.spinner{display:inline-block;width:40px;height:40px;border:3px solid rgba(255,255,255,.2);border-top:3px solid var(--color-accent-blue);border-radius:50%;animation:.8s linear infinite spin}.spinner-lg{width:60px;height:60px;border-width:4px}.spinner-sm{width:24px;height:24px;border-width:2px}.spinner-gradient{border:3px solid transparent;border-top:3px solid var(--color-accent-blue);border-right:3px solid var(--color-accent-pink);animation:1s ease-in-out infinite spin}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}.spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-4xl);gap:var(--space-lg)}.spinner-text{color:var(--color-text-muted);font-size:var(--font-md);font-weight:var(--font-medium)}.skeleton{background:linear-gradient(90deg,rgba(255,255,255,.1) 0,rgba(255,255,255,.2) 50%,rgba(255,255,255,.1) 100%);background-size:200% 100%;animation:1.5s ease-in-out infinite shimmer;border-radius:var(--radius-md);position:relative;overflow:hidden}@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}.skeleton-text{height:1em;margin-bottom:.5em;border-radius:4px}.skeleton-text-lg{height:1.5em}.skeleton-text-sm{height:.8em}.skeleton-title{height:2em;width:60%;margin-bottom:var(--space-lg);border-radius:var(--radius-md)}.skeleton-card{background:var(--color-bg-glass-lighter);backdrop-filter:var(--blur-sm);border-radius:var(--radius-2xl);padding:var(--space-xl);border:1px solid var(--color-border-lightest);min-height:300px}.skeleton-card-image{width:100%;height:200px;border-radius:var(--radius-lg);margin-bottom:var(--space-md)}.skeleton-card-title{height:1.5em;width:70%;margin-bottom:var(--space-md)}.skeleton-card-text{height:1em;margin-bottom:.5em}.skeleton-card-text:last-child{width:50%}.skeleton-station-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--gap-xl);padding:var(--space-3xl) 0}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(102,126,234,.95);backdrop-filter:var(--blur-2xl);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:var(--z-modal);animation:.3s fadeIn}.loading-overlay-content{text-align:center;max-width:400px;padding:var(--space-3xl)}.loading-overlay-title{font-size:var(--font-3xl);font-weight:var(--font-bold);margin-top:var(--space-2xl);margin-bottom:var(--space-md);color:#fff}.loading-overlay-subtitle{font-size:var(--font-lg);color:rgba(255,255,255,.9)}.loading-section{position:relative;min-height:200px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-glass-lighter);backdrop-filter:var(--blur-sm);border-radius:var(--radius-2xl);border:1px dashed var(--color-border-light)}.progress-bar{width:100%;height:8px;background:rgba(255,255,255,.1);border-radius:10px;overflow:hidden;position:relative}.progress-bar-fill{height:100%;background:var(--color-primary-gradient);border-radius:10px;transition:width .3s;position:relative;overflow:hidden}.progress-bar-fill::after{content:'';position:absolute;top:0;left:0;bottom:0;right:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:2s infinite shimmer}.progress-bar-indeterminate{position:relative;overflow:hidden}.progress-bar-indeterminate::before{content:'';position:absolute;top:0;left:-50%;height:100%;width:50%;background:var(--color-primary-gradient);animation:1.5s infinite indeterminate}@keyframes indeterminate{0%{left:-50%}100%{left:100%}}.loading-dots{display:inline-flex;gap:8px;align-items:center}.loading-dot{width:8px;height:8px;background:var(--color-accent-blue);border-radius:50%;animation:1.4s ease-in-out infinite both bounce}.loading-dot:first-child{animation-delay:-.32s}.loading-dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,100%,80%{transform:scale(.8);opacity:.5}40%{transform:scale(1.2);opacity:1}}.pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}.btn-loading{position:relative;color:transparent!important;pointer-events:none;cursor:wait}.btn-loading::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:.6s linear infinite spin}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.fade-in{animation:.3s fadeIn}.fade-in-slow{animation:.6s fadeIn}.is-loading{position:relative;pointer-events:none;opacity:.6}.is-loading::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:30px;height:30px;border:3px solid rgba(255,255,255,.2);border-top-color:var(--color-accent-blue);border-radius:50%;animation:.8s linear infinite spin;z-index:10}@media (max-width:768px){.skeleton-station-list{grid-template-columns:1fr}.spinner-lg{width:50px;height:50px}.loading-overlay-title{font-size:var(--font-2xl)}}