/* ============================================================
   Global Education Technology Pte Ltd — Enterprise Management System
   Hand-written design system (no build step). Mobile-first.
   ============================================================ */
:root{
  --brand:#cc232a; --brand-600:#b01d23; --brand-050:#fef2f2;
  --navy:#505e85;  --navy-900:#16203a; --navy-800:#1d2a4a; --navy-700:#27365c;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --muted-2:#94a3b8;
  --bg:#f1f5f9; --surface:#fff; --border:#e2e8f0; --border-2:#cbd5e1;
  --green:#15803d; --green-bg:#dcfce7; --amber:#b45309; --amber-bg:#fef3c7;
  --red:#b91c1c;   --red-bg:#fee2e2;  --blue:#1d4ed8;  --blue-bg:#dbeafe;
  --slate-bg:#f1f5f9; --violet:#6d28d9; --violet-bg:#ede9fe;
  --radius:10px; --radius-lg:14px; --radius-sm:6px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.08);
  --shadow-lg:0 10px 25px -5px rgba(15,23,42,.18);
  --sidebar-w:250px; --topbar-h:60px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-decoration:none}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}
h1{font-size:22px} h2{font-size:18px} h3{font-size:16px}
p{margin:0 0 10px}
code,kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border:1px solid var(--border-2);
  background:var(--surface);color:var(--ink-2);border-radius:var(--radius-sm);font-size:13.5px;font-weight:550;cursor:pointer;
  transition:.15s;white-space:nowrap;font-family:inherit;line-height:1.2}
.btn:hover{background:#f8fafc;border-color:var(--muted-2);color:var(--ink)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.btn-navy{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.btn-navy:hover{background:var(--navy-800);border-color:var(--navy-800);color:#fff}
.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn-ghost:hover{background:#e2e8f0;color:var(--ink)}
.btn-danger{background:#fff;border-color:#fca5a5;color:var(--red)}
.btn-danger:hover{background:var(--red-bg)}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn-lg{padding:11px 22px;font-size:15px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.55;pointer-events:none}

/* ---------- forms ---------- */
.form-row{margin-bottom:14px}
.form-row label,.label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:5px}
.label .req{color:var(--brand)}
.input,select.input,textarea.input{width:100%;padding:9px 11px;border:1px solid var(--border-2);border-radius:var(--radius-sm);
  font-size:14px;font-family:inherit;background:#fff;color:var(--ink);transition:.15s}
.input:focus,select.input:focus,textarea.input:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(80,94,133,.14)}
.input::placeholder{color:var(--muted-2)}
textarea.input{resize:vertical;min-height:80px;line-height:1.5}
select.input{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 8px center;background-size:16px;padding-right:30px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
.field-error{font-size:12px;color:var(--red);margin-top:4px}
.grid-2{display:grid;grid-template-columns:1fr;gap:0 16px}
.grid-3{display:grid;grid-template-columns:1fr;gap:0 16px}
@media(min-width:700px){.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:1fr 1fr 1fr}}
.grid-4{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(min-width:900px){.grid-4{grid-template-columns:repeat(4,1fr)}}
.checkbox{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);cursor:pointer}
.checkbox input{width:16px;height:16px;accent-color:var(--brand)}

/* ---------- layout ---------- */
.app{min-height:100vh}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);background:var(--navy-900);color:#cbd5e1;
  display:flex;flex-direction:column;z-index:60;transform:translateX(-100%);transition:transform .22s ease}
.sidebar.open{transform:none}
@media(min-width:1024px){.sidebar{transform:none}.main{margin-left:var(--sidebar-w)}}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:16px 16px;border-bottom:1px solid rgba(255,255,255,.08);min-height:var(--topbar-h)}
.sidebar-brand img{width:32px;height:32px;border-radius:6px;background:#fff;padding:2px;object-fit:contain;flex:none}
.sidebar-brand .t{font-size:14px;font-weight:700;color:#fff;line-height:1.2}
.sidebar-brand .s{font-size:10.5px;color:#94a3b8;letter-spacing:.04em;text-transform:uppercase}
.sidebar-nav{flex:1;overflow-y:auto;padding:10px 8px}
.sidebar-nav::-webkit-scrollbar{width:6px}
.sidebar-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15);border-radius:3px}
.nav-group{margin:14px 0 6px;padding:0 10px;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#64748b;font-weight:600}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:8px;color:#cbd5e1;font-size:13.5px;
  font-weight:500;margin-bottom:2px;transition:.13s}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-item.active{background:var(--brand);color:#fff;font-weight:600}
.nav-item .ico{width:18px;text-align:center;flex:none;opacity:.9;font-size:15px}
.nav-item .cnt{margin-left:auto;background:rgba(255,255,255,.14);border-radius:9px;padding:1px 7px;font-size:11px;font-weight:600}
.nav-item.active .cnt{background:rgba(255,255,255,.25)}
.sidebar-foot{padding:12px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:11px;color:#64748b}
.main{min-height:100vh;display:flex;flex-direction:column}
.topbar{height:var(--topbar-h);background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;
  gap:12px;padding:0 14px;position:sticky;top:0;z-index:40}
.topbar .burger{display:inline-flex;background:none;border:none;font-size:20px;cursor:pointer;color:var(--ink-2);padding:4px 6px}
@media(min-width:1024px){.topbar .burger{display:none}}
.topbar-search{flex:1;max-width:420px;position:relative}
.topbar-search input{width:100%;padding:8px 12px 8px 32px;border:1px solid var(--border);border-radius:20px;font-size:13px;background:var(--bg)}
.topbar-search input:focus{outline:none;border-color:var(--navy);background:#fff}
.topbar-search .mag{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted-2);font-size:13px}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:6px}
.icon-btn{position:relative;background:none;border:none;width:34px;height:34px;border-radius:8px;cursor:pointer;font-size:16px;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center}
.icon-btn:hover{background:var(--bg)}
.icon-btn .dot{position:absolute;top:5px;right:5px;min-width:16px;height:16px;background:var(--brand);color:#fff;border-radius:8px;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;padding:0 4px}
.user-chip{display:flex;align-items:center;gap:9px;padding:4px 8px 4px 4px;border-radius:20px;cursor:pointer;border:1px solid transparent;background:none;font-family:inherit}
.user-chip:hover{background:var(--bg);border-color:var(--border)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--navy-900);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;flex:none}
.user-chip .nm{font-size:13px;font-weight:600;color:var(--ink);line-height:1.1;text-align:left}
.user-chip .rl{font-size:10.5px;color:var(--muted)}
@media(max-width:640px){.user-chip .nm,.user-chip .rl{display:none}}
.content{padding:18px 14px 60px;flex:1;max-width:1500px;width:100%;margin:0 auto}
@media(min-width:768px){.content{padding:24px 22px 70px}}
.page-head{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.page-head .t h1{margin-bottom:2px}
.page-head .t p{color:var(--muted);font-size:13px;margin:0}
.page-head .actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:6px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:55;display:none}
.overlay.show{display:block}
@media(min-width:1024px){.overlay.show{display:none}}

/* ---------- cards / stats ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.card-head{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
.card-head h2,.card-head h3{font-size:15px}
.card-head .actions{margin-left:auto;display:flex;gap:6px}
.card-body{padding:16px}
.card-body.tight{padding:10px 14px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:15px 16px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat .lbl{font-size:12px;color:var(--muted);font-weight:550;display:flex;align-items:center;gap:6px}
.stat .val{font-size:26px;font-weight:700;letter-spacing:-.02em;margin-top:5px;line-height:1.1}
.stat .sub{font-size:11.5px;color:var(--muted-2);margin-top:3px}
.stat .bar{position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}
.stat.is-navy .bar{background:var(--navy)}
.stat.is-green .bar{background:var(--green)}
.stat.is-amber .bar{background:var(--amber)}
.stat.is-red .bar{background:var(--red)}
.stat.is-blue .bar{background:var(--blue)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th{text-align:left;padding:10px 12px;background:#f8fafc;border-bottom:1px solid var(--border);
  font-size:11.5px;font-weight:650;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;position:sticky;top:0}
table.tbl td{padding:11px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
table.tbl tbody tr:hover{background:#f8fafc}
table.tbl tbody tr:last-child td{border-bottom:none}
table.tbl .num{text-align:right;font-variant-numeric:tabular-nums}
table.tbl .nowrap{white-space:nowrap}
table.tbl .strong{font-weight:600;color:var(--ink)}
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.empty .ic{font-size:34px;opacity:.35;margin-bottom:8px}
.empty p{margin:0 0 12px;font-size:13.5px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:600;white-space:nowrap;line-height:1.6}
.badge.green{background:var(--green-bg);color:var(--green)}
.badge.amber{background:var(--amber-bg);color:var(--amber)}
.badge.red{background:var(--red-bg);color:var(--red)}
.badge.blue{background:var(--blue-bg);color:var(--blue)}
.badge.gray{background:var(--slate-bg);color:var(--muted)}
.badge.violet{background:var(--violet-bg);color:var(--violet)}
.badge.brand{background:var(--brand-050);color:var(--brand)}
.tag{display:inline-block;padding:1px 8px;border-radius:5px;background:var(--slate-bg);color:var(--ink-2);font-size:11.5px;margin:0 3px 3px 0}

/* ---------- misc ---------- */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar .sp{margin-left:auto}
.pager{display:flex;gap:6px;align-items:center;justify-content:center;padding:14px 0 4px;flex-wrap:wrap}
.pager a,.pager span{padding:5px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;background:#fff}
.pager .cur{background:var(--navy-900);color:#fff;border-color:var(--navy-900);font-weight:600}
.pager .dis{opacity:.45;pointer-events:none}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--border);margin-bottom:18px;overflow-x:auto}
.tabs a{padding:9px 15px;font-size:13.5px;font-weight:550;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a:hover{color:var(--ink)}
.tabs a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:650}
.alert{padding:11px 14px;border-radius:var(--radius);font-size:13.5px;margin-bottom:16px;border:1px solid;display:flex;gap:9px;align-items:flex-start}
.alert .ic{flex:none;font-size:15px;line-height:1.4}
.alert-info{background:var(--blue-bg);border-color:#bfdbfe;color:#1e40af}
.alert-warn{background:var(--amber-bg);border-color:#fde68a;color:#92400e}
.alert-err{background:var(--red-bg);border-color:#fecaca;color:#991b1b}
.alert-ok{background:var(--green-bg);border-color:#bbf7d0;color:#166534}
.kv{display:grid;grid-template-columns:130px 1fr;gap:0;font-size:13.5px}
.kv dt{padding:7px 0;color:var(--muted);font-size:12.5px;border-bottom:1px solid var(--border)}
.kv dd{padding:7px 0;margin:0;border-bottom:1px solid var(--border);color:var(--ink);word-break:break-word}
.kv dt:nth-last-of-type(1),.kv dd:nth-last-of-type(1){border-bottom:none}
@media(max-width:600px){.kv{grid-template-columns:1fr}.kv dt{border-bottom:none;padding-bottom:0}.kv dd{padding-top:0}}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--border)}
.tl-item{position:relative;padding-bottom:18px}
.tl-item::before{content:"";position:absolute;left:-22px;top:5px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid var(--navy)}
.tl-item.is-done::before{background:var(--green);border-color:var(--green)}
.tl-item.is-overdue::before{background:var(--red);border-color:var(--red)}
.tl-item .when{font-size:11.5px;color:var(--muted);font-weight:600}
.tl-item .what{font-size:13.5px;margin-top:2px}
.tl-item .meta{font-size:12px;color:var(--muted);margin-top:3px}
.dropdown{position:absolute;right:10px;top:calc(var(--topbar-h) - 6px);background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:210px;padding:6px;z-index:50;display:none}
.dropdown.show{display:block}
.dropdown a,.dropdown button{display:flex;align-items:center;gap:9px;width:100%;padding:8px 11px;border-radius:6px;
  font-size:13.5px;color:var(--ink-2);background:none;border:none;text-align:left;cursor:pointer;font-family:inherit}
.dropdown a:hover,.dropdown button:hover{background:var(--bg);color:var(--ink)}
.dropdown .sep{height:1px;background:var(--border);margin:5px 0}
.money{font-variant-numeric:tabular-nums;white-space:nowrap}
.money.pos{color:var(--green)} .money.neg{color:var(--red)}
.progress{height:6px;background:var(--slate-bg);border-radius:4px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--brand)}

/* ---------- auth pages ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:26px 16px;
  background:linear-gradient(140deg,var(--navy-900) 0%,var(--navy-800) 45%,#2b1c22 100%)}
.auth-card{width:100%;max-width:430px;background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);overflow:hidden}
.auth-card.wide{max-width:560px}
.auth-head{padding:26px 28px 20px;text-align:center;border-bottom:1px solid var(--border)}
.auth-head img{width:54px;height:54px;object-fit:contain;margin-bottom:10px}
.auth-head h1{font-size:19px;margin-bottom:3px}
.auth-head p{color:var(--muted);font-size:12.5px;margin:0}
.auth-head .brandline{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);font-weight:650;margin-bottom:6px}
.auth-body{padding:22px 28px 26px}
.auth-foot{padding:13px 28px 18px;background:#f8fafc;text-align:center;font-size:12.5px;color:var(--muted);border-top:1px solid var(--border)}
.auth-foot a{font-weight:600}
.auth-links{display:flex;justify-content:space-between;font-size:12.5px;margin-top:14px}

/* ---------- Education CRM ---------- */
.sec-title{font-size:14px;font-weight:700;color:var(--ink);margin:0 0 12px;padding-left:10px;border-left:3px solid var(--brand);letter-spacing:0}
.nav-sub{margin:1px 0 1px 10px;padding-left:12px;border-left:1px solid rgba(255,255,255,.1)}
.nav-sub .nav-item{font-size:12.5px;padding:6px 10px;color:#a8b3c7}
.nav-sub .nav-item .ico{font-size:13px;width:16px}
.nav-sub .nav-item.active{background:var(--brand);color:#fff}
.chk{display:flex;align-items:flex-start;gap:11px;padding:9px 2px;border-bottom:1px solid var(--border)}
.chk:last-child{border-bottom:none}
.chk-box{width:22px;height:22px;flex:none;border:1.5px solid var(--border-2);border-radius:6px;background:#fff;cursor:pointer;
  color:#fff;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center;padding:0;transition:.15s}
.chk-box:hover{border-color:var(--navy)}
.chk.is-done .chk-box{background:var(--green);border-color:var(--green)}
.chk.is-done .chk-label{color:var(--muted);text-decoration:line-through}
.chk-body{flex:1;min-width:0}
.chk-label{font-size:13.5px;font-weight:550}
.chk-meta{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:4px}
.bar-mini{height:5px;background:var(--slate-bg);border-radius:3px;overflow:hidden;margin-top:4px;min-width:60px}
.bar-mini > span{display:block;height:100%;background:var(--brand);border-radius:3px}
.funnel-bar{position:absolute;left:0;top:0;bottom:0;border-radius:6px;background:var(--brand)}
.funnel-bar.brand{background:var(--brand)}
.funnel-bar.navy{background:var(--navy)}
.funnel-bar.amber{background:#b4690e}
.funnel-bar.green{background:var(--green)}
.wa-box{background:#f8fafc;border:1px solid var(--border);border-radius:var(--radius);padding:13px}
.wa-box textarea.input{font-size:13px;min-height:70px}
@media print{.sidebar,.topbar,.no-print{display:none!important}.main{margin:0}.content{padding:0;max-width:none}}