/* Ergodika Fresh — Sep 2025 */
:root {
  /* Dark — elettronica */
  --bg: #0B0B12;
  --fg: #F6F8FF;
  --muted: #BFC2CF;
  --accent-1: #2EB6FF;
  --accent-2: #E43CC3;
  --accent-3: #6D3EF4;
  --accent-4: #FF7A18;
  --card: #111119;
  --border: #1A1F2A;
  --elev: 0 10px 30px rgba(0, 0, 0, .35);
  --radius: 16px;
  --navbar: color-mix(in srgb, var(--bg) 78%, transparent);
}

:root[data-theme="light"] {
  /* Light — didattica */
  --bg: #F8F7F4;
  --fg: #16181F;
  --muted: #5A6070;
  --accent-1: #2EB6FF;
  --accent-2: #E43CC3;
  --accent-3: #7B61FF;
  --accent-4: #FFB80F;
  --card: #FFFFFF;
  --border: #E1E5ED;
  --elev: 0 10px 24px rgba(16, 18, 30, .08);
  --navbar: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 255, 255, .6) 100%);
}

* {
  box-sizing: border-box
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Helvetica Neue", sans-serif
}

a {
  color: var(--fg);
  text-decoration: underline dotted 1px
}

button {
  font: inherit;
  cursor: pointer
}

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

.container {
  width: min(1120px, 92vw);
  margin-inline: auto
}

.section {
  padding-block: 80px
}

.section.compact {
  padding-block: 48px
}

/* === EXACT demo background applied site-wide on dark === */
html[data-theme="dark"] body {
  background: #0B0B12 url('../assets/demo-background.png') center / cover no-repeat fixed;
  color: var(--fg);
}

@media (max-width: 700px) {
  html[data-theme="dark"] body {
    background-attachment: scroll;
    background-position: center 60%;
  }
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: var(--navbar);
  border-bottom: 1px solid var(--border)
}

.navbar .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0
}

.nav-links {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px
}

.logo img {
  width: 32px;
  height: 32px
}

.logo strong {
  letter-spacing: .6px
}

/* Buttons — stabili, pallino magenta on hover/click */
.btn {
  --cap: currentColor;
  --dot-default: color-mix(in srgb, var(--fg) 20%, var(--bg));
  --dot-active: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--border) 70%, var(--fg) 10%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 92%, #fff) 0%, color-mix(in srgb, var(--bg) 80%, #000) 100%);
  color: var(--fg);
  box-shadow: var(--elev);
  text-decoration: none;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .82rem;
  transition: background-color .15s ease, box-shadow .15s ease, color .15s ease
}

.btn::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--dot-default);
  opacity: .55;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--fg) 12%, transparent)
}

.btn:hover::before, .btn:focus-visible::before, .btn:active::before {
  background: var(--dot-active);
  opacity: 1;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-2) 20%, transparent), 0 0 8px color-mix(in srgb, var(--accent-2) 50%, transparent)
}

.btn:hover {
  transform: none
}

.btn:active {
  transform: none
}

.btn.primary {
  border-color: color-mix(in srgb, var(--accent-1) 40%, var(--border))
}

.btn.primary::after {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-left: .45rem;
  display: inline-block;
  background: radial-gradient(circle at 40% 35%, var(--accent-2) 0%, rgba(0, 0, 0, .3) 70%);
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent-2) 50%, transparent))
}

.btn.ghost {
  background: transparent
}

.btn.small {
  padding: .55rem .8rem;
  border-radius: 10px
}

/* Cards & grids */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--elev)
}

.grid {
  display: grid;
  gap: 20px
}

.grid.cols-3 {
  grid-template-columns: repeat(3, 1fr)
}

.grid.cols-2 {
  grid-template-columns: repeat(2, 1fr)
}

@media (max-width:1000px) {
  .grid.cols-3 {
    grid-template-columns: 1fr 1fr
  }
}

@media (max-width:640px) {
  .grid.cols-3, .grid.cols-2 {
    grid-template-columns: 1fr
  }
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: transparent
}

.hero .wrap {
  padding: 72px 0 84px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: center
}

@media (max-width:900px) {
  .hero .wrap {
    grid-template-columns: 1fr;
    padding: 56px 0
  }
}

.kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  margin: 0 0 10px
}

.lead {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  margin: 0 0 14px;
  color: #dfe1ec
}

:root[data-theme="light"] .lead {
  color: #3b3f4e
}

/* Light background with shelf */
.light-bg::before {
  content: "";
  position: absolute;
  inset: -10%;
  z-index: -2;
  background: linear-gradient(180deg, #FFFFFF, #F8F7F4)
}

.light-shelf {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 68px;
  background: url('../assets/wood.svg') center/128px repeat;
  border-top: 1px solid #e5dccb;
  z-index: -1;
  opacity: .9
}

/* Media, player, map, posts */
.media-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr)
}

@media (max-width:900px) {
  .media-grid {
    grid-template-columns: 1fr 1fr
  }
}

@media (max-width:600px) {
  .media-grid {
    grid-template-columns: 1fr
  }
}

.media {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--elev)
}

.media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform .6s ease
}

.media:hover img {
  transform: scale(1.06)
}

.player {
  display: flex;
  gap: 14px;
  align-items: center
}

.player .vis {
  width: 120px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(180deg, #0c0e16, #171a26);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border)
}

.player .vis canvas {
  position: absolute;
  inset: 0
}

.player .meta {
  flex: 1
}

.player .ctrls {
  display: flex;
  gap: 8px
}

.map {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  min-height: 240px;
  background: repeating-conic-gradient(from 0deg, #101219 0 10deg, #0e0f15 10deg 20deg)
}

:root[data-theme="light"] .map {
  background: repeating-conic-gradient(from 0deg, #eef2f6 0 10deg, #e8ecf2 10deg 20deg)
}

.post-list {
  display: grid;
  gap: 16px
}

.post {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card)
}

.article {
  display: grid;
  gap: 12px;
  max-width: 70ch
}

.article h1 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem)
}

.article img {
  border-radius: 12px;
  border: 1px solid var(--border)
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .35rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: .78rem;
  color: var(--muted)
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--accent-1) 8%, var(--card))
}

.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 60px;
  color: #b9bcd0
}

:root[data-theme="light"] .footer {
  color: #4a5169
}

.hide {
  display: none !important
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 10px
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important
  }
}

/* === PWA Install module === */
.pwa-card {
  display: block
}

.pwa-card .muted {
  color: var(--muted)
}

.pwa-card .pwa-status {
  margin-top: 6px;
  font-size: .9rem;
  color: var(--muted)
}

.pwa-fab {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 60
}

.pwa-fab .btn {
  box-shadow: 0 8px 28px rgba(0, 0, 0, .35)
}

.pwa-ready .btn {
  outline: 1px dashed color-mix(in srgb, var(--accent-2) 40%, var(--border));
}

/* === Mobile hamburger base === */
.hamburger {
  display: none;
  gap: 8px;
  align-items: center;
  background: transparent;
  border: 1px solid var(--border);
  padding: .55rem .7rem;
  border-radius: 10px
}

.hamburger .bars {
  width: 20px;
  height: 14px;
  position: relative;
  display: inline-block
}

.hamburger .bars::before, .hamburger .bars::after, .hamburger .bars span {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  border-radius: 2px
}

.hamburger .bars::before {
  top: 0
}

.hamburger .bars span {
  top: 6px
}

.hamburger .bars::after {
  bottom: 0
}

.hamburger[aria-expanded="true"] .bars::before {
  transform: translateY(6px) rotate(45deg)
}

.hamburger[aria-expanded="true"] .bars span {
  opacity: 0
}

.hamburger[aria-expanded="true"] .bars::after {
  transform: translateY(-6px) rotate(-45deg)
}

/* === Full-screen overlay === */
.nav-drawer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background: color-mix(in srgb, var(--bg) 70%, #000 30%);
  backdrop-filter: blur(10px) saturate(110%);
  transform: translateY(100%);
  transition: transform .28s cubic-bezier(.2, .7, .2, 1);
  z-index: 80;
  display: flex;
  flex-direction: column;
  padding: 24px;
}

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

.nav-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-head .brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-head .close {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .6rem .8rem;
}

.nav-head .close .bars {
  width: 20px;
  height: 14px;
  position: relative;
  display: inline-block;
}

.nav-head .close .bars::before, .nav-head .close .bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.nav-head .close .bars::before {
  top: 6px;
  transform: rotate(45deg);
}

.nav-head .close .bars::after {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.nav-list a {
  display: block;
  padding: 14px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: clamp(1.2rem, 3.8vw, 1.6rem);
  letter-spacing: .02em;
}

.nav-list a:hover {
  border-color: color-mix(in srgb, var(--fg) 12%, var(--border));
}

/* Responsive: sotto 900px nasconde i link, mostra l’hamburger */
@media (max-width: 900px) {
  .nav-links {
    display: none
  }

  .hamburger {
    display: inline-flex
  }
}

/* Variante chiara (opzionale) quando data-theme="light" */
:root[data-theme="light"] .nav-drawer {
  background: color-mix(in srgb, #fff 80%, var(--bg) 20%);
  backdrop-filter: blur(12px) saturate(120%);
}

/* Contatti */
.contact-list{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:6px}
.contact-list a{text-decoration:none;border-bottom:1px dotted color-mix(in srgb, var(--fg) 24%, var(--border))}
.contact-list a:hover{border-bottom-color: var(--accent-2)}

/* Social buttons */
.social{display:flex;gap:10px;flex-wrap:wrap}
.social-btn{
  width:40px;height:40px;display:inline-grid;place-items:center;border-radius:12px;
  border:1px solid color-mix(in srgb, var(--border) 80%, var(--fg) 10%);
  background:linear-gradient(180deg, color-mix(in srgb, var(--bg) 92%, #fff) 0%, color-mix(in srgb, var(--bg) 80%, #000) 100%);
  box-shadow:var(--elev);text-decoration:none;color:var(--fg);
  transition:background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.social-btn svg{width:20px;height:20px;fill:currentColor;opacity:.85;transition:opacity .15s ease, filter .15s ease}

/* Hover/click: puntino magenta “spirituale”, niente movimento */
.social-btn:hover{border-color:color-mix(in srgb, var(--accent-2) 40%, var(--border))}
.social-btn:hover svg{opacity:1;filter:drop-shadow(0 0 6px color-mix(in srgb, var(--accent-2) 50%, transparent))}
.social-btn:active{transform:none}