:root {
  --bg-main: #050509;
  --bg-elevated: #0c0c14;
  --bg-card: #11111b;
  --accent: #6c5ce7;
  --accent-soft: rgba(108, 92, 231, 0.35);
  --accent-neon: #00f5ff;
  --text-main: #f5f5ff;
  --text-muted: #a0a0b8;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.65);
  --blur-strong: 18px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top, #151528 0, #050509 55%);
  color: var(--text-main);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 32px;
  background: rgba(5, 5, 12, 0.85);
  backdrop-filter: blur(var(--blur-strong));
  border-bottom: 1px solid var(--border-subtle);
  z-index: 40;
}

.logo-link { text-decoration: none; cursor: pointer; }

/* Logo: grande, spesso, cliccabile, ma normale senza underline e senza cambiare colore del primo pezzo */
.logo {
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: none;
  font-size: 2.2rem;
  color: var(--text-main); /* mantiene il colore del primo pezzo 'yx.' */
  display: inline-block;
  padding: 2px 6px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: transform 0.12s ease, text-shadow 0.12s ease;
  background: none; /* rimuove gradient text */
  -webkit-background-clip: unset;
  background-clip: unset;
  -webkit-text-fill-color: initial;
}

/* Mantieni il colore accent solo sullo span 'kxi' */
.logo span {
  color: var(--accent);
  font-weight: 900;
  background: none;
  -webkit-text-fill-color: initial;
}

/* Rimuove underline e barra decorativa: nessun ::after */
.logo::after { display: none; content: none; }

/* Hover feedback molto sottile senza cambiare colore */
.logo-link:hover .logo {
  transform: translateY(-2px) scale(1.03);
  text-shadow: 0 6px 18px rgba(0,0,0,0.18);
}

/* NAV */
.nav a {
  margin-left: 18px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover { color: var(--text-main); }

/* MAIN / HERO */
main {
  flex: 1;
  padding: 32px 24px;
  max-width: 1100px;
  margin: auto;
}

.hero {
  padding: 32px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(10,10,20,0.96), rgba(5,5,12,0.96));
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-subtle);
}

.hero h1 { margin: 0 0 10px; }
.hero p { color: var(--text-muted); }

/* THEMES GRID */
.themes-section { margin-top: 24px; }
.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.theme-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 14px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

/* PREVIEW FAKE WINDOW */
.theme-preview { margin-bottom: 12px; }

.preview-fake-window {
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.preview-fake-window.neon {
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.18);
}

.preview-fake-window.glass {
  backdrop-filter: blur(14px);
  background: rgba(255,255,255,0.02);
}

.preview-header {
  display: flex;
  gap: 6px;
  padding: 6px 10px;
  background: rgba(20,20,40,0.95);
}

.preview-header span {
  width: 8px;
  height: 8px;
  background: rgba(255,255,255,0.12);
  border-radius: 50%;
}

.preview-body {
  display: flex;
  height: 90px;
}

.preview-sidebar {
  width: 22%;
  background: rgba(20,20,40,0.95);
}

.preview-content {
  flex: 1;
  background: linear-gradient(90deg, rgba(108,92,231,0.12), rgba(0,0,0,0.02));
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text-main);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.12);
  font-weight: 600;
}

.btn:hover { border-color: rgba(255,255,255,0.3); }

.btn.secondary {
  background: transparent;
  border-color: rgba(255,255,255,0.18);
}

/* INFO SECTIONS */
.info-section {
  margin-top: 32px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(10,10,20,0.96);
  border: 1px solid var(--border-subtle);
}

.info-section p { color: var(--text-muted); }

/* FOOTER */
.site-footer {
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

/* Responsive tweaks */
@media (max-width: 720px) {
  .site-header { padding: 12px 18px; }
  .logo { font-size: 1.25rem; }
  .nav a { margin-left: 12px; font-size: 0.9rem; }
  .preview-body { height: 70px; }
}