:root {
  --navy: #16233c;
  --navy-light: #22345a;
  --gold: #b08d47;
  --bg: #f4f5f7;
  --border: #dde1e7;
  --text: #1c2430;
  --text-muted: #6b7280;
  --danger: #b3261e;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

/* ---------- Login ---------- */

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 36px;
  width: 340px;
  box-shadow: 0 10px 30px rgba(22, 35, 60, 0.08);
}

.login-card h1 {
  font-size: 18px;
  margin: 0 0 4px;
  color: var(--navy);
}

.login-card p.subtitle {
  margin: 0 0 24px;
  color: var(--text-muted);
  font-size: 13px;
}

.login-card label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}

.login-card button {
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: 6px;
  background: var(--navy);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

.login-card button:hover { background: var(--navy-light); }

.error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 12px;
  min-height: 16px;
}

/* ---------- App shell ---------- */

.shell {
  display: flex;
  height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--navy);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar .brand {
  padding: 20px;
  font-size: 15px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar .brand small {
  display: block;
  font-weight: 400;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  margin-top: 2px;
}

.menu {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.85);
  padding: 12px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13.5px;
  margin-bottom: 4px;
  line-height: 1.4;
}

.menu-item:hover { background: rgba(255,255,255,0.08); }
.menu-item.active { background: var(--gold); color: #23180a; font-weight: 600; }

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 12.5px;
  color: rgba(255,255,255,0.7);
}

.sidebar-footer button {
  background: none;
  border: none;
  color: var(--gold);
  cursor: pointer;
  font-size: 12.5px;
  padding: 0;
  margin-top: 6px;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.topbar h2 { margin: 0; font-size: 16px; color: var(--navy); }
.topbar p { margin: 4px 0 0; color: var(--text-muted); font-size: 13px; }

.empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
  padding: 40px;
}

.case-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 28px;
  border-bottom: 1px solid var(--border);
  background: #fafbfc;
  font-size: 13px;
  color: var(--text-muted);
}

.case-toolbar button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text);
}

.log {
  flex: 1;
  overflow-y: auto;
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bubble {
  max-width: 720px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.bubble.user {
  align-self: flex-end;
  background: var(--navy);
  color: #fff;
}

.bubble.assistant {
  align-self: flex-start;
  background: #fff;
  border: 1px solid var(--border);
}

.bubble.tool {
  align-self: flex-start;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 12.5px;
  font-family: "SF Mono", Consolas, monospace;
  padding: 2px 4px;
}

.bubble.error {
  align-self: flex-start;
  background: #fdecea;
  border: 1px solid #f3c6c2;
  color: var(--danger);
}

.files-box {
  align-self: flex-start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  max-width: 720px;
}

.files-box .title { font-weight: 600; margin-bottom: 8px; color: var(--navy); }
.files-box a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--navy);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  margin: 3px 6px 3px 0;
  font-size: 12.5px;
}
.files-box a:hover { border-color: var(--gold); }

.composer {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 14px 28px 18px;
}

.composer .file-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.file-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px 10px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.file-chip button {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13px;
}

.composer-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.composer textarea {
  flex: 1;
  resize: none;
  min-height: 46px;
  max-height: 180px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}

.composer .attach-btn, .composer .send-btn {
  border: none;
  border-radius: 8px;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 13.5px;
}

.composer .attach-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
}

.composer .send-btn {
  background: var(--navy);
  color: #fff;
}

.composer .send-btn:disabled {
  background: #9aa4b2;
  cursor: not-allowed;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #9aa4b2;
}

.status-dot.working { background: var(--gold); animation: pulse 1s infinite; }
.status-dot.error { background: var(--danger); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- Envio de Negativa ---------- */

.menu-section-label {
  padding: 10px 20px 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

.envio-view {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.envio-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.envio-header h2 { margin: 0 0 6px; font-size: 17px; color: var(--navy); }
.envio-header p { margin: 0; color: var(--text-muted); font-size: 13px; max-width: 560px; line-height: 1.5; }

.secondary-btn {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 9px 14px;
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.secondary-btn:hover { border-color: var(--gold); }

.envio-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 24px;
  max-width: 1040px;
}

.envio-grid {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: 0 32px;
  align-items: start;
}

.envio-col { display: flex; flex-direction: column; }

.field-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 14px 0 6px;
}
.field-label:first-child { margin-top: 0; }

.envio-col input, .envio-col textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--text);
}
.envio-col textarea { resize: vertical; }

.field-row { display: flex; gap: 14px; }
.field-row > div { flex: 1; }

.file-drop {
  display: flex;
  align-items: center;
  border: 1.5px dashed var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text-muted);
}
.file-drop:hover { border-color: var(--gold); color: var(--text); }
.file-drop.has-file { border-style: solid; color: var(--text); }

.extract-status { font-size: 11.5px; line-height: 1.5; margin-top: 8px; color: var(--text-muted); }
.extract-status.ok { color: #2f6e46; }
.extract-status.warn { color: #9a6b1f; }

.envio-error { color: var(--danger); font-size: 12.5px; margin-top: 12px; min-height: 14px; }

.envio-send-btn { margin-top: 20px; width: 100%; padding: 12px; }

.envio-status-trail {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
.envio-status-row { margin-bottom: 8px; }
#envio-download-proof-btn { margin-top: 4px; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(22,35,60,0.45);
  align-items: center; justify-content: center; z-index: 60; padding: 24px;
}
.modal-overlay[style*="flex"] { display: flex; }
.modal {
  background: #fff; border-radius: 10px; border: 1px solid var(--border);
  width: 100%; max-width: 880px; max-height: 86vh; overflow: hidden;
  display: flex; flex-direction: column;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px; border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; font-size: 15.5px; color: var(--navy); }
.modal-close { border: none; background: none; font-size: 20px; cursor: pointer; color: var(--text-muted); }
.modal-body { padding: 16px 22px; overflow-y: auto; }

.data-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.data-table th {
  text-align: left; font-weight: 600; font-size: 10.5px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--text-muted); padding: 0 8px 8px; border-bottom: 1px solid var(--border);
}
.data-table td { padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table a { color: var(--navy); }