/* ==========================================================================
   LAKYX — Manuale d'uso — Stylesheet
   Basato su: M-Live | Lakyx Logo Manuale all'utilizzo
   Palette: #1b1b1b (dark) / #f4f4f9 (light) / #fbae2d (accent)
   Tipografia: Inter
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

:root{
  /* --- Brand palette (dal manuale logo) --- */
  --dark:        #1b1b1b;
  --dark-soft:   #262626;
  --dark-raise:  #303032;
  --light:       #f4f4f9;
  --light-dim:   #e7e7ee;
  --accent:      #fbae2d;
  --accent-dim:  #d99a2c;
  --line:        #e3e3ec;
  --line-dark:   #3a3a3d;
  --text-muted:  #6f6f78;
  --text-muted-dark: #9b9ba3;

  /* --- Type --- */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* --- Layout --- */
  --sidebar-w: 320px;
  --content-max: 760px;
  --radius: 14px;
  --radius-sm: 8px;

  /* --- Motion --- */
  --ease: cubic-bezier(.2,.8,.2,1);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font);
  background: var(--light);
  color: var(--dark);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

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

::selection{ background: var(--accent); color: var(--dark); }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ==========================================================================
   Moon-phase mark — signature graphic element (crescent / half / full)
   ========================================================================== */
.moon-mark{
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}
.moon-mark svg{ display: block; }

/* ==========================================================================
   Top bar (mobile) — hamburger + brand
   ========================================================================== */
.topbar{
  display: none;
  position: sticky;
  top: 0;
  z-index: 60;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--dark);
  color: var(--light);
}
.topbar .brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
}
.topbar .brand .moon-mark rect{ fill: var(--light); }
.topbar .brand .moon-mark circle{ fill: var(--dark); }
.icon-btn{
  background: transparent;
  border: 1px solid rgba(244,244,249,0.25);
  color: var(--light);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn:hover{ border-color: var(--accent); }
.icon-btn svg{ width: 20px; height: 20px; }

/* ==========================================================================
   Language switcher (flags)
   ========================================================================== */
.lang-switch{
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-switch a{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  line-height: 1;
  border: 1px solid rgba(244,244,249,0.25);
  opacity: 0.55;
  transition: opacity .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.lang-switch a:hover{ opacity: 0.9; border-color: var(--accent); }
.lang-switch a.active{
  opacity: 1;
  border-color: var(--accent);
  background: rgba(251,174,45,0.12);
}
.topbar .lang-switch{ margin-right: 4px; }
.sidebar-header .lang-switch{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
}
.sidebar-header .lang-switch a{ border-color: var(--line-dark); }

/* ==========================================================================
   App shell
   ========================================================================== */
.app{
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar{
  background: var(--dark);
  color: var(--light);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 28px 22px 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-dark) transparent;
  transition: transform .35s var(--ease);
  z-index: 65;
}
.sidebar::-webkit-scrollbar{ width: 6px; }
.sidebar::-webkit-scrollbar-thumb{ background: var(--line-dark); border-radius: 4px; }

.sidebar-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand-block{
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-block .brand-name{
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}
.brand-block .brand-sub{
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted-dark);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 1px;
}
.sidebar-close{
  display: none;
  background: transparent;
  border: none;
  color: var(--light);
  cursor: pointer;
  width: 32px; height: 32px;
  align-items: center; justify-content: center;
}

/* Search */
.search-wrap{
  position: relative;
}
.search-wrap input{
  width: 100%;
  background: var(--dark-soft);
  border: 1px solid var(--line-dark);
  color: var(--light);
  font-family: var(--font);
  font-size: 0.92rem;
  padding: 11px 38px 11px 14px;
  border-radius: var(--radius-sm);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.search-wrap input::placeholder{ color: var(--text-muted-dark); }
.search-wrap input:focus{ border-color: var(--accent); background: var(--dark-raise); outline: none; }
.search-wrap .search-icon{
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-muted-dark);
  pointer-events: none;
}
.search-hint{
  font-size: 0.72rem;
  color: var(--text-muted-dark);
  padding: 0 2px;
}
kbd{
  background: var(--dark-raise);
  border: 1px solid var(--line-dark);
  border-radius: 4px;
  font-family: var(--font);
  font-size: 0.68rem;
  padding: 1px 5px;
}

/* Nav */
.nav{
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-link{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted-dark);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background .15s var(--ease), color .15s var(--ease);
}
.nav-link .n{
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--line-dark);
  font-variant-numeric: tabular-nums;
  width: 18px;
  flex-shrink: 0;
}
.nav-link:hover{ background: var(--dark-soft); color: var(--light); }
.nav-link.active{ background: var(--dark-soft); color: var(--light); }
.nav-link.active .n{ color: var(--accent); }

.sidebar-footer{
  border-top: 1px solid var(--line-dark);
  padding-top: 16px;
  font-size: 0.74rem;
  color: var(--text-muted-dark);
  line-height: 1.5;
}
.sidebar-footer strong{ color: var(--light); }

/* ==========================================================================
   Search results overlay
   ========================================================================== */
.search-overlay{
  position: fixed;
  inset: 0;
  background: var(--light);
  z-index: 100;
  display: none;
  flex-direction: column;
}
.search-overlay.open{ display: flex; }
.search-overlay-header{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--light);
}
.search-overlay-header .search-wrap{ flex: 1; max-width: 640px; }
.search-overlay-header .search-wrap input{
  background: #fff;
  border: 1px solid var(--line);
  color: var(--dark);
}
.search-overlay-header .search-wrap input::placeholder{ color: var(--text-muted); }
.search-overlay-header .search-wrap .search-icon{ color: var(--text-muted); }
.search-overlay-close{
  background: var(--dark);
  color: var(--light);
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}
.search-overlay-close:hover{ background: var(--accent); color: var(--dark); }

.search-results{
  flex: 1;
  overflow-y: auto;
  padding: 8px 24px 60px;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}
.search-meta{
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 16px 4px 8px;
}
.result-item{
  display: block;
  padding: 16px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background .15s var(--ease);
}
.result-item:hover{ background: var(--light-dim); }
.result-item .result-section{
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-dim);
  margin-bottom: 4px;
}
.result-item .result-title{
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}
.result-item .result-snippet{
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.result-item mark{
  background: var(--accent);
  color: var(--dark);
  border-radius: 2px;
  padding: 0 1px;
}
.search-empty{
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.search-empty .moon-mark{ justify-content: center; margin-bottom: 18px; opacity: 0.4; }

/* ==========================================================================
   Main content
   ========================================================================== */
.main{
  min-width: 0;
  background: var(--light);
}

.hero{
  padding: 72px 56px 56px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  max-width: var(--content-max);
  margin: 0 auto;
}
.hero-eyebrow{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 18px;
}
.hero h1{
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 18px;
  max-width: 14ch;
}
.hero .lede{
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 0 28px;
}
.hero-meta{
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-meta div{ font-size: 0.85rem; }
.hero-meta .k{ color: var(--text-muted); display: block; margin-bottom: 2px; }
.hero-meta .v{ font-weight: 700; }
.hero-art{
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.85;
  pointer-events: none;
}

.content{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 56px 120px;
}

/* Section */
.section{
  padding-top: 64px;
  scroll-margin-top: 24px;
}
.section:first-of-type{ padding-top: 56px; }

.section-head{
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--dark);
}
.section-head .num{
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--accent-dim);
  font-variant-numeric: tabular-nums;
}
.section-head h2{
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
  flex: 1;
}

.subsection h3{
  font-size: 1.25rem;
  font-weight: 700;
  margin: 38px 0 14px;
  letter-spacing: -0.005em;
}
.subsection h4{
  font-size: 1.02rem;
  font-weight: 700;
  margin: 26px 0 10px;
  color: var(--dark);
}
.subsection h4::before{
  content: '';
  display: inline-block;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 9px;
  vertical-align: middle;
}

.content p{ margin: 0 0 16px; color: var(--dark); }
.content p.lede-p{ color: var(--text-muted); font-size: 1.05rem; }

.content ul, .content ol{
  margin: 0 0 18px;
  padding-left: 1.3em;
}
.content li{ margin-bottom: 7px; }
.content ul li::marker{ color: var(--accent-dim); }
.content ol li::marker{ font-weight: 700; color: var(--accent-dim); }

.content strong{ font-weight: 700; }

.content blockquote{
  margin: 20px 0;
  padding: 16px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--dark);
  font-size: 0.94rem;
}
.content blockquote p{ margin: 0 0 8px; }
.content blockquote p:last-child{ margin-bottom: 0; }

hr.divider{
  border: none;
  border-top: 1px solid var(--line);
  margin: 48px 0;
}

/* Figures */
figure.fig{
  margin: 24px 0 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
figure.fig img{ width: 100%; }
figure.fig.fig-tight{ max-width: 360px; }
figure.fig.fig-pad img{ padding: 28px; background: #fff; }
figure.fig figcaption{
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  background: var(--light);
}
.fig-row{
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 24px 0 28px;
}
.fig-row figure.fig{ flex: 1 1 220px; margin: 0; }

/* QR figure small */
figure.fig-qr{ max-width: 160px; }
figure.fig-qr img{ padding: 16px; }

/* Tables */
.table-wrap{
  overflow-x: auto;
  margin: 22px 0 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
table{
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: #fff;
}
table thead th{
  background: var(--dark);
  color: var(--light);
  text-align: left;
  padding: 12px 16px;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
table tbody td{
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table tbody tr:last-child td{ border-bottom: none; }
table tbody tr:hover{ background: var(--light-dim); }
table td img{ max-width: 90px; }

/* Inline table image cell */
.cell-img{ display: flex; align-items: center; gap: 10px; }
.cell-img img{ width: 56px; height: 56px; object-fit: contain; background: var(--light); border-radius: 6px; padding: 6px; }

/* Callout / note box */
.callout{
  display: flex;
  gap: 14px;
  background: #fff8ec;
  border: 1px solid #f4dba3;
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 22px 0 28px;
  font-size: 0.93rem;
}
.callout .callout-icon{
  flex-shrink: 0;
  width: 22px; height: 22px;
  color: var(--accent-dim);
  margin-top: 2px;
}
.callout p:last-child{ margin-bottom: 0; }
.callout strong{ color: var(--dark); }

/* Spec list */
.spec-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 22px 0 28px;
}
.spec-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.spec-card h5{
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 10px;
  font-weight: 700;
}
.spec-card ul{ margin: 0; padding: 0; list-style: none; }
.spec-card li{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.88rem;
}
.spec-card li:last-child{ border-bottom: none; }
.spec-card li b{ font-weight: 700; }

/* Code-style labels for connectors (DMX, USB-C etc) */
.tag{
  display: inline-flex;
  align-items: center;
  background: var(--dark);
  color: var(--light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 5px;
}

/* Section progress moon-phase indicator (decorative, in hero) */
.phase-progress{
  display: flex;
  gap: 5px;
  margin-top: 28px;
}
.phase-progress span{
  width: 26px; height: 4px;
  border-radius: 2px;
  background: var(--line-dark);
  opacity: 0.25;
}

/* Footer */
.page-footer{
  border-top: 1px solid var(--line);
  padding: 40px 56px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.page-footer .moon-mark{ opacity: 0.5; }

/* Back to top */
.to-top{
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--dark);
  color: var(--light);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(27,27,27,0.25);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), background .2s var(--ease);
  z-index: 40;
  pointer-events: none;
}
.to-top.visible{ opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover{ background: var(--accent); color: var(--dark); }
.to-top svg{ width: 18px; height: 18px; }

/* Sidebar overlay scrim (mobile) */
.scrim{
  position: fixed;
  inset: 0;
  background: rgba(27,27,27,0.5);
  z-index: 45;
  display: none;
}
.scrim.open{ display: block; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px){
  .hero-art{ display: none; }
  .hero{ padding: 56px 40px 44px; }
  .content{ padding: 0 40px 100px; }
  .page-footer{ padding: 36px 40px 48px; }
}

@media (max-width: 880px){
  .topbar{ display: flex; }
  .app{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed;
    left: 0; top: 0;
    width: min(86vw, 340px);
    height: 100vh;
    transform: translateX(-100%);
    box-shadow: 12px 0 40px rgba(0,0,0,0.25);
  }
  .sidebar.open{ transform: translateX(0); }
  .sidebar-close{ display: flex; }
  .hero{ padding: 40px 24px 36px; }
  .hero h1{ max-width: none; }
  .content{ padding: 0 24px 90px; }
  .section-head h2{ font-size: 1.4rem; }
  .page-footer{ padding: 32px 24px 44px; flex-direction: column; align-items: flex-start; }
  .search-overlay-header{ padding: 14px 16px; }
  .search-results{ padding: 8px 16px 60px; }
  .fig-row{ display: block; }
  .fig-row figure.fig{ margin: 0 0 16px; }
}

@media (max-width: 480px){
  .hero h1{ font-size: 2rem; }
  .hero .lede{ font-size: 1rem; }
  table{ font-size: 0.82rem; }
  table thead th, table tbody td{ padding: 10px 10px; }
}