/* ═══════════════════════════════════════════════════════
   DELRIQUE INFOTECH — Premium Motion Design System
   Design tokens + animation utilities
   ═══════════════════════════════════════════════════════ */

:root {
  /* Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Duration */
  --dur-fast: 200ms;
  --dur-normal: 400ms;
  --dur-slow: 800ms;
  --dur-reveal: 700ms;

  /* Stagger */
  --stagger-step: 80ms;
}

/* ─── Scroll Reveal System ─── */
[data-reveal] {
  opacity: 0;
  will-change: opacity, transform;
  transition: opacity var(--dur-reveal) var(--ease-out-expo),
              transform var(--dur-reveal) var(--ease-out-expo);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

[data-reveal="up"]    { transform: translateY(32px); }
[data-reveal="left"]  { transform: translateX(-32px); }
[data-reveal="right"] { transform: translateX(32px); }
[data-reveal="scale"] { transform: scale(0.94); }

/* Stagger children */
[data-reveal="stagger"] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-reveal) var(--ease-out-expo),
              transform var(--dur-reveal) var(--ease-out-expo);
}

[data-reveal="stagger"].revealed > * {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="stagger"].revealed > *:nth-child(1) { transition-delay: calc(var(--stagger-step) * 0); }
[data-reveal="stagger"].revealed > *:nth-child(2) { transition-delay: calc(var(--stagger-step) * 1); }
[data-reveal="stagger"].revealed > *:nth-child(3) { transition-delay: calc(var(--stagger-step) * 2); }
[data-reveal="stagger"].revealed > *:nth-child(4) { transition-delay: calc(var(--stagger-step) * 3); }
[data-reveal="stagger"].revealed > *:nth-child(5) { transition-delay: calc(var(--stagger-step) * 4); }
[data-reveal="stagger"].revealed > *:nth-child(6) { transition-delay: calc(var(--stagger-step) * 5); }
[data-reveal="stagger"].revealed > *:nth-child(7) { transition-delay: calc(var(--stagger-step) * 6); }
[data-reveal="stagger"].revealed > *:nth-child(8) { transition-delay: calc(var(--stagger-step) * 7); }
[data-reveal="stagger"].revealed > *:nth-child(9) { transition-delay: calc(var(--stagger-step) * 8); }

/* ─── Magnetic Hover ─── */
.magnetic {
  transition: transform var(--dur-normal) var(--ease-spring);
}

.magnetic:hover {
  transform: translateY(-3px);
}

/* ─── Lift Effect ─── */
.lift {
  transition: transform var(--dur-normal) var(--ease-out-expo),
              box-shadow var(--dur-normal) var(--ease-out-expo);
}

.lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ─── Glow Border ─── */
.glow {
  position: relative;
}

.glow::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--dur-normal) var(--ease-smooth);
  pointer-events: none;
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-blue));
  z-index: -1;
}

.glow:hover::after {
  opacity: 0.15;
}

/* ─── Button Gradient Animation ─── */
.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.5s var(--ease-out-expo);
}

.btn-glow:hover::before {
  left: 100%;
}

/* ─── Image Reveal ─── */
.img-reveal {
  overflow: hidden;
  position: relative;
}

.img-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--brand-black);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 0.8s var(--ease-in-out-quart);
}

.img-reveal.revealed::after {
  transform: scaleX(0);
}

/* ─── Section Reveal ─── */
.section-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo),
              transform 0.8s var(--ease-out-expo);
}

.section-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Card Hover Patterns ─── */
.card-hover {
  transition: transform var(--dur-normal) var(--ease-out-expo),
              border-color var(--dur-normal) var(--ease-smooth),
              background var(--dur-normal) var(--ease-smooth);
}

.card-hover:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
}

/* ─── Text Gradient ─── */
.text-gradient {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal],
  [data-reveal="stagger"] > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .section-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ─── JS Fallback: Reveal content if JS fails ─── */
/* If JS doesn't add .revealed within 2s, force reveal */
[data-reveal]:not(.revealed) {
  animation: jsFallbackReveal 0s ease 2s forwards;
}
[data-reveal="stagger"] > *:not([data-reveal].revealed > *) {
  animation: jsFallbackReveal 0s ease 2s forwards;
}
.section-reveal:not(.visible) {
  animation: jsFallbackReveal 0s ease 2s forwards;
}

@keyframes jsFallbackReveal {
  to {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }
}