:root{--navy:#091a31;--navy2:#10294b;--ink:#16243b;--muted:#68788e;--line:#e2e8f0;--bg:#f5f8fc;--blue:#1e66dd;--teal:#008d88;--white:#fff;--red:#bf3545;--shadow:0 18px 50px rgba(10,33,70,.075)}*{box-sizing:border-box}html{font-family:Inter,"Segoe UI",system-ui,Arial,sans-serif}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.5}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{opacity:.48;cursor:not-allowed}.hero{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}.hero-side{background:radial-gradient(circle at 84% 14%,#176b88 0,transparent 31%),linear-gradient(140deg,#091d36,#102b50 70%,#0c424f);color:#fff;padding:clamp(32px,5vw,76px);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:20px;letter-spacing:-.6px}.brand-icon{width:42px;height:42px;border-radius:13px;background:#d8f2ff;color:#0e315b;display:grid;place-items:center;font-size:25px}.hero-side h1{font-size:clamp(34px,4.4vw,61px);line-height:1.08;letter-spacing:-2px;margin:24px 0}.hero-side h1 em{color:#68e3d0;font-style:normal}.hero-side p{color:#c6d7e8;max-width:480px;font-size:17px}.pill{display:inline-flex;padding:7px 12px;border-radius:99px;background:#ffffff17;border:1px solid #ffffff29;font-size:12px;letter-spacing:1.1px;text-transform:uppercase;font-weight:800}.hero-notes{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:32px;max-width:480px}.note-mini{border:1px solid #ffffff2f;background:#ffffff12;backdrop-filter:blur(10px);border-radius:18px;padding:18px;min-height:120px}.note-mini strong{font-size:30px;display:block}.note-mini small{color:#c1d2dd}.hero-form{padding:32px;display:grid;place-items:center}.form-panel{width:min(480px,100%);background:white;border:1px solid #edf1f6;padding:clamp(28px,4vw,50px);border-radius:24px;box-shadow:var(--shadow)}h1,h2,h3,p{margin-top:0}.form-panel h2{font-size:28px;letter-spacing:-.8px;margin-bottom:7px}.sub{color:var(--muted);font-size:14px;margin-bottom:24px}.field{display:flex;flex-direction:column;gap:7px;margin:13px 0}.field label{font-weight:700;font-size:13px;color:#34445e}.field input,.field select,.field textarea,input.search,select.filter{width:100%;padding:12px 13px;border:1px solid #d6dfeb;border-radius:10px;background:#fff;color:var(--ink);outline:none;transition:border .12s,box-shadow .12s}.field input:focus,.field select:focus,.field textarea:focus,input.search:focus{border-color:#3888f5;box-shadow:0 0 0 3px #d8e9ff}.btn{display:inline-flex;justify-content:center;align-items:center;gap:7px;border:0;background:var(--blue);color:#fff;padding:12px 17px;border-radius:10px;font-weight:750;white-space:nowrap}.btn:hover:not(:disabled){filter:brightness(.92)}.btn-secondary{background:#eaf1fd;color:#1557c1}.btn-danger{background:#fff0f1;color:#bb2434}.btn-ghost{background:#fff;color:#274364;border:1px solid #d9e2ee}.btn-small{font-size:12px;padding:8px 10px}.full{width:100%}.form-links{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:#275fbe;margin-top:17px}.form-alert{margin:12px 0;padding:11px 13px;border-radius:9px;font-size:13px;background:#fef0f1;border:1px solid #ffd5d8;color:#a82936;display:none}.form-alert.show{display:block}.form-alert.success{background:#edfdf8;border-color:#c4f0e0;color:#0c7462}.tiny{font-size:12px;color:var(--muted)}.shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}.sidebar{background:#0c203b;color:#e8f2fc;padding:23px 16px;display:flex;flex-direction:column;gap:27px;min-width:0}.sidebar .brand{font-size:16px;letter-spacing:-.4px}.side-section{color:#829dbd;text-transform:uppercase;font-weight:800;letter-spacing:1.2px;font-size:10px;padding:8px 12px}.nav-items{display:grid;gap:4px}.nav-item{width:100%;text-align:left;border:0;color:#cbd9ec;background:transparent;padding:12px 13px;display:flex;align-items:center;gap:12px;border-radius:10px;font-weight:680;font-size:13px}.nav-item:hover,.nav-item.active{background:#1b385d;color:#fff}.nav-item.active:before{content:'';width:4px;height:20px;background:#60dace;border-radius:4px;margin-left:-7px}.sidebar-bottom{margin-top:auto;border-top:1px solid #ffffff1a;padding-top:16px}.main{min-width:0}.topbar{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:10px;padding:15px clamp(18px,3vw,42px)}.topbar h1{font-size:22px;margin:0;letter-spacing:-.5px}.topbar .eyebrow{font-size:10px;color:var(--muted);font-weight:800;letter-spacing:1.6px;text-transform:uppercase}.main-inner{padding:clamp(18px,3vw,42px);max-width:1440px}.intro{margin-bottom:24px;display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.intro h2{font-size:26px;margin:0 0 4px;letter-spacing:-.5px}.intro p{color:var(--muted);font-size:13px;margin:0}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:25px}.stat{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px;box-shadow:0 3px 15px #102a4905}.stat .label{font-size:12px;color:var(--muted);font-weight:650}.stat strong{display:block;margin-top:11px;font-size:32px;letter-spacing:-1px}.stat .mini{font-size:12px;color:#1d8f85}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:20px;box-shadow:0 5px 25px #102a4906}.panel-header{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}.panel h3{font-size:18px;letter-spacing:-.35px;margin:0}.panel p{color:var(--muted);font-size:13px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.course-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 9px 25px #0a27470d;transition:transform .15s}.course-card:hover{transform:translateY(-2px)}.cover{height:156px;background:linear-gradient(135deg,#163e73,#18898a);display:grid;place-items:center;position:relative;color:white;font-weight:800;font-size:30px}.cover img{width:100%;height:100%;object-fit:cover}.cover .lock-mark{position:absolute;right:12px;top:12px;background:#10253bd9;color:#fff;padding:6px 11px;border-radius:999px;font-size:11px;letter-spacing:.2px}.cover .unlock-mark{position:absolute;right:12px;top:12px;background:#0b765f;color:#fff;padding:6px 11px;border-radius:999px;font-size:11px}.course-body{padding:18px}.course-body h3{margin:0 0 7px;font-size:16px}.course-body p{color:var(--muted);font-size:12px;min-height:36px}.course-body .btn{width:100%;font-size:13px}.badge{display:inline-flex;border-radius:100px;font-size:11px;font-weight:800;padding:5px 9px;background:#eaf1ff;color:#1b61c4}.badge.green{background:#e4f8ef;color:#147f55}.badge.amber{background:#fff5dc;color:#94610c}.badge.red{background:#ffedf0;color:#aa2b38}.table-wrap{overflow:auto}.data-table{border-collapse:collapse;width:100%;min-width:570px;font-size:13px}.data-table th{text-align:left;color:#65758c;background:#f5f8fc;padding:12px;font-size:11px;text-transform:uppercase;letter-spacing:.5px}.data-table td{border-bottom:1px solid #edf0f5;padding:13px 12px}.data-table tr:last-child td{border-bottom:0}.data-table input[type=checkbox]{accent-color:#137d77;width:18px;height:18px;cursor:pointer}.toolbar{display:flex;gap:11px;align-items:center;flex-wrap:wrap;margin-bottom:17px}.toolbar .search{max-width:310px}.toolbar select{max-width:380px}.empty{text-align:center;padding:36px 15px;color:var(--muted);border:1px dashed #d3dcea;border-radius:12px;font-size:13px}.notice{padding:13px 15px;background:#eaf5ff;border-left:3px solid #3387e8;color:#285577;border-radius:8px;font-size:13px;margin-bottom:18px}.danger-note{background:#fff1ed;color:#874c33;border-color:#e29a55}.hidden{display:none!important}.split{display:flex;justify-content:space-between;gap:10px;align-items:center}.gap12{gap:12px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.stack{display:grid;gap:13px}.inline-form{display:flex;gap:12px;flex-wrap:wrap;align-items:end}.inline-form .field{flex:1;min-width:190px;margin:0}.filehint{font-size:11px;color:var(--muted)}.reader{position:fixed;inset:0;z-index:50;background:#091421;display:flex;flex-direction:column;color:#fff}.reader-toolbar{height:66px;background:#0c2037;display:flex;gap:12px;align-items:center;justify-content:space-between;padding:10px 20px}.reader-toolbar strong{font-size:15px}.reader-pages{flex:1;overflow:auto;text-align:center;padding:24px 15px;user-select:none;-webkit-user-select:none}.reader-page{width:min(850px,95%);position:relative;margin:auto;background:#fff;box-shadow:0 20px 60px #0008}.reader-page img{width:100%;display:block;pointer-events:none;-webkit-user-drag:none}.reader-watermarks{pointer-events:none;position:absolute;inset:0;display:grid;grid-template-rows:repeat(5,1fr);overflow:hidden}.reader-watermarks span{font-size:clamp(11px,2.3vw,21px);font-weight:800;opacity:.26;transform:rotate(-25deg);color:#102b50;white-space:nowrap;align-self:center}.reader-footer{background:#0c2037;display:flex;align-items:center;justify-content:center;gap:16px;padding:12px}.reader .btn{background:#e8f0fa;color:#102744}.student-welcome{background:linear-gradient(110deg,#0b2b50,#117475);padding:30px;border-radius:18px;color:white;margin-bottom:23px}.student-welcome h2{font-size:26px;margin:0 0 5px}.student-welcome p{font-size:13px;color:#d5eef1;margin:0}.notification{position:fixed;z-index:100;bottom:24px;right:24px;background:#0c203b;color:#fff;padding:13px 18px;border-radius:10px;box-shadow:var(--shadow);max-width:370px;font-size:13px}.notification.error{background:#a52f3e}@media(max-width:1000px){.stat-grid{grid-template-columns:repeat(2,1fr)}.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr}.hero-side{min-height:300px}.hero-side h1{font-size:36px}.hero-side .hero-notes{display:none}.hero-form{padding:28px 20px}.two-col{grid-template-columns:1fr}}@media(max-width:730px){.shell{grid-template-columns:1fr}.sidebar{position:relative;padding:13px;gap:8px}.sidebar .brand{padding-left:5px}.side-section,.sidebar-bottom{display:none}.nav-items{display:flex;gap:5px;overflow:auto}.nav-item{width:auto;white-space:nowrap;padding:9px 10px}.nav-item.active:before{display:none}.topbar{height:auto;min-height:66px}.topbar h1{font-size:17px}.main-inner{padding:17px}.grid-cards{grid-template-columns:1fr}.stat-grid{gap:9px}.stat{padding:15px}.stat strong{font-size:26px}.panel{padding:16px}.intro h2{font-size:21px}.reader-toolbar{padding:8px}.reader-toolbar strong{font-size:12px}.reader-footer{gap:6px}}

.brand-accent{color:#64e0cc}.brand-kicker{display:block;font-size:11px;color:#afd2e0;letter-spacing:2px}.brand-small{font-size:10px;color:#9db3cb}.sidebar-caption{color:#bbcee5}.heading-space{margin-top:17px}.tiny-space{margin-top:20px}.panel-heading{margin-bottom:14px!important}.compact-panel{margin:0;padding:14px}.compact-panel-spaced{margin:0 0 10px;padding:14px}.chart-line{display:flex;gap:32px;align-items:center;flex-wrap:wrap}.donut{width:154px;height:154px;flex:none}.donut circle{fill:none;stroke-width:14}.donut .base{stroke:#e5ecf4}.donut .value{stroke:#15948b;stroke-dasharray:0 377;transition:stroke-dasharray .2s}.donut-label{font-size:13px;color:#64758b}.chart-stats{display:grid;gap:12px}.chart-stats strong{font-size:25px;display:block}.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px}.dot-green{background:#15948b}.dot-grey{background:#e2e8f0}


/* Isolated Notes Portal V1.2 home page */
.portal-home{background:radial-gradient(circle at 90% -10%,#d9f7f2 0%,transparent 30%),linear-gradient(145deg,#f7faff,#ecf2f9);min-height:100vh;color:#142f4c}
.portal-frame{max-width:1280px;padding:0 clamp(18px,4vw,52px);margin:0 auto}
.portal-head{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:102px;border-bottom:1px solid #cfdfe9}
.portal-logo{text-decoration:none;color:#122c49;display:flex;gap:13px;align-items:center;font-size:18px;font-weight:900;letter-spacing:-.6px}
.portal-logo b{color:#168b82}.portal-logo small{display:block;font-size:10px;letter-spacing:1.7px;color:#627991;font-weight:800;margin-top:2px}
.portal-logo-mark{display:grid;place-items:center;background:#102e51;color:#fff;border-radius:14px;width:49px;height:49px;letter-spacing:-1px}
.portal-toplinks{display:flex;gap:12px;align-items:center}.portal-toplinks a{text-decoration:none;color:#27547b;padding:10px 14px;border:1px solid #c7dbe6;border-radius:10px;font-size:13px;font-weight:750}.portal-toplinks a:hover{background:#e4f3f6}
.portal-main{padding:clamp(30px,5.5vw,72px) 0 65px}
.portal-intro{max-width:820px}.portal-eyebrow{font-size:11px;letter-spacing:2px;font-weight:900;color:#12897f}.portal-intro h1{font-size:clamp(37px,5.2vw,66px);line-height:1.08;letter-spacing:-2px;margin:19px 0}.portal-intro em{font-style:normal;color:#137b76}.portal-intro p{font-size:16px;line-height:1.75;color:#63768a;max-width:680px}
.portal-chips{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0 37px}.portal-chips span{background:#e4f2f3;color:#286a71;font-size:12px;font-weight:750;border-radius:30px;padding:9px 13px}
.portal-choice{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.portal-option{background:white;border:1px solid #dae6ef;box-shadow:0 18px 42px #173b5b12;border-radius:22px;padding:clamp(23px,3.4vw,39px);display:flex;flex-direction:column;align-items:flex-start;min-height:345px}.portal-option.admin-option{background:linear-gradient(155deg,#133659,#0d2744);border-color:#153f69;color:white}.portal-option-icon{font-size:25px;background:#e9f6f4;padding:12px;border-radius:15px;margin-bottom:18px}.admin-option .portal-option-icon{background:#294b6a}.portal-label{font-size:10px;letter-spacing:1.55px;font-weight:900;color:#158279}.admin-option .portal-label{color:#77dfd1}.portal-option h2{font-size:25px;letter-spacing:-.6px;margin:12px 0}.portal-option p{font-size:14px;line-height:1.8;color:#68788e;max-width:430px;flex:1}.admin-option p{color:#c3d2e1}.portal-primary{width:100%;display:flex;align-items:center;justify-content:space-between;background:#117c76;color:white;text-decoration:none;padding:16px 18px;border-radius:11px;font-weight:800;font-size:14px}.portal-primary:hover{background:#0c6862}.portal-primary.admin-button{background:#74dfca;color:#103c48}.portal-primary.admin-button:hover{background:#91ead9}.portal-alt{font-size:12px;font-weight:700;text-decoration:none;color:#18648b;margin-top:17px}.portal-alt:hover{text-decoration:underline}.portal-alt.muted{color:#bfd2e2}.portal-foot{border-top:1px solid #cfdfe9;padding:22px 0 32px;display:flex;justify-content:space-between;gap:12px;color:#718398;font-size:12px}.portal-back{display:flex;justify-content:space-between;margin-top:17px;font-size:13px}.portal-back a{text-decoration:none;color:#225f8b;font-weight:700}
@media(max-width:790px){.portal-choice{grid-template-columns:1fr}.portal-option{min-height:300px}.portal-head{min-height:83px}.portal-toplinks a{font-size:11px;padding:9px}.portal-foot{flex-direction:column}.portal-intro h1{letter-spacing:-1px}}
@media(max-width:420px){.portal-logo{font-size:14px}.portal-logo-mark{width:38px;height:38px;border-radius:11px}.portal-logo small{font-size:8px}.portal-head{gap:6px}.portal-toplinks{gap:4px}.portal-toplinks a{font-size:10px;padding:7px}}

/* V1.6 management tables; responsive and easily distinguishable destructive actions */
.table-wrap{overflow-x:auto;max-width:100%}
.actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.btn-danger-outline{background:#fff;color:#a72b37;border:1px solid #e3a5ad}
.btn-danger-outline:hover{background:#fff2f3}
.data-table{width:100%;border-collapse:collapse}
.data-table td,.data-table th{vertical-align:middle;padding:12px 10px;text-align:left;border-bottom:1px solid #e7edf4}
.data-table th{white-space:nowrap;font-size:.76rem;letter-spacing:.04em;color:#60738a}
.data-table td{font-size:.88rem}
@media(max-width:900px){.data-table{min-width:790px}.actions{min-width:180px}}