/* ==========================================================================
   HUZIKIT — PREMIUM JSON FORMATTER & DEVELOPER UTILITY STYLESHEET
   Design System: Huzikit Purple / Indigo / Violet Identity
   Strict Zero-Horizontal-Overflow Responsive Layout (320px to 1920px+)
   ========================================================================== */

:root {
  /* Huzikit Brand Design Tokens */
  --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 Feedback Tokens */
  --valid: #059669;
  --valid-bg: #ecfdf5;
  --valid-line: #a7f3d0;
  --invalid: #dc2626;
  --invalid-bg: #fef2f2;
  --invalid-line: #fecaca;
  --warn: #d97706;
  --warn-bg: #fffbeb;
  --warn-line: #fde68a;

  /* Dark Editor Palette (Huzikit Ink-Violet Theme) */
  --editor-bg: #15132b;
  --editor-surface: #1e1a3a;
  --editor-gutter: #181530;
  --editor-line: #2e2857;
  --editor-text: #e5e3f7;
  --editor-muted: #8e8aa8;
  --editor-accent: #a78bfa;

  /* Typography Stacks */
  --font-heading: "Lexend", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-code:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Transitions & Shadows */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 3px rgba(21, 19, 43, 0.05);
  --shadow-md: 0 4px 12px rgba(21, 19, 43, 0.08);
  --shadow-lg:
    0 10px 25px -5px rgba(21, 19, 43, 0.12),
    0 8px 10px -6px rgba(21, 19, 43, 0.05);
  --shadow-purple: 0 10px 25px -5px rgba(79, 70, 229, 0.25);
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global Box Model */
*,
*::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: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

body.scroll-locked {
  overflow: hidden;
  touch-action: none;
}

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

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

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

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

/* Container Utility */
.hz-container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (max-width: 480px) {
  .hz-container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -999px;
  left: 16px;
  background: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 99999;
  font-weight: 600;
  font-size: 0.875rem;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 16px;
  outline: 3px solid var(--accent);
}

/* ==========================================================================
   GLOBAL HUZIKIT NAVBAR
   ========================================================================== */
.hz-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(252, 251, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: border-color var(--transition);
}

.hz-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 16px;
}

.hz-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.hz-brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  border-radius: 9px;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

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

/* Desktop Navigation Menu */
.hz-nav-desktop {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

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

.hz-nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.hz-nav-link:hover,
.hz-nav-link:focus-visible,
.hz-nav-item.active .hz-nav-link {
  color: var(--primary);
  background-color: var(--primary-light);
}

.hz-nav-link svg.hz-chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.hz-nav-item:hover .hz-chevron,
.hz-nav-item:focus-within .hz-chevron {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.hz-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  list-style: none;
  z-index: 1010;
}

.hz-nav-item:hover .hz-dropdown,
.hz-nav-item:focus-within .hz-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(2px);
}

.hz-dropdown-link {
  display: block;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.hz-dropdown-link:hover,
.hz-dropdown-link:focus-visible {
  background-color: var(--primary-light);
  color: var(--primary);
  padding-left: 16px;
}

.hz-dropdown-link.current {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

/* Header Right Actions */
.hz-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hz-search-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 9999px;
  color: var(--ink-faint);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
}

.hz-search-trigger:hover,
.hz-search-trigger:focus-visible {
  border-color: var(--primary);
  color: var(--ink-soft);
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
}

.hz-search-trigger kbd {
  font-family: var(--font-code);
  font-size: 0.75rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--ink-soft);
  line-height: 1;
}

.hz-hamburger-btn {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  transition: all var(--transition);
}

.hz-hamburger-btn:hover {
  background-color: var(--bg-soft);
}

.hz-hamburger-icon {
  width: 22px;
  height: 22px;
  position: relative;
}

.hz-hamburger-icon span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: 0.25s ease-in-out;
}

.hz-hamburger-icon span:nth-child(1) {
  top: 3px;
}
.hz-hamburger-icon span:nth-child(2) {
  top: 10px;
}
.hz-hamburger-icon span:nth-child(3) {
  top: 17px;
}

.hz-hamburger-btn[aria-expanded="true"] .hz-hamburger-icon span:nth-child(1) {
  top: 10px;
  transform: rotate(135deg);
}

.hz-hamburger-btn[aria-expanded="true"] .hz-hamburger-icon span:nth-child(2) {
  opacity: 0;
  left: -20px;
}

.hz-hamburger-btn[aria-expanded="true"] .hz-hamburger-icon span:nth-child(3) {
  top: 10px;
  transform: rotate(-135deg);
}

/* ==========================================================================
   MOBILE NAVIGATION DRAWER
   ========================================================================== */
.hz-mobile-menu {
  position: fixed;
  top: 70px;
  left: 0;
  width: 100%;
  height: calc(100vh - 70px);
  background: var(--white);
  z-index: 999;
  overflow-y: auto;
  padding: 20px;
  display: none;
  transform: translateY(-10px);
  opacity: 0;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
  border-top: 1px solid var(--line);
}

.hz-mobile-menu.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.hz-mobile-search-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.hz-mobile-accordion {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.hz-accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--bg-soft);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  text-align: left;
}

.hz-accordion-trigger svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition);
}

.hz-accordion-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.hz-accordion-content {
  display: none;
  padding: 8px 12px;
  background: var(--white);
  list-style: none;
}

.hz-accordion-content.open {
  display: block;
}

.hz-accordion-content li a {
  display: block;
  padding: 10px 12px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
}

.hz-accordion-content li a:hover,
.hz-accordion-content li a.current {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.hz-mobile-direct-links {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hz-mobile-direct-links a {
  display: block;
  padding: 12px 16px;
  font-weight: 600;
  color: var(--ink);
  border-radius: var(--radius-md);
  background: var(--bg-soft);
}

/* ==========================================================================
   GLOBAL SEARCH MODAL
   ========================================================================== */
.hz-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(21, 19, 43, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 16px 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

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

.hz-search-dialog {
  width: 100%;
  max-width: 640px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: 0 20px 40px -10px rgba(21, 19, 43, 0.25);
  overflow: hidden;
  transform: translateY(-16px) scale(0.98);
  transition: transform var(--transition);
}

.hz-modal-backdrop.open .hz-search-dialog {
  transform: translateY(0) scale(1);
}

.hz-search-header {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  gap: 12px;
}

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

.hz-search-input {
  flex: 1;
  border: none;
  background: none;
  outline: none;
  font-size: 1.05rem;
  color: var(--ink);
}

.hz-search-input::placeholder {
  color: var(--ink-faint);
}

.hz-search-close-btn {
  font-size: 0.8125rem;
  padding: 4px 8px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink-soft);
}

.hz-search-results {
  max-height: 380px;
  overflow-y: auto;
  padding: 12px 8px;
  list-style: none;
}

.hz-search-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--ink);
  transition: background var(--transition);
}

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

.hz-search-item-info {
  display: flex;
  flex-direction: column;
}

.hz-search-item-name {
  font-weight: 600;
  font-size: 0.9375rem;
}

.hz-search-item-desc {
  font-size: 0.8125rem;
  color: var(--ink-faint);
}

.hz-search-item-category {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 9999px;
  background: var(--bg-soft);
  color: var(--ink-soft);
  font-weight: 500;
}

.hz-search-empty {
  padding: 32px 20px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.9375rem;
}

.hz-search-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  color: var(--ink-faint);
}

/* ==========================================================================
   BREADCRUMB
   ========================================================================== */
.hz-breadcrumb-section {
  padding: 16px 0 8px;
}

.hz-breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  font-size: 0.875rem;
  color: var(--ink-faint);
}

.hz-breadcrumb-list a {
  color: var(--ink-soft);
  transition: color var(--transition);
}

.hz-breadcrumb-list a:hover {
  color: var(--primary);
}

.hz-breadcrumb-separator {
  color: var(--ink-faint);
  user-select: none;
}

.hz-breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

/* ==========================================================================
   HERO SECTION WITH LIGHTWEIGHT CSS 3D DEVELOPER VISUAL
   ========================================================================== */
.hz-hero {
  padding: 24px 0 28px;
}

.hz-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 36px;
  align-items: center;
}

.hz-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--line);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.hz-hero-badge span.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hz-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.18;
  color: var(--ink);
  letter-spacing: -0.025em;
  margin-bottom: 14px;
}

.hz-hero p.hz-hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 620px;
}

.hz-hero-trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.hz-trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 500;
}

.hz-trust-pill svg {
  color: var(--primary);
  width: 16px;
  height: 16px;
}

/* Lightweight CSS 3D Interactive Visual */
.hz-hero-visual-stage {
  perspective: 1000px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px 0;
}

.hz-3d-card-wrap {
  width: 100%;
  max-width: 360px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(8deg) rotateY(-10deg);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.hz-hero-visual-stage:hover .hz-3d-card-wrap {
  transform: rotateX(2deg) rotateY(-3deg) translateY(-4px);
}

.hz-3d-card {
  background: var(--ink);
  border: 1px solid rgba(167, 139, 250, 0.25);
  border-radius: var(--radius-lg);
  padding: 18px;
  color: var(--white);
  box-shadow:
    0 20px 35px -10px rgba(21, 19, 43, 0.35),
    0 0 25px rgba(124, 58, 237, 0.15);
  position: relative;
  overflow: hidden;
}

.hz-3d-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at center,
    rgba(124, 58, 237, 0.12) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.hz-3d-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 10px;
}

.hz-3d-dots {
  display: flex;
  gap: 6px;
}

.hz-3d-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}

.hz-3d-tag {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(124, 58, 237, 0.2);
  padding: 2px 8px;
  border-radius: 4px;
}

.hz-3d-code {
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #c4b5fd;
}

.hz-3d-code .k {
  color: #a78bfa;
}
.hz-3d-code .s {
  color: #34d399;
}
.hz-3d-code .b {
  color: #f472b6;
}

.hz-3d-pill-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 10px 0;
  padding: 6px;
  background: rgba(79, 70, 229, 0.18);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
}

.hz-3d-pill-flow svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

@media (prefers-reduced-motion: reduce) {
  .hz-3d-card-wrap {
    transform: none !important;
    transition: none !important;
  }
}

/* ==========================================================================
   MAIN JSON TOOL WORKSPACE (ABOVE THE FOLD)
   ========================================================================== */
.hz-tool-section {
  padding-bottom: 40px;
}

.hz-tool-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all var(--transition);
}

/* Tool Top Toolbar */
.hz-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.hz-toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

/* Standard Buttons */
.hz-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.25;
}

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

.hz-btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.3);
}

.hz-btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-purple);
}

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

.hz-btn-secondary:hover {
  background: var(--bg-soft);
  border-color: var(--ink-faint);
}

.hz-btn-secondary.active {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

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

.hz-btn-danger:hover {
  background: var(--invalid-bg);
}

.hz-btn-icon {
  padding: 8px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
}

.hz-btn-icon:hover {
  background: var(--bg-soft);
  color: var(--primary);
}

/* Toolbar Select & Inputs */
.hz-select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.hz-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 28px 7px 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
}

.hz-select:focus {
  border-color: var(--primary);
}

.hz-select-wrap svg {
  position: absolute;
  right: 8px;
  pointer-events: none;
  width: 14px;
  height: 14px;
  color: var(--ink-faint);
}

.hz-toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
}

.hz-toggle-label input[type="checkbox"] {
  accent-color: var(--primary);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* Secondary Sub-Toolbar / Options Bar */
.hz-sub-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 20px;
  background: var(--white);
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.8125rem;
}

/* Notification & Validation Banners */
.hz-banner-stack {
  padding: 0 20px;
}

.hz-banner {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin-top: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hz-banner.show {
  display: flex;
}

.hz-banner-valid {
  background: var(--valid-bg);
  border: 1px solid var(--valid-line);
  color: var(--valid);
}

.hz-banner-invalid {
  background: var(--invalid-bg);
  border: 1px solid var(--invalid-line);
  color: var(--invalid);
}

.hz-banner-warn {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  color: var(--warn);
}

.hz-banner-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.hz-banner-content svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.hz-banner-close {
  background: none;
  border: none;
  color: inherit;
  opacity: 0.7;
  padding: 2px;
}

.hz-banner-close:hover {
  opacity: 1;
}

/* Main Split Workspace Grid */
.hz-workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  min-height: 520px;
  background: var(--white);
}

/* Editor Pane (Left Column) */
.hz-pane {
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 0;
}

.hz-pane:first-child {
  border-right: 1px solid var(--line);
}

.hz-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.hz-pane-title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hz-pane-tools {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* File Drop Zone Overlay */
.hz-editor-container {
  display: flex;
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--white);
}

.hz-dropzone-overlay {
  position: absolute;
  inset: 0;
  background: rgba(238, 235, 255, 0.94);
  border: 2px dashed var(--primary);
  z-index: 50;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 600;
  pointer-events: none;
}

.hz-dropzone-overlay.active {
  display: flex;
}

.hz-dropzone-overlay svg {
  width: 44px;
  height: 44px;
}

/* Synchronized Line Numbers & Textarea */
.hz-line-numbers {
  width: 44px;
  padding: 14px 6px 14px 10px;
  background: var(--bg-soft);
  color: var(--ink-faint);
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.5;
  text-align: right;
  user-select: none;
  overflow: hidden;
  border-right: 1px solid var(--line-soft);
  white-space: pre-wrap;
  word-break: normal;
}

.hz-textarea {
  flex: 1;
  width: 100%;
  height: 100%;
  min-height: 460px;
  padding: 14px;
  border: none;
  outline: none;
  resize: none;
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--ink);
  background: transparent;
  white-space: pre;
  tab-size: 2;
}

.hz-textarea::placeholder {
  color: var(--ink-faint);
}

/* Dark Theme Support for Editor */
.hz-tool-card.theme-dark .hz-workspace-grid,
.hz-tool-card.theme-dark .hz-editor-container,
.hz-tool-card.theme-dark .hz-output-body,
.hz-tool-card.theme-dark .hz-tree-view,
.hz-tool-card.theme-dark .hz-diff-container,
.hz-tool-card.theme-dark .hz-stats-container,
.hz-tool-card.theme-dark .hz-converters-container {
  background: var(--editor-bg);
  color: var(--editor-text);
}

.hz-tool-card.theme-dark .hz-pane-header,
.hz-tool-card.theme-dark .hz-line-numbers,
.hz-tool-card.theme-dark .hz-output-line-numbers {
  background: var(--editor-gutter);
  color: var(--editor-muted);
  border-color: var(--editor-line);
}

.hz-tool-card.theme-dark .hz-pane:first-child {
  border-color: var(--editor-line);
}

.hz-tool-card.theme-dark .hz-textarea,
.hz-tool-card.theme-dark .hz-code-display {
  color: var(--editor-text);
}

/* Right Pane View Tabs */
.hz-view-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--line-soft);
  padding: 3px;
  border-radius: var(--radius-sm);
}

.hz-tab-btn {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-soft);
  border-radius: 4px;
  transition: all var(--transition);
}

.hz-tab-btn:hover {
  color: var(--ink);
}

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

/* Output Display Areas */
.hz-output-body {
  display: flex;
  flex: 1;
  position: relative;
  overflow: auto;
  min-height: 460px;
  background: var(--white);
}

.hz-output-line-numbers {
  width: 44px;
  padding: 14px 6px 14px 10px;
  background: var(--bg-soft);
  color: var(--ink-faint);
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.5;
  text-align: right;
  user-select: none;
  overflow: hidden;
  border-right: 1px solid var(--line-soft);
  white-space: pre-wrap;
}

.hz-code-display {
  flex: 1;
  padding: 14px;
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--ink);
  overflow: auto;
  white-space: pre;
  tab-size: 2;
  user-select: text;
}

/* Tab Views Container */
.hz-tab-content {
  display: none;
  width: 100%;
  height: 100%;
}

.hz-tab-content.active {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* ==========================================================================
   INTERACTIVE JSON TREE VIEWER
   ========================================================================== */
.hz-tree-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.hz-tree-search-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 0.8125rem;
}

.hz-tree-search-bar input {
  border: none;
  outline: none;
  background: none;
  width: 140px;
  font-size: 0.8125rem;
}

.hz-tree-search-count {
  font-size: 0.75rem;
  color: var(--ink-faint);
  white-space: nowrap;
}

.hz-tree-view {
  flex: 1;
  padding: 16px;
  overflow: auto;
  font-family: var(--font-code);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.hz-tree-node {
  margin-left: 18px;
  position: relative;
}

.hz-tree-node.root {
  margin-left: 0;
}

.hz-tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 4px;
  border-radius: 4px;
  cursor: pointer;
}

.hz-tree-row:hover {
  background: var(--bg-soft);
}

.hz-tool-card.theme-dark .hz-tree-row:hover {
  background: var(--editor-surface);
}

.hz-tree-row.selected {
  background: var(--primary-light);
  color: var(--primary);
}

.hz-tool-card.theme-dark .hz-tree-row.selected {
  background: rgba(124, 58, 237, 0.25);
  color: #ddd6fe;
}

.hz-tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  color: var(--ink-faint);
  transition: transform var(--transition);
}

.hz-tree-toggle.collapsed {
  transform: rotate(-90deg);
}

.hz-tree-key {
  font-weight: 600;
  color: var(--primary);
}

.hz-tool-card.theme-dark .hz-tree-key {
  color: #a78bfa;
}

.hz-tree-sep {
  color: var(--ink-faint);
}

/* Type Styling */
.hz-type-badge {
  font-size: 0.6875rem;
  padding: 1px 5px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.hz-type-string {
  color: #059669;
}
.hz-type-number {
  color: #d97706;
}
.hz-type-boolean {
  color: #7c3aed;
}
.hz-type-null {
  color: #6b7280;
  font-style: italic;
}

.hz-tool-card.theme-dark .hz-type-string {
  color: #34d399;
}
.hz-tool-card.theme-dark .hz-type-number {
  color: #fbbf24;
}
.hz-tool-card.theme-dark .hz-type-boolean {
  color: #c084fc;
}

.hz-tree-path-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 16px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
}

.hz-path-text {
  font-family: var(--font-code);
  color: var(--primary);
  word-break: break-all;
}

/* Highlight in search */
mark.hz-highlight {
  background: #fef08a;
  color: #854d0e;
  padding: 1px 2px;
  border-radius: 2px;
}

/* ==========================================================================
   JSON DIFF / COMPARE WORKSPACE
   ========================================================================== */
.hz-diff-container {
  padding: 16px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hz-diff-inputs-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.hz-diff-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hz-diff-box label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.hz-diff-textarea {
  min-height: 140px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-code);
  font-size: 0.8125rem;
  outline: none;
  resize: vertical;
}

.hz-diff-textarea:focus {
  border-color: var(--primary);
}

.hz-diff-results {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
}

.hz-diff-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.hz-diff-pill {
  padding: 3px 8px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.hz-diff-pill.added {
  background: var(--valid-bg);
  color: var(--valid);
}
.hz-diff-pill.removed {
  background: var(--invalid-bg);
  color: var(--invalid);
}
.hz-diff-pill.changed {
  background: var(--warn-bg);
  color: var(--warn);
}

.hz-diff-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
  font-family: var(--font-code);
  font-size: 0.8125rem;
}

.hz-diff-item {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--line);
}

.hz-tool-card.theme-dark .hz-diff-item {
  background: var(--editor-surface);
  border-color: var(--editor-line);
}

.hz-diff-item.add {
  border-left: 3px solid var(--valid);
}
.hz-diff-item.del {
  border-left: 3px solid var(--invalid);
}
.hz-diff-item.mod {
  border-left: 3px solid var(--warn);
}

/* ==========================================================================
   STATISTICS & ANALYZER
   ========================================================================== */
.hz-stats-container {
  padding: 20px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hz-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
}

.hz-stat-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.hz-tool-card.theme-dark .hz-stat-card {
  background: var(--editor-surface);
  border-color: var(--editor-line);
}

.hz-stat-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.hz-tool-card.theme-dark .hz-stat-value {
  color: #a78bfa;
}

.hz-stat-label {
  font-size: 0.75rem;
  color: var(--ink-soft);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hz-tool-card.theme-dark .hz-stat-label {
  color: var(--editor-muted);
}

.hz-size-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
}

.hz-tool-card.theme-dark .hz-size-card {
  background: var(--editor-surface);
  border-color: var(--editor-line);
}

.hz-size-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--ink);
}

.hz-tool-card.theme-dark .hz-size-title {
  color: var(--editor-text);
}

.hz-size-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hz-size-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.hz-tool-card.theme-dark .hz-size-row {
  color: var(--editor-muted);
}

/* ==========================================================================
   CONVERTERS & STRING UTILITIES
   ========================================================================== */
.hz-converters-container {
  padding: 20px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hz-conv-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hz-tool-card.theme-dark .hz-conv-card {
  background: var(--editor-surface);
  border-color: var(--editor-line);
}

.hz-conv-title {
  font-weight: 600;
  font-size: 0.9375rem;
}

/* Bottom Status Footer */
.hz-tool-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.hz-status-indicators {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hz-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.hz-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-faint);
}

.hz-status-dot.valid {
  background: var(--valid);
  box-shadow: 0 0 6px var(--valid);
}

.hz-status-dot.invalid {
  background: var(--invalid);
  box-shadow: 0 0 6px var(--invalid);
}

/* Focus Mode / Fullscreen */
.hz-tool-card.focus-mode {
  position: fixed;
  inset: 12px;
  z-index: 5000;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   FEATURE SHOWCASE / PRODUCT POSITIONING SECTION
   ========================================================================== */
.hz-features-section {
  padding: 40px 0 60px;
}

.hz-section-heading {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.hz-section-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.hz-section-heading h2 {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hz-section-heading p {
  color: var(--ink-soft);
  font-size: 1rem;
}

.hz-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.hz-feature-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.hz-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.hz-feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.hz-feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.hz-feature-card p {
  font-size: 0.9375rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* ==========================================================================
   EDUCATIONAL & TECHNICAL CONTENT (1,200–1,700 WORDS)
   ========================================================================== */
.hz-edu-section {
  padding: 50px 0 70px;
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hz-edu-content {
  max-width: 900px;
  margin: 0 auto;
}

.hz-edu-content h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--ink);
  margin: 36px 0 16px;
  letter-spacing: -0.015em;
}

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

.hz-edu-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  margin: 24px 0 12px;
}

.hz-edu-content p {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 18px;
}

.hz-edu-content ul,
.hz-edu-content ol {
  margin: 16px 0 24px 24px;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.75;
}

.hz-edu-content li {
  margin-bottom: 8px;
}

.hz-code-example {
  background: var(--ink);
  color: #e2e8f0;
  padding: 18px;
  border-radius: var(--radius-md);
  font-family: var(--font-code);
  font-size: 0.8125rem;
  overflow-x: auto;
  margin: 20px 0 24px;
  line-height: 1.5;
}

.hz-callout {
  border-left: 4px solid var(--primary);
  background: var(--bg-soft);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
}

.hz-callout h4 {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.hz-callout p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* ==========================================================================
   FAQ ACCORDION SECTION
   ========================================================================== */
.hz-faq-section {
  padding: 60px 0 70px;
}

.hz-faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

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

.hz-faq-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  background: none;
  cursor: pointer;
  gap: 16px;
}

.hz-faq-btn svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.hz-faq-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.hz-faq-panel {
  display: none;
  padding: 0 22px 20px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.7;
}

.hz-faq-panel.open {
  display: block;
}

/* ==========================================================================
   RELATED HUZIKIT DEVELOPER TOOLS
   ========================================================================== */
.hz-related-section {
  padding: 50px 0 60px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.hz-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.hz-related-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.hz-related-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  color: var(--primary);
}

.hz-related-card svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.hz-related-card span {
  font-weight: 600;
  font-size: 0.9375rem;
}

/* ==========================================================================
   GLOBAL HUZIKIT DARK FOOTER
   ========================================================================== */
.hz-footer {
  background-color: var(--ink);
  color: #c5c2df;
  padding: 60px 0 30px;
  margin-top: auto;
  border-top: 1px solid #2b2754;
}

.hz-footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}

.hz-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hz-footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
}

.hz-footer-bio {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #a49fca;
  max-width: 320px;
}

.hz-footer-social {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hz-footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  transition: all var(--transition);
}

.hz-footer-social a:hover {
  background: var(--primary);
}

.hz-footer-col h4 {
  font-family: var(--font-heading);
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.hz-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hz-footer-links a {
  font-size: 0.875rem;
  color: #a49fca;
  transition: color var(--transition);
}

.hz-footer-links a:hover {
  color: var(--white);
}

.hz-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
  color: #7e78a8;
}

/* ==========================================================================
   RESPONSIVE LAYOUT SPECIFICATIONS (ZERO OVERFLOW)
   ========================================================================== */
@media (max-width: 1024px) {
  .hz-nav-desktop {
    display: none;
  }
  .hz-hamburger-btn {
    display: flex;
  }
  .hz-hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hz-hero-visual-stage {
    display: none;
  }
  .hz-footer-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .hz-workspace-grid {
    grid-template-columns: 1fr;
  }
  .hz-pane:first-child {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .hz-textarea {
    min-height: 280px;
  }
  .hz-output-body {
    min-height: 320px;
  }
  .hz-diff-inputs-grid {
    grid-template-columns: 1fr;
  }
  .hz-search-trigger span {
    display: none;
  }
  .hz-hero h1 {
    font-size: 1.85rem;
  }
  .hz-footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .hz-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .hz-toolbar-group {
    width: 100%;
    justify-content: stretch;
  }
  .hz-btn {
    flex: 1;
    font-size: 0.8125rem;
    padding: 8px 10px;
  }
  .hz-sub-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .hz-hero h1 {
    font-size: 1.6rem;
  }
  .hz-hero p.hz-hero-desc {
    font-size: 0.95rem;
  }
  .hz-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}