:root {
  --sky-top: #7ec8e3;
  --sky-mid: #c5e8f5;
  --sea: #0a7a86;
  --sea-deep: #06555e;
  --sea-bright: #12a0b0;
  --sun: #ffc857;
  --sun-hot: #ff9f43;
  --foam: #f7fcfd;
  --sand: #e8d9b8;
  --sand-deep: #d4c19a;
  --ink: #12343c;
  --muted: #4f6d74;
  --line: #9fd0d8;
  --accent: #0a7a86;
  --accent-soft: #c5eef3;
  --done: #2f8a72;
  --danger: #b33d3d;
  --surface: rgba(255, 252, 247, 0.78);
  --radius: 14px;
  --shadow: 0 10px 28px rgba(6, 85, 94, 0.08);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 54rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 120% 80% at 85% 8%, rgba(255, 200, 87, 0.35) 0%, transparent 50%),
    radial-gradient(ellipse 100% 60% at 15% 0%, rgba(255, 255, 255, 0.4) 0%, transparent 45%),
    linear-gradient(
      180deg,
      var(--sky-top) 0%,
      var(--sky-mid) 22%,
      #b8dfe9 48%,
      #a8d5e0 68%,
      #c5ddd0 82%,
      var(--sand) 100%
    );
  background-attachment: fixed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* —— soft ambient glow —— */
.scape {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.scape-glow {
  position: absolute;
  top: -5%;
  right: -8%;
  width: 70vw;
  height: 50vh;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 200, 87, 0.22) 0%,
    rgba(255, 159, 67, 0.08) 45%,
    transparent 75%
  );
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-header,
.status-bars,
.hidden-bar,
.checklist {
  position: relative;
  z-index: 1;
}

.status-bars {
  display: grid;
  gap: 0.25rem;
  max-width: var(--max);
  margin: 0 auto;
}

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.25rem 0.5rem;
  padding-top: calc(0.85rem + env(safe-area-inset-top, 0px));
  padding-left: calc(1.25rem + env(safe-area-inset-left, 0px));
  padding-right: calc(1.25rem + env(safe-area-inset-right, 0px));
}

.header-row {
  display: flex;
  align-items: center;
  gap: 0.5rem 0.75rem;
  flex-wrap: nowrap;
}

h1 {
  margin: 0;
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3.5vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--sea-deep);
}

.progress {
  margin: 0;
  color: var(--sea-deep);
  font-size: 0.82rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

.progress-bar {
  margin: 0.55rem 0 0;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.55);
  overflow: hidden;
}

.progress-bar > span {
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sun-hot), var(--sun), var(--sea-bright));
  transition: width 0.45s var(--ease);
}

.actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.3rem;
  flex-shrink: 0;
}

.btn-short {
  display: none;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.28rem 0.55rem;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background 0.2s var(--ease),
    border-color 0.2s var(--ease),
    color 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.btn:hover {
  background: #fff;
  border-color: #fff;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.btn-danger:hover {
  background: #fff5f5;
  border-color: color-mix(in srgb, var(--danger) 25%, white);
}

.hidden-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 1.25rem 0;
}

.hidden-bar[hidden] {
  display: none;
}

.hidden-label {
  color: var(--sea-deep);
  font-size: 0.72rem;
  font-weight: 600;
  margin-right: 0.1rem;
}

.hidden-chip {
  appearance: none;
  border: 1px dashed color-mix(in srgb, var(--sea) 50%, white);
  background: rgba(255, 255, 255, 0.5);
  color: var(--sea-deep);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.22rem 0.55rem;
  border-radius: 7px;
  cursor: pointer;
  transition:
    background 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.hidden-chip:hover {
  border-style: solid;
  border-color: var(--sea);
  background: #fff;
}

.hidden-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hidden-chip--irrelevant {
  border-style: solid;
  border-color: color-mix(in srgb, var(--muted) 45%, white);
  color: var(--muted);
  opacity: 0.9;
}

.hidden-chip--irrelevant:hover {
  border-color: var(--muted);
  color: var(--sea-deep);
  opacity: 1;
}

.group-actions {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-shrink: 0;
}

.group-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.btn-hide-group {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  padding: 0;
  border-radius: 7px;
  cursor: pointer;
  opacity: 0.55;
  transition:
    opacity 0.2s var(--ease),
    color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.btn-hide-group svg {
  display: block;
}

.group:hover .btn-hide-group {
  opacity: 1;
}

.btn-hide-group:hover {
  color: var(--sea);
  background: color-mix(in srgb, var(--accent-soft) 55%, transparent);
}

.btn-hide-group:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-irrelevant:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
}

.checklist {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem 2rem;
  display: grid;
  gap: 1rem;
}

.site-footer {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem calc(5.5rem + env(safe-area-inset-bottom, 0px));
  text-align: center;
}

.site-footer a {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  text-decoration: none;
  opacity: 0.75;
}

.site-footer-sep {
  margin: 0 0.45rem;
  color: var(--muted);
  font-size: 0.78rem;
  opacity: 0.45;
}

.site-footer a:hover {
  color: var(--sea);
  opacity: 1;
}

.group {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  padding: 1.05rem 1.15rem 1.1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  animation: rise-in 0.5s var(--ease) both;
  animation-delay: calc(var(--i, 0) * 40ms);
  position: relative;
  overflow: hidden;
}

.group--static {
  animation: none;
}

.group-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}

.group-header h2 {
  margin: 0;
  padding-left: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--sea-deep);
}

.group-count {
  appearance: none;
  border: none;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  padding: 0.18rem 0.5rem;
  border-radius: 7px;
  background: linear-gradient(135deg, #fff3d0, var(--accent-soft));
  color: var(--sea-deep);
  cursor: pointer;
  transition:
    filter 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.group-count:hover {
  filter: brightness(0.97);
}

.group-count:active {
  transform: scale(0.97);
}

.group-count:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.items {
  list-style: none;
  margin: 0;
  padding: 0 0 0 0.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14.5rem, 1fr));
  gap: 0.1rem 1rem;
}

.items.items--all-done {
  display: flex;
  justify-content: center;
  grid-template-columns: none;
}

.group-all-done-item {
  list-style: none;
  width: 100%;
}

.group-all-done {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0.5rem 0.35rem;
  text-align: center;
}

.group-all-done-msg {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
}

.item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.38rem 0.3rem;
  margin: 0 -0.3rem;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background 0.18s var(--ease);
}

.item:hover {
  background: color-mix(in srgb, var(--accent-soft) 60%, transparent);
}

.item input {
  appearance: none;
  margin: 0.22rem 0 0;
  width: 1.08rem;
  height: 1.08rem;
  border: 1.5px solid color-mix(in srgb, var(--sea) 50%, var(--line));
  border-radius: 5px;
  background: #fff;
  flex-shrink: 0;
  cursor: pointer;
  transition:
    background 0.18s var(--ease),
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}

.item input:checked {
  background: var(--sea) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 6.2 4.8 8.5 9.5 3.5' fill='none' stroke='%23f7fcfd' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 0.7rem no-repeat;
  border-color: var(--sea);
  transform: scale(1.06);
}

.item input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.item span {
  font-size: 0.92rem;
  transition:
    color 0.2s var(--ease),
    opacity 0.2s var(--ease);
}

.item.is-checked span {
  color: var(--done);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--done) 50%, transparent);
  opacity: 0.65;
}

.fab-top {
  position: fixed;
  right: calc(1.1rem + env(safe-area-inset-right, 0px));
  bottom: calc(1.1rem + env(safe-area-inset-bottom, 0px));
  z-index: 20;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 14px;
  background: color-mix(in srgb, var(--sea) 92%, white);
  color: var(--foam);
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(6, 85, 94, 0.22);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px) scale(0.94);
  transition:
    opacity 0.22s var(--ease),
    transform 0.22s var(--ease),
    visibility 0.22s var(--ease),
    background 0.2s var(--ease);
}

.fab-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.fab-top:hover {
  background: var(--sea-deep);
}

.fab-top:focus-visible {
  outline: 2px solid var(--sun);
  outline-offset: 3px;
}

/* —— confirm modal —— */
body.modal-open {
  overflow: hidden;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  padding-bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--sea-deep) 42%, transparent);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(100%, 22.5rem);
  padding: 1.35rem 1.35rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.75);
  background: rgba(255, 252, 247, 0.94);
  box-shadow: 0 18px 48px rgba(6, 85, 94, 0.22);
  backdrop-filter: blur(12px);
  animation: rise-in 0.28s var(--ease) both;
}

.modal-title {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--sea-deep);
  line-height: 1.25;
}

.modal-body {
  margin: 0 0 1.15rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
}

.modal-actions .btn {
  font-size: 0.82rem;
  padding: 0.45rem 0.85rem;
}

.modal-actions .btn-danger {
  background: color-mix(in srgb, var(--danger) 12%, white);
  border-color: color-mix(in srgb, var(--danger) 28%, white);
}

.modal-actions .btn-danger:hover {
  background: #fff5f5;
  border-color: color-mix(in srgb, var(--danger) 40%, white);
}

@media (max-width: 640px) {
  .site-header {
    padding: 0.65rem 1rem 0.4rem;
    padding-top: calc(0.65rem + env(safe-area-inset-top, 0px));
    padding-left: calc(1rem + env(safe-area-inset-left, 0px));
    padding-right: calc(1rem + env(safe-area-inset-right, 0px));
  }

  .header-row {
    gap: 0.35rem 0.5rem;
    flex-wrap: wrap;
  }

  h1 {
    font-size: 1.15rem;
    flex: 1 1 auto;
  }

  .progress {
    font-size: 0.78rem;
  }

  .actions {
    flex: 1 1 100%;
    justify-content: flex-start;
  }

  .btn-full {
    display: inline;
  }

  .btn-short {
    display: none;
  }

  .btn {
    padding: 0.26rem 0.45rem;
    font-size: 0.72rem;
  }

  .hidden-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.35rem 1rem 0.15rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--sea) 35%, transparent) transparent;
  }

  .hidden-bar::-webkit-scrollbar {
    height: 3px;
  }

  .hidden-bar::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--sea) 35%, transparent);
    border-radius: 2px;
  }

  .hidden-label,
  .hidden-chip {
    flex-shrink: 0;
  }

  .checklist {
    padding-top: 0.5rem;
  }

  .group-header {
    flex-wrap: wrap;
    gap: 0.4rem 0.75rem;
  }

  .group-meta {
    width: 100%;
    justify-content: space-between;
  }

  .group-actions {
    gap: 0.2rem;
  }
}

@media (max-width: 520px) {
  .items {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .group,
  .status-bars,
  .hidden-bar,
  .progress-bar > span,
  .btn,
  .item,
  .item input,
  .item span,
  .fab-top,
  .modal-card {
    animation: none !important;
    transition: none !important;
  }

  .fab-top {
    transform: none;
  }
}