/* ============================================
   ULTIMATE BRAT GENERATOR - GLOBAL STYLES
   Google-Inspired Clean Design System
   ============================================ */

/* ============================================
   CSS VARIABLES - DESIGN TOKENS
   ============================================ */
:root {
  /* Colors - Google-inspired soft palette */
  --color-primary: #174ea6;
  /* Darker blue for accessibility (AAA on white) */
  --color-primary-dark: #0d3a82;
  --color-secondary: #34a853;
  /* Darker green */
  --color-accent: #fdd663;

  /* BRAT Colors */
  --color-brat-green: #8ace00;
  --color-brat-pink: #ff69b4;
  --color-brat-blue: #00bfff;
  --color-brat-black: #000000;

  /* Neutrals */
  --color-bg: #ffffff;
  --color-surface: #f8f9fa;
  --color-surface-hover: #f1f3f4;
  --color-border: #dadce0;
  /* Slightly darker for better definition */
  --color-text: #202124;
  --color-text-secondary: #474747;
  /* WCAG AA Compliant on white */
  --color-text-light: #5f6368;

  /* Spacing - 8px base */
  --space-xs: 0.5rem;
  /* 8px */
  --space-sm: 1rem;
  /* 16px */
  --space-md: 1.5rem;
  /* 24px */
  --space-lg: 2rem;
  /* 32px */
  --space-xl: 3rem;
  /* 48px */
  --space-2xl: 4rem;
  /* 64px */
  --space-3xl: 6rem;
  /* 96px */

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Poppins', sans-serif;

  --font-size-xs: 0.75rem;
  /* 12px */
  --font-size-sm: 0.875rem;
  /* 14px */
  --font-size-base: 1rem;
  /* 16px */
  --font-size-lg: 1.125rem;
  /* 18px */
  --font-size-xl: 1.25rem;
  /* 20px */
  --font-size-2xl: 1.5rem;
  /* 24px */
  --font-size-3xl: 2rem;
  /* 32px */
  --font-size-4xl: 2.5rem;
  /* 40px */
  --font-size-5xl: 3rem;
  /* 48px */

  /* Borders & Shadows */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Layout */
  --header-height: 70px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

ul {
  list-style: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

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

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

.nav-brand {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
}

.nav-brand:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-xs);
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-base);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  display: block;
}

.nav-toggle-icon::before {
  transform: translateY(-8px);
}

.nav-toggle-icon::after {
  transform: translateY(6px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-surface);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  margin-top: var(--header-height);
  padding: var(--space-3xl) 0;
  text-align: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f4f8 100%);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4rem;
  /* Increased from 3rem */
  font-weight: 900;
  /* Extra bold */
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: 1.1;
  text-shadow: 2px 2px 0px rgba(0, 0, 0, 0.1);
  /* Subtle 3D pop */
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.5rem;
  /* Increased visibility */
  font-weight: 500;
  color: var(--color-text);
  /* Darker text for better contrast */
  max-width: 800px;
  /* Wider for better flow */
  margin: 0 auto var(--space-xl);
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--space-3xl) 0;
}

.section-alt {
  background-color: var(--color-surface);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-md);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  background-color: transparent;
}

.btn-icon:hover,
.btn-icon.active {
  background-color: var(--color-surface);
  color: var(--color-primary);
}

.btn-size {
  flex: 1;
  padding: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  text-align: center;
}

.btn-size small {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.btn-size:hover {
  border-color: var(--color-primary);
}

.btn-size.active {
  border-color: var(--color-primary);
  background-color: rgba(138, 180, 248, 0.1);
  color: var(--color-primary);
}

/* ============================================
   GENERATOR LAYOUT
   ============================================ */
.generator-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.generator-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.generator-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  min-height: 400px;
}

.preview-canvas {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   FORM CONTROLS
   ============================================ */
.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.control-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.control-input {
  padding: 12px 16px;
  font-size: var(--font-size-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  transition: all var(--transition-fast);
}

.control-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(138, 180, 248, 0.1);
}

.control-range {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background-color: var(--color-border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.control-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.control-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.control-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background-color: var(--color-primary);
  cursor: pointer;
}

.control-color {
  width: 100%;
  height: 50px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.control-file {
  padding: 12px;
  font-size: var(--font-size-sm);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.control-file:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface);
}

.control-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.control-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

/* ============================================
   COLOR & BACKGROUND PRESETS
   ============================================ */
.color-presets,
.bg-presets,
.font-presets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
  gap: var(--space-sm);
}

.font-presets {
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
}

.color-preset,
.bg-preset {
  width: 100%;
  height: 50px;
  border: 3px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.font-preset {
  padding: 8px;
  font-size: 14px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.color-preset:hover,
.bg-preset:hover,
.font-preset:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.font-preset:hover {
  border-color: var(--color-primary);
}

.color-preset.active,
.bg-preset.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.font-preset.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ============================================
   ALIGNMENT BUTTONS
   ============================================ */
.alignment-buttons,
.size-buttons {
  display: flex;
  gap: var(--space-sm);
}

.download-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

/* ============================================


/* ============================================
   ABOUT SECTION
   ============================================ */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-xl) 0 var(--space-md);
}

.about-content p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.feature-list {
  margin: var(--space-md) 0;
  padding-left: var(--space-lg);
}

.feature-list li {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  list-style: disc;
}

.feature-list strong {
  color: var(--color-text);
}

/* ============================================
   STEPS CONTAINER (About Section)
   ============================================ */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.step {
  background-color: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
  transition: all var(--transition-base);
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step h4 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.step p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   FAQ PAGE STYLES
   ============================================ */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  transition: all var(--transition-base);
}

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

.faq-question {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

.faq-answer {
  color: var(--color-text-secondary);
}

.faq-answer p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer strong {
  color: var(--color-text);
  font-weight: 600;
}

.faq-list {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.faq-list li {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.8;
  list-style: disc;
}

.faq-list strong {
  color: var(--color-text);
}

.faq-cta {
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f4f8 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  margin-top: var(--space-2xl);
}

.faq-cta h3 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.faq-cta p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}


/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--color-text);
  color: white;
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.footer-text {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .generator-layout {
    grid-template-columns: 1fr;
  }

  .generator-preview {
    order: -1;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    flex-direction: column;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: var(--space-md);
    text-align: center;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .hero-title {
    font-size: 2.5rem;
    /* Scaled down for mobile */
  }

  .hero-subtitle {
    font-size: 1.125rem;
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .download-group {
    grid-template-columns: 1fr;
  }

  .size-buttons {
    flex-direction: column;
  }

  .steps-container {
    grid-template-columns: 1fr;
  }

  .faq-item {
    padding: var(--space-lg);
  }

  .faq-question {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .color-presets,
  .bg-presets {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   FAQ ACCORDION BEHAVIOR
   ============================================ */
details.faq-item>summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding-right: var(--space-xl);
}

details.faq-item>summary::-webkit-details-marker {
  display: none;
}

details.faq-item>summary::after {
  content: '+';
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  font-weight: 400;
  transition: transform var(--transition-base);
}

details.faq-item[open]>summary::after {
  transform: translateY(-50%) rotate(45deg);
}

details.faq-item[open] .faq-answer {
  animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}