/* ═══════════════════════════════════════════════════════════
   Animations & Transitions
   ═══════════════════════════════════════════════════════════ */

/* ── Keyframes ─────────────────────────────────────────────── */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-12px); }
}

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

@keyframes shimmer {
    0%   { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to   { opacity: 0; visibility: hidden; }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    50%      { box-shadow: 0 0 0 12px rgba(16, 185, 129, 0); }
}

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

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

@keyframes particleFloat {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

/* ── Scroll Animations ─────────────────────────────────────── */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--delay, 0s);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--delay, 0s);
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease, transform 0.5s ease;
    transition-delay: var(--delay, 0s);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ── Element Animations ────────────────────────────────────── */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.float {
    animation: float 4s ease-in-out infinite;
}

/* ── Hero Particles ────────────────────────────────────────── */
.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: particleFloat linear infinite;
}

/* ── Number Count Animation ────────────────────────────────── */
.count-up {
    display: inline-block;
}

/* ── Card Entry Animation ──────────────────────────────────── */
.card-enter {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: var(--delay, 0s);
}

/* ── Skeleton Loader ───────────────────────────────────────── */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-secondary) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: 8px;
}

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

/* ── Hover Card Lift ───────────────────────────────────────── */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* ── Gradient Animation on Hero ────────────────────────────── */
.hero-section {
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

/* ── Smooth page transitions ───────────────────────────────── */
.page-enter {
    animation: fadeInUp 0.4s ease;
}