:root {
  --bg: #e8eef4;
  --bg-accent: #d5e2ec;
  --card: #f7fafc;
  --ink: #1a2b3c;
  --muted: #5a6f82;
  --line: #c5d3df;
  --accent: #0d6e6e;
  --accent-hover: #0a5858;
  --danger: #9b2c2c;
  --shadow: 0 12px 40px rgba(26, 43, 60, 0.08);
  font-family: "Segoe UI", "Candara", "Trebuchet MS", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #cfe0ea 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #d9ebe4 0%, transparent 50%),
    linear-gradient(160deg, var(--bg), var(--bg-accent));
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(560px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.login-card { width: min(400px, 100%); }

h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

h2 { margin: 0 0 8px; font-size: 1.1rem; }

.muted { color: var(--muted); margin: 0 0 16px; font-size: 0.95rem; }

.sms-meta {
  margin: -6px 0 0;
  font-size: 0.85rem;
}

.top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.stack { display: grid; gap: 14px; }

label, .label-row {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

textarea { resize: vertical; min-height: 110px; }

button {
  border: none;
  border-radius: 10px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.6; cursor: wait; }

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

button.ghost:hover {
  background: #eef3f7;
  color: var(--ink);
}

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

.chip {
  background: #e7f1f1;
  color: var(--accent);
  border: 1px solid #b7d4d4;
  padding: 8px 12px;
  font-size: 0.9rem;
}

.chip:hover { background: #d5e8e8; }

.error { color: var(--danger); margin: 0 0 12px; }

.result {
  margin-top: 18px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.result.ok { border-color: #9dceb0; background: #f1faf4; }
.result.fail { border-color: #e2b4b4; background: #fdf4f4; }
.result.hidden { display: none; }

.log-card {
  margin-top: 20px;
  width: min(560px, 100%);
}

.log-list {
  margin-top: 10px;
  max-height: 320px;
  overflow-y: auto;
}

.log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.log-table th, .log-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.log-table th { color: var(--muted); font-weight: 600; }

.log-text {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-ok { background: #e3f6ea; color: #1e7a45; }
.badge-fail { background: #fce8e8; color: #a02c2c; }

@media (max-width: 520px) {
  .top { flex-direction: column; }
  body { padding: 16px; }
  .card { padding: 20px; }
}