:root {
  --fb-bg: #0e0e0e;
  --fb-text: #f5f5f5;
  --fb-text-soft: #d4c8b8;
  --fb-text-mute: #ab947c;
  --fb-text-dim: #9a8570;
  --fb-accent: #e8b85a;
  --fb-accent-dim: #5a4530;
  --fb-border: #2a2218;
  --fb-photo-bg: #18120c;
  --fb-serif: 'Times New Roman', Georgia, 'EB Garamond', serif;
  --fb-max-content: 600px;
  --fb-max-trio: 540px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--fb-bg); }

.fb-body {
  background: var(--fb-bg);
  color: var(--fb-text);
  font-family: var(--fb-serif);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.fb-main {
  display: block;
  width: 100%;
}

/* =========================================================
   HERO
   ========================================================= */
.fb-hero {
  padding: 3rem 2rem 1rem;
  text-align: center;
}

.fb-hero__topbar {
  display: flex;
  justify-content: space-between;
  max-width: 800px;
  margin: 0 auto 2rem;
  font-size: 0.85rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fb-accent);
}

.fb-hero__title {
  font-size: clamp(1.4rem, 4vw, 2.5rem);
  letter-spacing: 0.5em;
  margin: 0;
  font-weight: 400;
  color: var(--fb-text);
}

.fb-hero__subtitle {
  font-size: 0.85rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--fb-accent);
  margin: 0.85rem 0 3rem;
}

.fb-hero__trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: var(--fb-max-trio);
  margin: 0 auto;
}

.fb-hero__photo {
  aspect-ratio: 3 / 4;
  background: var(--fb-photo-bg);
  border: 1px solid var(--fb-border);
  position: relative;
  cursor: pointer;
}

.fb-hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.fb-hero__trio {
  padding-bottom: 4.5rem;
}

/* placeholder gradients per slot, used until real heroes loaded */
.fb-hero__photo[data-year="2006"]:not(:has(img)) { background: linear-gradient(135deg, #2a2520, #0f0c08); }
.fb-hero__photo[data-year="2009"]:not(:has(img)) { background: linear-gradient(135deg, #3a322a, #18130c); }
.fb-hero__photo[data-year="2011"]:not(:has(img)) { background: linear-gradient(135deg, #4a3e34, #20180f); }

.fb-hero__label {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding-top: 0.85rem;
  text-align: center;
}

.fb-hero__year {
  display: block;
  font-size: 0.95rem;
  letter-spacing: 4px;
  color: var(--fb-accent);
}

.fb-hero__event {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fb-text-mute);
  font-style: italic;
  margin-top: 0.4rem;
}

/* =========================================================
   INTRO
   ========================================================= */
.fb-intro {
  padding: 0.5rem 2rem 5rem;
  max-width: var(--fb-max-content);
  margin: 0 auto;
}

.fb-intro__divider {
  text-align: center;
  color: var(--fb-accent-dim);
  font-size: 1.4rem;
  letter-spacing: 8px;
  margin: 0 0 2.5rem;
}

.fb-intro__body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--fb-text-soft);
}

.fb-intro__body p {
  margin: 0 0 1.25rem;
}

.fb-intro__body em {
  color: #f5f0e8;
  font-style: italic;
}

.fb-intro__signoff {
  margin-top: 2.25rem;
  font-style: italic;
  color: var(--fb-text-mute);
  font-size: 0.95rem;
}

/* =========================================================
   SESSIONS (one per year)
   ========================================================= */
.fb-sessions {
  padding: 0;
}

.fb-session {
  padding: 4rem 2rem 5rem;
  border-top: 1px solid var(--fb-accent-dim);
}

.fb-session__header {
  text-align: center;
  margin-bottom: 3rem;
}

.fb-session__year {
  font-size: clamp(2.4rem, 6vw, 3rem);
  letter-spacing: 6px;
  margin: 0;
  font-weight: 400;
  color: var(--fb-text);
}

.fb-session__divider {
  width: 40px;
  height: 1px;
  background: var(--fb-text-dim);
  margin: 1rem auto;
}

.fb-session__meta {
  font-size: 0.65rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

.fb-session__toolbar {
  display: flex;
  justify-content: flex-end;
  max-width: 1200px;
  margin: 0 auto 1.5rem;
}

.fb-session__zip-btn {
  background: transparent;
  border: 1px solid var(--fb-accent-dim);
  color: var(--fb-accent);
  font-family: var(--fb-serif);
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.fb-session__zip-btn:hover {
  background: var(--fb-accent-dim);
  color: var(--fb-text);
}

.fb-session__zip-btn[data-busy="true"] {
  cursor: wait;
  opacity: 0.6;
}

/* Masonry - CSS columns */
.fb-session__gallery {
  column-count: 3;
  column-gap: 12px;
  max-width: 1200px;
  margin: 0 auto;
}

.fb-session__photo {
  break-inside: avoid;
  margin-bottom: 12px;
  background: var(--fb-photo-bg);
  border: 1px solid var(--fb-border);
  cursor: pointer;
  overflow: hidden;
  display: block;
}

.fb-session__photo img {
  width: 100%;
  height: auto;
  display: block;
}

/* Placeholder gradients (when no real image) - varied for visual interest */
.fb-session__photo--placeholder {
  height: 0;
  padding-bottom: 133%; /* 3:4 default */
}
.fb-session__photo--placeholder[data-shape="square"] { padding-bottom: 100%; }
.fb-session__photo--placeholder[data-shape="wide"] { padding-bottom: 75%; }
.fb-session__photo--placeholder[data-shape="tall"] { padding-bottom: 150%; }

/* Credit footer per session */
.fb-session__credit {
  text-align: center;
  margin-top: 4rem;
  padding-top: 2.5rem;
}

.fb-session__credit-label {
  font-size: 0.65rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

.fb-session__credit-name {
  display: block;
  margin-top: 0.4rem;
  font-style: italic;
  color: var(--fb-text);
  font-size: 0.95rem;
  letter-spacing: 1px;
}

/* =========================================================
   LIGHTBOX
   ========================================================= */
.fb-lightbox[hidden] {
  display: none;
}

.fb-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.fb-lightbox[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}

.fb-lightbox__stage {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fb-lightbox__img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  display: block;
}

.fb-lightbox__btn {
  position: absolute;
  background: transparent;
  border: 1px solid var(--fb-accent-dim);
  color: var(--fb-accent);
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-family: var(--fb-serif);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.fb-lightbox__btn:hover {
  background: var(--fb-accent-dim);
  color: var(--fb-text);
}

.fb-lightbox__close { top: 1.5rem; right: 1.5rem; }
.fb-lightbox__prev  { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.fb-lightbox__next  { right: 1.5rem; top: 50%; transform: translateY(-50%); }
.fb-lightbox__download { bottom: 1.5rem; right: 1.5rem; }

.fb-lightbox__caption {
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
  pointer-events: none;
}

/* =========================================================
   PHOTOGRAPHER (Fernando Vélez)
   ========================================================= */
.fb-photographer {
  background: var(--fb-bg);
  padding: 5rem 2rem;
  position: relative;
}

.fb-photographer__transition {
  text-align: center;
  margin-bottom: 4rem;
}

.fb-photographer__ornament {
  font-size: 1.4rem;
  letter-spacing: 8px;
  color: var(--fb-accent-dim);
  margin-bottom: 1rem;
}

.fb-photographer__transition-label {
  font-size: 0.7rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

.fb-photographer__page {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.fb-photographer__portrait {
  text-align: center;
}

.fb-photographer__portrait-frame {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1 / 1.3;
  margin: 0 auto 1.5rem;
  background: var(--fb-photo-bg);
  border: 1px solid var(--fb-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fb-text);
}

.fb-photographer__portrait-frame svg {
  width: 80%;
  height: 80%;
}

.fb-photographer__portrait-caption {
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

.fb-photographer__label {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--fb-text-mute);
  font-weight: 400;
}

.fb-photographer__name {
  margin: 0 0 2.5rem;
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1;
  letter-spacing: 1px;
  color: #f5f0e8;
  font-weight: 400;
}

.fb-photographer__bio {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--fb-text-soft);
  margin-bottom: 2.5rem;
  font-style: italic;
}

.fb-photographer__dedication {
  border-top: 1px solid var(--fb-border);
  padding-top: 1.75rem;
  font-size: 0.95rem;
  color: #a89580;
  line-height: 1.6;
}

.fb-photographer__dedication-label {
  font-size: 0.65rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
  display: block;
  margin-bottom: 0.75rem;
}

.fb-photographer__meta {
  margin-top: 2rem;
  font-size: 0.65rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

.fb-photographer__meta span:not(:last-child)::after {
  content: '·';
  margin: 0 0.75rem;
  color: var(--fb-accent-dim);
}

/* =========================================================
   VOL. 02 - chapter divider, hero, intro
   ========================================================= */
.fb-voldivider {
  padding: 8rem 2rem 4rem;
  text-align: center;
  border-top: 1px solid var(--fb-accent-dim);
}

.fb-voldivider__ornament {
  font-size: 1.4rem;
  letter-spacing: 8px;
  color: var(--fb-accent-dim);
  margin-bottom: 2.5rem;
}

.fb-voldivider__label {
  font-size: 0.75rem;
  letter-spacing: 7px;
  text-transform: uppercase;
  color: var(--fb-accent);
  margin-bottom: 1.5rem;
}

.fb-voldivider__title {
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  font-weight: 400;
  letter-spacing: 2px;
  margin: 0;
  color: var(--fb-text);
}

.fb-vol2hero {
  padding: 3rem 2rem 1.5rem;
  display: flex;
  justify-content: center;
}

.fb-vol2hero__frame {
  max-width: 760px;
  width: 100%;
  border: 1px solid var(--fb-border);
  background: var(--fb-photo-bg);
}

.fb-vol2hero__frame img {
  width: 100%;
  height: auto;
  display: block;
}

.fb-vol2hero__frame--placeholder,
.fb-vol2hero__frame:empty {
  aspect-ratio: 3 / 2;
  background: linear-gradient(135deg, #4a3e34, #20180f);
}

.fb-vol2intro {
  padding: 2.5rem 2rem 3rem;
  max-width: var(--fb-max-content);
  margin: 0 auto;
}

/* =========================================================
   FOOTER
   ========================================================= */
.fb-footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--fb-accent-dim);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--fb-text-dim);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

/* Tablet - below 900px */
@media (max-width: 899px) {
  .fb-session__gallery {
    column-count: 2;
  }
  .fb-photographer__page {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .fb-photographer__portrait {
    max-width: 240px;
    margin: 0 auto;
  }
}

/* Mobile - below 600px */
@media (max-width: 599px) {
  .fb-hero {
    padding: 2rem 1rem 3rem;
  }
  .fb-voldivider {
    padding: 5rem 1rem 3rem;
  }
  .fb-vol2hero {
    padding: 2rem 1rem 1rem;
  }
  .fb-vol2intro {
    padding: 2rem 1rem 2.5rem;
  }
  .fb-hero__trio {
    grid-template-columns: 1fr;
    max-width: 240px;
    gap: 3.5rem;
  }
  .fb-session {
    padding: 3rem 1rem 4rem;
  }
  .fb-session__gallery {
    column-count: 2;
    column-gap: 8px;
  }
  .fb-session__photo {
    margin-bottom: 8px;
  }
  .fb-photographer {
    padding: 4rem 1rem;
  }
  .fb-intro {
    padding: 2rem 1rem 4rem;
  }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .fb-lightbox,
  .fb-lightbox__btn,
  .fb-session__zip-btn,
  .fb-session__photo {
    transition: none;
  }
}