/* Page frame: header, views, bottom tab bar, shared controls. */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 var(--body);
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
.num { font-variant-numeric: tabular-nums; }

/* ---- header ---- */
header.top {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  padding-top: env(safe-area-inset-top, 0px);
}
.top-in {
  max-width: 720px; margin: 0 auto; height: var(--top-h);
  display: flex; align-items: center; justify-content: space-between; padding-inline: 16px;
}
.brand { margin: 0; font: 900 24px/1 var(--display); font-stretch: 75%; text-transform: uppercase; letter-spacing: .01em; }
.brand span { color: var(--accent); }
.icon-btn {
  width: 42px; height: 42px; border-radius: 50%; border: 0; background: transparent; color: var(--muted);
  display: grid; place-items: center;
}
.icon-btn:hover { background: var(--sunk); color: var(--ink); }

/* ---- views ---- */
main { max-width: 720px; margin: 0 auto; padding: 4px 16px calc(var(--tabbar-h) + 28px + env(safe-area-inset-bottom, 0px)); }
.view { display: flex; flex-direction: column; gap: 18px; }
.view-head h2, h2.title {
  margin: 0; font: 800 26px/1.1 var(--display); font-stretch: 82%; text-wrap: balance;
}
.view-head p { margin: 6px 0 0; color: var(--muted); max-width: 60ch; }
.label {
  font: 700 12px/1.2 var(--display); font-stretch: 90%; text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
}
.hint { margin: 0; font-size: 14px; color: var(--muted); }

/* ---- bottom tab bar ---- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; justify-content: center;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.tabbar button {
  position: relative; flex: 1; max-width: 160px; height: var(--tabbar-h); border: 0; background: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: var(--muted); font: 700 12px/1 var(--display); font-stretch: 90%; letter-spacing: .04em; text-transform: uppercase;
}
.tabbar svg { width: 24px; height: 24px; }
.tabbar button[aria-current="page"] { color: var(--accent); }
.tabbar button[aria-current="page"]::before {
  content: ""; position: absolute; top: 0; left: 30%; right: 30%; height: 3px; border-radius: 0 0 3px 3px; background: var(--accent);
}
.badge {
  position: absolute; top: 7px; left: calc(50% + 6px);
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--mustard); color: #fff; font: 700 11px/18px var(--body); text-align: center;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 16px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font-weight: 650; font-size: 15px; text-decoration: none;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.big { min-height: 52px; font-size: 17px; padding-inline: 22px; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--accent-soft); }
.btn.danger { color: var(--danger); }
.btn.small { min-height: 34px; padding: 5px 11px; font-size: 14px; border-radius: 8px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row.end { justify-content: flex-end; }

/* ---- chips ---- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips.scroll { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: -16px; padding-inline: 16px; }
.chips.scroll::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  border-radius: 20px; padding: 6px 12px; font-size: 14px; white-space: nowrap;
}
.chip:hover { border-color: var(--muted); }
.chip.add { border-style: dashed; color: var(--muted); background: transparent; }
.chip.add:hover { color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 650; }

/* ---- inputs ---- */
.field-input, .addbar input, select.field-input, textarea.field-input {
  width: 100%; min-width: 0; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface); font-size: 16px;
}
.field-input:focus, .addbar input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }

/* ---- empty / notice ---- */
.empty {
  padding: 28px 20px; border: 2px dashed var(--line); border-radius: var(--r);
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 12px;
}
.empty h3 { margin: 0; font: 800 20px/1.2 var(--display); font-stretch: 85%; }
.empty p { margin: 0; color: var(--muted); max-width: 44ch; }
.notice { padding: 12px 14px; border-radius: 10px; background: var(--mustard-soft); font-size: 14px; }

/* ---- toast ---- */
.toast {
  position: fixed; left: 50%; transform: translateX(-50%); z-index: 100;
  bottom: calc(var(--tabbar-h) + 14px + env(safe-area-inset-bottom, 0px));
  display: flex; align-items: center; gap: 14px;
  max-width: calc(100% - 32px); padding: 10px 10px 10px 16px; border-radius: 10px;
  background: var(--ink); color: var(--bg); font-size: 15px; box-shadow: var(--shadow);
  animation: toast-in .18s ease-out;
}
.toast button { border: 0; background: color-mix(in srgb, var(--bg) 18%, transparent); color: inherit; border-radius: 6px; font-weight: 800; padding: 6px 10px; text-transform: uppercase; font-size: 13px; letter-spacing: .04em; }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } }
@media (prefers-reduced-motion: reduce) { .toast { animation: none; } }