/* 4-Welten Preview Master — Header & Shell */
html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  font-family: "Space Grotesk", system-ui, sans-serif;
}

:root {
  --bar-h: 56px;
}

.mv4-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2147483647;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 12px;
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  transition: background 0.35s ease, border-color 0.35s ease;
}

.mv4-logo {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 10px;
  line-height: 0;
  flex-shrink: 0;
}

.mv4-logo img {
  width: clamp(120px, 22vw, 200px);
  height: auto;
  max-height: 52px;
  object-fit: contain;
  object-position: left center;
  display: block;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.35));
}

.mv4-worlds {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
  justify-content: center;
  width: 100%;
}

.mv4-worlds button {
  font: inherit;
  cursor: pointer;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.25s ease;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.mv4-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-left: auto;
}

.mv4-fx,
.mv4-flag,
.sound-toggle {
  font: inherit;
  cursor: pointer;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.mv4-fx.is-on {
  opacity: 1;
}

.mv4-fx[aria-pressed="true"] {
  opacity: 1;
}

.mv4-fx {
  padding: 8px 13px;
  font-weight: 700;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0.72;
}

.mv4-flags {
  display: flex;
  gap: 6px;
}

.mv4-flag {
  width: 40px;
  height: 28px;
  padding: 2px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.06);
}

.mv4-flag img {
  width: 30px;
  height: 20px;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

.mv4-frame {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: var(--bar-h, 56px);
  width: 100%;
  height: calc(100dvh - var(--bar-h, 56px));
  border: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 0;
}

.mv4-frame.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  z-index: 1;
}

/* MULTIVERSUM (general) */
body[data-master-world="general"] {
  background: #05070d;
}

body[data-master-world="general"] .mv4-bar {
  background: rgba(5, 7, 13, 0.94);
  border-bottom: 1px solid rgba(255, 89, 178, 0.2);
  backdrop-filter: blur(12px);
}

body[data-master-world="general"] .mv4-worlds button {
  color: rgba(238, 243, 255, 0.78);
  border-color: rgba(255, 89, 178, 0.22);
  background: rgba(16, 22, 34, 0.55);
  border-radius: 999px 28px 999px 28px / 999px 34px 999px 34px;
}

body[data-master-world="general"] .mv4-worlds button.is-active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #5ec4ff 0%, #9b6bff 24%, #ff59b2 50%, #ff9b37 76%, #ffd86a 100%);
  box-shadow: 0 10px 28px rgba(255, 89, 178, 0.24);
}

body[data-master-world="general"] .mv4-worlds button[data-iframe="0"] {
  font-weight: 800;
  letter-spacing: 0.06em;
}

body[data-master-world="general"] .mv4-fx,
body[data-master-world="general"] .mv4-flag,
body[data-master-world="general"] .sound-toggle {
  color: rgba(238, 243, 255, 0.85);
  border-color: rgba(255, 89, 178, 0.28);
  background: rgba(16, 22, 34, 0.55);
}

body[data-master-world="general"] .sound-toggle.is-on {
  border-color: rgba(94, 196, 255, 0.45);
  color: #5ec4ff;
}

body[data-master-world="general"] .mv4-fx[aria-pressed="true"],
body[data-master-world="general"] .mv4-fx.is-on {
  border-color: rgba(255, 89, 178, 0.45);
  color: #ff59b2;
}

body[data-master-world="general"] .mv4-flag.is-active {
  box-shadow: 0 0 0 2px rgba(255, 89, 178, 0.55);
}

/* NEXORA */
body[data-master-world="nexora"] {
  background: #050810;
}

body[data-master-world="nexora"] .mv4-bar {
  background: rgba(5, 8, 16, 0.92);
  border-bottom: 1px solid rgba(142, 197, 255, 0.15);
  backdrop-filter: blur(12px);
}

body[data-master-world="nexora"] .mv4-worlds button {
  color: rgba(232, 238, 248, 0.78);
  border-color: rgba(142, 197, 255, 0.22);
  background: rgba(18, 32, 56, 0.55);
}

body[data-master-world="nexora"] .mv4-worlds button.is-active {
  color: #fff;
  border-color: #65d9ff;
  background: rgba(0, 140, 255, 0.22);
  box-shadow: 0 0 28px rgba(0, 194, 255, 0.22);
}

body[data-master-world="nexora"] .mv4-fx,
body[data-master-world="nexora"] .mv4-flag,
body[data-master-world="nexora"] .sound-toggle {
  color: rgba(232, 238, 248, 0.85);
  border-color: rgba(142, 197, 255, 0.28);
  background: rgba(18, 32, 56, 0.55);
}

body[data-master-world="nexora"] .mv4-fx[aria-pressed="true"],
body[data-master-world="nexora"] .mv4-fx.is-on {
  border-color: rgba(101, 217, 255, 0.45);
  color: #65d9ff;
}

/* PROFESSIONAL */
body[data-master-world="vertex"] {
  background: #f4f2ee;
}

body[data-master-world="vertex"] .mv4-bar {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
}

body[data-master-world="vertex"] .mv4-worlds button {
  color: rgba(17, 17, 17, 0.55);
  border-radius: 0;
  border-color: rgba(0, 0, 0, 0.14);
  background: rgba(255, 255, 255, 0.65);
}

body[data-master-world="vertex"] .mv4-worlds button.is-active {
  color: #fff;
  background: #111;
  border-color: #111;
}

body[data-master-world="vertex"] .mv4-fx,
body[data-master-world="vertex"] .mv4-flag,
body[data-master-world="vertex"] .sound-toggle {
  color: rgba(17, 17, 17, 0.65);
  border-color: rgba(0, 0, 0, 0.16);
  background: rgba(255, 255, 255, 0.85);
  border-radius: 999px;
}

body[data-master-world="vertex"] .mv4-fx[aria-pressed="true"],
body[data-master-world="vertex"] .mv4-fx.is-on {
  color: #111;
  border-color: rgba(0, 0, 0, 0.28);
}

body[data-master-world="vertex"] .mv4-flag {
  border-radius: 8px;
}

/* FREIRAUM */
body[data-master-world="freiraum"] {
  background: #1c1026;
}

body[data-master-world="freiraum"] .mv4-bar {
  background: rgba(28, 16, 38, 0.94);
  border-bottom: 1px solid rgba(255, 209, 102, 0.22);
  backdrop-filter: blur(12px);
}

body[data-master-world="freiraum"] .mv4-worlds button {
  color: rgba(255, 248, 239, 0.75);
  border-color: rgba(255, 209, 102, 0.28);
  background: rgba(55, 24, 62, 0.45);
}

body[data-master-world="freiraum"] .mv4-worlds button.is-active {
  color: #24142f;
  background: linear-gradient(135deg, #ffd166, #ff8bbd);
  box-shadow: 0 10px 32px rgba(255, 111, 174, 0.22);
}

body[data-master-world="freiraum"] .mv4-fx,
body[data-master-world="freiraum"] .mv4-flag,
body[data-master-world="freiraum"] .sound-toggle {
  color: rgba(255, 248, 239, 0.85);
  border-color: rgba(255, 209, 102, 0.35);
  background: rgba(55, 24, 62, 0.45);
}

body[data-master-world="freiraum"] .mv4-fx[aria-pressed="true"],
body[data-master-world="freiraum"] .mv4-fx.is-on {
  border-color: rgba(255, 209, 102, 0.55);
  color: #ffd166;
}

@media (max-width: 1024px) {
  .mv4-bar {
    gap: 6px;
    padding: 8px 10px;
    padding-top: calc(8px + env(safe-area-inset-top, 0px));
    align-items: center;
  }

  .mv4-worlds {
    order: 2;
    flex: 1 1 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px;
    padding-left: 8px;
    padding-bottom: 2px;
    mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 10px), transparent 100%);
    -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 10px), transparent 100%);
  }

  .mv4-worlds::-webkit-scrollbar {
    display: none;
  }

  .mv4-worlds button {
    flex: 0 0 auto;
    padding: 7px 11px;
    font-size: 10px;
    letter-spacing: 0.03em;
    white-space: nowrap;
  }

  .mv4-actions {
    order: 1;
    margin-left: auto;
    gap: 5px;
    flex-wrap: nowrap;
  }

  .mv4-fx {
    font-size: 9px;
    padding: 5px 8px;
    font-weight: 700;
    letter-spacing: 0.02em;
    min-height: 28px;
  }

  .mv4-flags {
    gap: 4px;
  }

  .mv4-flag {
    width: 30px;
    height: 22px;
    padding: 1px;
  }

  .mv4-flag img {
    width: 24px;
    height: 16px;
  }

  .mv4-frame {
    top: var(--bar-h, 88px) !important;
    height: calc(100dvh - var(--bar-h, 88px)) !important;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .mv4-worlds button {
    padding: 8px 13px;
    font-size: 11px;
  }

  .mv4-fx {
    font-size: 10px;
    padding: 6px 10px;
  }

  .mv4-flag {
    width: 34px;
    height: 24px;
  }

  .mv4-flag img {
    width: 26px;
    height: 17px;
  }
}

@media (max-width: 480px) {
  .mv4-bar {
    padding: 6px 8px;
    padding-top: calc(6px + env(safe-area-inset-top, 0px));
  }

  .mv4-worlds button {
    padding: 6px 9px;
    font-size: 9px;
    min-height: 28px;
  }

  .mv4-fx {
    font-size: 8px;
    padding: 4px 7px;
    min-height: 26px;
  }

  .mv4-flag {
    width: 28px;
    height: 20px;
  }

  .mv4-flag img {
    width: 22px;
    height: 14px;
  }
}

/* MULTIVERSUM-Portal-Overlay (Master-Shell) */
.mv-transition {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.mv-transition.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}

.mv-transition__bg,
.mv-transition__portal,
.mv-transition__title {
  position: absolute;
}

.mv-transition__bg {
  inset: 0;
}

.mv-transition__portal {
  left: 50%;
  top: 50%;
  width: min(72vw, 420px);
  height: min(72vw, 420px);
  transform: translate(-50%, -50%) scale(0.2);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.mv-transition__title {
  left: 50%;
  top: 58%;
  transform: translate(-50%, 0);
  font-size: clamp(28px, 6vw, 48px);
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  text-align: center;
  width: 100%;
}

.mv-transition.is-active .mv-transition__title {
  animation: mv4-title-in 1.85s ease forwards;
}

@keyframes mv4-title-in {
  0%, 35% { opacity: 0; transform: translate(-50%, 24px); }
  50%, 82% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -12px); }
}