var(--border-light);
  border-radius: 9px;
  background: var(--window);
  padding: 10px;
}

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

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

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

.meta {
  font-size: 12px;
  color: var(--doc-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 11px;
}

.badge-status {
  background: rgba(75, 137, 236, 0.17);
  color: var(--accent);
}

.badge-success {
  background: rgba(71, 177, 125, 0.16);
  color: var(--success);
}

.badge-warning {
  background: rgba(199, 138, 62, 0.18);
  color: var(--warn);
}

.badge-danger {
  background: rgba(207, 92, 92, 0.18);
  color: var(--danger);
}

.toolbar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.table-wrap {
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: auto;
  background: var(--window);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 8px;
  border-bottom: 1px solid var(--border-light);
  font-size: 12px;
  text-align: left;
}

.table th {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--doc-soft);
  background: var(--window-soft);
}

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

.kanban {
  display: grid;
  grid-template-columns: repeat(4, minmax(220px, 1fr));
  gap: 8px;
  overflow: auto;
}

.kanban-col {
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--window);
  min-height: 280px;
  padding: 8px;
}

.kanban-item {
  border: 1px solid var(--border-light);
  border-radius: 7px;
  background: var(--window-soft);
  padding: 7px;
  margin-top: 7px;
}

.empty-state {
  border: 1px dashed var(--border-light);
  border-radius: 9px;
  text-align: center;
  color: var(--doc-soft);
  background: var(--window);
  padding: 26px 12px;
}

.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.56);
  z-index: 140;
  display: grid;
  place-items: center;
}

.dialog {
  width: min(620px, calc(100vw - 24px));
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: var(--window);
  padding: 12px;
}

.dialog-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.toast-root {
  position: fixed;
  right: 10px;
  bottom: 10px;
  z-index: 180;
  display: grid;
  gap: 7px;
}

.toast {
  border: 1px solid var(--border-dark);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--window);
  color: var(--doc-text);
  min-width: 220px;
  padding: 8px 10px;
}

@media (max-width: 1250px) {
  .workspace-layout {
    grid-template-columns: 50px 260px minmax(0, 1fr);
  }

  .doc-note-title {
    font-size: 34px;
  }

  .doc-page #doc-editor-host .editor-canvas,
  .doc-page #doc-editor-host .editor-canvas p,
  .doc-page #doc-editor-host .editor-canvas li {
    font-size: 15px;
  }

  .doc-page #doc-editor-host .editor-canvas h1 {
    font-size: 30px;
  }

  .doc-page #doc-editor-host .editor-canvas h2 {
    font-size: 25px;
  }

  .doc-page #doc-editor-host .editor-canvas h3 {
    font-size: 20px;
  }
}

@media (max-width: 980px) {
  .workspace-layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: calc(100vh - 44px);
  }

  .main-nav,
  .context-pane {
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
  }

  .main-nav {
    grid-template-rows: auto;
    display: flex;
    overflow: auto;
    align-items: center;
  }

  .main-nav-top,
  .main-nav-bottom,
  .main-nav-scroll {
    display: flex;
    gap: 6px;
  }

  .nav-btn {
    min-width: 58px;
  }

  .doc-main-shell {
    grid-template-rows: auto auto 1fr auto;
  }

  .doc-note-head {
    flex-direction: column;
  }

  .doc-note-actions {
    justify-content: flex-start;
  }

  .doc-watermark {
    display: none;
  }

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

  .auth-card {
    grid-template-columns: 1fr;
  }
}