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

:root {
  --bg:      #0d0f14;
  --bg2:     #13161e;
  --bg3:     #1a1e2a;
  --border:  #252836;
  --accent:  #5b7cfa;
  --accent2: #7c5bfa;
  --text:    #e8eaf0;
  --text2:   #8b90a4;
  --green:   #3ecf8e;
  --red:     #f87171;
  --radius:  12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── HEADER ── */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13,15,20,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center;
  justify-content: space-between; height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.1rem; letter-spacing: -0.3px;
}
.logo-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
nav { display: flex; align-items: center; gap: 8px; }
nav a {
  padding: 8px 14px; border-radius: 8px;
  font-size: 0.9rem; color: var(--text2);
  transition: color .2s, background .2s;
}
nav a:hover { color: var(--text); background: var(--bg3); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center;
  justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius);
  font-size: 0.9rem; font-weight: 600;
  cursor: pointer; border: none;
  transition: opacity .2s, transform .15s;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; }
.btn-outline {
  background: transparent; border: 1px solid var(--border); color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(91,124,250,.07); }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 14px; }
.btn-full { width: 100%; justify-content: center; }

/* ── SECTION HEADERS ── */
.section { padding: 80px 0; }
.section-label {
  font-size: .8rem; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem,3vw,2.2rem);
  font-weight: 800; letter-spacing: -.5px; margin-bottom: 16px;
}
.section-sub { color: var(--text2); font-size: 1rem; max-width: 500px; }

/* ── FOOTER ── */
footer { border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: .85rem; color: var(--text2); transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: .82rem; color: var(--text2); }

/* ── HAMBURGER ── */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg2); border-bottom: 1px solid var(--border);
    padding: 12px; gap: 4px; z-index: 99;
  }
  .nav-links.open a { padding: 12px 16px; border-radius: 8px; }
  .hamburger { display: block; }
  header { position: relative; }
}