/* CSS riêng của app: chỉ bố cục. Màu, font lấy từ lớp .saly-* và biến var(--brand-*). */
[hidden] {
  display: none !important;
}

.khung-form,
.khung-ket-qua {
  display: grid;
  gap: var(--space-3);
  margin-block: var(--space-3);
}

.khung-form > *,
.khung-ket-qua > * {
  margin: 0;
}

.form-nhu-cau {
  display: grid;
  gap: var(--space-4);
}

.nhom-chon {
  display: grid;
  gap: var(--space-2);
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.nhom-chon legend {
  font-weight: 700;
  margin-bottom: var(--space-2);
  padding: 0;
}

.luoi-lua-chon {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.lua-chon {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--brand-border);
  border-radius: 12px;
  cursor: pointer;
}

.lua-chon:has(input:checked) {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 1px var(--brand-primary);
}

.lua-chon input {
  width: 20px;
  height: 20px;
  margin: 0;
  flex-shrink: 0;
}

.saly-input {
  font-size: 16px;
  min-height: 48px;
}

.loi-nhap {
  margin: 0;
  color: var(--brand-danger);
  font-weight: 600;
}

.nut-chinh {
  width: 100%;
  min-height: 52px;
}

.trang-thai {
  margin: 0;
  text-align: center;
}

/* Kết quả */
.luoi-mau {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.the-mau {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  min-width: 0;
}

.the-mau > * {
  margin: 0;
}

.nut-anh {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
}

.anh-mau,
.anh-cho {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 12px;
}

.anh-cho {
  display: grid;
  place-items: center;
  padding: var(--space-3);
  text-align: center;
  border: 1px dashed var(--brand-border);
}

.thong-so {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-1) var(--space-3);
  margin: 0;
}

.thong-so dt {
  font-weight: 600;
}

.thong-so dd {
  margin: 0;
}

.nut-the {
  display: grid;
  gap: var(--space-2);
}

.nut-the .saly-btn,
.nut-chung .saly-btn {
  min-height: 48px;
  width: 100%;
  text-align: center;
}

.khung-tu-van {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--brand-border);
  border-radius: 12px;
}

.khung-tu-van > * {
  margin: 0;
}

.nut-chung {
  display: grid;
  gap: var(--space-2);
}

.lien-he-chung {
  display: grid;
  gap: var(--space-2);
}

.lien-he-chung > * {
  margin: 0;
}

.hop-phong-to {
  width: min(96vw, 1200px);
  max-width: 96vw;
  padding: var(--space-2);
  border: 0;
  border-radius: 12px;
}

.hop-phong-to img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
  margin-bottom: var(--space-2);
}

.hop-phong-to .saly-btn {
  width: 100%;
  min-height: 48px;
}

@media (min-width: 480px) {
  .luoi-lua-chon {
    grid-template-columns: 1fr 1fr;
  }

  .nut-chung {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .luoi-mau {
    grid-template-columns: 1fr 1fr;
  }

  .nut-chinh {
    width: auto;
    justify-self: start;
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .luoi-mau {
    grid-template-columns: repeat(3, 1fr);
  }

  .luoi-lua-chon {
    grid-template-columns: repeat(3, 1fr);
  }
}