/* Calculator */
.win[data-app="calculator"] {
  --calc-bg: #0e0f13;
  --calc-text: #fff;
  --calc-text-2: rgba(255, 255, 255, .5);
  --calc-num: #2c2e34;
  --calc-num-fg: #fff;
  --calc-fn: #5b5e67;
  --calc-fn-fg: #fff;
  --calc-sci: #1c1e23;
  --calc-sci-fg: #e9eaee;
  --calc-op: #ff9f0a;
  --calc-op-fg: #fff;
  --calc-sheet: #1b1d23;
  --calc-press: 1.35;
  --calc-key-shadow: none;
  background: var(--calc-bg);
}
[data-theme="light"] .win[data-app="calculator"] {
  --calc-bg: #f1f2f6;
  --calc-text: #0f1115;
  --calc-text-2: rgba(15, 17, 21, .45);
  --calc-num: #ffffff;
  --calc-num-fg: #0f1115;
  --calc-fn: #d8dbe2;
  --calc-fn-fg: #0f1115;
  --calc-sci: #e5e7ec;
  --calc-sci-fg: #20232a;
  --calc-op: #ff9500;
  --calc-op-fg: #fff;
  --calc-sheet: #fbfbfd;
  --calc-press: .88;
  --calc-key-shadow: 0 1px 1.5px rgba(16, 24, 40, .08), 0 1px 0 rgba(16, 24, 40, .04);
}
.win[data-app="calculator"] .win-bar { background: var(--calc-bg); border-bottom-color: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
.win[data-app="calculator"] .win-title-text { color: var(--calc-text-2); }

.calc-bar-btn {
  height: 28px; min-width: 32px; padding: 0 8px; border: 0; border-radius: 8px; background: none;
  color: var(--calc-text-2); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; font-family: var(--font);
  transition: background .12s, color .12s;
}
.calc-bar-btn i { font-family: Georgia, 'Times New Roman', serif; font-size: 15px; font-weight: 600; margin-right: 1px; }
.calc-bar-btn:hover { background: var(--hover); color: var(--calc-text); }
.calc-bar-btn.on { color: var(--calc-op); background: rgba(255, 159, 10, .14); }

.app-calculator { background: var(--calc-bg); color: var(--calc-text); }
.calc-root {
  --cols: 4; --gap: 12px;
  --k: min(calc((100cqw - (var(--cols) - 1) * var(--gap)) / var(--cols)), calc((100cqh - 130px - 4 * var(--gap)) / 5));
  container-type: size; position: relative; flex: 1; min-height: 0;
  display: flex; flex-direction: column; padding: 0 16px 16px; overflow: hidden;
}
.calc-root.sci { --cols: 7; }

/* display */
.calc-display {
  flex: 1; min-height: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 4px 4px 10px;
  border-radius: 14px; cursor: pointer; outline: none; transition: background .2s;
}
.calc-display:hover .calc-copy-hint { opacity: 1; }
.calc-display:focus-visible { box-shadow: inset 0 0 0 2px var(--calc-op); }
.calc-display.copied .calc-val { animation: calc-copied .45s var(--ease); }
@keyframes calc-copied { 40% { opacity: .35; transform: scale(.97); } }
.calc-display-top { display: flex; align-items: center; justify-content: space-between; min-height: 18px; margin-bottom: auto; }
.calc-mode { font-size: 11px; font-weight: 800; letter-spacing: .06em; color: var(--calc-text-2); text-transform: uppercase; }
.calc-copy-hint { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 600; color: var(--calc-text-2); opacity: 0; transition: opacity .15s; }
.calc-expr-wrap { display: flex; justify-content: flex-end; overflow: hidden; height: 26px; align-items: flex-end; }
.calc-expr { white-space: nowrap; font-family: var(--font-display); font-size: 19px; font-weight: 300; color: var(--calc-text-2); letter-spacing: .01em; }
.calc-val-wrap { position: relative; display: flex; align-items: flex-end; justify-content: flex-end; height: clamp(54px, 22cqh, 88px); overflow: hidden; }
.calc-val {
  white-space: nowrap; font-family: var(--font-display); font-weight: 300; line-height: 1; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums; color: var(--calc-text); transform-origin: right bottom;
}
.calc-error .calc-val { color: #ff6b5e; }
.calc-bs {
  position: absolute; left: 0; bottom: 6px; width: 30px; height: 30px; border: 0; border-radius: 50%;
  background: none; color: var(--calc-text-2); display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .15s, background .12s;
}
.calc-bs.show { opacity: 1; pointer-events: auto; }
.calc-bs:hover { background: var(--hover); color: var(--calc-text); }

/* keypad */
.calc-pad { flex: 0 0 auto; display: flex; justify-content: center; gap: var(--gap); }
.calc-basic, .calc-sci { display: grid; gap: var(--gap); grid-auto-rows: var(--k); }
.calc-basic { grid-template-columns: repeat(4, var(--k)); }
.calc-sci { grid-template-columns: repeat(3, var(--k)); display: none; }
.sci .calc-sci { display: grid; animation: calc-sci-in .28s var(--ease); }
@keyframes calc-sci-in { from { opacity: 0; transform: translateX(-12px); } }

.calc-key {
  position: relative; border: 0; padding: 0; border-radius: 999px; display: grid; place-items: center;
  font-family: var(--font-display); font-size: calc(var(--k) * .42); font-weight: 400; line-height: 1;
  background: var(--calc-num); color: var(--calc-num-fg); box-shadow: var(--calc-key-shadow);
  transition: filter .25s, background .25s, color .25s, transform .08s;
  -webkit-tap-highlight-color: transparent;
}
.calc-key span { pointer-events: none; }
.calc-key:hover { filter: brightness(calc(1 + (var(--calc-press) - 1) * .4)); }
.calc-key:active, .calc-key.flash { filter: brightness(var(--calc-press)); transition-duration: 0s; }
.calc-key.k-fn { background: var(--calc-fn); color: var(--calc-fn-fg); font-size: calc(var(--k) * .36); font-weight: 500; }
.calc-key[data-k="clear"] span { font-family: var(--font); font-weight: 600; font-size: calc(var(--k) * .3); }
.calc-key.k-op { background: var(--calc-op); color: var(--calc-op-fg); font-size: calc(var(--k) * .46); }
.calc-key.k-op.on { background: var(--calc-op-fg); color: var(--calc-op); }
[data-theme="light"] .calc-key.k-op.on { background: #fff; box-shadow: inset 0 0 0 2px var(--calc-op); }
.calc-key.k-zero { grid-column: span 2; place-items: center start; padding-left: calc(var(--k) * .38); }
.calc-key.k-sci { background: var(--calc-sci); color: var(--calc-sci-fg); font-family: var(--font); font-size: max(11px, calc(var(--k) * .24)); font-weight: 600; }
.calc-key.k-sci.k-op-sci.on { background: var(--calc-op); color: #fff; }
.calc-key[data-k="deg"] span { font-size: .92em; color: var(--calc-op); }

/* history drawer */
.calc-scrim { position: absolute; inset: 0; background: rgba(0, 0, 0, .38); opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 2; }
.calc-hist {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(300px, 88%); z-index: 3;
  background: var(--calc-sheet); box-shadow: -18px 0 40px -18px rgba(0, 0, 0, .55); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; transform: translateX(104%); transition: transform .28s var(--ease);
  border-radius: 16px 0 0 16px;
}
.hist-open .calc-hist { transform: none; }
.hist-open .calc-scrim { opacity: 1; pointer-events: auto; }
.calc-hist-head { display: flex; align-items: center; gap: 8px; padding: 14px 10px 10px 18px; color: var(--text); }
.calc-hist-head b { flex: 1; font-size: 15px; }
.calc-hist-list { flex: 1; padding: 0 8px 12px; display: flex; flex-direction: column; gap: 2px; }
.calc-hist-item {
  border: 0; background: none; text-align: right; padding: 10px 12px; border-radius: 10px; display: flex; flex-direction: column; gap: 2px; flex: 0 0 auto;
  color: var(--text);
}
.calc-hist-item:hover { background: var(--hover); }
.calc-hist-e { font-size: 12.5px; color: var(--text-2); font-family: var(--font-display); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.calc-hist-r { font-family: var(--font-display); font-size: 22px; font-weight: 400; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.calc-hist-empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; padding: 50px 22px; color: var(--text-3); font-size: 12.5px; }
.calc-hist-empty b { color: var(--text-2); font-size: 13.5px; margin-top: 4px; }

/* phone */
[data-layout="mobile"] .calc-root { --gap: 14px; padding: 0 18px 30px; }
[data-layout="mobile"] .calc-root.sci { --gap: 8px; }