/**
 * MGW 2026 – 3D Experience CSS (Fase 1)
 * Layout Fullscreen, Loading Screen & Design Essenziale RSM.
 */

:root {
  --bg-deep: #050507;
  --bg-dark: #090a0f;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.45);
  --accent-gold: #FFB001;
  --accent-orange: #F36D26;
  --accent-cyan: #00E5FF;
  --font-display: 'Oswald', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Share Tech Mono', monospace, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

html {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
  overflow-y: scroll;
}

body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  padding-top: 90px;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body > nav.rsm-site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  font-family: 'Oswald', sans-serif;
}

body > nav.rsm-site-nav .nav-items li a {
  font-family: 'Oswald', sans-serif;
}

@media (max-width: 1140px) {
  body {
    padding-top: 70px;
  }

  body > nav.rsm-site-nav .menu-icon,
  body > nav.rsm-site-nav .cancel-icon {
    order: 2;
  }
}

  /* Footer Styles */
  .footer {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    padding: 2.5rem 0 1rem;
    border-top: 1px solid rgba(255, 176, 1, 0.2);
    position: relative;
    z-index: 12;
    font-family: 'Oswald', sans-serif;
  }

  .footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #FFB001, #F36D26, transparent);
  }

  .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
  }

  .footer-links {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1rem;
  }

  .footer-link {
    color: #FFB001;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.08rem;
  }

  .footer-link:hover {
    color: #F36D26;
    transform: translateY(-2px);
  }

  .footer-text {
    color: white;
    font-size: 1rem;
    opacity: 0.8;
  }

  .footer-text p {
    margin: 0;
  }

  @media (max-width: 768px) {
    .footer-content {
      flex-direction: column;
      text-align: center;
      gap: 1.5rem;
      padding: 0 1rem;
    }

    .footer-links {
      justify-content: center;
      gap: 0.5rem;
      flex-wrap: nowrap;
      display: flex;
    }

    .footer-link {
      font-size: 0.65rem;
      white-space: nowrap;
      letter-spacing: 0.05rem;
    }

    .footer-text {
      font-size: 0.9rem;
    }
  }

/* Virtual Scroll Container: superficie di scroll alta 420vh */
#scroll-container {
  display: block;
  width: 100%;
  height: 420vh;
  pointer-events: none;
}

/* CTA finale dopo il percorso cinematografico */
.presentation-cta {
  position: relative;
  z-index: 11;
  width: 100%;
  margin-top: 66vh;
  min-height: 100vh;
  min-height: 100svh;
  padding: clamp(72px, 10vw, 140px) clamp(16px, 5vw, 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 35%, rgba(243, 109, 38, 0.12), transparent 42%),
    linear-gradient(180deg, #0b0c11 0%, #050507 100%);
  background-color: #050507;
  border-top: 1px solid rgba(255, 176, 1, 0.24);
}

.presentation-cta-content {
  width: min(900px, 100%);
  margin: 0 auto;
  text-align: center;
}

.presentation-cta h2 {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--text-primary);
  text-transform: uppercase;
}

.presentation-cta p {
  max-width: 620px;
  margin: 18px auto 0;
  color: var(--text-secondary);
  font-size: clamp(0.88rem, 1.2vw, 1rem);
  line-height: 1.6;
}

.presentation-cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 32px;
  padding: 14px 28px;
  border: 1px solid rgba(255, 176, 1, 0.75);
  color: var(--text-primary);
  background: rgba(255, 176, 1, 0.08);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.presentation-cta-button:hover,
.presentation-cta-button:focus-visible {
  border-color: var(--accent-orange);
  background: rgba(243, 109, 38, 0.16);
}

/* Canvas 3D Fullscreen */
#webgl-canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

#webgl-canvas {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

/* Vignette cinematografica soft */
.cinematic-vignette {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: 
    radial-gradient(circle at center, transparent 45%, rgba(5, 5, 7, 0.6) 100%),
    linear-gradient(180deg, rgba(5, 5, 7, 0.5) 0%, transparent 15%, transparent 85%, rgba(5, 5, 7, 0.7) 100%);
}

/* Loading Screen */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: radial-gradient(circle at center, #0f1016 0%, #050507 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
  pointer-events: auto;
}

#loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
  max-width: 90%;
}

.loader-logo {
  width: 72px;
  height: auto;
  filter: drop-shadow(0 0 25px rgba(255, 176, 1, 0.4));
  animation: pulseLogo 2.5s infinite ease-in-out;
}

@keyframes pulseLogo {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 20px rgba(255, 176, 1, 0.3)); }
  50% { transform: scale(1.05); filter: drop-shadow(0 0 35px rgba(255, 176, 1, 0.6)); }
}

.loader-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-orange);
  line-height: 1.1;
}

.loader-title span {
  color: var(--accent-gold);
}

.loader-sub {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.loader-bar-wrap {
  width: min(300px, 80vw);
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.loader-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-orange));
  border-radius: 4px;
  transition: width 0.2s ease-out;
  box-shadow: 0 0 12px rgba(255, 176, 1, 0.6);
}

.loader-percent {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
}

/* Minimal Top Brand Badge */
.brand-overlay {
  position: fixed;
  top: 24px;
  left: 32px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
  text-decoration: none;
  background: rgba(13, 14, 20, 0.6);
  border: 1px solid rgba(255, 176, 1, 0.2);
  padding: 8px 18px;
  border-radius: 999px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.3s ease;
}

.brand-overlay:hover {
  border-color: var(--accent-gold);
  box-shadow: 0 0 20px rgba(255, 176, 1, 0.25);
}

.brand-overlay img {
  height: 22px;
  width: auto;
}

.brand-overlay span {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
}

/* Intro Hero Text Block (Start Screen - Left Side) */
.intro-hero-block {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  left: clamp(20px, 3.0vw, 44px);
  z-index: 10;
  max-width: min(290px, 20vw);
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: auto;
  background: transparent;
  isolation: isolate;
  opacity: 1;
  will-change: opacity, transform;
}

.intro-hero-block::before,
.zone-text-overlay::before {
  content: '';
  position: absolute;
  inset: -18px -22px;
  z-index: -1;
  border-left: 2px solid rgba(255, 161, 26, 0.78);
  background:
    linear-gradient(135deg, rgba(5, 5, 7, 0.96) 0%, rgba(15, 18, 23, 0.88) 58%, rgba(243, 109, 38, 0.18) 100%),
    repeating-linear-gradient(135deg, transparent 0 26px, rgba(255, 161, 26, 0.045) 27px, transparent 28px 54px);
  box-shadow: 18px 0 42px rgba(0, 0, 0, 0.24), inset 10px 0 30px rgba(255, 161, 26, 0.035);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
}

.intro-hero-block::after,
.zone-text-overlay::after {
  content: '';
  position: absolute;
  top: -18px;
  left: -22px;
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold), transparent);
  box-shadow: 0 0 18px rgba(255, 161, 26, 0.5);
  pointer-events: none;
}

.intro-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.20em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.intro-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.8vw, 1.95rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--text-primary);
  text-transform: uppercase;
}

.intro-desc {
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--text-secondary);
}

.intro-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.intro-cta-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

/* Zone Text Overlays (Waypoint 1, 2, 3, 4 - Minimal, Editorial, No Box/Card) */
.zone-text-overlay {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  max-width: min(380px, 28vw);
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
  background: transparent;
  isolation: isolate;
  opacity: 0;
  will-change: opacity, transform;
}

.zone-text-overlay.zone-left {
  left: clamp(24px, 3.5vw, 52px);
  text-align: left;
  align-items: flex-start;
}

.zone-text-overlay.zone-right {
  right: clamp(24px, 3.5vw, 52px);
  text-align: right;
  align-items: flex-end;
}

.zone-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.80rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--accent-gold);
  text-transform: uppercase;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.95);
}

.zone-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2.3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  text-transform: uppercase;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.95);
}

.zone-desc {
  font-family: var(--font-body);
  font-size: clamp(0.92rem, 1.0vw, 1.02rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.98);
}

/* Compatibilità overlay vuoto */
.scroll-indicator-overlay {
  display: none;
}

@media (max-width: 1200px) {
  .intro-hero-block {
    max-width: min(280px, 26vw);
    left: 18px;
    gap: 10px;
  }
  .zone-text-overlay {
    max-width: min(300px, 32vw);
  }
}

@media (max-width: 768px) {
  .brand-overlay {
    top: 16px;
    left: 16px;
    padding: 6px 14px;
  }
  .brand-overlay span {
    font-size: 0.8rem;
  }
  .intro-hero-block {
    position: fixed;
    top: auto;
    bottom: 24px;
    left: 16px;
    right: 16px;
    max-width: calc(100% - 32px);
    transform: none;
    gap: 8px;
  }
  .intro-title {
    font-size: 1.35rem;
  }
  .intro-desc {
    font-size: 0.78rem;
    line-height: 1.4;
  }
  .zone-text-overlay {
    position: fixed;
    top: auto;
    bottom: clamp(30px, 6vh, 54px);
    left: 24px !important;
    right: 24px !important;
    max-width: calc(100% - 48px);
    transform: none !important;
    gap: 10px;
    text-align: left !important;
    align-items: flex-start !important;
  }

  #zone-overlay-meetgreet {
    top: clamp(88px, 16vh, 150px);
    bottom: auto;
  }

  .zone-title {
    font-size: 1.65rem;
    line-height: 1.1;
  }
  .zone-desc {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .presentation-cta {
    min-height: 100vh;
    min-height: 100svh;
    padding: 72px 16px 96px;
  }
}