/* ============================================================
   Animations Stylesheet
   Suzhou Bingju Network Technology Co., Ltd
   ============================================================ */

/* ── Keyframes ────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.88); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: 0.4; transform: scaleY(0.6); }
}

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

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes pulseGold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(200,169,110,0); }
  50%       { box-shadow: 0 0 0 8px rgba(200,169,110,0.15); }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

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

@keyframes counterBounce {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes particleFloat {
  0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
  33%  { transform: translate(20px, -30px) scale(1.2); opacity: 0.8; }
  66%  { transform: translate(-10px, -50px) scale(0.8); opacity: 0.5; }
  100% { transform: translate(5px, -80px) scale(0.4); opacity: 0; }
}

@keyframes gridLineAnim {
  from { stroke-dashoffset: 1000; }
  to   { stroke-dashoffset: 0; }
}

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

@keyframes borderGlow {
  0%, 100% { border-color: rgba(200,169,110,0.2); }
  50%       { border-color: rgba(200,169,110,0.6); }
}

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

@keyframes heroTextReveal {
  from {
    opacity: 0;
    transform: translateY(40px) skewY(2deg);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0) skewY(0);
    filter: blur(0);
  }
}

@keyframes svgDraw {
  from { stroke-dashoffset: 800; opacity: 0.3; }
  to   { stroke-dashoffset: 0;   opacity: 1; }
}

@keyframes waveIn {
  from { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
  to   { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
}

/* ── Hero Entrance ────────────────────────────────────────── */
.hero-anim-1 {
  animation: heroTextReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) 0.3s both;
}

.hero-anim-2 {
  animation: heroTextReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) 0.55s both;
}

.hero-anim-3 {
  animation: heroTextReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) 0.75s both;
}

.hero-anim-4 {
  animation: heroTextReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) 0.95s both;
}

.hero-anim-5 {
  animation: heroTextReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) 1.1s both;
}

/* ── Gradient text ────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, #c8a96e 0%, #f0d890 40%, #c8a96e 60%, #a07840 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

/* ── Shimmer loader ───────────────────────────────────────── */
.shimmer {
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.03) 25%,
    rgba(255,255,255,0.08) 50%,
    rgba(255,255,255,0.03) 75%
  );
  background-size: 200% auto;
  animation: shimmer 2s linear infinite;
}

/* ── Float animation ──────────────────────────────────────── */
.float { animation: floatY 4s ease-in-out infinite; }
.float-2 { animation: floatY 5s ease-in-out infinite 1s; }
.float-3 { animation: floatY 6s ease-in-out infinite 2s; }

/* ── Pulse animation ──────────────────────────────────────── */
.pulse-gold { animation: pulseGold 2.5s ease-in-out infinite; }

/* ── Slow rotate ──────────────────────────────────────────── */
.rotate-slow { animation: rotateSlow 20s linear infinite; }

/* ── Border glow ──────────────────────────────────────────── */
.border-glow { animation: borderGlow 3s ease-in-out infinite; }

/* ── SVG path draw ────────────────────────────────────────── */
.svg-draw {
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
}

.svg-draw.visible {
  animation: svgDraw 2s ease forwards;
}

/* ── Page transition overlay ─────────────────────────────── */
#page-transition {
  position: fixed;
  inset: 0;
  background: #090909;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

#page-transition.active {
  opacity: 1;
  pointer-events: all;
}

/* ── Cursor glow (desktop) ────────────────────────────────── */
#cursor-glow {
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,169,110,0.06) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  z-index: 0;
}

/* ── Particle canvas ──────────────────────────────────────── */
#particle-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
}

/* ── Stagger children ─────────────────────────────────────── */
.stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }
.stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.4s; }
.stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.5s; }
.stagger.visible > *:nth-child(7) { opacity: 1; transform: none; transition-delay: 0.6s; }
.stagger.visible > *:nth-child(8) { opacity: 1; transform: none; transition-delay: 0.7s; }

/* ── Hover underline grow ─────────────────────────────────── */
.underline-grow {
  position: relative;
  display: inline-block;
}

.underline-grow::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}

.underline-grow:hover::after { width: 100%; }

/* ── 3D tilt card ─────────────────────────────────────────── */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.1s ease;
}

/* ── Number counter ───────────────────────────────────────── */
.counter-value {
  display: inline-block;
}

.counter-value.counting {
  animation: counterBounce 0.3s ease;
}

/* ── Loading bar ──────────────────────────────────────────── */
#page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light), var(--color-gold));
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite, lineGrow 0.8s ease forwards;
  z-index: 10000;
  transform-origin: left;
}

/* ── Slide up on scroll ───────────────────────────────────── */
[data-scroll] {
  transition: opacity 0.75s ease, transform 0.75s ease;
}

[data-scroll="fade-up"] {
  opacity: 0;
  transform: translateY(40px);
}

[data-scroll="fade-left"] {
  opacity: 0;
  transform: translateX(-40px);
}

[data-scroll="fade-right"] {
  opacity: 0;
  transform: translateX(40px);
}

[data-scroll="zoom-in"] {
  opacity: 0;
  transform: scale(0.9);
}

[data-scroll].in-view {
  opacity: 1;
  transform: none;
}

/* ── Typing cursor ────────────────────────────────────────── */
.typing-cursor::after {
  content: '|';
  color: var(--color-gold);
  animation: fadeIn 0.8s step-end infinite alternate;
}

/* ── Glow line separator ──────────────────────────────────── */
.glow-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-gold) 50%, transparent 100%);
  margin-block: 4rem;
  position: relative;
}

.glow-line::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(200,169,110,0.5), transparent);
  filter: blur(4px);
}

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

  html { scroll-behavior: auto; }
}