/* Калькулятор бюджета AI Masters - общие стили.
   Разметку и логику даёт /assets/calc.js, стартовые параметры - window.CALC_CONFIG
   на странице. Цветовые переменные (--accent, --text-muted и прочие) берутся из
   страницы-хозяина. */

.calc {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 32px; box-shadow: var(--shadow-md);
  margin-top: 36px; position: relative;
}

/* персональная скидка переговорщика */
.calc__key {
  position: absolute; top: 10px; right: 10px; z-index: 90;
  width: 28px; height: 28px; padding: 0; border: 0; background: none; cursor: default;
  opacity: .12; transition: opacity .18s; display: flex; align-items: center; justify-content: center;
}
.calc__key:hover, .calc__key:focus-visible { opacity: .55; outline: none; }
.calc__key.armed { opacity: .38; }
.calc__key.armed circle { fill: var(--accent); }
.calc__key svg { width: 15px; height: 15px; display: block; }
.calc__panel {
  position: absolute; top: 44px; right: 10px; z-index: 90; display: none;
  background: var(--bg-card); border: 1.5px solid var(--accent); border-radius: var(--radius);
  box-shadow: var(--shadow-md); padding: 16px; width: 232px;
}
.calc__panel.on { display: block; }
.calc__panel-label { font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-muted); margin-bottom: 6px; }
.calc__panel input { width: 100%; font: inherit; font-family: var(--font-mono); font-size: 20px; font-weight: 600; padding: 8px 12px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-light); color: var(--text-primary); }
.calc__panel input:focus { outline: none; border-color: var(--accent); }
.calc__panel-row { display: flex; gap: 8px; margin-top: 10px; }
.calc__panel-btn { flex: 1; font: inherit; font-size: 12.5px; font-weight: 600; padding: 7px 10px; border-radius: var(--radius-sm); border: 1.5px solid var(--border); background: var(--bg-light); color: var(--text-primary); cursor: pointer; }
.calc__panel-btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.calc__panel-note { font-size: 11.5px; color: var(--text-muted); margin-top: 10px; line-height: 1.4; }
.calc__grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-bottom: 8px; }
@media (min-width: 860px) { .calc__grid { grid-template-columns: repeat(3, 1fr); } }
.calc__step { border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.calc__step-label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 6px; }
.calc__step-title { font-size: 15px; font-weight: 700; margin-bottom: 12px; letter-spacing: -.01em; }
.calc__input {
  width: 100%; font: inherit; font-family: var(--font-mono); font-size: 22px; font-weight: 600;
  padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); background: var(--bg-light);
}
.calc__input:focus { outline: none; border-color: var(--accent); }
.calc__input--price { font-size: 17px; }
.calc__field { margin-top: 14px; }
.calc__field-label { font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-muted); margin-bottom: 5px; }
.calc__final { font-size: 12.5px; color: var(--accent-deep); font-weight: 600; margin-top: 7px; }
.calc__price-now { font-size: clamp(24px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.025em; color: var(--text-primary); line-height: 1.15; }
.calc__price-was { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 6px; font-size: 14px; font-weight: 600; color: var(--text-muted); }
.calc__price-was s { text-decoration: line-through; text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.calc__mc-rules { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.calc__mc-rule {
  display: flex; justify-content: space-between; gap: 10px; align-items: baseline;
  font-size: 12.5px; color: var(--text-muted); padding: 6px 10px; border-radius: 8px;
  border: 1.5px solid transparent;
}
.calc__mc-rule.on { border-color: var(--accent); background: #FFFFFF; color: var(--text-primary); font-weight: 600; }
.calc__mc-rule b { font-weight: 700; white-space: nowrap; }
.calc__price-was em {
  font-style: normal; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
  padding: 2px 9px; border-radius: 100px;
}
.calc__final s { color: var(--text-muted); font-weight: 600; text-decoration-thickness: 2px; text-decoration-color: var(--accent); margin-right: 6px; }
.calc__final b { font-weight: 800; }
.calc__final i {
  font-style: normal; display: inline-block; margin-left: 6px; background: var(--accent); color: #fff;
  font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 100px;
}
.calc__step-note { font-size: 12.5px; color: var(--text-muted); margin-top: 8px; line-height: 1.45; }
.calc__step.off { opacity: .45; }
.calc__step.off .calc__input { pointer-events: none; background: var(--bg-soft); }
.calc__toggle { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; cursor: pointer; user-select: none; }
.calc__toggle input { position: absolute; opacity: 0; }
.calc__toggle .tgl { width: 40px; height: 22px; border-radius: 11px; background: #D8D4CA; position: relative; transition: background .18s; flex-shrink: 0; }
.calc__toggle .tgl::after { content: ""; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: left .18s; }
.calc__toggle input:checked + .tgl { background: var(--accent); }
.calc__toggle input:checked + .tgl::after { left: 20px; }
.calc__toggle span.lbl { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.calc__toggle input:checked ~ span.lbl { color: var(--text-primary); }
.calc__bars { margin: 22px 0 6px; }
.calc__bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.calc__bar-name { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); width: 132px; flex-shrink: 0; }
.calc__bar-track { flex: 1; height: 22px; border-radius: 6px; background: var(--bg-soft); overflow: hidden; }
.calc__bar-fill { height: 100%; border-radius: 6px; background: var(--accent); transition: width .25s; min-width: 8px; }
.calc__bar-row:nth-child(2) .calc__bar-fill { background: #F08A6C; }
.calc__bar-row:nth-child(3) .calc__bar-fill { background: #F7C5B5; }
.calc__bar-val { font-family: var(--font-mono); font-size: 12px; color: var(--text-primary); width: 64px; flex-shrink: 0; text-align: right; }
.calc__tiers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 24px 0 4px; }
@media (min-width: 700px) { .calc__tiers { grid-template-columns: repeat(4, 1fr); } }
.calc__tier {
  border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px;
  background: var(--bg-light); transition: border-color .18s, background .18s;
}
.calc__tier.on { border-color: var(--accent); background: #FFF3EE; }
.calc__tier-range { font-family: var(--font-mono); font-size: 11px; letter-spacing: .05em; color: var(--text-muted); text-transform: uppercase; }
.calc__tier-val { font-size: 20px; font-weight: 800; letter-spacing: -.02em; color: var(--text-primary); margin-top: 3px; }
.calc__tier.on .calc__tier-val { color: var(--accent); }
.calc__lines { border-top: 1px solid var(--border); margin-top: 20px; padding-top: 18px; display: flex; flex-direction: column; gap: 8px; }
.calc__line { display: flex; justify-content: space-between; gap: 16px; font-size: 14.5px; color: var(--text-muted); flex-wrap: wrap; }
.calc__line strong { color: var(--text-primary); font-weight: 600; }
.calc__line strong s { color: var(--text-muted); font-weight: 600; margin-right: 8px; text-decoration: line-through; text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.calc__total { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; border-top: 2px solid var(--text-primary); margin-top: 14px; padding-top: 16px; flex-wrap: wrap; }
.calc__total-label { font-size: 16px; font-weight: 700; }
.calc__total-sum { font-size: clamp(26px, 3vw, 34px); font-weight: 800; letter-spacing: -.02em; color: var(--accent); white-space: nowrap; }
/* поделиться расчётом */
.calc__share { display: flex; justify-content: space-between; align-items: center; gap: 10px 16px; flex-wrap: wrap; margin-top: 12px; }
.calc__share-note { font-size: 12.5px; color: var(--text-muted); }
.calc__share-btn {
  display: inline-flex; align-items: center; gap: 8px; font: inherit; font-size: 14px; font-weight: 600;
  padding: 9px 16px; border-radius: var(--radius-sm); border: 1.5px solid var(--accent);
  background: var(--bg-card); color: var(--accent); cursor: pointer; white-space: nowrap;
  transition: background .18s, color .18s;
}
.calc__share-btn:hover { background: #FFF3EE; }
.calc__share-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.calc__share-btn.done { background: var(--accent); color: #fff; }
.calc__share-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
@media (max-width: 520px) {
  .calc__share-btn { width: 100%; justify-content: center; }
}
.calc__hint { font-size: 12.5px; color: var(--text-muted); margin-top: 14px; }
.calc__full { display: flex; justify-content: space-between; gap: 16px; font-size: 14.5px; color: var(--text-muted); flex-wrap: wrap; margin-top: 10px; }
.calc__full strong { color: var(--text-muted); font-weight: 600; text-decoration: line-through; text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.calc__save { display: flex; justify-content: space-between; gap: 16px; font-size: 14.5px; flex-wrap: wrap; margin-top: 8px; }
.calc__save-label { color: var(--accent-deep); font-weight: 600; }
.calc__save-val { color: var(--accent-deep); font-weight: 800; white-space: nowrap; }
.calc__per { font-size: 13.5px; color: var(--text-muted); margin-top: 10px; }

/* нулевая ступень - входной мастер-класс */
.calc__mc {
  border: 1.5px solid var(--accent); border-radius: var(--radius); padding: 20px;
  background: #FFF6F2; margin-bottom: 18px;
  display: grid; grid-template-columns: 1fr; gap: 16px; align-items: start;
}
@media (min-width: 860px) { .calc__mc { grid-template-columns: 1.35fr .8fr .8fr; } }
.calc__mc.off { opacity: .5; border-color: var(--border); background: var(--bg-soft); }
.calc__mc.off .calc__input { pointer-events: none; background: var(--bg-soft); }
.calc__mc-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; margin-top: 8px; }

/* охват и цена на человека */
.calc__reach {
  margin-top: 20px; border: 1.5px solid var(--accent); border-radius: var(--radius);
  background: #FFF6F2; padding: 22px 24px;
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 720px) { .calc__reach { grid-template-columns: 1fr 1fr; } }
.calc__reach-item { display: flex; flex-direction: column; gap: 4px; }
.calc__reach-label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.calc__reach-val { font-size: clamp(26px, 3vw, 34px); font-weight: 800; letter-spacing: -.02em; color: var(--text-primary); }
.calc__reach-val--accent { color: var(--accent); }
.calc__reach-note { font-size: 12.5px; color: var(--text-muted); line-height: 1.45; }

/* 28.09.2026: практикум с экспертом по задачам (x/xn) и скрываемый мастер-класс (mc=hide) */
.calc__x {
  border: 1.5px solid var(--border); border-radius: var(--radius); padding: 20px;
  margin: 18px 0 8px;
  display: grid; grid-template-columns: 1fr; gap: 16px; align-items: start;
}
@media (min-width: 860px) { .calc__x { grid-template-columns: 1.35fr .8fr .8fr; } }
.calc__x[hidden], .calc__mc[hidden], .calc__add[hidden] { display: none; }
.calc__add {
  display: block; width: 100%; margin: 14px 0 4px; padding: 14px 16px;
  border: 1.5px dashed var(--border); border-radius: var(--radius); background: transparent;
  font: inherit; font-size: 14px; font-weight: 600; color: var(--accent); cursor: pointer; text-align: left;
}
.calc__add:hover { border-color: var(--accent); background: #FFF6F2; }
.calc__mini {
  margin-top: 10px; padding: 0; border: 0; background: none; font: inherit; font-size: 12.5px;
  color: var(--text-muted); text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
}
.calc__mini:hover { color: var(--accent); }
.calc__x.off { opacity: .45; }
.calc__x.off .calc__input { pointer-events: none; background: var(--bg-soft); }
.calc__x.off .calc__toggle { opacity: 1; }
.calc__toggle--panel { margin: 10px 0 0; }
.calc__hint--costs { margin-top: 6px; color: var(--text-primary); }