/* ================================
   Associazione Mario Del Sordo
   Custom CSS Styles
   ================================ */

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

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 1s ease-out forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 1s ease-out forwards;
}

.animate-slide-in-right {
    animation: slideInRight 1s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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

/* Navbar Styles */
.navbar-scrolled {
    background-color: white !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.navbar-scrolled .nav-link {
    color: #374151 !important;
}

.navbar-scrolled .nav-link:hover {
    color: #2563eb !important;
}

/* Hero Section */
.hero-section {
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.95) 0%, rgba(37, 99, 235, 0.9) 100%);
    z-index: 1;
}

/* Value Cards */
.value-card {
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-8px);
}

/* Gallery Filter */
.gallery-filter.active {
    background-color: #2563eb;
    color: white;
}

/* Gallery Item */
.gallery-item {
    opacity: 1;
    transform: scale(1);
    transition: all 0.3s ease;
}

.gallery-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    position: absolute;
    pointer-events: none;
}

/* Lightbox */
#lightbox {
    transition: opacity 0.3s ease;
}

#lightbox.active {
    display: flex;
}

/* Form Styles */
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Button Hover Effects */
.btn-hover-lift {
    transition: all 0.3s ease;
}

.btn-hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Card Hover Effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Selection Color */
::selection {
    background-color: #3b82f6;
    color: white;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Loading Spinner */
.loading-spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3b82f6;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Image Placeholder */
.img-placeholder {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Typography */
@media (max-width: 640px) {
    .font-display {
        font-size: 0.9em;
    }
}

/* Print Styles */
@media print {
    nav, footer, .no-print {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: black;
        background: white;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #3b82f6;
    color: white;
    padding: 8px 16px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Counter Animation */
.counter {
    font-variant-numeric: tabular-nums;
}

/* Parallax Effect Base */
.parallax {
    transform: translateZ(0);
    will-change: transform;
}

/* Border Gradient */
.border-gradient {
    position: relative;
    background: white;
    border-radius: 1rem;
}

.border-gradient::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #3b82f6, #f59e0b);
    border-radius: inherit;
    z-index: -1;
}

/* Aspect Ratios */
.aspect-w-16 {
    position: relative;
    padding-bottom: 56.25%;
}

.aspect-w-4 {
    position: relative;
    padding-bottom: 75%;
}

.aspect-w-1 {
    position: relative;
    padding-bottom: 100%;
}

.aspect-w-16 > *, .aspect-w-4 > *, .aspect-w-1 > * {
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
}

/* Mobile Navigation Animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

#mobile-menu.open {
    max-height: 500px;
}

/* Hover Underline Effect */
.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: #3b82f6;
    transition: width 0.3s ease;
}

.hover-underline:hover::after {
    width: 100%;
}

/* Text Shadow for Hero */
.text-shadow {
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Box Shadow Utilities */
.shadow-soft {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.shadow-strong {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* Transition Utilities */
.transition-fast {
    transition: all 0.15s ease;
}

.transition-medium {
    transition: all 0.3s ease;
}

.transition-slow {
    transition: all 0.5s ease;
}