/* ═══════════════════════════════════════
   STOJILJKOVIĆ STUDIO — Premium Polish
   Loader · Reveals · Micro-interactions
═══════════════════════════════════════ */

/* ── 1. PAGE LOADER ── */
#ss-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #0D0D0D;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.7s;
}
#ss-loader.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.ss-loader-mark {
  font-family: 'Cormorant Garamond', serif;
  font-size: 42px;
  font-weight: 300;
  letter-spacing: 0.35em;
  color: #C5A059;
  text-indent: 0.35em;
  opacity: 0;
  animation: ssMarkIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}
@keyframes ssMarkIn {
  from { opacity: 0; transform: translateY(12px); letter-spacing: 0.6em; }
  to   { opacity: 1; transform: translateY(0);    letter-spacing: 0.35em; }
}
.ss-loader-bar {
  width: 140px;
  height: 1px;
  background: rgba(197, 160, 89, 0.15);
  overflow: hidden;
  position: relative;
}
.ss-loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #C5A059;
  transform: scaleX(0);
  transform-origin: left;
  animation: ssBar 1.1s cubic-bezier(0.65, 0, 0.35, 1) 0.25s forwards;
}
@keyframes ssBar { to { transform: scaleX(1); } }

/* ── 2. PAGE ENTRANCE ── */
body.ss-ready main,
body.ss-ready > section,
body.ss-ready .page-header {
  animation: ssPageIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes ssPageIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 3. SCROLL REVEALS (refined easing + stagger) ── */
.reveal {
  opacity: 0;
  transform: translateY(38px);
  transition:
    opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Directional variants */
.reveal-left  { transform: translateX(-46px); }
.reveal-right { transform: translateX(46px); }
.reveal-left.visible,
.reveal-right.visible { transform: translateX(0); }

.reveal-scale { transform: scale(0.94); opacity: 0; }
.reveal-scale.visible { transform: scale(1); opacity: 1; }

/* Auto-stagger children of a .stagger container */
.stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.stagger.visible > * { opacity: 1; transform: translateY(0); }
.stagger.visible > *:nth-child(1) { transition-delay: 0.00s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.08s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.16s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.24s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.32s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.40s; }
.stagger.visible > *:nth-child(7) { transition-delay: 0.48s; }
.stagger.visible > *:nth-child(8) { transition-delay: 0.56s; }
.stagger.visible > *:nth-child(n+9) { transition-delay: 0.62s; }

/* Line-by-line heading reveal.
   Padding + negative margin give diacritics (Č Š Ž Ć Đ) room
   so the mask never clips them. */
.line-mask {
  display: block;
  overflow: hidden;
  padding-top: 0.18em;
  margin-top: -0.18em;
}
.line-mask > span {
  display: block;
  transform: translateY(110%);
  transition: transform 1.05s cubic-bezier(0.16, 1, 0.3, 1);
}
.visible .line-mask > span,
.line-mask.visible > span { transform: translateY(0); }

/* ── 4. IMAGE LOAD FADE ── */
img[data-ss-fade] {
  opacity: 0;
  filter: blur(12px);
  transform: scale(1.03);
  transition:
    opacity 0.9s ease,
    filter 0.9s ease,
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
img[data-ss-fade].loaded {
  opacity: 1;
  filter: blur(0);
  transform: scale(1);
}

/* Skeleton shimmer behind loading media */
.ss-skeleton {
  position: relative;
  background: #1a1a1a;
  overflow: hidden;
}
.ss-skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 20%,
    rgba(197, 160, 89, 0.07) 50%,
    transparent 80%
  );
  transform: translateX(-100%);
  animation: ssShimmer 1.6s infinite;
}
@keyframes ssShimmer { to { transform: translateX(100%); } }
.ss-skeleton.loaded::after { display: none; }

/* ── 5. BUTTON MICRO-INTERACTIONS ── */
.btn-gold,
.btn-outline,
.nav-cta,
button[type="submit"] {
  position: relative;
  overflow: hidden;
  transition:
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.4s ease,
    color 0.4s ease,
    border-color 0.4s ease;
}
.btn-gold::before,
.btn-outline::before,
.nav-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
  pointer-events: none;
}
.btn-gold:hover::before,
.btn-outline:hover::before,
.nav-cta:hover::before {
  width: 320px;
  height: 320px;
}
.btn-gold:hover,
.nav-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(197, 160, 89, 0.3);
}
.btn-outline:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}
.btn-gold:active,
.btn-outline:active,
.nav-cta:active { transform: translateY(-1px); }

/* ── 6. LINK UNDERLINE SWEEP ── */
.nav-links a,
.footer-col ul li a,
.footer-bottom a {
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: #C5A059;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ── 7. CARD HOVER LIFT ── */
.service-card,
.price-card,
.value-card,
.team-card,
.eq-card,
.p-item,
.masonry-item {
  transition:
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.5s ease;
}
.service-card:hover,
.price-card:hover,
.value-card:hover,
.team-card:hover,
.eq-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

/* Portfolio image zoom on hover */
.p-item,
.masonry-item {
  overflow: hidden;
}
.p-item img,
.masonry-item img {
  transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s ease;
}
.p-item:hover img,
.masonry-item:hover img {
  transform: scale(1.07);
  filter: brightness(1.06);
}

/* ── 8. SCROLL PROGRESS BAR ── */
#ss-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: transparent;
  z-index: 200;
  pointer-events: none;
}
#ss-progress > i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #C5A059, #D4B47A);
  transition: width 0.12s linear;
}

/* ── 9. BACK TO TOP ── */
#back-to-top {
  opacity: 0;
  transform: translateY(14px) scale(0.9);
  transition:
    opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
}

/* ── 10. FORM FIELD FOCUS ── */
input, textarea, select {
  transition:
    border-color 0.4s ease,
    background 0.4s ease,
    box-shadow 0.4s ease;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: rgba(197, 160, 89, 0.7) !important;
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.1);
}

/* Accessible keyboard focus */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #C5A059;
  outline-offset: 3px;
}

/* ── 11. LIGHTBOX POLISH ── */
#lightbox img {
  transform: scale(0.94);
  opacity: 0;
  transition:
    transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.5s ease;
}
#lightbox.open img,
#lightbox[style*="opacity: 1"] img {
  transform: scale(1);
  opacity: 1;
}

/* ── 12. COOKIE BANNER SLIDE ── */
#cookie-banner {
  transform: translateY(100%);
  animation: ssCookieIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) 1.4s forwards;
  box-shadow: 0 -14px 40px rgba(0, 0, 0, 0.5);
}
@keyframes ssCookieIn { to { transform: translateY(0); } }

@media (max-width: 700px) {
  #cookie-banner {
    flex-direction: column;
    align-items: stretch !important;
    text-align: center;
    gap: 14px !important;
    padding: 20px 20px calc(20px + env(safe-area-inset-bottom)) !important;
    line-height: 1.6;
  }
  #cookie-banner button { width: 100%; padding: 14px 24px !important; }
}

/* ── 13. PARALLAX ── */
[data-parallax] { will-change: transform; }

/* ── 14. SECTION DIVIDER LINE DRAW ── */
.section-title + .divider,
.divider-line {
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
.visible .divider-line,
.divider-line.visible { transform: scaleX(1); }

/* ── 15. REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal,
  .stagger > *,
  .line-mask > span {
    opacity: 1 !important;
    transform: none !important;
  }
  #ss-loader { display: none; }
}