:root {
  --background: #020406;
  --surface: rgba(7, 13, 18, 0.66);
  --surface-border: rgba(93, 218, 239, 0.13);
  --cyan: #41e7ff;
  --cyan-bright: #9bf4ff;
  --cyan-dim: rgba(65, 231, 255, 0.22);
  --text: #f0f6f8;
  --muted: #87969d;
  --line: rgba(153, 184, 193, 0.16);
  --shadow: rgba(0, 0, 0, 0.52);
  --font-stack: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: var(--font-stack);
  color: var(--text);
  background:
    radial-gradient(circle at 50% 35%, rgba(22, 76, 88, 0.24), transparent 33rem),
    radial-gradient(circle at 50% 85%, rgba(15, 44, 53, 0.12), transparent 36rem),
    var(--background);
}

.access-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 30px 20px;
}

.ambient-grid,
.ambient-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.ambient-grid {
  background-image:
    linear-gradient(rgba(66, 117, 127, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66, 117, 127, 0.032) 1px, transparent 1px);
  background-size: 66px 66px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.ambient-glow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(72vw, 580px);
  height: min(72vw, 580px);
  transform: translate(-50%, -63%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(55, 222, 246, 0.095), transparent 62%);
  filter: blur(20px);
}

.access-panel {
  width: min(100%, 406px);
  padding: 38px 38px 30px;
  border: 1px solid var(--surface-border);
  border-radius: 26px;
  background:
    linear-gradient(145deg, rgba(14, 22, 27, 0.56), rgba(4, 8, 11, 0.84)),
    var(--surface);
  box-shadow:
    0 34px 90px var(--shadow),
    0 0 0 1px rgba(255, 255, 255, 0.018) inset,
    0 -1px 30px rgba(65, 231, 255, 0.026) inset;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  text-align: center;
}

.brand-heading {
  margin: 22px 0 34px;
  line-height: 0;
}

.brand-logo {
  display: block;
  width: min(100%, 285px);
  height: auto;
  margin: 0 auto;
  mix-blend-mode: screen;
}

.intelligence-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 124px;
  height: 124px;
  margin: 0 auto;
}

.mark-core {
  position: relative;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(100, 232, 250, 0.34);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(35, 129, 144, 0.24), rgba(6, 19, 23, 0.2) 65%);
  box-shadow:
    0 0 34px rgba(50, 222, 248, 0.25),
    0 0 9px rgba(112, 237, 255, 0.14) inset;
}

.brand-x {
  width: 40px;
  height: auto;
  display: block;
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 7px rgba(65, 231, 255, 0.75));
}

.orbit,
.pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.orbit-one {
  inset: 16px;
  border: 1px solid rgba(65, 231, 255, 0.18);
  border-top-color: rgba(65, 231, 255, 0.76);
  border-right-color: rgba(65, 231, 255, 0.04);
  animation: spin 6.8s linear infinite;
}

.orbit-two {
  inset: 7px;
  border: 1px solid transparent;
  border-left-color: rgba(65, 231, 255, 0.43);
  border-bottom-color: rgba(65, 231, 255, 0.08);
  animation: spin-reverse 10s linear infinite;
}

.orbit-three {
  inset: 25px;
  border: 1px dashed rgba(65, 231, 255, 0.22);
  animation: spin 15s linear infinite;
}

.pulse {
  inset: 10px;
  border: 1px solid rgba(65, 231, 255, 0.3);
  opacity: 0;
  animation: wave 3.6s ease-out infinite;
}

.pulse-two {
  animation-delay: 1.8s;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.field {
  text-align: left;
}

.field label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.field input {
  width: 100%;
  height: 51px;
  padding: 0 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: none;
  background: rgba(1, 4, 7, 0.56);
  color: var(--text);
  font: inherit;
  font-size: 0.94rem;
  letter-spacing: 0.03em;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.field input::placeholder {
  color: #617178;
}

.field input:focus {
  border-color: rgba(65, 231, 255, 0.44);
  background: rgba(4, 10, 13, 0.82);
  box-shadow: 0 0 0 3px rgba(65, 231, 255, 0.08);
}

.submit-button {
  height: 52px;
  margin-top: 6px;
  border: 1px solid rgba(65, 231, 255, 0.46);
  border-radius: 12px;
  background:
    linear-gradient(100deg, rgba(22, 99, 111, 0.35), rgba(17, 63, 74, 0.19)),
    rgba(8, 21, 25, 0.82);
  color: var(--cyan-bright);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow:
    0 0 25px rgba(65, 231, 255, 0.05),
    0 1px rgba(255, 255, 255, 0.035) inset;
  transition:
    border-color 190ms ease,
    background-color 190ms ease,
    box-shadow 190ms ease,
    transform 120ms ease;
}

.submit-button:hover,
.submit-button:focus-visible {
  border-color: rgba(65, 231, 255, 0.74);
  background-color: rgba(19, 54, 61, 0.72);
  box-shadow: 0 0 31px rgba(65, 231, 255, 0.13);
  outline: none;
}

.submit-button:active {
  transform: translateY(1px);
}

.status-message {
  min-height: 19px;
  margin: 20px 0 3px;
  color: rgba(119, 225, 240, 0.9);
  font-size: 0.78rem;
  letter-spacing: 0.035em;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.status-message.visible {
  opacity: 1;
  transform: translateY(0);
}

.private-note {
  margin: 17px 0 0;
  color: #596970;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

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

@keyframes spin-reverse {
  to {
    transform: rotate(-360deg);
  }
}

@keyframes wave {
  0% {
    transform: scale(0.78);
    opacity: 0;
  }
  18% {
    opacity: 0.38;
  }
  78%,
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

@media (max-width: 480px) {
  .access-panel {
    padding: 33px 22px 26px;
    border-radius: 22px;
  }

  .intelligence-mark {
    width: 112px;
    height: 112px;
  }

  .brand-heading {
    margin-top: 19px;
    margin-bottom: 29px;
  }

  .brand-logo {
    width: min(100%, 260px);
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}