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(max-width:768px){.game-board-container{padding:var(--space-12)}.theme-card{padding:12px}.customization-content{margin-top:0}.game-interface{min-height:100vh}.app-subtitle,.theme-card h3{font-size:var(--font-size-lg)}.floating-actions{bottom:var(--space-8);right:var(--space-8);gap:var(--space-4)}.fab{width:36px;height:36px;font-size:var(--font-size-md)}.game-header{flex-direction:column;gap:var(--space-16);text-align:center}.game-stats{justify-content:center;gap:var(--space-8)}.mode-grid,.theme-grid{grid-template-columns:repeat(2,1fr)}.mode-grid{gap:var(--space-12)}.theme-grid{display:grid;gap:12px}.theme-card h3{margin-bottom:var(--space-4)}.mode-card{border-radius:var(--radius-md);padding:var(--space-12)}.mode-card p{margin-bottom:4px}.customization-grid{grid-template-columns:1fr;gap:12px}.achievement-notification{right:var(--space-12);left:var(--space-12);max-width:none;transform:translateY(-200px)}.touch-instructions{flex-direction:column;gap:var(--space-4);bottom:var(--space-4);left:var(--space-8);right:var(--space-8);padding:6px 8px;transform:none;border-radius:var(--radius-md);text-align:center}.modal-content{margin:var(--space-12);max-height:calc(100vh - 24px)}.app-title{margin-top:var(--space-16);font-size:2.5rem}}.hidden{display:none!important}#new-game-confirm{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1001;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}.new-game-confirm-modal .modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);backdrop-filter:blur(5px);border-radius:var(--radius-lg)}.new-game-confirm-modal .modal-content{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-20);max-width:400px;width:90%;text-align:center;box-shadow:var(--shadow-xl);position:relative;z-index:2;color:var(--color-text-primary)}.new-game-confirm-modal .modal-content h3{margin-bottom:var(--space-8);font-size:var(--font-size-3xl);color:var(--color-primary);font-weight:var(--font-weight-bold)}.new-game-confirm-modal .modal-content p{margin-bottom:var(--space-16);color:var(--color-text-secondary);line-height:1.4;font-size:var(--font-size-md)}.new-game-confirm-modal .modal-buttons{display:flex;gap:var(--space-8);justify-content:center}.new-game-confirm-modal .modal-buttons .btn{flex:1;max-width:120px;padding:var(--space-8) var(--space-12);font-weight:500}.new-game-confirm-modal .modal-buttons .btn-primary{background-color:var(--color-success);border-color:var(--color-success);color:var(--color-white)}.new-game-confirm-modal .modal-buttons .btn-primary:hover,.new-game-confirm-modal .modal-buttons .btn-secondary:hover{background-color:var(--color-teal-600);border-color:var(--color-teal-600);transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,.1)}.new-game-confirm-modal .modal-buttons .btn-secondary{background-color:var(--color-warning);border-color:var(--color-warning);color:var(--color-white)}.new-game-confirm-modal .modal-buttons .btn-secondary:hover{background-color:var(--color-orange-400);border-color:var(--color-orange-400)}.credit-line{text-align:center;padding:var(--space-10);margin-top:var(--space-12,12px);font-size:var(--font-size-md);color:var(--color-gray-400);font-weight:500;border-top:1px solid var(--color-border,rgba(0,0,0,.1));box-shadow:0 1px 3px rgba(0,0,0,.05)}.credit-line a{color:var(--color-primary);text-decoration:none;transition:all var(--duration-fast, .2s) ease}.credit-line a:hover{color:var(--color-primary-hover,#40a9ff);text-decoration:underline;transform:translateY(-1px)}.credit-line a:active{transform:translateY(0)}.touch-instructions.hidden+.credit-line{display:none}@media (max-width:768px){.new-game-confirm-modal .modal-content{padding:var(--space-16);width:95%;margin:var(--space-8)}.new-game-confirm-modal .modal-buttons{flex-direction:row;gap:var(--space-6)}.new-game-confirm-modal .modal-buttons .btn{max-width:100px}.credit-line{padding:var(--space-8,6px);margin-top:var(--space-8,8px);font-size:13px}#theme-fab{display:none!important}}