/* Cyberverse Quiz – responsive corporate base */
:root {
  --theme: #0b3d5c;
  --secondary: #1a7a9c;
  --text: #ffffff;
  --surface: #0a1628;
  --muted: #64748b;
  --danger: #dc2626;
  --success: #059669;
  --warning: #d97706;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  font-family: "Montserrat", "Segoe UI", sans-serif;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.bg-branded {
  background-size: var(--img-fit, cover);
  background-position: var(--img-place, center);
  background-repeat: no-repeat;
}

.overlay {
  background: rgba(10, 22, 40, var(--overlay-opacity, 0.55));
}

.touch-target {
  min-height: 44px;
  min-width: 44px;
}

.btn-brand {
  background: var(--theme);
  color: var(--text);
  border: 2px solid var(--theme);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-brand:active {
  transform: scale(0.98);
}

.btn-brand.outline {
  background: transparent;
  color: var(--theme);
}

.btn-brand.gradient {
  background: linear-gradient(135deg, var(--theme), var(--secondary));
  border: none;
}

.progress-track {
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.option-card {
  min-height: 52px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.option-card.answer-correct {
  border-color: #059669;
  background: rgba(5, 150, 105, 0.18);
}

.option-card.answer-wrong {
  border-color: #dc2626;
  background: rgba(220, 38, 38, 0.15);
}

.time-up-anim {
  animation: pulseScale 1.2s ease-in-out infinite;
}

@keyframes pulseScale {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.08);
    opacity: 0.85;
  }
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeSlideIn 0.45s ease forwards;
}

.led-scroll {
  animation: scrollUp 40s linear infinite;
}

@keyframes scrollUp {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-50%);
  }
}

.admin-nav-open {
  display: block !important;
}

@media (max-width: 767px) {
  .admin-sidebar {
    display: none;
  }
  .admin-sidebar.open {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 50;
  }
}

/* Prevent keyboard overlap on mobile forms */
@supports (height: 100dvh) {
  .quiz-shell {
    min-height: 100dvh;
  }
}

input,
select,
textarea,
button {
  font-size: 16px; /* avoid iOS zoom */
}

.no-scroll-x {
  max-width: 100vw;
  overflow-x: hidden;
}

/* —— Branding & Appearance shells —— */
.branded-screen {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: #0a1628;
}

.branded-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--portrait-bg, none);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: var(--bg-opacity, 1);
  filter: blur(var(--bg-blur, 0px));
  transform: scale(1.02); /* avoid blur edge gaps */
  pointer-events: none;
}

.branded-screen[data-surface="mobile"] .branded-bg {
  background-image: var(--mobile-background, var(--portrait-bg, none));
}

.branded-screen[data-surface="led"] .branded-bg {
  background-image: var(--led-background, var(--landscape-bg, none));
}

.branded-logo {
  height: auto;
  object-fit: contain;
  max-height: 18vh;
}

.branded-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: color-mix(
    in srgb,
    var(--overlay-color, #0a1628) calc(var(--overlay-opacity, 0.55) * 100%),
    transparent
  );
  pointer-events: none;
}

/* Fallback when color-mix unsupported */
@supports not (background: color-mix(in srgb, #000 50%, transparent)) {
  .branded-overlay {
    background: var(--overlay-color, #0a1628);
    opacity: var(--overlay-opacity, 0.55);
  }
}

.branded-logo-slot {
  position: absolute;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: max(0.75rem, var(--safe-top)) max(0.75rem, var(--safe-right))
    max(0.75rem, var(--safe-bottom)) max(0.75rem, var(--safe-left));
  pointer-events: none;
}

.branded-logo-slot.logo-transparent {
  background: transparent;
}

.branded-logo {
  object-fit: contain;
  display: block;
  max-height: 20vh;
}

.logo-pos-top_left {
  top: 0;
  left: 0;
  align-items: flex-start;
}
.logo-pos-top_center {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  align-items: center;
}
.logo-pos-top_right {
  top: 0;
  right: 0;
  align-items: flex-end;
}
.logo-pos-bottom_left {
  bottom: 0;
  left: 0;
  align-items: flex-start;
}
.logo-pos-bottom_center {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  align-items: center;
}
.logo-pos-bottom_right {
  bottom: 0;
  right: 0;
  align-items: flex-end;
}

@media (max-width: 767px) {
  .branded-logo-slot[data-logo-mobile="top_left"] {
    top: 0;
    left: 0;
    right: auto;
    bottom: auto;
    transform: none;
    align-items: flex-start;
  }
  .branded-logo-slot[data-logo-mobile="top_center"] {
    top: 0;
    left: 50%;
    right: auto;
    bottom: auto;
    transform: translateX(-50%);
    align-items: center;
  }
  .branded-logo-slot[data-logo-mobile="top_right"] {
    top: 0;
    right: 0;
    left: auto;
    bottom: auto;
    transform: none;
    align-items: flex-end;
  }
  .branded-logo-slot[data-logo-mobile="bottom_left"] {
    bottom: 0;
    left: 0;
    top: auto;
    right: auto;
    transform: none;
    align-items: flex-start;
  }
  .branded-logo-slot[data-logo-mobile="bottom_center"] {
    bottom: 0;
    left: 50%;
    top: auto;
    right: auto;
    transform: translateX(-50%);
    align-items: center;
  }
  .branded-logo-slot[data-logo-mobile="bottom_right"] {
    bottom: 0;
    right: 0;
    top: auto;
    left: auto;
    transform: none;
    align-items: flex-end;
  }
}