:root {
  --ink: #0B1220;
  --panel: #111C2E;
  --accent: #14B8A6;
  --accent-dark: #0D9488;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --border: #E3E8EF;
  --text: #1B2431;
  --muted: #667085;
  --success: #0D9488;
  --success-bg: #E6FBF6;
  --fail: #D0453A;
  --fail-bg: #FDECEA;
  --new-bg: #FFF7E6;
  --new: #B9770E;
  --radius: 10px;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 14px; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: "SFMono-Regular", Consolas, monospace; background: #EEF1F5; padding: 2px 5px; border-radius: 4px; }

/* ---------- Auth pages ---------- */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--ink), #1B2A45);
}
.auth-card {
  background: var(--card); padding: 40px; border-radius: var(--radius);
  width: 360px; box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.auth-card h1 { font-size: 20px; margin: 0 0 4px; }
.auth-card .subtitle { color: var(--muted); margin: 0 0 20px; }
.auth-card form label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 14px; color: var(--muted); }
.auth-card input { width: 100%; margin-top: 6px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.auth-card button, .btn {
  background: var(--accent-dark); color: #fff; border: none; padding: 10px 16px;
  border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.auth-card button { width: 100%; margin-top: 6px; }
.auth-card button:hover, .btn:hover { background: var(--ink); }
.notice { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; }
.notice.error { background: var(--fail-bg); color: var(--fail); }
.notice.success { background: var(--success-bg); color: var(--success); }

/* ---------- App shell ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: var(--ink); color: #cfd8e3; flex-shrink: 0;
  padding: 24px 0; display: flex; flex-direction: column;
}
.sidebar .brand { padding: 0 20px 20px; font-weight: 700; color: #fff; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 12px; }
.sidebar .brand span { color: var(--accent); }
.sidebar nav a {
  display: block; padding: 11px 20px; color: #a9b4c4; font-weight: 500; border-left: 3px solid transparent;
}
.sidebar nav a:hover { color: #fff; text-decoration: none; }
.sidebar nav a.active { color: #fff; border-left-color: var(--accent); background: rgba(255,255,255,.04); }
.sidebar .footer { margin-top: auto; padding: 16px 20px 0; font-size: 12px; color: #6b7688; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar .footer a { color: #a9b4c4; }

.main { flex: 1; padding: 28px 34px; max-width: 1200px; }
.main h1 { font-size: 20px; margin: 0 0 4px; }
.main .page-sub { color: var(--muted); margin: 0 0 22px; font-size: 13px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 14px; margin-bottom: 26px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat-card .num { font-size: 26px; font-weight: 700; }
.stat-card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }

.panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 22px; }
.panel h2 { font-size: 15px; margin: 0 0 14px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border); text-transform: uppercase; font-size: 11px; letter-spacing: .04em; }
td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge.new { background: var(--new-bg); color: var(--new); }
.badge.assigned { background: var(--success-bg); color: var(--success); }
.badge.assign_failed { background: var(--fail-bg); color: var(--fail); }
.badge.active { background: var(--success-bg); color: var(--success); }
.badge.inactive { background: #F0F1F3; color: var(--muted); }
.badge.success { background: var(--success-bg); color: var(--success); }
.badge.failed { background: var(--fail-bg); color: var(--fail); }

/* WhatsApp-style chat bubble for each inbound message — the signature detail */
.bubble-row { display: flex; }
.bubble {
  background: #DCF8C6; border-radius: 10px; padding: 8px 12px; max-width: 340px;
  font-size: 13px; position: relative; box-shadow: 0 1px 1px rgba(0,0,0,.08);
}
.bubble .meta { display: block; margin-top: 4px; font-size: 10px; color: #5b6b57; }

form.inline { display: inline; }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.form-row input, .form-row select { padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }
.form-row input[type=text], .form-row input[type=email] { flex: 1; min-width: 160px; }

.webhook-box { display: flex; gap: 8px; align-items: center; margin-top: 10px; }
.webhook-box input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-family: monospace; font-size: 12.5px; background: #FAFBFC; }
.copy-btn { background: var(--ink); color: #fff; border: none; padding: 10px 14px; border-radius: 8px; cursor: pointer; font-size: 12px; font-weight: 600; }

.btn-danger { background: var(--fail); }
.btn-danger:hover { background: #a8362d; }
.btn-secondary { background: #EEF1F5; color: var(--text); }
.btn-secondary:hover { background: #E1E5EB; }

.empty-state { color: var(--muted); font-size: 13px; padding: 20px 0; text-align: center; }