/*
 * WebsiteTool.org - Award-Winning Design System
 * Premium, sophisticated, engaging visual experience
 * Design Level: Apple / Stripe / Linear
 */

/* ========== CSS Variables ========== */
:root {
  /* Premium Color Palette - Bright & Sophisticated */
  --color-primary: #161032;        /* Deep navy - primary dark */
  --color-primary-dark: #0A0618;   /* Even darker navy */
  --color-primary-light: #2A1F4A;  /* Lighter navy */

  /* Accent Colors */
  --color-accent-yellow: #FAFF81;  /* Bright lime yellow */
  --color-accent-amber: #FFC53A;   /* Golden amber */
  --color-accent-orange: #E06D06;  /* Bright orange */
  --color-accent-brown: #B26700;   /* Dark golden brown */

  /* Category Colors - Using palette */
  --color-seo: #FFC53A;            /* Amber for SEO */
  --color-seo-light: #FFD666;
  --color-image: #E06D06;          /* Orange for Image */
  --color-image-light: #FF8520;
  --color-code: #FAFF81;           /* Yellow for Code */
  --color-code-light: #FCFFA6;
  --color-content: #B26700;        /* Brown for Content */
  --color-content-light: #CC7A00;

  /* Neutrals - Premium Gray Scale */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;

  /* Spacing Scale - Exponential for dramatic hierarchy */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* Shadows - Layered depth */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max: 1280px;
  --container-padding: var(--space-6);
}

/* Dark Mode */
[data-theme="dark"] {
  --color-gray-50: #0F172A;
  --color-gray-100: #1E293B;
  --color-gray-200: #334155;
  --color-gray-300: #475569;
  --color-gray-400: #64748B;
  --color-gray-500: #94A3B8;
  --color-gray-600: #CBD5E1;
  --color-gray-700: #E2E8F0;
  --color-gray-800: #F1F5F9;
  --color-gray-900: #F8FAFC;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  background: #FAFAFA;
  color: var(--color-gray-900);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw + 1rem, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw + 0.5rem, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw + 0.5rem, 1.5rem); }

p { line-height: 1.7; color: var(--color-gray-600); }

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

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

/* ========== Container ========== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ========== Theme Toggle (Minimal & Elegant) ========== */
.theme-toggle {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-gray-200);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.theme-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-gray-700);
}

#themeText {
  display: none;
}

[data-theme="dark"] .theme-toggle {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--color-gray-700);
}

[data-theme="dark"] .theme-toggle svg {
  color: var(--color-gray-300);
}

/* ========== Header - Minimal & Bold ========== */
/* ========== Header - Sleek & Professional ========== */
.site-header {
  background: var(--color-primary);
  padding: var(--space-8) 0;
  position: relative;
  border-bottom: 3px solid var(--color-accent-amber);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo/Brand Section */
.site-title {
  color: white;
  margin: 0;
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  letter-spacing: -0.04em;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-title::before {
  content: '⚡';
  font-size: 1.5em;
  filter: drop-shadow(0 2px 4px rgba(250, 255, 129, 0.3));
}

/* Navigation & Tagline Section */
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-tagline {
  color: var(--color-accent-yellow);
  font-size: clamp(0.875rem, 1.5vw, 1.125rem);
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  font-size: 0.875rem;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-cta {
  padding: var(--space-3) var(--space-6);
  background: var(--color-accent-amber);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px rgba(255, 197, 58, 0.3);
}

.header-cta:hover {
  background: var(--color-accent-yellow);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 197, 58, 0.4);
}

/* Stats Badge */
.stats-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.stats-badge-number {
  color: var(--color-accent-yellow);
  font-weight: 800;
}

/* ========== Hero Section - Premium & Engaging ========== */
.hero-section {
  padding: var(--space-20) 0 var(--space-16);
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
  position: relative;
}

[data-theme="dark"] .hero-section {
  background: linear-gradient(180deg, var(--color-gray-100) 0%, var(--color-gray-50) 100%);
}

/* ========== Search Bar - Premium Design ========== */
.search-container {
  max-width: 680px;
  margin: 0 auto var(--space-12);
  position: relative;
}

.search-bar {
  width: 100%;
  padding: var(--space-6) var(--space-8) var(--space-6) var(--space-12);
  font-size: 1.125rem;
  border: 3px solid transparent;
  border-radius: var(--radius-2xl);
  background: white;
  color: var(--color-primary);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.search-bar:focus {
  outline: none;
  border-color: var(--color-accent-amber);
  box-shadow: var(--shadow-2xl), 0 0 0 4px rgba(255, 197, 58, 0.15);
  transform: translateY(-3px);
}

.search-bar::placeholder {
  color: var(--color-gray-400);
  font-weight: 400;
}

.search-icon {
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  color: var(--color-accent-amber);
  pointer-events: none;
  transition: all var(--transition-base);
}

.search-bar:focus ~ .search-icon {
  color: var(--color-accent-orange);
  transform: translateY(-50%) scale(1.1);
}

[data-theme="dark"] .search-bar {
  background: var(--color-gray-200);
  border-color: var(--color-gray-300);
  color: var(--color-gray-900);
}

/* ========== Category Pills - Premium & Sophisticated ========== */
.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-16);
}

.category-pill {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-gray-200);
  background: white;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.category-pill::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-accent-yellow) 0%, var(--color-accent-amber) 100%);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 0;
}

.category-pill:hover {
  border-color: var(--color-accent-amber);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.category-pill:hover::before {
  opacity: 0.08;
}

.category-pill svg {
  width: 18px;
  height: 18px;
  z-index: 1;
  position: relative;
}

.category-pill span {
  z-index: 1;
  position: relative;
}

.pill-count {
  background: rgba(0, 0, 0, 0.06);
  color: var(--color-primary);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  min-width: 24px;
  text-align: center;
}

/* Active pill states with bright colors */
.category-pill.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a1440 100%);
  border-color: var(--color-accent-amber);
  color: white;
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.category-pill.active::before {
  opacity: 0;
}

.category-pill.pill-all.active {
  background: linear-gradient(135deg, var(--color-accent-amber) 0%, var(--color-accent-orange) 100%);
  color: var(--color-primary);
}

.category-pill.pill-seo.active {
  background: linear-gradient(135deg, var(--color-seo) 0%, var(--color-seo-light) 100%);
  border-color: var(--color-seo);
  color: var(--color-primary);
}

.category-pill.pill-image.active {
  background: linear-gradient(135deg, var(--color-image) 0%, var(--color-image-light) 100%);
  border-color: var(--color-image);
  color: white;
}

.category-pill.pill-code.active {
  background: linear-gradient(135deg, var(--color-code) 0%, var(--color-code-light) 100%);
  border-color: var(--color-code);
  color: var(--color-primary);
}

.category-pill.pill-content.active {
  background: linear-gradient(135deg, var(--color-content) 0%, var(--color-content-light) 100%);
  border-color: var(--color-content);
  color: white;
}

.category-pill.active .pill-count {
  background: rgba(255, 255, 255, 0.3);
  color: currentColor;
}

/* ========== Tool Grid - Sectioned Column Layout ========== */
.main-content {
  padding: 0 0 var(--space-24);
  background: var(--color-white);
}

[data-theme="dark"] .main-content {
  background: var(--color-gray-50);
}

/* Tool Section Wrapper */
.tool-section {
  margin-bottom: var(--space-20);
  padding-top: var(--space-12);
  border-top: 2px solid var(--color-gray-200);
  counter-reset: tool-counter;
}

.tool-section:first-child {
  border-top: none;
  padding-top: 0;
}

/* Section Headers */
.section-header {
  margin-bottom: var(--space-8);
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  margin: 0;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--section-color), var(--section-color-light));
}

.section-count {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Section color variants */
.tool-section.section-seo {
  --section-color: var(--color-seo);
  --section-color-light: var(--color-seo-light);
}

.tool-section.section-image {
  --section-color: var(--color-image);
  --section-color-light: var(--color-image-light);
}

.tool-section.section-code {
  --section-color: var(--color-code);
  --section-color-light: var(--color-code-light);
}

.tool-section.section-content {
  --section-color: var(--color-content);
  --section-color-light: var(--color-content-light);
}

/* Tool Grid within Section */
.tool-grid-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 640px) {
  .tool-grid-bento {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .tool-grid-bento {
    grid-template-columns: repeat(3, 1fr);
    gap: 0 var(--space-10);
  }
}

@media (min-width: 1280px) {
  .section-seo .tool-grid-bento {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-image .tool-grid-bento {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-code .tool-grid-bento {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-content .tool-grid-bento {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========== Tool Cards - Mechanistic Typography Design ========== */
.tool-card {
  position: relative;
  background: transparent;
  padding: var(--space-6) var(--space-6) var(--space-6) var(--space-8);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  overflow: visible;
  counter-increment: tool-counter;
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

/* Stagger animation for visual interest */
.tool-card:nth-child(1) { animation-delay: 0.05s; }
.tool-card:nth-child(2) { animation-delay: 0.1s; }
.tool-card:nth-child(3) { animation-delay: 0.15s; }
.tool-card:nth-child(4) { animation-delay: 0.2s; }
.tool-card:nth-child(5) { animation-delay: 0.25s; }
.tool-card:nth-child(6) { animation-delay: 0.3s; }
.tool-card:nth-child(n+7) { animation-delay: 0.35s; }

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

/* Left accent bar - subtle category indicator */
.tool-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: var(--space-8);
  bottom: var(--space-8);
  width: 3px;
  background: var(--card-color);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scaleY(0.3);
  transform-origin: center;
}

/* Counter number - mechanistic detail */
.tool-card::after {
  content: counter(tool-counter, decimal-leading-zero);
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-gray-100);
  line-height: 1;
  letter-spacing: -0.05em;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}

.tool-card:hover::before {
  opacity: 1;
  transform: scaleY(1);
  width: 4px;
}

.tool-card:hover::after {
  color: var(--card-color);
  opacity: 0.15;
  transform: scale(1.1);
}

.tool-card:hover {
  padding-left: var(--space-12);
  border-bottom-color: var(--card-color);
}

/* Category-specific colors */
.tool-card.category-seo {
  --card-color: var(--color-seo);
  --card-color-light: var(--color-seo-light);
}

.tool-card.category-image {
  --card-color: var(--color-image);
  --card-color-light: var(--color-image-light);
}

.tool-card.category-code {
  --card-color: var(--color-code);
  --card-color-light: var(--color-code-light);
}

.tool-card.category-content {
  --card-color: var(--color-content);
  --card-color-light: var(--color-content-light);
}

[data-theme="dark"] .tool-card {
  background: transparent;
  border-bottom-color: var(--color-gray-700);
}

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

[data-theme="dark"] .tool-card::after {
  color: var(--color-gray-800);
}

[data-theme="dark"] .tool-card:hover::after {
  color: var(--card-color);
}

/* Card Header - Editorial Layout */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-3);
  position: relative;
  z-index: 1;
}

/* Minimal icon - no box */
.tool-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  flex-shrink: 0;
}

.tool-icon svg {
  width: 32px;
  height: 32px;
  color: var(--card-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  filter: none;
}

.tool-card:hover .tool-icon svg {
  transform: scale(1.1) rotate(-5deg);
  color: var(--card-color);
  opacity: 0.9;
}

/* Category badge - text only */
.category-badge {
  padding: 0;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--card-color);
  background: transparent;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-badge::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--card-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover .category-badge::after {
  transform: scaleX(1);
}

/* Card Content - Mechanistic Typography */
.tool-card h3 {
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
  line-height: 1.25;
  position: relative;
  z-index: 1;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card h3::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--card-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover h3 {
  color: var(--card-color);
  transform: translateX(6px);
}

.tool-card:hover h3::after {
  transform: scaleX(1);
}

[data-theme="dark"] .tool-card h3 {
  color: var(--color-gray-900);
}

.tool-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-gray-600);
  margin: 0;
  flex-grow: 1;
  position: relative;
  z-index: 1;
  max-width: 65ch;
  transition: color 0.3s;
}

.tool-card:hover p {
  color: var(--color-gray-700);
}

[data-theme="dark"] .tool-card p {
  color: var(--color-gray-500);
}

/* ========== Info Section - Clean & Modern ========== */
.info-section {
  margin-top: var(--space-20);
  padding-top: var(--space-16);
  border-top: 1px solid var(--color-gray-200);
}

.info-section h2 {
  text-align: center;
  margin-bottom: var(--space-12);
  color: var(--color-gray-900);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .info-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.info-card {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.info-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
  color: var(--color-gray-900);
}

.info-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}

[data-theme="dark"] .info-card {
  background: var(--color-gray-100);
  border-color: var(--color-gray-200);
}

/* ========== Footer - Elegant & Organized ========== */
.site-footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-gray-800);
}

[data-theme="dark"] .site-footer {
  background: var(--color-gray-900);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-section__title {
  color: var(--color-gray-200);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-5);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-gray-200);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-3);
}

.footer-meta {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.separator {
  margin: 0 var(--space-2);
}

/* ========== Utilities ========== */
.hidden {
  display: none !important;
}

/* ========== Accessibility ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* ========== Responsive Adjustments ========== */
/* ========== Responsive - Tablet ========== */
@media (max-width: 960px) {
  .header-nav {
    gap: var(--space-4);
  }

  .site-tagline {
    display: none;
  }

  .tool-card::after {
    font-size: 1.75rem;
  }

  .tool-card h3 {
    font-size: 1.5rem;
  }

  .tool-card p {
    font-size: 0.875rem;
  }
}

/* ========== Responsive - Mobile ========== */
@media (max-width: 640px) {
  .theme-toggle {
    top: var(--space-4);
    right: var(--space-4);
  }

  .site-header {
    padding: var(--space-6) 0;
  }

  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .site-title {
    font-size: 1.5rem;
  }

  .header-nav {
    width: 100%;
    justify-content: flex-end;
  }

  .header-actions {
    gap: var(--space-3);
  }

  .stats-badge {
    font-size: 0.8125rem;
    padding: var(--space-2) var(--space-3);
  }

  .hero-section {
    padding: var(--space-12) 0 var(--space-8);
  }

  .category-pills {
    gap: var(--space-2);
  }

  .category-pill {
    font-size: 0.875rem;
    padding: var(--space-2) var(--space-4);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-count {
    font-size: 0.75rem;
  }

  .tool-card {
    padding: var(--space-5) var(--space-4);
  }

  .tool-card::after {
    font-size: 1.5rem;
    top: var(--space-3);
    right: var(--space-4);
  }

  .tool-card h3 {
    font-size: 1.25rem;
    max-width: calc(100% - 2.5rem);
  }

  .tool-card:hover {
    padding-left: var(--space-8);
  }

  .tool-icon {
    width: 28px;
    height: 28px;
  }

  .tool-icon svg {
    width: 28px;
    height: 28px;
  }
}

/* ========== Print Styles ========== */
@media print {
  .theme-toggle,
  .search-container,
  .category-pills {
    display: none;
  }

  .tool-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}