: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: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--ink-strong);
  background: var(--surface-app);
  overflow-x: hidden;
}

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

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

main,
section,
article,
aside,
div,
p,
strong,
span,
a,
button,
input,
select,
textarea {
  min-width: 0;
}

p,
strong,
span,
a,
button,
input,
select,
textarea {
  overflow-wrap: anywhere;
}

.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-auth-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  white-space: nowrap;
}

body.is-guest[data-surface="portal"] .shell-strip,
body.is-guest[data-surface="index"] .shell-strip,
body.is-guest[data-surface="portfolio"] .shell-strip {
  display: none;
}

body.is-guest[data-surface="portal"] .action-strip,
body.is-guest[data-surface="index"] .action-strip,
body.is-guest[data-surface="portfolio"] .action-strip {
  display: none;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.hero-actions .primary-btn {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

body.is-guest[data-surface="portal"] .nav__link[href^="/challenge"],
body.is-guest[data-surface="portal"] .nav__link[href^="/observatory"],
body.is-guest[data-surface="portal"] .nav__link[href^="/publish"],
body.is-guest[data-surface="index"] .nav__link[href^="/challenge"],
body.is-guest[data-surface="index"] .nav__link[href^="/observatory"],
body.is-guest[data-surface="index"] .nav__link[href^="/publish"],
body.is-guest[data-surface="portfolio"] .nav__link[href^="/challenge"],
body.is-guest[data-surface="portfolio"] .nav__link[href^="/observatory"],
body.is-guest[data-surface="portfolio"] .nav__link[href^="/publish"] {
  display: none;
}

body.is-guest[data-surface="portal"] .session-strip__inner,
body.is-guest[data-surface="index"] .session-strip__inner,
body.is-guest[data-surface="portfolio"] .session-strip__inner {
  grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.65fr);
  min-height: 54px;
}

body.is-guest[data-surface="portal"] .session-card,
body.is-guest[data-surface="index"] .session-card,
body.is-guest[data-surface="portfolio"] .session-card {
  grid-template-columns: auto auto;
  align-items: center;
  padding-block: 8px;
}

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

.app-footer__link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.app-footer__link:hover {
  text-decoration: underline;
}

.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%;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .panel,
  .card,
  .metric-card,
  .overview-card,
  .note-card,
  .feature-card {
    max-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;
}

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

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

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

.feature-card__meta,
.feature-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(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 12px;
}

.table-wrap {
  overflow-x: auto;
  max-width: 100%;
  min-width: 0;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 720px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

.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;
  }
}

/* Product shell: compact, readable and shared by every QazRead surface. */
:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 72%, white);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink-strong);
  color: #fff;
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
}

.topbar__inner {
  align-items: center;
  padding: 12px 0;
}

.topbar h1 {
  font-size: 24px;
}

.topbar__inner > div:first-child {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 10px;
  align-items: center;
}

.topbar__inner > div:first-child::before {
  grid-row: 1 / span 2;
  width: 34px;
  height: 34px;
  content: "";
  background: url("./qazread-mark.svg") center / contain no-repeat;
}

.topbar .eyebrow {
  margin-bottom: 3px;
}

.nav {
  flex-wrap: nowrap;
  overflow-x: auto;
  max-width: 100%;
  scrollbar-width: thin;
}

.nav__link {
  flex: 0 0 auto;
  min-height: 38px;
  padding-inline: 12px;
  white-space: nowrap;
}

.shell-strip__inner {
  min-height: 46px;
  padding-block: 8px;
}

.session-strip__inner {
  min-height: 62px;
  padding-block: 8px;
}

.session-card,
.action-strip__summary,
.action-strip__card {
  box-shadow: none;
}

.band {
  padding-block: 22px;
}

.metric-card strong {
  font-size: 22px;
  line-height: 1.05;
}

.lede {
  max-width: 72ch;
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .topbar__inner {
    gap: 10px;
    padding-block: 10px;
  }

  .topbar h1 {
    font-size: 21px;
  }

  .nav {
    width: calc(100vw - 24px);
    margin-inline: 0;
    padding-bottom: 2px;
  }

  .nav__link {
    min-height: 40px;
  }

  .shell-strip__inner {
    gap: 5px;
  }

  .shell-chip-group {
    flex-wrap: nowrap;
    width: 100%;
    overflow-x: auto;
  }

  .shell-chip {
    flex: 0 0 auto;
    min-height: 28px;
    font-size: 12px;
  }

  .shell-note {
    font-size: 12px;
  }

  .session-strip__inner {
    gap: 6px;
    padding-block: 8px;
  }

  body.is-guest[data-surface="portal"] .session-strip__inner,
  body.is-guest[data-surface="index"] .session-strip__inner,
  body.is-guest[data-surface="portfolio"] .session-strip__inner,
  body.is-guest[data-surface="portal"] .session-card,
  body.is-guest[data-surface="index"] .session-card,
  body.is-guest[data-surface="portfolio"] .session-card {
    grid-template-columns: 1fr;
  }

  body.is-guest[data-surface="portal"] .session-card:has(.session-auth-link),
  body.is-guest[data-surface="index"] .session-card:has(.session-auth-link),
  body.is-guest[data-surface="portfolio"] .session-card:has(.session-auth-link) {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  body.is-guest[data-surface="portal"] .session-strip__inner:has(.session-auth-link) .session-note,
  body.is-guest[data-surface="index"] .session-strip__inner:has(.session-auth-link) .session-note,
  body.is-guest[data-surface="portfolio"] .session-strip__inner:has(.session-auth-link) .session-note {
    display: none;
  }

  .session-auth-link {
    min-height: 40px;
    padding-inline: 12px;
    font-size: 14px;
  }

  body:not(.is-guest) .session-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  body:not(.is-guest) .session-auth-live {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .session-card {
    gap: 6px;
    padding: 10px 12px;
  }

  .session-card .eyebrow {
    margin-bottom: 2px;
  }

  .session-note {
    font-size: 12px;
    line-height: 1.35;
  }

  .action-strip__inner {
    gap: 8px;
    padding-block: 10px;
  }

  .action-strip__summary,
  .action-strip__card {
    padding: 11px 12px;
  }

  .action-strip__summary p,
  .action-strip__card p {
    font-size: 13px;
    line-height: 1.4;
  }

  .band {
    padding-block: 18px;
  }

  .panel,
  .feature-card,
  .metric-card,
  .overview-card,
  .note-card,
  .card {
    padding: 13px;
  }

  .section-head,
  .panel-head {
    align-items: flex-start;
  }

  h2 {
    margin-bottom: 12px;
    font-size: 21px;
    line-height: 1.18;
  }

  .action-link,
  .primary-btn,
  .join-btn,
  .toggle-btn,
  .filter-tab {
    min-height: 44px;
  }

  .app-footer__inner {
    min-height: 0;
    padding-block: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}