.kzzr {
  --kzzr-accent: #3d8fe6;
  --kzzr-btn: #2170c9;
  --kzzr-btn-hover: #185a9f;
  --kzzr-dark: #0f1722;
  --kzzr-text: #111;
  --kzzr-muted: #4a5566;
  --kzzr-line: #c8dcf3;
  --kzzr-soft: #f5f8fc;
  --kzzr-was: #8b97a8;
  --kzzr-fuel: #5b6472;
  box-sizing: border-box;
  margin: 8px 0 36px;
  color: var(--kzzr-text);
  font-size: 16px;
  line-height: 1.45;
}
.kzzr *, .kzzr *::before, .kzzr *::after { box-sizing: border-box; }
.kzzr p { margin: 0; }

.kzzr-head { margin-bottom: 18px; }
.kzzr-title { font-size: 24px; font-weight: 700; line-height: 1.2; margin-bottom: 8px !important; }
.kzzr-lead { color: var(--kzzr-muted); max-width: 760px; }

.kzzr-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 760px) {
  .kzzr-grid { grid-template-columns: 1fr 1fr; }
  .kzzr-card-wide { grid-column: 1 / -1; }
}
.kzzr-card {
  background: var(--kzzr-soft);
  border: 1px solid var(--kzzr-line);
  border-radius: 8px;
  padding: 18px 18px 16px;
  min-width: 0;
}
.kzzr-step { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; margin-bottom: 14px !important; }
.kzzr-step span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--kzzr-dark); color: #fff; font-size: 14px; flex: 0 0 28px;
}

.kzzr-field { margin: 0 0 14px; padding: 0; border: 0; min-width: 0; }
.kzzr-field:last-child { margin-bottom: 0; }
.kzzr-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; padding: 0; color: var(--kzzr-text); }
.kzzr-label b { color: var(--kzzr-btn); }
.kzzr-hint { font-size: 13px; color: var(--kzzr-muted); margin-top: 6px !important; }

.kzzr-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.kzzr-cols:last-child { margin-bottom: 0; }
.kzzr-cols .kzzr-field { margin-bottom: 0; }
@media (min-width: 760px) { .kzzr-cols-3 { grid-template-columns: 1fr 1.3fr 1.3fr; } }
@media (max-width: 759px) { .kzzr-cols-3 { grid-template-columns: 1fr; } }

.kzzr-input {
  width: 100%; min-height: 44px; padding: 8px 10px;
  border: 1px solid #a9c3e2; border-radius: 6px; background: #fff;
  font: inherit; color: var(--kzzr-text);
}
.kzzr-select { appearance: auto; }
.kzzr-unit { display: flex; align-items: stretch; }
.kzzr-unit .kzzr-input { border-radius: 6px 0 0 6px; min-width: 0; }
.kzzr-unit span {
  display: flex; align-items: center; padding: 0 9px;
  border: 1px solid #a9c3e2; border-left: 0; border-radius: 0 6px 6px 0;
  background: #e9f1fa; font-size: 12px; color: var(--kzzr-muted); white-space: nowrap;
}
.kzzr-input:focus-visible, .kzzr-range:focus-visible, .kzzr-check input:focus-visible {
  outline: 3px solid var(--kzzr-accent); outline-offset: 2px;
}

.kzzr-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.kzzr-chip { position: relative; flex: 1 1 auto; }
.kzzr-chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.kzzr-chip span {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  min-height: 44px; padding: 6px 12px; border: 1px solid #a9c3e2; border-radius: 6px;
  background: #fff; font-size: 14px; font-weight: 600; line-height: 1.2; cursor: pointer; color: var(--kzzr-text);
}
.kzzr-chip small { display: block; font-size: 12px; font-weight: 400; color: var(--kzzr-muted); margin-top: 2px; }
.kzzr-chip input:checked + span { background: var(--kzzr-btn); border-color: var(--kzzr-btn); color: #fff; }
.kzzr-chip input:checked + span small { color: #dbe8f8; }
.kzzr-chip input:focus-visible + span { outline: 3px solid var(--kzzr-accent); outline-offset: 2px; }
.kzzr-chip span:hover { border-color: var(--kzzr-btn); }

.kzzr-check { display: flex; align-items: center; gap: 10px; min-height: 44px; font-size: 14px; cursor: pointer; }
.kzzr-check input { width: 20px; height: 20px; flex: 0 0 20px; accent-color: var(--kzzr-btn); margin: 0; }

.kzzr-range {
  --kzzr-fill: 50%;
  -webkit-appearance: none; appearance: none; width: 100%; height: 44px; background: transparent; margin: 0; cursor: pointer;
}
.kzzr-range::-webkit-slider-runnable-track {
  height: 6px; border-radius: 3px;
  background: linear-gradient(to right, var(--kzzr-btn) var(--kzzr-fill), #c9d6e6 var(--kzzr-fill));
}
.kzzr-range::-moz-range-track { height: 6px; border-radius: 3px; background: #c9d6e6; }
.kzzr-range::-moz-range-progress { height: 6px; border-radius: 3px; background: var(--kzzr-btn); }
.kzzr-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 24px; height: 24px; margin-top: -9px; border-radius: 50%;
  background: #fff; border: 3px solid var(--kzzr-btn);
}
.kzzr-range::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--kzzr-btn); }

/* Результат */
.kzzr-result {
  margin-top: 18px; padding: 20px 18px; border-radius: 8px;
  background: #fff; border: 2px solid var(--kzzr-dark);
  scroll-margin-top: 90px;
}
.kzzr-rtitle { font-size: 17px; font-weight: 700; margin: 22px 0 10px !important; }
.kzzr-batt .kzzr-rtitle, .kzzr-result > .kzzr-rtitle:first-child { margin-top: 0 !important; }

.kzzr-batt-svg { display: block; width: 100%; height: auto; max-width: 680px; }
.kzzr-b-shell { fill: #fff; stroke: var(--kzzr-dark); stroke-width: 3; }
.kzzr-b-nub { fill: var(--kzzr-dark); }
.kzzr-b-was { fill: var(--kzzr-was); }
.kzzr-b-add { fill: var(--kzzr-accent); }
.kzzr-b-80 { stroke: var(--kzzr-dark); stroke-width: 2; stroke-dasharray: 5 4; }
.kzzr-b-lbl { font-size: 14px; fill: var(--kzzr-muted); }
.kzzr-b-in { font-size: 17px; font-weight: 700; fill: #fff; dominant-baseline: middle; }
.kzzr-b-in-out { fill: var(--kzzr-dark); text-anchor: start; }
@media (prefers-reduced-motion: no-preference) {
  .kzzr-b-was, .kzzr-b-add { transition: width .25s ease, x .25s ease; }
  .kzzr-row-bar i { transition: width .25s ease; }
}
.kzzr-batt-sum { margin-top: 8px !important; font-size: 16px; }
.kzzr-batt-sum b { font-size: 19px; }
.kzzr-batt-sum span { color: var(--kzzr-muted); font-size: 14px; }

.kzzr-rows { display: grid; gap: 4px; }
.kzzr-row {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; align-items: center;
  padding: 8px 10px; border-radius: 6px; background: var(--kzzr-soft);
}
.kzzr-row-name b { display: block; font-size: 15px; }
.kzzr-row-name small { display: block; font-size: 12px; color: var(--kzzr-muted); }
.kzzr-row-val { text-align: right; white-space: nowrap; }
.kzzr-row-val b { font-size: 18px; }
.kzzr-row-time { display: inline-block; margin-right: 12px; font-size: 14px; color: var(--kzzr-muted); }
.kzzr-row-bar { grid-column: 1 / -1; height: 8px; border-radius: 4px; background: #e2eaf4; overflow: hidden; }
.kzzr-row-bar i { display: block; height: 100%; background: var(--kzzr-accent); border-radius: 4px; }
.kzzr-row-on { background: #e4effb; box-shadow: inset 3px 0 0 var(--kzzr-btn); }
.kzzr-row-fuel .kzzr-row-bar i { background: var(--kzzr-fuel); }
@media (max-width: 480px) {
  .kzzr-row-val { display: flex; flex-direction: column; align-items: flex-end; }
  .kzzr-row-time { margin-right: 0; font-size: 13px; }
}

.kzzr-month { margin-top: 4px; }
.kzzr-save {
  margin-top: 12px !important; padding: 14px 16px; border-radius: 6px;
  background: var(--kzzr-dark); color: #fff; font-size: 17px; font-weight: 700;
}
.kzzr-warn { margin: 18px 0 0; padding: 0; list-style: none; }
.kzzr-warn li {
  position: relative; margin: 0 0 8px; padding: 10px 12px 10px 36px;
  border-radius: 6px; background: #fff7e8; border: 1px solid #f0d9a8; font-size: 14px;
}
.kzzr-warn li::before {
  content: "!"; position: absolute; left: 11px; top: 10px;
  width: 18px; height: 18px; border-radius: 50%; background: #9a6a00; color: #fff;
  font-size: 12px; font-weight: 700; line-height: 18px; text-align: center;
}
.kzzr-note { margin-top: 12px !important; font-size: 13px; color: var(--kzzr-muted); }

.kzzr-sticky {
  position: fixed; left: 8px; right: 8px; bottom: 8px; z-index: 9990;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  min-height: 48px; padding: 8px 14px; border-radius: 8px;
  background: var(--kzzr-dark); color: #fff !important; text-decoration: none !important;
  font-size: 14px; font-weight: 600; box-shadow: 0 4px 16px rgba(0, 0, 0, .25);
}
.kzzr-sticky[hidden] { display: none; }
.kzzr-sticky-more {
  display: inline-flex; align-items: center; justify-content: center; text-align: center;
  min-height: 34px; padding: 0 12px; border-radius: 4px; background: var(--kzzr-btn); white-space: nowrap;
}
.kzzr-sticky:focus-visible { outline: 3px solid var(--kzzr-accent); outline-offset: 2px; }
@media (min-width: 760px) { .kzzr-sticky { display: none !important; } }

/* FAQ під калькулятором */
.kzzr-faq { border: 1px solid var(--kzzr-line, #c8dcf3); border-radius: 6px; margin: 0 0 10px; background: #fff; }
.kzzr-faq summary {
  display: flex; align-items: center; min-height: 48px; padding: 12px 44px 12px 16px; position: relative;
  font-weight: 700; font-size: 17px; cursor: pointer; list-style: none;
}
.kzzr-faq summary::-webkit-details-marker { display: none; }
.kzzr-faq summary::after {
  content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  font-size: 22px; font-weight: 400; color: #2170c9;
}
.kzzr-faq[open] summary::after { content: "\2212"; }
.kzzr-faq summary:focus-visible { outline: 3px solid #3d8fe6; outline-offset: 2px; }
.kzzr-faq-a { padding: 0 16px 12px; }
@media (max-width: 520px) {
  .kzzr-b-lbl { font-size: 24px; }
  .kzzr-b-in { font-size: 28px; }
  .kzzr-b-80 { stroke-width: 3; }
}