:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d24;
  --text-muted: #6b7280;
  --brand: #128c7e;
  --brand-dark: #0e6b60;
  --danger: #d84343;
  --danger-bg: #fdeeee;
  --success: #1f8a4c;
  --success-bg: #eaf7ef;
  --warn: #9a6b00;
  --warn-bg: #fff6e0;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 700;
  font-size: 20px;
  color: var(--brand-dark);
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 20px; align-items: center; }
.nav a { color: var(--text); font-size: 14px; font-weight: 500; }
.nav a:hover { color: var(--brand); text-decoration: none; }

.page {
  flex: 1;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px;
}

.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

h1 { font-size: 24px; margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 18px; margin: 0 0 12px; }
.subtitle { color: var(--text-muted); margin: 0 0 24px; font-size: 14px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

.auth-wrap {
  max-width: 380px;
  margin: 48px auto;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
input[type=text], input[type=email], input[type=password], input[type=tel], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  margin-bottom: 16px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(18, 140, 126, 0.12);
}
textarea { resize: vertical; min-height: 90px; }

.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg); }

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 20px;
}
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(216,67,67,0.25); }
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(31,138,76,0.25); }
.alert-info { background: var(--warn-bg); color: var(--warn); border: 1px solid rgba(154,107,0,0.2); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-approved, .badge-delivered, .badge-read, .badge-sent { background: var(--success-bg); color: var(--success); }
.badge-pending { background: var(--warn-bg); color: var(--warn); }
.badge-rejected, .badge-failed { background: var(--danger-bg); color: var(--danger); }

.empty {
  color: var(--text-muted);
  font-size: 14px;
  padding: 24px 0;
  text-align: center;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.stat .num { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
.stat .label { color: var(--text-muted); font-size: 13px; margin-top: 2px; }

.helper { color: var(--text-muted); font-size: 13px; margin-top: -10px; margin-bottom: 16px; }