:root {
  --panel-border: rgba(255, 255, 255, 0.10);
  --text: #f5f5f5;
  --muted: #f0c7c7;
  --danger: #ffb0b0;
  --focus: rgba(0, 210, 255, 0.18);
  --shadow: rgba(0, 0, 0, 0.62);
  --reactor-blue: #00d2ff;
  --reactor-dark: #142c4b;
}

* {
  box-sizing: border-box;
}

html, body {
  position: relative;
  margin: 0;
  padding: 0;
  min-height: 100%;
  width: 100%;
}

body {
  position: relative;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  overflow-x: hidden;
}

.bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(40, 0, 0, 0.18), rgba(10, 0, 0, 0.40)),
    url("../assets/red-bg.jpg") center center / cover no-repeat;
}

.bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, rgba(255, 80, 80, 0.10) 0%, rgba(120, 0, 0, 0.08) 28%, rgba(0,0,0,0.18) 64%, rgba(0,0,0,0.36) 100%);
  mix-blend-mode: screen;
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, rgba(0,0,0,0.06) 0 18%, rgba(0,0,0,0.26) 52%, rgba(0,0,0,0.58) 100%);
}

.reactor-stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.arc-reactor {
  position: relative;
  width: min(72vw, 560px);
  aspect-ratio: 1 / 1;
  display: flex;
  justify-content: center;
  align-items: center;
  filter:
    drop-shadow(0 0 30px rgba(0, 210, 255, 0.25))
    drop-shadow(0 0 60px rgba(0, 210, 255, 0.14));
}

.reactor-outer {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 5px solid var(--reactor-dark);
  box-shadow:
    0 0 18px var(--reactor-blue),
    inset 0 0 18px var(--reactor-blue);
}

.reactor-outer::before,
.reactor-outer::after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 50%;
  border: 1px solid rgba(0, 210, 255, 0.18);
}

.reactor-outer::after {
  inset: 34px;
  border-color: rgba(255, 255, 255, 0.10);
}

.reactor-mid {
  position: absolute;
  width: 84%;
  height: 84%;
  border-radius: 50%;
  border: 7px dashed var(--reactor-blue);
  animation: spin 12s linear infinite;
  box-shadow: 0 0 24px rgba(0, 170, 255, 0.55);
}

.reactor-core {
  position: absolute;
  width: 46%;
  height: 46%;
  background: radial-gradient(circle, #ffffff 10%, #7cecff 42%, #00d2ff 66%, #004466 100%);
  border-radius: 50%;
  box-shadow:
    0 0 48px #00d2ff,
    inset 0 0 34px #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.core-glow {
  position: absolute;
  width: 132%;
  height: 132%;
  border-radius: 50%;
  background: #00d2ff;
  opacity: 0.28;
  filter: blur(24px);
  animation: pulse 2.2s ease-in-out infinite;
}

.core-shards {
  position: absolute;
  inset: 0;
}

.core-shards span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 118px;
  background: rgba(255, 255, 255, 0.92);
  transform-origin: center center;
  transform: translate(-50%, -50%) rotate(calc(60deg * var(--i)));
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  opacity: 0.72;
  box-shadow: 0 0 12px rgba(255,255,255,0.38);
}

.core-shards span:nth-child(1) { --i: 1; }
.core-shards span:nth-child(2) { --i: 2; }
.core-shards span:nth-child(3) { --i: 3; }
.core-shards span:nth-child(4) { --i: 4; }
.core-shards span:nth-child(5) { --i: 5; }
.core-shards span:nth-child(6) { --i: 6; }

.reactor-lines {
  position: absolute;
  width: 100%;
  height: 100%;
}

.reactor-lines span {
  position: absolute;
  top: 0;
  left: calc(50% - 2px);
  width: 4px;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 210, 255, 0.35) 18%,
    rgba(0, 210, 255, 0.70) 50%,
    rgba(0, 210, 255, 0.35) 82%,
    transparent 100%
  );
  opacity: 0.42;
  transform-origin: center center;
  transform: rotate(calc(45deg * var(--line)));
}

.reactor-lines span:nth-child(1) { --line: 1; }
.reactor-lines span:nth-child(2) { --line: 2; }
.reactor-lines span:nth-child(3) { --line: 3; }
.reactor-lines span:nth-child(4) { --line: 4; }

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative;
  z-index: 2;
}

.auth-card {
  width: min(560px, 88vw);
  background: rgba(20, 4, 6, 0.12);
  border: 1px solid rgba(255, 160, 160, 0.10);
  border-radius: 18px;
  padding: 30px 28px;
  position: relative;
  z-index: 3;
  backdrop-filter: blur(1.5px) saturate(108%);
  -webkit-backdrop-filter: blur(1.5px) saturate(108%);
  box-shadow:
    0 24px 80px var(--shadow),
    inset 0 1px 0 rgba(255,255,255,0.05),
    0 0 24px rgba(255, 60, 60, 0.04);
  text-align: center;
}

.auth-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), transparent 24%);
  pointer-events: none;
}

.auth-card h1 {
  margin: 0;
  text-align: center;
  font-size: 30px;
  letter-spacing: 5px;
  color: #eafcff;
  text-shadow: 0 0 16px rgba(0, 210, 255, 0.22);
}

.subtitle {
  margin: 8px 0 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  text-shadow: 0 1px 4px rgba(0,0,0,0.35);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  text-align: left;
}

.field.hidden,
.field-grid.hidden {
  display: none;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
}

.field label {
  font-size: 14px;
  color: #f2d7d7;
  letter-spacing: 0.3px;
}

.field input,
.field .recover-copy {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0, 0, 0, 0.26);
  color: #f5f5f5;
  padding: 13px 14px;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
}

.field input::placeholder {
  color: rgba(255,255,255,0.45);
}

.field input:focus {
  border-color: rgba(0, 210, 255, 0.45);
  box-shadow:
    0 0 0 3px var(--focus),
    inset 0 1px 0 rgba(255,255,255,0.03);
}

.recover-copy {
  color: #f0dede;
  line-height: 1.45;
  font-size: 14px;
}

.action-row {
  display: flex;
  width: 100%;
  gap: 12px;
  margin-top: 6px;
}

.submit,
.secondary-submit,
.forgot-password-link {
  appearance: none;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease, box-shadow 120ms ease;
}

.submit,
.secondary-submit {
  flex: 1 1 0;
  padding: 13px 14px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.submit {
  color: #05131a;
  background: linear-gradient(180deg, #8fe7ff, #45c9f1);
  box-shadow: 0 10px 26px rgba(0, 180, 255, 0.18);
}

.submit:hover,
.secondary-submit:hover,
.forgot-password-link:hover {
  transform: translateY(-1px);
}

.submit:active,
.secondary-submit:active,
.forgot-password-link:active {
  transform: translateY(0);
}

.secondary-submit {
  color: #eef9ff;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}

.forgot-password-link {
  margin-top: 2px;
  background: transparent;
  color: #ffd7d7;
  padding: 8px 10px;
  font-size: 14px;
}

.message {
  min-height: 24px;
  margin-top: 14px;
  font-size: 14px;
  color: #c8f7ff;
}

.message.error {
  color: var(--danger);
}

.hidden {
  display: none !important;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(0.94);
    opacity: 0.22;
  }
  50% {
    transform: scale(1.04);
    opacity: 0.34;
  }
}

@media (max-width: 700px) {
  .auth-card {
    width: min(94vw, 560px);
    padding: 24px 18px;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .action-row {
    flex-direction: column;
  }

  .auth-card h1 {
    font-size: 26px;
    letter-spacing: 4px;
  }
}