/* Calculator page. Builds on /tm/style.css tokens (green accent on near-black, IBM Plex stack). */
.calc { padding: 40px 0 72px; }
.calc__head { max-width: 760px; margin: 0 0 36px; }
.calc__head h1 { text-align: left; margin: 14px 0 14px; max-width: none; font-size: clamp(32px, 4.6vw, 48px); letter-spacing: -1.2px; }
.calc__head .lead { margin: 0; max-width: 640px; text-align: left; }

.c-grid { display: grid; grid-template-columns: minmax(0, 400px) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 920px) { .c-grid { grid-template-columns: 1fr; } }

.c-panel { padding: 26px; background: var(--s1); border: 1px solid var(--line); border-radius: var(--r-lg); }
.c-controls { position: sticky; top: 84px; }
@media (max-width: 920px) { .c-controls { position: static; } .c-panel { padding: 20px; } }
.c-h { margin: 0 0 20px; font: 600 12.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

.c-field { border: 0; padding: 0; margin: 0 0 26px; min-width: 0; }
.c-field:last-child { margin-bottom: 0; }
.c-label { display: block; margin: 0 0 10px; padding: 0; font-weight: 600; font-size: 15px; }
.c-hint { margin: 8px 0 0; font-size: 13.5px; color: var(--muted); min-height: 20px; }

/* money input */
.c-money { display: flex; align-items: center; gap: 10px; min-height: 64px; padding: 0 18px; background: var(--inset); border: 1px solid var(--line); border-radius: var(--r-md); }
.c-money:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.c-money span { font: 600 26px/1 var(--mono); color: var(--faint); }
.c-money .c-money__unit { font-size: 12px; letter-spacing: .12em; margin-left: auto; }
.c-money input { flex: 1; min-width: 0; width: 100%; min-height: 44px; background: transparent; border: 0; padding: 0; color: var(--text); font: 700 30px/1.2 var(--mono); letter-spacing: -.5px; -moz-appearance: textfield; }
.c-money input::-webkit-outer-spin-button, .c-money input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.c-money input:focus { outline: none; }

.c-presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px; }
.c-presets button { min-height: 44px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--line); background: transparent; color: var(--muted); font: 600 13px/1 var(--mono); cursor: pointer; transition: border-color .15s, color .15s, background .15s; }
.c-presets button:hover { color: var(--text); border-color: #3a4048; }
.c-presets button[aria-pressed="true"] { background: var(--accent-tint); color: var(--accent-text); border-color: rgba(52, 211, 153, .5); }

.c-field .select { width: 100%; flex: none; }

/* workload radios */
.c-mix { display: grid; gap: 8px; }
.c-mix legend { float: left; width: 100%; }
.c-mix legend + * { clear: both; }
.c-opt { position: relative; display: block; cursor: pointer; }
.c-opt input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.c-opt span { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; min-height: 48px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r-md); background: transparent; transition: border-color .15s, background .15s; }
.c-opt b { font-size: 14.5px; font-weight: 600; }
.c-opt small { font: 500 12.5px/1 var(--mono); color: var(--muted); white-space: nowrap; }
.c-opt b { display: flex; align-items: center; gap: 10px; }
.c-opt b::before { content: ""; width: 16px; height: 16px; flex: none; border-radius: 50%; border: 2px solid #4a525b; transition: border-color .15s, background .15s, box-shadow .15s; }
.c-opt input:checked + span b::before { border-color: var(--accent); background: var(--accent); box-shadow: inset 0 0 0 3px var(--s1); }
.c-opt:hover span { border-color: #3a4048; }
.c-opt input:checked + span { border-color: rgba(52, 211, 153, .6); background: var(--accent-tint); }
.c-opt input:checked + span small { color: var(--accent-text); }
.c-opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* result */
.c-result { min-height: 420px; }
.c-answer { margin: 0 0 6px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.c-big { font: 800 clamp(48px, 8vw, 76px)/1 var(--mono); letter-spacing: -2.5px; color: var(--accent-text); }
.c-answer > span:last-child { color: var(--muted); font-size: 17px; }
.c-times { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; margin: 14px 0 32px; color: var(--muted); font-size: 15px; line-height: 1.5; }
.c-times b { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border-radius: 999px; background: var(--accent-tint); border: 1px solid rgba(52, 211, 153, .45); font: 800 24px/1 var(--mono); letter-spacing: -.5px; color: var(--accent-text); }
.c-times span { flex: 1 1 240px; min-width: 0; }

.c-rows { display: grid; gap: 22px; margin: 0 0 24px; }
.row__top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.row__name { font-weight: 600; font-size: 15px; color: var(--muted); }
.row__val { font: 700 22px/1 var(--mono); letter-spacing: -.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.bar { height: 14px; background: #20252b; border: 1px solid #2d333a; border-radius: 99px; overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; border-radius: 99px; background: #5b646e; transition: width .55s cubic-bezier(.2, .8, .2, 1); }
.row__sub { margin-top: 8px; font: 500 13px/1.3 var(--mono); color: var(--muted); }
.row--tm .row__name { color: var(--text); }
.row--tm .row__name::after { content: "You pay this"; margin-left: 10px; padding: 4px 8px; border-radius: 4px; background: var(--accent); color: var(--accent-ink); font: 800 11px/1.2 var(--sans); letter-spacing: .08em; text-transform: uppercase; vertical-align: 2px; }
.row--tm .row__val { color: var(--accent-text); font-size: 28px; }
.row--tm .bar { height: 18px; }
.row--tm .bar span { background: linear-gradient(90deg, #22b07d, var(--accent)); box-shadow: 0 0 22px -4px var(--accent-glow); }
.row--tm .row__sub { color: var(--muted); }

.c-same { margin: 0 0 6px; padding: 16px 18px; border: 1px dashed #3f4750; border-radius: var(--r-md); color: var(--text); font-size: 15px; }
.c-split { margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.c-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.c-actions .btn { min-height: 48px; }
#share { border-color: #3f4750; }
#share:hover { border-color: var(--accent); }
.nb { white-space: nowrap; }
.c-foot { margin: 20px 0 0; font-size: 13px; color: var(--muted); line-height: 1.6; }
#c-empty { padding: 56px 12px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: var(--r-md); }
#c-status { padding: 22px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: var(--r-md); }

/* method + faq */
.c-method { max-width: 820px; margin: 56px 0 0; }
.c-method h2 { font-size: clamp(24px, 3vw, 30px); margin: 0 0 8px; }
.c-method > p { color: var(--muted); margin: 0 0 22px; }
.c-formula { margin: 0 0 24px; padding: 18px; background: var(--inset); border: 1px solid var(--line); border-radius: var(--r-md); font: 13.5px/1.9 var(--mono); overflow-x: auto; }
.c-formula b { color: var(--accent-text); font-weight: 600; }

@media (prefers-reduced-motion: reduce) { .bar span, .c-presets button, .c-opt span { transition: none; } }
@media (max-width: 600px) {
  .c-money input { font-size: 26px; }
  .row--tm .row__name::after { display: none; }
  .c-times b { font-size: 22px; }
  .c-actions .btn { width: 100%; }
  .c-presets button { min-height: 44px; }
}

/* mobile: the result sits far below the inputs, so keep the headline number in view */
.c-dock { display: none; }
@media (max-width: 920px) {
  .c-dock { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 25; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; padding: 0 18px; border-radius: 14px; background: rgba(20, 22, 24, .96); border: 1px solid rgba(52, 211, 153, .5); color: var(--text); text-decoration: none; box-shadow: 0 14px 40px -10px rgba(0, 0, 0, .8); }
  .c-dock b { font: 800 22px/1 var(--mono); color: var(--accent-text); letter-spacing: -.5px; }
  .c-dock span { font: 600 13px/1.2 var(--mono); color: var(--muted); }
  .c-dock.is-hidden, .c-dock.is-seen { display: none; }
  footer { padding-bottom: 96px; }
}