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// --- TEXT LOADER ANIMATION ---
const loader = document.getElementById('loader');
const loaderName = document.querySelector('.loader-name');
const loaderTitle = document.querySelector('.loader-title');
const percentage = document.querySelector('.loader-percentage');

// Config
const text = "COLIN POORT";
const targetMap = {
    0: 'C',  // C -> C
    5: 'W',  // Space -> W
    6: 'P'   // P -> P
};
const collapseIndices = [1, 2, 3, 4, 7, 8, 9, 10];

// Generate DOM Structure
loaderName.innerHTML = '';

const wrappers = [];
const tracks = [];

text.split('').forEach((char, index) => {
    const wrapper = document.createElement('span');
    wrapper.className = 'char-wrapper';
    Object.assign(wrapper.style, {
        display: 'inline-block',
        overflow: 'hidden',
        verticalAlign: 'bottom',
        position: 'relative',
        lineHeight: '1.0',
        height: '1em',
        width: 'auto'
    });

    if (char === ' ') {
        wrapper.style.minWidth = '0.3em';
    }

    const track = document.createElement('div');
    track.className = 'char-track';
    Object.assign(track.style, {
        display: 'flex',
        flexDirection: 'column',
        lineHeight: '1em'
    });

    // 1. Top
    const topSpan = document.createElement('span');
    topSpan.textContent = char;
    topSpan.style.display = 'block';
    topSpan.style.height = '1em';
    if (char === ' ') topSpan.innerHTML = ' ';

    // 2. Bottom
    const bottomSpan = document.createElement('span');
    bottomSpan.style.display = 'block';
    bottomSpan.style.height = '1em';

    const targetChar = targetMap[index];
    if (targetChar) {
        bottomSpan.textContent = targetChar;
    } else {
        bottomSpan.innerHTML = ' ';
    }

    track.appendChild(topSpan);
    track.appendChild(bottomSpan);

    wrapper.appendChild(track);
    loaderName.appendChild(wrapper);

    wrappers.push(wrapper);
    tracks.push(track);
});

// LOADER SEQUENCE
const tl = gsap.timeline();

// Check if session exists
const sessionActive = sessionStorage.getItem('sessionActive');

if (!sessionActive) {
    sessionStorage.setItem('sessionActive', 'true');

    // --- FULL ANIMATION ---
    tl.set(tracks, { yPercent: 50 });

    // 0. Counter
    let progress = { value: 0 };
    tl.to(progress, {
        value: 100,
        duration: 1.5,
        ease: "power2.inOut",
        onUpdate: () => {
            percentage.textContent = Math.round(progress.value) + '%';
        }
    });

    // 1. Reveal (Up)
    tl.to(tracks, {
        yPercent: 0,
        duration: 1.0,
        stagger: 0.05,
        ease: "power4.out",
    }, "-=1.3");

    tl.to(loaderTitle, {
        y: 0,
        duration: 1.0,
        ease: "power4.out"
    }, "-=1.0");

    // 2. Scroll (To Target)
    tl.to(tracks, {
        yPercent: -50,
        duration: 0.8,
        stagger: 0.02,
        ease: "power3.inOut"
    });

    tl.to(loaderTitle, { y: -100, opacity: 0, duration: 0.8, ease: "power2.in" }, "<");
    tl.to(percentage, { opacity: 0, duration: 0.5 }, "<");

} else {
    // --- SKIP TO COLLAPSE ---
    // FAST FORWARD STATE
    gsap.set(tracks, { yPercent: -50 });
    gsap.set(loaderTitle, { y: -100, opacity: 0 });
    gsap.set(percentage, { opacity: 0 });
}

// 3. Collapse (Wait 0.2s)
const collapsingWrappers = collapseIndices.map(i => wrappers[i]);
tl.to(collapsingWrappers, {
    width: 0, minWidth: 0, margin: 0, padding: 0,
    duration: 0.8, ease: "power4.inOut"
}, ">+0.1");

// 4. Curtain Reveal (Slide Up) & Hero Text Reveal
const heroText = document.querySelector('.hero-text');

// Initial state for hero text
gsap.set(heroText, { opacity: 0, scale: 0.95, y: 30 });

tl.to(loader, {
    yPercent: -100, // Curtain lift effect
    duration: 1.2,
    ease: "power4.inOut",
    delay: 0.1,
    onStart: () => {
        // Animate hero text as curtain lifts
        gsap.to(heroText, {
            opacity: 1,
            scale: 1,
            y: 0,
            duration: 1.5,
            ease: "power3.out",
            delay: 0.2
        });
    },
    onComplete: () => {
        loader.classList.add('hidden');
    }
});

// HERO SCROLL WORD
const wordTrack = document.querySelector('.word-track');
const pageWrapper = document.querySelector('.page-wrapper');
const speedFactor = 0.5;
let maxTranslateY = 0;

function updateLayout() {
    if (wordTrack && pageWrapper) {
        const wordHeight = wordTrack.firstElementChild.offsetHeight;
        const wordCount = wordTrack.children.length;
        maxTranslateY = (wordCount - 1) * wordHeight;
        const scrollNeeded = maxTranslateY / speedFactor;
        pageWrapper.style.marginTop = `calc(100vh + ${scrollNeeded}px)`;
    }
}
updateLayout();
window.addEventListener('load', updateLayout);
window.addEventListener('resize', updateLayout);

window.addEventListener('scroll', () => {
    const scrollY = window.scrollY;
    let currentTranslate = scrollY * speedFactor;
    if (currentTranslate > maxTranslateY) currentTranslate = maxTranslateY;
    wordTrack.style.transform = `translateY(-${currentTranslate}px)`;

    // Scroll Reveal Logic
    const reveals = document.querySelectorAll('.reveal-on-scroll');
    const windowHeight = window.innerHeight;

    reveals.forEach(el => {
        const elementTop = el.getBoundingClientRect().top;
        if (elementTop < windowHeight - 100) {
            el.classList.add('active');
        }
    });
});

// --- CONTACT SECTION ANIMATION ---
gsap.registerPlugin(ScrollTrigger);

// Adjust .contact-section default CSS to be ready for animation
gsap.set(".contact-section", {
    width: "100%",
    height: "100vh",
    margin: "0",
    marginBottom: "0",
    padding: "0",
    maxWidth: "none", // Ensure no max-width constraints
    borderRadius: "0px",
    borderWidth: "0px" // Start with 0 to avoid glitched double borders at edges
});

gsap.to(".contact-section", {
    width: "calc(100% - 100px)", // More dramatic shrink
    height: "calc(100vh - 100px)", // More dramatic shrink
    margin: "50px 50px 0 50px", // Balances the shrink
    borderRadius: "50px",
    borderWidth: "1px",
    ease: "power2.out",
    scrollTrigger: {
        trigger: ".contact-section",
        start: "top 80%", // Start shrinking when top of section is near bottom of viewport
        end: "center 50%", // End shrinking when center of section is in middle of viewport
        scrub: 1,
        pin: false, // ALLOW SCROLLING (Don't lock)
        onUpdate: (self) => {
            // Hack to ensure border is visible only when shrinking starts
            if (self.progress > 0.01) {
                gsap.set(".contact-section", { borderWidth: "1px" });
            } else {
                gsap.set(".contact-section", { borderWidth: "0px" });
            }
        }
    }
});

// --- CONTACT AMBIENT GLOW ---
const movingGlow = document.querySelector('.moving-glow');

// Create a random movement loop
function moveGlow() {
    // Randomize X and Y independently for organic feel
    gsap.to(movingGlow, {
        x: "random(-200, 200)", // Move comfortably within the section
        y: "random(-100, 100)",
        duration: "random(3, 6)", // Variable speed
        ease: "sine.inOut",
        onComplete: moveGlow
    });

    // Separate scale animation for 'breathing' effect
    gsap.to(movingGlow, {
        scale: "random(0.8, 1.2)",
        duration: "random(2, 4)",
        ease: "sine.inOut",
        overwrite: "auto" // Allow this to run concurrently with position
    });
}

// Start the loop
moveGlow();

// --- HAMBURGER MENU LOGIC ---
const hamburger = document.querySelector('.hamburger-menu');
const mobileNavOverlay = document.querySelector('.mobile-nav-overlay');
const mobileLinks = document.querySelectorAll('.mobile-link');

if (hamburger && mobileNavOverlay) {
    hamburger.addEventListener('click', () => {
        hamburger.classList.toggle('active');
        mobileNavOverlay.classList.toggle('active');

        // Animate links if opening
        if (mobileNavOverlay.classList.contains('active')) {
            gsap.to(mobileLinks, {
                opacity: 1,
                y: 0,
                duration: 0.5,
                stagger: 0.1,
                ease: "power2.out",
                delay: 0.2
            });
        } else {
            // Reset links for next time
            gsap.to(mobileLinks, {
                opacity: 0,
                y: 20,
                duration: 0.3
            });
        }
    });

    // Close menu when a link is clicked
    mobileLinks.forEach(link => {
        link.addEventListener('click', () => {
            hamburger.classList.remove('active');
            mobileNavOverlay.classList.remove('active');
            gsap.to(mobileLinks, {
                opacity: 0,
                y: 20,
                duration: 0.3
            });
        });
    });
}

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