/* ==========================================
   AKANUKELAB - Advanced Animations
   Inspired by 45r.jp/indigo-hakusho
   ========================================== */

/* ==========================================
   Loading Screen
   ========================================== */
.loader {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg-primary);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__logo {
  font-family: var(--font-english);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-text-primary);
  opacity: 0;
  animation: loaderFadeIn 1s 0.3s forwards;
}

.loader__logo span {
  color: var(--color-accent);
}

.loader__line {
  width: 100px;
  height: 1px;
  background-color: var(--color-border);
  position: relative;
  overflow: hidden;
}

.loader__line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  animation: loaderProgress 2s 0.5s ease-out forwards;
}

@keyframes loaderFadeIn {
  to {
    opacity: 1;
  }
}

@keyframes loaderProgress {
  to {
    transform: scaleX(1);
  }
}

/* ==========================================
   Scroll Progress Bar
   ========================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  z-index: 1001;
  transition: width 0.1s ease;
}

/* ==========================================
   Text Split Animation
   ========================================== */
.text-split {
  overflow: hidden;
}

.text-split__char {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.text-split--visible .text-split__char {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for each character */
.text-split__char:nth-child(1) { transition-delay: 0.02s; }
.text-split__char:nth-child(2) { transition-delay: 0.04s; }
.text-split__char:nth-child(3) { transition-delay: 0.06s; }
.text-split__char:nth-child(4) { transition-delay: 0.08s; }
.text-split__char:nth-child(5) { transition-delay: 0.10s; }
.text-split__char:nth-child(6) { transition-delay: 0.12s; }
.text-split__char:nth-child(7) { transition-delay: 0.14s; }
.text-split__char:nth-child(8) { transition-delay: 0.16s; }
.text-split__char:nth-child(9) { transition-delay: 0.18s; }
.text-split__char:nth-child(10) { transition-delay: 0.20s; }
.text-split__char:nth-child(11) { transition-delay: 0.22s; }
.text-split__char:nth-child(12) { transition-delay: 0.24s; }
.text-split__char:nth-child(13) { transition-delay: 0.26s; }
.text-split__char:nth-child(14) { transition-delay: 0.28s; }
.text-split__char:nth-child(15) { transition-delay: 0.30s; }
.text-split__char:nth-child(16) { transition-delay: 0.32s; }
.text-split__char:nth-child(17) { transition-delay: 0.34s; }
.text-split__char:nth-child(18) { transition-delay: 0.36s; }
.text-split__char:nth-child(19) { transition-delay: 0.38s; }
.text-split__char:nth-child(20) { transition-delay: 0.40s; }

/* ==========================================
   Line Reveal Animation
   ========================================== */
.line-reveal {
  position: relative;
  overflow: hidden;
}

.line-reveal::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-primary);
  transform: translateX(0);
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.line-reveal--visible::after {
  transform: translateX(101%);
}

/* ==========================================
   Parallax Elements
   ========================================== */
.parallax {
  will-change: transform;
}

.parallax--slow {
  --parallax-speed: 0.3;
}

.parallax--medium {
  --parallax-speed: 0.5;
}

.parallax--fast {
  --parallax-speed: 0.8;
}

/* ==========================================
   Magnetic Button Effect
   ========================================== */
.btn-magnetic {
  position: relative;
  transition: transform 0.3s cubic-bezier(0.2, 1, 0.3, 1);
}

.btn-magnetic__text {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.2, 1, 0.3, 1);
}

/* ==========================================
   Hover Link Effects
   ========================================== */
.link-hover {
  position: relative;
  display: inline-block;
}

.link-hover::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

.link-hover:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==========================================
   Image Reveal Animation
   ========================================== */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-accent);
  z-index: 1;
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.img-reveal--visible::before {
  transform: scaleX(0);
}

.img-reveal img {
  transform: scale(1.2);
  transition: transform 1.5s cubic-bezier(0.77, 0, 0.175, 1);
}

.img-reveal--visible img {
  transform: scale(1);
}

/* ==========================================
   Horizontal Scroll Animation
   ========================================== */
.horizontal-scroll {
  display: flex;
  gap: var(--space-lg);
  animation: horizontalScroll 30s linear infinite;
}

.horizontal-scroll:hover {
  animation-play-state: paused;
}

@keyframes horizontalScroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ==========================================
   Number Counter Animation
   ========================================== */
.counter {
  font-family: var(--font-english);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 200;
  color: var(--color-accent);
  line-height: 1;
}

.counter__value {
  display: inline-block;
  tabular-nums: true;
}

.counter__label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  margin-top: var(--space-sm);
}

/* ==========================================
   Glitch Effect (Subtle)
   ========================================== */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}

.glitch:hover::before {
  animation: glitch1 0.3s linear;
  color: var(--color-accent);
  opacity: 0.8;
}

.glitch:hover::after {
  animation: glitch2 0.3s linear;
  color: var(--color-accent-light);
  opacity: 0.8;
}

@keyframes glitch1 {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
}

@keyframes glitch2 {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(2px, -2px); }
  40% { transform: translate(2px, 2px); }
  60% { transform: translate(-2px, -2px); }
  80% { transform: translate(-2px, 2px); }
}

/* ==========================================
   Floating Animation
   ========================================== */
.float {
  animation: float 6s ease-in-out infinite;
}

.float--delay-1 { animation-delay: -1s; }
.float--delay-2 { animation-delay: -2s; }
.float--delay-3 { animation-delay: -3s; }

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* ==========================================
   Pulse Animation
   ========================================== */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ==========================================
   Scale In Animation
   ========================================== */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================
   Rotate In Animation
   ========================================== */
.rotate-in {
  opacity: 0;
  transform: rotate(-5deg) translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================
   Border Animation
   ========================================== */
.border-animate {
  position: relative;
}

.border-animate::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-accent);
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.border-animate:hover::before {
  opacity: 1;
  transform: scale(1);
}

/* ==========================================
   Marquee Text
   ========================================== */
.marquee {
  overflow: hidden;
  white-space: nowrap;
}

.marquee__content {
  display: inline-flex;
  animation: marquee 20s linear infinite;
}

.marquee__content span {
  padding: 0 var(--space-lg);
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ==========================================
   Stagger Animations
   ========================================== */
.stagger-item {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-item--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================
   Card 3D Hover Effect
   ========================================== */
.card-3d {
  perspective: 1000px;
}

.card-3d__inner {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}

.card-3d:hover .card-3d__inner {
  transform: rotateX(5deg) rotateY(5deg);
}

/* ==========================================
   Gradient Border Animation
   ========================================== */
.gradient-border {
  position: relative;
  background: var(--color-bg-card);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-accent), transparent, var(--color-accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  background-size: 200% 200%;
  animation: gradientMove 3s linear infinite;
}

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

/* ==========================================
   Shimmer Effect
   ========================================== */
.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% {
    left: 100%;
  }
}

/* ==========================================
   Cursor Trail (Desktop Only)
   ========================================== */
@media (min-width: 1024px) and (hover: hover) {
  .custom-cursor {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
  }
  
  .custom-cursor--hover {
    width: 60px;
    height: 60px;
    border-color: var(--color-accent-light);
  }
  
  .custom-cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
  }
}

/* ==========================================
   Smooth Scroll Sections
   ========================================== */
.smooth-section {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 1s ease, transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.smooth-section--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================
   Vertical Text (Japanese Style)
   ========================================== */
.vertical-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ==========================================
   Decorative Lines
   ========================================== */
.deco-line {
  position: relative;
}

.deco-line::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -60px;
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent));
}

.deco-line::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -60px;
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

/* ==========================================
   Section Divider
   ========================================== */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.section-divider__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.section-divider__icon {
  width: 12px;
  height: 12px;
  border: 1px solid var(--color-accent);
  transform: rotate(45deg);
}

/* ==========================================
   Clip Path Reveal
   ========================================== */
.clip-reveal {
  clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  transition: clip-path 1.2s cubic-bezier(0.77, 0, 0.175, 1);
}

.clip-reveal--visible {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* ==========================================
   Blur In Animation
   ========================================== */
.blur-in {
  opacity: 0;
  filter: blur(20px);
  transition: opacity 1s ease, filter 1s ease;
}

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

/* ==========================================
   Typewriter Effect
   ========================================== */
.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--color-accent);
  white-space: nowrap;
  animation: typing 3s steps(30) forwards, blink 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  from, to { border-color: transparent; }
  50% { border-color: var(--color-accent); }
}

/* ==========================================
   Background Pattern Animation
   ========================================== */
.bg-pattern-animate {
  position: relative;
  overflow: hidden;
}

.bg-pattern-animate::before {
  content: '';
  position: absolute;
  inset: -50%;
  background-image: 
    radial-gradient(circle at 50% 50%, var(--color-accent) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.03;
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(50px, 50px);
  }
}

/* ==========================================
   Hide on Mobile
   ========================================== */
@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }
}

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