:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --line: #e2e8f0;
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --ok: #15803d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 8%, rgba(37, 99, 235, 0.18), transparent 32%),
    radial-gradient(circle at 8% 78%, rgba(14, 165, 233, 0.14), transparent 30%),
    var(--bg);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.card {
  width: min(520px, 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 50px -34px rgba(15, 23, 42, 0.55);
  padding: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  display: block;
}

.brand strong {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: #111827;
}

.brand small {
  display: block;
  margin-top: -1px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: #6b7280;
}

h1 {
  margin: 16px 0 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.muted {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

form {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.86rem;
  color: #334155;
  font-weight: 600;
}

input {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
  padding: 11px 12px;
  outline: none;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
}

button {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 11px 14px;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  transition: transform 0.16s ease;
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  min-height: 20px;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.status.error {
  color: var(--danger);
  font-weight: 700;
}

.status.ok {
  color: var(--ok);
  font-weight: 700;
}

.links {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.links a {
  text-decoration: none;
  color: #1d4ed8;
  font-size: 0.88rem;
  font-weight: 600;
}

.links a:hover {
  text-decoration: underline;
}