:root {
  --wc-bg: #f3f4f6;
  --wc-surface: #ffffff;
  --wc-border: #e5e7eb;
  --wc-border-strong: #d1d5db;
  --wc-text: #111827;
  --wc-muted: #6b7280;
  --wc-subtle: #9ca3af;
  --wc-brand: #1f2937;
  --wc-brand-soft: rgba(31, 41, 55, 0.08);
  --wc-primary: #b45309;
  --wc-primary-soft: rgba(180, 83, 9, 0.12);
  --wc-success: #166534;
  --wc-danger: #b91c1c;
  --wc-shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
}

.challenges-page {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  background: var(--wc-bg);
}

.weekly-shell,
.weekly-shell *,
.challenge-modal-overlay,
.challenge-modal-overlay *,
.toast-zone,
.toast-zone * {
  box-sizing: border-box;
}

.weekly-shell,
.challenge-modal,
.toast {
  color: var(--wc-text);
}

.challenges-page .nav-bottom a,
.challenges-page .nav-bottom a span {
  white-space: nowrap;
}

.weekly-shell h1,
.weekly-shell h2,
.weekly-shell h3,
.weekly-shell h4,
.challenge-modal h1,
.challenge-modal h2,
.challenge-modal h3,
.challenge-modal h4 {
  margin: 0;
  color: var(--wc-text);
}

.weekly-shell p,
.challenge-modal p {
  margin: 0;
}

.weekly-shell {
  max-width: 1400px;
  margin: 36px auto 56px;
  padding: 0 5%;
}

.sprint-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 18px;
  border: 1px solid var(--wc-border);
  border-radius: 16px;
  background: var(--wc-surface);
  box-shadow: var(--wc-shadow);
  padding: 22px;
}

.hero-copy {
  display: grid;
  gap: 12px;
  align-content: start;
}

.hero-kicker {
  width: fit-content;
  border-radius: 999px;
  padding: 6px 10px;
  background: #ffff;
  border: 1px solid #fde68a;
  color: #92400e;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-copy h2 {
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  line-height: 1.2;
}

.hero-text {
  color: var(--wc-muted);
  line-height: 1.55;
  max-width: 58ch;
}

.hero-role-chip {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--wc-border);
  background: #f9fafb;
  border-radius: 10px;
  padding: 8px 12px;
}

.chip-label {
  color: var(--wc-muted);
  font-size: 0.86rem;
}

.hero-role-chip strong {
  color: #1f2937;
  font-size: 0.92rem;
}

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

.metric-tile {
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  background: #f9fafb;
  padding: 14px;
}

.metric-tile p {
  font-size: 0.78rem;
  color: var(--wc-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.metric-tile strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  line-height: 1;
  color: #111827;
}

.metric-tile.stretch {
  grid-column: 1 / -1;
}

.hero-note {
  margin-top: 8px;
  color: #374151;
  line-height: 1.5;
  font-size: 0.94rem;
}

.board-layout {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.panel-card {
  border: 1px solid var(--wc-border);
  border-radius: 16px;
  background: var(--wc-surface);
  box-shadow: var(--wc-shadow);
}

.board-column {
  padding: 16px;
  display: grid;
  gap: 12px;
  min-height: 680px;
  align-content: start;
  grid-auto-rows: min-content;
}

.board-head {
  display: grid;
  gap: 7px;
}

.panel-eyebrow {
  margin-bottom: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #92400e;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.board-head h3 {
  font-size: 1.6rem;
}

.panel-note {
  color: var(--wc-muted);
  font-size: 0.92rem;
  line-height: 1.4;
}

.search-box {
  min-height: 38px;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #fff;
  color: var(--wc-muted);
  padding: 0 10px;
  align-self: start;
}

.search-box:focus-within {
  border-color: #9ca3af;
  box-shadow: 0 0 0 4px var(--wc-brand-soft);
}

.search-box svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--wc-text);
  font: inherit;
  font-size: 0.92rem;
}

.search-box input::placeholder {
  color: var(--wc-subtle);
}

.challenge-list {
  display: grid;
  gap: 10px;
  max-height: 560px;
  overflow: auto;
  padding-right: 4px;
}

.challenge-list::-webkit-scrollbar {
  width: 8px;
}

.challenge-list::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 999px;
}

.challenge-list-empty {
  border: 1px dashed var(--wc-border-strong);
  border-radius: 12px;
  background: #f9fafb;
  color: var(--wc-muted);
  padding: 12px;
  font-size: 0.92rem;
}

.challenge-card {
  width: 100%;
  text-align: left;
  background: #fff;
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  display: grid;
  gap: 9px;
}

.challenge-card:hover {
  border-color: var(--wc-border-strong);
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.08);
}

.challenge-card.selected {
  border-color: #f59e0b;
  background: #ffff;
}

.challenge-card-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid #d1d5db;
  background: #f3f4f6;
  color: #374151;
  font-size: 0.74rem;
  font-weight: 600;
}

.status-pill.active,
.status-pill.approved {
  border-color: #86efac;
  background: #dcfce7;
  color: var(--wc-success);
}

.status-pill.closed,
.status-pill.needs_work {
  border-color: #fdba74;
  background: #ffedd5;
  color: #9a3412;
}

.status-pill.pending {
  border-color: #93c5fd;
  background: #dbeafe;
  color: #1e40af;
}

.status-pill.rejected {
  border-color: #fca5a5;
  background: #fee2e2;
  color: var(--wc-danger);
}

.challenge-card-title {
  font-size: 1.02rem;
  line-height: 1.3;
}

.challenge-card-summary {
  color: #4b5563;
  line-height: 1.45;
  font-size: 0.91rem;
}

.challenge-card-meta {
  display: grid;
  gap: 5px;
  color: #6b7280;
  font-size: 0.83rem;
}

.challenge-card-badge-row,
.challenge-badge-display,
.challenge-badge-preview-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.challenge-badge-chip {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--badge-ring, #cbd5e1);
  background: var(--badge-surface, #f8fafc);
  color: var(--badge-accent, #475569);
  box-shadow: 0 10px 20px var(--badge-shadow, rgba(71, 85, 105, 0.18));
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
}

.challenge-badge-chip.compact {
  padding: 6px 10px;
  font-size: 0.76rem;
}

.challenge-badge-chip svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.challenge-badge-chip span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.challenge-badge-tier-note,
.challenge-badge-preview-copy {
  color: #6b7280;
  font-size: 0.83rem;
  line-height: 1.45;
}

.challenge-badge-chip[data-badge-effect="mythic"] {
  box-shadow:
    0 10px 20px var(--badge-shadow, rgba(220, 38, 38, 0.34)),
    0 0 20px var(--badge-glow, rgba(251, 113, 133, 0.34));
  animation: challengeBadgeMythicPulse 2.8s ease-in-out infinite;
}

.add-challenge-card {
  width: 100%;
  min-height: 76px;
  border-radius: 12px;
  border: 1px dashed #f59e0b;
  background: #ffff;
  color: #92400e;
  font-weight: 700;
  display: grid;
  place-items: center;
  gap: 4px;
  cursor: pointer;
}

.add-challenge-card:hover {
  border-color: #d97706;
}

.add-challenge-card .plus {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fcd34d;
  color: #78350f;
  font-weight: 800;
}

.detail-column {
  padding: 18px;
  min-height: 680px;
}

.challenge-empty {
  min-height: 100%;
  border: 1px dashed var(--wc-border-strong);
  border-radius: 12px;
  background: #f9fafb;
  display: grid;
  gap: 10px;
  place-content: center;
  justify-items: center;
  text-align: center;
  color: var(--wc-muted);
  padding: 24px;
}

.empty-badge {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #bbf7d0;
  background: #dcfce7;
  color: #166534;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.challenge-empty h2 {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}

.challenge-empty p {
  max-width: 54ch;
  line-height: 1.6;
}

.challenge-detail {
  display: grid;
  gap: 14px;
}

.challenge-detail-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
}

.challenge-head-copy {
  display: grid;
  gap: 8px;
}

.challenge-head-top {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 0 11px;
  border-radius: 999px;
  border: 1px solid #86efac;
  background: #dcfce7;
  color: var(--wc-success);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge.closed {
  border-color: #fca5a5;
  background: #fee2e2;
  color: var(--wc-danger);
}

.status-badge.soft {
  border-color: #d1d5db;
  background: #f3f4f6;
  color: #374151;
}

.challenge-head-copy h2 {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.2;
}

.challenge-summary {
  color: #4b5563;
  line-height: 1.55;
}

.challenge-kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.kpi-card {
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  background: #f9fafb;
  padding: 12px;
}

.kpi-label {
  display: block;
  color: var(--wc-muted);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
}

.kpi-card strong {
  display: block;
  margin-top: 8px;
  color: #111827;
  font-size: 1.06rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.challenge-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--wc-border);
  padding-bottom: 10px;
}

.challenge-tab {
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #fff;
  color: #374151;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 12px;
  cursor: pointer;
}

.challenge-tab:hover {
  border-color: #9ca3af;
}

.challenge-tab.active {
  border-color: #f59e0b;
  color: #92400e;
  background: #ffff;
}

.challenge-tab-panel {
  display: none;
}

.challenge-tab-panel.active {
  display: block;
}

.section-card {
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  background: #fff;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.section-subcopy {
  margin-top: 6px;
  color: var(--wc-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.rich-copy {
  color: #374151;
  line-height: 1.65;
}

.rich-copy p + p {
  margin-top: 12px;
}

.rich-copy a,
.section-subcopy a,
.comment-card a,
.proof-card a,
.status-card a {
  color: #b45309;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-word;
}

.requirement-list {
  display: grid;
  gap: 9px;
}

.requirement-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #f9fafb;
  padding: 10px;
}

.requirement-index {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #92400e;
  background: #fde68a;
}

.label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #374151;
}

.input-field {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #fff;
  color: #111827;
  font: inherit;
}

.input-field:focus {
  outline: none;
  border-color: #9ca3af;
  box-shadow: 0 0 0 4px var(--wc-brand-soft);
}

textarea.input-field {
  resize: vertical;
}

.input-field.tall {
  min-height: 112px;
}

.file-input {
  padding: 8px 12px;
}

.file-input::file-selector-button {
  margin-right: 12px;
  border: 1px solid #fcd34d;
  border-radius: 9px;
  background: #fffbeb;
  color: #92400e;
  font: inherit;
  font-weight: 700;
  padding: 8px 12px;
  cursor: pointer;
}

.file-input:disabled::file-selector-button {
  cursor: not-allowed;
  opacity: 0.7;
}

.muted-line {
  color: var(--wc-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.proof-file-state,
.proof-files-block {
  display: grid;
  gap: 8px;
}

.proof-file-caption {
  color: #111827;
  font-size: 0.84rem;
  font-weight: 700;
}

.proof-file-list {
  display: grid;
  gap: 8px;
}

.proof-file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #f9fafb;
  padding: 10px 12px;
  text-decoration: none !important;
}

.proof-file-name {
  min-width: 0;
  color: #111827;
  font-weight: 600;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.proof-file-meta {
  flex: 0 0 auto;
  color: var(--wc-muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.proof-file-empty {
  color: var(--wc-muted);
}

.muted-line a {
  color: #b45309;
  font-weight: 600;
}

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

.primary-btn,
.ghost-btn,
.mini-btn {
  min-height: 40px;
  border-radius: 10px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.primary-btn {
  border: 1px solid #111827;
  background: #1f2937;
  color: #fff;
  padding: 0 14px;
}

.primary-btn:hover {
  background: #111827;
}

.primary-btn:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

.ghost-btn {
  border: 1px solid var(--wc-border);
  background: #fff;
  color: #1f2937;
  padding: 0 14px;
}

.ghost-btn:hover {
  border-color: #9ca3af;
}

.ghost-btn.danger {
  border-color: #fca5a5;
  background: #fef2f2;
  color: var(--wc-danger);
}

.mini-btn {
  min-height: 36px;
  border: 1px solid #fcd34d;
  background: #ffff;
  color: #92400e;
  padding: 0 12px;
}

.status-card {
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #f9fafb;
  padding: 12px;
  color: #374151;
  line-height: 1.55;
}

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

.comment-card,
.proof-card {
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  background: #fff;
  padding: 12px;
  display: grid;
  gap: 9px;
}

.comment-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.comment-author,
.proof-author {
  color: #111827;
  font-weight: 700;
}

.comment-time,
.proof-meta {
  color: var(--wc-muted);
  font-size: 0.82rem;
}

.proof-link a {
  color: #b45309;
  font-weight: 600;
}

.comment-actions,
.proof-review-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-queue-control {
  border: 1px dashed var(--wc-border-strong);
  border-radius: 12px;
  background: #f9fafb;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

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

.admin-proof-modal-overlay {
  z-index: 1500;
}

.admin-proof-modal {
  width: min(980px, 96vw);
}

.admin-proof-modal-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
}

.admin-proof-list {
  max-height: calc(90vh - 180px);
  overflow: auto;
  padding-right: 4px;
}

.admin-proof-list::-webkit-scrollbar {
  width: 8px;
}

.admin-proof-list::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 999px;
}

.challenge-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1400;
  background: rgba(17, 24, 39, 0.5);
  display: grid;
  place-items: center;
  padding: 14px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.challenge-modal-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.challenge-modal {
  width: min(760px, 94vw);
  max-height: 90vh;
  overflow: auto;
  border: 1px solid var(--wc-border);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 22px 56px rgba(17, 24, 39, 0.24);
  padding: 16px;
  display: grid;
  gap: 12px;
}

.challenge-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #fff;
  color: #374151;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.modal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.toggle-card,
.challenge-settings-block {
  border: 1px solid var(--wc-border);
  border-radius: 12px;
  background: #f9fafb;
  padding: 14px;
}

.toggle-inline {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.toggle-inline input {
  margin: 2px 0 0;
  accent-color: #b45309;
}

.toggle-inline span {
  display: grid;
  gap: 4px;
}

.toggle-copy,
.modal-inline-help {
  color: var(--wc-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.challenge-settings-block {
  display: grid;
  gap: 12px;
}

.challenge-badge-preview-box {
  border: 1px dashed var(--wc-border-strong);
  border-radius: 12px;
  background: #f9fafb;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.modal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.requirement-editor {
  display: grid;
  gap: 8px;
}

.requirement-editor-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.remove-row-btn {
  width: 38px;
  height: 38px;
  border: 1px solid #fca5a5;
  border-radius: 10px;
  background: #fef2f2;
  color: var(--wc-danger);
  cursor: pointer;
}

.modal-status {
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: #f9fafb;
  color: #374151;
  font-size: 0.9rem;
  padding: 10px 12px;
}

.modal-status.success {
  border-color: #86efac;
  background: #dcfce7;
  color: #166534;
}

.modal-status.error {
  border-color: #fca5a5;
  background: #fee2e2;
  color: #b91c1c;
}

.toast-zone {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 1600;
  width: min(320px, calc(100vw - 22px));
  display: grid;
  gap: 8px;
}

.toast {
  border: 1px solid var(--wc-border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.98);
  color: #111827;
  box-shadow: 0 14px 26px rgba(17, 24, 39, 0.2);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  transform: translateY(8px);
  opacity: 0;
  transition: transform 160ms ease, opacity 160ms ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  border-color: #86efac;
}

.toast-error {
  border-color: #fca5a5;
}

.toast-icon {
  margin-top: 1px;
  line-height: 1;
}

.hidden {
  display: none !important;
}

@keyframes challengeBadgeMythicPulse {
  0%,
  100% {
    box-shadow:
      0 10px 20px var(--badge-shadow, rgba(220, 38, 38, 0.34)),
      0 0 16px var(--badge-glow, rgba(251, 113, 133, 0.34));
  }
  50% {
    box-shadow:
      0 10px 22px var(--badge-shadow, rgba(220, 38, 38, 0.38)),
      0 0 26px var(--badge-glow, rgba(251, 113, 133, 0.4));
  }
}

@media (max-width: 1100px) {
  .challenges-page .nav-bottom {
    gap: 16px;
  }

  .challenges-page .nav-bottom a {
    padding: 10px 14px;
  }

  .board-layout {
    grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  }

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

@media (max-width: 920px) {
  .weekly-shell {
    margin-top: 24px;
  }

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

  .sprint-hero {
    grid-template-columns: 1fr;
  }

  .board-layout {
    grid-template-columns: 1fr;
  }

  .board-column,
  .detail-column {
    min-height: auto;
  }

  .challenge-list {
    max-height: 430px;
  }
}

@media (max-width: 640px) {
  .weekly-shell {
    padding: 0 4%;
    margin-bottom: 44px;
  }

  .sprint-hero {
    padding: 14px;
  }

  .hero-copy h2 {
    font-size: 1.4rem;
  }

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

  .board-column,
  .detail-column {
    padding: 12px;
  }

  .challenge-kpis {
    grid-template-columns: 1fr;
  }

  .challenge-tab {
    width: calc(50% - 4px);
    text-align: center;
  }

  .challenge-detail-head {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-queue-control {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-queue-actions {
    justify-content: flex-start;
  }

  .admin-proof-modal {
    width: min(760px, 96vw);
  }

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

  .form-actions > button {
    flex: 1 1 140px;
  }

  .proof-file-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .proof-file-meta {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}