:root {
  --cyan: #00f5ff;
  --cyan-dim: #00b8c4;
  --green: #00ff88;
  --red: #ff2d55;
  --bg: #050a0f;
  --panel: rgba(0, 245, 255, 0.04);
  --border: rgba(0, 245, 255, 0.2);
  --text: #c0e8f0;
  --mono: 'Share Tech Mono', monospace;
  --display: 'Orbitron', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
  overflow-x: hidden;
}
.hidden { display: none !important; }
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}
.scanline {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: rgba(0,245,255,0.18);
  animation: scan 4s linear infinite;
  z-index: 100;
  pointer-events: none;
}
@keyframes scan { 0% { top: 0; } 100% { top: 100vh; } }
.corner {
  position: absolute;
  width: 24px; height: 24px;
  border-color: var(--cyan);
  border-style: solid;
  z-index: 10;
}
.corner-tl { top: 16px; left: 16px; border-width: 2px 0 0 2px; }
.corner-tr { top: 16px; right: 16px; border-width: 2px 2px 0 0; }
.corner-bl { bottom: 16px; left: 16px; border-width: 0 0 2px 2px; }
.corner-br { bottom: 16px; right: 16px; border-width: 0 2px 2px 0; }
.app {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1;
}
.boot-screen,
.main-screen {
  position: relative;
  width: 100%;
  max-width: 680px;
  background: var(--panel);
  border: 1px solid var(--border);
}
.boot-screen { max-width: 560px; padding: 48px 40px; }
.main-screen { padding: 48px 40px; display: flex; flex-direction: column; gap: 32px; }
.boot-logo {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 0.2em;
  margin-bottom: 32px;
  text-shadow: 0 0 20px var(--cyan);
}
.boot-lines { display: flex; flex-direction: column; gap: 8px; }
.boot-line {
  font-size: 0.8rem;
  color: var(--green);
  opacity: 0;
  animation: fadeIn 0.3s forwards;
}
@keyframes fadeIn { to { opacity: 1; } }
.header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.header-left { display: flex; flex-direction: column; gap: 2px; }
.brand {
  font-family: var(--display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--cyan);
}
.brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--cyan-dim);
  opacity: 0.7;
}
.ping {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
}
.glitch-wrapper { text-align: center; }
.glitch {
  font-family: var(--display);
  font-size: clamp(2.4rem, 8vw, 4rem);
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 0.12em;
  position: relative;
  text-shadow: 0 0 30px rgba(0,245,255,0.6);
  animation: flicker 6s infinite;
}
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0; right: 0;
}
.glitch::before {
  color: var(--red);
  animation: glitch1 3s infinite;
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
}
.glitch::after {
  color: var(--green);
  animation: glitch2 3s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
}
@keyframes glitch1 {
  0%, 94%, 100% { transform: translateX(0); opacity: 0; }
  95% { transform: translateX(-4px); opacity: 0.8; }
  97% { transform: translateX(4px); opacity: 0.8; }
}
@keyframes glitch2 {
  0%, 96%, 100% { transform: translateX(0); opacity: 0; }
  97% { transform: translateX(4px); opacity: 0.8; }
  99% { transform: translateX(-4px); opacity: 0.8; }
}
@keyframes flicker { 0%, 97%, 100% { opacity: 1; } 98% { opacity: 0.85; } 99% { opacity: 1; } }
.subtitle {
  text-align: center;
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--cyan-dim);
  margin-top: 8px;
  opacity: 0.6;
}
.card {
  background: rgba(0,245,255,0.03);
  border: 1px solid var(--border);
  padding: 20px 24px;
}
.status-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(0.8); opacity: 0.5; } }
.status-label { color: var(--cyan-dim); }
.status-value { color: var(--green); }
.status-divider { opacity: 0.4; }
.error-msg {
  color: var(--red);
  text-align: center;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
}
.btn {
  align-self: center;
  min-width: 220px;
  padding: 14px 24px;
  border: 1px solid var(--cyan);
  background: transparent;
  color: var(--cyan);
  font-family: var(--display);
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: 0.2s ease;
}
.btn:hover:not(:disabled) {
  background: rgba(0, 245, 255, 0.08);
  box-shadow: 0 0 20px rgba(0,245,255,0.2);
}
.btn:disabled {
  opacity: 0.7;
  cursor: default;
}
.tech-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.tech-badge {
  border: 1px solid var(--border);
  padding: 8px 12px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--cyan-dim);
}
.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: rgba(192,232,240,0.75);
}
.footer-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green);
}
@media (max-width: 640px) {
  .boot-screen, .main-screen { padding: 32px 20px; }
  .header { flex-direction: column; }
  .status-bar { font-size: 0.64rem; }
}