Device Optimized Modal

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<!--
  Device-optimized Modal Popup with Overlay
  - Accessible dialog implementation
  - Keyboard trap when open
  - Click outside to close
  - Focus management
  - Smooth animations
-->

<button class="modal-trigger" aria-haspopup="dialog">Open Modal</button>

<div class="modal" role="dialog" aria-labelledby="modal-title" aria-modal="true" hidden>
  <div class="modal-overlay" data-close-modal></div>
  
  <div class="modal-content">
    <header class="modal-header">
      <h2 id="modal-title">Modal Title</h2>
      <button class="modal-close" aria-label="Close modal" data-close-modal>
        <svg viewBox="0 0 24 24" width="24" height="24">
          <path d="M18 6L6 18M6 6l12 12" stroke="currentColor" stroke-width="2" stroke-linecap="round"/>
        </svg>
      </button>
    </header>
    
    <div class="modal-body">
      <p>This is the modal content. You can add any HTML content here.</p>
      <p>The modal is fully accessible and can be closed by:</p>
      <ul>
        <li>Clicking the close button</li>
        <li>Clicking the overlay</li>
        <li>Pressing the Escape key</li>
      </ul>
    </div>
    
    <footer class="modal-footer">
      <button class="modal-button" data-close-modal>Close</button>
      <button class="modal-button primary">Confirm</button>
    </footer>
  </div>
</div>

<style>
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 1000;
}

.modal[open] {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 500px;
  background: white;
  border-radius: var(--ds-radius-md, 8px);
  box-shadow: var(--ds-shadow-lg, 0 4px 12px rgba(0, 0, 0, 0.15));
  animation: slideIn 0.3s;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid var(--ds-surface-3, #eee);
}

.modal-title {
  margin: 0;
  font-size: 1.25rem;
}

.modal-close {
  padding: 0.5rem;
  border: none;
  background: none;
  color: var(--ds-muted, #666);
  cursor: pointer;
  transition: color 0.3s;
}

.modal-close:hover {
  color: var(--ds-foreground, #333);
}

.modal-body {
  padding: 1rem;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--ds-surface-3, #eee);
}

.modal-button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--ds-border, #ddd);
  background: white;
  border-radius: var(--ds-radius-sm, 4px);
  cursor: pointer;
  transition: all 0.3s;
}

.modal-button.primary {
  background: var(--ds-accent, #4a90e2);
  border-color: var(--ds-accent, #4a90e2);
  color: white;
}

.modal-button:hover {
  background: var(--ds-surface-2, #f5f5f5);
}

.modal-button.primary:hover {
  background: var(--ds-accent, #357abd);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Focus styles for accessibility */
.modal-close:focus-visible,
.modal-button:focus-visible {
  outline: 2px solid var(--ds-accent, #4a90e2);
  outline-offset: 2px;
}

@media (max-width: 600px) {
  .modal-content {
    margin: 1rem;
  }
  
  .modal-footer {
    flex-direction: column-reverse;
  }
  
  .modal-button {
    width: 100%;
  }
}

/* devsnips-qa:quality-bar */
@media (prefers-reduced-motion: reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}


/* DevSnips design tokens (Swiss) — edit tokens.css to re-theme */
:root{
--ds-bg:#fff;--ds-surface:#fff;--ds-surface-2:#f7f7f7;--ds-surface-3:#ededed;--ds-foreground:#0a0a0a;--ds-muted:#525252;--ds-subtle:#a3a3a3;--ds-border:#e5e5e5;--ds-border-strong:#d4d4d4;--ds-accent:#2563eb;--ds-accent-hover:#1d4ed8;--ds-accent-fg:#fff;--ds-accent-soft:#eff6ff;--ds-success:#16a34a;--ds-success-soft:#f0fdf4;--ds-warning:#d97706;--ds-warning-soft:#fffbeb;--ds-danger:#dc2626;--ds-danger-soft:#fef2f2;--ds-info:#2563eb;--ds-info-soft:#eff6ff;--ds-font-sans:system-ui,-apple-system,'Segoe UI',Roboto,Inter,'Helvetica Neue',Arial,sans-serif;--ds-font-mono:ui-monospace,'SF Mono','JetBrains Mono',Menlo,Consolas,monospace;--ds-text-xs:.75rem;--ds-text-sm:.875rem;--ds-text-base:1rem;--ds-text-lg:1.125rem;--ds-text-xl:1.25rem;--ds-text-2xl:1.5rem;--ds-text-3xl:1.875rem;--ds-text-4xl:2.25rem;--ds-leading-tight:1.25;--ds-leading-normal:1.5;--ds-leading-relaxed:1.625;--ds-weight-normal:400;--ds-weight-medium:500;--ds-weight-semibold:600;--ds-weight-bold:700;--ds-space-0:0;--ds-space-px:1px;--ds-space-1:.25rem;--ds-space-2:.5rem;--ds-space-3:.75rem;--ds-space-4:1rem;--ds-space-5:1.25rem;--ds-space-6:1.5rem;--ds-space-8:2rem;--ds-space-10:2.5rem;--ds-space-12:3rem;--ds-space-16:4rem;--ds-radius-sm:.25rem;--ds-radius-md:.5rem;--ds-radius-lg:.75rem;--ds-radius-xl:1rem;--ds-radius-2xl:1.5rem;--ds-radius-full:9999px;--ds-shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--ds-shadow-md:0 4px 6px -1px rgba(0,0,0,.08),0 2px 4px -2px rgba(0,0,0,.05);--ds-shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.05);--ds-duration-fast:120ms;--ds-duration-normal:200ms;--ds-duration-slow:300ms;--ds-ease-out:cubic-bezier(.16,1,.3,1);--ds-ease-in-out:cubic-bezier(.4,0,.2,1);--ds-ring:0 0 0 2px #2563eb;--ds-container:1200px;--ds-gutter:1rem;
}
@media (prefers-color-scheme: dark){:root{--ds-bg:#0a0a0a;--ds-surface:#111;--ds-surface-2:#171717;--ds-surface-3:#1f1f1f;--ds-foreground:#fafafa;--ds-muted:#a3a3a3;--ds-subtle:#737373;--ds-border:#262626;--ds-border-strong:#404040;--ds-accent:#3b82f6;--ds-accent-hover:#60a5fa;--ds-accent-fg:#fff;--ds-accent-soft:#172554;--ds-success:#22c55e;--ds-success-soft:#052e16;--ds-warning:#f59e0b;--ds-warning-soft:#422006;--ds-danger:#ef4444;--ds-danger-soft:#450a0a;--ds-info:#3b82f6;--ds-info-soft:#172554;--ds-ring:0 0 0 2px #3b82f6;}}
</style>

<script>
class Modal {
  constructor(element) {
    this.modal = element;
    this.trigger = document.querySelector('.modal-trigger');
    this.focusableElements = this.modal.querySelectorAll(
      'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
    );
    this.firstFocusable = this.focusableElements[0];
    this.lastFocusable = this.focusableElements[this.focusableElements.length - 1];
    
    this.bindEvents();
  }
  
  bindEvents() {
    this.trigger.addEventListener('click', () => this.open());
    
    this.modal.querySelectorAll('[data-close-modal]')
      .forEach(el => el.addEventListener('click', () => this.close()));
    
    document.addEventListener('keydown', (e) => {
      if (e.key === 'Escape' && !this.modal.hidden) this.close();
      if (e.key === 'Tab' && !this.modal.hidden) this.handleTab(e);
    });
  }
  
  open() {
    this.modal.hidden = false;
    this.modal.setAttribute('open', '');
    document.body.style.overflow = 'hidden';
    this.firstFocusable.focus();
    
    // Store last focused element to restore later
    this.lastFocused = document.activeElement;
  }
  
  close() {
    this.modal.hidden = true;
    this.modal.removeAttribute('open');
    document.body.style.overflow = '';
    
    // Restore focus
    if (this.lastFocused) {
      this.lastFocused.focus();
    }
  }
  
  handleTab(e) {
    if (e.shiftKey) {
      if (document.activeElement === this.firstFocusable) {
        e.preventDefault();
        this.lastFocusable.focus();
      }
    } else {
      if (document.activeElement === this.lastFocusable) {
        e.preventDefault();
        this.firstFocusable.focus();
      }
    }
  }
}

// Initialize modal
const modal = new Modal(document.querySelector('.modal'));
</script>

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# Snippet 07 Device Optimized Modal

Snippet 07 Device Optimized Modal with responsive design with animations and hover interactions.

**Technology:** vanilla
**Category:** components
**Subcategory:** modals

**Tags:** modal, animation, hover-effect, shadow, responsive, flexbox, center, button



**Responsive:** Yes