/* FriendsMap – dark blue + white theme */
:root {
  --primary-blue: #0078D4;
  --dark-blue: #0d3b66;
  --dark-blue-alt: #1a365d;
  --blue-hover: #2b6cb0;
  --bg-white: #FFFFFF;
  --bg-light: #F5F7FA;
  --text-primary: #202020;
  --text-secondary: #4a5568;
  --text-on-dark: #FFFFFF;
  --card-shadow: 0 2px 8px rgba(13, 59, 102, 0.08);
  --radius-btn: 12px;
  --radius-card: 16px;
  --font: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* Skip link – visually hidden until focused (keyboard/screen reader) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1001;
  padding: 0.75rem 1.25rem;
  background: var(--bg-white);
  color: var(--dark-blue);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-btn);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .skip-link:focus {
    transition: none;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-white);
}

/* Header – dark blue */
.site-header {
  background: var(--dark-blue);
  color: var(--text-on-dark);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.site-header .wrap {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 1rem;
  position: relative;
}

/* Hamburger toggle – hidden on desktop */
.nav-toggle {
  display: none;
  flex-shrink: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: none;
  background: transparent;
  color: var(--text-on-dark);
  cursor: pointer;
  border-radius: var(--radius-btn);
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
}

.nav-toggle:focus-visible {
  outline: 3px solid var(--bg-white);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-on-dark);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: contain;
}

.site-logo:focus-visible {
  outline: 3px solid var(--bg-white);
  outline-offset: 2px;
  border-radius: var(--radius-btn);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-btn);
  font-weight: 500;
  font-size: 0.95rem;
}

.site-nav a:hover {
  background: rgba(255,255,255,0.15);
  color: var(--text-on-dark);
}

.site-nav a:focus-visible {
  outline: 3px solid var(--bg-white);
  outline-offset: 2px;
  background: rgba(255,255,255,0.15);
}

/* Mobile: hamburger + collapsible nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    max-width: 100vw;
    display: none;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    padding: 0.5rem 1rem 1rem;
    background: var(--dark-blue-alt);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    border-radius: 0 0 var(--radius-card) var(--radius-card);
  }

  .site-header.is-nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-btn);
  }
}

/* Main content wrapper */
main {
  padding: 2rem 1.5rem;
}

main .wrap {
  max-width: 1200px;
  margin: 0 auto;
}

/* Hero – dark blue */
.hero {
  background: linear-gradient(135deg, var(--dark-blue) 0%, var(--dark-blue-alt) 100%);
  color: var(--text-on-dark);
  padding: 3rem 1.5rem 4rem;
  text-align: center;
  margin: 0 -1.5rem 2rem;
}

.hero .wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero .tagline {
  margin: 0;
  font-size: 1.1rem;
  opacity: 0.95;
}

/* Hero gallery – cute card + thumbnail strip + click to open lightbox */
.hero-gallery {
  margin-top: 1.75rem;
  display: flex;
  justify-content: center;
}

.hero-gallery-card {
  position: relative;
  background: linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow:
    0 25px 50px -12px rgba(13, 59, 102, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.8),
    0 0 0 2px rgba(0, 120, 212, 0.06);
  max-width: 400px;
  width: 100%;
}

.hero-gallery-badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--primary-blue);
  background: rgba(0, 120, 212, 0.08);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero-gallery-preview {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-gallery-arrow {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(180deg, #f8f9fc 0%, #eef1f7 100%);
  color: var(--dark-blue);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, background 0.25s ease;
}

.hero-gallery-arrow:hover {
  background: linear-gradient(180deg, var(--primary-blue) 0%, var(--blue-hover) 100%);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 120, 212, 0.4);
}

.hero-gallery-arrow:focus-visible {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

.hero-gallery-main {
  flex: 1;
  min-width: 0;
  border: none;
  padding: 0;
  border-radius: 18px;
  overflow: hidden;
  cursor: pointer;
  background: transparent;
  box-shadow: 0 10px 30px rgba(13, 59, 102, 0.12);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.hero-gallery-main:hover {
  transform: scale(1.03);
  box-shadow: 0 16px 40px rgba(13, 59, 102, 0.18);
}

.hero-gallery-main:active {
  transform: scale(0.98);
}

.hero-gallery-main:focus-visible {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

/* iPhone 17 Pro Max frame – gallery */
.phone-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19.5;
  border-radius: 2.25rem;
  overflow: hidden;
  background: #000;
  box-shadow:
    0 0 0 3px #1a1a1c,
    0 0 0 10px #2c2c2e,
    0 20px 60px rgba(0, 0, 0, 0.4);
}

.phone-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  pointer-events: none;
}

.hero-gallery-main .phone-frame {
  border-radius: 1.125rem;
}

.hero-gallery-thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(13, 59, 102, 0.06);
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.hero-gallery-thumbs::-webkit-scrollbar {
  height: 4px;
}

.hero-gallery-thumbs::-webkit-scrollbar-track {
  background: rgba(13, 59, 102, 0.04);
  border-radius: 4px;
}

.hero-gallery-thumbs::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--primary-blue), var(--blue-hover));
  border-radius: 4px;
}

.hero-gallery-thumb {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  background: #f0f2f7;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.2s ease, box-shadow 0.2s ease;
}

.hero-gallery-thumb:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 20px rgba(13, 59, 102, 0.12);
  border-color: rgba(0, 120, 212, 0.35);
}

.hero-gallery-thumb.is-active {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.2);
  transform: scale(1.08);
}

.hero-gallery-thumb:focus-visible {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

.hero-gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Lightbox – full-size view when user clicks a picture */
.hero-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.hero-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.hero-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 59, 102, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1002;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.95);
  color: var(--dark-blue);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.hero-lightbox-close:hover {
  background: white;
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.hero-lightbox-close:focus-visible,
.hero-lightbox-arrow:focus-visible {
  outline: 3px solid var(--dark-blue);
  outline-offset: 2px;
}

.hero-lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1002;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.95);
  color: var(--dark-blue);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.hero-lightbox-arrow:hover {
  background: white;
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.hero-lightbox-prev {
  left: 1.5rem;
}

.hero-lightbox-next {
  right: 1.5rem;
}

.hero-lightbox-content {
  position: relative;
  z-index: 1001;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.92);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
}

.hero-lightbox.is-open .hero-lightbox-content {
  transform: scale(1);
  opacity: 1;
}

/* iPhone 17 Pro Max frame in lightbox */
.phone-frame--lightbox {
  height: 85vh;
  max-height: 85vh;
  max-width: 90vw;
  width: auto;
  min-width: 0;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.hero-lightbox-content .phone-frame img {
  object-fit: cover;
}

.hero-lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1002;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.95);
  background: rgba(0, 0, 0, 0.35);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

/* Sections */
section {
  margin-bottom: 3rem;
}

section h2 {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
}

.section-intro {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 60ch;
}

/* How it works – steps */
.steps {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.step-card {
  background: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(13, 59, 102, 0.06);
}

.step-card .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary-blue);
  color: var(--text-on-dark);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: 0.75rem;
}

.step-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.step-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Features grid */
.features {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(13, 59, 102, 0.06);
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--primary-blue);
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Screenshot gallery */
.gallery {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.gallery img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  background: var(--bg-light);
  display: block;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  border: none;
  transition: background 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--text-on-dark);
}

.btn-primary:hover {
  background: var(--blue-hover);
  color: var(--text-on-dark);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--dark-blue);
  border: 2px solid var(--text-on-dark);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
  color: var(--text-on-dark);
}

.btn:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 2px;
}

/* Footer – dark blue */
.site-footer {
  background: var(--dark-blue);
  color: var(--text-on-dark);
  padding: 2rem 1.5rem;
  margin-top: 3rem;
}

.site-footer .wrap {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.site-footer nav {
  margin-bottom: 1rem;
}

.site-footer nav a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: 0 0.75rem;
  font-size: 0.9rem;
}

.site-footer nav a:hover {
  text-decoration: underline;
}

.site-footer nav a:focus-visible {
  outline: 3px solid var(--text-on-dark);
  outline-offset: 2px;
  border-radius: 4px;
}

.site-footer .copy {
  font-size: 0.875rem;
  opacity: 0.85;
  margin: 0;
}

/* Page content (about, privacy, terms, copyright) */
.page-content {
  background: var(--bg-white);
}

.page-content h1 {
  font-size: 1.75rem;
  color: var(--text-primary);
  margin: 0 0 1rem;
}

.page-content h2 {
  font-size: 1.25rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-primary);
}

.page-content p,
.page-content li {
  color: var(--text-secondary);
  margin: 0 0 0.75rem;
}

.page-content ul {
  padding-left: 1.5rem;
  margin: 0 0 1rem;
}

.page-content a {
  color: var(--primary-blue);
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

.page-content a:focus-visible {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Legal pages – no hero, just content */
.legal-page main {
  padding-top: 2rem;
}

/* Mobile menu (optional toggle for small screens) */
/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .hero-gallery-arrow,
  .hero-gallery-main,
  .hero-gallery-thumb,
  .hero-lightbox,
  .hero-lightbox-content,
  .hero-lightbox-close,
  .hero-lightbox-arrow {
    transition: none;
  }
  .hero-gallery-thumb:hover {
    transform: none;
  }
  .hero-gallery-thumb.is-active {
    transform: none;
  }
}

@media (max-width: 640px) {
  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }
  .hero {
    padding: 2rem 1rem 3rem;
  }
  .gallery {
    grid-template-columns: 1fr 1fr;
  }
}