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

:root {
  --blue:        #3584e4;
  --blue-dark:   #1c71d8;
  --blue-light:  #99c1f1;
  --green:       #26a269;
  --bg:          #fafafa;
  --surface:     #ffffff;
  --surface2:    #f0f0f0;
  --border:      #deddda;
  --text:        #1a1a2e;
  --text-muted:  #5e5c64;
  --text-dim:    #9a9996;
  --header-bg:   #24273a;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 16px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --shadow-lg:   0 12px 40px rgba(0,0,0,.16), 0 4px 12px rgba(0,0,0,.10);
  --radius:      12px;
  --radius-lg:   20px;
  --radius-xl:   28px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Cantarell', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

header {
  background: var(--header-bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .3px;
}

.logo-icon {
  width: 28px;
  height: 28px;
  background: var(--blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg { width: 16px; height: 16px; fill: #fff; }

nav { display: flex; align-items: center; gap: 4px; }

nav a {
  color: rgba(255,255,255,.72);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
nav a:hover { background: rgba(255,255,255,.10); color: #fff; }

.hero {
  background: linear-gradient(180deg, var(--header-bg) 0%, #2e3150 60%, var(--bg) 100%);
  padding: 72px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(53,132,228,.25) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; max-width: 640px; margin: 0 auto; }

.app-icon {
  width: 128px;
  height: 128px;
  margin: 0 auto 28px;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,.4));
  animation: icon-drop .55s cubic-bezier(.34,1.56,.64,1) both;
}
@keyframes icon-drop {
  from { opacity: 0; transform: translateY(-20px) scale(.85); }
  to   { opacity: 1; transform: none; }
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.5px;
  line-height: 1.1;
  margin-bottom: 14px;
  animation: fade-up .5s .1s both;
}

.hero .tagline {
  font-size: 1.15rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 36px;
  animation: fade-up .5s .18s both;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  animation: fade-up .5s .26s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s, background .15s;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(53,132,228,.45);
}
.btn-primary:hover { background: var(--blue-dark); box-shadow: 0 4px 16px rgba(53,132,228,.5); }

.btn-secondary {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.2);
}
.btn-secondary:hover { background: rgba(255,255,255,.18); }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.flathub-badge {
  height: 48px;
  border-radius: 10px;
  transition: transform .15s, filter .15s;
  display: block;
}
.flathub-badge:hover { transform: translateY(-1px); filter: brightness(1.06); }

.section { padding: 72px 24px; }
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  text-align: center;
  text-transform: uppercase;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--blue);
  margin-bottom: 10px;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -.3px;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 48px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.screenshots-wrap {
  position: relative;
  overflow: hidden;
}

.screenshots-track {
  display: flex;
  gap: 20px;
  transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}

.screenshot-item {
  flex: 0 0 100%;
  max-width: 840px;
  min-width: 100%;
  margin: 0 auto;
}

.screenshot-frame {
  background: var(--header-bg);
  border-radius: var(--radius-xl);
  overflow: hidden; 
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,.05);
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.window-chrome {
  background: #2b2e3b;
  height: 36px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.dot-close { background: #ed6a5e; }
.dot-min   { background: #f4bf4f; }
.dot-max   { background: #61c554; }

.window-title {
  flex: 1;
  text-align: center;
  color: rgba(255,255,255,.4);
  font-size: 12px;
  margin-right: 36px;
}

.screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 520px;
  object-fit: cover;
  object-position: top;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background .2s, transform .2s;
  border: none;
}
.carousel-dot.active {
  background: var(--blue);
  transform: scale(1.35);
}

.carousel-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s, box-shadow .15s;
  box-shadow: var(--shadow-sm);
}
.carousel-btn:hover { background: var(--surface2); box-shadow: var(--shadow-md); }
.carousel-btn svg { width: 16px; height: 16px; stroke: var(--text); fill: none; }

.features-bg { background: var(--surface2); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 22px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.feature-card p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.install-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.install-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.install-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.install-card p {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 20px;
}

.code-block {
  background: #1e2030;
  border-radius: 10px;
  padding: 16px 18px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: .8rem;
  color: #cdd6f4;
  overflow-x: auto;
  line-height: 1.7;
  margin-bottom: 16px;
}

.code-block .comment { color: #6c7086; }
.code-block .cmd     { color: #89dceb; }
.code-block .flag    { color: #cba6f7; }

.community-band {
  background: linear-gradient(135deg, #1e2030 0%, #2a3050 100%);
  padding: 72px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.community-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(53,132,228,.15) 0%, transparent 70%);
  pointer-events: none;
}

.community-band h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
}

.community-band p {
  color: rgba(255,255,255,.6);
  font-size: 1rem;
  max-width: 480px;
  margin: 0 auto 32px;
  position: relative;
}

.community-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
}

footer {
  background: var(--header-bg);
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

footer .foot-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

footer a {
  color: rgba(255,255,255,.5);
  text-decoration: none;
  font-size: .88rem;
  transition: color .15s;
}
footer a:hover { color: rgba(255,255,255,.85); }

.foot-copy {
  font-size: .82rem;
  color: rgba(255,255,255,.3);
}

@media (max-width: 700px) {
  .hero h1 { font-size: 2.2rem; }
  .install-grid { grid-template-columns: 1fr; }
  nav { display: none; }
}