:root{
  --ink:#17212b;--muted:#63717e;--paper:#f7f8f5;--card:#ffffff;--line:#dfe5df;
  --teal:#0e756c;--teal2:#dff3ef;--coral:#e36d4f;--coral2:#fff0eb;--navy:#18384f;--gold:#d5a72f;
  --shadow:0 18px 50px rgba(26,46,58,.10);--radius:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,system-ui,sans-serif;line-height:1.6}
a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}.shell{max-width:1180px;margin:auto;padding-left:28px;padding-right:28px}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:14px 28px;border-bottom:1px solid rgba(223,229,223,.9);background:rgba(247,248,245,.92);backdrop-filter:blur(14px)}
.brand{display:flex;gap:12px;align-items:center;color:var(--ink)}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--ink);color:#fff;font-weight:800}.brand strong,.brand small{display:block}.brand small{font-size:11px;color:var(--muted)}.topnav{display:flex;align-items:center;gap:18px}.topnav>a{color:var(--ink);font-size:14px;font-weight:600}
.btn{border:0;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;font-family:inherit}.btn-primary{background:var(--teal);color:#fff}.btn-secondary{background:var(--teal2);color:#07554f}.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn.full{width:100%}.btn:disabled{opacity:.55;cursor:not-allowed}
.hero{min-height:610px;display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;padding-top:70px;padding-bottom:70px}.eyebrow,.section-heading>span{font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--teal)}h1,h2,h3{line-height:1.1;margin-top:0}h1,h2{font-family:Newsreader,Georgia,serif}.hero h1{font-size:56px;margin:14px 0 22px}.hero h1 span{color:var(--teal)}.lead{font-size:19px;color:#44515c;max-width:670px}.hero-actions{display:flex;gap:12px;margin:28px 0}.hero-visual img{width:100%;filter:drop-shadow(0 22px 35px rgba(14,117,108,.12))}.schedule-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:36px}.schedule-strip div{border-top:3px solid var(--teal);padding-top:10px}.schedule-strip strong,.schedule-strip span{display:block}.schedule-strip span{font-size:12px;color:var(--muted);margin-top:4px}
.section{padding-top:78px;padding-bottom:78px}.section.compact{padding-top:42px}.section-heading{margin-bottom:28px}.section-heading h2{font-size:38px;margin:7px 0}.section-heading p{color:var(--muted)}.lo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lo-card,.module-card-preview,.radar-card,.illustration-card,.progress-panel,.login-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.lo-card{padding:25px}.lo-card b{font-size:12px;color:var(--teal)}.lo-card h3{margin:10px 0;font-size:21px}.lo-card p{color:var(--muted);font-size:14px}
.split-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:35px;align-items:center}.illustration-card{padding:25px}.illustration-card img{width:100%}.discipline-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.discipline-tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 12px;cursor:pointer;font-weight:700}.discipline-tabs button.active{background:var(--ink);color:#fff}.discipline-panel{margin-top:15px;background:#fff;border-left:4px solid var(--coral);padding:18px 20px;border-radius:12px}.discipline-panel h3{margin-bottom:6px}.discipline-panel p{margin:0;color:var(--muted)}
.week-header{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:18px}.week-header h2,.week-header h1{font-size:42px;margin:8px 0}.week-header p{margin:0;color:var(--muted)}.week-pill{display:inline-block;background:var(--teal2);color:var(--teal);padding:5px 10px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.1em}.week-pill.accent{background:var(--coral2);color:#a64530}.timebox{min-width:150px;padding:16px 18px;border-radius:16px;background:var(--ink);color:#fff}.timebox strong,.timebox span{display:block}.timebox strong{font-size:28px}.timebox span{font-size:12px;color:#d7e1e8}.lecturer-hour{display:grid;grid-template-columns:210px 1fr;gap:20px;padding:15px 18px;background:var(--teal2);border-left:4px solid var(--teal);border-radius:12px;margin-bottom:24px;font-size:14px}.accent-line{background:var(--coral2);border-color:var(--coral)}
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.module-card-preview{padding:0;overflow:hidden;display:flex;flex-direction:column}.module-card-preview .module-top{padding:22px 22px 10px}.module-number{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--teal)}.module-card-preview h3{font-size:22px;margin:8px 0}.module-card-preview p{font-size:14px;color:var(--muted)}.module-meta{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.tag{font-size:11px;padding:5px 8px;border-radius:999px;background:#eef2f1;color:#43505a;font-weight:700}.module-card-preview .module-footer{margin-top:auto;border-top:1px solid var(--line);padding:14px 22px;display:flex;align-items:center;justify-content:space-between}.score-chip{font-weight:800;color:var(--teal)}
.radar-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.radar-card{padding:24px}.radar-card .date{font-size:11px;color:var(--coral);font-weight:800}.radar-card h3{margin:8px 0}.radar-card p{color:var(--muted);font-size:14px}.radar-card .cogsci-link{background:#f3f6f4;border-radius:12px;padding:12px;margin:14px 0;font-size:13px}.source-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:13px}
.progress-panel{padding:26px;min-height:150px}.progress-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.activity-score{background:#f3f6f4;border-radius:14px;padding:14px;text-align:center}.activity-score b{font-size:22px;display:block}.activity-score span{font-size:11px;color:var(--muted)}.total-score{margin-top:18px;display:flex;justify-content:space-between;align-items:center;padding-top:18px;border-top:1px solid var(--line)}.total-score strong{font-size:28px}.references{display:grid;gap:10px}.reference-item{background:#fff;border:1px solid var(--line);padding:15px 18px;border-radius:14px}.reference-item small{display:block;color:var(--muted);margin-top:4px}.ref-type{font-size:10px;font-weight:800;letter-spacing:.08em;background:var(--teal2);color:var(--teal);border-radius:999px;padding:4px 7px;margin-right:8px}
footer{background:var(--ink);color:#fff;padding:40px 0;margin-top:50px}.footer-grid{display:grid;grid-template-columns:1.2fr .6fr 1fr;gap:30px}.footer-grid p,.footer-grid small{color:#bdcbd3}.footer-grid a{color:#b9ede7}
.dialog{border:0;background:transparent;max-width:min(760px,95vw);width:100%;padding:0}.dialog::backdrop{background:rgba(14,24,31,.72);backdrop-filter:blur(5px)}.dialog-card{position:relative;background:#fff;border-radius:22px;padding:30px;box-shadow:0 30px 100px rgba(0,0,0,.25);max-height:90vh;overflow:auto}.dialog-close{position:absolute;right:18px;top:15px;border:0;background:transparent;font-size:28px;cursor:pointer}.dialog label,.login-panel label,.dashboard-actions label{display:grid;gap:6px;font-size:12px;font-weight:700;margin:12px 0}.dialog input,.dialog select,.login-panel input,.dashboard-actions select{width:100%;border:1px solid #ccd5d2;border-radius:10px;padding:11px 12px;font:inherit}.auth-tabs{display:flex;border-bottom:1px solid var(--line);margin:16px 0}.auth-tabs button{border:0;background:transparent;padding:10px 14px;font-weight:700;cursor:pointer}.auth-tabs button.active{color:var(--teal);border-bottom:3px solid var(--teal)}.muted{color:var(--muted)}.small{font-size:12px}
.module-dialog{max-width:min(920px,96vw)}.module-card{padding:34px}.module-hero{padding:24px;border-radius:18px;background:linear-gradient(135deg,var(--teal2),#fff);margin-bottom:22px}.module-hero h2{font-size:36px;margin:8px 0}.module-plan{display:flex;gap:8px;flex-wrap:wrap}.module-section{padding:20px 0;border-bottom:1px solid var(--line)}.module-section:last-child{border-bottom:0}.module-section h3{font-size:23px}.note-box,.audit-box,.tech-box{border-radius:14px;padding:16px 18px;margin:15px 0}.note-box{background:#f3f6f4}.audit-box{background:#fff5e5;border-left:4px solid var(--gold)}.tech-box{background:#edf2fa;border-left:4px solid #5a78a6}.concept-img{width:min(680px,100%);display:block;margin:18px auto}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.resource{border:1px solid var(--line);border-radius:14px;padding:15px}.resource b{display:block}.resource small{color:var(--muted)}.video-frame{width:100%;aspect-ratio:16/9;border:0;border-radius:16px;background:#111}.activity-wrap{background:#f7f9f7;border:1px solid var(--line);border-radius:18px;padding:20px}.question{padding:15px 0;border-bottom:1px solid var(--line)}.question:last-child{border-bottom:0}.question p{font-weight:700}.option{display:flex;gap:10px;align-items:flex-start;margin:8px 0;padding:9px 11px;border:1px solid #dce2df;border-radius:10px;background:#fff;cursor:pointer}.option:hover{border-color:var(--teal)}.activity-result{margin-top:16px;padding:14px;border-radius:12px;background:var(--teal2)}.activity-result strong{font-size:24px}.activity-instructions{font-size:13px;color:var(--muted);margin-bottom:15px}.source-note{font-size:12px;color:var(--muted)}
.toast{position:fixed;right:20px;bottom:20px;z-index:99;background:var(--ink);color:#fff;padding:13px 16px;border-radius:12px;opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}
.login-panel{max-width:520px;margin:50px auto;padding:32px}.login-panel h1{font-size:42px}.dashboard-actions{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin:22px 0}.dashboard-actions label{min-width:150px;margin:0}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0}.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.stat b{display:block;font-size:26px}.stat span{font-size:12px;color:var(--muted)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}table{border-collapse:collapse;width:100%;font-size:13px}th,td{padding:12px 13px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}th{background:#f1f5f3;font-size:11px;text-transform:uppercase;letter-spacing:.04em}.privacy-note{font-size:12px;color:var(--muted);margin-top:16px;padding:12px;background:#fff5e5;border-radius:10px}
@media(max-width:900px){.topnav a{display:none}.hero,.split-panel{grid-template-columns:1fr}.hero{padding-top:45px}.hero h1{font-size:43px}.hero-visual{order:-1}.hero-visual img{max-height:310px}.lo-grid,.module-grid{grid-template-columns:1fr}.radar-grid{grid-template-columns:1fr}.schedule-strip{grid-template-columns:1fr 1fr}.progress-grid{grid-template-columns:repeat(3,1fr)}.week-header{align-items:flex-start}.resource-grid{grid-template-columns:1fr}.lecturer-hour{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.shell{padding-left:18px;padding-right:18px}.topbar{padding:10px 16px}.hero h1{font-size:37px}.hero-actions{flex-direction:column}.schedule-strip{grid-template-columns:1fr}.week-header{display:block}.timebox{margin-top:16px}.progress-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.module-card{padding:22px}.module-hero h2{font-size:29px}}

.self-eval-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}.self-eval-controls,.self-eval-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.self-eval-row{padding:10px 0;border-bottom:1px solid var(--line)}.self-eval-row:last-child{border-bottom:0}.self-eval-row b{display:block;margin-bottom:6px}.slider-pair{display:grid;grid-template-columns:65px 1fr 35px;gap:8px;align-items:center;font-size:11px;color:var(--muted)}.slider-pair input{width:100%}.self-eval-card canvas{width:100%;height:auto;background:#fff;border-radius:14px}.self-eval-card .btn{margin-top:12px}@media(max-width:900px){.self-eval-grid{grid-template-columns:1fr}}

/* Course Studio + lecturer-published learning materials */
.portal-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin:22px 0}.portal-tabs button{border:0;background:transparent;padding:12px 16px;font:inherit;font-weight:800;cursor:pointer;color:var(--muted)}.portal-tabs button.active{color:var(--teal);border-bottom:3px solid var(--teal)}
.studio-intro{display:flex;justify-content:space-between;gap:24px;align-items:end;margin:24px 0}.studio-intro h2{font-size:36px;margin:8px 0}.studio-feature-strip{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.studio-feature-strip span{background:#eef5f3;border:1px solid #d6e5e1;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#31564f}.studio-list{display:grid;gap:12px}.studio-item{display:flex;justify-content:space-between;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}.studio-item h3{margin:7px 0}.studio-item p{margin:0;color:var(--muted);font-size:13px}.studio-item-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.studio-item-actions{display:flex;gap:8px;flex-wrap:wrap}.published-badge,.draft-badge{font-size:10px;font-weight:800;border-radius:999px;padding:4px 8px}.published-badge{background:var(--teal2);color:var(--teal)}.draft-badge{background:#f1f2f3;color:#66717a}.empty-studio{background:#fff;border:1px dashed #cfd8d4;border-radius:16px;padding:28px;text-align:center}
.studio-dialog{max-width:min(1180px,97vw)}.studio-editor-grid{display:grid;grid-template-columns:1fr .9fr;gap:22px;align-items:start}.studio-form label{display:grid;gap:6px;font-size:12px;font-weight:700;margin:12px 0}.studio-form input,.studio-form select,.studio-form textarea{width:100%;border:1px solid #ccd5d2;border-radius:10px;padding:10px 12px;font:inherit}.studio-form textarea{resize:vertical}.studio-preview-wrap{position:sticky;top:0;background:#f7f9f7;border:1px solid var(--line);border-radius:16px;padding:15px}.preview-label{font-size:10px;letter-spacing:.12em;font-weight:800;color:var(--teal);margin-bottom:10px}.material-preview{background:#fff;border-radius:12px;padding:20px;min-height:460px;box-shadow:inset 0 0 0 1px #e4e9e6}.material-preview h2{font-size:28px;margin:10px 0}.material-preview p{line-height:1.65}.material-preview code{background:#eef2f1;border-radius:5px;padding:1px 4px}.resource-preview,.preview-quiz{background:#eef5f3;border-radius:12px;padding:12px;margin:12px 0}.group-field{border:1px solid var(--line);border-radius:12px;padding:12px}.group-field legend{font-size:12px;font-weight:800}.group-checks{display:flex;gap:8px;flex-wrap:wrap}.group-chip{display:flex!important;grid-template-columns:none!important;align-items:center;gap:5px!important;margin:0!important;background:#f3f6f4;padding:7px 10px;border-radius:999px}.group-chip input,.inline-check input{width:auto!important}.inline-check{display:flex!important;align-items:center;gap:8px!important}.studio-save-row{display:flex;gap:8px;margin-top:16px}.exercise-builder-head{display:flex;justify-content:space-between;align-items:end;margin-top:22px}.exercise-builder-head label{margin:0}.qb-card{background:#f7f9f7;border:1px solid var(--line);border-radius:13px;padding:12px;margin:10px 0}.qb-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.qb-remove{border:0;background:transparent;font-size:22px;cursor:pointer;color:#8d4d43}.qb-option-row{display:grid;grid-template-columns:24px 1fr;gap:7px;align-items:center;margin:6px 0}.qb-option-row .qb-correct{width:auto}.concept-chain{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:12px 0}.concept-node{background:#eef5f3;border:1px solid #cfe2dc;border-radius:12px;padding:9px 12px;font-weight:700}.concept-arrow{font-size:20px;color:var(--teal)}.studio-image-preview{max-width:100%;max-height:360px;object-fit:contain;border-radius:14px;border:1px solid var(--line)}
.materials-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.lecturer-material-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.material-card-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.lecturer-material-card h3{font-size:23px;margin:10px 0}.material-summary{color:var(--muted);font-size:14px}.material-body{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}.material-body p{line-height:1.65}.lead-small{font-size:14px;color:var(--muted)}
.research-spotlight{background:linear-gradient(180deg,transparent,#f6faf8 18%,#f6faf8 84%,transparent)}.research-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:18px}.paper-card,.paper-discussion{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.paper-card h3,.paper-discussion h3{font-size:25px}.paper-discussion li{margin:10px 0;line-height:1.55}
@media(max-width:900px){.studio-editor-grid,.research-grid,.materials-grid{grid-template-columns:1fr}.studio-preview-wrap{position:static}.studio-item,.studio-intro{display:block}.studio-item-actions{margin-top:14px}}