/* ==========================================================================
   Portfolio — Security Console Theme
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #0e141b;
  --bg-panel: #161d26;
  --bg-panel-raised: #1b2430;
  --line: #2a3441;
  --text: #e7ecf1;
  --text-dim: #9aa7b4;
  --text-faint: #5f6b78;
  --amber: #e3a44c;
  --amber-dim: #b3854a;
  --teal: #5fb8ab;
  --danger: #c9634f;

  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --max-w: 920px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--amber-dim);
  color: #0e141b;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(14, 20, 27, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 15px;
  color: var(--text);
  letter-spacing: 0.02em;
}
.brand span { color: var(--amber); }

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--text-dim);
  font-size: 14.5px;
}
.site-nav a:hover { color: var(--text); text-decoration: none; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 88px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  margin-bottom: 22px;
}

.hero-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(95, 184, 171, 0.18);
}

.hero h1 {
  font-size: clamp(34px, 4.4vw, 50px);
  line-height: 1.12;
  margin: 0 0 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero-role {
  font-size: 19px;
  color: var(--text-dim);
  margin: 0 0 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 4px;
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid var(--line);
}

.btn-primary {
  background: var(--amber);
  color: #14100a;
  border-color: var(--amber);
}
.btn-primary:hover { background: #eeb264; text-decoration: none; }

.btn-secondary {
  color: var(--text);
  background: transparent;
}
.btn-secondary:hover { border-color: var(--text-dim); text-decoration: none; }

/* Node graph decoration */
.hero-graphic {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 340px;
  justify-self: end;
}

.hero-graphic svg { width: 100%; height: 100%; }

.node { fill: var(--bg-panel-raised); stroke: var(--line); stroke-width: 1.5; }
.node.active { stroke: var(--amber); fill: rgba(227, 164, 76, 0.08); }
.edge { stroke: var(--line); stroke-width: 1; }
.edge.active { stroke: var(--amber-dim); }

/* ---------- Section shell ---------- */

section {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: 26px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

.section-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-faint);
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
}

.about-body p {
  color: var(--text-dim);
  margin: 0 0 16px;
  max-width: 62ch;
}
.about-body p:last-child { margin-bottom: 0; }

.about-facts {
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

.fact {
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.fact:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.fact dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-faint);
  margin-bottom: 4px;
}
.fact dd { margin: 0; color: var(--text); font-size: 15px; }

/* ---------- Expertise ---------- */

.expertise-list {
  display: flex;
  flex-direction: column;
}

.expertise-row {
  display: grid;
  grid-template-columns: 220px 1fr 90px;
  gap: 24px;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.expertise-row:last-child { border-bottom: 1px solid var(--line); }

.expertise-name {
  font-weight: 500;
  font-size: 16px;
}

.expertise-desc {
  color: var(--text-dim);
  font-size: 14.5px;
}

.meter {
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.meter span {
  display: block;
  height: 100%;
  background: var(--amber-dim);
}

/* ---------- Case studies ---------- */

.case {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
}
.case:last-child { border-bottom: 1px solid var(--line); }

.case-meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-faint);
  line-height: 1.8;
}
.case-meta .tag {
  display: inline-block;
  color: var(--teal);
}

.case h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 600;
}

.case p {
  color: var(--text-dim);
  margin: 0 0 10px;
  max-width: 60ch;
}

.case-outcome {
  color: var(--text);
  font-size: 14.5px;
}
.case-outcome strong { color: var(--amber); font-weight: 500; }

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

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.cert {
  background: var(--bg);
  padding: 20px 24px;
}

.cert-name { font-weight: 500; font-size: 15px; margin-bottom: 3px; }
.cert-issuer { color: var(--text-faint); font-size: 13px; font-family: var(--font-mono); margin-bottom: 2px; }
.cert-date { color: var(--amber-dim); font-size: 12px; font-family: var(--font-mono); letter-spacing: 0.02em; }

/* ---------- Contact / footer ---------- */

.contact {
  padding: 80px 0;
  border-bottom: none;
}

.contact h2 {
  font-size: 30px;
  margin: 0 0 14px;
  max-width: 20ch;
}

.contact p {
  color: var(--text-dim);
  max-width: 50ch;
  margin: 0 0 32px;
}

.contact-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 15px;
}

footer {
  padding: 24px 0 48px;
  color: var(--text-faint);
  font-size: 13px;
  font-family: var(--font-mono);
}

/* ---------- Responsive ---------- */

@media (max-width: 760px) {
  .site-nav { display: none; }

  .hero .wrap {
    grid-template-columns: 1fr;
  }
  .hero-graphic { display: none; }

  .about-grid { grid-template-columns: 1fr; }
  .about-facts {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 24px;
  }

  .expertise-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .meter { max-width: 140px; }

  .case {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .cert-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}