/* ============================================================
   CALEB ISAAC — Portfolio  |  calebisaac.com
   Clean · Techy · Responsive
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ────────────────────────────────────────────────── */
:root {
  --bg:         #050b0b;
  --bg2:        #090f0f;
  --bg3:        #0d1515;
  --card:       #0f1a1a;
  --card-h:     #132020;
  --green:      #00e5a0;
  --green-dim:  rgba(0,229,160,.10);
  --green-line: rgba(0,229,160,.22);
  --purple:     #7c3aed;
  --grad:       linear-gradient(135deg,#00e5a0 0%,#7c3aed 100%);
  --grad-bg:    linear-gradient(135deg,rgba(0,229,160,.04),rgba(124,58,237,.04));
  --txt:        #dff0e8;
  --txt2:       #7a9e8e;
  --txt3:       #2e4d42;
  --border:     rgba(255,255,255,.06);
  --border-g:   rgba(0,229,160,.20);
  --glow:       0 0 40px rgba(0,229,160,.10);
  --r:          10px;
  --r2:         16px;
  --nav-h:      66px;
  --fh:         'Space Grotesk', sans-serif;
  --fm:         'JetBrains Mono', monospace;
  --fb:         'Inter', sans-serif;
  --ease:       0.3s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html   { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body   { font-family: var(--fb); background: var(--bg); color: var(--txt); line-height: 1.7; overflow-x: hidden; }
img    { max-width: 100%; display: block; }
a      { color: inherit; text-decoration: none; transition: color var(--ease); }
ul     { list-style: none; }
button { cursor: pointer; font-family: inherit; }

::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 2px; }

/* ── Layout ────────────────────────────────────────────────── */
.wrap    { max-width: 1080px; margin: 0 auto; padding: 0 clamp(20px,4vw,40px); }
.section { padding: clamp(72px,10vw,108px) 0; }

/* ── Section labels ─────────────────────────────────────────── */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--fm); font-size: .7rem; font-weight: 500;
  color: var(--green); letter-spacing: .14em; text-transform: uppercase;
  background: var(--green-dim); border: 1px solid var(--green-line);
  border-radius: 100px; padding: 4px 14px; margin-bottom: 16px;
}
.chip::before {
  content: ''; width: 5px; height: 5px;
  background: var(--green); border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.2} }

.h2  { font-family: var(--fh); font-size: clamp(1.75rem,3.5vw,2.5rem); font-weight: 700; line-height: 1.2; margin-bottom: 12px; }
.lead{ font-size: 1rem; color: var(--txt2); max-width: 520px; line-height: 1.85; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 24px; border-radius: var(--r); border: none;
  font-family: var(--fb); font-size: .88rem; font-weight: 600;
  transition: all var(--ease); white-space: nowrap; cursor: pointer;
}
.btn-primary { background: var(--grad); color: #040e0b; box-shadow: 0 4px 24px rgba(0,229,160,.18); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,229,160,.3); color: #040e0b; }
.btn-ghost   { background: transparent; color: var(--txt); border: 1px solid var(--border-g); }
.btn-ghost:hover { background: var(--green-dim); border-color: var(--green); color: var(--green); transform: translateY(-2px); }
.btn-sm  { padding: 8px 18px; font-size: .82rem; }
.arrow   { transition: transform var(--ease); display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }

/* ── Nav ───────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 1000;
  transition: background var(--ease), border-color var(--ease), backdrop-filter var(--ease);
}
.nav.up {
  background: rgba(5,11,11,.93);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  max-width: 1080px; margin: 0 auto;
  padding: 0 clamp(20px,4vw,40px);
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  font-family: var(--fm); font-size: .95rem; font-weight: 500;
  display: flex; align-items: center; gap: 2px;
}
.nav-brand .g   { color: var(--green); }
.nav-brand .cur {
  display: inline-block; width: 2px; height: 1em;
  background: var(--green); margin-left: 2px; vertical-align: middle;
  animation: blink 1s step-end infinite;
}
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  padding: 6px 12px; border-radius: 8px;
  font-family: var(--fm); font-size: .78rem; color: var(--txt2);
  transition: all var(--ease);
}
.nav-links a .n { color: var(--green); font-size: .7rem; margin-right: 3px; opacity: .7; }
.nav-links a:hover,
.nav-links a.active { color: var(--green); background: var(--green-dim); }

/* Hamburger */
.ham { display: none; flex-direction: column; gap: 5px; padding: 8px; background: none; border: none; }
.ham span { display: block; width: 22px; height: 2px; background: var(--txt); border-radius: 2px; transition: all var(--ease); }
.ham.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ham.open span:nth-child(2) { opacity: 0; }
.ham.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mob-menu {
  display: none; position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: rgba(5,11,11,.97);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 20px clamp(20px,4vw,40px);
  flex-direction: column; gap: 6px; z-index: 999;
}
.mob-menu.open { display: flex; }
.mob-menu a {
  padding: 10px 14px; border-radius: 8px;
  font-family: var(--fm); font-size: .88rem; color: var(--txt2);
  transition: all var(--ease);
}
.mob-menu a:hover { color: var(--green); background: var(--green-dim); }
.mob-menu .btn { margin-top: 10px; justify-content: center; width: 100%; }

/* ── Hero  ─────────────────────────────────────────────────── */
.hero {
  /* FIX: position relative so canvas is contained */
  position: relative;
  /* FIX: use 100vh fallback before 100svh */
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}

/* Canvas — absolutely fills .hero */
#canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: block;          /* removes inline gap */
  pointer-events: none;
}

/* Radial vignette so text stays readable */
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 75% 75% at 50% 50%,
    transparent 15%, rgba(5,11,11,.55) 70%, var(--bg) 100%);
}
/* Bottom fade into next section */
.hero-fade {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 180px; pointer-events: none;
  background: linear-gradient(transparent, var(--bg));
}

.hero-inner {
  position: relative; z-index: 2;
  width: 100%; max-width: 1080px;
  margin: 0 auto;
  padding: clamp(20px,4vw,40px);
  padding-bottom: 80px;
}

/* Terminal path */
.term-path {
  font-family: var(--fm); font-size: .8rem;
  color: var(--txt3); margin-bottom: 24px;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.term-path .sym  { color: var(--green); }
.term-path .path { color: var(--green); opacity: .5; }
.term-path .cmd  { color: var(--txt2); }

/* Name */
.hero-name {
  font-family: var(--fh);
  font-size: clamp(3rem,9vw,7rem);
  font-weight: 700; line-height: .95;
  letter-spacing: -.03em; margin-bottom: 18px;
}

/* Typewriter role */
.hero-role {
  font-family: var(--fm);
  font-size: clamp(.88rem,2.2vw,1.1rem);
  color: var(--green); min-height: 1.6em;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 6px;
}
.hero-role .prefix { color: var(--txt3); font-size: .75rem; }
.hero-role .cursor {
  display: inline-block; width: 2px; height: 1.1em;
  background: var(--green); vertical-align: middle;
  animation: blink 1s step-end infinite;
}

/* Bio */
.hero-bio {
  font-size: clamp(.9rem,1.8vw,1.04rem); color: var(--txt2);
  max-width: 580px; line-height: 1.85; margin-bottom: 34px;
}
.hero-bio a {
  color: var(--green);
  border-bottom: 1px solid rgba(0,229,160,.3);
  transition: border-color var(--ease);
}
.hero-bio a:hover { border-color: var(--green); }

/* CTA */
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }

/* Socials */
.socials { display: flex; flex-wrap: wrap; gap: 8px; }
.soc {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 15px; border-radius: 100px;
  background: rgba(255,255,255,.035); border: 1px solid var(--border);
  font-family: var(--fm); font-size: .75rem; color: var(--txt2);
  transition: all var(--ease);
}
.soc:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }

/* Scroll hint */
.scroll-hint {
  position: absolute; bottom: 24px; left: 50%;
  transform: translateX(-50%); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font-family: var(--fm); font-size: .65rem; color: var(--txt3);
  animation: bob 2s ease-in-out infinite;
}
.scroll-hint svg { width: 18px; height: 18px; stroke: var(--txt3); }
@keyframes bob { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(5px)} }

/* ── Profile Photo ─────────────────────────────────────────── */
.avatar-photo-wrap {
  position: relative;
  flex-shrink: 0;
}
.avatar-photo {
  width:  clamp(130px,17vw,190px);
  height: clamp(130px,17vw,190px);
  object-fit: cover;
  object-position: center top;
  border-radius: clamp(16px,3vw,24px);
  border: 2px solid var(--border-g);
  box-shadow: 0 0 32px rgba(0,229,160,.15);
  display: block;
}

/* ── About ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(36px,7vw,80px);
  align-items: start;
}
.avatar-col { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.avatar {
  width: clamp(130px,17vw,190px); height: clamp(130px,17vw,190px);
  background: var(--grad); border-radius: clamp(16px,3vw,24px);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--fh); font-size: clamp(2.2rem,4.5vw,3.8rem);
  font-weight: 700; color: #040e0b; position: relative; flex-shrink: 0;
}
.avatar::after {
  content: ''; position: absolute; inset: -6px;
  border-radius: clamp(20px,3.5vw,28px);
  background: var(--grad); opacity: .13; filter: blur(14px); z-index: -1;
}
.avail-chip {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--fm); font-size: .7rem; color: var(--txt2);
  background: var(--card); border: 1px solid var(--border);
  border-radius: 100px; padding: 5px 14px;
}
.status-dot {
  width: 7px; height: 7px; background: var(--green);
  border-radius: 50%; flex-shrink: 0;
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.8)} }

.about-text p { font-size: .93rem; color: var(--txt2); line-height: 1.9; margin-bottom: 16px; }
.about-text p strong { color: var(--txt); font-weight: 600; }
.pill-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.pill {
  font-family: var(--fm); font-size: .7rem; padding: 4px 12px;
  border-radius: 100px; background: var(--green-dim);
  border: 1px solid var(--green-line); color: var(--green);
}

/* ── Skills ────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px,1fr));
  gap: 14px; margin-top: 44px;
}
.skill-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 22px;
  transition: all var(--ease); position: relative; overflow: hidden;
}
.skill-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity var(--ease);
}
.skill-card:hover { border-color: var(--border-g); transform: translateY(-3px); box-shadow: var(--glow); }
.skill-card:hover::before { opacity: 1; }

.sk-head  { display: flex; align-items: center; gap: 9px; margin-bottom: 14px; }
.sk-ico   { font-size: 1.25rem; }
.sk-name  { font-family: var(--fm); font-size: .73rem; color: var(--green); font-weight: 500; letter-spacing: .04em; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag  {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 5px; padding: 3px 10px;
  font-size: .71rem; color: var(--txt2); font-family: var(--fm);
  transition: all var(--ease);
}
.tag:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }

/* ── Experience ────────────────────────────────────────────── */
.timeline { position: relative; margin-top: 48px; padding-left: 28px; }
.timeline::before {
  content: ''; position: absolute; left: 3px; top: 8px; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--green), var(--purple), rgba(124,58,237,0));
  border-radius: 2px;
}
.tl-item { position: relative; margin-bottom: 44px; }
.tl-item::before {
  content: ''; position: absolute; left: -28px; top: 6px;
  width: 11px; height: 11px; background: var(--green);
  border-radius: 50%; border: 2px solid var(--bg);
  box-shadow: 0 0 12px rgba(0,229,160,.55);
}
.tl-top   { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 5px; }
.tl-role  { font-family: var(--fh); font-size: 1.05rem; font-weight: 600; }
.tl-badge {
  font-family: var(--fm); font-size: .65rem; padding: 2px 10px;
  border-radius: 100px; background: var(--green-dim);
  border: 1px solid var(--green-line); color: var(--green);
}
.tl-meta  { font-family: var(--fm); font-size: .75rem; color: var(--txt3); margin-bottom: 10px; }
.tl-meta .co { color: var(--purple); font-weight: 500; }
.tl-desc  { font-size: .88rem; color: var(--txt2); line-height: 1.85; max-width: 660px; margin-bottom: 12px; }
.tl-bullets { padding-left: 16px; margin-bottom: 12px; }
.tl-bullets li {
  font-size: .85rem; color: var(--txt2); line-height: 1.8; margin-bottom: 6px;
  list-style: none; padding-left: 14px; position: relative;
}
.tl-bullets li::before { content: '▹'; position: absolute; left: 0; color: var(--green); }
.tl-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-tag  {
  font-family: var(--fm); font-size: .68rem; padding: 2px 9px; border-radius: 4px;
  background: rgba(124,58,237,.1); border: 1px solid rgba(124,58,237,.2); color: #a78bfa;
}

/* ── Certifications ────────────────────────────────────────── */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(195px,1fr));
  gap: 14px; margin-top: 44px;
}
.cert {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 22px 18px;
  display: flex; flex-direction: column; gap: 9px;
  transition: all var(--ease);
}
.cert:hover { border-color: var(--border-g); transform: translateY(-3px); box-shadow: var(--glow); }
.cert-ico  { font-size: 1.7rem; }
.cert-name { font-family: var(--fh); font-size: .88rem; font-weight: 600; line-height: 1.3; }
.cert-by   { font-family: var(--fm); font-size: .7rem; color: var(--green); }
.cert-date { font-family: var(--fm); font-size: .68rem; color: var(--txt3); }
.cert-badge {
  align-self: flex-start; font-family: var(--fm); font-size: .63rem;
  padding: 2px 10px; border-radius: 100px;
  background: var(--green-dim); border: 1px solid var(--green-line); color: var(--green);
}

/* ── Education ─────────────────────────────────────────────── */
.edu-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 28px 32px;
  display: flex; align-items: flex-start; gap: 20px;
  margin-top: 44px; transition: all var(--ease);
}
.edu-card:hover { border-color: var(--border-g); box-shadow: var(--glow); }
.edu-ico  { font-size: 2.2rem; flex-shrink: 0; }
.edu-deg  { font-family: var(--fh); font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.edu-uni  { font-size: .9rem; color: var(--txt2); margin-bottom: 4px; }
.edu-year { font-family: var(--fm); font-size: .75rem; color: var(--green); }

/* ── Articles ──────────────────────────────────────────────── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px,1fr));
  gap: 20px;
  margin-top: 44px;
}
.article-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 28px;
  transition: all var(--ease);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.article-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity var(--ease);
}
.article-card:hover {
  border-color: var(--border-g);
  transform: translateY(-4px);
  box-shadow: var(--glow);
}
.article-card:hover::before { opacity: 1; }

.article-pub {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--fm);
  font-size: .72rem;
  color: var(--green);
  font-weight: 500;
}
.article-pub-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2.5s ease-in-out infinite;
}
.article-title {
  font-family: var(--fh);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--txt);
}
.article-desc {
  font-size: .85rem;
  color: var(--txt2);
  line-height: 1.8;
  flex: 1;
}
.article-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.article-tag {
  font-family: var(--fm);
  font-size: .68rem;
  padding: 2px 10px;
  border-radius: 100px;
  background: var(--green-dim);
  border: 1px solid var(--green-line);
  color: var(--green);
}
.article-btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--fm);
  font-size: .78rem;
  font-weight: 500;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid var(--green-line);
  border-radius: var(--r);
  padding: 7px 14px;
  transition: all var(--ease);
}
.article-card:hover .article-btn {
  background: rgba(0,229,160,.18);
  border-color: var(--green);
}

/* ── Contact ───────────────────────────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.25fr;
  gap: clamp(32px,5vw,64px); align-items: start; margin-top: 48px;
}
.contact-info h3  { font-family: var(--fh); font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.contact-info .desc { font-size: .88rem; color: var(--txt2); line-height: 1.85; margin-bottom: 26px; }
.ci       { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.ci-ico   {
  width: 40px; height: 40px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--r);
  display: flex; align-items: center; justify-content: center; font-size: .95rem; flex-shrink: 0;
}
.ci-lbl   { font-family: var(--fm); font-size: .65rem; color: var(--txt3); margin-bottom: 2px; }
.ci-val   { font-size: .88rem; font-weight: 500; }
.ci-val a:hover { color: var(--green); }
.avail-box { margin-top: 24px; padding: 20px; background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); }
.avail-box h4 { font-family: var(--fh); font-size: .95rem; font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.avail-box p  { font-size: .82rem; color: var(--txt2); line-height: 1.75; }

/* Form */
.form-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); padding: clamp(22px,4vw,36px); }
.form-box h3  { font-family: var(--fh); font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.form-box .sub { font-size: .78rem; color: var(--txt2); margin-bottom: 22px; font-family: var(--fm); }
.fg { margin-bottom: 15px; }
.fg label { display: block; font-family: var(--fm); font-size: .7rem; color: var(--txt2); margin-bottom: 6px; }
.fg input, .fg select, .fg textarea {
  width: 100%; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r);
  padding: 11px 14px; font-family: var(--fb); font-size: .88rem; color: var(--txt); outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.fg input::placeholder, .fg textarea::placeholder { color: var(--txt3); }
.fg input:focus, .fg select:focus, .fg textarea:focus {
  border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,229,160,.07);
}
.fg textarea { resize: vertical; min-height: 108px; }
.fg select option { background: var(--bg2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ── Footer ────────────────────────────────────────────────── */
footer { background: var(--bg2); border-top: 1px solid var(--border); padding: clamp(28px,4vw,40px) 0; }
.foot-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 clamp(20px,4vw,40px);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px;
}
.foot-brand { font-family: var(--fm); font-size: .9rem; }
.foot-brand .g { color: var(--green); }
.foot-links { display: flex; gap: 14px; flex-wrap: wrap; }
.foot-links a { font-family: var(--fm); font-size: .78rem; color: var(--txt3); transition: color var(--ease); }
.foot-links a:hover { color: var(--green); }
.foot-copy {
  width: 100%; font-family: var(--fm); font-size: .7rem; color: var(--txt3);
  text-align: center; padding-top: 16px; border-top: 1px solid var(--border); margin-top: 8px;
}

/* ── Scroll animations ─────────────────────────────────────── */
.fade { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.fade.in { opacity: 1; transform: none; }
.fade.d1 { transition-delay: .08s; }
.fade.d2 { transition-delay: .16s; }
.fade.d3 { transition-delay: .24s; }
.fade.d4 { transition-delay: .32s; }
.tl-item { opacity: 0; transform: translateX(-14px); transition: opacity .5s ease, transform .5s ease; }
.tl-item.in { opacity: 1; transform: none; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 860px) {
  .about-grid    { grid-template-columns: 1fr; gap: 36px; }
  .avatar-col    { flex-direction: row; align-items: center; justify-content: flex-start; }
  .contact-grid  { grid-template-columns: 1fr; gap: 32px; }
  .edu-card      { flex-direction: column; gap: 12px; }
}
@media (max-width: 680px) {
  .nav-links, .nav-hire { display: none; }
  .ham  { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
}
@media (max-width: 420px) {
  .certs-grid { grid-template-columns: 1fr 1fr; }
  .hero-name  { letter-spacing: -.04em; }
}