/* Pilot Interview Handbook — shared styles for every chapter page and the
   free sample. Page-specific bits (sample badge, upsell) stay inline on the
   page that needs them. Edit here once; every chapter follows. */

:root{
  --surface:#191D23; --surface-2:#232932; --surface-3:#2C333D;
  --paper:#F3F3EE; --paper-2:#E8E8E1; --paper-3:#FBFBF7;
  --ink:#14181C; --ink-soft:#5A6068; --rule:#C7C7BE;
  --magenta:#C81C82; --amber:#B4700F; --green:#38835B; --cyan:#2A6E88;
  --dim:#7C848E;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--surface);color:var(--paper);
  font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;
  padding:26px 18px 70px;}
.shell{max-width:720px;margin:0 auto;}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:.12em;text-transform:uppercase;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--magenta);outline-offset:2px;}

/* ---- chapter head ---- */
.crumb{font-size:10.5px;color:var(--dim);margin-bottom:7px;}
h1{font-family:'Space Grotesk',sans-serif;font-size:29px;letter-spacing:-.02em;margin:0 0 14px;font-weight:600;}
.stats{display:flex;gap:0;border:1px solid var(--surface-3);border-radius:3px;overflow:hidden;margin-bottom:8px;}
.stat{flex:1;padding:11px 13px;border-right:1px solid var(--surface-3);}
.stat:last-child{border-right:0;}
.stat b{display:block;font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:600;line-height:1;margin-bottom:5px;}
.stat span{font-size:9.5px;color:var(--dim);font-family:'IBM Plex Mono',monospace;letter-spacing:.1em;text-transform:uppercase;}
.stat.g b{color:var(--green);} .stat.a b{color:var(--amber);} .stat.m b{color:var(--magenta);}
.bar{height:4px;background:var(--surface-2);border-radius:2px;overflow:hidden;display:flex;margin-bottom:22px;}
.bar i{height:100%;transition:width .4s ease;}
.bar .g{background:var(--green);} .bar .a{background:var(--amber);} .bar .m{background:var(--magenta);}

/* ---- mode switch ---- */
.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--surface-3);
  border:1px solid var(--surface-3);border-radius:3px;margin-bottom:10px;}
.modes button{background:var(--surface-2);border:0;padding:13px 8px;color:var(--dim);text-align:left;}
.modes button b{display:block;font-family:'Space Grotesk',sans-serif;font-size:14px;font-weight:600;
  color:var(--paper);margin-bottom:3px;}
.modes button small{font-size:10px;line-height:1.35;display:block;}
.modes button.on{background:var(--paper);}
.modes button.on b{color:var(--ink);} .modes button.on small{color:var(--ink-soft);}
.crossnote{font-size:12px;color:var(--dim);margin:0 0 8px;line-height:1.5;}
.modehint{font-size:12.5px;color:var(--dim);margin:0 0 20px;line-height:1.5;}
/* Drill is the mode people quietly cheat on by reading silently — say so, loudly.
   Emphasis is graduated: headline → recommendation → reasoning (quieter) → closing punch. */
.modehint.loud{background:rgba(242,169,59,.07);border-left:3px solid #F2A93B;border-radius:3px;
  padding:16px 18px;color:var(--paper);}
.modehint.loud p{margin:0 0 10px;}
.modehint.loud .loud-head{font-family:'Space Grotesk',sans-serif;font-size:16px;font-weight:700;
  color:#F2A93B;letter-spacing:-.01em;margin-bottom:11px;}
.modehint.loud .loud-lead{font-size:13.5px;color:var(--paper);line-height:1.55;}
.modehint.loud .loud-lead b{color:#F2A93B;font-weight:700;}
.modehint.loud .loud-body{font-size:12.5px;color:var(--dim);line-height:1.6;}
.modehint.loud .loud-body b{color:var(--paper);font-weight:600;}
.modehint.loud .loud-contrast{font-size:13px;color:var(--dim);line-height:1.55;}
.modehint.loud .loud-contrast b{color:var(--paper);font-weight:600;}
.modehint.loud .loud-close{font-size:13.5px;font-weight:600;color:#F2A93B;line-height:1.5;
  border-top:1px solid rgba(242,169,59,.22);padding-top:11px;margin:13px 0 0;}
.modehint.loud .loud-ack{margin-top:13px;background:#F2A93B;color:var(--ink);border:0;
  padding:9px 16px;border-radius:3px;font-family:'Inter',sans-serif;font-size:12.5px;font-weight:700;}
.modehint.loud .loud-ack:hover{background:#FFC266;}
/* collapsed state: the box gives its space back, one line stays as a reminder */
.modehint.loud.collapsed{background:none;border-left:0;padding:0;}
.loud-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:rgba(242,169,59,.07);border:0;border-left:3px solid #F2A93B;border-radius:3px;
  padding:10px 14px;color:#F2A93B;font-family:'Inter',sans-serif;font-size:12.5px;font-weight:600;
  text-align:left;}
.loud-toggle:hover{background:rgba(242,169,59,.13);}
.loud-chev{font-size:11px;opacity:.75;}

/* ---- weak set ---- */
.weak{border:1px solid var(--magenta);border-radius:3px;padding:13px 15px;margin-bottom:20px;
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.weak p{margin:0;flex:1;font-size:13.5px;line-height:1.45;min-width:210px;}
.weak p b{color:var(--magenta);}
.weak button{background:var(--magenta);border:0;color:#fff;padding:9px 15px;border-radius:2px;
  font-size:12.5px;font-weight:600;}

/* ---- generic paper panel ---- */
/* no overflow:hidden here — it would stop the sticky rating bar from sticking */
.panel{background:var(--paper);color:var(--ink);border-radius:3px;
  box-shadow:0 18px 40px -20px rgba(0,0,0,.7);}

/* ---- REFERENCE ---- */
.search{width:100%;padding:12px 15px;border:0;border-bottom:1px solid var(--rule);
  background:var(--paper-3);font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--ink);}
.ritem{border-bottom:1px solid var(--rule);}
.ritem:last-child{border-bottom:0;}
.rhead{width:100%;background:none;border:0;padding:13px 16px;text-align:left;display:flex;
  align-items:flex-start;gap:11px;}
.rhead:hover{background:var(--paper-2);}
.rdot{width:8px;height:8px;border-radius:50%;margin-top:6px;flex:0 0 auto;background:var(--rule);}
.rdot.s2{background:var(--green);} .rdot.s1{background:var(--amber);} .rdot.s0{background:var(--magenta);}
.rq{flex:1;font-size:15px;font-weight:500;line-height:1.35;color:var(--ink);}
.rtag{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-soft);white-space:nowrap;margin-top:3px;}
.rbody{display:none;padding:0 16px 16px 35px;}
.ritem.open .rbody{display:block;}
.lay{margin-bottom:12px;}
.lay:last-child{margin-bottom:0;}
.laylab{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;
  display:flex;align-items:center;gap:9px;margin-bottom:6px;}
.laylab i{flex:1;border-bottom:1px dotted var(--rule);height:1px;font-style:normal;}
.lay.say .laylab{color:var(--ink);font-weight:600;}
.lay.note .laylab{color:var(--cyan);}
.lay.bg .laylab{color:var(--amber);}
.lay ul{margin:0;padding-left:18px;}
.lay li{font-size:14.5px;line-height:1.5;margin-bottom:6px;}
.lay.say li{font-size:15.5px;font-weight:500;}
.jump{background:none;border:1px solid var(--rule);border-radius:2px;padding:6px 11px;
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-soft);margin-top:10px;}
.jump:hover{border-color:var(--ink);color:var(--ink);}
mark{background:#FFE79A;color:inherit;border-radius:2px;padding:0 1px;}

/* ---- DRILL ---- */
.meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  padding:15px 20px 0;}
.meta-chips{display:flex;flex-wrap:wrap;gap:7px;}
.chip.ref{border-color:var(--ink);color:var(--ink);font-weight:600;}
.dpos{font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.07em;
  text-transform:uppercase;color:var(--ink);background:var(--paper-2);border:1px solid var(--rule);
  padding:5px 12px;border-radius:20px;white-space:nowrap;}
.chip{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.11em;text-transform:uppercase;
  border:1px solid var(--rule);padding:3px 8px;border-radius:2px;color:var(--ink-soft);}
.chip.t{border-color:var(--cyan);color:var(--cyan);}
.chip.b{border-color:var(--magenta);color:var(--magenta);}
.dfull{margin:10px 20px 0;display:none;}
.dq{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:clamp(20px,4.2vw,25px);
  line-height:1.24;letter-spacing:-.015em;padding:13px 20px 16px;margin:0;}
.gauge{padding:0 20px;}
.gtrack{position:relative;height:7px;background:var(--paper-2);border:1px solid var(--rule);
  border-radius:2px;overflow:hidden;}
.gfill{position:absolute;inset:0 auto 0 0;width:0;background:var(--magenta);}
.gfill.over{background:var(--amber);}
.glegend{display:flex;justify-content:space-between;font-family:'IBM Plex Mono',monospace;
  font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:6px;}
.glegend b{font-size:12px;letter-spacing:.02em;color:var(--ink);}
.glegend b.over{color:var(--amber);}
.ctrl{display:flex;gap:8px;padding:15px 20px 18px;flex-wrap:wrap;}
.btn{border:1px solid var(--ink);background:var(--ink);color:var(--paper);font-size:14px;
  font-weight:600;padding:11px 18px;border-radius:2px;}
.btn.ghost{background:transparent;color:var(--ink);}
.btn.ghost:hover{background:var(--paper-2);}
/* why this card came back — must read at a glance, not blend into the chips */
.prevflag{margin:12px 20px 0;padding:10px 14px;border-radius:3px;border-left:3px solid;
  font-size:13px;font-weight:600;line-height:1.4;}
.prevflag.prev0{background:rgba(200,28,130,.08);border-color:var(--magenta);color:var(--magenta);}
.prevflag.prev1{background:rgba(180,112,15,.10);border-color:var(--amber);color:var(--amber);}
.prevflag.prev2{background:rgba(56,131,91,.10);border-color:var(--green);color:var(--green);}
/* answer area keeps its space at all times, so revealing never shifts the page */
.dlayers{position:relative;border-top:1px solid var(--rule);padding:16px 20px;min-height:104px;}
.dlayers-inner{visibility:hidden;}
.dlayers.show .dlayers-inner{visibility:visible;}
.dlayers-hint{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:var(--paper-3);font-family:'IBM Plex Mono',monospace;font-size:10.5px;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);text-align:center;padding:0 16px;}
.dlayers.show .dlayers-hint{display:none;}
/* sticks to the bottom of the screen while a long answer is being read,
   so the rating buttons are never below the fold */
.rate{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:1px;background:var(--rule);
  border-top:1px solid var(--rule);visibility:hidden;
  position:sticky;bottom:0;z-index:5;box-shadow:0 -10px 22px -14px rgba(0,0,0,.55);}
.rate.show{visibility:visible;}
.rate button{border:0;background:var(--paper);padding:14px 6px;font-family:'IBM Plex Mono',monospace;
  font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);}
.rate button b{display:block;font-family:'Inter',sans-serif;font-size:13px;text-transform:none;
  letter-spacing:0;color:var(--ink);margin-bottom:3px;}
.rate-ico{display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:700;margin-bottom:7px;
  font-family:'Inter',sans-serif;}
.rate-fuzzy .rate-ico{background:rgba(180,112,15,.15);color:var(--amber);}
.rate-clean .rate-ico{background:rgba(56,131,91,.15);color:var(--green);width:34px;height:34px;font-size:17px;}
.rate-fail .rate-ico{background:rgba(200,28,130,.12);color:var(--magenta);}
.rate-fuzzy b{color:var(--amber);}
.rate-clean b{color:var(--green);font-size:15px;}
.rate-fail b{color:var(--magenta);}
.rate-fuzzy:hover{background:#F8F2E7;}
.rate-clean:hover{background:#EFF6F1;}
.rate-fail:hover{background:#FAEFF5;}

/* ---- done state ---- */
.done{padding:44px 24px;text-align:center;}
.done-icon{font-size:34px;margin-bottom:12px;}
.done h2{font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:600;color:var(--ink);margin:0 0 8px;}
.done p{font-size:14px;color:var(--ink-soft);margin:0 0 20px;line-height:1.5;}

/* ---- TEST ---- */
.opts{padding:4px 20px 18px;}
.opt{width:100%;text-align:left;background:var(--paper-3);border:1px solid var(--rule);
  border-radius:2px;padding:13px 15px;margin-bottom:8px;font-size:14.5px;line-height:1.4;color:var(--ink);
  display:flex;gap:11px;}
.opt:hover{border-color:var(--ink);}
.opt em{font-family:'IBM Plex Mono',monospace;font-style:normal;color:var(--ink-soft);flex:0 0 auto;}
.opt.right{border-color:var(--green);background:#EFF6F1;}
.opt.wrong{border-color:var(--magenta);background:#FAEFF5;}
.opt[disabled]{cursor:default;}
.after{border-top:1px solid var(--rule);padding:15px 20px;display:none;}
.after.show{display:block;}
.after .verdict{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:9px;}
.after .verdict.ok{color:var(--green);} .after .verdict.no{color:var(--magenta);}
.after p{margin:0 0 13px;font-size:14.5px;line-height:1.5;}

@media (max-width:560px){
  .modes{grid-template-columns:1fr;}
  .stat{padding:9px 10px;}
  h1{font-size:24px;}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;}}

a{color:inherit;}

/* ---- top bar ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px;flex-wrap:wrap;}
.back{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--dim);text-decoration:none;}
.back:hover{color:var(--paper);}
.navopen{display:inline-flex;align-items:center;gap:8px;background:var(--surface-2);
  border:1px solid var(--surface-3);border-radius:3px;padding:7px 13px;color:var(--paper);
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;}
.navopen:hover{border-color:var(--dim);}

/* ---- chapter drawer ---- */
.navdrawer{position:fixed;inset:0;z-index:60;display:none;}
.navdrawer.open{display:block;}
.navdrawer-backdrop{position:absolute;inset:0;background:rgba(10,14,20,.66);}
.navdrawer-panel{position:absolute;top:0;left:0;bottom:0;width:min(340px,86vw);overflow-y:auto;
  background:var(--surface-2);border-right:1px solid var(--surface-3);padding:20px 18px;
  display:flex;flex-direction:column;gap:14px;}
.navdrawer-head{display:flex;align-items:center;justify-content:space-between;}
.navdrawer-title{font-family:'Space Grotesk',sans-serif;font-size:17px;font-weight:600;color:var(--paper);}
.navdrawer-close{background:none;border:0;color:var(--dim);font-size:15px;padding:4px 6px;}
.navdrawer-close:hover{color:var(--paper);}
.navdrawer-list{display:flex;flex-direction:column;gap:6px;}
.navitem{display:grid;grid-template-columns:auto 1fr;gap:3px 10px;align-items:baseline;
  padding:11px 12px;border-radius:3px;border:1px solid transparent;text-decoration:none;}
a.navitem:hover{background:var(--surface-3);}
.navitem-code{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim);border:1px solid var(--surface-3);
  border-radius:2px;padding:2px 6px;}
.navitem-title{font-size:13.5px;color:var(--paper);line-height:1.35;}
.navitem-meta{grid-column:2;font-family:'IBM Plex Mono',monospace;font-size:10px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--dim);}
.navitem.is-current{background:rgba(242,169,59,.08);border-color:rgba(242,169,59,.35);}
.navitem.is-current .navitem-title{color:#F2A93B;font-weight:600;}
.navitem.is-current .navitem-code{color:#F2A93B;border-color:rgba(242,169,59,.4);}
.navitem.is-soon{opacity:.45;}
.navdrawer-all{margin-top:auto;font-family:'IBM Plex Mono',monospace;font-size:11px;
  letter-spacing:.08em;text-transform:uppercase;color:var(--dim);text-decoration:none;
  border-top:1px solid var(--surface-3);padding-top:14px;}
.navdrawer-all:hover{color:var(--paper);}

/* ---- account chip in the top bar ---- */
.acct{display:inline-flex;align-items:center;gap:10px;font-family:'IBM Plex Mono',monospace;
  font-size:10.5px;letter-spacing:.06em;color:var(--dim);}
.acct-email{max-width:22ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--dim);}
.acct-btn{color:var(--paper);text-decoration:none;border:1px solid var(--surface-3);
  border-radius:3px;padding:5px 11px;text-transform:uppercase;letter-spacing:.08em;white-space:nowrap;}
.acct-btn:hover{border-color:var(--dim);background:var(--surface-2);}
.acct-btn.is-admin{color:#F2A93B;border-color:rgba(242,169,59,.45);}
.acct-btn.is-admin:hover{background:rgba(242,169,59,.1);}
.acct-out{color:var(--dim);text-decoration:none;border:1px solid var(--surface-3);
  border-radius:3px;padding:5px 10px;text-transform:uppercase;letter-spacing:.08em;}
.acct-out:hover{color:var(--paper);border-color:var(--dim);}

/* right-hand group in the free sample top bar */
.topbar-right{display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap;}