/* ================================
   PharmaProLearn Study Visuals
   Public notes visuals
================================ */

:root {
  --ppl-study-visual-radius: 22px;
  --ppl-study-visual-border: rgba(22, 35, 42, 0.1);
  --ppl-study-visual-shadow:
    0 18px 46px rgba(22, 35, 42, 0.075),
    0 2px 8px rgba(22, 35, 42, 0.035);

  /* Main size controls */
  --ppl-study-visual-below-max-w: 760px;
  --ppl-study-visual-full-max-w: 920px;
  --ppl-study-visual-pair-max-w: 1120px;

  --ppl-study-visual-below-max-h: 430px;
  --ppl-study-visual-full-max-h: 520px;
  --ppl-study-visual-side-max-h: 300px;
}

/* Base visual card */
.ppl-study-visual {
  position: relative;
  width: 100%;
  margin: 1.35rem 0;
  border-radius: var(--ppl-study-visual-radius);
  overflow: hidden;
  border: 1px solid var(--ppl-study-visual-border);
  background: #fff;
  box-shadow: var(--ppl-study-visual-shadow);
}

/* Clickable image area */
.ppl-study-visual__open {
  display: grid;
  place-items: center;
  width: 100%;
  padding: 0;
  border: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(29, 185, 84, 0.035), transparent 34%),
    #fff;
  cursor: zoom-in;
  text-align: inherit;
  overflow: hidden;
}

.ppl-study-visual__open:focus-visible {
  outline: 3px solid rgba(29, 185, 84, 0.35);
  outline-offset: -3px;
}

/* Restrict image height so it does not dominate the page */
.ppl-study-visual__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: var(--ppl-study-visual-below-max-h);
  object-fit: contain;
  transition:
    transform 220ms ease,
    filter 220ms ease;
}

.ppl-study-visual__open:hover .ppl-study-visual__img {
  transform: scale(1.014);
  filter: saturate(1.04) contrast(1.02);
}

/* Caption */
.ppl-study-visual__caption {
  padding: 0.78rem 0.95rem 0.88rem;
  font-size: 0.9rem;
  line-height: 1.52;
  color: rgba(22, 35, 42, 0.72);
  background:
    linear-gradient(180deg, rgba(247, 251, 250, 0.92), rgba(255, 255, 255, 0.98));
  border-top: 1px solid rgba(22, 35, 42, 0.075);
}

/* Standard below-section visual */
.ppl-study-visual--below {
  width: min(100%, var(--ppl-study-visual-below-max-w));
  margin-left: auto;
  margin-right: auto;
}

.ppl-study-visual--below .ppl-study-visual__img {
  max-height: var(--ppl-study-visual-below-max-h);
}

/* Full-width feature visual, still controlled */
.ppl-study-visual--full {
  width: min(100%, var(--ppl-study-visual-full-max-w));
  margin: 1.75rem auto;
  border-radius: 26px;
}

.ppl-study-visual--full .ppl-study-visual__img {
  max-height: var(--ppl-study-visual-full-max-h);
}

.ppl-study-visual--full .ppl-study-visual__caption {
  font-size: 0.94rem;
}

/* Left/right premium paired layout */
.ppl-study-visual-pair {
  display: grid;
  gap: clamp(0.95rem, 2.2vw, 1.45rem);
  align-items: center;
  width: min(100%, var(--ppl-study-visual-pair-max-w));
  margin: 1.25rem auto;
  border-radius: 26px;
  background: transparent;
}

.ppl-study-visual-pair--left {
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
}

.ppl-study-visual-pair--right {
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.34fr);
}

/* Side images must remain supportive, not dominant */
.ppl-study-visual-pair .ppl-study-visual {
  margin: 0;
  width: 100%;
  max-width: 380px;
  border-radius: 20px;
  align-self: center;
}

.ppl-study-visual-pair--left .ppl-study-visual {
  justify-self: start;
}

.ppl-study-visual-pair--right .ppl-study-visual {
  justify-self: end;
}

.ppl-study-visual-pair .ppl-study-visual__img {
  max-height: var(--ppl-study-visual-side-max-h);
}

.ppl-study-visual-pair .ppl-study-visual__caption {
  font-size: 0.84rem;
  line-height: 1.45;
  padding: 0.68rem 0.78rem;
}

.ppl-study-visual-pair__content {
  min-width: 0;
  align-self: center;
}

.ppl-study-visual-pair__content > :first-child {
  margin-top: 0;
}

.ppl-study-visual-pair__content > :last-child {
  margin-bottom: 0;
}

/* Retain old left/right class support */
.ppl-study-visual--left,
.ppl-study-visual--right {
  width: 100%;
}

/* Prevent accidental huge legacy figures */
.pplNotesPreview .ppl-study-visual,
.study-notes .ppl-study-visual,
.notes-content .ppl-study-visual,
.ppl-study-visual {
  max-width: 100%;
}

.ppl-study-visual img {
  max-width: 100%;
}

/* Lightbox */
.pplStudyLightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3vw, 2rem);
  background: rgba(8, 16, 20, 0.88);
  backdrop-filter: blur(12px);
}

.pplStudyLightbox[hidden] {
  display: none;
}

.pplStudyLightbox__inner {
  position: relative;
  width: min(1200px, 96vw);
  max-height: 92vh;
  display: grid;
  gap: 0.8rem;
}

.pplStudyLightbox__img {
  display: block;
  width: 100%;
  max-height: 84vh;
  object-fit: contain;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

.pplStudyLightbox__caption {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.95rem;
  line-height: 1.5;
  text-align: center;
}

.pplStudyLightbox__close {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: #16232a;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
}

.pplStudyLightbox__close:focus-visible {
  outline: 3px solid rgba(29, 185, 84, 0.6);
  outline-offset: 3px;
}

body.pplStudyLightboxOpen {
  overflow: hidden;
}

/* Tablet */
@media (max-width: 900px) {
  :root {
    --ppl-study-visual-below-max-w: 100%;
    --ppl-study-visual-full-max-w: 100%;
    --ppl-study-visual-below-max-h: 380px;
    --ppl-study-visual-full-max-h: 430px;
    --ppl-study-visual-side-max-h: 360px;
  }

  .ppl-study-visual-pair,
  .ppl-study-visual-pair--left,
  .ppl-study-visual-pair--right {
    grid-template-columns: 1fr;
    margin: 1.25rem 0;
    border-radius: 24px;
  }

  .ppl-study-visual-pair .ppl-study-visual {
    max-width: 680px;
    justify-self: center;
  }

  .ppl-study-visual-pair--right .ppl-study-visual {
    order: -1;
  }

  .ppl-study-visual-pair .ppl-study-visual {
    border-radius: 20px;
  }
}

/* Mobile */
@media (max-width: 560px) {
  :root {
    --ppl-study-visual-below-max-h: 300px;
    --ppl-study-visual-full-max-h: 340px;
    --ppl-study-visual-side-max-h: 300px;
  }

  .ppl-study-visual,
  .ppl-study-visual--full,
  .ppl-study-visual-pair {
    border-radius: 20px;
  }

  .ppl-study-visual {
    margin: 1.1rem 0;
  }

  .ppl-study-visual--full {
    margin: 1.25rem 0;
  }

  .ppl-study-visual__caption {
    font-size: 0.86rem;
    padding: 0.72rem 0.82rem;
  }

  .ppl-study-visual-pair {
    gap: 0.85rem;
  }

  .ppl-study-visual-pair .ppl-study-visual {
    max-width: 100%;
  }

  .pplStudyLightbox {
    padding: 0.75rem;
  }

  .pplStudyLightbox__img {
    border-radius: 18px;
  }

  .pplStudyLightbox__close {
    top: 0.35rem;
    right: 0.35rem;
  }
}

/* Public-image download deterrents. This cannot make a browser-delivered
   image impossible to extract; the baked-in watermark preserves attribution. */
.ppl-study-visual__img,
.pplStudyLightbox__img {
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
}