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

:root {
  --blue: #3b82f6;
  --indigo: #6366f1;
  --dark: #1e293b;
  --mid: #334155;
  --muted: #64748b;
  --light: #94a3b8;
  --bg: #f1f5f9;
  --bg2: #e2e8f0;
  --white: #ffffff;
  --grad: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  --grad-dark: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.14);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== TYPOGRAPHY ===== */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -1px; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.5px; }
h3 { font-size: 1.2rem; font-weight: 700; line-height: 1.3; }
p  { color: var(--mid); }

/* ===== LAYOUT ===== */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-header .badge { display: inline-block; background: rgba(59,130,246,.1); color: var(--blue); font-size: .75rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: 4px 14px; border-radius: 100px; margin-bottom: 12px; }
.section-header p { font-size: 1.05rem; color: var(--muted); margin-top: 12px; }

/* ===== NAV ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: box-shadow var(--transition);
}
nav.scrolled { box-shadow: var(--shadow); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo img { height: 44px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: .9rem; font-weight: 600; color: var(--mid); transition: color var(--transition); }
.nav-links a:hover { color: var(--blue); }
.nav-cta { background: var(--grad); color: var(--white) !important; padding: 9px 22px; border-radius: 8px; font-weight: 700 !important; transition: opacity var(--transition), box-shadow var(--transition) !important; }
.nav-cta:hover { opacity: .9; box-shadow: 0 4px 16px rgba(99,102,241,.35) !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--dark); border-radius: 2px; transition: var(--transition); }
.nav-toggle span + span { margin-top: 5px; }

/* ===== HERO ===== */
#hero {
  padding: 160px 0 100px;
  background: linear-gradient(160deg, #f8faff 0%, #eef2ff 60%, #f1f5f9 100%);
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 70% 30%, rgba(99,102,241,.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(59,130,246,.1); color: var(--blue); font-size: .8rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 6px 16px; border-radius: 100px; margin-bottom: 20px; border: 1px solid rgba(59,130,246,.2); }
.hero-badge span { width: 6px; height: 6px; background: var(--blue); border-radius: 50%; animation: pulse 2s infinite; }
.hero-title { margin-bottom: 20px; }
.hero-title em { font-style: normal; background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.1rem; color: var(--muted); max-width: 480px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: 10px; font-size: .95rem; font-weight: 700; cursor: pointer; border: none; transition: all var(--transition); }
.btn-primary { background: var(--grad); color: var(--white); box-shadow: 0 4px 20px rgba(99,102,241,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,.4); }
.btn-outline { background: transparent; color: var(--dark); border: 2px solid var(--bg2); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.hero-stats { display: flex; gap: 32px; margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--bg2); flex-wrap: wrap; }
.stat-item strong { display: block; font-size: 2rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-item span { font-size: .82rem; color: var(--muted); font-weight: 500; }
.hero-visual { position: relative; }
.hero-card-stack { position: relative; }
.hero-card { background: var(--white); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-lg); }
.hero-card-top { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.hc-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--grad); display: flex; align-items: center; justify-content: center; }
.hc-icon svg { width: 20px; height: 20px; color: white; fill: none; stroke: white; stroke-width: 2; stroke-linecap: round; }
.hc-title { font-weight: 700; font-size: .9rem; }
.hc-sub { font-size: .75rem; color: var(--muted); }
.chart-bars { display: flex; align-items: flex-end; gap: 6px; height: 80px; }
.chart-bar { flex: 1; border-radius: 4px 4px 0 0; background: var(--bg2); transition: background var(--transition); position: relative; }
.chart-bar.active { background: var(--grad); }
.chart-bar::after { content: ''; position: absolute; top: -4px; left: 50%; transform: translateX(-50%); width: 6px; height: 6px; background: var(--blue); border-radius: 50%; opacity: 0; transition: opacity var(--transition); }
.chart-bar.active::after { opacity: 1; }
.float-badge { position: absolute; background: var(--white); border-radius: 12px; padding: 10px 16px; box-shadow: var(--shadow-lg); font-size: .8rem; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.float-badge.top-right { top: -16px; right: -16px; }
.float-badge.bottom-left { bottom: 24px; left: -24px; }
.fb-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; }
.fb-dot.orange { background: #f59e0b; }
.tech-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tech-pill { background: var(--bg); color: var(--mid); font-size: .72rem; font-weight: 600; padding: 4px 12px; border-radius: 100px; }

/* ===== MARQUEE ===== */
.marquee-section { padding: 24px 0; background: var(--dark); overflow: hidden; }
.marquee-track { display: flex; gap: 48px; animation: marquee 30s linear infinite; white-space: nowrap; }
.marquee-track span { color: rgba(255,255,255,.5); font-size: .85rem; font-weight: 600; letter-spacing: .5px; flex-shrink: 0; }
.marquee-track span strong { color: rgba(255,255,255,.85); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===== ABOUT ===== */
#about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-text .badge { display: inline-block; background: rgba(59,130,246,.1); color: var(--blue); font-size: .75rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: 4px 14px; border-radius: 100px; margin-bottom: 16px; }
.about-text h2 { margin-bottom: 16px; }
.about-text p { margin-bottom: 16px; font-size: 1rem; color: var(--muted); }
.about-list { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.about-list li { display: flex; align-items: flex-start; gap: 12px; font-size: .95rem; color: var(--mid); }
.about-list li::before { content: ''; width: 20px; height: 20px; flex-shrink: 0; border-radius: 50%; background: rgba(59,130,246,.12); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%233b82f6'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E"); background-size: 14px; background-repeat: no-repeat; background-position: center; margin-top: 1px; }
.about-visual { position: relative; }
.about-card { background: linear-gradient(135deg, #f8faff 0%, #eef2ff 100%); border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--bg2); }
.timeline { position: relative; padding-left: 20px; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--blue), var(--indigo)); border-radius: 2px; }
.tl-item { position: relative; padding-left: 20px; margin-bottom: 24px; }
.tl-item:last-child { margin-bottom: 0; }
.tl-item::before { content: ''; position: absolute; left: -25px; top: 4px; width: 10px; height: 10px; border-radius: 50%; background: var(--blue); border: 2px solid white; box-shadow: 0 0 0 2px var(--blue); }
.tl-year { font-size: .72rem; font-weight: 700; color: var(--blue); letter-spacing: 1px; text-transform: uppercase; }
.tl-title { font-weight: 700; font-size: .95rem; margin: 2px 0; }
.tl-desc { font-size: .82rem; color: var(--muted); }

/* ===== SERVICES ===== */
#services { background: var(--bg); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 32px;
  border: 1px solid transparent;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before { content: ''; position: absolute; inset: 0; background: var(--grad); opacity: 0; transition: opacity var(--transition); z-index: 0; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { opacity: 1; }
.service-card:hover * { color: rgba(255,255,255,.9) !important; }
.service-card:hover .svc-icon { background: rgba(255,255,255,.2) !important; }
.service-card:hover .svc-icon svg { stroke: white !important; }
.svc-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(59,130,246,.1); display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; position: relative; z-index: 1;
  transition: background var(--transition);
}
.svc-icon svg { width: 24px; height: 24px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: stroke var(--transition); }
.service-card h3 { position: relative; z-index: 1; margin-bottom: 10px; }
.service-card p { position: relative; z-index: 1; font-size: .88rem; line-height: 1.6; }
.svc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; position: relative; z-index: 1; }
.svc-tag { background: var(--bg); color: var(--muted); font-size: .7rem; font-weight: 600; padding: 3px 10px; border-radius: 100px; transition: background var(--transition), color var(--transition); }
.service-card:hover .svc-tag { background: rgba(255,255,255,.2); color: rgba(255,255,255,.8); }

/* ===== TECH STACK ===== */
#tech { background: var(--white); }
.tech-groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tech-group { background: var(--bg); border-radius: var(--radius); padding: 24px; }
.tech-group-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--blue); margin-bottom: 16px; }
.tech-items { display: flex; flex-direction: column; gap: 10px; }
.tech-item { display: flex; align-items: center; gap: 10px; font-size: .88rem; font-weight: 600; color: var(--mid); }
.tech-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); flex-shrink: 0; }

/* ===== PORTFOLIO ===== */
#portfolio { background: var(--bg); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.portfolio-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--bg2); transition: all var(--transition);
}
.portfolio-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.pc-header { padding: 24px 24px 16px; }
.pc-icon-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.pc-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--grad); display: flex; align-items: center; justify-content: center; }
.pc-icon svg { width: 22px; height: 22px; stroke: white; fill: none; stroke-width: 2; stroke-linecap: round; }
.pc-year { font-size: .75rem; font-weight: 700; color: var(--light); }
.pc-title { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.pc-desc { font-size: .82rem; color: var(--muted); line-height: 1.55; }
.pc-footer { padding: 14px 24px 20px; border-top: 1px solid var(--bg); display: flex; flex-wrap: wrap; gap: 6px; }
.pc-tag { background: var(--bg); color: var(--muted); font-size: .7rem; font-weight: 600; padding: 3px 10px; border-radius: 100px; }

/* ===== TEAM ===== */
#team { background: var(--white); }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card { background: var(--bg); border-radius: var(--radius-lg); padding: 28px 24px; text-align: center; transition: all var(--transition); }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: var(--white); }
.team-avatar { width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 16px; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; color: white; }
.team-card h3 { font-size: 1rem; margin-bottom: 4px; }
.team-role { font-size: .8rem; color: var(--blue); font-weight: 700; margin-bottom: 8px; }
.team-location { font-size: .78rem; color: var(--light); display: flex; align-items: center; justify-content: center; gap: 4px; }

/* ===== AI PRODUCT ===== */
#product { background: var(--dark); position: relative; overflow: hidden; }
#product::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 70% 70% at 80% 50%, rgba(99,102,241,.2) 0%, transparent 60%); }
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; z-index: 1; }
.product-text .badge { background: rgba(99,102,241,.2); color: #a5b4fc; border-color: rgba(99,102,241,.3); }
.product-text h2 { color: white; }
.product-text p { color: rgba(255,255,255,.6); margin-top: 12px; font-size: 1rem; }
.product-features { list-style: none; margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
.product-features li { display: flex; align-items: flex-start; gap: 12px; color: rgba(255,255,255,.75); font-size: .9rem; }
.product-features li .pf-icon { width: 22px; height: 22px; flex-shrink: 0; border-radius: 6px; background: rgba(99,102,241,.3); display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.product-features li .pf-icon svg { width: 12px; height: 12px; stroke: #a5b4fc; fill: none; stroke-width: 2.5; stroke-linecap: round; }
.product-cta-row { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.btn-white { background: white; color: var(--dark); }
.btn-white:hover { background: var(--bg); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.btn-ghost { background: rgba(255,255,255,.1); color: white; border: 1px solid rgba(255,255,255,.15); }
.btn-ghost:hover { background: rgba(255,255,255,.18); }
.product-ui { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-lg); padding: 24px; backdrop-filter: blur(10px); }
.pui-header { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.pui-dot { width: 10px; height: 10px; border-radius: 50%; }
.pui-chat { display: flex; flex-direction: column; gap: 12px; }
.pui-msg { padding: 12px 16px; border-radius: 12px; font-size: .82rem; line-height: 1.55; max-width: 85%; }
.pui-msg.user { background: var(--grad); color: white; align-self: flex-end; border-bottom-right-radius: 4px; }
.pui-msg.ai { background: rgba(255,255,255,.08); color: rgba(255,255,255,.8); align-self: flex-start; border-bottom-left-radius: 4px; }
.pui-typing { display: flex; gap: 4px; padding: 10px 16px; }
.pui-typing span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.3); animation: typing 1.2s infinite; }
.pui-typing span:nth-child(2) { animation-delay: .2s; }
.pui-typing span:nth-child(3) { animation-delay: .4s; }

/* ===== CONTACT ===== */
#contact { background: var(--bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: start; }
.contact-info h2 { margin-bottom: 12px; }
.contact-info p { color: var(--muted); margin-bottom: 32px; }
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.ci-item { display: flex; align-items: flex-start; gap: 16px; }
.ci-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--white); display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: var(--shadow-sm); }
.ci-icon svg { width: 20px; height: 20px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; }
.ci-label { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--light); }
.ci-value { font-size: .95rem; font-weight: 600; color: var(--dark); }
.contact-form { background: var(--white); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .82rem; font-weight: 700; color: var(--mid); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1.5px solid var(--bg2); border-radius: 8px;
  font-size: .9rem; color: var(--dark); background: var(--bg); transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit; outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,.12); background: white;
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-submit { width: 100%; padding: 14px; background: var(--grad); color: white; border: none; border-radius: 10px; font-size: 1rem; font-weight: 700; cursor: pointer; transition: all var(--transition); font-family: inherit; }
.form-submit:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99,102,241,.35); }

/* ===== FOOTER ===== */
footer { background: var(--dark); color: rgba(255,255,255,.6); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand img { height: 40px; filter: brightness(0) invert(1); margin-bottom: 16px; }
.footer-brand p { font-size: .85rem; max-width: 280px; }
.footer-col h4 { font-size: .82rem; font-weight: 700; color: white; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: .85rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: gap; gap: 12px; }
.footer-bottom p { font-size: .82rem; }
.footer-bottom p strong { color: rgba(255,255,255,.8); }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a { width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; transition: background var(--transition); }
.footer-socials a:hover { background: var(--blue); }
.footer-socials svg { width: 16px; height: 16px; stroke: rgba(255,255,255,.6); fill: none; stroke-width: 2; stroke-linecap: round; }
.footer-socials a:hover svg { stroke: white; }

/* ===== ANIMATIONS ===== */
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(1.3); } }
@keyframes typing { 0%,60%,100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-groups { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero-grid, .about-grid, .product-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .nav-links { display: none; position: fixed; top: 68px; left: 0; right: 0; background: white; flex-direction: column; padding: 24px; box-shadow: var(--shadow-lg); gap: 16px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; flex-direction: column; }
  .services-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .tech-groups { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .tech-groups { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
}