:root{
  /* Palette — academic indigo with a gold "achievement" accent */
  --ink:#16203B;
  --primary:#283A6B;        /* deep indigo */
  --primary-700:#1E2C52;
  --primary-900:#141E3A;
  --accent:#E0992B;         /* gold */
  --accent-soft:#FBF1DD;
  --bg:#EEF1F7;
  --surface:#FFFFFF;
  --surface-2:#F7F8FB;
  --muted:#6B7385;
  --line:#E3E7EF;
  --ok:#1B9E5A;
  --warn:#D98A1F;
  --danger:#D6453B;
  --info:#2C6FCB;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(20,30,58,.05), 0 8px 24px -12px rgba(20,30,58,.18);
  --shadow-sm:0 1px 2px rgba(20,30,58,.06);
  --sidebar-w:248px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,.cm-display{font-family:'Sora',sans-serif;letter-spacing:-.01em}
a{text-decoration:none}

/* ---------- Bootstrap palette overrides ---------- */
.btn-primary{--bs-btn-bg:var(--primary);--bs-btn-border-color:var(--primary);--bs-btn-hover-bg:var(--primary-700);--bs-btn-hover-border-color:var(--primary-700);--bs-btn-active-bg:var(--primary-900)}
.btn-outline-primary{--bs-btn-color:var(--primary);--bs-btn-border-color:var(--primary);--bs-btn-hover-bg:var(--primary);--bs-btn-hover-border-color:var(--primary)}
.text-primary{color:var(--primary)!important}
.btn-accent{background:var(--accent);border:1px solid var(--accent);color:#3a2700;font-weight:600}
.btn-accent:hover{background:#cc8721;color:#3a2700}
.text-bg-primary{background:var(--primary)!important}
a.link-primary,.link-primary{color:var(--primary)}
.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 .2rem rgba(40,58,107,.15)}
.badge.text-bg-secondary{background:#8A93A6!important}

/* ---------- Shell ---------- */
.app-shell{display:flex;min-height:100vh}
.cm-main{flex:1;min-width:0;display:flex;flex-direction:column}

/* ---------- Sidebar ---------- */
.cm-sidebar{
  width:var(--sidebar-w);background:linear-gradient(185deg,var(--primary-900),var(--primary-700));
  color:#cdd4e6;display:flex;flex-direction:column;flex-shrink:0;
}
@media(min-width:992px){
  .cm-sidebar{position:sticky;top:0;height:100vh;visibility:visible!important;transform:none!important}
}
.cm-brand{display:flex;align-items:center;gap:12px;padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.cm-brand-mark{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--accent);color:var(--primary-900);font-family:'Sora';font-weight:800;font-size:18px;flex-shrink:0;
}
.cm-brand-text{display:flex;flex-direction:column;line-height:1.15}
.cm-brand-text strong{color:#fff;font-family:'Sora';font-size:1.02rem}
.cm-brand-text small{color:#93a0c4;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase}
.cm-nav{list-style:none;margin:0;padding:12px 10px;overflow-y:auto;flex:1}
.cm-nav-section{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:#7a87ad;padding:18px 12px 6px}
.cm-nav-link{
  display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;
  color:#c2cae0;font-weight:500;font-size:.92rem;margin-bottom:2px;transition:.15s;
}
.cm-nav-link i{font-size:1.05rem;width:20px;text-align:center}
.cm-nav-link:hover{background:rgba(255,255,255,.07);color:#fff}
.cm-nav-link.active{background:var(--accent);color:var(--primary-900);font-weight:600}
.cm-sidebar-foot{padding:14px 18px;border-top:1px solid rgba(255,255,255,.08)}
.cm-school{font-size:.74rem;color:#8e9bbf;line-height:1.3}

/* ---------- Topbar ---------- */
.cm-topbar{
  position:sticky;top:0;z-index:20;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;
  padding:12px 22px;min-height:62px;
}
.cm-topbar-title{font-family:'Sora';font-weight:600;font-size:1.08rem}
.cm-burger{border:1px solid var(--line);background:#fff;font-size:1.2rem;line-height:1;padding:4px 9px}
.cm-user{display:flex;align-items:center;gap:10px;border:0;background:transparent;padding:4px 6px}
.cm-user::after{margin-left:2px;color:var(--muted)}
.cm-avatar{
  width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:600;font-size:.82rem;flex-shrink:0;font-family:'Sora';
}
.cm-user-name{display:block;font-weight:600;font-size:.86rem;line-height:1.1;text-align:left}
.cm-user-role{display:block;color:var(--muted);font-size:.72rem;text-align:left}

/* ---------- Content ---------- */
.cm-content{padding:24px;flex:1;max-width:1280px;width:100%;margin:0 auto}
@media(max-width:575px){.cm-content{padding:16px}}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.page-head h1{font-size:1.5rem;font-weight:700;margin:0}
.page-head .sub{color:var(--muted);font-size:.9rem;margin-top:2px}

/* ---------- Cards ---------- */
.card{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);background:var(--surface)}
.card-header{background:transparent;border-bottom:1px solid var(--line);font-family:'Sora';font-weight:600;padding:14px 18px}
.card-body{padding:18px}
.section-title{font-family:'Sora';font-weight:600;font-size:1rem;margin:0 0 2px}

/* KPI cards */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.kpi .kpi-icon{position:absolute;right:-6px;top:-6px;font-size:3.4rem;opacity:.07;color:var(--primary)}
.kpi .kpi-label{color:var(--muted);font-size:.8rem;font-weight:500;text-transform:uppercase;letter-spacing:.04em}
.kpi .kpi-value{font-family:'Sora';font-weight:700;font-size:1.9rem;line-height:1.1;margin-top:6px}
.kpi .kpi-foot{font-size:.78rem;color:var(--muted);margin-top:4px}
.kpi.accent{background:linear-gradient(135deg,var(--primary),var(--primary-700));color:#fff;border:0}
.kpi.accent .kpi-label{color:#c5cee6}
.kpi.accent .kpi-foot{color:#aebad9}
.kpi.accent .kpi-icon{color:#fff;opacity:.14}

/* ---------- Tables ---------- */
.table{--bs-table-bg:transparent;margin:0;vertical-align:middle}
.table thead th{font-family:'Sora';font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);white-space:nowrap}
.table tbody td{border-bottom:1px solid var(--line)}
.table-hover tbody tr:hover{background:var(--surface-2)}
.table-wrap{overflow-x:auto;border-radius:var(--radius)}
.stu-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:inline-grid;place-items:center;font-size:.72rem;font-weight:700;font-family:'Sora';margin-right:8px}

/* progress mini bar */
.minibar{height:8px;border-radius:6px;background:var(--line);overflow:hidden;min-width:80px}
.minibar > span{display:block;height:100%;border-radius:6px}

/* ---------- Buttons / chips ---------- */
.btn{border-radius:var(--radius-sm);font-weight:500}
.btn-sm{border-radius:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:.8rem;color:var(--ink)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* segmented attendance buttons */
.att-seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.att-seg input{display:none}
.att-seg label{padding:7px 12px;font-size:.82rem;cursor:pointer;margin:0;color:var(--muted);font-weight:600;border-right:1px solid var(--line)}
.att-seg label:last-of-type{border-right:0}
.att-seg input:checked + label.p{background:var(--ok);color:#fff}
.att-seg input:checked + label.a{background:var(--danger);color:#fff}
.att-seg input:checked + label.l{background:var(--warn);color:#fff}
.att-seg input:checked + label.e{background:var(--info);color:#fff}

/* ---------- Footer ---------- */
.cm-footer{border-top:1px solid var(--line);background:var(--surface);margin-top:auto}
.cm-footer-inner{max-width:1280px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:center;gap:12px}
.cm-footer-text{color:var(--muted);font-size:.85rem}
.cm-footer-logo{height:22px;width:auto}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;
  background:radial-gradient(1200px 600px at 80% -10%,rgba(224,153,43,.12),transparent),
             linear-gradient(160deg,var(--primary-900),var(--primary-700))}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:18px;box-shadow:0 24px 60px -20px rgba(0,0,0,.5);overflow:hidden}
.login-head{padding:30px 30px 8px;text-align:center}
.login-mark{width:56px;height:56px;border-radius:15px;background:var(--accent);color:var(--primary-900);display:inline-grid;place-items:center;font-family:'Sora';font-weight:800;font-size:24px;margin-bottom:14px}
.login-head h1{font-size:1.4rem;margin:0}
.login-head p{color:var(--muted);font-size:.86rem;margin:4px 0 0}
.login-body{padding:20px 30px 26px}
.login-foot{padding:14px;border-top:1px solid var(--line);text-align:center;background:var(--surface-2)}
.login-foot img{height:20px;opacity:.85}

/* utilities */
.text-muted-2{color:var(--muted)}
.fw-sora{font-family:'Sora'}
.empty-state{text-align:center;padding:48px 20px;color:var(--muted)}
.empty-state i{font-size:2.6rem;opacity:.4;display:block;margin-bottom:10px}
.stat-pill{font-family:'Sora';font-weight:700}
.divider-dot::before{content:"·";margin:0 6px;color:var(--muted)}
@media(max-width:991px){:root{--sidebar-w:0px}}