/* ==========================================================================
   PDFALLTOOL - Professional Design System & Stylesheet
   Architecture: Pure Modern CSS3, CSS Custom Properties, Mobile-First
   Palette: Executive Tech Indigo & Obsidian Slate
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens & Root Variables
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette - Tech Indigo / Cobalt */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-dark: #1e40af;
  --primary-light: #eff6ff;
  --primary-rgb: 37, 99, 235;
  --primary-glow: rgba(37, 99, 235, 0.22);
  --primary-gradient: linear-gradient(135deg, #1e40af 0%, #2563eb 45%, #0284c7 90%);

  /* Secondary Accents */
  --accent: #0284c7;
  --accent-hover: #0369a1;
  --accent-light: #f0f9ff;
  --accent-rgb: 2, 132, 199;

  /* State Colors */
  --success: #059669;
  --success-hover: #047857;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  --warning: #d97706;
  --warning-hover: #b45309;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;

  /* Surfaces & Neutrals - Light Theme (Crisp Slate) */
  --bg: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --border-subtle: #f1f5f9;

  /* Typography Colors */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --text-inverse: #ffffff;

  /* Ambient Multi-Layered Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.07), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 8px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 20px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
  --shadow-xl: 0 20px 28px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 0 1px rgba(37, 99, 235, 0.15), 0 8px 24px -4px rgba(37, 99, 235, 0.2);

  /* Geometry & Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Layout Boundaries */
  --max-w: 1240px;
  --max-w-narrow: 840px;
  --max-w-read: 780px;
  --header-h: 68px;

  /* Physics Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Dark Mode - Premium Deep Obsidian & Night Slate
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --bg: #090d16;
  --bg-surface: #111827;
  --bg-surface-elevated: #161f30;
  --bg-subtle: #0f172a;
  --bg-alt: #0c121e;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-subtle: rgba(255, 255, 255, 0.04);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-inverse: #090d16;

  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-dark: #2563eb;
  --primary-light: rgba(59, 130, 246, 0.14);
  --primary-glow: rgba(59, 130, 246, 0.28);
  --primary-gradient: linear-gradient(135deg, #60a5fa 0%, #38bdf8 60%, #a78bfa 100%);

  --accent: #38bdf8;
  --accent-hover: #7dd3fc;
  --accent-light: rgba(56, 189, 248, 0.14);

  --success: #10b981;
  --success-hover: #34d399;
  --success-light: rgba(16, 185, 129, 0.14);
  --success-border: rgba(16, 185, 129, 0.3);

  --warning: #f59e0b;
  --warning-hover: #fbbf24;
  --warning-light: rgba(245, 158, 11, 0.14);
  --warning-border: rgba(245, 158, 11, 0.3);

  --danger: #ef4444;
  --danger-hover: #f87171;
  --danger-light: rgba(239, 68, 68, 0.14);
  --danger-border: rgba(239, 68, 68, 0.3);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.7);
  --shadow-xl: 0 20px 32px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 0 1px rgba(59, 130, 246, 0.3), 0 8px 24px -4px rgba(59, 130, 246, 0.4);
}

/* --------------------------------------------------------------------------
   Base Reset & Typographic Hierarchy
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, svg, video, canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-hover);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* Container Alignments */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: var(--max-w-narrow);
}

.container-read {
  max-width: var(--max-w-read);
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   Sticky Glassmorphic Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="dark"] .site-header {
  background-color: rgba(17, 24, 39, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1.5rem;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo svg {
  width: 34px;
  height: 34px;
  color: var(--primary);
  filter: drop-shadow(0 2px 4px var(--primary-glow));
  transition: transform var(--transition-fast);
}

.brand-logo:hover svg {
  transform: rotate(-4deg) scale(1.05);
}

.brand-logo span span {
  color: var(--primary);
}

/* Desktop Navigation */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 0.35rem;
}

@media (min-width: 960px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-light);
  font-weight: 600;
}

/* Dropdown Menu */
.nav-dropdown {
  position: relative;
}

.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.dropdown-trigger svg {
  width: 13px;
  height: 13px;
  transition: transform 0.2s ease;
  color: var(--text-subtle);
}

.nav-dropdown:hover .dropdown-trigger svg,
.nav-dropdown.open .dropdown-trigger svg {
  transform: rotate(180deg);
  color: var(--primary);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl), 0 0 0 1px var(--border);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.98);
  transform-origin: top left;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  z-index: 1050;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(6px) scale(1);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.dropdown-item svg {
  width: 17px;
  height: 17px;
  color: var(--primary);
  flex-shrink: 0;
}

.dropdown-item:hover,
.dropdown-item.active {
  background-color: var(--primary-light);
  color: var(--primary);
  transform: translateX(2px);
}

/* Header Actions & Theme Toggle */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background-color: var(--bg-surface);
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.theme-toggle:hover {
  color: var(--text-main);
  border-color: var(--border-strong);
  background-color: var(--bg-subtle);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 19px;
  height: 19px;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  border: 1px solid var(--border);
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-xs);
  transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
  background-color: var(--bg-subtle);
}

@media (min-width: 960px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn svg {
  width: 22px;
  height: 22px;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  flex-direction: column;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem 1.5rem;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav.open {
  display: flex;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-link {
  padding: 0.8rem 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

.mobile-nav-group-title {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  font-weight: 700;
  margin-top: 1.15rem;
  margin-bottom: 0.35rem;
  padding-left: 0.5rem;
}

.mobile-sub-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.75rem;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.mobile-sub-link:hover,
.mobile-sub-link.active {
  background-color: var(--primary-light);
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   Hero Section - Clean Ambient Lighting
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding: 5rem 0 3.75rem;
  overflow: hidden;
  text-align: center;
}

.hero-blobs {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1200px;
  height: 550px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.blob {
  position: absolute;
  filter: blur(80px);
  border-radius: 50%;
  animation: floatBlobs 16s infinite alternate ease-in-out;
}

.blob-1 {
  top: 10%;
  left: 15%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(37,99,235,0.4) 0%, rgba(2,132,199,0.15) 100%);
}

.blob-2 {
  top: 20%;
  right: 15%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(99,102,241,0.35) 0%, rgba(168,85,247,0.15) 100%);
  animation-duration: 20s;
  animation-direction: alternate-reverse;
}

@keyframes floatBlobs {
  0% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(30px) scale(1.05); }
  100% { transform: translateY(-25px) scale(0.96); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.15rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-xs);
}

.hero-badge svg {
  width: 15px;
  height: 15px;
  color: var(--primary);
}

.hero-title {
  font-size: 2.4rem;
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.35rem;
  color: var(--text-main);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.35rem;
  }
}

.gradient-text {
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 45%, #0284c7 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #38bdf8 60%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.25rem;
  line-height: 1.65;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.75rem;
}

/* --------------------------------------------------------------------------
   Buttons & Interactive Elements
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.75rem 1.65rem;
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
  min-height: 48px;
  cursor: pointer;
  line-height: 1.2;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(180deg, var(--primary-hover) 0%, #1e3a8a 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 6px 18px var(--primary-glow);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-success {
  background: linear-gradient(180deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
  background: linear-gradient(180deg, #059669 0%, #047857 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 6px 18px rgba(16, 185, 129, 0.35);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: var(--danger-hover);
  color: #ffffff;
}

.btn-sm {
  padding: 0.45rem 0.95rem;
  font-size: 0.88rem;
  min-height: 38px;
}

.btn-block {
  width: 100%;
}

/* Quick Pick Strip */
.quick-picks {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.quick-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-subtle);
  margin-right: 0.35rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.42rem 0.95rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  box-shadow: var(--shadow-xs);
  transition: var(--transition-fast);
}

.chip:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   Sections & Layout
   -------------------------------------------------------------------------- */
.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.25rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 0.65rem;
  padding: 0.25rem 0.75rem;
  background-color: var(--primary-light);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 1.95rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.35rem;
  }
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Tool Cards & Bento Grids
   -------------------------------------------------------------------------- */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tools-grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .tools-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tools-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tool-card {
  position: relative;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.85rem 1.65rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--primary-rgb), 0.4);
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(var(--primary-rgb), 0.15);
}

.tool-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  transition: var(--transition);
}

.tool-card:hover .tool-icon-wrapper {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  border-color: transparent;
  transform: scale(1.05);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.tool-icon-wrapper svg {
  width: 26px;
  height: 26px;
}

.tool-badge {
  position: absolute;
  top: 1.35rem;
  right: 1.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--accent-light);
  color: var(--accent-hover);
  border: 1px solid rgba(var(--accent-rgb), 0.2);
}

.tool-title {
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.tool-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.35rem;
  flex-grow: 1;
}

.tool-action-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: auto;
}

.tool-action-link svg {
  width: 15px;
  height: 15px;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-action-link svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   Tool Application Container & Interactive Workbench
   -------------------------------------------------------------------------- */
.tool-app-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), 0 0 0 1px var(--border);
  padding: 1.75rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .tool-app-wrapper {
    padding: 2.75rem;
  }
}

/* Upload Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3.5rem 1.75rem;
  text-align: center;
  cursor: pointer;
  background-color: var(--bg-subtle);
  transition: var(--transition);
  position: relative;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  transform: scale(0.998);
}

.dropzone-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.35rem;
  color: var(--primary);
  opacity: 0.95;
  filter: drop-shadow(0 4px 8px var(--primary-glow));
  transition: transform var(--transition);
}

.dropzone:hover .dropzone-icon {
  transform: translateY(-4px);
}

.dropzone-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.dropzone-sub {
  font-size: 0.94rem;
  color: var(--text-muted);
  margin-bottom: 1.35rem;
}

.dropzone-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--success);
  background-color: var(--success-light);
  border: 1px solid var(--success-border);
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
}

.file-input-hidden {
  display: none;
}

/* Tool Workspace (when file is active) */
.tool-workspace {
  display: none;
  margin-top: 1.75rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
}

@media (min-width: 900px) {
  .workspace-grid {
    grid-template-columns: 1.15fr 1fr;
  }
}

.preview-pane {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  position: relative;
  overflow: hidden;
}

.preview-img-container {
  max-width: 100%;
  max-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: repeating-conic-gradient(#cbd5e1 0% 25%, #f1f5f9 0% 50%) 50% / 16px 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

[data-theme="dark"] .preview-img-container {
  background: repeating-conic-gradient(#1e293b 0% 25%, #0f172a 0% 50%) 50% / 16px 16px;
}

.preview-img-container img,
.preview-img-container canvas {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
}

.file-stats-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 1.15rem;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  color: var(--text-muted);
  gap: 0.75rem;
}

.stat-item strong {
  color: var(--text-main);
  font-weight: 700;
}

/* Control Options Pane */
.controls-pane {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.control-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.control-input,
.control-select {
  width: 100%;
  padding: 0.72rem 0.95rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-main);
  font-size: 0.92rem;
  transition: var(--transition-fast);
}

.control-input:focus,
.control-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: none;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.input-addon {
  font-size: 0.85rem;
  color: var(--text-subtle);
  white-space: nowrap;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
}

/* Alerts & Status Banners */
.alert {
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin: 1.15rem 0;
}

.alert svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-info {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid rgba(var(--primary-rgb), 0.25);
}

[data-theme="dark"] .alert-info {
  color: #93c5fd;
}

.alert-warning {
  background-color: var(--warning-light);
  color: #92400e;
  border: 1px solid var(--warning-border);
}

[data-theme="dark"] .alert-warning {
  color: #fde68a;
}

.alert-success {
  background-color: var(--success-light);
  color: #065f46;
  border: 1px solid var(--success-border);
}

[data-theme="dark"] .alert-success {
  color: #6ee7b7;
}

/* Progress Bar */
.progress-container {
  display: none;
  margin: 1.35rem 0;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

.progress-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.45rem;
  text-align: center;
}

/* Action Rows */
.action-row {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

@media (min-width: 600px) {
  .action-row {
    flex-direction: row;
  }
}

/* Items List (for Merge / Reorder) */
.items-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 1rem 0;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  box-shadow: var(--shadow-xs);
  transition: var(--transition-fast);
}

.item-row:hover {
  border-color: var(--primary);
  background-color: var(--bg-subtle);
}

.item-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow: hidden;
}

.item-info span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.item-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid var(--border);
  background-color: var(--bg-surface);
  transition: var(--transition-fast);
}

.btn-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.btn-icon-danger:hover {
  color: var(--danger);
  border-color: var(--danger);
  background-color: var(--danger-light);
}

/* PDF Page Grid (Rotate / Split / PDF to JPG) */
.pdf-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(135px, 1fr));
  gap: 1.15rem;
  margin: 1.5rem 0;
  max-height: 480px;
  overflow-y: auto;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: var(--bg-subtle);
}

.pdf-page-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.65rem;
  text-align: center;
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transition: var(--transition-fast);
}

.pdf-page-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.pdf-page-card.deleted {
  opacity: 0.35;
  filter: grayscale(1);
}

.pdf-page-thumb {
  width: 100%;
  height: 155px;
  object-fit: contain;
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.pdf-page-num {
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.45rem;
  color: var(--text-muted);
}

.pdf-page-controls {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.45rem;
}

/* Passport Photo Specific Sheet Layout */
.sheet-preview-container {
  margin-top: 1.25rem;
  padding: 1.25rem;
  background: #ffffff;
  color: #111827;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   AdSense Container (CLS-Free Clean Architecture)
   -------------------------------------------------------------------------- */
.ad-slot-wrapper {
  margin: 2.25rem auto;
  text-align: center;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ad-slot {
  width: 100%;
  max-width: 728px;
  min-height: 90px;
  background-color: var(--bg-subtle);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  color: var(--text-subtle);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ad-slot-incontent {
  min-height: 250px;
  max-width: 728px;
}

.ad-slot span {
  display: block;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Step Cards, Workflow & Features
   -------------------------------------------------------------------------- */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--primary-rgb), 0.3);
  box-shadow: var(--shadow-lg);
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  box-shadow: 0 4px 10px var(--primary-glow);
}

.step-title {
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.step-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Long-Form Editorial & Educational Articles
   -------------------------------------------------------------------------- */
.content-article {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.75rem 1.75rem;
  margin: 3.75rem auto;
  max-width: var(--max-w-read);
  box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
  .content-article {
    padding: 4rem 3.5rem;
  }
}

.content-article h2 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin: 2.5rem 0 1.15rem;
  color: var(--text-main);
  line-height: 1.3;
}

.content-article h2:first-of-type {
  margin-top: 0;
}

.content-article h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 2rem 0 0.85rem;
  color: var(--text-main);
}

.content-article p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 1.35rem;
}

.content-article ul,
.content-article ol {
  margin: 1.15rem 0 1.65rem 1.75rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 1.02rem;
}

.content-article li {
  margin-bottom: 0.6rem;
}

.content-article strong {
  color: var(--text-main);
  font-weight: 600;
}

/* Styled Data Tables */
.content-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}

.content-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  text-align: left;
}

.content-table th,
.content-table td {
  padding: 0.95rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.content-table th {
  background-color: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.content-table tr:last-child td {
  border-bottom: none;
}

.content-table tr:nth-child(even) td {
  background-color: var(--bg-alt);
}

/* --------------------------------------------------------------------------
   FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 820px;
  margin: 2.25rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 1.5rem;
}

.faq-item.open .faq-answer {
  max-height: 1200px;
  padding-bottom: 1.35rem;
  transition: max-height 0.3s ease-in-out;
}

.faq-answer p {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb-nav {
  margin: 1.75rem 0 1.25rem;
  font-size: 0.88rem;
  color: var(--text-subtle);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  list-style: none;
}

.breadcrumb-separator {
  color: var(--text-subtle);
  font-size: 0.8rem;
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Call To Action (CTA) Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0284c7 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 4rem 2.25rem;
  text-align: center;
  margin: 4.5rem 0;
  box-shadow: var(--shadow-xl), 0 12px 36px var(--primary-glow);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-title {
  font-size: 2.15rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1.15rem;
  color: #ffffff;
  position: relative;
  z-index: 1;
}

.cta-desc {
  font-size: 1.12rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 620px;
  margin: 0 auto 2.25rem;
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-secondary {
  background-color: #ffffff;
  color: #1e3a8a;
  border: none;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-secondary:hover {
  background-color: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

/* --------------------------------------------------------------------------
   Footer & Trust Badges
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  margin-top: auto;
  padding: 4.5rem 0 2.25rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.75rem;
  margin-bottom: 3.75rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1.2fr 1.2fr 1.5fr;
  }
}

.footer-col-brand p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-top: 1.15rem;
  margin-bottom: 1.35rem;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.95rem;
  background-color: var(--success-light);
  color: #065f46;
  border: 1px solid var(--success-border);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
}

[data-theme="dark"] .privacy-badge {
  color: #34d399;
}

.footer-heading {
  font-size: 0.94rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-main);
  margin-bottom: 1.35rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(3px);
}

/* Social Links with Brand Glow Effects */
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.15rem;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
}

.social-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: fill 0.2s ease;
}

.social-icon:hover {
  transform: translateY(-4px) scale(1.12);
  color: #ffffff;
}

.social-facebook:hover {
  background-color: #1877F2;
  border-color: #1877F2;
  box-shadow: 0 6px 16px rgba(24, 119, 242, 0.45);
}

.social-x:hover {
  background-color: #000000;
  border-color: #000000;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .social-x:hover {
  background-color: #ffffff;
  border-color: #ffffff;
  color: #000000;
  box-shadow: 0 6px 16px rgba(255, 255, 255, 0.45);
}

.social-instagram:hover {
  background: linear-gradient(45deg, #F58529, #DD2A7B, #8134AF);
  border-color: #DD2A7B;
  box-shadow: 0 6px 16px rgba(221, 42, 123, 0.45);
}

.social-youtube:hover {
  background-color: #FF0000;
  border-color: #FF0000;
  box-shadow: 0 6px 16px rgba(255, 0, 0, 0.45);
}

.social-linkedin:hover {
  background-color: #0A66C2;
  border-color: #0A66C2;
  box-shadow: 0 6px 16px rgba(10, 102, 194, 0.45);
}

.social-pinterest:hover {
  background-color: #E60023;
  border-color: #E60023;
  box-shadow: 0 6px 16px rgba(230, 0, 35, 0.45);
}

.social-whatsapp:hover {
  background-color: #25D366;
  border-color: #25D366;
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.45);
}

.social-telegram:hover {
  background-color: #26A5E4;
  border-color: #26A5E4;
  box-shadow: 0 6px 16px rgba(38, 165, 228, 0.45);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.15rem;
  font-size: 0.86rem;
  color: var(--text-subtle);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   Cookie Consent Banner
   -------------------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 1.75rem;
  left: 1.75rem;
  right: 1.75rem;
  max-width: 540px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.45rem 1.75rem;
  box-shadow: var(--shadow-xl), 0 0 0 1px var(--border);
  z-index: 9999;
  display: none;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { transform: translateY(80px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.cookie-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.15rem;
}

.cookie-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* --------------------------------------------------------------------------
   Forms & Contact Card
   -------------------------------------------------------------------------- */
.contact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.75rem 2rem;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
  max-width: var(--max-w-read);
  margin-left: auto;
  margin-right: auto;
}

.form-group {
  margin-bottom: 1.65rem;
}

.form-label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1.15rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* Scroll reveal animations */
.reveal-fade {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-fade {
    opacity: 1 !important;
    transform: none !important;
  }
}


/* --------------------------------------------------------------------------
   Auxiliary Components, Grids & Interactive Utility Classes
   -------------------------------------------------------------------------- */
.file-browse-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.85rem;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.98rem;
  border-radius: var(--radius-md);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 4px 14px var(--primary-glow);
  margin-top: 1.25rem;
  transition: var(--transition);
  pointer-events: none;
}

.dropzone:hover .file-browse-btn {
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 6px 20px var(--primary-glow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.25);
}

.badge-success {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.35rem;
}

@media (min-width: 600px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.quick-scale-btn {
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  min-height: 32px;
}

.stats-summary-box {
  margin-top: 1.25rem;
  padding: 1.15rem 1.35rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stats-summary-box p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.stats-summary-box strong {
  color: var(--text-main);
  font-weight: 700;
}

/* Features Grid (About & Informational Pages) */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.65rem;
  margin: 2.75rem 0;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.15rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--primary-rgb), 0.35);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  transform: scale(1.05);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.feature-card p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Card & Page Utility Grids */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.page-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .page-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.field-error {
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 0.35rem;
  font-weight: 500;
}

.tool-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.related-tools-section,
.steps-section,
.faq-section {
  margin: 4.5rem 0;
}

.steps-title,
.faq-title {
  font-size: 1.95rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  text-align: center;
  margin-bottom: 1rem;
}


/* Native Details/Summary FAQ Accordion Support */
details.faq-item summary {
  list-style: none;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

details.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

details.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
}

details.faq-item .faq-answer {
  padding: 0.25rem 1.5rem 1.35rem;
}

.faq-accordion {
  max-width: 820px;
  margin: 2.25rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}


/* --------------------------------------------------------------------------
   Heading Hierarchy (H5, H6) & Footer Security Metadata
   -------------------------------------------------------------------------- */
h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

h6 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.75rem;
  margin-bottom: 0.35rem;
}

.footer-bottom-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-security-note {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.footer-subheading {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0;
}

.footer-badge {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-subtle);
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
}