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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

/* Scroll reveal base — content is visible by default, JS adds animation */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal.hidden {
    opacity: 0;
    transform: translateY(40px);
  }
}

/* Navbar */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
  background: rgba(250, 248, 244, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(45, 89, 64, 0.08);
  padding-top: 0;
  padding-bottom: 0;
}

.nav-logo {
  transition: color 0.3s ease;
}

#navbar.scrolled .nav-logo {
  color: #0a130e;
}

/* Mobile menu */
#mobile-menu.open {
  transform: translateX(0);
}

#mobile-menu:not(.open) {
  transform: translateX(100%);
}

.mobile-link {
  transition: color 0.2s ease;
}

.mobile-link:hover {
  color: #427454;
}

/* Menu items */
.menu-item {
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(45, 89, 64, 0.12);
}

.menu-item:last-child {
  border-bottom: none;
}

/* Subtle hover on cards */
.menu-item:hover span:first-child {
  transform: scale(1.3);
  transition: transform 0.2s ease;
}

/* Button focus */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #427454;
  outline-offset: 3px;
  border-radius: 4px;
}

/* Selection */
::selection {
  background: #2d5940;
  color: #faf8f4;
}

/* Smooth image loading */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

/* Mobile menu button animation */
.menu-line {
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
}

#menu-close .menu-line {
  display: none;
}

/* Hamburger active state handled in JS */
</style>

<sm-file path="script.js">
(function () {
  'use strict';

  // Navbar scroll behavior
  const navbar = document.getElementById('navbar');
  let lastScroll = 0;

  function updateNavbar() {
    const scrollY = window.scrollY;
    if (scrollY > 60) {
      navbar.classList.add('scrolled');
    } else {
      navbar.classList.remove('scrolled');
    }
    lastScroll = scrollY;
  }

  window.addEventListener('scroll', updateNavbar, { passive: true });
  updateNavbar();

  // Mobile menu
  const menuToggle = document.getElementById('menu-toggle');
  const menuClose = document.getElementById('menu-close');
  const mobileMenu = document.getElementById('mobile-menu');
  const mobileLinks = mobileMenu.querySelectorAll('a');
  let menuOpen = false;

  function openMenu() {
    menuOpen = true;
    mobileMenu.classList.add('open');
    mobileMenu.classList.remove('not-open');
    document.body.style.overflow = 'hidden';
  }

  function closeMenu() {
    menuOpen = false;
    mobileMenu.classList.remove('open');
    mobileMenu.classList.add('not-open');
    document.body.style.overflow = '';
  }

  menuToggle.addEventListener('click', openMenu);
  menuClose.addEventListener('click', closeMenu);
  mobileLinks.forEach(function (link) {
    link.addEventListener('click', closeMenu);
  });

  // Close on Escape
  document.addEventListener('keydown', function (e) {
    if (e.key === 'Escape' && menuOpen) {
      closeMenu();
    }
  });

  // Scroll reveal — progressive enhancement, only if JS runs
  if (window.matchMedia('(prefers-reduced-motion: no-preference)').matches) {
    const reveals = document.querySelectorAll('.reveal');

    function checkReveals() {
      const windowHeight = window.innerHeight;
      reveals.forEach(function (el) {
        const top = el.getBoundingClientRect().top;
        if (top < windowHeight - 80) {
          el.classList.remove('hidden');
        }
      });
    }

    window.addEventListener('scroll', checkReveals, { passive: true });
    window.addEventListener('load', checkReveals);
    // Initial check
    checkReveals();
  }

  // Smooth scroll for anchor links
  document.querySelectorAll('a[href^="#"]').forEach(function (anchor) {
    anchor.addEventListener('click', function (e) {
      const target = document.querySelector(anchor.getAttribute('href'));
      if (target) {
        e.preventDefault();
        const offset = 80;
        const top = target.getBoundingClientRect().top + window.scrollY - offset;
        window.scrollTo({ top: top, behavior: 'smooth' });
      }
    });
  });
})();