/* ------------------------------------------------------------------
   Portfolio — Systems Administrator
   Dark "terminal / ops" aesthetic. Plain CSS, no build step.
------------------------------------------------------------------ */

:root {
  --bg:        #0d1117;
  --bg-alt:    #111823;
  --surface:   #161d29;
  --border:    #263142;
  --text:      #c9d4e3;
  --text-dim:  #8b97a7;
  --heading:   #e6edf5;
  --accent:    #39d353;   /* terminal green */
  --accent-2:  #58a6ff;   /* link blue */
  --amber:     #e3b341;
  --red:       #f85149;
  --radius:    10px;
  --maxw:      1280px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { color: var(--heading); line-height: 1.25; }

/* ---------- Accessibility ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #06210d;
  padding: .6rem 1rem;
  border-radius: 0 0 var(--radius) 0;
  z-index: 200;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: .85rem 1.25rem;
  color: var(--accent);

}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--heading);
  font-size: 1.05rem;
}
.brand:hover { text-decoration: none; }
.brand-prompt { color: var(--accent); }

.nav-menu {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: var(--accent);
  font-weight: 500;
  font-size: .95rem;
}
.nav-menu a:hover { color: #ffffff; text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: .35rem;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--heading);
  transition: transform .25s, opacity .25s;
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3rem, 8vw, 6rem) 0;
  border-bottom: 1px solid var(--border);
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-copy .eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  margin: 0 0 .25rem;
  letter-spacing: .02em;
}
.hero-copy h1 {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  margin: 0 0 1rem;
}
.hero-copy .tagline {
  color: var(--text-dim);
  font-size: 1.15rem;
  margin: 0 0 1.75rem;
  max-width: 34ch;
}

.hero-actions { display: flex; gap: .85rem; flex-wrap: wrap; }

/* Terminal window */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,.45);
  font-family: var(--mono);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .6rem .8rem;
  background: #0b0f16;
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.red { background: var(--red); }
.dot.amber { background: var(--amber); }
.dot.green { background: var(--accent); }
.terminal-title {
  margin-left: auto;
  color: var(--text-dim);
  font-size: .8rem;
}
.terminal-body { padding: 1.1rem 1.2rem; font-size: .9rem; }
.terminal-body p { margin: 0 0 .45rem; }
.terminal-body .prompt { color: var(--accent); }
.terminal-body .out { color: var(--text-dim); padding-left: .25rem; }
.cursor {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 5rem) 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
  font-family: var(--mono);
  font-size: 1.6rem;
  margin: 0 0 2rem;
}
.section-title .hash { color: var(--accent); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
.about-text p { margin: 0 0 1rem; }

.about-facts { list-style: none; margin: 0; padding: 0; }
.about-facts li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: .9rem;
}
.about-facts li:last-child { border-bottom: 0; }
.fact-label { color: var(--text-dim); }
.fact-value { color: var(--heading); text-align: right; }
.fact-value.available { color: var(--accent); }

/* ---------- Cards / Skills ---------- */
.skills-grid,
.projects-grid {
  display: grid;
  gap: 1.25rem;
}
.skills-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.projects-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card h3 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-family: var(--mono);
}

.tag-list { list-style: none; margin: 0; padding: 0; }
.tag-list li {
  color: var(--text-dim);
  padding: .3rem 0;
  font-size: .92rem;
}
.tag-list li::before {
  content: "▸ ";
  color: var(--accent);
}
.tag-list.inline {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1rem;
}
.tag-list.inline li {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .25rem .7rem;
  font-size: .78rem;
  font-family: var(--mono);
  color: var(--accent);
}
.tag-list.inline li::before { content: ""; }

.project p { color: var(--text-dim); margin: 0; }
.project-link { margin-top: .75rem !important; font-family: var(--mono); font-size: .9rem; }
.project-link a { color: var(--accent); font-weight: 500; }

/* ---------- Certifications ---------- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.cert {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.cert-badge {
  font-family: var(--mono);
  font-weight: 700;
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: .3rem .5rem;
  white-space: nowrap;
}
.cert p { margin: 0; color: var(--heading); font-weight: 500; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: .7rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: transform .15s, background .2s, border-color .2s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: var(--accent);
  color: #06210d;
}
.btn-primary:hover { background: #4ae066; }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--heading);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Contact ---------- */
.contact-intro {
  color: var(--text-dim);
  max-width: 50ch;
  margin: 0 0 1.75rem;
}
.contact-links { display: flex; gap: .85rem; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  font-family: var(--mono);
  font-size: .85rem;
}
.site-footer .prompt { color: var(--accent); }
.site-footer .copyright { color: var(--text-dim); margin: .5rem 0 0; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-copy { order: -1; }
  .about-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .nav-menu.open { max-height: 320px; }
  .nav-menu li { border-top: 1px solid var(--border); }
  .nav-menu a { display: block; padding: .9rem 1.25rem; }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}