:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #657282;
  --line: #d7dee8;
  --accent: #2563eb;
  --teal: #0f766e;
  --red: #b91c1c;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  display: grid;
  min-height: 100vh;
  margin: 0;
  place-items: center;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 15px;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

.login-shell {
  display: grid;
  grid-template-columns: minmax(230px, 0.8fr) minmax(320px, 1.2fr);
  width: min(760px, calc(100% - 32px));
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 20px 50px rgba(21, 32, 43, 0.12);
}

.login-brand {
  display: flex;
  align-items: center;
  align-self: stretch;
  gap: 13px;
  padding: 36px 30px;
  background: #eaf6f4;
  border-right: 1px solid #cae3df;
}

.brand-mark {
  display: grid;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  place-items: center;
  color: var(--teal);
  background: #ffffff;
  border: 1px solid #bfddd8;
  border-radius: 8px;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.login-brand strong,
.login-brand span {
  display: block;
}

.login-brand strong {
  font-size: 17px;
}

.login-brand span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.login-panel {
  padding: 38px;
}

.login-panel header {
  margin-bottom: 26px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 7px;
  font-size: 28px;
  line-height: 1.15;
}

.login-panel header > p:last-child {
  margin: 0;
  color: var(--muted);
}

form {
  display: grid;
  gap: 17px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: #4b5563;
  font-size: 13px;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  color: var(--text);
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-error {
  min-height: 18px;
  margin: -4px 0 0;
  color: var(--red);
  font-size: 13px;
}

.submit-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 9px 14px;
  color: #ffffff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-weight: 750;
  cursor: pointer;
}

.submit-button:hover {
  background: #1d4ed8;
}

.submit-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

@media (max-width: 680px) {
  .login-shell {
    grid-template-columns: 1fr;
    width: min(430px, calc(100% - 24px));
  }

  .login-brand {
    padding: 20px 24px;
    border-right: none;
    border-bottom: 1px solid #cae3df;
  }

  .login-panel {
    padding: 28px 24px;
  }
}