/* ============================================
   ZUOZHILIN.COM - Animations
   ============================================ */

.particles-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--accent-cyan);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.5;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}

.glow-text {
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3), 0 0 30px rgba(0, 240, 255, 0.2);
}

.glow-text-strong {
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.8), 0 0 20px rgba(0, 240, 255, 0.6), 0 0 30px rgba(0, 240, 255, 0.4), 0 0 40px rgba(0, 240, 255, 0.2);
}

.glitch { position: relative; display: inline-block; }

.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--bg-primary);
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--accent-pink);
    animation: glitch-1 2s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.glitch::after {
    left: -2px;
    text-shadow: 2px 0 var(--accent-cyan);
    animation: glitch-2 2s infinite linear alternate-reverse;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0%, 100% { clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%); }
    25% { clip-path: polygon(0 15%, 100% 15%, 100% 60%, 0 60%); }
    50% { clip-path: polygon(0 30%, 100% 30%, 100% 75%, 0 75%); }
    75% { clip-path: polygon(0 45%, 100% 45%, 100% 90%, 0 90%); }
}

@keyframes glitch-2 {
    0%, 100% { clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%); }
    25% { clip-path: polygon(0 70%, 100% 70%, 100% 95%, 0 95%); }
    50% { clip-path: polygon(0 50%, 100% 50%, 100% 80%, 0 80%); }
    75% { clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%); }
}

.float { animation: float 3s ease-in-out infinite; }
.float-slow { animation: floatSlow 5s ease-in-out infinite; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes floatSlow { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }

.pulse { animation: pulseScale 2s ease-in-out infinite; }
@keyframes pulseScale { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }

.text-gradient-flow {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple), var(--accent-cyan));
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-flow 4s linear infinite;
}

@keyframes gradient-flow { 0% { background-position: 0% 50%; } 100% { background-position: 300% 50%; } }

.cursor-blinker {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--accent-cyan);
    margin-left: 4px;
    vertical-align: middle;
    animation: blink 0.8s infinite;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.hover-lift {
    transition: transform 0.3s, box-shadow 0.3s;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 240, 255, 0.2);
}

.holographic {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(0, 102, 255, 0.1) 25%, rgba(168, 85, 247, 0.1) 50%, rgba(236, 72, 153, 0.1) 75%, rgba(0, 240, 255, 0.1) 100%);
    background-size: 400% 400%;
    animation: holographic 8s ease infinite;
}

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

.slide-reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-reveal-left.in-view { opacity: 1; transform: translateX(0); }

.slide-reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-reveal-right.in-view { opacity: 1; transform: translateX(0); }

.scale-reveal {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger.in-view > * { opacity: 1; transform: translateY(0); }
.stagger.in-view > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.in-view > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.in-view > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.in-view > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.in-view > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.in-view > *:nth-child(6) { transition-delay: 0.3s; }

.terminal-prompt {
    font-family: var(--font-mono);
    color: var(--accent-green);
}

.terminal-prompt::before { content: '> '; color: var(--accent-cyan); font-weight: bold; }

.code-block-animated {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    overflow: hidden;
    position: relative;
}

.hex-bg { position: relative; overflow: hidden; }

.hex-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(0, 240, 255, 0.15) 1px, transparent 0);
    background-size: 20px 20px;
    pointer-events: none;
}

.wave-bar {
    display: inline-block;
    width: 4px;
    height: 20px;
    background: var(--accent-cyan);
    margin: 0 2px;
    animation: wave 1s ease-in-out infinite;
    border-radius: 2px;
}

@keyframes wave { 0%, 100% { transform: translateY(0) scaleY(1); } 50% { transform: translateY(-5px) scaleY(1.1); } }

.animated-border { position: relative; background: var(--bg-card); border-radius: 8px; z-index: 0; }

.animated-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple), var(--accent-cyan));
    background-size: 200% 100%;
    animation: borderRotate 4s linear infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: -1;
}

@keyframes borderRotate { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

.pulse-ring { position: relative; }

.pulse-ring::before, .pulse-ring::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    animation: pulseRing 2s ease-out infinite;
    opacity: 0;
}

.pulse-ring::after { animation-delay: 1s; }

@keyframes pulseRing {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

.loading-dots { display: inline-flex; gap: 4px; }

.loading-dots span {
    width: 6px;
    height: 6px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: loadingDots 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

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

.tilt-card { transition: transform 0.3s ease; transform-style: preserve-3d; }

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    margin: 4rem 0;
    position: relative;
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.hl-keyword { color: var(--accent-purple); }
.hl-string { color: var(--accent-green); }
.hl-function { color: var(--accent-cyan); }
.hl-comment { color: var(--text-muted); font-style: italic; }
.hl-number { color: var(--accent-orange); }
.hl-operator { color: var(--accent-pink); }

.cursor-trail {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease, opacity 0.3s ease;
    transform: translate(-50%, -50%);
    mix-blend-mode: screen;
    opacity: 0.5;
}

.btn-glow {
    position: relative;
    background: var(--gradient-primary);
    color: var(--bg-primary);
    border: none;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    cursor: pointer;
    overflow: hidden;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    filter: blur(15px);
    opacity: 0.5;
    transition: opacity 0.3s;
    z-index: -1;
}

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

.marquee {
    overflow: hidden;
    white-space: nowrap;
    position: relative;
}

.marquee::before, .marquee::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg-primary), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg-primary), transparent); }

.marquee-content {
    display: inline-flex;
    animation: marquee 30s linear infinite;
    gap: 4rem;
}

@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.2s;
}

.tag-pill:hover {
    background: rgba(0, 240, 255, 0.15);
    border-color: var(--accent-cyan);
    transform: translateY(-1px);
}

.counter {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 800;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.animated-underline { position: relative; display: inline-block; }

.animated-underline::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

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

.step-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-cyan);
}

.step-indicator .number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-radius: 50%;
    font-weight: 700;
}

.cyber-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.glow-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.glow-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--accent-cyan), transparent, var(--accent-purple), transparent);
    animation: rotate 8s linear infinite;
    opacity: 0;
    transition: opacity 0.3s;
}

.glow-card:hover::before { opacity: 0.3; }

.glow-card::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--bg-card);
    border-radius: calc(8px - 2px);
    z-index: 1;
}

.glow-card > * { position: relative; z-index: 2; }

@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.glow-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2); }

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 12px;
    height: 12px;
    background: var(--accent-pink);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-pink);
    animation: pulse 1.5s infinite;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-secondary);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 1s ease;
    position: relative;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShimmer 2s linear infinite;
}

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

.indicator-dots { display: inline-flex; gap: 0.5rem; }

.indicator-dot {
    width: 8px;
    height: 8px;
    background: var(--border-subtle);
    border-radius: 50%;
    transition: all 0.3s;
    cursor: pointer;
}

.indicator-dot.active {
    background: var(--accent-cyan);
    width: 24px;
    border-radius: 4px;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.live-indicator::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.5s infinite;
}

.corner-decoration { position: relative; }

.corner-decoration::before, .corner-decoration::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-color: var(--accent-cyan);
    border-style: solid;
}

.corner-decoration::before { top: -2px; left: -2px; border-width: 2px 0 0 2px; }
.corner-decoration::after { bottom: -2px; right: -2px; border-width: 0 2px 2px 0; }

.scanline {
    position: relative;
    overflow: hidden;
}

.scanline::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    animation: scanline 3s linear infinite;
    opacity: 0.5;
}

@keyframes scanline { 0% { transform: translateY(-100%); } 100% { transform: translateY(2000px); } }