/* ============================================================
   ringler.me — site stylesheet
   Edit the variables below to re-theme the whole site.
   ============================================================ */

:root {
  --bg:      #10161d;   /* page background */
  --panel:   #171f28;   /* card / panel background */
  --line:    #232e3a;   /* borders and rules */
  --text:    #d8dee6;   /* body text */
  --muted:   #8a97a5;   /* secondary text */
  --accent:  #d9a441;   /* amber — headings, highlights */
  --link:    #7fb2d9;   /* steel blue — hyperlinks */

  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Consolas,
          "Liberation Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;

  --maxw: 760px;        /* content column width */
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0rem;
  line-height: 1.6;
}

/* ---------- Header / navigation ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
}

.prompt {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
.prompt .host { color: var(--text); }
.prompt::after {
  content: "▊";
  margin-left: 0.35ch;
  color: var(--accent);
  animation: blink 1.2s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.site-nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.15rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover  { color: var(--text); }
.site-nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- Main column ---------- */

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

h1, h2, h3 { font-family: var(--mono); line-height: 1.25; }

h1 { font-size: 2.1rem; margin: 0 0 0.25rem; color: var(--text); }

h2 {
  font-size: 1.15rem;
  color: var(--accent);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--line);
}
h2::before { content: "## "; color: var(--muted); }

h3 { font-size: 1.0rem; margin: 1.4rem 0 0.2rem; }

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

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

ul { padding-left: 1.3rem; }
li { margin: 0.25rem 0; }

.muted { color: var(--muted); }
.small { font-size: 0.88rem; }

/* ---------- Home page hero ---------- */

.hero {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin-top: 1.5rem;
}

.hero img {
  width: 220px;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line);
  flex-shrink: 0;
}

.hero .tagline {
  font-family: var(--mono);
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.92rem;
  padding: 0;
  list-style: none;
}

@media (max-width: 640px) {
  .hero { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
  h1 { font-size: 1.7rem; }
}

/* ---------- Resume page ---------- */

.job-meta {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.3rem;
}

.download-box {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
}
.download-box a { font-family: var(--mono); font-weight: 600; }

/* ---------- Certifications grid ---------- */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.cert {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1rem;
  text-align: center;
}
.cert img {
  width: 100%;
  max-width: 120px;
  height: auto;
  margin-bottom: 0.5rem;
}
.cert .cert-name {
  font-family: var(--mono);
  font-size: 0.8rem;
  display: block;
}
.cert .cert-date {
  font-size: 0.75rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}
.site-footer .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.2rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}