/* Terminal Graph — shared site styles */

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

/* Tokens */
:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --border: #2a2a2a;
  --text: #e0e0e0;
  --text-dim: #888888;
  --accent: #e12120;
}

/* Base */
html {
  background: var(--bg);
}

body {
  font-family: "JetBrains Mono", monospace;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* Links */
a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s;
}

a:hover {
  text-decoration-color: var(--accent);
}

/* Header */
header.site {
  padding: 2rem 2rem;
  display: flex;
  justify-content: center;
}

header.site a.brand {
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-indent: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: filter 0.15s;
}

.btn:hover {
  filter: brightness(1.15);
}

.btn:active {
  filter: brightness(0.85);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--text);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

/* Footer */
footer {
  font-size: 1rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  text-align: center;
}

footer a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}

footer a:hover {
  color: var(--text);
}

.sep {
  margin: 0 0.5rem;
}

@media (max-width: 720px) {
  header.site {
    padding: 1.5rem 1rem 0;
  }

  footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  footer .sep {
    display: none;
  }
}