/* Hallmark · enrichment: scroll prolog · Severni pol -> Beograd
 * Koristi ilustracije iz assets/animacija.
 * Sajt radi normalno i kad je ovaj fajl uklonjen.
 */

body.intro-on { overflow: hidden; }

.intro {
  position: fixed;
  inset: 0;
  z-index: 90;
  overflow: hidden;
  background: radial-gradient(120% 90% at 76% 16%, var(--intro-red) 0%, var(--intro-red-2) 48%, var(--intro-red-deep) 100%);
  color: var(--intro-cream);
  font-family: var(--font-body);
}

.intro[hidden] { display: none; }

/* ============================================================
   Ukrasi
   ============================================================ */

.intro__sky { position: absolute; inset: 0; pointer-events: none; }

.uk { position: absolute; height: auto; }

.uk--lampice {
  top: 0; left: -2%;
  width: 104%;
  animation: njise 7s var(--ease-in-out) infinite;
  transform-origin: 50% 0;
}


.uk--jelka {
  bottom: -2%; left: 1%;
  width: clamp(96px, 14vw, 215px);
  animation: dise 6.5s var(--ease-in-out) infinite;
}

.uk--pokloni {
  bottom: -4%; right: 1%;
  width: clamp(130px, 19vw, 290px);
  animation: dise 7.5s var(--ease-in-out) infinite;
  animation-delay: -2s;
}

.uk--poklon {
  bottom: 4%; left: 22%;
  width: clamp(60px, 8vw, 118px);
  animation: lebdi 5.8s var(--ease-in-out) infinite;
  animation-delay: -1.2s;
}

@keyframes njise {
  0%, 100% { transform: rotate(-1.4deg); }
  50%      { transform: rotate(1.4deg); }
}

@keyframes dise {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.035); }
}

@keyframes lebdi {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-12px) rotate(3deg); }
}

/* sneg */
.snow { position: absolute; inset: 0; }
.snow i {
  position: absolute;
  top: -10px;
  border-radius: 50%;
  background: var(--intro-snow);
  opacity: 0.75;
  animation: pada linear infinite;
}
@keyframes pada {
  from { transform: translate3d(0, -10vh, 0); }
  to   { transform: translate3d(var(--drift, 14px), 112vh, 0); }
}

/* ============================================================
   Staza
   ============================================================ */

.route { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.route path {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 2 14;
}
/* cela staza od pola do Beograda, uvek vidljiva */
.route__cela { stroke: color-mix(in oklch, var(--intro-cream) 34%, transparent); }
/* deo koji su sanke vec presle */
.route__predjena { stroke: color-mix(in oklch, var(--intro-snow) 85%, transparent); }

/* ============================================================
   Stanice: Severni pol i Beograd
   ============================================================ */

.stop {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2px, 0.6vw, 8px);
}
.stop img { display: block; width: 100%; height: auto; }

.stop__ime {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.3vw, 1.85rem);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  white-space: nowrap;
  color: var(--intro-snow);
  text-shadow:
    0 2px 10px color-mix(in oklch, var(--intro-red-deep) 90%, transparent),
    0 0 26px color-mix(in oklch, var(--intro-red-deep) 70%, transparent);
}

.stop--np {
  top: 8%; right: 4%;
  width: clamp(124px, 19vw, 280px);
  filter: drop-shadow(0 22px 36px color-mix(in oklch, var(--intro-red-deep) 70%, transparent));
}

.stop--bg {
  top: 62%; left: 25%;
  width: clamp(124px, 19vw, 280px);
  transform: translate(-50%, -50%) scale(0.5);
  opacity: 0;
  filter: drop-shadow(0 22px 36px color-mix(in oklch, var(--intro-red-deep) 70%, transparent));
}

/* ============================================================
   Sanke
   ============================================================ */

.sleigh {
  position: absolute;
  top: 0; left: 0;
  width: clamp(118px, 16vw, 238px);
  height: auto;
  transform-origin: 50% 50%;
  will-change: transform;
  filter: drop-shadow(0 12px 20px color-mix(in oklch, var(--intro-red-deep) 60%, transparent));
}

/* ============================================================
   Tekst i kontrole
   ============================================================ */

.intro__copy {
  position: absolute;
  left: 50%; bottom: clamp(5%, 7vh, 9%);
  width: min(42rem, 86vw);
  transform: translateX(-50%);
  text-align: center;
  z-index: 2;
}

.intro__lede {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.6vw, 2.4rem);
  font-weight: 600;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--intro-cream);
  text-shadow: 0 2px 18px color-mix(in oklch, var(--intro-red-deep) 80%, transparent);
  transition: opacity var(--dur-mid) var(--ease-out);
}

.intro__hint {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: clamp(0.8rem, 1.7vw, 0.95rem);
  letter-spacing: var(--tracking-wide);
  color: color-mix(in oklch, var(--intro-cream) 80%, transparent);
  text-shadow: 0 2px 14px color-mix(in oklch, var(--intro-red-deep) 80%, transparent);
}

.intro__arrow {
  position: relative;
  flex: none;
  width: 14px; height: 22px;
  border: 2px solid currentColor;
  border-radius: 8px;
}
.intro__arrow::after {
  content: "";
  position: absolute;
  left: 50%; top: 4px;
  width: 2px; height: 5px;
  background: currentColor;
  border-radius: 1px;
  transform: translateX(-50%);
  animation: tockic 1.8s var(--ease-in-out) infinite;
}
@keyframes tockic {
  0%, 100% { transform: translate(-50%, 0); opacity: 1; }
  60%      { transform: translate(-50%, 8px); opacity: 0.2; }
}

/* ============================================================
   Uputstvo na sredini ekrana, samo na telefonu
   ============================================================ */

.intro__start { display: none; }

.intro__strelica {
  width: 20px; height: 20px;
  border-left: 3px solid currentColor;
  border-top: 3px solid currentColor;
  transform: rotate(45deg);
  animation: klizi 1.7s var(--ease-in-out) infinite;
}

@keyframes klizi {
  0%, 100% { transform: rotate(45deg) translate(0, 0);     opacity: 0.45; }
  50%      { transform: rotate(45deg) translate(6px, -6px); opacity: 1; }
}

.intro__skip {
  position: absolute;
  right: var(--gutter);
  bottom: var(--gutter);
  z-index: 3;
  min-height: 44px;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  color: var(--intro-cream);
  background: color-mix(in oklch, var(--intro-red-deep) 45%, transparent);
  border: 1px solid color-mix(in oklch, var(--intro-cream) 42%, transparent);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.intro__skip:hover  { background: color-mix(in oklch, var(--intro-cream) 18%, transparent); }
.intro__skip:active { transform: translateY(1px); }
.intro__skip:focus-visible { outline: 2px solid var(--intro-cream); outline-offset: 3px; }

/* ============================================================
   Zavrsni zum: Beograd raste i prelazi u sajt
   ============================================================ */

.intro.is-zoom .intro__copy,
.intro.is-zoom .intro__skip,
.intro.is-zoom .intro__sky,
.intro.is-zoom .route { opacity: 0; transition: opacity 300ms var(--ease-out); }

/* ============================================================
   Telefon
   ============================================================ */

@media (max-width: 48rem) {
  /* kugle se razmicu po visini, jer sirine nema */
  .stop--np { top: 5%;  right: 4%;  width: 37vw; }
  .stop--bg { top: 45%; left: 25%;  width: 35vw; }

  /* ukrasi se sklanjaju sa puta tekstu i dugmetu */
  .uk--jelka   { width: 21vw; opacity: 0.85; }
  .uk--pokloni { width: 27vw; opacity: 0.85; }
  .uk--poklon  { display: none; }
  .uk--lampice { width: 118%; left: -9%; }

  /* tekst dobija svoj prostor na dnu */
  .intro__copy { bottom: 17%; width: 88vw; }
  .intro__lede { font-size: clamp(1.15rem, 5.2vw, 1.6rem); }

  /* na telefonu uputstvo stoji na sredini ekrana, pa donja poruka nije potrebna */
  .intro__hint { display: none; }

  .intro__start {
    position: absolute;
    left: 50%; top: 50%;
    z-index: 4;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    width: min(78vw, 21rem);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    color: var(--intro-cream);
    background: color-mix(in oklch, var(--intro-red-deep) 64%, transparent);
    border: 1px solid color-mix(in oklch, var(--intro-cream) 22%, transparent);
    border-radius: var(--radius-md);
    backdrop-filter: blur(3px);
  }

  .intro__start-glavno {
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 4.6vw, 1.35rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--intro-snow);
  }

  .intro__start-sitno {
    font-size: clamp(0.78rem, 3.4vw, 0.92rem);
    line-height: 1.35;
    color: color-mix(in oklch, var(--intro-cream) 82%, transparent);
  }

  .intro__skip {
    left: 50%; right: auto;
    bottom: 4%;
    transform: translateX(-50%);
  }
  .intro__skip:active { transform: translateX(-50%) translateY(1px); }
}

/* uzak i nizak ekran, stariji telefoni */
@media (max-width: 26rem) {
  .stop--np { top: 4%; width: 40vw; }
  .stop--bg { top: 43%; left: 22%; width: 38vw; }
  .intro__copy { bottom: 19%; }
  .uk--jelka   { width: 24vw; }
  .uk--pokloni { width: 30vw; }
}

@media (prefers-reduced-motion: reduce) {
  .intro { display: none !important; }
}