/* ============================================================
   HashmiTools.com — Global Design System v2.0
   Light Mode Default | Dark Mode Optional
   Author: HashmiTools.com
   ============================================================ */

/* ---- Google Fonts Import ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ============================================================
   CSS VARIABLES — LIGHT MODE (DEFAULT)
   ============================================================ */
:root {
  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --bg-glass: rgba(108, 99, 255, 0.04);
  --bg-hover: #f0f0ff;

  /* Text */
  --text-primary: #1a1a2e;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --text-inverse: #ffffff;

  /* Accent Colors */
  --accent-primary: #6c63ff;
  --accent-secondary: #a29bfe;
  --accent-tertiary: #fd79a8;
  --accent-cyan: #00cec9;
  --accent-emerald: #00b894;
  --accent-amber: #fdcb6e;
  --accent-red: #e17055;
  --accent-blue: #0984e3;

  /* Semantic Colors */
  --success: #00b894;
  --warning: #fdcb6e;
  --danger: #e17055;
  --info: #0984e3;

  /* Borders */
  --border-color: #e9ecef;
  --border-focus: #6c63ff;
  --border-glass: rgba(108, 99, 255, 0.15);

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.16);
  --shadow-glow: 0 0 30px rgba(108,99,255,0.2);

  /* Gradients */
  --gradient-main: linear-gradient(135deg, #6c63ff 0%, #a29bfe 100%);
  --gradient-blue: linear-gradient(135deg, #0984e3, #74b9ff);
  --gradient-green: linear-gradient(135deg, #00b894, #55efc4);
  --gradient-orange: linear-gradient(135deg, #fd7272, #fdcb6e);
  --gradient-pink: linear-gradient(135deg, #fd79a8, #e84393);
  --gradient-purple: linear-gradient(135deg, #6c63ff, #a855f7);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

  /* Layout */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s ease;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-alt: 'Poppins', sans-serif;

  /* Nav */
  --nav-height: 68px;
  --nav-bg: rgba(255, 255, 255, 0.92);
  --nav-border: rgba(0,0,0,0.08);
}

/* ============================================================
   CSS VARIABLES — DARK MODE
   ============================================================ */
[data-theme="dark"] {
  /* Backgrounds */
  --bg-primary: #0a0e1a;
  --bg-secondary: #12192c;
  --bg-card: #1a2238;
  --bg-glass: rgba(255,255,255,0.04);
  --bg-hover: #1e2d4a;

  /* Text */
  --text-primary: #e0e6ff;
  --text-secondary: #8892b0;
  --text-muted: #4a5568;
  --text-inverse: #0a0e1a;

  /* Accent Colors */
  --accent-primary: #7c73ff;
  --accent-secondary: #a29bfe;

  /* Borders */
  --border-color: #2d3561;
  --border-focus: #7c73ff;
  --border-glass: rgba(255,255,255,0.08);

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 30px rgba(124,115,255,0.3);

  /* Nav */
  --nav-bg: rgba(10, 14, 26, 0.92);
  --nav-border: rgba(255,255,255,0.08);
}

/* ============================================================
   RESET & BASE STYLES
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul, ol { list-style: none; }

input, select, textarea {
  font-family: inherit;
  transition: var(--transition);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-secondary); }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-xs {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   GLOBAL NAVBAR
   ============================================================ */
.ht-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  transition: var(--transition);
}

.ht-navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.ht-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.ht-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.ht-nav-logo .logo-icon {
  font-size: 1.6rem;
}

.ht-nav-logo .logo-accent {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ht-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ht-nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.ht-nav-link:hover,
.ht-nav-link.active {
  color: var(--accent-primary);
  background: var(--bg-glass);
}

.ht-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================================================
   THEME TOGGLE BUTTON
   ============================================================ */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
  transform: rotate(15deg);
}

/* ============================================================
   CARDS
   ============================================================ */
.ht-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.ht-card-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.ht-card-body {
  padding: 24px;
}

.ht-card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.ht-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  min-height: 44px;
}

.ht-btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 15px rgba(108,99,255,0.3);
}

.ht-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108,99,255,0.4);
}

.ht-btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

.ht-btn-outline {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.ht-btn-outline:hover {
  background: var(--accent-primary);
  color: white;
}

.ht-btn-danger {
  background: linear-gradient(135deg, #e17055, #d63031);
  color: white;
}

.ht-btn-success {
  background: var(--gradient-green);
  color: white;
}

.ht-btn-sm {
  padding: 8px 16px;
  font-size: 0.82rem;
  min-height: 36px;
}

.ht-btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
  min-height: 52px;
  border-radius: var(--radius-lg);
}

.ht-btn-full { width: 100%; }

.ht-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Loading state */
.ht-btn.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.8;
}

.ht-btn.loading::after {
  content: '';
  position: absolute;
  right: 12px;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.ht-form-group {
  margin-bottom: 20px;
}

.ht-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.ht-input,
.ht-select,
.ht-textarea {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.ht-textarea {
  height: auto;
  min-height: 120px;
  padding: 14px 16px;
  resize: vertical;
}

.ht-input:focus,
.ht-select:focus,
.ht-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.12);
  background: var(--bg-card);
}

.ht-input.error,
.ht-select.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(225,112,85,0.12);
}

.ht-input-error {
  font-size: 0.8rem;
  color: var(--danger);
  margin-top: 4px;
}

.ht-input-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   SLIDERS
   ============================================================ */
.ht-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  outline: none;
  cursor: pointer;
}

.ht-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 0 0 3px rgba(108,99,255,0.2);
  transition: var(--transition);
}

.ht-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 5px rgba(108,99,255,0.3);
}

.ht-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 0 3px rgba(108,99,255,0.2);
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.ht-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.83rem;
  color: var(--text-muted);
  padding: 12px 0;
  flex-wrap: wrap;
}

.ht-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

.ht-breadcrumb .sep {
  color: var(--border-color);
  font-size: 0.7rem;
}

/* ============================================================
   TOOL PAGE LAYOUT
   ============================================================ */
.tool-page-wrapper {
  padding-top: calc(var(--nav-height) + 24px);
  padding-bottom: 80px;
  min-height: 100vh;
}

.tool-hero {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  padding: 48px 0 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tool-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.15) 0%, transparent 70%);
}

.tool-hero-content {
  position: relative;
  z-index: 1;
}

.tool-icon-badge {
  width: 72px;
  height: 72px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.tool-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.tool-hero p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   SECTION TITLES
   ============================================================ */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
}

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

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.ht-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-primary {
  background: rgba(108,99,255,0.12);
  color: var(--accent-primary);
}

.badge-success {
  background: rgba(0,184,148,0.12);
  color: var(--success);
}

.badge-warning {
  background: rgba(253,203,110,0.15);
  color: #f0a500;
}

.badge-danger {
  background: rgba(225,112,85,0.12);
  color: var(--danger);
}

/* ============================================================
   TABLES
   ============================================================ */
.ht-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.ht-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.ht-table thead th {
  background: var(--bg-secondary);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.ht-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.ht-table tbody tr:hover {
  background: var(--bg-hover);
}

.ht-table tbody tr:nth-child(even) {
  background: var(--bg-secondary);
}

.ht-table tbody tr:nth-child(even):hover {
  background: var(--bg-hover);
}

.ht-table tbody td {
  padding: 12px 16px;
  color: var(--text-secondary);
}

/* ============================================================
   ALERTS & MESSAGES
   ============================================================ */
.ht-alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  border-left: 4px solid;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.alert-success {
  background: rgba(0,184,148,0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-warning {
  background: rgba(253,203,110,0.1);
  border-color: var(--warning);
  color: #d4880a;
}

.alert-danger {
  background: rgba(225,112,85,0.1);
  border-color: var(--danger);
  color: var(--danger);
}

.alert-info {
  background: rgba(9,132,227,0.1);
  border-color: var(--info);
  color: var(--info);
}

/* ============================================================
   TABS
   ============================================================ */
.ht-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 24px;
}

.ht-tab {
  flex: 1;
  padding: 10px 16px;
  border-radius: calc(var(--radius) - 4px);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  border: none;
  background: transparent;
}

.ht-tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.ht-tab.active {
  background: var(--bg-card);
  color: var(--accent-primary);
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}

/* ============================================================
   PROGRESS BARS
   ============================================================ */
.ht-progress {
  height: 8px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.ht-progress-bar {
  height: 100%;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

/* ============================================================
   DROPZONE
   ============================================================ */
.ht-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-secondary);
}

.ht-dropzone:hover,
.ht-dropzone.active {
  border-color: var(--accent-primary);
  background: rgba(108,99,255,0.05);
}

.ht-dropzone-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.ht-dropzone-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.ht-dropzone-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================================
   STAT CARDS
   ============================================================ */
.ht-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.ht-stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.ht-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ============================================================
   TOOLTIP
   ============================================================ */
.ht-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.ht-tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: help;
  margin-left: 6px;
}

.ht-tooltip-content {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  padding: 10px 14px;
  background: var(--text-primary);
  color: var(--text-inverse);
  font-size: 0.8rem;
  border-radius: var(--radius);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 100;
  box-shadow: var(--shadow-md);
  white-space: normal;
  text-align: left;
}

.ht-tooltip:hover .ht-tooltip-content {
  opacity: 1;
}

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

.faq-section .section-header {
  text-align: center;
  margin-bottom: 40px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  user-select: none;
  gap: 16px;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--accent-primary);
  color: white;
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  padding: 0 24px 20px;
  max-height: 400px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.ht-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 24px;
  margin-top: auto;
}

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

.ht-footer-brand .brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.ht-footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.ht-footer-title {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.ht-footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ht-footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.ht-footer-links a:hover {
  color: var(--accent-primary);
  padding-left: 4px;
}

.ht-footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  text-align: center;
  font-size: 0.83rem;
  color: var(--text-muted);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes countUp {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease forwards;
}

.animate-fade-in {
  animation: fadeIn 0.4s ease forwards;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease forwards;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }
.d-block { display: block; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.overflow-hidden { overflow: hidden; }
.relative { position: relative; }

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  .container,
  .container-sm { padding: 0 16px; }

  .ht-footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .ht-tabs {
    flex-wrap: wrap;
  }

  .tool-hero {
    padding: 32px 0 28px;
  }

  .ht-nav-links {
    display: none;
  }
}

@media (max-width: 480px) {
  .ht-footer-inner {
    grid-template-columns: 1fr;
  }

  .ht-btn-lg {
    padding: 14px 24px;
  }
}

/* ============================================================
   RELATED TOOLS SECTION
   ============================================================ */
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.related-tool-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition);
  font-size: 0.9rem;
  font-weight: 500;
}

.related-tool-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
  transform: translateY(-2px);
  color: var(--accent-primary);
}

.related-tool-card .tool-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* ============================================================
   LAST UPDATED
   ============================================================ */
.last-updated {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

/* ============================================================
   DARK MODE SPECIFIC OVERRIDES
   ============================================================ */
[data-theme="dark"] .ht-navbar {
  background: rgba(10, 14, 26, 0.92);
}

[data-theme="dark"] .ht-card {
  border-color: var(--border-color);
}

[data-theme="dark"] .ht-input,
[data-theme="dark"] .ht-select,
[data-theme="dark"] .ht-textarea {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme="dark"] .ht-table tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.02);
}