@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("ibm-plex-sans.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("ibm-plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("ibm-plex-mono-600.woff2") format("woff2");
}

:root {
  --bg: #14181A;
  --surface: #1B2023;
  --ink: #EDEFEF;
  --muted: #9BA3A8;
  --border: #2B3236;
  --accent: #3FB393;
  --accent-tint: #16332C;
  --danger: #E5484D;
  --danger-tint: #3B1A1B;
  --radius: 3px;
  --sans: "IBM Plex Sans", "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { background: var(--bg); color-scheme: dark; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
h1, h2, h3 { text-wrap: balance; margin: 0; font-weight: 700; }
code, .mono { font-family: var(--mono); }

.auth-shell {
  width: 100%;
  max-width: 720px;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.brand-header {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-header .badge { width: 40px; height: 40px; border-radius: 22%; flex: none; }
.brand-header .brand-name { font-size: 1.15rem; font-weight: 700; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.auth-card {
  flex: 1 1 260px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
}
.auth-card form {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.auth-card form button { margin-top: auto; }

h2.card-title {
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
}
h2.card-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 6px;
}
input[type="text"], input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.98rem;
}
input[type="text"]:focus, input[type="password"]:focus {
  outline: none;
  border-color: var(--accent);
}
input#otp-code, input[name="code"][maxlength="6"] {
  font-family: var(--mono);
  letter-spacing: 0.4em;
  text-align: center;
  font-size: 1.2rem;
}

button {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--accent-tint);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
button:disabled:hover { border-color: transparent; }

.msg {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.4;
  margin: 0 0 14px;
}
.msg.hint { color: var(--muted); }

.field-error {
  color: var(--danger);
  font-family: var(--mono);
  font-size: 0.82rem;
  margin: -6px 0 14px;
}

.card-divider {
  width: 1px;
  align-self: stretch;
  background: var(--border);
  display: none;
}
@media (min-width: 620px) {
  .card-divider { display: block; }
}

footer.page {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  padding: 16px;
  color: var(--muted);
  font-size: 0.78rem;
}
footer.page a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }