:root {
  --bg: #12160f;
  --bg-elev: #1a2016;
  --bg-elev-2: #232a1c;
  --surface: #1d2415;
  --border: #303a26;
  --border-strong: #46543a;
  --text: #eef3e6;
  --muted: #9fb090;
  --accent: #7ed957;
  --accent-strong: #5fc23a;
  --accent-ink: #0f1607;
  --good: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --card-top: #222a1a;
  --card-bottom: #1a2013;
  --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --header-bg: rgba(18, 22, 15, 0.78);
  --btn-hover: #2a331f;
  --sk-a: #20281a;
  --sk-b: #2c3622;
  --backdrop: rgba(6, 9, 4, 0.72);
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  --maxw: 760px;
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #f4f7ef;
  --bg-elev: #ffffff;
  --bg-elev-2: #eaf0e1;
  --surface: #ffffff;
  --border: #d9e2cc;
  --border-strong: #bccca6;
  --text: #1c2415;
  --muted: #63715a;
  --accent: #3f9a1f;
  --accent-strong: #348016;
  --accent-ink: #ffffff;
  --good: #1f9d55;
  --warn: #b7791f;
  --danger: #d64545;
  --card-top: #ffffff;
  --card-bottom: #f3f7ec;
  --card-shadow: 0 4px 16px rgba(30, 50, 15, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  --header-bg: rgba(244, 247, 239, 0.8);
  --btn-hover: #e6eedb;
  --sk-a: #e9efe0;
  --sk-b: #f2f7ea;
  --backdrop: rgba(20, 30, 12, 0.4);
  --shadow: 0 12px 28px rgba(30, 50, 15, 0.18);
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--accent); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ------------------------------- header -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 56px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-mark { font-size: 1.25em; }
.header-actions { display: flex; align-items: center; gap: 8px; }

.conn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  white-space: nowrap;
}
.conn .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); }
.conn[data-state="online"] .dot { background: var(--good); }
.conn[data-state="offline"] .dot,
.conn[data-state="error"] .dot { background: var(--danger); }

.btn {
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  white-space: nowrap;
}
.btn:hover { background: var(--btn-hover); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); border-color: var(--accent-strong); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--btn-hover); }
.btn-danger { background: transparent; border-color: var(--border); color: var(--danger); }
.btn-danger:hover { background: rgba(248, 113, 113, 0.12); border-color: var(--danger); }
.btn-block { display: block; width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.icon-btn { padding: 8px 10px; line-height: 1; }

#identity-btn { gap: 7px; max-width: 220px; }
#identity-btn code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ident-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; }

/* -------------------------------- main --------------------------------- */
main { flex: 1 0 auto; padding: 22px 0 40px; }
.view { animation: fade 0.2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.page-head h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.02em; }
.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.error { color: var(--danger); font-size: 0.85rem; }

/* ------------------------------ login ---------------------------------- */
#login-view { max-width: 440px; margin: 4vh auto 0; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
  margin-bottom: 16px;
}
.login-title { margin: 0 0 6px; font-size: 1.7rem; letter-spacing: -0.02em; }
.login-card > .muted { margin-top: 0; }
.login-card .btn-primary { margin-top: 14px; }
#ext-slot:not(:empty) { margin-top: 14px; }
.signer-btn { margin-top: 14px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.signer-ico { font-size: 1.05rem; line-height: 1; }
.import-details { margin-top: 14px; }
.import-details summary { cursor: pointer; color: var(--muted); font-size: 0.9rem; }
.import-row { display: flex; gap: 8px; margin-top: 10px; }
.field-label { display: block; font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin: 14px 0 6px; }
.copy-row { display: flex; gap: 8px; align-items: stretch; }
.copy-code {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  overflow-x: auto;
  white-space: nowrap;
}
.key-code {
  white-space: normal;
  word-break: break-all;
  font-size: 0.78rem;
  line-height: 1.4;
  max-height: 7.5em;
  overflow-y: auto;
}

.input {
  font: inherit;
  width: 100%;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.input:focus { outline: none; border-color: var(--accent); }
.input::placeholder { color: var(--muted); }

/* ------------------------------ lists ---------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.list-card {
  position: relative;
  text-align: left;
  background: linear-gradient(180deg, var(--card-top), var(--card-bottom));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--card-shadow);
  cursor: pointer;
  transition: transform 0.12s, border-color 0.12s;
}
.list-card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.list-card h3 { margin: 0 0 4px; font-size: 1.08rem; letter-spacing: -0.01em; }
.list-card .count { font-size: 0.84rem; color: var(--muted); }
.list-card .bar { height: 7px; border-radius: 999px; background: var(--bg); margin: 12px 0 8px; overflow: hidden; border: 1px solid var(--border); }
.list-card .bar > span { display: block; height: 100%; background: var(--accent); transition: width 0.3s; }
.list-card .foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.avatars { display: inline-flex; }
.avatars > i {
  width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.62rem; font-weight: 700; font-style: normal;
  color: var(--accent-ink); background: var(--accent);
  border: 2px solid var(--card-bottom);
  margin-left: -7px;
}
.avatars > i:first-child { margin-left: 0; }
.list-card .lock { font-size: 0.78rem; color: var(--warn); }
.list-card.locked { opacity: 0.85; }

.empty { text-align: center; padding: 48px 16px; }
.empty-icon { font-size: 2.6rem; margin: 0; }
.empty h2 { margin: 8px 0; font-size: 1.2rem; }
.empty-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.head-btns { display: flex; gap: 10px; flex-wrap: wrap; }

/* ------------------------------ detail --------------------------------- */
.detail-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.title-input {
  font: inherit;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  flex: 1;
  min-width: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 6px 8px;
}
.title-input:hover { border-color: var(--border); }
.title-input:focus { outline: none; border-color: var(--accent); background: var(--bg); }

.members { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 16px; }
.member-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.76rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 3px 9px 3px 4px;
}
.member-chip .avatars > i { width: 18px; height: 18px; margin: 0; border-width: 0; }

.add-form { display: flex; gap: 8px; margin-bottom: 16px; }
.add-form .input { flex: 1; }

.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.item {
  display: flex; align-items: center; gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.item .check {
  appearance: none; -webkit-appearance: none;
  width: 22px; height: 22px; flex: none;
  border: 2px solid var(--border-strong); border-radius: 6px;
  cursor: pointer; position: relative; transition: background 0.15s, border-color 0.15s;
}
.item .check:checked { background: var(--accent); border-color: var(--accent-strong); }
.item .check:checked::after {
  content: "✓"; position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-ink); font-size: 15px; font-weight: 900;
}
.item .text { flex: 1; min-width: 0; word-break: break-word; }
.item.done .text { text-decoration: line-through; color: var(--muted); }
.item .del {
  border: none; background: transparent; color: var(--muted);
  font-size: 1.1rem; line-height: 1; cursor: pointer; padding: 4px 6px; border-radius: 6px;
}
.item .del:hover { color: var(--danger); background: var(--btn-hover); }

.detail-foot { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.detail-foot .btn-danger { margin-left: auto; }

/* ------------------------------- modal --------------------------------- */
.modal { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal-backdrop { position: absolute; inset: 0; background: var(--backdrop); backdrop-filter: blur(2px); }
.modal-card {
  position: relative;
  width: 100%; max-width: 480px; max-height: 86vh; overflow-y: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.modal-close {
  position: absolute; top: 10px; right: 12px;
  border: none; background: transparent; color: var(--muted);
  font-size: 1.5rem; line-height: 1; cursor: pointer;
}
.modal-close:hover { color: var(--text); }
.modal-card h2 { margin: 0 0 4px; font-size: 1.25rem; }
.modal-card h3 { margin: 20px 0 8px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.share-row { display: flex; gap: 8px; margin-top: 12px; }
.share-row .input { flex: 1; }
.invite { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }
.members-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.members-list li { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; padding: 6px 0; }
.members-list .who { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.you-tag { font-size: 0.68rem; color: var(--accent-ink); background: var(--accent); border-radius: 999px; padding: 1px 7px; font-weight: 700; }

/* --------------------------- signer (NIP-46) --------------------------- */
.qr-wrap {
  display: flex;
  justify-content: center;
  background: #fff;
  padding: 12px;
  border-radius: 12px;
  margin: 10px auto 14px;
  width: fit-content;
  border: 1px solid var(--border);
}
.qr-wrap svg { width: 208px; height: 208px; display: block; }
.center { text-align: center; }
.signer-note { margin-top: 12px; }
.signer-modal .btn-block { margin-top: 4px; }
.signer-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 0.76rem; color: var(--muted); }

/* ------------------------------- misc ---------------------------------- */
.site-footer { flex: none; border-top: 1px solid var(--border); padding: 16px 0; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 999px; font-size: 0.88rem; font-weight: 600;
  box-shadow: var(--shadow); z-index: 60; max-width: 90vw; text-align: center;
}
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }
.toast { animation: toastIn 0.18s ease; }

[hidden] { display: none !important; }

@media (max-width: 520px) {
  .header-inner { height: auto; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; }
  #identity-btn { max-width: 130px; }
  .detail-foot .btn-danger { margin-left: 0; }
}

/* Chat styles */
.chat-card {
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  width: min(680px, 94vw);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 300px;
  max-height: 60vh;
}

.chat-message {
  display: flex;
  flex-direction: column;
  max-width: 80%;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  background: var(--bg-elev-2);
  word-wrap: break-word;
}

.chat-message.me {
  align-self: flex-end;
  background: var(--accent);
  color: var(--accent-fg);
}

.chat-message .meta {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-bottom: 0.25rem;
}

.chat-message.me .meta {
  text-align: right;
}

.chat-message .text {
  white-space: pre-wrap;
}

.chat-form {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
}

.chat-status {
  padding: 0.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted-fg);
}

.head-actions {
  display: flex;
  gap: 0.5rem;
}

/* ----------------------------- household --------------------------------- */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.tab {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 8px 12px;
  cursor: pointer;
  margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

.stock-tools { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
}
.chip:hover { background: var(--btn-hover); }
.chip.active { background: var(--accent); border-color: var(--accent-strong); color: var(--accent-ink); }

.cat-head {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin: 16px 0 6px;
}
.cat-head:first-child { margin-top: 0; }

.stock-list { display: flex; flex-direction: column; gap: 6px; }
.stock-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.stock-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
  font: inherit;
  color: var(--text);
  background: transparent;
  border: none;
  padding: 4px 2px;
  cursor: pointer;
  border-radius: 6px;
}
.stock-main:hover { background: var(--btn-hover); }
.stock-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stock-qty { font-size: 0.8rem; color: var(--muted); }
.qty-btn {
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1;
  width: 34px;
  height: 34px;
  flex: none;
  color: var(--text);
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}
.qty-btn:hover { background: var(--btn-hover); border-color: var(--border-strong); }

.badge {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 999px;
  padding: 1px 7px;
  vertical-align: middle;
  margin-left: 4px;
}
.badge-low { color: var(--warn); border: 1px solid var(--warn); background: transparent; }
.badge-warn { color: var(--accent-ink); background: var(--warn); }
.badge-danger { color: #fff; background: var(--danger); }

.products-head { display: flex; justify-content: flex-end; margin-bottom: 12px; }
.product-list { display: flex; flex-direction: column; gap: 6px; }
.product-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.12s;
}
.product-row:hover { border-color: var(--border-strong); }
.product-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.product-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.product-meta { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.product-qty { font-size: 0.85rem; color: var(--muted); white-space: nowrap; }

.entry-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.entry-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  font-size: 0.88rem;
}
.entry-qty { font-weight: 600; }
.entry-list .muted { flex: 1; }
.entry-list .del {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}
.entry-list .del:hover { color: var(--danger); background: var(--btn-hover); }

.household-card { border-left: 3px solid var(--accent); }