@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&family=Fira+Mono:wght@400;500&display=swap");

:root {
  color-scheme: dark;
  --bg-root: #02040a;
  --bg-panel: rgba(2, 8, 18, 0.72);
  --bg-panel-strong: rgba(6, 16, 24, 0.95);
  --grid-line: rgba(0, 255, 179, 0.12);
  --accent-primary: #00ff9c;
  --accent-secondary: #15b6ff;
  --accent-warning: #ff4545;
  --accent-amber: #ffbd59;
  --accent-purple: #c084fc;
  --text-muted: rgba(255, 255, 255, 0.65);
  --text-strong: #f8fff6;
  --border-soft: rgba(255, 255, 255, 0.08);
  --noise-alpha: 0.06;
  --shadow-glow: 0 0 30px rgba(0, 255, 156, 0.35);
  --transition-speed: 220ms;
  --scanline-size: 2px;
  --mix-green: rgba(0, 255, 194, 0.2);
  --mix-red: rgba(255, 56, 72, 0.25);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Fira Mono", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-root);
  color: var(--text-strong);
  min-height: 100%;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.3) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.15;
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg,
      rgba(0, 0, 0, 0.35) 0,
      rgba(0, 0, 0, 0.35) var(--scanline-size),
      transparent calc(var(--scanline-size) * 2)),
    radial-gradient(circle at top, rgba(0, 255, 197, 0.1), transparent 45%);
  mix-blend-mode: screen;
  opacity: 0.45;
  pointer-events: none;
  z-index: -1;
}

#noise-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  mix-blend-mode: screen;
  opacity: var(--noise-alpha);
  z-index: 0;
}

.app-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: clamp(1rem, 3vw, 2.5rem);
  gap: 1.5rem;
}

.shell-header {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-glow);
}

.logo-cluster {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-glyph {
  font-size: 2.25rem;
  color: var(--accent-primary);
  text-shadow: 0 0 18px rgba(0, 255, 156, 0.8);
}

.logo-title {
  font-size: 1rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin: 0;
}

.logo-subtitle {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin: 0.15rem 0 0;
}

.shell-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.nav-btn {
  flex: 1;
  border: 1px solid var(--border-soft);
  background: transparent;
  color: var(--text-strong);
  font: 500 0.9rem "Fira Mono", monospace;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.8rem 1rem;
  cursor: pointer;
  transition: border-color var(--transition-speed), color var(--transition-speed), background var(--transition-speed);
  position: relative;
  overflow: hidden;
}

.nav-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  transform: translateX(-100%);
  transition: transform 400ms;
}

.nav-btn:hover::after {
  transform: translateX(100%);
}

.nav-btn:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}

.nav-btn.is-active {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: 0 0 18px rgba(0, 255, 156, 0.35);
}

.ticker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: "Fira Mono", monospace;
  font-size: 0.85rem;
  color: var(--accent-secondary);
  text-transform: uppercase;
}

.ticker-label {
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.ticker-stream {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.viewport {
  flex: 1;
  border: 1px solid var(--border-soft);
  padding: clamp(1rem, 3vw, 2.5rem);
  background: var(--bg-panel-strong);
  backdrop-filter: blur(20px);
  min-height: 60vh;
  position: relative;
}

.scene {
  display: grid;
  gap: 1.5rem;
  position: relative;
}

.scene::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.scene-header h1 {
  margin: 0;
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  line-height: 1;
  text-transform: uppercase;
}

.scene-header h1 span {
  display: inline-block;
  font-size: 0.42em;
  letter-spacing: 0.35em;
  color: var(--accent-secondary);
}

.scene-header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.75rem;
  color: var(--accent-primary);
  margin: 0 0 0.35rem;
}

.scene-header .lede {
  margin: 0.75rem 0 0;
  color: var(--text-muted);
  max-width: 60ch;
}

.vt-panel {
  view-transition-name: vt-panel;
}

.vt-fragment {
  view-transition-name: vt-fragment;
}

.scene {
  view-transition-name: vt-scene;
}

@media (max-width: 720px) {
  .shell-header {
    grid-template-columns: 1fr;
  }

  .shell-nav {
    width: 100%;
  }

  .nav-btn {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.glitch-rain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  z-index: 2;
}

.glitch-rain span {
  position: absolute;
  width: 2px;
  height: 60px;
  background: linear-gradient(180deg, rgba(0, 255, 159, 0), rgba(0, 255, 216, 0.9));
  opacity: 0.5;
}

.radar-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 90deg, rgba(21, 182, 255, 0.35), transparent 30%);
  mix-blend-mode: screen;
  pointer-events: none;
}

.reboot-flash {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(21, 182, 255, 0.4), transparent 65%);
  pointer-events: none;
}

body.mode-attack {
  --accent-primary: #ff4545;
  --accent-secondary: #ffbd59;
}

body.mode-terminal {
  --accent-primary: #00ff9c;
  --accent-secondary: #c084fc;
}