/* craigc.dev — style.css */

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

:root {
  --bg:        #ffffff;
  --fg:        #1a1a1a;
  --muted:     #666666;
  --accent:    #0066cc;
  --border:    #e5e5e5;
  --max-width: 680px;
  --font:      system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono:      "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:     #0f0f0f;
    --fg:     #e8e8e8;
    --muted:  #888888;
    --accent: #4d9fff;
    --border: #2a2a2a;
  }
}

html { font-size: 16px; line-height: 1.6; color-scheme: light dark; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  padding: 0 1.25rem;
  min-height: 100vh;
}

.container { max-width: var(--max-width); margin: 0 auto; }

header { padding: 3rem 0 2rem; border-bottom: 1px solid var(--border); }

.site-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
}
.site-title:hover { color: var(--accent); }

nav { display: flex; border-bottom: 1px solid var(--border); }

.tab {
  display: inline-block;
  padding: 0.75rem 0;
  margin-right: 1.5rem;
  margin-bottom: -1px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  font-family: var(--font);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--fg); }
.tab.active { color: var(--fg); border-bottom-color: var(--fg); }

.panel { display: none; padding: 2.5rem 0; }
.panel.active { display: block; }

.about-content { max-width: 540px; }
.about-content h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.about-content p { color: var(--muted); font-size: 0.9375rem; line-height: 1.7; margin-bottom: 1rem; }
.about-content p:last-child { margin-bottom: 0; }
.about-content a { color: var(--accent); text-decoration: none; }
.about-content a:hover { text-decoration: underline; }

.ideas-list { list-style: none; }

.idea-item { padding: 1.75rem 0; border-bottom: 1px solid var(--border); }
.idea-item:first-child { padding-top: 0; }
.idea-item:last-child { border-bottom: none; }

.idea-meta { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.idea-date { font-size: 0.8125rem; color: var(--muted); font-family: var(--mono); }
.idea-tags { display: flex; gap: 0.375rem; }
.idea-tag {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--border);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
}

.idea-title {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 0.4rem;
  line-height: 1.4;
  text-decoration: none;
  display: block;
  cursor: pointer;
}
.idea-title:hover { color: var(--accent); }

.idea-summary { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

.idea-body { display: none; margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--border); }
.idea-body.open { display: block; }

.idea-body-content { font-size: 0.9375rem; line-height: 1.75; color: var(--fg); white-space: pre-wrap; }

.collapse-btn {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--muted);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font);
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.collapse-btn:hover { color: var(--fg); }

.empty { color: var(--muted); font-size: 0.9375rem; padding: 2rem 0; }

footer { padding: 2rem 0 3rem; border-top: 1px solid var(--border); margin-top: 1rem; }
footer p { font-size: 0.8125rem; color: var(--muted); }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--fg); text-decoration: underline; }

@media (max-width: 600px) {
  header { padding: 2rem 0 1.5rem; }
  .panel { padding: 2rem 0; }
}