@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-outline-style:solid}}}@layer theme{:root,:host{--font-sans:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--spacing:.25rem;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--shadow-sm:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.start{inset-inline-start:var(--spacing)}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.transform{transform:var(--tw-rotate-x,)var(--tw-rotate-y,)var(--tw-rotate-z,)var(--tw-skew-x,)var(--tw-skew-y,)}.border{border-style:var(--tw-border-style);border-width:1px}.capitalize{text-transform:capitalize}.uppercase{text-transform:uppercase}.italic{font-style:italic}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--primary-50:#eff6ff;--primary-100:#dbeafe;--primary-200:#bfdbfe;--primary-300:#93c5fd;--primary-400:#60a5fa;--primary-500:#3b82f6;--primary-600:#2563eb;--primary-700:#1d4ed8;--primary-800:#1e40af;--primary-900:#1e3a8a;--accent-50:#fff7ed;--accent-100:#ffedd5;--accent-200:#fed7aa;--accent-300:#fdba74;--accent-400:#fb923c;--accent-500:#f97316;--accent-600:#ea580c;--accent-700:#c2410c;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--info:#06b6d4;--bg:#f8faff;--bg-card:#fff;--bg-sidebar:#0f172a;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--border-focus:#2563eb;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #00000012,0 2px 4px -2px #00000012;--shadow-lg:0 10px 15px -3px #00000014,0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #00000014,0 8px 10px -6px #0000000d;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--sidebar-width:260px;--topbar-height:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{background:var(--bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);z-index:100;flex-direction:column;height:100vh;transition:transform .3s;display:flex;position:fixed;top:0;left:0;overflow:hidden}.main-area{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-height:100vh;display:flex}.topbar{height:var(--topbar-height);background:var(--bg-card);border-bottom:1px solid var(--border);z-index:50;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 24px;display:flex;position:sticky;top:0}.page-content{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:28px 32px}.sidebar-logo{border-bottom:1px solid #ffffff14;align-items:center;gap:12px;padding:20px 20px 16px;display:flex}.sidebar-logo-icon{border-radius:var(--radius-md);background:linear-gradient(135deg,var(--primary-500),var(--primary-700));color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:16px;font-weight:800;display:flex;box-shadow:0 0 0 3px #3b82f64d}.sidebar-logo-text{flex-direction:column;display:flex}.sidebar-logo-name{color:#fff;letter-spacing:-.3px;font-size:14px;font-weight:700}.sidebar-logo-sub{color:#ffffff73;text-transform:uppercase;letter-spacing:1px;font-size:10px}.sidebar-nav{flex:1;padding:12px;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{width:6px}.sidebar-nav::-webkit-scrollbar-track{background:0 0}.sidebar-nav::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:99px}.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.nav-section-label{text-transform:uppercase;letter-spacing:1.2px;color:#ffffff4d;padding:16px 8px 6px;font-size:9px;font-weight:600}.nav-item{border-radius:var(--radius-md);color:#ffffffa6;cursor:pointer;align-items:center;gap:10px;margin-bottom:2px;padding:10px 12px;font-size:13.5px;font-weight:500;text-decoration:none;transition:all .18s;display:flex}.nav-item:hover{color:#fff;background:#ffffff12}.nav-item.active{background:linear-gradient(135deg,var(--primary-600),var(--primary-700));color:#fff;box-shadow:0 4px 12px #2563eb66}.nav-item-icon{flex-shrink:0;width:18px;height:18px}.sidebar-footer{border-top:1px solid #ffffff14;padding:16px}.role-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:99px;align-items:center;gap:5px;padding:4px 10px;font-size:11px;font-weight:600;display:inline-flex}.role-teacher{color:#10b981;background:#10b9811f}.role-admin{color:#f97316;background:#f973161f}.role-supervisor{color:#3b82f6;background:#3b82f61f}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:24px;transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:var(--shadow-lg)}.card-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.card-title{color:var(--text-primary);font-size:16px;font-weight:700}.card-sub{color:var(--text-secondary);margin-top:2px;font-size:13px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:flex-start;gap:16px;padding:20px 24px;transition:all .2s;display:flex;position:relative;overflow:hidden}.stat-card:before{content:"";background:linear-gradient(90deg,var(--primary-500),var(--accent-500));height:3px;position:absolute;top:0;left:0;right:0}.stat-card:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.stat-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex}.stat-icon.blue{color:var(--primary-600);background:#3b82f61a}.stat-icon.orange{color:var(--accent-600);background:#f973161a}.stat-icon.green{color:var(--success);background:#10b9811a}.stat-icon.purple{color:#7c3aed;background:#8b5cf61a}.stat-value{color:var(--text-primary);font-size:28px;font-weight:800;line-height:1}.stat-label{color:var(--text-secondary);margin-top:4px;font-size:13px}.stat-change{margin-top:6px;font-size:11px;font-weight:600}.stat-change.up{color:var(--success)}.stat-change.down{color:var(--error)}.btn{border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;border:none;outline:none;align-items:center;gap:8px;padding:10px 18px;font-size:13.5px;font-weight:600;text-decoration:none;transition:all .18s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--primary-600),var(--primary-700));color:#fff;box-shadow:0 2px 8px #2563eb59}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-500),var(--primary-600));transform:translateY(-1px);box-shadow:0 4px 14px #2563eb73}.btn-accent{background:linear-gradient(135deg,var(--accent-500),var(--accent-600));color:#fff;box-shadow:0 2px 8px #f9731659}.btn-accent:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}.btn-outline{color:var(--primary-600);border:1.5px solid var(--primary-300);background:0 0}.btn-outline:hover:not(:disabled){background:var(--primary-50);border-color:var(--primary-500)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--border);color:var(--text-primary)}.btn-danger{color:var(--error);background:#ef44441a;border:1px solid #ef444433}.btn-danger:hover:not(:disabled){background:var(--error);color:#fff}.btn-sm{padding:6px 12px;font-size:12px}.btn-lg{padding:13px 24px;font-size:15px}.btn-icon{border-radius:var(--radius-md);padding:8px}.form-group{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.form-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:12.5px;font-weight:600}.form-input,.form-select,.form-textarea{border:1.5px solid var(--border);border-radius:var(--radius-md);width:100%;color:var(--text-primary);background:var(--bg-card);outline:none;padding:10px 14px;font-family:inherit;font-size:14px;transition:border-color .18s,box-shadow .18s}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #2563eb1f}.form-input::placeholder{color:var(--text-muted)}.form-textarea{resize:vertical;min-height:90px}.form-error{color:var(--error);font-size:12px}.form-hint{color:var(--text-muted);font-size:12px}.data-table{border-collapse:collapse;width:100%;font-size:13.5px}.data-table th{text-align:left;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);background:var(--bg);border-bottom:1px solid var(--border);white-space:nowrap;padding:10px 16px;font-size:11px;font-weight:700}.data-table td{border-bottom:1px solid var(--border);color:var(--text-primary);vertical-align:middle;padding:13px 16px}.data-table tbody tr{transition:background .15s}.data-table tbody tr:hover{background:var(--primary-50)}.data-table tbody tr:last-child td{border-bottom:none}.badge{border-radius:99px;align-items:center;padding:3px 10px;font-size:11px;font-weight:600;display:inline-flex}.badge-blue{color:var(--primary-700);background:#3b82f61a}.badge-orange{color:var(--accent-700);background:#f973161a}.badge-green{color:#059669;background:#10b9811a}.badge-red{color:#dc2626;background:#ef44441a}.badge-gray{color:#475569;background:#64748b1a}.badge-purple{color:#6d28d9;background:#8b5cf61a}.grade-chip{border-radius:var(--radius-sm);justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:800;display:inline-flex}.grade-1{color:#059669;background:#10b98126}.grade-2{color:#10b981;background:#34d39926}.grade-3{color:#2563eb;background:#3b82f626}.grade-4{color:#4f46e5;background:#6366f126}.grade-5{color:#ea580c;background:#f9731626}.grade-6{color:#dc2626;background:#ef444426}.grade-7{color:#991b1b;background:#7f1d1d26}.grade-9{color:#475569;background:#64748b1a}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;background:#0f172a80;justify-content:center;align-items:center;padding:24px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal{background:var(--bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);width:100%;max-width:560px;max-height:90vh;animation:.25s slideUp;overflow-y:auto}.modal-header{justify-content:space-between;align-items:flex-start;gap:16px;padding:24px 28px 0;display:flex}.modal-title{font-size:18px;font-weight:700}.modal-body{padding:20px 28px}.modal-footer{justify-content:flex-end;gap:10px;padding:0 28px 24px;display:flex}.toast-container{z-index:999;flex-direction:column;gap:10px;display:flex;position:fixed;bottom:24px;right:24px}.toast{background:var(--bg-sidebar);color:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-xl);align-items:center;gap:10px;max-width:360px;padding:14px 18px;font-size:13.5px;animation:.3s slideInRight;display:flex}.toast.success{border-left:4px solid var(--success)}.toast.error{border-left:4px solid var(--error)}.toast.info{border-left:4px solid var(--info)}.progress-bar{background:var(--border);border-radius:99px;height:6px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,var(--primary-500),var(--accent-500));border-radius:99px;height:100%;transition:width .4s}.tabs{border-bottom:2px solid var(--border);gap:4px;margin-bottom:24px;display:flex}.tab-item{color:var(--text-secondary);cursor:pointer;border-bottom:2px solid #0000;align-items:center;gap:7px;margin-bottom:-2px;padding:10px 18px;font-size:13.5px;font-weight:600;transition:all .18s;display:flex}.tab-item:hover{color:var(--primary-600)}.tab-item.active{color:var(--primary-600);border-bottom-color:var(--primary-600)}.breadcrumb{color:var(--text-muted);align-items:center;gap:6px;font-size:13px;display:flex}.breadcrumb a{color:var(--primary-600);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.auth-page{background:linear-gradient(135deg,var(--primary-900)0%,var(--primary-700)50%,#1e293b 100%);min-height:100vh;display:flex}.auth-left{color:#fff;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:48px;display:flex}.auth-right{background:var(--bg-card);flex-direction:column;justify-content:center;align-items:center;width:480px;min-height:100vh;padding:48px 40px;display:flex}.empty-state{text-align:center;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;padding:60px 24px;display:flex}.empty-icon{opacity:.35;width:64px;height:64px;margin-bottom:16px}.empty-title{color:var(--text-secondary);margin-bottom:6px;font-size:15px;font-weight:600}.empty-desc{font-size:13px}.avatar{object-fit:cover;background:linear-gradient(135deg,var(--primary-400),var(--primary-600));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.avatar-sm{width:32px;height:32px;font-size:12px}.avatar-md{width:40px;height:40px;font-size:14px}.avatar-lg{width:56px;height:56px;font-size:20px}.avatar-xl{width:80px;height:80px;font-size:28px}.divider{background:var(--border);height:1px;margin:20px 0}.grid-2{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-area{margin-left:0}.auth-left{display:none}.auth-right{width:100%}.page-content{padding:16px}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:none}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{50%{opacity:.5}}.animate-spin{animation:1s linear infinite spin}.animate-pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}.spinner{border:2.5px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin}.spinner-dark{border:2.5px solid var(--border);border-top-color:var(--primary-600);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.sr-only{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}.text-gradient{background:linear-gradient(135deg,var(--primary-500),var(--accent-500));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.glass{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff14;border:1px solid #ffffff1f}.online-dot{background:var(--success);border-radius:50%;width:8px;height:8px;display:inline-block}.offline-dot{background:var(--error);border-radius:50%;width:8px;height:8px;display:inline-block}.sidebar-logout-btn{color:#ffffffb3;cursor:pointer;background:0 0;border:1px solid #ffffff1a;border-radius:8px;justify-content:center;align-items:center;gap:6px;width:100%;padding:8px;font-size:13px;font-weight:600;transition:all .2s;display:flex}.sidebar-logout-btn:hover{color:#fff!important;background:#ef4444!important;border-color:#ef4444!important}@media print{@page{margin:0;size:A4 portrait}body,html,.app-shell,.main-area,.page-content{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#fff!important;width:100%!important;height:auto!important;min-height:auto!important;margin:0!important;padding:0!important;display:block!important}.sidebar,.topbar,.btn,button,.tabs,.form-group,.no-print{display:none!important}.card{box-shadow:none!important;border:none!important}.report-page{box-sizing:border-box;position:relative;page-break-after:always!important;page-break-before:avoid!important;break-inside:avoid!important;break-after:page!important;height:auto!important;min-height:290mm!important;box-shadow:none!important;border:none!important;border-radius:0!important;margin:0!important;padding:12mm 15mm!important;font-family:Arial,Helvetica Neue,Helvetica,sans-serif!important}.report-page:last-child{page-break-after:auto!important;break-after:auto!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}
