/* ═══════════════════════════════════════════════════════
   Metacogni — Design System Completo & Fiel ao HTML Original
   ═══════════════════════════════════════════════════════ */

:root {
  --ink: #0d2140;
  --ink2: #1c2b42;
  --ink3: #415a77;
  --mut: #64728a;
  --bg: #f2f5fa;
  --card: #ffffff;
  --line: #e2e8f1;
  --pri: #0f2c52;
  --pri2: #1b477f;
  --pri-soft: #e8f0fe;
  --acc: #e8590c;
  --accsoft: #fff3ea;
  --acc-soft: #fff3ea;
  --ok: #0f8a5f;
  --oksoft: #e8f7f1;
  --ok-soft: #e8f7f1;
  --bad: #c53a32;
  --badsoft: #fdeceb;
  --bad-soft: #fdeceb;
  --warn: #d98a00;
  --warn-soft: #fff8e6;
  --serif: 'Lexend', 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  --sans: 'Lexend', 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  --r: 14px;
  --r-sm: 8px;
  --r-lg: 20px;
  --sh-sm: 0 1px 2px rgba(15,44,82,.04);
  --sh: 0 1px 2px rgba(15,44,82,.05), 0 6px 22px rgba(15,44,82,.06);
  --sh-lg: 0 4px 12px rgba(15,44,82,.06), 0 20px 48px rgba(15,44,82,.1);
  --sh-glow: 0 0 0 3px rgba(232,89,12,.15);
  --ease: cubic-bezier(.4, 0, .2, 1);
  --dur: 200ms;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink2);
  font: 16px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, select, input, textarea { font-family: var(--sans); }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

svg.i {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}
.icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.app {
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr);
  min-height: 100vh;
}

/* ── Sidebar ── */
aside {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  background: #0f2c52 center bottom/cover no-repeat;
  color: #e9effa;
  padding: 28px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  z-index: 25;
}
.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 0 8px;
  text-decoration: none;
}
.logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--acc);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 6px 18px rgba(232,89,12,.4);
  flex-shrink: 0;
}
.logo svg { width: 24px; height: 24px; }
.brand b { display: block; font: 600 17px/1.2 var(--sans); color: #fff; }
.brand small { font: 12.5px/1.35 var(--sans); color: #9fb3d3; display: block; margin-top: 3px; }

nav { display: flex; flex-direction: column; gap: 3px; }
nav button {
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: 0;
  color: #c5d3ea;
  padding: 11px 12px;
  border-radius: 11px;
  font: 500 14.5px var(--sans);
  text-align: left;
  transition: .15s;
  width: 100%;
}
nav button:hover { background: rgba(255,255,255,.08); color: #fff; }
nav button.on {
  background: #fff;
  color: var(--pri);
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(0,0,0,.2);
}
.bd {
  margin-left: auto;
  background: var(--acc);
  color: #fff;
  border-radius: 99px;
  font: 600 11px var(--sans);
  padding: 2px 8px;
}
.bd:empty { display: none; }
nav button.on .bd { background: var(--accsoft); color: var(--acc); }

.side-foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font: 13px var(--sans);
}
.prog b { color: #fff; }
.bar {
  height: 6px;
  background: rgba(255,255,255,.14);
  border-radius: 99px;
  overflow: hidden;
  margin: 8px 0 0;
}
.bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #ff8a3d, var(--acc));
  border-radius: 99px;
  width: 0;
  transition: width .4s;
}
#svs { color: #9fb3d3; font-size: 12px; }
.sbtn { display: flex; gap: 8px; }
.sbtn button {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  padding: 8px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color: #e9effa;
  font: 500 12.5px var(--sans);
}
.sbtn button:hover { background: rgba(255,255,255,.14); }
.lnk {
  color: #ffcfa8;
  text-decoration: none;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12.5px;
}
.lnk:hover { text-decoration: underline; }

/* ── Conteúdo Principal ── */
main {
  padding: 44px clamp(20px, 4.5vw, 64px) 140px;
  max-width: 1040px;
  width: 100%;
}
section { display: none; }
section.on {
  display: block;
  animation: in .28s ease;
}
@keyframes in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.ph {
  margin: 0 0 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.ph:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 3px;
  background: var(--acc);
  border-radius: 3px;
}
.ph h2 {
  margin: 0;
  font: 600 31px/1.2 var(--sans);
  color: var(--ink);
  letter-spacing: -.5px;
}
.ph p {
  margin: 10px 0 0;
  font: 14.5px/1.6 var(--sans);
  color: var(--mut);
  max-width: 64ch;
}

.tool {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 0 16px;
  font: 13.5px var(--sans);
  color: var(--mut);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 8px 14px;
  font: 500 13.5px var(--sans);
  color: var(--ink2);
  transition: .15s;
  text-decoration: none;
}
.btn:hover { border-color: #c5d0e2; background: #f8fafd; }
.btn.p, .btn-primary {
  background: var(--pri);
  color: #fff;
  border-color: var(--pri);
}
.btn.p:hover, .btn-primary:hover { background: var(--pri2); }
.btn.on {
  background: var(--accsoft);
  border-color: #ffc9a3;
  color: #b8410a;
}
.btn.sm, .btn-sm { padding: 5px 11px; font-size: 12.5px; border-radius: 8px; }
.btn.gh, .btn-ghost {
  border-color: transparent;
  background: none;
  color: var(--mut);
}
.btn.gh:hover, .btn-ghost:hover { background: #eef2f9; color: var(--ink); }
.btn.gh.on { background: var(--accsoft); color: #b8410a; }
.btn.dg:hover { color: var(--bad); background: var(--badsoft); }
.btn:disabled { opacity: .7; cursor: default; }

.chip {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 99px;
  padding: 5px 14px;
  font: 500 13px var(--sans);
  color: var(--mut);
  transition: .15s;
  cursor: pointer;
}
.chip:hover { border-color: #c5d0e2; color: var(--ink); }
.chip.on, .chip.active {
  background: var(--pri);
  border-color: var(--pri);
  color: #fff;
}

.tag {
  font: 600 11.5px var(--sans);
  background: #eaf0fa;
  color: var(--pri2);
  border-radius: 99px;
  padding: 3px 10px;
  display: inline-block;
}
.tag-warn { background: var(--warn-soft); color: var(--warn); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 24px;
  margin-bottom: 16px;
  box-shadow: var(--sh);
}
.empty {
  text-align: center;
  color: var(--mut);
  font: 15px/1.6 var(--sans);
  padding: 44px 20px;
  border: 1.5px dashed #cfd8e6;
  border-radius: var(--r);
  background: #f8fafd;
}
.inp {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 14px;
  font: 14px var(--sans);
  min-width: 240px;
  background: #fff;
}
.note, .textarea {
  width: 100%;
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: 400 14.5px/1.65 var(--sans);
  margin-top: 10px;
  resize: vertical;
  background: #fcfdff;
  color: var(--ink2);
}

/* ── Teoria ── */
#theory details.t {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  margin-bottom: 12px;
  box-shadow: var(--sh);
  position: relative;
}
details.t > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  font: 600 16px/1.4 var(--sans);
  color: var(--ink);
  cursor: pointer;
  border-radius: var(--r);
}
details.t > summary::-webkit-details-marker { display: none; }
details.t > summary:before {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--acc);
  border-bottom: 2px solid var(--acc);
  transform: rotate(-45deg);
  transition: transform .2s;
  margin: 0 4px 0 2px;
  flex: none;
}
details.t[open] > summary:before { transform: rotate(45deg); }
details.t > ul, details.t > .box { margin: 0 22px 16px; }
details.t > ul { padding-left: 20px; }
details.t > table { width: calc(100% - 44px); margin: 0 22px 16px; }

li { margin-bottom: 5px; }
li::marker { color: var(--acc); }
table {
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  font: 14.5px/1.5 var(--sans);
  width: 100%;
}
th { background: #f3f6fb; text-align: left; font-weight: 600; color: var(--ink); }
td, th { padding: 9px 14px; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: 0; }
.box {
  background: var(--accsoft);
  border-left: 3px solid var(--acc);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  font-size: 15px;
}
mark {
  --mc: #fcc419;
  background: color-mix(in srgb, var(--mc) 42%, transparent);
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--mc) 28%, transparent);
  cursor: pointer;
}
mark:hover { background: color-mix(in srgb, var(--mc) 62%, transparent); }
mark.pulse {
  animation: pl 1.5s ease;
}
@keyframes pl {
  0%, 65% { outline: 3px solid var(--acc); outline-offset: 3px; }
  100% { outline: 3px solid transparent; outline-offset: 3px; }
}
body[data-tool="hl"] main { cursor: text; }

/* ── Questões ── */
.q { position: relative; }
.qh {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font: 600 13px var(--sans);
  color: var(--pri2);
}
.star { color: var(--acc); font-size: 15px; cursor: pointer; }
.qh .st { margin-left: auto; font-size: 12px; padding: 3px 11px; border-radius: 99px; }
.st.ok { background: var(--oksoft); color: var(--ok); }
.st.no { background: var(--badsoft); color: var(--bad); }
.q p {
  margin: 0 0 16px;
  font: 400 16px/1.8 var(--sans);
  color: var(--ink);
  max-width: 80ch;
  white-space: pre-line;
}
.o span { white-space: pre-line; }
.o, .option-btn {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 11px 14px;
  margin-bottom: 8px;
  font: 400 14.5px/1.6 var(--sans);
  color: var(--ink2);
  transition: .15s;
}
.o:hover, .option-btn:hover { border-color: #b9c7de; background: #f8fafd; }
.o b, .option-letter {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1.5px solid #c6d2e6;
  font: 600 12.5px var(--sans);
  color: var(--pri2);
}
.o.ok, .option-btn.correct { background: var(--oksoft); border-color: #8fd3b7; }
.o.ok b, .option-btn.correct .option-letter { background: var(--ok); border-color: var(--ok); color: #fff; }
.o.no, .option-btn.wrong { background: var(--badsoft); border-color: #eeaaa6; }
.o.no b, .option-btn.wrong .option-letter { background: var(--bad); border-color: var(--bad); color: #fff; }
.res, .explanation {
  display: none;
  margin-top: 12px;
  padding: 14px 18px;
  background: #f3f7fd;
  border-left: 3px solid var(--pri2);
  border-radius: 0 12px 12px 0;
  font-size: 14.5px;
}
.res.on, .explanation.visible { display: block; }
.acts { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 12px; }

/* ── Marcações e Flashcards ── */
.seg {
  display: flex;
  background: #e9eef6;
  border-radius: 12px;
  padding: 3px;
  gap: 2px;
}
.seg button {
  display: flex;
  gap: 7px;
  align-items: center;
  border: 0;
  background: none;
  padding: 7px 13px;
  border-radius: 9px;
  font: 500 13px var(--sans);
  color: var(--mut);
}
.seg button.on {
  background: #fff;
  color: var(--pri);
  box-shadow: 0 1px 4px rgba(15,44,82,.16);
  font-weight: 600;
}
.cn {
  background: #d9e2f0;
  border-radius: 99px;
  font-size: 11px;
  padding: 1px 7px;
}
.seg .on .cn { background: var(--accsoft); color: var(--acc); }
.hi {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 16px 18px;
  margin-bottom: 10px;
  box-shadow: var(--sh);
}
.hi:before {
  content: "";
  flex: none;
  width: 4px;
  border-radius: 4px;
  background: var(--mc);
}
.hi .tx { font: 400 15px/1.7 var(--sans); color: var(--ink); }
.hi .tx span {
  background: color-mix(in srgb, var(--mc) 42%, transparent);
  border-radius: 3px;
  padding: 0 3px;
}
.mt { font: 12.5px var(--sans); color: var(--mut); margin: 6px 0 10px; }
.ac { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  font: 600 11px var(--sans);
  padding: 2px 9px;
  border-radius: 99px;
  background: #eaf0fa;
  color: var(--pri2);
}
.pill.ok { background: var(--oksoft); color: var(--ok); }
.pill.bad { background: var(--badsoft); color: var(--bad); }
.fcs { max-width: 700px; margin: 8px auto; text-align: center; }
.fcard {
  min-height: 290px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 22px 54px rgba(15,44,82,.11);
  padding: 38px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  font: 400 18.5px/1.8 var(--sans);
  color: var(--ink);
  margin: 12px 0 20px;
}
.gap {
  display: inline-block;
  border-bottom: 2.5px solid var(--acc);
  background: var(--accsoft);
  height: 1.15em;
  vertical-align: text-bottom;
  margin: 0 3px;
  border-radius: 3px 3px 0 0;
}
mark.rv {
  background: color-mix(in srgb, var(--ok) 20%, transparent);
  color: var(--ok);
  font-weight: 600;
  border-radius: 4px;
  padding: 0 4px;
  box-shadow: none;
  cursor: default;
}
.fsrc { font: 12.5px var(--sans); color: var(--mut); }
.ans {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  color: var(--ok);
  font-weight: 600;
}
.acts.c { justify-content: center; gap: 10px; }

/* ── Mapa mental (Estilo Caderno Orgânico) ── */
.mmv {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--sh);
  height: 74vh;
  overflow: auto;
  cursor: grab;
  position: relative;
}
.mmv:active { cursor: grabbing; }
.sc { margin: 0 auto; }
.dd {
  transform-origin: 0 0;
  position: relative;
  width: 1240px;
  background-color: #fffefc;
  background-image: linear-gradient(#e3e8ee 1px, transparent 1px), linear-gradient(90deg, #e3e8ee 1px, transparent 1px);
  background-size: 26px 26px;
  display: grid;
  grid-template-columns: minmax(0,1fr) 370px minmax(0,1fr);
  grid-template-areas: "tl t tr" "l c r" "bl b br";
  gap: 96px 84px;
  padding: 78px 56px;
  font-family: 'Patrick Hand', 'Segoe Print', 'Bradley Hand', 'Comic Sans MS', cursive;
  color: #2b2b2b;
}
.dd svg.ar {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
.dd .rt {
  grid-area: c;
  align-self: center;
  justify-self: center;
  position: relative;
  z-index: 2;
  isolation: isolate;
  text-align: center;
  padding: 42px 60px;
  font: 400 42px/1.08 'Patrick Hand', cursive;
  -webkit-text-stroke: .8px #2b2b2b;
  width: max-content;
  max-width: 560px;
}
.dd .rt:before {
  content: "";
  position: absolute;
  inset: 0;
  background: #cdeeaa;
  border: 5px solid #2b2b2b;
  border-radius: 50% 46% 52% 48%/56% 50% 48% 52%;
  filter: url(#wob);
  z-index: -1;
}
.dd .cell {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 50px;
  align-self: start;
}
.dd .bx {
  position: relative;
  isolation: isolate;
  padding: 36px 20px 16px;
  font-size: 21px;
  line-height: 1.22;
}
.dd .bx:before, .dd .nt:before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--bg);
  border-radius: 22px;
  filter: url(#wob2);
  z-index: -1;
}
.dd .hd {
  position: absolute;
  top: -17px;
  left: 16px;
  background: var(--hd);
  padding: 2px 16px;
  border-radius: 12px;
  font: 400 27px/1.2 'Patrick Hand', cursive;
  -webkit-text-stroke: .5px #2b2b2b;
  transform: rotate(-1.5deg);
  box-shadow: 0 2px 0 rgba(0,0,0,.12);
}
.dd .bx ul { margin: 0; padding: 0; list-style: none; }
.dd .bx li { position: relative; padding-left: 20px; margin: 4px 0; }
.dd .bx li:before {
  content: "✦";
  position: absolute;
  left: 1px;
  top: 3px;
  font-size: 15px;
  color: var(--hd);
  filter: brightness(.85);
}
.dd .nt {
  position: relative;
  isolation: isolate;
  align-self: center;
  max-width: 92%;
  padding: 18px 26px;
  font-size: 20px;
  line-height: 1.2;
  text-align: center;
}
.dd .nt:before {
  border-radius: 50%/60%;
  background: color-mix(in srgb, var(--hd) 45%, #fff);
}
.dd.abs { display: block; padding: 0; }
.dd.abs .cell { position: absolute; width: 295px; }
.dd.abs .rt { position: absolute; transform: translate(-50%,-50%); width: max-content; }
.dd .rtx { display: block; outline: none; }
.dd li { min-height: 1.2em; }
.dd.edit [contenteditable] { outline: none; cursor: text; border-radius: 6px; }
.dd.edit [contenteditable]:hover { background: rgba(255,255,255,.55); }
.dd.edit [contenteditable]:focus { background: #fff; box-shadow: 0 0 0 2px var(--acc); }
.dd .grip, .dd .mc, .dd .nd { display: none; }
.dd.edit .grip {
  display: grid;
  position: absolute;
  top: -16px;
  right: -16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #2b2b2b;
  color: #fff;
  place-items: center;
  cursor: grab;
  z-index: 6;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
  touch-action: none;
}
.dd.edit .grip svg { width: 17px; height: 17px; }
.dd.edit .rt .grip { top: -2px; right: -2px; }
.dd.edit .bx { cursor: grab; }
.dd.edit .mc { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.dd .mc button {
  border: 1.5px dashed #2b2b2b;
  background: rgba(255,255,255,.65);
  border-radius: 10px;
  padding: 2px 10px;
  font: 700 15px 'Patrick Hand', cursive;
  cursor: pointer;
  color: #2b2b2b;
}
.dd .mc button.dg { color: #c53a32; border-color: #c53a32; }
.dd.edit .nd {
  display: block;
  position: absolute;
  top: -6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 0;
  background: #2b2b2b;
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  z-index: 6;
}
#mz .eo { display: none; }
body.me #mz .eo { display: inline-flex; }
.mhint { display: none; font: 13.5px/1.5 var(--sans); color: var(--mut); margin: -6px 0 14px; }
body.me .mhint { display: block; }
#mh { position: fixed; left: -30000px; top: 0; visibility: hidden; pointer-events: none; }

/* ── Desenho, Canvas e Lousa ── */
details.t, .q, .rb, .board { position: relative; }
.dw {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.dm .dw { pointer-events: auto; touch-action: none; cursor: crosshair; }
.pl .dw { pointer-events: auto; touch-action: none; cursor: copy; }
body[data-tool="tx"].pl .dw { cursor: text; }

.board {
  position: relative;
  height: 480px;
  resize: vertical;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff linear-gradient(#d9e1ee 1px, transparent 1px) 0 0/100% 28px;
}
.board.nl { background: #fff; }

.fonte { font: 12.5px/1.4 var(--sans); color: var(--mut); margin: -2px 0 10px; }
.dica {
  display: none;
  margin-top: 12px;
  padding: 12px 16px;
  background: #fffbea;
  border-left: 3px solid #f5b800;
  border-radius: 0 12px 12px 0;
  font: 14.5px/1.55 var(--sans);
  color: #6b5200;
}
.dica.on { display: block; }

.rb { position: relative; }
.rb h3 { font: 600 19px/1.35 var(--sans); color: var(--ink); margin: 0 0 10px; }
.rb h4 { font: 600 15px var(--sans); color: var(--pri2); margin: 20px 0 6px; }
.rb p { margin: 8px 0; }
.rb figure { margin: 14px 0; }
.rb img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.fml {
  background: var(--accsoft);
  border-left: 3px solid var(--acc);
  border-radius: 0 10px 10px 0;
  padding: 10px 16px;
  font: 500 15px/1.65 var(--sans);
  margin: 8px 0;
}
.rb table { width: 100%; margin: 10px 0; }
.rb ul ul { margin-top: 4px; }

/* Anotações Flutuantes e Carimbos */
.al {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 5;
}
.an {
  position: absolute;
  pointer-events: auto;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  font-family: var(--sans);
}
.an.sel {
  outline: 2px dashed var(--acc);
  outline-offset: 4px;
  border-radius: 8px;
}
.an.tx .tt {
  font: 500 18px/1.35 var(--sans);
  background: rgba(255,255,255,.86);
  border-radius: 8px;
  padding: 4px 10px;
  min-width: 60px;
  max-width: min(60vw, 520px);
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 1px 8px rgba(15,44,82,.16);
}
.an.tx.ed { cursor: text; }
.an.tx.ed .tt {
  outline: 2px solid var(--acc);
  user-select: text;
  -webkit-user-select: text;
  background: #fff;
}
.an.st {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 15px 6px 7px;
  border-radius: 13px;
  background: color-mix(in srgb, var(--c) 13%, #fff);
  border: 2px solid var(--c);
  color: var(--c);
  box-shadow: 0 5px 14px rgba(15,44,82,.24);
  transform-origin: 0 0;
}
.an.st .ico {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--c);
  color: #fff;
  display: grid;
  place-items: center;
  flex: none;
}
.an.st .ico svg { width: 21px; height: 21px; }
.an.st b {
  font: 800 14px/1 var(--sans);
  letter-spacing: .7px;
  text-transform: uppercase;
  white-space: nowrap;
}
.an .ctl {
  display: none;
  position: absolute;
  top: -36px;
  right: 0;
  background: var(--ink);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  z-index: 6;
  font-size: 0;
}
.an.top .ctl { top: calc(100% + 8px); }
.an:hover .ctl, .an.sel .ctl { display: flex; }
.an .ctl button {
  border: 0;
  background: none;
  color: #fff;
  min-width: 28px;
  height: 26px;
  border-radius: 7px;
  font: 700 15px/1 var(--sans);
  padding: 0 6px;
}
.an .ctl button:hover { background: rgba(255,255,255,.2); }
.sb {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 2px solid transparent;
  background: color-mix(in srgb, var(--c) 14%, #fff);
  color: var(--c);
  display: grid;
  place-items: center;
  padding: 0;
}
.sb.on { border-color: var(--c); box-shadow: 0 0 0 2px #fff inset; }
.sb svg { width: 19px; height: 19px; }

/* ── Dock Toolbar (#tb) ── */
#tb {
  width: max-content;
  position: fixed;
  bottom: 18px;
  left: calc(50% + 136px);
  transform: translateX(-50%);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: calc(100vw - 24px);
  padding: 8px 10px;
  background: rgba(255,255,255,.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(15,44,82,.12);
  border-radius: 18px;
  box-shadow: 0 14px 44px rgba(15,44,82,.24);
}
#tb[hidden], #pop[hidden] { display: none; }
.sep { width: 1px; height: 24px; background: var(--line); }
.sw {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #fff;
  outline: 1px solid #cfd8e6;
  padding: 0;
}
.sw.on { outline: 2px solid var(--pri); }
#tb select {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 6px 8px;
  font: 500 12.5px var(--sans);
  background: #fff;
  color: var(--ink2);
}
#cl { display: none; gap: 6px; }
body[data-tool="hl"] #cl, body[data-tool="pen"] #cl, body[data-tool="tx"] #cl { display: flex; }
#sp { display: none; gap: 5px; }
body[data-tool="st"] #sp { display: flex; }
.ft { display: none; }
body[data-tool="tx"] .ft { display: inline-block; }
#modes button span { display: none; }
#modes button.on span { display: inline; }
.fw, .fs, .sp { display: none; }
body[data-tool="pen"] .fw, body[data-tool="e"] .fw, body[data-tool="pen"] .fs { display: inline-block; }

/* ── Popover de Seleção (#pop) ── */
#pop {
  position: fixed;
  z-index: 40;
  display: flex;
  gap: 2px;
  align-items: center;
  background: var(--ink);
  padding: 5px;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0,0,0,.35);
}
#pop button {
  background: none;
  border: 0;
  color: #fff;
  padding: 7px 10px;
  border-radius: 8px;
  font: 500 13px var(--sans);
  display: flex;
  gap: 6px;
  align-items: center;
}
#pop button:hover { background: rgba(255,255,255,.15); }
#pop button:disabled { opacity: .6; }
#pop .dot {
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.7);
  margin: 0 3px;
}
#pop .ps { width: 1px; height: 20px; background: rgba(255,255,255,.25); margin: 0 4px; }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 96px;
  left: 50%;
  transform: translate(-50%, 10px);
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 12px;
  font: 500 13.5px var(--sans);
  opacity: 0;
  pointer-events: none;
  transition: .25s;
  z-index: 50;
}
#toast.on { opacity: 1; transform: translate(-50%, 0); }

/* ── Responsividade ── */
@media(max-width: 860px) {
  .app { display: block; }
  aside { position: static; height: auto; padding: 16px; gap: 14px; }
  nav { flex-direction: row; overflow: auto; }
  nav button { white-space: nowrap; }
  main { padding: 26px 16px 150px; }
  #tb { left: 50%; }
  .ph h2 { font-size: 27px; }
  .fcard { padding: 26px 22px; font-size: 18px; }
}

@media(prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}