/* ── Reset & base ──────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: "DM Sans", sans-serif;
  background: #fff;
  color: #111;
  -webkit-font-smoothing: antialiased;
}

/* ── Gallery shell ─────────────────────────────────────────────────── */
#gallery {
  position: relative;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
}

/* ── Slider track ──────────────────────────────────────────────────── */
#slider {
  position: relative;
  width: 100%;
  height: 100%;
}

/* ── Screens (the animated unit) ──────────────────────────────────── */
/* Each screen is one viewport-sized container that slides left/right. */
/* On mobile every screen holds one slide.                             */
/* On desktop, photo pairs share a single screen (.screen--pair).     */
.screen {
  position: absolute;
  inset: 0;
  display: flex;

  /* off-screen by default */
  transform: translateX(100%);
  transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.screen.is-active { transform: translateX(0); }
.screen.is-prev   { transform: translateX(-100%); }

/* ── Individual slides (layout only, no animation) ─────────────────── */
.slide {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem 1.5rem;
  background: #fff;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── Text slides ───────────────────────────────────────────────────── */
.slide--text {
  text-align: left;
  align-items: flex-start;
  gap: 1.25rem;
}

.slide--form {
  text-align: left;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 1.75rem;
}

.slide__form-copy {
  display: grid;
  gap: 1.25rem;
}

.slide--text .slide__title,
.slide--form .slide__title {
  font-size: clamp(1.6rem, 6vw, 2.8rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  max-width: 26ch;
}

.slide--text .slide__body,
.slide--form .slide__body {
  font-size: clamp(1rem, 3.5vw, 1.2rem);
  color: #555;
  line-height: 1.7;
  max-width: 38ch;
  white-space: pre-line;
}

.slide__link {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

.contact-form {
  width: min(100%, 32rem);
  display: grid;
  gap: 1rem;
}

.contact-form__field {
  display: grid;
  gap: 0.45rem;
}

.contact-form__label {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: #666;
}

.contact-form__input {
  width: 100%;
  border: 1px solid #d8d8d8;
  border-radius: 0;
  background: #fff;
  color: #111;
  font: inherit;
  padding: 0.85rem 0.95rem;
}

.contact-form__input--textarea {
  min-height: 7.5rem;
  resize: vertical;
}

.contact-form__input:focus {
  outline: none;
  border-color: #111;
}

.contact-form__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-form__button {
  border: 1px solid #111;
  background: #111;
  color: #fff;
  font: inherit;
  padding: 0.75rem 1.1rem;
  cursor: pointer;
}

.contact-form__button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.contact-form__status {
  font-size: 0.95rem;
  color: #555;
}

/* ── Photo slides ──────────────────────────────────────────────────── */
.slide--photo {
  justify-content: flex-start;
  padding: 1.25rem 1.25rem 0;
  gap: 0;
}

.slide__image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 0;
  overflow: hidden;
}

.slide__image-wrap img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
  display: block;
  /* subtle fade-in when src loads */
  animation: imgfadein 0.5s ease both;
}

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

.slide__caption-wrap {
  flex: 1;
  width: 100%;
  display: flex;
  //justify-content: center;
  padding: 1.5rem 0;
  text-align: left;
}

.slide__caption {
  font-size: clamp(0.95rem, 3.5vw, 1.15rem);
  color: #333;
  line-height: 1.65;
  max-width: 38ch;
}

/* ── Slide counter ─────────────────────────────────────────────────── */
#counter {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 10;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: #aaa;
  font-family: "DM Sans", sans-serif;
  white-space: nowrap;
  pointer-events: none;
}

.slide > #counter {
  position: static;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ── Navigation arrows (desktop) ──────────────────────────────────── */
.nav-arrow {
  display: none; /* hidden on mobile */
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: transparent;
  border: none;
  padding: 0.75rem 1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s;
  color: #000;
}

.nav-arrow svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke-width: 2.5;
}

.nav-arrow:hover { opacity: 0.45; }

.nav-arrow--prev { left: 0; }
.nav-arrow--next { right: 0; }

.nav-arrow:disabled {
  display: none;
}

/* ── Desktop breakpoint ────────────────────────────────────────────── */
@media (min-width: 768px) {
  #counter {
    bottom: 2rem;
    left: 4rem;
  }

  .nav-arrow {
    display: flex;
  }

  /* Smoother slide transition on desktop */
  .screen {
    transition: transform 0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .slide--text .slide__title,
  .slide--form .slide__title {
    font-size: clamp(2rem, 4vw, 3.2rem);
  }

  .slide--photo {
    padding: 2rem 3.5rem 0;
  }

  .slide__caption {
    font-size: 1.1rem;
  }

  /* wider screens: constrain content width */
  .slide--text {
    padding: 3rem 4rem;
  }

  .slide--form {
    padding: 3rem 4rem;
  }

  .slide--photo .slide__caption-wrap {
    justify-content: center;
    text-align: center;
  }

  .slide__image-wrap img {
    max-height: 75vh;
  }
}

@media (min-width: 1024px) {
  /* ── Two-up photo layout ───────────────────────────────────────────── */
  /* Photo pairs share a single .screen--pair that animates as one unit. */
  /* Each photo slide takes half the viewport width.                     */
  .screen--pair .slide--photo {
    flex: 0 0 50%;
  }
}