/* ==========================================================================
   contact.css — CONTACT section (.contact*) and FOOTER (.footer*).
   ========================================================================== */

.contact [hidden],
.footer [hidden] {
  display: none !important;
}

.contact {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: clamp(40px, 7vw, 84px);
  padding-block: clamp(4px, 2vw, 24px) 0;
}

/* --------------------------------------------------------------------------
   Decorative layer: gradient orb
   -------------------------------------------------------------------------- */
.contact__decor {
  position: absolute;
  z-index: -1;
  inset: -60px calc(var(--gutter) * -1) -40px;
  overflow: hidden;
  pointer-events: none;
  /* fade out on all four sides so the glow never ends in a hard rectangular edge */
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 18%, #000 74%, transparent),
    linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 18%, #000 74%, transparent),
    linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.contact__orb {
  position: absolute;
  right: 4%;
  top: 0;
  width: min(62vw, 660px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(var(--accent-rgb), 0.3),
    rgba(var(--accent-2-rgb), 0.17) 46%,
    transparent 70%
  );
  filter: blur(34px);
  opacity: 0.8;
  animation: contact-drift 20s ease-in-out infinite alternate;
  animation-play-state: paused;
}
.contact__decor.is-live .contact__orb {
  animation-play-state: running;
}
:root[data-theme="light"] .contact__orb {
  opacity: 0.55;
}
@media (max-width: 640px) {
  /* phones, light theme: the cool disc sat right behind the e-mail domain and grayed it; keep it a faint glow off to the side */
  :root[data-theme="light"] .contact__orb {
    opacity: 0.32;
    right: -14%;
    top: -14%;
  }
}
@keyframes contact-drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-9%, 12%, 0) scale(1.12);
  }
}
/* --------------------------------------------------------------------------
   CTA: eyebrow · huge e-mail · actions
   -------------------------------------------------------------------------- */
.contact__cta {
  min-width: 0;
}
.contact__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8em;
  margin-bottom: var(--s-4);
}

.contact__email {
  position: relative;
  display: inline-block;
  max-width: 100%;
  padding-bottom: 0.14em;
  font-size: clamp(1.4rem, 6.6vw, 4.75rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  overflow-wrap: anywhere;
}
.contact__email::before,
.contact__email::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: max(2px, 0.05em);
  border-radius: 2px;
}
.contact__email::before {
  background: var(--line-strong);
}
.contact__email::after {
  background: var(--accent-grad);
  box-shadow: 0 0 22px rgba(var(--accent-rgb), 0.55);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.7s var(--ease-out);
}
.contact__local {
  color: var(--text);
}
.contact__domain {
  color: var(--text-2);
  transition: color var(--dur-3) var(--ease);
}
.contact__at {
  padding-inline: 0.03em;
  color: var(--accent);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}
.contact__email:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}
.contact__email:focus-visible .contact__domain {
  color: var(--text);
}
@media (hover: hover) and (pointer: fine) {
  .contact__email:hover::after {
    transform: scaleX(1);
    transform-origin: left center;
  }
  .contact__email:hover .contact__domain {
    color: var(--text);
  }
}
.contact__email:focus-visible {
  outline-offset: 8px;
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3);
  margin-top: clamp(24px, 4vw, 40px);
}
.contact__actions .btn {
  min-height: 46px;
}

/* copy button: two stacked icons that cross-fade */
.contact__copy-icons {
  position: relative;
  display: inline-block;
  width: 1.1em;
  height: 1.1em;
}
.contact__icon {
  position: absolute;
  inset: 0;
  display: block;
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-3) var(--ease-out);
}
.contact__icon .icon {
  width: 100%;
  height: 100%;
}
.contact__icon--check {
  opacity: 0;
  transform: scale(0.4) rotate(-30deg);
  color: var(--ok);
}
.contact__copy.is-copied {
  --_bd: var(--ok);
  --_bg: rgba(var(--accent-rgb), 0.06);
}
.contact__copy.is-copied .contact__icon--copy {
  opacity: 0;
  transform: scale(0.4);
}
.contact__copy.is-copied .contact__icon--check {
  opacity: 1;
  transform: none;
}

/* live "Singapore local time" HUD chip */
.contact__hud {
  display: inline-flex;
  align-items: center;
  gap: 0.85em;
  min-height: 46px;
  padding: 0.5em 1.1em 0.5em 0.95em;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--panel);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--text-2);
  font-size: var(--fs-xs);
}
.contact__hud-pin {
  display: inline-flex;
  color: var(--accent);
}
.contact__hud-pin .icon {
  width: 18px;
  height: 18px;
}
.contact__hud-text {
  display: grid;
  gap: 2px;
  line-height: 1.2;
}
.contact__hud-label {
  color: var(--text-3);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.contact__hud-row {
  display: flex;
  align-items: baseline;
  gap: 0.7em;
}
.contact__hud-time {
  color: var(--text);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.contact__colon {
  display: inline-block;
  margin-inline: 0.06em;
  animation: contact-colon 1s steps(1) infinite;
}
@keyframes contact-colon {
  50% {
    opacity: 0.15;
  }
}
.contact__hud-zone,
.contact__wd {
  color: var(--text-3);
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
}

/* touch: the big e-mail link is a real tap target */
@media (pointer: coarse) {
  .contact__email {
    padding-block: max(0.28em, 10px) max(0.36em, 12px);
  }
}

@media (min-width: 900px) {
  .contact__hud {
    margin-left: auto;
  }
}

/* --------------------------------------------------------------------------
   Link cards
   -------------------------------------------------------------------------- */
.contact__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-4);
}
@media (min-width: 560px) {
  .contact__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .contact__link-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}
.contact__link-item {
  display: grid;
  min-width: 0;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  min-width: 0;
  min-height: 88px;
  padding: var(--s-4) var(--s-5);
  border-radius: var(--r-md);
}
.contact__link-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: rgba(var(--accent-rgb), 0.05);
  color: var(--text);
  transition: color var(--dur-2), border-color var(--dur-2), background var(--dur-2), box-shadow var(--dur-3);
}
.contact__link-icon .icon {
  width: 22px;
  height: 22px;
}
.contact__link-body {
  display: grid;
  flex: 1;
  gap: 3px;
  min-width: 0;
}
.contact__link-label {
  line-height: 1.2;
}
.contact__link-handle {
  overflow: hidden;
  color: var(--text);
  font-size: var(--fs-md);
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.contact__link-arrow {
  display: inline-flex;
  flex: none;
  color: var(--text-3);
  transition: color var(--dur-2), transform var(--dur-3) var(--ease-out);
}
.contact__link-arrow .icon {
  width: 20px;
  height: 20px;
}
@media (hover: hover) and (pointer: fine) {
  .contact__link:hover .contact__link-icon {
    color: var(--accent);
    border-color: var(--line-accent);
    background: rgba(var(--accent-rgb), 0.12);
    box-shadow: 0 0 26px rgba(var(--accent-rgb), 0.25);
  }
  .contact__link:hover .contact__link-arrow {
    color: var(--accent);
    transform: translate(4px, -4px);
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  position: relative;
  z-index: var(--z-content);
  margin-top: clamp(24px, 6vw, 64px);
  padding: var(--s-7) 0 calc(var(--s-6) + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  background: var(--veil);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.footer::before {
  /* accent glint on the hairline */
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  width: min(60%, 520px);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.65), transparent);
  pointer-events: none;
}
.footer__inner {
  display: grid;
  gap: var(--s-6);
}

.footer__top-row {
  display: grid;
  gap: var(--s-5);
  align-items: center;
}
.footer__brand {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.footer__name {
  font-size: var(--fs-lg);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
}
.footer__place {
  color: var(--text-3);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
}

.footer__nav .footer__nav-list {
  /* the extra class beats ul[role=list]: link text starts on the same edge as the wordmark and the copyright */
  display: flex;
  flex-wrap: wrap;
  gap: 2px 6px;
  margin-inline: -10px;
}
@media (max-width: 560px) {
  .footer__nav .footer__nav-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
}
.footer__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  color: var(--text-2);
  font-size: var(--fs-sm);
  transition: color var(--dur-2);
}
.footer__link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-3) var(--ease-out);
}
.footer__link:focus-visible {
  color: var(--text);
}
.footer__link:focus-visible::after {
  transform: scaleX(1);
}
@media (hover: hover) and (pointer: fine) {
  .footer__link:hover {
    color: var(--text);
  }
  .footer__link:hover::after {
    transform: scaleX(1);
  }
}

.footer__top {
  justify-self: start;
  min-height: 44px;
  padding-inline: 1.1em;
}
.footer__top-icon {
  display: inline-flex;
  transform: rotate(180deg);
  transition: transform var(--dur-3) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .footer__top:hover .footer__top-icon {
    transform: rotate(180deg) translateY(3px);
  }
}

.footer__rule {
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), var(--line) 60%, transparent);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-5);
  color: var(--text-3);
  font-size: var(--fs-micro);
  letter-spacing: 0.03em;
  line-height: 1.6;
}
.footer__copy {
  color: var(--text-2);
}
.footer__source {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  min-height: 44px;
  margin-block: -12px;
  color: var(--text-2);
  transition: color var(--dur-2);
}
.footer__source .icon {
  width: 14px;
  height: 14px;
}
.footer__source:focus-visible {
  color: var(--accent);
}
@media (hover: hover) and (pointer: fine) {
  .footer__source:hover {
    color: var(--accent);
  }
}

@media (min-width: 900px) {
  .footer__top-row {
    grid-template-columns: minmax(200px, auto) 1fr auto;
    gap: var(--s-6);
  }
  .footer__nav .footer__nav-list {
    justify-content: center;
  }
  .footer__top {
    justify-self: end;
  }
  .footer__legal .footer__source {
    margin-left: auto;
  }
}

/* --------------------------------------------------------------------------
   Calm dark: a faint neutral wash instead of a coloured orb; no coloured glows or shadows
   -------------------------------------------------------------------------- */
:root:not([data-theme="light"]) .contact__orb {
  background: radial-gradient(circle at 35% 35%, rgba(var(--venue-preprint), 0.09), transparent 66%);
  opacity: 0.9;
}
:root:not([data-theme="light"]) .contact__email::after {
  background: var(--accent);
  box-shadow: none;
}
@media (hover: hover) and (pointer: fine) {
  :root:not([data-theme="light"]) .contact__link:hover .contact__link-icon {
    box-shadow: none;
  }
}