@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap";:root{--primary: #5B4DB8;--secondary: #7C6FD8;--dark-purple: #4F2978;--gold: #D4A853;--success: #2D9E6B;--warning: #C87941;--error: #C0392B;--info: #2980B9;--text: #1a1a2e;--text-soft: #5a5a7a;--border: rgba(91,77,184,.15);--surface: #ffffff;--shadow-sm: 0 1px 4px rgba(79,41,120,.1);--shadow-md: 0 4px 16px rgba(79,41,120,.13);--shadow-lg: 0 10px 40px rgba(79,41,120,.14);--radius: 12px;--radius-lg: 16px;--header-h: 64px}.container{max-width:1280px;margin:0 auto;padding:0 24px}.portal-loading,.portal-init-error,.portal-signin-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.portal-loading{flex-direction:column;gap:16px}.portal-loading-text{font-family:Playfair Display,serif;font-size:18px;color:var(--dark-purple)}.portal-loading-spinner{display:block;width:40px;height:40px;border:3px solid rgba(91,77,184,.18);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.portal-init-error{flex-direction:column;gap:12px;text-align:center}.portal-init-error h2{font-family:Playfair Display,serif;color:var(--dark-purple)}.portal-init-error p{color:var(--text-soft);max-width:340px}.portal-signin-page{background:transparent}.signin-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:48px 40px;max-width:480px;width:100%;animation:fadeIn .3s ease}.signin-logo{display:flex;align-items:center;gap:10px;margin-bottom:24px}.signin-logo-text{font-family:Playfair Display,serif;font-size:26px;font-weight:700;color:var(--primary)}.signin-headline{font-family:Playfair Display,serif;font-size:22px;font-weight:600;color:var(--dark-purple);margin-bottom:12px}.signin-tagline{color:var(--text-soft);font-size:14px;line-height:1.65;margin-bottom:28px}.signin-features{display:flex;flex-direction:column;gap:14px;margin-bottom:32px}.signin-feature{display:flex;align-items:flex-start;gap:12px}.feature-glyph{width:32px;height:32px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#5b4db81a,#5b4db80d);border-radius:8px;font-size:16px;color:var(--primary)}.signin-feature strong{display:block;font-size:13px;color:var(--text);margin-bottom:2px}.signin-feature p{font-size:12px;color:var(--text-soft);margin:0}.signin-action{display:flex;justify-content:flex-start}.mina-portal{min-height:100vh;display:flex;flex-direction:column}.portal-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:#ffffffeb;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm)}.header-content{display:flex;align-items:center;justify-content:space-between;height:100%}.header-logo{display:flex;align-items:center;gap:10px;text-decoration:none}.header-logo-text{font-family:Playfair Display,serif;font-size:22px;font-weight:700;color:var(--primary)}.header-right{display:flex;align-items:center;gap:16px}.header-user{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-soft);font-weight:500}.portal-main{flex:1;padding:32px 0 48px}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}@media(max-width:860px){.dashboard-grid{grid-template-columns:1fr}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:28px 24px;min-height:200px}.portal-footer{background:#ffffffb3;border-top:1px solid var(--border);padding:16px 0}.footer-content{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-soft);gap:12px;flex-wrap:wrap}.footer-link{color:var(--primary);text-decoration:none;font-weight:500}.footer-link:hover{text-decoration:underline}.toast{position:fixed;top:calc(var(--header-h) + 12px);right:20px;z-index:999;padding:12px 20px;border-radius:var(--radius);font-size:13px;font-weight:500;box-shadow:var(--shadow-md);animation:fadeIn .25s ease;max-width:340px}.toast--success{background:#e6f6ef;color:#1a6641;border:1px solid #a3d9bc}.toast--error{background:#fdf0ef;color:#8c1f1f;border:1px solid #f5b5af}.toast--info{background:#edf3fc;color:#1a4a80;border:1px solid #aac7ee}.section-heading{display:flex;align-items:center;gap:8px;margin-bottom:6px;color:var(--dark-purple)}.section-heading svg{flex-shrink:0}.section-heading h2{font-family:Playfair Display,serif;font-size:18px;font-weight:600;flex:1}.section-hint{font-size:12px;color:var(--text-soft);margin-bottom:20px;line-height:1.5}.auth-widget{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.auth-btn{display:inline-flex;align-items:center;gap:7px;border:none;border-radius:var(--radius);font-size:14px;font-weight:600;padding:9px 18px;transition:background .18s,transform .1s,box-shadow .18s;cursor:pointer}.auth-btn:disabled{opacity:.55;cursor:not-allowed}.auth-btn--signin{background:var(--primary);color:#fff;box-shadow:0 4px 14px #5b4db859}.auth-btn--signin:not(:disabled):hover{background:var(--dark-purple);transform:translateY(-1px);box-shadow:0 6px 20px #5b4db866}.auth-btn--signout{background:transparent;color:var(--text-soft);border:1px solid var(--border);padding:7px 14px;font-size:13px}.auth-btn--signout:not(:disabled):hover{background:#5b4db812;border-color:var(--secondary);color:var(--primary)}.auth-user-badge{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--primary);background:#5b4db812;border-radius:20px;padding:5px 12px 5px 9px}.auth-user-icon{color:var(--primary)}.auth-error{font-size:12px;color:var(--error);margin-top:4px;width:100%}.btn-primary{display:inline-flex;align-items:center;gap:7px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);padding:10px 20px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 4px 14px #5b4db84d;transition:background .18s,transform .1s,box-shadow .18s}.btn-primary:not(:disabled):hover{background:var(--dark-purple);transform:translateY(-1px);box-shadow:0 6px 20px #5b4db861}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{display:inline-flex;align-items:center;gap:5px;background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px 12px;font-size:12px;color:var(--text-soft);cursor:pointer;transition:background .15s,border-color .15s}.btn-ghost:hover{background:#5b4db80f;border-color:var(--secondary);color:var(--primary)}.btn-ghost:disabled{opacity:.5;cursor:not-allowed}.btn-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(91,77,184,.25);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.btn-spinner--light{border-color:#ffffff4d;border-top-color:#fff}.csv-uploader{display:flex;flex-direction:column}.drop-zone{border:2px dashed rgba(91,77,184,.3);border-radius:var(--radius);padding:32px 24px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;background:#5b4db808;-webkit-user-select:none;user-select:none;margin-bottom:16px}.drop-zone:hover:not(.drop-zone--disabled){border-color:var(--secondary);background:#5b4db812}.drop-zone--active{border-color:var(--primary);background:#5b4db817;transform:scale(1.01)}.drop-zone--disabled{opacity:.5;cursor:not-allowed}.drop-icon{margin:0 auto 12px;color:var(--secondary)}.drop-label{font-weight:600;font-size:15px;color:var(--dark-purple);margin-bottom:4px}.drop-sub{font-size:13px;color:var(--text-soft)}.drop-browse{color:var(--primary);text-decoration:underline;font-weight:500}.uploader-message{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:500;margin-bottom:12px;animation:fadeIn .2s ease}.uploader-message--error{background:#fdf0ef;color:#8c1f1f;border:1px solid #f5b5af}.uploader-message--success{background:#e6f6ef;color:#1a6641;border:1px solid #a3d9bc}.uploader-message--success svg{flex-shrink:0}.msg-dismiss{background:none;border:none;color:inherit;opacity:.6;font-size:14px;cursor:pointer;flex-shrink:0;padding:0 2px}.msg-dismiss:hover{opacity:1}.preview-panel{display:flex;flex-direction:column;gap:14px}.preview-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.preview-title{font-family:Playfair Display,serif;font-size:15px;font-weight:600;color:var(--dark-purple)}.preview-meta{font-size:12px;color:var(--text-soft);margin-top:2px}.deck-summary{display:flex;flex-wrap:wrap;gap:6px}.deck-badge{display:inline-flex;align-items:center;gap:5px;background:#5b4db812;border:1px solid rgba(91,77,184,.15);border-radius:20px;padding:3px 10px 3px 8px;font-size:12px;color:var(--dark-purple)}.deck-badge-count{background:var(--primary);color:#fff;border-radius:10px;padding:1px 6px;font-size:11px;font-weight:600}.preview-table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius)}.preview-more{font-size:12px;color:var(--text-soft);text-align:center;padding:8px;border-top:1px solid var(--border)}.upload-progress{display:flex;flex-direction:column;gap:6px}.progress-label{font-size:13px;color:var(--text-soft)}.progress-bar{height:6px;background:#5b4db81f;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:3px;transition:width .3s ease}.preview-actions{display:flex;justify-content:flex-end}.flashcard-list{display:flex;flex-direction:column;gap:16px}.card-total-badge{background:#5b4db81a;color:var(--primary);border-radius:12px;padding:1px 8px;font-size:12px;font-weight:600}.btn-refresh{margin-left:auto}.search-bar{display:flex;align-items:center;gap:8px;background:#5b4db80a;border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px;transition:border-color .2s,box-shadow .2s}.search-bar:focus-within{border-color:var(--secondary);box-shadow:0 0 0 3px #5b4db81a}.search-icon{color:var(--text-soft);flex-shrink:0}.search-input{border:none;background:transparent;outline:none;font-size:14px;color:var(--text);flex:1;min-width:0}.search-input::placeholder{color:var(--text-soft)}.search-clear{background:none;border:none;font-size:13px;color:var(--text-soft);cursor:pointer;padding:0 2px}.search-clear:hover{color:var(--primary)}.list-message{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-radius:8px;font-size:13px;animation:fadeIn .2s ease}.list-message--error{background:#fdf0ef;color:#8c1f1f;border:1px solid #f5b5af}.empty-state{display:flex;flex-direction:column;align-items:center;padding:48px 24px;text-align:center}.empty-icon{font-size:32px;margin-bottom:12px;color:var(--secondary)}.empty-title{font-family:Playfair Display,serif;font-size:16px;font-weight:600;color:var(--dark-purple);margin-bottom:4px}.empty-hint{font-size:13px;color:var(--text-soft)}.deck-section{display:flex;flex-direction:column;gap:0}.deck-section+.deck-section{margin-top:18px}.deck-section-header{display:flex;align-items:center;gap:10px;padding:0 4px 8px;border-bottom:1px solid var(--border);margin-bottom:0}.deck-name{font-family:Playfair Display,serif;font-size:15px;font-weight:600;color:var(--dark-purple);flex:1}.deck-count{font-size:12px;color:var(--text-soft);font-weight:500}.cards-table{width:100%;border-collapse:collapse;font-size:13px}.cards-table th{text-align:left;padding:8px 10px 6px;color:var(--text-soft);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border)}.cards-table td{padding:9px 10px;vertical-align:middle;border-bottom:1px solid rgba(91,77,184,.06);color:var(--text)}.cards-table tr:last-child td{border-bottom:none}.cards-table tbody tr:hover{background:#5b4db808}.cards-table tr.row--deleting td{opacity:.4}.cell-word{font-weight:500;color:var(--dark-purple)}.cell-meaning{color:var(--text-soft)}.cell-num{color:var(--text-soft);font-size:11px;width:28px}.cell-actions{width:100px}.cell-empty{color:var(--border)}.subtopic-tag{display:inline-block;background:#d4a8531f;color:#8a6820;border:1px solid rgba(212,168,83,.25);border-radius:6px;padding:1px 7px;font-size:11px;font-weight:500}.btn-delete{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--text-soft);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.btn-delete:hover{background:#fdf0ef;color:var(--error);border-color:#f5b5af}.confirm-delete{display:inline-flex;align-items:center;gap:5px}.btn-confirm-yes{background:var(--error);color:#fff;border:none;border-radius:6px;padding:3px 9px;font-size:12px;font-weight:600;cursor:pointer;transition:background .15s}.btn-confirm-yes:hover{background:#9b2620}.btn-confirm-no{background:none;border:1px solid var(--border);border-radius:6px;padding:3px 9px;font-size:12px;color:var(--text-soft);cursor:pointer}.btn-confirm-no:hover{background:#5b4db80f}.skeleton{background:linear-gradient(90deg,#5b4db812 25%,#5b4db81f,#5b4db812 75%);background-size:200% 100%;border-radius:4px;animation:pulse 1.4s ease-in-out infinite;height:14px}.skeleton-xs{width:50px}.skeleton-sm{width:80px}.skeleton-md{width:130px}.skeleton-icon{width:24px;height:24px;border-radius:6px}.preview-table{width:100%;border-collapse:collapse;font-size:12px}.preview-table th{background:#5b4db80a;text-align:left;padding:7px 10px;font-size:11px;color:var(--text-soft);font-weight:600;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border)}.preview-table td{padding:7px 10px;border-bottom:1px solid rgba(91,77,184,.06);color:var(--text);max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview-table tr:last-child td{border-bottom:none}.preview-num{color:var(--text-soft);font-size:11px}@media(max-width:600px){.signin-card{padding:32px 20px}.panel{padding:20px 16px}.portal-main{padding:20px 0 32px}.header-user{display:none}.footer-content{flex-direction:column;align-items:flex-start;gap:4px}.drop-zone{padding:24px 16px}.cards-table th:nth-child(3),.cards-table td:nth-child(3){display:none}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.6;color:#1a1a2e;background:linear-gradient(145deg,#f7f4ff,#faf8fe,#f0ebff);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;cursor:pointer}a{color:inherit}code{font-family:Monaco,Menlo,Courier New,monospace;font-size:.85em}img,svg{display:block}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#5b4db80f;border-radius:8px}::-webkit-scrollbar-thumb{background:#5b4db859;border-radius:8px}::-webkit-scrollbar-thumb:hover{background:#5b4db88c}::selection{background:#5b4db838;color:#1a1a2e}::-moz-selection{background:#5b4db838;color:#1a1a2e}*:focus-visible{outline:2px solid rgba(91,77,184,.6);outline-offset:2px;border-radius:4px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}