:root {
  --bg: #f6f7f2;
  --surface: #ffffff;
  --surface-2: #f1f5ef;
  --ink: #1b2320;
  --muted: #66736d;
  --line: #d9dfd7;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --green-0: #edf2ea;
  --green-1: #bff0cf;
  --green-2: #72d995;
  --green-3: #2eae61;
  --green-4: #157a42;
  --danger: #b42318;
  --warning: #b45309;
  --shadow: 0 12px 28px rgba(27, 35, 32, 0.08);
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.topbar {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1,
.toolbar h2,
.panel-title h2 {
  margin: 0;
  line-height: 1.15;
}

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

.topbar p,
.toolbar p {
  margin: 6px 0 0;
  color: var(--muted);
}

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

.session-badge {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  max-width: 240px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  border-radius: 8px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layout {
  display: grid;
  grid-template-columns: minmax(250px, 300px) minmax(0, 1fr);
  gap: 18px;
  padding: 18px 28px 32px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 104px;
  z-index: 1;
  max-height: calc(100vh - 124px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 4px;
  padding-bottom: 12px;
  scrollbar-gutter: stable;
}

.sidebar::-webkit-scrollbar {
  width: 8px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 999px;
}

.panel,
.feed-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 16px;
  margin-bottom: 14px;
}

.feed-panel {
  padding: 16px;
  grid-column: 1 / -1;
  max-height: none;
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-title h2,
.toolbar h2 {
  font-size: 16px;
}

.segmented {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  margin-bottom: 14px;
}

.segment {
  border: 0;
  background: transparent;
  min-height: 34px;
  border-radius: 6px;
  color: var(--muted);
}

.segment.active {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(27, 35, 32, 0.12);
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
}

input,
select {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.13);
}

.button {
  border: 1px solid var(--line);
  min-height: 38px;
  border-radius: 8px;
  padding: 8px 13px;
  background: var(--surface);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  white-space: nowrap;
}

.button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: white;
}

.button.primary:hover {
  background: var(--brand-dark);
}

.button.ghost {
  background: transparent;
}

.button.danger {
  color: var(--danger);
}

.button.full {
  width: 100%;
}

.content {
  min-width: 0;
}

.toolbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0 16px;
}

.toolbar-subline {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.toolbar-subline p {
  margin: 0;
}

.wall-year-control {
  width: auto;
  display: inline-flex;
  grid-template-columns: none;
  align-items: center;
  gap: 6px;
}

.wall-year-control select {
  width: auto;
  min-height: 34px;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(72px, 1fr));
  gap: 8px;
  min-width: 340px;
}

.stats-strip div {
  min-height: 54px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  display: grid;
  align-content: center;
  padding: 8px 10px;
}

.stats-strip strong {
  font-size: 20px;
  line-height: 1;
}

.stats-strip span {
  color: var(--muted);
  margin-top: 4px;
}

.message {
  border: 1px solid #facc15;
  background: #fffbeb;
  color: #713f12;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
  line-height: 1.5;
}

.message.error {
  border-color: #fca5a5;
  background: #fef2f2;
  color: var(--danger);
}

.message a {
  color: var(--brand);
}

.panel-divider {
  height: 1px;
  background: var(--line);
  margin: 14px 0;
}

.profile-form {
  margin-bottom: 0;
}

.member-grid {
  display: grid;
  gap: 14px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.section-head h3 {
  margin: 0;
  font-size: 16px;
}

.section-head span {
  color: var(--muted);
}

.team-overview,
.member-directory,
.member-detail-view,
.member-submissions {
  display: grid;
  gap: 12px;
}

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

.team-filter {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  padding: 4px 10px;
}

.team-filter.active {
  border-color: #93c5fd;
  background: #eff6ff;
  color: #1d4ed8;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.team-card {
  min-height: 96px;
  display: grid;
  gap: 10px;
  align-content: center;
  text-align: left;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  padding: 12px;
  box-shadow: var(--shadow);
}

.team-card:hover,
.team-card.active {
  border-color: #93c5fd;
  background: #f8fbff;
}

.team-card strong {
  font-size: 17px;
}

.team-card-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
  color: var(--muted);
}

.team-card-stats span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.team-card-stats b {
  color: var(--ink);
}

.member-table-wrap,
.member-feed-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.member-table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  table-layout: fixed;
}

.member-table th,
.member-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.member-table th {
  background: #f8faf7;
  color: var(--muted);
  font-weight: 700;
}

.member-table tbody tr {
  cursor: pointer;
}

.member-table tbody tr:hover td,
.member-table tbody tr:focus td {
  background: #fbfcfa;
}

.member-table tbody tr:last-child td {
  border-bottom: 0;
}

.member-cell {
  width: 160px;
}

.member-cell-name {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.member-cell-name strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.member-real-name,
.member-card-real-name {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.member-handles-cell {
  width: 260px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric-cell,
.member-action-cell {
  width: 90px;
  white-space: nowrap;
}

.team-pill {
  display: inline-flex;
  max-width: 140px;
  min-height: 24px;
  align-items: center;
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-link {
  color: var(--brand);
}

.member-detail-bar {
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 10px 12px;
}

.member-detail-title {
  min-width: 0;
  text-align: right;
}

.member-detail-title h3 {
  margin: 0;
  font-size: 18px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.member-detail-title span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.member-feed-table {
  min-width: 920px;
}

.empty-state.compact {
  min-height: 96px;
}

.member-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.member-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--line);
}

.member-name {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.member-name h3 {
  margin: 0;
  font-size: 18px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.current-pill,
.platform-pill {
  border-radius: 999px;
  background: #e0f2fe;
  color: #075985;
  padding: 3px 8px;
  font-size: 12px;
  white-space: nowrap;
}

.member-handles {
  margin-top: 8px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.platform-pill {
  background: var(--surface-2);
  color: var(--muted);
}

.platform-pill.error {
  background: #fef2f2;
  color: var(--danger);
}

.member-stats {
  display: grid;
  grid-template-columns: repeat(3, 74px);
  gap: 8px;
}

.member-stats div {
  border-left: 1px solid var(--line);
  padding-left: 10px;
}

.member-stats strong {
  display: block;
  font-size: 18px;
  line-height: 1;
}

.member-stats span {
  color: var(--muted);
  display: block;
  margin-top: 5px;
}

.wall-wrap {
  overflow-x: auto;
  padding: 12px 16px 10px;
}

.activity-wall {
  --wall-cell: 14px;
  --wall-gap: 4px;
  width: max-content;
  min-width: 100%;
}

.wall-months {
  min-height: 22px;
  margin-left: 36px;
  display: grid;
  column-gap: var(--wall-gap);
  color: var(--muted);
  font-size: 12px;
}

.wall-months span {
  white-space: nowrap;
}

.wall-body {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.wall-weekdays {
  width: 28px;
  display: grid;
  grid-template-rows: repeat(7, var(--wall-cell));
  row-gap: var(--wall-gap);
  color: var(--muted);
  font-size: 12px;
  line-height: var(--wall-cell);
  text-align: right;
}

.wall {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, var(--wall-cell));
  grid-auto-columns: var(--wall-cell);
  gap: var(--wall-gap);
  width: max-content;
}

.day-cell {
  width: var(--wall-cell);
  height: var(--wall-cell);
  border-radius: 2px;
  background: var(--green-0);
  border: 1px solid rgba(27, 35, 32, 0.04);
}

.day-cell.level-1 {
  background: var(--green-1);
}

.day-cell.level-2 {
  background: var(--green-2);
}

.day-cell.level-3 {
  background: var(--green-3);
}

.day-cell.level-4 {
  background: var(--green-4);
}

.activity-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 18px 28px;
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line);
}

.activity-stats strong {
  display: block;
  font-size: 28px;
  line-height: 1;
  font-weight: 500;
}

.activity-stats span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.contest-stats {
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line);
  background: #fbfcfa;
}

.contest-stats-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.contest-stats-head strong {
  font-size: 15px;
}

.contest-stats-head span,
.contest-empty {
  color: var(--muted);
}

.contest-platform-groups {
  display: grid;
  gap: 12px;
}

.contest-platform-group {
  display: grid;
  gap: 8px;
}

.contest-platform-group + .contest-platform-group {
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.contest-platform-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.contest-platform-group-head strong {
  font-size: 14px;
}

.contest-platform-group-head span {
  color: var(--muted);
}

.contest-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 8px;
}

.contest-category {
  min-height: 54px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  display: grid;
  align-content: center;
}

.contest-category strong {
  font-size: 18px;
  line-height: 1;
}

.contest-category span {
  color: var(--muted);
  margin-top: 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-state {
  min-height: 180px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.6);
  padding: 24px;
  text-align: center;
}

.handle-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.handle-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.handle-main {
  min-width: 0;
}

.handle-main strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.handle-main span {
  color: var(--muted);
  display: block;
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.feed {
  max-height: min(640px, calc(100vh - 184px));
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feed-controls {
  display: grid;
  grid-template-columns: minmax(120px, 0.9fr) minmax(150px, 1fr) minmax(180px, 1.35fr) minmax(120px, 0.9fr) 150px 150px auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 12px;
}

.feed-meta-bar {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  color: var(--muted);
}

.feed-pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.feed-pagination .button {
  min-height: 34px;
  padding: 6px 10px;
}

.feed-pagination select {
  width: auto;
  min-height: 34px;
}

.page-jump {
  width: auto;
  display: inline-flex;
  grid-template-columns: none;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.page-jump input {
  width: 68px;
  min-height: 34px;
}

.feed-table {
  width: 100%;
  min-width: 1120px;
  border-collapse: collapse;
  table-layout: fixed;
}

.feed-table th,
.feed-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.feed-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f8faf7;
  color: var(--muted);
  font-weight: 700;
}

.feed-table tbody tr:hover td {
  background: #fbfcfa;
}

.feed-table tbody tr:last-child td {
  border-bottom: 0;
}

.feed-time {
  width: 154px;
  white-space: nowrap;
}

.feed-platform {
  width: 112px;
}

.feed-user {
  width: 118px;
}

.feed-account {
  width: 138px;
}

.feed-language {
  width: 190px;
}

.feed-result {
  width: 86px;
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  max-width: 100%;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.account-cell,
.problem-cell .submission-link {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.problem-cell .submission-link {
  display: block;
  color: var(--brand);
  text-decoration: none;
}

.problem-cell .submission-link:hover {
  text-decoration: underline;
}

.verdict {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  border-radius: 999px;
  padding: 2px 8px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 12px;
}

.verdict.ac {
  background: #dcfce7;
  color: #166534;
}

.verdict.bad {
  background: #fef2f2;
  color: var(--danger);
}

.muted {
  color: var(--muted);
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .layout {
    grid-template-columns: minmax(230px, 280px) minmax(0, 1fr);
  }

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

@media (max-width: 820px) {
  .topbar {
    position: static;
    align-items: flex-start;
    padding: 16px;
  }

  .layout {
    grid-template-columns: 1fr;
    padding: 14px 16px 24px;
  }

  .sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
    padding-bottom: 0;
  }

  .toolbar,
  .topbar {
    display: grid;
  }

  .top-actions {
    justify-content: stretch;
  }

  .top-actions .button,
  .session-badge {
    flex: 1;
  }

  .stats-strip {
    width: 100%;
    min-width: 0;
  }

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

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

  .member-detail-bar {
    align-items: flex-start;
    display: grid;
  }

  .member-detail-title {
    text-align: left;
  }

  .member-head {
    grid-template-columns: 1fr;
  }

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

  .member-stats div {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 8px;
  }

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

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

  .feed-controls .button {
    width: 100%;
  }

  .feed-meta-bar {
    align-items: flex-start;
    display: grid;
  }

  .feed-pagination {
    justify-content: flex-start;
  }
}