:root {
  --ink: #333539;
  --muted: #777a80;
  --line: #e4e5e8;
  --paper: #ffffff;
  --paper-soft: #fafafa;
  --soft: #f2f3f5;
  --brand: #f47a00;
  --brand-dark: #c96200;
  --brand-soft: #fff2e6;
  --accent: #585b61;
  --danger: #b42318;
  --shadow: 0 18px 50px rgba(38, 40, 44, 0.12);
  --shadow-soft: 0 10px 28px rgba(38, 40, 44, 0.08);
}

:root[data-theme="dark"] {
  --ink: #f3f4f6;
  --muted: #aeb3ba;
  --line: #32353b;
  --paper: #1b1d21;
  --paper-soft: #22252a;
  --soft: #101114;
  --brand: #ff850f;
  --brand-dark: #d86d00;
  --brand-soft: #2d2117;
  --accent: #d8dbe0;
  --danger: #ff8a80;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.26);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(244, 122, 0, 0.09), transparent 34rem),
    linear-gradient(180deg, var(--paper-soft), var(--soft));
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

button,
.button-link {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 10px 16px;
  background: linear-gradient(180deg, #ff8a15, var(--brand));
  color: #fff;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 8px 18px rgba(244, 122, 0, 0.22);
}

button:hover,
.button-link:hover {
  background: linear-gradient(180deg, var(--brand), var(--brand-dark));
}

button.secondary,
.button-link.secondary {
  background: var(--paper-soft);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: none;
}

button.secondary:hover,
.button-link.secondary:hover {
  border-color: rgba(244, 122, 0, 0.42);
  background: var(--brand-soft);
}

button.small {
  min-height: 36px;
  padding: 8px 12px;
  font-size: 13px;
}

button.danger {
  background: color-mix(in srgb, var(--danger) 12%, var(--paper));
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 38%, var(--line));
  box-shadow: none;
}

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

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  background: var(--paper);
  font: inherit;
}

input:focus,
select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(244, 122, 0, 0.15);
  outline: none;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--brand);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title h2 {
  margin-bottom: 0;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}

.auth-body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(244, 122, 0, 0.12), transparent 35%),
    linear-gradient(300deg, rgba(61, 63, 67, 0.10), transparent 40%);
}

.login-shell {
  position: relative;
  width: min(1040px, 100%);
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.82fr);
  overflow: hidden;
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brand-panel {
  position: relative;
  padding: 58px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(45, 47, 52, 0.98), rgba(82, 84, 90, 0.94)),
    linear-gradient(90deg, rgba(244, 122, 0, 0.32), transparent 46%);
}

.brand-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 220px;
  height: 220px;
  border: 32px solid rgba(244, 122, 0, 0.23);
  border-radius: 50%;
}

:root[data-theme="dark"] .brand-panel {
  background:
    linear-gradient(135deg, rgba(25, 26, 30, 0.99), rgba(57, 59, 65, 0.94)),
    linear-gradient(90deg, rgba(244, 122, 0, 0.30), transparent 46%);
}

.brand-panel .eyebrow {
  color: #ffb66b;
}

.brand-panel h1 {
  max-width: 560px;
  margin-bottom: 18px;
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.02;
}

.brand-panel p {
  max-width: 490px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  line-height: 1.55;
}

.hero-strip {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-strip span {
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.84);
  font-size: 13px;
  font-weight: 700;
}

.brand-logo {
  display: block;
  width: 190px;
  max-width: 100%;
  height: auto;
}

.brand-logo-hero {
  width: min(350px, 100%);
  margin-bottom: 38px;
  padding: 13px 16px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
}

.login-card {
  padding: 58px 50px;
  align-self: center;
}

.login-card h2 {
  margin-bottom: 22px;
  font-size: 30px;
}

.stack {
  display: grid;
  gap: 16px;
}

.auth-link {
  margin: -4px 0 0;
  text-align: center;
  font-size: 14px;
  font-weight: 750;
}

.auth-link a {
  color: var(--brand);
  text-decoration: none;
}

.auth-link a:hover {
  text-decoration: underline;
}

.demo-box {
  margin-top: 24px;
  padding: 16px;
  display: grid;
  gap: 6px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  color: var(--muted);
}

.theme-toggle {
  min-width: 78px;
}

.auth-theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2;
}

.topbar {
  min-height: 92px;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  border-bottom: 1px solid var(--line);
  border-top: 4px solid var(--brand);
  box-shadow: 0 8px 24px rgba(38, 40, 44, 0.06);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 22px;
}

.topbar-brand .brand-logo {
  width: 180px;
  padding: 8px 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.topbar h1 {
  margin-bottom: 0;
  font-size: clamp(24px, 2.2vw, 32px);
}

.user-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  color: var(--muted);
}

#currentUser {
  padding: 8px 12px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
}

.client-layout,
.admin-layout {
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 26px 32px 36px;
  display: grid;
  gap: 22px;
}

.client-layout {
  grid-template-columns: 340px minmax(0, 1fr);
  height: calc(100vh - 92px);
  min-height: 680px;
}

.admin-layout {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: stretch;
}

.panel,
.viewer-panel {
  min-width: 0;
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--line) 86%, transparent);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.panel {
  padding: 22px;
}

.action-panel {
  min-height: 344px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-content: start;
}

.action-panel .grid-form {
  align-self: stretch;
}

.action-panel .message {
  min-height: 20px;
}

.wide-panel {
  grid-column: 1 / -1;
}

.document-sidebar {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  overflow: hidden;
}

.viewer-panel {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
}

.viewer-header,
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.viewer-header {
  padding: 20px 22px;
  background: linear-gradient(180deg, var(--paper), var(--paper-soft));
}

.viewer-header h2,
.section-header h2 {
  margin-bottom: 0;
}

#pdfViewer {
  width: 100%;
  height: 100%;
  min-height: 560px;
  border: 0;
  background: #eceef1;
}

:root[data-theme="dark"] #pdfViewer {
  background: #111215;
}

.viewer-placeholder {
  position: absolute;
  inset: 88px 0 0;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--muted);
  background:
    linear-gradient(135deg, rgba(244, 122, 0, 0.08), transparent),
    #eceef1;
  text-align: center;
}

:root[data-theme="dark"] .viewer-placeholder {
  background:
    linear-gradient(135deg, rgba(244, 122, 0, 0.10), transparent),
    #111215;
}

.schema-list,
.schema-grid {
  display: grid;
  gap: 12px;
}

.schema-list {
  align-content: start;
  overflow: auto;
  padding-right: 4px;
}

.project-node {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
  overflow: hidden;
}

.project-node summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  color: var(--ink);
  font-weight: 850;
}

.project-node summary::-webkit-details-marker {
  display: none;
}

.project-node summary::before {
  content: "+";
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 22px;
  border-radius: 8px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 900;
}

.project-node[open] summary::before {
  content: "-";
}

.project-node summary span {
  flex: 1;
}

.project-node summary small {
  color: var(--muted);
  font-weight: 700;
}

.project-files {
  display: grid;
  gap: 8px;
  padding: 0 10px 10px 28px;
  border-top: 1px solid var(--line);
}

.project-files .project-node {
  margin-top: 2px;
  background: color-mix(in srgb, var(--paper-soft) 76%, var(--paper));
}

.schema-item {
  width: 100%;
  display: grid;
  gap: 7px;
  padding: 15px;
  text-align: left;
  color: var(--ink);
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-left: 4px solid transparent;
  box-shadow: none;
}

.schema-item:hover {
  border-color: rgba(244, 122, 0, 0.46);
  border-left-color: var(--brand);
  background: var(--brand-soft);
}

.schema-item strong {
  font-size: 15px;
}

.schema-item span,
.schema-item small,
.muted {
  color: var(--muted);
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.grid-form .wide {
  grid-column: 1 / -1;
}

.file-picker-field {
  position: relative;
}

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

.file-picker-ui {
  min-height: 50px;
  padding: 7px;
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--paper) 96%, var(--brand)), var(--paper));
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.file-picker-button {
  min-height: 36px;
  padding: 9px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 7px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  color: var(--ink);
  font-weight: 850;
  box-shadow: none;
}

.file-picker-name {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-picker-field:hover .file-picker-ui {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--line));
  background: color-mix(in srgb, var(--brand-soft) 42%, var(--paper));
}

.file-picker-input:focus-visible + .file-picker-ui {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(244, 122, 0, 0.15);
}

.file-picker-field.has-file .file-picker-button {
  background: linear-gradient(180deg, #ff8a15, var(--brand));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 18px rgba(244, 122, 0, 0.18);
}

.file-picker-field.has-file .file-picker-name {
  color: var(--ink);
}

.grid-form button[type="submit"] {
  align-self: end;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
}

th,
td {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--brand) 7%, transparent);
}

th {
  background: var(--paper-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.inline-controls {
  display: flex;
  gap: 8px;
  min-width: 270px;
}

.client-cell {
  display: grid;
  gap: 9px;
  min-width: 140px;
}

.client-cell-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.edit-client-button {
  justify-self: start;
  border-color: rgba(244, 122, 0, 0.42);
  color: var(--brand);
  font-weight: 800;
}

.assigned-list {
  min-width: 280px;
  display: grid;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
  color: var(--ink);
  font-size: 13px;
}

.pill button {
  min-height: 0;
  padding: 0 4px;
  background: transparent;
  color: var(--danger);
  box-shadow: none;
  line-height: 1;
}

.admin-project-node {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
}

.admin-project-node summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  font-weight: 800;
}

.admin-project-node summary::-webkit-details-marker {
  display: none;
}

.admin-project-node summary::before {
  content: "+";
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 18px;
  border-radius: 6px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
}

.admin-project-node[open] summary::before {
  content: "-";
}

.admin-project-node summary span {
  flex: 1;
}

.admin-project-node summary small {
  color: var(--muted);
  font-size: 12px;
}

.admin-project-files {
  display: grid;
  gap: 6px;
  padding: 8px 10px 10px 28px;
  border-top: 1px solid var(--line);
}

.admin-project-files .admin-project-node {
  background: color-mix(in srgb, var(--paper-soft) 78%, var(--paper));
}

.admin-file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.admin-file-item a {
  min-width: 0;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.admin-file-item a:hover {
  color: var(--brand);
}

.admin-file-item button {
  min-height: 0;
  padding: 0 4px;
  background: transparent;
  color: var(--danger);
  box-shadow: none;
  line-height: 1;
}

.admin-file-item button.small.danger {
  min-height: 32px;
  padding: 6px 10px;
  background: color-mix(in srgb, var(--danger) 12%, var(--paper));
  border: 1px solid color-mix(in srgb, var(--danger) 38%, var(--line));
  line-height: 1.2;
}

.admin-file-item button.small.danger:hover {
  background: var(--danger);
  color: #fff;
}

.schema-grid {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  margin-top: 16px;
}

.schema-card {
  display: grid;
  gap: 10px;
  padding: 17px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-top: 4px solid var(--brand);
  border-radius: 8px;
}

.schema-card h3,
.schema-card p {
  margin-bottom: 0;
}

.schema-card p {
  color: var(--muted);
  line-height: 1.45;
}

.schema-card span {
  color: var(--muted);
  font-size: 13px;
}

.schema-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.schema-card .button-link {
  justify-self: start;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(20, 21, 24, 0.58);
  backdrop-filter: blur(4px);
}

.modal-panel {
  width: min(720px, 100%);
  max-height: min(760px, calc(100vh - 48px));
  overflow: auto;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.modal-header h2 {
  margin-bottom: 0;
}

.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  align-self: end;
}

.project-create-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 14px;
}

.project-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.project-parent-line {
  margin: -2px 0 14px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.projects-list {
  display: grid;
  gap: 10px;
}

.project-admin-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: 8px;
}

.project-admin-node {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
}

.project-admin-node summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  font-weight: 850;
}

.project-admin-node summary::-webkit-details-marker {
  display: none;
}

.project-admin-node summary::before {
  content: "+";
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 18px;
  border-radius: 6px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
}

.project-admin-node[open] summary::before {
  content: "-";
}

.project-admin-node summary span {
  flex: 1;
}

.project-admin-node summary small {
  color: var(--muted);
  font-size: 12px;
}

.project-admin-node-body {
  display: grid;
  gap: 8px;
  padding: 8px 10px 10px 28px;
  border-top: 1px solid var(--line);
}

.project-admin-children {
  display: grid;
  gap: 8px;
}

.project-admin-item div {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.project-admin-item span {
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.project-admin-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.error,
.message {
  min-height: 20px;
  color: var(--danger);
}

.message {
  margin-bottom: 0;
}

.hidden {
  display: none;
}

@media (max-width: 980px) {
  .login-shell,
  .client-layout,
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .login-shell {
    min-height: 0;
  }

  .client-layout {
    height: auto;
    min-height: 0;
  }

  .brand-panel,
  .login-card {
    padding: 34px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-brand {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .user-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .auth-body,
  .client-layout,
  .admin-layout {
    padding: 18px;
  }

  .grid-form,
  .inline-controls,
  .project-create-form {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .section-header,
  .viewer-header,
  .modal-header,
  .modal-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .modal-actions button {
    width: 100%;
  }

  .project-admin-item {
    align-items: flex-start;
    flex-direction: column;
  }
}