:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1e222b;
  --line: #2a2f3a;
  --text: #e8eaf0;
  --muted: #8b93a7;
  --accent: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
}

* { box-sizing: border-box; }

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

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
}

.brand { font-size: 1.15rem; font-weight: 700; }
.brand .sub { color: var(--muted); font-size: .75rem; font-weight: 400; margin-left: 8px; }

.tabs { display: flex; gap: 6px; }
.tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: .9rem;
}
.tab.active { background: var(--panel2); color: var(--text); border-color: var(--line); }

main { max-width: 960px; margin: 0 auto; padding: 22px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 18px;
}
.card.small { max-width: 360px; margin: 120px auto; text-align: center; }

h2 { margin: 0 0 10px; font-size: 1.02rem; }

.muted { color: var(--muted); font-size: .85rem; }
.mono { font-family: ui-monospace, monospace; font-size: .78rem; }
.err { color: var(--bad); margin-top: 8px; }

.row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.row.spread { justify-content: space-between; align-items: center; margin-top: 0; }

button {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: .88rem;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: #08130c; font-weight: 600; }
button.danger { background: transparent; border-color: var(--bad); color: var(--bad); }

input, textarea, select {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: .92rem;
  font-family: inherit;
}
textarea { width: 100%; resize: vertical; }

label.check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 4px 10px 4px 0;
  font-size: .88rem;
  cursor: pointer;
}

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.grid2 label { display: flex; flex-direction: column; gap: 6px; font-size: .85rem; color: var(--muted); }
input[type="time"], input[type="number"] { width: 100%; }
input[type="password"] { width: 100%; margin: 10px 0; }

fieldset.days { border: 1px solid var(--line); border-radius: 8px; margin-top: 12px; padding: 10px; }

#m-groups {
  border: 1px dashed var(--line);
  border-radius: 8px;
  margin-top: 10px;
  padding: 10px;
  max-height: 180px;
  overflow-y: auto;
}
#m-groups.disabled { opacity: .4; pointer-events: none; }

table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }

.state { font-weight: 700; font-size: 1.05rem; }
.state.ok { color: var(--accent); }
.state.warn { color: var(--warn); }
.state.bad { color: var(--bad); }

.qr { text-align: center; margin: 16px 0; }
.qr img { background: #fff; padding: 8px; border-radius: 10px; width: 260px; }

.msg { display: flex; justify-content: space-between; gap: 14px; padding: 12px 4px; border-bottom: 1px solid var(--line); }
.msg.off { opacity: .5; }
.msg-content { font-size: .95rem; white-space: pre-wrap; }
.msg-actions { display: flex; gap: 6px; flex-shrink: 0; align-items: flex-start; }
.msg-actions button { padding: 5px 10px; font-size: .8rem; }

.badge { padding: 2px 8px; border-radius: 99px; font-size: .75rem; font-weight: 600; }
.badge.sent { background: rgba(34, 197, 94, .15); color: var(--accent); }
.badge.error { background: rgba(239, 68, 68, .15); color: var(--bad); }
.badge.skipped { background: rgba(245, 158, 11, .15); color: var(--warn); }

.overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, .7); display: flex; align-items: flex-start; justify-content: center; z-index: 50; }
.hidden { display: none !important; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--panel2);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  z-index: 60;
  font-size: .9rem;
}
.toast.bad { border-color: var(--bad); }

/* auth + header */
.auth-form { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
#user-box { margin-left: auto; display: flex; gap: 10px; align-items: center; font-size: .9rem; }
button.small { padding: 4px 10px; font-size: .8rem; }

/* auto-resposta */
.lbl { display: block; margin-top: 14px; font-size: .85rem; color: var(--muted); }
.ar-opt { display: grid; grid-template-columns: 34px 1fr 2fr; gap: 12px; margin-top: 14px; align-items: start; }
.ar-key { font-weight: 700; padding: 8px 0; text-align: center; background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; }
.ar-opt input, .ar-opt textarea { width: 100%; }
#ar-options { margin-top: 4px; }