:root{
  --bg-0:#05060f; --bg-1:#0b0f24; --bg-2:#111737;
  --glass:rgba(255,255,255,.05); --glass-2:rgba(255,255,255,.08);
  --stroke:rgba(255,255,255,.10);
  --txt:#e8ecff; --muted:#8b94c2;
  --cyan:#00e5ff; --violet:#a855f7; --pink:#ec4899;
  --good:#22e3a1; --warn:#ffb020; --bad:#ff4d6d;
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--txt); background:var(--bg-0); min-height:100vh; overflow-x:hidden;
  background-image:
    radial-gradient(1200px 600px at 90% -10%, rgba(168,85,247,.25), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(0,229,255,.20), transparent 60%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
}
h1,h2,h3,.brand-title,.kpi-value{font-family:'Space Grotesk',sans-serif;letter-spacing:.2px}
h3{margin:0 0 14px;font-size:1rem;color:#cfd6ff}

/* Background FX */
.bg-grid{
  position:fixed; inset:0; pointer-events:none; z-index:0; opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 50% 30%, black 40%, transparent 90%);
}
.bg-orbs{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.bg-orbs span{position:absolute;border-radius:50%;filter:blur(80px);opacity:.35;animation:float 20s ease-in-out infinite}
.bg-orbs span:nth-child(1){width:340px;height:340px;background:var(--cyan);top:-80px;left:-80px}
.bg-orbs span:nth-child(2){width:400px;height:400px;background:var(--violet);bottom:-120px;right:-100px;animation-delay:-6s}
.bg-orbs span:nth-child(3){width:260px;height:260px;background:var(--pink);top:40%;left:55%;animation-delay:-12s}
@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-40px) scale(1.08)}}

/* Layout */
.sidebar{
  position:fixed; inset:0 auto 0 0; width:250px; padding:22px 16px;
  background:rgba(8,10,26,.72); backdrop-filter:blur(18px);
  border-right:1px solid var(--stroke); z-index:20; display:flex; flex-direction:column;
}
.main{margin-left:250px;padding:24px 28px 60px;position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:.3s;width:260px}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding:16px}
}

/* Brand */
.brand{display:flex;gap:12px;align-items:center;margin-bottom:28px}
.brand.center{flex-direction:column;text-align:center}
.brand-mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#05060f;font-weight:800;font-family:'Space Grotesk';font-size:15px;
  box-shadow:0 0 24px rgba(0,229,255,.45)
}
.brand-mark.large{width:64px;height:64px;font-size:22px;border-radius:18px}
.brand-title{font-weight:700;font-size:1.05rem}
.brand-sub{font-size:.72rem;color:var(--muted);letter-spacing:.16em;text-transform:uppercase}

/* Nav */
nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{
  display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:12px;
  color:#c9d2ff;text-decoration:none;font-size:.9rem;font-weight:500;
  transition:.2s;border:1px solid transparent;
}
.nav-item:hover{background:var(--glass);border-color:var(--stroke);transform:translateX(2px)}
.nav-item.active{
  background:linear-gradient(90deg, rgba(0,229,255,.14), rgba(168,85,247,.14));
  border-color:rgba(0,229,255,.35); color:#fff;
  box-shadow:inset 0 0 0 1px rgba(0,229,255,.15), 0 0 24px rgba(0,229,255,.12);
}
.nav-item.danger{color:#ff9bb0}
.side-foot{margin-top:auto;border-top:1px solid var(--stroke);padding-top:12px}
.user-chip{display:flex;gap:10px;align-items:center;padding:8px 10px;margin-bottom:6px}
.avatar{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--violet),var(--pink));font-weight:700;color:#fff}
.u-name{font-size:.85rem;font-weight:600}
.u-role{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}

/* Topbar */
.topbar{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.topbar h1{font-size:1.6rem;margin:0;flex:1;
  background:linear-gradient(90deg,#fff,#b8c4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.burger{display:none;background:none;color:#fff;border:none;font-size:24px;cursor:pointer}
@media(max-width:900px){.burger{display:block}}
.clock{font-family:'Space Grotesk';color:var(--muted);font-size:.85rem;letter-spacing:.05em}

/* Cards */
.card{
  background:var(--glass); border:1px solid var(--stroke); border-radius:var(--radius);
  padding:20px; backdrop-filter:blur(14px); margin-bottom:20px;
  box-shadow:0 12px 40px rgba(0,0,0,.35);
}
.card.accent{border-color:rgba(0,229,255,.35)}
.card.good{border-color:rgba(34,227,161,.35)}
.card.warn{border-color:rgba(255,176,32,.35)}
.card.center{text-align:center}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:20px}
.kpi{padding:18px}
.kpi-label{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em}
.kpi-value{font-size:2rem;font-weight:700;margin-top:6px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.card.accent .kpi-value{background:linear-gradient(135deg,#00e5ff,#7dd3fc);-webkit-background-clip:text}
.card.good .kpi-value{background:linear-gradient(135deg,#22e3a1,#a7f3d0);-webkit-background-clip:text}
.card.warn .kpi-value{background:linear-gradient(135deg,#ffb020,#fde68a);-webkit-background-clip:text}

.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:14px}

/* Tables */
.table-card{overflow-x:auto;padding:14px 0}
table.data{width:100%;border-collapse:collapse;font-size:.88rem}
table.data th,table.data td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--stroke)}
table.data th{color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;font-weight:600}
table.data tr:hover td{background:rgba(255,255,255,.03)}
.code{font-family:'Space Grotesk';background:rgba(0,229,255,.10);color:#9be9ff;padding:2px 8px;border-radius:6px;font-size:.75rem}
.muted{color:var(--muted)} .small{font-size:.75rem}
.center{text-align:center}
.row-actions{white-space:nowrap;text-align:right}

/* Pills */
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.72rem;letter-spacing:.05em;text-transform:capitalize;
  background:var(--glass-2);border:1px solid var(--stroke);color:#cfd6ff}
.pill.active,.pill.approved,.pill.present{background:rgba(34,227,161,.14);border-color:rgba(34,227,161,.4);color:#8ef0c8}
.pill.pending,.pill.planned,.pill.late{background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.4);color:#ffd585}
.pill.dropped,.pill.rejected,.pill.absent,.pill.inactive,.pill.suspended{background:rgba(255,77,109,.14);border-color:rgba(255,77,109,.4);color:#ff9bb0}
.pill.validated,.pill.graduated,.pill.completed,.pill.active.pill-inactive{background:rgba(0,229,255,.14);border-color:rgba(0,229,255,.4);color:#9be9ff}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:10px;border:1px solid var(--stroke);
  background:var(--glass);color:#e8ecff;text-decoration:none;font-size:.85rem;font-weight:500;cursor:pointer;
  transition:.2s;font-family:inherit
}
.btn:hover{background:var(--glass-2);transform:translateY(-1px)}
.btn.primary{background:linear-gradient(135deg,var(--cyan),var(--violet));border:none;color:#05060f;font-weight:600;
  box-shadow:0 8px 24px rgba(0,229,255,.25)}
.btn.primary:hover{box-shadow:0 12px 30px rgba(168,85,247,.35)}
.btn.danger{background:rgba(255,77,109,.15);border-color:rgba(255,77,109,.4);color:#ff9bb0}
.btn.good{background:rgba(34,227,161,.15);border-color:rgba(34,227,161,.4);color:#8ef0c8}
.btn.tiny{padding:6px 10px;font-size:.75rem}
.btn.big{width:100%;padding:14px;font-size:.95rem;justify-content:center}

.icon-btn{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;background:transparent;border:1px solid transparent;
  color:#cfd6ff;cursor:pointer;transition:.2s;text-decoration:none}
.icon-btn:hover{background:var(--glass);border-color:var(--stroke)}
.icon-btn.danger{color:#ff9bb0}

/* Forms */
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.filters{display:flex;gap:10px;flex-wrap:wrap}
input,select,textarea{
  background:rgba(0,0,0,.25);border:1px solid var(--stroke);border-radius:10px;padding:10px 12px;
  color:var(--txt);font-family:inherit;font-size:.88rem;width:100%;transition:.2s
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,229,255,.15)}
label{display:flex;flex-direction:column;gap:6px;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid.compact{grid-template-columns:1fr 1fr}
.form-grid .full{grid-column:1/-1}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:10px;margin-top:6px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(2,4,12,.72);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal.show{display:flex}
.modal-box{width:100%;max-width:640px;background:linear-gradient(180deg,rgba(20,24,50,.95),rgba(10,14,32,.98));
  border:1px solid var(--stroke);border-radius:20px;padding:22px;max-height:92vh;overflow:auto;
  box-shadow:0 30px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(0,229,255,.08) inset}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}

/* Segmented (attendance) */
.segmented{display:inline-flex;border:1px solid var(--stroke);border-radius:10px;overflow:hidden}
.seg{flex-direction:row;padding:6px 10px;cursor:pointer;font-size:.75rem;letter-spacing:0;text-transform:none;
  border-right:1px solid var(--stroke);color:var(--muted);transition:.15s}
.seg:last-child{border-right:none}
.seg input{display:none}
.seg input:checked + span{color:#fff}
.seg.present:has(input:checked){background:rgba(34,227,161,.25)}
.seg.late:has(input:checked){background:rgba(255,176,32,.25)}
.seg.excused:has(input:checked){background:rgba(0,229,255,.25)}
.seg.absent:has(input:checked){background:rgba(255,77,109,.25)}
.quick-actions{display:flex;gap:8px;margin-bottom:12px}

/* Feed */
.feed{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.feed li{display:flex;gap:10px;align-items:flex-start;font-size:.85rem}
.pulse{width:10px;height:10px;border-radius:50%;background:var(--cyan);margin-top:6px;flex-shrink:0;
  box-shadow:0 0 0 0 rgba(0,229,255,.7);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,229,255,.6)}70%{box-shadow:0 0 0 12px rgba(0,229,255,0)}100%{box-shadow:0 0 0 0 rgba(0,229,255,0)}}

/* Charts */
.chart-card canvas{max-height:240px}

/* Toast */
.toast{padding:12px 16px;border-radius:12px;margin-bottom:16px;background:var(--glass);border:1px solid var(--stroke);font-size:.88rem}
.toast.success{border-color:rgba(34,227,161,.4);background:rgba(34,227,161,.10);color:#a7f3d0}
.toast.warn{border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.10);color:#fde68a}
.toast.error{border-color:rgba(255,77,109,.4);background:rgba(255,77,109,.10);color:#ffc0cd}

/* Footer */
.foot{margin-top:auto;text-align:center;color:var(--muted);font-size:.78rem;padding-top:24px}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--good);margin:0 6px;vertical-align:middle;
  box-shadow:0 0 10px var(--good)}

/* Auth */
.auth-body{display:grid;place-items:center;min-height:100vh;padding:20px}
.auth-card{
  position:relative;z-index:2;width:100%;max-width:420px;
  background:linear-gradient(180deg,rgba(20,24,50,.85),rgba(10,14,32,.95));
  border:1px solid var(--stroke);border-radius:24px;padding:34px 28px;
  box-shadow:0 40px 100px rgba(0,0,0,.6), 0 0 0 1px rgba(0,229,255,.08) inset;
  backdrop-filter:blur(20px);
}
.auth-card form{display:flex;flex-direction:column;gap:16px;margin-top:20px}
.auth-foot{margin-top:20px;text-align:center;color:var(--muted);font-size:.75rem;letter-spacing:.05em}