/* =====================================================================
   PENNA // PEN TOOL TRAINER
   Art direction (after Hermes/Nous): FLAT. One electric ultramarine field,
   strict bicolor blue + cream, heavy Didone serif display, monospace
   labels, engraved/dotted illustration. No gradients. No glow. No shadow.
   ===================================================================== */

:root{
  --blue:#1d1ae6;        /* electric ultramarine — the field */
  --blue-ink:#1714c0;    /* slightly deeper, for tints on cream */
  --blue-track:#3b38ee;  /* lighter blue for inactive ring track */
  --paper:#f2efe3;       /* warm cream — the ink */
  --paper-2:#dedaca;     /* dim cream */

  --serif:"Playfair Display",Georgia,"Times New Roman",serif;
  --mono:"Space Mono",ui-monospace,Menlo,monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--blue);
  color:var(--paper);
  font-family:var(--mono);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--paper);color:var(--blue)}

#app{min-height:100vh;display:flex;flex-direction:column}
[hidden]{display:none!important}

/* =================== type utilities =================== */
.display{
  font-family:var(--serif);font-weight:800;text-transform:uppercase;
  line-height:.9;letter-spacing:-.01em;margin:0;
  font-size:clamp(56px,9.2vw,128px);
}
.display .period{color:var(--paper)}
.kicker{
  font-family:var(--mono);font-weight:700;font-size:12px;
  letter-spacing:.22em;text-transform:uppercase;margin:0;
  display:inline-flex;align-items:center;gap:.7ch;
}
.kicker .bull{font-size:8px;transform:translateY(-1px);opacity:.85}
.lede{font-family:var(--mono);font-size:14.5px;line-height:1.65;max-width:46ch;opacity:.9}
.dotrule{
  border:none;height:0;margin:24px 0;
  border-top:2px dotted var(--paper);opacity:.85;
}

/* =================== buttons =================== */
.btn{
  font-family:var(--mono);font-weight:700;font-size:12.5px;
  letter-spacing:.1em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:.7ch;
  padding:12px 18px;border-radius:2px;
  border:2px solid var(--paper);background:transparent;color:var(--paper);
  cursor:pointer;transition:background .12s linear,color .12s linear,transform .12s ease;
  white-space:nowrap;
}
.btn:hover{background:var(--paper);color:var(--blue)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn--solid{background:var(--paper);color:var(--blue)}
.btn--solid:hover{background:var(--paper-2);color:var(--blue)}
.btn--ghost{border-color:rgba(242,239,227,.5)}
.btn--ghost:hover{border-color:var(--paper)}
.btn.is-on{background:var(--paper);color:var(--blue)}
.btn--lg{padding:16px 26px;font-size:13.5px;letter-spacing:.12em}
.btn .tri{font-size:11px}
.btn__arrow{transition:transform .15s ease}
.btn:hover .btn__arrow{transform:translateX(4px)}

/* =================== top bar =================== */
.topbar{
  position:sticky;top:0;z-index:30;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;
  padding:14px 28px;background:var(--blue);
  border-bottom:2px solid var(--paper);
}
.topbar__brand{
  display:flex;align-items:baseline;gap:10px;
  background:none;border:none;padding:0;margin:0;color:inherit;cursor:pointer;
  transition:opacity .12s linear;
}
.topbar__brand:hover{opacity:.7}
.topbar__brand:hover .brand-name{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.brand-name{font-family:var(--serif);font-weight:800;font-size:24px;letter-spacing:.02em;line-height:1}
.brand-sub{font-family:var(--mono);font-size:10px;letter-spacing:.24em;opacity:.7}
.topbar__meta .meta-key{font-family:var(--mono);font-weight:700;font-size:12px;letter-spacing:.12em}

.stepper{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.step-pip{
  font-family:var(--mono);font-weight:700;font-size:11px;letter-spacing:.06em;
  display:flex;align-items:center;gap:8px;padding:7px 12px;border-radius:2px;
  border:1.5px solid rgba(242,239,227,.4);color:var(--paper);background:transparent;
  cursor:pointer;text-transform:uppercase;transition:all .12s linear;
}
.step-pip .pip-t{font-weight:400;opacity:.85;text-transform:none}
.step-pip:hover:not(:disabled){border-color:var(--paper)}
.step-pip[disabled]{opacity:.4;cursor:not-allowed}
.step-pip.is-active{background:var(--paper);color:var(--blue);border-color:var(--paper)}
.step-pip.is-done .pip-num::before{content:"✓ "}

.progress{position:absolute;left:0;bottom:-2px;height:2px;width:100%}
.progress__bar{display:block;height:100%;width:0;background:var(--paper);transition:width .5s ease}

/* =================== screens =================== */
#main{flex:1;display:flex;flex-direction:column}
.screen{display:none}
.screen--active{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* =================== ONBOARDING =================== */
.hero{
  max-width:1240px;margin:0 auto;padding:70px 36px 30px;width:100%;
  display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center;
}
.hero__left .kicker{margin-bottom:26px}
.display .period{margin-left:.04em}
.hero .lede{margin:0 0 36px}
.cta__label{font-family:var(--mono);font-weight:700;font-size:11px;letter-spacing:.22em;opacity:.7;margin:0 0 10px}
.cta__hint{font-family:var(--mono);font-size:11px;letter-spacing:.04em;opacity:.6;margin:14px 0 0}

/* framed engraving */
.frame{
  position:relative;border:2px solid var(--paper);
  aspect-ratio:1/1;width:100%;max-width:440px;margin-left:auto;
  display:grid;place-items:center;
}
.frame__tag{position:absolute;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;opacity:.8}
.frame__tag--tl{top:10px;left:12px}
.frame__tag--br{bottom:10px;right:12px}
.hero-art{width:100%;height:100%;display:block}
.hero-art .rays line{stroke:var(--paper);stroke-width:1;opacity:.85}
.hero-art .rays{transform-origin:200px 200px;animation:spin 90s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-art .ring-dot{fill:none;stroke:var(--paper);stroke-width:1.5;stroke-dasharray:1.5 7;opacity:.7}
.hero-art .nib{fill:var(--paper)}
.hero-art .nib-eye{fill:var(--blue)}
.hero-art .emblem-path{fill:none;stroke:var(--paper);stroke-width:3}
.hero-art .emblem-anchor{fill:var(--blue);stroke:var(--paper);stroke-width:2.4}
.hero-art .emblem-handle{stroke:var(--paper);stroke-width:1.4;opacity:.8}
.hero-art .emblem-dot{fill:var(--blue);stroke:var(--paper);stroke-width:2}

/* daily challenge banner */
.daily{
  max-width:1240px;margin:8px auto 0;width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  border:2px solid var(--paper);border-radius:2px;padding:26px 30px;
  background:var(--paper);color:var(--blue);
}
.daily__title{font-family:var(--serif);font-weight:800;font-size:clamp(28px,4vw,42px);margin:10px 0 6px;text-transform:uppercase;line-height:1}
.daily__meta{font-family:var(--mono);font-size:12px;margin:0;opacity:.8}
.daily .kicker .bull{opacity:.7}
.daily__right{display:flex;align-items:center;gap:24px}
.daily__streak{display:flex;align-items:center;gap:10px}
.daily__streak-num{font-family:var(--serif);font-weight:800;font-size:54px;line-height:.8}
.daily__streak-lbl{font-family:var(--mono);font-weight:700;font-size:10px;letter-spacing:.14em;line-height:1.2}
.daily .btn--solid{background:var(--blue);color:var(--paper);border-color:var(--blue)}
.daily .btn--solid:hover{background:var(--blue-ink)}
.daily.is-done{opacity:1}
.daily.is-done .daily__streak-num{color:var(--blue)}

/* module index (grouped strips) */
.modules-wrap{max-width:1240px;margin:36px auto 90px;width:100%;display:flex;flex-direction:column;gap:30px}
.mod-group__head{display:flex;align-items:baseline;gap:14px;margin-bottom:14px}
.mod-group__head h2{font-family:var(--serif);font-weight:800;font-size:22px;text-transform:uppercase;margin:0}
.mod-group__head .tagline{font-family:var(--mono);font-size:11px;letter-spacing:.1em;opacity:.7;text-transform:uppercase}
.modules{
  display:grid;grid-template-columns:repeat(var(--cols,4),1fr);
  border:2px solid var(--paper);border-radius:2px;
}
.mod-card{
  text-align:left;border:none;border-right:2px solid var(--paper);
  background:transparent;color:var(--paper);padding:22px 18px;cursor:pointer;
  transition:background .12s linear,color .12s linear;position:relative;
}
.mod-card:last-child{border-right:none}
.mod-card:hover{background:var(--paper);color:var(--blue)}
.mod-card[disabled]{opacity:.45;cursor:not-allowed}
.mod-card[disabled]:hover{background:transparent;color:var(--paper)}
.mod-card .num{font-family:var(--mono);font-weight:700;font-size:10.5px;letter-spacing:.16em;opacity:.8;display:flex;justify-content:space-between;align-items:center}
.mod-card .best{font-family:var(--mono);font-weight:700;font-size:10px;letter-spacing:.06em}
.mod-card h3{font-family:var(--serif);font-weight:700;font-size:18px;margin:14px 0 8px;line-height:1.05}
.mod-card p{font-family:var(--mono);font-size:11px;line-height:1.5;margin:0;opacity:.85}
.mod-card .lock{position:absolute;top:18px;right:16px;font-size:11px;opacity:.6}

/* =================== LESSON STAGE =================== */
.stage{
  max-width:1280px;margin:0 auto;padding:30px 28px 50px;width:100%;
  display:grid;grid-template-columns:368px 1fr;gap:28px;align-items:start;
}

/* briefing */
.brief{
  position:sticky;top:96px;border:2px solid var(--paper);border-radius:2px;
  padding:26px 24px;background:var(--blue);
}
.brief__index{font-family:var(--mono);font-weight:700;font-size:12px;letter-spacing:.2em;opacity:.7;margin-bottom:10px}
.brief__title{font-family:var(--serif);font-weight:800;font-size:30px;line-height:1.02;margin:0;text-transform:uppercase}
.brief__subtitle{font-family:var(--mono);font-size:12.5px;line-height:1.6;opacity:.85;margin:12px 0 20px}

.brief__diagram{border:2px solid var(--paper);border-radius:2px;overflow:hidden;margin-bottom:20px}
.brief__diagram svg{display:block;width:100%;height:auto}

.brief__steps{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}
.bstep{display:flex;gap:13px;align-items:flex-start}
.bstep__n{
  flex:0 0 26px;height:26px;border-radius:2px;border:2px solid var(--paper);
  display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:12px;
}
.bstep__t{font-family:var(--mono);font-size:12.5px;line-height:1.55;opacity:.9}
.bstep__t b{font-weight:700;opacity:1}
.bstep__t code{font-family:var(--mono);font-weight:700;background:var(--paper);color:var(--blue);padding:0 5px;border-radius:2px}

.keys{display:flex;flex-wrap:wrap;gap:12px;padding-top:18px;border-top:2px dotted rgba(242,239,227,.6)}
.key{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;opacity:.8;text-transform:uppercase;letter-spacing:.04em}
.key kbd{font-family:var(--mono);font-weight:700;font-size:10.5px;color:var(--blue);background:var(--paper);border-radius:2px;padding:2px 7px}

/* workspace */
.workspace{display:flex;flex-direction:column;gap:16px}
.workspace__bar{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.wb-label{opacity:.65}
.wb-right{display:flex;align-items:center;gap:10px}
.stat b{font-weight:700}
.stat-sep{opacity:.4}
#statClosed.is-closed{font-weight:700}

.canvas-wrap{
  position:relative;border:2px solid var(--paper);border-radius:2px;
  overflow:hidden;background:var(--paper);
}
.pen-canvas{display:block;width:100%;height:auto;cursor:crosshair;touch-action:none;outline:none;background:var(--paper)}

/* pen geometry — blue ink on cream paper */
.ghost{stroke:var(--blue);stroke-width:2.4;stroke-dasharray:6 7;opacity:.42;
  stroke-linecap:round;stroke-linejoin:round;animation:ants 16s linear infinite}
.ghost.is-hidden{display:none}
.ghost.is-hint{opacity:.95;stroke-width:3.2;animation:none}
@keyframes ants{to{stroke-dashoffset:-260}}
.ghost-dot{fill:var(--paper);stroke:var(--blue);stroke-width:2}
.ghost-dot.is-hit{fill:var(--blue)}

.user-path{stroke:var(--blue);stroke-width:3.2;stroke-linecap:round;stroke-linejoin:round}
.draft-path{stroke:var(--blue);stroke-width:1.6;stroke-dasharray:3 5;opacity:.55;stroke-linecap:round}

.handle-line{stroke:var(--blue);stroke-width:1.4;opacity:.75}
.handle-dot{fill:var(--paper);stroke:var(--blue);stroke-width:2;cursor:grab}
.anchor{fill:var(--paper);stroke:var(--blue);stroke-width:2.6;cursor:pointer}
.anchor.is-first{stroke-width:3.2}
.anchor.is-current{fill:var(--blue)}
.anchor.can-close{fill:var(--blue);stroke:var(--blue)}
.cursor-marker line{stroke:var(--blue);stroke-width:1;opacity:.45}

/* result overlay — solid blue veil, cream ring */
.result{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;z-index:6;cursor:pointer;
  background:var(--blue);animation:fade .25s ease;padding:28px;text-align:center;
}
.result__badge{position:relative;width:172px;height:172px;display:grid;place-items:center}
.result__ring{
  position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(var(--paper) var(--ring,0%),var(--blue-track) 0);
  -webkit-mask:radial-gradient(farthest-side,transparent 72%,#000 74%);
  mask:radial-gradient(farthest-side,transparent 72%,#000 74%);
}
.result__pct{position:relative;z-index:1;font-family:var(--serif);font-weight:800;font-size:34px;color:var(--paper);line-height:1}
.result__label{font-family:var(--mono);font-weight:700;font-size:11px;letter-spacing:.22em;text-transform:uppercase;opacity:.75}
.result__msg{font-family:var(--mono);font-size:12.5px;max-width:42ch;opacity:.9;line-height:1.55;margin-top:-4px}
.result__dismiss{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;opacity:.5;margin-top:10px}
.result.is-pass .result__label::before{content:"✓ "}

/* toolbar */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.tool-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tool-group--right{margin-left:auto}
.toggle{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-weight:700;
  font-size:11px;letter-spacing:.1em;cursor:pointer;padding:9px 13px;
  border:2px solid rgba(242,239,227,.5);border-radius:2px;user-select:none;
}
.toggle:hover{border-color:var(--paper)}
.toggle input{appearance:none;width:28px;height:15px;border-radius:2px;background:transparent;
  border:1.5px solid var(--paper);position:relative;cursor:pointer}
.toggle input::after{content:"";position:absolute;top:1px;left:1px;width:9px;height:9px;background:var(--paper);transition:transform .12s ease}
.toggle input:checked{background:var(--paper)}
.toggle input:checked::after{transform:translateX(13px);background:var(--blue)}

/* =================== FINISH =================== */
.finish{max-width:820px;margin:0 auto;padding:100px 36px;text-align:center}
.finish .kicker{justify-content:center;margin-bottom:18px}
.finish__title{font-size:clamp(64px,13vw,150px)}
.finish .dotrule{max-width:300px;margin:26px auto}
.finish__lede{margin:0 auto 40px;text-align:center}
.finish__scores{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:2px solid var(--paper);border-radius:2px;margin-bottom:42px}
.score-card{border-right:2px solid var(--paper);padding:18px 10px}
.score-card:last-child{border-right:none}
.score-card .sc-mod{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;opacity:.7;line-height:1.4}
.score-card .sc-pct{font-family:var(--serif);font-weight:800;font-size:30px;margin-top:8px}
.finish__cta{display:flex;justify-content:center}

/* =================== footer =================== */
.site-footer{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  max-width:1240px;margin:0 auto;width:100%;padding:26px 36px 40px;
  border-top:2px solid var(--paper);
}
.foot__brand{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.foot__name{font-family:var(--serif);font-weight:800;font-size:20px;letter-spacing:.02em}
.foot__by{font-family:var(--mono);font-size:11px;letter-spacing:.04em;opacity:.7}
.foot__links{display:flex;gap:10px;flex-wrap:wrap}
.foot__link{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-weight:700;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--paper);text-decoration:none;
  padding:9px 14px;border:2px solid var(--paper);border-radius:2px;
  transition:background .12s linear,color .12s linear;
}
.foot__link:hover{background:var(--paper);color:var(--blue)}
.foot__ic{
  display:grid;place-items:center;width:18px;height:18px;border-radius:2px;
  background:var(--paper);color:var(--blue);font-size:11px;font-weight:700;line-height:1;
}
.foot__link:hover .foot__ic{background:var(--blue);color:var(--paper)}

/* =================== toast =================== */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);
  z-index:60;padding:13px 22px;border-radius:2px;
  background:var(--paper);color:var(--blue);border:2px solid var(--blue);
  font-family:var(--mono);font-weight:700;font-size:12.5px;letter-spacing:.04em;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s ease;
  display:flex;align-items:center;gap:10px;max-width:90vw;
}
.toast.is-show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast .t-ic{font-size:14px}

/* =================== responsive =================== */
@media (max-width:1080px){
  .hero{grid-template-columns:1fr;gap:40px;padding-top:46px}
  .hero__right{order:-1}
  .frame{max-width:340px;margin:0 auto}
  .daily{flex-direction:column;align-items:flex-start;gap:22px}
  .daily__right{width:100%;justify-content:space-between}
  .modules{grid-template-columns:repeat(2,1fr)!important}
  .mod-card{border-right:none;border-bottom:2px solid var(--paper)}
  .mod-card:nth-child(odd){border-right:2px solid var(--paper)}
  .stage{grid-template-columns:1fr}
  .brief{position:static}
  .stepper{display:none}
  .topbar{grid-template-columns:auto auto;justify-content:space-between}
  .finish__scores{grid-template-columns:repeat(2,1fr)}
  .score-card{border-bottom:2px solid var(--paper)}
}
@media (max-width:560px){
  .modules{grid-template-columns:1fr!important}
  .mod-card{border-right:none!important;border-bottom:2px solid var(--paper)}
  .toolbar{flex-direction:column;align-items:stretch}
  .tool-group--right{margin-left:0}
  .btn{justify-content:center}
  .stage{padding:18px 14px}
  .site-footer{flex-direction:column;align-items:flex-start;gap:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.05ms!important}
}