@import"https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,800;1,400;1,600&family=DM+Sans:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root,[data-theme=sand]{--bg-primary: #fffaf5;--bg-surface: #fff6ed;--bg-elevated: #fef0e0;--bg-glass: rgba(255, 246, 237, .75);--text-primary: #5c4d42;--text-muted: #a89080;--text-subtle: #d4c4b8;--accent: #d4a373;--accent-hover: #c4935f;--accent-text: #ffffff;--accent-glow: rgba(212, 163, 115, .2);--accent-rgb: 212, 163, 115;--accent-2: #7dab9a;--accent-rose: #c97a7a;--accent-amber: #d4a020;--success: #5a9e72;--border: rgba(92, 77, 66, .1);--border-strong: rgba(92, 77, 66, .2);--card-shadow: 0 2px 16px rgba(92, 77, 66, .08);--input-bg: rgba(92, 77, 66, .05);--hover-bg: rgba(212, 163, 115, .08);--sidebar-bg: #fff6ed;--sidebar-border: rgba(92, 77, 66, .1);--topbar-bg: #fff6ed;--scrollbar-bg: #fffaf5;--scrollbar-thumb: #e8d5c4;--font-head: "Playfair Display", serif;--font-body: "DM Sans", sans-serif;--font-mono: "JetBrains Mono", monospace;--sidebar-w: 240px;--sidebar-icon-w: 68px;--font-base: 15px;--card-padding: 20px;--line-height: 1.6;--radius-card: 14px;--radius-btn: 8px;--radius-input: 8px}[data-theme=orchid]{--bg-primary: #fdfcfb;--bg-surface: #f8f5ff;--bg-elevated: #f2eeff;--bg-glass: rgba(255, 255, 255, .55);--text-primary: #4a3f52;--text-muted: #8b7d9a;--text-subtle: #c8bdd4;--accent: #9d81d1;--accent-hover: #8a6dc0;--accent-text: #ffffff;--accent-glow: rgba(157, 129, 209, .18);--accent-rgb: 157, 129, 209;--accent-2: #6dc4c4;--accent-rose: #d18181;--accent-amber: #c4963a;--success: #5ea87a;--border: rgba(74, 63, 82, .1);--border-strong: rgba(74, 63, 82, .2);--card-shadow: 0 2px 16px rgba(157, 129, 209, .1);--input-bg: rgba(255, 255, 255, .6);--hover-bg: rgba(157, 129, 209, .08);--sidebar-bg: #f8f5ff;--sidebar-border: rgba(74, 63, 82, .08);--topbar-bg: #f8f5ff;--scrollbar-bg: #fdfcfb;--scrollbar-thumb: #e0d6f0;--font-head: "Playfair Display", serif;--font-body: "DM Sans", sans-serif;--font-mono: "JetBrains Mono", monospace}[data-theme=matcha]{--bg-primary: #0d1a15;--bg-surface: #111f18;--bg-elevated: #162a1e;--bg-glass: rgba(17, 31, 24, .78);--text-primary: #e0f2e9;--text-muted: #6b9e7a;--text-subtle: #2d4a38;--accent: #beff82;--accent-hover: #aaef6a;--accent-text: #0d1a15;--accent-glow: rgba(190, 255, 130, .16);--accent-rgb: 190, 255, 130;--accent-2: #5ec4b8;--accent-rose: #ff7a7a;--accent-amber: #f5c842;--success: #5dde8a;--border: rgba(190, 255, 130, .1);--border-strong: rgba(190, 255, 130, .2);--card-shadow: 0 4px 24px rgba(0, 0, 0, .5);--input-bg: rgba(255, 255, 255, .05);--hover-bg: rgba(190, 255, 130, .06);--sidebar-bg: #0a1510;--sidebar-border: rgba(190, 255, 130, .08);--topbar-bg: #0a1510;--scrollbar-bg: #0d1a15;--scrollbar-thumb: #1e3828;--font-head: "Outfit", sans-serif;--font-body: "Outfit", sans-serif;--font-mono: "JetBrains Mono", monospace;--radius-card: 12px;--radius-btn: 6px;--radius-input: 6px}[data-fontsize=compact]{--font-base: 13px;--card-padding: 12px;--line-height: 1.4}[data-fontsize=comfortable]{--font-base: 15px;--card-padding: 20px;--line-height: 1.6}[data-fontsize=spacious]{--font-base: 17px;--card-padding: 28px;--line-height: 1.8}*,*:before,*:after{box-sizing:border-box}html{font-size:var(--font-base, 15px);scroll-behavior:smooth}body,#root{min-height:100vh}body{margin:0;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);line-height:var(--line-height);transition:background .35s,color .35s}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}img{display:block;max-width:100%}h1,h2,h3,h4,h5{margin:0;color:var(--text-primary);font-family:var(--font-head)}strong,.mono,code{font-family:var(--font-mono)}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:var(--scrollbar-bg)}::-webkit-scrollbar-thumb{border-radius:3px;background:var(--scrollbar-thumb)}.theme-transitioning,.theme-transitioning *{transition:background-color .32s ease,color .32s ease,border-color .32s ease,box-shadow .32s ease}.preview-shell,.auth-page{min-height:100vh;background:var(--bg-primary)}.preview-shell{display:flex;align-items:center;justify-content:center;padding:40px 24px}.preview-container{width:100%;max-width:1080px;text-align:center}.preview-logo{display:inline-flex;align-items:center;gap:12px;margin-bottom:12px}.preview-logo-mark,.login-logo-mark,.sidebar-logo-mark{display:flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-text);box-shadow:0 2px 8px var(--accent-glow)}.preview-logo-mark{width:52px;height:52px;border-radius:14px;font-size:1.4rem;font-weight:800;font-family:var(--font-head)}.preview-logo-name{font-size:2rem;font-weight:700;font-family:var(--font-head)}.preview-subtitle{max-width:720px;margin:0 auto 36px;color:var(--text-muted);font-size:1rem}.pages-grid,.content-grid{display:grid;gap:16px}.pages-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:24px}.content-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.session-workspace-grid,.attendance-workspace-grid,.phase3-stack{align-items:start}.phase3-metric-grid,.phase3-subgrid{display:grid;gap:16px}.phase3-metric-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}.phase3-subgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.phase3-toggle{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:12px;background:var(--bg-surface);padding:12px 14px}.attendance-main-card{grid-column:1 / -1}.content-grid-single{grid-template-columns:1fr}.page-card,.card,.content-panel,.panel-callout,.feature-item,.session-card{border:1px solid var(--border);background:var(--bg-surface);box-shadow:var(--card-shadow)}.page-card,.card,.content-panel,.session-card{border-radius:var(--radius-card);padding:var(--card-padding)}.page-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:8px;transition:transform .2s,box-shadow .2s,border-color .2s}.page-card:before{content:"";position:absolute;top:0;right:0;left:0;height:3px;background:var(--accent);opacity:0;transition:opacity .2s}.page-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}.page-card:hover:before{opacity:1}.page-icon{font-size:1.75rem}.page-title-text,.card-title,.section-title{font-weight:700;font-family:var(--font-head)}.page-title-text{font-size:.95rem}.page-desc,.card-copy,.page-subtitle,.feature-text p,.panel-callout p,.user-role,.page-badge{color:var(--text-muted)}.page-desc,.card-copy,.feature-text p{text-align:left}.page-badge,.section-kicker{text-transform:uppercase;letter-spacing:.08em;font-size:.68rem;font-weight:700}.page-badge{border:1px solid var(--border);border-radius:999px;background:var(--hover-bg);padding:4px 10px}.preview-card{text-align:left}.card-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.section-kicker{margin:0 0 8px;color:var(--accent)}.section-title{margin-bottom:12px;font-size:clamp(1.8rem,3vw,2.6rem)}.panel-callout{border-radius:12px;padding:14px 16px;background:var(--bg-elevated)}.panel-callout strong{color:var(--accent)}.auth-page{position:relative}.auth-page-center{display:flex;align-items:center;justify-content:center;padding:40px 24px}.content-panel-tight{max-width:540px}.theme-switcher-floating{position:fixed;top:20px;right:20px;z-index:999;display:flex;justify-content:flex-end}.theme-controls{display:flex;flex-direction:column;gap:10px;align-items:flex-end}.theme-controls-compact{gap:6px}.theme-switcher,.fontsize-switcher{display:flex;flex-wrap:wrap;gap:6px;padding:4px;border:1px solid var(--border);border-radius:10px;background:var(--bg-surface);box-shadow:var(--card-shadow)}.theme-btn,.fontsize-btn{border:none;border-radius:8px;background:transparent;color:var(--text-muted);padding:8px 10px;transition:background .2s,color .2s}.theme-btn{display:inline-flex;gap:6px;align-items:center}.theme-btn.active,.fontsize-btn.active,.theme-btn:hover,.fontsize-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.login-split{display:flex;min-height:100vh}.login-left,.login-right{min-height:100vh;padding:48px 40px}.login-left{flex:1;display:flex;align-items:center;justify-content:center}.login-right{position:relative;width:460px;overflow:hidden;border-left:1px solid var(--border);background:var(--bg-surface);display:flex;align-items:center}.login-right:before,.login-right:after{content:"";position:absolute;border-radius:50%}.login-right:before{top:-100px;right:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(var(--accent-rgb),.08) 0%,transparent 70%)}.login-right:after{bottom:-80px;left:-80px;width:240px;height:240px;background:radial-gradient(circle,rgba(var(--accent-rgb),.06) 0%,transparent 70%)}.login-box,.feature-list{position:relative;z-index:1;width:100%}.login-box{max-width:420px}.login-logo{display:flex;align-items:center;gap:10px;margin-bottom:32px}.login-logo-mark{width:40px;height:40px;border-radius:10px;font-size:1rem;font-weight:800}.login-logo-name{font-size:1.3rem;font-weight:800;font-family:var(--font-head)}.subdomain-notice{display:flex;align-items:center;gap:8px;margin-bottom:24px;border:1px solid var(--border);border-radius:8px;background:var(--bg-elevated);padding:10px 14px;color:var(--text-muted);font-size:.8rem}.login-title{margin-bottom:6px;font-size:1.8rem;letter-spacing:-.02em}.login-sub{margin-bottom:28px;color:var(--text-muted)}.login-form{display:grid;gap:16px}.form-field{display:grid;gap:8px}.form-field span{font-size:.9rem;font-weight:600}.input-wrap{position:relative}.input-icon{position:absolute;top:50%;left:14px;transform:translateY(-50%);color:var(--text-muted)}.form-input{width:100%;border:1px solid var(--border);border-radius:var(--radius-input);background:var(--input-bg);padding:13px 14px 13px 42px;color:var(--text-primary);outline:none}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.12)}.form-error{margin:0;color:var(--accent-rose);font-weight:600}.form-success{margin:0;color:var(--accent-forest);font-weight:600}.login-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-btn);padding:12px 16px;transition:transform .2s,box-shadow .2s,background .2s,color .2s}.login-btn,.btn-accent{background:var(--accent);color:var(--accent-text);box-shadow:0 4px 16px var(--accent-glow)}.login-btn:hover,.btn-accent:hover{transform:translateY(-1px);background:var(--accent-hover)}.btn:disabled,.login-btn:disabled{opacity:.75;cursor:wait}.btn-ghost,.topbar-btn,.avatar-btn,.collapse-btn{background:var(--hover-bg);color:var(--text-primary)}.btn-danger{background:#c97a7a24;color:var(--accent-rose)}.btn-sm{padding:10px 14px;font-size:.85rem}.btn-xs{padding:8px 10px;font-size:.78rem}.auth-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:18px}.auth-links a{color:var(--accent);font-size:.86rem;font-weight:600}.feature-list{display:grid;gap:14px}.feature-item{display:flex;align-items:flex-start;gap:14px;border-radius:14px;padding:16px;background:var(--bg-elevated)}.feature-icon-box{display:flex;width:40px;height:40px;flex-shrink:0;align-items:center;justify-content:center;border:1px solid rgba(var(--accent-rgb),.2);border-radius:10px;background:rgba(var(--accent-rgb),.1);font-size:1.1rem}.feature-text h4{margin-bottom:4px;font-size:.92rem}.app-shell{display:flex;min-height:100vh}.sidebar{position:fixed;top:0;bottom:0;left:0;z-index:200;display:flex;width:var(--sidebar-w);flex-direction:column;overflow:hidden;border-right:1px solid var(--sidebar-border);background:var(--sidebar-bg);transition:width .25s ease,transform .25s ease}.sidebar.collapsed{width:var(--sidebar-icon-w)}.sidebar-brand{display:flex;min-height:64px;align-items:center;gap:10px;border-bottom:1px solid var(--sidebar-border);padding:18px 16px}.sidebar-logo-mark{width:34px;height:34px;flex-shrink:0;border-radius:9px;font-size:1rem;font-weight:700}.sidebar-brand-copy{overflow:hidden}.sidebar-name{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--font-head);font-size:1rem;font-weight:700}.sidebar-role{display:block;font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.sidebar.collapsed .sidebar-brand-copy,.sidebar.collapsed .user-details{display:none}.sidebar-nav{display:flex;flex:1;flex-direction:column;gap:2px;overflow-y:auto;padding:10px 8px}.nav-item{display:flex;align-items:center;gap:11px;border-radius:var(--radius-btn);padding:9px 12px;color:var(--text-muted);transition:background .15s,color .15s,transform .15s}.nav-item:hover{background:var(--hover-bg);color:var(--text-primary)}.nav-item.active{margin-left:-2px;border-left:2px solid var(--accent);background:var(--hover-bg);padding-left:14px;color:var(--accent);font-weight:600}.nav-icon{width:20px;flex-shrink:0;text-align:center;font-weight:700}.nav-label{overflow:hidden;transition:opacity .2s,width .25s;white-space:nowrap}.sidebar.collapsed .nav-label{width:0;opacity:0}.sidebar-footer{border-top:1px solid var(--sidebar-border);padding:10px 8px}.user-info{display:flex;align-items:center;gap:10px;border-radius:var(--radius-btn);padding:9px 12px;background:transparent}.user-avatar,.avatar-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--accent);color:var(--accent-text);font-weight:700}.user-avatar{width:32px;height:32px;flex-shrink:0}.user-name{font-size:.86rem;font-weight:600}.main-content{display:flex;min-height:100vh;flex:1;flex-direction:column;margin-left:var(--sidebar-w);transition:margin-left .25s ease}.main-content.expanded{margin-left:var(--sidebar-icon-w)}.topbar{position:sticky;top:0;z-index:100;display:flex;height:72px;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--border);background:var(--topbar-bg);padding:0 24px}.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px}.notification-trigger{position:relative}.notification-badge{position:absolute;top:-6px;right:-4px;min-width:20px;border-radius:999px;background:var(--accent-rose);color:#fff;padding:2px 6px;font-size:.68rem;font-weight:700}.collapse-btn,.topbar-btn,.avatar-btn{border:1px solid var(--border);padding:10px 12px}.avatar-btn{width:38px;height:38px;padding:0}.page-title{font-size:1rem;font-weight:700;font-family:var(--font-head)}.page-subtitle{font-size:.78rem;color:var(--text-muted)}.page-content{padding:24px}.connectivity-banner{position:fixed;top:16px;left:50%;z-index:500;display:flex;width:min(calc(100vw - 24px),760px);align-items:center;justify-content:space-between;gap:18px;transform:translate(-50%);border:1px solid var(--border);border-radius:18px;padding:14px 18px;box-shadow:0 14px 34px #1e140a2e;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.connectivity-banner.offline{border-color:#d4a02047;background:#fff6ddf2}.connectivity-banner.syncing{border-color:#5a9e7247;background:#e6f7ecf5}.connectivity-banner-copy,.connectivity-banner-meta{display:flex;align-items:center}.connectivity-banner-copy{gap:12px;min-width:0}.connectivity-banner-meta{gap:10px;flex-shrink:0}.connectivity-banner-icon{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:999px;background:rgba(var(--accent-rgb),.12);font-size:1rem}.connectivity-banner.syncing .connectivity-banner-icon{animation:connectivity-spin 1.2s linear infinite}.connectivity-banner-text{display:flex;min-width:0;flex-direction:column;gap:2px;font-size:.92rem}.connectivity-banner-text strong{font-family:var(--font-body)}.connectivity-banner-text span,.connectivity-timestamp{color:var(--text-muted)}.connectivity-chip{border-radius:999px;background:rgba(var(--accent-rgb),.12);padding:6px 10px;font-size:.76rem;font-weight:700;color:var(--text-primary)}.connectivity-timestamp{white-space:nowrap;font-size:.78rem}.admin-create-grid{align-items:start}.admin-create-form{display:grid;gap:16px}.admin-form-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.admin-form-input{padding-left:14px}.phase2-textarea{min-height:120px;resize:vertical}.phase2-actions{display:flex;flex-wrap:wrap;gap:12px}.phase2-checkbox-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.phase2-checkbox{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:12px;background:var(--bg-surface);padding:10px 12px}.phase2-tag-row{display:flex;flex-wrap:wrap;gap:10px}.admin-result-stack{display:grid;gap:16px}.admin-result-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}.admin-result-list div{border:1px solid var(--border);border-radius:12px;background:var(--bg-surface);padding:14px}.admin-result-list dt{margin-bottom:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.admin-result-list dd{margin:0;font-size:.95rem}.admin-academy-list-section{margin-top:24px}.admin-academy-list-filters{margin:18px 0}.admin-academy-pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px}.parent-link-grid,.tutor-presence-grid,.course-batch-grid{align-items:start}.parent-link-form,.parent-link-result,.parent-signup-form{display:grid;gap:16px}.course-batch-schedule-list{display:grid;gap:12px}.course-batch-schedule-card{gap:12px;padding:16px}.course-batch-slot-actions{align-items:end}.course-batch-meta{display:flex;flex-wrap:wrap;gap:10px}.tutor-presence-list,.tutor-presence-actions{display:grid;gap:12px}.tutor-presence-actions{grid-template-columns:repeat(2,minmax(0,max-content));margin-bottom:16px}.attendance-filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.attendance-table-wrap{overflow:auto;border:1px solid var(--border);border-radius:16px;background:var(--bg-surface)}.attendance-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}.attendance-table th,.attendance-table td{padding:14px 16px;text-align:left;vertical-align:top}.attendance-table th{position:sticky;top:0;z-index:1;border-bottom:1px solid var(--border);background:var(--bg-elevated);font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.attendance-table td{border-bottom:1px solid var(--border)}.attendance-table tbody tr:last-child td{border-bottom:none}.attendance-cell-title{font-weight:600}.attendance-cell-copy{margin-top:4px;color:var(--text-muted)}.attendance-status-select{min-width:180px}.attendance-mobile-list{display:none;gap:16px}.record-list{display:grid;gap:16px}.record-card{display:grid;gap:16px;border:1px solid var(--border);border-radius:14px;background:var(--bg-surface);padding:18px}.record-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.payment-action-stack{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}.payment-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.payment-row p{margin:0}.tutor-presence-chip{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:999px;background:var(--hover-bg);padding:10px 14px;font-size:.9rem;font-weight:600}.parent-link-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.detail-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}.detail-list div{border:1px solid var(--border);border-radius:12px;background:var(--bg-surface);padding:14px}.detail-list dt{margin-bottom:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.detail-list dd{margin:0;font-size:.95rem}.notification-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:600;display:flex;justify-content:flex-end}.notification-backdrop{flex:1;border:none;background:#0000003d}.notification-drawer{position:relative;width:min(420px,100vw);height:100vh;overflow-y:auto;border-left:1px solid var(--border);background:var(--bg-primary);padding:24px 20px;box-shadow:-16px 0 40px #19120c24}.notification-card.is-read{opacity:.78}.placeholder-card{min-height:220px}.card-copy{line-height:1.6}@media (max-width: 1080px){.login-right{width:360px}.pages-grid,.content-grid{grid-template-columns:1fr 1fr}.phase3-metric-grid,.phase3-subgrid{grid-template-columns:1fr}.attendance-filters{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 860px){.sidebar,.sidebar.collapsed{transform:translate(-100%)}.main-content,.main-content.expanded{margin-left:0}.login-split{flex-direction:column}.login-right{width:100%;min-height:auto}.theme-switcher-floating{position:static;padding:20px 20px 0}.attendance-table-wrap{display:none}.attendance-mobile-list{display:grid}}@media (max-width: 640px){.preview-shell,.auth-page-center{padding:24px 16px}.page-content,.login-left,.login-right{padding:20px 16px}.connectivity-banner{top:10px;width:min(calc(100vw - 16px),760px);flex-direction:column;align-items:flex-start;gap:10px;padding:12px 14px}.connectivity-banner-meta{width:100%;justify-content:space-between}.pages-grid,.content-grid,.admin-form-columns,.admin-result-list,.parent-link-columns,.detail-list,.attendance-filters{grid-template-columns:1fr}.topbar{height:auto;padding:16px;align-items:flex-start;flex-direction:column}.topbar-right{width:100%;justify-content:space-between}.record-header,.payment-row,.admin-academy-pagination{flex-direction:column;align-items:flex-start}.payment-action-stack{justify-content:flex-start}.notification-drawer{width:100%;padding:20px 16px}}@keyframes connectivity-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}