/* CS442 ICA4 v2 — Human–Computer Interaction activity shell.
   A small, dependency-free design system. 16px base, AA text contrast,
   visible focus, reduced-motion support, and no external assets. */
:root{
  --paper:#f4f1e7;
  --paper-deep:#ebe6d8;
  --card:#fffdf7;
  --ink:#15231c;
  --ink-soft:#2c3b33;
  --muted:#566159;
  --line:#d8d2c2;
  --line-strong:#b9b19d;
  --green:#0e6b50;
  --green-dark:#0a4d3a;
  --green-wash:#e3efe8;
  --amber:#9a5a17;
  --amber-wash:#f7ead7;
  --red:#a23a2b;
  --red-wash:#f8e4df;
  --blue:#2d5d7b;
  --blue-wash:#e2edf3;
  --shadow:0 1px 0 rgba(21,35,28,.04),0 18px 40px -28px rgba(21,35,28,.45);
  --radius:14px;
  --radius-sm:9px;
  --font-display:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC",serif;
  --font-ui:"Segoe UI",system-ui,-apple-system,"Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"Cascadia Code",Consolas,"SFMono-Regular",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--font-ui);-webkit-font-smoothing:antialiased}
a{color:var(--green-dark);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--green)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
img,svg{max-width:100%}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;line-height:1.15}
h1{font-size:clamp(2rem,4.2vw,3.6rem)}
h2{font-size:clamp(1.35rem,2.2vw,1.9rem)}
h3{font-size:1.1rem}
small,.small{font-size:.82rem}
code,kbd,pre{font-family:var(--font-mono)}
.hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:-60px;left:12px;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;border-radius:0 0 8px 8px}
.skip-link:focus{top:0}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
::selection{background:var(--amber-wash)}

/* ---------- shared primitives ---------- */
.eyebrow{font-size:.7rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--green);display:flex;align-items:center;gap:8px}
.eyebrow::before{content:"";width:18px;height:2px;background:currentColor;display:inline-block}
.lede{font-size:1.06rem;color:var(--ink-soft);max-width:62ch}
.muted{color:var(--muted)}
.mono{font-family:var(--font-mono);font-size:.85em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 16px;border:1px solid var(--line-strong);border-radius:999px;background:var(--card);color:var(--ink);font-weight:600;font-size:.9rem;text-decoration:none;transition:background .15s,border-color .15s,transform .15s}
.btn:hover{background:var(--paper-deep);border-color:var(--ink-soft)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--green);border-color:var(--green);color:#fff}
.btn.primary:hover{background:var(--green-dark);border-color:var(--green-dark)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--green-dark);padding-inline:10px}
.btn.ghost:hover{background:var(--green-wash)}
.btn.danger{background:var(--red-wash);border-color:#e2b6ac;color:var(--red)}
.btn.small{min-height:32px;padding:5px 11px;font-size:.8rem}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 11px;font-size:.78rem;font-weight:600;white-space:nowrap}
.chip.green{background:var(--green-wash);border-color:#bcd8ca;color:var(--green-dark)}
.chip.amber{background:var(--amber-wash);border-color:#e4c9a4;color:var(--amber)}
.chip.red{background:var(--red-wash);border-color:#e2b6ac;color:var(--red)}
.chip.blue{background:var(--blue-wash);border-color:#bdd4e0;color:var(--blue)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block;box-shadow:0 0 0 3px var(--green-wash)}
.dot.offline{background:var(--amber);box-shadow:none}
.service-notice{margin:16px 28px;flex-wrap:wrap;align-items:center}
.service-notice>div{flex:1 1 240px}
.service-notice p{margin:6px 0}
.static-materials{scroll-margin-top:78px}
.static-materials h2,.static-materials h3{margin-bottom:12px}
.static-materials ol{padding-left:22px;display:grid;gap:10px}
.dot.warn{background:var(--amber);box-shadow:0 0 0 3px var(--amber-wash)}
.dot.bad{background:var(--red);box-shadow:0 0 0 3px var(--red-wash)}
.panel{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 20px 0}
.panel-head h2{font-size:1.15rem}
.panel-head .sub{color:var(--muted);font-size:.82rem;margin-top:3px}
.panel-body{padding:18px 20px 20px}
.panel.flush .panel-body{padding:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px}
.stat .label{color:var(--muted);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.stat .value{font-family:var(--font-display);font-size:1.75rem;line-height:1.1;margin-top:5px}
.stat .foot{color:var(--muted);font-size:.75rem;margin-top:4px}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:minmax(0,1.55fr) minmax(280px,.85fr)}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.banner{display:flex;gap:12px;align-items:flex-start;padding:13px 15px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--paper);font-size:.88rem}
.banner.warn{background:var(--amber-wash);border-color:#e4c9a4}
.banner.bad{background:var(--red-wash);border-color:#e2b6ac}
.banner.good{background:var(--green-wash);border-color:#bcd8ca}
.banner strong{display:block;margin-bottom:2px}
.empty{text-align:center;padding:34px 18px;color:var(--muted)}
.empty strong{display:block;color:var(--ink);font-family:var(--font-display);font-size:1.1rem;margin-bottom:4px}
.divider{height:1px;background:var(--line);border:0;margin:18px 0}

/* ---------- forms ---------- */
.field{display:grid;gap:6px;margin-bottom:14px}
.field > label,.field-label{font-size:.8rem;font-weight:700;color:var(--ink-soft)}
.field .hint{font-size:.76rem;color:var(--muted)}
input[type=text],input[type=password],input[type=number],input[type=search],select,textarea{
  width:100%;min-height:42px;padding:9px 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s
}
textarea{min-height:96px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px var(--green-wash);outline:none}
input[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--red);box-shadow:0 0 0 3px var(--red-wash)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
fieldset{border:0;padding:0;margin:0}
legend{font-size:.8rem;font-weight:700;color:var(--ink-soft);margin-bottom:6px}

/* ---------- landing ---------- */
.landing{max-width:1180px;margin:0 auto;padding:0 26px 48px}
.site-nav{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-weight:700}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:var(--font-display);font-size:1.15rem}
.brand small{display:block;color:var(--muted);font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;font-weight:700}
.site-nav nav{display:flex;gap:20px;align-items:center;font-size:.85rem;font-weight:600}
.site-nav nav a{color:var(--ink-soft);text-decoration:none}
.site-nav nav a:hover{color:var(--green)}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:46px;align-items:center;padding:64px 0 50px}
.hero h1{margin:14px 0 18px}
.hero h1 em{font-style:italic;color:var(--green)}
.hero .lede{font-size:1.12rem;max-width:54ch}
.hero .btn-row{margin-top:26px}
.hero-note{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap;color:var(--muted);font-size:.78rem}
.hero-note span{display:flex;align-items:center;gap:7px}
.hero-panel{background:var(--ink);color:#eef3ee;border-radius:22px;padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-panel::after{content:"";position:absolute;inset:auto -40px -70px auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(163,196,177,.22),transparent 70%)}
.hero-panel .panel-top{display:flex;justify-content:space-between;align-items:center;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#a9c4b2}
.hero-panel h2{color:#fff;margin:16px 0 6px;font-size:1.4rem}
.hero-panel p{color:#c9d6cc;font-size:.86rem}
.hero-panel ol{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.hero-panel li{display:grid;grid-template-columns:24px 1fr;gap:10px;font-size:.84rem;color:#dfe8df;padding-top:10px;border-top:1px solid rgba(255,255,255,.13)}
.hero-panel li b{color:#fff;font-family:var(--font-mono);font-size:.76rem}
.hero-panel li span{display:block;color:#a9c4b2;font-size:.74rem;margin-top:1px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:12px 0 56px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card .num{font-family:var(--font-mono);font-size:.7rem;color:var(--green);letter-spacing:.12em}
.card h3{margin:12px 0 7px}
.card p{color:var(--muted);font-size:.88rem}
.timeline-band{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:56px}
.timeline-band h2{margin-bottom:6px}
.timeline{list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.timeline li{position:relative;padding:0 14px 0 0;border-top:3px solid var(--line);padding-top:14px}
.timeline li:first-child{border-top-color:var(--green)}
.timeline .time{font-family:var(--font-mono);font-size:.7rem;color:var(--green);font-weight:700}
.timeline .name{display:block;font-weight:700;margin-top:3px;font-size:.9rem}
.timeline .desc{color:var(--muted);font-size:.76rem;display:block;margin-top:3px}
.principles{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start;margin-bottom:54px}
.principles ul{margin:12px 0 0;padding-left:20px;color:var(--ink-soft);font-size:.9rem;display:grid;gap:7px}
.site-footer{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:.76rem}

/* ---------- app shell ---------- */
.shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}
.sidebar{background:var(--ink);color:#dce7de;padding:22px 16px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh;overflow:auto}
.sidebar .brand{color:#fff}
.sidebar .brand small{color:#a9c4b2}
.sidebar .brand-mark{background:#f4f1e7;color:var(--ink)}
.nav-caption{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#8fa899;font-weight:700;padding:0 8px}
.nav{display:grid;gap:3px}
.nav-btn{display:flex;align-items:center;gap:10px;width:100%;padding:10px 11px;border:0;border-radius:9px;background:transparent;color:#cfdcd2;font-size:.85rem;font-weight:600;text-align:left}
.nav-btn .ico{width:20px;text-align:center;color:#8fa899;font-family:var(--font-mono);font-size:.8rem}
.nav-btn:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-btn.active{background:#f4f1e7;color:var(--ink)}
.nav-btn.active .ico{color:var(--green)}
.phase-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:13px}
.phase-card .label{font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;color:#8fa899;font-weight:700}
.phase-card .phase{font-family:var(--font-display);font-size:1.18rem;color:#fff;margin-top:3px}
.phase-card .meta{font-size:.72rem;color:#a9c4b2;margin-top:4px}
.phase-card .bar{height:4px;background:rgba(255,255,255,.14);border-radius:99px;margin-top:10px;overflow:hidden}
.phase-card .bar i{display:block;height:100%;background:#9fd3b7;border-radius:99px;transition:width .3s}
.sidebar-foot{margin-top:auto;display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12)}
.avatar{width:34px;height:34px;border-radius:50%;background:#f4f1e7;color:var(--ink);display:grid;place-items:center;font-weight:700;font-size:.8rem;flex:none}
.sidebar-foot .who{min-width:0;flex:1}
.sidebar-foot .who b{display:block;color:#fff;font-size:.8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-foot .who span{display:block;color:#8fa899;font-size:.68rem}
.sidebar-foot .logout{border:0;background:transparent;color:#a9c4b2;font-size:1rem;padding:6px}
.main{min-width:0;display:flex;flex-direction:column}
.topbar{height:62px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;background:rgba(244,241,231,.86);backdrop-filter:blur(8px);position:sticky;top:0;z-index:20}
.crumb{min-width:0;font-size:.78rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:0 7px;align-items:center}
.crumb b{color:var(--ink)}
.top-right{display:flex;align-items:center;gap:12px;font-size:.75rem;color:var(--muted)}
.status{display:flex;align-items:center;gap:7px;white-space:nowrap}
.content{padding:26px 28px 54px;max-width:1220px;width:100%;margin:0 auto}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:22px;flex-wrap:wrap}
.page-head h1{font-size:clamp(1.7rem,2.9vw,2.4rem)}
.page-head .sub{color:var(--muted);font-size:.9rem;margin-top:4px;max-width:70ch}
.footer-note{border-top:1px solid var(--line);margin-top:34px;padding-top:16px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.72rem}

/* ---------- login ---------- */
.login-wrap{min-height:calc(100vh - 62px);display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:44px;max-width:1060px;margin:0 auto;padding:34px 28px}
.login-story h1{font-size:clamp(2rem,3.6vw,3.1rem);margin:14px 0 16px}
.login-story .lede{font-size:1rem}
.login-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}
.login-card h2{font-size:1.4rem;margin-bottom:4px}
.login-card .sub{color:var(--muted);font-size:.85rem;margin-bottom:18px}
.login-card .fine{color:var(--muted);font-size:.72rem;margin-top:12px}
.form-error{color:var(--red);font-size:.8rem;font-weight:600;min-height:1.2em;margin-top:8px}

/* ---------- stages ---------- */
.stage-line{display:flex;gap:0;margin:6px 0 18px;flex-wrap:wrap}
.stage{flex:1;min-width:92px;position:relative;padding:11px 10px 10px;border-top:3px solid var(--line);color:var(--muted);font-size:.72rem;font-weight:600}
.stage .n{font-family:var(--font-mono);font-size:.72rem;display:block;color:var(--line-strong)}
.stage.done{border-top-color:#9fc4b1;color:var(--ink-soft)}
.stage.done .n{color:var(--green)}
.stage.now{border-top-color:var(--green);color:var(--ink);background:linear-gradient(to bottom,var(--green-wash),transparent)}
.stage.now .n{color:var(--green)}
.stage.now::after{content:"Current";position:absolute;right:8px;top:9px;font-size:.68rem;background:var(--green);color:#fff;padding:2px 6px;border-radius:99px}

/* ---------- tasks ---------- */
.task-list{display:grid;gap:12px}
.task{border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;background:var(--card);display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:start}
.task .idx{width:30px;height:30px;border-radius:50%;background:var(--paper-deep);display:grid;place-items:center;font-family:var(--font-mono);font-size:.75rem;font-weight:700;color:var(--green-dark)}
.task.done .idx{background:var(--green);color:#fff}
.task h3{font-family:var(--font-ui);font-size:.95rem}
.task p{color:var(--muted);font-size:.83rem;margin-top:4px}
.task .observe{font-size:.78rem;color:var(--ink-soft);margin-top:7px;padding-left:11px;border-left:2px solid var(--line)}
.task .actions{display:flex;flex-direction:column;gap:6px}

/* ---------- records + query ---------- */
.record-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--line)}
.record-list{max-height:430px;overflow:auto;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.record{display:grid;grid-template-columns:26px 1fr auto;gap:10px;align-items:center;padding:10px 13px;border-bottom:1px solid #eee9dd;font-size:.82rem}
.record:last-child{border-bottom:0}
.record:hover{background:#fbf8ee}
.record input{width:17px;height:17px;accent-color:var(--green)}
.record .rid{font-family:var(--font-mono);font-size:.72rem;color:var(--muted)}
.record .features{display:flex;flex-wrap:wrap;gap:4px;margin-top:3px}
.record .features span{background:var(--paper);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:.72rem;color:var(--ink-soft)}
.record .label{font-size:.7rem;color:var(--blue);font-weight:700}
.query-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}
.query-bar .grow{flex:1}
.result-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0}
.result-summary .box{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.result-summary .box b{display:block;font-family:var(--font-display);font-size:1.3rem}
.result-summary .box span{font-size:.68rem;color:var(--muted)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--radius-sm)}
table.data{width:100%;border-collapse:collapse;font-size:.8rem;background:#fff}
table.data th{text-align:left;padding:9px 11px;background:var(--paper);border-bottom:1px solid var(--line);font-size:.68rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
table.data td{padding:9px 11px;border-bottom:1px solid #f0ece0;vertical-align:middle}
table.data tr:last-child td{border-bottom:0}
table.data tr:hover td{background:#fbf8ee}
.prob{display:flex;align-items:center;gap:7px;min-width:130px}
.prob .track{flex:1;height:7px;background:var(--paper-deep);border-radius:99px;overflow:hidden}
.prob .track i{display:block;height:100%;background:var(--green);border-radius:99px}
.prob .track i.hi{background:var(--amber)}
.prob .pct{font-family:var(--font-mono);font-size:.72rem;width:44px;text-align:right}
.conf{font-family:var(--font-mono);font-weight:700}

/* ---------- notes ---------- */
.note-list{display:grid;gap:10px}
.note-card{border:1px solid var(--line);border-left:4px solid var(--green);border-radius:8px;background:var(--card);padding:13px 15px}
.note-card.sev-3,.note-card.sev-4{border-left-color:var(--red)}
.note-card.sev-2{border-left-color:var(--amber)}
.note-card .meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:.68rem;color:var(--muted);margin-bottom:5px}
.note-card .obs{font-size:.86rem;color:var(--ink)}
.note-card .fix{font-size:.78rem;color:var(--muted);margin-top:5px}
.sev{font-weight:700;font-size:.68rem;padding:2px 7px;border-radius:99px;background:var(--paper-deep);color:var(--ink-soft)}
.sev.s3,.sev.s4{background:var(--red-wash);color:var(--red)}
.sev.s2{background:var(--amber-wash);color:var(--amber)}

/* ---------- likert ---------- */
.likert{display:grid;gap:10px}
.likert-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:#fff}
.likert-row .q{font-size:.85rem}
.likert-row .q small{display:block;color:var(--muted);font-size:.7rem;margin-top:2px}
.likert-options{display:flex;gap:4px}
.likert-options label{width:38px;height:38px;border:1px solid var(--line);border-radius:8px;display:grid;place-items:center;font-size:.75rem;font-weight:700;color:var(--muted);cursor:pointer;background:var(--card)}
.likert-options input{position:absolute;opacity:0;width:1px;height:1px}
.likert-options label:hover{border-color:var(--green);color:var(--green)}
.likert-options input:checked + span{display:grid;place-items:center;width:100%;height:100%;border-radius:6px;background:var(--green);color:#fff}
.likert-options label:has(input:focus-visible){outline:3px solid var(--amber);outline-offset:2px}
.likert-options label span{display:grid;place-items:center;width:100%;height:100%}
.likert-scale{display:flex;justify-content:space-between;font-size:.72rem;color:var(--muted);padding:0 2px}

/* ---------- teacher ---------- */
.run-picker{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.run-picker select{min-width:220px}
.feed{display:grid;gap:0;max-height:430px;overflow:auto;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.feed-row{display:grid;grid-template-columns:110px 74px 1fr;gap:10px;padding:9px 12px;border-bottom:1px solid #f0ece0;font-size:.78rem}
.feed-row:last-child{border-bottom:0}
.feed-row .when{font-family:var(--font-mono);font-size:.72rem;color:var(--muted)}
.feed-row .who{font-weight:700;font-size:.72rem;color:var(--green-dark)}
.feed-row .what{color:var(--ink-soft)}
.bars{display:grid;gap:8px}
.bar-row{display:grid;grid-template-columns:minmax(120px,1.1fr) 2fr 38px;gap:10px;align-items:center;font-size:.76rem}
.bar-row .track{height:8px;background:var(--paper-deep);border-radius:99px;overflow:hidden}
.bar-row .track i{display:block;height:100%;background:var(--green);border-radius:99px}
.bar-row .n{font-family:var(--font-mono);text-align:right;font-size:.7rem;color:var(--muted)}
.table-actions{display:flex;gap:5px;flex-wrap:wrap}
.group-row td{vertical-align:top}

/* ---------- dialog + toast ---------- */
dialog{border:0;border-radius:16px;padding:0;max-width:min(92vw,560px);width:100%;box-shadow:0 30px 80px -30px rgba(0,0,0,.5);background:var(--card);color:var(--ink)}
dialog::backdrop{background:rgba(21,35,28,.45);backdrop-filter:blur(2px)}
.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 20px 0}
.dialog-head h2{font-size:1.2rem}
.dialog-body{padding:14px 20px 20px}
.dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:0 20px 20px}
.toast{position:fixed;right:18px;bottom:18px;z-index:80;background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;font-size:.84rem;box-shadow:0 20px 40px -20px rgba(0,0,0,.6);max-width:min(90vw,420px)}
.toast.bad{background:var(--red)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .shell{grid-template-columns:210px minmax(0,1fr)}
  .content{padding:22px}
  .grid.two{grid-template-columns:minmax(0,1fr)}
  .hero{grid-template-columns:1fr;gap:30px;padding:44px 0 38px}
  .cards{grid-template-columns:1fr 1fr}
  .principles{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr 1fr}
  .timeline li{padding-bottom:12px}
  .login-wrap{grid-template-columns:1fr;gap:26px}
}
@media (max-width:760px){
  .shell{display:block}
  .sidebar{position:static;height:auto;padding:14px 16px;display:block}
  .sidebar .nav-caption,.phase-card,.sidebar-foot{display:none}
  .nav{display:flex;overflow:auto;gap:5px;margin-top:10px}
  .nav-btn{width:auto;white-space:nowrap;padding:8px 11px;font-size:.78rem}
  .topbar{padding:8px 16px;min-height:54px;height:auto;flex-wrap:wrap;gap:8px}
  .top-right{flex-wrap:wrap;gap:8px}
  .content{padding:18px 16px 40px}
  .page-head{align-items:flex-start}
  .cards{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .principles{grid-template-columns:1fr;gap:16px}
  .field-row{grid-template-columns:1fr}
  .result-summary{grid-template-columns:1fr 1fr}
  .task{grid-template-columns:auto 1fr}
  .task .actions{grid-column:1/-1;flex-direction:row}
  .likert-row{grid-template-columns:1fr;gap:8px}
  .feed-row{grid-template-columns:82px 64px 1fr;font-size:.72rem}
  .site-nav nav{display:none}
  .landing{padding:0 16px 36px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* Group registration stays usable for long rosters and narrow screens. */
.member-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 12px; align-items: end; margin-bottom: 12px; }
.member-row .field { margin: 0; min-width: 0; }
.member-row input { width: 100%; }
.member-row [data-member-remove] { margin-bottom: 2px; }
.members-conflict:not(:empty) { border: 1px solid var(--line); padding: 16px; margin-top: 16px; }
#submission-members { margin-bottom: 20px; }
@media (max-width: 560px) { .member-row { grid-template-columns: minmax(0, 1fr); gap: 8px; padding-bottom: 16px; border-bottom: 1px solid var(--line); } .member-row [data-member-remove] { justify-self: start; } }