:root{--ch-bg:#f2f1f6;--ch-surface:#fff;--ch-surface-2:#f7f5fc;--ch-overlay:#ffffffdb;--ch-text:#1a1a2e;--ch-text-2:#8a8a94;--ch-hairline:#11111a1a;--ch-accent:#6b5bab;--ch-accent-weak:#6b5bab1f;--ch-danger:#c0392b;--ch-r-card:18px;--ch-r-field:12px;--ch-r-pill:999px;--ch-gap:12px;--ch-pad:14px;--ch-feed-max:720px;--ch-shadow:0 1px 2px #11111a0f, 0 8px 24px -18px #11111a59;--ch-spring:cubic-bezier(.22, 1.4, .36, 1)}@media (prefers-color-scheme:dark){html:not(.night){--ch-bg:#0f0f14;--ch-surface:#1a1a21;--ch-surface-2:#23232c;--ch-overlay:#1a1a21db;--ch-text:#f2f2f5;--ch-text-2:#a0a0ac;--ch-hairline:#ffffff1f;--ch-accent-weak:#8c7ad638;--ch-shadow:none}}.ch-chatpane{min-height:0;height:var(--ch-pane-h,60vh);background:var(--ch-bg);flex-direction:column;display:flex}.ch-scroll{overscroll-behavior:contain;gap:var(--ch-gap);min-height:0;max-width:var(--ch-feed-max);box-sizing:border-box;flex-direction:column;flex:1;width:100%;margin:0 auto;padding:8px 12px 12px;display:flex;overflow-y:auto}.ch-scroll>:first-child{margin-top:auto}.ch-scroll>*{flex-shrink:0}.ch-unreaddiv{color:var(--ch-accent,#6b5bab);grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;margin:2px 0;font-size:12px;font-weight:700;display:grid}.ch-unreaddiv:before,.ch-unreaddiv:after{content:"";background:var(--ch-hairline);height:1px}.ch-todown{z-index:6;border:1px solid var(--ch-hairline);background:var(--ch-surface);width:42px;height:42px;color:var(--ch-text);cursor:pointer;border-radius:50%;font-size:18px;position:absolute;bottom:84px;right:16px;box-shadow:0 6px 18px #11111a2e}.ch-todown-badge{background:var(--ch-accent,#6b5bab);color:#fff;border-radius:999px;min-width:20px;height:20px;padding:0 5px;font-size:11px;font-weight:700;line-height:20px;position:absolute;top:-6px;right:-6px}.ch-feed{gap:var(--ch-gap);max-width:var(--ch-feed-max);padding-bottom:max(16px, env(safe-area-inset-bottom));margin:0 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10px;font-size:13px;display:inline-flex}.ch-reaction:active{transform:scale(.94)}.ch-reaction--mine{background:var(--ch-accent-weak);color:var(--ch-accent);border-color:#0000;font-weight:700}@keyframes chPop{0%{transform:scale(1)}45%{transform:scale(1.25)}to{transform:scale(1)}}.ch-reaction--pop{animation:chPop .26s var(--ch-spring)}.ch-daydiv{z-index:5;border-radius:var(--ch-r-pill);color:var(--ch-text-2);background:var(--ch-overlay);border:1px solid var(--ch-hairline);-webkit-backdrop-filter:saturate(180%)blur(14px);align-self:center;padding:4px 12px;font-size:12px;font-weight:600;position:sticky;top:8px}.ch-pinned{border-radius:var(--ch-r-field);background:var(--ch-surface-2);border:1px solid var(--ch-hairline);color:var(--ch-text);cursor:pointer;align-items:center;gap:8px;padding:8px 12px;font-size:13px;display:flex}:root{--ch-topbar-h:52px}.ch-topbar{z-index:20;height:calc(var(--ch-topbar-h) + env(safe-area-inset-top));box-sizing:border-box;padding:8px 12px;padding-top:max(8px, 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12px;font-family:inherit;font-size:15px}@media (prefers-reduced-motion:reduce){.ch-seg__thumb,.ch-switch,.ch-switch__knob,.ch-ctx-target{transition:none!important}.ch-ctx{animation:none!important}.ch-large{transition:none!important}}.ch-screen{background:var(--ch-bg);min-height:100%}.ch-tabbody{max-width:var(--ch-feed-max);margin:0 auto;padding:14px 16px 40px}.ch-tabbody.ch-tabbody--flush{max-width:none;padding:0}.ch-screen .ch-large{max-width:var(--ch-feed-max);margin:0 auto}@media (min-width:900px){.ch-screen .ch-topbar{padding-left:24px;padding-right:24px}.ch-large{padding-left:0;padding-right:0}}.ch-post__text--clamp{-webkit-line-clamp:8;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.ch-totop{right:18px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:30;border:1px solid var(--ch-hairline);background:var(--ch-overlay);-webkit-backdrop-filter:saturate(180%)blur(14px);width:44px;height:44px;color:var(--ch-text);cursor:pointer;animation:chCtxIn .18s var(--ch-spring);border-radius:50%;font-size:19px;position:fixed;box-shadow:0 6px 20px #11111a2e}.ch-newposts{top:calc(var(--ch-topbar-h) + env(safe-area-inset-top) + 8px);z-index:18;cursor:pointer;border-radius:var(--ch-r-pill);background:var(--ch-accent);color:#fff;animation:chCtxIn .2s var(--ch-spring);border:none;align-self:center;padding:7px 16px;font-size:13px;font-weight:700;position:sticky;box-shadow:0 6px 20px #6b5bab5c}.ch-feed>div>.ch-post{content-visibility:auto;contain-intrinsic-size:auto 320px}.ch-cta{z-index:40;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:var(--ch-overlay);border-top:1px solid var(--ch-hairline);-webkit-backdrop-filter:saturate(180%)blur(20px);position:fixed;bottom:0;left:0;right:0}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.ch-cta{background:var(--ch-surface)}}.ch-cta__inner{align-items:center;gap:12px;max-width:760px;margin:0 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#11111a73}.ch-composer__inner{max-width:var(--ch-feed-max);width:100%;padding:6px 12px calc(6px + env(safe-area-inset-bottom));box-sizing:border-box;margin:0 auto}.ch-file__ico{background:var(--ch-accent);color:#fff;letter-spacing:.4px;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:40px;font-size:9.5px;font-weight:800;display:inline-flex}.ch-screen .ch-totop{bottom:calc(20px + env(safe-area-inset-bottom))}:is(body:has(.ch-screen) .cm-support-launcher,body:has(.ch-screen) .cm-support-panel){bottom:calc(78px + env(safe-area-inset-bottom))}@media (max-width:720px){body:has(.ch-screen) .cm-support-launcher{bottom:calc(132px + env(safe-area-inset-bottom))}}
.dashboard-shell{background-color:#0000;background-image:radial-gradient(1100px 520px at 100% -8%,#7565a81a,#0000 60%),radial-gradient(900px 480px at -6% 0,#a7c1ff1a,#0000 55%),linear-gradient(#fbfbfe 0%,#f3f2f9 100%);background-position:0 0,0 0,0 0;background-repeat:repeat,repeat,repeat;background-size:auto,auto,auto;background-attachment:fixed;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box}.dashboard-sidebar{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:linear-gradient(#ffffffe0,#faf9fdcc);border-right:1px solid #786caa1f}.dashboard-sidebar .dash-logo .mark{box-shadow:0 6px 16px -3px #7565a88c,inset 0 1px #fff6}.dashboard-nav a{border-radius:10px}.dashboard-nav a:hover{background:#7565a812}.dashboard-nav a.active{color:var(--violet-700);background:linear-gradient(135deg,#7565a829,#7565a812);font-weight:600;box-shadow:inset 0 0 0 1px #7565a81f}.dashboard-sidebar .user-card{border-radius:var(--r-md);box-shadow:var(--shadow-md);background:linear-gradient(#fff,#fbfafe);border-color:#786caa1f}.dashboard-shell .dash-title{letter-spacing:-.03em;font-size:19px;font-weight:700}.dashboard-shell .stat,.dashboard-shell .tbl,.dashboard-shell .analytics-card,.dashboard-shell .analytics-stat-card,.dashboard-shell .finance-stat-card,.dashboard-shell .empty-state{border-radius:var(--r-md);box-shadow:var(--shadow-md);border-color:#786caa1a}.dashboard-shell .stat,.dashboard-shell .analytics-stat-card{transition:transform .16s var(--ease), box-shadow .16s var(--ease)}.dashboard-shell .stat:hover,.dashboard-shell .analytics-stat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.dashboard-shell .stat .v{letter-spacing:-.03em;font-size:22px}.dashboard-shell .btn-violet,.dashboard-main .btn-violet{background:linear-gradient(135deg, var(--violet-500), var(--violet-600))}.dashboard-sidebar .user-upgrade-btn{background:linear-gradient(135deg, var(--violet-600), var(--violet-700))}.dashboard-shell .chip{border-radius:999px}
.student-form{flex-direction:column;gap:24px;max-width:840px;display:flex}.form-section{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}.form-section-head{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.form-section-head h2{letter-spacing:-.015em;color:var(--ink);margin:0;font-size:17px;font-weight:500}.form-section-head .sub{color:var(--muted);margin-top:4px;font-size:13px}.form-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.form-grid.cols-3{grid-template-columns:repeat(3,1fr)}.form-grid.full>*{grid-column:1/-1}.form-field{flex-direction:column;gap:6px;display:flex}.form-field.full{grid-column:1/-1}.form-field label{color:var(--ink-2);letter-spacing:-.005em;align-items:center;gap:6px;font-size:13px;font-weight:500;display:flex}.form-field label .required{color:var(--violet-600);font-weight:600}.form-field input,.form-field select,.form-field textarea{font:inherit;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-md);color:var(--ink);transition:all .2s var(--ease);width:100%;padding:10px 12px;font-size:14px}.form-field textarea{resize:vertical;min-height:88px;font-family:inherit;line-height:1.5}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--violet-500);background:var(--surface);outline:none;box-shadow:0 0 0 3px #7565a81f}.form-field input::placeholder,.form-field textarea::placeholder{color:var(--muted-2)}.form-field input.error,.form-field select.error,.form-field textarea.error{background:#fef2f2;border-color:#dc2626}.form-field .field-hint{color:var(--muted);font-size:12px}.form-field .field-error{color:#dc2626;font-size:12px;font-weight:500}.form-actions{justify-content:flex-end;gap:12px;padding-top:8px;display:flex}.form-actions .btn{justify-content:center;min-width:120px}.form-error-banner{color:#991b1b;border-radius:var(--r-md);background:#fef2f2;border:1px solid #fca5a5;align-items:flex-start;gap:10px;padding:12px 16px;font-size:14px;display:flex}.form-error-banner .ico{flex-shrink:0;margin-top:2px}.form-error-banner strong{margin-bottom:2px;display:block}.form-error-banner a{color:var(--violet-600);font-weight:500;text-decoration:none}.form-error-banner a:hover{text-decoration:underline}.form-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.form-header .form-title h1{letter-spacing:-.025em;margin:0;font-size:24px;font-weight:500}.form-header .form-title .sub{color:var(--muted);margin-top:4px;font-size:13px}.back-link{color:var(--muted);transition:all .15s var(--ease);border-radius:8px;align-items:center;gap:6px;margin-bottom:4px;margin-left:-10px;padding:6px 10px;font-size:13px;text-decoration:none;display:inline-flex}.back-link:hover{background:var(--bg-soft);color:var(--ink)}.toggle-group{gap:8px;display:grid}.toggle-group.cols-2{grid-template-columns:1fr 1fr}.toggle-group.cols-3{grid-template-columns:repeat(3,1fr)}.toggle-group.cols-4{grid-template-columns:repeat(4,1fr)}.toggle-option{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-md);cursor:pointer;color:var(--ink-2);transition:all .2s var(--ease);-webkit-user-select:none;user-select:none;align-items:center;gap:8px;padding:10px 14px;font-size:13px;font-weight:500;display:flex}.toggle-option input[type=radio]{display:none}.toggle-option:hover{border-color:var(--violet-300)}.toggle-option.checked{background:var(--violet-50);border-color:var(--violet-500);color:var(--violet-700);box-shadow:0 0 0 1px var(--violet-500)}.toggle-option .check-icon{border:1.5px solid var(--muted-2);width:14px;height:14px;transition:all .15s var(--ease);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.toggle-option.checked .check-icon{border-color:var(--violet-500);background:var(--violet-500)}.toggle-option.checked .check-icon:after{content:"";background:#fff;border-radius:50%;width:6px;height:6px}@media (max-width:720px){.form-grid,.form-grid.cols-3{grid-template-columns:1fr}.toggle-group.cols-3,.toggle-group.cols-4{grid-template-columns:1fr 1fr}}.student-detail{flex-direction:column;gap:22px;display:flex}.student-header-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);align-items:center;gap:20px;padding:28px;display:flex}.student-header-card .av{color:#fff;border-radius:50%;flex-shrink:0;place-items:center;width:64px;height:64px;font-size:22px;font-weight:600;display:grid}.student-header-card .info{flex:1;min-width:0}.student-header-card h1{letter-spacing:-.025em;margin:0 0 6px;font-size:26px;font-weight:500}.student-header-card .meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;display:flex}.student-header-card .meta .dot{background:var(--muted-2);border-radius:50%;width:3px;height:3px}.student-header-card .actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.student-info-grid{grid-template-columns:2fr 1fr;gap:22px;display:grid}.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}.info-card h3{letter-spacing:.02em;text-transform:uppercase;color:var(--muted);margin:0 0 18px;font-size:14px;font-weight:600}.info-rows{gap:14px;display:grid}.info-row{grid-template-columns:140px 1fr;align-items:start;gap:16px;font-size:14px;display:grid}.info-row .k{color:var(--muted);font-size:13px}.info-row .v{color:var(--ink);word-break:break-word;font-weight:500}.info-row .v.empty{color:var(--muted-2);font-style:italic;font-weight:400}.info-row .v a{color:var(--violet-600);text-decoration:none}.info-row .v a:hover{text-decoration:underline}@media (max-width:880px){.student-info-grid{grid-template-columns:1fr}.info-row{grid-template-columns:1fr;gap:4px}}@media (max-width:720px){.student-header-card{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px 14px;padding:18px;display:grid}.student-header-card .av{width:52px;height:52px;font-size:18px}.student-header-card h1{overflow-wrap:anywhere;margin-bottom:4px;font-size:20px}.student-header-card .meta{gap:8px;font-size:12.5px}.student-header-card .actions,.student-header-card .header-actions-mobile{grid-column:1/-1;min-width:0}.student-header-card .actions{flex-wrap:wrap;gap:8px;display:flex}}.status-pill{border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.status-pill.active{color:#1e6b3a;background:#ecf8f0;border:1px solid #d6efde}.status-pill.pause{color:#8a5a00;background:#fef6e7;border:1px solid #fbe7bd}.status-pill.archived{background:var(--bg-soft);color:var(--muted);border:1px solid var(--line)}.payment-pill{border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.payment-pill.paid{color:#1e6b3a;background:#ecf8f0;border:1px solid #d6efde}.payment-pill.debt{color:#991b1b;background:#fef2f2;border:1px solid #fca5a5}.payment-pill.prepaid{background:var(--violet-50);color:var(--violet-700);border:1px solid var(--violet-100)}.filter-tabs{background:var(--surface);border:1px solid var(--line);border-radius:10px;gap:2px;padding:4px;display:inline-flex}.filter-tabs a{color:var(--muted);transition:all .15s var(--ease);white-space:nowrap;border-radius:7px;padding:6px 14px;font-size:12.5px;font-weight:500;text-decoration:none}.filter-tabs a:hover{color:var(--ink-2)}.filter-tabs a.active{background:var(--violet-50);color:var(--violet-700)}.modal-backdrop{-webkit-backdrop-filter:blur(4px);z-index:100;animation:fadeIn .15s var(--ease);background:#0b0b128c;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal-card{background:var(--surface);border-radius:var(--r-xl);width:100%;max-width:480px;box-shadow:var(--shadow-lg);animation:scaleIn .2s var(--ease);padding:32px}.modal-card .modal-icon{color:#dc2626;background:#fef2f2;border-radius:12px;place-items:center;width:48px;height:48px;margin-bottom:16px;display:grid}.modal-card h2{letter-spacing:-.02em;margin:0 0 8px;font-size:20px;font-weight:500}.modal-card p{color:var(--muted);margin:0 0 24px;font-size:14.5px;line-height:1.5}.modal-card p strong{color:var(--ink);font-weight:500}.modal-options{flex-direction:column;gap:10px;margin:0 0 24px;display:flex}.modal-option{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-soft);color:var(--ink-2);padding:14px 16px;font-size:13.5px;line-height:1.45}.modal-option strong{color:var(--ink);font-weight:500}.modal-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.btn-danger{color:#fff;background:#dc2626;box-shadow:inset 0 1px #fff3,0 6px 18px -6px #dc262673}.btn-danger:hover{background:#b91c1c}.btn-danger[disabled],.btn-danger.disabled{background:var(--line);color:var(--muted-2);box-shadow:none;cursor:not-allowed}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}