/**
 * Animations CSS - Kerala Professionals Network
 * Scroll-triggered animations and transitions
 */

/* === ANIMATION BASE === */
.kpn-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.kpn-animate.kpn-animated {
    opacity: 1;
    transform: translateY(0);
}

/* Fade In Up (default) */
.kpn-animate[data-animation="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
}

.kpn-animate[data-animation="fade-up"].kpn-animated {
    opacity: 1;
    transform: translateY(0);
}

/* Fade In Down */
.kpn-animate[data-animation="fade-down"] {
    opacity: 0;
    transform: translateY(-30px);
}

.kpn-animate[data-animation="fade-down"].kpn-animated {
    opacity: 1;
    transform: translateY(0);
}

/* Fade In Left */
.kpn-animate[data-animation="fade-left"] {
    opacity: 0;
    transform: translateX(-30px);
}

.kpn-animate[data-animation="fade-left"].kpn-animated {
    opacity: 1;
    transform: translateX(0);
}

/* Fade In Right */
.kpn-animate[data-animation="fade-right"] {
    opacity: 0;
    transform: translateX(30px);
}

.kpn-animate[data-animation="fade-right"].kpn-animated {
    opacity: 1;
    transform: translateX(0);
}

/* Scale In */
.kpn-animate[data-animation="scale-in"] {
    opacity: 0;
    transform: scale(0.9);
}

.kpn-animate[data-animation="scale-in"].kpn-animated {
    opacity: 1;
    transform: scale(1);
}

/* Fade In */
.kpn-animate[data-animation="fade-in"] {
    opacity: 0;
    transform: none;
}

.kpn-animate[data-animation="fade-in"].kpn-animated {
    opacity: 1;
}

/* === DELAY UTILITIES === */
.kpn-delay-1 { transition-delay: 0.1s; }
.kpn-delay-2 { transition-delay: 0.2s; }
.kpn-delay-3 { transition-delay: 0.3s; }
.kpn-delay-4 { transition-delay: 0.4s; }
.kpn-delay-5 { transition-delay: 0.5s; }
.kpn-delay-6 { transition-delay: 0.6s; }

/* Data attribute delays */
.kpn-animate[data-delay="100"] { transition-delay: 0.1s; }
.kpn-animate[data-delay="200"] { transition-delay: 0.2s; }
.kpn-animate[data-delay="300"] { transition-delay: 0.3s; }
.kpn-animate[data-delay="400"] { transition-delay: 0.4s; }
.kpn-animate[data-delay="500"] { transition-delay: 0.5s; }
.kpn-animate[data-delay="600"] { transition-delay: 0.6s; }

/* === HERO ANIMATIONS === */
@keyframes kpnHeroSlideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes kpnHeroFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.kpn-hero .kpn-hero-label {
    animation: kpnHeroFade 0.8s ease-out 0.2s both;
}

.kpn-hero .kpn-hero-title {
    animation: kpnHeroSlideUp 0.8s ease-out 0.3s both;
}

.kpn-hero .kpn-hero-subtitle {
    animation: kpnHeroSlideUp 0.8s ease-out 0.5s both;
}

.kpn-hero .kpn-hero-actions {
    animation: kpnHeroSlideUp 0.8s ease-out 0.7s both;
}

/* === WAVE ANIMATION === */
@keyframes kpnWave {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-2%); }
}

.kpn-hero-wave svg {
    animation: kpnWave 8s ease-in-out infinite;
}

/* === CARD HOVER ANIMATIONS === */
.kpn-card,
.kpn-category-card,
.kpn-job-listing-inner {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.kpn-card-img img {
    transition: transform 0.4s ease;
}

.kpn-card:hover .kpn-card-img img {
    transform: scale(1.05);
}

/* === COUNTER ANIMATION === */
.kpn-stat-number {
    transition: opacity 0.3s ease;
}

/* === BUTTON HOVER === */
.kpn-btn {
    position: relative;
    overflow: hidden;
}

.kpn-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: var(--kpn-radius-full);
    background: rgba(255, 255, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.kpn-btn:hover::after {
    width: 300px;
    height: 300px;
}

/* === STAGGER CHILDREN === */
.kpn-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.kpn-stagger.kpn-animated > *:nth-child(1) { transition-delay: 0.05s; }
.kpn-stagger.kpn-animated > *:nth-child(2) { transition-delay: 0.1s; }
.kpn-stagger.kpn-animated > *:nth-child(3) { transition-delay: 0.15s; }
.kpn-stagger.kpn-animated > *:nth-child(4) { transition-delay: 0.2s; }
.kpn-stagger.kpn-animated > *:nth-child(5) { transition-delay: 0.25s; }
.kpn-stagger.kpn-animated > *:nth-child(6) { transition-delay: 0.3s; }

.kpn-stagger.kpn-animated > * {
    opacity: 1;
    transform: translateY(0);
}

/* === LINK UNDERLINE EFFECT === */
.kpn-link-effect {
    position: relative;
    display: inline-block;
}

.kpn-link-effect::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--kpn-accent);
    transition: width 0.3s ease;
}

.kpn-link-effect:hover::after {
    width: 100%;
}

/* === LOADING SKELETON === */
@keyframes kpnShimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.kpn-skeleton {
    background: linear-gradient(90deg, var(--kpn-border-light) 25%, var(--kpn-secondary) 50%, var(--kpn-border-light) 75%);
    background-size: 200% 100%;
    animation: kpnShimmer 1.5s infinite;
    border-radius: var(--kpn-radius);
}

/* === HEADER SCROLL TRANSITION === */
.kpn-header-sticky {
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.kpn-header-scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .kpn-animate {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .kpn-animate.kpn-animated {
        opacity: 1;
        transform: none;
    }

    .kpn-hero .kpn-hero-label,
    .kpn-hero .kpn-hero-title,
    .kpn-hero .kpn-hero-subtitle,
    .kpn-hero .kpn-hero-actions {
        animation: none;
        opacity: 1;
    }

    .kpn-hero-wave svg {
        animation: none;
    }

    .kpn-card:hover,
    .kpn-category-card:hover,
    .kpn-job-listing-inner:hover {
        transform: none;
    }

    .kpn-card:hover .kpn-card-img img {
        transform: none;
    }

    .kpn-stagger > * {
        opacity: 1;
        transform: none;
        transition: none;
    }
}