.asset-tool {
  min-height: 100vh;
  background: #f7f9fc;
  color: var(--text, #111827);
  font-family: var(--font-sans, Pretendard, system-ui, sans-serif);
}

.asset-tool__inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.6rem 0 2.5rem;
}

.asset-tool__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.asset-tool__back {
  color: #33506d;
  font-size: 0.82rem;
  font-weight: 800;
  text-decoration: none;
}

.asset-tool__status {
  min-height: 1.2rem;
  color: #64748b;
  font-size: 0.78rem;
  font-weight: 700;
  text-align: right;
}

.asset-tool__hero {
  margin-bottom: 1rem;
  border: 1px solid #dce4ef;
  border-radius: 8px;
  background: #fff;
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.05);
}

.asset-tool__title {
  margin: 0;
  color: #10243f;
  font-family: var(--font-display, "Black Han Sans", sans-serif);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0;
}

.asset-tool__intro {
  margin: 0.35rem 0 0;
  color: #64748b;
  font-size: 0.86rem;
  line-height: 1.6;
}

.asset-tool__controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.75rem;
  border: 1px solid #dce4ef;
  border-radius: 8px;
  background: #fff;
  padding: 0.75rem;
}

.asset-tool__search {
  width: 100%;
  min-height: 2.5rem;
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  padding: 0 0.75rem;
  color: #111827;
  font: inherit;
}

.asset-tool__tabs {
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.asset-tool__tab {
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  background: #fff;
  padding: 0.55rem 0.72rem;
  color: #334155;
  font-size: 0.78rem;
  font-weight: 900;
  cursor: pointer;
}

.asset-tool__tab:hover,
.asset-tool__tab.is-active {
  border-color: #1b6bff;
  background: #eef4ff;
  color: #0f4fcc;
}

.asset-tool__selection {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 2.8rem;
  margin-bottom: 0.75rem;
  border: 1px solid #dce4ef;
  border-radius: 8px;
  background: #fff;
  padding: 0.6rem 0.75rem;
  color: #64748b;
  font-size: 0.8rem;
}

.asset-tool__selection-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.asset-tool__main {
  display: grid;
  gap: 0.65rem;
}

#asset-results.asset-tool__main {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 0.8rem;
}

.asset-column {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  min-width: 0;
  border: 1px solid rgba(207, 216, 230, 0.76);
  border-radius: var(--radius-lg, 10px);
  background: rgba(255, 255, 255, 0.52);
  padding: 0.5rem;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.035);
}

.asset-column__head {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  padding: 0.22rem 0.25rem 0.45rem;
  box-shadow: none;
  backdrop-filter: blur(6px);
}

.asset-column__head strong {
  color: #10243f;
  font-size: 0.86rem;
  font-weight: 900;
}

.asset-column__head span {
  border: 1px solid rgba(207, 216, 230, 0.9);
  border-radius: 999px;
  background: #fff;
  color: #64748b;
  padding: 0.12rem 0.45rem;
  font-size: 0.66rem;
  font-weight: 900;
}

.asset-column__list {
  display: grid;
  gap: 0.5rem;
  min-width: 0;
}

.asset-column__empty {
  margin: 0;
  border: 1px dashed #cfd8e6;
  border-radius: 8px;
  background: #fff;
  padding: 1rem 0.6rem;
  color: #94a3b8;
  font-size: 0.76rem;
  font-weight: 800;
  text-align: center;
}

.asset-card {
  position: relative;
  display: grid;
  grid-template-columns: 4.25rem minmax(0, 1fr);
  gap: 0.72rem;
  min-width: 0;
  border: 1px solid rgba(207, 216, 230, 0.82);
  border-radius: var(--radius, 8px);
  background: #fff;
  padding: 0.62rem;
  box-shadow: 0 5px 14px rgba(17, 24, 39, 0.035);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.asset-card:hover,
.asset-card:focus-within {
  border-color: rgba(27, 107, 255, 0.28);
  box-shadow: 0 10px 22px rgba(17, 24, 39, 0.07);
  transform: translateY(-1px);
}

.asset-card.is-selected {
  border-color: rgba(27, 107, 255, 0.48);
  background: linear-gradient(180deg, #fff, #f8fbff);
}

.asset-card__media {
  position: relative;
  min-width: 0;
}

.asset-card__thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 7px;
  background: linear-gradient(180deg, #f8fafc, #f1f5f9);
  color: #64748b;
  font-size: 0.72rem;
  font-weight: 900;
}

.asset-card__thumb-button {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: zoom-in;
}

.asset-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.asset-card__body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 0.42rem;
}

.asset-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.asset-card__title-wrap {
  display: grid;
  gap: 0.16rem;
  min-width: 0;
}

.asset-card__kind {
  width: fit-content;
  border: 1px solid rgba(27, 107, 255, 0.16);
  border-radius: 4px;
  background: #eef4ff;
  color: #0f4fcc;
  padding: 0.08rem 0.34rem;
  font-size: 0.58rem;
  font-weight: 900;
  line-height: 1.25;
}

.asset-card__title {
  margin: 0;
  overflow: hidden;
  color: #10243f;
  font-size: 0.84rem;
  font-weight: 900;
  line-height: 1.32;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-card__purpose {
  margin: 0;
  border-left: 3px solid rgba(27, 107, 255, 0.5);
  border-radius: 0 6px 6px 0;
  background: rgba(238, 244, 255, 0.56);
  padding: 0.34rem 0.48rem 0.36rem;
  color: #334155;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-line;
}

.asset-card__purpose span {
  display: block;
  margin: 0 0 0.12rem;
  color: #1b6bff;
  font-size: 0.58rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.asset-card__select-check {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
}

.asset-card__select-check input {
  width: 0.95rem;
  height: 0.95rem;
  margin: 0;
  accent-color: #1b6bff;
  cursor: pointer;
}

.asset-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.28rem;
  margin-top: 0.16rem;
  padding-top: 0;
}

.asset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.8rem;
  border: 1px solid rgba(207, 216, 230, 0.92);
  border-radius: 5px;
  background: #fff;
  padding: 0.3rem 0.48rem;
  color: #334155;
  font-size: 0.66rem;
  font-weight: 900;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.asset-btn:hover {
  border-color: #1b6bff;
  background: #f8fbff;
  color: #0f4fcc;
}

.asset-btn--primary {
  border-color: #1b6bff;
  background: #1b6bff;
  color: #fff;
}

.asset-btn--primary:hover {
  color: #fff;
}

.asset-btn--link {
  border-color: rgba(27, 107, 255, 0.2);
  background: #eef4ff;
  color: #0f4fcc;
}

.asset-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.asset-empty {
  border: 1px dashed #cfd8e6;
  border-radius: 8px;
  background: #fff;
  padding: 1.2rem;
  color: #64748b;
  font-size: 0.86rem;
  text-align: center;
}

.asset-upload-tool {
  border: 1px solid #dce4ef;
  border-radius: 8px;
  background: #fff;
  padding: 1rem;
  box-shadow: 0 4px 14px rgba(17, 24, 39, 0.04);
}

.asset-upload-tool__drop {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 15rem;
  overflow: hidden;
  border: 1px dashed #9fb5d1;
  border-radius: 8px;
  background: #f8fbff;
  color: #64748b;
  font-weight: 900;
  text-align: center;
}

.asset-upload-tool__drop img {
  display: block;
  width: 100%;
  max-height: 18rem;
  object-fit: contain;
}

.asset-upload-tool__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: end;
  margin-top: 0.75rem;
}

.asset-upload-tool label {
  display: grid;
  gap: 0.25rem;
  color: #475569;
  font-size: 0.74rem;
  font-weight: 900;
}

.asset-upload-tool input {
  min-height: 2.45rem;
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  padding: 0 0.65rem;
  font: inherit;
}

.asset-upload-tool__actions,
.asset-upload-tool__result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.asset-upload-tool__result {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
  border: 1px solid #d7e3f8;
  border-radius: 8px;
  background: #f8fbff;
  padding: 0.75rem;
}

.asset-upload-tool__result code,
.asset-upload-tool__result a {
  overflow: hidden;
  color: #0f4fcc;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-preview {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.asset-preview__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(15, 23, 42, 0.68);
  cursor: zoom-out;
}

.asset-preview__frame {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.65rem;
  width: min(92vw, 920px);
  max-height: 88vh;
  margin: 0;
  border: 1px solid rgba(226, 232, 240, 0.7);
  border-radius: 8px;
  background: #fff;
  padding: 0.75rem;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.32);
}

.asset-preview__frame img {
  display: block;
  width: 100%;
  max-height: calc(88vh - 5.4rem);
  object-fit: contain;
  border-radius: 6px;
  background: #f8fafc;
}

.asset-preview__frame figcaption {
  color: #334155;
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.4;
}

.asset-preview__frame--text {
  gap: 0;
  width: min(92vw, 720px);
  max-height: min(88vh, 760px);
  overflow: hidden;
  border-color: rgba(27, 107, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(238, 244, 255, 0.74), rgba(255, 255, 255, 0) 7rem),
    #fff;
  padding: 1.35rem 1.45rem 1.2rem;
}

.asset-preview__eyebrow {
  width: fit-content;
  border: 1px solid rgba(27, 107, 255, 0.18);
  border-radius: 4px;
  background: #eef4ff;
  color: #0f4fcc;
  padding: 0.12rem 0.42rem;
  font-size: 0.64rem;
  font-weight: 900;
  line-height: 1.25;
}

.asset-preview__frame--text h2 {
  margin: 0.55rem 2.7rem 0.75rem 0;
  color: #10243f;
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: 0;
}

.asset-preview__text-body {
  max-height: min(54vh, 460px);
  overflow: auto;
  border: 1px solid rgba(207, 216, 230, 0.92);
  border-radius: var(--radius, 8px);
  background: rgba(255, 255, 255, 0.88);
  padding: 1rem;
  color: #1f2937;
  font-size: 0.92rem;
  font-weight: 650;
  line-height: 1.75;
  white-space: pre-wrap;
  scrollbar-gutter: stable;
  box-shadow: inset 3px 0 0 #1b6bff;
}

.asset-preview__source {
  margin: 0.75rem 0 0;
  border-top: 1px dashed #cfd8e6;
  padding-top: 0.7rem;
  color: #64748b;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.5;
}

.asset-preview__key {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin-top: 0.65rem;
  overflow: hidden;
  border: 1px solid #d8e2f2;
  border-radius: 5px;
  background: #f8fbff;
  padding: 0.28rem 0.45rem;
  color: #0f4fcc;
  font-size: 0.72rem;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-preview__close {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  background: #fff;
  padding: 0.35rem 0.55rem;
  color: #334155;
  font-size: 0.72rem;
  font-weight: 900;
  cursor: pointer;
}

@media (max-width: 760px) {
  .asset-tool__inner {
    width: min(100% - 1rem, 1180px);
    padding-top: 1rem;
  }

  .asset-tool__topbar,
  .asset-tool__selection {
    align-items: stretch;
    flex-direction: column;
  }

  .asset-card__head {
    align-items: flex-start;
    flex-direction: row;
  }

  .asset-tool__status {
    text-align: left;
  }

  .asset-tool__controls,
  .asset-upload-tool__grid {
    grid-template-columns: 1fr;
  }

  #asset-results.asset-tool__main {
    grid-template-columns: 1fr;
  }

  .asset-column__head {
    position: static;
  }

  .asset-card {
    grid-template-columns: 4.8rem minmax(0, 1fr);
  }

  .asset-card__thumb {
    width: 100%;
  }
}