:root{--ink:#243238;--muted:#748087;--line:#e2e7e9;--soft:#f5f7f7;--accent:#547983;--accent-dark:#385a63;--accent-soft:#eaf0f1;--white:#fff;--danger:#a95d5d;--shadow:0 10px 30px rgba(35,52,59,.07);--shadow-hover:0 16px 38px rgba(35,52,59,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#f6f8f8 0,#fbfcfc 420px);color:var(--ink);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}.topbar{height:68px;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(214,223,226,.85);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1440px)/2));position:sticky;top:0;z-index:20}.brand{font-weight:800;letter-spacing:-.02em;color:var(--ink);text-decoration:none}.brand:before{content:"";display:inline-block;width:9px;height:9px;margin-right:9px;border-radius:50%;background:#6f929a;box-shadow:0 0 0 5px #e8eff0}.topbar nav{display:flex;gap:7px}.topbar nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:9px;font-weight:650}.topbar nav a:hover{color:var(--ink);background:var(--soft)}.page{max-width:1440px;margin:0 auto;padding:42px 26px 88px}footer{text-align:center;color:var(--muted);padding:28px;font-size:13px}.hero,.page-heading,.exercise-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:30px}.hero{background:linear-gradient(135deg,#edf3f3,#fff 68%);border:1px solid var(--line);border-radius:22px;padding:38px;box-shadow:var(--shadow)}.eyebrow{margin:0 0 7px;color:var(--accent);font-weight:800;font-size:11px;letter-spacing:.16em}h1{font-size:clamp(30px,4vw,40px);line-height:1.1;letter-spacing:-.035em;margin:0 0 10px}h2{font-size:21px;letter-spacing:-.015em;margin:0 0 8px}h3{margin:0 0 12px;letter-spacing:-.01em}.hero p,.page-heading p,.exercise-head p,.section-title p,.panel>p{color:var(--muted);margin:0}.button{border:1px solid #cad4d7;background:#fff;color:var(--ink);border-radius:10px;padding:10px 15px;text-decoration:none;font-weight:750;cursor:pointer;white-space:nowrap;box-shadow:0 1px 2px rgba(34,48,54,.04);transition:.18s ease}.button:hover{border-color:#9dafb4;transform:translateY(-1px);box-shadow:0 5px 14px rgba(35,52,59,.08)}.button:active{transform:translateY(0)}.button.primary{background:var(--accent-dark);border-color:var(--accent-dark);color:white}.button.primary:hover{background:#2f5058}.button.small{padding:7px 11px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:24px}.metric,.panel{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.metric{padding:23px;transition:.2s ease}.metric:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.metric span{color:var(--muted);display:block;font-size:13px}.metric strong{display:block;font-size:32px;letter-spacing:-.04em;margin-top:5px}.panel{padding:25px;margin-bottom:22px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:18px}.list{border-top:1px solid var(--line)}.list-row{display:flex;align-items:center;justify-content:space-between;color:var(--ink);text-decoration:none;padding:16px 6px;border-bottom:1px solid var(--line);transition:.15s}.list-row:hover{padding-left:11px;background:#fafbfb}.list-row small,.section-card small{display:block;color:var(--muted);margin-top:3px}.pill,.count{background:var(--accent-soft);color:var(--accent-dark);border:1px solid #dbe7e8;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}.empty{padding:30px;color:var(--muted);background:var(--soft);border:1px dashed #d8e0e2;border-radius:12px;text-align:center}.two-column{display:grid;grid-template-columns:1fr 1fr;gap:24px}.two-column.wide-left{grid-template-columns:minmax(0,2fr) minmax(300px,1fr)}.sticky{position:sticky;top:90px;height:max-content}.form-stack{display:grid;gap:14px;margin-top:20px}.form-stack label{display:grid;gap:6px;font-weight:750;font-size:13px}input,select,textarea{width:100%;border:1px solid #ccd6d9;border-radius:9px;padding:10px 12px;background:#fff;color:var(--ink);font:inherit;transition:border-color .15s,box-shadow .15s,background .15s}textarea{font-family:inherit;font-size:14px}input:hover,select:hover,textarea:hover{border-color:#aebfc4}input:focus,select:focus,textarea:focus{outline:0;border-color:#75959d;box-shadow:0 0 0 3px rgba(84,121,131,.13);background:#fff}.section-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.section-card{display:flex;align-items:center;gap:12px;padding:14px;background:var(--soft);border:1px solid transparent;border-radius:11px;transition:.16s}.section-card:hover{border-color:#cbd9dc;background:#fff;box-shadow:0 6px 18px rgba(35,52,59,.06)}.section-card>span{color:var(--accent);font-weight:800}.status-form{display:flex;gap:8px}.exercise-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:24px}.sidebar{position:sticky;top:90px;height:calc(100vh - 118px);overflow:auto;padding:14px}.sidebar h3{padding:5px 8px 10px}.side-link{display:flex;gap:10px;color:#46565c;text-decoration:none;padding:9px 10px;border-radius:9px;font-size:13px;transition:.15s}.side-link:hover{background:var(--soft);color:var(--ink)}.side-link span{color:#94a0a5;font-variant-numeric:tabular-nums}.side-link.active{background:var(--accent-soft);color:var(--accent-dark);font-weight:780}.content-stack{min-width:0}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:11px}table{border-collapse:collapse;width:100%;font-size:13px}th{position:sticky;top:0;background:#eef2f3;text-align:left;color:#47575d}th,td{padding:10px 11px;border-bottom:1px solid var(--line);vertical-align:top;min-width:120px}details{margin-top:18px}summary{cursor:pointer;font-weight:750;color:var(--accent-dark)}.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:11px;padding:16px;background:var(--soft);border:1px solid #e7ebed;border-radius:12px;margin-bottom:18px}.grid-form textarea{min-height:84px}.grid-form.actions{grid-template-columns:2fr .6fr 1fr 1fr 1fr 1fr}.record{display:grid;grid-template-columns:90px 1fr;gap:12px;padding:14px 2px;border-top:1px solid var(--line)}.record p,.record small{margin:3px 0;color:var(--muted)}.priority{font-weight:800}.priority.p1{color:var(--danger)}
@media(max-width:900px){.page{padding:28px 16px 64px}.two-column,.two-column.wide-left,.exercise-layout,.cards{grid-template-columns:1fr}.sidebar{position:static;height:auto}.hero,.page-heading,.exercise-head{align-items:flex-start;flex-direction:column}.hero{padding:25px}.grid-form,.grid-form.actions{grid-template-columns:1fr}.section-grid{grid-template-columns:1fr}.topbar{padding:0 16px}}

/* Compact workbook-oriented interface */
:root{--accent:#217346;--accent-dark:#185c37;--accent-soft:#e8f2ec;--line:#d4dade;--soft:#f3f5f6;--shadow:0 1px 3px rgba(35,45,50,.07);--shadow-hover:0 2px 7px rgba(35,45,50,.1)}
body{background:#f3f4f5;font:14px/1.45 "Segoe UI",Inter,ui-sans-serif,system-ui,sans-serif}
.topbar{height:54px;background:#fff;backdrop-filter:none;border-bottom:1px solid #cbd2d5;padding:0 max(20px,calc((100vw - 1500px)/2))}
.brand:before{width:8px;height:8px;margin-right:8px;border-radius:0;background:var(--accent);box-shadow:none}
.topbar nav a{padding:7px 10px;border-radius:3px}.page{max-width:1500px;padding:24px 20px 64px}
.button{border-radius:4px;padding:8px 12px;box-shadow:none}.button:hover{transform:none;box-shadow:none}.button.primary{background:var(--accent);border-color:var(--accent)}.button.primary:hover{background:var(--accent-dark)}
.metric,.panel{background:#fff;border-radius:5px;box-shadow:var(--shadow)}.panel{padding:18px;margin-bottom:16px}
.exercise-layout{grid-template-columns:245px minmax(0,1fr);gap:12px}.sidebar{top:66px;height:calc(100vh - 82px);padding:9px}.side-link{gap:8px;padding:7px 8px;border-radius:2px}.side-link.active{background:var(--accent-soft);color:var(--accent-dark);border-left:3px solid var(--accent);font-weight:700}
.nav-toggle{width:30px;height:30px;display:inline-grid;place-items:center;border:1px solid #bfc7ca;border-radius:3px;background:#fff;color:#465158;cursor:pointer;padding:0;box-shadow:0 1px 2px rgba(35,45,50,.06)}.nav-toggle:hover{background:#edf3ef;border-color:#8eaa99;color:var(--accent-dark)}.nav-toggle span{font-size:22px;line-height:1;transform:translateY(-1px)}
input,select,textarea{border-radius:4px}
.exercise-row>a{color:var(--ink);text-decoration:none;min-width:0;flex:1}.row-actions{display:flex;align-items:center;gap:7px}.row-actions form{margin:0}.button.danger{color:#963f3f;border-color:#d4aaaa;background:#fff}.button.danger:hover{background:#fff2f2;border-color:#bd7777}
@media(max-width:700px){.exercise-row,.row-actions{align-items:flex-start;flex-direction:column}}
.scenario-help{font-size:12px;line-height:1.4;color:var(--muted);padding:9px 10px;background:var(--soft);border-left:3px solid var(--accent);margin:0!important}
.topbar nav{align-items:center}.topbar nav form{margin:0}.topbar-link{border:0;background:transparent;color:var(--muted);font:inherit;font-weight:600;padding:7px 9px;cursor:pointer}.topbar-link:hover{color:var(--ink);background:var(--soft)}.user-chip{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:5px 9px;background:var(--accent-soft);color:var(--accent-dark);border-radius:3px;font-size:12px;font-weight:650}.login-shell{min-height:calc(100vh - 190px);display:grid;place-items:center}.login-card{width:min(460px,100%);background:#fff;border:1px solid var(--line);padding:38px;box-shadow:0 8px 28px rgba(35,45,50,.09)}.login-card>p{color:var(--muted)}.login-domain{padding:9px 10px;background:var(--soft);border-left:3px solid var(--accent)}.google-login{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:24px;padding:11px 14px;border:1px solid #bfc7ca;color:var(--ink);background:#fff;text-decoration:none;font-weight:700}.google-login:hover{border-color:#8ca396;background:#fafcfb}.google-mark{font:800 18px Arial;color:#4285f4}