/* Demo access screen (S44): split layout — an isometric cube field on the left (graphite + red)
   and the sign-in card on the right. Graphite / red to pair with the current theme. */
:root {
  --ink: #0d0d0f;
  --panel: #16171b;
  --panel-2: #1d1f24;
  --line: rgb(255 255 255 / 0.1);
  --text: #f3f3f5;
  --muted: #a9acb4;
  --red: #e20100;
  --red-ink: #ff5a46;
  --field: #101115;
  --radius: 14px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  min-height: 100dvh;
  background: var(--ink);
  color: var(--text);
  font:
    15px/1.5 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
}

/* ---------- Left: the cube field ---------- */
.login-art {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 40px;
  background:
    radial-gradient(120% 90% at 72% 18%, rgb(226 1 0 / 0.16), transparent 55%),
    linear-gradient(160deg, #202329, #0d0d0f 70%);
}
.login-art .cube-field {
  position: absolute;
  inset: 8% -6% -14% 4%;
  width: 104%;
  height: 100%;
  filter: drop-shadow(0 24px 40px rgb(0 0 0 / 0.5));
  opacity: 0.96;
}
.login-brand,
.login-tagline {
  position: relative;
  z-index: 1;
}
.login-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.login-brand .login-logo {
  height: 32px;
  width: auto;
}
.login-brand small {
  display: block;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.login-tagline {
  max-width: 24ch;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
}
.login-tagline span {
  color: var(--red-ink);
}
.login-tagline p {
  margin: 12px 0 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
}

/* ---------- Right: the sign-in card ---------- */
.login-panel {
  display: grid;
  place-items: center;
  padding: 40px 32px;
  background: var(--panel);
  border-left: 1px solid var(--line);
}
.login-card {
  width: min(380px, 100%);
}
.login-card h1 {
  margin: 0 0 6px;
  font-size: 24px;
}
.login-card .sub {
  margin: 0 0 26px;
  color: var(--muted);
}
.login-field {
  display: block;
  margin-bottom: 16px;
}
.login-field span {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
.login-field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--field);
  color: var(--text);
  font-size: 15px;
  transition:
    border-color var(--t, 140ms) ease,
    box-shadow var(--t, 140ms) ease;
}
.login-field input:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgb(226 1 0 / 0.22);
}
.login-error {
  min-height: 20px;
  margin: 2px 0 14px;
  color: var(--red-ink);
  font-size: 13px;
  font-weight: 600;
}
.login-error:empty {
  margin: 0;
  min-height: 0;
}
.login-submit {
  width: 100%;
  padding: 13px;
  border: 0;
  border-radius: 10px;
  background: var(--red);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--t, 140ms) ease,
    transform var(--t, 140ms) ease;
}
.login-submit:hover {
  background: #c40100;
}
.login-submit:active {
  transform: translateY(1px);
}
.login-submit:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.login-hint {
  margin: 18px 0 0;
  padding: 10px 12px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  font-size: 12.5px;
  color: var(--muted);
}
.login-hint b {
  color: var(--text);
}
.login-note {
  margin: 18px 0 0;
  font-size: 11.5px;
  color: #71757d;
}

/* ---------- Narrow: stack, art becomes a short header ---------- */
@media (max-width: 860px) {
  body {
    grid-template-columns: 1fr;
  }
  .login-art {
    min-height: 230px;
    padding: 24px;
  }
  .login-art .cube-field {
    inset: 10% 0 -20% 0;
    width: 100%;
    opacity: 0.8;
  }
  .login-tagline {
    font-size: 20px;
  }
  .login-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}
@media (max-width: 420px) {
  .login-art {
    display: none;
  }
}