:root {
  --bg: #f4fbff;
  --surface: #ffffff;
  --surface-muted: #f7fbfc;
  --border: #d8e2e8;
  --ink: #0f1f2e;
  --ink-soft: #486276;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --available: #16a34a;
  --available-soft: #dcfce7;
  --maybe: #f59e0b;
  --maybe-soft: #fef3c7;
  --danger: #dc2626;
  --danger-soft: #fff2f2;
  --shadow: 0 14px 28px rgba(15, 31, 46, 0.08);
  --theme-transition-ms: 220ms;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0d1722;
  --surface: #122130;
  --surface-muted: #162838;
  --border: #2a3f51;
  --ink: #e4eef7;
  --ink-soft: #9bb2c4;
  --accent: #19a7a0;
  --accent-strong: #27c3ba;
  --available: #22c55e;
  --available-soft: #103122;
  --maybe: #f59e0b;
  --maybe-soft: #392d10;
  --danger: #f87171;
  --danger-soft: #3a1f25;
  --shadow: 0 16px 30px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  background: linear-gradient(160deg, #f4fbff, #eef7f1);
}

body {
  padding: 1rem 0.8rem 1.1rem;
}

:root.theme-ready body,
:root.theme-ready .card,
:root.theme-ready .week-card,
:root.theme-ready .results-card,
:root.theme-ready .review-checklist li,
:root.theme-ready .participant-list li,
:root.theme-ready .lb-row,
:root.theme-ready .score-chip,
:root.theme-ready .count-card,
:root.theme-ready .results-locked,
:root.theme-ready .week-detail,
:root.theme-ready .badge,
:root.theme-ready .theme-picker,
:root.theme-ready .theme-picker select,
:root.theme-ready .field input,
:root.theme-ready .field select,
:root.theme-ready .rank-select,
:root.theme-ready .btn,
:root.theme-ready .stepper-btn,
:root.theme-ready .day-strip span,
:root.theme-ready .week-card .flow-point {
  transition:
    background-color var(--theme-transition-ms) ease,
    color var(--theme-transition-ms) ease,
    border-color var(--theme-transition-ms) ease,
    box-shadow var(--theme-transition-ms) ease;
}

.app-shell {
  width: min(1040px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 0.9rem;
}

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

.hero {
  padding: 1rem;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.hero h1 {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.3rem, 2.4vw, 2rem);
}

.hero p {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f7fafc;
  color: #334d62;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0 0.8rem;
  white-space: nowrap;
}

.badge.online {
  background: #ecfdf5;
  border-color: #bbf7d0;
  color: #166534;
}

.badge.degraded {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.badge.checking {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

.badge.required {
  background: #f3f4f6;
  border-color: #d1d5db;
  color: #334155;
}

.hero-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.theme-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #f7fafc;
  padding: 0.15rem 0.38rem;
}

.theme-picker span {
  font-size: 0.72rem;
  font-weight: 700;
  color: #486276;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.theme-picker select {
  border: 0;
  background: transparent;
  color: #1f3f58;
  font: inherit;
  font-size: 0.79rem;
  font-weight: 700;
  padding: 0.2rem 0.25rem;
}

.theme-picker select:focus-visible {
  outline: 2px solid rgba(15, 118, 110, 0.3);
  outline-offset: 2px;
}

.wizard {
  padding: 0.9rem;
  display: grid;
  gap: 1rem;
}

.stepper {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
}

.stepper li {
  margin: 0;
  padding: 0;
}

.stepper-btn {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #f8fbfd;
  color: #5a7184;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
  padding: 0.35rem 0.4rem;
  display: grid;
  gap: 0.2rem;
  text-align: center;
  cursor: pointer;
}

.stepper-btn span:first-child {
  width: 1.5rem;
  height: 1.5rem;
  margin: 0 auto;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: #e7eff5;
  color: #35536a;
  font-weight: 800;
}

.stepper-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.stepper li.active .stepper-btn {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: #eef8f7;
  color: #184b46;
}

.stepper li.active .stepper-btn span:first-child {
  background: var(--accent);
  color: #fff;
}

.stepper li.complete .stepper-btn {
  background: #ecfdf5;
  border-color: #bbf7d0;
  color: #166534;
}

.stepper li.complete .stepper-btn span:first-child {
  background: #16a34a;
  color: #fff;
}

.step-panel {
  width: min(920px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 0.8rem;
}

.step-panel h2 {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.step-copy {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field span {
  font-size: 0.78rem;
  color: #4b657a;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.field input,
.field select,
.rank-select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 0.68rem 0.72rem;
}

.field input:focus-visible,
.field select:focus-visible,
.rank-select:focus-visible,
.btn:focus-visible,
.stepper-btn:focus-visible,
.week-card:focus-visible,
.heat-cell:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.28);
  outline-offset: 2px;
}

.inline-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.inline-actions.wrap {
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  min-height: 44px;
  padding: 0.62rem 0.92rem;
  background: #f8fbfd;
  color: #2f4a61;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-strong);
}

.btn.danger {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: #fecaca;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.hint {
  font-size: 0.84rem;
  color: #4f6980;
  font-weight: 600;
}

.count-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.count-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
  padding: 0.58rem;
  display: grid;
  gap: 0.2rem;
}

.count-card span {
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.73rem;
  color: #4f6980;
  font-weight: 700;
}

.count-card strong {
  font-family: "Sora", sans-serif;
  font-size: 1.05rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  color: #4e677d;
  font-size: 0.78rem;
  font-weight: 700;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
}

.dot {
  width: 0.58rem;
  height: 0.58rem;
  border-radius: 50%;
}

.dot.neutral {
  background: #9ca3af;
}

.dot.available {
  background: var(--available);
}

.dot.maybe {
  background: var(--maybe);
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.week-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  min-height: 132px;
  min-width: 0;
  text-align: left;
  padding: 0.52rem;
  display: grid;
  gap: 0.32rem;
  cursor: pointer;
}

.week-card .week-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  color: #4f6980;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.week-card .range {
  font-weight: 700;
  font-size: 0.84rem;
  color: #18364d;
  line-height: 1.2;
}

.week-card .window-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.3rem;
}

.week-card .flow-point {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f8fbfd;
  padding: 0.2rem 0.42rem;
  font-size: 0.7rem;
  font-weight: 800;
  color: #274b63;
}

.week-card .flow-point.start {
  background: #e7f4ff;
  border-color: #bfdff7;
  color: #0c4a6e;
}

.week-card .flow-point.end {
  background: #fff3dc;
  border-color: #fddba5;
  color: #92400e;
}

.week-card .flow-arrow {
  color: #4f6980;
  font-weight: 800;
  font-size: 0.84rem;
}

.week-card .weekday-range {
  color: #4f6980;
  font-size: 0.74rem;
  font-weight: 700;
}

.day-strip {
  display: grid;
  grid-template-columns: repeat(var(--day-columns, var(--day-count, 7)), minmax(0, 1fr));
  gap: 0.26rem;
  width: 100%;
  min-width: 0;
}

.day-strip span {
  border: 1px solid #d7e1e8;
  border-radius: 10px;
  background: #f8fbfd;
  color: #4f6980;
  font-size: clamp(0.66rem, 1.7vw, 0.74rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  text-align: center;
  min-height: 1.78rem;
  min-width: 0;
  padding: 0.3rem 0.1rem;
  white-space: nowrap;
  display: grid;
  place-items: center;
}

.day-strip span.start {
  background: #e7f4ff;
  border-color: #bfdff7;
  color: #0c4a6e;
}

.day-strip span.end {
  background: #fff3dc;
  border-color: #fddba5;
  color: #92400e;
}

.status-pill,
.rank-pill {
  justify-self: start;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f2f6f9;
  color: #3f5d75;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.2rem 0.46rem;
}

.rank-pill {
  background: #0f766e;
  border-color: #0f766e;
  color: #fff;
}

.rank-pill[hidden] {
  display: none;
}

.week-card[data-status="available"] {
  border-color: #86efac;
  background: linear-gradient(165deg, #fff, var(--available-soft));
}

.week-card[data-status="available"] .status-pill {
  background: #166534;
  border-color: #166534;
  color: #fff;
}

.week-card[data-status="maybe"] {
  border-color: #fcd34d;
  background: linear-gradient(165deg, #fff, var(--maybe-soft));
}

.week-card[data-status="maybe"] .status-pill {
  background: #92400e;
  border-color: #92400e;
  color: #fff;
}

.rank-rows {
  display: grid;
  gap: 0.55rem;
}

.rank-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.52rem;
}

.rank-chip {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: #ecf7f6;
  color: #145f58;
  border: 1px solid #b9e4df;
  display: inline-grid;
  place-items: center;
  font-family: "Sora", sans-serif;
  font-weight: 700;
}

.review-checklist {
  border: 1px solid var(--border);
  background: var(--surface-muted);
  border-radius: var(--radius-md);
  padding: 0.72rem;
}

.review-checklist h3 {
  margin: 0 0 0.48rem;
  font-size: 0.95rem;
}

.review-checklist ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.34rem;
}

.review-checklist li {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 0.45rem 0.55rem;
  font-size: 0.84rem;
  color: #2e4b62;
}

.review-checklist li.ok {
  border-color: #bbf7d0;
  background: #ecfdf5;
  color: #166534;
}

.review-checklist li.warn {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}

.results-locked {
  border: 1px dashed #c7d3dc;
  border-radius: var(--radius-md);
  background: #f8fbfd;
  color: #5b7387;
  padding: 0.72rem;
  font-size: 0.86rem;
}

.results {
  display: grid;
}

.results-grid {
  display: grid;
  gap: 0.6rem;
}

.results-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 0.7rem;
  display: grid;
  gap: 0.52rem;
}

.results-card h3 {
  margin: 0;
  font-size: 0.95rem;
}

.score-chips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
}

.score-chip {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-muted);
  padding: 0.42rem;
  display: grid;
  gap: 0.16rem;
}

.score-chip span {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.7rem;
  color: #4f6980;
  font-weight: 700;
}

.score-chip strong {
  font-family: "Sora", sans-serif;
  font-size: 0.98rem;
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.36rem;
}

.heat-cell {
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 40px;
  background: #f2f8fb;
  color: #25506d;
  font-size: 0.73rem;
  font-weight: 800;
  cursor: pointer;
}

.heat-cell.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.participant-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.participant-list li {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 0.45rem;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  gap: 0.45rem;
}

.participant-list li.done {
  border-color: #bbf7d0;
  background: #ecfdf5;
}

.leaderboard {
  display: grid;
  gap: 0.38rem;
}

.lb-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.44rem;
  background: #fff;
  display: grid;
  gap: 0.24rem;
}

.lb-top {
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
}

.lb-bar {
  height: 7px;
  border-radius: 999px;
  background: #ecf2f7;
  overflow: hidden;
}

.lb-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #34d399, #0f766e);
}

.week-detail {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-muted);
  padding: 0.5rem;
  font-size: 0.82rem;
  color: #2b4b62;
  min-height: 78px;
}

.week-detail ul {
  margin: 0.3rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.2rem;
}

.toast-area {
  position: fixed;
  right: 0.75rem;
  bottom: 0.75rem;
  width: min(320px, calc(100vw - 1.5rem));
  display: grid;
  gap: 0.38rem;
  z-index: 20;
}

.toast {
  border-radius: 12px;
  padding: 0.56rem 0.7rem;
  color: #fff;
  background: #163246;
  font-size: 0.81rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.toast.good {
  background: #166534;
}

.toast.warn {
  background: #92400e;
}

:root[data-theme="dark"] body {
  background: linear-gradient(160deg, #0d1722, #102030);
}

:root[data-theme="dark"] .card,
:root[data-theme="dark"] .week-card,
:root[data-theme="dark"] .results-card,
:root[data-theme="dark"] .review-checklist li,
:root[data-theme="dark"] .participant-list li,
:root[data-theme="dark"] .lb-row,
:root[data-theme="dark"] .score-chip {
  background: var(--surface);
  border-color: var(--border);
  color: var(--ink);
}

:root[data-theme="dark"] .hero p,
:root[data-theme="dark"] .step-copy,
:root[data-theme="dark"] .hint,
:root[data-theme="dark"] .legend,
:root[data-theme="dark"] .week-card .weekday-range {
  color: var(--ink-soft);
}

:root[data-theme="dark"] .stepper-btn {
  background: #1a2b3b;
  border-color: #2a3f51;
  color: #b6c7d5;
}

:root[data-theme="dark"] .stepper-btn span:first-child {
  background: #22394c;
  color: #d3e1ec;
}

:root[data-theme="dark"] .badge.required {
  background: #1f2f3f;
  border-color: #34506a;
  color: #d6e7f5;
}

:root[data-theme="dark"] .theme-picker {
  background: #1a2b3b;
}

:root[data-theme="dark"] .theme-picker span {
  color: #9fb4c5;
}

:root[data-theme="dark"] .theme-picker select {
  color: #dbe8f2;
}

:root[data-theme="dark"] .field input,
:root[data-theme="dark"] .field select,
:root[data-theme="dark"] .rank-select {
  background: #1a2b3b;
  border-color: #34506a;
  color: #e4eef7;
}

:root[data-theme="dark"] .btn {
  background: #1a2b3b;
  border-color: #34506a;
  color: #d7e6f2;
}

:root[data-theme="dark"] .btn.danger {
  background: #3a1f25;
  border-color: #7b303c;
}

:root[data-theme="dark"] .count-card,
:root[data-theme="dark"] .results-locked,
:root[data-theme="dark"] .week-detail {
  background: var(--surface-muted);
  border-color: var(--border);
  color: var(--ink-soft);
}

:root[data-theme="dark"] .week-card .range,
:root[data-theme="dark"] .week-card .week-title,
:root[data-theme="dark"] .score-chip span,
:root[data-theme="dark"] .score-chip strong {
  color: var(--ink);
}

:root[data-theme="dark"] .week-card .flow-point {
  background: #1b2f40;
  border-color: #34506a;
  color: #d7e6f2;
}

:root[data-theme="dark"] .week-card .flow-point.start,
:root[data-theme="dark"] .day-strip span.start {
  background: #1a3f57;
  border-color: #276285;
  color: #d3ecff;
}

:root[data-theme="dark"] .week-card .flow-point.end,
:root[data-theme="dark"] .day-strip span.end {
  background: #453112;
  border-color: #6b4a1b;
  color: #f7dfb2;
}

:root[data-theme="dark"] .day-strip span {
  background: #1a2b3b;
  border-color: #34506a;
  color: #a8bece;
}

@media (min-width: 640px) {
  body {
    padding: 1rem;
  }

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

  .week-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .heatmap {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .week-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

  .wizard {
    padding: 1rem;
  }

}

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