:root {
  color-scheme: dark;
  --bg-deep: #020916;
  --bg-blue: #061a3a;
  --panel: rgba(7, 27, 58, 0.9);
  --panel-line: rgba(95, 176, 255, 0.24);
  --text: #f3f8ff;
  --muted: #91a9c7;
  --cyan: #37c7ff;
  --blue: #267dff;
  --green: #48e0ad;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 18%, rgba(31, 111, 255, 0.28), transparent 34rem),
    radial-gradient(circle at 82% 72%, rgba(28, 208, 255, 0.16), transparent 32rem),
    linear-gradient(145deg, var(--bg-deep), var(--bg-blue));
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(91, 164, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 164, 255, 0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

button {
  font: inherit;
}

.page-shell {
  position: relative;
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  padding: max(24px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
}

.grid-glow {
  position: absolute;
  width: min(74vw, 720px);
  aspect-ratio: 1;
  border: 1px solid rgba(62, 174, 255, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 120px rgba(26, 120, 255, 0.18), inset 0 0 90px rgba(26, 120, 255, 0.08);
  animation: breathe 5s ease-in-out infinite;
}

.access-card {
  position: relative;
  width: min(100%, 610px);
  overflow: hidden;
  border: 1px solid var(--panel-line);
  border-radius: 24px;
  background: linear-gradient(155deg, rgba(11, 37, 76, 0.96), rgba(3, 15, 34, 0.95));
  box-shadow: 0 28px 90px rgba(0, 4, 15, 0.62), 0 0 0 1px rgba(85, 174, 255, 0.05) inset;
  backdrop-filter: blur(18px);
}

.access-card::before {
  position: absolute;
  top: 0;
  left: 12%;
  width: 76%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 18px var(--cyan);
}

.brand-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 25px 28px;
  border-bottom: 1px solid rgba(115, 177, 240, 0.14);
}

.security-mark {
  display: grid;
  width: 43px;
  height: 48px;
  flex: 0 0 auto;
  place-items: center;
  clip-path: polygon(50% 0, 93% 17%, 85% 72%, 50% 100%, 15% 72%, 7% 17%);
  background: linear-gradient(145deg, var(--cyan), var(--blue));
  filter: drop-shadow(0 0 14px rgba(55, 199, 255, 0.4));
}

.security-mark span {
  width: 13px;
  height: 18px;
  border: 3px solid #fff;
  border-top: 0;
  border-radius: 2px 2px 5px 5px;
  transform: translateY(4px);
}

.security-mark span::before {
  display: block;
  width: 9px;
  height: 9px;
  margin: -7px auto 0;
  border: 2px solid #fff;
  border-bottom: 0;
  border-radius: 7px 7px 0 0;
  content: "";
}

.eyebrow,
.room-name,
.panel-kicker,
h1,
.welcome-message {
  margin: 0;
}

.eyebrow {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.room-name {
  max-width: 290px;
  margin-top: 3px;
  overflow: hidden;
  font-size: 18px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  padding: 7px 10px;
  border: 1px solid rgba(72, 224, 173, 0.24);
  border-radius: 999px;
  color: #a9f4dc;
  background: rgba(38, 176, 132, 0.08);
  font-size: 12px;
  white-space: nowrap;
}

.security-badge i,
.security-footer i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 9px var(--green);
}

.welcome-panel {
  padding: 48px 42px 40px;
  text-align: center;
}

.panel-kicker {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.12em;
}

h1 {
  margin-top: 12px;
  font-size: clamp(34px, 7vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.welcome-message {
  min-height: 27px;
  margin-top: 13px;
  color: #b8cae1;
  font-size: clamp(15px, 3vw, 18px);
  line-height: 1.55;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 34px 0 26px;
  padding: 17px 19px;
  border: 1px solid rgba(72, 154, 240, 0.18);
  border-radius: 14px;
  background: rgba(0, 9, 23, 0.35);
  text-align: left;
}

.connection-status strong,
.connection-status span {
  display: block;
}

.connection-status strong {
  font-size: 14px;
}

.connection-status div > span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.status-orbit {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid rgba(55, 199, 255, 0.28);
  border-radius: 50%;
}

.status-orbit::before {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  content: "";
  background: var(--cyan);
  box-shadow: 0 0 15px var(--cyan);
}

.status-orbit::after {
  position: absolute;
  inset: -1px;
  border: 2px solid transparent;
  border-top-color: var(--cyan);
  border-radius: 50%;
  content: "";
  animation: rotate 1.2s linear infinite;
}

.actions {
  display: grid;
  gap: 12px;
}

.primary-button,
.secondary-button {
  min-height: 54px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.primary-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  border: 1px solid rgba(97, 210, 255, 0.58);
  color: #fff;
  background: linear-gradient(105deg, #1265ed, #18a7ef);
  box-shadow: 0 12px 32px rgba(14, 108, 231, 0.34), inset 0 1px rgba(255, 255, 255, 0.2);
  font-size: 16px;
  font-weight: 700;
}

.secondary-button {
  border: 1px solid rgba(106, 164, 223, 0.24);
  color: #b8cce6;
  background: rgba(22, 65, 112, 0.16);
  font-size: 14px;
}

.button-arrow {
  font-size: 22px;
  line-height: 1;
}

.primary-button:not(:disabled):hover,
.secondary-button:not(:disabled):hover {
  transform: translateY(-1px);
}

.primary-button:not(:disabled):hover {
  box-shadow: 0 16px 38px rgba(14, 108, 231, 0.48), inset 0 1px rgba(255, 255, 255, 0.2);
}

button:disabled {
  cursor: not-allowed;
  filter: saturate(0.35);
  opacity: 0.52;
}

button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.security-footer {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 17px 25px;
  border-top: 1px solid rgba(115, 177, 240, 0.11);
  color: #718ba9;
  font-size: 11px;
}

.security-footer span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.security-footer i {
  width: 4px;
  height: 4px;
  opacity: 0.72;
}

noscript {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  padding: 12px;
  border-radius: 8px;
  color: #fff;
  background: #8d2435;
  text-align: center;
}

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

@keyframes breathe {
  50% { opacity: 0.48; transform: scale(1.04); }
}

@media (max-width: 560px) {
  .brand-header {
    padding: 20px;
  }

  .security-badge {
    padding: 7px;
    font-size: 0;
  }

  .security-badge i {
    width: 8px;
    height: 8px;
  }

  .room-name {
    max-width: 52vw;
    font-size: 16px;
  }

  .welcome-panel {
    padding: 38px 22px 30px;
  }

  .security-footer {
    flex-wrap: wrap;
    gap: 9px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}