/* ==========================================================================
   HUZIKIT META TAG GENERATOR — PRODUCTION STYLESHEET
   Mobile-First, Zero Horizontal Overflow, 100% Responsive Architecture
   Colors: Huzikit Palette | Typography: Lexend (headings) & Inter (body)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties & Huzikit Theme Variables
   -------------------------------------------------------------------------- */
:root {
  --ink: #15132b;
  --ink-soft: #4d4a6b;
  --ink-faint: #8985a8;
  --bg: #fcfbff;
  --bg-soft: #f4f2ff;
  --line: #e7e4f6;
  --line-soft: #f0eefb;
  --primary: #4f46e5;
  --primary-dark: #3b33c4;
  --primary-light: #eeebff;
  --accent: #7c3aed;
  --white: #ffffff;

  /* Semantic UI variables */
  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --shadow-sm: 0 1px 3px rgba(21, 19, 43, 0.05);
  --shadow-md: 0 4px 16px -2px rgba(21, 19, 43, 0.08);
  --shadow-lg: 0 12px 32px -4px rgba(21, 19, 43, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 240ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 68px;
}

/* --------------------------------------------------------------------------
   2. Reset & Strict Responsive Foundation (Zero Overflow)
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  width: 100%;
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background-color: var(--bg);
  color: var(--ink);
}

body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--bg);
  display: flex;
  flex-direction: column;
}

/* Body lock when mobile drawer is open */
body.nav-locked {
  position: fixed;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6,
.font-heading {
  font-family:
    "Lexend",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  color: var(--ink);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* --------------------------------------------------------------------------
   4. Layout Containers
   -------------------------------------------------------------------------- */
.site-container {
  width: min(100% - 32px, 1200px);
  margin-inline: auto;
  min-width: 0;
  max-width: 100%;
}

.main-content {
  flex: 1 0 auto;
  min-width: 0;
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. Site Header & Navigation (Sticky, Accessible, Layered)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 12px;
}

/* Logo */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Lexend", sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.25);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
}

/* Header Right Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Search Trigger Button */
.search-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 9999px;
  color: var(--ink-soft);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.search-trigger-btn:hover,
.search-trigger-btn:focus-visible {
  border-color: var(--primary);
  background-color: var(--white);
  color: var(--primary);
  outline: 2px solid var(--primary-light);
}

.search-trigger-btn svg {
  width: 16px;
  height: 16px;
  color: var(--ink-faint);
}

.search-key-hint {
  display: none;
  padding: 2px 6px;
  font-size: 0.72rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-faint);
  font-weight: 600;
  margin-left: 4px;
}

@media (min-width: 992px) {
  .search-key-hint {
    display: inline-block;
  }
}

/* Mobile Hamburger Button (Real button, Accessible, Clear Hitbox) */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
  flex-shrink: 0;
  position: relative;
  z-index: 1200;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  background-color: var(--primary-light);
  border-color: var(--primary);
  outline: 2px solid var(--primary);
}

.hamburger-box {
  position: relative;
  width: 22px;
  height: 16px;
  display: block;
}

.hamburger-bar {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  transition:
    transform var(--transition-base),
    opacity var(--transition-fast),
    background-color var(--transition-fast);
}

.hamburger-bar:nth-child(1) {
  top: 0;
}

.hamburger-bar:nth-child(2) {
  top: 7px;
}

.hamburger-bar:nth-child(3) {
  top: 14px;
}

/* Animated Hamburger to X when open */
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   6. Desktop Navigation (Hidden on Mobile, Display on >=992px)
   -------------------------------------------------------------------------- */
.desktop-nav {
  display: none;
}

@media (min-width: 992px) {
  .menu-toggle {
    display: none;
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .desktop-nav-list {
    display: flex;
    align-items: center;
    gap: 2px;
  }

  .desktop-nav-item {
    position: relative;
  }

  .desktop-nav-link,
  .desktop-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--ink-soft);
    transition: all var(--transition-fast);
    white-space: nowrap;
  }

  .desktop-nav-link:hover,
  .desktop-dropdown-trigger:hover,
  .desktop-dropdown-trigger[aria-expanded="true"],
  .desktop-nav-link.active {
    color: var(--primary);
    background-color: var(--bg-soft);
  }

  .desktop-dropdown-trigger svg.chevron-icon {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
  }

  .desktop-dropdown-trigger[aria-expanded="true"] svg.chevron-icon {
    transform: rotate(180deg);
  }

  /* Dropdown Menu */
  .desktop-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 250px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    margin-top: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition:
      opacity var(--transition-fast),
      transform var(--transition-fast),
      visibility var(--transition-fast);
    pointer-events: none;
    z-index: 1050;
  }

  .desktop-nav-item:hover .desktop-dropdown-menu,
  .desktop-nav-item:focus-within .desktop-dropdown-menu,
  .desktop-dropdown-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .desktop-dropdown-item a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--ink-soft);
    transition: all var(--transition-fast);
  }

  .desktop-dropdown-item a:hover,
  .desktop-dropdown-item a:focus-visible {
    background-color: var(--primary-light);
    color: var(--primary);
  }

  .desktop-dropdown-item a.current-page {
    background-color: var(--bg-soft);
    color: var(--primary);
    font-weight: 600;
  }
}

/* --------------------------------------------------------------------------
   7. Mobile Navigation Drawer & Backdrop (Real State, Scrollable, Accordions)
   -------------------------------------------------------------------------- */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(21, 19, 43, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1090;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
  pointer-events: none;
}

.mobile-nav-backdrop.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-navigation {
  position: fixed;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  width: min(100%, 360px);
  background-color: var(--white);
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 24px rgba(21, 19, 43, 0.08);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  visibility: hidden;
  pointer-events: none;
  overflow: hidden;
}

.mobile-navigation.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.mobile-nav-inner {
  flex: 1 1 auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Mobile Category Accordion */
.mobile-category-item {
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 4px;
}

.mobile-category-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 10px;
  font-family: "Lexend", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  border-radius: var(--radius-sm);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.mobile-category-btn:hover,
.mobile-category-btn:focus-visible {
  background-color: var(--bg-soft);
  color: var(--primary);
}

.mobile-category-btn .category-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-category-btn .category-badge {
  font-size: 0.72rem;
  padding: 2px 7px;
  background-color: var(--bg-soft);
  color: var(--ink-faint);
  border-radius: 999px;
  font-weight: 500;
}

.mobile-category-btn svg.chevron-arrow {
  width: 18px;
  height: 18px;
  color: var(--ink-faint);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.mobile-category-btn[aria-expanded="true"] svg.chevron-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

/* Sub-list of tools inside accordion */
.mobile-tool-sublist {
  display: none;
  padding: 4px 8px 12px 28px;
  flex-direction: column;
  gap: 2px;
}

.mobile-tool-sublist.is-expanded {
  display: flex;
}

.mobile-tool-sublist a {
  display: block;
  padding: 8px 10px;
  font-size: 0.875rem;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  word-break: break-word;
}

.mobile-tool-sublist a:hover,
.mobile-tool-sublist a:focus-visible {
  background-color: var(--primary-light);
  color: var(--primary);
}

.mobile-tool-sublist a.current-page {
  background-color: var(--bg-soft);
  color: var(--primary);
  font-weight: 600;
}

/* Standalone items (Blog, About) in mobile drawer */
.mobile-direct-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 10px;
  font-family: "Lexend", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  border-radius: var(--radius-sm);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.mobile-direct-link:hover,
.mobile-direct-link:focus-visible {
  background-color: var(--bg-soft);
  color: var(--primary);
}

.mobile-nav-footer {
  padding: 14px 16px;
  background-color: var(--bg-soft);
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-align: center;
}

/* --------------------------------------------------------------------------
   8. Global Search Modal (Responsive, Accessible, Real <a> links)
   -------------------------------------------------------------------------- */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(21, 19, 43, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1300;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast);
}

.search-modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.search-dialog {
  width: 100%;
  max-width: 580px;
  margin-top: 8vh;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-height: 80vh;
}

.search-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background-color: var(--white);
}

.search-header svg.search-icon {
  width: 20px;
  height: 20px;
  color: var(--ink-faint);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  color: var(--ink);
  background: transparent;
  min-width: 0;
}

.search-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--ink-faint);
  background: var(--bg-soft);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.search-close-btn:hover {
  color: var(--ink);
  background: var(--line);
}

.search-results-list {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 10px;
  max-height: 380px;
}

.search-result-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--ink);
  transition: background-color var(--transition-fast);
}

.search-result-link:hover,
.search-result-link:focus-visible,
.search-result-link.selected {
  background-color: var(--primary-light);
  color: var(--primary);
  outline: none;
}

.search-result-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.search-result-title {
  font-weight: 600;
  font-size: 0.925rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-result-category {
  font-size: 0.75rem;
  color: var(--ink-faint);
}

.search-empty-state {
  padding: 32px 16px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.search-footer {
  padding: 10px 16px;
  background-color: var(--bg-soft);
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   9. Hero Section (Contained, Responsive 3D Visual, Zero Overflow)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding: 36px 0 24px;
  background:
    radial-gradient(
      circle at 80% 20%,
      var(--primary-light) 0%,
      transparent 60%
    ),
    radial-gradient(circle at 10% 80%, var(--bg-soft) 0%, transparent 70%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-section {
    padding: 48px 0 36px;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 36px;
  }
}

.hero-content {
  min-width: 0;
}

.hero-badge-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid rgba(79, 70, 229, 0.15);
  white-space: nowrap;
}

.hero-pill-status {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--success);
}

.hero-title {
  font-size: clamp(1.8rem, 4vw + 0.8rem, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}

.hero-title .gradient-text {
  color: var(--primary);
}

.hero-description {
  font-size: clamp(0.95rem, 1.2vw + 0.6rem, 1.1rem);
  color: var(--ink-soft);
  max-width: 58ch;
  margin-bottom: 20px;
  line-height: 1.6;
}

.hero-stats-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.hero-stat-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-stat-item svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

/* Interactive 3D Visual Box (Pure CSS 3D + Vanilla JS tilt) */
.hero-visual-wrapper {
  perspective: 1000px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
  max-width: 100%;
}

.hero-3d-card {
  width: 100%;
  max-width: 380px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-lg);
  transform-style: preserve-3d;
  transition: transform 0.2s ease-out;
  position: relative;
}

.card-layer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: #ff5f56;
}
.dot-yellow {
  background: #ffbd2e;
}
.dot-green {
  background: #27c93f;
}

.layer-tag-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--primary);
  font-family: monospace;
}

.code-simulation {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--ink-soft);
  background: var(--bg-soft);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.sim-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sim-kw {
  color: var(--accent);
  font-weight: 600;
}
.sim-attr {
  color: var(--primary);
}
.sim-val {
  color: #0d9488;
}

.preview-pill-overlay {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-dark);
}

/* --------------------------------------------------------------------------
   10. Meta Tag Workspace (Inputs Column vs Preview/Output Column)
   -------------------------------------------------------------------------- */
.workspace-section {
  padding: 28px 0 48px;
}

.workspace-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.workspace-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 40px;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--primary-dark);
}

.btn-outline {
  background-color: var(--white);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--primary);
  color: var(--primary);
  background-color: var(--primary-light);
}

.btn-secondary {
  background-color: var(--bg-soft);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--white);
  color: var(--ink);
  border-color: var(--ink-faint);
}

.btn-danger-outline {
  background-color: var(--white);
  border: 1px solid var(--line);
  color: var(--danger);
}

.btn-danger-outline:hover {
  background-color: var(--danger-bg);
  border-color: var(--danger);
}

/* Workspace Grid: Mobile Stacks (1 col), Desktop 2 col (min-width: 1024px) */
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

@media (min-width: 1024px) {
  .workspace-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 28px;
  }
}

/* Left Column: Form Controls & Tabs */
.tool-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

/* Category Tab Selector */
.form-tabs-header {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 4px 6px;
  gap: 4px;
}

.form-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.form-tab-btn svg {
  width: 15px;
  height: 15px;
}

.form-tab-btn:hover {
  color: var(--primary);
  background-color: var(--white);
}

.form-tab-btn.active {
  background-color: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Presets bar */
.preset-selector-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 16px;
  background-color: var(--white);
  border-bottom: 1px solid var(--line);
}

.preset-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.preset-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-chip {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  background-color: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* Form Tab Content Panels */
.tab-panel {
  display: none;
  padding: 18px 16px;
}

.tab-panel.active {
  display: block;
}

@media (min-width: 640px) {
  .tab-panel {
    padding: 22px 20px;
  }
}

/* Form Groups & Controls (Safe Responsive Math) */
.form-group-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .form-group-grid.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.form-control-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.char-counter {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-faint);
  font-family: monospace;
}

.char-counter.good {
  color: var(--success);
}

.char-counter.warning {
  color: var(--warning);
}

.char-counter.over {
  color: var(--danger);
}

.text-input,
.select-input,
.textarea-input {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 9px 12px;
  background-color: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--ink);
  transition: all var(--transition-fast);
}

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

.textarea-input {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

.helper-text {
  font-size: 0.75rem;
  color: var(--ink-faint);
  line-height: 1.4;
}

/* Color Picker Input Group */
.color-picker-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-input-swatch {
  width: 38px;
  height: 38px;
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--white);
  cursor: pointer;
  flex-shrink: 0;
}

/* Quick Action Toolbar inside Form */
.form-quick-tools {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   11. Right Column: Previews & Code Output
   -------------------------------------------------------------------------- */
.workspace-right-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
  max-width: 100%;
}

/* SEO Health / Quality Meter Card */
.health-meter-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.health-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.health-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.health-score-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--success-bg);
  color: var(--success);
}

.health-bar-track {
  width: 100%;
  height: 8px;
  background-color: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 12px;
}

.health-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--warning) 0%, var(--success) 100%);
  width: 85%;
  border-radius: 999px;
  transition: width 0.3s ease;
}

.health-checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  font-size: 0.78rem;
}

@media (min-width: 480px) {
  .health-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.health-check-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-soft);
}

.health-check-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.health-check-item.pass svg {
  color: var(--success);
}
.health-check-item.fail svg {
  color: var(--danger);
}

/* Live Preview Card & Device Tabs */
.preview-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

.preview-tabs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 6px 12px;
  flex-wrap: wrap;
  gap: 6px;
}

.preview-tab-list {
  display: flex;
  gap: 4px;
}

.preview-tab-btn {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

.preview-tab-btn:hover {
  color: var(--primary);
}

.preview-tab-btn.active {
  background-color: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.preview-body {
  padding: 16px;
  background-color: #f8f9fa;
}

/* 1. Google SERP Preview */
.google-serp-preview {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-sm);
  padding: 14px;
  max-width: 100%;
  font-family: Arial, sans-serif;
  overflow: hidden;
}

.serp-url-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.serp-favicon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--primary);
  flex-shrink: 0;
}

.serp-source {
  font-size: 0.8rem;
  color: #202124;
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.serp-path {
  font-size: 0.72rem;
  color: #4d5156;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.serp-title {
  font-size: 1.15rem;
  color: #1a0dab;
  line-height: 1.3;
  margin-bottom: 4px;
  font-weight: 400;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

.serp-title:hover {
  text-decoration: underline;
}

.serp-desc {
  font-size: 0.875rem;
  color: #4d5156;
  line-height: 1.45;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

/* 2. Facebook / Open Graph Preview Card */
.og-facebook-preview {
  background: #ffffff;
  border: 1px solid #ced0d4;
  border-radius: 8px;
  overflow: hidden;
  max-width: 100%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.og-image-container {
  width: 100%;
  height: 180px;
  background: #e4e6eb;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .og-image-container {
    height: 210px;
  }
}

.og-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.og-placeholder {
  color: var(--ink-faint);
  font-size: 0.85rem;
  text-align: center;
  padding: 12px;
}

.og-content-box {
  padding: 12px;
  background: #f0f2f5;
  border-top: 1px solid #ced0d4;
}

.og-domain {
  font-size: 0.72rem;
  color: #65676b;
  text-transform: uppercase;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.og-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #050505;
  line-height: 1.3;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

.og-card-desc {
  font-size: 0.82rem;
  color: #65676b;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

/* 3. Twitter / X Card Preview */
.twitter-card-preview {
  background: #ffffff;
  border: 1px solid #cfd9de;
  border-radius: 16px;
  overflow: hidden;
  max-width: 100%;
}

.twitter-image-container {
  width: 100%;
  height: 180px;
  background: #eff3f4;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .twitter-image-container {
    height: 210px;
  }
}

.twitter-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.twitter-content-box {
  padding: 12px;
}

.twitter-domain {
  font-size: 0.75rem;
  color: #536471;
  margin-bottom: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.twitter-card-title {
  font-size: 0.925rem;
  font-weight: 700;
  color: #0f1419;
  line-height: 1.3;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.twitter-card-desc {
  font-size: 0.82rem;
  color: #536471;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

/* Generated Code Output Box (Protected from overflow) */
.code-output-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

.code-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 8px;
}

.code-title {
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-actions-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.code-viewport-box {
  position: relative;
  background: #11101e;
  padding: 16px;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.code-pre {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* Syntax Highlighting Colors */
.token-tag {
  color: #f472b6;
}
.token-attr {
  color: #93c5fd;
}
.token-val {
  color: #6ee7b7;
}
.token-comment {
  color: #64748b;
  font-style: italic;
}

/* --------------------------------------------------------------------------
   12. Educational Metadata Comparison Table (Responsive Container / Zero Overflow)
   -------------------------------------------------------------------------- */
.education-section {
  padding: 48px 0;
  background-color: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-intro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 32px;
}

.section-heading {
  font-size: clamp(1.4rem, 2.5vw + 0.5rem, 2rem);
  margin-bottom: 8px;
}

.section-subtext {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* Responsive Table Wrapper */
.table-responsive-container {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}

.meta-comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
  min-width: 580px;
}

.meta-comparison-table th,
.meta-comparison-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
}

.meta-comparison-table th {
  background-color: var(--bg);
  font-weight: 700;
  color: var(--ink);
  font-family: "Lexend", sans-serif;
}

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

.meta-comparison-table tr:hover td {
  background-color: var(--bg-soft);
}

.badge-tag-type {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}

.type-seo {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.type-og {
  background: #e0f2fe;
  color: #0369a1;
}
.type-twitter {
  background: #f3e8ff;
  color: #7e22ce;
}

/* --------------------------------------------------------------------------
   13. FAQ Section
   -------------------------------------------------------------------------- */
.faq-section {
  padding: 48px 0;
}

.faq-accordion-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

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

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-family: "Lexend", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
}

.faq-question-btn svg.faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--ink-faint);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.is-open .faq-question-btn svg.faq-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  font-size: 0.925rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* --------------------------------------------------------------------------
   14. Related Tools Grid (Responsive, Real Links to 30 Huzikit Tools)
   -------------------------------------------------------------------------- */
.related-tools-section {
  padding: 48px 0;
  background-color: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.tools-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 480px) {
  .tools-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .tools-cards-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.tool-teaser-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.tool-teaser-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.teaser-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.teaser-icon svg {
  width: 20px;
  height: 20px;
}

.teaser-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.teaser-desc {
  font-size: 0.825rem;
  color: var(--ink-soft);
  flex-grow: 1;
  line-height: 1.45;
}

.teaser-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   15. Toast Notification (Copy feedback)
   -------------------------------------------------------------------------- */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--white);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  visibility: hidden;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.toast-notice.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.toast-notice svg {
  width: 18px;
  height: 18px;
  color: var(--success);
}

/* --------------------------------------------------------------------------
   16. Huzikit Premium Footer (Locked Bio, Links, Responsive Stacking)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--white);
  border-top: 1px solid var(--line);
  padding: 48px 0 24px;
  color: var(--ink-soft);
  flex-shrink: 0;
}

.footer-main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

@media (min-width: 640px) {
  .footer-main-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .footer-main-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-bio {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 320px;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

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

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
  font-family: "Lexend", sans-serif;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link-list a {
  font-size: 0.85rem;
  color: var(--ink-soft);
  transition: color var(--transition-fast);
}

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

.footer-bottom-bar {
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--ink-faint);
  text-align: center;
}

@media (min-width: 640px) {
  .footer-bottom-bar {
    flex-direction: row;
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   17. Accessibility & Reduced Motion
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

@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;
  }

  .hero-3d-card {
    transform: none !important;
  }
}