/* Support panel and document reader. Scoped to .sd / .sd-reader. */
#support.sd {
  --sd-paper: #f6f7f4;
  --sd-ink: #0f1311;
  --sd-mute: #4a524e;
  --sd-line: #d9ddd8;
  --sd-field: #eceeea;
  --sd-green: #36F3AD;
  --sd-green-deep: #0c7a55;
  --sd-err: #b3261e;
  background: var(--sd-paper);
  color: var(--sd-ink);
  padding: 64px 0 60px;
  border-top: 3px solid var(--sd-green);
}
.sd-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 56px; align-items: start; }
.sd .eyebrow { color: var(--sd-green-deep); }
.sd h2 { font-size: clamp(26px,2.7vw,36px); line-height: 1.1; color: var(--sd-ink); max-width: 18ch; margin-bottom: 14px; }
.sd-copy > p { font-size: 14px; line-height: 1.65; color: var(--sd-mute); max-width: 58ch; }
.sd-docs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.sd-doc {
  display: inline-flex; align-items: center; gap: 12px; min-height: 64px; padding: 10px 18px 10px 12px;
  background: #fbfcfa; color: var(--sd-ink); border: 1px solid var(--sd-line); border-radius: 8px;
  font: inherit; text-align: left; cursor: pointer;
  transition: border-color .18s ease, transform .18s ease, background-color .18s ease;
}
.sd-doc svg { width: 28px; height: 35px; flex: none; color: var(--sd-ink); }
.sd-doc .sd-acc { stroke: var(--sd-green-deep); transition: stroke .18s ease; }
.sd-doc b { display: block; font: 700 14px/1.2 "Chakra Petch", sans-serif; }
.sd-doc small { display: block; margin-top: 3px; font-size: 11px; color: var(--sd-mute); }
.sd-doc:hover { border-color: var(--sd-ink); transform: translateY(-1px); }
.sd-doc:hover .sd-acc { stroke: var(--sd-ink); }
.sd-doc:focus-visible, .sd-submit:focus-visible, .sd-close:focus-visible, .sd-pages:focus-visible, .sd-retry:focus-visible { outline: 2px solid var(--sd-green-deep); outline-offset: 3px; }

.sd-form { display: grid; gap: 4px; }
.sd-field label { display: flex; justify-content: space-between; font-size: 12px; font-weight: 600; color: var(--sd-ink); margin-bottom: 6px; }
.sd-field label span { color: var(--sd-green-deep); }
.sd-opt { font-weight: 400; color: var(--sd-mute) !important; }
.sd-field input, .sd-field textarea {
  width: 100%; box-sizing: border-box; padding: 11px 13px; border: 1px solid transparent; border-radius: 6px;
  background: var(--sd-field); color: var(--sd-ink); font: 400 14px/1.4 Inter, sans-serif;
  transition: border-color .15s ease, background-color .15s ease;
}
.sd-field textarea { resize: vertical; min-height: 104px; }
.sd-field input::placeholder, .sd-field textarea::placeholder { color: #7b827e; }
.sd-field input:hover, .sd-field textarea:hover { border-color: var(--sd-line); }
.sd-field input:focus, .sd-field textarea:focus { outline: none; border-color: var(--sd-ink); background: #fbfcfa; box-shadow: 0 0 0 3px rgba(54,243,173,.45); }
.sd-field [aria-invalid="true"] { border-color: var(--sd-err); }
.sd-err { min-height: 16px; margin: 4px 0 6px; font-size: 11px; color: var(--sd-err); }
.sd-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.sd-submit {
  min-height: 44px; border: 0; border-radius: 6px; background: var(--sd-ink); color: #f6f7f4; cursor: pointer;
  font: 700 13px "Chakra Petch", sans-serif; letter-spacing: .12em; text-transform: uppercase;
  transition: background-color .18s ease, color .18s ease;
}
.sd-submit:hover { background: var(--sd-green); color: var(--sd-ink); }
.sd-submit[aria-busy="true"] { opacity: .7; cursor: progress; }
.sd-submit[aria-busy="true"] .sd-submit-label::after { content: "..."; }
.sd-status { min-height: 20px; margin: 10px 0 0; font-size: 13px; }
.sd-status.ok { color: var(--sd-green-deep); font-weight: 600; }
.sd-status.bad { color: var(--sd-err); }

/* Reader */
.sd-reader {
  width: min(920px, calc(100% - 24px)); max-width: none; height: calc(100dvh - 32px); max-height: none;
  padding: 0; overflow: hidden; border: 1px solid #2a2f2c; border-radius: 10px; background: #e9ebe7; color: #0f1311;
}
.sd-reader[open] { display: flex; flex-direction: column; }
.sd-reader::backdrop { background: rgba(9,10,14,.78); }
.sd-bar { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px 12px 20px; background: #090A0E; color: #f6f7f4; border-bottom: 2px solid #36F3AD; }
.sd-reader .sd-bar h2 { margin: 0; padding: 0; font-size: 17px; color: inherit; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sd-close { min-height: 36px; padding: 0 14px; border: 1px solid #36F3AD; border-radius: 6px; background: transparent; color: #36F3AD; font: 600 12px Inter, sans-serif; cursor: pointer; transition: background-color .15s ease, color .15s ease; }
.sd-close:hover { background: #36F3AD; color: #090A0E; }
.sd-close:focus-visible { outline-color: #36F3AD; }
.sd-pages { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 20px; display: grid; gap: 16px; justify-items: center; align-content: start; -webkit-user-select: none; user-select: none; }
.sd-page { width: 100%; max-width: 820px; background: #fbfcfa; box-shadow: 0 1px 2px rgba(9,10,14,.12), 0 6px 18px rgba(9,10,14,.08); border-radius: 2px; }
.sd-page img { display: block; width: 100%; height: auto; -webkit-user-drag: none; pointer-events: none; }
.sd-skel { width: 100%; max-width: 820px; aspect-ratio: 1 / 1.414; border-radius: 2px; background: linear-gradient(90deg,#dfe2dd 0,#eceeea 40%,#dfe2dd 80%); background-size: 200% 100%; animation: sd-shimmer 1.3s linear infinite; }
.sd-msg { margin: 48px auto; max-width: 40ch; text-align: center; font-size: 14px; color: #4a524e; }
.sd-retry { margin-top: 12px; min-height: 38px; padding: 0 16px; border: 0; border-radius: 6px; background: #0f1311; color: #f6f7f4; font: 600 12px Inter, sans-serif; cursor: pointer; }
html.sd-lock, html.sd-lock body { overflow: hidden; }
@keyframes sd-shimmer { to { background-position: -200% 0; } }

@media (max-width: 760px) {
  #support.sd { padding: 44px 0 40px; }
  .sd-grid { grid-template-columns: 1fr; gap: 32px; }
  .sd-doc { flex: 1 1 200px; }
  .sd-reader { width: 100%; height: 100dvh; max-height: 100dvh; border-radius: 0; border: 0; margin: 0; }
  .sd-pages { padding: 10px; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .sd-doc, .sd-submit, .sd-field input, .sd-field textarea, .sd-close { transition: none; }
  .sd-doc:hover { transform: none; }
  .sd-skel { animation: none; }
}
@media print {
  .sd-reader, .sd-reader * { display: none !important; }
}