/* ???????????????????????????????????????????????????????????????
   PPQ � Premium Motion System (Vanilla CSS)
   Hanya transform & opacity untuk performa 60fps
   ??????????????????????????????????????????????????????????????? */

:root {
  --motion-duration: 0.7s;
  --motion-duration-fast: 0.35s;
  --motion-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --motion-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-ease-cinematic: cubic-bezier(0.33, 1, 0.68, 1);
  --motion-stagger: 0.08s;
  --reveal-distance: 2rem;
}

/* ?? REVEAL BASE STATES ??????????????????????????????????????? */

[data-reveal],
.reveal-item {
  opacity: 0;
  transition:
    opacity var(--motion-duration) var(--motion-ease),
    transform var(--motion-duration) var(--motion-ease),
    filter var(--motion-duration) var(--motion-ease);
  will-change: opacity, transform;
}

[data-reveal].is-visible,
.reveal-item.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}

/* Variants */
[data-reveal="fade"],
.reveal-fade { opacity: 0; }

[data-reveal="fade-up"],
.reveal-fade-up { transform: translateY(var(--reveal-distance)); }

[data-reveal="fade-down"],
.reveal-fade-down { transform: translateY(calc(var(--reveal-distance) * -1)); }

[data-reveal="fade-left"],
.reveal-fade-left { transform: translateX(calc(var(--reveal-distance) * -1)); }

[data-reveal="fade-right"],
.reveal-fade-right { transform: translateX(var(--reveal-distance)); }

[data-reveal="scale"],
.reveal-scale { transform: scale(0.94); }

[data-reveal="blur"],
.reveal-blur {
  filter: blur(0.75rem);
  transform: translateY(1.25rem) scale(0.97);
  opacity: 0;
}

/* Section title � cinematic text reveal */
.section-title {
  opacity: 0;
  filter: blur(0.625rem);
  transform: translateY(1.5rem);
  transition:
    opacity 0.85s var(--motion-ease-cinematic),
    transform 0.85s var(--motion-ease-cinematic),
    filter 0.85s var(--motion-ease-cinematic);
  will-change: opacity, transform, filter;
}

.section-heading.is-visible .section-title,
.section-title.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

.section-heading .section-divider {
  opacity: 0;
  transform: translateY(0.75rem);
  transition:
    opacity 0.7s var(--motion-ease-out) 0.15s,
    transform 0.7s var(--motion-ease-out) 0.15s;
}

.section-heading.is-visible .section-divider {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay via custom property */
[data-reveal].is-visible,
.reveal-item.is-visible {
  transition-delay: var(--reveal-delay, 0s);
}

/* ?? HERO ????????????????????????????????????????????????????? */

.hero {
  background: var(--navy);
  background-image: linear-gradient(
    135deg,
    #081e3b 0%,
    #0c2a52 35%,
    #081e3b 70%,
    #0a2447 100%
  );
  background-size: 200% 200%;
  animation: heroGradient 18s ease infinite;
}

@keyframes heroGradient {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}

.hero-deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.12;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.5) 0%, transparent 70%);
  animation: heroFloat 8s ease-in-out infinite;
  will-change: transform;
}

.hero-deco--1 {
  width: clamp(8rem, 18vw, 14rem);
  height: clamp(8rem, 18vw, 14rem);
  top: 12%;
  left: 8%;
  animation-delay: 0s;
}

.hero-deco--2 {
  width: clamp(5rem, 12vw, 9rem);
  height: clamp(5rem, 12vw, 9rem);
  bottom: 28%;
  right: 10%;
  animation-delay: -3s;
}

.hero-deco--3 {
  width: clamp(3rem, 8vw, 6rem);
  height: clamp(3rem, 8vw, 6rem);
  top: 55%;
  left: 72%;
  animation-delay: -5s;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0) translateX(0); }
  33%       { transform: translateY(-1.25rem) translateX(0.5rem); }
  66%       { transform: translateY(0.75rem) translateX(-0.5rem); }
}

.hero-content [data-reveal] {
  --reveal-distance: 1.75rem;
}

.hero-overlay-logo img {
  transition: transform 0.1s linear;
  will-change: transform;
}

.hero-title {
  opacity: 0;
  transform: translateY(1.5rem);
  transition:
    opacity 0.9s var(--motion-ease-out),
    transform 0.9s var(--motion-ease-out);
}

.hero-title.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ?? IMAGE REVEAL & HOVER ????????????????????????????????????? */

.img-reveal-wrap {
  overflow: hidden;
  border-radius: inherit;
}

.img-reveal {
  opacity: 0;
  transform: scale(0.95);
  filter: blur(0.5rem);
  transition:
    opacity var(--motion-duration) var(--motion-ease),
    transform var(--motion-duration) var(--motion-ease),
    filter var(--motion-duration) var(--motion-ease);
  will-change: opacity, transform, filter;
}

.img-reveal.is-visible,
.img-reveal.is-loaded {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

.img-reveal-wrap:hover .img-reveal,
.profil-image:hover img,
.sejarah-grid img:hover,
.ft3-gallery-item:hover img,
.pk-grid-card__media:hover img {
  transform: scale(1.03);
}

.profil-image img,
.sejarah-grid img,
.ft3-gallery-item img {
  transition: transform var(--motion-duration-fast) var(--motion-ease);
  will-change: transform;
}

.tilt-card {
  transform-style: preserve-3d;
  will-change: transform;
  transition:
    transform 0.2s var(--motion-ease-out),
    box-shadow var(--motion-duration-fast) var(--motion-ease),
    border-color var(--motion-duration-fast) var(--motion-ease);
}

@media (pointer: fine) and (min-width: 62em) {
  .tilt-card:hover {
    box-shadow: 0 1.125rem 2.5rem rgba(0, 0, 0, 0.16);
  }
}

.aktivitas-card,
.ppq-card {
  position: relative;
  border-radius: var(--radius-card, 0.875rem);
  transition:
    transform var(--motion-duration-fast) var(--motion-ease),
    box-shadow var(--motion-duration-fast) var(--motion-ease);
  will-change: transform;
}

.aktivitas-card .img-reveal-wrap,
.aktivitas-card > img {
  border: 2px solid rgba(201, 160, 55, 0.25);
  border-radius: 0.875rem;
  overflow: hidden;
  box-shadow: 0 0.75rem 1.875rem rgba(0, 0, 0, 0.08);
  transition:
    border-color var(--motion-duration-fast) var(--motion-ease),
    box-shadow var(--motion-duration-fast) var(--motion-ease);
}

.aktivitas-card:hover {
  transform: translateY(-0.375rem);
}

.aktivitas-card:hover .img-reveal-wrap,
.aktivitas-card:hover > img {
  border-color: #c9a037;
  box-shadow: 0 1.125rem 2.5rem rgba(0, 0, 0, 0.16);
}

.aktivitas-card:hover img {
  transform: scale(1.03);
}

.aktivitas-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 0.875rem;
  pointer-events: none;
  opacity: 0;
  box-shadow: 0 0 0 1px rgba(201, 168, 76, 0.35), 0 0 1.25rem rgba(201, 168, 76, 0.15);
  transition: opacity var(--motion-duration-fast) var(--motion-ease);
}

.aktivitas-card:hover::after {
  opacity: 1;
}

.foto-card {
  transition:
    transform var(--motion-duration-fast) var(--motion-ease),
    box-shadow var(--motion-duration-fast) var(--motion-ease);
}

.foto-card:hover {
  transform: translateY(-0.25rem);
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.18);
}

/* ?? BUTTON MICRO-INTERACTIONS ?????????????????????????????????? */

.ppq-button,
.btn-nav,
.btn-susunan,
.pk-btn-visit,
.pk-btn-ig,
.pk-arrow {
  transition:
    transform var(--motion-duration-fast) var(--motion-ease),
    background-color var(--motion-duration-fast) ease,
    color var(--motion-duration-fast) ease,
    box-shadow var(--motion-duration-fast) var(--motion-ease),
    border-color var(--motion-duration-fast) ease;
  min-height: 2.75rem;
  min-width: 2.75rem;
}

.ppq-button:hover,
.btn-susunan:hover {
  transform: scale(1.04);
  box-shadow: 0 0.5rem 1.25rem rgba(0, 0, 0, 0.2);
}

.btn-nav:hover {
  transform: scale(1.08);
  box-shadow: 0 0.375rem 1rem rgba(201, 168, 76, 0.35);
}

.pk-btn-visit:hover,
.pk-btn-ig:hover,
.pk-arrow:hover {
  transform: scale(1.05);
  box-shadow: 0 0.375rem 1rem rgba(255, 255, 255, 0.15);
}

.ppq-button:active,
.btn-nav:active,
.btn-susunan:active,
.pk-btn-visit:active,
.pk-btn-ig:active,
.pk-arrow:active {
  transform: scale(0.96);
}

/* ?? NAVBAR SCROLL GLASS ??????????????????????????????????????? */

.header .navbar {
  transition:
    background 0.45s var(--motion-ease),
    backdrop-filter 0.45s var(--motion-ease),
    box-shadow 0.45s var(--motion-ease),
    border-color 0.45s var(--motion-ease),
    padding 0.45s var(--motion-ease),
    transform 0.45s var(--motion-ease);
}

.header.scrolled .navbar {
  background: rgba(8, 30, 59, 0.78);
  backdrop-filter: blur(1.375rem) saturate(1.5);
  -webkit-backdrop-filter: blur(1.375rem) saturate(1.5);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 0.375rem 1.75rem rgba(0, 0, 0, 0.32);
  padding-block: 0.125rem;
  transform: translateY(0);
}

.header.compact .navbar {
  padding-block: 0;
  background: rgba(8, 30, 59, 0.88);
  box-shadow: 0 0.25rem 1.25rem rgba(0, 0, 0, 0.38);
}

.header.compact .logo {
  width: 3rem;
  height: 3rem;
}

.header.compact .nav-link {
  font-size: clamp(0.75rem, 1.1vw, 0.875rem);
}

.header.scrolled .logo {
  width: 3.5rem;
  height: 3.5rem;
  transition: width 0.45s var(--motion-ease), height 0.45s var(--motion-ease);
}

.header .logo {
  transition: width 0.45s var(--motion-ease), height 0.45s var(--motion-ease);
}

/* ?? SHIMMER / SKELETON ????????????????????????????????????????? */

.shimmer-wrap {
  position: relative;
  overflow: hidden;
  background: #e8e8e8;
}

.shimmer-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.55) 50%,
    transparent 100%
  );
  transform: translateX(-100%);
  animation: shimmer 1.4s ease infinite;
  pointer-events: none;
}

.shimmer-wrap.is-loaded::after {
  animation: none;
  opacity: 0;
}

@keyframes shimmer {
  100% { transform: translateX(100%); }
}

.foto-placeholder {
  background: linear-gradient(135deg, #d4d4d4 0%, #ebebeb 50%, #d4d4d4 100%);
  background-size: 200% 100%;
  animation: shimmerBg 1.5s ease infinite;
}

@keyframes shimmerBg {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* ?? SECTION DIVIDER ANIMATION ?????????????????????????????????? */

.section-divider .diamond,
.deko-diamond {
  transition: transform var(--motion-duration-fast) var(--motion-ease);
}

.section-heading.is-visible .diamond {
  transform: rotate(45deg) scale(1);
}

/* ?? FOCUS STATES (Accessibility) ??????????????????????????????? */

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--gold, #d4af37);
  outline-offset: 3px;
  border-radius: 4px;
}

.nav-link:focus-visible {
  outline-offset: 6px;
}

/* ?? REDUCED MOTION ????????????????????????????????????????????? */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal],
  .reveal-item,
  .img-reveal,
  .hero-title,
  .section-title {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }

  .hero {
    animation: none;
    background-size: auto;
  }

  .hero-deco {
    animation: none;
  }

  .hero-overlay-logo img {
    transform: none !important;
  }

  .pk-grid-card,
  .aktivitas-card,
  .foto-card {
    transform: none !important;
  }

  .shimmer-wrap::after,
  .foto-placeholder {
    animation: none;
  }
}