header {
  padding: 2rem 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 100;
  border-bottom: 1px solid var(--border);
  transition: padding 0.35s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.3s ease, border-color 0.3s ease;
}

.theme-toggle {
  width: 2.2rem;
  height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--toggle-fg);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

body.header-scrolled header {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

body.header-scrolled .logo {
  transform: scale(0.93);
}

body.header-scrolled .theme-toggle {
  width: 2.05rem;
  height: 2.05rem;
  border-radius: 0.72rem;
}

@media (prefers-reduced-motion: reduce) {
  .logo,
  header,
  .theme-toggle,
  .theme-toggle-icon,
  .theme-toggle-menu,
  .theme-toggle-menu-line,
  .header-menu,
  .header-menu-search,
  .header-menu-search-input,
  .header-menu-search-button,
  .nav-pills-search,
  .nav-pills-search-input,
  .nav-pills-search-button {
    transition: none;
  }
}

@media (hover: hover) and (pointer: fine) {
  .theme-toggle:hover {
    border-color: var(--accent);
  }
}

.theme-toggle:active {
  transform: scale(0.97);
}

.theme-toggle-icon {
  font-size: 0.95rem;
  line-height: 1;
  transition: opacity 0.22s ease, transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.theme-toggle-menu {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.18rem;
  opacity: 0;
  transform: scale(0.84);
  transition: opacity 0.2s ease, transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.theme-toggle-menu-line {
  display: block;
  width: 0.76rem;
  height: 0.09rem;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.24s ease, opacity 0.2s ease;
}

body.header-scrolled .theme-toggle-icon {
  opacity: 0;
  transform: translateY(-0.18rem) scale(0.88);
}

body.header-scrolled .theme-toggle-menu {
  opacity: 1;
  transform: scale(1);
}

body.header-scrolled.header-menu-open .theme-toggle-menu-line:nth-child(1) {
  transform: translateY(0.27rem) rotate(45deg);
}

body.header-scrolled.header-menu-open .theme-toggle-menu-line:nth-child(2) {
  opacity: 0;
}

body.header-scrolled.header-menu-open .theme-toggle-menu-line:nth-child(3) {
  transform: translateY(-0.27rem) rotate(-45deg);
}

.header-menu {
  position: fixed;
  right: 5vw;
  top: 0;
  width: min(18.25rem, calc(100vw - 10vw));
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 0.65rem 2rem rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.45rem) scale(0.98);
  transition: opacity 0.2s ease, transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 120;
}

.header-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.header-menu-link {
  display: block;
  text-decoration: none;
  color: var(--fg);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 0.72rem;
  padding: 0.56rem 0.72rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
  .header-menu-link:hover {
    background: var(--toggle-bg);
  }
}

.header-menu-link.active {
  color: var(--accent);
  background: var(--toggle-bg);
}

.header-menu-theme-button {
  width: 100%;
  border: 0;
  background: none;
  text-align: left;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  cursor: pointer;
  color: inherit;
}

.header-menu-theme-value {
  color: var(--fg);
  font-size: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  text-transform: none;
  font-weight: 500;
}

.header-challenges-menu-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  color: inherit;
}

.header-challenges-count {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.2;
  font-weight: 500;
}

.header-challenges-menu-button[hidden] {
  display: none;
}

.header-menu-search-row {
  margin-top: 0.08rem;
}

.header-menu-search {
  display: flex;
  align-items: center;
  gap: 0.42rem;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 0.78rem;
  padding: 0.2rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 100%),
    var(--toggle-bg);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.header-menu-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.header-menu-search-input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  border: 0;
  border-radius: 0.58rem;
  background: transparent;
  color: var(--fg);
  padding: 0.42rem 0.52rem;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.01em;
  line-height: 1.1;
}

.header-menu-search-input::placeholder {
  color: var(--muted);
  opacity: 0.86;
}

.header-menu-search-input:focus-visible {
  outline: none;
}

.header-menu-search-button {
  flex: 0 0 auto;
  border: 1px solid var(--accent);
  border-radius: 0.58rem;
  background: var(--header-bg);
  color: var(--fg);
  padding: 0.42rem 0.62rem;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.1;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.header-menu-search-button:focus-visible {
  transform: translateY(-1px);
  background: var(--surface);
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .header-menu-search-button:hover {
    transform: translateY(-1px);
    background: var(--surface);
    border-color: var(--accent);
  }
}

.nav-pills-search-item {
  display: inline-flex;
  align-items: center;
}

.nav-pills-search {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.18rem 0.2rem 0.18rem 0.42rem;
  background: var(--surface);
  min-width: min(58vw, 17rem);
}

.nav-pills-search-input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 0.78rem;
  line-height: 1.1;
  letter-spacing: 0.01em;
  padding: 0.24rem 0.1rem;
}

.nav-pills-search-input::placeholder {
  color: var(--muted);
  opacity: 0.86;
}

.nav-pills-search-input:focus-visible {
  outline: none;
}

.nav-pills-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.nav-pills-search-button {
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--header-bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 0.35rem 0.58rem;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.nav-pills-search-button:focus-visible {
  transform: translateY(-1px);
  background: var(--toggle-bg);
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .nav-pills-search-button:hover {
    transform: translateY(-1px);
    background: var(--toggle-bg);
    border-color: var(--accent);
  }
}

body.header-scrolled.header-menu-open .header-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.global-challenges-modal {
  position: fixed;
  inset: 0;
  z-index: 180;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(11, 10, 16, 0.62);
}

.global-challenges-modal[hidden] {
  display: none;
}

.global-challenges-panel {
  width: min(92vw, 430px);
  border: 1px solid var(--border);
  border-radius: 0.86rem;
  background: var(--surface);
  box-shadow: 0 0.72rem 2.2rem rgba(0, 0, 0, 0.26);
  padding: 0.8rem;
  display: grid;
  gap: 0.68rem;
}

.global-challenges-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.global-challenges-title {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.2;
  color: var(--fg);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.global-challenges-close {
  border: 1px solid var(--border);
  background: var(--toggle-bg);
  color: var(--fg);
  border-radius: 0.52rem;
  padding: 0.24rem 0.48rem;
  cursor: pointer;
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.global-challenges-close:focus-visible {
  border-color: var(--accent);
  background: var(--surface);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .global-challenges-close:hover {
    border-color: var(--accent);
    background: var(--surface);
  }
}

.global-challenges-note {
  margin: 0;
  font-size: 0.73rem;
  line-height: 1.35;
  color: var(--muted);
}

.global-challenges-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
  max-height: min(56vh, 400px);
  overflow-y: auto;
}

.global-challenges-item {
  border: 1px solid var(--border);
  border-radius: 0.72rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 100%),
    var(--toggle-bg);
  padding: 0.68rem;
  display: grid;
  gap: 0.42rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
  .global-challenges-item:hover {
    border-color: var(--accent);
  }
}

.global-challenges-item-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.24rem 0.58rem;
}

.global-challenges-item-title {
  color: var(--fg);
  font-size: 0.8rem;
  line-height: 1.24;
  letter-spacing: -0.01em;
  font-weight: 600;
  min-width: 0;
}

.global-challenges-score-line {
  display: flex;
  align-items: baseline;
  gap: 0.28rem;
}

.global-challenges-score-line + .global-challenges-score-line {
  margin-top: 0.12rem;
}

.global-challenges-score-label {
  color: var(--fg);
  font-weight: 600;
  flex: 0 0 auto;
}

.global-challenges-score-value {
  color: var(--fg);
  font-weight: 500;
}

.global-challenges-item-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.73rem;
  line-height: 1.38;
}

.global-challenges-item-game {
  color: var(--muted);
  font-size: 0.69rem;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.global-challenges-item-game strong {
  color: var(--fg);
  font-weight: 600;
}

.global-challenges-item-time {
  margin-top: 0.02rem;
}

.global-challenges-item-tiebreak {
  border: 1px dashed var(--border);
  border-radius: 0.52rem;
  background: rgba(127, 127, 127, 0.06);
  padding: 0.34rem 0.44rem;
  display: grid;
  gap: 0.14rem;
}

.global-challenges-item-tiebreak-label {
  color: var(--fg);
}

.global-challenges-item-tiebreak-times {
  line-height: 1.44;
}

.global-challenges-item-tiebreak-times strong {
  color: var(--fg);
  font-weight: 600;
}

.global-challenges-item-status {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.08rem 0.46rem;
  font-size: 0.65rem;
  line-height: 1.3;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  white-space: nowrap;
  margin-top: 0.02rem;
  background: var(--surface);
}

.global-challenges-item-status.is-pending {
  color: var(--muted);
}

.global-challenges-item-status.is-completed {
  border-color: rgba(58, 181, 94, 0.5);
  color: #167835;
  background: rgba(58, 181, 94, 0.1);
}

.global-challenges-item-status.is-lost {
  border-color: rgba(184, 88, 88, 0.5);
  color: #8b3636;
  background: rgba(184, 88, 88, 0.1);
}

.global-challenges-item-status.is-expired {
  border-color: rgba(184, 88, 88, 0.5);
  color: #8b3636;
  background: rgba(184, 88, 88, 0.1);
}

@media (max-width: 420px) {
  .global-challenges-item {
    padding: 0.58rem;
    gap: 0.36rem;
  }

  .global-challenges-item-title {
    font-size: 0.78rem;
  }

  .global-challenges-item-status {
    padding: 0.07rem 0.42rem;
  }

  .global-challenges-item-game {
    font-size: 0.67rem;
  }
}