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

:root {
  --black: #000000;
  --black-card: #111111;
  --white: #FFFFFF;
  --white-90: rgba(255, 255, 255, 0.9);
  --white-70: rgba(255, 255, 255, 0.7);
  --white-50: rgba(255, 255, 255, 0.5);
  --white-30: rgba(255, 255, 255, 0.3);
  --white-15: rgba(255, 255, 255, 0.15);
  --white-08: rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--white-90);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--black);
}

a {
  color: var(--white);
  text-decoration: none;
  transition: color 0.2s;
}

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

img, svg {
  max-width: 100%;
  height: auto;
}

/* ===== Skip to Content ===== */
.skip-to-content {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1.5rem;
  background: var(--white);
  color: var(--black);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}

.skip-to-content:focus {
  left: 0;
}

/* ===== Focus Indicators ===== */
:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ===== Header / Nav ===== */
.site-header {
  background: var(--black);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--white-08);
}

.nav-container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

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

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--white-50);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== Hero Section ===== */
.hero {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 4rem 1.5rem;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
}

.hero-mascot {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.5rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--white-50);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.hero p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--white-70);
  margin-bottom: 2rem;
}

.hero .story {
  text-align: left;
}

/* ===== App Preview Section ===== */
.app-preview {
  padding: 0 1.5rem 4rem;
  background: var(--black);
  text-align: center;
}

.app-preview-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.app-preview img {
  max-width: 280px;
  border-radius: 38px;
  border: 1px solid var(--white-08);
}

/* ===== Content Pages (Privacy, Terms, Support) ===== */
.page-header {
  background: var(--black);
  color: var(--white);
  padding: 3rem 1.5rem;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
}

.page-header p {
  color: var(--white-50);
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  flex: 1;
}

.content h2 {
  font-size: 1.35rem;
  color: var(--white);
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--white-15);
}

.content h2:first-child {
  margin-top: 0;
}

.content p {
  margin-bottom: 1rem;
  color: var(--white-70);
}

.content ul {
  margin: 0.5rem 0 1rem 1.5rem;
  color: var(--white-70);
}

.content li {
  margin-bottom: 0.5rem;
}

.content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== FAQ Section ===== */
.faq-item {
  margin-bottom: 1.5rem;
}

.faq-item h3 {
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.35rem;
}

.faq-item p {
  color: var(--white-50);
}

/* ===== Contact Card ===== */
.contact-card {
  background: var(--black-card);
  border: 1px solid var(--white-15);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  margin-top: 2rem;
}

.contact-card h2 {
  border: none;
  margin-top: 0;
  padding-bottom: 0;
}

.contact-card .email-link {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.6rem 1.5rem;
  background: var(--white-15);
  color: var(--white);
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--white-50);
  transition: background 0.2s;
}

.contact-card .email-link:hover {
  background: var(--white-30);
  color: var(--white);
}

/* ===== 404 Page ===== */
.error-page {
  text-align: center;
  padding: 6rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-page h1 {
  font-size: 5rem;
  color: var(--white-50);
  font-weight: 800;
}

.error-page p {
  font-size: 1.15rem;
  color: var(--white-50);
  margin: 1rem 0 2rem;
}

.error-page .btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--white-15);
  color: var(--white);
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid var(--white-50);
  transition: background 0.2s;
}

.error-page .btn:hover {
  background: var(--white-30);
  color: var(--white);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--black);
  color: var(--white-50);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  margin-top: auto;
  border-top: 1px solid var(--white-08);
}

.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--white-50);
  font-weight: 500;
}

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

.footer-trademark {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--white-50);
}

.footer-studio {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--white-50);
}

/* ===== Language Toggle ===== */
.lang-toggle {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border: 1.5px solid var(--white-50);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--white-50) !important;
  transition: background 0.2s, color 0.2s;
}

.lang-toggle:hover {
  background: var(--white);
  color: var(--black) !important;
  border-color: var(--white);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    background: var(--black);
    padding: 0.5rem 1.5rem;
    gap: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid var(--white-08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 0.6rem 0;
    text-align: center;
  }

  .footer-links a {
    display: inline-block;
    padding: 0.5rem 0;
    min-height: 44px;
    line-height: 44px;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

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

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

  .page-header h1 {
    font-size: 1.5rem;
  }

  .content {
    padding: 2rem 2rem;
  }

  .app-preview {
    padding: 0 1.5rem 3rem;
  }

  .app-preview img {
    max-width: 220px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-mascot {
    width: 90px;
    height: 90px;
  }

  .app-preview {
    padding: 0 1.5rem 2.5rem;
  }

  .app-preview img {
    max-width: 160px;
  }
}