/* ============================================================
   OPEN VALUE — Digital Money Edition
   css/style.css
   ============================================================ */

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

/* ---------- CUSTOM PROPERTIES ---------- */
:root {
  --orange: #fa8219;
  --orange-glow: #ff9a3c;
  --orange-dark: #c4650f;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1c1c1c;
  --text-primary: #f0f0f0;
  --text-secondary: #999999;
  --text-muted: #555555;
  --border: #222222;
  --border-hover: #333333;
  --accent-blue: #0caaeb;
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --nav-height: 64px;
  --section-padding: 6rem 1.5rem;
  --container-max: 1200px;
  --radius: 0px;
}

/* ---------- BASE ---------- */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

::selection {
  background: var(--orange);
  color: var(--bg-primary);
}

a {
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover { color: var(--orange-glow); }

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

/* ---------- NOISE OVERLAY ---------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* ---------- UTILITY ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-label::before {
  content: '//';
  color: var(--text-muted);
}

/* ---------- BUTTONS ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--orange);
  color: var(--bg-primary);
  padding: 0.9rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
}

.btn-primary:hover {
  background: var(--orange-glow);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(250, 130, 25, 0.3);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--orange-glow);
  outline-offset: 3px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-primary);
  padding: 0.9rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.btn-speaker {
  background: #e83d8f;
  color: #000;
  border-color: #e83d8f;
}

.btn-speaker:hover {
  background: #d1357f;
  border-color: #d1357f;
  color: #000;
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: var(--nav-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: height 0.3s, padding 0.3s;
}

.navbar.scrolled {
  height: 52px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--orange);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.nav-brand .muted {
  color: var(--text-muted);
  text-decoration: line-through;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-menu a {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.2s;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--orange);
  transition: width 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--orange);
}

.nav-menu a.active::after,
.nav-menu a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--orange);
  color: var(--bg-primary) !important;
  padding: 0.45rem 1.1rem;
  font-weight: 700;
  font-size: 0.78rem !important;
  letter-spacing: 0.08em !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  background: var(--orange-glow) !important;
  color: var(--bg-primary) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  position: absolute;
  left: 0;
  transition: all 0.3s;
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }

.hamburger.open span:nth-child(1) {
  top: 9px;
  transform: rotate(45deg);
}

.hamburger.open span:nth-child(2) { opacity: 0; }

.hamburger.open span:nth-child(3) {
  top: 9px;
  transform: rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-height) + 3rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(250, 130, 25, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 130, 25, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 70%);
}

.hero-glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(250, 130, 25, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--orange);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--orange);
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-logo {
  width: 100%;
  max-width: 520px;
  height: auto;
}

.hero-seo-title {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 700px;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  font-weight: 300;
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--orange);
}

.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 650px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

/* Presented by */
.hero-presented {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-presented-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  white-space: nowrap;
}

.hero-presented-logos {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.hero-presented-logos a {
  display: flex;
  align-items: center;
  opacity: 0.7;
  transition: opacity 0.25s;
}

.hero-presented-logos a:hover {
  opacity: 1;
}

.hero-presented-logos img {
  max-height: 56px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.2);
}

.hero-presented-logos .sponsor-logo-placeholder {
  font-size: 0.85rem;
  margin-bottom: 0;
}

.hero-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-meta-item {
  padding: 1rem 1.5rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  min-width: 160px;
}

.hero-meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.3rem;
}

.hero-meta-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Keyword strip */
.keyword-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 1.5rem;
  background: var(--bg-secondary);
}

.keyword-strip .container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.keyword-strip span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  position: relative;
}

.keyword-strip span::before {
  content: '◆';
  color: var(--orange);
  margin-right: 0.6rem;
  font-size: 0.5rem;
  vertical-align: middle;
}

/* ============================================================
   MANIFESTO
   ============================================================ */
.manifesto {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.manifesto-text h3 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

.manifesto-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.manifesto-smaller {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.manifesto-highlight {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--orange) !important;
  border-left: 3px solid var(--orange);
  padding-left: 1.2rem;
  margin-top: 2rem !important;
  font-style: italic;
}

.manifesto-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 2;
  color: var(--text-muted);
  position: relative;
}

.manifesto-terminal::before {
  content: 'terminal';
  position: absolute;
  top: -0.65em;
  left: 1rem;
  background: var(--bg-card);
  padding: 0 0.5rem;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.manifesto-terminal .prompt {
  color: var(--orange);
}

.manifesto-terminal .success {
  color: #4ade80;
}

.manifesto-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border);
}

.stat-item { text-align: center; }

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--orange);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ============================================================
   TEMI
   ============================================================ */
.temi {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.temi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.tema-card {
  background: var(--bg-primary);
  padding: 2.2rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.tema-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.tema-card:hover::before { transform: scaleX(1); }
.tema-card:hover { background: var(--bg-card-hover); }

.tema-card .number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.tema-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
  line-height: 1.3;
}

.tema-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   AGENDA
   ============================================================ */
.agenda {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
}

.agenda-intro {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 700px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.agenda-tentative {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 2rem;
  padding: 0.5rem 1rem;
  border: 1px dashed var(--border);
  display: inline-block;
}

.timeline { position: relative; }

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 92px;
  width: 1px;
  height: 100%;
  background: var(--border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 2.5rem;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.2s;
  position: relative;
}

.timeline-item:last-child { border-bottom: none; }

.timeline-item:hover { padding-left: 0.5rem; }

.timeline-item::after {
  content: '';
  position: absolute;
  left: 87px;
  top: 2.2rem;
  width: 11px;
  height: 11px;
  border: 2px solid var(--border);
  background: var(--bg-primary);
  border-radius: 50%;
  z-index: 1;
}

.timeline-item.highlight-dot::after {
  border-color: var(--orange);
  background: var(--orange);
}

.timeline-time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-top: 0.15rem;
}

.timeline-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.timeline-content .topic {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.timeline-content .speakers-list {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.timeline-content .speakers-list strong {
  color: var(--text-secondary);
  font-weight: 400;
}

.timeline-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}

.timeline-tag.panel {
  border-color: var(--orange);
  color: var(--orange);
}

.timeline-tag.workshop {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* ============================================================
   WORKSHOP
   ============================================================ */
.workshop {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.workshop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.workshop-card {
  border: 1px solid var(--border);
  background: var(--bg-primary);
  padding: 2.5rem;
  transition: border-color 0.3s;
}

.workshop-card:hover { border-color: var(--border-hover); }

.workshop-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.workshop-card .subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
}

.workshop-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.workshop-modules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.workshop-module {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.2s;
}

.workshop-module:hover { border-color: var(--orange); }

.workshop-module strong {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.2rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.code-demos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.code-demo {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.code-demo::before {
  content: attr(data-title);
  display: block;
  font-size: 0.65rem;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.code-demo .keyword { color: var(--accent-blue); }
.code-demo .fn { color: var(--orange); }
.code-demo .comment { color: var(--text-muted); opacity: 0.6; }
.code-demo .string { color: #4ade80; }

/* ============================================================
   SPEAKER
   ============================================================ */
.speaker {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
}

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.speaker-card {
  display: block;
  background: var(--bg-primary);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.3s;
  overflow: hidden;
}

.speaker-card:hover {
  background: var(--bg-card-hover);
}

.speaker-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  margin-bottom: 1rem;
  filter: grayscale(100%);
  transform: scale(1);
  transition: filter 0.4s ease, transform 0.4s ease;
}

.speaker-card:hover .speaker-photo {
  filter: grayscale(0%);
  transform: scale(1.08);
}

.speaker-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.speaker-affiliation {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 0.3rem;
}

/* ============================================================
   PARTNER
   ============================================================ */
.partner {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.partner-intro {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 700px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.partner-group-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.partner-card {
  padding: 2rem 1.5rem;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  text-align: center;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 140px;
}

.partner-card:hover {
  border-color: var(--orange);
}

.partner-card img {
  max-height: 48px;
  width: auto;
  margin-bottom: 0.8rem;
  filter: grayscale(1) brightness(1.5);
  transition: filter 0.3s;
}

.partner-card:hover img {
  filter: grayscale(0);
}

.partner-card .partner-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.partner-card.placeholder-card .partner-name {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ============================================================
   SPONSOR
   ============================================================ */
.sponsor {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
}

.sponsor-intro {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 700px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.sponsor-card {
  border: 1px solid var(--border);
  background: var(--bg-card);
  padding: 2rem;
  transition: border-color 0.3s;
}

.sponsor-card:hover { border-color: var(--border-hover); }

.sponsor-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.sponsor-logo-box {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 2.5rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.3s;
  text-decoration: none;
}

.sponsor-logo-box:hover {
  border-color: var(--orange);
}

.sponsor-logo-box img {
  max-height: 48px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  filter: brightness(1.1);
  transition: filter 0.3s;
}

.sponsor-logo-box:hover img {
  filter: brightness(1.4);
}

.sponsor-logo-placeholder {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.05em;
}

.sponsor-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.sponsor-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   LUOGO
   ============================================================ */
.luogo {
  padding: var(--section-padding);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.luogo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.luogo-info h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.luogo-info p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.luogo-address {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 1.2rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  line-height: 1.7;
}

.luogo-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.luogo-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border: 1px solid var(--border);
}

.luogo-image-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.luogo-map {
  width: 100%;
  aspect-ratio: 16/9;
  border: 1px solid var(--border);
  overflow: hidden;
}

.luogo-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(1) invert(1) contrast(1.1) brightness(0.6);
}

/* ============================================================
   CTA FINALE
   ============================================================ */
.cta-finale {
  padding: 8rem 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(250, 130, 25, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-finale h2 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  margin-bottom: 1.2rem;
  letter-spacing: -0.03em;
  position: relative;
  z-index: 1;
}

.cta-finale .cta-sub {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
  position: relative;
  z-index: 1;
}

.cta-finale .cta-sub-small {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 1;
  font-style: italic;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 3rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--orange);
  font-weight: 700;
  line-height: 1.6;
}

.footer-brand small {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 0.3rem;
}

.footer-center {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links a:hover { color: var(--orange); }

.footer-bottom {
  max-width: var(--container-max);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================================
   GLITCH
   ============================================================ */
.glitch { position: relative; }

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}

.glitch:hover::before {
  animation: glitch-1 0.3s linear;
  color: var(--accent-blue);
  z-index: -1;
  opacity: 0.8;
}

.glitch:hover::after {
  animation: glitch-2 0.3s linear;
  color: var(--orange);
  z-index: -2;
  opacity: 0.8;
}

@keyframes glitch-1 {
  0%   { clip-path: inset(40% 0 61% 0); transform: translate(-2px, -1px); opacity: 0.8; }
  20%  { clip-path: inset(92% 0 1% 0);  transform: translate(1px, 2px); }
  40%  { clip-path: inset(43% 0 1% 0);  transform: translate(-1px, -1px); }
  60%  { clip-path: inset(25% 0 58% 0); transform: translate(2px, 1px); }
  80%  { clip-path: inset(54% 0 7% 0);  transform: translate(-1px, 2px); }
  100% { clip-path: inset(58% 0 43% 0); transform: translate(0); opacity: 0; }
}

@keyframes glitch-2 {
  0%   { clip-path: inset(65% 0 13% 0); transform: translate(2px, 1px); opacity: 0.8; }
  20%  { clip-path: inset(15% 0 63% 0); transform: translate(-2px, -1px); }
  40%  { clip-path: inset(87% 0 2% 0);  transform: translate(1px, 2px); }
  60%  { clip-path: inset(30% 0 49% 0); transform: translate(-1px, -2px); }
  80%  { clip-path: inset(75% 0 9% 0);  transform: translate(2px, -1px); }
  100% { clip-path: inset(37% 0 53% 0); transform: translate(0); opacity: 0; }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (min-width: 768px) {
  :root {
    --section-padding: 8rem 2rem;
  }

  .hero {
    padding: calc(var(--nav-height) + 4rem) 2rem 5rem;
  }

  .workshop-grid {
    grid-template-columns: 1fr 1fr;
  }

  .workshop-card.full-width {
    grid-column: 1 / -1;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  .hamburger { display: block; }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-menu.open { display: flex; }

  .nav-menu a::after { display: none; }

  .hero-title {
    font-size: clamp(2.4rem, 10vw, 3.5rem);
  }

  .hero-meta { flex-direction: column; gap: 0.8rem; }
  .hero-meta-item { min-width: unset; }

  .keyword-strip .container { gap: 1rem; }
  .keyword-strip span { font-size: 0.7rem; }

  .manifesto-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .manifesto-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .temi-grid {
    grid-template-columns: 1fr;
  }

  .timeline::before { left: 0; }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding-left: 1.5rem;
  }

  .timeline-item::after {
    left: -5px;
    top: 2rem;
  }

  .timeline-time { color: var(--orange); }

  .workshop-modules { grid-template-columns: 1fr; }
  .code-demos { grid-template-columns: 1fr; }

  .speaker-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  .luogo-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sponsor-grid { grid-template-columns: 1fr; }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 1.5rem;
  }

  .footer-links { justify-content: center; }
}