/* ==========================================================================
   Samarpak Labs — ScreenSafe product page: header dock + 3D scroll motion
   --------------------------------------------------------------------------
   Loaded only by products/screensafe/index.html, after styles.css. Every
   selector is scoped to `.page-screensafe` (set on <body>) so the rest of the
   site keeps its original header and motion.

   Without JavaScript the `.js` gate in <head> is absent, so the page renders
   fully static: the dock is a plain centred link row and nothing is hidden.
   ========================================================================== */

/* --- Header: brand left · centred dock · CTA right (desktop) -------------- */

.page-screensafe .site-header--dock .site-header__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1.25rem;
}

.page-screensafe .site-header--dock .brand {
  margin-right: 0;
  justify-self: start;
}

.page-screensafe .site-header--dock .header__cta {
  justify-self: end;
}

/* The centred dock: a glass capsule holding the four primary links. */
.page-screensafe .dock {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border-radius: var(--r-full);
  background: rgba(16, 20, 28, 0.55);
  border: 1px solid var(--line-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 18px 40px -26px rgba(0, 0, 0, 0.9);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  justify-self: center;
}

/* Sliding highlight that glides to the hovered / focused / current link. */
.page-screensafe .dock__glow {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: 0;
  border-radius: var(--r-full);
  background: linear-gradient(135deg, rgba(76, 141, 255, 0.4), rgba(105, 225, 255, 0.14));
  box-shadow:
    0 0 18px rgba(76, 141, 255, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 620ms var(--ease-out),
    width 620ms var(--ease-out),
    opacity 300ms ease;
}

.page-screensafe .dock__glow.is-on {
  opacity: 1;
}

.page-screensafe .dock__link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.05rem;
  border-radius: var(--r-full);
  font-size: 0.875rem;
  font-weight: 550;
  letter-spacing: -0.005em;
  color: var(--ink-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 300ms ease;
}

.page-screensafe .dock__link:hover,
.page-screensafe .dock__link:focus-visible {
  color: var(--white);
}

.page-screensafe .dock__link[aria-current="page"] {
  color: var(--white);
}

.page-screensafe .dock__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Dock intro: links rise in one by one with a light 3D hinge. */
@keyframes dock-link-in {
  from {
    opacity: 0;
    transform: perspective(600px) translate3d(0, -12px, 0) rotateX(-55deg);
  }
  to {
    opacity: 1;
    transform: perspective(600px) translate3d(0, 0, 0) rotateX(0deg);
  }
}

.js .page-screensafe .dock__link {
  opacity: 0;
}

.js .page-screensafe.is-ready .dock__link {
  animation: dock-link-in 760ms var(--ease-out) forwards;
  animation-delay: calc(180ms + var(--i, 0) * 80ms);
}

.js .page-screensafe .site-header--dock .brand,
.js .page-screensafe .site-header--dock .header__cta {
  opacity: 0;
  transform: translate3d(0, -10px, 0);
}

.js .page-screensafe.is-ready .site-header--dock .brand,
.js .page-screensafe.is-ready .site-header--dock .header__cta {
  animation: header-side-in 700ms var(--ease-out) forwards;
}

.js .page-screensafe.is-ready .site-header--dock .header__cta {
  animation-delay: 420ms;
}

.js .page-screensafe.is-ready .site-header--dock .brand {
  animation-delay: 60ms;
}

@keyframes header-side-in {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.page-screensafe .site-header--dock.is-stuck .dock {
  background: rgba(16, 20, 28, 0.78);
}

/* --- Mobile: brand on top, dock centred underneath ----------------------- */

@media (max-width: 939px) {
  .page-screensafe {
    --header-h: 124px;
  }

  .page-screensafe .site-header--dock .site-header__inner {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 0.75rem;
    min-height: 0;
    padding-block: 0.85rem 0.6rem;
  }

  .page-screensafe .site-header--dock .brand {
    justify-self: center;
  }

  .page-screensafe .dock {
    max-width: 100%;
  }

  .page-screensafe .dock__link {
    padding: 0.5rem 0.7rem;
    font-size: 0.8125rem;
  }
}

@media (max-width: 380px) {
  .page-screensafe .dock__link {
    padding: 0.45rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* --- Scroll progress hairline ------------------------------------------- */

.page-screensafe .scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 140;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 12px rgba(105, 225, 255, 0.7);
  pointer-events: none;
}

/* --- Title: letters flip in one by one ---------------------------------- */

.page-screensafe .pd__title .char {
  display: inline-block;
  transform-origin: 50% 100%;
}

.js .page-screensafe.is-ready .pd__title .char {
  animation: char-in 900ms var(--ease-out) both;
  animation-delay: calc(140ms + var(--i, 0) * 42ms);
}

@keyframes char-in {
  from {
    opacity: 0;
    transform: perspective(700px) translate3d(0, 0.35em, 0) rotateX(-80deg);
  }
  to {
    opacity: 1;
    transform: perspective(700px) translate3d(0, 0, 0) rotateX(0deg);
  }
}

/* --- Hero artwork: scroll-driven 3D stage with depth chips -------------- */

.page-screensafe .pd__stage {
  --sp: 0;
  --px: 0deg;
  --py: 0deg;
  position: relative;
  transform-style: preserve-3d;
  transform: perspective(1400px)
    rotateX(calc(var(--sp) * 7deg + var(--py)))
    rotateY(var(--px));
  transition: transform 500ms var(--ease-out);
  will-change: transform;
}

.page-screensafe .pd__stage .pd__art {
  transform: translate3d(0, 0, 0);
  box-shadow:
    0 40px 80px -40px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(255, 255, 255, 0.03),
    0 0 80px -20px rgba(76, 141, 255, 0.35);
}

.page-screensafe .depth-chip {
  --d: 1;
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.8rem;
  border-radius: var(--r-full);
  border: 1px solid var(--line-strong);
  background: rgba(12, 16, 24, 0.78);
  box-shadow: 0 16px 36px -18px rgba(0, 0, 0, 0.9);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-soft);
  white-space: nowrap;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transform: translate3d(0, calc(var(--sp, 0) * var(--d) * -46px), calc(var(--d) * 40px));
  transition: transform 400ms var(--ease-out);
  will-change: transform;
}

.page-screensafe .depth-chip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

.page-screensafe .depth-chip--a {
  top: 9%;
  left: -6%;
}

.page-screensafe .depth-chip--b {
  top: 46%;
  right: -7%;
}

.page-screensafe .depth-chip--c {
  top: 74%;
  right: -2%;
}

@media (max-width: 700px) {
  .page-screensafe .depth-chip {
    display: none;
  }
}

/* --- Section reveals: rise and hinge in 3D ------------------------------ */

.page-screensafe.js [data-reveal] {
  transform: perspective(1100px) translate3d(0, 46px, 0) rotateX(12deg);
  transform-origin: 50% 0%;
  transition:
    opacity 900ms var(--ease-out),
    transform 1000ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.page-screensafe.js [data-reveal].is-revealed {
  transform: perspective(1100px) translate3d(0, 0, 0) rotateX(0deg);
}

/* Feature cards: pointer-driven 3D tilt once revealed. */
.page-screensafe.js .feature.is-revealed {
  --rx: 0deg;
  --ry: 0deg;
  --gx: 50%;
  --gy: 50%;
  transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry));
  transition:
    transform 420ms var(--ease-out),
    border-color var(--tr),
    background-color var(--tr);
}

.page-screensafe .feature::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    260px circle at var(--gx) var(--gy),
    rgba(105, 225, 255, 0.14),
    transparent 70%
  );
  transition: opacity 300ms ease;
}

.page-screensafe .feature.is-tilting::after {
  opacity: 1;
}

.page-screensafe .feature > * {
  position: relative;
  z-index: 1;
}

/* --- Next action panel: gentle float on scroll --------------------------- */

.page-screensafe .next-action {
  transform-style: preserve-3d;
}

/* --- Reduced motion: keep the layout, drop the movement ------------------ */

@media (prefers-reduced-motion: reduce) {
  .page-screensafe .dock__glow,
  .page-screensafe .depth-chip,
  .page-screensafe .pd__stage {
    transition: none !important;
  }

  .page-screensafe .pd__stage {
    transform: none;
  }

  .page-screensafe .depth-chip {
    transform: none;
  }

  .js .page-screensafe .dock__link,
  .js .page-screensafe .site-header--dock .brand,
  .js .page-screensafe .site-header--dock .header__cta,
  .js .page-screensafe .pd__title .char {
    animation: none !important;
    opacity: 1;
    transform: none;
  }

  .page-screensafe.js [data-reveal],
  .page-screensafe.js .feature.is-revealed {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-screensafe .feature.is-revealed {
    transform: none;
  }
}