:root {
  color-scheme: light;
  --bg-top: #f3efe6;
  --bg-bottom: #dbe8ef;
  --panel: rgba(255, 255, 255, 0.84);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --card-bg: rgba(255, 255, 255, 0.84);
  --card-subtle: rgba(22, 33, 43, 0.04);
  --control-bg: rgba(255, 255, 255, 0.78);
  --input-bg: rgba(255, 255, 255, 0.9);
  --line: rgba(24, 35, 45, 0.1);
  --text: #16212b;
  --muted: #607080;
  --accent: #106c63;
  --accent-strong: #0a514a;
  --danger: #b04545;
  --shadow: 0 26px 80px rgba(22, 33, 43, 0.14);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg-top: #0f171d;
  --bg-bottom: #18232d;
  --panel: rgba(20, 31, 40, 0.86);
  --panel-strong: rgba(23, 36, 47, 0.92);
  --card-bg: rgba(30, 45, 57, 0.9);
  --card-subtle: rgba(255, 255, 255, 0.06);
  --control-bg: rgba(37, 55, 70, 0.86);
  --input-bg: rgba(28, 42, 54, 0.95);
  --line: rgba(203, 221, 236, 0.16);
  --text: #e7f0f7;
  --muted: #9db2c3;
  --accent: #2ea796;
  --accent-strong: #4ec1b1;
  --danger: #ff8585;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "Georgia", "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(16, 108, 99, 0.15), transparent 32%),
    radial-gradient(circle at bottom right, rgba(201, 127, 70, 0.12), transparent 28%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

button,
input,
select {
  font: inherit;
}

canvas,
video {
  max-width: 100%;
}

button {
  cursor: pointer;
}

.screen {
  min-height: 100vh;
  padding: 28px;
}

.hero {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.brand-mark {
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: 0.84rem;
}

.brand-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.welcome-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  padding: 30px;
}

.headline {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.92;
  max-width: 8ch;
}

.lead {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.78;
}

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

.info-card,
.step-card,
.form-card,
.shell-pane,
.sidebar,
.folder-pane,
.empty-state {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 22px;
}

.info-card {
  padding: 20px;
}

.info-card h3,
.step-card h3,
.form-card h2,
.shell-pane h2,
.folder-pane h2,
.empty-state h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.info-card p,
.step-card p,
.form-card p,
.shell-pane p,
.folder-pane p,
.empty-state p,
.field-note,
.kv-value {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.step-list {
  padding: 18px;
}

.step-list ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.step-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid transparent;
}

.step-item strong {
  display: block;
  margin-bottom: 4px;
}

.step-item.active {
  background: rgba(16, 108, 99, 0.09);
  border-color: rgba(16, 108, 99, 0.18);
}

.step-item.done {
  background: rgba(16, 108, 99, 0.06);
}

.step-index {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: rgba(16, 108, 99, 0.1);
  color: var(--accent-strong);
}

.form-card {
  padding: 24px;
}

.form-grid {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.95rem;
}

.field input,
.field select {
  width: 100%;
  border: 1px solid rgba(24, 35, 45, 0.12);
  border-radius: 14px;
  padding: 13px 14px;
  background: var(--input-bg);
  color: var(--text);
}

.field input:focus,
.field select:focus {
  outline: 2px solid rgba(16, 108, 99, 0.2);
  border-color: rgba(16, 108, 99, 0.35);
}

.field-note {
  font-size: 0.92rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 12px 18px;
  transition:
    transform 160ms ease,
    opacity 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(22, 33, 43, 0.08);
}

.button-primary {
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.button-secondary {
  background: var(--control-bg);
  border-color: rgba(24, 35, 45, 0.08);
  color: var(--text);
}

.button-danger {
  background: rgba(176, 69, 69, 0.14);
  border-color: rgba(176, 69, 69, 0.14);
  color: var(--danger);
}

.status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
}

.status-neutral {
  background: rgba(22, 33, 43, 0.06);
}

.status-success {
  background: rgba(16, 108, 99, 0.12);
  color: var(--accent-strong);
}

.status-error {
  background: rgba(176, 69, 69, 0.12);
  color: var(--danger);
}

.summary-grid,
.kv-grid,
.stats-grid {
  display: grid;
  gap: 14px;
}

.summary-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  margin-top: 18px;
}

.kv-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 16px;
}

.kv {
  padding: 16px;
  border-radius: 18px;
  background: var(--card-subtle);
}

.kv-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.kv-value {
  color: var(--text);
  word-break: break-all;
}

.console {
  width: min(1280px, 100%);
  margin: 0 auto;
}

.shell {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 18px;
  min-height: calc(100vh - 56px);
}

.sidebar {
  padding: 18px;
  display: grid;
  align-content: start;
  gap: 16px;
}

.sidebar-header {
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sidebar-title {
  margin: 0;
  font-size: 1.4rem;
}

.sidebar-subtitle {
  margin-top: 6px;
  color: var(--muted);
}

.sidebar-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mobile-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.theme-toggle {
  width: 50px;
  height: 28px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--control-bg);
}

:root[data-theme="dark"] .theme-toggle {
  background: rgba(0, 0, 0, 0.24);
}

.theme-toggle-knob {
  display: block;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 3px 8px rgba(22, 33, 43, 0.3);
  transform: translateX(0);
  transition: transform 180ms ease;
}

.theme-toggle.dark .theme-toggle-knob {
  transform: translateX(20px);
}

.tree {
  display: grid;
  gap: 8px;
}

.usage-card {
  margin-top: auto;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card-bg);
}

.usage-card-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
}

.usage-card-mark {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f0a94b, #d2752a);
}

.usage-card-percent {
  color: var(--muted);
  font-size: 0.9rem;
}

.usage-bar {
  height: 8px;
  margin-top: 12px;
  border-radius: 999px;
  background: var(--card-subtle);
  overflow: hidden;
}

.usage-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #df9442, #c86435);
}

.usage-card-detail {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 180ms ease, opacity 180ms ease;
}

.usage-card-detail p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.usage-card:hover .usage-card-detail,
.usage-card:focus-within .usage-card-detail {
  max-height: 72px;
  opacity: 1;
}

.tree button {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 12px 14px;
  background: transparent;
  color: var(--text);
}

.tree button.active {
  background: rgba(16, 108, 99, 0.08);
  border-color: rgba(16, 108, 99, 0.16);
}

.tree-label {
  display: block;
  margin-bottom: 4px;
}

.tree-meta {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
}

.shell-pane {
  padding: 18px;
  display: grid;
  gap: 18px;
}

.pane-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.pane-header-nav {
  align-items: center;
}

.pane-nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pane-back {
  min-width: 74px;
}

.pane-title {
  margin: 0;
  font-size: 2rem;
}

.pane-copy {
  margin-top: 8px;
  max-width: 48rem;
}

.view-switch {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card-bg);
}

.view-switch-button {
  min-width: 72px;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  background: transparent;
  color: var(--muted);
}

.view-switch-button.active {
  background: rgba(16, 108, 99, 0.12);
  color: var(--accent-strong);
}

.stats-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat {
  padding: 16px;
  border-radius: 18px;
  background: var(--card-subtle);
}

.stat-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat-value {
  font-size: 1.45rem;
}

.folder-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
}

.finder-workspace {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.25fr);
  gap: 18px;
  min-height: 520px;
}

.finder-collection,
.finder-detail {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 22px;
}

.finder-collection {
  padding: 16px;
}

.finder-collection.grid-mode {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  gap: 14px;
  align-content: start;
}

.finder-collection.list-mode {
  display: grid;
  gap: 10px;
  align-content: start;
}

.finder-entry {
  width: 100%;
  border: 1px solid rgba(24, 35, 45, 0.08);
  color: var(--text);
  background: var(--card-bg);
}

.finder-entry.grid-mode {
  display: grid;
  justify-items: start;
  gap: 12px;
  min-height: 154px;
  padding: 18px 16px;
  border-radius: 22px;
}

.finder-entry.list-mode {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 18px;
}

.finder-entry.selected {
  border-color: rgba(16, 108, 99, 0.24);
  background: rgba(16, 108, 99, 0.1);
}

.finder-entry-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: rgba(16, 108, 99, 0.1);
  color: var(--accent-strong);
  font-size: 1.15rem;
}

.finder-entry.grid-mode .finder-entry-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  font-size: 1.3rem;
}

.finder-entry-body {
  display: grid;
  gap: 4px;
  text-align: left;
}

.finder-entry-body strong {
  font-size: 1rem;
}

.finder-entry-body span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.finder-entry-badge {
  justify-self: start;
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(22, 33, 43, 0.08);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.finder-entry.list-mode .finder-entry-badge {
  justify-self: end;
}

.shell-mobile-pane {
  min-height: calc(100vh - 56px);
}

.finder-detail {
  padding: 20px;
  display: grid;
  align-content: start;
  gap: 16px;
}

.detail-block h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.detail-block p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.detail-card {
  padding: 16px;
  border-radius: 18px;
  background: var(--card-subtle);
}

.folder-workspace {
  display: grid;
  gap: 14px;
}

.folder-toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.folder-create-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.folder-input {
  border: 1px solid rgba(24, 35, 45, 0.12);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--input-bg);
  color: var(--text);
}

.upload-zone {
  border: 1px dashed var(--line);
  border-radius: 18px;
  padding: 16px;
  background: var(--card-bg);
}

.upload-zone p {
  margin: 0;
}

.folder-list {
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--card-bg);
}

.folder-init {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--card-subtle);
}

.folder-init p {
  margin: 0;
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 2px solid rgba(24, 35, 45, 0.2);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.folder-list-head,
.folder-list-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(120px, 0.45fr) minmax(120px, 0.45fr) minmax(260px, 0.9fr);
  gap: 10px;
  padding: 12px 14px;
}

.folder-list-head {
  background: var(--card-subtle);
  border-bottom: 1px solid var(--line);
}

.folder-list-row {
  border-bottom: 1px solid var(--line);
}

.folder-list-row:last-child {
  border-bottom: 0;
}

.folder-list-row.is-folder {
  cursor: pointer;
}

.folder-list-row.is-folder:hover {
  background: var(--card-subtle);
}

.file-ops {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.account-create-card,
.account-table-card,
.account-action-card {
  padding: 18px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 22px;
}

.account-create-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 34px;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
}

.account-table-head,
.account-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) minmax(280px, 1.8fr);
  gap: 12px;
  align-items: center;
}

.account-table-head {
  padding: 0 0 12px;
  border-bottom: 1px solid var(--line);
}

.account-table-body {
  display: grid;
}

.account-row {
  padding: 16px 0;
  border-bottom: 1px solid rgba(24, 35, 45, 0.08);
}

.account-row:last-child {
  border-bottom: 0;
}

.account-cell {
  display: grid;
  gap: 4px;
}

.account-cell strong {
  font-size: 0.98rem;
}

.account-cell span,
.account-admin-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.empty-row {
  display: block;
  color: var(--muted);
}

.folder-pane,
.empty-state {
  padding: 18px;
}

.folder-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.folder-item {
  border: 1px solid rgba(24, 35, 45, 0.08);
  border-radius: 16px;
  padding: 14px;
  background: var(--card-bg);
}

.folder-item strong {
  display: block;
  margin-bottom: 4px;
}

.folder-item span {
  display: block;
  font-size: 0.92rem;
  color: var(--muted);
}

.banner {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(201, 127, 70, 0.12);
  color: #784115;
}

.qr-panel {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card-bg);
}

.empty-state.compact {
  min-height: auto;
}

.qr-canvas {
  display: block;
  width: 240px;
  max-width: 100%;
  margin-top: 12px;
  border-radius: 18px;
  background: #fff;
}

.scan-box {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card-bg);
}

.scan-mount {
  overflow: hidden;
  margin-top: 12px;
  border-radius: 18px;
}

.scan-lock {
  color: var(--danger);
}

@media (max-width: 980px) {
  .welcome-panel,
  .flow-grid,
  .shell,
  .folder-layout,
  .finder-workspace {
    grid-template-columns: 1fr;
  }

  .screen {
    padding: 18px;
  }

  .pane-header {
    flex-direction: column;
  }

  .view-switch {
    align-self: flex-start;
  }

  .account-create-grid,
  .account-table-head,
  .account-row {
    grid-template-columns: 1fr;
  }

  .folder-create-row,
  .folder-list-head,
  .folder-list-row {
    grid-template-columns: 1fr;
  }

  .checkbox-field {
    padding-top: 0;
  }
}