:root{--bg-primary: #fefaf3;--bg-secondary: #ffffff;--bg-tertiary: #f8f9fa;--bg-card: #ffffff;--bg-overlay: rgba(255, 255, 255, .95);--text-primary: #2d1100;--text-secondary: #6c757d;--text-tertiary: #adb5bd;--text-muted: #999;--border-primary: #e9ecef;--border-secondary: #f0f0f0;--border-focus: #f48d00;--mat-form-field-outlined-error-outline-color: #e9ecef;--mat-form-field-outlined-container-shape: #e9ecef;--mat-sys-outline: #e9ecef;--mat-sys-corner-extra-small: 20px;--shadow-light: 0 2px 12px rgba(0, 0, 0, .04);--shadow-medium: 0 4px 16px rgba(0, 0, 0, .08);--shadow-heavy: 0 8px 25px rgba(0, 0, 0, .12);--gradient-primary: linear-gradient(90deg, #f48d00 0%, #f73e00 100%);--gradient-secondary: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);--success-color: #28a745;--error-color: #dc3545;--warning-color: #ffc107;--info-color: #17a2b8;--element-bg: #fdefe1;--element-border: 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var(--mat-sys-label-large-tracking));text-transform:var(--mat-button-protected-label-text-transform);min-width:unset;min-height:52px}button.btn--danger{background-image:linear-gradient(90deg,#dc3545,#c82333)}button.btn--round,button.btn--secondary.btn--round{border-radius:50%!important;min-height:unset;width:40px;height:40px;display:flex;align-items:center;justify-content:center;padding:0!important}button.btn--primary:hover{color:#fff;background-size:220% 220%;background-position:right center}button.btn--text,button.btn--secondary{padding:10px 19px;border-radius:20px!important;font-weight:500!important;font-size:var(--mat-button-protected-label-text-size, var(--mat-sys-label-large-size));letter-spacing:var(--mat-button-protected-label-text-tracking, var(--mat-sys-label-large-tracking));text-transform:var(--mat-button-protected-label-text-transform);min-width:unset;min-height:52px;background-color:var(--bg-tertiary);border:1px solid var(--border-primary)}button.btn--circle{margin-right:16px;border-radius:50%;width:52px;height:52px;display:flex;align-items:center;justify-content:center;background-color:var(--bg-tertiary);border:1px solid var(--border-primary);transition:all .3s ease}button.btn--text:hover{transform:translateY(-2px);box-shadow:0 4px 12px #f48d004d;color:#f5920c!important}.btn--primary:hover,.btn--text:hover,.btn--circle:hover,.icon-heart:hover,.user-menu-btn:hover,.audio-btn:hover,.remove-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #f48d004d;border-color:#f48d00!important}.container{max-width:1600px;margin:0 auto}.mat-mdc-menu-panel{border-radius:20px!important}.cdk-overlay-pane{background-color:var(--bg-secondary)}.mat-mdc-select-trigger,.mat-mdc-form-field-flex{padding:0 10px}.mdc-floating-label{padding:0 5px}.content-block,.post-detail-block .detail-block{background:var(--bg-card);border-radius:20px;box-shadow:var(--shadow-light);padding:32px 24px;margin-bottom:32px;border:1px solid var(--border-secondary)}.post-detail-function-block,.detail-function-block{background:var(--bg-card);border-radius:20px;box-shadow:var(--shadow-light);padding:32px 24px;border:1px solid var(--border-secondary)}main{max-width:1600px;margin:0 auto}.section{margin:32px 0 0}.section:last-child{margin-bottom:48px}.page-title{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin-bottom:50px;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-subtitle{font-size:1.2rem;color:var(--text-secondary);max-width:600px;margin:0 auto 32px;line-height:1.6;text-align:center}.grid{display:grid;gap:24px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-1{grid-template-columns:1fr}.card{background:var(--bg-card);border-radius:20px;box-shadow:var(--shadow-light);padding:0 0 12px;display:flex;flex-direction:column;min-height:320px;transition:all .3s ease;border:1px solid var(--border-secondary)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-heavy)}.image-container{width:100%;height:200px;border-top-left-radius:20px;border-top-right-radius:20px;overflow:hidden;position:relative}.image-placeholder{width:100%;height:120px;background:var(--bg-tertiary);border-top-left-radius:20px;border-top-right-radius:20px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:1rem;font-style:italic}.image{width:100%;height:100%;object-fit:cover}.text-title{font-size:1.1rem;font-weight:600;margin:12px 0 6px;color:var(--text-primary)}.text-excerpt{color:var(--text-secondary);font-size:.98rem;margin-bottom:10px;line-height:1.6}.text-level{font-size:.9rem;color:var(--info-color);margin-top:8px}.card-actions{margin-top:auto;display:flex;justify-content:flex-end;padding:12px 16px 0}.loading{text-align:center;padding:40px 20px;color:var(--text-secondary)}.error{text-align:center;padding:40px 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var(--border-primary);background-color:var(--bg-primary)}.btn-back:hover{transform:translateY(-4px);box-shadow:0 8px 25px #0000001a;border-color:#f48d00}@media (max-width: 1100px){.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.dashboard-content .page-header h1{margin-bottom:16px}.content-block{margin-bottom:8px}.section:last-child{margin-bottom:8px}.post-main-container{gap:8px!important}.mobile-user-info{justify-content:center}.mobile-nav a,.mobile-user-nav a{justify-content:left}.mobile-user-nav a .mdc-button__label{display:flex;gap:5px;align-items:center}.game-header h2{font-size:20px}.section{margin:8px 0 0}.grid-3,.grid-2{grid-template-columns:1fr}.page-title{font-size:2rem}.page-subtitle{font-size:1.1rem}.content-block{padding:24px 16px}.dashboard-content .page-header .btn--primary{font-size:0;padding:0;min-height:unset;line-height:unset;width:40px;height:40px}.page-header .description-h1{color:#6c757d;font-size:15px;display:block;font-weight:100;-webkit-text-fill-color:#6c757d;padding-right:50px}.dashboard-content .page-header h1{font-size:20px}.dashboard-content .page-header p{color:#6c757d;font-size:16px}.learning-session .progress-bar{display:none}.app-flashcard-game{width:100%}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-secondary);border-radius:16px;box-shadow:var(--shadow-heavy);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;color:var(--text-primary);font-size:1.25rem;font-weight:600}.modal-close{background:none;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer;padding:.25rem;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:.5rem;transition:all .2s ease}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.modal-body{padding:1.5rem}.modal-actions{display:flex;gap:5px;justify-content:end}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:var(--text-primary);font-weight:500}.form-group input,.form-group textarea{width:calc(100% - 22px)}.form-control{width:100%;padding:.75rem;border:1px solid var(--border-primary);border-radius:20px;background:var(--bg-tertiary);color:var(--text-primary);font-size:1rem;transition:border-color .3s;font-family:inherit}.form-control:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #f48d001a}textarea.form-control{resize:vertical;min-height:80px}select.form-control{cursor:pointer}.error-message{margin-top:.5rem;color:var(--error-color);font-size:.875rem}.warning-text{color:var(--error-color);font-size:.875rem;margin:1rem 0}@media (max-width: 768px){.modal{margin:1rem;border-radius:20px}.modal-header{padding:1.25rem}.modal-header h3{font-size:1.1rem}.modal-body{padding:1.25rem}.form-control{padding:.65rem;font-size:.9rem}.form-group label{font-size:.9rem}}.translation-popup{position:fixed!important;background:var(--bg-card)!important;border:1px solid var(--border-primary)!important;border-radius:12px!important;box-shadow:var(--shadow-medium)!important;z-index:10000!important;min-width:250px!important;max-width:350px!important;padding:0!important;animation:fadeIn .2s ease!important;display:block!important;visibility:visible!important;opacity:1!important}.popup-content{padding:1rem}.word-section h3{margin:0 0 .5rem;color:var(--text-primary);font-size:1.1rem;font-weight:600}.loading{color:var(--text-secondary);font-size:.9rem;margin-bottom:1rem}.translation{color:var(--text-primary);font-size:1rem;margin-bottom:1rem;line-height:1.4}.part-of-speech{color:var(--text-secondary);font-size:.8rem;font-style:italic;margin-bottom:.5rem}.translation-popup .actions{display:flex;gap:.5rem;justify-content:center}