:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --border: #e3e7ee;
  --text: #1a2233;
  --muted: #667085;
  --accent: #47398e;
  --accent-soft: #ecebfa;
  --accent-light: #6969cd;
  --good: #1c7c3f;
  --good-soft: #e8f7ee;
  --warn: #8a6d00;
  --warn-soft: #fff7e0;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 4px 16px rgba(16, 24, 40, 0.06);
}

/* Site sempre no tema claro, independente da preferência do sistema. */

* { box-sizing: border-box; }
/* Sem isso, um `display` definido por classe (ex: display:flex) vence o
   atributo [hidden] por especificidade, e o elemento "escondido" continua
   aparecendo. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 18px;
}
.tagline {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 640px;
}

.layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0; /* evita que a grid estique a página pra caber a tabela larga */
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.panel-head h2 {
  font-size: 15px;
  margin: 0;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: .01em;
}
.panel-actions { display: flex; gap: 8px; position: relative; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .12s ease, border-color .12s ease, opacity .12s ease;
}
.btn:hover { background: var(--accent-soft); }
.btn:disabled { opacity: .45; cursor: default; background: none; }
.btn-ghost { background: transparent; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { opacity: .92; }
.btn-primary:disabled { opacity: .45; background: linear-gradient(135deg, var(--accent-light), var(--accent)); }

.btn-whatsapp {
  background: #25d366;
  border-color: #25d366;
  color: #fff;
}
.btn-whatsapp:hover { opacity: .92; background: #25d366; }
.btn-whatsapp:disabled { background: #25d366; }

.example-menu { position: relative; }
.example-list {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 200px;
  z-index: 10;
  overflow: hidden;
}
.example-list button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: none;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
}
.example-list button:hover { background: var(--accent-soft); }

.pnr-textarea {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  font: 13px/1.5 "SF Mono", "Fira Code", Menlo, Consolas, monospace;
}
.pnr-textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.detect-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.detect-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.system-toggles { display: flex; gap: 6px; }
.sys-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
}
.sys-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.confidence-badge {
  margin-left: auto;
  font-size: 12px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--good-soft);
  color: var(--good);
  font-weight: 700;
}
.confidence-badge.low {
  background: var(--warn-soft);
  color: var(--warn);
}
.status-line {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
  min-height: 16px;
}

.error-box {
  border: 1px solid var(--warn);
  background: var(--warn-soft);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
  margin: 20px 0;
}
.error-box p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text);
}

.feedback-box {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.feedback-prompt {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
.link-btn {
  border: none;
  background: none;
  padding: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}
.link-btn:hover { opacity: .8; }
.feedback-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feedback-comment {
  width: 100%;
  resize: vertical;
  min-height: 64px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font: 13px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.feedback-comment:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.feedback-form-actions { display: flex; gap: 8px; }
.feedback-thanks {
  margin: 0;
  font-size: 13px;
  color: var(--good);
  font-weight: 600;
}

.preview {
  min-height: 320px;
  min-width: 0;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 16px;
  overflow: auto;
}
.empty-state {
  color: var(--muted);
  font-size: 13.5px;
  margin: 40px 0;
  text-align: center;
}

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
  padding: 10px 20px 30px;
}

.powered-by {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px;
}
.powered-by-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 700;
}
.powered-by-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 600;
  transition: color .12s ease;
}
.powered-by-item:hover { color: var(--text); }
.powered-by-item svg { flex-shrink: 0; }
.nexsion-logo {
  display: block;
  height: 12px;
  width: auto;
  opacity: .85;
  transition: opacity .12s ease;
}
.powered-by-item:hover .nexsion-logo { opacity: 1; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow);
  z-index: 50;
}