*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --accent-green: #3fb950;
  --accent-purple: #bc8cff;
  --accent-orange: #f0883e;
  --font-sans: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(88, 166, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.grid-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(88, 166, 255, 0.12), transparent 60%);
}

.container {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
}

.logo-bracket {
  color: var(--accent);
}

.logo-text {
  color: var(--text);
}

.logo-accent {
  color: var(--accent);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-orange);
  background: rgba(240, 136, 62, 0.1);
  border: 1px solid rgba(240, 136, 62, 0.3);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-orange);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
  min-height: 1.5rem;
}

.prompt {
  color: var(--accent-green);
  margin-right: 0.5rem;
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 52ch;
}

.code-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.panel-title {
  margin-left: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.code-block {
  padding: 1.25rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  overflow-x: auto;
}

.code-block .key { color: var(--accent-purple); }
.code-block .string { color: var(--accent-green); }
.code-block .number { color: var(--accent-orange); }

.progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.progress-bar {
  height: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-purple));
  border-radius: 999px;
  transition: width 0.4s ease;
}

.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-meta {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  opacity: 0.7;
}

.mono {
  color: var(--accent);
}

.brand-name {
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 480px) {
  .container {
    padding: 2rem 1.25rem;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
  }
}