:root{
  --navy:#0d1b3e;
  --navy-70:#3a4664;
  --blue:#1a4fa0;
  --orange:#e2680f;
  --paper:#f5f7fa;
  --card:#ffffff;
  --ink:#111a2e;
  --muted:#5b6780;
  --line:#dde3ec;
  --line-soft:#eaeef4;
  --ok:#0f7a52;
  --warn:#9a6700;
  --bad:#b3261e;
  --r:6px;
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  background:var(--paper);color:var(--ink);
  font-size:14px;line-height:1.5;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3{font-family:'Source Serif 4',Georgia,serif;font-weight:600;line-height:1.2}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
a{color:var(--blue)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:3px}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:232px 1fr;min-height:100vh}
.side{background:var(--navy);color:#fff;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:var(--s5) var(--s4) var(--s4);border-bottom:1px solid rgba(255,255,255,.1)}
.brand .mark{display:flex;align-items:center;gap:10px}
.shield{width:26px;height:26px;flex:none}
.brand h1{font-size:16px;color:#fff;letter-spacing:.01em}
.brand p{font-size:11.5px;color:rgba(255,255,255,.55);margin-top:3px}
.nav{padding:var(--s3) var(--s2);flex:1;overflow:auto}
.nav-label{font-size:11px;color:rgba(255,255,255,.4);padding:var(--s3) var(--s3) var(--s1);letter-spacing:.04em}
.nav button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;
  padding:9px var(--s3);border-radius:var(--r);color:rgba(255,255,255,.78);font-size:13.5px;
  transition:background .15s ease,color .15s ease;min-height:38px}
.nav button:hover{background:rgba(255,255,255,.07);color:#fff}
.nav button[aria-current="page"]{background:rgba(255,255,255,.12);color:#fff;font-weight:600}
.nav svg{width:17px;height:17px;flex:none;stroke-width:1.6}
.side-foot{padding:var(--s3) var(--s4) var(--s4);border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:rgba(255,255,255,.55)}
.side-foot strong{display:block;color:#fff;font-size:13px;font-weight:600}

.main{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:var(--s4);padding:var(--s4) var(--s5);
  background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.crumbs{flex:1;min-width:0;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.crumbs button{color:var(--blue);font-size:13px}
.crumbs button:hover{text-decoration:underline}
.crumbs .sep{color:var(--line)}
.crumbs .here{color:var(--ink);font-weight:600}

.lang{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;flex:none}
.lang button{padding:6px 13px;font-size:12.5px;font-weight:600;color:var(--muted);min-height:32px}
.lang button[aria-pressed="true"]{background:var(--navy);color:#fff}
.who{display:flex;align-items:center;gap:9px;flex:none}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:600}
.who span{font-size:13px}

.page{padding:var(--s5);max-width:1180px;width:100%}
.page-head{margin-bottom:var(--s5)}
.page-head h2{font-size:24px}
.page-head p{color:var(--muted);margin-top:5px;max-width:62ch}

/* ---------- primitives ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.card-head{padding:var(--s4);border-bottom:1px solid var(--line-soft);display:flex;align-items:center;gap:var(--s3)}
.card-head h3{font-size:15.5px;flex:1}
.card-head p{font-size:12.5px;color:var(--muted);margin-top:2px}
.card-body{padding:var(--s4)}

.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:var(--r);
  font-size:13.5px;font-weight:600;min-height:38px;border:1px solid transparent;transition:background .15s ease}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:#c65a0b}
.btn-ghost{border-color:var(--line);background:var(--card);color:var(--ink)}
.btn-ghost:hover{background:var(--paper)}
.btn-sm{padding:5px 11px;min-height:32px;font-size:12.5px}
.btn svg{width:15px;height:15px;stroke-width:1.8}

.grid{display:grid;gap:var(--s4)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:var(--s4)}
.stat .k{font-size:12.5px;color:var(--muted)}
.stat .v{font-family:'Source Serif 4',serif;font-size:30px;font-weight:600;margin-top:4px;line-height:1}
.stat .d{font-size:12px;color:var(--muted);margin-top:6px}
.stat .d.up{color:var(--ok)}

table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;font-weight:600;color:var(--muted);
  padding:10px var(--s4);border-bottom:1px solid var(--line);background:#fbfcfe}
td{padding:11px var(--s4);border-bottom:1px solid var(--line-soft);font-size:13.5px;vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr.clickable{cursor:pointer;transition:background .12s ease}
tbody tr.clickable:hover{background:#f8fafd}
td.num{text-align:right}
.linkish{color:var(--blue);font-weight:600}
tbody tr.clickable:hover .linkish{text-decoration:underline}

.tag{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:20px;
  font-size:11.5px;font-weight:600;border:1px solid;white-space:nowrap}
.t-ok{color:var(--ok);border-color:#b7ded0;background:#effaf5}
.t-warn{color:var(--warn);border-color:#e6d5a1;background:#fdf8ec}
.t-bad{color:var(--bad);border-color:#efc3bf;background:#fdf1f0}
.t-mute{color:var(--muted);border-color:var(--line);background:var(--paper)}
.t-navy{color:var(--navy);border-color:#c3cde0;background:#eef2f9}

.field{margin-bottom:var(--s4)}
.field label{display:block;font-size:12.5px;font-weight:600;margin-bottom:5px}
.field .hint{font-size:12px;color:var(--muted);margin-top:5px}
input[type=text],input[type=email],select{width:100%;padding:9px 11px;border:1px solid var(--line);
  border-radius:var(--r);background:var(--card);min-height:38px}
input:focus,select:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px rgba(26,79,160,.13)}
.seg{display:flex;gap:var(--s2)}
.seg label{flex:1;border:1px solid var(--line);border-radius:var(--r);padding:11px var(--s3);
  cursor:pointer;display:flex;gap:9px;align-items:flex-start;transition:border-color .15s,background .15s}
.seg label:has(input:checked){border-color:var(--blue);background:#f2f6fc}
.seg input{margin-top:2px;accent-color:var(--blue)}
.seg .t{font-weight:600;font-size:13.5px;display:block}
.seg .s{font-size:12px;color:var(--muted);display:block;margin-top:1px}

.checks{display:flex;flex-wrap:wrap;gap:var(--s2)}
.checks label{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);
  border-radius:var(--r);padding:7px 11px;cursor:pointer;font-size:13px;min-height:36px}
.checks label:has(input:checked){border-color:var(--blue);background:#f2f6fc;font-weight:600}
.checks input{accent-color:var(--blue)}

.switch{display:flex;align-items:flex-start;gap:var(--s3);padding:var(--s3) 0;border-top:1px solid var(--line-soft)}
.switch:first-child{border-top:none;padding-top:0}
.switch .txt{flex:1}
.switch .txt b{font-size:13.5px;font-weight:600;display:block}
.switch .txt span{font-size:12.5px;color:var(--muted)}
.tog{position:relative;width:42px;height:24px;flex:none;border-radius:20px;background:#c9d2e0;transition:background .18s ease;margin-top:2px}
.tog::after{content:'';position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;
  background:#fff;transition:transform .18s ease;box-shadow:0 1px 2px rgba(0,0,0,.2)}
.tog[aria-checked="true"]{background:var(--ok)}
.tog[aria-checked="true"]::after{transform:translateX(18px)}

.empty{padding:var(--s6) var(--s4);text-align:center;color:var(--muted)}
.empty b{display:block;color:var(--ink);font-size:15px;font-family:'Source Serif 4',serif;margin-bottom:4px}

/* RIASEC inline bars — the signature data element */
.riasec{display:flex;gap:3px;align-items:flex-end;height:26px}
.riasec i{width:11px;background:#c9d5e8;border-radius:1px;position:relative;display:block}
.riasec i.top{background:var(--blue)}
.riasec i.first{background:var(--orange)}
.riasec-key{display:flex;gap:3px;margin-top:3px}
.riasec-key span{width:11px;text-align:center;font-size:9.5px;color:var(--muted);font-weight:600}

.bars{display:flex;flex-direction:column;gap:11px}
.bar-row{display:grid;grid-template-columns:150px 1fr 42px;align-items:center;gap:var(--s3);font-size:13px}
.bar-track{height:9px;background:var(--line-soft);border-radius:5px;overflow:hidden}
.bar-fill{height:100%;background:var(--blue);border-radius:5px}
.bar-fill.alt{background:var(--navy)}
.bar-row .n{text-align:right;color:var(--muted);font-size:12.5px}

.profile-head{display:flex;gap:var(--s4);align-items:flex-start;flex-wrap:wrap}
.profile-head .id{flex:1;min-width:240px}
.profile-head h3{font-size:20px}
.profile-head .meta{color:var(--muted);font-size:13px;margin-top:3px}
.code{font-family:'Source Serif 4',serif;font-size:34px;font-weight:700;letter-spacing:.08em;color:var(--navy);line-height:1}
.code-lab{font-size:12px;color:var(--muted);margin-top:2px}

.log{border-left:2px solid var(--line);margin-left:6px}
.log-row{padding:0 0 var(--s4) var(--s4);position:relative;font-size:13px}
.log-row::before{content:'';position:absolute;left:-5px;top:6px;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.log-row .t{font-size:12px;color:var(--muted)}

.hidden{display:none !important}
@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;align-items:center;overflow-x:auto}
  .brand{border-bottom:none;border-right:1px solid rgba(255,255,255,.1);flex:none}
  .brand p,.nav-label,.side-foot{display:none}
  .nav{display:flex;gap:var(--s1);padding:var(--s2)}
  .nav button{white-space:nowrap}
  .g4,.g3,.g2{grid-template-columns:1fr}
  .page{padding:var(--s4)}
  .bar-row{grid-template-columns:110px 1fr 38px}
}
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important}}
/* ===================== additions for the live app ===================== */

/* --- sign in ------------------------------------------------------- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:var(--s4);
  background:linear-gradient(160deg,#0d1b3e 0%,#16294f 100%)}
.auth-card{background:var(--card);border-radius:10px;padding:var(--s6);width:100%;max-width:400px;
  box-shadow:0 18px 50px rgba(0,0,0,.28)}
.auth-brand{display:flex;align-items:center;gap:10px;margin-bottom:var(--s5)}
.auth-brand h1{font-size:19px}
.auth-card h2{font-size:20px;margin-bottom:4px}
.auth-card .sub{color:var(--muted);font-size:13px;margin-bottom:var(--s5)}
.auth-card .btn{width:100%;justify-content:center;margin-top:var(--s2)}
.msg{padding:10px 12px;border-radius:var(--r);font-size:13px;margin-bottom:var(--s4);border:1px solid}
.msg-err{color:var(--bad);border-color:#efc3bf;background:#fdf1f0}
.msg-ok{color:var(--ok);border-color:#b7ded0;background:#effaf5}
.msg-info{color:var(--navy);border-color:#c3cde0;background:#eef2f9}

/* --- loading ------------------------------------------------------- */
.skel{background:linear-gradient(90deg,#eef1f6 25%,#e3e8f0 50%,#eef1f6 75%);
  background-size:200% 100%;animation:sh 1.3s linear infinite;border-radius:4px;height:13px}
@keyframes sh{0%{background-position:200% 0}100%{background-position:-200% 0}}
.loading-rows td{padding:14px var(--s4)}
.spinner{width:16px;height:16px;border:2px solid var(--line);border-top-color:var(--blue);
  border-radius:50%;animation:spin .7s linear infinite;display:inline-block;vertical-align:-3px}
@keyframes spin{to{transform:rotate(360deg)}}

/* --- test runner --------------------------------------------------- */
.runner{position:fixed;inset:0;background:var(--paper);z-index:100;display:flex;flex-direction:column}
.runner-bar{display:flex;align-items:center;gap:var(--s4);padding:var(--s3) var(--s4);
  background:var(--navy);color:#fff}
.runner-bar h3{font-size:15px;color:#fff;flex:1;min-width:0;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis}
.runner-bar .state{font-size:12.5px;color:rgba(255,255,255,.7)}
.runner-bar button{color:#fff;border:1px solid rgba(255,255,255,.3);padding:6px 12px;
  border-radius:var(--r);font-size:13px}
.runner iframe{flex:1;width:100%;border:none;background:#fff}

/* --- misc ---------------------------------------------------------- */
.pill-row{display:flex;gap:var(--s2);flex-wrap:wrap;margin-bottom:var(--s4)}
.pill{padding:6px 13px;border:1px solid var(--line);border-radius:20px;font-size:13px;background:var(--card)}
.pill[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.mono{font-variant-numeric:tabular-nums}

/* ======================= mobile ========================================
   Two structural problems on a phone: the sidebar eats the screen, and data
   tables are wider than any phone. Below 760px the sidebar becomes a bottom
   tab bar (thumb-reachable, and it survives the on-screen keyboard), and each
   table row becomes a stacked card with its column name as a label. Cards beat
   horizontal scrolling here: a parent checking their child's progress should
   not have to swipe sideways to find the number.
   ===================================================================== */

@media (max-width: 760px) {
  :root { --s5: 16px; --s6: 20px; }

  .shell { grid-template-columns: 1fr; }

  /* sidebar -> bottom tab bar */
  .side {
    position: fixed; bottom: 0; left: 0; right: 0; top: auto;
    height: auto; flex-direction: row; z-index: 50;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    border-top: 1px solid rgba(255,255,255,.14);
  }
  .brand, .side-foot, .nav-label { display: none; }
  .nav {
    display: flex; width: 100%; padding: 4px 2px; gap: 0;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav button {
    flex: 1 0 auto; flex-direction: column; gap: 3px;
    padding: 7px 10px; min-height: 52px; font-size: 10.5px;
    text-align: center; white-space: nowrap; border-radius: 8px;
  }
  .nav svg { width: 20px; height: 20px; }
  .main { padding-bottom: 64px; }

  /* top bar */
  .topbar { padding: 10px var(--s4); gap: var(--s2); flex-wrap: wrap; }
  .crumbs { order: 3; flex-basis: 100%; font-size: 12px; }
  .who span { display: none; }
  .page { padding: var(--s4) var(--s3); }
  .page-head h2 { font-size: 20px; }
  .page-head .btn { width: 100%; justify-content: center; }

  /* stat grid: two up, not four */
  .g4 { grid-template-columns: 1fr 1fr; }
  .g3, .g2 { grid-template-columns: 1fr; }
  .stat { padding: var(--s3); }
  .stat .v { font-size: 24px; }

  /* tables -> stacked cards */
  table, thead, tbody, th, td, tr { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tbody tr {
    border: 1px solid var(--line); border-radius: var(--r);
    margin-bottom: 10px; padding: 4px 0; background: var(--card);
  }
  tbody td {
    border: none; padding: 7px var(--s4);
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
  }
  tbody td::before {
    content: attr(data-label);
    font-size: 11.5px; font-weight: 600; color: var(--muted);
    flex: none;
  }
  tbody td:empty { display: none; }
  td.num { text-align: left; }
  tbody tr.clickable:hover { background: var(--card); }
  tbody tr.clickable:active { background: #f2f6fc; }

  /* forms and bars */
  .bar-row { grid-template-columns: 1fr; gap: 4px; }
  .bar-row .n { text-align: left; }
  .seg { flex-direction: column; }
  .card-head { flex-wrap: wrap; }
  .btn { min-height: 44px; }           /* comfortable touch target */
  input, select { font-size: 16px; }   /* stops iOS zooming on focus */

  .runner-bar h3 { font-size: 13px; }
}

@media (max-width: 380px) {
  .g4 { grid-template-columns: 1fr; }
  .nav button span { display: none; }
  .nav button { min-height: 44px; }
}

/* ===================== result page =====================
   Shown after a student finishes. Deliberately calmer than the rest of the
   app: one card on a quiet background, generous spacing, nothing competing
   with the result itself. A teenager reading their own profile should not
   feel like they are looking at a dashboard. */
.result-scroll{flex:1;overflow:auto;background:var(--paper);padding:28px 16px 48px}
.result-wrap{max-width:620px;margin:0 auto}
.res-card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:28px 26px;box-shadow:0 4px 22px rgba(13,27,62,.06)}
.res-head{display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.res-head > div{flex:1;min-width:220px}
.res-kicker{font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:4px}
.res-head h2{font-size:21px;line-height:1.25}
.res-meta{font-size:13px;color:var(--muted);margin-top:4px}

.res-code{display:flex;align-items:baseline;gap:14px;background:#f2f6fc;
  border-radius:8px;padding:18px 20px;margin-top:20px;flex-wrap:wrap}
.res-code .code{font-family:'Source Serif 4',Georgia,serif;font-size:38px;font-weight:700;
  letter-spacing:.08em;color:var(--navy);line-height:1}
.res-code .code-lab{font-size:13px;color:var(--muted)}

.res-explain{margin-top:26px;padding-top:20px;border-top:1px solid var(--line-soft)}
.res-explain h3{font-size:15px;margin-bottom:10px}
.res-explain p{font-size:14px;color:var(--ink);margin-bottom:9px;line-height:1.55}
.res-explain p b{color:var(--navy)}
.res-rank{margin:0 0 0 20px;font-size:14px}
.res-rank li{margin-bottom:6px}

.res-foot{margin-top:24px;padding-top:16px;border-top:1px solid var(--line-soft);
  font-size:12.5px;color:var(--muted);font-style:italic;line-height:1.5}

/* results withheld */
.res-held{text-align:center;padding:44px 26px}
.res-tick{width:54px;height:54px;border-radius:50%;background:#effaf5;color:var(--ok);
  display:grid;place-items:center;margin:0 auto 18px}
.res-tick svg{width:26px;height:26px}
.res-held h2{font-size:20px;margin-bottom:8px}
.res-held p{color:var(--muted);font-size:14px;max-width:38ch;margin:0 auto;line-height:1.55}

@media (max-width:560px){
  .result-scroll{padding:16px 12px 40px}
  .res-card{padding:22px 18px;border-radius:10px}
  .res-head h2{font-size:18px}
  .res-code .code{font-size:30px}
  .res-head .btn{width:100%;justify-content:center}
}