:root {
  --bg: #0e1412;
  --panel: #15201c;
  --line: #24332d;
  --text: #e7efea;
  --muted: #8fa399;
  --accent: #1f9e6c;
  --accent-hover: #178a5c;
  --danger: #c44b3c;
  --warn: #c9a227;
  --ok: #2fbf71;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, #1a3d30 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, #243028 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-box {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: -0.02em;
}

.sub { margin: 0 0 20px; color: var(--muted); font-size: 0.9rem; }

header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(21, 32, 28, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 5;
}

header h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 16px 48px;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
}

label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 6px;
}

input, textarea, select {
  width: 100%;
  background: #0f1815;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  margin-bottom: 12px;
}

textarea { resize: vertical; min-height: 90px; }

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: var(--accent-hover); }
button.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  font-weight: 500;
}
button.ghost:hover { border-color: var(--muted); background: #1a2621; }
button.danger { background: var(--danger); }
button.small { padding: 6px 10px; font-size: 0.8rem; }

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.row.between { justify-content: space-between; align-items: center; }
.grow { flex: 1; min-width: 160px; }
.align-end { display: flex; align-items: flex-end; padding-bottom: 12px; }

.muted { color: var(--muted); font-size: 0.85rem; margin: 4px 0 0; }
.error { color: #f08070; font-size: 0.85rem; min-height: 1.2em; }

.list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}
.list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}
.list .meta { color: var(--muted); font-size: 0.8rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-size: 0.75rem; font-weight: 500; }
td.msg { max-width: 260px; white-space: pre-wrap; word-break: break-word; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
}
.PENDING { color: var(--warn); }
.SENDING { color: var(--accent); }
.SENT { color: var(--ok); }
.ERROR { color: #f08070; }

.log {
  background: #0f1815;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  max-height: 220px;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  line-height: 1.45;
}
.log .ok { color: var(--ok); }
.log .error { color: #f08070; }
.log .warn { color: var(--warn); }
.log .info { color: var(--muted); }

@media (max-width: 640px) {
  header { flex-direction: column; }
  .align-end { width: 100%; padding-bottom: 0; }
  .align-end button { width: 100%; }
}