/* Custom CSS for Amgens Website - Futuristic Design */

/* Animation Classes */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(30, 58, 95, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(30, 58, 95, 0.6);
    }
}

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

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

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

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    0%, 50% {
        border-color: transparent;
    }
    51%, 100% {
        border-color: #1e3a5f;
    }
}

.animate-fade-in {
    animation: fade-in 0.8s ease-out;
}

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

.animate-pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

.animate-gradient {
    background: linear-gradient(270deg, #1e3a5f, #2a4a7f, #1e3a5f);
    background-size: 600% 600%;
    animation: gradient-shift 4s ease infinite;
}

.animate-slide-left {
    animation: slide-in-left 0.8s ease-out;
}

.animate-slide-right {
    animation: slide-in-right 0.8s ease-out;
}

/* Futuristic Background Patterns */
.futuristic-bg {
    background: linear-gradient(135deg, #1e3a5f 0%, #2a4a7f 25%, #1e3a5f 50%, #2a4a7f 75%, #1e3a5f 100%);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
    position: relative;
    overflow: hidden;
}

.futuristic-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

/* Glassmorphism Effects */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(30, 58, 95, 0.15);
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(30, 58, 95, 0.25);
}

/* Neon Glow Effects */
.neon-text {
    text-shadow: 
        0 0 10px rgba(30, 58, 95, 0.8),
        0 0 20px rgba(30, 58, 95, 0.6),
        0 0 30px rgba(30, 58, 95, 0.4);
}

.neon-border {
    border: 2px solid #1e3a5f;
    box-shadow: 
        0 0 10px rgba(30, 58, 95, 0.5),
        inset 0 0 10px rgba(30, 58, 95, 0.1);
}

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

/* Custom Hover Effects */
.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(30, 58, 95, 0.4);
}

/* Mobile Menu Animation */
#mobile-menu {
    transition: all 0.3s ease-out;
    transform-origin: top;
}

#mobile-menu.hidden {
    transform: scaleY(0);
    opacity: 0;
}

#mobile-menu:not(.hidden) {
    transform: scaleY(1);
    opacity: 1;
}

/* Research Filter Animation */
.research-item {
    transition: all 0.3s ease;
    transform-style: preserve-3d;
}

.research-item:hover {
    transform: translateY(-5px) rotateX(5deg);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: linear-gradient(180deg, #f8fafc, #e2e8f0);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #1e3a5f, #2a4a7f);
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(30, 58, 95, 0.3);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #2a4a7f, #1e3a5f);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(30, 58, 95, 0.2);
    border-top: 3px solid #1e3a5f;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Futuristic Button Styles */
.btn-futuristic {
    background: linear-gradient(135deg, #1e3a5f, #2a4a7f);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-futuristic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-futuristic:hover::before {
    left: 100%;
}

.btn-futuristic:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 58, 95, 0.3);
}

/* Newsletter Form Styling */
.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
    border-color: #1e3a5f;
}

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

.card-hover::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(30, 58, 95, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-hover:hover::before {
    opacity: 1;
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(30, 58, 95, 0.2);
}

/* Responsive Typography */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* Focus States for Accessibility */
button:focus,
a:focus,
input:focus,
textarea:focus {
    outline: 2px solid #1e3a5f;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
}

/* Particle Background Effect */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(30, 58, 95, 0.3);
    border-radius: 50%;
    animation: float-particle 20s infinite linear;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/* Typing Effect */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid #1e3a5f;
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

/* Advanced Grid Patterns */
.grid-pattern {
    background-image: 
        linear-gradient(rgba(30, 58, 95, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 58, 95, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Holographic Effect */
.holographic {
    background: linear-gradient(45deg, #1e3a5f, #2a4a7f, #3a5a8f, #2a4a7f, #1e3a5f);
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
    position: relative;
}

.holographic::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 2s infinite;
}

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