/* ==========================================================================
   Monica's Little Luxuries — Slow Luxury Animation & Motion Physics
   ========================================================================== */

/* --- Atmospheric Flame & Glow Breathing Keyframes --- */
@keyframes breatheGlow {
  0%, 100% {
    opacity: 0.75;
    transform: scale(1);
    filter: drop-shadow(0 0 25px rgba(245, 158, 11, 0.25));
  }
  50% {
    opacity: 0.95;
    transform: scale(1.03);
    filter: drop-shadow(0 0 45px rgba(245, 158, 11, 0.45));
  }
}

@keyframes candleFlicker {
  0%, 100% { opacity: 0.9; transform: scaleY(1); }
  25% { opacity: 0.82; transform: scaleY(0.97) skewX(0.5deg); }
  50% { opacity: 0.98; transform: scaleY(1.02) skewX(-0.5deg); }
  75% { opacity: 0.86; transform: scaleY(0.98); }
}

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

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulseBorder {
  0%, 100% {
    border-color: rgba(212, 175, 55, 0.2);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.05);
  }
  50% {
    border-color: rgba(212, 175, 55, 0.5);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.18);
  }
}

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

/* --- Spring & Micro-Interaction Keyframes (Emil Kowalski Physics) --- */
@keyframes badgeSpring {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.28); }
  75% { transform: scale(0.92); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes optionCheckPop {
  0% { transform: scale(0.4) rotate(-20deg); }
  60% { transform: scale(1.22) rotate(6deg); }
  100% { transform: scale(1) rotate(0deg); }
}

@keyframes toastSlideUp {
  0% { transform: translateY(20px) scale(0.96); opacity: 0; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes toastSlideDown {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(16px) scale(0.96); opacity: 0; }
}

/* --- Scroll-Triggered Reveal Classes --- */
.reveal-init {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 1.1s var(--ease-slow), transform 1.1s var(--ease-slow);
  will-change: opacity, transform;
}

.reveal-init.reveal-left {
  transform: translateX(-40px);
}

.reveal-init.reveal-right {
  transform: translateX(40px);
}

.reveal-init.reveal-scale {
  transform: scale(0.94);
}

@media (max-width: 768px) {
  .reveal-init.reveal-left,
  .reveal-init.reveal-right {
    transform: translateY(20px);
  }
}

.reveal-active {
  opacity: 1 !important;
  transform: translate(0, 0) scale(1) !important;
}

/* Stagger Delays */
.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 350ms; }
.delay-4 { transition-delay: 500ms; }
.delay-5 { transition-delay: 650ms; }
.delay-6 { transition-delay: 800ms; }

/* --- Subtle Ambient Elements --- */
.breathe-glow {
  animation: breatheGlow var(--duration-breath) infinite ease-in-out;
}

.flicker-flame {
  animation: candleFlicker 4s infinite ease-in-out;
}

.float-slow {
  animation: floatSlow 6s infinite ease-in-out;
}

/* --- Interactive Hover Effects --- */
.hover-gold-glow {
  transition: border-color var(--duration-normal) var(--ease-slow), 
              box-shadow var(--duration-normal) var(--ease-slow),
              transform var(--duration-normal) var(--ease-slow);
}

.hover-gold-glow:hover {
  border-color: var(--color-border-gold-bright) !important;
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.shimmer-text {
  background: linear-gradient(90deg, #D4AF37 0%, #FFF5D6 50%, #D4AF37 100%);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  animation: goldShimmer 8s linear infinite;
}

/* --- Magnetic Link Underline --- */
.link-understated {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding-bottom: 2px;
}

.link-understated::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold-primary);
  transition: width var(--duration-normal) var(--ease-slow);
}

.link-understated:hover::after {
  width: 100%;
}

.link-understated:hover {
  color: var(--color-gold-light);
}

/* --- Accessibility: Respect Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-init {
    opacity: 1 !important;
    transform: none !important;
  }
}