*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #1a1a2e;--color-surface: #16213e;--color-surface-light: #1f3056;--color-primary: #4fc3f7;--color-primary-dark: #0288d1;--color-secondary: #b0bec5;--color-danger: #ef5350;--color-danger-dark: #c62828;--color-success: #66bb6a;--color-text: #e0e0e0;--color-text-muted: #90a4ae;--color-border: #37474f;--color-focus: #ffeb3b;--font-main: "Segoe UI", system-ui, -apple-system, sans-serif;--radius: 8px;--spacing: 1rem}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-main);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.skip-link{position:absolute;top:-100px;left:50%;transform:translate(-50%);background:var(--color-focus);color:#000;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:700;z-index:10000;text-decoration:none;transition:top .2s}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}header{background:var(--color-surface);border-bottom:2px solid var(--color-border);padding:var(--spacing) calc(var(--spacing) * 2);display:flex;justify-content:space-between;align-items:center}header h1{font-size:1.5rem;color:var(--color-primary)}main{flex:1;max-width:800px;width:100%;margin:0 auto;padding:calc(var(--spacing) * 2)}section{margin-bottom:calc(var(--spacing) * 2)}section h2{font-size:1.5rem;color:var(--color-primary);margin-bottom:var(--spacing);padding-bottom:.5rem;border-bottom:2px solid var(--color-border)}section h3{font-size:1.15rem;color:var(--color-text);margin-bottom:.75rem;margin-top:1.25rem}*:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px;box-shadow:0 0 0 6px #ffeb3b4d}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border:2px solid transparent;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;text-decoration:none;min-height:48px;min-width:48px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary-dark);color:#fff;border-color:var(--color-primary-dark)}.btn-primary:hover:not(:disabled){background:var(--color-primary);border-color:var(--color-primary)}.btn-secondary{background:var(--color-surface-light);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn-danger{background:var(--color-danger-dark);color:#fff;border-color:var(--color-danger-dark)}.btn-danger:hover:not(:disabled){background:var(--color-danger);border-color:var(--color-danger)}.btn-large{padding:1rem 2rem;font-size:1.1rem;width:100%;max-width:320px}.btn-link{background:none;border:none;color:var(--color-primary);text-decoration:underline;cursor:pointer;font-size:1rem;padding:.25rem 0}.btn-link:hover{color:var(--color-focus)}.form-group{margin-bottom:1.25rem}.form-group label{display:block;margin-bottom:.35rem;font-weight:600;color:var(--color-text)}.form-group input,.form-group select{width:100%;padding:.75rem;border:2px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:1rem;font-family:var(--font-main);transition:border-color .2s;min-height:48px}.form-group input:focus,.form-group select:focus{border-color:var(--color-primary)}.form-group input[aria-invalid=true],.form-group select[aria-invalid=true]{border-color:var(--color-danger)}.error-msg{display:block;color:var(--color-danger);font-size:.875rem;margin-top:.25rem;min-height:1.25rem}.form-toggle{margin-top:1rem;text-align:center;color:var(--color-text-muted)}.checkbox-group{display:flex;align-items:center;gap:.5rem}.checkbox-group input[type=checkbox]{width:20px;height:20px;min-height:auto;cursor:pointer}.checkbox-group label{margin-bottom:0;cursor:pointer}.menu-actions{display:flex;flex-direction:column;gap:.75rem;align-items:center;margin-bottom:1.5rem}.difficulty-options{display:flex;flex-direction:column;gap:.5rem;align-items:center;margin:1rem 0}#difficulty-selection{background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;margin-top:1rem;text-align:center}#difficulty-selection h3{margin-top:0;color:var(--color-primary)}#scoreboard{display:flex;justify-content:center;align-items:center;gap:1.5rem;font-size:1.5rem;font-weight:700;padding:1rem;background:var(--color-surface);border-radius:var(--radius);margin-bottom:1rem}#scoreboard span{padding:.5rem 1rem}.score-separator{color:var(--color-text-muted);font-size:2rem}#hand-value-info{text-align:center;margin-bottom:1rem;font-size:1.1rem;color:var(--color-text-muted)}#vira-info{display:flex;justify-content:center;gap:2rem;padding:.75rem;background:var(--color-surface-light);border-radius:var(--radius);margin-bottom:1rem}#vira-info p{font-size:1rem}.cards-container{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin:1rem 0}.card-btn{display:inline-flex;align-items:center;justify-content:center;min-width:140px;min-height:80px;padding:1rem 1.5rem;background:var(--color-surface);color:var(--color-text);border:3px solid var(--color-border);border-radius:var(--radius);font-size:1.15rem;font-weight:700;cursor:pointer;transition:all .2s ease}.card-btn:hover:not(:disabled){background:var(--color-primary-dark);border-color:var(--color-primary);transform:translateY(-4px)}.card-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.action-buttons{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin:1rem 0}.status-msg{text-align:center;padding:1rem;background:var(--color-surface-light);border-radius:var(--radius);font-size:1.1rem;font-weight:600;color:var(--color-primary);margin:1rem 0}#game-history{margin-top:1.5rem}#history-list{list-style:none;max-height:200px;overflow-y:auto;background:var(--color-surface);border-radius:var(--radius);padding:.75rem;border:1px solid var(--color-border)}#history-list li{padding:.35rem .5rem;border-bottom:1px solid var(--color-border);font-size:.95rem;color:var(--color-text-muted)}#history-list li:last-child{border-bottom:none;color:var(--color-text);font-weight:600}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:9999;padding:1rem}.modal-overlay[hidden]{display:none}.modal-content{background:var(--color-surface);border:2px solid var(--color-primary);border-radius:var(--radius);padding:2rem;max-width:500px;width:100%;text-align:center}.modal-content h2{color:var(--color-primary);border-bottom:none;margin-bottom:1rem}.modal-content p{margin-bottom:1.5rem;font-size:1.1rem;line-height:1.7}.modal-actions{display:flex;flex-direction:column;gap:.75rem;align-items:center}#stats-content{background:var(--color-surface);border-radius:var(--radius);padding:1.5rem}#stats-content p{font-size:1.15rem;padding:.5rem 0;border-bottom:1px solid var(--color-border)}#stats-content p:last-child{border-bottom:none}footer{text-align:center;padding:var(--spacing);color:var(--color-text-muted);font-size:.875rem;border-top:1px solid var(--color-border)}@media (max-width: 600px){main{padding:var(--spacing)}.card-btn{min-width:100px;min-height:60px;font-size:1rem}#scoreboard{font-size:1.2rem;gap:.75rem}.btn-large{max-width:100%}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}@media (forced-colors: active){.btn,.card-btn{border:2px solid ButtonText}.card-btn:disabled{opacity:1;border-style:dashed}}