@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-color: #f7f9fc;--surface-color: #ffffff;--text-primary: #1a1a24;--text-secondary: #6b7280;--border-color: #e5e7eb;--suit-red: #ef4444;--suit-black: #1a1a24;--joker-color: #8b5cf6;--primary: #2563eb;--primary-hover: #1d4ed8;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-float: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;-webkit-user-select:none;user-select:none}.container{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background-color:var(--bg-color);position:relative}@media(min-width:481px){body{background-color:#cbd5e1;display:flex;justify-content:center;align-items:center;min-height:100vh}.container{height:90vh;min-height:auto;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-float);border:1px solid var(--border-color)}}.header{padding:20px;text-align:center;background:var(--surface-color);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.header h1{font-size:1.25rem;font-weight:600;margin:0}.header-btn{background:none;border:none;cursor:pointer;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;padding:8px;border-radius:var(--radius-full);transition:background-color .2s}.header-btn:hover,.header-btn:active{background-color:var(--border-color);color:var(--text-primary)}.content{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column}.btn-primary{background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);padding:14px 20px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;width:100%;display:flex;justify-content:center;align-items:center;gap:8px}.btn-primary:active{transform:scale(.98);background-color:var(--primary-hover)}.btn-secondary{background-color:var(--surface-color);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:14px 20px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;width:100%;display:flex;justify-content:center;align-items:center;gap:8px}.btn-secondary:active{background-color:var(--border-color)}.bottom-nav{position:sticky;bottom:0;background:var(--surface-color);border-top:1px solid var(--border-color);display:flex;justify-content:space-around;padding:12px 0 calc(12px + env(safe-area-inset-bottom))}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary);text-decoration:none;font-size:.75rem;font-weight:500;gap:4px;padding:8px 16px;border-radius:var(--radius-md);transition:all .2s}.nav-item.active{color:var(--primary);background-color:#2563eb1a}.input-group{margin-bottom:20px}.input-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:8px}.input-field{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;font-family:Inter,sans-serif;background:var(--surface-color);transition:border-color .2s}.input-field:focus{outline:none;border-color:var(--primary)}*{-webkit-tap-highlight-color:transparent}.install-banner{background:var(--primary);color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow-sm);z-index:50}.install-content{display:flex;align-items:center;gap:12px}.install-icon{background:#fff3;border-radius:var(--radius-md);padding:8px;display:flex}.install-text{display:flex;flex-direction:column}.install-text strong{font-size:.95rem}.install-text span{font-size:.75rem;opacity:.9}.install-btn{background:#fff;color:var(--primary);border:none;border-radius:var(--radius-md);padding:8px 16px;font-weight:600;font-size:.875rem;cursor:pointer}.ios-install-modal{position:fixed;inset:0;background:#00000080;display:flex;justify-content:center;align-items:flex-end;z-index:100;padding-bottom:env(safe-area-inset-bottom)}.ios-install-content{background:var(--surface-color);width:100%;max-width:480px;border-top-left-radius:20px;border-top-right-radius:20px;padding:24px;position:relative;text-align:center;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.close-btn{position:absolute;top:16px;right:16px;background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px}.ios-install-content h3{margin-top:0;margin-bottom:8px;color:var(--text-primary)}.ios-install-content p{color:var(--text-secondary);font-size:.9rem;margin-bottom:20px}.ios-steps{display:flex;flex-direction:column;gap:12px;text-align:left;background:var(--bg-color);padding:16px;border-radius:var(--radius-md)}.step{display:flex;align-items:center;color:var(--text-primary);font-size:.95rem}.step span{font-weight:600;margin-right:8px;color:var(--primary)}