/* JFun PWA layer v1 - all new classes start with jf- */
:root{--jf-nav-bg:#ffffff;--jf-nav-border:#e9ecef;--jf-nav-shadow:0 -4px 20px rgba(0,0,0,0.08);--jf-active:#e91e63;--jf-text:#6c757d;--jf-toast-bg:#333333;--jf-skel-a:#e9ecef;--jf-skel-b:#f5f6f8;--jf-fg:#333333}
html[data-theme="dark"]{color-scheme:dark;--bg-color:#121218;--card-bg:#1e1e2a;--text-color:#e8e8f0;--text-secondary:#a3a3b5;--border-color:#2f2f40;--shadow-color:rgba(0,0,0,0.5);--jf-nav-bg:#1a1a24;--jf-nav-border:#2f2f40;--jf-nav-shadow:0 -4px 20px rgba(0,0,0,0.5);--jf-text:#a3a3b5;--jf-toast-bg:#2b2b3b;--jf-skel-a:#2a2a3a;--jf-skel-b:#353548;--jf-fg:#e8e8f0}
html[data-theme="dark"] body{background:var(--bg-color);color:var(--text-color)}
html[data-theme="dark"] .navbar,html[data-theme="dark"] .currency-options,html[data-theme="dark"] .copy-btn,html[data-theme="dark"] .rules-content{background:var(--card-bg);color:var(--text-color);border-color:var(--border-color)}
html[data-theme="dark"] input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]),html[data-theme="dark"] select,html[data-theme="dark"] textarea{background:#252533;color:#e8e8f0;border-color:#2f2f40}
html[data-theme="dark"] ::placeholder{color:#8a8aa0}
.jf-nav{position:fixed;bottom:0;left:0;right:0;background:var(--jf-nav-bg);box-shadow:var(--jf-nav-shadow);border-top:1px solid var(--jf-nav-border);z-index:1000;padding:8px 10px;padding-bottom:max(8px,env(safe-area-inset-bottom,0px));transition:transform .3s ease}
.jf-nav-inner{max-width:600px;margin:0 auto;display:flex;justify-content:space-around;align-items:center;gap:5px}
.jf-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 12px;flex:1;max-width:100px;background:transparent;border:none;border-radius:12px;text-decoration:none;position:relative;overflow:hidden;color:inherit;transition:all .3s cubic-bezier(0.4,0,0.2,1)}
.jf-nav-item::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:0;height:3px;background:var(--jf-active);border-radius:0 0 3px 3px;transition:all .3s ease}
.jf-nav-item:hover::before{width:30px}
.jf-nav-item.active{background:linear-gradient(135deg,rgba(233,30,99,0.1) 0%,rgba(194,24,89,0.1) 100%)}
.jf-nav-item.active::before{width:100%}
.jf-nav-icon{font-size:18px;height:22px;display:flex;align-items:center;justify-content:center;color:var(--jf-text);transition:all .3s ease}
.jf-nav-text{font-size:10px;font-weight:500;color:var(--jf-text);font-family:'Poppins','Arial',sans-serif}
.jf-nav-item.active .jf-nav-icon{color:var(--jf-active);transform:scale(1.1)}
.jf-nav-item.active .jf-nav-text{color:var(--jf-active);font-weight:700}
body.jf-has-nav{padding-bottom:calc(74px + env(safe-area-inset-bottom,0px)) !important}
body.modal-open .jf-nav{transform:translateY(100%)}
body.modal-open .jf-theme-btn{display:none}
body.jf-kbd .jf-nav,body.jf-kbd .jf-theme-btn,body.jf-kbd .jf-install{display:none}
#jf-toast-wrap{position:fixed;top:calc(12px + env(safe-area-inset-top,0px));left:50%;transform:translateX(-50%);z-index:100000;display:flex;flex-direction:column;gap:8px;width:min(92vw,420px);pointer-events:none}
.jf-toast{pointer-events:auto;display:flex;align-items:center;gap:10px;background:var(--jf-toast-bg);color:#ffffff;padding:12px 14px;border-radius:12px;border-left:4px solid #2196F3;box-shadow:0 8px 24px rgba(0,0,0,0.25);font:500 13px/1.4 'Poppins','Arial',sans-serif;opacity:0;transform:translateY(-10px);transition:opacity .25s ease,transform .25s ease;cursor:pointer}
.jf-toast.jf-show{opacity:1;transform:none}
.jf-toast.jf-success{border-left-color:#4CAF50}
.jf-toast.jf-error{border-left-color:#f44336}
.jf-toast.jf-warning{border-left-color:#FF9800}
.jf-toast-icon{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,0.18);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.jf-toast-text{flex:1;word-break:break-word}
#jf-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--jf-active);z-index:100001;opacity:0;transition:width .4s ease,opacity .3s ease}
.jf-skel-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:99990;background:var(--bg-color,#f4f4f9);padding:calc(16px + env(safe-area-inset-top,0px)) 14px 90px;display:none;overflow:hidden}
.jf-skel-overlay.jf-on{display:block}
.jf-skel-overlay .jf-skel-inner{max-width:600px;margin:0 auto}
.jf-skel{background:linear-gradient(90deg,var(--jf-skel-a) 25%,var(--jf-skel-b) 37%,var(--jf-skel-a) 63%);background-size:400% 100%;animation:jf-shimmer 1.2s ease infinite;border-radius:12px}
.jf-skel-bar{height:44px;margin-bottom:16px}
.jf-skel-hero{height:120px;margin-bottom:16px}
.jf-skel-row{height:64px;margin-bottom:12px}
@keyframes jf-shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}
.jf-theme-btn{position:fixed;right:12px;bottom:calc(84px + env(safe-area-inset-bottom,0px));width:38px;height:38px;border-radius:50%;border:1px solid var(--jf-nav-border);background:var(--jf-nav-bg);color:var(--jf-active);box-shadow:0 4px 14px rgba(0,0,0,0.15);z-index:999;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;padding:0}
.jf-install{position:fixed;left:12px;right:12px;bottom:calc(16px + env(safe-area-inset-bottom,0px));max-width:480px;margin:0 auto;background:var(--jf-nav-bg);color:var(--jf-fg);border:1px solid var(--jf-nav-border);border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,0.2);padding:12px 14px;display:none;align-items:center;gap:10px;z-index:1001;font-family:'Poppins','Arial',sans-serif}
.jf-install.jf-on{display:flex}
.jf-install.jf-has-bar{bottom:calc(84px + env(safe-area-inset-bottom,0px))}
.jf-install-icon img{width:40px;height:40px;border-radius:10px;display:block}
.jf-install-text{flex:1;font-size:12px;line-height:1.4;color:var(--jf-text)}
.jf-install-text strong{display:block;font-size:14px;color:var(--jf-fg)}
.jf-btn-primary{background:#e91e63;color:#ffffff;border:0;border-radius:8px;padding:8px 14px;font-weight:600;font-size:13px;cursor:pointer;font-family:inherit}
.jf-btn-ghost{background:transparent;border:0;color:var(--jf-text);font-size:13px;cursor:pointer;padding:8px;font-family:inherit}
@media (prefers-reduced-motion:reduce){.jf-skel{animation:none}.jf-toast,.jf-nav,.jf-nav-item,#jf-progress{transition:none}}
@media print{.jf-nav,.jf-theme-btn,.jf-install,.jf-skel-overlay,#jf-toast-wrap,#jf-progress{display:none !important}}