:root {
  --bg: #f3efe6;
  --bg-accent: #e7e0d2;
  --ink: #1c2421;
  --muted: #5c6a64;
  --panel: #fbf8f1;
  --line: #cfc5b4;
  --accent: #0f6b5c;
  --accent-ink: #07382f;
  --warn: #8a4b12;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --nav-height: 3.25rem;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #dfece7 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #ebe2cf 0%, transparent 50%),
    var(--bg);
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

/* Mobile top bar */
.nav-toggle {
  display: none;
  position: fixed;
  top: calc(var(--safe-top) + 0.5rem);
  left: calc(var(--safe-left) + 0.75rem);
  z-index: 40;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 92%, white);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  cursor: pointer;
}
.nav-toggle-icon {
  width: 1rem;
  height: 0.12rem;
  background: currentColor;
  border-radius: 1px;
  box-shadow: 0 -0.34rem 0 currentColor, 0 0.34rem 0 currentColor;
}
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(28, 36, 33, 0.45);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, #d5e4df);
  padding: 1.25rem 0.9rem;
  overflow: auto;
  max-height: 100vh;
  position: sticky;
  top: 0;
}
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.nav-close {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.brand {
  display: block;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--accent-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.muted { color: var(--muted); font-size: 0.82rem; margin: 0.35rem 0 1rem; }
nav { display: flex; flex-direction: column; gap: 0.2rem; }

.sheet-link {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.65rem 0.7rem;
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  min-height: 2.75rem;
  align-items: center;
}
.sheet-link:hover { background: var(--bg-accent); }
.sheet-link.active { background: var(--accent); color: #f7fbf9; }
.sheet-link .count {
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.75;
  flex-shrink: 0;
}

main {
  padding: 1.5rem 1.75rem calc(2rem + var(--safe-bottom));
  min-width: 0;
}
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
}
.top h1 { margin: 0 0 0.35rem; letter-spacing: -0.03em; font-size: clamp(1.35rem, 4vw, 1.75rem); }
.messages-btn {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  min-height: 2.75rem;
  background: var(--accent);
  color: #f4fffb;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.top-row > form,
.top-row > .messages-btn { flex-shrink: 0; }
.top-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  flex-wrap: nowrap;
}
.top-actions form { margin: 0; }
.logout-btn {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  min-height: 2.75rem;
  background: var(--panel);
  cursor: pointer;
  white-space: nowrap;
}
.logout-btn:hover { background: var(--bg-accent); }

.login-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: calc(1.5rem + var(--safe-top)) 1rem calc(1.5rem + var(--safe-bottom));
}
.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem;
}
.login-card h1 { margin-top: 0; font-size: 1.5rem; }
.login-form {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}
.login-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.login-form input,
.login-form button,
.search input,
.search select,
.search button {
  font: inherit;
  font-size: 16px; /* prevents iOS zoom on focus */
}
.login-form input,
.login-form button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 0.95rem;
  min-height: 3rem;
}
.login-form button {
  background: var(--accent);
  color: #f4fffb;
  border-color: var(--accent-ink);
  font-weight: 600;
  cursor: pointer;
}
.error { color: #9a3412; background: #fff7ed; border: 1px solid #fdba74; padding: 0.65rem 0.8rem; border-radius: 10px; }
.lede { margin: 0 0 1rem; color: var(--muted); max-width: 42rem; }
.crumb { margin: 0 0 0.4rem; color: var(--muted); font-size: 0.9rem; word-break: break-word; }
.crumb a { color: var(--accent); }

.search {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.55rem;
  margin: 1rem 0 1.5rem;
}
.search-compact { grid-template-columns: 1fr auto; }
.search input, .search select, .search button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  min-height: 3rem;
  background: var(--panel);
  color: var(--ink);
}
.search input { min-width: 0; }
.search button {
  background: var(--accent);
  color: #f4fffb;
  border-color: var(--accent-ink);
  font-weight: 600;
  cursor: pointer;
  padding-inline: 1.1rem;
}
.search button:hover { filter: brightness(1.05); }

.results h2, .hint h2 { font-size: 1rem; color: var(--muted); font-weight: 500; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  margin: 0.75rem 0;
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.55rem;
}
.card-meta a { color: var(--accent); font-weight: 600; text-decoration: none; }
.card dl { margin: 0; display: grid; gap: 0.55rem; }
.field-row { display: grid; gap: 0.25rem; }
.card dt { color: var(--muted); font-size: 0.82rem; }
.card dd {
  margin: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.card dd code {
  flex: 1 1 12rem;
  min-width: 0;
}
.copy-btn {
  flex: 0 0 auto;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  min-height: 2.25rem;
  background: var(--bg-accent);
  color: var(--accent-ink);
  cursor: pointer;
}
.copy-btn.copied {
  background: var(--accent);
  color: #f4fffb;
  border-color: var(--accent-ink);
}
code, .hint code {
  font-family: var(--mono);
  font-size: 0.86rem;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.hint ul { line-height: 1.7; color: var(--ink); padding-left: 1.1rem; }
.empty { color: var(--warn); }

.mobile-only { display: none; }
.desktop-only { display: block; }

.table-wrap {
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  max-height: calc(100vh - 11rem);
}
table { border-collapse: collapse; width: max-content; min-width: 100%; font-size: 0.86rem; }
th, td {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  padding: 0.55rem 0.65rem;
  text-align: left;
  vertical-align: top;
  max-width: 280px;
}
th {
  position: sticky;
  top: 0;
  background: #e8efe9;
  z-index: 1;
  font-weight: 600;
  white-space: nowrap;
}
.rownum { color: var(--muted); font-family: var(--mono); width: 2.5rem; }

.mobile-rows .card:first-child { margin-top: 0; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }

  .layout { grid-template-columns: 1fr; }

  main {
    padding: calc(var(--nav-height) + var(--safe-top) + 0.75rem) 0.85rem calc(1.5rem + var(--safe-bottom));
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
    width: min(86vw, 320px);
    max-height: none;
    border-right: 1px solid var(--line);
    border-bottom: 0;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    padding-top: calc(1rem + var(--safe-top));
    padding-bottom: calc(1rem + var(--safe-bottom));
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  }
  body.nav-open .sidebar {
    transform: translateX(0);
    box-shadow: 8px 0 30px rgba(0, 0, 0, 0.18);
  }
  body.nav-open .sidebar-backdrop {
    display: block;
  }
  .nav-close { display: inline-flex; align-items: center; justify-content: center; }

  .top {
    position: static;
    backdrop-filter: none;
    background: transparent;
  }

  .search,
  .search-compact {
    grid-template-columns: 1fr;
    margin-bottom: 1rem;
  }

  .top-row {
    flex-direction: column;
    align-items: stretch;
  }
  .top-actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
    width: 100%;
    flex-wrap: nowrap;
  }

  .mobile-only { display: block; }
  .desktop-only { display: none !important; }

  .card dl > div,
  .field-row { grid-template-columns: 1fr; }

  .hint ul { font-size: 0.95rem; }

  .chat-fab {
    bottom: calc(1rem + var(--safe-bottom));
    right: calc(0.85rem + var(--safe-right));
  }
}

/* Edit */
.edit-btn, .ghost-btn, .save-btn {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  min-height: 2.25rem;
  cursor: pointer;
}
.edit-btn {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--accent-ink);
  margin-left: auto;
}
.edit-cell {
  white-space: nowrap;
  position: sticky;
  right: 0;
  background: var(--panel);
  z-index: 2;
}
.edit-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.edit-modal[hidden] { display: none !important; }
.edit-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 36, 33, 0.5);
}
.edit-panel {
  position: relative;
  z-index: 1;
  width: min(560px, 100%);
  max-height: min(88vh, 720px);
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem 1rem calc(1rem + var(--safe-bottom));
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}
.edit-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.edit-head h2 { margin: 0; font-size: 1.1rem; }
.edit-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}
.edit-form {
  display: grid;
  gap: 0.55rem;
  margin: 0.85rem 0;
  max-height: 50vh;
  overflow: auto;
}
.edit-field {
  display: grid;
  grid-template-columns: 1fr 1.2fr auto;
  gap: 0.4rem;
  align-items: center;
}
.edit-field input {
  font: inherit;
  font-size: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  min-height: 2.75rem;
}
.edit-remove {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-accent);
  cursor: pointer;
  font-size: 1.2rem;
}
.edit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.ghost-btn {
  border: 1px solid var(--line);
  background: var(--bg-accent);
  color: var(--ink);
}
.save-btn {
  border: 1px solid var(--accent-ink);
  background: var(--accent);
  color: #f4fffb;
  flex: 1 1 auto;
}

/* Chat */
.chat-fab {
  position: fixed;
  z-index: 35;
  bottom: calc(1.25rem + var(--safe-bottom));
  right: calc(1.25rem + var(--safe-right));
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 3rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--accent-ink);
  border-radius: 999px;
  background: var(--accent);
  color: #f4fffb;
  font: inherit;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(15, 107, 92, 0.35);
  cursor: pointer;
}
body.chat-open .chat-fab { display: none; }
.chat-drawer[hidden] { display: none !important; }
.chat-drawer {
  position: fixed;
  inset: 0;
  z-index: 70;
}
.chat-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 36, 33, 0.45);
}
.chat-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: min(88dvh, 640px);
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-radius: 18px 18px 0 0;
  padding: 0.85rem 0.85rem calc(0.85rem + var(--safe-bottom));
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.18);
}
.chat-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.chat-head h2 { margin: 0; font-size: 1.05rem; }
.chat-note { margin: 0.15rem 0 0; font-size: 0.78rem; }
.chat-name-setup {
  display: grid;
  gap: 0.65rem;
}
.chat-name-setup label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.chat-name-setup input,
.chat-compose input,
.chat-name-setup button,
.chat-compose button {
  font: inherit;
  font-size: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  min-height: 3rem;
}
.chat-name-setup button,
.chat-compose button {
  background: var(--accent);
  color: #f4fffb;
  border-color: var(--accent-ink);
  font-weight: 600;
  cursor: pointer;
}
.chat-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 0;
  flex: 1;
}
.chat-you { margin: 0; font-size: 0.85rem; }
.chat-messages {
  flex: 1;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 12rem;
  max-height: 42vh;
  padding: 0.35rem 0;
}
.chat-msg {
  background: var(--bg-accent);
  border-radius: 12px;
  padding: 0.55rem 0.7rem;
}
.chat-msg.mine {
  background: color-mix(in srgb, var(--accent) 18%, var(--panel));
  align-self: flex-end;
  max-width: 92%;
}
.chat-msg-head {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.chat-msg p { margin: 0; word-break: break-word; }
.chat-compose {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem;
}
.chat-page .chat-main { padding-bottom: calc(2rem + var(--safe-bottom)); }
.chat-page-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
}
.chat-messages-full {
  max-height: none;
  flex: 1;
  min-height: 50vh;
}
.chat-body-full { flex: 1; }

.layout-chat-only {
  grid-template-columns: 1fr;
}
.layout-chat-only .chat-main {
  padding-top: calc(0.75rem + var(--safe-top));
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}
.chat-only .chat-page-panel {
  min-height: calc(100dvh - 8rem);
}
.chat-banner {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  padding: 0.55rem 0.7rem;
  background: #eef6f2;
  border-radius: 10px;
  border: 1px solid #c8dfd6;
}

@media (min-width: 861px) {
  .chat-panel {
    left: auto;
    width: min(420px, 100%);
    right: 1rem;
    bottom: 1rem;
    border-radius: 16px;
    max-height: min(80vh, 620px);
  }
  .edit-panel {
    border-radius: 16px;
    margin-bottom: 2rem;
  }
  .edit-field {
    grid-template-columns: 0.9fr 1.2fr auto;
  }
}

@media (max-width: 860px) {
  .edit-field {
    grid-template-columns: 1fr auto;
  }
  .edit-field .edit-val {
    grid-column: 1 / -1;
  }
}