/* ============================================================
   PixCarry — global stylesheet
   Mobile-first. Single file. No preprocessor.
   ============================================================ */

/* ---- 1. Design tokens ---- */
:root {
  --color-bg: #0f1530;
  --color-surface: #141C3F;
  --color-surface-2: #1e2a5e;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #f5f6fa;
  --color-text-muted: rgba(245, 246, 250, 0.65);
  --color-accent-teal: #14b8a6;
  --color-accent-amber: #f59e0b;

  --gradient-brand: linear-gradient(135deg, #141C3F 0%, #1e2a5e 50%, #14b8a6 100%);
  --gradient-card: linear-gradient(180deg, rgba(30, 42, 94, 0.6) 0%, rgba(20, 28, 63, 0.6) 100%);

  --fs-h1: 2.25rem;
  --fs-h2: 1.75rem;
  --fs-h3: 1.25rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.75rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --container-max: 1200px;
  --container-px: 16px;
  --section-py: 64px;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               "Inter", "Helvetica Neue", system-ui, sans-serif;
}

/* ---- 2. Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-teal); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 var(--space-4); font-weight: 700; }
h1 { font-size: var(--fs-h1); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.01em; }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 var(--space-4); }

/* ---- 3. Accessibility ---- */
.skip-link {
  position: absolute; top: -100px; left: var(--space-4);
  background: var(--color-accent-teal); color: var(--color-surface);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
  font-weight: 600;
}
.skip-link:focus { top: var(--space-4); z-index: 100; }
:focus-visible { outline: 2px solid var(--color-accent-teal); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---- 4. Layout primitives ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}
section { padding: var(--section-py) 0; }
.eyebrow {
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-teal);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

/* ---- 5. Nav ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 21, 48, 0.85);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo img { display: block; }
.nav-menu { position: relative; }
.nav-toggle {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle::-webkit-details-marker { display: none; }
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-menu[open] .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-menu[open] .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-menu[open] .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-links {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.nav-links a {
  color: var(--color-text);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 500;
}
.nav-links a:hover { background: var(--color-surface-2); text-decoration: none; }
.nav-cta { background: var(--color-accent-teal) !important; color: var(--color-surface) !important; font-weight: 600 !important; text-align: center; }

/* ---- 6. Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
  background: var(--color-bg);
}
.footer-inner { display: grid; gap: var(--space-12); }
.footer-brand p { color: var(--color-text-muted); margin-top: var(--space-3); max-width: 320px; }
.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-8);
}
.footer-cols h4 {
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.footer-cols ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-cols a { color: var(--color-text); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
}
.app-store-badge img { display: block; }

/* ---- 7. Hero ---- */
.hero {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
  background: radial-gradient(ellipse at top right, rgba(20, 184, 166, 0.12), transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(245, 158, 11, 0.08), transparent 50%),
              var(--color-bg);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}
.hero-copy h1 { max-width: 16ch; }
.hero-subhead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-8);
}
.hero-ctas { margin-bottom: var(--space-6); }
.app-store-badge { display: inline-block; transition: transform 0.2s, opacity 0.2s; }
.app-store-badge:hover { transform: translateY(-1px); text-decoration: none; opacity: 0.9; }
.hero-destinations {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin: 0;
}
.hero-visual { display: flex; justify-content: center; }
.hero-visual img { filter: drop-shadow(0 30px 60px rgba(20, 28, 63, 0.6)); }

/* ---- 8. Problem strip ---- */
.problem-strip {
  background: var(--gradient-brand);
  text-align: center;
  padding: var(--space-12) 0;
}
.problem-inner { max-width: 720px; }
.problem-strip h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
.problem-strip p { font-size: 1.125rem; color: rgba(255, 255, 255, 0.85); margin-bottom: 0; }

/* ---- 9. Section header ---- */
.section-header { text-align: center; max-width: 640px; margin: 0 auto var(--space-12); }

/* ---- 10. Features grid ---- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(20, 184, 166, 0.12);
  color: var(--color-accent-teal);
  margin-bottom: var(--space-4);
}
.feature-card h3 { font-size: 1.125rem; margin-bottom: var(--space-2); }
.feature-card p { color: var(--color-text-muted); margin: 0; font-size: 0.95rem; }

/* ---- 11. How it works ---- */
.how-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.how-steps li {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.how-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-teal);
  color: var(--color-surface);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}
.how-steps h3 { font-size: 1.125rem; margin-bottom: var(--space-2); }
.how-steps p { color: var(--color-text-muted); margin: 0; }

/* ---- 12. Destinations row ---- */
.destinations { padding: var(--space-12) 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.destinations-eyebrow {
  text-align: center;
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-8);
}
.destinations-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  justify-content: center;
  align-items: center;
}
.destinations-list li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  font-weight: 500;
  opacity: 0.85;
}
.destinations-list li img { color: var(--color-text); }

/* ---- 13. Pricing ---- */
.section-subhead { color: var(--color-text-muted); font-size: 1.05rem; }
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.pricing-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  position: relative;
}
.pricing-card.highlight {
  border-color: var(--color-accent-teal);
  background: linear-gradient(180deg, rgba(20, 184, 166, 0.08) 0%, rgba(20, 28, 63, 0.6) 100%);
}
.pricing-badge {
  position: absolute;
  top: -10px;
  right: var(--space-4);
  background: var(--color-accent-teal);
  color: var(--color-surface);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pricing-card h3 { font-size: 1.125rem; margin-bottom: var(--space-2); }
.pricing-price { display: flex; align-items: baseline; gap: var(--space-2); margin-bottom: var(--space-3); }
.price-amount { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.02em; }
.price-cadence { color: var(--color-text-muted); font-size: 0.95rem; }
.pricing-desc { color: var(--color-text-muted); font-size: 0.9rem; flex-grow: 1; }
.pricing-cta {
  display: inline-block;
  text-align: center;
  background: var(--color-surface-2);
  color: var(--color-text);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-top: var(--space-4);
  border: 1px solid var(--color-border);
}
.pricing-cta:hover { background: var(--color-accent-teal); color: var(--color-surface); text-decoration: none; }
.pricing-card.highlight .pricing-cta { background: var(--color-accent-teal); color: var(--color-surface); border-color: var(--color-accent-teal); }
.pricing-card.highlight .pricing-cta:hover { background: #0d9488; }

/* ---- 14. FAQ ---- */
.faq-container { max-width: 760px; }
.faq-list { display: flex; flex-direction: column; gap: var(--space-2); }
.faq-item {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-4) var(--space-6);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-accent-teal);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item summary:hover { background: var(--color-surface-2); }
.faq-answer { padding: 0 var(--space-6) var(--space-6); color: var(--color-text-muted); }
.faq-answer p { margin: 0; }

/* ---- 17. Responsive (≥768px) ---- */
@media (min-width: 768px) {
  :root {
    --container-px: 32px;
    --section-py: 96px;
    --fs-h1: 3.5rem;
    --fs-h2: 2.5rem;
  }
  .hero-inner { grid-template-columns: 1.1fr 1fr; gap: var(--space-16); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how-steps { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .nav-toggle { display: none; }
  .nav-menu { display: block; }
  .nav-links {
    position: static;
    flex-direction: row;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    gap: var(--space-6);
  }
  .nav-links a { padding: 0; }
  .nav-links a:hover { background: none; text-decoration: underline; text-underline-offset: 4px; }
  .nav-cta { background: var(--color-accent-teal) !important; color: var(--color-surface) !important; padding: 8px 16px !important; }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .how-steps { grid-template-columns: repeat(4, 1fr); }
  .pricing-grid { grid-template-columns: repeat(5, 1fr); }
}

/* ---- 15. Legal pages ---- */
.legal { padding: var(--space-16) 0; }
.legal-container { max-width: 720px; }
.legal h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: var(--space-2); }
.legal-updated { color: var(--color-text-muted); font-size: var(--fs-small); margin-bottom: var(--space-8); }
.legal h2 { font-size: 1.25rem; margin-top: var(--space-8); margin-bottom: var(--space-3); }
.legal ul { color: var(--color-text-muted); padding-left: var(--space-6); }
.legal li { margin-bottom: var(--space-2); }

/* ---- 16. Blog ---- */
.blog { padding: var(--space-16) 0; }
.blog-container { max-width: 760px; }
.blog h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); max-width: 24ch; }
.blog-intro { color: var(--color-text-muted); font-size: 1.05rem; margin-bottom: var(--space-8); }
.blog-list { list-style: none; padding: 0; margin: 0; }
.blog-empty {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  color: var(--color-text-muted);
  text-align: center;
}