:root {
  --kc-nav-cream: rgba(255, 252, 246, 0.84);
  --kc-nav-white: rgba(255, 255, 255, 0.78);
  --kc-nav-line: rgba(198, 169, 111, 0.28);
  --kc-nav-gold: #b98a3c;
  --kc-nav-blue: #8faeb8;
  --kc-nav-pink: #d9a3ad;
  --kc-nav-lavender: #b7a8d8;
  --kc-nav-text: #2c2822;
  --kc-nav-muted: #796f62;
}

body.kc-has-bottom-nav {
  padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
}

body.kc-has-bottom-nav main,
body.kc-has-bottom-nav .app-shell,
body.kc-has-bottom-nav .recipe-app {
  padding-bottom: max(112px, calc(88px + env(safe-area-inset-bottom, 0px)));
}

body.kc-has-bottom-nav .tabs {
  bottom: max(96px, calc(88px + env(safe-area-inset-bottom, 0px))) !important;
}

.kc-bottom-nav {
  position: fixed;
  z-index: 9999;
  left: 50%;
  bottom: max(10px, env(safe-area-inset-bottom, 0px));
  width: min(94vw, 520px);
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--kc-nav-line);
  border-radius: 26px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(250, 244, 233, 0.7)),
    var(--kc-nav-cream);
  box-shadow:
    0 18px 44px rgba(48, 39, 24, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px) saturate(1.18);
  -webkit-backdrop-filter: blur(18px) saturate(1.18);
}

.kc-bottom-nav::before {
  content: "";
  position: absolute;
  inset: 6px;
  z-index: -1;
  border-radius: 21px;
  background:
    radial-gradient(circle at 18% 20%, rgba(217, 163, 173, 0.20), transparent 34%),
    radial-gradient(circle at 78% 20%, rgba(143, 174, 184, 0.22), transparent 38%),
    radial-gradient(circle at 50% 100%, rgba(185, 138, 60, 0.16), transparent 44%);
}

.kc-bottom-nav__button {
  appearance: none;
  min-width: 0;
  min-height: 58px;
  border: 0;
  border-radius: 20px;
  display: grid;
  place-items: center;
  gap: 2px;
  padding: 7px 4px 6px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--kc-nav-text);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform 150ms ease, background 150ms ease, box-shadow 150ms ease;
}

.kc-bottom-nav__button:active {
  transform: scale(0.94);
}

.kc-bottom-nav__button.is-disabled,
.kc-bottom-nav__button:disabled {
  cursor: default;
  opacity: 0;
  pointer-events: none;
}

.kc-bottom-nav.is-locked .kc-bottom-nav__button:disabled {
  cursor: wait;
  opacity: 0.42;
  pointer-events: none;
}

.kc-bottom-nav__button:hover,
.kc-bottom-nav__button:focus-visible {
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 0 0 1px rgba(185, 138, 60, 0.18);
  outline: none;
}

.kc-bottom-nav__icon {
  width: 29px;
  height: 29px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  color: #201c17;
  font-size: 17px;
  font-weight: 800;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(244, 235, 218, 0.72));
  box-shadow:
    0 7px 16px rgba(68, 54, 30, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
}

.kc-bottom-nav__button:nth-child(2) .kc-bottom-nav__icon {
  color: #9c7334;
}

.kc-bottom-nav__button:nth-child(3) .kc-bottom-nav__icon {
  color: #668d9a;
}

.kc-bottom-nav__button:nth-child(4) .kc-bottom-nav__icon {
  color: #987fc4;
}

.kc-bottom-nav__label {
  display: block;
  max-width: 100%;
  color: var(--kc-nav-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

@media (min-width: 760px) {
  .kc-bottom-nav {
    bottom: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kc-bottom-nav__button {
    transition: none;
  }
}

/* 2026-07-12: smaller shared navigation */
body.kc-has-bottom-nav {
  padding-bottom: calc(78px + env(safe-area-inset-bottom, 0px));
}
body.kc-has-bottom-nav main,
body.kc-has-bottom-nav .app-shell,
body.kc-has-bottom-nav .recipe-app {
  padding-bottom: max(92px, calc(78px + env(safe-area-inset-bottom, 0px)));
}
body.kc-has-bottom-nav .tabs {
  bottom: max(84px, calc(78px + env(safe-area-inset-bottom, 0px))) !important;
}
.kc-bottom-nav {
  width: min(92vw, 480px);
  gap: 4px;
  padding: 6px;
  border-radius: 22px;
}
.kc-bottom-nav::before { inset: 5px; border-radius: 18px; }
.kc-bottom-nav__button {
  min-height: 48px;
  border-radius: 16px;
  padding: 5px 3px 4px;
}
.kc-bottom-nav__icon {
  width: 22px;
  height: 22px;
  border-radius: 10px;
  font-size: 14px;
}
.kc-bottom-nav__label { font-size: 11px; }