/* ==========================================================================
   Animations — reveal-on-scroll, hover effects, micro interactions
   ========================================================================== */

/* ----- Reveal on scroll ----- */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 800ms var(--sv-ease-out), transform 800ms var(--sv-ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] {
  transform: none;
}
[data-reveal="left"] {
  transform: translateX(-40px);
}
[data-reveal="right"] {
  transform: translateX(40px);
}
[data-reveal="scale"] {
  transform: scale(0.95);
}
[data-reveal="left"].is-visible,
[data-reveal="right"].is-visible,
[data-reveal="scale"].is-visible {
  transform: none;
}

/* Reveal delays */
[data-reveal-delay="1"] { transition-delay: 80ms; }
[data-reveal-delay="2"] { transition-delay: 160ms; }
[data-reveal-delay="3"] { transition-delay: 240ms; }
[data-reveal-delay="4"] { transition-delay: 320ms; }
[data-reveal-delay="5"] { transition-delay: 400ms; }
[data-reveal-delay="6"] { transition-delay: 480ms; }

/* ----- Hover micro-interactions ----- */
.sv-hover-lift {
  transition: transform var(--sv-dur) var(--sv-ease-out);
}
.sv-hover-lift:hover {
  transform: translateY(-4px);
}

.sv-hover-glow {
  transition: box-shadow var(--sv-dur) var(--sv-ease-out);
}
.sv-hover-glow:hover {
  box-shadow: 0 0 40px rgba(13, 110, 253, 0.4);
}

/* Magnetic effect helper (used via JS) */
.sv-magnetic {
  transition: transform var(--sv-dur) var(--sv-ease-out);
  will-change: transform;
}

/* ----- Page transitions ----- */
body { transition: opacity var(--sv-dur-slow) var(--sv-ease-out); }
body.is-loading { opacity: 0; }

/* ----- Spinner / loader (page) ----- */
.sv-page-loader {
  position: fixed;
  inset: 0;
  z-index: var(--sv-z-toast);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sv-white);
  transition: opacity 500ms var(--sv-ease-out), visibility 500ms;
}
.sv-page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
}
.sv-page-loader__inner {
  position: relative;
  width: 60px;
  height: 60px;
}
.sv-page-loader__inner::before,
.sv-page-loader__inner::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}
.sv-page-loader__inner::before {
  border-top-color: var(--sv-primary);
  border-right-color: var(--sv-primary);
  animation: sv-rotate 1s linear infinite;
}
.sv-page-loader__inner::after {
  border-bottom-color: var(--sv-cyan);
  border-left-color: var(--sv-cyan);
  animation: sv-rotate 1.4s linear infinite reverse;
  inset: 8px;
}
@keyframes sv-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ----- Subtle background animation ----- */
@keyframes sv-bg-pan {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ----- Counter (numbers) ----- */
.sv-counter { font-variant-numeric: tabular-nums; }

/* ----- Form submission states ----- */
.sv-is-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}
.sv-is-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sv-rotate 0.6s linear infinite;
}

/* ----- Helper ----- */
.sv-glow {
  position: relative;
  isolation: isolate;
}
.sv-glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--sv-gradient-blue);
  border-radius: inherit;
  opacity: 0.5;
  filter: blur(20px);
  z-index: -1;
  transition: opacity var(--sv-dur) var(--sv-ease-out);
}
.sv-glow:hover::before { opacity: 0.8; }

/* ----- Subtle hover shine on cards ----- */
.sv-shine {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.sv-shine::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 1s var(--sv-ease-out);
  pointer-events: none;
  z-index: 1;
}
.sv-shine:hover::after { transform: translateX(100%); }