/* Autobyte — calculators panel + nav button */
/* calculators nav button */
.navbtn {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  color: #dfeaea; border-radius: 10px; padding: 8px 13px; cursor: pointer;
  font-size: 13.5px; font-weight: 600; font-family: inherit;
  transition: background .2s, transform .2s, border-color .2s;
}
.navbtn:hover { background: rgba(25,166,164,.18); border-color: var(--primary);
  color: #fff; transform: translateY(-1px); }
.navbtn svg { width: 18px; height: 18px; }

/* calculators overlay */
.calc { position: fixed; inset: 0; z-index: 60; display: flex;
  align-items: flex-start; justify-content: center; padding: 4vh 16px; overflow-y: auto; }
.calc[hidden] { display: none; }
.calc__backdrop { position: fixed; inset: 0; background: rgba(8,14,18,.6);
  backdrop-filter: blur(2px); animation: fade .2s ease both; }
.calc__panel {
  position: relative; width: 100%; max-width: 1040px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; box-shadow: var(--shadow); padding: 24px 26px 28px;
  animation: pop .26s cubic-bezier(.2,.8,.2,1) both;
}
.calc__head { display: flex; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.calc__title { font-size: 22px; font-weight: 800; margin: 0; letter-spacing: -.4px; }
.calc__sub { color: var(--muted); font-size: 13.5px; margin: 4px 0 0; }
.calc__filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.cchip {
  border: 1px solid var(--border); background: var(--bg); color: var(--slate-soft);
  border-radius: 999px; padding: 7px 15px; font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: all .14s;
}
.cchip:hover { border-color: var(--primary); color: var(--primary); }
.cchip.on { background: var(--primary); border-color: var(--primary); color: #fff; }

.calc__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 16px; }
.ccard {
  background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px 16px 14px; display: flex; flex-direction: column; gap: 10px;
  animation: rise .4s cubic-bezier(.2,.8,.2,1) both;
}
.ccard__head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.ccard__head h3 { margin: 0; font-size: 15.5px; font-weight: 700; }
.ccard__cat { font-size: 10.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .6px; color: var(--primary); background: rgba(14,124,123,.10);
  padding: 3px 8px; border-radius: 999px; }
.ccard__desc { color: var(--muted); font-size: 12.5px; margin: -2px 0 2px; line-height: 1.45; }
.ccard__fields { display: grid; gap: 9px; }
.cfield { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; }
.cfield > span { font-size: 13px; font-weight: 600; color: var(--slate-soft); }
.cfield__in { position: relative; display: inline-flex; align-items: center; }
.cfield input, .cfield select {
  width: 130px; background: var(--surface); color: var(--slate);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px;
  font-size: 14px; font-family: inherit; text-align: right;
}
.cfield select { text-align: left; cursor: pointer; color-scheme: light dark; }
.cfield input:focus, .cfield select:focus { outline: 0; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,124,123,.14); }
.cfield__u { position: absolute; right: 10px; font-style: normal; font-size: 12px;
  color: var(--muted); pointer-events: none; }
.cfield__in input { padding-right: 34px; }
.cfield__in--u { display: flex; align-items: center; gap: 6px; }
.cfield__in--u input { width: 78px; padding-right: 10px; }
.cfield__uSel {
  width: auto; min-width: 56px; text-align: left; cursor: pointer;
  padding: 8px 6px; font-size: 12.5px; color-scheme: light dark;
}

.ccard__out { display: grid; gap: 6px; margin-top: 4px; padding-top: 10px;
  border-top: 1px dashed var(--border); }
.cout { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.cout__l { font-size: 12.5px; color: var(--muted); }
.cout__v { font-size: 14px; font-weight: 600; color: var(--slate); }
.cout__v i { font-style: normal; font-size: 11.5px; color: var(--muted); font-weight: 500; }
.cout--primary .cout__l { color: var(--slate-soft); font-weight: 600; }
.cout--primary .cout__v { font-size: 18px; font-weight: 800; color: var(--primary); }
.cout--primary .cout__v i { color: var(--primary); opacity: .8; }
.cout__hint { font-size: 13px; color: var(--muted); font-style: italic; }
.ccard__note { font-size: 11.5px; color: var(--muted); margin: 2px 0 0; line-height: 1.4; }

@media (max-width: 540px) {
  .navbtn span { display: none; }
  .navbtn { padding: 8px; }
  .calc__panel { padding: 18px 14px 22px; }
  .calc__grid { grid-template-columns: 1fr; }
}