body { font-family: 'Inter', sans-serif; -webkit-font-smoothing: antialiased; }

/* Animowany gradient tła dla Hero */
.hero-gradient { background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%); }

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

/* FAQ style */
.faq-item[open] summary i { transform: rotate(180deg); }
details summary::-webkit-details-marker { display: none; }

/* --- ANIMACJE I EFEKTY --- */
.reveal {
    opacity: 1;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }

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

.animate-slide-in-left { animation: slideInLeft 0.8s ease-out forwards; }
.animate-slide-in-right { animation: slideInRight 0.8s ease-out forwards; }

/* Animacja lewitowania (Float) */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

.animate-float {
    animation: float 5s ease-in-out infinite;
}

.animate-float-slow {
    animation: float 7s ease-in-out infinite;
}

.delay-float-1 { animation-delay: 0.5s; }
.delay-float-2 { animation-delay: 1.5s; }
.delay-float-3 { animation-delay: 2.5s; }

/* Mobile Menu Animation */
#mobile-menu {
    transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}
#mobile-menu.open {
    max-height: 400px;
    opacity: 1;
}

/* Pulsowanie przycisku */
@keyframes pulse-blue {
    0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(59, 130, 246, 0); }
    100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}
.cta-pulse {
    animation: pulse-blue 2s infinite;
}

/* Efekt błysku na przyciskach (Shimmer) */
.btn-shimmer {
    position: relative;
    overflow: hidden;
}
.btn-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}
.btn-shimmer:hover::after {
    left: 100%;
    transition: 0.7s ease-in-out;
}

/* Glassmorphism dla kafelków */
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}