/* Login + register screens — terminal session. */

.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem) 1rem;
}

.auth-shell {
  width: 100%;
  max-width: 500px;
  padding: 1.25rem 1.25rem 1rem;
}

/* Kept for the standalone error page, which uses the original single-column shell. */
.auth-card {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
}

.auth-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  padding: 0 0 0.85rem;
  border-bottom: 1px solid var(--border);
}

.auth-head img {
  width: 24px;
  height: 24px;
}

.auth-head h1 {
  font-size: 1rem;
  margin: 0;
}

.auth-head h1::before {
  content: "$ ";
  color: var(--text-dim);
}

.auth-head h1 span {
  color: var(--text-dim);
}

/* Blinking cursor at the end of the prompt line. */
.auth-head h1 span::after {
  content: "_";
  animation: blink 1.06s steps(1) infinite;
}

.auth-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem 0.15rem 1.2rem;
}

.auth-content {
  min-width: 0;
}

.auth-kicker,
.clock-label {
  margin: 0 0 0.5rem;
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.auth-kicker::before,
.clock-label::before {
  content: "// ";
  color: var(--border);
}

.auth-content h2 {
  margin: 0;
  color: var(--text);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}

.auth-content h2::before {
  content: none;
}

.auth-sub {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0.55rem 0 1.4rem;
}

.auth-sub::before {
  content: "# ";
}

.auth-clock {
  min-width: 0;
  order: -1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0 0 1rem;
  border-bottom: 1px solid var(--border);
}

button.big {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 0.95rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border);
  background: var(--bg-inset);
}

.auth-form-panel button.big:hover:not(:disabled),
.auth-form-panel button.big:focus-visible {
  background: var(--accent);
  color: var(--bg);
  text-shadow: none;
  outline: none;
}

.auth-form-panel button.big:hover:not(:disabled)::before,
.auth-form-panel button.big:hover:not(:disabled)::after,
.auth-form-panel button.big:focus-visible::before,
.auth-form-panel button.big:focus-visible::after {
  color: var(--bg);
}

.auth-form-panel #login-button:not(:disabled) {
  background: var(--accent);
  color: var(--bg);
  text-shadow: none;
  box-shadow: 0 0 0.55rem var(--accent-glow);
}

.auth-form-panel #login-button:not(:disabled)::before,
.auth-form-panel #login-button:not(:disabled)::after {
  color: var(--bg);
}

/* Authenticator type menu keeps hardware/software trust paths behind one control. */
.credential-picker {
  position: relative;
  width: min(100%, 28rem);
}

.credential-picker > label {
  display: block;
  margin-bottom: 0.35rem;
}

.credential-picker-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  width: 100%;
  padding: 0.6rem 0.8rem;
  color: var(--text);
  text-align: left;
  background: var(--bg-inset);
  border: 1px solid var(--border);
}

.credential-picker-trigger::before,
.credential-picker-trigger::after {
  content: none;
}

.credential-picker-trigger:hover:not(:disabled),
.credential-picker-trigger:focus-visible,
.credential-picker-trigger[aria-expanded="true"] {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0.55rem var(--accent-glow);
  outline: 1px dashed var(--accent);
  outline-offset: 1px;
}

.credential-picker-trigger:disabled {
  color: var(--text-dim);
}

.credential-picker-chevron {
  color: var(--text-dim);
}

.credential-picker-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 0.25rem);
  right: 0;
  left: 0;
  padding: 0.25rem 0;
  background: var(--bg-raised);
  border: 1px solid var(--accent);
  box-shadow: 0 0 0 1px var(--bg);
}

.credential-picker-option {
  position: relative;
  padding: 0.55rem 0.7rem 0.55rem 1.5rem;
  color: var(--text-dim);
  cursor: pointer;
  outline: none;
}

.credential-picker-option::before {
  content: "  ";
  position: absolute;
  left: 0.65rem;
  color: var(--accent);
}

.credential-picker-option:hover,
.credential-picker-option:focus-visible {
  color: var(--bg);
  background: var(--accent);
  text-shadow: none;
}

.credential-picker-option[aria-disabled="true"] {
  color: var(--border);
  cursor: not-allowed;
}

.credential-picker-option[aria-disabled="true"]:hover {
  color: var(--border);
  background: transparent;
}

.credential-picker-option .path-title {
  font-family: var(--mono);
  display: block;
  font-weight: 700;
}

.credential-picker-option .path-desc {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.credential-picker-option .path-desc::before {
  content: none;
}

.credential-picker-option:hover .path-desc,
.credential-picker-option:focus-visible .path-desc {
  color: var(--bg);
}

.footer-note {
  margin: 0;
  padding: 0.75rem 0.15rem 0;
  border-top: 1px dashed var(--border);
  color: var(--text-dim);
  font-size: 0.78rem;
  font-family: var(--mono);
  text-align: center;
}

.footer-note::before {
  content: "# ";
}

@media (max-width: 620px) {
  .auth-grid {
    gap: 1.35rem;
  }

  .auth-clock {
    grid-template-columns: 1fr auto;
    gap: 0.6rem;
  }

  .auth-clock .clock-label {
    grid-column: 1 / -1;
    margin-bottom: 0;
  }
}

/* Login-manager presentation: an offset CRT grid behind the auth window. */
body {
  background-color: var(--bg);
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--accent) 7%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent) 7%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      color-mix(in srgb, var(--accent) 13%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent) 13%, transparent) 1px,
      transparent 1px
    ),
    radial-gradient(
      ellipse at 50% 38%,
      color-mix(in srgb, var(--accent) 9%, transparent),
      transparent 44%
    ),
    linear-gradient(
      90deg,
      transparent 0,
      rgba(0, 0, 0, 0.2) 14%,
      transparent 24%,
      transparent 76%,
      rgba(0, 0, 0, 0.2) 86%,
      transparent 100%
    ),
    radial-gradient(
      ellipse at center,
      transparent 36%,
      rgba(0, 0, 0, 0.34) 100%
    );
  background-size:
    2.5rem 2.5rem,
    2.5rem 2.5rem,
    10rem 10rem,
    10rem 10rem,
    100% 100%,
    100% 100%,
    100% 100%;
  background-position:
    0 0,
    0 0,
    1.25rem 1.25rem,
    1.25rem 1.25rem,
    0 0,
    0 0,
    0 0;
}

/* Keep the global CRT treatment, but add a soft tube vignette to auth pages. */
body::after {
  background:
    repeating-linear-gradient(
      0deg,
      var(--scanline) 0 1px,
      transparent 1px 4px
    ),
    radial-gradient(
      ellipse at center,
      transparent 46%,
      rgba(0, 0, 0, 0.4) 100%
    );
  opacity: 0.42;
}

.screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
}

.auth-shell {
  position: relative;
  width: min(88vw, 44rem);
  max-width: none;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.auth-clock {
  position: absolute;
  bottom: calc(100% + 1.5rem);
  left: 50%;
  width: 100%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.auth-clock .clock-label {
  margin: 0;
  font-size: 0.7rem;
}

.auth-clock .binary-clock {
  justify-self: center;
  gap: 0.9rem;
}

.auth-clock .binary-clock-date {
  display: block;
  margin: 0;
  color: var(--text-dim);
  font-size: 0.72rem;
  white-space: nowrap;
}

.auth-clock .binary-group {
  gap: 0.7rem;
}

.auth-clock .binary-group-label {
  font-size: 0.8rem;
}

.auth-clock .binary-column {
  grid-template-columns: repeat(2, 1.35rem);
  grid-template-rows: repeat(3, 1.35rem);
  gap: 0.45rem 0.5rem;
}

.auth-clock .binary-cell {
  width: 1.35rem;
  height: 1.35rem;
}

.auth-clock .binary-clock-time {
  justify-self: end;
  margin: 0;
  font-size: 0.72rem;
}

.auth-window {
  display: grid;
  grid-template-columns: minmax(10rem, 0.72fr) minmax(0, 1.28fr);
  min-height: 15rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-raised) 94%, var(--accent) 6%);
  box-shadow:
    0 0 0 1px var(--bg-inset),
    0 0 0.6rem var(--accent-glow),
    0 1.2rem 3rem rgba(0, 0, 0, 0.24);
}

.auth-brand-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.25rem;
  border-right: 1px solid var(--border);
  text-align: center;
}

.auth-brand-panel img {
  display: block;
  width: min(11rem, 88%);
  height: auto;
  filter: drop-shadow(0 0 0.25rem var(--accent-glow));
}

.auth-brand-panel h1 {
  margin: 0;
  font-size: 1rem;
}

.auth-brand-panel h1::before {
  content: none;
}

.auth-brand-panel p {
  margin: -0.35rem 0 0;
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.auth-form-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: 1.4rem clamp(1rem, 4vw, 2rem);
}

.auth-form-panel h2 {
  margin: 0 0 1.25rem;
}

.auth-form-panel .auth-kicker {
  margin-bottom: 0.45rem;
}

.auth-form-panel .auth-sub {
  max-width: 26rem;
}

.auth-form-panel .status-line {
  min-height: 1.55em;
}

.auth-form-panel button.big {
  max-width: 24rem;
}

.footer-note {
  margin-top: 0.7rem;
  border-top: 0;
  padding: 0;
  text-align: center;
}

@media (max-width: 620px) {
  .auth-shell {
    width: min(100%, 34rem);
  }

  .auth-clock {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .auth-window {
    grid-template-columns: 1fr;
  }

  .auth-brand-panel {
    min-height: 5rem;
    flex-direction: row;
    justify-content: flex-start;
    padding: 0.7rem 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    text-align: left;
  }

  .auth-brand-panel img {
    width: 4.25rem;
  }

  .auth-brand-panel p {
    margin: 0 0 0 0.15rem;
  }

  .auth-form-panel {
    padding: 1.1rem 1rem 1rem;
  }
}