/* ============================================
   PREMIUM ANIMATIONS - GSAP Style Vanilla
   High performance, GPU accelerated, 60fps
   ============================================ */

/* 1. Scroll Progress Bar */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
    width: 0%;
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px var(--accent-primary);
}

/* 2. Magnetic Buttons & Morph Hover */
.morph-hover {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.morph-hover:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.4);
    border-color: var(--accent-secondary);
}

/* 3. 3D Tilt Cards */
.data-tilt {
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg) scale3d(1, 1, 1);
    will-change: transform, box-shadow;
    transform-style: preserve-3d;
}

/* Smooth return when mouse leaves */
.data-tilt.resetting {
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Inner glow pseudo-element for 3D cards */
.data-tilt::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.1), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 10;
}

.data-tilt:hover::before {
    opacity: 1;
}

/* 4. Intersection Observer Reveal Animations */
.data-reveal {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.data-reveal.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Support custom delays via CSS variables */
.data-reveal[style*="--reveal-delay"] {
    transition-delay: var(--reveal-delay, 0ms);
}

/* 5. Staggered Entrance (Tech Stack) */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    animation: staggerFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-play-state: paused;
    /* Paused until JS kicks in */
    /* Fallback if no JS: delay based on index */
    animation-delay: calc(var(--stagger-idx, 0) * 80ms);
}

.is-visible .stagger-item {
    animation-play-state: running;
}

@keyframes staggerFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 6. Typography Sweeps */
.text-sweep {
    background: linear-gradient(90deg, var(--text-main) 0%, var(--accent-secondary) 50%, var(--text-main) 100%);
    background-size: 200% auto;
    color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
    animation: shine 4s linear infinite;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

/* 7. UI UX Pro Max Advanced Keyframes */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 15px var(--accent-glow), inset 0 0 10px var(--accent-glow); border-color: var(--accent-primary); }
    50% { box-shadow: 0 0 35px var(--accent-primary), inset 0 0 20px var(--accent-secondary); border-color: var(--accent-secondary); }
}

@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.shimmer-effect {
    background: linear-gradient(to right, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    background-size: 1000px 100%;
    animation: shimmer 2.5s infinite linear;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-shift-bg {
    background: linear-gradient(270deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
    background-size: 200% 200%;
    animation: gradient-shift 6s ease infinite;
}

/* Allow users to opt-out of animations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .data-reveal {
        opacity: 1;
        transform: none;
    }
}
/* --- 2026 animation refinement --- */
#scroll-progress {
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    box-shadow: 0 0 18px rgba(99, 102, 241, 0.22);
}

.morph-hover:hover {
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 18px 36px rgba(99, 102, 241, 0.16);
}

.data-reveal {
    transform: translateY(26px) scale(0.992);
    transition: opacity 0.72s cubic-bezier(0.16, 1, 0.3, 1), transform 0.72s cubic-bezier(0.16, 1, 0.3, 1);
}

.data-reveal.is-visible {
    transform: translateY(0) scale(1);
}

.text-sweep {
    animation-duration: 8s;
}

@media (prefers-reduced-motion: reduce) {
    .text-sweep,
    .gradient-shift-bg,
    .shimmer-effect {
        animation: none !important;
    }
}

@keyframes premiumSweep {
  0%, 12% { transform: translateX(0) skewX(-22deg); opacity: 0; }
  18% { opacity: 0.45; }
  48% { transform: translateX(420%) skewX(-22deg); opacity: 0.16; }
  100% { transform: translateX(420%) skewX(-22deg); opacity: 0; }
}

@keyframes titlePulse {
  0%, 100% { transform: scaleX(0.88); opacity: 0.72; }
  50% { transform: scaleX(1.06); opacity: 1; }
}

.has-ripple {
  position: relative;
  overflow: hidden;
}

.ui-ripple {
  position: absolute;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255,255,255,0.34) 0%, rgba(255,255,255,0.16) 34%, transparent 72%);
  transform: scale(0.14);
  animation: rippleBurst 640ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  pointer-events: none;
  z-index: 2;
}

[data-theme="light"] .ui-ripple {
  background: radial-gradient(circle, rgba(99,102,241,0.24) 0%, rgba(34,211,238,0.12) 34%, transparent 72%);
}

@keyframes rippleBurst {
  0% {
    opacity: 0.5;
    transform: scale(0.14);
  }
  100% {
    opacity: 0;
    transform: scale(1.2);
  }
}

@keyframes portraitOrbit {
  0% { transform: rotate(0deg) scale(0.985); opacity: 0.72; }
  50% { transform: rotate(180deg) scale(1.015); opacity: 1; }
  100% { transform: rotate(360deg) scale(0.985); opacity: 0.72; }
}

@keyframes portraitOrbitReverse {
  0% { transform: rotate(0deg) scale(1.02); opacity: 0.38; }
  50% { transform: rotate(-180deg) scale(0.985); opacity: 0.18; }
  100% { transform: rotate(-360deg) scale(1.02); opacity: 0.38; }
}

@keyframes portraitPulse {
  0%, 100% {
    opacity: 0.34;
    transform: scale(0.992);
    filter: drop-shadow(0 0 0 rgba(236, 72, 153, 0));
  }
  50% {
    opacity: 0.92;
    transform: scale(1.018);
    filter: drop-shadow(0 0 18px rgba(236, 72, 153, 0.18));
  }
}