:root {
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #17201e;
  --muted: #64716e;
  --border: #dde3e1;
  --accent: #0f766e;
  --accent-soft: #e0f2ef;
  --accent-text: #ffffff;
  --warn: #9a6200;
  --warn-bg: #fff6e0;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --ok: #157f3c;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1514;
    --card: #182120;
    --text: #e7eeec;
    --muted: #93a39f;
    --border: #2b3836;
    --accent: #2dd4bf;
    --accent-soft: #123a35;
    --accent-text: #062a26;
    --warn: #f5c060;
    --warn-bg: #3a2c0c;
    --bad: #ff8a80;
    --bad-bg: #3d1513;
    --ok: #6ee79a;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f1514;
  --card: #182120;
  --text: #e7eeec;
  --muted: #93a39f;
  --border: #2b3836;
  --accent: #2dd4bf;
  --accent-soft: #123a35;
  --accent-text: #062a26;
  --warn: #f5c060;
  --warn-bg: #3a2c0c;
  --bad: #ff8a80;
  --bad-bg: #3d1513;
  --ok: #6ee79a;
  color-scheme: dark;
}

@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter-latin-var.woff2") format("woff2-variations"),
       url("fonts/inter-latin-var.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Tipografia: uma escala só, usada no app inteiro. */
:root {
  --font-sans: "Inter Variable", Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-xs: 0.8125rem;  /* 13px: selos, números de passo */
  --fs-sm: 0.875rem;   /* 14px: dicas, detalhes, avisos */
  --fs-base: 1rem;     /* 16px: corpo e campos (abaixo disso o iOS dá zoom) */
  --fs-lg: 1.125rem;   /* 18px: títulos dos cartões */
  --fs-xl: 1.375rem;   /* 22px: valores de destaque */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.5;
  font-optical-sizing: auto;
  /* Inter: dígitos de largura fixa (valores alinhados) e "l" com cauda (não confunde com I/1). */
  font-feature-settings: "tnum" 1, "cv05" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px max(16px, env(safe-area-inset-right, 0px)) 12px max(16px, env(safe-area-inset-left, 0px));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--bg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-weight: var(--fw-bold);
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}
.brand img { display: block; border-radius: 7px; }
.brand-name > span { color: var(--accent); }
.topbar-actions { display: flex; gap: 6px; }

main {
  max-width: 640px;
  margin: 0 auto;
  padding-block: 16px 48px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: grid;
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.card h2 {
  margin: 0 0 12px;
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  line-height: 1.3;
  letter-spacing: -0.014em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.step {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
}

input, button { font: inherit; color: inherit; }
input {
  min-width: 0;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }
input::-webkit-outer-spin-button, input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

button {
  cursor: pointer;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  white-space: nowrap;
}
a.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
a.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: var(--fw-semibold); }
button:active, a.button:active { transform: scale(0.98); }
a.button:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: var(--fw-semibold); }
button.ghost.armed { background: var(--bad-bg); color: var(--bad); }
button.ghost { background: transparent; border-color: transparent; color: var(--accent); padding: 8px 10px; font-weight: var(--fw-semibold); }
button.icon { display: inline-grid; place-items: center; padding: 8px; border: none; background: transparent; color: var(--muted); }

/* Ícones (src/icons.js): herdam a cor; o clique vai sempre para o botão. */
.ic { width: 1.25em; height: 1.25em; flex: none; pointer-events: none; }
.assign-status .ic { width: 1em; height: 1em; vertical-align: -0.125em; }
button[data-icon], a.button[data-icon] { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
button[data-icon][hidden] { display: none; }
button.icon-only { padding-inline: 12px; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:disabled:active { transform: none; }

.row { display: flex; gap: 8px; }
.row > input { flex: 1; }
.actions { margin-top: 14px; }
.actions { flex-wrap: wrap; }
.actions > * { flex: 1 1 auto; }
.actions > .primary { flex-basis: 100%; }

.hint { color: var(--muted); font-size: var(--fs-sm); margin: 8px 0 0; }
.empty { color: var(--muted); font-size: var(--fs-sm); margin: 10px 0 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 4px 4px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  font-weight: var(--fw-semibold);
}
.chip button { display: inline-grid; place-items: center; border: none; background: transparent; padding: 4px 6px; color: var(--muted); }
.chip button .ic { width: 16px; height: 16px; }

.toggle { padding: 6px 12px; border-radius: 999px; font-size: var(--fs-sm); }
.toggle.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

.item-form { display: grid; grid-template-columns: 1fr 64px 110px auto; gap: 8px; }
@media (max-width: 420px) {
  .item-form { grid-template-columns: 1fr 1fr; }
  .item-form #item-name { grid-column: 1 / -1; }
  .item-form button { grid-column: 1 / -1; }
}

.money-input, .pct-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  padding-left: 10px;
}
.pct-input { padding: 0 10px 0 0; width: 90px; }
.money-input span, .pct-input span { color: var(--muted); font-size: var(--fs-sm); }
.money-input input, .pct-input input { border: none; background: transparent; padding-left: 6px; }
.pct-input input { text-align: right; padding-right: 4px; }
.money-input:focus-within, .pct-input:focus-within { outline: 2px solid var(--accent); outline-offset: -1px; }
.money-input input:focus, .pct-input input:focus { outline: none; }

#items { display: grid; gap: 10px; margin-top: 14px; }
.item { border: 1px solid var(--border); border-radius: 12px; padding: 10px; }
.item-head { display: flex; align-items: center; gap: 6px; }
.item-head .it-name { font-weight: var(--fw-semibold); border-color: transparent; background: transparent; padding: 6px 8px; }
.item-head .it-name:hover { border-color: var(--border); }
.item-math { display: flex; align-items: center; gap: 8px; margin-top: 6px; color: var(--muted); }
.item-math .it-qty { width: 64px; text-align: center; padding: 8px 4px; }
.item-math .money-input { width: 110px; }
.item-math .money-input input { padding: 8px 6px; }
.it-total { margin-left: auto; color: var(--text); white-space: nowrap; }

.assign { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.assign .chips { margin-top: 10px; }
.assign-status { font-size: var(--fs-sm); margin-top: 8px; }
.assign-status .ok { color: var(--ok); }
.assign-status .warn { color: var(--warn); }
.assign-status .bad { color: var(--bad); }

.units { display: grid; gap: 6px; margin-top: 10px; }
.unit-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 2px 0; }
#tip-people .unit-row { margin-top: 6px; }
.stepper { display: flex; align-items: center; gap: 4px; }
.stepper button { display: inline-grid; place-items: center; width: 36px; height: 36px; padding: 0; border-radius: 50%; }
.stepper input { width: 56px; text-align: center; padding: 6px 4px; }

.subtotal-line { display: flex; justify-content: space-between; margin-top: 14px; color: var(--muted); }
.subtotal-line strong { color: var(--text); }

.segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
}
.segmented button { border: none; background: transparent; padding: 10px 8px; white-space: normal; font-weight: var(--fw-semibold); color: var(--muted); }
.segmented button.on { background: var(--card); color: var(--accent); box-shadow: 0 1px 3px rgb(0 0 0 / 0.12); }
.segmented.small button { padding: 6px; font-size: var(--fs-sm); }

.switch { display: flex; align-items: center; gap: 10px; cursor: pointer; margin: 4px 0; font-weight: var(--fw-medium); }
.switch input { width: 20px; height: 20px; accent-color: var(--accent); }
.tip-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.tip-row > span { color: var(--muted); font-size: var(--fs-sm); }
.quick { display: flex; gap: 6px; flex-wrap: wrap; }
#tip-config[hidden] { display: none; }

.result { border-color: var(--accent); }
#result { display: grid; gap: 8px; }
.person-result { padding: 12px; border-radius: 12px; background: var(--bg); }
.pr-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.pr-name { font-weight: var(--fw-bold); }
.pr-total { font-weight: var(--fw-bold); font-size: var(--fs-xl); letter-spacing: -0.02em; color: var(--accent); }
.pr-sub { font-size: var(--fs-sm); color: var(--muted); margin-top: 2px; }
details { margin-top: 6px; font-size: var(--fs-sm); }
summary { cursor: pointer; color: var(--accent); }
details ul { list-style: none; margin: 6px 0 0; padding: 0; }
details li { display: flex; justify-content: space-between; gap: 10px; padding: 2px 0; color: var(--muted); }

.totals { margin-top: 14px; border-top: 1px solid var(--border); padding-top: 10px; }
.totals div { display: flex; justify-content: space-between; padding: 2px 0; color: var(--muted); }
.totals .grand { color: var(--text); font-weight: var(--fw-bold); font-size: var(--fs-xl); letter-spacing: -0.02em; margin-top: 4px; }

.warning { font-size: var(--fs-sm); padding: 8px 10px; border-radius: 10px; margin-bottom: 8px; background: var(--warn-bg); color: var(--warn); }
.warning.over { background: var(--bad-bg); color: var(--bad); }

.donate .donate-icon { display: inline-grid; color: var(--bad); }
.donate .donate-icon:empty { display: none; }
#btn-pix .ic { color: #32bcad; } /* cor do logo do Pix */
.donate .actions { margin-top: 12px; }
.pix-qr { margin-top: 12px; font-size: var(--fs-sm); }
.pix-qr summary { font-weight: var(--fw-semibold); }
.pix-qr img { display: block; margin: 12px auto 4px; width: 200px; height: 200px; border-radius: 12px; border: 1px solid var(--border); background: #fff; }
.pix-qr .hint { text-align: center; }

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 20px);
  opacity: 0;
  pointer-events: none;
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: var(--fs-sm);
  transition: opacity 0.2s, transform 0.2s;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }