:root {
  --surface-app: #f3f5f8;
  --surface-panel: #ffffff;
  --surface-muted: #f7f9fc;
  --surface-subtle: #eef3f8;
  --line-soft: #d6dee8;
  --line-strong: #bcc9d7;
  --ink-strong: #192431;
  --ink-muted: #5f6e7f;
  --accent: #1f4f95;
  --accent-soft: #deebff;
  --success: #166148;
  --success-soft: #dcf6ea;
  --warn: #975f10;
  --warn-soft: #fff0d8;
  --info: #0f766e;
  --info-soft: #dcf5f2;
  --shadow-soft: 0 10px 24px rgba(25, 36, 49, 0.04);
}

* { box-sizing: border-box; }

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

body {
  font-family: "IBM Plex Sans", Inter, Onest, "Helvetica Neue", ui-sans-serif, system-ui, sans-serif;
  color: var(--ink-strong);
  background: var(--surface-app);
}

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

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  background: var(--surface-panel);
  border-bottom: 1px solid var(--line-soft);
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  padding: 20px 0 16px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 0;
  font-size: 28px;
  line-height: 1.1;
}

h2 {
  margin-bottom: 16px;
  font-size: 24px;
  line-height: 1.15;
}

h3 {
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.2;
}

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

.nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: var(--surface-muted);
  color: var(--ink-muted);
  text-decoration: none;
}

.nav__link--active {
  background: var(--surface-panel);
  color: var(--ink-strong);
  border-color: var(--line-strong);
}

.shell-strip {
  background: var(--surface-subtle);
  border-bottom: 1px solid var(--line-soft);
}

.shell-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 54px;
  padding: 10px 0;
}

.shell-chip-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.shell-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: var(--surface-panel);
  color: var(--ink-muted);
  font-size: 13px;
}

.shell-chip--ok {
  background: var(--success-soft);
  color: var(--success);
  border-color: rgba(22, 97, 72, 0.12);
}

.shell-chip--info {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(31, 79, 149, 0.12);
}

.shell-chip--warn {
  background: var(--warn-soft);
  color: var(--warn);
  border-color: rgba(151, 95, 16, 0.12);
}

.shell-note {
  color: var(--ink-muted);
  font-size: 14px;
  text-align: right;
}

.session-strip {
  border-bottom: 1px solid var(--line-soft);
  background: #edf4fb;
}

.session-strip__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.8fr);
  gap: 16px;
  align-items: center;
  min-height: 72px;
  padding: 12px 0;
}

.session-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(0, 1fr);
  align-items: start;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface-panel);
  box-shadow: var(--shadow-soft);
}

.session-title {
  display: block;
  font-size: 16px;
  line-height: 1.2;
}

.session-actions {
  display: grid;
  gap: 8px;
  justify-items: end;
}

.session-auth-form,
.session-auth-live {
  display: grid;
  width: 100%;
  gap: 8px;
  align-items: center;
  justify-content: end;
}

.session-auth-form {
  grid-template-columns: minmax(0, 1fr) minmax(180px, 0.9fr) auto;
}

.session-auth-live {
  grid-template-columns: auto auto;
}

.session-auth-input,
.session-logout-btn {
  min-height: 36px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: var(--surface-panel);
  color: var(--ink-strong);
}

.session-auth-input {
  min-width: 0;
  width: 100%;
  padding: 0 12px;
}

.session-logout-btn {
  padding: 0 12px;
  cursor: pointer;
}

.session-logout-btn:disabled {
  opacity: 0.72;
  cursor: wait;
}

.session-role-btn {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: var(--surface-muted);
  color: var(--ink-muted);
  cursor: pointer;
}

.session-role-btn--active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(31, 79, 149, 0.12);
}

.session-role-btn:disabled {
  cursor: wait;
  opacity: 0.72;
}

.session-note {
  margin: 0;
  color: var(--ink-muted);
  font-size: 14px;
}

.action-strip {
  border-bottom: 1px solid var(--line-soft);
  background: #f7fafc;
}

.action-strip__inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.6fr);
  gap: 16px;
  padding: 14px 0;
  align-items: start;
}

.action-strip__summary,
.action-strip__card {
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface-panel);
  box-shadow: var(--shadow-soft);
}

.action-strip__summary strong,
.action-strip__card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  line-height: 1.2;
}

.action-strip__summary p:last-child,
.action-strip__card p {
  margin-bottom: 0;
  color: var(--ink-muted);
}

.action-strip__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

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

.action-strip__links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.band {
  padding: 24px 0;
}

.band--light {
  background: #eaf0f7;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.app-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--surface-panel);
}

.app-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  padding: 14px 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.app-footer__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.app-footer__version {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: var(--surface-muted);
  color: var(--ink-strong);
  white-space: nowrap;
}

.action-link--disabled {
  pointer-events: none;
  opacity: 0.62;
}

.panel,
.card,
.metric-card,
.overview-card,
.note-card {
  background: var(--surface-panel);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
}

@media (max-width: 720px) {
  .topbar__inner,
  .shell-strip__inner,
  .app-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-strip__inner,
  .session-card,
  .session-auth-form,
  .session-auth-live,
  .action-strip__inner {
    grid-template-columns: 1fr;
  }

  .shell-note {
    text-align: left;
  }

  .session-actions {
    justify-items: stretch;
    width: 100%;
  }

  .session-auth-form,
  .session-auth-live {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .action-strip__cards {
    grid-template-columns: 1fr;
    width: 100%;
  }
}

.panel {
  padding: 18px;
}

.panel--inner {
  margin-top: 12px;
  background: var(--surface-muted);
}

.panel-head,
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.section-head--compact {
  margin-bottom: 12px;
}

.status-badge,
.section-note {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--ink-muted);
  border: 1px solid var(--line-soft);
  font-size: 13px;
}

.runtime-note,
.form-note {
  margin: 12px 0 0;
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.45;
}

.lede {
  color: var(--ink-muted);
  line-height: 1.5;
}

.badge-row,
.stack {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.stack {
  display: grid;
  gap: 12px;
}

.badge,
.filter-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 13px;
}

.filter-pill {
  background: var(--surface-muted);
  border: 1px solid var(--line-soft);
  color: var(--ink-muted);
}

.badge--rights,
.badge--privacy {
  background: var(--warn-soft);
  color: var(--warn);
}

.badge--access {
  background: var(--info-soft);
  color: var(--info);
}

.badge--meta,
.badge--scope {
  background: var(--accent-soft);
  color: var(--accent);
}

.badge--progress {
  background: var(--success-soft);
  color: var(--success);
}

.metric-label {
  display: block;
  font-size: 12px;
  color: var(--ink-muted);
}

.metric-card,
.overview-card,
.note-card {
  padding: 14px;
}

.demo-card {
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface-panel);
  box-shadow: var(--shadow-soft);
}

.demo-card__head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.demo-card p {
  margin-bottom: 0;
  color: var(--ink-muted);
}

.demo-card__meta,
.demo-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.metric-card strong,
.overview-card strong,
.note-card strong {
  display: block;
  margin: 4px 0 6px;
}

.card {
  padding: 14px;
}

.card strong {
  display: block;
  margin-bottom: 6px;
}

.card p,
.overview-card p,
.note-card p {
  margin-bottom: 0;
  color: var(--ink-muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.table-wrap {
  overflow-x: auto;
}

.action-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--line-soft);
  background: var(--surface-muted);
  color: var(--ink-strong);
  text-decoration: none;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
}

.status-chip--ok {
  background: var(--success-soft);
  color: var(--success);
}

.status-chip--pending {
  background: var(--warn-soft);
  color: var(--warn);
}

.progress-bar {
  height: 10px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.progress-bar__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent) 0%, var(--success) 100%);
}

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

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

.meta-row span {
  color: var(--ink-muted);
  font-size: 13px;
}

.meta-row strong {
  display: block;
  text-align: right;
}

.search-input,
.text-input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #fff;
  color: var(--ink-strong);
}

.search-input {
  min-height: 48px;
  padding: 0 14px;
  font-size: 16px;
}

.primary-btn,
.join-btn,
.toggle-btn,
.filter-tab {
  min-height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--line-soft);
  background: var(--surface-panel);
  color: var(--ink-strong);
  cursor: pointer;
}

.primary-btn {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.primary-btn--muted {
  background: var(--surface-panel);
  color: var(--ink-strong);
  border-color: var(--line-soft);
}

.primary-btn:disabled,
.join-btn:disabled,
.toggle-btn:disabled {
  cursor: wait;
  opacity: 0.72;
}

.empty-note {
  color: var(--ink-muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .shell-strip__inner,
  .topbar__inner {
    align-items: start;
    flex-direction: column;
  }

  .shell-note {
    text-align: left;
  }
}