/**
 * mycoyouco Landing Page - Main Styles
 * Mobile-first responsive design
 */

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-on-surface);
  background-color: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

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

a:hover {
  color: var(--color-secondary);
}

/* ============================================
   Accessibility
   ============================================ */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-2) var(--space-4);
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

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

/* Screen Reader Only */
.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;
}

/* Focus Visible */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: var(--focus-ring-offset);
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }
}

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

/* ============================================
   Typography
   ============================================ */
.heading-1 {
  font-family: var(--font-family-display);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

@media (min-width: 768px) {
  .heading-1 {
    font-size: var(--font-size-4xl);
  }
}

@media (min-width: 1024px) {
  .heading-1 {
    font-size: var(--font-size-5xl);
  }
}

.heading-2 {
  font-family: var(--font-family-display);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

@media (min-width: 768px) {
  .heading-2 {
    font-size: var(--font-size-3xl);
  }
}

.heading-3 {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
}

@media (min-width: 768px) {
  .heading-3 {
    font-size: var(--font-size-2xl);
  }
}

.text-large {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

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

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

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

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn:focus-visible {
  box-shadow: var(--focus-ring);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow-md);
}

.btn-secondary {
  background-color: var(--color-surface-container);
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline-variant);
}

.btn-secondary:hover {
  background-color: var(--color-surface-container-high);
  border-color: var(--color-outline);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: rgba(254, 251, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-outline-variant);
  transition: all var(--transition-normal);
}

.nav.scrolled {
  background-color: rgba(254, 251, 255, 0.95);
  box-shadow: 0 2px 8px var(--color-shadow);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--space-4);
  max-width: var(--container-xl);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .nav-container {
    height: 72px;
    padding: 0 var(--space-6);
  }
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-on-surface);
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  color: var(--color-on-surface-variant);
  font-weight: var(--font-weight-medium);
  transition: var(--transition-colors);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.nav-lang-toggle:hover {
  background-color: var(--color-surface-container-high);
}

.nav-lang-toggle .active {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

/* Mobile Menu Toggle */
.nav-mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .nav-mobile-toggle {
    display: none;
  }
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-on-surface);
  position: relative;
  transition: var(--transition-fast);
}

.nav-mobile-toggle span::before,
.nav-mobile-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-on-surface);
  transition: var(--transition-fast);
}

.nav-mobile-toggle span::before {
  top: -7px;
}

.nav-mobile-toggle span::after {
  top: 7px;
}

/* Mobile Menu Open State */
.nav-mobile-toggle.open span {
  background-color: transparent;
}

.nav-mobile-toggle.open span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-mobile-toggle.open span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile Menu */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-surface);
  padding: var(--space-6);
  z-index: var(--z-modal);
}

.nav-mobile-menu.open {
  display: block;
}

@media (min-width: 1024px) {
  .nav-mobile-menu {
    display: none !important;
  }
}

.nav-mobile-menu ul {
  list-style: none;
}

.nav-mobile-menu li {
  border-bottom: 1px solid var(--color-outline-variant);
}

.nav-mobile-menu a {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--font-size-lg);
  color: var(--color-on-surface);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero);
  opacity: 0.1;
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary-container);
  color: var(--color-on-primary-container);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-6);
}

.hero-title {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.hero-stores {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .hero-stores {
    flex-direction: row;
    justify-content: center;
  }
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ============================================
   Entity Cards
   ============================================ */
.entities-section {
  background-color: var(--color-surface-container-low);
}

.entities-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

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

@media (min-width: 1024px) {
  .entities-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-4);
  }
}

.entity-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: all var(--transition-normal);
}

.entity-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--color-shadow-md);
}

.entity-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.entity-card--user .entity-icon {
  background-color: var(--color-user-light);
}

.entity-card--community .entity-icon {
  background-color: var(--color-community-light);
}

.entity-card--trainer .entity-icon {
  background-color: var(--color-trainer-light);
}

.entity-card--company .entity-icon {
  background-color: var(--color-company-light);
}

.entity-card--location .entity-icon {
  background-color: var(--color-location-light);
}

.entity-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.entity-card--user .entity-title {
  color: var(--color-user);
}

.entity-card--community .entity-title {
  color: var(--color-community);
}

.entity-card--trainer .entity-title {
  color: var(--color-trainer);
}

.entity-card--company .entity-title {
  color: var(--color-company);
}

.entity-card--location .entity-title {
  color: var(--color-location);
}

.entity-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.entity-features {
  list-style: none;
  text-align: left;
  font-size: var(--font-size-sm);
}

.entity-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-1) 0;
}

.entity-features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
}

/* ============================================
   Features Section
   ============================================ */
.features-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}

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

.feature-card {
  text-align: center;
  padding: var(--space-6);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: var(--gradient-primary-soft);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.feature-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--color-on-surface);
}

.feature-description {
  color: var(--color-on-surface-variant);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   Diagram Section
   ============================================ */
.diagram-section {
  background-color: var(--color-surface-container-low);
}

.diagram-container {
  max-width: 800px;
  margin: 0 auto;
}

.diagram-svg {
  width: 100%;
  height: auto;
}

/* ============================================
   Examples Section (Carousel)
   ============================================ */
.examples-carousel {
  display: flex;
  gap: var(--space-6);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-4) 0;
  margin: 0 calc(var(--space-4) * -1);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.examples-carousel::-webkit-scrollbar {
  display: none;
}

.example-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: 0 2px 8px var(--color-shadow);
}

@media (min-width: 768px) {
  .example-card {
    flex: 0 0 320px;
  }
}

.example-persona {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.example-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.example-name {
  font-weight: var(--font-weight-semibold);
}

.example-role {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
}

.example-text {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-section {
  background-color: var(--color-surface-container-low);
}

.pricing-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pricing-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.pricing-card--highlight {
  border: 2px solid var(--color-primary);
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--color-on-primary);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.pricing-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.pricing-price span {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--color-on-surface-variant);
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-6);
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--font-size-sm);
}

.pricing-features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
}

.pricing-note {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
  margin-top: var(--space-4);
}

.pricing-note a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  background: var(--gradient-primary);
  color: var(--color-on-primary);
  text-align: center;
}

.cta-title {
  margin-bottom: var(--space-4);
}

.cta-text {
  opacity: 0.9;
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

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

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

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

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-surface-container-highest);
  padding: var(--space-12) 0 var(--space-6);
}

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

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-on-surface);
  margin-bottom: var(--space-4);
}

.footer-logo img {
  height: 32px;
  width: auto;
}

.footer-tagline {
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.footer-stores {
  display: flex;
  gap: var(--space-3);
}

.footer-column h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-on-surface);
  margin-bottom: var(--space-4);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--space-2);
}

.footer-column a {
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  transition: var(--transition-colors);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-outline-variant);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
}

.footer-lang-toggle {
  display: flex;
  gap: var(--space-2);
}

.footer-lang-toggle button {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-sm);
  background-color: transparent;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-colors);
}

.footer-lang-toggle button:hover {
  background-color: var(--color-surface-container);
}

.footer-lang-toggle button.active {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* ============================================
   App Store Badges
   ============================================ */
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: #000;
  color: #fff;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: var(--transition-normal);
}

.store-badge:hover {
  opacity: 0.9;
  color: #fff;
}

.store-badge svg {
  width: 24px;
  height: 24px;
}

.store-badge-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.store-badge-label {
  font-size: 10px;
  opacity: 0.8;
}

.store-badge-store {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-header .heading-2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-lg);
}