/* ===================================
   UAVResearch Landing Page - Animations
   =================================== */

/* ===================================
   Fade In Animations
   =================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.2s;
}

.fade-in-delay-2 {
    animation-delay: 0.4s;
}

.fade-in-delay-3 {
    animation-delay: 0.6s;
}

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

/* ===================================
   Scroll Reveal Animations
   =================================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

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

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

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

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

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

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

/* ===================================
   Stagger Animations
   =================================== */

.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.stagger-item.active {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }
.stagger-item:nth-child(7) { transition-delay: 0.7s; }
.stagger-item:nth-child(8) { transition-delay: 0.8s; }

/* ===================================
   Hover Animations
   =================================== */

.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 {
    position: relative;
    transition: all 0.3s ease;
}

.hover-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    opacity: 0;
    box-shadow: 0 0 20px rgba(0, 123, 255, 0.5);
    transition: opacity 0.3s ease;
}

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

/* ===================================
   Loading Animations
   =================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 123, 255, 0.2);
    border-top-color: #007bff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

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

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

/* ===================================
   Gradient Animations
   =================================== */

.gradient-animate {
    background: linear-gradient(
        -45deg,
        #667eea,
        #764ba2,
        #f093fb,
        #4facfe
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

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

/* ===================================
   Text Animations
   =================================== */

.typewriter {
    overflow: hidden;
    border-right: 2px solid;
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

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

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: currentColor; }
}

.text-shimmer {
    background: linear-gradient(
        90deg,
        #667eea 0%,
        #764ba2 50%,
        #667eea 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    to { background-position: 200% center; }
}

/* ===================================
   Button Animations
   =================================== */

.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

.btn-bounce {
    animation: bounce 2s ease infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===================================
   Card Animations
   =================================== */

.card-flip {
    perspective: 1000px;
}

.card-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card-flip:hover .card-flip-inner {
    transform: rotateY(180deg);
}

.card-flip-front,
.card-flip-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.card-flip-back {
    transform: rotateY(180deg);
}

/* ===================================
   Scroll Progress Bar
   =================================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    z-index: 9999;
    transform-origin: left;
    transition: transform 0.1s ease;
}

/* ===================================
   Floating Animation
   =================================== */

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

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

/* ===================================
   Slide In Animations
   =================================== */

.slide-in-left {
    animation: slideInLeft 0.6s ease forwards;
}

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

.slide-in-right {
    animation: slideInRight 0.6s ease forwards;
}

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

.slide-in-bottom {
    animation: slideInBottom 0.6s ease forwards;
}

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

/* ===================================
   Zoom Animations
   =================================== */

.zoom-in {
    animation: zoomIn 0.5s ease forwards;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.zoom-out {
    animation: zoomOut 0.5s ease forwards;
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

/* ===================================
   Rotate Animations
   =================================== */

.rotate-in {
    animation: rotateIn 0.6s ease forwards;
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg) scale(0.5);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

/* ===================================
   Shake Animation
   =================================== */

.shake {
    animation: shake 0.5s ease;
}

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

/* ===================================
   Attention Seekers
   =================================== */

.heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(0.9); }
    20%, 40% { transform: scale(1.1); }
}

.wobble {
    animation: wobble 1s ease;
}

@keyframes wobble {
    0%, 100% { transform: translateX(0); }
    15% { transform: translateX(-25px) rotate(-5deg); }
    30% { transform: translateX(20px) rotate(3deg); }
    45% { transform: translateX(-15px) rotate(-3deg); }
    60% { transform: translateX(10px) rotate(2deg); }
    75% { transform: translateX(-5px) rotate(-1deg); }
}

/* ===================================
   Counter Animation
   =================================== */

.counter {
    animation: countUp 2s ease-out forwards;
}

@keyframes countUp {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===================================
   Parallax Effect
   =================================== */

.parallax {
    transition: transform 0.1s ease-out;
}

/* ===================================
   Skeleton Loading
   =================================== */

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

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

/* ===================================
   Success/Error Animations
   =================================== */

.success-checkmark {
    animation: successCheckmark 0.8s ease;
}

@keyframes successCheckmark {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.error-shake {
    animation: errorShake 0.5s ease;
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* ===================================
   Notification Slide
   =================================== */

.notification-slide-in {
    animation: notificationSlideIn 0.5s ease forwards;
}

@keyframes notificationSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-slide-out {
    animation: notificationSlideOut 0.5s ease forwards;
}

@keyframes notificationSlideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ===================================
   Reduced Motion Override
   =================================== */

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

/* Made with Bob */