:root {
  --bg-color: #000000;
  --fg-color: #ffffff;
  --gray-dark: #111111;
  --gray-border: #333333;
  --gray-text: #888888;
  --nav-bg: rgba(0, 0, 0, 0.8);
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: all 0.3s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-family: var(--font-main); background-color: var(--bg-color); color: var(--fg-color); line-height: 1.6; }
body { overflow-x: hidden; display: flex; flex-direction: column; min-height: 100vh; }
::selection { background: var(--fg-color); color: var(--bg-color); }
a { color: var(--fg-color); text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
.bg-grid { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-image: linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 50px 50px; z-index: -2; pointer-events: none; }
.bg-glow { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60vw; height: 60vw; background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%); z-index: -1; pointer-events: none; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
h1 { font-size: clamp(3rem, 8vw, 7rem); text-transform: uppercase; }
h2 { font-size: clamp(2rem, 5vw, 4rem); margin-bottom: 1.5rem; }
h3 { font-size: clamp(1.2rem, 3vw, 2rem); margin-bottom: 1rem; }
p { color: var(--gray-text); font-size: 1.1rem; margin-bottom: 1.5rem; }
.navbar { position: fixed; top: 0; width: 100%; padding: 1.5rem 5%; display: flex; justify-content: space-between; align-items: center; z-index: 100; background: var(--nav-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-border); }
.nav-brand { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.05em; display: flex; align-items: center; gap: 10px; }
.nav-brand img { height: 24px; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: 0.9rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.7; }
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.hamburger { display: none; cursor: pointer; background: none; border: none; color: var(--fg-color); }
.hamburger svg { width: 24px; height: 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 1rem 2rem; font-size: 0.9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; border: 1px solid var(--fg-color); background: transparent; color: var(--fg-color); cursor: pointer; transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1); }
.btn-primary { background: var(--fg-color); color: var(--bg-color); }
.btn-primary:hover { background: transparent; color: var(--fg-color); }
.btn-outline:hover { background: var(--fg-color); color: var(--bg-color); }
main { flex: 1; }
section { padding: 8rem 5%; max-width: 1440px; margin: 0 auto; }
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; position: relative; padding-top: 120px; }
.hero p { font-size: clamp(1.2rem, 2vw, 1.8rem); max-width: 600px; }
.hero-actions { display: flex; gap: 1rem; margin-top: 2rem; }
.grid { display: grid; gap: 2rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }
.card { background: var(--gray-dark); border: 1px solid var(--gray-border); padding: 3rem 2rem; transition: transform 0.4s ease, border-color 0.4s ease; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-10px); border-color: var(--fg-color); }
.card-icon { font-size: 2.5rem; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.5rem; }
input, textarea { width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--gray-border); color: var(--fg-color); padding: 1rem 0; font-family: inherit; font-size: 1rem; transition: border-color 0.3s ease; }
input:focus, textarea:focus { outline: none; border-bottom-color: var(--fg-color); }
footer { border-top: 1px solid var(--gray-border); padding: 4rem 5%; background: var(--bg-color); }
.footer-content { max-width: 1440px; margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
.footer-col h4 { font-size: 1.2rem; margin-bottom: 1rem; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col a { color: var(--gray-text); }
.footer-col a:hover { color: var(--fg-color); }
.footer-bottom { max-width: 1440px; margin: 4rem auto 0; padding-top: 2rem; border-top: 1px solid var(--gray-border); display: flex; justify-content: space-between; color: var(--gray-text); font-size: 0.9rem; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .reveal { transition: none; opacity: 1; transform: none; } .card:hover { transform: none; } }
@media (max-width: 768px) { .hamburger { display: block; } .nav-links { position: fixed; top: 70px; left: -100%; width: 100%; height: calc(100vh - 70px); background: var(--bg-color); flex-direction: column; align-items: center; justify-content: center; gap: 3rem; transition: left 0.4s ease; } .nav-links.active { left: 0; } .nav-links a { font-size: 1.5rem; } .footer-content { flex-direction: column; } .footer-bottom { flex-direction: column; text-align: center; gap: 1rem; } }