:root {
  color-scheme: dark;
  --background: #0f172a;
  --surface: #111c31;
  --surface-strong: #0a1222;
  --foreground: #ffffff;
  --muted: #a9b7cc;
  --border: #64748b;
  --secure: #047857;
  --secure-bright: #34d399;
  --focus: #22d3ee;
  --error: #fca5a5;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--background);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  color: var(--foreground);
  background:
    linear-gradient(90deg, rgba(34, 211, 238, 0.045) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--background);
}

button,
input {
  font: inherit;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding: 32px 16px;
}

.login-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-top: 4px solid var(--secure);
  background: var(--surface);
  box-shadow: 0 24px 64px rgba(2, 6, 23, 0.55);
  padding: 40px;
}

.login-card::after {
  position: absolute;
  top: -1px;
  right: 0;
  width: 72px;
  height: 4px;
  background: var(--focus);
  content: "";
}

.login-eyebrow {
  margin: 0 0 16px;
  color: var(--focus);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 9ch;
  margin: 0;
  font-size: clamp(36px, 10vw, 52px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.login-copy {
  margin: 20px 0 32px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

form {
  display: grid;
  gap: 8px;
}

label {
  color: var(--foreground);
  font-size: 14px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 0;
  outline: 0;
  background: var(--surface-strong);
  color: var(--foreground);
  padding: 12px 14px;
  font-size: 17px;
}

input:hover {
  border-color: #526580;
}

input:focus-visible {
  border-color: var(--focus);
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.login-error {
  min-height: 24px;
  margin: 2px 0 0;
  color: var(--error);
  font-size: 14px;
  line-height: 1.5;
}

button {
  min-height: 48px;
  border: 1px solid var(--secure-bright);
  border-radius: 0;
  background: var(--secure);
  color: var(--foreground);
  cursor: pointer;
  margin-top: 8px;
  padding: 12px 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

button:hover:not(:disabled) {
  background: #065f46;
}

button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

button:disabled {
  cursor: wait;
  opacity: 0.62;
}

@media (max-width: 420px) {
  .login-shell {
    align-items: start;
    padding: 16px;
  }

  .login-card {
    margin-top: 8vh;
    padding: 32px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}