/* ============================================================
   Reset + fundamentos compartilhados (botões, campos, scroll)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html {
  /* Escala da interface (Settings › System › Scale) */
  font-size: calc(16px * var(--ui-scale, 1));
  height: 100%;
}

body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.875rem;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior: none;
  touch-action: manipulation;
}

h1, h2, h3, h4, p, figure { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
svg { display: block; }
img { max-width: 100%; }

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

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: inherit;
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}
/* campos que já vivem dentro de um invólucro com anel próprio */
.sm-search input:focus-visible,
.br-url input:focus-visible,
.pg-search input:focus-visible,
.login-input:focus-visible,
.np-area:focus-visible { outline: none; }

::selection { background: var(--accent-soft); color: var(--text); }

/* ---------------------- Scrollbars ---------------------- */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: 999px;
  border: 3px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-mute); background-clip: padding-box; }

/* ---------------------- Utilitários ---------------------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.row { display: flex; align-items: center; gap: 0.5rem; }
.col { display: flex; flex-direction: column; }
.grow { flex: 1; min-width: 0; }
.dim { color: var(--text-dim); }
.mute { color: var(--text-mute); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mono { font-family: var(--mono); }
.no-select { user-select: none; -webkit-user-select: none; }

/* ---------------------- Componentes base ---------------------- */

/* Botão padrão */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  height: 2.25rem; padding: 0 0.95rem;
  border-radius: var(--r-sm);
  background: var(--raise);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 0.8125rem; font-weight: 550;
  transition: background var(--t2) var(--ease), transform var(--t1) var(--ease),
    border-color var(--t2) var(--ease), box-shadow var(--t2) var(--ease);
}
.btn:hover { background: var(--hover); border-color: var(--line-strong); }
.btn:active { transform: scale(0.97); background: var(--active); }
.btn svg { width: 1rem; height: 1rem; }

.btn.primary {
  background: var(--accent-grad);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px -4px var(--accent);
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--hover); }
.btn.danger { color: #ff7a7a; }
.btn.sm { height: 1.85rem; padding: 0 0.7rem; font-size: 0.75rem; }
.btn[disabled] { opacity: 0.4; pointer-events: none; }

/* Botão só de ícone */
.ibtn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: var(--r-sm);
  color: var(--text-dim);
  transition: background var(--t2) var(--ease), color var(--t2) var(--ease),
    transform var(--t1) var(--ease);
}
.ibtn svg { width: 1.05rem; height: 1.05rem; }
.ibtn:hover { background: var(--hover); color: var(--text); }
.ibtn:active { transform: scale(0.92); }
.ibtn[disabled] { opacity: 0.32; pointer-events: none; }

/* Campo de texto */
.field {
  height: 2.25rem;
  padding: 0 0.75rem;
  border-radius: var(--r-sm);
  background: var(--field);
  border: 1px solid var(--line);
  color: var(--text);
  transition: border-color var(--t2) var(--ease), box-shadow var(--t2) var(--ease),
    background var(--t2) var(--ease);
}
.field::placeholder { color: var(--text-mute); }
.field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Interruptor */
.switch {
  position: relative; flex: none;
  width: 2.6rem; height: 1.45rem;
  border-radius: var(--r-pill);
  background: var(--raise-2);
  border: 1px solid var(--line-strong);
  transition: background var(--t3) var(--ease), border-color var(--t3) var(--ease);
}
.switch::after {
  content: ""; position: absolute; top: 50%; left: 0.18rem;
  width: 0.95rem; height: 0.95rem; border-radius: 50%;
  background: var(--text-dim);
  transform: translateY(-50%);
  transition: transform var(--t3) var(--spring), background var(--t3) var(--ease),
    width var(--t2) var(--ease);
}
.switch:active::after { width: 1.2rem; }
.switch[aria-checked="true"] { background: var(--accent-grad); border-color: transparent; }
.switch[aria-checked="true"]::after { transform: translate(1.12rem, -50%); background: #fff; }

/* Slider */
.slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 0.375rem; border-radius: 999px;
  background: linear-gradient(to right, var(--accent) var(--fill, 50%), var(--raise-2) var(--fill, 50%));
  cursor: pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 0.95rem; height: 0.95rem; border-radius: 50%;
  background: #fff; border: 2px solid var(--accent);
  box-shadow: var(--shadow-1);
  transition: transform var(--t2) var(--spring);
}
.slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.slider::-moz-range-thumb {
  width: 0.85rem; height: 0.85rem; border-radius: 50%;
  background: #fff; border: 2px solid var(--accent);
}
.slider::-moz-range-track { height: 0.375rem; border-radius: 999px; background: transparent; }

/* Cartão / divisor / etiqueta */
.card {
  background: var(--raise);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 0.9rem 1rem;
}
.divider { height: 1px; background: var(--line); margin: 0.5rem 0; }
.tag {
  font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--text-mute);
}

/* Animações reutilizáveis */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes riseIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes popIn { from { opacity: 0; transform: scale(0.94); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }

.spinner {
  width: 1rem; height: 1rem; flex: none;
  border-radius: 50%;
  border: 2px solid var(--line-strong);
  border-top-color: var(--accent);
  animation: spin 700ms linear infinite;
}