/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --bg:           #020617;
  --bg-alt:       #050816;
  --panel:        #060a1e;
  --border:       rgba(248, 250, 252, 0.06);
  --border-hover: rgba(249, 115, 115, 0.5);

  --accent:       #f97373;
  --accent-soft:  rgba(249, 115, 115, 0.12);
  --accent-glow:  rgba(249, 115, 115, 0.25);
  --accent-strong:#fca5a5;

  --text:         #e5e7eb;
  --muted:        #9ca3af;
  --muted-soft:   #6b7280;
  --success:      #22c55e;
  --amber:        #fbbf24;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  --sans: "Inter", system-ui, -apple-system, sans-serif;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --shadow-soft:   0 20px 50px rgba(0, 0, 0, 0.8);
  --shadow-subtle: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-glow:   0 0 30px rgba(249, 115, 115, 0.15);

  --container-max: 1080px;
  --nav-h:         60px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 0.15s;
  --t-med:  0.24s;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background: #020617;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* subtle grid overlay on the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(249,115,115,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(249,115,115,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 2.5rem 0;
}

.section-alt {
  background: radial-gradient(ellipse at top, #060a1e 0%, #020617 60%);
}

.section-inner {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* ── Section Headers ── */
.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 0.5rem;
}

.section-header {
  max-width: 560px;
}

.section-header h2 {
  margin: 0 0 0.4rem;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(2, 6, 23, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}

/* brand */
.brand {
  font-family: var(--mono);
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 0;
}
.brand-prompt { color: var(--success); }
.brand-sep    { color: var(--muted-soft); margin: 0 1px; }
.brand-path   { color: var(--muted); }
.brand-cursor {
  color: var(--accent);
  animation: blink 1s steps(2, start) infinite;
  margin-left: 2px;
  font-size: 0.9em;
}

/* nav */
.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted-soft);
  text-decoration: none;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  transition: color var(--t-fast), background var(--t-fast);
}

.nav-links a:hover {
  color: var(--accent-strong);
  background: rgba(249, 115, 115, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--muted-soft);
  transition: transform var(--t-med) var(--ease-out);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.42rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: lowercase;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--t-fast),
    color var(--t-fast),
    border-color var(--t-fast),
    box-shadow var(--t-fast),
    transform var(--t-fast);
}

.btn-lg {
  padding: 0.55rem 1.25rem;
  font-size: 0.8rem;
}

.btn-primary {
  background: linear-gradient(135deg, #dc2626, #f97316);
  color: #fff5f5;
  box-shadow: 0 10px 28px rgba(220, 38, 38, 0.45);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(220, 38, 38, 0.6);
}

.btn-outline {
  border-color: rgba(148, 163, 184, 0.3);
  color: var(--text);
  background: rgba(15, 23, 42, 0.8);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
  box-shadow: 0 0 16px rgba(249, 115, 115, 0.1);
}

.btn-ghost {
  border-color: rgba(148, 163, 184, 0.2);
  color: var(--muted);
  background: transparent;
}
.btn-ghost:hover {
  color: var(--accent-strong);
  background: rgba(249, 115, 115, 0.06);
}

.btn-nav { font-size: 0.68rem; padding: 0.32rem 0.8rem; }

/* ============================================================
   TAGS / CHIPS
   ============================================================ */
.tag {
  font-family: var(--mono);
  font-size: 0.67rem;
  border-radius: 999px;
  padding: 0.12rem 0.55rem;
  background: rgba(249, 115, 115, 0.08);
  color: var(--accent-strong);
  letter-spacing: 0.04em;
}

.tag-muted {
  background: rgba(107, 114, 128, 0.15);
  color: var(--muted);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 4.5rem 0 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: flex-start;
}

/* terminal */
.terminal-card {
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, #0d1526 0%, #020617 70%);
  border: 1px solid rgba(255,255,255,0.07);
  box-shadow: var(--shadow-soft), 0 0 0 1px rgba(0,0,0,0.5) inset;
  overflow: hidden;
  font-family: var(--mono);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  background: rgba(0,0,0,0.25);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red   { background: #ef4444; box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.dot-amber { background: #fbbf24; box-shadow: 0 0 6px rgba(251,191,36,0.4); }
.dot-green { background: #22c55e; box-shadow: 0 0 6px rgba(34,197,94,0.5); }

.terminal-title {
  margin-left: 0.3rem;
  font-size: 0.68rem;
  color: var(--muted-soft);
}

.terminal-body {
  padding: 1rem 1.1rem 1.2rem;
  font-size: 0.79rem;
  line-height: 1.65;
  color: #e5e7eb;
  min-height: 260px;
  position: relative;
}

#terminal-output {
  margin: 0;
  white-space: pre-wrap;
}

.terminal-cursor {
  display: inline-block;
  width: 7px;
  height: 1.1em;
  margin-left: 1px;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
  0%, 50%  { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* hero details */
.hero-details {
  padding-top: 0.5rem;
}

.hero-tagline {
  margin: 0 0 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.hero-details h1 {
  margin: 0 0 0.8rem;
  font-size: 2.9rem;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-blurb {
  margin: 0 0 1.4rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1.2rem;
  margin: 0 0 1.4rem;
  padding: 0;
}

.hero-meta div { display: flex; flex-direction: column; gap: 0.15rem; }

.hero-meta dt {
  font-family: var(--mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted-soft);
}

.hero-meta dd {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text);
}

/* stat pills */
.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
}

.stat-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  background: rgba(249, 115, 115, 0.07);
  border: 1px solid rgba(249, 115, 115, 0.15);
  min-width: 62px;
}

.stat-num {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent-strong);
  line-height: 1;
}

.stat-label {
  font-size: 0.6rem;
  color: var(--muted-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ticker / tool strip */
.ticker-wrap {
  margin-top: 3.5rem;
  padding: 0.7rem 0;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(249, 115, 115, 0.025);
  position: relative;
  z-index: 1;
}

.ticker-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: ticker 38s linear infinite;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted-soft);
  align-items: center;
}

.ticker-track span { white-space: nowrap; }
.ticker-track .sep { color: var(--accent); font-size: 0.55rem; }

@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   ENGAGEMENTS
   ============================================================ */
.engagements-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.eng-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #080f22 0%, #020617 60%);
  border: 1px solid var(--border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

.eng-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.eng-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.eng-type {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted-soft);
  padding: 0.12rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.eng-type.client { color: var(--accent); border-color: rgba(249,115,115,0.2); }

.eng-icon { font-size: 1.6rem; }

.eng-card h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

.eng-subtitle {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted-soft);
}

.eng-body {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.eng-highlights {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.eng-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.4rem;
}

/* background callout bar */
.bg-callout {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.1rem 1.4rem;
  border-radius: var(--radius-lg);
  background: rgba(249, 115, 115, 0.04);
  border: 1px solid rgba(249, 115, 115, 0.1);
}

.bg-callout-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.bg-callout-body {
  flex: 1;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
}

.bg-callout-body strong { color: var(--text); }

.bg-callout-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex-shrink: 0;
}

/* ============================================================
   LABS
   ============================================================ */
.labs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.lab-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #080f22 0%, #020617 60%);
  border: 1px solid var(--border);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

.lab-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.lab-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.lab-badge {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  background: rgba(249, 115, 115, 0.08);
  border: 1px solid rgba(249, 115, 115, 0.15);
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  align-self: flex-start;
}

.lab-card h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.3;
}

.lab-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.6;
}

.lab-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.lab-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.3rem;
}

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.cert-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #080f22 0%, #020617 70%);
  border: 1px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

.cert-card:hover {
  border-color: rgba(249, 115, 115, 0.35);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.cert-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cert-num {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.cert-issuer {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cert-name {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.35;
}

.cert-desc {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
  flex: 1;
}

.cert-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.3rem;
  border-top: 1px solid var(--border);
}

.cert-id {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted-soft);
  letter-spacing: 0.05em;
}

.cert-badge {
  font-family: var(--mono);
  font-size: 0.6rem;
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.cert-badge.psaa    { background: rgba(34,197,94,0.12);  color: #4ade80; }
.cert-badge.comptia { background: rgba(251,191,36,0.12); color: #fbbf24; }
.cert-badge.thm     { background: rgba(239,68,68,0.12);  color: #f87171; }
.cert-badge.sc      { background: rgba(129,140,248,0.12);color: #a5b4fc; }
.cert-badge.postman { background: rgba(249,115,22,0.12); color: #fb923c; }

/* ============================================================
   BLOGS / WRITING
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.blog-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #080f22 0%, #020617 65%);
  border: 1px solid var(--border);
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

.blog-card:hover {
  border-color: rgba(249, 115, 115, 0.4);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.blog-card-featured {
  border-color: rgba(249, 115, 115, 0.2);
}

.blog-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.blog-date {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted-soft);
  letter-spacing: 0.06em;
}

.blog-tag-chip {
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: rgba(249, 115, 115, 0.08);
  color: var(--accent-strong);
  border: 1px solid rgba(249, 115, 115, 0.15);
}

.featured-chip {
  background: rgba(249, 115, 115, 0.15);
  border-color: rgba(249, 115, 115, 0.3);
}

.blog-card h3 {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.4;
  color: var(--text);
}

.blog-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}

.blog-read {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  margin-top: auto;
  transition: letter-spacing var(--t-fast);
}

.blog-card:hover .blog-read {
  letter-spacing: 0.04em;
}

.blog-cta {
  display: flex;
  justify-content: center;
  margin-top: 0.5rem;
}

/* ============================================================
   ACHIEVEMENTS
   ============================================================ */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.achieve-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #080f22 0%, #020617 65%);
  border: 1px solid var(--border);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

.achieve-card:hover {
  border-color: rgba(249, 115, 115, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.achieve-num {
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 600;
  color: rgba(249, 115, 115, 0.18);
  line-height: 1;
  letter-spacing: -0.02em;
}

.achieve-card h3 {
  margin: 0 0 0.3rem;
  font-size: 0.93rem;
  line-height: 1.3;
}

.achieve-card p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.6;
}

.achieve-card strong { color: var(--text); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.contact-body p {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

.contact-availability {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted-soft);
  margin-top: 1.2rem;
}

.avail-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.7; transform: scale(0.85); }
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 1.5rem 0 1.8rem;
  border-top: 1px solid var(--border);
  background: #020617;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted-soft);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.back-to-top {
  color: var(--muted-soft);
  text-decoration: none;
  transition: color var(--t-fast);
}

.back-to-top:hover { color: var(--accent-strong); }

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============================================================
   RESPONSIVE — 960px
   ============================================================ */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .certs-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .achieve-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
  }

  .bg-callout {
    flex-wrap: wrap;
  }
}

/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.97);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 0.8rem 1.5rem 1rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t-med) var(--ease-out), opacity var(--t-med);
  }

  .nav-links a { width: 100%; padding: 0.35rem 0.2rem; }

  .nav.open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav.open .nav-toggle-line:nth-child(1) { transform: translateY(3px) rotate(45deg); }
  .nav.open .nav-toggle-line:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

  .btn-nav { display: none; }

  .engagements-grid,
  .labs-grid,
  .certs-grid,
  .blog-grid,
  .achieve-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ============================================================
   RESPONSIVE — 480px
   ============================================================ */
@media (max-width: 480px) {
  .section { padding: 3.8rem 0; }
  .container { padding: 0 1rem; }

  .hero { padding-top: 3rem; }

  .hero-details h1 { font-size: 2.2rem; }

  .hero-meta { grid-template-columns: minmax(0, 1fr); }

  .section-header h2 { font-size: 1.6rem; }
}