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

:root {
  --white: #ffffff;
  --gray-50: #f8f8f6;
  --gray-100: #f0f0ed;
  --gray-200: #e2e2de;
  --gray-300: #c8c8c2;
  --gray-400: #9a9a93;
  --gray-600: #5a5a55;
  --gray-800: #2c2c28;
  --anthracite: #1a1a18;
  --blue: #1b4f8a;
  --blue-light: #e8f0fa;
  --blue-mid: #3a6db5;
  --accent: #2d6a4f;
  --accent-light: #e8f4ee;
  --accent-mid: #52b788;
  /* Terminal colors */
  --terminal-bg: #0d1117;
  --terminal-border: #21262d;
  --terminal-green: #3fb950;
  --terminal-blue: #58a6ff;
  --terminal-yellow: #e3b341;
  --terminal-gray: #8b949e;
  --terminal-white: #c9d1d9;
  /* Fonts */
  --font-display: 'Manrope', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --nav-h: 68px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* ─── NAVIGATION ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--anthracite);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo span { color: var(--blue-mid); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--gray-600);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--anthracite); }

.nav-badge {
  background: var(--accent-mid);
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 5px;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  top: -1px;
}

.nav-cta {
  background: var(--anthracite);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-weight: 500 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: var(--gray-800) !important; color: var(--white) !important; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--anthracite);
  transition: all 0.3s;
}

/* ─── LAYOUT ─── */
section { padding: 6rem 5vw; }

.container { max-width: 1060px; margin: 0 auto; }
.container-narrow { max-width: 720px; margin: 0 auto; }

.label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: 1.25rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--anthracite);
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--gray-600);
  font-weight: 300;
  line-height: 1.75;
  margin-bottom: 3rem;
}

/* ─── BOUTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--anthracite);
  color: var(--white);
  padding: 0.8rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.925rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  border: 1.5px solid var(--anthracite);
}

.btn-primary:hover {
  background: var(--gray-800);
  border-color: var(--gray-800);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--anthracite);
  padding: 0.8rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.925rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  border: 1.5px solid var(--gray-300);
}

.btn-secondary:hover {
  border-color: var(--anthracite);
  background: var(--gray-50);
}

/* ─── FOOTER ─── */
footer {
  background: var(--anthracite);
  color: rgba(255,255,255,0.5);
  padding: 2.5rem 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

footer .nav-logo { color: var(--white); }
footer p { font-size: 0.8rem; }

footer a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 0.8rem;
}

footer a:hover { color: var(--white); }
.footer-links { display: flex; gap: 1.5rem; }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 860px) {
  nav { padding: 0 1.25rem; }
  section { padding: 4rem 1.25rem; }

  .nav-links { display: none; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--white); padding: 1.5rem; border-bottom: 1px solid var(--gray-200); gap: 1rem; z-index: 99; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
}