:root {
  --kkf-text: #1f2937;
  --kkf-muted: #6b7280;
  --kkf-border: #e5e7eb;
  --kkf-shadow: 0 18px 45px rgba(0, 0, 0, 0.15);
  --kkf-bg: #ffffff;
  --kkf-link: #c2410c;
  --kkf-focus: #2563eb;
}

.kkf-help {
  position: relative;
  display: inline-flex;
  align-items: center;
}

/* Text + icon "link" */
.kkf-help__trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--kkf-link);
  cursor: pointer;
  font: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  white-space: nowrap;
}

.kkf-help__trigger:hover {
  filter: brightness(0.9);
}

.kkf-help__trigger:focus-visible {
  outline: 2px solid var(--kkf-focus);
  outline-offset: 3px;
  border-radius: 8px;
}

.kkf-help__icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  flex: 0 0 auto;
}

.kkf-help__icon svg {
  display: block;
  width: 18px;
  height: 18px;
}

/* Popover (JS positions via fixed coords) */
.kkf-help__popover {
  position: fixed;
  top: 0;
  left: 0;
  width: min(360px, calc(100vw - 24px));
  padding: 12px 12px 10px;
  background: var(--kkf-bg);
  border: 1px solid var(--kkf-border);
  border-radius: 12px;
  box-shadow: var(--kkf-shadow);
  z-index: 999999;

  --kkf-shift: 6px;
  --kkf-arrow-x: 28px;

  opacity: 0;
  transform: translateY(var(--kkf-shift)) scale(0.98);
  transform-origin: top;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 0ms linear 140ms;
}

.kkf-help[data-open="true"] .kkf-help__popover {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
  visibility: visible;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 0ms linear 0ms;
}

/* Arrow */
.kkf-help__popover::before {
  content: "";
  position: absolute;
  left: var(--kkf-arrow-x);
  top: -8px;
  width: 16px;
  height: 16px;
  background: var(--kkf-bg);
  border: 1px solid var(--kkf-border);
  border-right: 0;
  border-bottom: 0;
  transform: translateX(-50%) rotate(45deg);
}

.kkf-help__popover[data-placement="top"] {
  --kkf-shift: -6px;
  transform-origin: bottom;
}

.kkf-help__popover[data-placement="top"]::before {
  top: auto;
  bottom: -8px;
  border-left: 0;
  border-top: 0;
  border-right: 1px solid var(--kkf-border);
  border-bottom: 1px solid var(--kkf-border);
}

.kkf-help__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.kkf-help__heading {
  font-weight: 800;
  font-size: 14px;
  margin: 0;
  white-space: nowrap;
  color: var(--kkf-text);
}

.kkf-help__close {
  border: 1px solid var(--kkf-border);
  background: #fff;
  color: var(--kkf-muted);
  border-radius: 10px;
  width: 32px;
  height: 32px;
  line-height: 1;
  cursor: pointer;
  flex: 0 0 auto;
  font-size: 18px;
}

.kkf-help__close:hover {
  filter: brightness(0.97);
}

.kkf-help__close:focus-visible {
  outline: 2px solid var(--kkf-focus);
  outline-offset: 3px;
}

.kkf-help__list {
  margin: 0;
  padding-left: 18px;
  text-align: left;
}

.kkf-help__list li {
  margin: 6px 0;
  line-height: 1.25;
}

.kkf-help__list a {
  color: var(--kkf-link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .kkf-help__popover,
  .kkf-help[data-open="true"] .kkf-help__popover {
    transition: none;
    transform: none;
  }
}

/* =========================================
   MAX BID TOOLTIP (Right of Bid Button)
========================================= */

.kkf-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
}

/* Small circular trigger icon */
.kkf-tip__trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid var(--kkf-border);
  background: var(--kkf-bg);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  color: var(--kkf-link);
  transition: border-color 120ms ease, background 120ms ease;
}

.kkf-tip__trigger:hover {
  border-color: var(--kkf-link);
  background: #fff7ed; /* subtle warm hover */
}

.kkf-tip__trigger:focus-visible {
  outline: 2px solid var(--kkf-focus);
  outline-offset: 3px;
}

.kkf-tip__icon {
  width: 18px;
  height: 18px;
  display: inline-block;
}

.kkf-tip__icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* Popover */
.kkf-tip__popover {
  position: fixed;
  top: 0;
  left: 0;
  width: min(360px, calc(100vw - 24px));
  padding: 14px 14px 12px;
  background: var(--kkf-bg);
  border: 1px solid var(--kkf-border);
  border-radius: 14px;
  box-shadow: var(--kkf-shadow);
  z-index: 999999;

  --kkf-shift: 6px;
  --kkf-arrow-x: 28px;

  opacity: 0;
  transform: translateY(var(--kkf-shift)) scale(0.98);
  transform-origin: top;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 0ms linear 140ms;
}

.kkf-tip[data-open="true"] .kkf-tip__popover {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
  visibility: visible;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 0ms linear 0ms;
}

/* Arrow */
.kkf-tip__popover::before {
  content: "";
  position: absolute;
  left: var(--kkf-arrow-x);
  top: -8px;
  width: 16px;
  height: 16px;
  background: var(--kkf-bg);
  border: 1px solid var(--kkf-border);
  border-right: 0;
  border-bottom: 0;
  transform: translateX(-50%) rotate(45deg);
}

.kkf-tip__popover[data-placement="top"] {
  --kkf-shift: -6px;
  transform-origin: bottom;
}

.kkf-tip__popover[data-placement="top"]::before {
  top: auto;
  bottom: -8px;
  border-left: 0;
  border-top: 0;
  border-right: 1px solid var(--kkf-border);
  border-bottom: 1px solid var(--kkf-border);
}

/* Header */
.kkf-tip__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.kkf-tip__heading {
  font-weight: 800;
  font-size: 14px;
  color: var(--kkf-text);
}

.kkf-tip__close {
  border: 1px solid var(--kkf-border);
  background: #fff;
  color: var(--kkf-muted);
  border-radius: 10px;
  width: 32px;
  height: 32px;
  line-height: 1;
  cursor: pointer;
  font-size: 18px;
}

.kkf-tip__close:hover {
  filter: brightness(0.97);
}

/* Body */
.kkf-tip__body {
  font-size: 13px;
  line-height: 1.4;
  color: var(--kkf-text);
}

.kkf-tip__bullets {
  margin: 0 0 12px 18px;
  padding: 0;
}

.kkf-tip__bullets li {
  margin: 6px 0;
}

.kkf-tip__links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.kkf-tip__links a {
  color: var(--kkf-link);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .kkf-tip__popover,
  .kkf-tip[data-open="true"] .kkf-tip__popover {
    transition: none;
    transform: none;
  }
}