/* DO Innovations — sitewide premium presentation layer.
   Purely additive: all effects are triggered by classes that
   premium-site.js adds. Without JS the site renders exactly as before. */

/* brand text selection */
::selection { background: var(--red); color: #fff; }

/* refined scrollbar */
html { scrollbar-color: var(--line-2) var(--canvas); scrollbar-width: thin; }
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--canvas); }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 8px; border: 2px solid var(--canvas); }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

/* header: elevation on scroll + reading progress */
.site-header { transition: box-shadow 0.28s ease; }
.site-header.hdr-scrolled { box-shadow: 0 10px 34px -16px rgba(24, 12, 16, 0.22); }
.scroll-progress {
  position: absolute; left: 0; bottom: -1px; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--red), var(--red-deep));
  z-index: 5; pointer-events: none;
}

/* gentle page entrance (JS-gated via body.pjs) */
@media (prefers-reduced-motion: no-preference) {
  body.pjs main { animation: pageIn 0.55s cubic-bezier(0.16, 0.84, 0.44, 1) both; }
  @keyframes pageIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
}

/* scroll reveal (shared with service pages) */
.prv { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.16, 0.84, 0.44, 1), transform 0.8s cubic-bezier(0.16, 0.84, 0.44, 1); }
.prv.in { opacity: 1; transform: none; }

/* card refinements */
.team-photo { transition: transform 0.45s cubic-bezier(0.16, 0.84, 0.44, 1); }
.team-card:hover .team-photo { transform: scale(1.045); }
.btn-primary:active { transform: translateY(0) scale(0.97); }

/* back to top */
.btt {
  position: fixed; right: 22px; bottom: 22px; z-index: 96;
  width: 46px; height: 46px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--ink); color: #fff; font-size: 19px; line-height: 1;
  box-shadow: var(--shadow-sm);
  opacity: 0; transform: translateY(14px); pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
}
.btt.show { opacity: 1; transform: none; pointer-events: auto; }
.btt:hover { background: var(--red); }
@media (max-width: 960px) { .btt { bottom: 86px; right: 16px; } }

/* richer, near-black body text sitewide */
:root { --body: #141114; --muted: #423C3F; }

/* primary buttons: light sweep on hover */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -70%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg); transition: left 0.5s ease; pointer-events: none;
}
.btn-primary:hover::after { left: 130%; }

/* service cards: deeper lift, arrow slides */
.ip-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--red-tint-2); }
.ip-arrow { transition: transform 0.22s ease; display: inline-block; }
.ip-card:hover .ip-arrow { transform: translateX(6px); }

/* member and partner logos: monochrome until hovered */
.member-card img, .partner-card img { filter: grayscale(1); opacity: 0.75; transition: filter 0.3s ease, opacity 0.3s ease; }
.member-card:hover img, .partner-card:hover img { filter: none; opacity: 1; }

/* nav: animated underline on hover */
.main-nav a {
  background: linear-gradient(var(--red), var(--red)) left calc(100% - 4px) / 0% 2px no-repeat;
  transition: background-size 0.25s ease, color 0.18s ease;
}
.main-nav a:not([aria-current="page"]):hover { background-size: 100% 2px; }

/* --- About page refinements (classes are unique to that page) --- */
.mission { position: relative; overflow: hidden; }
.mission::after {
  content: ""; position: absolute; right: -8%; top: -45%;
  width: 540px; height: 540px; pointer-events: none;
  background: radial-gradient(circle, rgba(224, 22, 43, 0.09), transparent 68%);
}
.mission h2.prv::before { width: 0; transition: width 0.9s cubic-bezier(0.16, 0.84, 0.44, 1) 0.25s; }
.mission h2.prv.in::before { width: 64px; }
.show-more {
  border: 1px solid var(--line-2); border-radius: 100px;
  padding: 9px 20px; text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.show-more:hover { border-color: var(--red); background: var(--red-tint); text-decoration: none; }
.team-contacts a { transition: color 0.18s ease, border-color 0.18s ease; }
.team-details { transition: max-height 0.4s cubic-bezier(0.16, 0.84, 0.44, 1); }
.team-card .btn { transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease; }

@media (prefers-reduced-motion: reduce) {
  .prv { opacity: 1; transform: none; transition: none; }
  .team-card:hover .team-photo { transform: none; }
  .btn-primary::after { display: none; }
  .mission h2.prv::before { width: 64px; transition: none; }
}

/* --- mobile refinements sitewide --- */
html { -webkit-text-size-adjust: 100%; }
@media (max-width: 600px) {
  .ts-promo { padding: 22px 18px; }
  .ts-offer { padding: 18px 16px; }
  .faq-item summary { font-size: 15.5px; padding: 15px 16px; }
  .faq-a { padding: 0 16px 15px; font-size: 15px; }
  .link-list a { padding: 18px 18px; }
  .rec-award { padding: 22px 18px; }
  .scroll-progress { height: 2px; }
}
@media (max-width: 999px) {
  .btt { width: 42px; height: 42px; font-size: 17px; }
}