:root{
  --bg:#0f0f10;
  --card:#18181a;
  --border:#2a2a2d;
  --text:#f7f7f7;
  --muted:#b7b7b9;
  --brand:#ff6600;
}
*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,sans-serif;
}
.top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 22px;
  border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.25);
  position:sticky;
  top:0;
  backdrop-filter: blur(8px);
}
.brand .logo{font-weight:800;letter-spacing:.5px}
.brand .sub{color:var(--muted);font-size:.9rem}
.nav{display:flex;gap:10px}
.wrap{max-width:1200px;margin:0 auto;padding:22px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px;
  box-shadow:0 10px 25px rgba(0,0,0,.35);
}

/* Login */
.login-card{max-width:420px;margin:0 auto;text-align:center}
.login-form{align-items:center}
.login-form label{width:100%;max-width:220px;text-align:left}
input.pin{
  text-align:center;
  letter-spacing:.35em;
  font-size:1.3rem;
  padding:12px 14px;
}
.login-btn{width:100%;max-width:220px}
.login-logo{margin-top:18px;display:flex;justify-content:center}
.login-logo-img{
  width:260px;
  max-width:80vw;
  height:auto;
  filter:
    drop-shadow(0 0 10px rgba(255,102,0,.35))
    drop-shadow(0 0 26px rgba(255,102,0,.40));
  opacity:.98;
}
h1{margin:0 0 10px;font-size:1.6rem}
.muted{color:var(--muted)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:var(--text);
  text-decoration:none;
  font-weight:700;
}
.btn.primary{
  border:none;
  background:linear-gradient(180deg,#ff7a1f 0%, #ff6600 60%, #c94f00 100%);
  color:#111;
  box-shadow:0 6px 18px rgba(255,102,0,.35);
}
.form{display:flex;flex-direction:column;gap:12px;margin-top:14px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:700}
input, textarea{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:var(--text);
  outline:none;
}
input:focus, textarea:focus{border-color:rgba(255,102,0,.8)}
.grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:12px}
.grid label{margin:0}
.full{grid-column:1 / -1}
.checkbox{flex-direction:row !important;gap:10px;align-items:center;font-weight:700}
.checkbox input{width:18px;height:18px}
.flash{margin-bottom:14px}
.flash-item{background:rgba(255,77,79,.15);border:1px solid rgba(255,77,79,.35);padding:10px 12px;border-radius:12px}
.table-wrap{overflow:auto;margin-top:12px}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{padding:10px 10px;border-bottom:1px solid var(--border);vertical-align:top}
th{color:var(--muted);text-align:left;position:sticky;top:0;background:var(--card);z-index:2}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9rem}
.foot{padding:20px 22px;color:var(--muted);border-top:1px solid var(--border)}

/* Calendar */
.cal-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap;margin-bottom:10px}
.cal-actions{display:flex;gap:10px;flex-wrap:wrap}
table.cal th, table.cal td{border-bottom:1px solid var(--border)}
.cal-time{min-width:64px;position:sticky;left:0;background:var(--card);z-index:3;border-right:1px solid var(--border)}
.cal-cell{min-width:120px}
.cal-day{display:flex;flex-direction:column;gap:2px}
.cal-day-name{font-weight:800;color:var(--text)}
.cal-day-date{color:var(--muted)}
.cal-booked{border:1px solid rgba(255,102,0,.35);background:rgba(255,102,0,.12);border-radius:12px;padding:10px}
.cal-booked-main{font-weight:900}
.cal-booked-sub{color:var(--muted);font-size:.9rem;margin-top:2px}
.cal-free{color:rgba(255,255,255,.35);font-size:.9rem}

@media (max-width: 720px){
  .grid{grid-template-columns:1fr}
  .nav{flex-wrap:wrap;justify-content:flex-end}
}