/* =============================================
   Анімації та ефекти
   ============================================= */

/* ─── Scroll Reveal ─── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

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

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

/* Stagger delay для дочірніх елементів */
.stagger > *:nth-child(1) { transition-delay: 0.05s; }
.stagger > *:nth-child(2) { transition-delay: 0.1s; }
.stagger > *:nth-child(3) { transition-delay: 0.15s; }
.stagger > *:nth-child(4) { transition-delay: 0.2s; }
.stagger > *:nth-child(5) { transition-delay: 0.25s; }
.stagger > *:nth-child(6) { transition-delay: 0.3s; }
.stagger > *:nth-child(7) { transition-delay: 0.35s; }
.stagger > *:nth-child(8) { transition-delay: 0.4s; }
.stagger > *:nth-child(9) { transition-delay: 0.45s; }

/* ─── Typewriter Effect ─── */
.typewriter {
    display: inline;
    border-right: 3px solid var(--primary);
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

/* ─── Counter Up ─── */
.counter-up {
    display: inline-block;
}

/* ─── Pulse ─── */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(14, 165, 233, 0); }
    100% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0); }
}

/* ─── Shimmer ─── */
.shimmer {
    position: relative;
    overflow: hidden;
}

.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.08),
        transparent
    );
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}

/* ─── Gradient Border Animation ─── */
.gradient-border {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, var(--primary), var(--accent), var(--amber), var(--primary));
    background-size: 300% 300%;
    animation: gradient-shift 4s ease infinite;
}

.gradient-border > * {
    background: var(--bg-card);
    border-radius: calc(var(--radius-lg) - 2px);
}

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

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

/* ─── Bounce кнопка ─── */
.bounce-hover:hover {
    animation: bounce 0.5s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    30% { transform: translateY(-8px); }
    50% { transform: translateY(-4px); }
    70% { transform: translateY(-6px); }
}

/* ─── Glow effect ─── */
.glow-hover:hover {
    box-shadow: var(--shadow-glow);
}

/* ─── Loading Spinner ─── */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ─── Ripple Effect ─── */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* ─── Page Transitions ─── */
.page-enter {
    animation: page-fade-in 0.3s ease;
}

@keyframes page-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Prefers Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
}