/* Q1 Publication Lab — visual identity
   Palette: petrol #1F4E5F (ink of a journal cover), deep slate #16232A,
   paper #F4F6F5 (cool paper, not cream), marigold #E8A33D (the thread),
   moss #5E7D63 (supports), brick #B54A35 (contradicts / errors)          */
:root{
  --petrol:#1F4E5F; --petrol-d:#16323C; --slate:#16232A;
  --paper:#F4F6F5; --card:#FFFFFF; --line:#DDE4E3;
  --gold:#E8A33D; --gold-d:#C6841F;
  --moss:#5E7D63; --brick:#B54A35; --muted:#5C6B70;
  --r:10px; --shadow:0 1px 3px rgba(22,35,42,.08),0 8px 24px rgba(22,35,42,.06);
  --disp:'Fraunces',Georgia,serif; --body:'Public Sans',system-ui,sans-serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);background:var(--paper);color:var(--slate);font-size:15px;line-height:1.55}
.hidden{display:none!important}
h1,h2,h3{font-family:var(--disp);font-weight:650;color:var(--petrol-d);line-height:1.2}
h1{font-size:26px;margin:0 0 6px} h2{font-size:20px;margin:22px 0 8px} h3{font-size:16px;margin:14px 0 6px}
a{color:var(--petrol)}
button{font-family:var(--body)}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ── auth ── */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:linear-gradient(160deg,var(--petrol-d) 0%,var(--petrol) 55%,#2A6275 100%)}
.auth-card{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:34px;max-width:430px;width:100%}
.auth-sub{color:var(--muted);font-size:13.5px;margin:8px 0 18px}
.brand{font-family:var(--disp);font-size:24px;color:var(--petrol-d)}
.brand.small{font-size:18px;white-space:nowrap}
.brand-mark{background:var(--petrol);color:#fff;border-radius:8px;padding:2px 8px;margin-right:6px;font-size:.85em}
.auth-tabs{display:flex;gap:6px;margin-bottom:14px}
.auth-tabs button{flex:1;padding:9px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-weight:600;color:var(--muted)}
.auth-tabs button.on{background:var(--petrol);color:#fff;border-color:var(--petrol)}
label{display:block;font-size:13px;font-weight:600;color:var(--petrol-d);margin-bottom:10px}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:var(--body);margin-top:4px;background:#fff}
textarea{min-height:84px;resize:vertical}
.err{color:var(--brick);font-size:13px;margin-top:8px;min-height:18px}

/* ── buttons ── */
.btn{border:1px solid var(--line);background:#fff;color:var(--petrol-d);border-radius:8px;padding:8px 14px;font-size:13.5px;font-weight:600;cursor:pointer;transition:background .15s}
.btn:hover{background:#EFF3F2}
.btn.primary{background:var(--petrol);border-color:var(--petrol);color:#fff}
.btn.primary:hover{background:var(--petrol-d)}
.btn.gold{background:var(--gold);border-color:var(--gold-d);color:#3A2A08}
.btn.gold:hover{background:var(--gold-d);color:#fff}
.btn.danger{color:var(--brick);border-color:#E5C4BC}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.wide{width:100%;padding:11px}
.btn.sm{padding:4px 9px;font-size:12.5px}

/* ── shell ── */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:16px;padding:10px 18px;
  background:var(--petrol-d);color:#fff;flex-wrap:wrap}
.topbar .brand{color:#fff}
#mainNav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.navbtn{background:transparent;border:none;color:#C8D6DB;padding:8px 11px;border-radius:8px;cursor:pointer;font-size:13.5px;font-weight:600}
.navbtn:hover{background:rgba(255,255,255,.1);color:#fff}
.navbtn.on{background:var(--gold);color:#3A2A08}
.userbox{display:flex;align-items:center;gap:8px;color:#fff;font-size:13px}

.layout{display:grid;grid-template-columns:210px 1fr;gap:0;min-height:calc(100vh - 58px)}
main{padding:22px 26px;max-width:1250px;width:100%}

/* ── golden thread rail (signature) ── */
.thread{background:#fff;border-right:1px solid var(--line);padding:20px 14px;position:sticky;top:58px;height:calc(100vh - 58px);overflow:auto}
.thread-title{font-family:var(--disp);font-size:15px;color:var(--petrol-d);margin-bottom:12px}
.thread-steps{position:relative;padding-left:18px}
.thread-steps::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tstep{position:relative;padding:7px 0 7px 6px;font-size:12.5px;color:var(--muted);cursor:pointer}
.tstep:hover{color:var(--petrol)}
.tstep::before{content:"";position:absolute;left:-16.5px;top:12px;width:11px;height:11px;border-radius:50%;
  background:#fff;border:2px solid var(--line)}
.tstep.done{color:var(--petrol-d);font-weight:600}
.tstep.done::before{background:var(--gold);border-color:var(--gold-d)}
.tstep.part::before{background:#F6DDB2;border-color:var(--gold)}
.tstep .pct{float:right;font-size:11px;color:var(--gold-d)}
.thread-note{font-size:11.5px;color:var(--muted);margin-top:16px;border-top:1px dashed var(--line);padding-top:12px;font-style:italic}

/* ── cards / grids ── */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:12px 0}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.kpi .n{font-family:var(--disp);font-size:26px;color:var(--petrol)}
.kpi .l{font-size:12px;color:var(--muted)}
.kpi.warn .n{color:var(--brick)} .kpi.ok .n{color:var(--moss)}
.pill{display:inline-block;border-radius:99px;padding:2px 9px;font-size:11.5px;font-weight:700}
.pill.q1{background:#E4EFE7;color:#2C5638} .pill.gap{background:#F9E9D2;color:#8A5B10}
.pill.sup{background:#E4EFE7;color:#2C5638} .pill.con{background:#F6E0DA;color:#8C3423}
.pill.mix{background:#F9E9D2;color:#8A5B10} .pill.ctx{background:#E5EAEC;color:#3E5560}
.pill.role-iv{background:#E0EBF0;color:#1F4E5F}.pill.role-med{background:#F9E9D2;color:#8A5B10}
.pill.role-dv{background:#E4EFE7;color:#2C5638}.pill.role-mod{background:#EEE4F2;color:#6A3B7E}.pill.role-ctrl{background:#E5EAEC;color:#4A5A61}

/* ── guideline + example blocks (education-first) ── */
.guide{border-left:4px solid var(--gold);background:#FDF7EC;border-radius:0 8px 8px 0;padding:10px 14px;font-size:13px;margin:8px 0}
.guide b{color:var(--gold-d)}
.example{border-left:4px solid var(--moss);background:#F1F6F2;border-radius:0 8px 8px 0;padding:10px 14px;font-size:13px;margin:8px 0;color:#33473A}
.example::before{content:"Worked example — running case: chatbot anthropomorphism → engagement → repurchase";display:block;font-weight:700;font-size:11.5px;color:var(--moss);margin-bottom:4px;text-transform:uppercase;letter-spacing:.4px}

/* ── tables ── */
.tbl-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%;font-size:13px}
th{background:var(--petrol);color:#fff;text-align:left;padding:8px 10px;font-weight:600;white-space:nowrap;position:sticky;top:0}
td{border-top:1px solid var(--line);padding:7px 10px;vertical-align:top}
tr:nth-child(even) td{background:#FAFBFB}
td input,td select,td textarea{margin:0;font-size:12.5px;padding:5px 7px;min-width:110px}
td textarea{min-height:40px}
.searchbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.searchbar input[type=search]{flex:1;min-width:220px;margin:0}
.searchbar select{width:auto;margin:0}

/* ── worksheets accordion ── */
.ws{border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:12px;overflow:hidden}
.ws-head{display:flex;align-items:center;gap:12px;padding:13px 16px;cursor:pointer;background:#fff}
.ws-head:hover{background:#F6F8F8}
.ws-num{font-family:var(--disp);font-size:18px;color:var(--gold-d);min-width:34px}
.ws-head h3{margin:0;flex:1}
.ws-body{padding:4px 18px 18px;border-top:1px solid var(--line)}
.ws-status{font-size:12px;font-weight:700}
.ws-status.done{color:var(--moss)} .ws-status.part{color:var(--gold-d)} .ws-status.todo{color:var(--muted)}
.savebar{display:flex;gap:10px;align-items:center;margin-top:12px}
.savedmsg{font-size:12.5px;color:var(--moss)}

/* framework builder */
#fwCanvas{width:100%;height:520px;border:1px solid var(--line);border-radius:var(--r);background:
  repeating-linear-gradient(0deg,#fff,#fff 24px,#F6F8F8 24px,#F6F8F8 25px);touch-action:none}
.fw-node{cursor:grab} .fw-node:active{cursor:grabbing}
.fw-tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px;align-items:center}

/* toast + modal */
#toastHost{position:fixed;bottom:18px;right:18px;z-index:99;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--slate);color:#fff;padding:11px 16px;border-radius:10px;box-shadow:var(--shadow);font-size:13.5px;max-width:340px;animation:pop .2s}
.toast.ok{border-left:4px solid var(--moss)} .toast.err{border-left:4px solid var(--brick)}
@keyframes pop{from{transform:translateY(8px);opacity:0}}
.modal-bg{position:fixed;inset:0;background:rgba(22,35,42,.55);z-index:80;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:14px;max-width:760px;width:100%;max-height:88vh;overflow:auto;padding:22px}
.modal h2{margin-top:0}

/* feedback panel */
.fb-panel{border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:16px}
.fb-grade{font-family:var(--disp);font-size:42px;color:var(--petrol)}
.fb-list{font-size:13.5px;white-space:pre-wrap;background:#F6F8F8;border-radius:8px;padding:12px;margin-top:10px}
.timerbox{font-variant-numeric:tabular-nums;background:var(--petrol-d);color:var(--gold);border-radius:8px;padding:6px 12px;font-weight:700;display:inline-block}

.charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.chartbox{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px;height:300px}
.help{font-size:12.5px;color:var(--muted)}
.copy{user-select:all;background:#F6F8F8;border:1px dashed var(--line);border-radius:8px;padding:8px 10px;font-size:12.5px;word-break:break-all}

/* survey public page reuses these */
.pub-wrap{max-width:680px;margin:0 auto;padding:26px 16px}
.q-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-bottom:12px}
.q-card .req{color:var(--brick)}
.likert{display:flex;gap:6px;flex-wrap:wrap}
.likert label{display:flex;flex-direction:column;align-items:center;font-weight:400;font-size:12px;background:#F6F8F8;border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer}
.likert input{width:auto;margin:0 0 4px}

/* ── responsive ── */
@media (max-width:1000px){
  .layout{grid-template-columns:1fr}
  .thread{position:static;height:auto;border-right:none;border-bottom:1px solid var(--line)}
  .thread-steps{display:flex;flex-wrap:wrap;gap:4px;padding-left:0}
  .thread-steps::before{display:none}
  .tstep{padding:4px 8px;border:1px solid var(--line);border-radius:99px}
  .tstep::before{display:none}
  .thread-note{display:none}
  .grid2,.grid3{grid-template-columns:1fr}
  main{padding:14px}
}
@media (max-width:640px){
  .topbar{padding:8px 10px}
  #mainNav{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap}
  .userbox span{display:none}
}