:root {
  --bg: #f7f7f8;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --muted: #666;
  --border: #e2e2e2;
  --accent: #f9ab00;
  --accent-text: #ffffff;
  --error: #c0392b;
  --success: #1e8e3e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* --- Centered card layout (login, add-customer) --- */
.page-center {
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  max-width: 440px;
  width: 100%;
}

h1 { font-size: 20px; margin: 0 0 4px 0; }
p.subtitle { color: var(--muted); font-size: 14px; margin: 0 0 24px 0; }
label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 6px 0; }
input[type="text"], input[type="email"], input[type="tel"], input[type="date"], input[type="file"], select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}
input[type="checkbox"] { width: 16px; height: 16px; margin-right: 8px; vertical-align: middle; }
.checkbox-row { display: flex; align-items: center; margin-top: 16px; }
.checkbox-row label { margin: 0; font-weight: 400; }

button {
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
button.full-width { width: 100%; margin-top: 24px; }
button:disabled { opacity: 0.6; cursor: not-allowed; }
button.secondary {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.msg { font-size: 13px; margin-top: 12px; padding: 10px 12px; border-radius: 8px; display: none; }
.msg.error { display: block; background: #fdecea; color: var(--error); }
.msg.success { display: block; background: #e6f4ea; color: var(--success); }

/* --- App shell (dashboard, add-customer once signed in) --- */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; font-size: 15px; }
.topbar nav a {
  margin-right: 20px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.topbar nav a.active, .topbar nav a:hover { color: var(--text); }
.topbar .whoami { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.topbar .whoami button { padding: 6px 12px; font-size: 12px; }
.biz-switcher {
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
}

.container { max-width: 960px; margin: 0 auto; padding: 32px 16px; }

/* --- Dashboard stat tiles --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.stat-tile {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.stat-tile .value { font-size: 28px; font-weight: 700; }
.stat-tile .label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* --- Activity table --- */
.table-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.sent { background: #e8eaed; color: #444; }
.badge.completed { background: #e6f4ea; color: var(--success); }
.badge.pending { background: #fff4e5; color: #b26a00; }
.badge.failed { background: #fdecea; color: var(--error); }

/* --- Customer status select (customers.html) --- */
select.status-select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  width: auto;
}
select.status-select.active { color: var(--success); }
select.status-select.opted-out { color: #b26a00; }
select.status-select.do-not-call { color: var(--error); }
select.status-select:disabled { opacity: 0.6; cursor: not-allowed; }

.stars { color: #f9ab00; letter-spacing: 1px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); font-size: 14px; }

.loading { text-align: center; padding: 40px; color: var(--muted); font-size: 14px; }