:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #fdfefe;
  --surface-strong: #ffffff;
  --ink: #17201c;
  --muted: #68746f;
  --line: #dce5e1;
  --accent: #0f9f7a;
  --accent-dark: #08765a;
  --accent-soft: #e4f8f0;
  --warn: #c64730;
  --warn-soft: #fff0eb;
  --blue: #315ea8;
  --blue-soft: #e9f0ff;
  --purple: #7251b5;
  --purple-soft: #f0ebff;
  --amber: #a05f00;
  --amber-soft: #fff5df;
  --shadow: 0 24px 70px rgba(35, 49, 43, 0.12);
  --shadow-soft: 0 10px 30px rgba(35, 49, 43, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(15, 159, 122, 0.16), transparent 30rem),
    radial-gradient(circle at bottom right, rgba(49, 94, 168, 0.12), transparent 34rem),
    var(--bg);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease, border-color 150ms ease;
}

button:active {
  transform: translateY(1px);
}

.app-shell {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 20px;
}

.login-card {
  display: grid;
  width: min(420px, 100%);
  gap: 18px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  padding: 28px;
  backdrop-filter: blur(18px);
}

.login-card h1 {
  font-size: clamp(2.2rem, 8vw, 3.5rem);
  margin-bottom: 4px;
}

.login-error {
  margin: -4px 0 0;
  color: var(--warn);
  font-size: 0.9rem;
  font-weight: 800;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.66);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px;
  backdrop-filter: blur(18px);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2rem, 4.8vw, 3.7rem);
  line-height: 1;
}

h2 {
  font-size: 1.05rem;
}

.summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.summary span,
.list-heading span,
.item-meta span,
.item-quantity {
  border: 1px solid var(--section-chip-line, rgba(15, 159, 122, 0.16));
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--muted);
  padding: 6px 10px;
  font-size: 0.84rem;
  font-weight: 700;
  white-space: nowrap;
}

.composer,
.toolbar,
.weekly-panel,
.list-panel {
  border: 1px solid var(--section-line, rgba(255, 255, 255, 0.76));
  border-radius: 24px;
  background:
    linear-gradient(135deg, var(--section-tint, rgba(255, 255, 255, 0.72)), rgba(255, 255, 255, 0.76) 44%),
    rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  position: relative;
}

.composer::before,
.toolbar::before,
.weekly-panel::before,
.list-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  border-radius: 24px 0 0 24px;
  background: var(--section-accent, var(--accent));
}

.composer .eyebrow,
.toolbar label,
.weekly-panel .eyebrow,
.list-panel .eyebrow {
  color: var(--section-accent, var(--accent-dark));
}

.composer {
  --section-accent: var(--accent);
  --section-line: rgba(15, 159, 122, 0.22);
  --section-chip-line: rgba(15, 159, 122, 0.18);
  --section-tint: rgba(228, 248, 240, 0.76);
  padding: 20px;
}

.toolbar {
  --section-accent: var(--blue);
  --section-line: rgba(49, 94, 168, 0.20);
  --section-chip-line: rgba(49, 94, 168, 0.18);
  --section-tint: rgba(233, 240, 255, 0.72);
}

.weekly-panel {
  --section-accent: var(--purple);
  --section-line: rgba(114, 81, 181, 0.22);
  --section-chip-line: rgba(114, 81, 181, 0.18);
  --section-tint: rgba(240, 235, 255, 0.78);
}

.list-panel {
  --section-accent: var(--amber);
  --section-line: rgba(160, 95, 0, 0.18);
  --section-chip-line: rgba(160, 95, 0, 0.16);
  --section-tint: rgba(255, 245, 223, 0.64);
}

.collapsible-panel {
  overflow: hidden;
}

.collapsible-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  list-style: none;
  cursor: pointer;
}

.collapsible-panel summary::-webkit-details-marker {
  display: none;
}

.collapsible-panel summary > span:first-child {
  display: grid;
  gap: 2px;
}

.collapsible-panel summary strong {
  font-size: 1.05rem;
}

.collapsible-panel summary strong,
.list-heading h2 {
  color: var(--section-accent, var(--ink));
}

.collapsible-panel summary .eyebrow {
  margin: 0;
}

.panel-chevron {
  width: 12px;
  height: 12px;
  border: solid var(--section-accent, var(--muted));
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  transition: transform 160ms ease;
}

.collapsible-panel[open] .panel-chevron {
  transform: rotate(225deg);
}

.item-form {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) minmax(120px, 0.7fr) minmax(140px, 0.8fr) minmax(150px, 0.9fr) auto;
  gap: 14px;
  align-items: end;
  margin-top: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(104, 116, 111, 0.18);
  border-radius: 16px;
  background: var(--surface-strong);
  color: var(--ink);
  padding: 0 14px;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 159, 122, 0.16);
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.seg,
.icon-btn,
.small-btn {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 14px;
  font-weight: 850;
}

.small-btn {
  min-height: 36px;
  border-color: rgba(104, 116, 111, 0.18);
  background: var(--surface-strong);
  color: var(--muted);
}

.share-btn {
  border-color: rgba(49, 94, 168, 0.16);
  background: var(--blue-soft);
  color: var(--blue);
}

.notify-btn {
  border-color: rgba(15, 159, 122, 0.16);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.notify-btn.active {
  background: var(--accent);
  color: white;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  box-shadow: 0 12px 24px rgba(15, 159, 122, 0.22);
}

.primary-btn:hover {
  box-shadow: 0 16px 28px rgba(15, 159, 122, 0.28);
}

.secondary-btn {
  border-color: rgba(49, 94, 168, 0.16);
  background: var(--blue-soft);
  color: var(--blue);
}

.toolbar {
  display: grid;
  grid-template-columns: auto minmax(220px, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin: 16px 0;
  padding: 14px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  padding: 6px;
  border: 1px solid rgba(104, 116, 111, 0.14);
  border-radius: 18px;
  background: rgba(238, 244, 241, 0.72);
}

.seg {
  min-width: 92px;
  background: transparent;
  color: var(--muted);
  border-radius: 13px;
}

.seg.active {
  background: var(--surface-strong);
  color: var(--blue);
  border-color: rgba(49, 94, 168, 0.18);
  box-shadow: 0 8px 18px rgba(35, 49, 43, 0.08);
}

.search-wrap {
  min-width: 0;
}

.ghost-btn {
  border-color: var(--line);
  background: var(--surface-strong);
  color: var(--warn);
}

.list-panel {
  min-height: 320px;
  padding: 18px;
}

.weekly-panel {
  margin-bottom: 16px;
  padding: 18px;
}

.list-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.shopping-list,
.weekly-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.shopping-item,
.weekly-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: 10px;
  align-items: center;
  min-height: 72px;
  border: 1px solid rgba(104, 116, 111, 0.14);
  border-left: 5px solid var(--accent);
  border-radius: 20px;
  background: var(--surface-strong);
  padding: 12px;
  box-shadow: 0 10px 24px rgba(35, 49, 43, 0.07);
}

.weekly-item {
  min-height: 72px;
  border-left-color: var(--purple);
}

.weekly-form {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(120px, 0.45fr) minmax(150px, 0.55fr) auto;
  gap: 12px;
  align-items: end;
  margin: 14px 0;
}

.item-main {
  min-width: 0;
}

.item-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

.item-name {
  overflow-wrap: anywhere;
  font-size: 1.13rem;
  line-height: 1.25;
}

.item-meta {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  margin-top: 8px;
  max-width: 100%;
  overflow: hidden;
}

.item-actions {
  display: flex;
  gap: 5px;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  border-color: rgba(104, 116, 111, 0.14);
  border-radius: 12px;
  background: #f7faf9;
  color: var(--muted);
  padding: 0;
  font-size: 1.02rem;
  line-height: 1;
}

.bought-btn {
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-color: rgba(15, 159, 122, 0.18);
}

.delete-btn,
.delete-weekly-btn {
  color: var(--warn);
  background: var(--warn-soft);
  border-color: rgba(198, 71, 48, 0.16);
}

.empty-state {
  display: grid;
  place-items: center;
  gap: 7px;
  min-height: 220px;
  color: var(--muted);
  text-align: center;
  border: 1px dashed rgba(104, 116, 111, 0.28);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.52);
}

.empty-state strong {
  color: var(--ink);
}

.empty-state.compact {
  min-height: 120px;
}

@media (max-width: 860px) {
  .toolbar {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .summary {
    justify-content: flex-start;
  }

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

  .primary-btn,
  .secondary-btn,
  .ghost-btn {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100vw - 18px, 1120px);
    padding: 10px 0 24px;
  }

  .topbar,
  .composer,
  .weekly-panel,
  .list-panel {
    border-radius: 20px;
    padding: 14px 14px 14px 16px;
  }

  .toolbar {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    margin: 10px 0;
    border-radius: 18px;
    padding: 8px 8px 8px 12px;
  }

  .composer,
  .weekly-panel {
    padding: 10px 14px 10px 16px;
  }

  .composer::before,
  .toolbar::before,
  .weekly-panel::before,
  .list-panel::before {
    width: 4px;
    border-radius: 20px 0 0 20px;
  }

  .collapsible-panel[open] {
    padding-bottom: 14px;
  }

  .collapsible-panel summary {
    min-height: 42px;
  }

  .item-form,
  .weekly-form,
  .weekly-item {
    grid-template-columns: 1fr;
  }

  .shopping-item {
    grid-template-columns: minmax(0, 1fr) max-content;
    gap: 8px;
  }

  .item-meta {
    gap: 4px;
  }

  .item-meta span,
  .item-quantity {
    min-width: 0;
    padding: 4px 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.68rem;
  }

  .item-person,
  .item-category {
    max-width: 28%;
  }

  .item-date {
    flex: 1 1 auto;
    max-width: 44%;
    text-align: center;
  }

  .search-wrap {
    grid-column: 1 / -1;
    gap: 0;
    order: -1;
  }

  .search-wrap span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }

  .search-wrap input {
    min-height: 38px;
    border-radius: 14px;
    padding: 0 12px;
    font-size: 0.92rem;
  }

  .segmented {
    gap: 4px;
    padding: 4px;
    border-radius: 14px;
  }

  .seg {
    min-width: 0;
    min-height: 36px;
    padding: 0 8px;
    border-radius: 10px;
    font-size: 0.86rem;
  }

  #load-weekly-btn {
    width: auto;
    min-height: 36px;
    padding: 0 10px;
    border-radius: 12px;
    font-size: 0.82rem;
    white-space: nowrap;
  }

  .shopping-item,
  .weekly-item {
    align-items: start;
    min-height: 0;
  }

  .item-actions {
    display: flex;
    width: auto;
  }

  .icon-btn {
    flex: 0 0 auto;
    width: 32px;
    min-width: 32px;
    height: 32px;
    min-height: 32px;
    font-size: 0.98rem;
  }

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