/* Fala Gringo — design tokens and components.
   Palette derives from the Brazilian flag already used by the favicon and
   theme-color: green #009c3b, yellow #ffdf00, deep blue #002776. System fonts
   only, so the app makes zero network requests and works offline.
   Signature: the Calçadão de Copacabana wave (Burle Marx's boardwalk pavement)
   as an inline-SVG band under the header and, faintly, in the progress track. */

:root {
  /* Jersey lettering: heavy condensed italic caps, still system fonts only. */
  --display: "Avenir Next Condensed", "Futura", "Trebuchet MS", system-ui, sans-serif;

  /* Calçadão wave tiles (72x12, two full periods, tileable). */
  --calcadao: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%231a1a17' stroke-width='4'/%3E%3C/svg%3E");
  --calcadao-faint: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%231a1a17' stroke-width='4' stroke-opacity='.28'/%3E%3C/svg%3E");

  --bg: #f6f0e2;
  --bg-topbar: #ede5cf;
  --surface: #ffffff;
  --surface-2: #f5f3ed;
  --surface-3: #ebe8de;
  --border: #e4dfd3;
  --border-strong: #cec6b3;

  --text: #1a1a17;
  --text-2: #59564e;
  --text-3: #8a867a;

  --green: #009c3b;
  --green-ink: #04702e;
  --green-soft: #e2f6e8;
  --yellow: #ffdf00;
  --yellow-ink: #7a5c00;
  --yellow-soft: #fff9d9;
  --blue: #002776;
  --blue-ink: #002776;
  --blue-soft: #e8edf8;
  --red: #b3261e;
  --red-ink: #8c1d17;
  --red-soft: #fdecea;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(24, 22, 16, .05), 0 4px 14px rgba(24, 22, 16, .04);

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --calcadao: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%23f0eee8' stroke-width='4'/%3E%3C/svg%3E");
    --calcadao-faint: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%23f0eee8' stroke-width='4' stroke-opacity='.25'/%3E%3C/svg%3E");

    --bg: #131412;
    --bg-topbar: #0d0e0c;
    --surface: #1c1e1b;
    --surface-2: #232520;
    --surface-3: #2d302b;
    --border: #32352f;
    --border-strong: #474b43;

    --text: #f0eee8;
    --text-2: #b3afa4;
    --text-3: #857f74;

    --green: #2ec25f;
    --green-ink: #7fe0a0;
    --green-soft: #16301f;
    --yellow: #ffdf00;
    --yellow-ink: #ffdf00;
    --yellow-soft: #302b0f;
    --blue: #7ea2e8;
    --blue-ink: #a8c2f0;
    --blue-soft: #1a2233;
    --red: #f0665c;
    --red-ink: #ff9a92;
    --red-soft: #331917;

    --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 4px 16px rgba(0, 0, 0, .25);
  }
}

:root[data-theme="dark"] {
  --calcadao: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%23f0eee8' stroke-width='4'/%3E%3C/svg%3E");
  --calcadao-faint: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='12' viewBox='0 0 72 12'%3E%3Cpath d='M0 6Q9 1 18 6T36 6T54 6T72 6' fill='none' stroke='%23f0eee8' stroke-width='4' stroke-opacity='.25'/%3E%3C/svg%3E");

  --bg: #131412;
  --bg-topbar: #0d0e0c;
  --surface: #1c1e1b;
  --surface-2: #232520;
  --surface-3: #2d302b;
  --border: #32352f;
  --border-strong: #474b43;

  --text: #f0eee8;
  --text-2: #b3afa4;
  --text-3: #857f74;

  --green: #2ec25f;
  --green-ink: #7fe0a0;
  --green-soft: #16301f;
  --yellow: #ffdf00;
  --yellow-ink: #ffdf00;
  --yellow-soft: #302b0f;
  --blue: #7ea2e8;
  --blue-ink: #a8c2f0;
  --blue-soft: #1a2233;
  --red: #f0665c;
  --red-ink: #ff9a92;
  --red-soft: #331917;

  --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 4px 16px rgba(0, 0, 0, .25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  /* Sticky footer: <main> grows, so the footer sits at the viewport bottom
     on short pages and below the content on long ones. */
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

button, input { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; }

/* ---------- top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-topbar) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
}
/* The calçadão: a Copacabana-boardwalk wave band closes the header on every
   screen — the app's one piece of Rio scenery, doing the border's job. */
.topbar::after {
  content: "";
  display: block;
  height: 9px;
  background-image: var(--calcadao);
  background-repeat: repeat-x;
  background-size: auto 9px;
}

.topbar-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: .7rem 1rem .55rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--display);
  font-weight: 800;
  font-style: italic;
  font-size: 1.35rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-right: auto;
}

/* Inline SVG Brazilian flag; fixed flag colors in both themes. */
.brand-flag {
  width: 27px;
  height: 19px;
  display: block;
  flex: none;
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  flex: none;
  transition: border-color .15s, color .15s, transform .1s;
}
.icon-btn:hover { border-color: var(--border-strong); color: var(--text); }
.icon-btn:active { transform: scale(.92); }
.icon-btn svg { width: 17px; height: 17px; }

/* sync button status: off = dimmed + amber dot (attention), error = pulsing
   red dot (alarm), healthy = plain. */
#syncBtn { position: relative; }
#syncBtn.sync-off { opacity: .6; }
#syncBtn.sync-off::after,
#syncBtn.sync-error::after {
  content: "";
  position: absolute;
  top: 2px; right: 2px;
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--bg-topbar);
}
#syncBtn.sync-off::after { background: var(--yellow); }
#syncBtn.sync-error::after {
  background: var(--red);
  animation: sync-pulse 1.6s ease-in-out infinite;
}
@keyframes sync-pulse {
  50% { transform: scale(1.45); opacity: .55; }
}

.mode-btn {
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  padding: .34rem .8rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: all .15s;
}
.mode-btn[aria-pressed="true"] {
  background: var(--yellow-soft);
  border-color: var(--yellow);
  color: var(--yellow-ink);
}
.mode-btn:active { transform: scale(.95); }

/* ---------- tabs ---------- */

.tabs {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1rem .5rem;
  display: flex;
  gap: .3rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
/* On phones the 13 tabs scroll horizontally. On wider screens show them all:
   one line whenever the viewport fits them, wrapping only when it must. */
@media (min-width: 640px) {
  .tabs {
    flex-wrap: wrap;
    justify-content: center;
    max-width: none;
    width: fit-content;
    overflow-x: visible;
  }
}

/* Idle chips: quiet off-white pills (a touch of the page cream mixed in).
   The active tab wears the flag: green field, yellow lettering, and the
   counter as a blue-on-yellow pill — the flag's own layering. */
.tab {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 82%, var(--bg));
  color: var(--text-2);
  border-radius: 999px;
  padding: .3rem .58rem;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: .38rem;
  transition: all .15s;
}
.tab:hover { border-color: var(--border-strong); color: var(--text); }
.tab[aria-selected="true"] {
  background: #009c3b;
  border-color: #009c3b;
  color: #ffdf00;
}
.tab[aria-selected="true"] .pct {
  background: #ffdf00;
  color: #002776;
  padding: 0 .34em;
  border-radius: 999px;
}
.tab .pct {
  font-size: .68rem;
  font-variant-numeric: tabular-nums;
  opacity: .7;
  font-weight: 500;
}
.tab.daily {
  border-color: var(--yellow);
  color: var(--yellow-ink);
  background: var(--yellow-soft);
}
.tab.daily[aria-selected="true"] {
  background: var(--yellow);
  border-color: var(--yellow);
  color: #4a3800;
}

/* ---------- layout ---------- */

main { max-width: 880px; width: 100%; margin: 0 auto; padding: 1.1rem 1rem 4rem; flex: 1; }
.narrow { max-width: 600px; margin: 0 auto; }

.view-head { text-align: center; margin-bottom: 1rem; }
/* Topic titles wear the same jersey lettering as the wordmark. */
.view-head h1 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.6rem;
  letter-spacing: .045em;
  margin-bottom: .15rem;
}
.view-head p { color: var(--text-2); font-size: .88rem; }
.view-head .reset-link {
  background: none; border: none; padding: 0;
  color: var(--text-3); font: inherit; font-size: .88rem;
  text-decoration: underline; cursor: pointer;
}
.view-head .reset-link:hover { color: var(--red); }

/* ---------- filter chips ---------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  justify-content: center;
  margin-bottom: .9rem;
}
.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-3);
  border-radius: 999px;
  padding: .26rem .68rem;
  font-size: .74rem;
  font-weight: 600;
  transition: all .14s;
}
.chip:hover { border-color: var(--border-strong); }
.chip.active {
  background: var(--blue-soft);
  border-color: var(--blue);
  color: var(--blue-ink);
}
/* the Foco chip goes yellow, not blue: it changes WHAT is drilled, not which group */
.chip.focus.active {
  background: var(--yellow-soft);
  border-color: var(--yellow);
  color: var(--yellow-ink);
}

/* ---------- stats + progress ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .5rem;
  margin-bottom: .7rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .5rem;
  text-align: center;
}
.stat-num {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.stat-num.green { color: var(--green-ink); }
.stat-num.red { color: var(--red-ink); }
.stat-lbl {
  font-size: .64rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-3);
  font-weight: 600;
}

.progress-row { display: flex; align-items: center; gap: .6rem; margin-bottom: 1.1rem; }
/* The track is the calçadão, faintly — filling the bar walks the boardwalk. */
.progress-bg {
  flex: 1;
  height: 9px;
  background-color: var(--surface-3);
  background-image: var(--calcadao-faint);
  background-repeat: repeat-x;
  background-position: left center;
  background-size: auto 9px;
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--yellow));
  border-radius: 999px;
  transition: width .3s ease;
}
.progress-pct {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  min-width: 2.6em;
  text-align: right;
}

/* ---------- quiz card ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.2rem 1.2rem;
  scroll-margin-top: .75rem;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  flex-wrap: wrap;
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--text-3);
  margin-bottom: .85rem;
}
.card-hint {
  font-family: var(--mono);
  text-transform: none;
  letter-spacing: 0;
  background: var(--yellow-soft);
  color: var(--yellow-ink);
  border: 1px solid var(--yellow);
  border-radius: 999px;
  padding: .05rem .5rem;
  font-size: .72rem;
}

.card-prompt {
  font-size: 1.42rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: -.015em;
  line-height: 1.3;
}
.card-prompt em { color: var(--green-ink); font-style: normal; font-weight: 700; }
.card-prompt .blank {
  display: inline-block;
  min-width: 3.2em;
  border-bottom: 2px dashed var(--border-strong);
  color: transparent;
}
.card-sub {
  text-align: center;
  color: var(--text-3);
  font-size: .78rem;
  margin-top: .45rem;
}
.card-target {
  text-align: center;
  font-family: var(--mono);
  font-size: .95rem;
  color: var(--text-2);
  margin-top: .55rem;
}

.input-row { display: flex; gap: .5rem; margin-top: 1.1rem; }
.answer-input {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 1rem;
  padding: .68rem .8rem;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  transition: border-color .15s, background .15s;
}
.answer-input::placeholder { color: var(--text-3); }
.answer-input:focus { outline: none; border-color: var(--blue); }
.answer-input.correct { border-color: var(--green); background: var(--green-soft); }
.answer-input.wrong { border-color: var(--red); background: var(--red-soft); }
.answer-input:disabled { opacity: 1; }

.check-btn {
  flex: none;
  width: 3rem;
  border: 1.5px solid var(--blue);
  background: var(--blue);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  transition: all .15s;
}
:root[data-theme="dark"] .check-btn { color: #0d1220; }
.check-btn:active { transform: scale(.95); }
.check-btn.go-green { background: var(--green); border-color: var(--green); }
.check-btn.go-red { background: var(--red); border-color: var(--red); }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.shake { animation: shake .32s; }

/* ---------- feedback + reveal ---------- */

.feedback {
  margin-top: .8rem;
  font-size: .9rem;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: .45rem;
  flex-wrap: wrap;
}
.feedback.ok, .feedback.err { display: flex; }
.feedback.ok { color: var(--green-ink); }
.feedback.err { color: var(--red-ink); }
.feedback strong { font-family: var(--mono); }

.pron-tag {
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 500;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  border-radius: 999px;
  padding: .06rem .5rem;
}

.speak-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  width: 28px; height: 28px;
  display: inline-grid; place-items: center;
  flex: none;
  transition: all .15s;
}
.speak-btn svg { width: 14px; height: 14px; }
.speak-btn:hover { border-color: var(--green); color: var(--green-ink); }
.speak-btn:active { transform: scale(.9); }
.speak-btn.playing { background: var(--green-soft); border-color: var(--green); color: var(--green-ink); }

/* ---------- mic mode ---------- */

/* the mic chip goes green, not blue: it changes HOW you answer, not which group */
.chip.mic.active {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-ink);
}
.mic-status {
  margin-top: .6rem;
  min-height: 1.3rem;
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-3);
}
.mic-dot {
  flex: none;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--red);
  animation: sync-pulse 1.4s ease-in-out infinite;
}
.mic-resume {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  padding: .26rem .68rem;
  font-size: .78rem;
  font-weight: 600;
  text-align: left;
}
.mic-resume:hover { border-color: var(--green); color: var(--green-ink); }

.example, .tip, .note {
  margin-top: .7rem;
  font-size: .86rem;
  border-radius: var(--radius-sm);
  padding: .6rem .75rem;
  border: 1px solid var(--border);
}
.example { background: var(--surface-2); color: var(--text); font-style: italic; }
.example .en { display: block; font-style: normal; color: var(--text-3); font-size: .8rem; margin-top: .2rem; }
.tip  { background: var(--blue-soft); border-color: color-mix(in srgb, var(--blue) 30%, transparent); color: var(--text); font-style: normal; }
.note { background: var(--yellow-soft); border-color: color-mix(in srgb, var(--yellow) 45%, transparent); color: var(--text); font-style: normal; }

.conj-table-wrapper {
  margin-top: .8rem;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity .3s ease, max-height .3s ease;
}
.conj-table-wrapper.visible { opacity: 1; max-height: 420px; }
.conj-table-label {
  font-size: .66rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
  font-weight: 700;
  margin-bottom: .3rem;
}
.conj-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.conj-table td { padding: .3rem .5rem; border-bottom: 1px solid var(--border); }
.conj-table tr:last-child td { border-bottom: none; }
.conj-table .conj-pronoun { color: var(--text-3); width: 4.6rem; }
.conj-table .conj-form { font-family: var(--mono); font-weight: 600; }
.conj-table .conj-pron { font-family: var(--mono); font-size: .76rem; color: var(--text-3); text-align: right; }
.conj-table tr.is-current td { background: var(--green-soft); }

/* ---------- controls ---------- */

.controls {
  display: flex;
  gap: .5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: .9rem;
}
.btn {
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  padding: .42rem .95rem;
  font-size: .8rem;
  font-weight: 600;
  transition: all .15s;
}
.btn:hover { border-color: var(--border-strong); color: var(--text); }
.btn:active { transform: scale(.96); }
.btn.primary { background: var(--green); border-color: var(--green); color: #fff; }
:root[data-theme="dark"] .btn.primary { color: #08170d; }
.btn.active { background: var(--blue-soft); border-color: var(--blue); color: var(--blue-ink); }

/* ---------- done screen ---------- */

.done-screen { text-align: center; }
.trophy { font-size: 2.8rem; line-height: 1; margin-bottom: .4rem; }
.done-screen h2 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .045em;
  font-size: 1.5rem;
  margin-bottom: .2rem;
}
.done-screen p { color: var(--text-2); font-size: .9rem; }
.result-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem;
  margin: 1rem 0;
}
.result-stat {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .6rem;
}
.result-stat-num { font-family: var(--mono); font-size: 1.3rem; font-weight: 600; }
.result-stat-num.green { color: var(--green-ink); }
.result-stat-num.red { color: var(--red-ink); }
.result-stat-num.accent { color: var(--yellow-ink); }
.result-stat-lbl { font-size: .64rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); font-weight: 600; }

.empty {
  text-align: center;
  color: var(--text-2);
  padding: 2rem 1rem;
}

/* ---------- daily ---------- */

.daily-dots { display: flex; gap: .35rem; justify-content: center; margin-bottom: 1rem; }
.daily-dot {
  width: 26px; height: 26px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  display: grid; place-items: center;
  font-size: .7rem;
  font-family: var(--mono);
  color: var(--text-3);
}
.daily-dot.current { border-color: var(--blue); color: var(--blue-ink); }
.daily-dot.done { background: var(--green); border-color: var(--green); color: #fff; }
.daily-dot.done-multi { background: var(--yellow); border-color: var(--yellow); color: #4a3800; }
.daily-dot.done-fail { background: var(--red); border-color: var(--red); color: #fff; }

.share-box {
  font-family: var(--mono);
  font-size: .82rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .7rem;
  white-space: pre-wrap;
  text-align: left;
  margin: .9rem 0;
}

.daily-result-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  padding: .22rem 0;
  border-bottom: 1px solid var(--border);
}
.daily-result-row:last-child { border-bottom: none; }
.daily-result-idx { font-family: var(--mono); color: var(--text-3); min-width: 1.3rem; }
.daily-result-verb { font-family: var(--mono); flex: 1; text-align: left; }

.toast {
  position: fixed;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--text);
  color: var(--bg);
  font-size: .8rem;
  font-weight: 600;
  padding: .55rem 1.1rem;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.fireworks-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
}

/* ---------- browse view ---------- */

.cat-head {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--text-3);
  margin: 1.4rem 0 .5rem;
}
.cat-dot { width: 9px; height: 9px; border-radius: 999px; flex: none; }

.verb-row {
  display: grid;
  grid-template-columns: 2.1rem 1.85rem 1fr 1.85rem;
  align-items: center;
  gap: .4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .5rem .6rem;
  margin-bottom: .35rem;
}
.shuffled .verb-row { border-left: 4px solid var(--row-color, var(--border)); }
.verb-num { font-family: var(--mono); font-size: .76rem; color: var(--text-3); font-variant-numeric: tabular-nums; }
.verb-text { display: flex; flex-wrap: wrap; align-items: baseline; gap: .1rem .6rem; min-width: 0; }
.verb-pt, .verb-en { border-radius: 5px; padding: 0 .1rem; cursor: pointer; user-select: none; }
.verb-pt { font-weight: 600; }
.verb-en { color: var(--text-2); font-size: .86rem; }
.verb-pt .tag { color: var(--text-3); font-weight: 400; font-size: .74rem; }

.verb-pt.hidden, .verb-en.hidden {
  color: transparent;
  background: var(--surface-3);
  border: 1px dashed var(--border-strong);
  position: relative;
}
.verb-pt.hidden::after, .verb-en.hidden::after {
  content: "tap to reveal";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: .6rem;
  letter-spacing: .04em;
  color: var(--text-3);
  font-weight: 500;
  font-style: normal;
}

.conj-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-3);
  border-radius: 999px;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  transition: all .15s;
}
.conj-btn svg { width: 13px; height: 13px; transition: transform .2s; }
.verb-row.expanded .conj-btn svg { transform: rotate(180deg); }
.conj-btn:hover { border-color: var(--border-strong); color: var(--text); }

.conjugation-panel { grid-column: 1 / -1; display: none; padding: .6rem .2rem .2rem; }
.verb-row.expanded .conjugation-panel { display: block; }
.conj-body { display: grid; gap: .8rem; }
@media (min-width: 620px) { .conj-body { grid-template-columns: repeat(3, 1fr); } }
.conj-tense { min-width: 0; }
.conj-title {
  font-size: .64rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  font-weight: 700;
  color: var(--green-ink);
  margin-bottom: .25rem;
}
.conj-line { display: flex; gap: .4rem; align-items: baseline; font-size: .8rem; padding: .1rem 0; }
.conj-line .who { color: var(--text-3); font-size: .7rem; min-width: 3.1rem; }
.conj-line .form { font-family: var(--mono); font-weight: 600; cursor: pointer; }
.conj-line .form:hover { color: var(--green-ink); }
.conj-line .gloss { color: var(--text-3); font-size: .72rem; }

footer {
  text-align: center;
  color: var(--text-3);
  font-size: .74rem;
  padding: 2rem 1rem 1rem;
  line-height: 1.7;
}
footer a { color: var(--text-2); }
/* The crossed-out words are European Portuguese — a joke for learners only. */
footer s { text-decoration-color: var(--red); opacity: .8; }
footer .build-info {
  display: block;
  margin-top: .3rem;
  font-family: var(--mono);
  font-size: .68rem;
  opacity: .75;
}

@media (prefers-reduced-motion: reduce) {
  .shake { animation: none; }
  * { transition-duration: .01ms !important; }
}

@media (max-width: 460px) {
  .card-prompt { font-size: 1.24rem; }
  .verb-row { grid-template-columns: 1.8rem 1.7rem 1fr 1.7rem; }
  .verb-text { flex-direction: column; gap: .1rem; }
}