/* ============================================
   Scroll Animations, Intersection Observer
   ============================================ */

/* Elements below the fold hold their pre-reveal transform until they scroll
   into view. On a narrow screen a translateX(30px) offset pushes the page
   sideways, so the horizontal axis is clamped. Vertical scrolling and
   position:sticky are unaffected. */
html {
  overflow-x: hidden;
}

body {
  overflow-x: clip;
  max-width: 100%;
}
/* ============================================
   Animations & Keyframes
   ============================================ */

/* Scroll animation base states */
[data-animate] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* Fade in up */
[data-animate="fade-up"] {
  transform: translateY(30px);
}

/* Fade in down */
[data-animate="fade-down"] {
  transform: translateY(-30px);
}

/* Fade in left */
[data-animate="fade-left"] {
  transform: translateX(-30px);
}

/* Fade in right */
[data-animate="fade-right"] {
  transform: translateX(30px);
}

/* Scale in */
[data-animate="scale-in"] {
  transform: scale(0.9);
}

/* Fade in only */
[data-animate="fade-in"] {
  transform: none;
}

/* Stagger delays */
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }
[data-delay="400"] { transition-delay: 400ms; }
[data-delay="500"] { transition-delay: 500ms; }
[data-delay="600"] { transition-delay: 600ms; }
[data-delay="700"] { transition-delay: 700ms; }
[data-delay="800"] { transition-delay: 800ms; }

/* Keyframes for special animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

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

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

/* Hero specific animations */
.hero-animate {
  animation: fadeInUp 0.8s ease forwards;
}

.hero-animate--delay-1 {
  animation-delay: 0.2s;
  opacity: 0;
}

.hero-animate--delay-2 {
  animation-delay: 0.4s;
  opacity: 0;
}

.hero-animate--delay-3 {
  animation-delay: 0.6s;
  opacity: 0;
}

.hero-animate--delay-4 {
  animation-delay: 0.8s;
  opacity: 0;
}

/* Loading spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Gold underline decoration */
.gold-underline {
  position: relative;
  display: inline-block;
}

.gold-underline::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.gold-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}