:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --text: #f5f5f5;
  --text-muted: #999;
  --text-dim: #666;
  --border: #2a2a2a;
  --accent: #ffffff;
  --warning: #f5c518;
  --max-width: 1100px;
  --radius: 12px;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: 100px;
  transition: padding-top 0.3s ease;
}

body.navbar-scrolled {
  padding-top: 70px;
}

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

/* Navbar */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  z-index: 1000;
  background: var(--bg);
  box-shadow: 0 -4px 21px rgba(0, 0, 0, 0.25);
  transition: height 0.3s ease;
}

.navbar.scrolled {
  height: 70px;
}

.navbar-toolbar {
  height: 100%;
  width: 100%;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 1333px) {
  .navbar-toolbar {
    max-width: 1332px;
  }
}

@media (min-width: 1101px) and (max-width: 1332px) {
  .navbar-toolbar {
    max-width: 1100px;
  }
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.brand:hover {
  opacity: 0.9;
}

.brand-logo {
  display: block;
  width: 230px;
  height: 63px;
  object-fit: contain;
  transition: width 0.3s ease, height 0.3s ease;
}

.navbar.scrolled .brand-logo {
  width: 161px;
  height: 44px;
}

/* 701–1100px */
@media (min-width: 701px) and (max-width: 1100px) {
  .brand {
    width: 111px;
    height: 63px;
  }

  .brand-logo {
    visibility: hidden;
    width: 111px;
    height: 63px;
  }

  .navbar.scrolled .brand {
    height: 44px;
  }

  .navbar.scrolled .brand-logo {
    width: 78px;
    height: 44px;
  }
}

/* Desktop nav links */
.nav-desktop {
  display: none;
}

@media (min-width: 701px) {
  .nav-desktop {
    display: block;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin-right: 32px;
}

.nav-links li:last-child {
  margin-right: 0;
}

.nav-links a,
.nav-drawer-nav a {
  position: relative;
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.25em 0.5em;
  color: var(--text);
  transition: opacity 0.2s;
}

.nav-links a::after,
.nav-drawer-nav a::after {
  content: "";
  position: absolute;
  left: 0.5em;
  right: 0.5em;
  bottom: -3px;
  height: 0;
  background: currentColor;
  transition: height 0.2s ease;
}

.nav-links a:hover::after,
.nav-drawer-nav a:hover::after {
  height: 8px;
}

.nav-links a:hover,
.nav-drawer-nav a:hover {
  opacity: 1;
}

/* Mobile menu button */
.nav-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  background: none;
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}

.nav-menu-icon {
  width: 35px;
  height: 35px;
}

@media (max-width: 700px) {
  .nav-menu-btn {
    display: flex;
  }

  .brand-logo {
    width: 210px;
    height: 56px;
    visibility: visible;
  }

  .navbar.scrolled .brand-logo {
    width: 147px;
    height: 39px;
  }
}

/* Slide out drawer (≤700px) */
.nav-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1002;
  width: 300px;
  height: 100%;
  background: var(--bg);
  box-shadow: -4px 0 21px rgba(0, 0, 0, 0.25);
  padding: 24px 32px 32px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.nav-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  margin-bottom: 16px;
}

.drawer-logo-placeholder {
  width: 110px;
  height: 56px;
}

.nav-drawer-nav {
  display: flex;
  flex-direction: column;
}

.nav-drawer-nav a {
  font-size: 20px;
  margin: 16px 0;
}

/* Hero */

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem 3rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hero-meta .category {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-meta h1 {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero-meta .developer {
  font-size: 1rem;
  color: var(--text-muted);
}

.hero-meta .tagline {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-top: 0.5rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.price-badge {
  font-size: 1.25rem;
  font-weight: 600;
}

.btn-app-store {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--accent);
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.15s, opacity 0.15s;
}

.btn-app-store:hover {
  opacity: 1;
  transform: scale(1.02);
}

.btn-app-store svg {
  width: 20px;
  height: 20px;
}

.btn-app-store.coming-soon {
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: default;
}

.btn-app-store.coming-soon:hover {
  transform: none;
}

.warning-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: rgba(245, 197, 24, 0.08);
  border: 1px solid rgba(245, 197, 24, 0.25);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 520px;
}

.warning-banner strong {
  color: var(--warning);
}

/* Sections */

section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

section p {
  color: var(--text-muted);
  max-width: 640px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Screenshots */

.screenshot-grid {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshot-grid::-webkit-scrollbar {
  height: 4px;
}

.screenshot-grid::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.screenshot-frame {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: 220px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
}

.screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.device-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.device-tab {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.device-tab.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

/* At a glance */

.glance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  max-width: 640px;
}

.glance-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.glance-card .label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}

.glance-card .value {
  font-size: 1.1rem;
  font-weight: 600;
}

/* Details table */

.details-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.75rem 2rem;
  max-width: 560px;
}

.details-grid dt {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.details-grid dd {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Reviews placeholder */

.reviews-empty {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  max-width: 480px;
}

.reviews-empty p {
  margin: 0 auto;
}

.reviews-empty .stars {
  font-size: 1.5rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 2.5rem 2rem;
  text-align: center;
}

.site-footer .motto {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Privacy page */

.page-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.page-content h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.page-content .updated {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
}

.page-content h2 {
  font-size: 1.1rem;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

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

.page-content ul {
  padding-left: 1.25rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Responsive (content) */

@media (max-width: 700px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 2.5rem;
  }

  .hero-icon {
    margin: 0 auto;
  }

  .hero-meta .tagline,
  .warning-banner {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }
}