.login-screen {
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  place-items: center;
  margin: 0;
  padding: var(--sp-6);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
}

.login-frame {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, .96fr);
  width: min(100%, 1000px);
  min-height: 590px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-xl);
}

.login-brand {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  overflow: hidden;
  padding: clamp(var(--sp-8), 5vw, var(--sp-12));
  background: var(--surface-inverse);
  color: var(--ink-inverse);
  isolation: isolate;
}

.login-brand::before,
.login-brand::after {
  position: absolute;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--ink-inverse) 14%, transparent);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.login-brand::before {
  width: 430px;
  aspect-ratio: 1;
  right: -180px;
  bottom: -180px;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 40%, transparent), transparent 68%);
}

.login-brand::after {
  width: 300px;
  aspect-ratio: 1;
  right: -110px;
  bottom: -110px;
}

.login-logo {
  display: block;
  width: min(100%, 280px);
  height: auto;
  object-fit: contain;
  object-position: left center;
}

.login-brand-copy {
  max-width: 410px;
  margin-top: auto;
  padding-top: var(--sp-12);
}

.login-eyebrow {
  margin: 0 0 var(--sp-3);
  color: var(--ink-3);
  font-size: var(--text-xs);
  font-weight: 750;
  letter-spacing: .12em;
  line-height: 1.4;
}

.login-brand .login-eyebrow { color: color-mix(in srgb, var(--ink-inverse) 72%, transparent); }

.login-brand-copy h1 {
  margin: 0;
  max-width: 12ch;
  color: var(--ink-inverse);
  font-size: clamp(var(--text-2xl), 3.3vw, var(--text-3xl));
  font-weight: 680;
  letter-spacing: -.035em;
  line-height: 1.12;
}

.login-brand-copy > p:last-child {
  max-width: 34ch;
  margin: var(--sp-4) 0 0;
  color: color-mix(in srgb, var(--ink-inverse) 78%, transparent);
  font-size: var(--text-base);
  line-height: 1.6;
}

.login-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(var(--sp-8), 5vw, var(--sp-12));
  background: var(--surface);
}

.login-panel-heading { margin-bottom: var(--sp-8); }

.login-panel-heading .login-eyebrow { color: var(--primary-ink); }

.login-panel-heading h2 {
  margin: 0;
  color: var(--ink-brand);
  font-size: clamp(var(--text-2xl), 2.4vw, var(--text-3xl));
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.16;
}

.login-panel-heading > p:last-child {
  max-width: 36ch;
  margin: var(--sp-3) 0 0;
  color: var(--ink-2);
  font-size: var(--text-base);
  line-height: 1.55;
}

.login-field label {
  display: block;
  margin-bottom: var(--sp-2);
  color: var(--ink);
  font-size: var(--text-sm);
  font-weight: 650;
}

.login-field input {
  display: block;
  width: 100%;
  min-height: 50px;
  padding: 0 var(--sp-4);
  border: 1px solid var(--control-line);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: var(--text-base);
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}

.login-field input:focus-visible {
  border-color: var(--primary);
  outline: none;
  box-shadow: var(--focus-ring);
}

.login-submit {
  display: inline-flex;
  width: 100%;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  margin-top: var(--sp-5);
  padding: 0 var(--sp-5);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: var(--action-primary-bg);
  color: var(--action-primary-ink);
  font: inherit;
  font-size: var(--text-base);
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out), transform var(--dur-1) var(--ease-out);
}

.login-submit:hover { background: var(--action-primary-hover); box-shadow: var(--shadow-md); }
.login-submit:active { transform: translateY(1px); }
.login-submit:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.login-error {
  margin: 0 0 var(--sp-5);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  color: var(--danger-ink);
  font-size: var(--text-sm);
  font-weight: 650;
  line-height: 1.45;
}

.login-footnote {
  margin: var(--sp-8) 0 0;
  color: var(--ink-3);
  font-size: var(--text-xs);
  line-height: 1.5;
}

@media (max-width: 680px) {
  .login-screen { place-items: start center; padding: var(--sp-4); }
  .login-frame {
    grid-template-columns: minmax(0, 1fr);
    width: min(100%, 460px);
    min-height: 0;
    margin-block: auto;
    border-radius: var(--radius-lg);
  }
  .login-brand { min-height: 150px; padding: var(--sp-6); }
  .login-logo { width: min(68%, 220px); }
  .login-brand-copy { padding-top: var(--sp-6); }
  .login-brand-copy .login-eyebrow { margin-bottom: var(--sp-2); }
  .login-brand-copy h1 { max-width: 22ch; font-size: var(--text-xl); }
  .login-brand-copy > p:last-child { margin-top: var(--sp-2); font-size: var(--text-sm); }
  .login-panel { padding: var(--sp-6); }
  .login-panel-heading { margin-bottom: var(--sp-6); }
}

@media (prefers-reduced-motion: reduce) {
  .login-field input,
  .login-submit { transition: none; }
}