:root {
  --viewport-height: 100dvh;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  min-height: 0;
}

.tool-shell {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 0;
  width: min(var(--mn-container), calc(100% - 24px));
  height: var(--viewport-height);
  min-height: 0;
  margin: 0 auto;
  padding: 10px 0 7px;
  overflow: hidden;
}

.tool-header {
  min-height: 64px;
  padding: 7px 13px;
}

.tool-header .mn-brand img {
  width: clamp(98px, 13vw, 126px);
}

.tool-header .mn-title h1 {
  font-size: clamp(1.55rem, 2.8vw, 2.18rem);
}

.tool-intro {
  margin: 7px auto 9px;
}

.tool-intro p {
  font-size: 0.98rem;
  line-height: 1.35;
}

.layout {
  min-width: 0;
  min-height: 0;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 350px);
  align-items: stretch;
  gap: 12px;
  overflow: hidden;
}

.results-card,
.settings-card {
  min-width: 0;
  min-height: 0;
  padding: 14px;
  overflow: hidden;
}

.results-card {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.settings-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.card-head {
  align-items: center;
  margin-bottom: 9px;
}

.card-head h2 {
  font-size: 1.18rem;
}

.pill {
  min-height: 32px;
  padding: 0 11px;
  font-size: 0.92rem;
}

.settings-card .controls-fieldset {
  min-height: 0;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 10px;
}

.names-stack {
  min-height: 0;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 6px;
}

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

.clear-button {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid rgba(217, 78, 69, 0.26);
  border-radius: 999px;
  background: #fff;
  color: var(--mn-red);
  font-size: 0.84rem;
  font-weight: 800;
}

.clear-button:hover,
.clear-button:focus-visible {
  border-color: var(--mn-red);
  outline: none;
  box-shadow: 0 0 0 4px rgba(217, 78, 69, 0.12);
}

#name-input {
  height: 100%;
  min-height: 92px;
  padding: 10px 12px;
  resize: none;
  line-height: 1.38;
}

#name-input::placeholder {
  color: #8fa09d;
  font-size: 0.94rem;
  line-height: 1.38;
  font-weight: 400;
  opacity: 1;
}

.storage-note,
.distribution-help,
.field-error {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.3;
}

.storage-note {
  color: var(--mn-ink-soft);
}

.action-stack {
  gap: 6px;
}

.group-action-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}

#group-count {
  width: 88px;
  min-width: 0;
  min-height: 44px;
  padding: 9px 11px;
}

.group-action-row .btn {
  min-height: 44px;
}

.distribution-help {
  min-height: 18px;
  color: var(--mn-ink-soft);
  font-weight: 800;
  white-space: pre-line;
}

.field-error {
  color: #b42318;
  font-weight: 800;
}

.message {
  min-height: 0;
  margin: 7px 0 0;
  font-size: 0.9rem;
  line-height: 1.3;
}

.message:empty {
  display: none;
}

.message[data-type="success"] {
  color: #117744;
}

.message[data-type="error"] {
  color: #b42318;
}

.groups-empty[hidden],
.pill[hidden],
.view-count[hidden],
.clear-button[hidden],
.field-error[hidden] {
  display: none;
}

.randomizing-status {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 58px;
  margin-bottom: 9px;
  padding: 8px 10px;
  border: 1px solid rgba(15, 89, 97, 0.14);
  border-radius: var(--mn-radius-md);
  background: linear-gradient(180deg, #ffffff, var(--mn-teal-soft));
}

.randomizing-status[hidden] {
  display: none;
}

.randomizing-status strong,
.randomizing-status span {
  display: block;
}

.randomizing-status strong {
  color: var(--mn-teal);
  font-size: 0.96rem;
}

.randomizing-status span {
  margin-top: 2px;
  color: var(--mn-ink-soft);
  font-size: 0.82rem;
  line-height: 1.25;
}

.countdown-ring {
  position: relative;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
}

.countdown-ring svg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-track,
.ring-fill {
  fill: none;
  stroke-width: 5;
}

.ring-track {
  stroke: #d7e5e1;
}

.ring-fill {
  stroke: var(--mn-accent);
  stroke-linecap: round;
  stroke-dasharray: 113.1;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 80ms linear;
}

#countdown-number {
  position: relative;
  z-index: 1;
  color: var(--mn-teal);
  font-size: 0.82rem;
  font-weight: 900;
}

.groups-scroll {
  min-width: 0;
  min-height: 0;
  overflow: hidden auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  border-radius: var(--mn-radius-md);
}

.groups-scroll:focus-visible {
  outline: 3px solid rgba(242, 140, 40, 0.5);
  outline-offset: 2px;
}

.groups-empty {
  display: grid;
  min-height: 100%;
  place-content: center;
  gap: 5px;
  padding: 24px;
  border: 1px dashed rgba(15, 89, 97, 0.24);
  border-radius: var(--mn-radius-md);
  background: rgba(255, 255, 255, 0.48);
  color: var(--mn-ink-soft);
  text-align: center;
}

.groups-empty strong {
  color: var(--mn-teal);
}

.groups-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 10px;
  padding-right: 2px;
}

.groups-grid[data-group-count="2"],
.groups-grid[data-group-count="4"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.groups-grid[data-group-count="3"],
.groups-grid[data-group-count="5"],
.groups-grid[data-group-count="6"],
.groups-grid[data-group-count="7"],
.groups-grid[data-group-count="8"],
.groups-grid[data-group-count="9"],
.groups-grid[data-group-count="10"],
.groups-grid[data-group-count="11"],
.groups-grid[data-group-count="12"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.group-card {
  min-width: 0;
  overflow: hidden;
  border: 1.5px solid var(--group-border, rgba(15, 89, 97, 0.18));
  border-radius: var(--mn-radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.86)),
    var(--group-soft, rgba(15, 89, 97, 0.1));
}

.group-head {
  padding: 9px 11px;
  background: var(--group-color, var(--mn-teal));
  color: #fff;
}

.group-head h3 {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.member-list {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 8px;
  list-style: none;
}

.member-item {
  min-height: 32px;
  padding: 6px 8px;
  border: 1px solid rgba(223, 232, 228, 0.95);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.is-shuffling .group-card {
  animation: card-pop 260ms ease;
}

@keyframes card-pop {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-3px);
  }
}

.mobile-view-switcher {
  display: none;
}

.view-button {
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--mn-line);
  background: #fff;
  color: var(--mn-teal);
  font-weight: 900;
}

.view-button:first-child {
  border-radius: var(--mn-radius-md) 0 0 var(--mn-radius-md);
}

.view-button:last-child {
  border-radius: 0 var(--mn-radius-md) var(--mn-radius-md) 0;
}

.view-button.is-active {
  border-color: var(--mn-teal);
  background: var(--mn-teal);
  color: #fff;
}

.view-button:focus-visible {
  position: relative;
  z-index: 1;
  outline: 3px solid rgba(242, 140, 40, 0.48);
  outline-offset: 2px;
}

.tool-footer {
  min-height: 28px;
  margin: 0;
  padding: 5px 8px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 0.8rem;
  line-height: 1.2;
}

.tool-footer a {
  color: var(--mn-teal);
  font-weight: 800;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 820px) and (min-width: 681px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .groups-grid[data-group-count] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .tool-shell {
    width: min(100% - 16px, var(--mn-container));
    padding-top: 7px;
  }

  .tool-header {
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 54px;
    gap: 9px;
    padding: 6px 9px;
  }

  .tool-header .mn-header-left {
    grid-column: 1;
    grid-row: 1;
  }

  .tool-header .mn-title {
    grid-column: 2;
    grid-row: 1;
    order: initial;
    justify-self: stretch;
    text-align: right;
  }

  .tool-header .mn-brand img {
    width: clamp(76px, 23vw, 92px);
  }

  .tool-header .mn-title h1 {
    font-size: clamp(1.12rem, 6vw, 1.55rem);
    line-height: 1.05;
  }

  .tool-intro {
    margin: 5px auto 7px;
  }

  .tool-intro p {
    font-size: 0.84rem;
    line-height: 1.25;
  }

  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 7px;
  }

  .mobile-view-switcher {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .results-card,
  .settings-card {
    grid-column: 1;
    grid-row: 2;
    padding: 11px;
  }

  .layout[data-active-view="setup"] .results-card,
  .layout[data-active-view="results"] .settings-card {
    display: none;
  }

  .settings-card {
    grid-template-rows: auto minmax(0, 1fr) auto;
  }

  .card-head {
    display: flex;
    margin-bottom: 7px;
  }

  .settings-card .controls-fieldset {
    gap: 7px;
  }

  #name-input {
    min-height: 70px;
  }

  .groups-grid,
  .groups-grid[data-group-count] {
    grid-template-columns: 1fr;
  }

  .randomizing-status {
    min-height: 52px;
    margin-bottom: 7px;
  }

  .tool-footer {
    min-height: 24px;
    padding-top: 3px;
    font-size: 0.7rem;
  }
}

@media (max-height: 520px) and (min-width: 681px) {
  .tool-shell {
    padding-top: 5px;
    padding-bottom: 4px;
  }

  .tool-header {
    min-height: 52px;
    padding-block: 4px;
  }

  .tool-intro {
    margin-block: 4px 5px;
  }

  .results-card,
  .settings-card {
    padding: 10px;
  }

  .card-head {
    margin-bottom: 6px;
  }

  .randomizing-status {
    min-height: 48px;
    margin-bottom: 6px;
    padding-block: 5px;
  }

  .countdown-ring {
    width: 39px;
    height: 39px;
  }

  .tool-footer {
    min-height: 22px;
    padding-top: 2px;
    font-size: 0.7rem;
  }
}

@media (max-width: 340px), (max-height: 440px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: auto;
  }

  .tool-shell {
    height: auto;
    min-height: max(var(--viewport-height), 500px);
    overflow: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .is-shuffling .group-card {
    animation: none;
  }
}