/* ========================================
   HHM Animations — Keyframes & Scroll FX
   ======================================== */

/* ---- Keyframes ---- */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes float-x {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(8px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Particle float for hero */
@keyframes particle-float {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

/* ---- Scroll-triggered animations ---- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll--visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children */
.animate-stagger > *:nth-child(1) { transition-delay: 0ms; }
.animate-stagger > *:nth-child(2) { transition-delay: 100ms; }
.animate-stagger > *:nth-child(3) { transition-delay: 200ms; }
.animate-stagger > *:nth-child(4) { transition-delay: 300ms; }
.animate-stagger > *:nth-child(5) { transition-delay: 400ms; }
.animate-stagger > *:nth-child(6) { transition-delay: 500ms; }
.animate-stagger > *:nth-child(7) { transition-delay: 600ms; }
.animate-stagger > *:nth-child(8) { transition-delay: 700ms; }

/* ---- Page transitions ---- */
.page-enter-active {
    animation: fade-in-up 0.4s ease forwards;
}

.page-leave-active {
    animation: fade-in 0.2s ease reverse forwards;
}

/* ---- Hover micro-animations ---- */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow-gold);
}

/* ---- Gradient border animation ---- */
.gradient-border {
    position: relative;
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--gold), var(--coral), var(--purple), var(--indigo));
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
    animation: gradient-shift 4s ease infinite;
}

.gradient-border:hover::before {
    opacity: 1;
}

/* ---- Partners scroll ---- */
.partners-scroll {
    overflow: hidden;
    position: relative;
}

.partners-scroll__track {
    display: flex;
    gap: var(--space-2xl);
    animation: partners-slide 30s linear infinite;
    width: max-content;
}

@keyframes partners-slide {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.partners-scroll__track:hover {
    animation-play-state: paused;
}