/* ============================================
   REPASPavimenti - Animazioni
   ============================================ */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Pulse */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Shake */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

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

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

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-down {
    opacity: 0;
    transform: translateY(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger Animation Delay */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(26, 77, 122, 0.3);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(26, 77, 122, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
    margin: 20px auto;
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

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

/* Image Loading - Solo per immagini con data-src (lazy loading) */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img[data-src].loaded,
img:not([data-src]) {
    opacity: 1;
}

/* Button Loading State */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: rotate 0.6s linear infinite;
}

/* Form Validation Animations */
.form-group input:invalid:not(:focus):not(:placeholder-shown),
.form-group textarea:invalid:not(:focus):not(:placeholder-shown) {
    animation: shake 0.5s ease;
    border-color: #dc3545;
}

.form-group input:valid:not(:focus):not(:placeholder-shown),
.form-group textarea:valid:not(:focus):not(:placeholder-shown) {
    border-color: #28a745;
}

/* Success Checkmark */
@keyframes checkmark {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.checkmark {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #28a745;
    color: white;
    text-align: center;
    line-height: 20px;
    animation: checkmark 0.3s ease;
}

/* Page Transition */
.page-transition {
    animation: fadeIn 0.5s ease;
}

/* Smooth Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: float 2s ease-in-out infinite;
}

.scroll-indicator::before {
    content: '↓';
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.8);
}