/* ============================================================
   Chibuikem Okonkwo — Portfolio
   Dark cyber / terminal theme
   ============================================================ */

:root {
  /* Surfaces */
  --bg:          #0a0e14;
  --bg-alt:      #0c1119;
  --surface:     #111824;
  --surface-2:   #161f2d;
  --border:      #1d2735;
  --border-glow: #243247;

  /* Text */
  --text:        #ccd6e4;
  --text-dim:    #8493a8;
  --text-faint:  #5a6678;

  /* Accents */
  --primary:     #00ffa3;   /* neon mint-green */
  --primary-dim: #0bbd7c;
  --secondary:   #22d3ee;   /* cyan */
  --warn:        #ffb454;
  --danger:      #ff5f6d;

  /* Effects */
  --glow:        0 0 24px rgba(0, 255, 163, 0.18);
  --glow-strong: 0 0 32px rgba(0, 255, 163, 0.35);
  --radius:      14px;
  --radius-sm:   9px;

  /* Type */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --max:    1140px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-display);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 1.02rem;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
::selection { background: var(--primary); color: #04150e; }

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px; top: 0;
  z-index: 200;
  background: var(--primary);
  color: #04150e;
  padding: .6rem 1rem;
  font-family: var(--font-mono);
  font-weight: 700;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Decorative background ---------- */
#matrix {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  opacity: 0.10;
  pointer-events: none;
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(36, 50, 71, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 50, 71, 0.25) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
.bg-glow {
  position: fixed;
  z-index: 0;
  top: -10%;
  left: 50%;
  width: min(900px, 90vw);
  height: 600px;
  transform: translateX(-50%);
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(0, 255, 163, 0.10), transparent 60%);
  filter: blur(20px);
}

/* keep content above background layers */
.nav, main, .footer, .to-top { position: relative; z-index: 2; }

/* ---------- Layout helpers ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) var(--gutter) 0;
}

.accent { color: var(--primary); }
.prompt { color: var(--primary); font-family: var(--font-mono); font-weight: 700; }

/* ---------- Section titles ---------- */
.section__title {
  display: flex;
  align-items: center;
  gap: .9rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
  white-space: nowrap;
}
.section__num {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 500;
}
.section__line {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, var(--border-glow), transparent);
}
.section__intro {
  color: var(--text-dim);
  max-width: 60ch;
  margin: -1.4rem 0 2.5rem;
}
.subhead {
  font-family: var(--font-mono);
  color: var(--secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 2.5rem 0 1.4rem;
}
.subhead:first-of-type { margin-top: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  padding: .8rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .25s ease, background .2s ease, color .2s ease;
  will-change: transform;
}
.btn--primary {
  background: var(--primary);
  color: #04150e;
  font-weight: 700;
  box-shadow: var(--glow);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: var(--glow-strong); }
.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary-dim);
}
.btn--ghost:hover { background: rgba(0, 255, 163, 0.08); transform: translateY(-3px); }
.btn--lg { padding: 1rem 2rem; font-size: 1rem; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s ease, backdrop-filter .3s ease, box-shadow .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 14, 20, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}
.brand__bracket { color: var(--primary); }
.brand__name { color: var(--text); }
.brand__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--primary);
  margin-left: 6px;
  box-shadow: var(--glow);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-dim);
  transition: color .2s ease;
}
.nav__links a:hover, .nav__links a.active { color: var(--primary); }
.nav__num { color: var(--primary); margin-right: .25rem; }
.nav__cta {
  border: 1px solid var(--primary-dim);
  border-radius: var(--radius-sm);
  padding: .5rem 1rem;
  color: var(--primary) !important;
}
.nav__cta:hover { background: rgba(0, 255, 163, 0.08); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__toggle span {
  width: 26px; height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.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); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: .35rem;
  padding: 0 var(--gutter);
  max-height: 0;
  overflow: hidden;
  background: rgba(10, 14, 20, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: max-height .35s ease, padding .35s ease;
}
.mobile-menu.open { max-height: 380px; padding: .5rem var(--gutter) 1.4rem; }
.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-dim);
  padding: .7rem 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:hover { color: var(--primary); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding: 7rem var(--gutter) 4rem;
}
.hero__greeting {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 1.1rem;
}
.hero__name {
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: #eaf0f7;
  position: relative;
}
.hero__tagline {
  font-size: clamp(1.4rem, 5vw, 2.6rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-dim);
  margin-top: .35rem;
}
.hero__blurb {
  color: var(--text-dim);
  max-width: 52ch;
  margin-top: 1.6rem;
  font-size: 1.05rem;
}
.hero__blurb strong { color: var(--text); font-weight: 600; }
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
}
.hero__socials {
  display: flex;
  gap: 1.2rem;
  margin-top: 2.4rem;
}
.hero__socials a {
  color: var(--text-dim);
  transition: color .2s ease, transform .2s ease;
}
.hero__socials a:hover { color: var(--primary); transform: translateY(-3px); }

/* Glitch effect on name */
.hero__name::before,
.hero__name::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}
.hero:hover .hero__name::before {
  opacity: 0.8;
  color: var(--secondary);
  animation: glitch-1 .4s steps(2) 1;
}
.hero:hover .hero__name::after {
  opacity: 0.8;
  color: var(--danger);
  animation: glitch-2 .4s steps(2) 1;
}
@keyframes glitch-1 {
  0%{clip-path:inset(0 0 80% 0);transform:translate(-3px,-2px)}
  50%{clip-path:inset(40% 0 20% 0);transform:translate(3px,2px)}
  100%{clip-path:inset(80% 0 0 0);transform:translate(0)}
}
@keyframes glitch-2 {
  0%{clip-path:inset(70% 0 5% 0);transform:translate(3px,2px)}
  50%{clip-path:inset(10% 0 60% 0);transform:translate(-3px,-2px)}
  100%{clip-path:inset(0 0 75% 0);transform:translate(0)}
}

/* Terminal */
.hero__terminal { width: 100%; }
.terminal {
  background: linear-gradient(180deg, var(--surface), var(--bg-alt));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 30px 60px rgba(0,0,0,.45), var(--glow);
  overflow: hidden;
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.terminal__dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal__dot--red { background: #ff5f56; }
.terminal__dot--amber { background: #ffbd2e; }
.terminal__dot--green { background: #27c93f; }
.terminal__title {
  margin-left: .6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}
.terminal__body {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.85;
  padding: 1.4rem;
  min-height: 320px;
  color: var(--text);
}
.terminal__body .t-cmd { color: var(--text); }
.terminal__body .t-cmd .prompt { margin-right: .5rem; }
.terminal__body .t-out { color: var(--text-dim); }
.terminal__body .t-ok { color: var(--primary); }
.terminal__body .t-key { color: var(--secondary); }
.terminal__cursor {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  background: var(--primary);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
  box-shadow: var(--glow);
}
@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about__text p { color: var(--text-dim); margin-bottom: 1.1rem; max-width: 60ch; }
.about__text strong { color: var(--text); font-weight: 600; }
.about__stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem 1.5rem;
  margin-top: 1rem;
}
.about__stack li {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-dim);
  position: relative;
  padding-left: 1.3rem;
}
.about__stack li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--primary);
}
.about__stats {
  display: grid;
  gap: 1rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  transition: border-color .25s ease, transform .25s ease;
}
.stat:hover { border-color: var(--border-glow); transform: translateX(4px); }
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  text-shadow: var(--glow);
}
.stat__label {
  display: block;
  margin-top: .5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.skill-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: 0 18px 40px rgba(0,0,0,.35); }
.skill-card:hover::before { transform: scaleX(1); }
.skill-card__title {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
  color: var(--text);
}
.skill-card__title svg { color: var(--primary); flex-shrink: 0; }

.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .35rem .65rem;
  transition: color .2s ease, border-color .2s ease;
}
.skill-card:hover .tag-list li { color: var(--text); }

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline { position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--border) 70%);
  opacity: .5;
}
.tl-item {
  position: relative;
  padding-left: 2.6rem;
  padding-bottom: 2.8rem;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item__marker {
  position: absolute;
  left: 0; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--primary);
  box-shadow: var(--glow);
}
.tl-item__marker::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--primary);
  transform: scale(0);
  transition: transform .3s ease;
}
.tl-item:hover .tl-item__marker::after { transform: scale(1); }
.tl-item__content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.7rem;
  transition: border-color .25s ease, transform .25s ease;
}
.tl-item:hover .tl-item__content { border-color: var(--border-glow); transform: translateX(5px); }
.tl-item__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .5rem 1rem;
}
.tl-item__head h3 { font-size: 1.15rem; font-weight: 600; color: var(--text); }
.tl-item__at { color: var(--primary); }
.tl-item__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  white-space: nowrap;
}
.tl-item__meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--secondary);
  margin: .3rem 0 1rem;
}
.tl-item__points li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: .65rem;
  color: var(--text-dim);
  font-size: 0.96rem;
}
.tl-item__points li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--primary);
}
.tl-item__points strong { color: var(--text); font-weight: 600; }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.4rem;
}
.project {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.7rem;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.project:hover { transform: translateY(-8px); border-color: var(--border-glow); box-shadow: 0 22px 45px rgba(0,0,0,.4); }
.project__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}
.project__folder { color: var(--primary); }
.project__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: .25rem .7rem;
}
.project__title { font-size: 1.2rem; font-weight: 600; color: var(--text); margin-bottom: .6rem; }
.project:hover .project__title { color: var(--primary); }
.project__desc { color: var(--text-dim); font-size: 0.94rem; flex-grow: 1; }
.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 1.3rem;
}
.project__stack li {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-faint);
}

/* ============================================================
   CERTIFICATIONS & EDUCATION
   ============================================================ */
.certs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.cert {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  transition: transform .2s ease, background .2s ease;
}
.cert:hover { transform: translateX(5px); background: var(--surface-2); }
.cert__issuer {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  margin-bottom: .25rem;
}
.cert__name { display: block; font-size: 0.95rem; color: var(--text); font-weight: 500; }

.education {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.2rem;
}
.edu {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
  transition: border-color .25s ease, transform .25s ease;
}
.edu:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.edu__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.edu__head h4 { font-size: 1.1rem; font-weight: 600; color: var(--text); }
.edu__date { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); white-space: nowrap; }
.edu__degree { color: var(--text); margin: .5rem 0 .35rem; font-size: 0.98rem; }
.edu__meta { color: var(--text-dim); font-size: 0.86rem; }

/* ============================================================
   CONTACT
   ============================================================ */
.section--contact {
  text-align: center;
  max-width: 760px;
  padding-bottom: 2rem;
}
.contact__pre {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.contact__pre .section__num { font-size: 0.9rem; }
.contact__title {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #eaf0f7;
  margin-bottom: 1.2rem;
}
.contact__blurb {
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0 auto 2.2rem;
}
.contact__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  margin-top: 3rem;
}
.contact__list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
}
.contact__list svg { color: var(--primary); flex-shrink: 0; }
.contact__list a { transition: color .2s ease; }
.contact__list a:hover { color: var(--primary); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  text-align: center;
  padding: 3.5rem var(--gutter) 2.5rem;
  margin-top: 4rem;
  border-top: 1px solid var(--border);
}
.footer__line {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-dim);
}
.footer__sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: .5rem;
}

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  bottom: 1.6rem;
  right: 1.6rem;
  z-index: 90;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  background: var(--surface);
  border: 1px solid var(--primary-dim);
  border-radius: 50%;
  color: var(--primary);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease, box-shadow .3s ease, background .2s ease;
}
.to-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover { box-shadow: var(--glow); background: var(--surface-2); }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s cubic-bezier(.2,.7,.3,1), transform .6s cubic-bezier(.2,.7,.3,1);
}
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 8rem;
  }
  .hero__terminal { order: 2; max-width: 540px; }
  .about { grid-template-columns: 1fr; }
  .about__stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .mobile-menu { display: flex; }
  .section__title { white-space: normal; }
  .section__line { display: none; }
}

@media (max-width: 480px) {
  body { font-size: 0.98rem; }
  .about__stats { grid-template-columns: 1fr; }
  .hero__cta .btn { flex: 1 1 auto; justify-content: center; }
  .terminal__body { font-size: 0.78rem; min-height: 280px; }
  .to-top { bottom: 1rem; right: 1rem; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  #matrix { display: none; }
}