:root {
  --accent: #26F4B2;
  --accent-light: #6EF7CB;
}

/* Logo */
.logo-img { height: 40px; width: auto; margin-right: 8px; }
.logo-txt { font-size: 1.25rem; font-weight: 700; color: #1f2937; }

/* Mobile menu */
.mobile-menu { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.mobile-menu.open { max-height: 500px; }

/* Smooth scroll */
html { scroll-behavior: smooth; }

/* Nav link hover */
.nav-link { color: #4b5563; }
.nav-link:hover { color: var(--accent); }