/* ====================================================================
   3D Effects & Advanced Animations
   ==================================================================== */

/* ----------------------------- Magnetic Buttons ----------------------------- */
[data-magnetic] {
    transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: transform;
}

/* ----------------------------- Tilt Hover (data-tilt) ----------------------------- */
[data-tilt] {
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
    will-change: transform;
}
[data-tilt]:hover { transform: perspective(800px) rotateX(8deg) rotateY(-8deg) scale(1.05); }

/* ----------------------------- Reveal Animations ----------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal.reveal-left { transform: translateX(60px); }
.reveal.reveal-left.visible { transform: translateX(0); }
.reveal.reveal-right { transform: translateX(-60px); }
.reveal.reveal-right.visible { transform: translateX(0); }
.reveal.reveal-scale { transform: scale(0.8); }
.reveal.reveal-scale.visible { transform: scale(1); }

/* Stagger children */
.stagger > * {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s, transform 0.6s;
}
.stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}
.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.10s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.20s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.30s; }
.stagger.visible > *:nth-child(7) { transition-delay: 0.35s; }
.stagger.visible > *:nth-child(8) { transition-delay: 0.40s; }

/* ----------------------------- Animated Gradient Text ----------------------------- */
.gradient-anim {
    background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899, #06b6d4, #3b82f6);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 4s linear infinite;
}
@keyframes gradient-shift {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* ----------------------------- Floating ----------------------------- */
.float-soft { animation: float-soft 4s ease-in-out infinite; }
@keyframes float-soft {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ----------------------------- Glowing Border ----------------------------- */
.glow-border {
    position: relative;
    z-index: 1;
}
.glow-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: var(--gradient-tech);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s;
    filter: blur(8px);
}
.glow-border:hover::before { opacity: 0.7; }

/* ----------------------------- 3D Card Flip ----------------------------- */
.flip-3d {
    perspective: 1000px;
}
.flip-3d-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-style: preserve-3d;
}
.flip-3d:hover .flip-3d-inner { transform: rotateY(180deg); }
.flip-3d-front, .flip-3d-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}
.flip-3d-back { transform: rotateY(180deg); }

/* ----------------------------- Shimmer ----------------------------- */
.shimmer {
    position: relative;
    overflow: hidden;
}
.shimmer::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        115deg,
        transparent 0%,
        rgba(255, 255, 255, 0.4) 50%,
        transparent 100%
    );
    transform: translateX(-100%);
    animation: shimmer 3s infinite;
    pointer-events: none;
}
@keyframes shimmer {
    100% { transform: translateX(100%); }
}

/* ----------------------------- Particle Field Background ----------------------------- */
.particles-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* ----------------------------- Parallax Layers ----------------------------- */
.parallax-layer {
    will-change: transform;
    transition: transform 0.1s linear;
}

/* ----------------------------- Section Dividers ----------------------------- */
.section-divider {
    position: relative;
    height: 80px;
    background: transparent;
    overflow: hidden;
}
.section-divider svg {
    position: absolute;
    bottom: -1px;
    right: 0;
    left: 0;
    width: 100%;
    height: 80px;
}
.section-divider.flip svg { transform: scaleY(-1); }

/* ----------------------------- Aurora Background ----------------------------- */
.aurora {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
.aurora::before, .aurora::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 80%;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    mix-blend-mode: screen;
}
.aurora::before {
    background: radial-gradient(circle, #3b82f6, transparent 70%);
    top: -30%;
    right: -10%;
    animation: aurora-1 14s ease-in-out infinite;
}
.aurora::after {
    background: radial-gradient(circle, #ec4899, transparent 70%);
    bottom: -30%;
    left: -10%;
    animation: aurora-2 16s ease-in-out infinite;
}
@keyframes aurora-1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-40px, 40px) scale(1.1); }
}
@keyframes aurora-2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -40px) scale(1.15); }
}

/* ----------------------------- Glitch Effect ----------------------------- */
.glitch {
    position: relative;
}
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    color: inherit;
    opacity: 0.85;
}
.glitch::before { color: #3b82f6; transform: translate(2px, 0); }
.glitch::after { color: #ec4899; transform: translate(-2px, 0); }
.glitch:hover::before { animation: glitch-1 0.4s steps(4) infinite; }
.glitch:hover::after { animation: glitch-2 0.4s steps(4) infinite; }
@keyframes glitch-1 {
    0%, 100% { transform: translate(2px, 0); }
    25% { transform: translate(3px, 1px); }
    50% { transform: translate(0, 2px); }
    75% { transform: translate(-1px, -1px); }
}
@keyframes glitch-2 {
    0%, 100% { transform: translate(-2px, 0); }
    25% { transform: translate(-3px, -1px); }
    50% { transform: translate(0, -2px); }
    75% { transform: translate(1px, 1px); }
}

/* ----------------------------- Underline Animation ----------------------------- */
.link-underline {
    position: relative;
}
.link-underline::after {
    content: '';
    position: absolute;
    bottom: -3px;
    right: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-tech);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.link-underline:hover::after { width: 100%; }

/* ----------------------------- Neon Glow Text ----------------------------- */
.neon-text {
    color: #fff;
    text-shadow:
        0 0 10px rgba(139, 92, 246, 0.8),
        0 0 20px rgba(139, 92, 246, 0.6),
        0 0 30px rgba(139, 92, 246, 0.4),
        0 0 40px rgba(139, 92, 246, 0.2);
}

/* ----------------------------- 3D Rotating Element ----------------------------- */
.rotate-y-3d {
    animation: rotate-y 8s linear infinite;
}
@keyframes rotate-y {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

/* ----------------------------- Pulse Ring ----------------------------- */
.pulse-ring {
    position: relative;
}
.pulse-ring::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 2px solid currentColor;
    animation: pulse-ring 2s ease-out infinite;
}
@keyframes pulse-ring {
    0%   { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ----------------------------- Loading Shimmer Skeleton ----------------------------- */
.skeleton {
    background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
    background-size: 200% 100%;
    animation: skeleton 1.4s ease-in-out infinite;
    border-radius: 8px;
}
@keyframes skeleton {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ----------------------------- Spotlight cursor effect on cards ----------------------------- */
.spotlight-card {
    position: relative;
    overflow: hidden;
}
.spotlight-card::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    transform: translate(-50%, -50%);
    left: var(--mx, 50%);
    top: var(--my, 50%);
}
.spotlight-card:hover::before { opacity: 1; }