/* StepVenture website – shared styles (matches app: blue sky, dark night, green accent) */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
  --color-sky: #87CEEB;
  --color-sky-vibrant: #5DADE2;
  --color-night: #0D1B2A;
  --color-accent: #4CAF50;
  --color-gold: #FFD700;
  --color-orange: #FF9800;
  --color-surface: #FFFFFF;
  --color-surface-variant: #F5F5F5;
  --color-text: #1a1a1a;
  --color-text-on-dark: #f5f5f5;
  --color-text-muted: #555;
  --max-width: 900px;
  --font: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Animation keyframes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(76, 175, 80, 0.3);
  }
  50% {
    box-shadow: 0 4px 24px rgba(76, 175, 80, 0.6);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: #E3F5FF;
  min-height: 100vh;
}

/* Header */
.site-header {
  background-color: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text-on-dark);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.site-header .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  font-weight: 700;
  font-size: 1.35rem;
}

.site-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--color-text-on-dark);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.site-nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background-color: var(--color-accent);
  transition: width 0.3s ease, left 0.3s ease;
}

.site-nav a:hover {
  color: var(--color-accent);
}

.site-nav a:hover::after {
  width: 100%;
  left: 0;
}

.site-nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Main content */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
}

/* Hero / sections */
.hero {
  text-align: center;
  padding: 4rem 0 5rem;
  position: relative;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-sky-vibrant) 50%, rgba(135, 206, 235, 0.3) 100%);
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  animation: float 6s ease-in-out infinite;
}

.hero::before {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
  animation-delay: 0s;
}

.hero::after {
  width: 200px;
  height: 200px;
  bottom: -50px;
  right: -50px;
  animation-delay: 2s;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  margin: 0 0 0.5rem;
  background: linear-gradient(135deg, var(--color-night) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out;
}

.hero .tagline {
  font-size: 1.4rem;
  color: var(--color-night);
  font-weight: 600;
  margin: 0 0 1.5rem;
  max-width: 36em;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero > p {
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.section {
  margin-bottom: 3rem;
  animation: fadeInUp 0.8s ease-out;
}

.section h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-night);
  margin: 0 0 1.5rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
  border-radius: 2px;
}

.section-dark {
  background-color: var(--color-night);
  color: var(--color-text-on-dark);
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding: 2rem 1.5rem;
}

.section-dark h2 {
  color: var(--color-text-on-dark);
}

.section-sky {
  background-color: var(--color-sky);
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding: 2rem 1.5rem;
}

/* Splash strip (splash screen visual) */
.splash-strip {
  text-align: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(180deg, var(--color-sky) 0%, var(--color-surface-variant) 100%);
}

.splash-strip img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

/* Features list */
.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.features li {
  padding: 1.5rem;
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid rgba(245, 245, 245, 0.8);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-left: 4px solid var(--color-gold);
}

.features li:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

/* Download placeholders */
.download-placeholders {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  padding: 1.25rem 2rem;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-sky-vibrant) 100%);
  border: none;
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 4px 16px rgba(76, 175, 80, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
  animation: pulseGlow 3s ease-in-out infinite;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.download-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 24px rgba(76, 175, 80, 0.4);
}

.download-btn:hover::before {
  left: 100%;
}

.download-btn:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 4px;
}

/* Screenshots row */
.screenshots-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  justify-content: center;
  margin: 2rem 0;
}

.screenshots-row img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border: 8px solid white;
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease, rotate 0.3s ease;
  cursor: pointer;
}

.screenshots-row img:nth-child(1) {
  rotate: -2deg;
}

.screenshots-row img:nth-child(2) {
  rotate: 1deg;
}

.screenshots-row img:nth-child(3) {
  rotate: -1deg;
}

.screenshots-row img:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 16px 32px rgba(0,0,0,0.2);
  rotate: 0deg !important;
  z-index: 2;
}

.screenshots-caption {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
  font-style: italic;
}

/* Contact */
.contact-email {
  font-weight: 700;
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-surface-variant);
  border-radius: 8px;
  transition: background-color 0.3s ease;
}

.contact-email:hover {
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(93, 173, 226, 0.1) 100%);
}

.contact-email a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-email a:hover {
  color: var(--color-sky-vibrant);
  text-decoration: underline;
}

.contact-email a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Footer */
.site-footer {
  background-color: var(--color-night);
  color: var(--color-text-on-dark);
  padding: 2rem 1.5rem;
  margin-top: 4rem;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold), var(--color-orange), var(--color-sky-vibrant));
}

.site-footer .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.site-footer nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.site-footer a {
  color: var(--color-text-on-dark);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
}

.site-footer .copyright {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

/* Legal pages (privacy, terms, support) */
.legal-page {
  animation: fadeInUp 0.8s ease-out;
}

.legal-page h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-night);
  margin: 0 0 1.5rem;
  background: linear-gradient(135deg, var(--color-night) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.legal-page h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--color-night);
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--color-accent);
}

.legal-page h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--color-night);
}

.legal-page p, .legal-page ul {
  margin: 0 0 1rem;
  line-height: 1.7;
}

.legal-page ul {
  padding-left: 0;
  list-style: none;
}

.legal-page ul li {
  padding: 0.75rem 0 0.75rem 2.5rem;
  position: relative;
  background: rgba(245, 245, 245, 0.6);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.legal-page ul li:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.legal-page ul li::before {
  content: '✓';
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-accent);
  font-weight: bold;
  font-size: 1.2rem;
}

.legal-page a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.legal-page a:hover {
  color: var(--color-sky-vibrant);
  text-decoration: underline;
}

.legal-page a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.legal-page .updated {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* FAQ */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-list li {
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid rgba(245, 245, 245, 0.8);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.faq-list li:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.12);
  border-color: var(--color-accent);
}

.faq-list li:last-child {
  margin-bottom: 0;
}

.faq-list strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-night);
  font-size: 1.1rem;
  font-weight: 700;
}

/* 404 / error page */
.error-page {
  text-align: center;
  padding: 4rem 1.5rem;
  animation: fadeInUp 0.8s ease-out;
}

.error-page h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-night);
  margin: 0 0 1rem;
  background: linear-gradient(135deg, var(--color-night) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-page p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin: 0 0 2rem;
}

.error-page .cta-link {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-sky-vibrant) 100%);
  color: white;
  text-decoration: none;
  font-weight: 700;
  border-radius: 50px;
  box-shadow: 0 4px 16px rgba(76, 175, 80, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.error-page .cta-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(76, 175, 80, 0.4);
}

.error-page .cta-link:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 4px;
}

/* Responsive design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .tagline {
    font-size: 1.2rem;
  }

  .hero {
    padding: 3rem 1.5rem 4rem;
  }

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

  .screenshots-row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .screenshots-row img {
    max-width: 100%;
  }

  .site-nav {
    width: 100%;
    justify-content: center;
  }

  .download-btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1.1rem;
  }

  .section h2 {
    font-size: 1.5rem;
  }

  .legal-page h1 {
    font-size: 1.75rem;
  }
}