/* animations.css - Elegant animations for Sesame Research website */

/* Page Transition Overlay */
.page-transition-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.page-transition-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

.page-transition-overlay.no-animation {
    transition: none;
}

/* Sidebar Animation for Home Page */
@keyframes fadeInSlideUp {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Base Animation Classes */
.animate-element {
    opacity: 0;
    transform: translateY(0);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.animate-element.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-section {
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0;
}

.animate-section.animated {
    opacity: 1;
}

/* Animation Variations */
.fade-up {
    transform: translateY(20px);
}

.fade-in {
    transform: translateY(10px);
}

.slide-in {
    transform: translateX(-15px);
}

.zoom-in {
    transform: scale(0.98);
}

.reveal {
    clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%);
    transition: clip-path 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.animated {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* Staggered Animations for Sections */
section > * {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

section.animated > * {
    opacity: 1;
    transform: translateY(0);
}

/* Apply staggered delays to section children */
section > *:nth-child(1) { transition-delay: 0.05s; }
section > *:nth-child(2) { transition-delay: 0.1s; }
section > *:nth-child(3) { transition-delay: 0.15s; }
section > *:nth-child(4) { transition-delay: 0.2s; }
section > *:nth-child(5) { transition-delay: 0.25s; }
section > *:nth-child(6) { transition-delay: 0.3s; }
section > *:nth-child(7) { transition-delay: 0.35s; }
section > *:nth-child(8) { transition-delay: 0.4s; }

/* Special animations for specific elements */
.goal-number {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateX(-20px);
    opacity: 0;
}

.goal.animated .goal-number {
    transform: translateX(0);
    opacity: 1;
}

.divider {
    position: relative;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.divider.animated {
    transform: scaleX(1);
}

/* Logo animation */
.logo-icon {
    transition: none;
    transform-origin: center;
    transform: scale(1);
    will-change: auto;
}

.logo-icon.animated {
    transform: scale(1);
}

/* Navigation bar - excluded from page transitions */
.sidebar .nav-item {
    transition: color 0.2s ease;
}

.static-element {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
    will-change: auto !important;
    pointer-events: auto !important;
}

/* Button animations */
.careers-button {
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
                background-color 0.2s ease;
    transform-origin: center;
}

.careers-button:hover {
    transform: scale(1.02);
}

.arrow-icon {
    transition: transform 0.2s ease;
}

a:hover .arrow-icon {
    transform: translateX(5px);
}

/* Audio visualization animations */
.waveform {
    position: relative;
    overflow: hidden;
}

.waveform::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: wave-shimmer 2s infinite linear;
}

.animated-waveform {
    position: relative;
}

.animated-waveform::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.2);
    transform-origin: left;
    animation: wave-pulse 2s infinite ease-in-out;
}

@keyframes wave-shimmer {
    0% { transform: translateX(0); }
    100% { transform: translateX(200%); }
}

@keyframes wave-pulse {
    0%, 100% { transform: scaleY(0.7); }
    50% { transform: scaleY(1.3); }
}

/* Initial Page Load Animation */
.page-loaded .container > main {
    animation: fade-in-page 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fade-in-page {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Demo Page Specific Animations */
.message {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.animate-message {
    animation: message-appear 0.4s forwards;
}

@keyframes message-appear {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.waveform-demo {
    position: relative;
    overflow: hidden;
}

.waveform-demo.active .waveform-animation {
    animation: waveform-move 2s infinite ease-in-out;
}

@keyframes waveform-move {
    0%, 100% { transform: scaleY(0.8); }
    50% { transform: scaleY(1.2); }
}

.button-pressed {
    transform: scale(0.95);
    transition: transform 0.2s ease;
}

/* Team Page Specific Animations */
.team-member {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-photo {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: center;
}

.team-member:hover .member-photo {
    transform: scale(1.02);
}

.mission-statement {
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.mission-statement.animated {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* Contact Page Specific Animations */
.form-group {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.form-group.animated label {
    animation: label-appear 0.3s forwards 0.1s;
    opacity: 0;
}

@keyframes label-appear {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.submit-button {
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

.submit-button::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 0.3s ease;
}

.submit-button:hover::before {
    left: 100%;
}

.info-group {
    position: relative;
}

.info-group::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: #ddd;
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.info-group.animated::after {
    width: 100%;
}

/* Research Page Specific Animations */
.highlight-term {
    position: relative;
    display: inline-block;
}

.highlight-term::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0.2em;
    background-color: rgba(76, 175, 80, 0.3);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.highlight-term.animated::after {
    transform: scaleX(1);
}

.paper-section p {
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Uncanny Valley Page Animations */
.highlight-button {
    position: relative;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.highlight-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0.5rem;
    box-shadow: 0 0 0 0 rgba(0,0,0,0.1);
    transition: box-shadow 1s ease;
}

.highlight-button.animated::before {
    box-shadow: 0 0 0 8px rgba(0,0,0,0.05);
    animation: pulse-shadow 1.5s infinite;
}

.pulse {
    animation: arrow-pulse 0.4s ease;
}

@keyframes arrow-pulse {
    0% { transform: translateY(0); }
    50% { transform: translateY(5px); }
    100% { transform: translateY(0); }
}

@keyframes pulse-shadow {
    0% { box-shadow: 0 0 0 0 rgba(0,0,0,0.1); }
    70% { box-shadow: 0 0 0 8px rgba(0,0,0,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); }
}

/* Footer animations */
.footer-logo, .footer-nav, .social-links, .footer-info {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-logo { transition-delay: 0.05s; }
.footer-nav { transition-delay: 0.1s; }
.social-links { transition-delay: 0.15s; }
.footer-info { transition-delay: 0.2s; }

.page-loaded .footer-logo,
.page-loaded .footer-nav,
.page-loaded .social-links,
.page-loaded .footer-info {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .animate-element {
        transition-duration: 0.4s;
    }
    
    section > * {
        transition-duration: 0.3s;
    }
}