:root {
  color-scheme: dark;
  --background: #131313;
  --surface: #201f1f;
  --surface-lowest: #0e0e0e;
  --surface-low: #1c1b1b;
  --surface-high: rgba(42, 42, 42, 0.72);
  --surface-bright: #393939;
  --text: #e5e2e1;
  --muted: #ccc3d6;
  --subtle: #7e7a85;
  --placeholder: #52525b;
  --outline: #958d9f;
  --outline-ghost: rgba(74, 68, 83, 0.15);
  --outline-focus: rgba(74, 68, 83, 0.42);
  --primary: #5e25b8;
  --primary-soft: rgba(94, 37, 184, 0.12);
  --secondary: #50dbcc;
  --primary-tint: #d3bbff;
  --button-text: #260059;
  --danger-surface: rgba(147, 0, 10, 0.32);
  --danger-text: #ffdad6;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

::selection {
  background: rgba(80, 219, 204, 0.28);
  color: var(--text);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--background);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 80px;
  padding: 0 48px;
  background: rgba(19, 19, 19, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.brand {
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
  letter-spacing: -0.02em;
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.2;
}

.brand-mark {
  background: linear-gradient(90deg, #5e25b8 0%, #50dbcc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-rest {
  color: #a1a1aa;
  font-weight: 700;
}

.page-shell {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px 80px;
  background:
    radial-gradient(circle at 50% -20%, rgba(94, 37, 184, 0.15), transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(80, 219, 204, 0.05), transparent 40%),
    var(--background);
}

.login-stage {
  width: 100%;
  max-width: 480px;
  display: flex;
  justify-content: center;
}

.login-card {
  position: relative;
  width: 100%;
  border-radius: 12px;
  background: var(--surface);
  padding: 40px 40px 36px;
  box-shadow:
    0 0 0 1px rgba(74, 68, 83, 0.12),
    0 24px 48px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.card-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
}

.card-copy {
  margin-bottom: 40px;
  text-align: center;
}

.card-brand-logo {
  display: block;
  margin: 0 auto 24px;
  height: 48px;
  width: auto;
  max-width: min(185px, 80%);
  object-fit: contain;
}

.card-intro {
  margin: 0 auto;
  max-width: 320px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
  text-wrap: balance;
}

.alert {
  margin: -8px 0 20px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--danger-surface);
  color: var(--danger-text);
  font-size: 0.875rem;
  line-height: 1.45;
}

.login-form {
  display: grid;
  gap: 24px;
}

.field {
  display: grid;
  gap: 8px;
}

.field > span {
  color: var(--muted);
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.input-shell {
  position: relative;
  border-radius: 8px;
}

.input-shell:focus-within:has(:focus-visible) {
  outline: 2px solid rgba(80, 219, 204, 0.45);
  outline-offset: 2px;
}

.field-icon {
  position: absolute;
  top: 50%;
  left: 16px;
  width: 20px;
  height: 20px;
  transform: translateY(-50%);
  fill: var(--outline);
  pointer-events: none;
  transition: fill 160ms ease;
}

input,
button {
  border: 0;
  font: inherit;
}

input,
button[type="submit"] {
  width: 100%;
}

.input-shell--password input {
  padding-right: 48px;
}

input {
  padding: 16px 16px 16px 48px;
  border-radius: 8px;
  background: var(--surface-lowest);
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1.4;
  outline: none;
  box-shadow: inset 0 0 0 1px transparent;
  transition:
    box-shadow 180ms ease,
    background 180ms ease;
}

input::placeholder {
  color: var(--placeholder);
}

.input-shell:focus-within input {
  box-shadow:
    inset 0 0 0 1px var(--outline-focus),
    inset 0 0 12px var(--primary-soft);
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--text);
  caret-color: var(--text);
  box-shadow: inset 0 0 0 1000px var(--surface-lowest);
  transition: background-color 9999s ease-out;
}

.input-shell:focus-within input:-webkit-autofill {
  -webkit-text-fill-color: var(--text);
  box-shadow:
    inset 0 0 0 1px var(--outline-focus),
    inset 0 0 12px var(--primary-soft),
    inset 0 0 0 1000px var(--surface-lowest);
}

.input-shell:focus-within .field-icon {
  fill: var(--primary);
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  width: 40px;
  height: 40px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--outline);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  transition: color 160ms ease, background 160ms ease;
}

.password-toggle:hover {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.password-toggle:focus-visible {
  outline: 2px solid rgba(80, 219, 204, 0.55);
  outline-offset: 1px;
}

.password-toggle-icon {
  width: 22px;
  height: 22px;
  pointer-events: none;
}

.password-toggle-icon--hide {
  display: none;
}

.password-toggle[aria-pressed="true"] .password-toggle-icon--show {
  display: none;
}

.password-toggle[aria-pressed="true"] .password-toggle-icon--hide {
  display: block;
}

button[type="submit"] {
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 20px;
  border-radius: 8px;
  background: linear-gradient(90deg, #5e25b8 0%, #50dbcc 100%);
  color: var(--button-text);
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition:
    opacity 180ms ease,
    transform 160ms ease,
    box-shadow 180ms ease;
}

button[type="submit"]:hover {
  opacity: 0.92;
  box-shadow: 0 0 24px rgba(211, 187, 255, 0.22);
}

button[type="submit"]:active {
  transform: scale(0.98);
}

button[type="submit"]:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

.button-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform 180ms ease;
}

button[type="submit"]:hover .button-icon {
  transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) {
  .field-icon,
  input,
  button[type="submit"],
  .password-toggle,
  .button-icon {
    transition: none;
  }

  button[type="submit"]:active,
  button[type="submit"]:hover .button-icon {
    transform: none;
  }
}

@media (max-width: 640px) {
  .topbar {
    min-height: 72px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .brand {
    font-size: 1.1rem;
  }

  .page-shell {
    min-height: auto;
    padding: 40px 20px 56px;
  }

  .login-card {
    padding: 32px 22px 28px;
    border-radius: 12px;
  }

  .card-brand-logo {
    height: 40px;
    margin-bottom: 20px;
  }
}