/* ═══════════════════════════════════════════════════════════════════════════
   ANIMATIONS.CSS — Premium Motion Design System
   Transform + opacity only. 60fps. Respects prefers-reduced-motion.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────────────────── */
:root {
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out-expo: cubic-bezier(0.87, 0, 0.13, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-editorial: cubic-bezier(.16, 1, .3, 1);
  --duration-fast: 200ms;
  --duration-base: 350ms;
  --duration-slow: 550ms;
  --duration-glacial: 800ms;
  --stagger-base: 60ms;
}

/* ── Semantic Motion Utilities ─────────────────────────────────────────── */
.motion-smooth {
  transition: transform 350ms var(--ease-editorial),
              opacity 350ms var(--ease-editorial),
              box-shadow 350ms var(--ease-editorial),
              border-color 350ms var(--ease-editorial);
}

.motion-fast {
  transition: transform 200ms var(--ease-editorial),
              opacity 200ms var(--ease-editorial),
              background-color 200ms var(--ease-editorial),
              color 200ms var(--ease-editorial);
}

.motion-slow {
  transition: transform 550ms var(--ease-editorial),
              opacity 550ms var(--ease-editorial),
              box-shadow 550ms var(--ease-editorial);
}

.card-hover {
  transition: transform 300ms var(--ease-editorial),
              box-shadow 300ms var(--ease-editorial),
              border-color 300ms var(--ease-editorial);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--flc-shadow-elevated, 0 4px 16px rgba(15,40,56,0.06), 0 24px 56px rgba(15,40,56,0.09));
  border-color: rgba(154, 123, 79, 0.28);
}

.fade-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms var(--ease-editorial),
              transform 500ms var(--ease-editorial);
}
.fade-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.image-hover {
  overflow: hidden;
}
.image-hover img,
.image-hover > * {
  transition: transform 600ms var(--ease-editorial);
}
.image-hover:hover img,
.image-hover:hover > * {
  transform: scale(1.02);
}

/* ── Reduced Motion ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in-up,
  .reveal-up,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  .img-reveal { opacity: 1; transform: none; }
}

/* ── Scroll Reveal Utilities ───────────────────────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ── Stagger children ──────────────────────────────────────────────────── */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out-expo),
              transform 0.5s var(--ease-out-expo);
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; }
.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ── Image Reveal ──────────────────────────────────────────────────────── */
.img-reveal {
  opacity: 0;
  transform: scale(1.06);
  filter: blur(8px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo),
              filter 0.7s var(--ease-out-expo);
}
.img-reveal.visible {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

.img-hover-zoom {
  overflow: hidden;
}
.img-hover-zoom img {
  transition: transform 600ms var(--ease-editorial);
}
.img-hover-zoom:hover img,
.img-hover-zoom:focus-within img {
  transform: scale(1.02);
}

/* ── Parallax ──────────────────────────────────────────────────────────── */
.parallax-slow {
  will-change: transform;
}
.parallax-subtle {
  will-change: transform;
}

/* ── Hero text line reveal ─────────────────────────────────────────────── */
.hero-line {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo),
              transform 0.8s var(--ease-out-expo);
}
.hero-line.visible {
  opacity: 1;
  transform: translateY(0);
}
.hero-line:nth-child(1) { transition-delay: 0ms; }
.hero-line:nth-child(2) { transition-delay: 120ms; }
.hero-line:nth-child(3) { transition-delay: 240ms; }

/* ── Button micro-interactions ─────────────────────────────────────────── */
.btn-lift {
  transition: transform 280ms var(--ease-editorial),
              box-shadow 280ms var(--ease-editorial),
              background-color 280ms var(--ease-editorial),
              color 280ms var(--ease-editorial);
}
.btn-lift:hover {
  transform: translateY(-1px);
  box-shadow: var(--flc-shadow-soft, 0 2px 8px rgba(15,40,56,0.05), 0 12px 32px rgba(15,40,56,0.07));
}
.btn-lift:active {
  transform: translateY(0);
  box-shadow: var(--flc-shadow-editorial, 0 1px 2px rgba(15,40,56,0.04), 0 4px 12px rgba(15,40,56,0.06));
}

/* ── Animated underline ────────────────────────────────────────────────── */
.underline-reveal {
  position: relative;
}
.underline-reveal::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: currentColor;
  transition: width 0.35s var(--ease-out-expo);
}
.underline-reveal:hover::after,
.underline-reveal:focus-visible::after {
  width: 100%;
}

/* ── Card glow border ──────────────────────────────────────────────────── */
.card-glow {
  transition: box-shadow 0.4s var(--ease-out-expo),
              border-color 0.4s var(--ease-out-expo);
}
.card-glow:hover {
  border-color: rgba(154, 123, 79, 0.35);
  box-shadow: 0 0 0 1px rgba(154, 123, 79, 0.12),
              0 20px 40px rgba(15, 40, 56, 0.08);
}

/* ── Mobile Menu Drawer ────────────────────────────────────────────────── */
.mobile-drawer {
  transform: translateX(100%);
  transition: transform 0.4s var(--ease-out-expo);
}
.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-backdrop {
  opacity: 0;
  transition: opacity 0.35s var(--ease-out-expo);
  pointer-events: none;
}
.mobile-drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-item {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.35s var(--ease-out-expo),
              transform 0.35s var(--ease-out-expo);
}
.mobile-drawer.open .mobile-nav-item:nth-child(1) { transition-delay: 80ms; }
.mobile-drawer.open .mobile-nav-item:nth-child(2) { transition-delay: 130ms; }
.mobile-drawer.open .mobile-nav-item:nth-child(3) { transition-delay: 180ms; }
.mobile-drawer.open .mobile-nav-item:nth-child(4) { transition-delay: 230ms; }
.mobile-drawer.open .mobile-nav-item:nth-child(5) { transition-delay: 280ms; }
.mobile-drawer.open .mobile-nav-item {
  opacity: 1;
  transform: translateX(0);
}

/* Hamburger morph */
.hamburger-line {
  transition: transform 0.3s var(--ease-out-expo),
              opacity 0.2s var(--ease-out-expo);
  transform-origin: center;
}
.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Search Modal ──────────────────────────────────────────────────────── */
.search-modal-enter {
  opacity: 0;
  transform: scale(0.98) translateY(-4px);
  transition: opacity 300ms var(--ease-editorial),
              transform 300ms var(--ease-editorial);
}
.search-modal-enter.open {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.search-result-item {
  opacity: 1;
  transform: translateY(0);
  transition: background-color 0.15s var(--ease-editorial, ease),
              border-color 0.15s var(--ease-editorial, ease);
}
.search-result-item[aria-selected="true"] {
  background-color: rgba(154, 123, 79, 0.08);
  border-color: rgba(154, 123, 79, 0.2) !important;
}
#searchResults > div + div {
  border-top: 1px solid rgba(229, 224, 216, 0.5);
}

/* ── Page Transition ───────────────────────────────────────────────────── */
/* JS-driven classes handle entrance/exit for all browsers.
   The subtle slide + fade creates a premium feel at 60fps.             */

/* ── Pulse ring for focus/attention ────────────────────────────────────── */
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(154, 123, 79, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(154, 123, 79, 0); }
  100% { box-shadow: 0 0 0 0 rgba(154, 123, 79, 0); }
}

/* ── Skeleton (consolidated reference) ─────────────────────────────────── */
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}