:root {
  --bg: #101827;
  --paper: #eef5f7;
  --ink: #16202a;
  --muted: #647383;
  --line: rgba(24, 38, 55, .14);
  --leaf: #1f9f7a;
  --blue: #245bff;
  --brick: #ef6a4d;
  --gold: #f4b942;
  --panel: rgba(255, 255, 255, .84);
  --shadow: rgba(19, 31, 49, 0.18);
  --glass: rgba(255, 255, 255, .72);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 5%, rgba(36, 91, 255, .24), transparent 28rem),
    radial-gradient(circle at 88% 0%, rgba(31, 159, 122, .24), transparent 30rem),
    radial-gradient(circle at 55% 38%, rgba(239, 106, 77, .10), transparent 28rem),
    linear-gradient(180deg, #fbfdff 0%, #edf5f7 46%, #e5eff1 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(22, 32, 42, .035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(22, 32, 42, .028) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.72), transparent 75%);
}

body:not(.workspace-started) .workspace {
  display: none;
}

body.workspace-started .intro {
  display: none;
}

body.kid-mode {
  --paper: #fff6b8;
  --panel: #fffdf2;
  --ink: #223055;
  --blue: #4b65d9;
  --brick: #ef6b4d;
  --leaf: #30a86f;
  background:
    radial-gradient(circle at 10% 10%, rgba(239, 107, 77, .20), transparent 14rem),
    radial-gradient(circle at 80% 8%, rgba(75, 101, 217, .18), transparent 16rem),
    radial-gradient(circle at 60% 90%, rgba(48, 168, 111, .18), transparent 18rem),
    var(--paper);
}

body.mode-home {
  --paper: #fff8ea;
  --panel: #fffdf7;
  --ink: #282018;
  --blue: #7a5a2a;
  --brick: #c56b3f;
  --leaf: #6f8f4e;
  background:
    linear-gradient(90deg, rgba(197, 107, 63, 0.10) 1px, transparent 1px),
    linear-gradient(180deg, rgba(197, 107, 63, 0.08) 1px, transparent 1px),
    #fff1cf;
}

body.mode-casual {
  --paper: #f8f7ed;
  --panel: #fffdf6;
  --ink: #25312d;
  --blue: #2f6b78;
  --brick: #d16f4c;
  --leaf: #4c8b68;
  background:
    linear-gradient(135deg, rgba(47, 107, 120, .16), transparent 34%),
    linear-gradient(315deg, rgba(209, 111, 76, .14), transparent 38%),
    #edf4ef;
}

body.mode-creative {
  --paper: #f7f0fb;
  --panel: #fffaff;
  --ink: #2b2440;
  --blue: #6a54b8;
  --brick: #c5527d;
  --leaf: #487a9a;
  background:
    linear-gradient(135deg, rgba(106, 84, 184, .18), transparent 34%),
    linear-gradient(315deg, rgba(197, 82, 125, .16), transparent 38%),
    #f4e8fb;
}

body.mode-business {
  --paper: #f8f4e8;
  --panel: #fffdf7;
  --ink: #27251f;
  --blue: #5d6471;
  --brick: #9f6a24;
  --leaf: #607d3e;
  background:
    linear-gradient(135deg, rgba(159, 106, 36, .18), transparent 34%),
    linear-gradient(315deg, rgba(93, 100, 113, .16), transparent 38%),
    #efe8d8;
}

body.mode-student {
  --paper: #f7f8f4;
  --panel: #fffdf7;
  --ink: #18241f;
  --blue: #315e8a;
  --brick: #b94f39;
  --leaf: #2f7d5f;
  background:
    linear-gradient(90deg, rgba(49, 94, 138, 0.10) 1px, transparent 1px),
    linear-gradient(180deg, rgba(49, 94, 138, 0.08) 1px, transparent 1px),
    #f1f5ef;
}

body.mode-teacher {
  --paper: #f2f7fb;
  --panel: #ffffff;
  --ink: #142436;
  --blue: #245985;
  --brick: #9f5a42;
  --leaf: #397a68;
  background:
    linear-gradient(90deg, rgba(36, 89, 133, 0.12) 1px, transparent 1px),
    linear-gradient(180deg, rgba(57, 122, 104, 0.10) 1px, transparent 1px),
    #e8f2f8;
}

body.mode-academic {
  --paper: #eef1f2;
  --panel: #fbfcfc;
  --ink: #182126;
  --blue: #263f58;
  --brick: #7f5146;
  --leaf: #3d665f;
  background:
    linear-gradient(90deg, rgba(38, 63, 88, 0.16) 1px, transparent 1px),
    linear-gradient(180deg, rgba(38, 63, 88, 0.12) 1px, transparent 1px),
    #dfe5e7;
}

body.mode-technical {
  --paper: #eef7f8;
  --panel: #ffffff;
  --ink: #142531;
  --muted: #5f7180;
  --line: rgba(20, 37, 49, .16);
  --blue: #176d8f;
  --brick: #b55c3f;
  --leaf: #287c68;
  background:
    radial-gradient(circle at 10% 6%, rgba(23, 109, 143, .16), transparent 22rem),
    radial-gradient(circle at 92% 0%, rgba(40, 124, 104, .14), transparent 24rem),
    linear-gradient(90deg, rgba(23, 109, 143, 0.10) 1px, transparent 1px),
    linear-gradient(180deg, rgba(40, 124, 104, 0.08) 1px, transparent 1px),
    #edf6f7;
}

body.mode-technical input,
body.mode-technical select,
body.mode-technical textarea,
body.mode-technical article,
body.mode-technical .planner-card,
body.mode-technical .tool-output,
body.mode-technical .lap-list,
body.mode-technical .calendar-day,
body.mode-technical .media-card,
body.mode-technical .story-step {
  color: var(--ink);
  background: #fbfefd;
}

body.mode-technical .intro,
body.mode-technical .start-screen,
body.mode-technical .control-panel,
body.mode-technical .results,
body.mode-technical .account-ribbon,
body.mode-technical .language-ribbon,
body.mode-technical .status-card {
  background: var(--panel);
}

body.mode-technical .main-copy,
body.mode-technical article p,
body.mode-technical .stack-item p,
body.mode-technical .question p,
body.mode-technical .lesson-block p,
body.mode-technical .lesson-block li,
body.mode-technical .media-card p,
body.mode-technical .story-step p,
body.mode-technical .planner-card,
body.mode-technical .learning-item,
body.mode-technical .agenda-item {
  color: #314653;
}

body.mode-technical input,
body.mode-technical select,
body.mode-technical textarea {
  border-color: rgba(23, 109, 143, .24);
}

.topbar,
.start-screen,
.landing-showcase,
.voice-console,
.defense-strip,
.jury-demo,
.control-panel,
.results {
  transition: background .32s ease, border-color .32s ease, box-shadow .32s ease, transform .32s ease;
}

body.profile-transition .topbar,
body.profile-transition .start-screen,
body.profile-transition .landing-showcase,
body.profile-transition .voice-console,
body.profile-transition .jury-demo,
body.profile-transition .control-panel,
body.profile-transition .results {
  transform: translateY(-2px);
  box-shadow: 0 30px 76px rgba(19, 31, 49, .18);
}

body.mode-home .status-card,
body.mode-home .progress-strip {
  border-top: 5px solid #c56b3f;
}

body.mode-teacher .status-card,
body.mode-teacher .progress-strip {
  border-top: 5px solid #245985;
}

body.mode-academic .status-card,
body.mode-academic .progress-strip {
  border-top: 5px solid #263f58;
}

body.mode-technical .status-card,
body.mode-technical .progress-strip {
  border-top: 5px solid #176d8f;
}

body.mode-casual .topbar,
body.mode-casual .intro,
body.mode-casual .start-screen,
body.mode-casual .control-panel,
body.mode-casual .results {
  border-left: 10px solid #2f6b78;
}

body.mode-creative .topbar,
body.mode-creative .intro,
body.mode-creative .start-screen,
body.mode-creative .control-panel,
body.mode-creative .results {
  border-left: 10px solid #6a54b8;
}

body.mode-business .topbar,
body.mode-business .intro,
body.mode-business .start-screen,
body.mode-business .control-panel,
body.mode-business .results {
  border-left: 10px solid #9f6a24;
}

body.mode-home .topbar,
body.mode-home .intro,
body.mode-home .start-screen,
body.mode-home .control-panel,
body.mode-home .results {
  border-left: 10px solid #c56b3f;
}

body.mode-teacher .topbar,
body.mode-teacher .intro,
body.mode-teacher .start-screen,
body.mode-teacher .control-panel,
body.mode-teacher .results {
  border-left: 10px solid #245985;
}

body.mode-academic .topbar,
body.mode-academic .intro,
body.mode-academic .start-screen,
body.mode-academic .control-panel,
body.mode-academic .results {
  border-left: 10px solid #263f58;
}

body.mode-technical .topbar,
body.mode-technical .intro,
body.mode-technical .start-screen,
body.mode-technical .control-panel,
body.mode-technical .results {
  border-left: 10px solid #176d8f;
}

body.kid-mode h1 {
  font-family: "Comic Sans MS", "Trebuchet MS", sans-serif;
}

body.kid-mode .topbar h1::after {
  content: " ✨";
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  width: min(1320px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.language-ribbon {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding: 10px 12px;
  position: sticky;
  top: 12px;
  z-index: 10;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 18px;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 46px rgba(19, 31, 49, 0.12);
}

.language-ribbon span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.language-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.help-button {
  min-height: 34px;
  padding-inline: 14px;
}

.language-chip {
  min-height: 34px;
  padding: 0 11px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fffaf0;
}

.language-chip[aria-pressed="true"] {
  color: white;
  border-color: var(--blue);
  background: var(--blue);
}

.account-ribbon {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: end;
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, .58);
  border-radius: 18px;
  background: rgba(255, 255, 255, .68);
  backdrop-filter: blur(18px);
}

.account-fields {
  display: grid;
  grid-template-columns: 150px 150px 160px auto;
  gap: 10px;
  align-items: end;
}

.account-ribbon p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.topbar,
.devpost-pitch,
.intro,
.workspace {
  display: grid;
  gap: 18px;
}

.topbar {
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: stretch;
  margin-bottom: 18px;
  min-height: 360px;
  padding: 38px;
  color: white;
  border-radius: 28px;
  background:
    radial-gradient(circle at 80% 20%, rgba(31, 159, 122, .34), transparent 19rem),
    radial-gradient(circle at 22% 18%, rgba(239, 106, 77, .22), transparent 18rem),
    linear-gradient(135deg, rgba(11, 17, 31, .98), rgba(28, 58, 111, .93) 52%, rgba(18, 86, 91, .88));
  box-shadow: 0 28px 80px rgba(19, 31, 49, .24);
  overflow: hidden;
  position: relative;
}

.topbar::after {
  content: "";
  position: absolute;
  right: 40px;
  top: 32px;
  width: 260px;
  height: 180px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 28px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .65;
}

.topbar::before {
  content: "";
  position: absolute;
  inset: auto -10% -52% 26%;
  height: 300px;
  transform: rotate(-8deg);
  background: linear-gradient(90deg, rgba(255,255,255,.18), rgba(255,255,255,0));
  filter: blur(1px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: end;
}

.hero-subtitle {
  max-width: 680px;
  margin: 18px 0 0;
  color: rgba(255,255,255,.82);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.35;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.hero-badges span {
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.20);
  border-radius: 999px;
  color: #e9fffa;
  background: rgba(255,255,255,.10);
  backdrop-filter: blur(10px);
  font-size: 12px;
  font-weight: 850;
}

.hero-visual {
  position: relative;
  z-index: 2;
  grid-column: 2;
  grid-row: 1;
  min-height: 280px;
  align-self: center;
}

.learning-orb {
  position: absolute;
  inset: 52px 32px 42px 34px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 44% 56% 52% 48% / 50% 38% 62% 50%;
  background:
    radial-gradient(circle at 42% 36%, rgba(255,255,255,.56), transparent 4rem),
    radial-gradient(circle at 68% 70%, rgba(244, 185, 66, .50), transparent 6rem),
    linear-gradient(135deg, rgba(31,159,122,.44), rgba(36,91,255,.32));
  box-shadow: inset 0 0 80px rgba(255,255,255,.10), 0 30px 70px rgba(0,0,0,.22);
}

.learning-orb span {
  position: absolute;
  inset: 28px;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,.35);
}

.orbit-card {
  position: absolute;
  z-index: 3;
  min-width: 126px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 18px;
  background: rgba(255,255,255,.14);
  box-shadow: 0 18px 44px rgba(0,0,0,.18);
  backdrop-filter: blur(18px);
}

.orbit-card span {
  display: inline-grid;
  width: 26px;
  height: 26px;
  margin-bottom: 7px;
  place-items: center;
  border-radius: 999px;
  color: #0d2331;
  background: #8ee4c8;
  font-size: 12px;
  font-weight: 900;
}

.orbit-card strong {
  display: block;
  color: white;
  font-size: 15px;
}

.card-a {
  top: 20px;
  left: 0;
}

.card-b {
  right: 0;
  top: 118px;
}

.card-c {
  left: 72px;
  right: auto;
  bottom: 0;
}

.eyebrow,
.module-label {
  margin: 0 0 8px;
  color: var(--brick);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(42px, 8vw, 104px);
  line-height: 0.82;
  letter-spacing: 0;
  font-family: Georgia, "Times New Roman", serif;
}

.topbar h1 {
  position: relative;
  z-index: 1;
  color: white;
}

.topbar .eyebrow {
  color: #8ee4c8;
}

h2 {
  max-width: 780px;
  margin-bottom: 10px;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1;
  letter-spacing: 0;
  font-family: Georgia, "Times New Roman", serif;
}

h3 {
  margin-bottom: 0;
  font-size: 26px;
  line-height: 1.1;
}

h4 {
  margin-bottom: 8px;
  color: var(--blue);
}

.intro {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .62);
  border-radius: 22px;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 48px var(--shadow);
}

.start-screen {
  display: grid;
  grid-template-columns: 1fr 250px;
  gap: 18px;
  align-items: end;
  margin-bottom: 18px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.94), rgba(248,251,255,.82)),
    radial-gradient(circle at 88% 20%, rgba(31,159,122,.16), transparent 18rem);
  box-shadow: 0 24px 70px rgba(19, 31, 49, .18);
  backdrop-filter: blur(18px);
}

.start-screen textarea {
  min-height: 118px;
  border-radius: 18px;
  font-size: 16px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
}

.prompt-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.prompt-suggestions button {
  min-height: 34px;
  padding: 0 12px;
  color: var(--blue);
  border-color: rgba(36, 91, 255, .18);
  border-radius: 999px;
  background: rgba(36, 91, 255, .07);
  box-shadow: none;
}

.prompt-suggestions button:hover {
  transform: translateY(-1px);
  background: rgba(36, 91, 255, .12);
}

.devpost-pitch {
  grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr);
  align-items: stretch;
  margin-bottom: 18px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, .62);
  border-left: 0;
  border-radius: 26px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 52px var(--shadow);
  backdrop-filter: blur(18px);
}

.devpost-pitch h2 {
  max-width: 760px;
  margin-bottom: 10px;
  font-size: clamp(32px, 4vw, 58px);
  line-height: .96;
}

.devpost-pitch > div > p:not(.eyebrow) {
  max-width: 780px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.5;
}

.pitch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.pitch-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 190px;
  padding: 18px;
  border: 1px solid rgba(36, 91, 255, .12);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(244,248,255,.88));
  box-shadow: 0 12px 30px rgba(19, 31, 49, .10);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.pitch-grid article:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 91, 255, .30);
  box-shadow: 0 22px 46px rgba(19, 31, 49, .14);
}

.pitch-grid span {
  color: var(--brick);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.pitch-grid p {
  margin: 0;
  color: #46554f;
  line-height: 1.45;
}

body.mode-technical .pitch-grid article {
  background: #fbfefd;
}

body.mode-technical .pitch-grid p {
  color: #314653;
}

.start-actions {
  display: grid;
  gap: 10px;
}

.landing-showcase {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.showcase-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  min-height: 150px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .66);
  border-radius: 28px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 18px 48px rgba(19, 31, 49, .12);
  backdrop-filter: blur(18px);
}

.showcase-card.primary {
  color: white;
  background:
    radial-gradient(circle at 92% 12%, rgba(142, 228, 200, .28), transparent 13rem),
    linear-gradient(135deg, rgba(17, 31, 54, .96), rgba(31, 95, 126, .90));
}

.showcase-card.primary p,
.showcase-card.primary strong {
  color: white;
}

.showcase-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 16px;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--leaf));
  box-shadow: 0 12px 28px rgba(36, 91, 255, .18);
  font-size: 24px;
  font-weight: 900;
}

.showcase-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 18px;
}

.showcase-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.competitive-edge {
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .66);
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 10%, rgba(36, 91, 255, .12), transparent 16rem),
    radial-gradient(circle at 92% 22%, rgba(31, 159, 122, .14), transparent 18rem),
    rgba(255, 255, 255, .80);
  box-shadow: 0 20px 56px rgba(19, 31, 49, .13);
  backdrop-filter: blur(18px);
}

.difference-disclosure {
  padding: 0;
  overflow: hidden;
}

.difference-disclosure summary {
  cursor: pointer;
  min-height: 58px;
  padding: 18px 22px;
  color: white;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--blue), var(--leaf));
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 950;
  list-style: none;
}

.difference-disclosure summary::-webkit-details-marker {
  display: none;
}

.difference-disclosure summary::after {
  content: "+";
  float: right;
  font-weight: 900;
}

.difference-disclosure[open] summary::after {
  content: "−";
}

.difference-disclosure .edge-head,
.difference-disclosure .edge-grid,
.difference-disclosure .landing-showcase,
.difference-disclosure .defense-strip,
.difference-disclosure .maturity-strip {
  margin-inline: 22px;
}

.difference-disclosure .landing-showcase {
  margin-top: 18px;
}

.difference-disclosure .edge-head {
  margin-top: 22px;
}

.difference-disclosure .defense-strip {
  margin-top: 16px;
}

.difference-disclosure .maturity-strip {
  margin-top: 16px;
  margin-bottom: 22px;
}

.edge-head {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(280px, 1fr);
  gap: 16px;
  align-items: end;
  margin-bottom: 18px;
}

.edge-head .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -8px;
}

.edge-head h2 {
  margin: 0;
  color: var(--ink);
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(30px, 4vw, 52px);
  line-height: .96;
}

.edge-head p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.edge-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(122px, 1fr));
  gap: 10px;
}

.edge-grid article {
  min-height: 168px;
  padding: 14px;
  border: 1px solid rgba(29, 61, 93, .10);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(246, 249, 247, .86));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.edge-grid article:hover {
  border-color: rgba(31, 95, 126, .30);
  box-shadow: 0 18px 34px rgba(19, 31, 49, .13);
  transform: translateY(-4px);
}

.edge-grid span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  margin-bottom: 20px;
  place-items: center;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, var(--navy), var(--leaf));
  font-size: 12px;
  font-weight: 950;
}

.edge-grid strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 15px;
}

.edge-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.maturity-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.maturity-strip article {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .64);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(20, 37, 49, .92), rgba(39, 102, 117, .88));
  color: white;
  box-shadow: 0 18px 42px rgba(19, 31, 49, .16);
}

.maturity-strip article:nth-child(2) {
  background: linear-gradient(135deg, rgba(31, 159, 122, .95), rgba(36, 91, 255, .78));
}

.maturity-strip article:nth-child(3) {
  background: linear-gradient(135deg, rgba(123, 97, 255, .92), rgba(31, 95, 126, .86));
}

.maturity-strip article:nth-child(4) {
  background: linear-gradient(135deg, rgba(185, 79, 57, .92), rgba(212, 169, 63, .88));
}

.maturity-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
}

.maturity-strip p {
  margin: 0;
  color: rgba(255, 255, 255, .86);
  line-height: 1.45;
}

.voice-console {
  display: none;
  position: fixed;
  top: 82px;
  right: 38px;
  z-index: 31;
  width: min(520px, calc(100vw - 76px));
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(32, 65, 87, .18);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(36, 91, 255, .08), rgba(31, 159, 122, .10)),
    rgba(255, 255, 255, .94);
  box-shadow: 0 18px 48px rgba(19, 31, 49, .14);
  backdrop-filter: blur(18px);
}

body.voice-open .voice-console {
  display: grid;
}

.voice-console p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.voice-grid {
  display: grid;
  grid-template-columns: auto minmax(120px, 1fr) auto minmax(120px, 1fr);
  gap: 8px 10px;
  align-items: center;
}

.voice-grid label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.voice-actions {
  display: block;
}

.hidden-control {
  display: none !important;
}

.toggle-line {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.toggle-line input {
  width: auto;
}

.session-guide {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  padding: 1px;
  border-bottom: 1px solid var(--line);
  background: var(--line);
}

.session-step {
  padding: 12px;
  color: var(--muted);
  background: #f5efe3;
  font-weight: 800;
  text-align: center;
  cursor: pointer;
}

.session-step.active {
  color: white;
  background: var(--leaf);
}

.progress-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: #fffaf0;
}

.progress-strip div {
  padding: 12px;
  border-right: 1px solid var(--line);
}

.progress-strip div:last-child {
  border-right: 0;
}

.progress-strip span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.progress-strip strong {
  display: block;
  margin-top: 4px;
  color: var(--blue);
  font-size: 20px;
}

.intro p {
  max-width: 900px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.5;
}

.defense-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: 12px;
  margin: -4px 0 18px;
}

.defense-strip article {
  min-height: 150px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.60);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.66));
  box-shadow: 0 12px 30px rgba(26, 35, 31, .08);
  backdrop-filter: blur(14px);
  transition: transform .18s ease, box-shadow .18s ease;
}

.defense-strip article:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 44px rgba(26, 35, 31, .12);
}

.defense-strip span {
  display: inline-grid;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  place-items: center;
  border-radius: 999px;
  color: white;
  background: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.defense-strip strong {
  display: block;
  color: var(--ink);
}

.defense-strip p {
  margin: 8px 0 0;
  color: #46554f;
  font-size: 14px;
  line-height: 1.45;
}

.jury-demo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid rgba(255,255,255,.62);
  border-radius: 28px;
  background:
    radial-gradient(circle at 0% 0%, rgba(244, 185, 66, .18), transparent 15rem),
    rgba(255,255,255,.80);
  box-shadow: 0 18px 52px rgba(19, 31, 49, .13);
  backdrop-filter: blur(18px);
}

.jury-demo h2 {
  margin-bottom: 8px;
  font-size: clamp(25px, 3vw, 38px);
}

.jury-demo p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

#demoStageCopy strong {
  color: var(--blue);
}

.demo-rail {
  display: flex;
  gap: 7px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(24, 38, 55, .06);
}

.demo-step {
  width: 34px;
  height: 34px;
  min-height: 34px;
  padding: 0;
  border-radius: 999px;
  color: var(--muted);
  background: white;
  box-shadow: none;
}

.demo-step.active {
  color: white;
  background: var(--blue);
  transform: scale(1.08);
}

.demo-actions {
  display: grid;
  gap: 8px;
  min-width: 190px;
}

body.mode-technical .defense-strip article {
  background: var(--panel);
}

body.mode-technical .defense-strip p {
  color: #d9e5e0;
}

.control-panel,
.results {
  border-radius: 24px;
}

.status-card {
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.topbar .status-card {
  position: absolute;
  z-index: 3;
  top: 20px;
  right: 22px;
  width: min(100%, 178px);
  padding: 12px 14px;
  border-color: rgba(255,255,255,.22);
  border-radius: 22px;
  background: rgba(255,255,255,.13);
  backdrop-filter: blur(18px);
}

.status-card span,
label,
.metrics span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-card strong {
  display: block;
  margin-top: 6px;
  color: var(--leaf);
  font-size: 19px;
}

.topbar .status-card span {
  color: rgba(255,255,255,.72);
}

.topbar .status-card strong {
  color: #8ee4c8;
}

.workspace {
  grid-template-columns: 380px minmax(0, 1fr);
  align-items: start;
}

.control-panel,
.results {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 22px 58px var(--shadow);
}

.control-panel {
  position: sticky;
  top: 16px;
  display: grid;
  gap: 14px;
  padding: 18px;
  border-left: 8px solid rgba(36, 91, 255, .30);
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mode-preset-panel {
  display: grid;
  gap: 7px;
  padding: 12px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--blue);
  border-radius: 8px;
  background: rgba(255, 250, 240, .72);
}

.mode-preset-panel strong {
  color: var(--blue);
}

.mode-preset-panel span {
  color: #46554f;
  font-size: 13px;
  line-height: 1.4;
}

.mode-preset-panel em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

body.mode-technical .mode-preset-panel {
  background: #10161b;
}

body.mode-technical .mode-preset-panel span {
  color: #d9e5e0;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 7px;
  padding: 11px 12px;
  border: 1px solid rgba(24, 38, 55, .18);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, .76);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(36, 91, 255, .16);
  border-color: rgba(36, 91, 255, .55);
}

textarea {
  resize: vertical;
}

.upload-box {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px dashed #b9ad9c;
  border-radius: 8px;
  background: #f7efe2;
}

.upload-box p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.upload-box input {
  margin-top: 0;
  background: white;
}

.upload-status {
  padding: 10px;
  border-radius: 6px;
  color: #355047;
  background: #e8f1ec;
  font-size: 13px;
  line-height: 1.4;
}

button {
  min-height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 6px;
  color: white;
  background: var(--leaf);
  cursor: pointer;
}

button:hover {
  filter: brightness(0.96);
}

.secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: white;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(82px, 1fr));
  gap: 6px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.62), rgba(255,255,255,.28));
}

.tab {
  display: grid;
  gap: 5px;
  justify-items: center;
  align-content: center;
  min-height: 68px;
  padding: 8px 6px;
  color: var(--muted);
  border: 1px solid rgba(24, 38, 55, .10);
  border-radius: 18px;
  background: rgba(255, 255, 255, .66);
  box-shadow: none;
  transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
}

.tab:last-child {
  border-right: 0;
}

.tab:hover {
  transform: translateY(-2px);
  color: var(--blue);
  background: rgba(255, 255, 255, .90);
  box-shadow: 0 12px 24px rgba(19, 31, 49, .08);
}

.tab.active {
  color: white;
  border-color: transparent;
  background: linear-gradient(135deg, var(--blue), var(--leaf));
  box-shadow: 0 14px 32px rgba(36, 91, 255, .18);
}

.tab-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 12px;
  color: var(--blue);
  background: rgba(36, 91, 255, .08);
  font-size: 17px;
  line-height: 1;
}

.tab.active .tab-icon {
  color: #0e2530;
  background: rgba(255,255,255,.82);
}

.tab-label {
  font-size: 12px;
  font-weight: 850;
}

body.kid-mode .tab[data-tab="proof"],
body.kid-mode .tab[data-tab="teach"],
body.kid-mode .tab[data-tab="planner"] {
  opacity: .45;
}

body.kid-mode .tab[data-tab="kid"],
body.kid-mode .tab[data-tab="play"] {
  color: white;
  background: var(--brick);
}

body:not(.kid-mode) .tab[data-tab="kid"],
body:not(.kid-mode) .tab[data-tab="play"],
body:not(.kid-mode) #kidPanel,
body:not(.kid-mode) #playPanel {
  display: none;
}

.tab[data-tab="tools"],
.tab[data-tab="clinic"],
.tab[data-tab="media"],
#clinicPanel,
#mediaPanel {
  display: none;
}

label[for="answerInput"],
#answerInput {
  display: none !important;
}

body.kid-mode .control-panel,
body.kid-mode .results,
body.kid-mode .intro,
body.kid-mode .account-ribbon,
body.kid-mode .language-ribbon {
  border-width: 3px;
  box-shadow: 0 18px 0 rgba(34, 48, 85, .10);
}

.panel {
  display: none;
  min-height: 590px;
  padding: 24px;
  opacity: 0;
  transform: translateY(10px);
}

.panel.active {
  display: block;
  animation: panelIn .24s ease forwards;
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.kid-layout {
  display: grid;
  grid-template-columns: 1.2fr .9fr .9fr;
  gap: 14px;
}

.kid-card {
  min-height: 210px;
  padding: 20px;
  border: 3px solid #223055;
  border-radius: 18px;
  background: #fffdf2;
}

.kid-card.big {
  background: #f7ffc9;
}

.kid-badge {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  margin-bottom: 12px;
  border-radius: 50%;
  color: white;
  background: var(--brick);
  font-size: 22px;
  font-weight: 900;
}

.kid-card h4 {
  color: #223055;
  font-size: 24px;
}

.kid-card p {
  color: #35416e;
  font-size: 18px;
  line-height: 1.45;
}

.kid-character {
  display: inline-grid;
  min-width: 84px;
  min-height: 84px;
  place-items: center;
  margin-bottom: 12px;
  padding: 10px;
  border: 3px solid #223055;
  border-radius: 20px;
  color: #223055;
  background: #fff6b8;
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.kid-character::before {
  display: block;
  font-size: 34px;
  line-height: 1;
}

.kid-character.owl::before { content: "🦉"; }
.kid-character.turtle::before { content: "🐢"; }
.kid-character.fox::before { content: "🦊"; }
.kid-character.bull::before { content: "🐂"; }
.kid-character.elephant::before { content: "🐘"; }
.kid-character.raccoon::before { content: "🦝"; }
.kid-character.dolphin::before { content: "🐬"; }

.play-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.play-card {
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 260px;
  padding: 18px;
  border: 3px solid #223055;
  border-radius: 18px;
  background: #fffdf2;
}

.play-card h4 {
  color: #223055;
  font-size: 24px;
}

.puzzle-tiles,
.match-game {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.puzzle-tiles span,
.match-game span {
  padding: 8px 10px;
  border: 2px solid #223055;
  border-radius: 10px;
  background: #f7ffc9;
  color: #223055;
  font-weight: 800;
}

.maze-board {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  max-width: 300px;
}

.maze-board span {
  display: grid;
  min-height: 34px;
  place-items: center;
  border-radius: 6px;
  background: #dceee5;
}

.maze-board .wall {
  background: #223055;
}

.panel-head {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 22px;
}

.pill {
  flex: 0 0 auto;
  padding: 8px 11px;
  border-radius: 999px;
  color: #32230c;
  background: #f3dc95;
  font-size: 13px;
  font-weight: 800;
}

.main-copy {
  max-width: 880px;
  color: #24332e;
  font-size: 20px;
  line-height: 1.55;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 20px;
}

.audience-panel {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
  margin-top: 18px;
}

.audience-panel > div {
  padding: 15px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--leaf);
  border-radius: 8px;
  background: rgba(255, 250, 240, .82);
}

.audience-panel span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.audience-panel strong {
  display: block;
  color: var(--blue);
}

.audience-panel p {
  margin: 8px 0 0;
  color: #46554f;
  line-height: 1.45;
}

.learning-os-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.learning-os-panel article {
  min-height: 170px;
  padding: 15px;
  border: 1px solid var(--line);
  border-top: 6px solid var(--blue);
  border-radius: 8px;
  background: rgba(255, 250, 240, .86);
}

.learning-os-panel span {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 7px;
  border-radius: 6px;
  color: white;
  background: var(--leaf);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.learning-os-panel strong,
.source-ledger strong,
.myth-check strong {
  display: block;
  color: var(--blue);
}

.learning-os-panel p,
.source-ledger p,
.myth-check p {
  margin: 8px 0 0;
  color: #46554f;
  line-height: 1.45;
}

.source-ledger,
.myth-check {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.source-ledger article,
.myth-check article {
  padding: 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--brick);
  border-radius: 8px;
  background: #fffaf0;
}

body.mode-technical .audience-panel > div {
  background: #10161b;
}

body.mode-technical .audience-panel p,
body.mode-technical .learning-os-panel p,
body.mode-technical .source-ledger p,
body.mode-technical .myth-check p {
  color: #d9e5e0;
}

body.mode-technical .learning-os-panel article,
body.mode-technical .source-ledger article,
body.mode-technical .myth-check article {
  background: #10161b;
}

.reading-map {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 20px 0 0;
}

article,
.reading-map div,
.stack-item,
.question,
.lesson-block {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
}

article p,
.reading-map p,
.stack-item p,
.question p,
.lesson-block p,
.lesson-block li {
  color: #46554f;
  line-height: 1.5;
}

.reading-map strong {
  display: block;
  margin-bottom: 6px;
  color: var(--brick);
}

.stack,
.question-list,
.lesson {
  display: grid;
  gap: 12px;
}

.stack-item strong,
.question strong {
  display: block;
  margin-bottom: 6px;
  color: var(--blue);
}

.flashcard-deck {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid rgba(31, 95, 126, .14);
  border-radius: 24px;
  background:
    radial-gradient(circle at 92% 10%, rgba(36, 91, 255, .10), transparent 13rem),
    linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(244, 248, 246, .84));
  box-shadow: 0 18px 40px rgba(19, 31, 49, .10);
}

.flashcard-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.flashcard-head h4 {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: 20px;
}

.flashcard-head > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.flashcard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.flashcard {
  min-height: 184px;
  padding: 16px;
  border: 1px solid rgba(31, 95, 126, .14);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .96), rgba(251, 247, 239, .90));
  transform-style: preserve-3d;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.flashcard:hover,
.flashcard:focus {
  border-color: rgba(36, 91, 255, .32);
  box-shadow: 0 18px 32px rgba(19, 31, 49, .14);
  transform: translateY(-4px) rotate(-.5deg);
  outline: none;
}

.flashcard span {
  display: inline-grid;
  width: 32px;
  height: 32px;
  margin-bottom: 24px;
  place-items: center;
  border-radius: 12px;
  color: white;
  background: var(--blue);
  font-size: 12px;
  font-weight: 950;
}

.flashcard strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
}

.flashcard p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.tag {
  padding: 6px 8px;
  border-radius: 6px;
  color: #173225;
  background: #dceee5;
  font-size: 12px;
  font-weight: 800;
}

.lesson-block ul,
.lesson-block ol {
  margin-bottom: 0;
  padding-left: 22px;
}

.demo-script {
  margin-top: 14px;
}

.demo-script-card {
  border-color: rgba(47, 125, 95, .36);
  border-left: 8px solid var(--leaf);
  background: linear-gradient(135deg, rgba(47, 125, 95, .12), rgba(255, 250, 240, .96));
}

.demo-script-card strong {
  display: block;
  color: var(--leaf);
  font-size: 18px;
}

.demo-script-card li {
  margin: 8px 0;
  color: #46554f;
  line-height: 1.5;
}

body.mode-technical .demo-script-card {
  background: #10161b;
}

body.mode-technical .demo-script-card li {
  color: #d9e5e0;
}

.project-repository {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7efe2;
}

.repo-head {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
}

.repo-head span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.repo-head strong {
  display: block;
  margin-top: 4px;
  color: var(--blue);
}

.project-list {
  display: grid;
  gap: 6px;
  max-height: 170px;
  overflow: auto;
}

.project-list button {
  min-height: 36px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fffaf0;
  text-align: left;
}

.project-list button.active {
  color: white;
  border-color: var(--blue);
  background: var(--blue);
}

.tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 14px;
}

.tool-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.tool-card-head {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.tool-card-head h4 {
  margin-bottom: 0;
}

.notes-card,
.sketch-card {
  grid-column: span 1;
}

.sketch-card {
  grid-column: 1 / -1;
}

.calc-buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.calc-buttons button {
  min-height: 36px;
  padding: 0;
  background: var(--blue);
}

.finance-helpers {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.scientific-helpers {
  display: none;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

.scientific-helpers.active {
  display: grid;
}

.scientific-helpers button {
  min-height: 34px;
  padding: 0;
  color: white;
  background: var(--brick);
  font-size: 13px;
}

.finance-helpers.active {
  display: grid;
}

.finance-helpers button {
  min-height: 34px;
  padding-inline: 8px;
  background: var(--leaf);
}

.tool-output,
.lap-list {
  min-height: 42px;
  margin: 0;
  padding: 10px;
  border-radius: 6px;
  background: #eef3ef;
}

.timer-display {
  padding: 18px;
  border-radius: 8px;
  color: white;
  background: var(--ink);
  font-size: 48px;
  font-weight: 900;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.button-row.three {
  grid-template-columns: 1fr 1fr 1fr;
}

.lap-list {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 13px;
}

.study-schedule {
  display: grid;
  gap: 6px;
}

.study-schedule div {
  padding: 8px;
  border-radius: 6px;
  background: #fffaf0;
  color: #46554f;
  font-size: 13px;
}

#sketchCanvas {
  width: 100%;
  min-height: 520px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  touch-action: none;
}

#toolsPanel {
  display: none;
  position: fixed;
  right: 18px;
  bottom: 128px;
  z-index: 22;
  width: min(430px, calc(100vw - 36px));
  max-height: min(76vh, 720px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 250, 240, 0.96);
  box-shadow: 0 18px 46px rgba(26, 35, 31, .24);
  transform: none;
  transition: max-height .2s ease, width .2s ease, box-shadow .2s ease;
  opacity: 1;
  transform: none;
}

body.tools-open #toolsPanel {
  display: block;
  box-shadow: 0 26px 70px rgba(26, 35, 31, .30);
}

#toolsPanel::before {
  content: attr(data-tools-label);
  position: absolute;
  top: 16px;
  right: 18px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  color: white;
  background: var(--blue);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  box-shadow: 0 10px 24px rgba(26, 35, 31, .18);
}

#toolsPanel .panel-head {
  min-height: 42px;
  padding-right: 132px;
}

#toolsPanel .tool-grid {
  grid-template-columns: 1fr;
  margin-top: 12px;
}

#sketchCanvas {
  min-height: 420px;
}

#floatToolsButton {
  display: none;
}

.chat-dock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  width: min(380px, calc(100vw - 36px));
  display: grid;
  gap: 8px;
}

#chatToggle,
#toolsToggle {
  width: 100%;
  box-shadow: 0 12px 28px rgba(26, 35, 31, 0.24);
}

#toolsToggle {
  background: var(--blue);
}

body.tools-open #toolsToggle {
  background: var(--brick);
}

.listen-section-btn {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: grid;
  width: 34px;
  height: 34px;
  min-height: 0;
  padding: 0;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--leaf));
  font-size: 17px;
  line-height: 1;
  box-shadow: 0 10px 24px rgba(19, 31, 49, .18);
}

.listen-section-btn:hover {
  transform: translateY(-2px);
}

.listen-section-btn.playing {
  background: linear-gradient(135deg, var(--leaf), var(--teal));
  box-shadow: 0 0 0 4px rgba(80, 184, 147, .16), 0 10px 24px rgba(19, 31, 49, .18);
}

.listen-section-btn.paused {
  color: var(--ink);
  background: var(--gold);
}

.listen-enabled {
  position: relative;
  padding-right: max(var(--listen-pad, 0px), 48px);
}

.chat-panel {
  display: none;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 44px rgba(26, 35, 31, 0.24);
  overflow: hidden;
}

.chat-panel.open {
  display: block;
}

.help-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: rgba(10, 15, 18, .46);
}

.help-modal.open {
  display: flex;
}

.help-card {
  width: min(920px, 100%);
  max-height: min(720px, 88vh);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(10, 15, 18, .28);
}

.help-head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.help-head h2 {
  margin: 3px 0 0;
}

.help-content {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.help-content article {
  margin: 0;
}

.help-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  overflow: hidden;
}

.help-section summary {
  cursor: pointer;
  padding: 14px 16px;
  color: var(--blue);
  font-weight: 900;
}

.help-section-body {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 16px;
  padding: 0 16px 16px;
}

.help-shot {
  position: relative;
  min-height: 150px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(49, 94, 138, .14) 0 28%, transparent 28%),
    linear-gradient(#fffdf7, #f7efe2);
}

.help-shot::before,
.help-shot::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 12px;
  border-radius: 999px;
  background: rgba(47, 125, 95, .22);
}

.help-shot::before {
  top: 20px;
}

.help-shot::after {
  top: 48px;
  width: 54%;
}

.help-callout {
  position: absolute;
  padding: 5px 7px;
  border-radius: 999px;
  color: white;
  background: var(--brick);
  font-size: 11px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(26, 35, 31, .14);
}

.help-callout::after {
  content: "";
  position: absolute;
  width: 24px;
  border-top: 2px solid var(--brick);
  transform-origin: left center;
}

.help-callout.c1 {
  left: 18px;
  top: 78px;
}

.help-callout.c1::after {
  left: 100%;
  top: 50%;
  transform: rotate(-18deg);
}

.help-callout.c2 {
  right: 12px;
  top: 42px;
  background: var(--blue);
}

.help-callout.c2::after {
  right: 100%;
  top: 50%;
  border-color: var(--blue);
  transform: rotate(160deg);
}

.help-callout.c3 {
  right: 24px;
  bottom: 18px;
  background: var(--leaf);
}

.help-callout.c3::after {
  right: 100%;
  top: 50%;
  border-color: var(--leaf);
  transform: rotate(200deg);
}

.help-section p {
  margin-top: 0;
}

.help-section ol {
  margin: 8px 0 0;
  padding-left: 20px;
}

.help-jump {
  margin-top: 12px;
  min-height: 34px;
  padding-inline: 12px;
  background: var(--blue);
}

.app-footer {
  width: min(100%, 1320px);
  margin: 18px auto 80px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.chat-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  color: white;
  background: var(--blue);
}

.chat-head span {
  font-size: 12px;
  opacity: .82;
}

.chat-log {
  display: grid;
  gap: 8px;
  max-height: 260px;
  overflow: auto;
  padding: 12px;
}

.chat-message {
  padding: 10px;
  border-radius: 8px;
  background: #f7efe2;
  color: #46554f;
  line-height: 1.4;
}

.chat-message.user {
  color: white;
  background: var(--leaf);
}

.chat-input-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--line);
}

.icon-button {
  min-width: 48px;
  padding-inline: 10px;
}

.planner-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.planner-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
}

.planner-card.wide {
  grid-column: 1 / -1;
}

.learning-feed,
.agenda-list {
  display: grid;
  gap: 8px;
}

.learning-item,
.agenda-item {
  padding: 10px;
  border-radius: 6px;
  background: #eef3ef;
  color: #46554f;
  line-height: 1.45;
}

.learning-item strong,
.agenda-item strong {
  display: block;
  color: var(--blue);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-day {
  min-height: 82px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  font-size: 12px;
}

.calendar-day strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
}

.calendar-dot {
  display: block;
  margin-top: 4px;
  padding: 3px 5px;
  border-radius: 5px;
  color: white;
  background: var(--brick);
}

.assessment-grid {
  display: grid;
  gap: 10px;
}

.assessment-grid label {
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
}

.media-layout {
  display: grid;
  gap: 16px;
}

.integrated-media-section,
.integrated-mindmap-section {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.integrated-media-section .panel-head,
.integrated-mindmap-section .panel-head {
  margin-bottom: 12px;
}

.visual-board {
  min-height: 260px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #101412;
}

.visual-board svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 260px;
}

.media-cards,
.storyboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.media-cards {
  grid-template-columns: 1.1fr repeat(3, 1fr);
}

.media-card,
.story-step {
  position: relative;
  min-height: 150px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  overflow: hidden;
}

.media-rich {
  display: grid;
  gap: 10px;
  min-height: 330px;
  align-content: start;
}

.media-figure {
  position: relative;
  z-index: 1;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(31, 95, 126, .14);
  border-radius: 16px;
  background: white;
  box-shadow: 0 14px 28px rgba(19, 31, 49, .09);
}

.media-figure svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 144px;
}

.media-figure figcaption {
  padding: 8px 10px;
  color: var(--muted);
  background: rgba(255, 255, 255, .82);
  border-top: 1px solid rgba(31, 95, 126, .10);
  font-size: 11px;
  font-weight: 800;
}

.media-card::before,
.story-step::before {
  content: "";
  position: absolute;
  inset: auto -30px -48px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(49, 94, 138, 0.14);
}

.media-card strong,
.story-step strong {
  position: relative;
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
}

.media-card p,
.story-step p {
  position: relative;
  margin-bottom: 0;
  color: #46554f;
  line-height: 1.45;
}

.video-teaser {
  position: relative;
  min-height: 150px;
  padding: 16px;
  border: 1px solid rgba(23, 109, 143, .18);
  border-radius: 12px;
  color: white;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(20, 37, 49, .92), rgba(23, 109, 143, .78)),
    radial-gradient(circle at 85% 12%, rgba(244, 185, 66, .28), transparent 12rem);
}

.video-teaser::after {
  content: "";
  position: absolute;
  right: -26px;
  bottom: -42px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  border: 24px solid rgba(255,255,255,.12);
}

.play-mark {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 14px;
  place-items: center;
  border-radius: 999px;
  color: #142531;
  background: #8ee4c8;
  font-weight: 900;
}

.video-teaser strong,
.video-teaser p {
  position: relative;
  z-index: 1;
}

.video-teaser p {
  margin: 8px 0 0;
  color: rgba(255,255,255,.82);
  overflow-wrap: anywhere;
}

.media-rich {
  overflow: hidden;
  padding-top: 58px;
}

.media-thumb {
  position: absolute;
  top: 12px;
  left: 14px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: white;
  background: var(--blue);
  font-weight: 900;
}

.media-rich.theme-energy .media-thumb {
  background: #1f9f7a;
}

.media-rich.theme-misinformation .media-thumb {
  background: #ef6a4d;
}

.media-rich.theme-healthcare-ai .media-thumb {
  background: #7b61ff;
}

.mindmap-section {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.8);
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-title-row h4 {
  margin: 4px 0 0;
}

.mindmap-label {
  color: var(--brick);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.mind-map {
  display: block;
}

.mind-poster {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: #fbfefd;
  box-shadow: inset 0 0 0 1px rgba(20, 37, 49, .08);
}

.scenario-mind-svg {
  display: block;
  width: 100%;
  min-height: 640px;
}

.branch-stroke {
  opacity: .88;
  filter: drop-shadow(0 9px 7px rgba(20, 37, 49, .10));
  stroke-dasharray: 1 0;
}

.mind-fo-card {
  height: 100%;
  padding: 13px 15px;
  border: 2px solid rgba(20, 37, 49, .10);
  border-left: 8px solid var(--branch, var(--blue));
  border-radius: 18px;
  color: #142531;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 18px 38px rgba(20, 37, 49, .14);
  overflow: hidden;
}

.mind-fo-card small {
  display: block;
  margin-bottom: 4px;
  color: var(--branch, var(--blue));
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mind-fo-card strong {
  display: block;
  margin-bottom: 6px;
  color: #15345a;
  font-size: 16px;
  line-height: 1.05;
}

.mind-fo-card p {
  margin: 0;
  color: #465968;
  font-size: 12px;
  line-height: 1.32;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mind-root-card {
  display: grid;
  align-content: center;
  text-align: center;
  border-left: 0;
  border: 4px solid rgba(23, 109, 143, .20);
  border-radius: 34px;
  background:
    radial-gradient(circle at 50% 16%, rgba(255,255,255,.96), rgba(232,244,241,.92)),
    #eff9f7;
}

.mind-root-card strong {
  font-size: 20px;
}

.mind-icon {
  display: inline-grid;
  min-width: 58px;
  min-height: 26px;
  margin: 0 auto 7px;
  padding: 5px 10px;
  place-items: center;
  border-radius: 999px;
  color: white;
  background: #176d8f;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.mind-subnodes {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 7px;
}

.mind-subnodes span {
  padding: 3px 7px;
  border-radius: 999px;
  color: #193547;
  background: #e5eef4;
  font-size: 10px;
  font-weight: 800;
}

.mind-fo-card .node-links {
  margin-top: 7px;
  opacity: .78;
}

.mind-fo-card .node-link {
  min-height: 20px;
  padding: 2px 7px;
  font-size: 9px;
  color: white;
}

.mini-node text {
  letter-spacing: .02em;
}

.mind-energy .mind-root-card {
  border-color: rgba(31, 159, 122, .28);
}

.mind-misinformation .mind-root-card {
  border-color: rgba(239, 106, 77, .30);
}

.mind-healthcare .mind-root-card {
  border-color: rgba(123, 97, 255, .26);
}

.mind-node {
  position: relative;
  min-height: 140px;
  padding: 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--green);
  border-radius: 8px;
  background: #fffdf7;
  outline: none;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.mind-node::after {
  content: "";
  position: absolute;
  right: -12px;
  top: 50%;
  width: 22px;
  border-top: 2px solid rgba(49, 94, 138, 0.35);
}

.mind-canvas {
  position: relative;
  min-height: 430px;
  padding: 22px;
  border-radius: 18px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.96), rgba(255,255,255,.64)),
    linear-gradient(90deg, rgba(23, 109, 143, .06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23, 109, 143, .05) 1px, transparent 1px);
  background-size: auto, 34px 34px, 34px 34px;
}

.mind-branches {
  position: absolute;
  inset: 12px;
  width: calc(100% - 24px);
  height: calc(100% - 24px);
  opacity: .78;
  pointer-events: none;
}

.mind-node.root {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: min(300px, 34%);
  min-height: 170px;
  transform: translate(-50%, -50%);
  border-left-color: var(--blue);
  border-radius: 30px;
  text-align: center;
  background: #f7fbff;
  box-shadow: 0 22px 54px rgba(19, 31, 49, .16);
}

.mind-node.branch {
  position: absolute;
  z-index: 2;
  width: min(280px, 31%);
  min-height: 130px;
  border-left: 8px solid var(--branch, var(--blue));
  border-radius: 18px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 16px 34px rgba(19, 31, 49, .10);
}

.branch-0 {
  right: 24px;
  top: 24px;
}

.branch-1 {
  left: 24px;
  top: 98px;
}

.branch-2 {
  right: 24px;
  bottom: 98px;
}

.branch-3 {
  left: 24px;
  bottom: 24px;
}

.mind-node.branch::after,
.mind-node.root::after {
  display: none;
}

.mind-node:hover,
.mind-node:focus-within {
  transform: translateY(-2px);
  border-color: var(--blue);
  box-shadow: 0 14px 28px rgba(26, 35, 31, .12);
}

.mind-node strong {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
}

.mind-node p {
  margin: 0;
  color: #46554f;
  line-height: 1.45;
}

.node-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  opacity: .35;
  transition: opacity .15s ease;
}

.mind-node:hover .node-links,
.mind-node:focus-within .node-links {
  opacity: 1;
}

.node-link {
  min-height: 28px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 11px;
  background: var(--blue);
}

.mindmap-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

body.mode-technical .mindmap-section,
body.mode-technical .mind-node {
  background: #fbfefd;
}

body.mode-technical .mind-node p,
body.mode-technical .mindmap-note {
  color: #314653;
}

.media-icon {
  position: relative;
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 10px;
  border-radius: 50%;
  color: white;
  background: var(--brick);
  font-weight: 900;
}

@media (max-width: 980px) {
  .topbar,
  .devpost-pitch,
  .intro,
  .workspace,
  .account-ribbon,
  .account-fields,
  .tool-grid,
  .voice-console,
  .landing-showcase,
  .defense-strip,
  .edge-head,
  .maturity-strip,
  .flashcard-grid,
  .jury-demo,
  .start-screen {
    grid-template-columns: 1fr;
  }

  .edge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .voice-console {
    right: 18px;
    width: min(520px, calc(100vw - 36px));
  }

  .control-panel {
    position: static;
  }

  .topbar {
    position: relative;
    min-height: auto;
  }

  .topbar .status-card {
    position: static;
    width: 100%;
    max-width: 260px;
    margin: 0 0 10px auto;
    justify-self: end;
  }

  .hero-copy {
    align-content: start;
  }

  .hero-visual {
    min-height: 240px;
  }
}

@media (max-width: 680px) {
  .app-shell {
    width: min(100% - 18px, 1320px);
  }

  .tabs,
  .session-guide,
  .progress-strip,
  .pitch-grid,
  .field-grid,
  .card-grid,
  .audience-panel,
  .defense-strip,
  .learning-os-panel,
  .source-ledger,
  .myth-check,
  .reading-map,
  .mind-map,
  .media-cards,
  .storyboard,
  .planner-layout,
  .kid-layout,
  .play-layout,
  .voice-grid,
  .edge-grid,
  .language-ribbon {
    grid-template-columns: 1fr;
  }

  .tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .demo-rail {
    justify-content: center;
  }

  .planner-card.wide {
    grid-column: auto;
  }

  .language-ribbon {
    display: grid;
    align-items: start;
  }

  .topbar {
    padding: 24px;
  }

  .hero-visual {
    display: none;
  }

  .hero-badges,
  .prompt-suggestions {
    gap: 6px;
  }

  .language-buttons {
    justify-content: flex-start;
  }

  .panel-head {
    display: block;
  }

  .pill {
    display: inline-block;
    margin-top: 12px;
  }
}