/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-black:    #0d0d0d;
  --c-white:    #ffffff;
  --c-gray-50:  #f5f5f3;
  --c-gray-100: #e8e8e5;
  --c-gray-300: #b0b0a8;
  --c-gray-500: #6e6e68;
  --c-gray-700: #3a3a36;
  --c-red:      #c0392b;
  --c-red-dark: #96291e;

  --font: 'Inter', system-ui, sans-serif;
  --nav-h: 68px;
  --radius: 6px;
  --radius-lg: 12px;
  --transition: 0.22s ease;

  scroll-behavior: smooth;
}

html { font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--c-white);
  color: var(--c-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

/* ── Typography ───────────────────────────────────────────── */
h1 { font-size: clamp(2.4rem, 5vw, 4rem);   font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; letter-spacing: -0.015em; line-height: 1.15; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { font-size: 1rem; color: var(--c-gray-500); }

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 5%;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-gray-100);
  transition: background var(--transition);
  /* transition: background 0.22s ease, border-color 0.22s ease; */
}

.nav.dark {
  background: rgba(13, 13, 13, 0.85);
  border-bottom-color: rgba(255,255,255,0.08);
}

.nav .nav-svg-logo * {
  transition: fill 0.22s ease;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--c-black);
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo .logo-light {
  top: 0; left: 0;
  transition: opacity 0.22s ease;
}

.nav.dark .nav-logo { color: var(--c-white); }

.nav-logo span { color: var(--c-red); }

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-gray-700);
  position: relative;
  transition: color var(--transition);
}

.nav.dark .nav-links a { color: var(--c-gray-300); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--c-red);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--c-black); }
.nav.dark .nav-links a:hover,
.nav.dark .nav-links a.active { color: var(--c-white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav:not(.dark) {
  --logo-fg: var(--c-black);
  --logo-shield: transparent;
}
.nav.dark {
  --logo-fg: #ffffff;
  --logo-shield: var(--c-black);
}

.nav-cta {
  background: var(--c-red);
  color: var(--c-white) !important;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--c-red-dark) !important; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--c-black);
  border-radius: 2px;
  transition: var(--transition);
}
.nav.dark .nav-toggle span { background: var(--c-white); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), color var(--transition);
  border: none;
}

.btn-primary {
  background: var(--c-red);
  color: var(--c-white);
}
.btn-primary:hover { background: var(--c-red-dark); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 1.5px solid rgba(255,255,255,0.5);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

.btn-outline-dark {
  background: transparent;
  color: var(--c-black);
  border: 1.5px solid var(--c-gray-300);
}
.btn-outline-dark:hover { border-color: var(--c-black); transform: translateY(-2px); }

/* ── Section helpers ──────────────────────────────────────── */
.section { padding: 5rem 5%; }
.section-sm { padding: 3rem 5%; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-red);
  margin-bottom: 1rem;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px; height: 2px;
  background: var(--c-red);
}

.divider {
  border: none;
  border-top: 1px solid var(--c-gray-100);
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--c-white);
  border: 1px solid var(--c-gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

/* ── Stat strip ───────────────────────────────────────────── */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2px;
  background: var(--c-gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stat-strip-item {
  background: var(--c-white);
  padding: 2rem 1.5rem;
  text-align: center;
}

.stat-strip-item .stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-black);
  letter-spacing: -0.03em;
}

.stat-strip-item .stat-desc {
  font-size: 0.8rem;
  color: var(--c-gray-500);
  margin-top: 0.25rem;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--c-black);
  color: var(--c-gray-300);
  padding: 4rem 5% 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  color: var(--c-gray-500);
  font-size: 0.875rem;
  margin-top: 0.75rem;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-white);
  margin-bottom: 1rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-col ul a {
  font-size: 0.875rem;
  color: var(--c-gray-500);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--c-white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--c-gray-700);
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--c-white);
}
.footer-logo span { color: var(--c-red); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--c-white);
    padding: 1.5rem 5%;
    gap: 1.2rem;
    border-bottom: 1px solid var(--c-gray-100);
    align-items: flex-start;
  }
  .nav-links.open { display: flex; }
  .nav.dark .nav-links { background: var(--c-black); border-bottom-color: rgba(255,255,255,0.08); }
  .nav-toggle { display: flex; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}