.admin-page{background:var(--paper)}.admin-page .admin-sidebar{position:fixed;inset:0 auto 0 0;width:245px;z-index:2}.admin-page .admin-wrap,.admin-page .form-wrap{width:auto;max-width:none;margin:0 0 0 245px;padding:54px 5%}.admin-page .admin-head{align-items:end}.admin-page .form-wrap>.brand{display:none}.admin-page .admin-sidebar .side-nav{margin-top:76px}@media(max-width:620px){.admin-page .admin-sidebar{position:static;width:auto}.admin-page .admin-wrap,.admin-page .form-wrap{margin:0;padding:32px 16px}.admin-page .admin-sidebar .side-nav{margin-top:20px}.admin-page .admin-sidebar .sidebar-footer{display:none}}
:root{--navy:#102a63;--ink:#162546;--blue:#2861c7;--cyan:#12b9d6;--pale:#eef7fb;--paper:#f8fbfd;--line:#dce8f0;--muted:#62728a;--white:#fff;--danger:#a63745;--success:#087e91}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at 15% 10%,rgba(18,185,214,.13),transparent 28%),linear-gradient(135deg,var(--paper),#edf6fb);font-family:"DM Sans",sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(300px,.9fr) minmax(420px,1.1fr);max-width:1240px;margin:auto}.auth-brand{display:flex;flex-direction:column;justify-content:center;padding:64px}.brand{display:inline-flex;align-items:center;gap:10px;font-family:Manrope,sans-serif;font-weight:800;color:var(--navy)}.brand img{width:42px;height:42px;object-fit:cover;border-radius:10px}.brand strong{color:var(--blue)}.brand-panel{position:relative;display:flex;flex-direction:column;justify-content:center;padding:48px;background:linear-gradient(145deg,var(--navy),#163e87);color:var(--white);overflow:hidden}.brand-panel:after{content:"";position:absolute;width:420px;height:420px;right:-180px;bottom:-180px;border:1px solid rgba(18,185,214,.38);border-radius:50%;box-shadow:0 0 0 70px rgba(18,185,214,.06),0 0 0 140px rgba(18,185,214,.04)}.brand-panel .brand{position:absolute;top:48px;color:var(--white)}.brand-panel .brand strong{color:var(--cyan)}.brand-copy{position:relative;z-index:1;max-width:430px}.eyebrow{margin:0 0 18px;color:var(--cyan);text-transform:uppercase;letter-spacing:.15em;font-size:.7rem;font-weight:800}.brand-copy h1{margin:0 0 20px;font-family:Manrope,sans-serif;font-size:clamp(2.3rem,4vw,4.5rem);line-height:1.05;letter-spacing:-.05em}.brand-copy p{color:#c4d4e7;max-width:380px}.auth-main{display:flex;align-items:center;justify-content:center;padding:42px}.auth-card{width:min(100%,520px);padding:42px;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:0 22px 60px rgba(25,65,117,.12)}.auth-card h2{margin:0 0 8px;font-family:Manrope,sans-serif;font-size:2rem;letter-spacing:-.04em;color:var(--navy)}.auth-subtitle{margin:0 0 28px;color:var(--muted);font-size:.9rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.field{margin-bottom:17px}.field.full{grid-column:1/-1}.field label{display:block;margin-bottom:7px;color:var(--ink);font-size:.78rem;font-weight:700}.field input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:2px;background:var(--white);color:var(--ink);font:inherit;outline:none}.field input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(40,97,199,.12)}.password-wrap{position:relative}.password-wrap input{padding-right:62px}.password-toggle{position:absolute;right:8px;top:7px;padding:7px;border:0;background:none;color:var(--blue);font-size:.72rem;font-weight:700;cursor:pointer}.button{display:inline-flex;justify-content:center;align-items:center;gap:10px;width:100%;padding:14px 18px;border:0;border-radius:2px;color:var(--white);background:var(--navy);font:inherit;font-weight:800;cursor:pointer}.button:hover{background:var(--blue)}.auth-link{text-align:center;color:var(--muted);font-size:.82rem}.auth-link a{color:var(--blue);font-weight:800}.alert{padding:12px 14px;margin-bottom:20px;border-left:4px solid var(--danger);background:#fff1f2;color:var(--danger);font-size:.82rem}.alert.success{border-color:var(--success);background:#e8f8f7;color:var(--success)}.error-list{margin:-8px 0 20px;padding:12px 16px;background:#fff1f2;color:var(--danger);font-size:.82rem}.remember{display:flex;align-items:center;gap:8px;margin:5px 0 20px;color:var(--muted);font-size:.78rem}.remember input{accent-color:var(--blue)}.success-mark{display:grid;place-items:center;width:48px;height:48px;margin-bottom:20px;border-radius:50%;color:var(--white);background:var(--cyan);font-size:1.5rem}.password-hint{margin:-8px 0 18px;color:var(--muted);font-size:.7rem}@media(max-width:800px){.auth-shell{display:block}.brand-panel{min-height:330px;padding:30px 24px}.brand-panel .brand{top:28px}.brand-copy{margin-top:48px}.brand-copy h1{font-size:2.5rem}.auth-main{padding:28px 16px}.auth-card{padding:28px 22px}}@media(max-width:480px){.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.brand-panel{min-height:300px}.auth-card h2{font-size:1.7rem}}

.demo-student{margin:0 0 24px;padding:16px;border:1px solid var(--line);background:var(--pale);font-size:.82rem;color:var(--navy)}
.demo-student p{margin:4px 0 12px;color:var(--muted)}
.demo-student dl{margin:0;display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 14px}
.demo-student dt{font-weight:700}.demo-student dd{margin:0;overflow-wrap:anywhere}.demo-student code{font-size:.9rem}

/* Prevent form controls and administration layouts from overflowing small screens. */
img{max-width:100%;height:auto}input,select,textarea,button{max-width:100%}
@media (max-width: 420px){
  .auth-main{padding:18px 12px}
  .auth-card{padding:24px 16px}
  .brand-panel{min-height:270px;padding:26px 18px}
  .brand-copy h1{font-size:2rem}
  .admin-page .admin-wrap,.admin-page .form-wrap{padding:24px 12px}
}

/* Administrator dashboard navigation and responsive content area. */
.admin-page{overflow-x:visible}
.admin-page .admin-sidebar{display:flex;flex-direction:column;padding:32px 22px;background:var(--navy);color:var(--white)}
.admin-page .admin-sidebar .brand{color:var(--white)}
.admin-page .admin-sidebar .brand strong{color:var(--cyan)}
.admin-page .admin-sidebar .side-nav{display:grid;gap:7px;margin-top:76px}
.admin-page .admin-sidebar .side-nav a{display:flex;align-items:center;gap:12px;padding:12px 13px;color:#a8c0dc;font-size:.82rem;font-weight:700}
.admin-page .admin-sidebar .side-nav a.active,.admin-page .admin-sidebar .side-nav a:hover{color:var(--white);background:rgba(255,255,255,.1)}
.admin-page .admin-sidebar .side-nav span{width:18px;color:var(--cyan);text-align:center}
.admin-page .admin-sidebar .sidebar-footer{display:flex;align-items:center;gap:10px;padding-top:18px;margin-top:auto;border-top:1px solid rgba(255,255,255,.15);font-size:.73rem}
.admin-page .admin-sidebar .sidebar-footer strong,.admin-page .admin-sidebar .sidebar-footer small{display:block}
.admin-page .admin-sidebar .sidebar-footer small{color:#a8c0dc}
.admin-page .admin-sidebar .sidebar-footer>a{margin-left:auto;color:var(--cyan)}
@media (max-width: 900px){
  .admin-page .admin-sidebar{position:static;width:100%;min-height:auto;padding:16px}
  .admin-page .admin-sidebar .side-nav{display:flex;gap:4px;margin:16px 0 0;overflow-x:auto;scrollbar-width:thin}
  .admin-page .admin-sidebar .side-nav a{flex:0 0 auto;padding:9px 10px;white-space:nowrap}
  .admin-page .admin-sidebar .sidebar-footer{display:none}
  .admin-page .admin-wrap,.admin-page .form-wrap{width:100%;margin:0;padding:32px 20px}
}
@media (max-width: 480px){
  .admin-page .admin-wrap,.admin-page .form-wrap{padding:24px 12px}
  .admin-page .admin-head{align-items:flex-start;flex-direction:column;gap:12px}
  .admin-page .admin-head h1{font-size:1.75rem}
}

/* Keep standalone administration pages inside the viewport. */
html,body{max-width:100%;overflow-x:visible}
img,input,select,textarea,button{max-width:100%}
.admin-wrap,.form-wrap,.admin-head,.form-card,.section,.table-wrap,.log,.field{min-width:0}
.admin-head h1,.form-card h1,.section h2,.table-wrap td,.table-wrap th,.log strong,.log p{overflow-wrap:anywhere}
.table-wrap{max-width:100%;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}
@media (max-width: 700px){
  .admin-wrap,.form-wrap{width:calc(100% - 24px) !important;padding:24px 0 !important}
  .admin-head{align-items:flex-start;flex-direction:column;gap:12px}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr)) !important}
  .section{padding:16px !important}
  .log{grid-template-columns:1fr !important}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:auto}
  .form-actions{flex-direction:column}
  .form-actions .button,.small-button{width:100%;min-height:44px;justify-content:center}
}
@media (max-width: 420px){
  .admin-wrap,.form-wrap{width:calc(100% - 24px) !important;padding:20px 0 !important}
  .metric-grid{grid-template-columns:1fr !important}
  .metric{padding:16px !important}
  .admin-head h1{font-size:1.75rem}
  .form-card{padding:18px !important}
}

.sidebar-toggle,.sidebar-backdrop{display:none}
@media (max-width: 820px){
  body.sidebar-open{overflow:hidden}
  .admin-page .admin-sidebar{position:fixed;inset:0 auto 0 0;z-index:20;width:min(290px,88vw);min-height:100vh;padding:22px 18px;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(7,25,60,.22)}
  body.sidebar-open .admin-page .admin-sidebar{transform:translateX(0)}
  .admin-page .admin-sidebar .side-nav{display:grid;overflow:visible;margin-top:52px}
  .admin-page .admin-sidebar .side-nav a{white-space:normal}
  .sidebar-toggle{position:fixed;top:14px;right:14px;z-index:30;display:grid;place-content:center;gap:4px;width:44px;height:44px;padding:10px;border:1px solid rgba(16,42,99,.16);border-radius:4px;color:var(--navy);background:var(--white);box-shadow:0 8px 20px rgba(16,65,99,.14);cursor:pointer}
  .sidebar-toggle span{display:block;width:22px;height:2px;background:currentColor}
  .sidebar-backdrop{position:fixed;inset:0;z-index:19;border:0;background:rgba(8,24,55,.46);cursor:pointer}
  body.sidebar-open .sidebar-backdrop{display:block}
}
.captcha-field{grid-column:1/-1}.captcha-challenge{display:flex;align-items:center;gap:8px;margin-bottom:7px;padding:11px 14px;border:1px dashed var(--blue);background:#eef4ff;color:var(--navy);font-size:.95rem;letter-spacing:.06em}.captcha-challenge strong{font-size:1.05rem;letter-spacing:.12em}.captcha-field input{max-width:160px}