:root{--vc-bg:#f7f8fa;--vc-surface:#fff;--vc-surface-muted:#f8fafc;--vc-text:#111827;--vc-muted:#64748b;--vc-border:#e5e7eb;--vc-border-strong:#d1d5db;--vc-primary:#4f46e5;--vc-primary-dark:#4338ca;--vc-danger:#dc2626;--vc-success:#059669;--vc-warning:#d97706;--vc-radius-sm:.375rem;--vc-radius:.5rem;--vc-radius-lg:.75rem;--vc-shadow:0 1px 2px rgba(15,23,42,.04);--vc-control-height:2.5rem;color-scheme:light}
*{box-sizing:border-box}
html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{margin:0;background:var(--vc-bg);color:var(--vc-text);accent-color:var(--vc-primary);font-size:1rem;line-height:1.5}
:focus-visible{outline:2px solid rgba(79,70,229,.55)!important;outline-offset:2px}
.vc-app-shell{min-height:100vh;background:var(--vc-bg);color:var(--vc-text)}
.vc-page{width:100%;max-width:1500px;margin:0 auto;padding:1rem 1.25rem}
.vc-page-wide{max-width:1800px}
.vc-top-nav,.vc-card{background:var(--vc-surface);border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);box-shadow:var(--vc-shadow)}
.vc-top-nav{display:flex;gap:.75rem;align-items:center;justify-content:space-between;padding:.75rem 1rem}
.vc-page-title{font-size:clamp(1.25rem,2vw,1.75rem);font-weight:750;letter-spacing:-.025em;color:var(--vc-text)}
.vc-kicker{font-size:.75rem;font-weight:700;letter-spacing:.04em;color:var(--vc-primary)}
.vc-section-card{background:var(--vc-surface);border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);box-shadow:var(--vc-shadow);overflow:hidden}
.vc-surface{background:var(--vc-surface);border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);box-shadow:var(--vc-shadow)}
.vc-shell-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.5rem;padding:.625rem 1rem;border-bottom:1px solid var(--vc-border);background:var(--vc-surface)}
.vc-brand{font-size:.875rem;font-weight:800;letter-spacing:.04em;color:var(--vc-text)}
.vc-link{color:var(--vc-primary);font-weight:650;text-decoration:none}.vc-link:hover{color:var(--vc-primary-dark)}
.vc-btn,.vc-btn-primary,.vc-btn-secondary,.vc-btn-quiet,.vc-btn-danger,.vc-btn-chat{display:inline-flex;min-height:var(--vc-control-height);align-items:center;justify-content:center;gap:.5rem;border-radius:var(--vc-radius);padding:.625rem .875rem;font-size:.875rem;font-weight:700;line-height:1;border:1px solid transparent;transition:background-color .15s,border-color .15s,color .15s,box-shadow .15s;white-space:nowrap}
.vc-btn-primary{background:var(--vc-primary);color:#fff}
.vc-btn-primary:hover{background:var(--vc-primary-dark)}
.vc-btn-secondary{background:#fff;color:#334155;border-color:var(--vc-border)}
.vc-btn-secondary:hover{background:#f8fafc;color:#0f172a}
.vc-btn-quiet{background:transparent;color:#475569}
.vc-btn-quiet:hover{background:#f1f5f9;color:#0f172a}
.vc-btn-danger{background:#fff;color:var(--vc-danger);border-color:#fecdd3}
.vc-btn-danger:hover{background:#fff1f2}
.vc-btn-chat{background:var(--vc-primary);color:#fff}
.vc-btn[disabled],.vc-btn-primary[disabled],.vc-btn-secondary[disabled],.vc-btn-danger[disabled],.vc-btn-chat[disabled],[aria-disabled="true"]{cursor:not-allowed;opacity:.55}
.vc-loading{position:relative;color:#64748b}
.vc-loading:before{content:"";display:inline-block;width:1rem;height:1rem;margin-right:.5rem;border-radius:999px;border:2px solid #cbd5e1;border-top-color:var(--vc-primary);vertical-align:-.2em;animation:vc-spin .8s linear infinite}
@keyframes vc-spin{to{transform:rotate(360deg)}}
.vc-input,.vc-textarea,.vc-select,input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),textarea,select{border:1px solid var(--vc-border-strong);border-radius:var(--vc-radius);background:#fff;color:var(--vc-text);font-size:.875rem;min-height:var(--vc-control-height)}
.vc-input,.vc-select,input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),select{padding:0 .875rem}
.vc-textarea,textarea{padding:.75rem .875rem}
.vc-input:focus,.vc-textarea:focus,.vc-select:focus,input:focus,textarea:focus,select:focus{border-color:#a5b4fc;box-shadow:0 0 0 4px rgba(79,70,229,.12);outline:0}
.vc-table-wrap{overflow-x:auto;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:#fff}
.vc-table,table{width:100%;border-collapse:separate;border-spacing:0}
.vc-table th,table th{background:#f8fafc;color:#64748b;font-size:.68rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase;text-align:left}
.vc-table th,.vc-table td,table th,table td{padding:.75rem 1rem;border-bottom:1px solid #e2e8f0}
.vc-table tr:hover td,tbody tr:hover td{background:#f8fafc}
.vc-badge{display:inline-flex;align-items:center;gap:.35rem;border-radius:999px;border:1px solid var(--vc-border);background:#f8fafc;color:#475569;padding:.25rem .625rem;font-size:.75rem;font-weight:800}
.vc-badge-success{border-color:#a7f3d0;background:#ecfdf5;color:#047857}
.vc-badge-danger{border-color:#fecdd3;background:#fff1f2;color:#be123c}
.vc-empty{padding:2.5rem 1rem;text-align:center;color:#64748b}
.vc-empty strong{display:block;color:#0f172a;font-size:1.125rem}
.vc-alert{border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;padding:.75rem .875rem;color:#334155;font-weight:650}
.vc-alert-danger{border-color:#fecdd3;background:#fff1f2;color:#be123c}
.vc-alert-success{border-color:#a7f3d0;background:#ecfdf5;color:#047857}
@media(max-width:640px){.vc-page{padding:.75rem}
.vc-top-nav{align-items:flex-start;flex-direction:column}
.vc-btn,.vc-btn-primary,.vc-btn-secondary,.vc-btn-danger,.vc-btn-chat{width:100%}
.vc-card,.vc-section-card{border-radius:var(--vc-radius-lg)}
table th,table td{padding:.65rem .75rem}
}

.vc-auth-shell{display:flex;min-height:100dvh;align-items:center;justify-content:center;padding:1rem}
.vc-auth-card{width:100%;max-width:24rem;padding:2rem;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:var(--vc-surface);box-shadow:var(--vc-shadow)}
.vc-field-label{display:block;margin-bottom:.375rem;color:#475569;font-size:.8125rem;font-weight:650}
.vc-account-trigger{display:flex;cursor:pointer;list-style:none;align-items:center;gap:.5rem;border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;padding:.375rem .5rem;transition:background-color .15s}
.vc-account-trigger:hover{background:var(--vc-surface-muted)}
.vc-account-popover{position:absolute;right:0;z-index:50;margin-top:.5rem;width:min(17rem,calc(100vw - 1.5rem));overflow:hidden;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:#fff;box-shadow:0 8px 24px rgba(15,23,42,.1)}
.vc-menu-link{display:flex;align-items:center;gap:.625rem;border-radius:var(--vc-radius-sm);padding:.625rem .75rem;color:#475569;font-size:.875rem;font-weight:650;transition:background-color .15s,color .15s}
.vc-menu-link:hover,.vc-menu-link.is-active{background:var(--vc-surface-muted);color:var(--vc-text)}
.vc-menu-icon{display:inline-flex;width:1.25rem;align-items:center;justify-content:center;color:#64748b}.vc-menu-icon svg{width:1rem;height:1rem}

.vc-menu-summary::-webkit-details-marker{display:none}
.vc-menu-summary::marker{content:""}
.vc-notification-unlock{position:fixed;right:1rem;bottom:1rem;z-index:250;width:auto;box-shadow:0 8px 24px rgba(15,23,42,.16)}

/* Shared conversation surfaces receive their height from their host. */
.conversation-panel{display:flex;min-height:0;flex-direction:column;overflow:hidden}
.conversation-panel [data-conversation-body]{min-height:0;flex:1 1 auto;overflow-y:auto}
.conversation-panel [data-conversation-composer]{flex:0 0 auto}
.messages-layout>.conversation-panel{min-height:32rem}
.conversation-message{display:flex;flex-direction:column;align-items:flex-start}
.conversation-message.is-own{align-items:flex-end}
.conversation-panel-header{border-bottom:1px solid var(--vc-border);padding:.75rem .875rem}
.conversation-target{display:flex;align-items:center;gap:.5rem;color:#64748b;font-size:.75rem;font-weight:650}.conversation-target select{min-height:2rem;padding:.25rem .5rem}
.conversation-body{background:var(--vc-surface-muted);padding:.875rem}
.conversation-composer{display:flex;flex-shrink:0;align-items:flex-end;gap:.5rem;border-top:1px solid var(--vc-border);padding:.625rem}
.conversation-attach-button{display:inline-flex;width:2.5rem;height:2.5rem;flex:0 0 auto;align-items:center;justify-content:center;border:1px solid var(--vc-border-strong);border-radius:var(--vc-radius);background:#fff;color:#475569}
.conversation-send-button{display:inline-flex;min-height:2.5rem;align-items:center;justify-content:center;border-radius:var(--vc-radius);background:var(--vc-primary);padding:0 .875rem;color:#fff;font-size:.875rem;font-weight:700}.conversation-send-button:hover{background:var(--vc-primary-dark)}
.conversation-message-bubble{inline-size:fit-content;max-inline-size:80%;min-inline-size:5.5rem;border-radius:.625rem;padding:.5rem .7rem;font-size:.875rem;line-height:1.45}
.conversation-message-sender{display:block;margin-bottom:.2rem;font-size:.68rem;line-height:1.1;opacity:.65}
.conversation-message-body{white-space:normal;overflow-wrap:anywhere;word-break:normal}
.conversation-message-meta{display:flex;justify-content:flex-end;gap:.3rem;margin-top:.25rem;font-size:.62rem;line-height:1;opacity:.65}
.conversation-image-trigger{display:block;max-width:100%;margin-top:.5rem;overflow:hidden;border:1px solid currentColor;border-radius:var(--vc-radius);background:rgba(255,255,255,.1);cursor:zoom-in}
.conversation-image-trigger:hover{opacity:.9}.conversation-image-trigger:focus-visible{outline:3px solid rgba(129,140,248,.8)!important}
.conversation-image-thumbnail{display:block;width:100%;max-width:100%;max-height:16rem;object-fit:contain;background:#f1f5f9}
.conversation-file-link{display:block;margin-top:.5rem;overflow:hidden;border:1px solid currentColor;border-radius:var(--vc-radius);background:rgba(255,255,255,.1)}
.conversation-lightbox{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:max(1rem,env(safe-area-inset-top)) max(1rem,env(safe-area-inset-right)) max(1rem,env(safe-area-inset-bottom)) max(1rem,env(safe-area-inset-left));background:rgba(2,6,23,.86)}
.conversation-lightbox[hidden]{display:none}.conversation-lightbox-dialog{position:relative;display:flex;max-width:92vw;max-height:88vh;align-items:center;justify-content:center}
.conversation-lightbox-image{display:block;max-width:92vw;max-height:88vh;object-fit:contain;border-radius:var(--vc-radius)}
.conversation-lightbox-close{position:absolute;top:.5rem;right:.5rem;z-index:1;display:inline-flex;width:2.5rem;height:2.5rem;align-items:center;justify-content:center;border-radius:var(--vc-radius);background:#fff;color:#0f172a;font-size:1.5rem}
.conversation-lightbox-error{padding:1rem;border-radius:var(--vc-radius);background:#fff;color:#be123c;font-weight:700}
@media(min-width:1024px){.student-chat-panel>.conversation-panel,[data-chat-drawer] aside>.conversation-panel{height:100%;min-height:0}}
@media(max-width:1023px){.conversation-panel{min-height:34rem}.conversation-message-bubble{max-inline-size:88%}}
/* Chat unread notification badge */
.vc-btn-chat {
  position: relative;
  overflow: visible;
  background: var(--vc-primary);
  color: #fff;
}

.vc-btn-chat[data-has-unread] {
  box-shadow:
    0 0 0 3px rgba(99, 102, 241, 0.22),
    0 6px 16px rgba(79, 70, 229, 0.18);
}

.vc-chat-unread-badge {
  display: inline-flex;
  min-width: 1.35rem;
  height: 1.35rem;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0 0.34rem;
  border: 2px solid rgba(255, 255, 255, 0.95);
  border-radius: 999px;
  background: #ef4444;
  color: #fff;
  font-size: 0.68rem;
  line-height: 1;
  font-weight: 900;
  letter-spacing: 0;
  box-shadow: 0 3px 8px rgba(127, 29, 29, 0.32);
}

.vc-chat-unread-badge.hidden {
  display: none;
}

.vc-global-unread-badge {
  display: inline-flex;
  min-width: 1.25rem;
  height: 1.25rem;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0 .3rem;
  border-radius: 999px;
  background: #4f46e5;
  color: #fff;
  font-size: .65rem;
  font-weight: 800;
  line-height: 1;
}

.vc-global-unread-badge.hidden {
  display: none;
}

@media (max-width: 640px) {
  .vc-chat-unread-badge {
    min-width: 1.3rem;
    height: 1.3rem;
    font-size: 0.65rem;
  }
}

/* Secondary pilot pages share the same shell, surfaces and responsive grammar. */
.vc-secondary-page{max-width:1280px}
.vc-page-stack{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem}
.vc-secondary-header{min-height:4.25rem}
.vc-heading-group{display:flex;min-width:0;align-items:center;gap:.75rem}
.vc-back-link{display:inline-flex;width:2.5rem;height:2.5rem;flex:0 0 auto;align-items:center;justify-content:center;border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;color:#475569;transition:background-color .15s,color .15s}
.vc-back-link:hover{background:var(--vc-surface-muted);color:var(--vc-text)}
.vc-back-link svg{width:1.125rem;height:1.125rem}
.vc-section-heading{display:flex;min-height:3.25rem;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--vc-border);padding:.75rem 1rem}
.vc-section-heading h2{font-size:1rem;font-weight:750;color:var(--vc-text)}
.vc-section-heading p,.vc-muted-copy,.vc-empty p{color:var(--vc-muted);font-size:.8125rem;font-weight:500}
.vc-badge-warning{border-color:#fde68a;background:#fffbeb;color:#b45309}

/* Messages */
.messages-page{display:grid;min-height:100dvh;grid-template-rows:auto minmax(0,1fr);gap:1rem}
.messages-layout{display:grid;min-height:0;height:calc(100dvh - 6.25rem);grid-template-columns:minmax(12rem,16rem) minmax(0,1fr);gap:1rem}
.messages-sidebar{min-width:0;padding:.875rem}
.messages-sidebar-heading{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.75rem;padding:0 .25rem}
.messages-sidebar-heading h2{font-size:.875rem;font-weight:750}
.messages-sidebar-heading span{color:var(--vc-muted);font-size:.75rem;font-weight:700}
.messages-student-select{width:100%}
.messages-student-list{display:grid;gap:.25rem}
.messages-student-link{display:flex;align-items:center;justify-content:space-between;gap:.5rem;overflow:hidden;border-radius:var(--vc-radius-sm);padding:.625rem .75rem;color:#475569;font-size:.875rem;font-weight:650;white-space:nowrap}.messages-student-link>span:first-child{overflow:hidden;text-overflow:ellipsis}
.messages-student-link:hover,.messages-student-link.is-active{background:var(--vc-surface-muted);color:var(--vc-text)}
.messages-student-link.is-active{box-shadow:inset 2px 0 0 var(--vc-primary)}
.messages-page .conversation-panel{height:100%;min-height:0}

/* Student and tutor profiles */
.profile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.profile-section{min-width:0;overflow:hidden}
.profile-section-body{padding:1rem}
.profile-security{grid-column:1/-1}
.profile-active-lesson{display:flex;align-items:center;justify-content:space-between;gap:1rem;border-color:#a7f3d0;padding:.875rem 1rem}
.profile-active-title{color:#047857;font-size:.9375rem;font-weight:750}
.profile-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--vc-border);border-radius:var(--vc-radius);overflow:hidden}
.profile-facts>div{min-width:0;padding:.625rem .75rem;background:var(--vc-surface-muted)}
.profile-facts>div+div{border-left:1px solid var(--vc-border)}
.profile-facts dt{color:var(--vc-muted);font-size:.6875rem;font-weight:650}
.profile-facts dd{overflow:hidden;margin:0;color:var(--vc-text);font-size:.875rem;font-weight:700;text-overflow:ellipsis;white-space:nowrap}
.profile-list{display:grid;gap:.5rem}
.profile-list-row{display:flex;min-width:0;align-items:center;justify-content:space-between;gap:.75rem;border-bottom:1px solid var(--vc-border);padding:.625rem 0}
.profile-list-row:first-child{padding-top:0}.profile-list-row:last-child{border-bottom:0;padding-bottom:0}
.profile-list-row p{min-width:0;color:var(--vc-text);font-size:.875rem;font-weight:700}
.profile-list-row span{display:block;color:var(--vc-muted);font-size:.75rem;font-weight:500}
.profile-list-row .profile-live-text{color:var(--vc-success)}
.profile-list-row .vc-btn-chat{width:auto;flex:0 0 auto}
.profile-password-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem}
.profile-password-form button{grid-column:1/-1;justify-self:start}
.profile-test-button{justify-self:start}

/* Tutor account: one restrained settings workspace, not four competing cards. */
.profile-tutor-page{max-width:72rem}
.profile-tutor-workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(20rem,.85fr);overflow:hidden;border-radius:var(--vc-radius)}
.profile-tutor-column{min-width:0}
.profile-tutor-settings-column{border-left:1px solid var(--vc-border)}
.profile-tutor-section{min-width:0;padding:1.125rem 1.25rem}
.profile-tutor-section+.profile-tutor-section{border-top:1px solid var(--vc-border)}
.profile-tutor-section-heading{display:flex;min-width:0;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:.875rem}
.profile-tutor-section-heading h2{color:var(--vc-text);font-size:1rem;font-weight:750;letter-spacing:-.01em}
.profile-tutor-section-heading p{max-width:38rem;margin-top:.15rem;color:var(--vc-muted);font-size:.75rem;font-weight:500;line-height:1.45}
.profile-section-count{display:inline-flex;min-width:1.75rem;height:1.75rem;flex:0 0 auto;align-items:center;justify-content:center;border:1px solid var(--vc-border);border-radius:var(--vc-radius);color:var(--vc-muted);font-size:.75rem;font-weight:750}
.profile-account-form{display:grid;gap:.875rem}
.profile-account-controls{display:grid;grid-template-columns:minmax(0,1fr) max-content;align-items:end;gap:.75rem}
.profile-account-controls .vc-field-label,.profile-tutor-password-form .vc-field-label{display:grid;gap:.3rem}
.profile-account-controls .vc-input,.profile-tutor-password-form .vc-input{width:100%}
.profile-compact-primary{width:auto;min-width:9.5rem;justify-self:start}
.profile-account-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--vc-border);padding-top:.75rem}
.profile-account-facts>div{min-width:0;padding-right:1rem}
.profile-account-facts>div+div{border-left:1px solid var(--vc-border);padding-left:1rem}
.profile-account-facts dt{color:var(--vc-muted);font-size:.6875rem;font-weight:650}
.profile-account-facts dd{overflow:hidden;margin-top:.1rem;color:var(--vc-text);font-size:.875rem;font-weight:700;text-overflow:ellipsis;white-space:nowrap}
.profile-student-list{display:grid}
.profile-student-row{display:grid;grid-template-columns:minmax(0,1fr) max-content;align-items:center;gap:1rem;border-top:1px solid var(--vc-border);padding:.75rem 0}
.profile-student-row:first-child{border-top:0;padding-top:0}
.profile-student-row:last-child{padding-bottom:0}
.profile-student-copy{min-width:0}
.profile-student-heading{display:flex;min-width:0;align-items:center;gap:.625rem}
.profile-student-heading>p{min-width:0;color:var(--vc-text);font-size:.875rem;font-weight:750}
.profile-student-status{display:inline-flex;flex:0 0 auto;align-items:center;gap:.35rem;color:var(--vc-muted);font-size:.6875rem;font-weight:600}
.profile-student-status i{width:.4rem;height:.4rem;border-radius:50%;background:#cbd5e1}
.profile-student-status.is-live{color:#047857}.profile-student-status.is-live i{background:var(--vc-success)}
.profile-student-next{margin-top:.2rem;color:var(--vc-muted);font-size:.75rem;font-weight:500}
.profile-student-row .vc-btn-chat{width:auto;flex:0 0 auto}
.profile-student-empty{padding:.25rem 0}
.profile-settings-list{display:grid}
.profile-setting-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(8.5rem,.8fr);align-items:center;gap:1rem;border-top:1px solid var(--vc-border);padding:.75rem 0}
.profile-setting-row:first-child{border-top:0;padding-top:0}
.profile-setting-row>span{display:grid;gap:.1rem}
.profile-setting-row strong{color:var(--vc-text);font-size:.8125rem;font-weight:700}
.profile-setting-row small{color:var(--vc-muted);font-size:.6875rem;font-weight:500;line-height:1.35}
.profile-setting-row .vc-select{width:100%}
.profile-volume-setting input[type="range"]{width:100%;min-height:1.5rem;margin:0;padding:0;border:0;background:transparent;box-shadow:none;accent-color:var(--vc-primary)}
.profile-setting-actions{display:flex;justify-content:flex-start;border-top:1px solid var(--vc-border);padding-top:.75rem}
.profile-setting-actions .profile-test-button{width:auto}
.profile-tutor-password-form{display:grid;max-width:42rem;grid-template-columns:1fr;gap:.625rem}
.profile-tutor-password-form .profile-compact-primary{margin-top:.125rem}

@media(max-width:899px){
  .profile-tutor-workspace{grid-template-columns:1fr}
  .profile-tutor-settings-column{border-top:1px solid var(--vc-border);border-left:0}
}
@media(max-width:640px){
  .profile-tutor-section{padding:.875rem}
  .profile-account-controls{grid-template-columns:1fr}
  .profile-account-controls .profile-compact-primary,.profile-tutor-password-form .profile-compact-primary{width:100%;justify-self:stretch}
  .profile-account-facts{grid-template-columns:1fr}
  .profile-account-facts>div{padding:.25rem 0}
  .profile-account-facts>div+div{margin-top:.35rem;border-top:1px solid var(--vc-border);border-left:0;padding:.6rem 0 0}
  .profile-student-heading{align-items:flex-start;flex-direction:column;gap:.2rem}
  .profile-student-row{gap:.625rem}
  .profile-student-row .vc-btn-chat{width:auto;align-self:center}
  .profile-setting-row{grid-template-columns:1fr;gap:.5rem}
  .profile-setting-actions .profile-test-button{width:100%}
}

/* Schedule */
.schedule-toolbar{display:grid;gap:.75rem;padding:.875rem 1rem}
.schedule-week-navigation{display:flex;align-items:center;gap:.5rem}
.schedule-week-title{display:grid;min-width:10rem;margin-right:auto}.schedule-week-title strong{color:var(--vc-text);font-size:.9375rem;font-weight:750;font-variant-numeric:tabular-nums}.schedule-week-title span{color:var(--vc-muted);font-size:.6875rem;font-weight:650}
.schedule-icon-button{width:2.5rem;padding:0}
.schedule-filters{display:flex;flex-wrap:wrap;align-items:end;gap:.5rem}.schedule-filters label{display:grid;min-width:9rem;gap:.25rem}.schedule-filters .vc-select{min-height:2.35rem}.schedule-submit{min-height:2.35rem}
.schedule-summary{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;color:var(--vc-muted);font-size:.75rem;font-weight:650}
.schedule-create{overflow:hidden}.schedule-create>summary{cursor:pointer;list-style:none;padding:.75rem 1rem;color:var(--vc-text);font-size:.8125rem;font-weight:750}.schedule-create>summary::-webkit-details-marker{display:none}.schedule-create>summary::marker{content:""}.schedule-create[open]>summary{border-bottom:1px solid var(--vc-border);background:var(--vc-surface-muted)}
.schedule-create-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:1rem}.schedule-create-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:end;gap:.625rem}.schedule-create-form h2{grid-column:1/-1;font-size:.875rem;font-weight:750}.schedule-create-form label{display:grid;gap:.25rem}.schedule-create-form button{justify-self:start}
.schedule-week{overflow:hidden}.schedule-week-scroll{overflow-x:auto;overscroll-behavior-inline:contain}.schedule-week-grid{display:grid;grid-template-columns:repeat(7,minmax(7.5rem,1fr));min-width:52.5rem}
.schedule-day-column{min-width:0;min-height:15rem;border-right:1px solid var(--vc-border);background:#fff}.schedule-day-column:last-child{border-right:0}.schedule-day-column.is-today{background:#f8faff;box-shadow:inset 0 3px 0 #818cf8}
.schedule-day-header{display:flex;width:100%;min-height:3.25rem;align-items:center;justify-content:space-between;gap:.35rem;border-bottom:1px solid var(--vc-border);padding:.625rem;background:transparent;text-align:left}.schedule-day-header:hover{background:rgba(99,102,241,.05)}.schedule-day-header span{color:var(--vc-text);font-size:.8125rem;font-weight:750}.schedule-day-header small{color:var(--vc-muted);font-size:.625rem;font-weight:650}
.schedule-day-lessons{display:grid;align-content:start;gap:.25rem;padding:.4rem}.schedule-lesson.schedule-compact-lesson{display:grid;width:100%;grid-template-columns:.45rem 2.8rem minmax(0,1fr);align-items:center;gap:.3rem;border:1px solid transparent;border-radius:.45rem;padding:.38rem .35rem;background:transparent;text-align:left}.schedule-compact-lesson:hover{border-color:var(--vc-border);background:#fff}.schedule-compact-lesson time{color:var(--vc-text);font-size:.75rem;font-weight:750;font-variant-numeric:tabular-nums}.schedule-compact-lesson>span:last-child{overflow:hidden;color:#475569;font-size:.6875rem;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.schedule-compact-lesson.is-cancelled time,.schedule-compact-lesson.is-cancelled>span:last-child{text-decoration:line-through;opacity:.58}
.schedule-status-dot{width:.4rem;height:.4rem;border-radius:999px;background:#94a3b8}.schedule-status-dot.is-rescheduled{background:#f59e0b}.schedule-status-dot.is-cancelled{background:#ef4444}.schedule-status-dot.is-active{background:#6366f1;box-shadow:0 0 0 3px #e0e7ff}.schedule-status-dot.is-completed{background:#10b981}.schedule-status-dot.is-no_show{background:#f97316}
.schedule-day-details{border-top:1px solid var(--vc-border)}.schedule-day-panel{padding:1rem}.schedule-day-panel[hidden]{display:none}.schedule-day-panel>header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.75rem}.schedule-day-panel>header>div{display:grid}.schedule-day-panel>header strong{font-size:.9375rem;font-weight:750}.schedule-day-panel>header span{color:var(--vc-muted);font-size:.6875rem;font-weight:650}
.schedule-detail-list{display:grid;gap:.5rem}.schedule-detail-lesson{border:1px solid var(--vc-border);border-radius:.55rem;padding:.75rem}.schedule-detail-lesson.is-cancelled{background:#fff8f8}.schedule-detail-main{display:grid;grid-template-columns:7rem minmax(10rem,1fr) minmax(9rem,1fr) auto;align-items:center;gap:.75rem}.schedule-detail-main time{font-size:.875rem;font-weight:800;font-variant-numeric:tabular-nums}.schedule-detail-main>div{display:grid;min-width:0}.schedule-detail-main>div strong{overflow:hidden;font-size:.8125rem;font-weight:750;text-overflow:ellipsis;white-space:nowrap}.schedule-detail-main>div span{color:var(--vc-muted);font-size:.6875rem;font-weight:600}
.schedule-status{white-space:nowrap}.schedule-status.is-scheduled{border-color:#cbd5e1;background:#f8fafc;color:#475569}.schedule-status.is-rescheduled{border-color:#fde68a;background:#fffbeb;color:#b45309}.schedule-status.is-cancelled{border-color:#fecaca;background:#fef2f2;color:#b91c1c}.schedule-status.is-active{border-color:#c7d2fe;background:#eef2ff;color:#4338ca}.schedule-status.is-completed{border-color:#a7f3d0;background:#ecfdf5;color:#047857}.schedule-status.is-no_show{border-color:#fed7aa;background:#fff7ed;color:#c2410c}
.schedule-conflict{margin-top:.5rem;color:#b45309;font-size:.6875rem;font-weight:650}.schedule-actions{display:flex;flex-wrap:wrap;align-items:flex-start;gap:.375rem;margin-top:.625rem}.schedule-actions form{display:flex}.schedule-inline-action{position:relative}.schedule-inline-action>summary{cursor:pointer;list-style:none}.schedule-inline-action>summary::-webkit-details-marker{display:none}.schedule-inline-action>summary::marker{content:""}.schedule-inline-action[open]{flex-basis:100%}.schedule-inline-action[open]>summary{width:max-content}.schedule-inline-action>form{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));align-items:end;gap:.5rem;margin-top:.5rem;border:1px solid var(--vc-border);border-radius:.5rem;padding:.625rem;background:var(--vc-surface-muted)}.schedule-inline-action label{display:grid;gap:.2rem}.schedule-inline-action label>span{color:var(--vc-muted);font-size:.625rem;font-weight:700}
.schedule-one-off,.users-role-tutor{border-color:#c7d2fe;background:#eef2ff;color:#4338ca}

/* Admin */
.admin-workspace{overflow:hidden}
.admin-section+.admin-section{border-top:1px solid var(--vc-border)}
.admin-section-summary{display:flex;min-height:4rem;cursor:pointer;list-style:none;align-items:center;justify-content:space-between;gap:1rem;padding:.875rem 1rem}
.admin-section-summary::-webkit-details-marker{display:none}.admin-section-summary::marker{content:""}
.admin-section-summary>span{display:grid;gap:.1rem}.admin-section-summary strong{font-size:1rem;font-weight:750}.admin-section-summary small{color:var(--vc-muted);font-size:.75rem;font-weight:500}
.admin-section-chevron{width:1.125rem;height:1.125rem;flex:0 0 auto;color:var(--vc-muted);transition:transform .15s ease}.admin-section[open]>.admin-section-summary .admin-section-chevron{transform:rotate(180deg)}
.admin-section-body{border-top:1px solid var(--vc-border);padding:1rem}
.admin-section-primary>.admin-section-summary{min-height:4.5rem;border-left:3px solid var(--vc-primary);background:#fafaff;padding-left:calc(1rem - 3px)}
.admin-section-primary>.admin-section-summary strong{font-size:1.0625rem}.admin-section-primary>.admin-section-body{padding:1.125rem}
.admin-section-secondary>.admin-section-summary{background:var(--vc-surface-muted)}
.admin-assignments-layout{display:grid;grid-template-columns:minmax(17rem,21rem) minmax(0,1fr);gap:1.25rem}
.admin-form{display:grid;align-content:start;gap:.75rem}.admin-form-heading{min-width:0}.admin-form-heading h2,.admin-subheading h2{font-size:.875rem;font-weight:750}.admin-form-heading p{margin-top:.15rem;color:var(--vc-muted);font-size:.75rem;font-weight:500}
.admin-field{display:grid;min-width:0;gap:.3rem}.admin-field>span{color:var(--vc-muted);font-size:.6875rem;font-weight:700;letter-spacing:.04em}.admin-field input,.admin-field select{width:100%}
.admin-submit{justify-self:start}
.admin-table-section{min-width:0}.admin-subheading{display:flex;min-height:2.5rem;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--vc-border);padding:0 .75rem}.admin-subheading span{color:var(--vc-muted);font-size:.75rem;font-weight:700}
.admin-table-wrap{min-width:0;overflow-x:auto}.admin-table th,.admin-table td{padding:.625rem .75rem}.admin-table td{color:#475569;font-size:.8125rem}.admin-table td strong{color:var(--vc-text)}.admin-action-column{text-align:right!important}.admin-action-column form{display:inline-flex}.admin-compact-action{min-height:2rem;padding:.45rem .65rem;font-size:.75rem}.admin-empty{padding:2rem!important;text-align:center;color:var(--vc-muted)!important}
.admin-bindings-toolbar{display:grid;grid-template-columns:minmax(16rem,1fr) auto max-content;align-items:center;gap:.75rem;margin-bottom:.75rem}.admin-bindings-search{min-width:0}.admin-bindings-filters{display:flex;gap:.35rem}.admin-bindings-filters .vc-btn-secondary[aria-pressed="true"]{border-color:#a5b4fc;background:#eef2ff;color:#4338ca}.admin-bindings-summary{color:var(--vc-muted);font-size:.75rem;font-weight:650;white-space:nowrap}
.admin-bindings-list{overflow:hidden;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:#fff}.admin-binding-row+.admin-binding-row{border-top:1px solid var(--vc-border)}.admin-binding-row[hidden]{display:none}.admin-binding-main{display:grid;min-height:3.5rem;grid-template-columns:minmax(11rem,.8fr) minmax(0,1.5fr) auto;align-items:center;gap:.75rem;padding:.45rem .75rem}.admin-binding-row.is-editing .admin-binding-main{background:var(--vc-surface-muted)}
.admin-binding-student{display:grid;min-width:0}.admin-binding-student strong{overflow:hidden;color:var(--vc-text);font-size:.8125rem;font-weight:750;text-overflow:ellipsis;white-space:nowrap}.admin-binding-student small{overflow:hidden;color:var(--vc-muted);font-size:.6875rem;text-overflow:ellipsis;white-space:nowrap}.admin-binding-tutors{display:flex;min-width:0;flex-wrap:nowrap;gap:.3rem;overflow:hidden}.admin-tutor-chip,.admin-tutor-empty{display:inline-flex;max-width:13rem;flex:0 1 auto;align-items:center;border:1px solid #cbd5e1;border-radius:999px;padding:.2rem .5rem;color:#475569;font-size:.6875rem;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-tutor-empty{border-style:dashed;color:#94a3b8}.admin-binding-edit{min-height:2.1rem;padding:.4rem .65rem;font-size:.75rem}
.admin-binding-editor{border-top:1px solid var(--vc-border);padding:.75rem;background:#fafafa}.admin-binding-editor[hidden]{display:none}.admin-binding-editor fieldset{display:grid;gap:.5rem}.admin-binding-editor legend{color:#475569;font-size:.75rem;font-weight:750}.admin-tutor-options{display:flex;flex-wrap:wrap;gap:.4rem}.admin-tutor-option{position:relative;cursor:pointer}.admin-tutor-option input{position:absolute;opacity:0;pointer-events:none}.admin-tutor-option span{display:inline-flex;min-height:2rem;align-items:center;border:1px solid #cbd5e1;border-radius:999px;padding:.35rem .65rem;background:#fff;color:#475569;font-size:.75rem;font-weight:650}.admin-tutor-option input:focus-visible+span{outline:2px solid #818cf8;outline-offset:2px}.admin-tutor-option input:checked+span{border-color:#818cf8;background:#eef2ff;color:#4338ca}.admin-binding-actions{display:flex;gap:.5rem;margin-top:.75rem}.admin-binding-actions button{min-height:2.2rem;padding:.45rem .75rem;font-size:.75rem}
.admin-lesson-workspace{background:#fff}.admin-lesson-form{grid-template-columns:minmax(8.5rem,.8fr) minmax(11rem,1.35fr) minmax(8.5rem,.95fr) minmax(7.25rem,.65fr) minmax(8.5rem,.75fr) minmax(11rem,1.15fr) auto;align-items:end;column-gap:.625rem;row-gap:.75rem}.admin-lesson-heading{grid-column:1/-1;padding-bottom:.125rem}.admin-lesson-actions{display:flex;justify-content:flex-end}.admin-lesson-actions .vc-btn-primary{min-width:9.5rem}
.admin-settings-form{display:grid;grid-template-columns:minmax(0,1fr) 8rem auto;align-items:end;gap:.75rem}.admin-minutes-field{width:8rem}.admin-settings-submit{align-self:end}

/* Users */
.users-toolbar{padding:.875rem}
.users-toolbar-grid{display:grid;grid-template-columns:minmax(16rem,1fr) 11rem auto max-content;align-items:center;gap:.75rem}
.users-search,.users-role-filter{width:100%;min-width:0}
.users-summary{display:flex;flex-wrap:nowrap;justify-content:flex-end;gap:.75rem;color:var(--vc-muted);white-space:nowrap}
.users-summary>div{display:flex;align-items:baseline;gap:.25rem}
.users-summary dt{font-size:.6875rem;font-weight:600}.users-summary dd{margin:0;color:var(--vc-text);font-size:.875rem;font-weight:750}
.users-create-button{width:max-content;max-width:14rem;justify-self:end}
.users-surface{position:relative;overflow:visible}.users-table-wrap{overflow:visible}
.user-table th,.user-table td{padding:.65rem .875rem}.user-table td{vertical-align:middle}
.users-row-actions{display:inline-flex;align-items:center;justify-content:flex-end;gap:.5rem}
.users-self-action{min-height:2.25rem;padding:.5rem .7rem;color:#94a3b8}
.users-menu-button{display:inline-flex;width:2.25rem;height:2.25rem;align-items:center;justify-content:center;border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;color:#64748b;font-size:1rem;font-weight:750}.users-menu-button:hover{background:var(--vc-surface-muted);color:var(--vc-text)}
.users-action-menu{position:absolute;right:0;top:2.65rem;z-index:30;width:12rem;border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;padding:.25rem;text-align:left;box-shadow:0 8px 20px rgba(15,23,42,.1)}
.users-edit-form{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:center;gap:.5rem}.users-edit-wide{grid-column:span 2}.users-checkbox-row{display:flex;min-height:var(--vc-control-height);align-items:center;gap:.5rem;border:1px solid var(--vc-border);border-radius:var(--vc-radius);background:#fff;padding:0 .75rem;color:#475569;font-size:.75rem;font-weight:650}.users-edit-actions{display:flex;justify-content:flex-end;gap:.5rem}
.vc-modal{position:fixed;inset:0;z-index:50;align-items:center;justify-content:center;padding:1rem;background:rgba(2,6,23,.55)}
.vc-modal-dialog{width:100%;max-width:32rem;overflow:hidden;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:#fff;box-shadow:0 16px 40px rgba(15,23,42,.18)}
.vc-modal-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--vc-border);padding:1rem 1.25rem;background:#fff;color:var(--vc-text)}

@media(max-width:1199px){
  .admin-lesson-form{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-lesson-actions{justify-content:flex-start}
}
@media(max-width:1023px){
  .schedule-lesson{grid-template-columns:6.5rem minmax(0,1fr) minmax(0,1fr)}
  .schedule-actions{grid-column:1/-1;justify-content:flex-start}
  .schedule-create-grid{grid-template-columns:1fr}.schedule-detail-main{grid-template-columns:6.5rem minmax(9rem,1fr) minmax(8rem,1fr) auto}
  .admin-lesson-form{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-lesson-actions{grid-column:1/-1;justify-content:flex-start}
  .admin-bindings-toolbar{grid-template-columns:minmax(0,1fr) auto}.admin-bindings-summary{grid-column:1/-1}
  .users-toolbar-grid{grid-template-columns:minmax(0,1fr) 11rem}.users-summary{justify-content:flex-start}.users-create-button{justify-self:end}
  .users-edit-form{grid-template-columns:repeat(2,minmax(0,1fr))}.users-edit-actions{grid-column:1/-1;justify-content:flex-start}
}
@media(max-width:767px){
  .messages-page{display:block;min-height:100dvh}
  .messages-page .vc-secondary-header{margin-bottom:.75rem}
  .messages-layout{height:auto;grid-template-columns:1fr;grid-template-rows:auto minmax(34rem,68dvh);gap:.75rem}
  .messages-page .conversation-panel{min-height:34rem}
  .profile-grid{grid-template-columns:1fr}
  .profile-security{grid-column:auto}
  .profile-password-form{grid-template-columns:1fr}
  .profile-password-form button{grid-column:auto;justify-self:stretch}
  .schedule-week-grid{grid-auto-flow:column;grid-auto-columns:minmax(15rem,78vw);grid-template-columns:none;min-width:max-content}.schedule-day-column{scroll-snap-align:start}.schedule-week-scroll{scroll-snap-type:x proximity}.schedule-day-header small{display:inline}
  .schedule-create-form{grid-template-columns:1fr}.schedule-detail-main{grid-template-columns:1fr 1fr}.schedule-detail-main>div:nth-child(3),.schedule-detail-main>.schedule-status{grid-column:1/-1}.schedule-day-panel{padding:.75rem}
  .schedule-actions{grid-column:1/-1}
  .admin-assignments-layout{grid-template-columns:1fr}.admin-settings-form{grid-template-columns:minmax(0,1fr) 8rem}.admin-settings-form .admin-form-heading{grid-column:1/-1}.admin-settings-submit{justify-self:start}
  .admin-table thead{display:none}.admin-table,.admin-table tbody,.admin-table tr,.admin-table td{display:block;width:100%}.admin-table tr{border-bottom:1px solid var(--vc-border);padding:.625rem .75rem}.admin-table td{padding:.3rem 0;border:0;text-align:left!important}.admin-table td[data-label]::before{content:attr(data-label);display:block;margin-bottom:.1rem;color:#94a3b8;font-size:.625rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.admin-action-column form{display:flex}.admin-compact-action{width:auto}
  .user-table{min-width:0!important}
  .user-table thead{display:none}
  .user-table,.user-table tbody,.user-table tr,.user-table td{display:block;width:100%}
  .user-table tr{border-bottom:1px solid var(--vc-border);padding:.625rem .75rem}
  .user-table tr.hidden{display:none!important}
  .user-table td{padding:.35rem 0;border:0}
  .user-table td[data-label]::before{content:attr(data-label);display:block;margin-bottom:.1rem;color:#94a3b8;font-size:.625rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}
  .user-table .user-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:.65rem 1rem;padding:.875rem}
  .user-table .user-row>td{width:auto;min-width:0;padding:0}
  .user-table .user-row>td:first-child{grid-column:1/-1;grid-row:1}
  .user-table .user-row>td:nth-child(2){grid-column:1;grid-row:2}
  .user-table .user-row>td:nth-child(3){grid-column:1/-1;grid-row:3}
  .user-table .user-row>td:nth-child(4){grid-column:2;grid-row:2}
  .user-table .user-row>td:last-child{grid-column:1/-1;grid-row:4;text-align:left}
  .user-table .user-row[data-role="admin"]>td:nth-child(3),.user-table .user-row[data-role="tutor"]>td:nth-child(3){display:none}
  .user-table .user-row[data-role="admin"]>td:last-child,.user-table .user-row[data-role="tutor"]>td:last-child{grid-row:3}
  .users-row-actions{display:flex;justify-content:flex-start}.users-action-menu{right:auto;left:0}
}
@media(max-width:640px){
  .vc-secondary-header{min-height:3.75rem;flex-direction:row;align-items:center;padding:.625rem .75rem}
  .vc-heading-group{flex:1 1 auto;overflow:hidden;gap:.5rem}.vc-back-link{width:2.25rem;height:2.25rem}
  .vc-secondary-header .vc-page-title{font-size:1.125rem}
  .vc-secondary-header .vc-kicker{display:none}
  .profile-active-lesson{align-items:flex-start;flex-direction:column}
  .profile-active-lesson .vc-btn-primary{width:100%}
  .profile-facts{grid-template-columns:1fr}.profile-facts>div+div{border-top:1px solid var(--vc-border);border-left:0}
  .schedule-week-navigation{flex-wrap:wrap}.schedule-week-title{order:-1;width:100%}.schedule-filters{display:grid;grid-template-columns:1fr}.schedule-submit{width:100%}
  .schedule-actions{display:grid;grid-template-columns:1fr}.schedule-actions form,.schedule-actions a,.schedule-actions button{width:100%}
  .admin-section-summary{padding:.75rem}.admin-section-primary>.admin-section-summary{padding-left:calc(.75rem - 3px)}.admin-section-body,.admin-section-primary>.admin-section-body{padding:.75rem}.admin-lesson-form{grid-template-columns:1fr}.admin-lesson-actions{grid-column:auto}.admin-lesson-actions,.admin-lesson-actions .vc-btn-primary{width:100%}.admin-settings-form{grid-template-columns:1fr}.admin-minutes-field{width:100%}.admin-settings-submit{width:100%}
  .admin-bindings-toolbar{grid-template-columns:1fr}.admin-bindings-filters{width:100%}.admin-bindings-filters button{flex:1}.admin-bindings-summary{grid-column:auto}.admin-binding-main{grid-template-columns:minmax(0,1fr) auto}.admin-binding-tutors{grid-column:1/-1;grid-row:2}.admin-binding-edit{grid-column:2;grid-row:1}.admin-tutor-options{display:grid;grid-template-columns:1fr}.admin-tutor-option span{width:100%}.admin-binding-actions{display:grid;grid-template-columns:1fr 1fr}
  .users-toolbar-grid{grid-template-columns:1fr}
  .users-summary{width:100%;justify-content:space-between}
  .users-create-button{width:100%;max-width:none;justify-self:stretch}
  .users-edit-form{grid-template-columns:1fr}.users-edit-wide,.users-edit-actions{grid-column:auto}.users-edit-actions{display:grid;grid-template-columns:1fr 1fr}.users-row-actions .vc-btn-secondary,.user-table .vc-btn-chat{width:auto}
}