/* ==========================================================================
   ReducerImage — Responsive Breakpoints v3.0 (Mobile-First)
   ========================================================================== */

/* ── Tablet & Small Desktop (max 1100px) ───────────────────────────────── */
@media (max-width: 1100px) {
  .mega-grid-tools  { grid-template-columns: repeat(3, 1fr); }
  .mega-grid-utility{ grid-template-columns: repeat(3, 1fr); }
  .footer-grid      { grid-template-columns: repeat(4, 1fr); }
  .footer-brand     { grid-column: span 4; }
  .grid-4           { grid-template-columns: repeat(3, 1fr); }
  .hero-grid        { gap: var(--space-8); }
  .stats-banner     { grid-template-columns: repeat(2, 1fr); }
/* Fast Hardware Accelerated Hero & Workspace rendering */
.hero-section, .hero-card, .workspace-upload-zone, .workspace-tab, .btn {
  transform: translateZ(0);
  backface-visibility: hidden;
  touch-action: manipulation;
}

/* ── Tablet & Mobile Hero Optimization (max 900px) ───────────────────────── */
@media (max-width: 900px) {
  h1 { font-size: 2.1rem; }
  h2 { font-size: 1.75rem; }

  .hero-section     { min-height: auto !important; padding-top: calc(var(--header-height) + var(--space-4)) !important; padding-bottom: var(--space-8) !important; }
  .hero-grid        { grid-template-columns: 1fr !important; gap: var(--space-6) !important; text-align: center; }
  .hero-content     { text-align: center; display: flex; flex-direction: column; align-items: center; }
  .hero-title       { font-size: clamp(1.85rem, 5.5vw, 2.5rem) !important; line-height: 1.2 !important; margin-bottom: var(--space-3) !important; letter-spacing: -0.02em !important; }
  .hero-title br    { display: none !important; }
  .hero-subtitle    { font-size: 0.95rem !important; line-height: 1.55 !important; margin: 0 auto var(--space-4) !important; max-width: 95% !important; }
  .hero-badge       { margin-bottom: var(--space-3) !important; font-size: 0.75rem !important; }
  
  .hero-audience-presets { width: 100%; text-align: center; margin-top: var(--space-2) !important; margin-bottom: var(--space-4) !important; }
  .hero-audience-presets > div { justify-content: center !important; gap: 4px !important; }
  .hero-audience-presets a.btn-xs { font-size: 0.72rem !important; padding: 4px 10px !important; white-space: normal !important; text-align: center !important; }

  .hero-actions     { width: 100%; flex-direction: column; align-items: stretch; justify-content: center; gap: var(--space-2) !important; margin-bottom: var(--space-4) !important; }
  .hero-actions .btn { width: 100% !important; justify-content: center !important; }
  .hero-formats     { justify-content: center; gap: 4px !important; margin-bottom: var(--space-4) !important; }
  .format-pill      { font-size: 0.65rem !important; padding: 2px 8px !important; }
  .hero-stats       { justify-content: center; gap: var(--space-4); width: 100%; }

  .hero-visual      { width: 100%; }
  .hero-float-badge { display: none !important; }
  .hero-card        { padding: var(--space-4) !important; border-radius: var(--radius-lg) !important; box-shadow: var(--shadow-md) !important; }
  .workspace-upload-zone { padding: var(--space-6) var(--space-3) !important; }
  .workspace-upload-zone p[style*="Ctrl + V"] { display: none !important; }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  .tools-panel { grid-template-columns: 1fr; }
  .controls-card { position: static; }

  .mega-grid-tools  { grid-template-columns: repeat(2, 1fr); }
  .mega-grid-utility{ grid-template-columns: repeat(2, 1fr); }
  .mega-menu { width: min(96vw, 600px); }

  .stats-banner { grid-template-columns: repeat(2, 1fr); }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-brand { grid-column: span 2; }
}

/* ── Landscape Mobile (max 768px) ───────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .section { padding: var(--space-12) 0; }
  .section-sm { padding: var(--space-8) 0; }

  /* Mobile nav */
  .nav-menu {
    position: fixed;
    top: var(--header-height); left: 0; right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column; align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-2);
    margin: 0 !important;
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--t-normal), visibility var(--t-normal);
    border-top: 1px solid var(--border-color);
    overflow-y: auto; z-index: 10001;
  }
  html[data-theme="dark"] .nav-menu {
    background: rgba(15, 15, 30, 0.98);
  }
  .nav-menu.open { transform: translateX(0); visibility: visible; pointer-events: auto; }
  .nav-link { font-size: 0.95rem; width: 100%; padding: 10px 14px; }
  .nav-dropdown { width: 100%; }
  .dropdown-trigger { font-size: 0.95rem; width: 100%; padding: 10px 14px; justify-content: space-between; }

  /* Disable hover mega menus on mobile and convert to inline accordion */
  .mega-menu {
    position: static !important;
    transform: none !important;
    width: 100% !important;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: none;
    backdrop-filter: none;
    opacity: 1; visibility: visible;
    pointer-events: all;
    display: none;
    padding: var(--space-3) !important;
    margin-top: 4px;
    max-height: none !important;
  }
  .nav-dropdown.open .mega-menu { display: block; }
  .mega-grid-tools  { grid-template-columns: repeat(2, 1fr); gap: var(--space-2) var(--space-3); }
  .mega-grid-utility{ grid-template-columns: repeat(2, 1fr); gap: var(--space-2) var(--space-3); }
  .mega-item-text span { display: inline; }

  .hamburger { display: flex !important; flex-shrink: 0; }
  .nav-search-btn, .nav-search-trigger { display: none !important; }
  .btn.nav-upload-btn { display: none; }

  .filter-bar { flex-direction: column; align-items: stretch; gap: var(--space-4); }

  /* Touch-friendly horizontal scrolling for header and workspace tabs on mobile */
  .workspace-tabs,
  .filter-tabs,
  .action-tabs,
  .mode-toggle-group {
    display: flex !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    flex-wrap: nowrap !important;
  }
  .workspace-tabs::-webkit-scrollbar,
  .filter-tabs::-webkit-scrollbar,
  .action-tabs::-webkit-scrollbar,
  .mode-toggle-group::-webkit-scrollbar {
    display: none !important;
  }
  .workspace-tab,
  .filter-tab,
  .action-tab,
  .mode-toggle-btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
  }

  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .tools-panel { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: var(--space-4); justify-content: center; }
  .hero-stat-divider { display: none; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal-links { justify-content: center; }

  .stats-banner { grid-template-columns: repeat(2, 1fr); }

  .comparison-container { height: 260px; }

  /* Step-by-step sections & workflow cards mobile responsiveness */
  .step-card,
  .step-item,
  .process-step,
  .workflow-step,
  .how-it-works-step,
  .config-group,
  .controls-card,
  .workspace-card {
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .config-grid-2,
  .config-grid-3,
  .step-grid,
  .steps-wrapper,
  .workflow-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-4) !important;
  }
}

/* ── Portrait Mobile (max 480px) ─────────────────────────────────────────── */
@media (max-width: 480px) {
  :root { --header-height: 60px; }
  .container { padding: 0 var(--space-4); }

  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.5rem; }

  .hero-actions .btn, .btn-lg, .btn-block { width: 100%; justify-content: center; }
  .btn-icon { width: 40px; }

  .mega-grid-tools  { grid-template-columns: 1fr; }
  .mega-grid-utility{ grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }

  .stats-banner { grid-template-columns: 1fr; gap: var(--space-4); }

  .hero-quick-tools { grid-template-columns: 1fr 1fr; }

  .cookie-banner { bottom: 16px; padding: var(--space-4); width: calc(100% - 32px); }

  .comparison-container { height: 220px; }

  .testimonial-card { padding: var(--space-5); }
}

/* ── Tiny phones (max 360px) ─────────────────────────────────────────────── */
@media (max-width: 360px) {
  .logo span { display: none; }
  .hero-stats { flex-wrap: wrap; gap: var(--space-4); }
  .hero-stat-divider { display: none; }
}

/* ── Desktop specific ────────────────────────────────────────────────────── */
@media (min-width: 769px) {
  .hamburger { display: none !important; }
  .nav-menu { transform: none !important; position: static; flex-direction: row; background: transparent; padding: 0; overflow: visible; }
  .mega-menu { position: fixed !important; }
}

/* ── Ultra-wide ──────────────────────────────────────────────────────────── */
@media (min-width: 1400px) {
  .container { max-width: 1340px; }
  .mega-grid-tools { grid-template-columns: repeat(5, 1fr); }
}

/* ── Print ──────────────────────────────────────────────────────────────── */
@media print {
  .header, .footer, .cookie-banner, .back-to-top, .search-overlay { display: none !important; }
  body { background: #fff; color: #000; }
}

/* ── Reduce motion ──────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Universal Mobile Responsiveness Resets & Workspace Utilities ──────── */
html, body {
  max-width: 100vw;
  overflow-x: hidden;
}

*, *::before, *::after {
  box-sizing: border-box;
}

img, video, canvas, iframe, svg {
  max-width: 100%;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-md);
  display: block;
}

.table-responsive table {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .tools-panel,
  .exif-layout,
  .jpg2pdf-layout,
  .pdf2jpg-layout,
  .splitter-layout,
  .dpi-layout,
  .meme-layout,
  .pixel-layout,
  .stego-layout,
  .color-layout,
  .icon-layout,
  .qr-workspace-grid,
  .converter-layout,
  .batch-layout {
    grid-template-columns: 1fr !important;
    gap: var(--space-6) !important;
  }
}

@media (max-width: 768px) {
  .workspace-card {
    padding: var(--space-4) !important;
    min-height: auto !important;
  }
  .upload-container, .upload-zone, .workspace-upload-zone {
    padding: var(--space-6) var(--space-4) !important;
  }
  .controls-card {
    position: static !important;
    padding: var(--space-4) !important;
  }
  .crop-canvas-el, .pixel-grid-canvas, .annotation-canvas, .qr-preview canvas, .barcode-preview svg {
    max-width: 100% !important;
    height: auto !important;
  }
  .tool-page-hero {
    padding-top: calc(var(--header-height) + var(--space-6)) !important;
    padding-bottom: var(--space-6) !important;
  }
}

@media (max-width: 480px) {
  .meta-row {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 4px !important;
  }
  .meta-val {
    text-align: left !important;
  }
  .action-tabs {
    flex-direction: column !important;
  }
  .exam-specs-grid, .upscale-grid {
    grid-template-columns: 1fr !important;
  }
  .format-selector {
    justify-content: center;
  }
  .btn-group, .hero-actions {
    flex-direction: column !important;
    width: 100% !important;
  }
  .btn-group .btn, .hero-actions .btn {
    width: 100% !important;
  }
}