/* PlugPing Marketing Site - Dark Professional Theme */
/* Colors from Flutter app: Primary #4CAF50, Dark BG #1C1B1F, Card #2D2D2D */

:root {
  --color-primary: #4CAF50;
  --color-primary-dark: #388E3C;
  --color-primary-light: #81C784;
  --color-bg-dark: #1C1B1F;
  --color-card: #2D2D2D;
  --color-card-hover: #3D3D3D;
  --color-text: #FFFFFF;
  --color-text-secondary: #B0B0B0;
  --color-text-muted: #808080;
  --color-border: #404040;
  --max-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.2s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-bg-dark);
  padding: var(--spacing-sm);
  z-index: 1000;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* Focus Styles */
:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

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

a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

main {
  flex: 1;
}

/* Header */
.site-header {
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-text);
}

.logo:hover {
  text-decoration: none;
}

.logo img {
  width: 40px;
  height: 40px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

/* Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-list a {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--color-text);
  background-color: rgba(76, 175, 80, 0.1);
  text-decoration: none;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    display: none;
    padding: var(--spacing-sm);
  }

  .main-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
  }

  .nav-list a {
    display: block;
    padding: var(--spacing-sm);
  }
}

/* Hero Section */
.hero {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--color-card) 0%, var(--color-bg-dark) 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-logo {
  width: 120px;
  height: 120px;
  margin-bottom: var(--spacing-lg);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Coming Soon Badge */
.coming-soon-badge {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-bg-dark);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
  text-decoration: none;
}

/* Cards */
.card {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  padding: var(--spacing-xl) 0;
}

.feature-card {
  text-align: center;
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: rgba(76, 175, 80, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 2rem;
}

.feature-card h3 {
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  color: var(--color-text-secondary);
}

/* Sections */
.section {
  padding: var(--spacing-xxl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-xs);
}

.section-header p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Page Header (for interior pages) */
.page-header {
  background-color: var(--color-card);
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin-bottom: var(--spacing-xs);
}

.page-header p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Steps (How It Works) */
.steps {
  counter-reset: step-counter;
}

.step {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.step:last-child {
  border-bottom: none;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.step-content h3 {
  margin-bottom: var(--spacing-xs);
}

.step-content p {
  color: var(--color-text-secondary);
}

@media (max-width: 480px) {
  .step {
    flex-direction: column;
    text-align: center;
  }

  .step-number {
    margin: 0 auto;
  }
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  padding: var(--spacing-sm) 0;
  cursor: pointer;
}

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

.faq-icon {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 0 var(--spacing-sm);
  color: var(--color-text-secondary);
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Contact */
.contact-info {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  margin: var(--spacing-lg) 0;
}

/* Privacy Policy */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
}

.privacy-section {
  margin-bottom: var(--spacing-xl);
}

.privacy-section h2 {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.privacy-section h3 {
  margin-top: var(--spacing-lg);
}

.privacy-section ul {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.privacy-section li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
}

.draft-notice {
  background-color: rgba(255, 193, 7, 0.1);
  border: 1px solid #FFC107;
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.draft-notice strong {
  color: #FFC107;
}

.review-needed {
  background-color: rgba(255, 152, 0, 0.1);
  border-left: 4px solid #FF9800;
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.review-needed strong {
  color: #FF9800;
}

/* Footer */
.site-footer {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
}

.footer-nav a {
  color: var(--color-text-secondary);
}

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

.footer-disclaimer {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  max-width: 600px;
}

.copyright {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Responsive Typography */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-tagline {
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-xl) 0;
  }

  .hero-logo {
    width: 80px;
    height: 80px;
  }

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