:root{--font-display: "Fredoka", "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--font-sans: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-hebrew: "Heebo", "Rubik", "Arial Hebrew", "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--bg-color: #fdfaf3;--bg-gradient: radial-gradient(900px circle at 88% -5%, rgba(251, 133, 0, .15), transparent 55%), radial-gradient(900px circle at 8% 105%, rgba(46, 196, 182, .15), transparent 55%), radial-gradient(700px circle at 50% 35%, rgba(0, 119, 182, .07), transparent 65%);--surface-color: #ffffff;--surface-elevated: #ffffff;--surface-subtle: #f6efe2;--surface-hover: #ede3cf;--surface-glass: rgba(255, 253, 248, .9);--text-main: #0d233a;--text-secondary: #24415e;--text-muted: #56708a;--primary-color: #0077b6;--primary-hover: #0096c7;--primary-lip: #023e8a;--primary-soft: #e0f4ff;--primary-border: #90e0ef;--focus-ring: rgba(0, 119, 182, .28);--accent-color: #fb8500;--accent-sun: #ffb703;--accent-lip: #cc6b00;--accent-soft: #fff0d4;--accent-border: #ffd166;--new-color: #0077b6;--new-bg: #dbf0fe;--new-border: #90e0ef;--new-lip: #72c8e8;--learning-color: #c25e00;--learning-bg: #fff0d4;--learning-border: #ffd166;--learning-lip: #f4b942;--success-color: #0b8a7d;--success-bg: #d8f8f5;--success-border: #64dfdf;--success-lip: #3ec6b8;--danger-color: #c9184a;--danger-bg: #ffe3e6;--danger-border: #ff8fa3;--danger-lip: #ff758f;--border-color: #e2d9c5;--border-strong: #cfc2a9;--shadow-xs: 0 2px 0 rgba(13, 35, 58, .06);--shadow-sm: 0 3px 0 #dfd5be, 0 6px 14px -2px rgba(13, 35, 58, .07);--shadow-md: 0 4px 0 #dfd5be, 0 14px 28px -6px rgba(13, 35, 58, .09);--shadow-lg: 0 6px 0 #d5c8ac, 0 22px 40px -10px rgba(13, 35, 58, .12);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 24px;--radius-pill: 9999px;--transition-fast: .16s cubic-bezier(.34, 1.56, .64, 1);--transition-normal: .26s cubic-bezier(.34, 1.56, .64, 1)}[data-theme=dark]{--bg-color: #0b1929;--bg-gradient: radial-gradient(900px circle at 88% -5%, rgba(251, 133, 0, .16), transparent 55%), radial-gradient(900px circle at 8% 105%, rgba(46, 196, 182, .15), transparent 55%), radial-gradient(700px circle at 50% 35%, rgba(0, 150, 199, .14), transparent 65%);--surface-color: #132840;--surface-elevated: #1b3654;--surface-subtle: #18314c;--surface-hover: #234567;--surface-glass: rgba(19, 40, 64, .88);--text-main: #fdfaf3;--text-secondary: #d4e4f4;--text-muted: #8fb0cc;--primary-color: #38bdf8;--primary-hover: #7dd3fc;--primary-lip: #0284c7;--primary-soft: rgba(56, 189, 248, .16);--primary-border: rgba(56, 189, 248, .42);--focus-ring: rgba(56, 189, 248, .34);--accent-color: #fb8500;--accent-sun: #ffb703;--accent-lip: #c25e00;--accent-soft: rgba(251, 133, 0, .18);--accent-border: rgba(255, 183, 3, .42);--new-color: #38bdf8;--new-bg: rgba(14, 165, 233, .18);--new-border: rgba(56, 189, 248, .4);--new-lip: rgba(2, 132, 199, .65);--learning-color: #ffb703;--learning-bg: rgba(251, 133, 0, .18);--learning-border: rgba(255, 183, 3, .42);--learning-lip: rgba(217, 119, 6, .65);--success-color: #2ec4b6;--success-bg: rgba(46, 196, 182, .18);--success-border: rgba(46, 196, 182, .42);--success-lip: rgba(13, 148, 136, .65);--danger-color: #ff758f;--danger-bg: rgba(231, 29, 54, .18);--danger-border: rgba(255, 117, 143, .42);--danger-lip: rgba(190, 18, 60, .65);--border-color: #234567;--border-strong: #315b85;--shadow-xs: 0 2px 0 rgba(4, 11, 20, .45);--shadow-sm: 0 3px 0 #07121f, 0 6px 14px -2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 0 #07121f, 0 14px 28px -6px rgba(0, 0, 0, .5);--shadow-lg: 0 6px 0 #07121f, 0 22px 40px -10px rgba(0, 0, 0, .6)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg-color: #0b1929;--bg-gradient: radial-gradient(900px circle at 88% -5%, rgba(251, 133, 0, .16), transparent 55%), radial-gradient(900px circle at 8% 105%, rgba(46, 196, 182, .15), transparent 55%), radial-gradient(700px circle at 50% 35%, rgba(0, 150, 199, .14), transparent 65%);--surface-color: #132840;--surface-elevated: #1b3654;--surface-subtle: #18314c;--surface-hover: #234567;--surface-glass: rgba(19, 40, 64, .88);--text-main: #fdfaf3;--text-secondary: #d4e4f4;--text-muted: #8fb0cc;--primary-color: #38bdf8;--primary-hover: #7dd3fc;--primary-lip: #0284c7;--primary-soft: rgba(56, 189, 248, .16);--primary-border: rgba(56, 189, 248, .42);--focus-ring: rgba(56, 189, 248, .34);--accent-color: #fb8500;--accent-sun: #ffb703;--accent-lip: #c25e00;--accent-soft: rgba(251, 133, 0, .18);--accent-border: rgba(255, 183, 3, .42);--new-color: #38bdf8;--new-bg: rgba(14, 165, 233, .18);--new-border: rgba(56, 189, 248, .4);--new-lip: rgba(2, 132, 199, .65);--learning-color: #ffb703;--learning-bg: rgba(251, 133, 0, .18);--learning-border: rgba(255, 183, 3, .42);--learning-lip: rgba(217, 119, 6, .65);--success-color: #2ec4b6;--success-bg: rgba(46, 196, 182, .18);--success-border: rgba(46, 196, 182, .42);--success-lip: rgba(13, 148, 136, .65);--danger-color: #ff758f;--danger-bg: rgba(231, 29, 54, .18);--danger-border: rgba(255, 117, 143, .42);--danger-lip: rgba(190, 18, 60, .65);--border-color: #234567;--border-strong: #315b85;--shadow-xs: 0 2px 0 rgba(4, 11, 20, .45);--shadow-sm: 0 3px 0 #07121f, 0 6px 14px -2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 0 #07121f, 0 14px 28px -6px rgba(0, 0, 0, .5);--shadow-lg: 0 6px 0 #07121f, 0 22px 40px -10px rgba(0, 0, 0, .6)}}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font-sans);background-color:var(--bg-color);background-image:var(--bg-gradient);background-attachment:fixed;color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;transition:background-color .2s ease,color .2s ease}kbd{display:inline-block;padding:.15rem .45rem;font-family:var(--font-mono);font-size:.75rem;font-weight:700;line-height:1.2;color:var(--text-secondary);background-color:var(--surface-subtle);border:1.5px solid var(--border-strong);border-radius:6px;box-shadow:0 2px 0 var(--border-strong)}.app-container{max-width:980px;margin:0 auto;padding:1.5rem 1.25rem 3.5rem}.app-main{display:flex;flex-direction:column}.app-header{position:sticky;top:.75rem;z-index:30;background:var(--surface-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:.8rem 1.2rem;margin-bottom:2rem;box-shadow:var(--shadow-sm)}.header-top-row{display:flex;justify-content:space-between;align-items:center;width:100%;flex-wrap:wrap;gap:.85rem}.brand-lockup{display:flex;align-items:center;gap:.75rem}.brand-mark{width:2.45rem;height:2.45rem;border-radius:12px;background:linear-gradient(135deg,var(--accent-color) 0%,var(--accent-sun) 100%);color:#0d233a;font-family:var(--font-hebrew);font-size:1.45rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center;border:1.5px solid rgba(13,35,58,.14);box-shadow:0 3px 0 var(--accent-lip),0 6px 14px #fb850047;flex-shrink:0;transition:transform var(--transition-fast)}.brand-lockup:hover .brand-mark{transform:rotate(-6deg) scale(1.06)}.brand-text{display:flex;flex-direction:column}.brand-text h1{font-family:var(--font-display);font-size:1.35rem;font-weight:700;letter-spacing:-.01em;color:var(--text-main);margin:0;line-height:1.1}.brand-subtitle{font-size:.72rem;font-weight:700;text-transform:uppercase;color:var(--accent-color);letter-spacing:.05em}.header-nav{display:inline-flex;gap:.3rem;background:var(--surface-subtle);border:1.5px solid var(--border-color);padding:.28rem;border-radius:var(--radius-pill)}.nav-tab{background:transparent;border:none;padding:.45rem 1.15rem;border-radius:var(--radius-pill);font-family:var(--font-display);font-size:.92rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.nav-tab:hover:not(.active){color:var(--text-main);background:var(--surface-hover)}.nav-tab.active{background:linear-gradient(135deg,#0077b6,#0096c7);color:#fff;box-shadow:0 2px #023e8a,0 4px 10px #0077b640;transform:translateY(-1px)}.nav-tab:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}.header-controls{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap}.theme-toggle{display:inline-flex;align-items:center;gap:.2rem;background:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-pill);padding:.22rem}.theme-toggle-option{background:transparent;border:none;width:2rem;height:2rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.9rem;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast)}.theme-toggle-option:hover:not(.active){color:var(--text-main);background:var(--surface-hover);transform:scale(1.08)}.theme-toggle-option.active{background:var(--accent-sun);color:#0d233a;box-shadow:0 2px 0 var(--accent-lip);transform:scale(1.05)}.theme-toggle-option:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}.header-auth{display:flex;align-items:center;gap:.6rem}.social-buttons{display:flex;align-items:center;gap:.45rem}.btn-auth{font-size:.8rem;padding:.42rem .8rem;border-radius:var(--radius-pill)}.user-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.25rem .7rem .25rem .3rem;background:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-pill);font-size:.85rem;font-weight:700;color:var(--text-main)}.user-avatar{width:1.65rem;height:1.65rem;border-radius:50%;object-fit:cover}.user-avatar-fallback{width:1.65rem;height:1.65rem;border-radius:50%;background:linear-gradient(135deg,var(--accent-color),var(--accent-sun));color:#0d233a;font-size:.75rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center}.auth-error{color:var(--danger-color);font-size:.78rem;font-weight:600}.flashcard-generator{background:var(--surface-color);border:2px solid var(--border-color);border-top:5px solid var(--accent-color);border-radius:var(--radius-xl);padding:2rem;box-shadow:var(--shadow-md)}.studio-header{margin-bottom:1.5rem}.studio-header-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;margin-bottom:.45rem}.flashcard-generator h2{font-family:var(--font-display);font-size:1.6rem;font-weight:700;letter-spacing:-.01em;margin:0;color:var(--text-main)}.studio-step-badge{display:inline-flex;align-items:center;background:var(--accent-soft);color:var(--learning-color);border:1.5px solid var(--accent-border);box-shadow:0 2px 0 var(--learning-lip);font-family:var(--font-display);font-size:.8rem;font-weight:700;padding:.3rem .85rem;border-radius:var(--radius-pill);letter-spacing:.02em}.description{color:var(--text-secondary);font-size:.95rem;margin:0}.error-banner{background-color:var(--danger-bg);border:1.5px solid var(--danger-border);border-left:5px solid var(--danger-color);color:var(--danger-color);border-radius:var(--radius-md);padding:.85rem 1.1rem;margin-bottom:1.25rem;font-size:.9rem;font-weight:600}.success-banner{background-color:var(--success-bg);border:1.5px solid var(--success-border);border-left:5px solid var(--success-color);color:var(--success-color);border-radius:var(--radius-md);padding:.85rem 1.1rem;margin-bottom:1.25rem;font-size:.9rem;font-weight:600}.loading-banner{background-color:var(--primary-soft);border:1.5px solid var(--primary-border);border-left:5px solid var(--primary-color);color:var(--primary-color);border-radius:var(--radius-md);padding:1rem 1.25rem;margin-bottom:1.25rem;font-size:.95rem}.loading-header{display:flex;align-items:center;gap:.75rem;font-family:var(--font-display);font-weight:700}.loading-steps{list-style:none;margin:.75rem 0 0;padding:0 0 0 1.85rem;display:flex;flex-direction:column;gap:.4rem;font-size:.875rem}.loading-step{display:flex;align-items:center;gap:.5rem;transition:color .2s ease,opacity .2s ease}.loading-step-pending{color:var(--text-muted);opacity:.7}.loading-step-active{color:var(--primary-color);font-weight:700}.loading-step-done{color:var(--success-color);font-weight:600}.step-indicator{display:inline-block;width:1rem;text-align:center}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:1.15rem;height:1.15rem;border:2.5px solid var(--primary-border);border-top-color:var(--accent-color);border-radius:50%;display:inline-block;flex-shrink:0;animation:spin .8s linear infinite}.btn-spinner{width:.95rem;height:.95rem;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;display:inline-block;margin-right:.5rem;vertical-align:-.125em;animation:spin .8s linear infinite}.deck-settings{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-bottom:1.5rem;padding:1.15rem;background:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-md)}.deck-setting-field{display:flex;flex-direction:column;gap:.4rem}.deck-setting-field label{font-family:var(--font-display);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary)}.deck-name-input,.voice-select{font-size:.95rem;font-weight:600;padding:.65rem .9rem;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text-main);background-color:var(--surface-color);font-family:inherit;box-shadow:inset 0 1px 2px #0d233a0a;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.deck-name-input:focus,.voice-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--focus-ring)}.composer-surface{background:var(--surface-color);border:2px solid var(--border-color);border-radius:var(--radius-md);padding:1.2rem;margin-bottom:1.25rem;box-shadow:var(--shadow-xs)}.composer-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;padding-bottom:.9rem;margin-bottom:1rem;border-bottom:1.5px solid var(--border-color)}.composer-toolbar-left{display:flex;align-items:center;gap:.6rem}.composer-toolbar-title{font-family:var(--font-display);font-size:.98rem;font-weight:700;color:var(--text-main)}.composer-count-badge{background:var(--new-bg);color:var(--new-color);border:1.5px solid var(--new-border);font-family:var(--font-display);font-size:.76rem;font-weight:700;padding:.15rem .6rem;border-radius:var(--radius-pill)}.list-controls{display:flex;flex-wrap:wrap;gap:.5rem}.card-input-list{display:flex;flex-direction:column;gap:.65rem}.card-input-row{display:flex;align-items:center;gap:.6rem}.row-index{font-size:.82rem;font-weight:700;font-family:var(--font-mono);color:var(--accent-color);width:2rem;text-align:right;flex-shrink:0}.hebrew-input{flex:1;font-family:var(--font-hebrew);font-size:1.35rem;font-weight:600;line-height:1.45;padding:.55rem .95rem;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-color);color:var(--text-main);direction:rtl;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast)}.hebrew-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--focus-ring)}.btn-remove{background:var(--surface-subtle);border:1.5px solid var(--border-color);color:var(--text-muted);font-size:.95rem;cursor:pointer;width:2.3rem;height:2.3rem;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);transition:all var(--transition-fast);flex-shrink:0}.btn-remove:hover:not(:disabled){background-color:var(--danger-bg);border-color:var(--danger-border);color:var(--danger-color);transform:scale(1.06)}.btn-remove:disabled{opacity:.45;cursor:not-allowed}.btn-secondary{background:var(--surface-subtle);border:1.5px solid var(--border-strong);color:var(--text-secondary);padding:.5rem 1rem;border-radius:var(--radius-sm);font-family:var(--font-display);font-size:.88rem;font-weight:600;cursor:pointer;box-shadow:0 2px 0 var(--border-strong);transition:all var(--transition-fast)}.btn-secondary:hover:not(:disabled){background:var(--surface-hover);color:var(--text-main);transform:translateY(-1px);box-shadow:0 3px 0 var(--border-strong)}.btn-secondary:active:not(:disabled){transform:translateY(1px);box-shadow:0 1px 0 var(--border-strong)}.btn-secondary:focus-visible,.btn-primary:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}.btn-secondary:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#0077b6,#0096c7);color:#fff;border:none;border-radius:var(--radius-md);padding:.8rem 1.6rem;font-family:var(--font-display);font-size:1rem;font-weight:700;cursor:pointer;box-shadow:0 4px #023e8a,0 8px 18px #0077b640;transition:transform var(--transition-fast),box-shadow var(--transition-fast),opacity var(--transition-fast)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px #023e8a,0 12px 22px #0077b652}.btn-primary:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px #023e8a}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.file-drop-zone{width:100%;background:var(--surface-subtle);border:2px dashed var(--border-strong);border-radius:var(--radius-md);padding:1.05rem 1.25rem;margin-bottom:1.25rem;color:var(--text-secondary);font-family:var(--font-display);font-size:.92rem;font-weight:600;text-align:center;cursor:pointer;transition:all var(--transition-fast)}.file-drop-zone:hover:not(:disabled),.file-drop-zone-active:not(:disabled){border-color:var(--accent-color);background-color:var(--accent-soft);color:var(--learning-color);transform:translateY(-1px)}.file-drop-zone:disabled{opacity:.6;cursor:not-allowed}.file-input-hidden{display:none}.bulk-paste-section{background:var(--surface-subtle);border:1.5px solid var(--border-strong);border-radius:var(--radius-md);padding:1.15rem;margin-bottom:1.25rem;display:flex;flex-direction:column;gap:.65rem}.bulk-paste-section label{font-family:var(--font-display);font-size:.88rem;font-weight:600;color:var(--text-secondary)}.bulk-textarea{width:100%;font-family:var(--font-hebrew);font-size:1.2rem;line-height:1.45;padding:.7rem .9rem;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-color);color:var(--text-main);direction:rtl;resize:vertical}.bulk-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--focus-ring)}.action-section{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;border-top:1.5px solid var(--border-color);padding-top:1.35rem}.composer-hint{font-size:.84rem;font-weight:500;color:var(--text-muted)}.preview-container{display:flex;flex-direction:column;gap:1.25rem}.preview-actions{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;padding:.95rem 1.15rem;background:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-md)}.preview-actions-right{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem}.badge-count{background-color:var(--new-bg);color:var(--new-color);border:1.5px solid var(--new-border);font-family:var(--font-display);font-size:.82rem;font-weight:700;padding:.35rem .85rem;border-radius:var(--radius-pill);white-space:nowrap}.btn-back{display:inline-flex;align-items:center;gap:.35rem}.table-responsive{width:100%;overflow-x:auto;border:2px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.preview-table{width:100%;border-collapse:collapse;text-align:left;font-size:.95rem;background-color:var(--surface-color)}.preview-table th{background-color:var(--surface-subtle);color:var(--text-secondary);font-family:var(--font-display);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;padding:.85rem 1rem;border-bottom:1.5px solid var(--border-color)}.preview-table td{padding:.85rem 1rem;border-bottom:1px solid var(--border-color);vertical-align:middle}.preview-table tr:last-child td{border-bottom:none}.preview-table tr.row-selected{background-color:var(--primary-soft)}.preview-table tbody tr:hover{background-color:var(--surface-subtle)}.col-checkbox{width:3rem;text-align:center}.row-checkbox{width:1.15rem;height:1.15rem;cursor:pointer;accent-color:var(--primary-color)}.col-index{width:2.5rem;color:var(--accent-color);font-family:var(--font-mono);font-weight:700;font-size:.82rem;text-align:center}.col-hebrew{min-width:170px}.hebrew-cell{display:flex;flex-direction:column;gap:.2rem}.vocalized-text{font-family:var(--font-hebrew);font-size:1.42rem;font-weight:700;color:var(--text-main);line-height:1.4}.raw-text{font-family:var(--font-hebrew);font-size:.85rem;color:var(--text-muted);line-height:1.25}.col-translation{min-width:220px}.translation-input{width:100%;font-family:inherit;font-size:.95rem;font-weight:500;padding:.52rem .78rem;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text-main);background-color:var(--surface-color);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.translation-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--focus-ring)}.translation-input.input-error{border-color:var(--danger-color);background-color:var(--danger-bg)}.translation-input.input-error:focus{border-color:var(--danger-color);box-shadow:0 0 0 3px #c9184a33}.col-audio{width:6.75rem;text-align:center;white-space:nowrap}.audio-actions{display:inline-flex;align-items:center;justify-content:center;gap:.45rem}.btn-audio{width:2.35rem;height:2.35rem;border-radius:50%;border:1.5px solid var(--border-strong);background:var(--surface-subtle);color:var(--text-main);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:.9rem;box-shadow:0 2px 0 var(--border-strong);transition:all var(--transition-fast)}.btn-audio:hover:not(:disabled){background:var(--accent-soft);border-color:var(--accent-border);color:var(--learning-color);transform:scale(1.08) translateY(-1px);box-shadow:0 3px 0 var(--learning-lip)}.btn-audio.playing{background:var(--accent-color);color:#fff;border-color:var(--accent-color);box-shadow:0 0 0 4px #fb850047}.btn-audio:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-audio-failed{background:var(--danger-bg);color:var(--danger-color);border-color:var(--danger-border)}.spinner-sm{width:.9rem;height:.9rem;border:2px solid var(--primary-border);border-top-color:var(--accent-color);border-radius:50%;display:inline-block;animation:spin .8s linear infinite}.pagination-controls{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem .85rem;margin-top:.9rem;background-color:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-sm)}.pagination-info{font-family:var(--font-display);font-size:.875rem;font-weight:600;color:var(--text-secondary)}.progress-banner{display:flex;flex-direction:column;gap:.5rem;margin-bottom:0}.progress-stats{display:flex;flex-wrap:wrap;gap:1.5rem;font-size:.875rem;padding-left:1.9rem;color:var(--text-secondary)}.retry-banner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;background-color:var(--learning-bg);border:1.5px solid var(--learning-border);border-left:5px solid var(--accent-color);color:var(--learning-color);border-radius:var(--radius-md);padding:.85rem 1.1rem;font-size:.9rem;font-weight:700}.btn-retry{background-color:var(--surface-color);border-color:var(--learning-border);color:var(--learning-color)}.status-badge{display:inline-block;align-self:flex-start;font-family:var(--font-display);font-size:.75rem;font-weight:700;padding:.15rem .6rem;border-radius:var(--radius-pill)}.status-pending{background-color:var(--primary-soft);color:var(--primary-color)}.status-failed{background-color:var(--danger-bg);color:var(--danger-color)}.btn-study-now{background:var(--success-bg);color:var(--success-color);border:1.5px solid var(--success-border);box-shadow:0 3px 0 var(--success-lip);font-family:var(--font-display);font-weight:700;padding:.65rem 1.2rem;border-radius:var(--radius-sm);cursor:pointer}.btn-study-now:hover:not(:disabled){background:var(--success-bg);color:var(--success-color);transform:translateY(-2px);box-shadow:0 4px 0 var(--success-lip)}.study-dashboard{display:flex;flex-direction:column;gap:2rem}.study-dashboard-loading,.study-dashboard-error,.empty-decks-state{background:var(--surface-color);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:2.5rem 2rem;text-align:center;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.85rem;color:var(--text-secondary)}.study-summary-card{background:var(--surface-color);border:2px solid var(--border-color);border-radius:var(--radius-xl);padding:1.75rem 2rem;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:1.5rem}.study-summary-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1.25rem;padding:1.5rem 1.65rem;border-radius:var(--radius-lg);background:linear-gradient(135deg,#0077b6,#0096c7 58%,#2ec4b6);color:#fff;border:2px solid rgba(255,255,255,.22);box-shadow:0 6px #023e8a,0 14px 28px -6px #0077b659}.study-kicker{display:inline-block;font-family:var(--font-display);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#fff3b0;background:#0d233a3d;padding:.2rem .65rem;border-radius:var(--radius-pill);margin-bottom:.35rem}.study-summary-header h2{font-family:var(--font-display);margin:0 0 .35rem;font-size:1.55rem;font-weight:700;letter-spacing:-.01em;color:#fff}.study-summary-header p{margin:0;font-size:.92rem;color:#e0f7fa}.study-summary-actions{display:flex;align-items:center}.btn-primary-study{background:linear-gradient(180deg,#ffd166,#ffb703);color:#0d233a;border:2px solid #0d233a;font-family:var(--font-display);font-size:1.02rem;font-weight:700;padding:.85rem 1.7rem;border-radius:var(--radius-md);cursor:pointer;box-shadow:0 4px #cc6b00,0 8px 16px #0003;transition:transform var(--transition-fast),box-shadow var(--transition-fast),opacity var(--transition-fast);white-space:nowrap}.btn-primary-study:hover:not(:disabled){transform:translateY(-2px) scale(1.02);box-shadow:0 6px #cc6b00,0 12px 22px #00000047}.btn-primary-study:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px #cc6b00}.btn-primary-study:disabled{opacity:.55;cursor:not-allowed;transform:none}.study-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:1rem}.stat-box{display:flex;flex-direction:column;align-items:flex-start;padding:1.05rem 1.2rem;border-radius:var(--radius-md);background:var(--surface-subtle);border:2px solid var(--border-color);border-top-width:4px;box-shadow:var(--shadow-xs);transition:transform var(--transition-fast)}.stat-box:hover{transform:translateY(-2px)}.stat-value{font-family:var(--font-display);font-size:2rem;font-weight:700;line-height:1.1;color:var(--text-main)}.stat-label{font-family:var(--font-display);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-top:.3rem}.stat-box.new-box{border-top-color:var(--new-color)}.stat-box.new-box .stat-value{color:var(--new-color)}.stat-box.learning-box{border-top-color:var(--accent-color)}.stat-box.learning-box .stat-value{color:var(--learning-color)}.stat-box.review-box{border-top-color:var(--success-color)}.stat-box.review-box .stat-value{color:var(--success-color)}.stat-box.total-box{border-top-color:var(--accent-sun)}.stat-box.total-box .stat-value{color:var(--primary-color)}.decks-list-section{display:flex;flex-direction:column;gap:1.15rem}.decks-list-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem}.decks-list-header h3{font-family:var(--font-display);margin:0;font-size:1.35rem;font-weight:700;letter-spacing:-.01em}.decks-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.2rem}.deck-card{background:var(--surface-color);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:1.4rem;display:flex;flex-direction:column;gap:.95rem;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast)}.deck-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary-border)}.deck-title{font-family:var(--font-display);margin:0 0 .3rem;font-size:1.15rem;font-weight:700;color:var(--text-main)}.deck-meta{display:flex;gap:.5rem;font-size:.82rem;font-weight:600;color:var(--text-muted)}.deck-progress-bar{height:8px;width:100%;background:var(--surface-subtle);border-radius:var(--radius-pill);overflow:hidden;display:flex;border:1px solid var(--border-color)}.deck-progress-segment{height:100%;transition:width var(--transition-normal)}.deck-progress-segment.segment-review{background:var(--success-color)}.deck-progress-segment.segment-learning{background:var(--accent-color)}.deck-progress-segment.segment-new{background:var(--new-color)}.deck-badges{display:flex;gap:.45rem;flex-wrap:wrap}.badge{font-family:var(--font-display);font-size:.76rem;font-weight:700;padding:.24rem .65rem;border-radius:var(--radius-pill);border:1.5px solid transparent}.badge-new{background:var(--new-bg);color:var(--new-color);border-color:var(--new-border)}.badge-learning{background:var(--learning-bg);color:var(--learning-color);border-color:var(--learning-border)}.badge-review{background:var(--success-bg);color:var(--success-color);border-color:var(--success-border)}.deck-actions{display:flex;gap:.65rem;margin-top:auto;padding-top:.35rem}.btn-study-deck{flex:1;background:var(--primary-soft);color:var(--primary-color);border:1.5px solid var(--primary-border);box-shadow:0 3px 0 var(--new-lip);font-family:var(--font-display);font-size:.88rem;font-weight:700;padding:.58rem .9rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.btn-study-deck:hover:not(:disabled){background:var(--primary-color);border-color:var(--primary-color);color:#fff;transform:translateY(-1px);box-shadow:0 4px 0 var(--primary-lip)}.btn-study-deck:active:not(:disabled){transform:translateY(1px);box-shadow:0 1px 0 var(--primary-lip)}.btn-study-deck:disabled{opacity:.5;cursor:not-allowed}.btn-deck-edit{background:var(--surface-subtle);color:var(--text-secondary);border:1.5px solid var(--border-strong);box-shadow:0 3px 0 var(--border-strong);font-family:var(--font-display);font-size:.86rem;font-weight:600;padding:.58rem .9rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.btn-deck-edit:hover{background:var(--surface-hover);color:var(--text-main);transform:translateY(-1px)}.study-session{display:flex;flex-direction:column;gap:1.15rem}.study-session-loading{background:var(--surface-color);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:3rem 2rem;text-align:center;color:var(--text-secondary);font-family:var(--font-display);font-weight:600;box-shadow:var(--shadow-sm)}.session-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem;background:var(--surface-color);padding:.8rem 1.15rem;border-radius:var(--radius-md);border:2px solid var(--border-color);box-shadow:var(--shadow-xs)}.session-header-left,.session-header-right{display:flex;align-items:center;gap:.75rem}.btn-undo{background:var(--learning-bg);border:1.5px solid var(--learning-border);box-shadow:0 2px 0 var(--learning-lip);color:var(--learning-color);border-radius:var(--radius-sm);padding:.42rem .85rem;font-family:var(--font-display);font-size:.84rem;font-weight:700;cursor:pointer;transition:transform var(--transition-fast)}.btn-undo:hover:not(:disabled){transform:translateY(-1px)}.session-deck-name{font-family:var(--font-display);font-weight:700;font-size:1rem;color:var(--text-main)}.mode-toggle{display:inline-flex;background:var(--surface-subtle);border:1.5px solid var(--border-color);padding:.22rem;border-radius:var(--radius-pill)}.mode-btn{background:transparent;border:none;padding:.38rem .9rem;border-radius:var(--radius-pill);font-family:var(--font-display);font-size:.82rem;font-weight:600;cursor:pointer;color:var(--text-muted);transition:all var(--transition-fast)}.mode-btn.active{background:var(--surface-color);color:var(--primary-color);box-shadow:var(--shadow-xs)}.session-counter{font-family:var(--font-display);font-size:.85rem;font-weight:600;color:var(--text-secondary);background:var(--surface-subtle);padding:.32rem .75rem;border-radius:var(--radius-pill);border:1.5px solid var(--border-color)}.session-counter strong{color:var(--accent-color)}.session-error-banner{background:var(--danger-bg);border:1.5px solid var(--danger-border);color:var(--danger-color);border-radius:var(--radius-md);padding:.75rem 1rem;font-size:.9rem;font-weight:600}.session-progress-track{width:100%;height:9px;background:var(--surface-subtle);border:1.5px solid var(--border-color);border-radius:var(--radius-pill);overflow:hidden}.session-progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-color) 0%,var(--accent-sun) 50%,#2ec4b6 100%);border-radius:var(--radius-pill);transition:width var(--transition-normal)}.study-flashcard{background:var(--surface-color);border:2px solid var(--border-color);border-top:6px solid var(--accent-color);border-radius:var(--radius-xl);padding:3.25rem 2.25rem;min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:var(--shadow-lg);transition:border-color var(--transition-normal),box-shadow var(--transition-normal)}.study-flashcard.flipped{border-top-color:var(--success-color)}.card-prompt-type{display:inline-block;font-family:var(--font-display);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--success-color);background:var(--success-bg);border:1.5px solid var(--success-border);padding:.28rem .85rem;border-radius:var(--radius-pill);margin-bottom:1.5rem}.card-hebrew-text{font-family:var(--font-hebrew);font-size:3.4rem;font-weight:700;line-height:1.4;margin-bottom:1.5rem;color:var(--text-main)}.card-listen-prompt{margin-bottom:1.5rem;display:flex;flex-direction:column;align-items:center}@keyframes pulse-ring{0%{box-shadow:0 0 #fb850057}70%{box-shadow:0 0 0 16px #fb850000}to{box-shadow:0 0 #fb850000}}.headphones-icon{width:4.6rem;height:4.6rem;border-radius:50%;background:var(--accent-soft);border:2px solid var(--accent-border);font-size:2.2rem;display:inline-flex;align-items:center;justify-content:center;margin-bottom:.85rem;animation:pulse-ring 2.2s infinite}.btn-replay-audio{background:var(--surface-subtle);border:1.5px solid var(--border-strong);box-shadow:0 3px 0 var(--border-strong);color:var(--text-main);border-radius:var(--radius-pill);padding:.58rem 1.3rem;font-family:var(--font-display);font-size:.92rem;font-weight:600;cursor:pointer;margin-bottom:2rem;transition:all var(--transition-fast)}.btn-replay-audio:hover{background:var(--accent-soft);border-color:var(--accent-border);box-shadow:0 4px 0 var(--learning-lip);color:var(--learning-color);transform:translateY(-1px)}.btn-show-answer{background:linear-gradient(135deg,#fb8500,#ffb703);color:#0d233a;border:2px solid #0d233a;font-family:var(--font-display);font-size:1.08rem;font-weight:700;padding:.88rem 2.6rem;border-radius:var(--radius-md);cursor:pointer;box-shadow:0 4px #cc6b00,0 8px 18px #fb850047;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.btn-show-answer:hover{transform:translateY(-2px);box-shadow:0 6px #cc6b00,0 12px 24px #fb85005c}.btn-show-answer:active{transform:translateY(2px);box-shadow:0 2px #cc6b00}.card-divider{width:100%;border:0;height:2px;background:var(--border-color);margin:1.75rem 0}.card-back{width:100%;display:flex;flex-direction:column;align-items:center}.card-translation{font-family:var(--font-display);font-size:1.85rem;font-weight:700;color:var(--text-main);margin-bottom:2rem}.rating-buttons-container{width:100%;max-width:560px}.rating-help-text{font-family:var(--font-display);font-size:.84rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:.85rem}.rating-buttons-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem}.rating-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:.85rem .5rem;border-radius:var(--radius-md);border:2px solid transparent;font-family:var(--font-display);cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.rating-btn:hover:not(:disabled){transform:translateY(-3px)}.rating-btn:active:not(:disabled){transform:translateY(2px)}.rating-btn:disabled{opacity:.55;cursor:not-allowed}.interval-preview{font-size:.75rem;font-weight:700;font-family:var(--font-mono);opacity:.9;margin-bottom:.25rem}.rating-label{font-size:.98rem;font-weight:700}.rating-again{background:var(--danger-bg);border-color:var(--danger-border);box-shadow:0 4px 0 var(--danger-lip);color:var(--danger-color)}.rating-hard{background:var(--learning-bg);border-color:var(--learning-border);box-shadow:0 4px 0 var(--learning-lip);color:var(--learning-color)}.rating-good{background:var(--success-bg);border-color:var(--success-border);box-shadow:0 4px 0 var(--success-lip);color:var(--success-color)}.rating-easy{background:var(--new-bg);border-color:var(--new-border);box-shadow:0 4px 0 var(--new-lip);color:var(--new-color)}.study-session-complete{display:flex;justify-content:center;padding:2rem 0}.complete-card{background:var(--surface-color);border:2px solid var(--border-color);border-top:6px solid var(--success-color);border-radius:var(--radius-xl);padding:3rem 2rem;text-align:center;max-width:500px;width:100%;box-shadow:var(--shadow-md)}.complete-card h2{font-family:var(--font-display);margin-top:0;font-size:1.85rem;font-weight:700}.complete-card p{color:var(--text-secondary);margin-bottom:2rem}.complete-actions{display:flex;flex-direction:column;gap:.75rem}@media(max-width:640px){.app-container{padding:1rem .85rem 2.5rem}.app-header{position:static;padding:.75rem}.header-top-row{justify-content:center}.flashcard-generator,.study-summary-card{padding:1.25rem}.study-summary-top{padding:1.15rem}.btn-primary-study{width:100%;text-align:center}.study-flashcard{padding:2.25rem 1.25rem;min-height:340px}.card-hebrew-text{font-size:2.5rem}.rating-buttons-grid{grid-template-columns:repeat(2,1fr)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
