:root {
  --bg-color: #0A0A0A;
  --bg-card: #111111;
  --bg-card-hover: #1A1A1A;
  --text-main: #F9FAFB;
  --text-muted: #9CA3AF;
  
  /* Акцентные цвета направлений */
  --color-ai: #00FF88;
  --color-ops: #3B82F6;
  --color-kzcn: #EF4444;
  --color-fin: #F59E0B;
  --color-marketing: #8B5CF6;
  --color-research: #06B6D4;
  --color-it: #EC4899;
}

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

body {
  font-family: 'Inter', 'Open Sans', 'Noto Sans SC', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
}

/* Typography */
h1, h2, h3 { font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
p { color: var(--text-muted); margin-bottom: 1rem; }

/* Layout & Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
section { padding: 5rem 0; }

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid #333;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}
.logo { font-size: 1.5rem; font-weight: bold; color: var(--text-main); text-decoration: none; }
.nav-links { display: flex; gap: 1.5rem; list-style: none; }
.nav-links a { color: var(--text-muted); text-decoration: none; transition: color 0.3s; }
.nav-links a:hover { color: var(--text-main); }

/* Controls (Lang + Burger) */
.controls { display: flex; align-items: center; gap: 1rem; }
.lang-switch {
  background: transparent; border: 1px solid #333; color: #fff;
  padding: 0.3rem 0.6rem; cursor: pointer; border-radius: 4px;
}
.burger { display: none; cursor: pointer; font-size: 1.5rem; }

/* Buttons */
.btn {
  display: inline-block; padding: 0.8rem 1.5rem;
  border-radius: 4px; text-decoration: none; font-weight: 600;
  transition: all 0.3s ease; border: none; cursor: pointer;
}
.btn-primary { background: var(--color-ai); color: #000; }
.btn-primary:hover { opacity: 0.8; }
.btn-outline { border: 1px solid var(--text-muted); color: var(--text-main); }
.btn-outline:hover { border-color: var(--text-main); }

/* Hero Section */
.hero { text-align: center; padding: 8rem 0 4rem; }
.hero h1 { max-width: 800px; margin: 0 auto 1.5rem; }
.hero p { max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }
.hero-btns { display: flex; justify-content: center; gap: 1rem; }

/* Grid Cards (Directions) */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid #222;
  transition: transform 0.3s, background 0.3s;
}
.card:hover { transform: translateY(-5px); background: var(--bg-card-hover); }
.card h3 { margin: 1rem 0; }
.card-link { color: inherit; text-decoration: none; font-weight: bold; display: inline-block; margin-top: 1rem;}

/* Direction Accents */
.accent-ai .card-link, .accent-ai i { color: var(--color-ai); }
.accent-ops .card-link, .accent-ops i { color: var(--color-ops); }
.accent-kzcn .card-link, .accent-kzcn i { color: var(--color-kzcn); }
.accent-fin .card-link, .accent-fin i { color: var(--color-fin); }
.accent-marketing .card-link, .accent-marketing i { color: var(--color-marketing); }
.accent-research .card-link, .accent-research i { color: var(--color-research); }
.accent-it .card-link, .accent-it i { color: var(--color-it); }

/* Tables */
table { width: 100%; border-collapse: collapse; margin-top: 2rem; }
th, td { padding: 1rem; border-bottom: 1px solid #333; text-align: left; }
th { color: var(--text-main); font-weight: 600; }

/* Footer */
footer { background: #050505; padding: 3rem 0; border-top: 1px solid #222; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--text-main); }

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none; position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg-color); flex-direction: column; padding: 1rem;
    border-bottom: 1px solid #333;
  }
  .nav-links.active { display: flex; }
  .burger { display: block; }
  h1 { font-size: 2rem; }
  .hero-btns { flex-direction: column; }
}