/* TopGend — couche responsive et administration */
html,body{max-width:100%;overflow-x:hidden}
body{min-width:320px}
img,svg,video,iframe{max-width:100%}
button,a,input,textarea,select{min-width:0}
h1,h2,h3,p,td,th,.nav-link{overflow-wrap:anywhere}

.app-shell{grid-template-columns:278px minmax(0,1fr)}
.sidebar{position:relative;top:auto;width:278px;height:auto;min-height:100vh;align-self:stretch;padding:24px 18px;overflow:visible}
.sidebar .nav-group{margin-top:24px}
.sidebar .admin-nav-group{margin-top:7px}
.sidebar .nav-label{margin:20px 13px 0;color:#7f94b1}
.admin-navigation{padding-top:8px}
.sidebar-foot{padding-bottom:4px}
.sidebar-overlay{display:none;position:fixed;inset:0;border:0;background:rgba(3,10,22,.6);backdrop-filter:blur(3px);z-index:25}
.main-column{width:100%;min-width:0}
.topbar{position:relative;top:auto}
.subject-card,.security-note{position:static;top:auto}
.page-wrap{width:100%;max-width:1540px;padding:38px clamp(24px,3.5vw,58px) 76px}
.page-heading{align-items:center;flex-wrap:wrap;gap:18px}
.page-heading>div{min-width:0;max-width:900px}
.page-heading>.button{flex:0 0 auto}
.heading-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.heading-actions form{margin:0}
.panel{overflow:hidden}
.content-grid,.settings-layout,.writing-layout{min-width:0}
.form-panel{max-width:none}
.form-panel form,.form-section{display:grid;gap:18px}
input,textarea,select{max-width:100%}

.login-page{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);overflow:hidden}
.login-showcase,.login-panel{min-width:0}
.login-panel{padding-inline:clamp(28px,5vw,72px);overflow:hidden}
.auth-card{width:100%;max-width:440px;min-width:0}
.auth-card .button{white-space:normal;text-align:center}
.video-frame{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#050b14}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.center-panel .button{margin:8px 4px}
.wix-callback-page .loader{margin-bottom:24px}

/* Administration */
.admin-heading{padding-bottom:4px}
.admin-metrics{grid-template-columns:repeat(4,minmax(0,1fr))}
.metric-icon.violet{background:#f1eafd;color:#744da0}
.admin-shortcuts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0 0 22px}
.admin-shortcuts>a{display:grid;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:15px;padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 28px rgba(25,42,70,.035);transition:.2s}
.admin-shortcuts>a:hover{transform:translateY(-2px);border-color:#8eb4df;box-shadow:var(--shadow)}
.admin-shortcuts>a>span{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--blue) 12%,var(--surface));color:var(--blue);font-size:1.25rem}
.admin-shortcuts small{display:block;color:var(--muted);margin-top:2px}
.admin-shortcuts b{color:var(--blue);font-size:1.25rem}
.admin-alert-block{background:linear-gradient(135deg,#fff6eb,#fff);border:1px solid #efcfaa;border-radius:18px;padding:22px;margin-bottom:22px;color:#603d1d}
html[data-theme=dark] .admin-alert-block{background:linear-gradient(135deg,#2d2117,#171e29);border-color:#60462e;color:#f7ddbf}
.admin-alert-title{display:flex;gap:15px;align-items:flex-start}
.admin-alert-title>span{width:44px;height:44px;display:grid;place-items:center;flex:0 0 auto;background:#d66c27;color:#fff;border-radius:13px;font-weight:800}
.admin-alert-title h2{margin:2px 0}.admin-alert-title p{color:inherit;opacity:.82}
.alert-list{margin-top:16px;display:grid;gap:9px}
.alert-list article{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 15px;background:color-mix(in srgb,var(--surface) 78%,transparent);border:1px solid color-mix(in srgb,#d69c63 35%,var(--border));border-radius:12px}
.alert-list article>div{min-width:0}.alert-list small{display:block;opacity:.7}.alert-list p{font-size:.84rem;opacity:.8}
.responsive-table{width:100%;max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain}
.responsive-table table{min-width:720px}
.row-link{white-space:nowrap}
.actions{display:flex;justify-content:flex-end;align-items:center;gap:12px;flex-wrap:wrap;white-space:nowrap}
.actions form{display:inline;margin:0}

/* Gestion IA */
.ai-settings-form .settings-layout{align-items:start}
.sticky-save{position:static;display:flex;justify-content:flex-end;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
.prompt-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.prompt-tab{border:1px solid var(--border);background:var(--surface-2);color:var(--muted);padding:9px 13px;border-radius:999px;cursor:pointer;font-weight:700}
.prompt-tab.active{background:var(--navy);border-color:var(--navy);color:#fff}
.prompt-pane{display:none}.prompt-pane.active{display:block}

/* Assistant flottant */
.ai-fab{position:fixed;right:24px;bottom:24px;z-index:61;height:54px;padding:0 18px 0 10px;border:0;border-radius:999px;background:linear-gradient(135deg,#1d64b5,#113d73);color:#fff;display:flex;align-items:center;gap:10px;box-shadow:0 14px 38px rgba(13,50,94,.35);cursor:pointer;transition:.2s}
.ai-fab:hover{transform:translateY(-2px);box-shadow:0 18px 45px rgba(13,50,94,.42)}
.ai-fab span{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.14)}
.ai-backdrop{display:none}
.ai-drawer{position:fixed;right:24px;bottom:90px;z-index:62;width:min(430px,calc(100vw - 32px));height:min(680px,calc(100dvh - 120px));display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:var(--surface);border:1px solid var(--border);border-radius:22px;box-shadow:0 30px 80px rgba(3,15,34,.3);overflow:hidden;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(18px) scale(.97);transform-origin:bottom right;transition:.2s ease}
.ai-widget.open .ai-drawer{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.ai-widget.open .ai-fab{opacity:0;visibility:hidden;transform:translateY(10px)}
.ai-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 17px;background:linear-gradient(135deg,#10335f,#0b2548);color:#fff}
.ai-drawer-head>div{display:flex;gap:11px;align-items:center;min-width:0}.ai-drawer-head small{display:block;color:#aebed2;font-size:.72rem}.ai-drawer-head button{width:34px;height:34px;border:0;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;font-size:1.4rem;cursor:pointer;flex:0 0 auto}
.ai-orb{width:40px;height:40px;display:grid;place-items:center;border-radius:13px;background:rgba(255,255,255,.12);color:#a9d0ff}
.ai-widget-history{padding:18px;overflow-y:auto;display:flex;flex-direction:column;gap:11px;scrollbar-gutter:stable}
.ai-message{max-width:86%;padding:11px 13px;border:1px solid var(--border);border-radius:14px;background:var(--surface-2);align-self:flex-start;white-space:pre-wrap}
.ai-message.user{align-self:flex-end;background:var(--blue);border-color:var(--blue);color:#fff;border-bottom-right-radius:4px}
.ai-message.assistant{border-bottom-left-radius:4px}.ai-message small{display:block;color:var(--muted);font-size:.66rem;margin-bottom:4px}.ai-message.user small{color:#d7e7fa}
.ai-message.loading{opacity:.7}.ai-message.loading div:after{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:currentColor;margin-left:6px;animation:pulse 1s infinite alternate}@keyframes pulse{to{opacity:.2}}
.ai-welcome{text-align:center;margin:auto;color:var(--muted);padding:16px}.ai-welcome>span{width:58px;height:58px;margin:0 auto 12px;display:grid;place-items:center;border-radius:18px;background:color-mix(in srgb,var(--blue) 12%,var(--surface));color:var(--blue);font-size:1.4rem}.ai-welcome h2{color:var(--text);margin:0}.ai-welcome button{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:999px;padding:7px 10px;margin:8px 3px 0;cursor:pointer}
.ai-widget-form{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:9px;align-items:end;padding:13px;border-top:1px solid var(--border);background:var(--surface)}
.ai-widget-form textarea{min-height:68px;max-height:150px;resize:vertical;padding:10px 12px}
.ai-widget-form button{width:44px;height:44px;border:0;border-radius:13px;background:var(--blue);color:#fff;cursor:pointer}.ai-widget-form button:disabled{opacity:.5;cursor:wait}

.mobile-bottom-nav{display:none}
.auto-refresh-state{display:block;color:var(--muted);margin-top:10px}

@media(max-width:1180px){
  .app-shell{grid-template-columns:238px minmax(0,1fr)}
  .sidebar{width:238px;padding-inline:14px}
  .admin-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .settings-layout{grid-template-columns:minmax(0,1fr) 290px}
}

@media(max-width:920px){
  .app-shell{display:block}
  .sidebar{position:fixed;inset:0 auto 0 0;left:0;width:min(310px,88vw);height:100dvh;min-height:0;overflow-y:auto;overscroll-behavior:contain;transform:translateX(-105%);transition:transform .24s ease;box-shadow:none;z-index:40}
  .sidebar.open{left:0;transform:translateX(0);box-shadow:18px 0 55px rgba(0,0,0,.3)}
  .sidebar-overlay.open{display:block;z-index:35}
  body.menu-open{overflow:hidden}
  .mobile-menu{display:grid;place-items:center;flex:0 0 auto}
  .topbar{height:70px;padding:0 clamp(14px,4vw,28px)}
  .page-wrap{padding:28px clamp(16px,4vw,30px) 104px}
  .mobile-bottom-nav{position:fixed;left:12px;right:12px;bottom:10px;z-index:39;height:64px;display:grid;grid-template-columns:repeat(4,1fr);padding:7px;background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--border);border-radius:18px;box-shadow:0 12px 35px rgba(4,17,36,.18);backdrop-filter:blur(16px)}
  .mobile-bottom-nav a{position:relative;display:grid;place-items:center;color:var(--muted);font-weight:700;line-height:1.05}.mobile-bottom-nav a>span{font-size:1.15rem}.mobile-bottom-nav small{font-size:.61rem}.mobile-bottom-nav b{position:absolute;top:0;right:18%;background:var(--gold);color:#182236;border-radius:20px;padding:1px 5px;font-size:.58rem}
  .settings-layout,.writing-layout{grid-template-columns:1fr}
  .subject-card,.security-note{position:static}
  .ai-fab{bottom:86px;right:16px}
  .content-grid{grid-template-columns:1fr}
}

@media(max-width:820px){
  .responsive-table{overflow:visible}
  .responsive-table table,.responsive-table thead,.responsive-table tbody,.responsive-table tr,.responsive-table th,.responsive-table td{display:block;width:100%;min-width:0}
  .responsive-table thead{display:none}
  .responsive-table tbody{display:grid;gap:12px}
  .responsive-table tr{padding:14px;background:var(--surface-2);border:1px solid var(--border);border-radius:13px}
  .responsive-table td{border:0;padding:6px 0}
  .responsive-table td:before{content:attr(data-label);display:block;margin-bottom:2px;font-size:.62rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:800}
  .responsive-table td[colspan]:before{display:none}
  .responsive-table .actions{justify-content:flex-start}
  .responsive-table .actions a,.responsive-table .actions button{display:inline-flex;padding:7px 10px;border-radius:8px;background:var(--surface);border:1px solid var(--border)}
}

@media(max-width:700px){
  h1{font-size:clamp(1.75rem,8vw,2.35rem)}h2{font-size:1.24rem}
  .topbar>div{min-width:0}.topbar strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}.topbar .eyebrow{font-size:.6rem}
  .page-heading{display:flex;align-items:flex-start;margin-bottom:20px}.page-heading>*{width:100%}.page-heading>.status-pill{width:max-content}.page-heading>.button{width:100%}
  .hero-card{grid-template-columns:1fr;min-height:auto}.hero-copy{padding:30px 22px}.hero-art{display:none}
  .metric-grid,.admin-metrics,.resource-grid,.category-grid,.correction-grid{grid-template-columns:1fr}
  .admin-shortcuts{grid-template-columns:1fr}
  .admin-shortcuts>a{padding:16px;grid-template-columns:42px minmax(0,1fr) auto}.admin-shortcuts>a>span{width:42px;height:42px}
  .panel,.writing-card,.subject-card{padding:18px;border-radius:15px}
  .category-card{grid-template-columns:38px minmax(0,1fr);padding:20px;min-height:0}.category-card>.arrow{display:none}
  .exercise-card{grid-template-columns:36px minmax(0,1fr);padding:18px}.exercise-card>.arrow{display:none}
  .writing-card textarea{min-height:52vh;padding:15px}.submit-bar{display:grid}.submit-bar .button{width:100%}
  .score-banner{grid-template-columns:1fr;padding:22px}.score-banner strong{font-size:2.4rem}
  .message-row{grid-template-columns:38px minmax(0,1fr)}.message-row>.arrow{display:none}.message-row>div>div{display:block}
  .search-bar{display:grid;grid-template-columns:1fr}.search-bar .button{width:100%}
  .heading-actions{display:grid;grid-template-columns:1fr;width:100%}.heading-actions>*{width:100%}.heading-actions form .button{width:100%}
  .retake-list form{align-items:flex-start;flex-direction:column}.retake-list .button{width:100%}
  .prompt-tabs{display:grid;grid-template-columns:1fr 1fr}.prompt-tab{border-radius:10px}.sticky-save .button{width:100%}
  .alert-list article{display:grid}.alert-list article form,.alert-list article .button{width:100%}
  .ai-drawer{right:0;bottom:0;width:100%;height:min(82dvh,720px);border-radius:22px 22px 0 0;transform:translateY(100%);transform-origin:bottom center}.ai-widget.open .ai-drawer{transform:none}.ai-widget.open .ai-backdrop{display:block;position:fixed;inset:0;z-index:60;border:0;background:rgba(3,10,22,.58);backdrop-filter:blur(2px)}body.assistant-open{overflow:hidden}.ai-widget-history{padding:15px}.ai-message{max-width:91%}
}

@media(max-width:450px){
  .page-wrap{padding-inline:13px}.topbar{padding-inline:12px}.theme-toggle{width:58px;flex:0 0 auto}.topbar strong{font-size:.8rem;max-width:42vw}
  .panel,.writing-card,.subject-card{padding:15px}.metric-card{padding:16px}
  .prompt-tabs{grid-template-columns:1fr}.form-actions{display:grid}.form-actions .button{width:100%}
  .admin-alert-title{display:grid}.admin-alert-block{padding:16px}
  .ai-fab{width:52px;height:52px;padding:8px}.ai-fab strong{display:none}.ai-fab span{width:36px;height:36px}
  .mobile-bottom-nav{left:8px;right:8px;bottom:7px}
}

@media(max-width:1050px){.login-page{grid-template-columns:1fr}.login-showcase{display:none}}