/* ============================================
   AW Interiors — Premium Script v3
   Elite microinteractions & animations
   ============================================ */

// ─── PRELOADER ──────────────────────────────
document.body.style.overflow = 'hidden';
window.addEventListener('load', () => {
  const fill = document.getElementById('preloaderFill');
  const preloader = document.getElementById('preloader');
  if (!fill || !preloader) return;
  requestAnimationFrame(() => { fill.style.width = '100%'; });
  setTimeout(() => {
    preloader.classList.add('hidden');
    document.body.style.overflow = 'auto';
    initCounters();
    initReveal();
  }, 2100);
});

// ─── CUSTOM CURSOR ───────────────────────────
const cursor = document.getElementById('cursor');
const follower = document.getElementById('cursor-follower');
if (cursor && follower) {
  let mX = window.innerWidth / 2;
  let mY = window.innerHeight / 2;
  let fX = mX, fY = mY;
  let raf;

  document.addEventListener('mousemove', (e) => {
    mX = e.clientX;
    mY = e.clientY;
    cursor.style.left = mX + 'px';
    cursor.style.top = mY + 'px';
  });

  document.addEventListener('mousedown', () => document.body.classList.add('cursor-click'));
  document.addEventListener('mouseup', () => document.body.classList.remove('cursor-click'));
  document.addEventListener('mouseleave', () => { cursor.style.opacity = '0'; follower.style.opacity = '0'; });
  document.addEventListener('mouseenter', () => { cursor.style.opacity = ''; follower.style.opacity = ''; });

  (function loopFollower() {
    fX += (mX - fX) * 0.095;
    fY += (mY - fY) * 0.095;
    follower.style.left = fX + 'px';
    follower.style.top = fY + 'px';
    requestAnimationFrame(loopFollower);
  })();

  const hoverTargets = 'a, button, .portfolio-item, .tag, .filter-btn, .process-step, .testimonial-card, .award-item, .contact-detail';
  document.querySelectorAll(hoverTargets).forEach(el => {
    el.addEventListener('mouseenter', () => document.body.classList.add('cursor-hover'));
    el.addEventListener('mouseleave', () => document.body.classList.remove('cursor-hover'));
  });
}

// ─── NAV SCROLL ──────────────────────────────
const nav = document.getElementById('nav');
let lastScrollY = 0;
window.addEventListener('scroll', () => {
  const y = window.scrollY;
  if (nav) nav.classList.toggle('scrolled', y > 60);
  lastScrollY = y;
}, { passive: true });

// ─── MOBILE NAV ───────────────────────────────
const navToggle = document.getElementById('navToggle');
const navMobile = document.getElementById('navMobile');
if (navToggle && navMobile) {
  navToggle.addEventListener('click', () => {
    const open = navMobile.classList.toggle('open');
    navToggle.classList.toggle('open', open);
    navToggle.setAttribute('aria-expanded', String(open));
    document.body.style.overflow = open ? 'hidden' : '';
  });
  navMobile.querySelectorAll('a').forEach(a => {
    a.addEventListener('click', () => {
      navMobile.classList.remove('open');
      navToggle.classList.remove('open');
      document.body.style.overflow = '';
    });
  });
}

// ─── PARTICLES ────────────────────────────────
(function createParticles() {
  const container = document.getElementById('heroParticles');
  if (!container) return;
  const style = document.createElement('style');
  style.textContent = `
    @keyframes pFloat {
      0%,100%{transform:translateY(0) translateX(0) scale(1);opacity:var(--op)}
      30%{transform:translateY(-24px) translateX(14px) scale(1.12);opacity:calc(var(--op)*1.6)}
      65%{transform:translateY(16px) translateX(-10px) scale(0.88);opacity:calc(var(--op)*0.5)}
    }
  `;
  document.head.appendChild(style);
  for (let i = 0; i < 28; i++) {
    const p = document.createElement('div');
    const size = (Math.random() * 2.8 + 0.5).toFixed(1);
    const op = (Math.random() * 0.22 + 0.04).toFixed(2);
    p.style.cssText = [
      'position:absolute',
      `width:${size}px`, `height:${size}px`,
      'background:rgba(200,169,106,1)',
      'border-radius:50%',
      `left:${(Math.random() * 92 + 4).toFixed(1)}%`,
      `top:${(Math.random() * 92 + 4).toFixed(1)}%`,
      `--op:${op}`,
      `opacity:${op}`,
      `animation:pFloat ${(Math.random() * 12 + 9).toFixed(1)}s ease-in-out infinite`,
      `animation-delay:-${(Math.random() * 8).toFixed(1)}s`,
      'pointer-events:none',
      'will-change:transform'
    ].join(';');
    container.appendChild(p);
  }
})();

// ─── REVEAL ON SCROLL ─────────────────────────
let revealObserver;
function initReveal() {
  revealObserver = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
      if (!entry.isIntersecting) return;
      const el = entry.target;
      el.classList.add('visible');
      revealObserver.unobserve(el);
    });
  }, { threshold: 0.07, rootMargin: '0px 0px -48px 0px' });

  document.querySelectorAll('.reveal').forEach((el) => {
    const siblings = Array.from(el.parentElement.querySelectorAll('.reveal'));
    const idx = siblings.indexOf(el);
    if (idx > 0 && idx < 6) {
      const existing = parseFloat(el.style.transitionDelay) || 0;
      el.style.transitionDelay = (existing + idx * 0.09) + 's';
    }
    revealObserver.observe(el);
  });
}

// ─── COUNTER ANIMATION ────────────────────────
function initCounters() {
  const easeOutExpo = t => t === 1 ? 1 : 1 - Math.pow(2, -10 * t);
  document.querySelectorAll('.hero-stat-num').forEach(el => {
    const target = parseInt(el.dataset.count, 10);
    if (!target) return;
    const dur = 2000;
    const start = performance.now();
    function tick(now) {
      const p = Math.min((now - start) / dur, 1);
      el.textContent = Math.round(easeOutExpo(p) * target);
      if (p < 1) requestAnimationFrame(tick);
      else el.textContent = target;
    }
    requestAnimationFrame(tick);
  });
}

// ─── PORTFOLIO FILTER ─────────────────────────
const filterBtns = document.querySelectorAll('.filter-btn');
const portfolioItems = document.querySelectorAll('.portfolio-item');

filterBtns.forEach(btn => {
  btn.addEventListener('click', () => {
    if (btn.classList.contains('active')) return;
    filterBtns.forEach(b => b.classList.remove('active'));
    btn.classList.add('active');
    const filter = btn.dataset.filter;
    let delay = 0;
    portfolioItems.forEach(item => {
      const match = filter === 'all' || item.dataset.category === filter;
      if (match) {
        item.classList.remove('filtered-out');
        item.style.opacity = '0';
        item.style.transform = 'translateY(12px) scale(0.98)';
        item.style.transition = 'none';
        requestAnimationFrame(() => {
          setTimeout(() => {
            item.style.transition = `opacity 0.55s ease ${delay}s, transform 0.55s cubic-bezier(0.16,1,0.3,1) ${delay}s`;
            item.style.opacity = '1';
            item.style.transform = 'translateY(0) scale(1)';
          }, 16);
        });
        delay += 0.06;
      } else {
        item.style.transition = 'opacity 0.3s ease, transform 0.3s ease';
        item.style.opacity = '0';
        item.style.transform = 'scale(0.97)';
        setTimeout(() => {
          item.classList.add('filtered-out');
          item.style.opacity = '';
          item.style.transform = '';
          item.style.transition = '';
        }, 310);
      }
    });
  });
});

// ─── MAGNETIC BUTTONS ─────────────────────────
document.querySelectorAll('.btn-primary, .nav-cta').forEach(btn => {
  btn.addEventListener('mousemove', (e) => {
    const rect = btn.getBoundingClientRect();
    const dx = (e.clientX - rect.left - rect.width / 2) * 0.22;
    const dy = (e.clientY - rect.top - rect.height / 2) * 0.22;
    btn.style.transform = `translate(${dx}px, ${dy}px)`;
  });
  btn.addEventListener('mouseleave', () => {
    btn.style.transform = '';
  });
});

// ─── CONTACT FORM ─────────────────────────────
const form = document.getElementById('contactForm');
const formSuccess = document.getElementById('formSuccess');
if (form) {
  form.addEventListener('submit', (e) => {
    e.preventDefault();
    const btn = form.querySelector('button[type="submit"]');
    if (btn.disabled) return;
    const originalHTML = btn.innerHTML;
    btn.innerHTML = `<span>Wysyłanie</span><svg width="18" height="18" viewBox="0 0 24 24" fill="none" style="animation:spinBtn 0.85s linear infinite"><circle cx="12" cy="12" r="10" stroke="currentColor" stroke-width="1.5" stroke-dasharray="40 22" stroke-linecap="round"/></svg>`;
    btn.disabled = true;
    if (!document.getElementById('spinBtnStyle')) {
      const s = document.createElement('style');
      s.id = 'spinBtnStyle';
      s.textContent = '@keyframes spinBtn{to{rotate:360deg}}';
      document.head.appendChild(s);
    }
    setTimeout(() => {
      form.reset();
      if (formSuccess) {
        formSuccess.classList.add('visible');
        setTimeout(() => formSuccess.classList.remove('visible'), 5500);
      }
      btn.innerHTML = originalHTML;
      btn.disabled = false;
    }, 1700);
  });

  // Live label animation for select
  const select = form.querySelector('select');
  if (select) {
    select.style.color = 'rgba(244,239,232,0.3)';
    select.addEventListener('change', () => {
      select.style.color = select.value ? 'var(--white)' : 'rgba(244,239,232,0.3)';
    });
  }
}

// ─── SMOOTH ANCHOR SCROLL ─────────────────────
document.querySelectorAll('a[href^="#"]').forEach(link => {
  link.addEventListener('click', (e) => {
    const href = link.getAttribute('href');
    if (href === '#') return;
    const target = document.querySelector(href);
    if (target) {
      e.preventDefault();
      const navH = parseInt(getComputedStyle(document.documentElement).getPropertyValue('--nav-h'), 10) || 78;
      const offset = target.getBoundingClientRect().top + window.scrollY - navH;
      window.scrollTo({ top: offset, behavior: 'smooth' });
    }
  });
});

// ─── PARALLAX ─────────────────────────────────
function onScroll() {
  const y = window.scrollY;
  const heroGrid = document.querySelector('.hero-grid');
  if (heroGrid && y < window.innerHeight * 1.6) {
    heroGrid.style.transform = `translateY(${y * 0.22}px)`;
  }
  const philoBg = document.querySelector('.philosophy-bg');
  if (philoBg) {
    const rect = philoBg.parentElement.getBoundingClientRect();
    if (rect.top < window.innerHeight && rect.bottom > 0) {
      const progress = (window.innerHeight - rect.top) / (window.innerHeight + rect.height);
      philoBg.style.transform = `scale(1.06) translateY(${(progress - 0.5) * -28}px)`;
    }
  }
}
window.addEventListener('scroll', onScroll, { passive: true });

// ─── SECTION SEPARATOR LINES ──────────────────
const sepStyle = document.createElement('style');
sepStyle.textContent = `
  .section-sep{height:1px;background:linear-gradient(to right,transparent,rgba(200,169,106,0.28),transparent);transform:scaleX(0);transform-origin:left;transition:transform 1.3s cubic-bezier(0.16,1,0.3,1)}
  .section-sep.line-visible{transform:scaleX(1)}
`;
document.head.appendChild(sepStyle);
const lineObs = new IntersectionObserver((entries) => {
  entries.forEach(e => { if (e.isIntersecting) e.target.classList.add('line-visible'); });
}, { threshold: 0.3 });
document.querySelectorAll('.section-sep').forEach(el => lineObs.observe(el));

// ─── TILT ON HOVER — PORTFOLIO CARDS ──────────
document.querySelectorAll('.portfolio-item').forEach(card => {
  card.addEventListener('mousemove', (e) => {
    const rect = card.getBoundingClientRect();
    const x = (e.clientX - rect.left) / rect.width - 0.5;
    const y = (e.clientY - rect.top) / rect.height - 0.5;
    card.style.transform = `translateY(-3px) rotateX(${-y * 4}deg) rotateY(${x * 4}deg)`;
  });
  card.addEventListener('mouseleave', () => {
    card.style.transform = '';
  });
});