:root {
  color-scheme: dark;
  --page: #05080b;
  --panel: #0d1319;
  --panel-soft: #111a22;
  --line: #27323d;
  --text: #f4f6f8;
  --muted: #929dab;
  --accent: #ff4f2e;
  --cyan: #42d3ff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, rgba(66, 211, 255, .12), transparent 28rem),
    radial-gradient(circle at 88% 90%, rgba(255, 79, 46, .12), transparent 26rem),
    var(--page);
}

button, input { font: inherit; }

.login-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(420px, .85fr);
  min-height: 100vh;
}

.brand-panel,
.login-panel { padding: clamp(2rem, 5vw, 5.5rem); }

.brand-panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  width: fit-content;
  color: var(--text);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .18em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  letter-spacing: -.08em;
}

.brand-copy { max-width: 48rem; margin: auto 0; }
.eyebrow { color: var(--muted); font-size: .75rem; font-weight: 900; letter-spacing: .16em; }
.eyebrow.accent { color: var(--accent); }

h1 {
  max-width: 12ch;
  margin: 1rem 0 1.4rem;
  font-size: clamp(3rem, 6vw, 6.8rem);
  line-height: .94;
  letter-spacing: -.055em;
}

.brand-copy p {
  max-width: 42rem;
  color: #aab4c1;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.7;
}

.portal-points {
  display: flex;
  gap: clamp(1rem, 3vw, 3rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.portal-points li { color: #bec6cf; font-size: .88rem; font-weight: 700; }
.portal-points span { display: block; margin-bottom: .45rem; color: var(--cyan); font-size: .7rem; letter-spacing: .12em; }

.login-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(8, 12, 16, .74);
}

.login-card { width: min(100%, 32rem); margin: auto; }
h2 { margin: .85rem 0 .5rem; font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -.04em; }
.intro { margin: 0 0 2.2rem; color: var(--muted); line-height: 1.6; }

form { display: grid; gap: 1.1rem; }
label { display: grid; gap: .55rem; color: #c2cad3; font-size: .82rem; font-weight: 800; }

input {
  width: 100%;
  height: 3.7rem;
  padding: 0 1rem;
  border: 1px solid #35414c;
  border-radius: .55rem;
  outline: 0;
  color: var(--text);
  background: var(--panel-soft);
}

input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(66, 211, 255, .13); }

.sign-in-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 3.8rem;
  margin-top: .4rem;
  padding: 0 1.25rem;
  border: 0;
  border-radius: .55rem;
  color: #fff;
  background: var(--accent);
  font-weight: 900;
  cursor: pointer;
}

.sign-in-button:disabled { opacity: .65; cursor: wait; }
.form-error { margin: 0; color: #ff8a72; font-size: .85rem; }

.login-help {
  margin-top: 2rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: rgba(17, 26, 34, .7);
}

.login-help strong { font-size: .85rem; }
.login-help p { margin: .3rem 0 0; color: var(--muted); font-size: .82rem; line-height: 1.5; }
.login-panel footer { width: min(100%, 32rem); margin: 2rem auto 0; color: #65717e; font-size: .72rem; }

@media (max-width: 850px) {
  .login-shell { grid-template-columns: 1fr; }
  .brand-panel { min-height: 42vh; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand-copy { margin: 4rem 0; }
  h1 { font-size: clamp(3rem, 12vw, 5rem); }
  .portal-points { flex-wrap: wrap; }
  .login-panel { min-height: 58vh; }
}

@media (max-width: 520px) {
  .brand-panel, .login-panel { padding: 1.5rem; }
  .portal-points { display: grid; grid-template-columns: 1fr; }
}