/* ==========================================================================
   Scroll Progress Bar
   ========================================================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #00aaff);
  z-index: 1100;
  transition: width 0.05s linear;
}

/* ==========================================================================
   Page Loading Animation
   ========================================================================== */

.page-loader {
  position: fixed;
  inset: 0;
  background-color: var(--color-white);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.is-loaded {
  opacity: 0;
  visibility: hidden;
}

.page-loader__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: loaderSpin 0.8s linear infinite;
}

@keyframes loaderSpin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Scroll Fade-In Animations — Direction Variants
   ========================================================================== */

/* Base: fade up (default) */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fade from left */
.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Fade from right */
.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Fade from bottom (more dramatic) */
.fade-in-up {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Scale in (zoom) */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Blur in */
.blur-in {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(16px);
  transition: opacity 0.8s ease, filter 0.8s ease, transform 0.8s ease;
}

.blur-in.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* Clip reveal (left to right wipe) */
.clip-reveal {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.clip-reveal.is-visible {
  clip-path: inset(0 0 0 0);
}

/* Clip reveal up (bottom to top wipe) */
.clip-reveal-up {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.clip-reveal-up.is-visible {
  clip-path: inset(0 0 0 0);
}

/* Rotate in */
.rotate-in {
  opacity: 0;
  transform: rotate(-3deg) translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.rotate-in.is-visible {
  opacity: 1;
  transform: rotate(0deg) translateY(0);
}

/* ==========================================================================
   Delay Utility Classes
   ========================================================================== */

.delay-100 { transition-delay: 0.1s !important; }
.delay-200 { transition-delay: 0.2s !important; }
.delay-300 { transition-delay: 0.3s !important; }
.delay-400 { transition-delay: 0.4s !important; }
.delay-500 { transition-delay: 0.5s !important; }

/* ==========================================================================
   Stagger Children (improved)
   ========================================================================== */

.fade-in-children > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-children.is-visible > *:nth-child(1) { transition-delay: 0s; }
.fade-in-children.is-visible > *:nth-child(2) { transition-delay: 0.12s; }
.fade-in-children.is-visible > *:nth-child(3) { transition-delay: 0.24s; }
.fade-in-children.is-visible > *:nth-child(4) { transition-delay: 0.36s; }
.fade-in-children.is-visible > *:nth-child(5) { transition-delay: 0.48s; }
.fade-in-children.is-visible > *:nth-child(6) { transition-delay: 0.60s; }
.fade-in-children.is-visible > *:nth-child(7) { transition-delay: 0.72s; }
.fade-in-children.is-visible > *:nth-child(8) { transition-delay: 0.84s; }
.fade-in-children.is-visible > *:nth-child(9) { transition-delay: 0.96s; }

.fade-in-children.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Scale stagger children */
.scale-in-children > * {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.scale-in-children.is-visible > *:nth-child(1) { transition-delay: 0s; }
.scale-in-children.is-visible > *:nth-child(2) { transition-delay: 0.1s; }
.scale-in-children.is-visible > *:nth-child(3) { transition-delay: 0.2s; }
.scale-in-children.is-visible > *:nth-child(4) { transition-delay: 0.3s; }
.scale-in-children.is-visible > *:nth-child(5) { transition-delay: 0.4s; }
.scale-in-children.is-visible > *:nth-child(6) { transition-delay: 0.5s; }
.scale-in-children.is-visible > *:nth-child(7) { transition-delay: 0.6s; }
.scale-in-children.is-visible > *:nth-child(8) { transition-delay: 0.7s; }
.scale-in-children.is-visible > *:nth-child(9) { transition-delay: 0.8s; }

.scale-in-children.is-visible > * {
  opacity: 1;
  transform: scale(1);
}

/* ==========================================================================
   Hero Content Animation (improved)
   ========================================================================== */

.hero__slide.is-active .hero__catch {
  animation: none;
  opacity: 1;
}

.hero__slide.is-active .hero__catch .line {
  overflow: hidden;
}

.hero__slide.is-active .hero__catch .line-inner {
  animation: heroLineSlash 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  opacity: 0;
  transform: translateX(-100%) skewX(-8deg);
}

.hero__slide.is-active .hero__catch .line:nth-child(2) .line-inner {
  animation-delay: 0.18s;
}

.hero__slide.is-active .hero__catch .line:nth-child(3) .line-inner {
  animation-delay: 0.36s;
}

.hero__slide.is-active .hero__sub {
  animation: heroBlurIn 0.6s ease 0.5s forwards;
  opacity: 0;
}

.hero__slide.is-active .btn {
  animation: heroBtnIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.8s forwards;
  opacity: 0;
}

/* Mobile: faster timing */
@media (max-width: 768px) {
  .hero__slide.is-active .hero__catch .line-inner {
    animation-duration: 0.5s;
  }

  .hero__slide.is-active .hero__catch .line:nth-child(2) .line-inner {
    animation-delay: 0.15s;
  }

  .hero__slide.is-active .hero__catch .line:nth-child(3) .line-inner {
    animation-delay: 0.3s;
  }
}

@keyframes heroLineSlash {
  from {
    opacity: 0;
    transform: translateX(-100%) skewX(-8deg);
  }
  to {
    opacity: 1;
    transform: translateX(0) skewX(0deg);
  }
}

@keyframes heroBlurIn {
  from {
    opacity: 0;
    filter: blur(6px);
    transform: translateY(12px);
  }
  to {
    opacity: 0.9;
    filter: blur(0);
    transform: translateY(0);
  }
}

@keyframes heroBtnIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Hero background slow zoom */
.hero__slide.is-active::after {
  content: '';
  position: absolute;
  inset: 0;
  background: inherit;
  background-size: cover;
  background-position: center;
  animation: heroZoom 8s ease-out forwards;
  z-index: -1;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.05); }
}

/* ==========================================================================
   Section Header Underline Animation
   ========================================================================== */

.section-header__line {
  display: block;
  width: 0;
  height: 3px;
  background-color: var(--color-accent);
  margin: 16px auto 0;
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.is-visible .section-header__line,
.fade-in.is-visible .section-header__line,
.section-header.is-visible .section-header__line {
  width: 40px;
}

/* ==========================================================================
   Number Count-Up — Circular Progress Ring
   ========================================================================== */

.number-item {
  position: relative;
}

.number-item__num {
  transition: none;
}

/* Pulse effect after count-up finishes */
.number-item__num.is-counted {
  animation: numberPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes numberPop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   Card Hover Effects (enhanced)
   ========================================================================== */

/* Service card — overlay gradient shift + scale image */
.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(42, 143, 196, 0.85) 0%, transparent 60%);
  transition: background var(--transition-base);
}

.service-card:hover::after {
  background: linear-gradient(to top, rgba(42, 143, 196, 0.95) 0%, rgba(42, 143, 196, 0.2) 70%);
}

.service-card__content {
  z-index: 2;
}

.service-card .service-card__link .btn__arrow {
  transition: transform var(--transition-fast);
}

.service-card:hover .service-card__link .btn__arrow {
  transform: translateX(6px);
}

/* Feature card — border + icon lift */
.feature-card {
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  border: 2px solid transparent;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(85, 183, 230, 0.2);
}

.feature-card__icon {
  transition: transform var(--transition-base), background-color var(--transition-base);
}

.feature-card:hover .feature-card__icon {
  transform: scale(1.1) translateY(-4px);
  background-color: rgba(85, 183, 230, 0.2);
}

/* Location card — left border expand */
.location-card {
  border-top: 4px solid var(--color-accent);
  position: relative;
  overflow: hidden;
}

.location-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: rgba(85, 183, 230, 0.06);
  transition: width 0.4s ease;
}

.location-card:hover::before {
  width: 100%;
}

/* General card lift */
.card {
  transition: box-shadow var(--transition-base), transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

/* ==========================================================================
   Button Effects
   ========================================================================== */

.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn__arrow {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn:hover .btn__arrow {
  transform: translateX(5px);
}

/* ==========================================================================
   Timeline Item Animation (improved)
   ========================================================================== */

.timeline__item {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline__item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Timeline dot pulse on appear */
.timeline__item.is-visible .timeline__dot {
  animation: dotPulse 0.6s ease 0.3s;
}

@keyframes dotPulse {
  0%   { box-shadow: 0 0 0 2px var(--color-accent); }
  50%  { box-shadow: 0 0 0 8px rgba(85, 183, 230, 0.3); }
  100% { box-shadow: 0 0 0 2px var(--color-accent); }
}

/* Timeline line draw animation */
.timeline::before {
  transform-origin: top;
  animation: lineGrow 1.5s ease forwards;
}

@keyframes lineGrow {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

/* ==========================================================================
   Page Hero Parallax Effect
   ========================================================================== */

.page-hero {
  background-attachment: fixed;
}

/* Page hero content entrance */
.page-hero__content {
  animation: pageHeroIn 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s forwards;
  opacity: 0;
}

@keyframes pageHeroIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   Parallax Background Utility
   ========================================================================== */

.parallax-bg {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ==========================================================================
   Info Table Row Hover
   ========================================================================== */

.info-table tr {
  transition: background-color var(--transition-fast);
}

.info-table tr:hover {
  background-color: rgba(85, 183, 230, 0.06);
}

/* ==========================================================================
   News Item Hover Slide
   ========================================================================== */

.news-item {
  transition: padding-left var(--transition-fast), background-color var(--transition-fast);
  padding-left: 0;
  margin-left: -8px;
  margin-right: -8px;
  padding: 20px 8px;
  border-radius: var(--radius-sm);
}

.news-item:hover {
  padding-left: 12px;
  background-color: var(--color-bg-alt);
}

/* ==========================================================================
   CTA Section Glow
   ========================================================================== */

.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(85, 183, 230, 0.08), transparent 50%);
  animation: ctaGlow 6s ease-in-out infinite alternate;
}

@keyframes ctaGlow {
  from { transform: translate(0, 0); }
  to   { transform: translate(5%, -3%); }
}

/* ==========================================================================
   Page Transition (improved)
   ========================================================================== */

.site-main {
  animation: pageIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Floating Decoration (subtle)
   ========================================================================== */

.float-decoration {
  position: absolute;
  border-radius: 50%;
  background: rgba(85, 183, 230, 0.08);
  pointer-events: none;
  animation: floatSlow 8s ease-in-out infinite alternate;
}

.float-decoration--1 {
  width: 300px;
  height: 300px;
  top: -100px;
  right: -100px;
}

.float-decoration--2 {
  width: 200px;
  height: 200px;
  bottom: -50px;
  left: -50px;
  animation-delay: -3s;
  animation-duration: 10s;
}

@keyframes floatSlow {
  from { transform: translate(0, 0) rotate(0deg); }
  to   { transform: translate(20px, -20px) rotate(5deg); }
}

/* ==========================================================================
   Scroll-triggered Section Highlight Line
   ========================================================================== */

.section-header__en {
  position: relative;
  display: inline-block;
}

.section-header__en::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.5s ease 0.1s;
}

.is-visible .section-header__en::after,
.fade-in.is-visible .section-header__en::after {
  width: 100%;
}

/* ==========================================================================
   Reduced Motion — Accessibility
   ========================================================================== */

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

  .fade-in,
  .fade-in-left,
  .fade-in-right,
  .fade-in-up,
  .scale-in,
  .blur-in,
  .clip-reveal,
  .clip-reveal-up,
  .rotate-in,
  .fade-in-children > *,
  .scale-in-children > *,
  .timeline__item {
    opacity: 1;
    transform: none;
    filter: none;
    clip-path: none;
  }

  .scroll-progress { display: none; }
  .page-loader { display: none; }
}