*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #ffffff;
  --color-text: #000000;
  --color-muted: #666666;
  --font-logo: "Courier Prime", "Courier New", monospace;
  --logo-width: 168px;
  --logo-height: 56px;
  --header-gallery-gap: clamp(2rem, 5vw, 3.5rem);
  --gallery-gap: clamp(2rem, 5vw, 4rem);
  --photo-width-desktop: clamp(160px, 18vw, 240px);
  --photo-width-mobile: min(72vw, 280px);
  --offset-sm: clamp(2rem, 5vw, 4rem);
  --offset-md: clamp(3rem, 8vw, 6rem);
  --offset-lg: clamp(4rem, 10vw, 8rem);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-logo);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
}

.gallery__item img,
.model-page__photo img {
  max-width: 100%;
  height: auto;
}

/* ── Logo ── */

.site-header {
  display: flex;
  justify-content: center;
  padding: clamp(0.85rem, 2vw, 1.5rem) 1.5rem var(--header-gallery-gap);
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo__img {
  width: var(--logo-width);
  height: var(--logo-height);
  max-width: none;
  object-fit: contain;
}

/* ── Gallery (mobile-first) ── */

.gallery {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--gallery-gap);
  padding: 0 1.25rem clamp(4rem, 10vw, 6rem);
  max-width: 1200px;
  margin: 0 auto;
}

.gallery__item {
  display: block;
  width: var(--photo-width-mobile);
  transition: opacity 0.2s ease;
}

.gallery__item:hover {
  opacity: 0.85;
}

.gallery__item img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* Mobile: alternating left / right offsets */
.gallery__item--left {
  align-self: flex-start;
}

.gallery__item--right {
  align-self: flex-end;
}

/* ── Desktop grid ── */

@media (min-width: 768px) {
  .gallery {
    display: block;
    padding: 0 clamp(2rem, 6vw, 5rem) clamp(4rem, 8vw, 6rem);
  }

  .gallery__row {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: clamp(2.5rem, 6vw, 5rem);
    margin-bottom: var(--gallery-gap);
  }

  .gallery__row:last-child {
    margin-bottom: 0;
  }

  .gallery__item {
    width: var(--photo-width-desktop);
    align-self: unset;
  }

  /* Row of 2: second photo offset down */
  .gallery__row--2 .gallery__item:nth-child(1) {
    transform: translateY(0);
  }

  .gallery__row--2 .gallery__item:nth-child(2) {
    transform: translateY(var(--offset-md));
  }

  /* Row of 3: middle photo lowest, right between left and middle */
  .gallery__row--3 .gallery__item:nth-child(1) {
    transform: translateY(0);
  }

  .gallery__row--3 .gallery__item:nth-child(2) {
    transform: translateY(var(--offset-lg));
  }

  .gallery__row--3 .gallery__item:nth-child(3) {
    transform: translateY(var(--offset-sm));
  }
}

/* ── Model page placeholder ── */

.model-page {
  padding: 0 1.5rem 4rem;
  max-width: 640px;
  margin: 0 auto;
}

.model-page__content {
  text-align: center;
}

.model-page__photo {
  width: min(320px, 80vw);
  margin: 0 auto 2rem;
}

.model-page__photo img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.model-page__name {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.model-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem 2rem;
  max-width: 360px;
  margin: 0 auto 2rem;
  text-align: left;
  font-size: 0.95rem;
  line-height: 1.7;
}

.model-info__item {
  margin: 0;
}

.model-info__label {
  font-weight: 700;
}

.model-page__placeholder {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.model-page__back {
  display: inline-block;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
}

.model-page__back:hover {
  opacity: 0.6;
}

.model-page__error {
  color: var(--color-muted);
  padding: 2rem 0;
}

.model-page__loading {
  color: var(--color-muted);
  padding: 2rem 0;
}