/* ===== Painel Bittle — estilos acessiveis ===== */
:root {
  --bg: #0e1116;
  --surface: #171b22;
  --surface-2: #1f242d;
  --border: #2a313c;
  --text: #e8ecf1;
  --text-dim: #a2adbb;
  --primary: #f7931a;      /* laranja bitcoin */
  --primary-ink: #1a1200;
  --focus: #4c9ffe;
  --ok: #2ecc71;
  --err: #ff6b6b;
  --warn: #ffcf5c;
  --radius: 12px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-2: #eef1f6;
    --border: #d7dee8;
    --text: #1a2029;
    --text-dim: #566072;
    --primary-ink: #1a1200;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* Foco visivel em tudo que recebe foco */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 10px 16px;
  z-index: 100;
  font-weight: 700;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.brand-mark {
  display: grid; place-items: center;
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary); color: var(--primary-ink); font-weight: 900;
}
.status-pill {
  font-size: 0.85rem; font-weight: 600;
  padding: 6px 12px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.status-pill.ok { color: var(--ok); border-color: var(--ok); }
.status-pill.err { color: var(--err); border-color: var(--err); }

/* Layout */
.layout { display: grid; grid-template-columns: 260px 1fr; min-height: calc(100vh - 61px); }
@media (max-width: 800px) { .layout { grid-template-columns: 1fr; } }

.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 12px; }
.sidebar ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
@media (max-width: 800px) {
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .sidebar ul { flex-direction: row; flex-wrap: wrap; }
}
.sidebar button[role="tab"] {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid transparent;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
}
.sidebar button[role="tab"]:hover { background: var(--surface-2); color: var(--text); }
.sidebar button[role="tab"][aria-selected="true"] {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--primary);
}

/* Content */
.content { padding: 28px clamp(16px, 4vw, 44px); max-width: 900px; }
.content:focus { outline: none; }
.panel h1 { margin: 0 0 6px; font-size: 1.6rem; }
.panel h2 { font-size: 1.2rem; margin: 24px 0 10px; }
.lede { color: var(--text-dim); margin: 0 0 24px; }
.lede code, code {
  background: var(--surface-2); padding: 2px 6px; border-radius: 6px;
  font-family: "Fira Code", ui-monospace, monospace; font-size: 0.86em;
}

/* Forms */
.op-form { display: flex; flex-direction: column; gap: 18px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .grid-2 { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: 0.92rem; }
.req { color: var(--primary); }
.hint { margin: 0; font-size: 0.82rem; color: var(--text-dim); }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 13px;
  width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--text-dim); }
textarea { resize: vertical; font-family: "Fira Code", ui-monospace, monospace; }
input:invalid:not(:placeholder-shown) { border-color: var(--err); }

.input-row { display: flex; gap: 8px; align-items: stretch; }
.input-row input { flex: 1; }

.advanced { border: 1px solid var(--border); border-radius: 10px; padding: 4px 14px 14px; }
.advanced summary { cursor: pointer; font-weight: 600; padding: 10px 0; }
.advanced .field, .advanced .grid-2 { margin-top: 14px; }

/* Buttons */
.btn-primary, .btn-secondary {
  font: inherit; font-weight: 700; cursor: pointer;
  border-radius: 10px; padding: 11px 20px; border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: var(--primary-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.6; cursor: progress; }
.btn-secondary { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--primary); }

/* Result area */
.result { margin-top: 24px; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; }
.result-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; font-weight: 700; }
.result.ok .result-head { background: rgba(46,204,113,0.12); color: var(--ok); }
.result.err .result-head { background: rgba(255,107,107,0.12); color: var(--err); }
.result-body { padding: 16px; display: grid; gap: 16px; }
@media (min-width: 640px) { .result-body.has-qr { grid-template-columns: auto 1fr; } }

.qr-wrap { text-align: center; }
.qr-wrap img { width: 200px; height: 200px; background: #fff; border-radius: 10px; padding: 8px; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 0.9rem; }
.kv dt { color: var(--text-dim); }
.kv dd { margin: 0; word-break: break-all; font-family: "Fira Code", ui-monospace, monospace; }

.copy-field { display: flex; gap: 8px; align-items: center; }
.copy-field code { flex: 1; overflow-x: auto; white-space: nowrap; padding: 8px 10px; }

.raw-json { margin: 0; }
.raw-json summary { cursor: pointer; color: var(--text-dim); font-size: 0.85rem; padding: 8px 0; }
.raw-json pre {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow-x: auto; font-size: 0.82rem; margin: 0;
}

/* Status badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; }
.badge.settled { background: rgba(46,204,113,0.18); color: var(--ok); }
.badge.created, .badge.pending, .badge.processing, .badge.delayed { background: rgba(255,207,92,0.18); color: var(--warn); }
.badge.expired, .badge.failed, .badge.canceled, .badge.refunded { background: rgba(255,107,107,0.18); color: var(--err); }

/* Webhook */
.webhook-url-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 24px; }
.webhook-url-box label { font-weight: 600; display: block; margin-bottom: 6px; }
.webhook-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.webhook-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.auto-refresh { font-size: 0.85rem; color: var(--text-dim); display: flex; align-items: center; gap: 6px; }
.auto-refresh input { width: auto; }
.webhook-list { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.webhook-list .empty { color: var(--text-dim); }
.wh-item { border: 1px solid var(--border); border-radius: 10px; background: var(--surface); overflow: hidden; }
.wh-item summary { cursor: pointer; padding: 12px 14px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.wh-item summary .wh-event { font-weight: 700; }
.wh-item summary .wh-time { color: var(--text-dim); font-size: 0.82rem; margin-left: auto; }
.wh-item pre { margin: 0; padding: 12px 14px; background: var(--bg); overflow-x: auto; font-size: 0.8rem; border-top: 1px solid var(--border); }

/* Toast */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: 12px 20px; border-radius: 10px; font-weight: 600; z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}