/* ==========================================================================
   HUZIKIT — PREMIUM BASE64 ENCODER / DECODER STYLESHEET
   Strict Huzikit Design System: Purple / Indigo / Violet Palette
   ========================================================================== */

:root {
  /* Huzikit Brand Core Colors */
  --ink: #15132b;
  --ink-soft: #4d4a6b;
  --ink-faint: #8985a8;

  --bg: #fcfbff;
  --bg-soft: #f4f2ff;
  --bg-elevated: #ffffff;

  --line: #e7e4f6;
  --line-soft: #f0eefb;
  --line-focus: #c5bdfc;

  --primary: #4f46e5;
  --primary-dark: #3b33c4;
  --primary-light: #eeebff;
  --primary-hover: #4338ca;

  --accent: #7c3aed;
  --accent-light: #f5f0ff;

  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;

  --warning: #f59e0b;
  --warning-light: #fef3c7;

  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;

  --white: #ffffff;
  --shadow-sm:
    0 1px 3px rgba(21, 19, 43, 0.05), 0 1px 2px rgba(21, 19, 43, 0.03);
  --shadow-md:
    0 4px 12px rgba(79, 70, 229, 0.08), 0 2px 4px rgba(21, 19, 43, 0.04);
  --shadow-lg:
    0 12px 30px rgba(79, 70, 229, 0.12), 0 4px 8px rgba(21, 19, 43, 0.04);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-heading:
    "Lexend", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   RESET & UNIVERSAL BOX MODEL (Anti-Overflow Guarantees)
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  min-width: 100%;
  overflow-x: hidden;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

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

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

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

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

/* --------------------------------------------------------------------------
   LAYOUT CONTAINER (Fluid & Responsive with zero bleed)
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (max-width: 640px) {
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }
}

/* --------------------------------------------------------------------------
   GLOBAL NAVBAR
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 251, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--transition-normal);
}

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

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

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

.brand-badge-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, 0.3);
}

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

.brand-name {
  color: var(--ink);
}

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

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

@media (max-width: 1024px) {
  .desktop-nav {
    display: none;
  }
}

.nav-item {
  position: relative;
}

.nav-link,
.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

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

.dropdown-arrow {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  transition: transform var(--transition-fast);
}

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

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 110;
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

.dropdown-menu.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  color: var(--primary);
  background-color: var(--bg-soft);
  outline: none;
  transform: translateX(3px);
}

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

.dropdown-item-badge {
  font-size: 0.72rem;
  padding: 2px 6px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-full);
  margin-left: auto;
  font-weight: 600;
}

/* Nav Actions (Search & Mobile Toggle) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-trigger-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 7px 14px;
  border-radius: var(--radius-full);
  color: var(--ink-soft);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-trigger-btn:hover {
  border-color: var(--primary);
  background: var(--white);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

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

.kbd-shortcut {
  font-size: 0.72rem;
  padding: 2px 6px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--font-mono);
  color: var(--ink-faint);
}

@media (max-width: 640px) {
  .kbd-shortcut,
  .search-label {
    display: none;
  }
  .search-trigger-btn {
    padding: 8px;
    border-radius: var(--radius-sm);
  }
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  gap: 5px;
}

@media (max-width: 1024px) {
  .hamburger-btn {
    display: flex;
  }
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.hamburger-btn.is-active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.is-active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.is-active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer Navigation */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(21, 19, 43, 0.4);
  backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 360px;
  background: var(--bg-elevated);
  z-index: 160;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  box-shadow: -8px 0 24px rgba(21, 19, 43, 0.15);
  overflow-y: auto;
}

.mobile-drawer.active {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}

.mobile-drawer-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-accordion-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 4px;
}

.mobile-accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--bg);
}

.mobile-accordion-btn[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

.mobile-accordion-list {
  display: none;
  padding: 8px 12px 12px;
  background: var(--white);
  border-top: 1px solid var(--line-soft);
}

.mobile-accordion-list.open {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-accordion-list a {
  padding: 8px 10px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  border-radius: 6px;
  display: block;
}

.mobile-accordion-list a:hover {
  background: var(--bg-soft);
  color: var(--primary);
}

.mobile-accordion-list a.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.mobile-direct-link {
  display: block;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--line);
}

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

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-faint);
  list-style: none;
}

.breadcrumb-item a {
  color: var(--ink-soft);
  transition: color var(--transition-fast);
}

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

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

.breadcrumb-item.current {
  color: var(--primary);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   HERO SECTION & LIGHTWEIGHT 3D PERSPECTIVE VISUAL
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 24px 0 32px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background: var(--primary-light);
  border: 1px solid rgba(79, 70, 229, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 14px;
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.75rem;
  }
}

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

@media (max-width: 640px) {
  .hero-description {
    font-size: 0.95rem;
  }
}

.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.trust-badge svg {
  width: 14px;
  height: 14px;
  color: var(--primary);
}

/* 3D Lightweight CSS Visual */
.hero-visual-container {
  position: relative;
  perspective: 1000px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 220px;
}

.hero-3d-stage {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 380px;
  transform-style: preserve-3d;
  transition: transform var(--transition-normal);
}

.card-3d {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transform: translateZ(10px);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

.card-3d::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.card-3d:hover {
  transform: translateZ(25px) translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card-3d-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-3d-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-soft);
  color: var(--primary);
  font-family: var(--font-mono);
}

.card-3d-content {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.card-3d-pill {
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.flow-connector svg {
  width: 16px;
  height: 16px;
  animation: bounceDown 1.8s infinite;
}

@keyframes bounceDown {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(3px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .flow-connector svg {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   PRIMARY WORKSPACE (Main Tool Container)
   -------------------------------------------------------------------------- */
.workspace-section {
  padding: 8px 0 48px;
}

.workspace-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* Workspace Tabs Bar */
.workspace-tabs-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-soft);
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.workspace-tabs-nav::-webkit-scrollbar {
  display: none;
}

.tool-tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tool-tab-btn:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
}

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

.tool-tab-btn svg {
  width: 16px;
  height: 16px;
}

/* Tab Panels */
.tab-panel {
  display: none;
  padding: 24px;
}

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

@media (max-width: 640px) {
  .tab-panel {
    padding: 16px 12px;
  }
}

/* Mode Control & Toolbar Bar */
.tool-controls-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.mode-toggle-group {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  gap: 2px;
}

.mode-btn {
  padding: 7px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

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

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

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

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

.btn-secondary svg {
  width: 14px;
  height: 14px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

/* Dual Column Editor Grid */
.editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  min-width: 0;
}

@media (max-width: 860px) {
  .editor-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.editor-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  margin-bottom: 4px;
}

.pane-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.pane-title-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: var(--bg-soft);
  color: var(--ink-faint);
  padding: 2px 6px;
  border-radius: 4px;
}

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

.pane-tool-btn {
  padding: 4px 8px;
  font-size: 0.78rem;
  color: var(--ink-faint);
  border-radius: 4px;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

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

/* Editor Input & Output Containers */
.editor-box {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  min-height: 260px;
  display: flex;
  flex-direction: column;
}

.editor-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  background: var(--white);
}

.code-textarea {
  width: 100%;
  flex: 1;
  min-height: 220px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--ink);
  outline: none;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-wrap: break-word;
}

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

.editor-footer-metrics {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
  font-size: 0.78rem;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.metrics-left,
.metrics-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.metric-item span {
  font-weight: 600;
  color: var(--ink);
}

/* Format Options Bar */
.options-bar {
  margin-top: 18px;
  padding: 14px 18px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.options-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.custom-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
}

.custom-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  border-radius: 4px;
  cursor: pointer;
}

.select-control-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.custom-select {
  padding: 5px 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--ink);
  outline: none;
  cursor: pointer;
}

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

/* Status & Validation Banner */
.status-banner {
  margin-top: 16px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  transition: all var(--transition-fast);
}

.status-banner.status-neutral {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

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

.status-banner.status-error {
  background: var(--danger-light);
  border: 1px solid var(--danger-border);
  color: #991b1b;
}

.status-banner-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-banner-content svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Size Analyzer Microcard */
.size-analyzer-card {
  margin-top: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.analyzer-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.analyzer-label {
  font-size: 0.74rem;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.analyzer-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.analyzer-value.overhead-value {
  color: var(--accent);
}

.analyzer-note {
  font-size: 0.75rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   FILE & IMAGE TAB (Binary-safe upload & preview)
   -------------------------------------------------------------------------- */
.file-dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  text-align: center;
  background: var(--bg-soft);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

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

.dropzone-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--primary);
}

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

.dropzone-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.dropzone-subtitle {
  font-size: 0.85rem;
  color: var(--ink-soft);
  max-width: 460px;
  margin: 0 auto;
}

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

/* File Info Box */
.file-meta-box {
  margin-top: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: none;
  flex-direction: column;
  gap: 12px;
}

.file-meta-box.active {
  display: flex;
}

.file-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.file-name-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.file-name-wrap svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
  flex-shrink: 0;
}

.file-name-text {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 320px;
}

.file-meta-stats {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

/* Image Preview Container */
.image-preview-card {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  padding: 16px;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.image-preview-card.active {
  display: flex;
}

.image-preview-frame {
  max-width: 100%;
  max-height: 260px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: repeating-conic-gradient(#e7e4f6 0% 25%, #ffffff 0% 50%) 50% /
    16px 16px;
}

.image-preview-frame img {
  display: block;
  max-height: 260px;
  width: auto;
  object-fit: contain;
}

.image-preview-details {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   HEX & BYTE INSPECTOR TAB
   -------------------------------------------------------------------------- */
.hex-inspector-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.byte-table-container {
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.byte-table {
  width: 100%;
  border-collapse: collapse;
}

.byte-table th {
  background: var(--bg-soft);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 2;
}

.byte-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink);
}

.byte-table tr:hover td {
  background: var(--primary-light);
}

/* --------------------------------------------------------------------------
   BATCH QUEUE TAB
   -------------------------------------------------------------------------- */
.batch-controls-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.batch-queue-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 340px;
  overflow-y: auto;
}

.batch-queue-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  gap: 12px;
}

.batch-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.batch-item-left svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.batch-item-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 240px;
}

.batch-item-size {
  font-size: 0.78rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
}

.batch-item-status {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.status-pending {
  background: var(--warning-light);
  color: #b45309;
}

.status-done {
  background: var(--success-light);
  color: #065f46;
}

.batch-item-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   HISTORY & FAVORITES SLIDE-IN OR SECTION
   -------------------------------------------------------------------------- */
.history-section {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

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

.history-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  gap: 10px;
  transition: all var(--transition-fast);
}

.history-item:hover {
  background: var(--white);
  border-color: var(--line);
}

.history-item-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.history-mode-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--primary-light);
  color: var(--primary);
  font-family: var(--font-mono);
}

.history-snippet {
  font-family: var(--font-mono);
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 380px;
}

.history-item-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   EDUCATIONAL SECTIONS & MICRO-CARDS (GEO & AI Search Answer First)
   -------------------------------------------------------------------------- */
.education-section {
  padding: 48px 0;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 36px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  margin-bottom: 8px;
}

.section-h2 {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-lead {
  font-size: 0.98rem;
  color: var(--ink-soft);
}

/* Micro-cards Grid */
.microcards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.microcard {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

.microcard:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.microcard-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.microcard-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
}

.microcard-body {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* Answer-First Deep Technical Content */
.deep-content-wrap {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

@media (max-width: 640px) {
  .deep-content-wrap {
    padding: 20px 16px;
  }
}

.content-block h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.content-block p {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 12px;
}

.content-block p strong {
  color: var(--ink);
}

.content-block ul {
  padding-left: 20px;
  margin-bottom: 12px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.7;
}

.content-block ul li {
  margin-bottom: 6px;
}

.code-snippet-box {
  background: var(--ink);
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.5;
  overflow-x: auto;
  margin: 12px 0;
}

/* Comparison Table */
.comparison-table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.comparison-table th {
  background: var(--bg-soft);
  padding: 12px 16px;
  color: var(--ink);
  font-family: var(--font-heading);
  font-weight: 700;
  border-bottom: 1px solid var(--line);
}

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

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

/* --------------------------------------------------------------------------
   FAQ SECTION (Accessible Accordion)
   -------------------------------------------------------------------------- */
.faq-section {
  padding: 36px 0 60px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 860px;
  margin: 0 auto;
}

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

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

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  gap: 16px;
}

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

.faq-icon-arrow {
  width: 18px;
  height: 18px;
  color: var(--primary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-trigger[aria-expanded="true"] .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-content {
  display: none;
  padding: 0 20px 20px;
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

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

/* --------------------------------------------------------------------------
   RELATED TOOLS SECTION
   -------------------------------------------------------------------------- */
.related-tools-section {
  padding: 40px 0 60px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

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

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

.related-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

.related-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.related-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.related-cat {
  font-size: 0.76rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   GLOBAL FOOTER (Strict Huzikit Dark Theme)
   -------------------------------------------------------------------------- */
.site-footer {
  background: #0e0c1f;
  color: #c5bdfc;
  padding: 64px 0 28px;
  margin-top: auto;
  border-top: 1px solid rgba(231, 228, 246, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--white);
}

.footer-bio {
  font-size: 0.88rem;
  color: #9d99c2;
  line-height: 1.6;
  max-width: 320px;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

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

.social-btn:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.social-btn svg {
  width: 18px;
  height: 18px;
}

.footer-column-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

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

.footer-links-list a {
  font-size: 0.86rem;
  color: #9d99c2;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: #7a75a3;
}

.footer-tagline {
  color: #9d99c2;
}

/* --------------------------------------------------------------------------
   GLOBAL SEARCH MODAL (All 30 Tools)
   -------------------------------------------------------------------------- */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(21, 19, 43, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 16px 20px;
}

.search-modal-backdrop.active {
  display: flex;
}

.search-modal-dialog {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(21, 19, 43, 0.2);
  width: 100%;
  max-width: 620px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalSlideDown 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.search-input-wrap svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.search-input-field {
  width: 100%;
  border: none;
  outline: none;
  font-size: 1.05rem;
  font-family: var(--font-body);
  color: var(--ink);
}

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

.search-close-btn {
  font-size: 0.8rem;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg-soft);
  color: var(--ink-soft);
}

.search-results-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.search-result-item:hover,
.search-result-item.selected {
  background: var(--primary-light);
  color: var(--primary);
}

.search-result-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-result-icon {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.search-result-title {
  font-weight: 600;
  font-size: 0.92rem;
}

.search-result-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-soft);
  color: var(--ink-faint);
}

.search-empty-state {
  padding: 36px 20px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.search-modal-footer {
  padding: 10px 18px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   TOAST NOTIFICATION (Temporary Feedback)
   -------------------------------------------------------------------------- */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--white);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 300;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-notice svg {
  width: 16px;
  height: 16px;
  color: var(--success);
}