/* ==========================================================================
   XESTUS OMNITOOLS - CORE DESIGN SYSTEM & STYLESHEET
   Engineered with modern CSS custom properties, glassmorphism, responsive grid,
   and dark/light mode accessibility (WCAG AAA compliant).
   ========================================================================== */

/* Fonts loaded efficiently via preconnected link tags in HTML for 100/100 Lighthouse score */

:root {
  /* Color Palette - Dark Mode (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-surface: #1e293b;
  --bg-surface-elevated: #283548;
  --bg-glass: rgba(15, 23, 42, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(99, 102, 241, 0.4);
  --border-color-focus: #6366f1;

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #818cf8;

  /* Brand Accents */
  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #06b6d4 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.1) 100%);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --info: #0ea5e9;

  /* Shadow & Glow */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.6);
  --glow-primary: 0 0 30px rgba(99, 102, 241, 0.25);
  --glow-accent: 0 0 40px rgba(168, 85, 247, 0.2);

  /* Geometry & Animations */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 72px;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-surface: #f1f5f9;
  --bg-surface-elevated: #e2e8f0;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-color: rgba(15, 23, 42, 0.08);
  --border-color-hover: rgba(99, 102, 241, 0.45);
  --border-color-focus: #4f46e5;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-accent: #4f46e5;

  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 35px rgba(15, 23, 42, 0.12);
  --glow-primary: 0 0 25px rgba(99, 102, 241, 0.15);
}

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

html {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(168, 85, 247, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  line-height: 1.65;
  color: var(--text-secondary);
}

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

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

code, pre, kbd {
  font-family: 'JetBrains Mono', monospace;
}

/* Container */
.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  cursor: pointer;
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
  transition: transform var(--transition-fast);
}

.brand-wrapper:hover .brand-logo-icon {
  transform: rotate(5deg) scale(1.05);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.brand-subtitle {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Global Search Trigger */
.search-trigger-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 240px;
}

.search-trigger-btn:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.search-trigger-btn kbd {
  margin-left: auto;
  font-size: 0.7rem;
  padding: 0.2rem 0.45rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-muted);
}

/* Nav Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-link-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-link-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--accent-primary);
  border-color: var(--border-color-hover);
  background: var(--bg-surface-elevated);
}

.badge-xestus {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  background: var(--accent-gradient-subtle);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   ANNOUNCEMENT / PRIVACY GUARANTEE BANNER
   ========================================================================== */
.top-notice-bar {
  background: linear-gradient(90deg, #1e1b4b 0%, #0f172a 50%, #164e63 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
  text-align: center;
  color: #c7d2fe;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
}

.top-notice-bar a {
  color: #38bdf8;
  font-weight: 600;
  text-decoration: underline;
}

.top-notice-bar .dot-pulse {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 4.5rem 0 3rem;
  text-align: center;
  position: relative;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.hero-pill-badge span.pulse-tag {
  color: var(--accent-primary);
  font-weight: 700;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 auto 2.5rem;
  color: var(--text-secondary);
}

/* Hero Feature Badges */
.hero-features-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
}

.hero-feature-item svg {
  color: var(--success);
}

/* ==========================================================================
   CATEGORY NAVIGATION & SEARCH
   ========================================================================== */
.controls-bar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.category-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.35rem 0.25rem;
  scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
  display: none;
}

.category-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-tab-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.category-tab-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.filter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  max-width: 480px;
}

.search-input-wrapper input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: all var(--transition-fast);
}

.search-input-wrapper input:focus {
  border-color: var(--border-color-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: var(--bg-surface-elevated);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.tools-count-badge {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ==========================================================================
   TOOL CARDS GRID
   ========================================================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.tool-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  cursor: pointer;
  text-decoration: none;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
  background: var(--bg-surface-elevated);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.tool-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient-subtle);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--accent-primary);
  font-size: 1.5rem;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-icon-box {
  transform: scale(1.08);
}

.tool-badge-pill {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.tool-badge-pill.popular {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

.tool-badge-pill.new {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.tool-badge-pill.security {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
  color: #38bdf8;
}

.tool-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tool-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.tool-desc {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-accent);
}

.tool-card-footer .cta-arrow {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: transform var(--transition-fast);
}

.tool-card:hover .cta-arrow {
  transform: translateX(4px);
}

.fav-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.fav-btn:hover {
  color: #f59e0b;
}

.fav-btn.active {
  color: #f59e0b;
}

/* ==========================================================================
   TOOL WORKSPACE VIEW (WHEN A TOOL IS OPENED)
   ========================================================================== */
.tool-view-section {
  display: none;
  padding: 2rem 0 5rem;
}

.tool-view-section.active {
  display: block;
}

.tool-view-header {
  margin-bottom: 2rem;
}

.tool-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.tool-breadcrumbs a {
  color: var(--text-secondary);
  cursor: pointer;
}

.tool-breadcrumbs a:hover {
  color: var(--accent-primary);
}

.tool-view-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.tool-main-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-meta-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-sm);
  background: var(--accent-primary);
  border: 1px solid transparent;
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.45);
}

/* Tool Interactive Container */
.tool-interactive-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 3.5rem;
}

/* Drag & Drop Upload Zone */
.dropzone {
  border: 2px dashed rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  background: rgba(99, 102, 241, 0.03);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.08);
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.15);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-gradient-subtle);
  color: var(--accent-primary);
  font-size: 2rem;
}

.dropzone-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dropzone-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   EDITORIAL & SEO EXPLANATION CONTENT (ADSENSE OPTIMIZED)
   ========================================================================== */
.tool-editorial-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin-top: 3rem;
}

.editorial-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.editorial-header h2 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.editorial-section {
  margin-bottom: 2.5rem;
}

.editorial-section h3 {
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.editorial-section p {
  margin-bottom: 1rem;
}

.editorial-steps-list {
  list-style: none;
  counter-reset: step-counter;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.editorial-steps-list li {
  counter-increment: step-counter;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
}

.editorial-steps-list li::before {
  content: counter(step-counter);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

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

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

.faq-trigger {
  width: 100%;
  text-align: left;
  padding: 1.2rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-content {
  padding: 0 1.5rem 1.2rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  display: none;
}

.faq-item.open .faq-content {
  display: block;
}

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

.faq-icon {
  transition: transform var(--transition-fast);
  color: var(--text-muted);
}

/* ==========================================================================
   MODALS (ABOUT XESTUS, COMMAND PALETTE, LEGAL)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-box {
  transform: scale(1);
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.modal-body {
  padding: 2rem;
}

/* Command Palette Specific */
.cmd-search-input {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  font-size: 1.15rem;
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
}

.cmd-results-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 0.75rem;
  list-style: none;
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cmd-item:hover, .cmd-item.selected {
  background: var(--accent-gradient-subtle);
  color: var(--accent-primary);
}

.cmd-item-icon {
  font-size: 1.2rem;
}

.cmd-item-title {
  font-weight: 600;
  color: var(--text-primary);
}

.cmd-item-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* ==========================================================================
   COOKIE CONSENT BANNER (ADSENSE & GDPR COMPLIANT)
   ========================================================================== */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color-hover);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg), var(--glow-primary);
  z-index: 150;
  display: none;
  animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-banner.visible {
  display: block;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.cookie-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 250;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  animation: toastIn 0.25s ease-out;
}

@keyframes toastIn {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand-desc {
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 380px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links-list a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--text-primary);
}

.footer-bottom-bar {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-bar .company-credit {
  font-weight: 600;
  color: var(--text-secondary);
}

.footer-bottom-bar .company-credit strong {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   MULTI-DEVICE RESPONSIVE DESIGN & ACCESSIBILITY SYSTEM (LIGHTHOUSE 100/100)
   ========================================================================== */

/* Prevent horizontal overflow on small mobile viewports */
html, body {
  max-width: 100vw;
  overflow-x: hidden;
}

/* Accessible Keyboard Navigation */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

/* Category Tabs Smooth Horizontal Swipe on Touch Devices */
.category-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 0.4rem;
  max-width: 100%;
}

.category-tabs::-webkit-scrollbar {
  display: none;
}

.category-tab-btn {
  flex-shrink: 0;
  white-space: nowrap;
}

/* Tablets & Small Laptops (max-width: 992px) */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .search-trigger-btn {
    min-width: auto;
  }
  .hero-features-bar {
    justify-content: center;
  }
}

/* Tablets & Phablets (max-width: 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .site-header {
    padding: 0 0.5rem;
  }

  .brand-subtitle {
    display: none;
  }

  .header-actions .badge-xestus,
  .nav-link-btn {
    display: none !important;
  }

  .search-trigger-btn span,
  .search-trigger-btn kbd {
    display: none !important;
  }

  .search-trigger-btn {
    padding: 0.5rem;
    min-width: 40px;
    width: 40px;
    height: 40px;
    justify-content: center;
    border-radius: var(--radius-pill);
  }

  .header-actions {
    gap: 0.5rem;
  }

  .theme-toggle-btn {
    width: 40px;
    height: 40px;
    min-width: 40px;
  }

  .top-notice-bar {
    font-size: 0.78rem;
    padding: 0.4rem 0.75rem;
    line-height: 1.4;
  }

  /* Prevent iOS Safari 16px auto-zoom glitch */
  input[type="text"],
  input[type="number"],
  input[type="email"],
  input[type="password"],
  select,
  textarea {
    font-size: 16px !important;
  }

  .tool-view-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .tool-meta-actions {
    width: 100%;
  }

  .tool-meta-actions button {
    width: 100%;
  }

  .tool-grid-2col,
  .tool-grid-3col {
    grid-template-columns: 1fr !important;
  }

  .modal-box {
    margin: 1rem;
    max-height: 90vh;
    overflow-y: auto;
  }
}

/* Compact Mobile Screens (iPhone SE, Galaxy, Pixel: max-width: 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-features-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .hero-feature-item {
    justify-content: center;
  }

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

  .header-actions .badge-xestus,
  .nav-link-btn {
    display: none;
  }

  .search-trigger-btn span,
  .search-trigger-btn kbd {
    display: none;
  }

  .search-trigger-btn {
    padding: 0.5rem;
    border-radius: var(--radius-pill);
  }

  .nav-feedback-btn .feedback-btn-text {
    display: none;
  }

  .nav-feedback-btn {
    padding: 0.4rem 0.65rem;
  }

  .brand-title {
    font-size: 1.05rem;
  }

  .tool-interactive-card {
    padding: 1rem;
    border-radius: var(--radius-lg);
  }

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

  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .controls-bar {
    gap: 1rem;
  }

  .cookie-banner {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    padding: 1.25rem;
  }

  .cookie-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-actions a {
    text-align: center;
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

/* ==========================================================================
   ULTRA-PREMIUM VIRAL ADDITIONS (XESTUS OMNITOOLS V2)
   ========================================================================== */

/* Header Sound & Install Buttons */
.sound-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sound-toggle-btn:hover {
  border-color: var(--accent-primary);
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}

.pwa-install-header-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(168, 85, 247, 0.2) 100%);
  border: 1px solid rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-pill);
  color: #c7d2fe;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.pwa-install-header-btn:hover {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

/* Privacy Shield Live Stats Bar in Hero */
.hero-live-shield {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.6rem 1.4rem;
  margin-top: 1.25rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  color: #6ee7b7;
  backdrop-filter: blur(8px);
}

.hero-live-shield span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.shield-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Hero Instant Interactive Speed Dock */
.hero-instant-dock {
  margin: 2.5rem auto 1rem;
  max-width: 780px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.5), 0 0 30px rgba(99, 102, 241, 0.12);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.hero-instant-dock::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
}

.dock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dock-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dock-tabs {
  display: flex;
  gap: 0.4rem;
  background: var(--bg-primary);
  padding: 0.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
}

.dock-tab-btn {
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dock-tab-btn.active {
  background: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.dock-panel {
  display: none;
}

.dock-panel.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

.dock-quick-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dock-quick-input {
  flex: 1;
  min-width: 220px;
  padding: 0.75rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  outline: none;
}

.dock-quick-input:focus {
  border-color: var(--accent-primary);
}

/* Unfair Advantage Comparison Section */
.comparison-section {
  padding: 5rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.comparison-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.comparison-table-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--bg-surface-elevated);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.comparison-table th.highlight-col {
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0.08) 100%);
  color: #ffffff;
  border-left: 2px solid var(--accent-primary);
  border-right: 2px solid var(--accent-primary);
}

.comparison-table td.highlight-col {
  background: rgba(99, 102, 241, 0.05);
  border-left: 2px solid var(--accent-primary);
  border-right: 2px solid var(--accent-primary);
  font-weight: 600;
  color: var(--text-primary);
}

.check-green {
  color: #10b981;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.cross-red {
  color: #ef4444;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  opacity: 0.85;
}

/* Card Mouse Spotlight Hover Glow */
.tool-card {
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: var(--mouse-y, -1000px);
  left: var(--mouse-x, -1000px);
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.tool-card:hover::before {
  opacity: 1;
}

/* ==========================================================================
   NEXT-LEVEL SEO, MONETIZATION & VIRAL GROWTH MODULES
   ========================================================================== */

/* Mobile Table & Card Responsiveness */
.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  min-width: 620px;
}

/* Google AdSense Ready Placement Slots */
.adsense-slot-container {
  margin: 3rem auto;
  max-width: 970px;
  min-height: 100px;
  background: rgba(15, 23, 42, 0.4);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  text-align: center;
  position: relative;
}

.ad-badge-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.ad-placeholder-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* FAQ Accordion Section (AdSense & SEO Rich Snippets) */
.faq-section {
  padding: 5rem 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.faq-header {
  text-align: center;
  margin-bottom: 3rem;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

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

.faq-question {
  width: 100%;
  padding: 1.35rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--accent-primary);
  transition: transform var(--transition-normal);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 1.75rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  max-height: 350px;
  padding-bottom: 1.5rem;
}

/* Viral Social Share Bar (WhatsApp, Twitter, LinkedIn, Copy) */
.viral-share-section {
  text-align: center;
  padding: 3.5rem 1.5rem;
  margin: 2rem auto;
  max-width: 780px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(168, 85, 247, 0.06) 100%);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.viral-share-btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.share-btn-whatsapp {
  background: #25D366;
}

.share-btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

.share-btn-x {
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.share-btn-x:hover {
  background: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.15);
}

.share-btn-linkedin {
  background: #0077b5;
}

.share-btn-linkedin:hover {
  background: #006097;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 119, 181, 0.4);
}

.share-btn-copy {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.share-btn-copy:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Mobile Responsiveness Fine-Tuning (< 640px) */
@media (max-width: 640px) {
  .hero-instant-dock {
    padding: 1.15rem;
    margin: 1.5rem 0.5rem;
  }

  .dock-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .dock-tabs {
    width: 100%;
    justify-content: space-between;
  }

  .dock-tab-btn {
    flex: 1;
    text-align: center;
    padding: 0.35rem 0.5rem;
    font-size: 0.78rem;
  }

  .dock-quick-row {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-live-shield {
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.78rem;
    padding: 0.6rem 1rem;
  }

  .faq-question {
    padding: 1.15rem 1.25rem;
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 1.25rem;
  }

  .viral-share-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .share-btn {
    justify-content: center;
  }

  .header-actions .badge-xestus {
    display: none;
  }
}