:root{--zebo-bg:#f6f7fb;--zebo-surface:#fff;--zebo-border:#e4e7ee;--zebo-text:#1a1f2b;--zebo-text-muted:#5b6472;--zebo-brand:#1f3a8a;--zebo-brand-soft:#eef2ff;--zebo-radius:16px;--zebo-radius-sm:10px;--zebo-radius-pill:999px;--zebo-shadow:0 1px 2px #1018280a, 0 8px 24px #1018280f;--zebo-shadow-hover:0 2px 4px #1018280f, 0 16px 40px #1018281f;--zebo-shadow-menu:0 4px 16px #0000001f;--zebo-space-1:4px;--zebo-space-2:8px;--zebo-space-3:12px;--zebo-space-4:16px;--zebo-space-5:24px;--zebo-font:system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--zebo-font-size:14px;--zebo-font-weight-bold:700;--zebo-focus-ring:0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent);--zebo-focus-outline:2px solid color-mix(in srgb, var(--accent) 55%, white);--zebo-role-master:#6d28d9;--zebo-role-master-bg:#f5f3ff;--zebo-role-master-border:#c4b5fd;--zebo-role-teacher:#1d4ed8;--zebo-role-teacher-bg:#eff6ff;--zebo-role-teacher-border:#93c5fd;--zebo-role-student:#047857;--zebo-role-student-bg:#ecfdf5;--zebo-role-student-border:#6ee7b7;--accent:#2563eb}.zebo-shell-header{z-index:40;justify-content:space-between;align-items:center;gap:var(--zebo-space-3);width:100%;min-height:56px;padding:var(--zebo-space-3) var(--zebo-space-5);background:color-mix(in srgb, var(--zebo-surface) 96%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:0;border-left:0;border-right:0;border-bottom:1px solid var(--zebo-border);font-family:var(--zebo-font);box-sizing:border-box;border-radius:0;flex-wrap:wrap;margin:0;display:flex;position:sticky;top:0}.zebo-shell-header__left,.zebo-shell-header__right{align-items:center;gap:var(--zebo-space-3);flex-wrap:wrap;min-width:0;display:inline-flex}.zebo-shell-header__nav{align-items:center;gap:var(--zebo-space-2);flex-wrap:wrap;flex:auto;justify-content:center;display:inline-flex}.zebo-tool-pill{border:1px solid var(--zebo-border);background:var(--zebo-surface);border-radius:var(--zebo-radius-pill);box-shadow:var(--zebo-shadow);color:var(--zebo-text);font-weight:700;font-size:var(--zebo-font-size);white-space:nowrap;align-items:center;gap:10px;padding:6px 14px 6px 8px;line-height:1.2;text-decoration:none;display:inline-flex}.zebo-tool-pill__icon{object-fit:contain;background:color-mix(in srgb, var(--accent) 12%, white);border-radius:8px;flex-shrink:0;width:28px;height:28px;display:block}.zebo-tool-pill__name{letter-spacing:-.01em;color:var(--zebo-text);font-weight:800}.zebo-tool-pill__name .accent{color:var(--accent)}.zebo-hub-link{color:var(--zebo-brand);white-space:nowrap;align-items:center;gap:4px;padding:4px 2px;font-size:13px;font-weight:700;text-decoration:none;display:inline-flex}.zebo-hub-link:hover{color:var(--accent);text-decoration:underline}.zebo-user-name{cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:0 0;border:none;max-width:200px;padding:4px 0;font-family:inherit;font-size:14px;font-weight:700;overflow:hidden}.zebo-user-name--master{color:var(--zebo-role-master)}.zebo-user-name--teacher{color:var(--zebo-role-teacher)}.zebo-user-name--student{color:var(--zebo-role-student)}.zebo-role-pill{border-radius:var(--zebo-radius-pill);letter-spacing:.02em;white-space:nowrap;border:1px solid #0000;align-items:center;gap:5px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.zebo-role-pill:before{content:"";background:currentColor;border-radius:999px;width:7px;height:7px}.zebo-role-pill--master{background:var(--zebo-role-master-bg);border-color:var(--zebo-role-master-border);color:var(--zebo-role-master)}.zebo-role-pill--teacher{background:var(--zebo-role-teacher-bg);border-color:var(--zebo-role-teacher-border);color:var(--zebo-role-teacher)}.zebo-role-pill--student{background:var(--zebo-role-student-bg);border-color:var(--zebo-role-student-border);color:var(--zebo-role-student)}.zebo-user-menu{align-items:center;display:inline-flex;position:relative}.zebo-user-menu__trigger{cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:0 0;border:none;align-items:center;gap:2px;max-width:220px;padding:4px 0;font-family:inherit;font-size:14px;font-weight:700;display:inline-flex;overflow:hidden}.zebo-user-menu__trigger:focus-visible{box-shadow:var(--zebo-focus-ring);border-radius:4px;outline:none}.zebo-user-menu__trigger--master{color:var(--zebo-role-master)}.zebo-user-menu__trigger--teacher{color:var(--zebo-role-teacher)}.zebo-user-menu__trigger--student{color:var(--zebo-role-student)}.zebo-user-menu__panel{background:var(--zebo-surface);border:1px solid var(--zebo-border);border-radius:var(--zebo-radius-sm);box-shadow:var(--zebo-shadow-menu);z-index:60;min-width:220px;color:var(--zebo-text);padding:8px 0;font-size:13px;position:absolute;top:calc(100% + 6px);right:0}.zebo-user-menu__copy{color:var(--zebo-text-muted);padding:6px 14px;line-height:1.4}.zebo-user-menu__separator{border:none;border-top:1px solid var(--zebo-border);margin:4px 0}.zebo-user-menu__item{text-align:left;cursor:pointer;width:100%;font:inherit;color:var(--zebo-text);background:0 0;border:none;padding:8px 14px;font-size:13px;display:block}.zebo-user-menu__item:hover{background:#f8fafc}.zebo-user-menu__item:focus-visible{background:color-mix(in srgb, var(--accent) 10%, white);outline:none}.zebo-tabs{align-items:center;gap:var(--zebo-space-2);flex-wrap:wrap;display:inline-flex}.zebo-tab{appearance:none;border-radius:var(--zebo-radius-pill);color:var(--zebo-text-muted);font:inherit;cursor:pointer;white-space:nowrap;background:0 0;border:1px solid #0000;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:700;line-height:1.2;text-decoration:none;transition:background .12s,color .12s,border-color .12s;display:inline-flex}.zebo-tab:hover{background:color-mix(in srgb, var(--accent) 10%, white);color:var(--zebo-text);text-decoration:none}.zebo-tab:focus-visible{box-shadow:var(--zebo-focus-ring);outline:none}.zebo-tab.is-active,.zebo-tab[aria-current=page],.zebo-tab[data-active=true]{background:color-mix(in srgb, var(--accent) 16%, 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black)}.zebo-btn--primary:hover:not(:disabled){filter:brightness(.96);box-shadow:var(--zebo-shadow-hover)}.zebo-btn--secondary{background:var(--zebo-surface);color:var(--zebo-text);border-color:var(--zebo-border)}.zebo-btn--secondary:hover:not(:disabled){background:#f8fafc}.zebo-btn--ghost{color:var(--zebo-text-muted);box-shadow:none;background:0 0;border-color:#0000}.zebo-btn--ghost:hover:not(:disabled){background:color-mix(in srgb, var(--accent) 8%, white);color:var(--zebo-text)}.zebo-btn--sm{border-radius:8px;padding:6px 10px;font-size:13px}.zebo-input,.zebo-select,.zebo-textarea{appearance:none;width:100%;font:inherit;font-size:var(--zebo-font-size);border:1px solid var(--zebo-border);border-radius:var(--zebo-radius-sm);background:var(--zebo-surface);color:var(--zebo-text);box-shadow:none;padding:10px 12px;transition:border-color .12s,box-shadow .12s}.zebo-input:focus,.zebo-select:focus,.zebo-textarea:focus,.zebo-input:focus-visible,.zebo-select:focus-visible,.zebo-textarea:focus-visible{border-color:var(--accent);box-shadow:var(--zebo-focus-ring);outline:none}.zebo-textarea{resize:vertical;min-height:120px}.zebo-shell-header--dark{color:#eef3f0;background:#0e1a21;border-bottom-color:#ffffff1f}.zebo-shell-header--dark .zebo-tool-pill{color:#eef3f0;box-shadow:none;background:#ffffff14;border-color:#ffffff24}.zebo-shell-header--dark .zebo-tool-pill__name{color:#eef3f0}.zebo-shell-header--dark .zebo-hub-link{color:color-mix(in srgb, var(--accent) 80%, white)}.zebo-shell-header--dark .zebo-hub-link:hover{color:var(--accent)}.zebo-shell-header--dark .zebo-user-name--master,.zebo-shell-header--dark .zebo-user-menu__trigger--master{color:#c4b5fd}.zebo-shell-header--dark .zebo-user-name--teacher,.zebo-shell-header--dark .zebo-user-menu__trigger--teacher{color:#93c5fd}.zebo-shell-header--dark .zebo-user-name--student,.zebo-shell-header--dark .zebo-user-menu__trigger--student{color:#6ee7b7}.zebo-shell-header--dark .zebo-tab{color:#ffffffb8}.zebo-shell-header--dark .zebo-tab:hover{color:#fff;background:#ffffff1a}.zebo-shell-header--dark .zebo-tab.is-active,.zebo-shell-header--dark .zebo-tab[aria-current=page],.zebo-shell-header--dark .zebo-tab[data-active=true]{background:var(--accent);color:var(--accent-ink,#0f1c24);border-color:#0000}.zebo-shell-header--dark .zebo-user-menu__panel{color:#eef3f0;background:#13232c;border-color:#ffffff24}.zebo-shell-header--dark .zebo-user-menu__copy{color:#ffffffa6}.zebo-shell-header--dark .zebo-user-menu__item{color:#eef3f0}.zebo-shell-header--dark .zebo-user-menu__item:hover{background:#ffffff14}.zebo-shell-header--dark .zebo-user-menu__separator{border-top-color:#ffffff1f}@media (width<=720px){.zebo-shell-header{padding:var(--zebo-space-2) var(--zebo-space-3)}.zebo-shell-header__nav{flex-basis:100%;order:3;justify-content:flex-start}}:root{--text:#4b5563;--text-h:#1a1f2b;--bg:#f6f7fb;--surface:#fff;--border:#e4e7ee;--code-bg:#f1f5f9;--accent:#0d9488;--accent-hover:#0f766e;--accent-bg:#0d94881f;--danger:#dc2626;--warn-bg:#fef3c7;--warn-text:#92400e;--error-bg:#fee2e2;--error-text:#991b1b;--shadow:0 1px 2px #1018280a, 0 8px 24px #1018280f;--radius:16px;--radius-sm:10px;--radius-pill:999px;--sans:"Segoe UI", system-ui, sans-serif;--mono:ui-monospace, Consolas, monospace;font:16px/1.5 var(--sans);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{min-height:100vh;margin:0}#root{min-height:100vh}h1,h2,h3{color:var(--text-h);margin:0 0 .5rem;font-weight:600}h1{font-size:2rem}h2{font-size:1.25rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--mono);background:var(--code-bg);border-radius:4px;padding:.15em .4em;font-size:.9em}.muted{color:#6b7280}.hint{color:#6b7280;margin-top:.75rem;font-size:.875rem}.layout{flex-direction:column;min-height:100vh;display:flex}.main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:2rem 1.5rem}.main-full{flex:1}.page-center{text-align:center;place-items:center;min-height:60vh;display:grid}.topbar{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:1rem 1.5rem;display:flex}.brand{color:inherit;text-decoration:none}.brand-badge{border:1px solid var(--border);background:#ffffffeb;border-radius:999px;align-items:center;gap:.75rem;padding:.45rem .85rem .45rem .5rem;display:inline-flex;box-shadow:0 10px 24px #0f172a14}.brand-icon-shell{background:var(--accent-bg);border-radius:.8rem;flex-shrink:0;justify-content:center;align-items:center;width:2.1rem;height:2.1rem;display:inline-flex}.brand-icon-image{width:1.35rem;height:1.35rem;display:block}.brand-copy{flex-direction:column;min-width:0;line-height:1.05;display:flex}.brand-kicker{text-transform:uppercase;letter-spacing:.12em;color:#6b7280;font-size:.68rem;font-weight:800}.brand-label{color:var(--accent);font-size:1.02rem;font-weight:800}.topbar-actions{align-items:center;gap:1rem;display:flex}.user-badge{color:#6b7280;align-items:center;gap:.5rem;font-size:.875rem;display:inline-flex}.role-pill{letter-spacing:.02em;white-space:nowrap;border:1px solid #0000;border-radius:999px;align-items:center;gap:.3rem;padding:.1rem .55rem;font-size:.72rem;font-weight:700;display:inline-flex}.role-pill-dot{background:currentColor;border-radius:999px;width:6px;height:6px}.role-pill--master{color:#6d28d9;background:#f5f3ff;border-color:#c4b5fd}.role-pill--teacher{color:#1d4ed8;background:#eff6ff;border-color:#93c5fd}.role-pill--student{color:#047857;background:#ecfdf5;border-color:#6ee7b7}.btn{border-radius:var(--radius-sm);font:inherit;cursor:pointer;box-shadow:var(--shadow);border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.6rem 1rem;text-decoration:none;transition:background .15s,border-color .15s,box-shadow .15s;display:inline-flex}.btn:focus-visible{box-shadow:var(--shadow), var(--zebo-focus-ring,0 0 0 3px #0d948847);outline:none}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text-h)}.btn-secondary:hover:not(:disabled){background:var(--code-bg)}.btn-ghost{color:var(--text);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--code-bg)}.btn-danger{color:var(--danger)}.alert{border-radius:var(--radius);margin-bottom:1rem;padding:.875rem 1rem}.alert-error{background:var(--error-bg);color:var(--error-text)}.alert-warn{background:var(--warn-bg);color:var(--warn-text)}.page-header{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.5rem;display:flex}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1.25rem;padding:1.5rem}label{color:var(--text-h);flex-direction:column;gap:.35rem;margin-bottom:1rem;font-size:.875rem;font-weight:500;display:flex}input,select,textarea{font:inherit;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text-h);padding:.65rem .75rem}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:var(--zebo-focus-ring,0 0 0 3px #0d948847);outline:none}textarea{resize:vertical;min-height:120px}.film-prompt-panel{flex-direction:column;gap:.85rem;display:flex}.film-prompt-panel textarea.film-prompt-input{box-sizing:border-box;width:100%;min-height:16rem;display:block}.film-prompt-head{align-items:center;gap:.5rem;display:flex}.film-prompt-head h2{margin:0}.film-info-btn{color:#0f766e;cursor:pointer;background:#fff;border:2px solid #0f766e;border-radius:999px;width:1.6rem;height:1.6rem;padding:0;font-size:.9rem;font-weight:800;line-height:1}.film-info-btn:hover,.film-info-btn[aria-expanded=true]{color:#fff;background:#0f766e}.film-prompt-info{margin:0}.film-title-input{min-height:unset;box-sizing:border-box;width:100%;font-size:1.05rem;font-weight:600}.film-project-shell{margin-bottom:1rem}.film-project-bar{flex-wrap:wrap;align-items:flex-end;gap:.65rem .85rem;margin-bottom:.75rem;display:flex}.film-project-title{flex:14rem;margin-bottom:0}.film-project-title-label{font-size:.8rem;font-weight:600}.film-save-status{color:#0f766e;white-space:nowrap;font-size:.85rem;font-weight:700}.film-save-status.is-saving{color:#64748b;font-weight:500}.film-save-status.is-error{color:var(--danger,#b91c1c)}.editor-page-title{margin-bottom:.35rem}.editor-page-title .film-title-input{font-size:1.35rem}.library-card-title-link{color:inherit;text-decoration:none}.library-card-title-link:hover{text-decoration:underline}.film-draft-modes{border:none;gap:.5rem;margin:0;padding:0;display:grid}.film-draft-modes legend{color:var(--text-h);margin-bottom:.35rem;font-weight:700}.film-draft-mode{cursor:pointer;background:#fff;border:2px solid #99f6e4;border-radius:10px;flex-direction:row;align-items:flex-start;gap:.55rem;margin:0;padding:.65rem .75rem;display:flex}.film-draft-mode.is-on{border-color:#0f766e}.film-draft-mode span{flex-direction:column;gap:.1rem;display:flex}.film-questions{gap:.65rem;display:grid}.settings-lang-only{max-width:22rem}.login-lang-row{justify-content:flex-end;margin-bottom:.75rem;display:flex}.lang-switcher{color:#6b7280;align-items:center;gap:.4rem;font-size:.8125rem;display:inline-flex}.lang-switcher select{border:1px solid var(--border);background:var(--surface);min-height:36px;color:var(--text-h);border-radius:8px;padding:.25rem .5rem}.lang-switcher--topbar{color:#6b7280}.lang-switcher--slideshow{color:#94a3b8}.lang-switcher--slideshow select{color:#e2e8f0;background:#1e293b;border-color:#475569;min-height:32px}html[dir=rtl] .topbar,html[dir=rtl] .slideshow-topbar{direction:rtl}.login-page{background:linear-gradient(135deg,#ecfdf5 0%,#f8fafc 50%,#f0fdfa 100%);place-items:center;min-height:100vh;padding:2rem 1rem;display:grid}.login-card{background:var(--surface);width:100%;max-width:440px;box-shadow:var(--shadow);border:1px solid var(--border);border-radius:16px;padding:2rem}.login-subtitle{color:#6b7280;margin-bottom:1.5rem}.login-section h2{margin-bottom:.75rem;font-size:1rem}.student-form{margin-top:.5rem}.divider{color:#9ca3af;align-items:center;gap:1rem;margin:1.5rem 0;font-size:.875rem;display:flex}.divider:before,.divider:after{content:"";background:var(--border);flex:1;height:1px}.header-actions{flex-wrap:wrap;gap:.5rem;display:flex}.breadcrumb{flex-wrap:wrap;align-items:center;gap:.25rem;margin-bottom:1.25rem;font-size:.9rem;display:flex}.breadcrumb-link{font:inherit;color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}.breadcrumb-sep{color:#9ca3af;margin:0 .15rem}.library-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;display:grid}.library-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}.folder-card{flex-direction:column;gap:.75rem;display:flex}.folder-open{font:inherit;text-align:left;cursor:pointer;color:inherit;background:0 0;border:none;align-items:center;gap:.75rem;padding:0;display:flex}.folder-open 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