:root {
  --brand: #0641ad;
  --white: #ffffff;
  --ink: #0b1b3a;
  --glow: rgba(140, 190, 255, 0.95);
  --glow-intro: rgba(0, 238, 255, 0.95);
  --glow-alt: rgba(0, 255, 34, 0.95);
  --glow-alt2: rgba(240, 90, 255, 0.95);
  --glow-btn: rgba(140, 190, 255, 0.55);
  --glow-speed: 7s;
  --lead-delay: 0.3s;
  --draw-delay: 1.0s;
  --d-delay: 2.6s;
  --pulse-delay: 1.0s;
  --intro-delay: 1.7s;
  --h1-delay: 2.8s;
  --p-delay: 3.2s;
  --btn-delay: 3.6s;
  --send-delay: 1.8s;
  --rule: rgba(6, 65, 173, 0.2);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "Segoe UI", sans-serif; color: var(--ink); line-height: 1.6; }
a { color: var(--brand); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
.hero { text-align: center; padding: 4rem 1.5rem; overflow-x: clip; }
.btn { position: relative; isolation: isolate; overflow: hidden; display: inline-block; padding: .8rem 1.6rem; background: var(--brand); color: var(--white); text-decoration: none; border-radius: 4px; }
section:not(.hero) { max-width: 60rem; margin: 0 auto; padding: 3rem 1.5rem; }
footer { text-align: center; padding: 2rem; }
.logo-mark {
  position: relative;
  width: min(380px, 70vw);
  aspect-ratio: 893.87 / 911.72;
  margin: 0 auto;
}
.logo-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 40%, var(--sweep-color, var(--glow)) 50%, transparent 60%);
  background-size: 250% 100%;
  background-repeat: no-repeat;
  -webkit-mask: url(../assets/logo_bold_DTBlue_transparent.svg) center / contain no-repeat;
  mask: url(../assets/logo_bold_DTBlue_transparent.svg) center / contain no-repeat;
  animation: sweep var(--glow-speed) ease-in-out var(--intro-delay) infinite, tint var(--glow-speed) step-end var(--intro-delay) forwards;
}
@keyframes sweep {
  0%   { background-position: 0% 0; }
  60%  { background-position: 100% 0; }
  100% { background-position: 100% 0; }
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 40%, var(--sweep-color-btn, var(--glow-btn)) 50%, transparent 60%);
  background-size: 250% 100%;
  background-repeat: no-repeat;
  animation: sweep var(--glow-speed) ease-in-out var(--intro-delay) infinite, tint var(--glow-speed) step-end var(--intro-delay) forwards;
}
.logo-svg { display: block; width: 100%; height: auto; overflow: visible; }
.lead {
  fill: none;
  stroke: var(--brand);
  stroke-width: 5;
  stroke-dasharray: 0.03 0.05 0.05 0.05 0.10 2;
  stroke-dashoffset: 0.29;
  animation: lead 1.1s cubic-bezier(.45, 0, .55, 1) var(--lead-delay) forwards;
}
.draw {
  fill: none;
  stroke: #fff;
  stroke-width: 100;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1 2;
  stroke-dashoffset: 1.01;
  animation: draw 1.8s ease-in-out var(--draw-delay) forwards;
}
.draw-d { opacity: 0; animation: fade-in 0.9s ease-out var(--d-delay) forwards; }
@keyframes lead { to { stroke-dashoffset: -1.02; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade-in { to { opacity: 1; } }
.pulse {
  fill: none;
  stroke: var(--glow);
  stroke-width: 14;
  stroke-linejoin: round;
  stroke-dasharray: 0.02 0.03 0.03 0.03 0.06 2;
  stroke-dashoffset: 0.18;
  animation: pulse 1.25s ease-in-out var(--pulse-delay) forwards;
}
@keyframes pulse { to { stroke-dashoffset: -1.01; } }
@keyframes tint {
  from { --sweep-color: var(--glow-intro); --sweep-color-btn: var(--glow-intro); }
  to   { --sweep-color: var(--glow);       --sweep-color-btn: var(--glow-btn); }
}
.cards-section { padding-top: 1rem; }
.cards { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 760px) { .cards { grid-template-columns: 1fr 1fr; } }
.card {
  background: var(--white);
  border: 1px solid rgba(6, 65, 173, 0.2);
  border-radius: 8px;
  padding: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(6, 65, 173, 0.06);
  transition: opacity 0.7s ease, transform 0.7s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { border-color: var(--brand); }
.card:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; text-align: left; }
.card h2 { margin: 0; font-size: 1.35rem; line-height: 1.25; color: var(--ink); }
.icon {
  flex: none; width: 128px; height: 128px; color: var(--brand);
  fill: none; stroke: currentColor; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round;
}
.card-rule { height: 2px; margin: 1rem 0; background: var(--brand); transform-origin: left; transition: transform 0.8s ease 0.25s; }
.js .card { opacity: 0; transform: translateY(28px); }
.js .card.is-visible { opacity: 1; transform: none; }
.js .card-rule { transform: scaleX(0); }
.js .card.is-visible .card-rule { transform: scaleX(1); }
/* ---- Hero text fade-in and contact page ---- */
@keyframes rise { from { opacity: 0; transform: translateY(28px); } }
@keyframes fade-out { to { opacity: 0; } }

.hero h1 {
  width: fit-content;
  margin: 1.5rem auto 0.5rem;
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  animation: rise 0.8s ease-out var(--h1-delay) backwards;
}
.hero > p { animation: rise 0.8s ease-out var(--p-delay) backwards; }
.hero > .btn { animation: rise 0.8s ease-out var(--btn-delay) backwards; }

/* Leaving the homepage */
.is-leaving .hero > p,
.is-leaving .hero > .btn { animation: fade-out 0.8s ease forwards; }
.is-leaving .card { opacity: 0 !important; transition: opacity 0.8s ease; }

/* Contact page */
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem 1rem; max-width: 70rem; margin: 0 auto; padding: 1rem 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; text-decoration: none; color: var(--ink); }
.brand-logo { display: block; width: 44px; height: auto; }
.site-title { display: inline-block; font-size: 1.25rem; font-weight: 700; line-height: 1.2; color: var(--ink); }
.contact { max-width: 70rem; margin: 0 auto; padding: 1rem 1.5rem 4rem; }
.contact-title {
  margin: 0 0 2rem; padding-bottom: 1rem; font-size: 1.1rem; font-style: italic;
  border-bottom: 1px solid var(--rule); animation: rise 0.8s ease-out 0.5s backwards;
}
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
@media (min-width: 760px) { .contact-grid { grid-template-columns: 1fr 1fr; gap: 3rem 3.5rem; } }
.col-form { animation: rise 0.8s ease-out 0.65s backwards; }
.col-info { animation: rise 0.8s ease-out 0.8s backwards; }
.contact h2 { margin: 0 0 1.5rem; font-size: 1.35rem; font-weight: 400; color: var(--ink); }
.contact h3 { margin: 2rem 0 0.75rem; font-size: 1.2rem; font-weight: 400; color: var(--ink); }
.contact p { margin: 0 0 1rem; color: #3b4a66; }
.contact input, .contact textarea {
  display: block; width: 100%; margin-bottom: 1.5rem; padding: 1rem; font: inherit; color: var(--ink);
  background: var(--white); border: 1px solid var(--rule); border-radius: 4px;
}
.contact textarea { min-height: 10rem; resize: vertical; }
.contact input:focus-visible, .contact textarea:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-color: var(--brand); }
.btn-block { display: block; width: 100%; border: 0; font: inherit; font-weight: 700; cursor: pointer; padding: 1rem; }
.btn-plain::before {
  background-image: linear-gradient(105deg, transparent 40%, var(--glow) 50%, transparent 60%);
  animation: sweep var(--glow-speed) ease-in-out var(--send-delay) infinite,
             reveal var(--glow-speed) step-end var(--send-delay) forwards;
}
.btn-plain::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 40%, var(--glow-intro) 50%, transparent 60%);
  background-size: 250% 100%;
  background-repeat: no-repeat;
  animation: sweep var(--glow-speed) ease-in-out var(--send-delay) 1;
}
@keyframes reveal { from { opacity: 0; } to { opacity: 1; } }
.hours { border-collapse: collapse; color: #3b4a66; }
.hours th { padding: 0.15rem 1rem 0.15rem 0; font-weight: 400; text-align: left; }
.hours td { padding: 0.15rem 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Fade the whole page out before navigating to another page */
.is-exiting body { opacity: 0; transition: opacity 0.6s ease; }
/* Contact page: service dock (top right) */
.svc-dock { position: relative; z-index: 20; display: flex; gap: 0.5rem; margin-left: auto; }
.svc { display: block; }
.svc.is-open { display: contents; }
.svc.is-open .svc-btn { display: none; }
.svc-btn {
  display: grid; place-items: center; width: 44px; height: 44px; padding: 0; cursor: pointer;
  background: var(--white); border: 1px solid var(--rule); border-radius: 8px; color: var(--brand);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.svc-btn .icon { width: 26px; height: 26px; stroke-width: 7; }
.svc-btn:hover { border-color: var(--brand); box-shadow: 0 4px 14px rgba(6, 65, 173, 0.15); }
.svc-btn:focus-visible, .svc-card:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
.card-close { position: absolute; top: 1rem; right: 1.5rem; z-index: 12; opacity: 0; pointer-events: none; transition: opacity 0.2s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
.card-open.is-grown .card-close { opacity: 1; pointer-events: auto; }
.svc-dock.intro .svc-btn { animation: drop-in 0.7s ease-out calc(1.1s + var(--i) * 0.09s) backwards; }
.svc-card {
  position: absolute; top: calc(100% + 0.6rem); right: 0; width: min(400px, calc(100vw - 3rem));
  padding: 1.25rem; cursor: pointer; background: var(--white); border-radius: 8px;
  border: 1px solid var(--brand); box-shadow: 0 0 0 1px var(--brand), 0 14px 36px rgba(6, 65, 173, 0.2);
  animation: card-in 0.35s ease-out;
}
.svc-card[hidden] { display: none; }
.svc-card h2 { margin: 0; font-size: 1.2rem; line-height: 1.25; color: var(--ink); text-align: left; }
.svc-rule { height: 2px; margin: 1rem 0; background: var(--brand); }
@keyframes drop-in { from { opacity: 0; transform: translateY(-14px); } }
@keyframes card-in { from { opacity: 0; transform: translateY(-8px); } }
/* Home: logo, headline and Contact button dock into a top bar on scroll */
.home-bar { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: var(--white); border-bottom: 1px solid transparent; opacity: 0; pointer-events: none; transition: border-bottom-color 0.2s ease;}
.home-bar.is-docked { border-bottom-color: var(--rule);}
.home-bar-inner { max-width: 70rem; margin: 0 auto; padding: 1rem 1.5rem; display: flex; align-items: center; gap: 0.75rem; }
.home-bar-inner > span { visibility: hidden; }
.slot-logo { flex: none; width: 44px; aspect-ratio: 893.87 / 911.72; }
.slot-title { font-size: 1.25rem; font-weight: 700; line-height: 1.2; white-space: nowrap; }
.slot-btn { flex: none; margin-left: auto; }
.hero .logo-mark, .hero h1, .hero > .btn { position: relative; z-index: 60; transform-origin: 0 0; will-change: transform; }
@media (max-width: 480px) { .slot-title { font-size: 1.05rem; } }
/* Secret footer click: cycle the logo glow color */
.secret-trigger { user-select: none; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
.logo-mark[data-glow] .logo-glow {
  background-image: linear-gradient(105deg, transparent 40%, var(--glow-pick) 50%, transparent 60%);
  animation: sweep var(--glow-speed) ease-in-out -1s infinite;
}
/* Home: click a card to expand it over the grid */
.cards { position: relative; scroll-margin-top: 100px; transition: height 0.6s ease; }
.card.is-faded { opacity: 0 !important; pointer-events: none; }
.card.is-source { visibility: hidden; }
.card-open {
  position: absolute; z-index: 5; overflow: hidden; padding: 1.5rem; cursor: pointer;
  background: var(--white); border: 1px solid rgba(6, 65, 173, 0.2); border-radius: 8px;
  box-shadow: 0 4px 18px rgba(6, 65, 173, 0.06);
  transition: left 0.6s ease, top 0.6s ease, width 0.6s ease, height 0.6s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
.card-open.is-grown { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand), 0 14px 36px rgba(6, 65, 173, 0.2); }
.card-open:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
.open-inner { display: flex; flex-direction: column; height: 100%; min-height: 0; transition: opacity 0.2s ease; }
.card-open h2 { margin: 0; font-size: 1.35rem; line-height: 1.25; color: var(--ink); transition: font-size 0.6s ease; }
.card-open.is-grown h2 { font-size: 1.9rem; }
.card-open .card-head { transition: margin-top 0.6s ease; }
.card-open.is-grown .card-head { margin-top: calc(44px + 1.5rem); }
.service-switcher {
  --sw-btn: 80px; --sw-ico: 50px;
  position: relative; z-index: 6; display: flex; justify-content: center; flex-wrap: wrap; gap: 0.5rem;
  width: 100%; margin: 1.5rem 0 1rem;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.2s ease, visibility 0s linear 0.2s;
}
.service-switcher.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transition-delay: 0s; }
.service-switcher .svc-btn { width: var(--sw-btn); height: var(--sw-btn); }
.service-switcher .svc-btn .icon { width: var(--sw-ico); height: var(--sw-ico); }
@media (max-width: 759px) { .service-switcher { --sw-btn: 50px; --sw-ico: 35px; } }
.card-scroll-controls { position: absolute; inset: 0; z-index: 10; opacity: 0; pointer-events: none; transition: opacity 0.2s ease; }
.card-open.is-grown .card-scroll-controls { opacity: 1; }
.card-scroll-arrow { position: absolute; right: 1.5rem; transition: opacity 0.2s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
.card-scroll-arrow.is-hidden { opacity: 0; pointer-events: none; }
.card-scroll-arrow[data-card-scroll="top"] { top: var(--description-top, 1rem); }
.card-scroll-arrow[data-card-scroll="bottom"] { bottom: 1rem; }
.card-open.is-grown .card-scroll-arrow:not(.is-hidden) { pointer-events: auto; }
/* Home: stage with the six cards and the About Us card */
.stage { display: grid; }
.stage > .slide { grid-area: 1 / 1; min-width: 0; }
.stage > .cards { align-self: start; }
.slide[inert] { visibility: hidden; }
.about-card {
  background: var(--white); border: 1px solid rgba(6, 65, 173, 0.2); border-radius: 8px;
  padding: 2rem 2.5rem; box-shadow: 0 4px 18px rgba(6, 65, 173, 0.06);
}
.about-card h2 { margin: 0; font-size: 1.9rem; line-height: 1.25; color: var(--ink); }
.about-card p { margin: 0; text-align: left; color: #3b4a66; font-size: 1.1rem; }
.slide-navs {
  position: fixed; inset: 0; z-index: 40; display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(0.75rem, calc(50vw - 38rem)); pointer-events: none; opacity: 0; transition: opacity 0.3s ease;
}
.slide-navs.is-in-view { opacity: 1; }
.slide-nav { pointer-events: none; }
.slide-navs.is-in-view .slide-nav { pointer-events: auto; }
@media (min-width: 760px) and (max-width: 1119px) { section.cards-section { padding-inline: 4.25rem; } }
@media (max-width: 759px) {
  .slide-navs { position: static; opacity: 1; padding: 1rem 0 0; }
  .slide-nav { pointer-events: auto; }
  .stage.on-about > .cards { display: none; }
}
/* Service content (expanded card and contact dock card) */
.card-service-details { --service-accent: var(--brand); display: grid; gap: 0.5rem; }
.card-service-section { margin: 0; }
.card-service-section h2 { margin: 0 0 0.6rem; text-align: left; }
.card-service-section h3 { margin: 0 0 0.4rem; color: var(--service-accent); font-size: 0.75rem; font-weight: 700; line-height: 1.4; letter-spacing: 0.06em; text-transform: uppercase; }
.card-service-section p { margin: 0; color: inherit; font-size: 0.9rem; line-height: 1.6; }
.card-service-section p + p { margin-top: 0.75rem; }
.card-service-section + .card-service-section { padding-top: 0.3rem; border-top: 1px solid rgb(128 128 128 / 18%); }
.card-service-list { display: grid; gap: 0.4rem; margin: 0.5rem 0 0; padding: 0; list-style: none; }
.card-service-list li { display: flex; align-items: center; gap: 0.65rem; padding: 0.4rem 0.65rem; color: inherit; font-size: 0.9rem; line-height: 1.4; background: rgb(128 128 128 / 8%); border-radius: 6px; }
.card-service-list li::before { content: ""; flex: 0 0 6px; width: 6px; height: 6px; border-radius: 50%; background: var(--service-accent, var(--brand)); }
.svc-card-body { max-height: min(50vh, 360px); overflow-y: auto; overscroll-behavior: contain; color: #3b4a66; }

/* Expanded card: scrolling description in two columns */
.card-open .card-head, .card-open .svc-rule { flex-shrink: 0; }
.card-open .svc-description { flex: 1; min-height: 0; overflow: hidden; opacity: 0; pointer-events: none; transition: opacity 0.2s ease; }
.card-open.is-grown .svc-description { overflow-y: auto; overflow-x: hidden; overscroll-behavior-y: contain; scrollbar-width: none; opacity: 1; pointer-events: auto; transition-delay: 0.35s; }
.card-open .svc-description::-webkit-scrollbar { display: none; }
.card-open .card-service-details { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 0.25rem 2rem; align-items: start; }
.card-open .card-service-main { display: flex; flex-direction: column; gap: 0.75rem; min-width: 0; }
.card-open .card-service-section { min-width: 0; padding-bottom: 0; }
.card-open .card-service-section:first-child { padding-top: 0; }
.card-open .card-service-main > .card-service-section + .card-service-section { padding-top: 1.5rem; }
.card-open .card-service-details > .card-service-section { margin-top: 0; padding-top: 0; border-top: none; }
.card-open.is-grown .svc-description p { font-size: 0.95rem; line-height: 1.5; }
.card-open.is-grown .svc-description h2 { margin-top: 0; font-size: 1.3rem; line-height: 1.3; }
@media (max-width: 759px) {
  .card-open .card-service-details { grid-template-columns: minmax(0, 1fr); gap: 0.25rem; }
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .logo-glow { animation: none; display: none; }
  .logo-mark[data-glow] .logo-glow { animation: none; }
  .btn::before { animation: none; display: none; }
  .btn-plain::before, .btn-plain::after { animation: none; display: none; }
  .lead { display: none; }
  .draw { animation: none; stroke-dashoffset: 0; }
  .draw-d { animation: none; opacity: 1; }
  .pulse { display: none; }
  .hero h1, .hero > p, .hero > .btn, .contact-title, .col-form, .col-info { animation: none; }
  .svc-dock.intro .svc-btn, .svc-card { animation: none; }
  .card, .card-rule, .is-exiting body, .cards, .card-open, .card-open h2, .card-open .card-head,
  .open-inner, .card-close, .card-scroll-controls, .card-scroll-arrow { transition: none; }
  .card-open .svc-description, .card-open.is-grown .svc-description { transition: none; transition-delay: 0s; }
}