.pilot-wrap {
  max-width: 1120px;
  margin: auto;
  padding: 0 36px;
}
.pilot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 0 18px;
}
.pilot-wrap .page-head {
  padding: 40px 0 20px;
}
.pilot-wrap .page-head h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
}
.pilot-wrap .form-card {
  margin: 28px 0;
  max-width: 720px;
}
.pilot-wrap label {
  display: block;
  margin: 20px 0 8px;
}
.pilot-wrap .library-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.pilot-wrap .course-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  gap: 12px;
}
.pilot-wrap .course-card p {
  margin: 0;
}
.pilot-wrap .course-card .button {
  margin-top: auto;
  align-self: flex-start;
}
.pilot-wrap .lesson-shell {
  max-width: 760px;
  margin: 40px auto;
}
.pilot-wrap .lesson-shell h1 {
  font-size: clamp(32px, 5vw, 48px);
}
.pilot-wrap .lesson-text a {
  text-decoration: underline;
}
.pilot-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  text-align: left;
  padding: 40px 0;
  margin-top: 45px;
  border-top: 1px solid var(--line);
  font-size: 12px;
}
.pilot-footer details {
  max-width: 480px;
}
.pilot-footer summary {
  cursor: pointer;
}
.pilot-wrap [hidden] {
  display: none !important;
}
.pilot-wrap #globalStatus:not(:empty) {
  background: var(--mint);
  padding: 16px;
  border-radius: 16px;
}
.pilot-wrap .feedback {
  margin-top: 18px;
}
.pilot-wrap .citation {
  display: block;
}
.pilot-wrap .course-card.selected {
  outline: 2px solid var(--green);
}
@media (max-width: 760px) {
  .pilot-wrap input,
  .pilot-wrap textarea,
  .admin-wrap input,
  .admin-wrap #material {
    font-size: 16px;
  }
  .pilot-header .quiet,
  .pilot-wrap .text-link,
  .admin-wrap .text-link {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .pilot-wrap summary,
  .admin-wrap summary {
    min-height: 44px;
    padding-block: 12px;
  }
  .pilot-wrap .lesson-text,
  .pilot-wrap .citation,
  .pilot-wrap .feedback {
    overflow-wrap: anywhere;
  }
  .pilot-wrap pre,
  .pilot-wrap .katex-display {
    max-width: 100%;
    overflow-x: auto;
  }
  .pilot-wrap {
    padding: 0 20px;
  }
  .pilot-wrap .library-grid {
    grid-template-columns: 1fr;
  }
  .pilot-wrap .page-head {
    padding-top: 25px;
  }
  .pilot-footer {
    flex-direction: column;
  }
  .pilot-header .brand {
    font-size: 28px;
  }
  .pilot-wrap .form-card {
    padding: 24px;
  }
  .pilot-wrap .lesson-shell {
    margin-top: 25px;
  }
}

/* Public learning interface: clear hierarchy and restrained iconography. */
.brand-symbol { flex: 0 0 auto; border-radius: 9px; }
.subject-icon { margin-bottom: 4px; }
.pilot-wrap .course-card h3 { margin-bottom: 0; }
.pilot-wrap .course-card details { margin-top: auto; }
.pilot-wrap .course-card .button { margin-top: 4px; }
.auth-help { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 10px; }
.auth-help summary { color: var(--muted); font-size: 14px; cursor: pointer; }
.pilot-wrap .form-actions { margin-top: 14px; }
.pilot-wrap a[target="_blank"]::after { content: ""; display: inline-block; width: 14px; height: 14px; margin-left: 5px; vertical-align: -2px; background: url('/static/vendor/icons/external-link.svg') center/contain no-repeat; }
.pilot-wrap .page-head p { max-width: 570px; }
@media (max-width: 480px) {
  .pilot-wrap .page-head h1 { font-size: 42px; letter-spacing: -1.6px; }
  .pilot-wrap .form-card { padding: 22px; }
  #emailForm > .form-actions { flex-direction: column; align-items: stretch; }
  #emailForm > .form-actions .button { width: 100%; }
  .section-heading { flex-wrap: wrap; gap: 6px; }
  .pilot-wrap .course-card .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Frizzl identity: ink, paper and a single warm accent. Legacy variable
   aliases keep shared layout CSS compatible with the public brand tokens. */
:root {
  --ink: #20283f; --muted: #596174; --paper: #faf8f5;
  --white: #ffffff; --line: #d9d8df; --green: #a63f2b;
  --mint: #f2e8e3; --lime: #eadfd7; --orange: #b84932;
  --peach: #f2e8e3; --lilac: #ececf4;
  --shadow: 0 8px 24px #20283f08;
}
.pilot-wrap .brand { font-weight: 700; letter-spacing: -1.3px; }
.pilot-wrap .brand-symbol { border-radius: 0; width: 38px; height: 38px; }
.pilot-wrap .brand > span:last-child { color: var(--ink); }
.pilot-wrap .primary, .admin-wrap .primary { background: var(--ink); box-shadow: none; }
.pilot-wrap .primary:hover, .admin-wrap .primary:hover { background: #343f5c; }
.pilot-wrap .secondary, .admin-wrap .secondary { border-color: #89909e; background: var(--white); color: var(--ink); }
.pilot-wrap input, .pilot-wrap textarea, .admin-wrap input, .admin-wrap textarea { border-color: #89909e; }
.pilot-wrap input::placeholder, .pilot-wrap textarea::placeholder, .admin-wrap input::placeholder { color: #626a7a; }
.pilot-wrap .check-card { background: #f1f0f5; border-color: #d0cfdc; }
.pilot-wrap .course-card.selected { outline-color: var(--ink); }
.pilot-wrap .eyebrow, .pilot-wrap .text-link, .admin-wrap .text-link { color: var(--muted); }
.pilot-wrap a:focus-visible, .pilot-wrap button:focus-visible, .admin-wrap a:focus-visible, .admin-wrap button:focus-visible { outline: 2px solid #a63f2b; outline-offset: 4px; }
.pilot-wrap .auth-modes { display: flex; gap: 4px; padding: 4px; background: #eeedf1; border-radius: 10px; margin-bottom: 24px; }
.auth-modes button { flex: 1; min-height: 44px; padding: 8px 10px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; font-size: 14px; font-weight: 600; }
.auth-modes button[aria-pressed="true"] { color: var(--ink); background: var(--white); box-shadow: 0 1px 4px #20283f12; }
#codeExplanation { padding: 12px; border-left: 3px solid var(--orange); background: var(--mint); }

/* Public pages and the returning learner's dashboard. */
.landing-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:start;padding:64px 0 72px}.landing-hero h1{font-size:clamp(36px,4.1vw,52px);line-height:1.08;letter-spacing:-.045em;margin:20px 0}.hero-intro{max-width:490px;font-size:18px;line-height:1.65}.lesson-preview{background:#fff;border:1px solid var(--line);border-top:4px solid var(--orange);padding:30px;border-radius:8px}.lesson-preview h2{font-size:25px;line-height:1.25}.example-step{display:flex;gap:16px;border-top:1px solid var(--line);padding:16px 0}.example-step>span,.step-number{font:14px ui-monospace,monospace;color:var(--green)}.example-step p{margin:0;line-height:1.6}.landing-section{border-top:1px solid var(--line);padding:48px 0}.landing-section h2,.pilot-invitation h2{font-size:30px;letter-spacing:-.025em}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:32px}.steps-grid p,.landing-courses p,.pilot-invitation p{line-height:1.65}.landing-courses .card{padding:24px}.pilot-invitation{display:flex;align-items:center;gap:40px;background:var(--mint);padding:32px;border-radius:8px;margin:24px 0 48px}.pilot-invitation>div{flex:1}.pilot-invitation .button{white-space:nowrap}.footer-links{display:flex;flex-wrap:wrap;gap:20px}.footer-links a{color:var(--muted)}.information-page{max-width:700px;margin:64px auto 80px;line-height:1.8}.information-page h1{font-size:clamp(36px,5vw,54px);line-height:1.12;letter-spacing:-.035em}.information-page h2{font-size:23px;margin-top:32px}.information-page a{color:var(--green)}#dashboardSummary{padding:28px;background:#fff;border:1px solid var(--line);border-radius:8px;margin:24px 0}#dashboardSummary h2{font-size:27px}.pilot-commitment{padding:18px;background:var(--mint);border-radius:8px;line-height:1.6}.pilot-commitment input[type=checkbox]{width:20px;height:20px;flex:none}.pilot-commitment label{display:flex;gap:10px;align-items:flex-start}#backDashboard{margin-bottom:20px}.admin-reset-preview{padding:16px;background:var(--mint);border-radius:6px;margin-top:16px}
.landing-courses{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:700px){.landing-hero{grid-template-columns:1fr;gap:32px;padding:32px 0 40px}.lesson-preview{padding:22px}.steps-grid{grid-template-columns:1fr;gap:22px}.landing-section{padding:32px 0}.pilot-invitation{flex-direction:column;align-items:flex-start;padding:24px;gap:12px}.pilot-footer{align-items:flex-start;gap:20px;flex-direction:column}.information-page{margin:32px 0 48px}.landing-hero .form-actions{align-items:flex-start}.landing-courses{grid-template-columns:1fr}}

#dashboardSummary .button{white-space:nowrap}.admin-wrap [hidden]{display:none!important}

/* Small daily rituals: one clear action, touch-friendly controls, real progress. */
.pilot-wrap:has(.app-nav:not([hidden])){padding-bottom:94px}.routine-card{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 0}.routine-card h2{font-size:23px;margin:8px 0}.week-progress{display:flex;gap:7px}.week-day{display:grid;place-items:center;width:34px;height:40px;border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:12px}.week-day.today{border-color:var(--ink);border-width:2px}.week-day.practiced{background:var(--ink);color:white}.app-nav{position:fixed;bottom:max(12px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:min(420px,calc(100% - 32px));display:flex;z-index:10;background:var(--ink);padding:6px;border-radius:20px;box-shadow:0 5px 24px #20283f26}.app-nav a{flex:1;text-align:center;color:#dce0ed;padding:14px 4px;border-radius:15px;font-weight:650;font-size:14px;text-decoration:none}.app-nav a[aria-current=page]{background:white;color:var(--ink)}.plan-panel{max-width:680px;margin:24px auto;padding:28px}.plan-panel h2{font-size:32px}.plan-panel select{width:100%;min-height:48px;background:white;color:var(--ink);border:1px solid #89909e;border-radius:10px;padding:10px;font:inherit}.plan-panel fieldset{padding:0;border:0;margin:24px 0}.day-picker{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.pilot-wrap .day-picker label{margin:0;position:relative;cursor:pointer}.day-picker input{position:absolute;opacity:0;width:1px;height:1px}.day-picker span{display:grid;place-items:center;min-width:50px;min-height:48px;border:1px solid var(--line);border-radius:12px}.day-picker input:checked+span{background:var(--ink);color:white}.day-picker input:focus-visible+span{outline:3px solid var(--orange);outline-offset:3px}.lesson-history{display:grid;gap:12px;margin:24px 0}.history-lesson{text-align:left;padding:22px;border:1px solid var(--line);border-radius:16px;background:white;color:var(--ink);font:inherit;cursor:pointer}.lesson-steps{display:flex;gap:8px;margin-bottom:16px}.lesson-steps button{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;background:transparent;border:1px solid var(--line);border-radius:14px;color:var(--muted);font:inherit;font-size:14px;cursor:pointer}.lesson-steps button[aria-current=step]{background:var(--ink);color:white;border-color:var(--ink)}.lesson-steps span{font-size:12px;opacity:.7}.lesson-progress{height:5px;background:var(--line);border-radius:9px;margin-bottom:30px;overflow:hidden}.lesson-progress>div{height:100%;background:var(--orange);transition:width .2s}.reflection-card{padding:28px;background:white;border:1px solid var(--line);border-radius:20px}.reflection-card h2{font-size:28px}.feedback-verdict{display:block;font-weight:700;font-size:21px;margin:22px 0 12px}.your-answer{padding:16px;background:var(--paper);border-left:3px solid var(--orange);white-space:pre-wrap}.stage-continue{margin-top:26px}.button{transition:transform .12s,background .12s}.button:active{transform:translateY(2px)}.concept-visual{padding:24px;border:1px solid var(--line);border-radius:18px;background:#f1f0f5;margin:26px 0}.concept-nodes{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.concept-node{flex:1;min-width:100px;min-height:54px;padding:12px;border:1px solid var(--line);border-radius:12px;background:white;color:var(--ink);font:inherit;cursor:pointer}.concept-node[aria-pressed=true]{background:var(--ink);color:white}.concept-caption{min-height:64px;line-height:1.65}.concept-links{font-size:12px;color:var(--muted)}.demo-question{border-top:1px solid var(--line);padding-top:16px;margin-top:20px}.demo-question summary{cursor:pointer;line-height:1.5;font-weight:650}.demo-disclosure{margin-top:20px}.llm-demo{border-radius:22px}.plan-panel details{margin-top:28px}.plan-panel #planStatus:not(:empty){padding:14px;background:var(--mint);border-radius:10px}
@media(max-width:700px){.routine-card{align-items:flex-start;flex-direction:column;gap:12px}.week-progress{width:100%;justify-content:space-between}.week-day{width:calc((100% - 48px)/7);max-width:45px}.plan-panel{padding:22px}.reflection-card{padding:22px}.lesson-shell .check-card{padding:22px}.lesson-steps{gap:5px}.lesson-steps button{font-size:13px}.pilot-header{gap:12px;flex-wrap:wrap}.pilot-header .brand{margin-right:auto}.pilot-wrap .lesson-shell{margin-top:16px}.pilot-wrap .page-head h1{font-size:40px}.concept-visual{padding:18px}.day-picker{gap:6px}.day-picker span{min-width:42px}.app-nav a{min-height:48px;display:grid;place-items:center}.pilot-wrap .pilot-commitment label{display:flex;gap:10px}.token-context{gap:5px}.token-context span{padding:6px 7px}}
@media(prefers-reduced-motion:reduce){.button,.lesson-progress>div{transition:none}.button:active{transform:none}}

html{scroll-padding-bottom:110px}.app-nav~.pilot-footer{padding-bottom:24px}

/* Homepage: a worked attention head, with optional technical depth. */
.attention-flow{width:100%;height:auto;margin:16px 0 8px;color:var(--muted)}
.attention-controls{display:flex;gap:8px}.attention-controls button{flex:1;min-height:46px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink);font:inherit;font-size:13px;cursor:pointer;padding:8px}
.attention-controls button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}
.attention-bars{display:grid;gap:12px;margin:22px 0}.attention-bars>div{display:grid;grid-template-columns:30px minmax(0,1fr) 48px;align-items:center;gap:10px;font-size:14px}.attention-bars meter{width:100%;height:18px;accent-color:var(--orange)}.attention-bars meter::-webkit-meter-optimum-value{background:var(--orange)}
.attention-output{padding:14px;background:#f1f0f5;border-radius:10px;display:flex;justify-content:space-between;gap:10px;font-size:14px}.attention-output strong{font-variant-numeric:tabular-nums}
.attention-table{overflow-x:auto}.attention-table table{width:100%;font-size:13px;border-collapse:collapse}.attention-table caption{text-align:left;padding:10px 0;color:var(--muted)}.attention-table th,.attention-table td{text-align:left;padding:8px 4px;border-bottom:1px solid var(--line)}
.attention-check{border:0;padding:0;margin:22px 0 0;min-width:0}.attention-check legend{font-size:14px;font-weight:650;line-height:1.5;margin-bottom:12px}.attention-check p:empty{display:none}

/* Trusted lesson components: one visual vocabulary across generated lessons. */
.lesson-example{margin:28px 0;padding:22px 26px;border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:8px;background:#fff}
.lesson-example h3{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--orange);margin:0 0 12px}.lesson-example p:last-child{margin-bottom:0}.lesson-example p{line-height:1.75}
.katex-display{overflow-x:auto;overflow-y:hidden;padding:6px 0}.visual-body{overflow-x:auto}.visual-graph{position:relative;margin:16px auto;color:var(--muted)}.visual-graph>svg{position:absolute;inset:0}.visual-graph .concept-node{position:absolute;width:156px;height:76px;margin:0;padding:12px;font-size:14px;line-height:1.35;background:var(--paper,#faf8f5);border:1px solid var(--line);border-radius:10px;white-space:normal}.visual-graph .concept-node[aria-pressed=true]{background:var(--ink,#20283d);color:#fff;border-color:var(--ink,#20283d)}.concept-node:focus-visible,.visual-control input:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.visual-connections{font-size:13px;margin:12px 0}.visual-comparison{width:100%;border-collapse:collapse;font-size:14px;line-height:1.6}.visual-comparison th,.visual-comparison td{padding:14px 12px;text-align:left;border-bottom:1px solid var(--line);min-width:105px;vertical-align:top}.visual-comparison thead{background:#eee9e2}.visual-chart{display:block;width:100%;min-width:290px;max-width:560px;margin:16px auto;color:var(--orange)}.visual-chart text{fill:var(--ink,#20283d);font-size:11px}.visual-control{display:grid;gap:10px;font-size:14px}.visual-control input{width:100%;accent-color:var(--orange)}.visual-control output{font-weight:600}.concept-caption{min-height:3em;line-height:1.65}
@media(max-width:600px){.lesson-example{padding:18px}.concept-visual{padding:18px}.visual-comparison th,.visual-comparison td{padding:12px 9px;min-width:88px}}