/* VYRIY — single-viewport studio splash
   World: night indigo / bone parchment / ember gold
   Display: Forum (carved Roman caps) · Small text: Vollkorn */

:root {
  --night-deep: #070B16;
  --night: #0B1120;
  --night-soft: #131B31;
  --night-band: #1A2440;
  --bone: #E9DFC9;
  --bone-dim: #B3A98F;
  --bone-faint: #837C68;
  --ember: #E0A458;
  --ember-deep: #B87A38;
  --kalyna: #A63A2E;
  --display: "Forum", "Times New Roman", serif;
  --prose: "Vollkorn", Georgia, serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --px: 0;
  --py: 0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { background: var(--night-deep); }

body {
  font-family: var(--prose);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--bone);
  background: var(--night-deep);
  overflow-x: hidden;
}

::selection { background: var(--ember); color: var(--night-deep); }

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.5rem 1rem;
  background: var(--night-soft);
  color: var(--bone);
  font-family: var(--display);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: top 0.25s var(--ease-out);
}
.skip-link:focus-visible { top: 1rem; }

/* ---------- sky ---------- */

.sky {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(140% 90% at 78% -10%, var(--night-band) 0%, transparent 55%),
    linear-gradient(180deg, var(--night) 0%, var(--night-deep) 46%, var(--night-deep) 78%, #0D0F1A 100%);
}

.sky-layers { position: absolute; inset: 0; }

/* the birds' way — the migration road across the night */
.birds-way {
  position: absolute;
  inset: -12% -18%;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(233, 223, 201, 0.028) 42%,
    rgba(233, 223, 201, 0.075) 50%,
    rgba(224, 164, 88, 0.05) 55%,
    rgba(233, 223, 201, 0.026) 62%,
    transparent 74%
  );
  transform: translate3d(calc(var(--px) * -6px), calc(var(--py) * -4px), 0);
}

.stars { position: absolute; inset: -6%; }
.stars[data-layer="far"]  { transform: translate3d(calc(var(--px) * -5px),  calc(var(--py) * -3px),  0); }
.stars[data-layer="mid"]  { transform: translate3d(calc(var(--px) * -11px), calc(var(--py) * -7px),  0); }
.stars[data-layer="near"] { transform: translate3d(calc(var(--px) * -19px), calc(var(--py) * -12px), 0); }

.star {
  position: absolute;
  border-radius: 50%;
  background: var(--bone);
  animation: twinkle var(--tw-dur, 5s) ease-in-out var(--tw-delay, 0s) infinite;
}
.star.ember { background: var(--ember); }

@keyframes twinkle {
  0%, 100% { opacity: var(--tw-hi, 0.9); }
  50%      { opacity: var(--tw-lo, 0.25); }
}

/* the living flock */
.flock {
  position: absolute;
  top: 4%;
  left: -4%;
  width: min(58vw, 760px);
  overflow: visible;
  transform: translate3d(calc(var(--px) * -26px), calc(var(--py) * -16px), 0);
}

/* px on SVG children = user units, so the path is deterministic:
   enters beyond the left sky edge, exits high right, loop jump off-screen */
.flock-drift {
  /* negative delay: the flock is already mid-sky when the page arrives */
  animation: flock-drift 110s linear -30s infinite;
}

@keyframes flock-drift {
  0%   { transform: translate3d(-520px, 150px, 0) scale(0.9); }
  100% { transform: translate3d(1420px, -380px, 0) scale(1.06); }
}

.bird { animation: bird-bob var(--bob-dur, 6s) ease-in-out var(--bob-delay, 0s) infinite; }

@keyframes bird-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}

.wing {
  transform-box: fill-box;
  transform-origin: var(--pivot);
  animation: wing-beat var(--beat-dur, 1.6s) ease-in-out var(--beat-delay, 0s) infinite;
}
.wing.left  { --dir: -1; }
.wing.right { --dir: 1; }

@keyframes wing-beat {
  0%, 100% { transform: rotate(calc(var(--dir) * 4deg)); }
  50%      { transform: rotate(calc(var(--dir) * -14deg)); }
}

/* warm land beyond, barely showing */
.horizon {
  position: absolute;
  inset: auto 0 0 0;
  height: 22vh;
  background:
    radial-gradient(120% 130% at 50% 118%, rgba(224, 164, 88, 0.16) 0%, rgba(184, 122, 56, 0.07) 38%, transparent 66%);
}
.horizon::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 4%, rgba(224, 164, 88, 0.5) 38%, rgba(224, 164, 88, 0.65) 50%, rgba(224, 164, 88, 0.5) 62%, transparent 96%);
}

/* ---------- hero: the mark leads ---------- */

.hero {
  position: relative;
  z-index: 2;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(3.5rem, 8vh, 5rem) 1.25rem;
}

.hero-mark {
  width: clamp(150px, 26vh, 270px);
}
.hero-mark svg {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 8px 42px rgba(7, 11, 22, 0.85));
}

.nameplate {
  margin-top: clamp(1.25rem, 3.5vh, 2.25rem);
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 5.75rem);
  line-height: 1;
  letter-spacing: 0.13em;
  padding-left: 0.13em; /* optically recenter tracked caps */
  color: var(--bone);
  text-shadow: 0 2px 50px rgba(7, 11, 22, 0.9);
}

.descriptor {
  margin-top: clamp(0.8rem, 2vh, 1.2rem);
  font-family: var(--display);
  font-size: clamp(0.85rem, 1.6vw, 1.05rem);
  letter-spacing: 0.46em;
  padding-left: 0.46em;
  text-transform: uppercase;
  color: var(--ember);
}

.dict {
  margin-top: clamp(1.5rem, 4vh, 2.5rem);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--bone-faint);
}
.dict [lang="uk"] { color: var(--bone-dim); }

.socials {
  margin-top: clamp(1.6rem, 4.5vh, 2.6rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.4rem 1rem;
  max-width: min(92vw, 800px);
  font-family: var(--display);
  font-size: 0.82rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.socials a {
  color: var(--bone-dim);
  text-decoration: none;
  padding: 0.35rem 0.1rem;
  transition: color 0.35s var(--ease-out);
}
.socials a:hover,
.socials a:focus-visible { color: var(--ember); }

.soc-sep { color: var(--bone-faint); }

/* ---------- entrance ---------- */

.hero > * {
  opacity: 0;
  transform: translateY(22px);
  filter: blur(6px);
}

body.arrived .hero > * {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  transition:
    opacity 1.1s var(--ease-out),
    transform 1.1s var(--ease-out),
    filter 1.1s var(--ease-out);
}
body.arrived .hero-mark  { transition-delay: 0.1s; }
body.arrived .nameplate  { transition-delay: 0.32s; }
body.arrived .descriptor { transition-delay: 0.52s; }
body.arrived .dict       { transition-delay: 0.68s; }
body.arrived .socials    { transition-delay: 0.82s; }

.sky-layers { opacity: 0; }
body.arrived .sky-layers { opacity: 1; transition: opacity 1.8s ease-out; }

.site-foot { opacity: 0; }
body.arrived .site-foot { opacity: 1; transition: opacity 1.4s ease-out 1s; }

/* ---------- footer (inside the viewport) ---------- */

.site-foot {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 3;
  padding: 1.1rem 1.5rem 1.2rem;
  text-align: center;
}

.site-foot p {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--bone-faint);
}

/* ---------- small screens ---------- */

@media (max-width: 560px) {
  .flock { width: 92vw; top: 7%; }
  .nameplate { letter-spacing: 0.1em; padding-left: 0.1em; }
  .socials { gap: 0.7rem; letter-spacing: 0.16em; font-size: 0.78rem; }
}

@media (max-height: 480px) {
  .hero-mark { width: clamp(110px, 34vh, 160px); }
  .dict { display: none; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .star, .bird, .wing, .flock-drift { animation: none !important; }
  .hero > *, .sky-layers, .site-foot {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
  .birds-way, .stars, .flock { transform: none !important; }
  .flock-drift { transform: translate3d(330px, -40px, 0) !important; }
  .hero-mark svg { filter: none; }
}