@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap');

:root {
  --cream: #f6f4d2;
  --cream-dark: #ece8b0;
  --navy: #2c3c56;
  --navy-light: #47597a;
  --navy-soft: rgba(44, 60, 86, 0.08);
  --white: #fffdf3;
  --danger: #a4423a;
  --success: #3d6b4f;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Nunito', sans-serif;
  background: var(--cream);
  color: var(--navy);
  min-height: 100vh;
}

header.topbar {
  background: var(--white);
  border-bottom: 3px solid var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.75rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-logo { height: 40px; width: auto; }

nav.tabs {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

nav.tabs a {
  text-decoration: none;
  color: var(--navy);
  font-weight: 700;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  transition: background 0.15s ease;
}

nav.tabs a:hover { background: var(--navy-soft); }

nav.tabs a.active {
  background: var(--navy);
  color: var(--cream);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 10px rgba(44, 60, 86, 0.06);
}

.card h2 {
  margin-top: 0;
  font-size: 1.25rem;
  color: var(--navy);
}

.muted { color: var(--navy-light); font-size: 0.92rem; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  margin: 0.9rem 0 0.3rem;
  color: var(--navy);
}

input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1.5px solid var(--cream-dark);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--cream);
  color: var(--navy);
}

textarea { min-height: 220px; font-family: 'SFMono-Regular', Consolas, monospace; font-size: 0.85rem; line-height: 1.5; }

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--navy);
}

button, .btn {
  display: inline-block;
  background: var(--navy);
  color: var(--cream);
  border: none;
  padding: 0.6rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: 1rem;
  margin-right: 0.5rem;
}

button:hover, .btn:hover { background: var(--navy-light); }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.btn-secondary:hover { background: var(--navy-soft); }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--cream-dark); }
th { color: var(--navy-light); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-pending { background: #ece8b0; color: #6b6323; }
.badge-queued { background: #dce6f2; color: var(--navy); }
.badge-sent { background: #dcefe1; color: var(--success); }
.badge-unsubscribed, .badge-failed { background: #f3dcd9; color: var(--danger); }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  font-weight: 600;
}
.flash-ok { background: #dcefe1; color: var(--success); }
.flash-error { background: #f3dcd9; color: var(--danger); }

.stat-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.stat {
  background: var(--cream);
  border-radius: 10px;
  padding: 0.9rem 1.2rem;
  flex: 1;
  min-width: 120px;
  text-align: center;
}
.stat .num { font-size: 1.6rem; font-weight: 800; color: var(--navy); }
.stat .lbl { font-size: 0.78rem; color: var(--navy-light); text-transform: uppercase; }

.preview-box {
  background: var(--cream);
  border: 1.5px dashed var(--navy-light);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-top: 1rem;
  white-space: pre-wrap;
  font-size: 0.95rem;
}
.preview-box .subject { font-weight: 800; margin-bottom: 0.5rem; }

fieldset { border: 1.5px solid var(--cream-dark); border-radius: 10px; margin-top: 1rem; padding: 0.5rem 1rem 1rem; }
legend { font-weight: 800; padding: 0 0.4rem; color: var(--navy); }