/* ============================================
   Nexus AI - AI Writing Assistant
   Animations Stylesheet
   ============================================ */

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Fade In Up */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Fade In */
.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

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

/* Slide In Left */
.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 */
.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 */
.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 */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

/* Typing Effect */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--accent-primary);
    white-space: nowrap;
    animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

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

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-primary); }
}

/* Gradient Animation */
.gradient-shift {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

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

/* Pulse Animation */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* Bounce Animation */
.bounce {
    animation: bounce 2s infinite;
}

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

/* Shake Animation */
.shake {
    animation: shake 0.5s ease-in-out;
}

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

/* Fade In Scale */
.fade-in-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent-gradient);
    width: 0%;
    z-index: 1000;
    transition: width 0.3s ease;
}

/* Loading Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-glass);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Dot Pulsing */
.dot-pulsing {
    display: flex;
    gap: 4px;
}

.dot-pulsing span {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.dot-pulsing span:nth-child(1) { animation-delay: 0s; }
.dot-pulsing span:nth-child(2) { animation-delay: 0.2s; }
.dot-pulsing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Number Counter */
.number-count {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}

/* Scroll Reveal Effect */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Parallax Effect */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

/* Hover Effect - Glow */
.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.4);
}

/* Button Ripple Effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
}

.btn-ripple:active::after {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    to {
        transform: translate(-50%, -50%) scale(4);
        opacity: 1;
    }
}

/* Floating Animation */
.floating {
    animation: floating 3s ease-in-out infinite;
}

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

/* Glow Effect */
.glow {
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 92, 246, 0.6);
    }
}

/* Shadow Dance */
.shadow-dance {
    animation: shadowDance 2s ease-in-out infinite;
}

@keyframes shadowDance {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
    }
}

/* Text Glitch Effect */
.text-glitch {
    position: relative;
    animation: glitch 2s infinite;
}

@keyframes glitch {
    0%, 90%, 100% {
        transform: translate(0);
    }
    92% {
        transform: translate(-2px, 1px);
    }
    94% {
        transform: translate(2px, -1px);
    }
    96% {
        transform: translate(-1px, 2px);
    }
    98% {
        transform: translate(1px, -2px);
    }
}

/* Morphing Background */
.morph-bg {
    background: linear-gradient(-45deg, #0a0a0f, #1a0533, #0a1628, #0d1f0d);
    background-size: 400% 400%;
    animation: morph 15s ease infinite;
}

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

/* Particle Float */
.particle-float {
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* Card Hover Effect */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
}

/* Button Press Effect */
.btn-press:active {
    transform: scale(0.98);
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-glass) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
}

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

/* Scroll Indicator Fade */
.scroll-indicator {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.hero:not(.scrolled) .scroll-indicator {
    opacity: 1;
}

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

/* Animation Delays */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }
.delay-700 { animation-delay: 700ms; }
.delay-800 { animation-delay: 800ms; }
.delay-900 { animation-delay: 900ms; }
.delay-1000 { animation-delay: 1000ms; }