/* ===== Tiger Robotics — Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --orange: #ff6b35;
  --gold: #f7c948;
  --bg: #0a0a0f;
  --bg2: #12121a;
  --bg3: #1a1a26;
  --text: #e8e8ed;
  --text-dim: #8888a0;
  --glass: rgba(255,255,255,.04);
  --glass-border: rgba(255,255,255,.08);
  --radius: 16px;
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4,h5 { font-family: 'Outfit', sans-serif; line-height: 1.1; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; }

/* ===== Utility ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-label {
  font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .2em;
  color: var(--orange); margin-bottom: 12px; display:block;
}
.section-title {
  font-size: clamp(2rem,5vw,3.25rem); font-weight: 800; margin-bottom: 20px;
}
.section-title .accent { color: var(--orange); }
.section-desc { color: var(--text-dim); font-size: 1.05rem; max-width: 560px; line-height: 1.7; }

/* ===== Scroll Animations ===== */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ===== Navigation ===== */
.nav {
  position: fixed; top:0; left:0; width:100%; z-index:1000;
  padding: 20px 0; transition: var(--transition);
}
.nav.scrolled {
  background: rgba(10,10,15,.85); backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--glass-border); padding: 14px 0;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 1.35rem;
  display:flex; align-items:center; gap:10px;
}
.nav-logo .dot { width:10px; height:10px; border-radius:50%; background:var(--orange); box-shadow: 0 0 12px var(--orange); }
.nav-links { display:flex; gap:32px; list-style:none; }
.nav-links a {
  font-size: .875rem; font-weight: 500; color: var(--text-dim);
  transition: color var(--transition); position:relative;
}
.nav-links a::after {
  content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px;
  background: var(--orange); transition: width var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width:100%; }

.nav-cta {
  padding: 10px 24px; border-radius: 100px; font-size: .85rem; font-weight: 600;
  background: var(--orange); color: #fff; transition: var(--transition);
}
.nav-cta:hover { background: #e55a28; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,107,53,.3); }

.menu-toggle { display:none; background:none; color:var(--text); font-size:1.5rem; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display:flex; align-items:center; position:relative; overflow:hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position:absolute; inset:0; z-index:0;
}
.hero-bg::before {
  content:''; position:absolute; inset:0;
  background: radial-gradient(ellipse 80% 60% at 70% 50%, rgba(255,107,53,.12) 0%, transparent 60%),
              radial-gradient(ellipse 50% 50% at 30% 60%, rgba(247,201,72,.06) 0%, transparent 50%);
}
#hero-canvas { position:absolute; inset:0; width:100%; height:100%; }
.hero-inner {
  position:relative; z-index:2; display:grid; grid-template-columns: 1fr 1fr;
  gap:60px; align-items:center;
}
.hero-tag {
  display:inline-flex; align-items:center; gap:8px; padding:6px 16px 6px 8px;
  border-radius:100px; background:var(--glass); border:1px solid var(--glass-border);
  font-size:.8rem; color:var(--text-dim); margin-bottom:28px;
}
.hero-tag .pulse {
  width:8px; height:8px; border-radius:50%; background:#22c55e;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}
.hero h1 {
  font-size: clamp(2.5rem,6vw,4.5rem); font-weight: 900; line-height:1.05; margin-bottom:24px;
}
.hero h1 .gradient {
  background: linear-gradient(135deg, var(--orange), var(--gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size:1.1rem; color:var(--text-dim); line-height:1.8; margin-bottom:40px; max-width:480px;
}
.hero-btns { display:flex; gap:16px; flex-wrap:wrap; }
.btn-primary {
  padding:14px 36px; border-radius:100px; font-size:.95rem; font-weight:600;
  background: linear-gradient(135deg, var(--orange), #e55a28); color:#fff;
  transition: var(--transition); position:relative; overflow:hidden;
}
.btn-primary::before {
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,.15) 50%, transparent 60%);
  transform: translateX(-100%); transition: transform .6s;
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 12px 32px rgba(255,107,53,.35); }

.btn-secondary {
  padding:14px 36px; border-radius:100px; font-size:.95rem; font-weight:600;
  background:transparent; color:var(--text); border:1px solid var(--glass-border);
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--orange); color:var(--orange); transform:translateY(-2px); }

.hero-image {
  position:relative; display:flex; justify-content:center; align-items:center;
}
.hero-image img {
  width:100%; max-width:520px; border-radius:24px;
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform:translateY(0); }
  50% { transform:translateY(-16px); }
}
.hero-image::after {
  content:''; position:absolute; bottom:-40px; left:50%; transform:translateX(-50%);
  width:70%; height:60px; background:var(--orange); filter:blur(60px); opacity:.2;
}

.hero-stats {
  display:flex; gap:40px; margin-top:48px; padding-top:32px;
  border-top:1px solid var(--glass-border);
}
.hero-stat h3 {
  font-size:1.75rem; font-weight:800;
  background:linear-gradient(135deg,var(--orange),var(--gold));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
}
.hero-stat p { font-size:.8rem; color:var(--text-dim); margin-top:4px; }

/* ===== Products ===== */
.products { padding:120px 0; position:relative; }
.products::before {
  content:''; position:absolute; top:0; left:50%; transform:translateX(-50%);
  width:200px; height:1px;
  background:linear-gradient(90deg,transparent,var(--orange),transparent);
}
.products-header { text-align:center; margin-bottom:64px; }
.products-header .section-desc { margin:0 auto; }
.products-grid {
  display:grid; grid-template-columns: repeat(2,1fr); gap:24px;
}
.product-card {
  background: var(--glass); border:1px solid var(--glass-border); border-radius:var(--radius);
  padding:0; overflow:hidden; transition: var(--transition); position:relative;
}
.product-card:hover {
  border-color: rgba(255,107,53,.3); transform:translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 40px rgba(255,107,53,.06);
}
.product-card-img {
  width:100%; height:240px; object-fit:cover; transition: transform .5s;
}
.product-card:hover .product-card-img { transform:scale(1.03); }
.product-card-body { padding:28px; }
.product-badge {
  display:inline-block; padding:4px 12px; border-radius:100px;
  font-size:.7rem; font-weight:600; text-transform:uppercase; letter-spacing:.1em;
  margin-bottom:12px;
}
.badge-platform { background:rgba(255,107,53,.15); color:var(--orange); }
.badge-arm { background:rgba(247,201,72,.15); color:var(--gold); }
.badge-edu { background:rgba(34,197,94,.15); color:#22c55e; }
.badge-software { background:rgba(99,102,241,.15); color:#818cf8; }
.product-card h3 { font-size:1.35rem; margin-bottom:8px; }
.product-card p { color:var(--text-dim); font-size:.9rem; line-height:1.6; }
.product-specs {
  display:flex; gap:16px; margin-top:16px; padding-top:16px;
  border-top:1px solid var(--glass-border);
}
.product-specs span {
  font-size:.75rem; color:var(--text-dim); display:flex; align-items:center; gap:4px;
}
.product-specs span::before {
  content:''; width:4px; height:4px; border-radius:50%; background:var(--orange);
}

/* ===== About ===== */
.about { padding:120px 0; position:relative; }
.about-inner {
  display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:center;
}
.about-visual {
  position:relative; padding:40px; display:flex; justify-content:center;
}
.about-orbit {
  width:320px; height:320px; border-radius:50%; position:relative;
  border:1px solid var(--glass-border);
}
.about-orbit::before {
  content:''; position:absolute; inset:-40px; border-radius:50%;
  border:1px dashed rgba(255,107,53,.15); animation:spin 30s linear infinite;
}
.about-orbit::after {
  content:''; position:absolute; inset:-80px; border-radius:50%;
  border:1px dashed rgba(247,201,72,.1); animation:spin 50s linear infinite reverse;
}
@keyframes spin { to { transform:rotate(360deg); } }
.orbit-center {
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:100px; height:100px; border-radius:50%;
  background:linear-gradient(135deg,var(--orange),var(--gold));
  display:flex; align-items:center; justify-content:center;
  font-size:2.5rem; box-shadow:0 0 60px rgba(255,107,53,.3);
}
.orbit-dot {
  position:absolute; width:12px; height:12px; border-radius:50%;
  background:var(--orange); box-shadow:0 0 12px var(--orange);
}
.orbit-dot:nth-child(2) { top:0; left:50%; transform:translateX(-50%); }
.orbit-dot:nth-child(3) { bottom:0; left:50%; transform:translateX(-50%); background:var(--gold); box-shadow:0 0 12px var(--gold); }
.orbit-dot:nth-child(4) { top:50%; left:0; transform:translateY(-50%); }
.orbit-dot:nth-child(5) { top:50%; right:0; transform:translateY(-50%); background:var(--gold); box-shadow:0 0 12px var(--gold); }

.about-content .section-desc { margin-bottom:32px; }
.about-features { display:flex; flex-direction:column; gap:16px; }
.about-feature {
  display:flex; align-items:flex-start; gap:16px; padding:16px;
  background:var(--glass); border:1px solid var(--glass-border);
  border-radius:12px; transition:var(--transition);
}
.about-feature:hover { border-color:rgba(255,107,53,.2); }
.about-feature-icon {
  width:44px; height:44px; border-radius:10px; flex-shrink:0;
  background:rgba(255,107,53,.1); display:flex; align-items:center; justify-content:center;
  font-size:1.2rem;
}
.about-feature h4 { font-size:.95rem; margin-bottom:4px; }
.about-feature p { font-size:.82rem; color:var(--text-dim); line-height:1.5; }

/* ===== Team ===== */
.team { padding:120px 0; background:var(--bg2); }
.team-header { text-align:center; margin-bottom:64px; }
.team-header .section-desc { margin:0 auto; }
.team-grid {
  display:grid; grid-template-columns:repeat(5,1fr); gap:20px;
}
.team-card {
  text-align:center; padding:32px 16px; background:var(--glass);
  border:1px solid var(--glass-border); border-radius:var(--radius);
  transition:var(--transition);
}
.team-card:hover { border-color:rgba(255,107,53,.25); transform:translateY(-4px); }
.team-avatar {
  width:80px; height:80px; border-radius:50%; margin:0 auto 16px;
  background:linear-gradient(135deg,var(--bg3),var(--bg));
  border:2px solid var(--glass-border); display:flex; align-items:center;
  justify-content:center; font-size:1.8rem; overflow:hidden;
}
.team-card h4 { font-size:.95rem; margin-bottom:4px; }
.team-card .role {
  font-size:.75rem; color:var(--orange); font-weight:600; text-transform:uppercase;
  letter-spacing:.08em;
}
.team-card .bio { font-size:.8rem; color:var(--text-dim); margin-top:8px; line-height:1.5; }

/* ===== Contact ===== */
.contact { padding:120px 0; position:relative; }
.contact::before {
  content:''; position:absolute; bottom:0; left:50%; transform:translateX(-50%);
  width:80%; height:400px;
  background:radial-gradient(ellipse at center bottom,rgba(255,107,53,.08),transparent 70%);
  pointer-events:none;
}
.contact-inner { text-align:center; max-width:640px; margin:0 auto; }
.contact-inner .section-desc { margin:0 auto 48px; }
.contact-links {
  display:flex; justify-content:center; gap:20px; flex-wrap:wrap; margin-bottom:48px;
}
.contact-link {
  display:flex; align-items:center; gap:10px; padding:14px 28px;
  background:var(--glass); border:1px solid var(--glass-border);
  border-radius:12px; font-size:.9rem; font-weight:500;
  transition:var(--transition);
}
.contact-link:hover { border-color:var(--orange); transform:translateY(-2px); }
.contact-link .icon { font-size:1.2rem; }
.contact-cta {
  padding:18px 48px; border-radius:100px; font-size:1.05rem; font-weight:700;
  background:linear-gradient(135deg,var(--orange),var(--gold)); color:#0a0a0f;
  transition:var(--transition); display:inline-block;
}
.contact-cta:hover { transform:translateY(-2px); box-shadow:0 16px 40px rgba(255,107,53,.3); }

/* ===== Footer ===== */
.footer {
  padding:32px 0; border-top:1px solid var(--glass-border); text-align:center;
}
.footer p { font-size:.85rem; color:var(--text-dim); }
.footer .flag { font-size:1.1rem; }

/* ===== Mobile ===== */
@media(max-width:1024px) {
  .team-grid { grid-template-columns:repeat(3,1fr); }
}
@media(max-width:768px) {
  .nav-links { display:none; }
  .menu-toggle { display:block; }
  .nav-links.open {
    display:flex; flex-direction:column; position:absolute; top:100%; left:0;
    width:100%; background:rgba(10,10,15,.95); backdrop-filter:blur(20px);
    padding:24px; gap:20px; border-bottom:1px solid var(--glass-border);
  }
  .hero-inner { grid-template-columns:1fr; text-align:center; }
  .hero-desc { margin:0 auto 40px; }
  .hero-btns { justify-content:center; }
  .hero-stats { justify-content:center; }
  .hero-image { order:-1; }
  .hero-image img { max-width:340px; }
  .products-grid { grid-template-columns:1fr; }
  .about-inner { grid-template-columns:1fr; }
  .about-visual { order:-1; }
  .team-grid { grid-template-columns:repeat(2,1fr); }
  .contact-links { flex-direction:column; align-items:center; }
}
@media(max-width:480px) {
  .team-grid { grid-template-columns:1fr; }
  .hero-stats { flex-direction:column; gap:20px; align-items:center; }
}