/* ═══════════════════════════════════════════════
   TURING NEURAL SYSTEMS — GLOBAL STYLESHEET
   Palette: Navy #0B1628 · White #F5F5F0 · Yellow #CAFF00
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

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

:root {
  --navy:      #0B1628;
  --navy-mid:  #122040;
  --navy-light:#1A2E55;
  --yellow:    #CAFF00;
  --yellow-dim: #a8d600;
  --white:     #F5F5F0;
  --white-dim: rgba(245,245,240,0.55);
  --white-faint:rgba(245,245,240,0.08);
  --border:    rgba(245,245,240,0.12);
  --font-head: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'DM Sans', sans-serif;
  --radius:    4px;
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ─── NOISE OVERLAY ────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
}

/* ─── SCROLLBAR ─────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--yellow); border-radius: 2px; }

/* ─── GRID BACKGROUND ───────────────────────────── */
.grid-bg {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.grid-bg::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

/* ─── TYPOGRAPHY ────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.1; }
h1 { font-size: clamp(2rem, 5vw, 4rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 5vw, 4rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; }

.mono { font-family: var(--font-mono); }
.yellow { color: var(--yellow); }
.dim { color: var(--white-dim); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.5rem;
}
.section-label::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--yellow);
}

/* ─── LAYOUT ────────────────────────────────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

section { position: relative; }

/* ─── NAVBAR ────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.5rem 0;
  transition: background var(--transition), padding var(--transition), backdrop-filter var(--transition);
}
#navbar.scrolled {
  background: rgba(11,22,40,0.9);
  backdrop-filter: blur(16px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo img {
  height: 40px; width: auto;
  filter: brightness(0) invert(1);
}
.nav-menu {
  display: flex; align-items: center; gap: 2.5rem;
}
.nav-menu a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white-dim);
  transition: color 0.25s;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute; bottom: -3px; left: 0; right: 0;
  height: 1px; background: var(--yellow);
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--white); }
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.6rem 1.4rem;
  background: var(--yellow);
  color: var(--navy);
  border-radius: var(--radius);
  font-weight: 500;
  transition: background 0.25s, transform 0.2s;
}
.nav-cta:hover { background: #d8ff26; transform: translateY(-1px); }

.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--white); border-radius: 1px;
  transition: all 0.3s;
}

/* ─── BUTTONS ───────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--yellow);
  color: var(--navy);
}
.btn-primary:hover {
  background: #d8ff26;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(202,255,0,0.25);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--yellow);
  color: var(--yellow);
  transform: translateY(-2px);
}
.btn svg { transition: transform 0.3s; }
.btn:hover svg { transform: translateX(4px); }

/* ─── HERO ──────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 0 5rem;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 12px;
}
.hero-eyebrow::before {
  content: ''; width: 32px; height: 1px; background: var(--yellow);
}
.hero-title { margin-bottom: 1.5rem; }
.hero-title em {
  font-style: normal; color: var(--yellow);
  display: block;
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--white-dim);
  max-width: 500px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero-orb {
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, rgba(202,255,0,0.15), transparent 65%),
              radial-gradient(circle at 70% 70%, rgba(26,46,85,0.8), var(--navy-mid));
  border: 1px solid var(--border);
  position: relative;
  animation: orb-pulse 6s ease-in-out infinite;
}
@keyframes orb-pulse {
  0%,100% { transform: scale(1); box-shadow: 0 0 60px rgba(202,255,0,0.06); }
  50%      { transform: scale(1.03); box-shadow: 0 0 100px rgba(202,255,0,0.12); }
}
.orb-ring {
  position: absolute; inset: -20px; border-radius: 50%;
  border: 1px solid rgba(202,255,0,0.15);
  animation: ring-spin 20s linear infinite;
}
.orb-ring:nth-child(2) { inset: -45px; border-color: rgba(202,255,0,0.07); animation-duration: 30s; animation-direction: reverse; }
@keyframes ring-spin { to { transform: rotate(360deg); } }

.orb-stats {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 1.5rem;
  text-align: center;
}
.orb-stat-item .stat-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--yellow);
  line-height: 1;
}
.orb-stat-item .stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white-dim);
  margin-top: 4px;
}

.hero-floating-card {
  position: absolute;
  background: rgba(26,46,85,0.8);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.hero-floating-card.card-1 { top: 10%; left: -60px; }
.hero-floating-card.card-2 { bottom: 15%; right: -40px; }
.card-tag {
  color: var(--yellow);
  font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 4px;
}
.card-val { color: var(--white); font-size: 0.85rem; }

/* ─── MARQUEE ───────────────────────────────────── */
.marquee-section {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.marquee-track {
  display: flex; gap: 4rem; width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-section:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  white-space: nowrap;
  display: flex; align-items: center; gap: 1.5rem;
}
.marquee-item::after {
  content: '◆';
  color: var(--yellow);
  font-size: 0.5rem;
}

/* ─── SERVICES ──────────────────────────────────── */
#servicios { padding: 8rem 0; }
.services-header { max-width: 700px; margin-bottom: 5rem; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.service-card {
  background: var(--navy);
  padding: 2.5rem 2rem;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(202,255,0,0.04), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.service-card:hover { background: var(--navy-mid); }
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--yellow);
  transition: border-color var(--transition), background var(--transition);
}
.service-card:hover .service-icon {
  border-color: var(--yellow);
  background: rgba(202,255,0,0.08);
}
.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}
.service-card p { font-size: 0.9rem; color: var(--white-dim); line-height: 1.7; }

.service-num {
  position: absolute; bottom: 1.5rem; right: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(245,245,240,0.15);
  letter-spacing: 0.1em;
}

/* ─── PROJECTS ──────────────────────────────────── */
#proyectos { padding: 8rem 0; }
.projects-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 4rem; flex-wrap: wrap; gap: 2rem;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.project-card {
  background: var(--navy);
  padding: 3rem;
  position: relative; overflow: hidden;
  transition: background var(--transition);
  display: flex; flex-direction: column; gap: 1rem;
}
.project-card:hover { background: var(--navy-mid); }
.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.project-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--yellow);
  background: rgba(202,255,0,0.1);
  padding: 0.3rem 0.75rem;
  border-radius: 2px;
  display: inline-block;
  width: fit-content;
}
.project-card h3 { margin-bottom: 0.5rem; }
.project-card p { color: var(--white-dim); font-size: 0.9rem; line-height: 1.7; }
.project-meta {
  display: flex; gap: 1.5rem; flex-wrap: wrap;
  margin-top: auto; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.project-meta span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--white-dim);
  letter-spacing: 0.08em;
}
.project-meta strong { color: var(--white); font-weight: 400; }

.project-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--navy-light), var(--navy-mid));
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.project-visual::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(202,255,0,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(202,255,0,0.05) 1px, transparent 1px);
  background-size: 30px 30px;
}
.pv-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--yellow);
  text-transform: uppercase;
  z-index: 1;
}
.project-arrow {
  position: absolute; top: 2rem; right: 2rem;
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white-dim);
  transition: all var(--transition);
}
.project-card:hover .project-arrow {
  border-color: var(--yellow);
  color: var(--yellow);
  transform: rotate(45deg);
}

/* ─── STATS BAND ────────────────────────────────── */
#stats {
  padding: 6rem 0;
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-item {}
.stat-number {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 500;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 0.5rem;
  display: block;
}
.stat-desc {
  font-size: 0.85rem;
  color: var(--white-dim);
  line-height: 1.5;
}

/* ─── I+D SECTION ───────────────────────────────── */
#investigacion { padding: 8rem 0; }
.research-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.research-sticky { position: sticky; top: 8rem; }
.research-list { display: flex; flex-direction: column; gap: 1px; }
.research-item {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.research-item::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--yellow);
  transform: scaleY(0); transform-origin: top;
  transition: transform var(--transition);
}
.research-item:hover, .research-item.active {
  background: var(--navy-light);
  border-color: rgba(202,255,0,0.2);
}
.research-item:hover::before, .research-item.active::before { transform: scaleY(1); }
.research-item h4 { margin-bottom: 0.5rem; font-size: 0.85rem; }
.research-item p { font-size: 0.85rem; color: var(--white-dim); line-height: 1.6; }
.research-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 0.5rem;
}

/* ─── CTA SECTION ───────────────────────────────── */
#cta {
  padding: 10rem 0;
  text-align: center;
  position: relative; overflow: hidden;
}
#cta::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(202,255,0,0.06), transparent);
}
.cta-title { margin-bottom: 1.5rem; }
.cta-title span { color: var(--yellow); }
.cta-desc { color: var(--white-dim); max-width: 560px; margin: 0 auto 3rem; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ─── FOOTER ────────────────────────────────────── */
#footer {
  padding: 5rem 0 2rem;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}
.footer-brand img {
  height: 36px; width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 1.25rem;
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--white-dim);
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1.25rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--white-dim);
  transition: color 0.25s;
}
.footer-col ul li a:hover { color: var(--white); }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(245,245,240,0.3);
  letter-spacing: 0.05em;
}

/* ─── PAGE HERO (inner pages) ───────────────────── */
.page-hero {
  padding: 12rem 0 6rem;
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 12px;
}
.page-hero-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--yellow); }
.page-hero h1 { max-width: 900px; margin-bottom: 1.5rem; }
.page-hero p { color: var(--white-dim); font-size: 1.1rem; max-width: 600px; line-height: 1.75; }

/* ─── ABOUT PAGE ────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  padding: 8rem 0;
}
.about-visual {
  aspect-ratio: 1;
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 8px;
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}
.value-item {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--navy-mid);
}
.value-item h4 { margin-bottom: 0.5rem; }
.value-item p { font-size: 0.85rem; color: var(--white-dim); }

.team-section { padding: 6rem 0; }
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}
.team-card {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: all var(--transition);
}
.team-card:hover {
  border-color: rgba(202,255,0,0.2);
  transform: translateY(-4px);
}
.team-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy-light), var(--navy));
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--yellow);
}
.team-card h3 { font-size: 1rem; margin-bottom: 0.25rem; }
.team-role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 0.75rem;
}
.team-card p { font-size: 0.85rem; color: var(--white-dim); }

/* ─── CONTACT PAGE ──────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  padding: 6rem 0;
  align-items: start;
}
.contact-info { position: sticky; top: 8rem; }
.contact-item {
  display: flex; gap: 1rem; align-items: flex-start;
  margin-bottom: 2rem;
}
.contact-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--yellow);
}
.contact-item h4 { font-size: 0.7rem; letter-spacing: 0.1em; color: var(--white-dim); margin-bottom: 0.25rem; }
.contact-item p { font-size: 0.95rem; }

.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-dim);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--white);
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s;
  width: 100%;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(245,245,240,0.25); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--yellow); }
.form-group textarea { resize: vertical; min-height: 140px; }

/* ─── SCROLL REVEAL ─────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ─── RESPONSIVE ────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { display: none; }
  .hero-desc { max-width: none; }
  .hero-actions { justify-content: center; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .research-layout { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { position: static; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .mobile-menu {
    display: flex !important;
    flex-direction: column;
    gap: 0;
    position: fixed; inset: 0;
    background: var(--navy);
    z-index: 999;
    justify-content: center; align-items: center;
    gap: 2rem;
  }
  .mobile-menu a {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--white);
    transition: color 0.25s;
  }
  .mobile-menu a:hover { color: var(--yellow); }
}