:root {
  color-scheme: dark;
  --bg: #070b13;
  --panel: #0d1423;
  --line: rgba(117, 145, 185, 0.24);
  --text: #eef6ff;
  --muted: #8ea1bb;
  --cyan: #39d7ff;
  --blue: #5aa7ff;
  --red: #ff7b8a;
  font-family: Inter, "Fira Sans", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(57, 215, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 80% 0%, rgba(90, 167, 255, 0.12), transparent 24rem),
    linear-gradient(135deg, #050914 0%, #0a1020 48%, #07101a 100%);
}

button,
input {
  font: inherit;
}

.loginShell {
  width: min(1040px, calc(100vw - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 420px;
  gap: 40px;
  align-items: center;
  padding: 40px 0;
}

.eyebrow,
.panelLabel {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(42px, 7vw, 76px);
}

h2 {
  font-size: 28px;
}

.lead {
  max-width: 540px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.signals {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.signals span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(13, 20, 35, 0.68);
  color: #cbd9eb;
  font-size: 13px;
}

.loginCard {
  display: grid;
  gap: 16px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(17, 27, 45, 0.94), rgba(9, 15, 27, 0.94));
  box-shadow: 0 22px 90px rgba(0, 0, 0, 0.44);
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #22324b;
  border-radius: 7px;
  background: rgba(6, 10, 18, 0.74);
  color: var(--text);
}

input:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(57, 215, 255, 0.34);
  outline-offset: 2px;
}

button {
  min-height: 44px;
  border: 1px solid rgba(57, 215, 255, 0.64);
  border-radius: 7px;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.92), rgba(8, 145, 178, 0.72));
  color: #ffffff;
  cursor: pointer;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

button:hover:not(:disabled) {
  border-color: rgba(57, 215, 255, 0.96);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.98), rgba(6, 182, 212, 0.78));
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

#status {
  min-height: 20px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

#status.error {
  color: var(--red);
}

@media (max-width: 840px) {
  .loginShell {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .intro {
    padding-top: 12px;
  }
}

@media (max-width: 520px) {
  .loginShell {
    width: min(100vw - 20px, 1040px);
    padding: 24px 0;
  }

  .loginCard {
    padding: 20px;
  }
}

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