:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  --bg: #090d12;
  --surface: #111820;
  --surface-raised: #16202a;
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);
  --text: #f4f7fa;
  --muted: #a4b0be;
  --quiet: #718096;
  --accent: #7aa2f7;
  --negative: #fb7185;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 72% 0%, rgba(122, 162, 247, 0.14), transparent 35rem),
    radial-gradient(circle at 18% 92%, rgba(45, 212, 163, 0.07), transparent 28rem),
    var(--bg);
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.login-shell {
  min-height: 100vh;
  padding: 32px 20px;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(100%, 440px);
  padding: 30px;
  display: grid;
  gap: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(22, 32, 42, 0.96), rgba(14, 21, 28, 0.98));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.login-brand img {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
}

.login-brand div {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.login-brand span {
  color: var(--accent);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-brand h1 {
  margin: 0;
  font-size: 21px;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.login-copy {
  display: grid;
  gap: 6px;
}

.login-copy p,
.login-copy small,
.login-error,
footer {
  margin: 0;
}

.login-copy p {
  color: var(--text);
  font-size: 15px;
}

.login-copy small,
footer {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

form {
  display: grid;
  gap: 10px;
}

label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.password-field {
  min-height: 50px;
  display: flex;
  align-items: stretch;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: rgba(9, 13, 18, 0.58);
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.password-field:focus-within {
  border-color: rgba(122, 162, 247, 0.75);
  box-shadow: 0 0 0 4px rgba(122, 162, 247, 0.1);
}

.password-field input {
  min-width: 0;
  flex: 1;
  padding: 0 14px;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
}

.password-field button {
  padding: 0 14px;
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.password-field button:hover {
  color: var(--text);
}

.login-error {
  min-height: 20px;
  color: var(--negative);
  font-size: 12px;
  line-height: 1.5;
}

.login-submit {
  min-height: 50px;
  margin-top: 2px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(122, 162, 247, 0.4);
  border-radius: 12px;
  color: #08101b;
  background: var(--accent);
  font-weight: 780;
  cursor: pointer;
  transition: filter 140ms ease, transform 140ms ease;
}

.login-submit:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

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

.login-submit i {
  font-size: 20px;
  font-style: normal;
}

footer {
  padding-top: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid var(--line);
}

.secure-mark {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #2dd4a3;
  box-shadow: 0 0 0 4px rgba(45, 212, 163, 0.1);
}

@media (max-width: 520px) {
  .login-shell {
    padding: 16px 12px;
  }

  .login-card {
    padding: 24px 20px;
    gap: 24px;
    border-radius: 18px;
  }

  .login-brand h1 {
    font-size: 19px;
  }
}

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