/* ═══════════════════════════════════════════════════════════════════════
   English Now: tema escuro com vidro sutil (claro opcional), mobile primeiro.
   Estrutura em views/apps/english-now.eta, lógica em public/js/english-now.js.
   Cores da identidade do app: azul-céu #38bdf8 → índigo #6366f1.
   ═══════════════════════════════════════════════════════════════════════ */

/* ───────── Tokens ───────── */
:root {
	color-scheme: dark;
	--bg: #070b14;
	--ink: #eaf0fb;
	--ink-2: #aab6cb;
	--ink-3: #8592a9;
	--line: rgb(255 255 255 / .09);
	--line-2: rgb(255 255 255 / .16);
	--fill: rgb(255 255 255 / .04);
	--fill-2: rgb(255 255 255 / .08);
	--glass: linear-gradient(180deg, rgb(255 255 255 / .07), rgb(255 255 255 / .03));
	--solid: #0f1627;
	--shine: inset 0 1px 0 rgb(255 255 255 / .07);
	--shadow: 0 18px 50px -24px rgb(0 0 0 / .8);

	--accent: #38bdf8;
	--accent-2: #6366f1;
	--accent-ink: #7dd3fc;
	--grad: linear-gradient(135deg, #38bdf8, #818cf8);
	--on-grad: #06111f;
	--mic-ink: #a5b4fc;
	--hot: #fb923c;
	--ok: #34d399;
	--warn: #fbbf24;
	--bad: #f87171;

	--radius: 22px;
	--ease: cubic-bezier(.2, .8, .2, 1);
	--font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
	--mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
	--gutter: 1.25rem;
	--dock-h: 64px;
	--dock-offset: calc(var(--dock-h) + 24px + env(safe-area-inset-bottom));
}
@media (min-width: 900px) {
	:root { --gutter: 2rem; --dock-offset: 1.25rem; }
}

:root[data-theme="light"] {
	color-scheme: light;
	--bg: #f3f6fb;
	--ink: #0b1220;
	--ink-2: #404e66;
	--ink-3: #4f5e75;
	--line: rgb(15 23 42 / .1);
	--line-2: rgb(15 23 42 / .18);
	--fill: rgb(15 23 42 / .035);
	--fill-2: rgb(15 23 42 / .07);
	--glass: linear-gradient(180deg, rgb(255 255 255 / .9), rgb(255 255 255 / .62));
	--solid: #ffffff;
	--shine: inset 0 1px 0 rgb(255 255 255 / .9);
	--shadow: 0 18px 44px -26px rgb(30 41 82 / .35);

	--accent: #0ea5e9;
	--accent-ink: #0369a1;
	--grad: linear-gradient(135deg, #0369a1, #4338ca);
	--on-grad: #ffffff;
	--mic-ink: #4338ca;
	--hot: #c2410c;
	--ok: #047857;
	--warn: #a16207;
	--bad: #b91c1c;
}

/* ───────── Base ───────── */
*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }
body {
	margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink);
	font: 400 1rem/1.6 var(--font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; text-align: inherit; }
button:disabled { cursor: default; }
:focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 3px; border-radius: 6px; }
[tabindex="-1"]:focus { outline: none; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }

.wrap { width: min(100% - 2 * var(--gutter), 62rem); margin-inline: auto; }
.i { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mono { font: 500 .8rem/1.2 var(--mono); letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 1rem; top: -4rem; z-index: 200; padding: .6rem 1rem; border-radius: 10px; background: var(--solid); color: var(--ink); border: 1px solid var(--line-2); transition: top .2s; }
.skip:focus { top: 1rem; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ───────── Fundo: aurora suave ───────── */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
	background: radial-gradient(110% 70% at 50% -10%, rgb(56 189 248 / .1), transparent 60%), var(--bg); }
.bg i { position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%; filter: blur(100px); will-change: transform; animation: drift 30s ease-in-out infinite alternate; }
.bg i:nth-child(1) { background: var(--accent); top: -22vmax; left: -12vmax; opacity: .16; }
.bg i:nth-child(2) { background: var(--accent-2); right: -18vmax; top: 22vh; opacity: .13; animation-duration: 38s; animation-delay: -10s; }
:root[data-theme="light"] .bg i { opacity: .12; }
:root[data-theme="light"] .bg i:nth-child(2) { opacity: .09; }
@keyframes drift { to { transform: translate3d(7vmax, 5vmax, 0) scale(1.12); } }

/* ───────── Vidro ───────── */
.card {
	position: relative; border: 1px solid var(--line); border-radius: var(--radius);
	background: var(--glass); box-shadow: var(--shine), var(--shadow);
	-webkit-backdrop-filter: blur(16px) saturate(150%); backdrop-filter: blur(16px) saturate(150%);
}

/* ───────── Botões ───────── */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 44px; padding: .65rem 1.2rem;
	border: 1px solid transparent; border-radius: 999px; font-weight: 600; font-size: .95rem; line-height: 1.1; text-align: center; white-space: nowrap;
	transition: transform .2s var(--ease), background .2s, border-color .2s, filter .2s, box-shadow .2s;
}
.btn:active:not(:disabled) { transform: scale(.97); }
.btn--primary { background: var(--grad); color: var(--on-grad); box-shadow: 0 12px 30px -14px color-mix(in srgb, var(--accent) 80%, transparent); }
.btn--primary:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.07); }
.btn--ghost { background: var(--fill); border-color: var(--line-2); color: var(--ink); }
.btn--ghost:hover:not(:disabled) { background: var(--fill-2); }
.btn--quiet { color: var(--ink-2); padding-inline: .8rem; }
.btn--quiet:hover:not(:disabled) { color: var(--ink); background: var(--fill); }
.btn--sm { min-height: 40px; padding: .5rem .95rem; font-size: .875rem; }
.btn--lg { min-height: 52px; padding: .85rem 1.6rem; font-size: 1rem; }
.btn.is-done { background: color-mix(in srgb, var(--ok) 14%, transparent); border-color: color-mix(in srgb, var(--ok) 40%, transparent); color: var(--ok); box-shadow: none; }
.btn.is-busy { position: relative; overflow: hidden; }

.link { display: inline-flex; align-items: center; gap: .45rem; min-height: 44px; font-size: .92rem; font-weight: 500; color: var(--ink-2); transition: color .2s; }
.link:hover { color: var(--accent-ink); }
.link:disabled { opacity: .7; }

.icon-btn {
	display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; flex: none;
	background: var(--fill); border: 1px solid var(--line); color: var(--ink);
	transition: transform .2s var(--ease), background .2s, border-color .2s, color .2s;
}
.icon-btn .i { width: 20px; height: 20px; }
.icon-btn:hover { background: var(--fill-2); border-color: var(--line-2); }
.icon-btn:active { transform: scale(.94); }
.icon-btn--sm { width: 36px; height: 36px; }
.icon-btn--sm .i { width: 17px; height: 17px; }
.icon-btn--lg { width: 54px; height: 54px; }
.icon-btn--lg .i { width: 24px; height: 24px; }
.icon-btn--ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.icon-btn--ghost:hover { color: var(--ink); }
.icon-btn--mic { background: color-mix(in srgb, var(--accent-2) 16%, transparent); border-color: color-mix(in srgb, var(--accent-2) 36%, transparent); color: var(--mic-ink); }
.icon-btn--mic:hover { background: color-mix(in srgb, var(--accent-2) 28%, transparent); border-color: color-mix(in srgb, var(--accent-2) 55%, transparent); }
.icon-btn.is-speaking, .btn.is-speaking { color: var(--accent-ink); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); animation: ring 1.3s ease-out infinite; }
@keyframes ring { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); } 80%, 100% { box-shadow: 0 0 0 9px transparent; } }

/* ───────── Faixa e cabeçalho ───────── */
.strip { display: flex; align-items: center; justify-content: space-between; min-height: 40px; font-size: .8rem; color: var(--ink-3); }
.strip a { color: inherit; }
.strip a { display: inline-flex; align-items: center; gap: .4rem; min-height: 32px; text-decoration: none; transition: color .2s; }
.strip a:hover { color: var(--ink); }
.strip .i { width: 14px; height: 14px; }
.strip__brand { gap: .35rem; font-weight: 800; letter-spacing: -.02em; color: var(--ink-2); }
.strip__brand b { color: var(--accent-ink); }

.top {
	position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--line);
	background: color-mix(in srgb, var(--bg) 72%, transparent);
	-webkit-backdrop-filter: blur(18px) saturate(160%); backdrop-filter: blur(18px) saturate(160%);
}
.top__in { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: .65rem; min-height: 44px; border-radius: 12px; }
.brand__mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; background: var(--grad); color: var(--on-grad); box-shadow: 0 8px 20px -10px var(--accent); }
.brand__mark .i { width: 18px; height: 18px; }
.brand__name { font-weight: 800; letter-spacing: -.025em; font-size: 1.05rem; white-space: nowrap; }

.tabs { display: none; align-items: center; gap: 2px; padding: 4px; border-radius: 999px; background: var(--fill); border: 1px solid var(--line); }
.tab { display: inline-flex; align-items: center; gap: .45rem; padding: .5rem .9rem; border-radius: 999px; font-size: .9rem; font-weight: 500; color: var(--ink-2); white-space: nowrap; transition: color .2s, background .2s; }
.tab:hover { color: var(--ink); }
.tab[aria-current] { color: var(--ink); background: var(--fill-2); box-shadow: inset 0 0 0 1px var(--line-2); }
.tab[aria-current] .i { color: var(--accent-ink); }
.tab .i { width: 17px; height: 17px; }

.top__end { display: flex; align-items: center; gap: .9rem; }
.metric { display: inline-flex; align-items: center; gap: .3rem; font-size: .88rem; font-weight: 600; color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.metric b { color: var(--ink); font-weight: 700; }
.metric .i { width: 17px; height: 17px; }
.metric--streak .i { color: var(--hot); }
.metric--xp .i { color: var(--accent-ink); }
.metric__unit { font-weight: 500; }
.metric.bump { animation: bump .6s var(--ease); }
@keyframes bump { 35% { transform: scale(1.18); } }
.theme-ic--moon { display: none; }
:root[data-theme="light"] .theme-ic--sun { display: none; }
:root[data-theme="light"] .theme-ic--moon { display: block; }

@media (min-width: 900px) { .tabs { display: flex; } }
@media (max-width: 420px) { .metric__unit { display: none; } .top__end { gap: .7rem; } }

/* ───────── Navegação inferior (celular) ───────── */
.dock {
	position: fixed; z-index: 45; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); height: var(--dock-h);
	display: flex; gap: 2px; padding: 6px; border-radius: 24px; border: 1px solid var(--line-2);
	background: color-mix(in srgb, var(--solid) 78%, transparent);
	-webkit-backdrop-filter: blur(20px) saturate(160%); backdrop-filter: blur(20px) saturate(160%);
	box-shadow: var(--shine), 0 18px 40px -18px rgb(0 0 0 / .7);
}
.dock__btn { flex: 1; min-width: 0; display: grid; place-items: center; align-content: center; gap: 2px; border-radius: 18px; font-size: .68rem; font-weight: 500; color: var(--ink-3); transition: color .2s, background .2s; }
.dock__btn .i { width: 22px; height: 22px; transition: transform .25s var(--ease); }
.dock__btn span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dock__btn[aria-current] { color: var(--ink); background: var(--fill-2); font-weight: 600; }
.dock__btn[aria-current] .i { color: var(--accent-ink); transform: translateY(-1px); }
@media (min-width: 900px) { .dock { display: none; } }

/* ───────── Estrutura das telas ───────── */
.main { padding-bottom: calc(var(--dock-offset) + 3rem); }
@media (min-width: 900px) { .main { padding-bottom: 5rem; } }
.view { display: none; padding-top: 1.5rem; }
.view.active { display: block; animation: view-in .4s var(--ease) both; }
@keyframes view-in { from { opacity: 0; transform: translateY(8px); } }

.head { max-width: 40rem; margin-bottom: 1.75rem; }
.head h1, .home h1 { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.4rem); line-height: 1.12; letter-spacing: -.035em; font-weight: 800; }
.lead { margin-top: .7rem; color: var(--ink-2); font-size: 1.04rem; max-width: 56ch; }
.focus { display: inline-block; margin-top: 1rem; padding: .3rem .8rem; border-radius: 999px; font-size: .82rem; font-weight: 500; color: var(--ink-2); background: var(--fill); border: 1px solid var(--line); }
.note { display: flex; gap: .7rem; align-items: flex-start; margin-top: 1rem; padding: .85rem 1rem; border-radius: 14px; font-size: .88rem; line-height: 1.5; color: var(--ink-2); background: var(--fill); border: 1px solid var(--line); }
.note[hidden] { display: none; }
.note .i { margin-top: .12rem; color: var(--accent-ink); }

/* ───────── Início ───────── */
.home { display: grid; gap: 2.25rem; padding-block: .75rem 0; align-items: center; }
@media (min-width: 900px) { .home { grid-template-columns: 1.1fr 1fr; gap: 4rem; padding-block: 2rem 0; } }
.home h1 { font-size: clamp(2.1rem, 1.3rem + 3.4vw, 3.5rem); line-height: 1.04; letter-spacing: -.045em; margin-top: 1rem; }
.goal { display: inline-flex; align-items: center; gap: .6rem; font-size: .78rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; color: var(--accent-ink); }
.goal__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }

.today { padding: 1.6rem; background: radial-gradient(120% 90% at 100% 0%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 60%), var(--glass); }
@media (min-width: 640px) { .today { padding: 2rem; } }
.label { font: 500 .74rem/1.3 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent-ink); }
.today__title { margin-top: .6rem; font-size: 1.45rem; line-height: 1.22; letter-spacing: -.025em; font-weight: 700; }
.today__desc { margin-top: .6rem; color: var(--ink-2); font-size: .98rem; }
.today .btn--lg { margin-top: 1.5rem; width: 100%; }
@media (min-width: 640px) { .today .btn--lg { width: auto; } }
.progress { margin-top: 1.75rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.progress__row { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: .6rem; font-size: .88rem; font-weight: 500; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.progress__row .mono { font: 600 .88rem/1.2 var(--font); font-variant-numeric: tabular-nums; color: var(--ink); }
.today__links { display: flex; flex-wrap: wrap; gap: .25rem 1.4rem; margin-top: .75rem; margin-bottom: -.5rem; }

.bar { height: 8px; border-radius: 99px; background: var(--fill-2); overflow: hidden; }
.bar--thin { height: 4px; }
.bar > i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--grad); transition: width .7s var(--ease); }

.stats { display: grid; margin: 2.5rem 0 0; border-block: 1px solid var(--line); }
.stats > div { display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: .1rem 1rem; padding: 1rem .25rem; }
.stats > div + div { border-top: 1px solid var(--line); }
.stats dt { grid-column: 1; font-size: .78rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.stats dd { margin: 0; }
.stat__val { grid-column: 2; grid-row: 1; font-size: 1.05rem; font-weight: 700; text-align: right; letter-spacing: -.01em; }
.stat__hint { grid-column: 1 / -1; font-size: .82rem; color: var(--ink-3); }
@media (min-width: 720px) {
	.stats { grid-template-columns: repeat(3, 1fr); }
	.stats > div { display: block; padding: 1.4rem 1.5rem; }
	.stats > div:first-child { padding-left: .25rem; }
	.stats > div + div { border-top: 0; border-left: 1px solid var(--line); }
	.stat__val { display: block; margin: .45rem 0 .2rem; font-size: 1.25rem; text-align: left; }
	.stat__hint { display: block; }
}

.sec-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .25rem 1rem; margin: 3rem 0 1.25rem; }
.sec-head h2 { font-size: 1.35rem; letter-spacing: -.025em; font-weight: 700; }
.sec-head p { font-size: .88rem; color: var(--ink-3); }

.week + .week { margin-top: 1.75rem; }
.week__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: .75rem; padding-inline: .25rem; }
.week__head h3 { font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.week__head span { font: 500 .75rem/1 var(--mono); color: var(--ink-3); }
.week__grid { display: grid; gap: .6rem; }
@media (min-width: 760px) { .week__grid { grid-template-columns: 1fr 1fr; } }

.day {
	display: flex; align-items: center; gap: .9rem; width: 100%; min-height: 64px; padding: .85rem 1rem; border-radius: 18px;
	background: var(--fill); border: 1px solid var(--line);
	transition: transform .25s var(--ease), background .2s, border-color .2s;
}
.day:hover { background: var(--fill-2); border-color: var(--line-2); transform: translateY(-1px); }
.day__num { display: grid; place-items: center; width: 38px; height: 38px; flex: none; border-radius: 50%; background: var(--fill-2); font: 600 .9rem/1 var(--mono); color: var(--ink-2); }
.day__num .i { width: 18px; height: 18px; }
.day__body { flex: 1; min-width: 0; display: grid; gap: .1rem; }
.day__title { font-weight: 600; font-size: .96rem; line-height: 1.3; }
.day__focus { font-size: .82rem; color: var(--ink-3); line-height: 1.35; }
.day__go { color: var(--ink-3); transition: transform .2s var(--ease), color .2s; }
.day:hover .day__go { color: var(--ink); transform: translateX(2px); }
.day.is-current { background: color-mix(in srgb, var(--accent) 9%, var(--fill)); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.day.is-current .day__num { background: var(--grad); color: var(--on-grad); }
.day.is-done .day__num { background: color-mix(in srgb, var(--ok) 16%, transparent); color: var(--ok); }
:root[data-theme="light"] .pill { color: #075985; background: color-mix(in srgb, var(--accent) 11%, #fff); }
.pill { flex: none; padding: .2rem .65rem; border-radius: 999px; font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent-ink); background: color-mix(in srgb, var(--accent) 16%, transparent); }

/* ───────── Fórmulas ───────── */
.acc { display: grid; gap: .6rem; }
.formula { border: 1px solid var(--line); border-radius: 20px; background: var(--fill); transition: background .25s, border-color .25s; }
.formula.is-open { background: var(--glass); border-color: var(--line-2); box-shadow: var(--shine); }
.formula__head { margin: 0; font: inherit; }
.formula__toggle { display: flex; align-items: center; gap: .9rem; width: 100%; min-height: 64px; padding: .9rem 1.1rem; border-radius: 20px; }
.formula__num { display: grid; place-items: center; width: 32px; height: 32px; flex: none; border-radius: 50%; background: var(--fill-2); font: 600 .85rem/1 var(--mono); color: var(--accent-ink); transition: background .25s, color .25s; }
.formula.is-open .formula__num { background: var(--grad); color: var(--on-grad); }
.formula__title { flex: 1; min-width: 0; font-weight: 600; font-size: 1.02rem; line-height: 1.35; }
.formula__chev { color: var(--ink-3); transition: transform .3s var(--ease); }
.formula.is-open .formula__chev { transform: rotate(180deg); }
.formula__panel { display: grid; grid-template-rows: 0fr; visibility: hidden; transition: grid-template-rows .35s var(--ease), visibility 0s .35s; }
.formula.is-open .formula__panel { grid-template-rows: 1fr; visibility: visible; transition-delay: 0s; }
.formula__inner { min-height: 0; overflow: hidden; }
.formula__explain { padding: 0 1.1rem .9rem 1.1rem; color: var(--ink-2); font-size: .96rem; }
.formula__inner .stack { padding: 0 .75rem 1rem; margin-top: 0; }
@media (min-width: 640px) { .formula__explain { padding-left: 4.1rem; } }

/* Linha "frase + ouvir + falar", usada em fórmulas e no desafio do dia */
.stack { display: grid; gap: .6rem; }
.say { display: flex; align-items: center; gap: .9rem; padding: .85rem .95rem; border-radius: 16px; background: var(--fill); border: 1px solid var(--line); transition: background .25s, border-color .25s; }
.formula .say { background: var(--fill); }
.say__mark { display: grid; place-items: center; width: 28px; height: 28px; flex: none; border-radius: 50%; background: var(--fill-2); font: 600 .78rem/1 var(--mono); color: var(--ink-2); }
.say__mark .i { width: 15px; height: 15px; }
.say__text { flex: 1; min-width: 0; }
.say__en { font-weight: 600; font-size: 1rem; line-height: 1.38; }
.say__pt { margin-top: .15rem; font-size: .88rem; color: var(--ink-2); line-height: 1.4; }
.say__actions { display: flex; align-items: center; gap: .45rem; flex: none; }
.say.is-done { background: color-mix(in srgb, var(--ok) 8%, transparent); border-color: color-mix(in srgb, var(--ok) 32%, transparent); }
.say.is-done .say__mark { background: color-mix(in srgb, var(--ok) 20%, transparent); color: var(--ok); }
@media (max-width: 480px) {
	.say { display: grid; grid-template-columns: auto 1fr; gap: .7rem .8rem; align-items: start; }
	.say__mark { margin-top: .1rem; }
	.say__text, .say__actions { grid-column: 2; }
	.formula .say__text, .formula .say__actions { grid-column: 1 / -1; }
}

/* ───────── Diálogos ───────── */
.dlg { display: grid; gap: 1.25rem; }
@media (min-width: 900px) { .dlg { grid-template-columns: 17.5rem minmax(0, 1fr); gap: 1.75rem; align-items: start; } }
.dlg__side { position: relative; }
@media (min-width: 900px) { .dlg__side { position: sticky; top: 5.5rem; } }
.dlg__pick { position: relative; display: block; }
.dlg__pick > .i { position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); pointer-events: none; color: var(--ink-3); }
.select { width: 100%; min-height: 48px; padding: .7rem 2.6rem .7rem 1rem; border-radius: 14px; appearance: none; -webkit-appearance: none; background: var(--fill); border: 1px solid var(--line-2); color: var(--ink); font: 600 .95rem var(--font); }
.select option { background: var(--solid); color: var(--ink); }
.dlg__list { display: none; }
@media (min-width: 900px) {
	.dlg__pick { display: none; }
	.dlg__list { display: grid; gap: .4rem; }
}
.dlg-item { position: relative; display: grid; gap: .1rem; padding: .8rem 2.4rem .8rem 1rem; border-radius: 16px; border: 1px solid transparent; transition: background .2s, border-color .2s; }
.dlg-item:hover { background: var(--fill); }
.dlg-item.is-active { background: var(--fill-2); border-color: var(--line-2); }
.dlg-item__title { font-weight: 600; font-size: .95rem; }
.dlg-item__desc { font-size: .8rem; line-height: 1.4; color: var(--ink-3); }
.dlg-item.is-active .dlg-item__desc { color: var(--ink-2); }
.dlg-item__done { position: absolute; right: .9rem; top: .85rem; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: color-mix(in srgb, var(--ok) 20%, transparent); color: var(--ok); }
.dlg-item__done .i { width: 13px; height: 13px; stroke-width: 2.6; }

.chat { display: flex; flex-direction: column; gap: 1.1rem; padding: 1.25rem; min-width: 0; }
@media (min-width: 640px) { .chat { padding: 1.6rem; } }
.chat__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.chat__head h2 { font-size: 1.2rem; letter-spacing: -.02em; font-weight: 700; }
.chat__head p { margin-top: .2rem; font-size: .9rem; color: var(--ink-2); }
.chat__progress { display: flex; align-items: center; gap: .9rem; }
.chat__progress .mono { color: var(--ink-3); white-space: nowrap; }
.chat__progress .bar { flex: 1; height: 5px; }
.chat__list { display: flex; flex-direction: column; gap: .9rem; min-height: 12rem; padding-block: .25rem; }
.bubble { display: flex; gap: .7rem; max-width: min(94%, 34rem); scroll-margin-bottom: 14rem; }
.bubble.is-latest { animation: rise .35s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
.bubble--partner { align-self: flex-start; }
.bubble--user { align-self: flex-end; }
.bubble__avatar { display: grid; place-items: center; width: 34px; height: 34px; flex: none; margin-top: .15rem; border-radius: 50%; background: var(--grad); color: var(--on-grad); font-weight: 700; font-size: .9rem; }
.bubble__body { padding: .8rem 1rem .75rem; border-radius: 20px; background: var(--fill-2); border: 1px solid var(--line); min-width: 0; }
.bubble--partner .bubble__body { border-top-left-radius: 6px; }
.bubble--user .bubble__body { border-top-right-radius: 6px; background: color-mix(in srgb, var(--accent) 13%, transparent); border-color: color-mix(in srgb, var(--accent) 34%, transparent); }
.bubble__name { margin-bottom: .1rem; font-size: .7rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-3); }
.bubble--user .bubble__name { color: var(--accent-ink); }
.bubble__en { font-weight: 600; line-height: 1.42; }
.bubble__pt { margin-top: .2rem; font-size: .88rem; line-height: 1.4; color: var(--ink-2); }
.bubble__actions { display: flex; gap: .4rem; margin-top: .6rem; }

.chat__controls {
	position: sticky; bottom: var(--dock-offset); z-index: 5; display: grid; gap: .7rem; padding: .85rem;
	margin: .25rem -.35rem -.35rem; border-radius: 22px; border: 1px solid var(--line-2);
	background: color-mix(in srgb, var(--solid) 80%, transparent);
	-webkit-backdrop-filter: blur(16px) saturate(150%); backdrop-filter: blur(16px) saturate(150%);
	box-shadow: 0 14px 34px -18px rgb(0 0 0 / .6);
}
.chat__hint { padding-inline: .35rem; font-size: .86rem; color: var(--ink-2); line-height: 1.45; }
.chat__buttons { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .6rem; }
.chat__buttons .btn { white-space: normal; }
/* no celular o botão de praticar vira só o ícone do microfone (o texto fica para leitor de tela) */
@media (max-width: 480px) {
	.chat__buttons .btn--ghost { width: 48px; padding: 0; }
	.chat__buttons .btn--ghost .hide-sm { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

/* ───────── Vocabulário ───────── */
.chips { display: flex; gap: .5rem; overflow-x: auto; margin: 0 calc(var(--gutter) * -1) 1.75rem; padding: .25rem var(--gutter) .6rem; scrollbar-width: none; scroll-snap-type: x proximity; }
.chips::-webkit-scrollbar { display: none; }
@media (min-width: 900px) { .chips { flex-wrap: wrap; overflow: visible; margin-inline: 0; padding-inline: 0; } }
.chip { flex: none; min-height: 40px; padding: .45rem 1rem; border-radius: 999px; scroll-snap-align: start; background: var(--fill); border: 1px solid var(--line); font-size: .88rem; font-weight: 500; color: var(--ink-2); white-space: nowrap; transition: background .2s, color .2s, border-color .2s; }
.chip:hover { background: var(--fill-2); color: var(--ink); }
.chip.is-active { background: color-mix(in srgb, var(--accent) 16%, transparent); border-color: color-mix(in srgb, var(--accent) 55%, transparent); color: var(--accent-ink); font-weight: 600; }

.flash { width: min(100%, 34rem); margin: 0 auto 1.5rem; perspective: 1400px; }
.flash__card { position: relative; display: block; width: 100%; height: clamp(15rem, 38vh, 19rem); border-radius: 28px; transform-style: preserve-3d; transition: transform .65s var(--ease); }
.flash__card.flipped { transform: rotateY(180deg); }
.face {
	position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .55rem; padding: 2rem 1.5rem 2.6rem; text-align: center;
	border-radius: 28px; border: 1px solid var(--line-2); backface-visibility: hidden; -webkit-backface-visibility: hidden;
	background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, var(--solid)), var(--solid) 70%);
	box-shadow: var(--shine), var(--shadow);
}
.face--back { transform: rotateY(180deg); background: linear-gradient(160deg, color-mix(in srgb, var(--accent-2) 22%, var(--solid)), var(--solid) 72%); border-color: color-mix(in srgb, var(--accent-2) 40%, var(--line)); }
.face__tag { font: 500 .72rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent-ink); }
.face__word { max-width: 100%; font-size: clamp(1.7rem, 1.1rem + 2.8vw, 2.4rem); line-height: 1.15; letter-spacing: -.03em; font-weight: 800; overflow-wrap: anywhere; }
.face__word--pt { font-size: clamp(1.3rem, 1rem + 1.6vw, 1.7rem); color: var(--ok); letter-spacing: -.02em; }
.face__example { max-width: 90%; color: var(--ink-2); font-style: italic; line-height: 1.45; }
.face__hint { position: absolute; bottom: 1rem; left: 0; right: 0; font-size: .78rem; color: var(--ink-3); }
.flash__card:focus-visible { outline-offset: 5px; border-radius: 28px; }

.deck { display: flex; align-items: center; justify-content: center; gap: .8rem; margin-bottom: 1rem; }
.deck__meta { display: flex; align-items: center; justify-content: center; gap: 1rem; color: var(--ink-3); }

/* ───────── Desafio do dia ───────── */
.daypick { display: grid; grid-template-columns: repeat(7, 1fr); gap: .45rem; max-width: 36rem; margin-bottom: 1.5rem; }
.daypick__btn { display: flex; align-items: center; justify-content: center; gap: 2px; min-height: 44px; border-radius: 14px; background: var(--fill); border: 1px solid var(--line); font: 600 .88rem/1 var(--mono); color: var(--ink-2); transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease); }
.daypick__btn .i { width: 13px; height: 13px; stroke-width: 3; }
.daypick__btn:hover { background: var(--fill-2); color: var(--ink); }
.daypick__btn.is-done { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 32%, transparent); }
.daypick__btn.is-active { background: var(--grad); border-color: transparent; color: var(--on-grad); }

.day-card { padding: 1.25rem; }
@media (min-width: 640px) { .day-card { padding: 1.6rem; } }
.day-card__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .8rem; }
.day-card__head h2 { font-size: 1.1rem; letter-spacing: -.02em; font-weight: 700; }
.day-card__head .mono { color: var(--accent-ink); }
.day-card .stack { margin-top: 1.1rem; }
.finish { display: grid; justify-items: center; gap: .9rem; margin-top: 1.75rem; text-align: center; }
.finish__note { font-size: .9rem; color: var(--ink-2); }
.finish .btn--lg { width: 100%; }
@media (min-width: 640px) { .finish .btn--lg { width: auto; } }

/* ───────── Janela de prática ───────── */
.sheet {
	width: min(100% - 1.5rem, 32rem); max-height: calc(100dvh - 1.5rem); margin: auto; padding: 1.25rem 1.25rem 1.5rem; overflow-y: auto;
	border: 1px solid var(--line-2); border-radius: 28px; color: var(--ink);
	background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 8%, var(--solid)), var(--solid) 40%);
	box-shadow: 0 40px 90px -30px rgb(0 0 0 / .8);
}
.sheet[open] { animation: sheet-in .35s var(--ease); }
.sheet::backdrop { background: rgb(3 6 14 / .62); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
:root[data-theme="light"] .sheet::backdrop { background: rgb(15 23 42 / .4); }
@keyframes sheet-in { from { opacity: 0; transform: translateY(24px) scale(.98); } }
@media (max-width: 640px) {
	.sheet { width: 100%; max-width: 100%; margin: auto 0 0; border-radius: 28px 28px 0 0; border-bottom: 0; padding-bottom: calc(1.5rem + env(safe-area-inset-bottom)); }
}
.sheet__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.sheet__bar h2 { font: 500 .78rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent-ink); }
.sheet__phrase { display: grid; justify-items: center; gap: .5rem; margin: 1rem 0 0; padding: 1.4rem 1rem; text-align: center; border-radius: 22px; background: var(--fill); border: 1px solid var(--line); }
.sheet__en { font-size: clamp(1.3rem, 1rem + 1.4vw, 1.6rem); line-height: 1.28; letter-spacing: -.02em; font-weight: 700; }
.sheet__pt { color: var(--ink-2); font-size: .95rem; margin-bottom: .6rem; }

.mic { display: grid; justify-items: center; gap: .9rem; margin: 1.5rem 0 .5rem; }
.mic__btn { display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%; background: var(--grad); color: var(--on-grad); box-shadow: 0 16px 36px -14px var(--accent); transition: transform .25s var(--ease), background .2s; }
.mic__btn .i { width: 34px; height: 34px; }
.mic__btn:hover { transform: scale(1.05); }
.mic__btn.is-listening { background: linear-gradient(135deg, #ef4444, #dc2626); color: #fff; box-shadow: 0 0 0 0 rgb(239 68 68 / .6); animation: listen 1.4s ease-out infinite; }
@keyframes listen { 0% { box-shadow: 0 0 0 0 rgb(239 68 68 / .55); } 80%, 100% { box-shadow: 0 0 0 20px rgb(239 68 68 / 0); } }
.mic__status { min-height: 1.5em; font-size: .92rem; font-weight: 500; color: var(--ink-2); text-align: center; }
.mic__status.is-live { color: var(--bad); font-weight: 600; }

.feedback { display: none; margin-top: 1rem; padding: 1rem 1.1rem; border-radius: 18px; border: 1px solid transparent; }
.feedback.show { display: block; animation: rise .3s var(--ease) both; }
.feedback.success { background: color-mix(in srgb, var(--ok) 11%, transparent); border-color: color-mix(in srgb, var(--ok) 36%, transparent); color: var(--ok); }
.feedback.almost { background: color-mix(in srgb, var(--warn) 11%, transparent); border-color: color-mix(in srgb, var(--warn) 36%, transparent); color: var(--warn); }
.feedback.retry { background: color-mix(in srgb, var(--bad) 11%, transparent); border-color: color-mix(in srgb, var(--bad) 36%, transparent); color: var(--bad); }
.feedback__head { display: flex; align-items: center; gap: .55rem; font-weight: 700; font-size: .98rem; }
.feedback__score { margin-top: .15rem; font-size: .86rem; color: var(--ink-2); }
.feedback__heard { display: grid; gap: .1rem; margin-top: .7rem; padding: .65rem .8rem; border-radius: 12px; background: var(--fill); color: var(--ink); font-size: .92rem; }
.feedback__heard span { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }

.typing { margin-top: 1.1rem; }
.typing summary { display: flex; align-items: center; justify-content: center; gap: .5rem; min-height: 44px; list-style: none; cursor: pointer; font-size: .9rem; font-weight: 500; color: var(--ink-2); border-radius: 12px; }
.typing summary::-webkit-details-marker { display: none; }
.typing summary:hover { color: var(--ink); }
.typing__form { display: flex; gap: .5rem; margin-top: .4rem; }
.input { flex: 1; min-width: 0; min-height: 44px; padding: 0 1rem; border-radius: 14px; background: var(--fill); border: 1px solid var(--line-2); color: var(--ink); font: 400 1rem var(--font); }
.input::placeholder { color: var(--ink-3); }
.input:focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 2px; }

.soundwave { display: inline-flex; align-items: center; gap: 2px; height: 14px; }
.soundwave-bar { width: 3px; height: 100%; background: var(--accent-ink); border-radius: 2px; animation: wave .8s ease-in-out infinite alternate; }
.soundwave-bar:nth-child(2) { animation-delay: .2s; }
.soundwave-bar:nth-child(3) { animation-delay: .4s; }
@keyframes wave { from { height: 4px; } to { height: 14px; } }

/* ───────── Avisos ───────── */
/* avisos ficam no alto da tela: nunca cobrem o botão principal nem a navegação de baixo */
.toasts { position: fixed; z-index: 90; left: 50%; top: calc(72px + env(safe-area-inset-top)); transform: translateX(-50%); display: grid; gap: .5rem; width: min(100% - 2rem, 26rem); pointer-events: none; }
@media (min-width: 900px) { .toasts { left: auto; right: 1.5rem; top: 76px; transform: none; } }
.sheet .toasts { top: 1rem; }
.toast {
	display: flex; align-items: center; gap: .65rem; padding: .75rem 1rem; border-radius: 16px; pointer-events: auto;
	background: color-mix(in srgb, var(--solid) 92%, transparent); border: 1px solid var(--line-2); box-shadow: 0 18px 40px -16px rgb(0 0 0 / .7);
	font-size: .9rem; line-height: 1.4; color: var(--ink); animation: toast-in .35s var(--ease) both;
	-webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.toast .i { color: var(--accent-ink); }
.toast.is-out { opacity: 0; transform: translateY(-8px); transition: opacity .3s, transform .3s; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-12px) scale(.97); } }

/* ───────── Esqueleto de carregamento ───────── */
.skel { display: block; border-radius: 12px; background: linear-gradient(90deg, var(--fill) 25%, var(--fill-2) 40%, var(--fill) 60%); background-size: 300% 100%; animation: shimmer 1.5s ease-in-out infinite; }
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }
.skel--line { height: .9rem; margin-top: .9rem; }
.skel--w30 { width: 30%; margin-top: 0; }
.skel--title { height: 1.7rem; width: 80%; margin-top: .9rem; }
.skel--btn-lg { height: 52px; width: 12rem; margin-top: 1.5rem; border-radius: 999px; }
.skel--row { height: 64px; border-radius: 18px; }
.skel--btn { width: 1rem; height: 1rem; border-radius: 50%; }

/* ───────── Movimento reduzido ───────── */
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
	.bg i { animation: none; }
}