/* ============================================================
   AMUTHU VEG RESTAURANT — ANIMATIONS & SCROLL EFFECTS
   ============================================================ */

/* ---------- AOS (Animate On Scroll) custom classes ---------- */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.8s;
  transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-aos].aos-animate { opacity: 1; transform: none !important; }

[data-aos="fade-up"]    { transform: translateY(40px); }
[data-aos="fade-down"]  { transform: translateY(-40px); }
[data-aos="fade-left"]  { transform: translateX(40px); }
[data-aos="fade-right"] { transform: translateX(-40px); }
[data-aos="zoom-in"]    { transform: scale(0.88); }
[data-aos="zoom-out"]   { transform: scale(1.12); opacity: 1; }
[data-aos="flip-left"]  { transform: perspective(800px) rotateY(-30deg); }
[data-aos="flip-right"] { transform: perspective(800px) rotateY(30deg); }

/* Delay utilities */
[data-aos-delay="100"]  { transition-delay: 0.1s; }
[data-aos-delay="150"]  { transition-delay: 0.15s; }
[data-aos-delay="200"]  { transition-delay: 0.2s; }
[data-aos-delay="250"]  { transition-delay: 0.25s; }
[data-aos-delay="300"]  { transition-delay: 0.3s; }
[data-aos-delay="400"]  { transition-delay: 0.4s; }
[data-aos-delay="500"]  { transition-delay: 0.5s; }
[data-aos-delay="600"]  { transition-delay: 0.6s; }
[data-aos-delay="700"]  { transition-delay: 0.7s; }
[data-aos-delay="800"]  { transition-delay: 0.8s; }

/* ---------- Hero text animations ---------- */
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes heroSlideLeft {
  from { opacity: 0; transform: translateX(-50px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes heroSlideRight {
  from { opacity: 0; transform: translateX(50px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes heroZoom {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(60px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

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

@keyframes borderPulse {
  0%, 100% { border-color: rgba(201,168,76,0.3); }
  50%       { border-color: rgba(201,168,76,0.8); }
}

@keyframes goldGlow {
  0%, 100% { text-shadow: 0 0 10px rgba(201,168,76,0.3); }
  50%       { text-shadow: 0 0 30px rgba(201,168,76,0.7); }
}

@keyframes rotateIn {
  from { opacity: 0; transform: rotate(-10deg) scale(0.9); }
  to   { opacity: 1; transform: rotate(0deg) scale(1); }
}

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

/* ---------- Hero startup animation sequence ---------- */
.hero-label    { animation: heroFadeIn 0.8s ease 0.3s both; }
.hero-title    { animation: heroFadeIn 0.9s ease 0.5s both; }
.hero-sub      { animation: heroFadeIn 0.8s ease 0.7s both; }
.hero-image-wrap { animation: heroZoom 1s ease 0.6s both; }
.hero-deco-left { animation: heroSlideLeft 0.8s ease 0.9s both; }
.hero-deco-right { animation: heroSlideRight 0.8s ease 0.9s both; }
.hero-info-bar { animation: fadeIn 0.8s ease 1.1s both; }

/* ---------- Typing cursor ---------- */
.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--gold);
  margin-left: 2px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ---------- Stagger children ---------- */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-children.in-view > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.05s; }
.stagger-children.in-view > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.15s; }
.stagger-children.in-view > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.25s; }
.stagger-children.in-view > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.35s; }
.stagger-children.in-view > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.45s; }
.stagger-children.in-view > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.55s; }

/* ---------- Parallax elements ---------- */
.parallax-slow { will-change: transform; }
.parallax-fast { will-change: transform; }

/* ---------- Counter animation ---------- */
.counter-num {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ---------- Gold line decorators ---------- */
.gold-line-left,
.gold-line-right {
  position: absolute;
  top: 50%;
  width: 60px;
  height: 1px;
  background: var(--gold);
  opacity: 0.4;
  transform: translateY(-50%);
}
.gold-line-left  { left: 0; }
.gold-line-right { right: 0; }

/* ---------- Gradient text ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Menu item hover line ---------- */
.menu-item {
  transition: padding-left 0.3s ease;
  position: relative;
}
.menu-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.3s ease;
}
.menu-item:hover::before { width: 6px; }

/* ---------- Button ripple effect ---------- */
.btn-ripple {
  position: relative;
  overflow: hidden;
}
.btn-ripple .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  transform: scale(0);
  animation: ripple-anim 0.6s linear;
  pointer-events: none;
}
@keyframes ripple-anim {
  to { transform: scale(4); opacity: 0; }
}

/* ---------- Image reveal ---------- */
.img-reveal-wrap { overflow: hidden; position: relative; }
.img-reveal-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold);
  transform: scaleX(1);
  transform-origin: left;
  transition: transform 0.8s cubic-bezier(0.76, 0, 0.24, 1);
  z-index: 1;
}
.img-reveal-wrap.revealed::after {
  transform: scaleX(0);
  transform-origin: right;
}
.img-reveal-wrap img { opacity: 0; transition: opacity 0.1s 0.4s ease; }
.img-reveal-wrap.revealed img { opacity: 1; }

/* ---------- Scroll indicator (hero) ---------- */
.scroll-indicator {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 5;
  animation: fadeIn 1s ease 1.5s both;
  cursor: pointer;
}
.scroll-indicator-mouse {
  width: 24px; height: 38px;
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  position: relative;
}
.scroll-indicator-wheel {
  width: 3px; height: 6px;
  background: var(--gold);
  border-radius: 3px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: mouseWheel 1.5s ease infinite;
}
@keyframes mouseWheel {
  0%   { top: 6px; opacity: 1; }
  80%  { top: 22px; opacity: 0; }
  100% { top: 6px; opacity: 0; }
}
.scroll-indicator-text {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

/* ---------- Particle dots decorations ---------- */
.particle-dot {
  position: absolute;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.15;
  pointer-events: none;
}

/* ---------- Page transition overlay ---------- */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--dark-green);
  z-index: 9990;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s cubic-bezier(0.76, 0, 0.24, 1);
}
.page-transition.entering { transform: scaleY(1); transform-origin: bottom; }
.page-transition.leaving  { transform: scaleY(0); transform-origin: top; }

/* ---------- Active nav underline animation ---------- */
.nav-link.active::after {
  animation: lineGrow 0.4s ease forwards;
}

/* ---------- Card tilt effect (applied via JS) ---------- */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.1s ease;
}
.tilt-card-inner { transform: translateZ(20px); }

/* ---------- Floating particles ---------- */
@keyframes floatParticle {
  0%   { transform: translateY(0) rotate(0deg); opacity: 0.15; }
  50%  { opacity: 0.3; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

/* ---------- Gold shimmer on borders ---------- */
@keyframes borderShimmer {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---------- Section entrance ---------- */
.section-enter {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.section-enter.visible {
  opacity: 1;
  transform: translateY(0);
}