Ejemplo de pie de página y encabezado HTML

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h<div class="header">
  <div class="nav-section">
    <div class="logo-container">
      <div class="logo-circles">
        <div class="circle circle-1"></div>
        <div class="circle circle-2"></div>
      </div>
    </div>
  </div>

<div class="values-section">
    <h3>+Menu</h3>
    <ul>
      <li><a href="#">Clarity</a></li>
      <li><a href="#">Simplicity</a></li>
      <li><a href="#">Creativity</a></li>
      <li><a href="#">Authenticity</a></li>
      <li><a href="#">Connect</a></li>
    </ul>
  </div>

<div class="location-section">
    <h3>+Location</h3>
    <p>6357 Selma Ave</p>
    <p>Los Angeles</p>
    <p>CA 90028</p>
  </div>

<div class="contact-section">
    <h3>+Get In Touch</h3>
    <p>(310) 456-7890</p>
    <p><a href="mailto:hi@filip.fyi">hi@filip.fyi</a></p>
  </div>

<div class="social-section">
    <h3>+Social</h3>
    <ul>
      <li><a href="https://instagram.com/filipz__">Instagram</a></li>
      <li><a href="https://x.com/filipz">X / Twitter</a></li>
      <li><a href="https://linkedin.com/in/filipzrnzevic">LinkedIn</a></li>
    </ul>
  </div>
</div>

<div class="footer">
  <div class="coordinates-section">
    <p>34.0522° N, 118.2437° W</p>
  </div>
  <div class="links-section">
    <p>Press <span class="key-hint">H</span> to toggle panel</p>
  </div>
  <div class="info-section">
    <p>Est. 2025 • Summer Days</p>
  </div>
</div>

<div class="page-vignette-container">
  <div class="page-vignette"></div>
  <div class="page-vignette-strong"></div>
  <div class="page-vignette-extreme"></div>
</div>

CSS

@import url("https://fonts.cdnfonts.com/css/thegoodmonolith");

@font-face {
  src: url("https://fonts.cdnfonts.com/css/pp-neue-montreal") format("woff2");
  font-family: "PP Neue Montreal", sans-serif;
  font-weight: 400;
}

:root {
  --spacing-base: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --color-text: #ffffff;
  --color-text-dim: 0.6;
  --transition-medium: 0.3s ease;
  --font-size-base: 14px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

body {
  font-family: "PP Neue Montreal", sans-serif;
  background-color: #000000;
  color: #ffffff;
  overflow: hidden;
  position: relative;
}

/* Animated noise effect */
body::before {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: transparent
    url("http://assets.iceable.com/img/noise-transparent.png") repeat 0 0;
  background-size: 300px 300px;
  animation: noise-animation 0.3s steps(5) infinite;
  opacity: 0.9;
  will-change: transform;
  z-index: 100;
  pointer-events: none;
}

@keyframes noise-animation {
  0% {
    transform: translate(0, 0);
  }

10% {
    transform: translate(-2%, -3%);
  }

20% {
    transform: translate(-4%, 2%);
  }

30% {
    transform: translate(2%, -4%);
  }

40% {
    transform: translate(-2%, 5%);
  }

50% {
    transform: translate(-4%, 2%);
  }

60% {
    transform: translate(3%, 0);
  }

70% {
    transform: translate(0, 3%);
  }

80% {
    transform: translate(-3%, 0);
  }

90% {
    transform: translate(2%, 2%);
  }

100% {
    transform: translate(1%, 0);
  }
}

.coordinates-section {
  grid-column: 1 / span 3;
  font-family: "TheGoodMonolith", monospace;
}

/* Key hint styling */
.key-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border: 1px solid var(--color-text);
  border-radius: 3px;
  font-size: 12px;
  margin: 0 3px;
  min-width: 20px;
  height: 20px;
}

/* Footer text styling */
.footer p {
  font-family: "TheGoodMonolith", monospace;
}

/* Global link styling */
a {
  position: relative;
  cursor: pointer;
  color: var(--color-text);
  padding: 0;
  display: inline-block;
  z-index: 1;
  text-decoration: none;
  font-size: var(--font-size-base);
  opacity: 1;
  transition: color var(--transition-medium);
  font-weight: 700;
}

a::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: var(--color-text);
  z-index: -1;
  transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

a:hover::after,
.links span:hover::after {
  width: 100%;
}

a:hover,
.links span:hover {
  color: black;
  mix-blend-mode: difference;
  opacity: 1;
}

p {
  display: block;
  text-decoration: none;
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01rem;
  -webkit-font-smoothing: antialiased;
}

ul {
  list-style: none;
}

h3 {
  font-size: 14px;
  margin-bottom: var(--spacing-base);
  font-weight: 600;
}

/* Header and Footer */
.header,
.footer {
  position: absolute;
  left: 0;
  width: 100vw;
  padding: 1.5rem;
  z-index: 10000;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--spacing-base);
}

.header {
  top: 0;
}

.footer {
  bottom: 0;
}

/* Grid column assignments */
.nav-section {
  grid-column: 1 / span 3;
}

.values-section {
  grid-column: 5 / span 2;
}

.location-section {
  grid-column: 7 / span 2;
}

.contact-section {
  grid-column: 9 / span 2;
}

.social-section {
  grid-column: 11 / span 2;
  text-align: right;
}

/* Bottom bar */
.coordinates-section {
  grid-column: 1 / span 3;
}

.links-section {
  grid-column: 5 / span 4;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-base);
}

.info-section {
  grid-column: 9 / span 4;
  text-align: right;
}

/* ===== LOGO COMPONENT ===== */
.logo-container {
  margin-bottom: var(--spacing-md);
  display: block;
  width: 3rem;
  height: 1.5rem;
  position: relative;
}

.logo-circles {
  position: relative;
  width: 100%;
  height: 100%;
}

.circle {
  position: absolute;
  border-radius: 50%;
  transition: transform var(--transition-medium);
  width: 1.4rem;
  height: 1.4rem;
  background-color: var(--color-text);
  top: 50%;
}

.circle-1 {
  left: 0;
  transform: translate(0, -50%);
}

.circle-2 {
  left: 0.8rem;
  transform: translate(0, -50%);
  mix-blend-mode: exclusion;
}

.logo-container:hover .circle-1 {
  transform: translate(-0.5rem, -50%);
}

.logo-container:hover .circle-2 {
  transform: translate(0.5rem, -50%);
}

.container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  cursor: grab;
}

.canvas {
  position: absolute;
  will-change: transform;
}

.item {
  position: absolute;
  overflow: hidden;
  background-color: #000000;
  cursor: pointer;
  border-radius: var(--border-radius, 0px);
}

.item-image-container {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.item-image-container::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  box-shadow: inset 0 0 var(--vignette-size, 0px) rgba(0, 0, 0, 0.5);
  z-index: 1;
}

.item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  transition: transform 0.3s ease;
}

.item:hover img {
  transform: scale(var(--hover-scale, 1.05));
}

.item-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 10px;
  z-index: 2;
}

/* Project title needs to be above everything */
.project-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
  pointer-events: none;
  z-index: 10002;
  /* Increased to be above expanded-item */
}

.project-title p {
  position: relative;
  height: 42px;
  color: #ffffff;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
  overflow: hidden;
}

.project-title p .word {
  position: relative;
  display: inline-block;
  font-family: "PP Neue Montreal", sans-serif;
  font-size: 36px;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  transform: translateY(0%);
  will-change: transform;
}

.item-name {
  font-family: "PP Neue Montreal", sans-serif;
  color: #ffffff;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  margin-bottom: 2px;
  position: relative;
  overflow: hidden;
  height: 16px;
}

.item-name .word {
  position: relative;
  display: inline-block;
  will-change: transform;
}

.item-number {
  font-family: "TheGoodMonolith", monospace;
  color: #888888;
  font-size: 10px;
  font-weight: 400;
  position: relative;
  overflow: hidden;
  height: 14px;
}

.item-number .char {
  position: relative;
  display: inline-block;
  will-change: transform;
}

/* Expanded item should be above overlay but below titles and captions */
.expanded-item {
  position: fixed;
  z-index: 10000;
  /* Lower than project-title and caption-clone */
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #000000;
  overflow: hidden;
  cursor: pointer;
  border-radius: var(--border-radius, 0px);
}

.expanded-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000000;
  pointer-events: none;
  opacity: 0;
  z-index: 9999;
  /* Below expanded-item but above other content */
}

.overlay.active {
  pointer-events: auto;
}

/* Page vignette effect */
.page-vignette-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
  /* Below overlay */
}

.page-vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 0 0 var(--page-vignette-size, 0px)
    var(--page-vignette-color, rgba(0, 0, 0, 0.9));
}

.page-vignette-strong {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 0 0 var(--page-vignette-strong-size, 0px)
    var(--page-vignette-strong-color, rgba(0, 0, 0, 0.95));
}

.page-vignette-extreme {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 0 0 var(--page-vignette-extreme-size, 0px)
    var(--page-vignette-extreme-color, rgba(0, 0, 0, 1));
}

/* Tweakpane styles */
.tp-dfwv {
  z-index: 10000 !important;
}

/* Make sure the Tweakpane tab is visible when collapsed */
.tp-rotv {
  opacity: 0.5 !important;
}

.tp-rotv.tp-rotv-expanded {
  opacity: 1 !important;
}

.tp-rotv.tp-rotv-collapsed {
  opacity: 0.7 !important;
}

/* Caption clone needs to be above expanded item */
.caption-clone {
  position: fixed;
  z-index: 10002;
  /* Same as project-title to be above expanded-item */
}

/* Clone styles for animation */
.caption-clone {
  position: fixed;
  z-index: 10001;
}

.caption-clone .item-name,
.caption-clone .item-number {
  overflow: hidden;
}

JS

import { Pane } from "https://cdn.skypack.dev/tweakpane@4.0.4";
window.Pane = Pane;

// Register GSAP plugins
gsap.registerPlugin(CustomEase);
CustomEase.create("hop", "0.9, 0, 0.1, 1");
// Project titles
const items = [
  "Chromatic Loopscape",
  "Solar Bloom",
  "Neon Handscape",
  "Echo Discs",
  "Void Gaze",
  "Gravity Sync",
  "Heat Core",
  "Fractal Mirage",
  "Nova Pulse",
  "Sonic Horizon",
  "Dream Circuit",
  "Lunar Mesh",
  "Radiant Dusk",
  "Pixel Drift",
  "Vortex Bloom",
  "Shadow Static",
  "Crimson Phase",
  "Retro Cascade",
  "Photon Fold",
  "Zenith Flow"
];
// Image URLs - replace with your actual image URLs
const imageUrls = [
  "https://cdn.cosmos.so/0f164449-f65e-4584-9d62-a9b3e1f4a90a?format=jpeg",
  "https://cdn.cosmos.so/74ccf6cc-7672-4deb-ba13-1727b7dc6146?format=jpeg",
  "https://cdn.cosmos.so/2f49a117-05e7-4ae9-9e95-b9917f970adb?format=jpeg",
  "https://cdn.cosmos.so/7b5340f5-b4dc-4c08-8495-c507fa81480b?format=jpeg",
  "https://cdn.cosmos.so/f733585a-081e-48e7-a30e-e636446f2168?format=jpeg",
  "https://cdn.cosmos.so/47caf8a0-f456-41c5-98ea-6d0476315731?format=jpeg",
  "https://cdn.cosmos.so/f99f8445-6a19-4a9a-9de3-ac382acc1a3f?format=jpeg"
];
const container = document.querySelector(".container");
const canvas = document.getElementById("canvas");
const overlay = document.getElementById("overlay");
const projectTitleElement = document.querySelector(".project-title p");
// Settings object for Tweakpane
const settings = {
  // Item sizes
  baseWidth: 400,
  smallHeight: 330,
  largeHeight: 500,
  itemGap: 65,
  hoverScale: 1.05,
  expandedScale: 0.4, // Percentage of viewport width
  dragEase: 0.075,
  momentumFactor: 200,
  bufferZone: 3,
  borderRadius: 0,
  vignetteSize: 0,
  // Page vignette settings - simplified to two main controls
  vignetteStrength: 0.7, // Controls opacity of all layers
  vignetteSize: 200, // Controls size of all layers
  // Overlay settings
  overlayOpacity: 0.9,
  overlayEaseDuration: 0.8,
  // Animation durations
  zoomDuration: 0.6 // Reduced from 1.0 to 0.6 for faster zoom
};
// Define item sizes based on settings
let itemSizes = [
  {
    width: settings.baseWidth,
    height: settings.smallHeight
  },
  {
    width: settings.baseWidth,
    height: settings.largeHeight
  }
];
let itemGap = settings.itemGap;
let columns = 4;
const itemCount = items.length;
// Calculate grid cell size based on the largest possible item
let cellWidth = settings.baseWidth + settings.itemGap;
let cellHeight =
  Math.max(settings.smallHeight, settings.largeHeight) + settings.itemGap;
let isDragging = false;
let startX, startY;
let targetX = 0,
  targetY = 0;
let currentX = 0,
  currentY = 0;
let dragVelocityX = 0,
  dragVelocityY = 0;
let lastDragTime = 0;
let mouseHasMoved = false;
let visibleItems = new Set();
let lastUpdateTime = 0;
let lastX = 0,
  lastY = 0;
let isExpanded = false;
let activeItem = null;
let activeItemId = null;
let canDrag = true;
let originalPosition = null;
let expandedItem = null;
let overlayAnimation = null;
let titleSplit = null;
let activeCaptionNameSplit = null;
let activeCaptionNumberSplit = null;
let paneInstance = null;
// Initialize Tweakpane
function initTweakpane() {
  // Wait for Pane to be available (imported via ES module)
  if (!window.Pane) {
    setTimeout(initTweakpane, 100);
    return;
  }
  // Create the pane with a title and make it visible even when collapsed
  paneInstance = new window.Pane({
    title: "Gallery Settings",
    expanded: false
  });
  // Make sure the pane is visible by styling its container
  const paneElement = paneInstance.element;
  paneElement.style.position = "fixed";
  paneElement.style.top = "10px";
  paneElement.style.right = "10px";
  paneElement.style.zIndex = "10000";
  // Item size settings
  const sizeFolder = paneInstance.addFolder({
    title: "Item Sizes",
    expanded: false
  });
  sizeFolder
    .addBinding(settings, "baseWidth", {
      min: 100,
      max: 600,
      step: 10
    })
    .on("change", updateSettings);
  sizeFolder
    .addBinding(settings, "smallHeight", {
      min: 100,
      max: 400,
      step: 10
    })
    .on("change", updateSettings);
  sizeFolder
    .addBinding(settings, "largeHeight", {
      min: 100,
      max: 600,
      step: 10
    })
    .on("change", updateSettings);
  // Layout settings
  const layoutFolder = paneInstance.addFolder({
    title: "Layout",
    expanded: false
  });
  layoutFolder
    .addBinding(settings, "itemGap", {
      min: 0,
      max: 100,
      step: 5
    })
    .on("change", updateSettings);
  layoutFolder
    .addBinding(settings, "bufferZone", {
      min: 1,
      max: 5,
      step: 0.5
    })
    .on("change", updateSettings);
  // Style settings
  const styleFolder = paneInstance.addFolder({
    title: "Style",
    expanded: false
  });
  styleFolder
    .addBinding(settings, "borderRadius", {
      min: 0,
      max: 16,
      step: 1
    })
    .on("change", updateBorderRadius);
  // Item vignette settings
  const itemVignetteFolder = paneInstance.addFolder({
    title: "Item Vignette",
    expanded: false
  });
  itemVignetteFolder
    .addBinding(settings, "vignetteSize", {
      min: 0,
      max: 50,
      step: 1
    })
    .on("change", updateVignetteSize);
  // Page vignette settings - simplified to two controls
  const pageVignetteFolder = paneInstance.addFolder({
    title: "Page Vignette",
    expanded: false
  });
  pageVignetteFolder
    .addBinding(settings, "vignetteStrength", {
      min: 0,
      max: 1,
      step: 0.05
    })
    .on("change", updatePageVignette);
  pageVignetteFolder
    .addBinding(settings, "vignetteSize", {
      min: 0,
      max: 500,
      step: 10
    })
    .on("change", updatePageVignette);
  // Overlay settings
  const overlayFolder = paneInstance.addFolder({
    title: "Overlay Animation",
    expanded: false
  });
  overlayFolder.addBinding(settings, "overlayOpacity", {
    min: 0,
    max: 1,
    step: 0.05
  });
  overlayFolder.addBinding(settings, "overlayEaseDuration", {
    min: 0.2,
    max: 2,
    step: 0.1
  });
  // Animation settings
  const animationFolder = paneInstance.addFolder({
    title: "Animation",
    expanded: false
  });
  animationFolder
    .addBinding(settings, "hoverScale", {
      min: 1,
      max: 1.5,
      step: 0.05
    })
    .on("change", updateHoverScale);
  animationFolder.addBinding(settings, "expandedScale", {
    min: 0.2,
    max: 0.8,
    step: 0.05
  });
  animationFolder.addBinding(settings, "dragEase", {
    min: 0.01,
    max: 0.2,
    step: 0.01
  });
  animationFolder.addBinding(settings, "momentumFactor", {
    min: 50,
    max: 500,
    step: 10
  });
  animationFolder.addBinding(settings, "zoomDuration", {
    min: 0.2,
    max: 1.5,
    step: 0.1
  });
  // Add a button to reset the view
  paneInstance
    .addButton({
      title: "Reset View"
    })
    .on("click", () => {
      targetX = 0;
      targetY = 0;
    });
  // Add keyboard shortcut for toggling the panel
  window.addEventListener("keydown", (e) => {
    // Toggle panel visibility with the 'h' key
    if (e.key === "h" || e.key === "H") {
      togglePaneVisibility();
    }
  });
}
// Function to toggle the panel visibility
function togglePaneVisibility() {
  if (!paneInstance) return;
  const element = paneInstance.element;
  if (element.style.display === "none") {
    element.style.display = "";
  } else {
    element.style.display = "none";
  }
}
// Update CSS variable for border radius
function updateBorderRadius() {
  document.documentElement.style.setProperty(
    "--border-radius",
    `${settings.borderRadius}px`
  );
}
// Update CSS variable for item vignette
function updateVignetteSize() {
  document.documentElement.style.setProperty(
    "--vignette-size",
    `${settings.vignetteSize}px`
  );
}
// Update CSS variable for page vignette - now using the simplified controls
function updatePageVignette() {
  const strength = settings.vignetteStrength;
  const size = settings.vignetteSize;
  // Regular vignette (outer layer)
  const regularOpacity = strength * 0.7;
  const regularSize = size * 1.5;
  document.documentElement.style.setProperty(
    "--page-vignette-size",
    `${regularSize}px`
  );
  document.documentElement.style.setProperty(
    "--page-vignette-color",
    `rgba(0,0,0,${regularOpacity})`
  );
  // Strong vignette (middle layer)
  const strongOpacity = strength * 0.85;
  const strongSize = size * 0.75;
  document.documentElement.style.setProperty(
    "--page-vignette-strong-size",
    `${strongSize}px`
  );
  document.documentElement.style.setProperty(
    "--page-vignette-strong-color",
    `rgba(0,0,0,${strongOpacity})`
  );
  // Extreme vignette (inner layer)
  const extremeOpacity = strength;
  const extremeSize = size * 0.4;
  document.documentElement.style.setProperty(
    "--page-vignette-extreme-size",
    `${extremeSize}px`
  );
  document.documentElement.style.setProperty(
    "--page-vignette-extreme-color",
    `rgba(0,0,0,${extremeOpacity})`
  );
}
// Update CSS variable for hover scale
function updateHoverScale() {
  // Use CSS variables instead of directly modifying CSS rules
  document.documentElement.style.setProperty(
    "--hover-scale",
    settings.hoverScale
  );
  // Update all existing items with the new hover scale
  document.querySelectorAll(".item").forEach((item) => {
    const img = item.querySelector("img");
    if (img) {
      img.style.transition = "transform 0.3s ease";
    }
  });
}
// Update settings and rebuild the grid
function updateSettings() {
  // Update item sizes
  itemSizes = [
    {
      width: settings.baseWidth,
      height: settings.smallHeight
    },
    {
      width: settings.baseWidth,
      height: settings.largeHeight
    }
  ];
  itemGap = settings.itemGap;
  // Remove columns dependency - use a fixed value
  columns = 4;
  // Recalculate cell dimensions
  cellWidth = settings.baseWidth + settings.itemGap;
  cellHeight =
    Math.max(settings.smallHeight, settings.largeHeight) + settings.itemGap;
  // Clear existing items and rebuild
  visibleItems.forEach((itemId) => {
    const item = document.getElementById(itemId);
    if (item && item.parentNode === canvas) {
      canvas.removeChild(item);
    }
  });
  visibleItems.clear();
  updateVisibleItems();
  // Update visual styles
  updateBorderRadius();
  updateVignetteSize();
  updateHoverScale();
  updatePageVignette();
}

function animateTitleIn() {
  gsap.fromTo(
    titleSplit.words,
    {
      y: "100%",
      opacity: 0
    },
    {
      y: "0%",
      opacity: 1,
      duration: 1,
      stagger: 0.1,
      ease: "power3.out"
    }
  );
}

function handleItemClick(item, itemIndex) {
  if (isExpanded) {
    if (expandedItem) closeExpandedItem();
  } else {
    expandItem(item, itemIndex);
  }
}

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