:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f5f7;
  color: #182029;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: #f3f5f7;
}

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

.access-panel {
  width: min(100%, 440px);
  padding: 32px;
  border: 1px solid #d6dbe0;
  border-top: 4px solid #d63d35;
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 14px 38px rgb(24 32 41 / 10%);
}

.brand {
  color: #b92e28;
  font-size: 13px;
  font-weight: 750;
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 26px;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: 0;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #4d5965;
  font-size: 14px;
  font-weight: 650;
}

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

input,
button {
  min-height: 44px;
  border-radius: 5px;
  font: inherit;
}

input {
  min-width: 0;
  border: 1px solid #aeb7c0;
  padding: 9px 11px;
  background: #ffffff;
  color: #182029;
}

input:focus {
  outline: 3px solid rgb(214 61 53 / 18%);
  border-color: #b92e28;
}

button {
  border: 1px solid #a92722;
  padding: 9px 18px;
  background: #c8342d;
  color: #ffffff;
  cursor: pointer;
  font-weight: 700;
}

button:disabled { opacity: 0.6; cursor: wait; }

.error {
  margin: 12px 0 0;
  color: #a92722;
  font-size: 14px;
}

@media (max-width: 480px) {
  .access-panel { padding: 24px 20px; }
  .input-row { grid-template-columns: 1fr; }
  button { width: 100%; }
}