/* ============================================================
   lotabin — AI UGC homepage promotion
   A persistent, non-modal invitation anchored to the viewport.
   ============================================================ */

.ugc-promo[hidden],
.ugc-route-loader[hidden] {
  display: none;
}

.ugc-promo {
  position: fixed;
  z-index: calc(var(--z-sticky) - 1);
  left: 50%;
  bottom: max(18px, env(safe-area-inset-bottom));
  width: min(1180px, calc(100vw - 32px));
  color: var(--sumi);
  opacity: 0;
  transform: translate(-50%, 22px) scale(.99);
  transition:
    opacity 420ms var(--e-out),
    transform 520ms var(--e-out);
  filter: drop-shadow(0 18px 34px rgba(9, 15, 10, .22));
}

.ugc-promo.is-visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.ugc-promo.is-leaving {
  opacity: 0;
  transform: translate(-50%, 16px) scale(.99);
  pointer-events: none;
}

.ugc-promo__surface {
  position: relative;
  min-height: 94px;
  display: grid;
  grid-template-columns: minmax(330px, .92fr) minmax(280px, 1fr) auto;
  align-items: center;
  gap: clamp(24px, 3.4vw, 52px);
  padding: 17px 70px 17px 24px;
  overflow: hidden;
  border: 1px solid rgba(24, 32, 25, .18);
  border-radius: 14px;
  background:
    linear-gradient(96deg, #f6f1e7 0%, #f6f1e7 62%, #e8edca 100%);
  color: var(--sumi);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .72),
    inset 0 -3px 0 rgba(184, 203, 106, .58);
}

.ugc-promo__surface::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  pointer-events: none;
  background: var(--sprout);
}

.ugc-promo__intro,
.ugc-promo__body,
.ugc-promo__action {
  position: relative;
  z-index: 1;
}

.ugc-promo__intro {
  min-width: 0;
}

.ugc-promo__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 1.4rem + 1.15vw, 2.55rem);
  font-weight: 700;
  line-height: .92;
  letter-spacing: -.03em;
  white-space: nowrap;
}

.ugc-promo__title em {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--moss);
}

.ugc-promo__body {
  max-width: 47ch;
  margin: 0;
  color: var(--warm-stone);
  font-size: .78rem;
  line-height: 1.5;
}

.ugc-promo__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid var(--sumi);
  border-radius: 999px;
  background: var(--sumi);
  color: var(--rice-paper);
  font-family: var(--font-mono);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
  transition:
    color var(--d-fast) var(--e-out),
    background-color var(--d-fast) var(--e-out),
    transform var(--d-fast) var(--e-out);
}

.ugc-promo__action svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  transition: transform var(--d-fast) var(--e-out);
}

.ugc-promo__action:hover {
  color: var(--sumi);
  border-color: var(--sprout);
  background: var(--sprout);
  transform: translateY(-2px);
}

.ugc-promo__action:hover svg {
  transform: translateX(3px);
}

.ugc-promo__action:focus-visible,
.ugc-promo__close:focus-visible {
  outline: 3px solid var(--moss);
  outline-offset: 3px;
}

.ugc-promo__close {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: 14px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--sumi);
  cursor: pointer;
  opacity: .62;
  transform: translateY(-50%);
  transition:
    opacity var(--d-fast) var(--e-out),
    background-color var(--d-fast) var(--e-out),
    transform var(--d-fast) var(--e-out);
}

.ugc-promo__close:hover {
  opacity: 1;
  background: rgba(24, 32, 25, .07);
  transform: translateY(-50%) rotate(4deg);
}

.ugc-promo__close svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

/* A short bridge between the homepage invitation and the destination loader. */
.ugc-route-loader {
  --ugc-route-surface: #43514c;
  --ugc-route-highlight: rgba(113, 133, 125, .42);
  --ugc-route-shadow: rgba(15, 24, 20, .62);
  position: fixed;
  z-index: calc(var(--z-toast) + 400);
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 43%, rgba(246, 241, 231, .07), transparent 27%),
    radial-gradient(circle at 17% 8%, rgba(200, 218, 120, .045), transparent 26%),
    linear-gradient(145deg, #485751, #3e4b46 68%, #39453f);
  color: var(--rice-paper);
  opacity: 0;
  transition: opacity 280ms var(--e-out);
}

.ugc-route-loader.is-active {
  opacity: 1;
}

.ugc-route-loader__inner {
  display: grid;
  justify-items: center;
  gap: 26px;
  transform: translateY(-1.5vh);
}

.ugc-route-loader__emblem {
  position: relative;
  width: clamp(156px, 14vw, 188px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: 18px;
  border: 1px solid rgba(246, 241, 231, .045);
  border-radius: 42px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .025), rgba(0, 0, 0, .035)),
    var(--ugc-route-surface);
  box-shadow:
    -19px -19px 42px var(--ugc-route-highlight),
    20px 20px 44px var(--ugc-route-shadow),
    inset 1px 1px 0 rgba(255, 255, 255, .065);
  animation: ugcRouteLoaderEmblem 1.9s var(--e-in-out) infinite alternate;
}

.ugc-route-loader__emblem::after {
  content: "";
  position: absolute;
  inset: 9px;
  pointer-events: none;
  border: 1px solid rgba(246, 241, 231, .045);
  border-radius: 35px;
}

.ugc-route-loader__well {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 8px;
  border-radius: 29px;
  background: #414e49;
  box-shadow:
    inset 10px 10px 22px rgba(15, 23, 20, .62),
    inset -10px -10px 22px rgba(103, 122, 114, .37);
}

.ugc-route-loader__well img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 22px;
  object-fit: cover;
  opacity: .9;
  filter:
    grayscale(1)
    contrast(1.08)
    drop-shadow(5px 7px 8px rgba(8, 12, 10, .34));
  box-shadow:
    -3px -3px 7px rgba(246, 241, 231, .11),
    5px 6px 11px rgba(9, 14, 12, .38);
}

.ugc-route-loader__caption {
  display: grid;
  justify-items: center;
  gap: 8px;
  text-align: center;
}

.ugc-route-loader__caption strong {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .035em;
}

.ugc-route-loader__caption p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .58rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, .58);
}

.ugc-route-loader__line {
  width: 164px;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #414e49;
  box-shadow:
    inset 2px 2px 4px rgba(15, 23, 20, .58),
    inset -2px -2px 4px rgba(105, 124, 116, .27);
}

.ugc-route-loader__line span {
  display: block;
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #b9ce68, var(--sprout));
  box-shadow: 0 0 10px rgba(200, 218, 120, .36);
  animation: ugcRouteLoaderLine 900ms var(--e-in-out) infinite alternate;
}

@keyframes ugcRouteLoaderEmblem {
  from {
    transform: translateY(1px) scale(.992);
    box-shadow:
      -17px -17px 38px rgba(113, 133, 125, .36),
      18px 18px 40px rgba(15, 24, 20, .58),
      inset 1px 1px 0 rgba(255, 255, 255, .06);
  }
  to {
    transform: translateY(-3px) scale(1);
    box-shadow:
      -22px -22px 48px rgba(113, 133, 125, .46),
      24px 24px 50px rgba(15, 24, 20, .66),
      inset 1px 1px 0 rgba(255, 255, 255, .075);
  }
}

@keyframes ugcRouteLoaderLine {
  from { transform: translateX(-100%); }
  to { transform: translateX(220%); }
}

@media (max-width: 960px) {
  .ugc-promo__surface {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    row-gap: 8px;
  }

  .ugc-promo__intro {
    grid-column: 1;
    grid-row: 1;
  }

  .ugc-promo__body {
    grid-column: 1;
    grid-row: 2;
  }

  .ugc-promo__action {
    grid-column: 2;
    grid-row: 1 / 3;
  }
}

@media (max-width: 680px) {
  .ugc-promo {
    width: calc(100vw - 20px);
    bottom: max(10px, env(safe-area-inset-bottom));
    filter: drop-shadow(0 10px 22px rgba(9, 15, 10, .18));
  }

  .ugc-promo__surface {
    min-height: 82px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
    gap: 0;
    padding: 14px 86px 14px 19px;
    border-radius: 12px;
    cursor: pointer;
  }

  .ugc-promo__title {
    max-width: none;
    font-size: clamp(1.55rem, 7.1vw, 1.95rem);
    line-height: .96;
    white-space: normal;
  }

  .ugc-promo__body {
    display: none;
  }

  .ugc-promo__action {
    position: absolute;
    z-index: 2;
    inset: 0;
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: inherit;
    background: transparent;
    color: var(--moss);
    font-size: 0;
    transition: background-color var(--d-fast) var(--e-out);
  }

  .ugc-promo__action span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .ugc-promo__action svg {
    position: absolute;
    top: 50%;
    right: 51px;
    width: 19px;
    height: 19px;
    transform: translateY(-50%);
  }

  .ugc-promo__action:hover {
    border-color: transparent;
    background: rgba(184, 203, 106, .12);
    color: var(--sumi);
    transform: none;
  }

  .ugc-promo__action:hover svg {
    transform: translate(2px, -50%);
  }

  .ugc-promo__action:focus-visible {
    outline-offset: -5px;
  }

  .ugc-promo__close {
    z-index: 3;
    top: 50%;
    right: 8px;
    width: 40px;
    height: 40px;
    transform: translateY(-50%);
  }

  .ugc-promo__close:hover {
    transform: translateY(-50%) rotate(4deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ugc-promo,
  .ugc-promo__action,
  .ugc-promo__action svg,
  .ugc-promo__close,
  .ugc-route-loader {
    transition-duration: 1ms !important;
  }

  .ugc-route-loader__emblem,
  .ugc-route-loader__line span {
    animation: none !important;
  }

  .ugc-promo {
    transform: translate(-50%, 0);
  }
}