.graduation-booklets { min-width: 0; display: grid; gap: 20px; color: var(--ink); }
.graduation-booklets .gb-heading h2 { margin: 6px 0 10px; }
.graduation-booklets .gb-heading p { max-width: 70ch; margin: 0; line-height: 1.6; color: var(--muted); }
.graduation-booklets .gb-panel { border: 1px solid var(--line); background: var(--panel, #fff); border-radius: 16px; padding: clamp(16px, 3vw, 28px); min-width: 0; }
.graduation-booklets .gb-choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.graduation-booklets .gb-choices label { display: grid; gap: 8px; min-width: 0; font-weight: 700; }
.graduation-booklets select { width: 100%; min-width: 0; max-width: 100%; min-height: 48px; font-size: 16px; }
.graduation-booklets .gb-student-graduation { margin: 16px 0; font-size: .9rem; color: var(--muted); line-height: 1.5; overflow-wrap: anywhere; }
.graduation-booklets .gb-selected { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 22px; padding-top: 22px; border-top: 1px solid var(--line); }
.graduation-booklets .gb-selected h3 { margin: 4px 0 8px; font-size: 1.4rem; }
.graduation-booklets .gb-selected p { margin: 6px 0; color: var(--muted); font-size: .95rem; line-height: 1.5; }
.graduation-booklets .gb-book-symbol { width: 68px; height: 82px; display: grid; place-items: center; border-radius: 12px; background: #e5f1eb; color: #236a45; font-size: 32px; }
.graduation-booklets .gb-notice { display: grid; gap: 14px; border-radius: 12px; padding: 18px; background: var(--soft); line-height: 1.55; }
.graduation-booklets .gb-notice .button { justify-self: start; }
.graduation-booklets .gb-error { border: 1px solid #c66b6b; }
.graduation-booklets .gb-locked p { max-width: 68ch; line-height: 1.6; color: var(--muted); }
.graduation-booklets .gb-reader { position: fixed; inset: 0; margin: auto; padding: 0; width: min(1120px, calc(100vw - 32px)); height: min(960px, calc(100dvh - 32px)); max-width: 100vw; max-height: 100dvh; min-width: 0; border: 1px solid var(--line); border-radius: 16px; color: var(--ink); background: var(--panel, #fff); overflow: hidden; }
.graduation-booklets .gb-reader::backdrop { background: rgba(6, 20, 12, .76); }
.graduation-booklets .gb-reader-layout { display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; width: 100%; height: 100%; min-width: 0; min-height: 0; }
.graduation-booklets .gb-reader-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: start; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.graduation-booklets .gb-reader-head h2 { font-size: clamp(1rem, 2vw, 1.4rem); margin: 4px 0; line-height: 1.25; overflow-wrap: anywhere; }
.graduation-booklets .gb-reader-head p { margin: 4px 0 0; font-size: .82rem; color: var(--muted); overflow-wrap: anywhere; }
.graduation-booklets .gb-reader-head .icon-button { min-width: 44px; min-height: 44px; font-size: 28px; }
.graduation-booklets .gb-reader-tools { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 14px; border-bottom: 1px solid var(--line); }
.graduation-booklets .gb-reader-tools .button { min-height: 44px; padding: 8px 14px; font-size: .82rem; white-space: normal; }
.graduation-booklets .gb-reader-tools [aria-pressed="true"] { background: #236a45; color: #fff; border-color: #236a45; }
.graduation-booklets .gb-pdf-link { margin-left: auto; }
.graduation-booklets .gb-reader-body { display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); place-items: center; min-width: 0; min-height: 0; overflow: auto; padding: 12px; background: #e7ede9; overscroll-behavior: contain; touch-action: pan-x pan-y pinch-zoom; }
.graduation-booklets .gb-reader-body[data-view="fit"] { overflow: hidden; }
.graduation-booklets .gb-page { display: block; min-width: 0; max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; box-shadow: 0 4px 24px rgba(0, 0, 0, .18); background: #fff; }
.graduation-booklets .gb-reader-body[data-view="width"] { display: block; }
.graduation-booklets .gb-reader-body[data-view="width"] .gb-page { width: min(100%, 1100px); max-height: none; margin: 0 auto; }
.graduation-booklets .gb-page-error, .graduation-booklets .gb-reader-message { display: grid; gap: 14px; max-width: 460px; text-align: center; padding: 22px; line-height: 1.6; color: #173727; }
.graduation-booklets [hidden] { display: none !important; }
.graduation-booklets .gb-reader-foot { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, auto) minmax(0, 1fr); gap: 10px; align-items: center; padding: 10px 14px max(10px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); }
.graduation-booklets .gb-reader-foot span { text-align: center; font-size: .86rem; line-height: 1.3; }
.graduation-booklets .gb-reader-foot small { display: block; font-size: .7rem; }
.graduation-booklets .gb-reader-foot .button { min-height: 44px; padding: 8px 10px; white-space: normal; }
.graduation-booklets .gb-reader-foot .button:first-child { justify-self: start; }
.graduation-booklets .gb-reader-foot .button:last-child { justify-self: end; }
[data-theme="dark"] .graduation-booklets .gb-book-symbol { background: #244838; color: #b9e1ca; }
[data-theme="dark"] .graduation-booklets .gb-reader-body { background: #15281f; }
[data-theme="dark"] .graduation-booklets .gb-page-error, [data-theme="dark"] .graduation-booklets .gb-reader-message { color: #d3ebdd; }
@media (max-width: 700px) {
  .graduation-booklets .gb-choices { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .graduation-booklets .gb-selected { grid-template-columns: auto minmax(0, 1fr); gap: 16px; }
  .graduation-booklets .gb-selected > .button { grid-column: 1 / -1; width: 100%; min-height: 48px; }
  .graduation-booklets .gb-book-symbol { width: 52px; height: 66px; }
  .graduation-booklets .gb-selected h3 { font-size: 1.2rem; }
  .graduation-booklets .gb-reader { width: 100vw; height: 100dvh; border: 0; border-radius: 0; }
  .graduation-booklets .gb-reader-head { padding: max(10px, env(safe-area-inset-top)) 12px 10px; }
  .graduation-booklets .gb-reader-head .library-kicker { display: none; }
  .graduation-booklets .gb-reader-tools { padding: 6px 10px; }
  .graduation-booklets .gb-reader-tools .button { flex: 1 1 auto; padding-inline: 8px; }
  .graduation-booklets .gb-pdf-link { margin-left: 0; }
  .graduation-booklets .gb-reader-body { padding: 8px; }
  .graduation-booklets .gb-reader-foot { padding-inline: 10px; gap: 6px; }
}

/* v123: adapt to the library's usable width, including a desktop sidebar. */
.graduation-booklets { container: graduation-booklets / inline-size; max-width: 100%; }
.graduation-booklets .library-kicker { color: var(--green-dark); }
.graduation-booklets :is(.gb-heading, .gb-heading h2, .gb-heading p, .gb-selected > div,
  .gb-notice, .gb-reader-head > div, .gb-reader-tools, .gb-reader-foot > span) {
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.graduation-booklets .gb-choices {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}
.graduation-booklets .gb-selected {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 16px;
}
.graduation-booklets .gb-selected > .button {
  grid-column: 1 / -1;
  justify-self: stretch;
  width: 100%;
}
.graduation-booklets :is(.button, .icon-button) {
  min-width: 0;
  max-width: 100%;
  min-height: 44px;
  white-space: normal;
  word-break: normal;
  overflow-wrap: normal;
  hyphens: none;
}
.graduation-booklets .gb-reader { overflow: auto; }
.graduation-booklets .gb-reader-head { max-height: 32dvh; overflow-y: auto; }
.graduation-booklets .gb-reader-head .icon-button { width: 44px; min-width: 44px; }
.graduation-booklets .gb-reader-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr));
  max-height: 26dvh;
  overflow-y: auto;
}
.graduation-booklets .gb-reader-tools .gb-pdf-link { margin-left: 0; }
.graduation-booklets .gb-reader-body[data-view="fit"] .gb-page {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.graduation-booklets :is(.gb-page-error, .gb-reader-message) {
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.graduation-booklets .gb-reader-foot { max-height: 30dvh; overflow-y: auto; }
@container graduation-booklets (min-width: 760px) {
  .graduation-booklets .gb-selected { grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; }
  .graduation-booklets .gb-selected > .button { grid-column: auto; }
}
@media (max-width: 540px) {
  .graduation-booklets .gb-reader-foot { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .graduation-booklets .gb-reader-foot > span { grid-column: 1 / -1; grid-row: 1; }
  .graduation-booklets .gb-reader-foot > .button { width: 100%; justify-self: stretch; }
}
@media (max-height: 500px) {
  .graduation-booklets .gb-reader-layout { grid-template-rows: auto auto minmax(100px, 1fr) auto; }
  .graduation-booklets .gb-reader-head { max-height: 25dvh; }
}