/* --------------------------------------------------------------------------
   Meus desenhos de infância — estilos globais
   Compatível com abertura local (file://) e GitHub Pages
   -------------------------------------------------------------------------- */

:root {
  --bg: #f4f1ec;
  --bg-pattern: #e8e2d9;
  --text: #2c2825;
  --text-muted: #5c5550;
  --accent: #6b7c6b;
  --accent-hover: #556555;
  --card: #fffdf9;
  --shadow: 0 8px 32px rgba(44, 40, 37, 0.08);
  --shadow-hover: 0 12px 40px rgba(44, 40, 37, 0.12);
  --radius: 14px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html {
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg);
  /* Textura sutil (grade) */
  background-image:
    linear-gradient(90deg, var(--bg-pattern) 1px, transparent 1px),
    linear-gradient(var(--bg-pattern) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: center;
}

/* Layout central */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

/* Cabeçalho */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.title {
  font-size: clamp(1.75rem, 5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  color: var(--text);
}

.subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 36rem;
  margin-inline: auto;
  line-height: 1.5;
}

.subtitle code {
  font-size: 0.85em;
  background: var(--card);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  box-shadow: 0 0 0 1px var(--bg-pattern);
}

/* Vistas: lista de álbuns vs. fotos */
.view-heading {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 1rem;
  text-align: center;
  color: var(--text-muted);
}

/* Grade de álbuns (capas) */
.albums {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.albums__item {
  animation: itemEnter 0.5s var(--transition) both;
}

.album-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: var(--text);
  overflow: hidden;
  transition: box-shadow var(--transition), transform 0.2s ease;
}

.album-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.album-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.album-card__cover {
  display: block;
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-pattern);
}

.album-card__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.33, 1, 0.68, 1);
}

.album-card:hover .album-card__img,
.album-card:focus-visible .album-card__img {
  transform: scale(1.05);
}

.album-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.9rem 1rem 1.1rem;
}

.album-card__title {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.album-card__meta {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Barra: voltar + título do álbum */
.photos-bar {
  margin-bottom: 1.5rem;
}

.back-btn {
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  margin: 0 0 0.75rem;
  border: 2px solid var(--bg-pattern);
  border-radius: 10px;
  background: var(--card);
  color: var(--accent);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color 0.2s ease;
}

.back-btn:hover {
  border-color: var(--accent);
  background: rgba(107, 124, 107, 0.08);
}

.back-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.album-title {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Galeria em grid */
.gallery {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

@media (min-width: 600px) {
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
  }
}

/* Grelha de fotos (dentro de um álbum) */
.gallery__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow);
  aspect-ratio: 1;
  transition: box-shadow var(--transition);
  animation: itemEnter 0.45s var(--transition) both;
}

@keyframes itemEnter {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.gallery__link {
  display: block;
  width: 100%;
  height: 100%;
  line-height: 0;
  cursor: zoom-in;
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  border: none;
  background: none;
  padding: 0;
  font: inherit;
}

.gallery__link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius);
}

.gallery__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s cubic-bezier(0.33, 1, 0.68, 1);
}

.gallery__link:hover .gallery__img,
.gallery__link:focus-visible .gallery__img {
  transform: scale(1.06);
}

/* Rodapé */
.footer {
  text-align: center;
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- Lightbox (com navegação tipo carrossel) ---------- */
.lightbox[hidden] {
  display: none !important;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: lightboxIn 0.32s var(--transition) both;
}

.lightbox__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 0;
  max-height: 100%;
  flex: 1;
  pointer-events: none;
}

.lightbox__inner > * {
  pointer-events: auto;
}

.lightbox__stage {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  width: 100%;
  max-width: min(100%, 1000px);
  min-height: 0;
}

@keyframes lightboxIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(32, 28, 25, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: none;
  cursor: pointer;
  z-index: 0;
}

.lightbox__content {
  position: relative;
  z-index: 1;
  margin: 0;
  flex: 1;
  min-width: 0;
  max-width: min(90vw, 900px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: contentIn 0.4s 0.05s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes contentIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.lightbox__img {
  display: block;
  max-width: 100%;
  max-height: min(78vh, 85dvh);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  transition: opacity 0.2s ease;
}

.lightbox__img.is-fading {
  opacity: 0.35;
}

.lightbox__meta {
  margin-top: 0.65rem;
  text-align: center;
  max-width: 100%;
  padding: 0 0.5rem;
}

.lightbox__caption {
  margin: 0;
  color: #f0ebe4;
  font-size: 0.95rem;
  line-height: 1.4;
}

.lightbox__counter {
  margin: 0.25rem 0 0;
  color: rgba(240, 235, 228, 0.65);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.lightbox__nav {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  font-weight: 300;
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0 0 2px;
  font-family: inherit;
  transition: background 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
}

.lightbox__nav:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.05);
}

.lightbox__nav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.lightbox__nav:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  transform: none;
}

@media (max-width: 520px) {
  .lightbox__stage {
    gap: 0.15rem;
  }

  .lightbox__nav {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    font-size: 1.5rem;
  }
}

.lightbox__close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
  display: grid;
  place-items: center;
  padding: 0;
  font-family: inherit;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.05);
}

.lightbox__close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

body.lightbox-open {
  overflow: hidden;
}