:root {
  /* SoopTheme / Windows App Hub palette */
  --bg-deep: #000028;
  --bg-elevated: #1b1534;
  --bg-card: #23233c;
  --bg-card-hover: #2e3050;
  --bg-card-glass: rgba(35, 35, 60, 0.72);
  --bg-card-glass-hover: rgba(46, 48, 80, 0.82);
  --bg-header-glass: rgba(27, 21, 52, 0.63);
  --bg-tertiary-glass: rgba(25, 98, 105, 0.6);
  --text: #ffffff;
  --muted: #b8b8c8;
  --accent: #9b26b6;
  --accent-teal: #009999;
  --accent-teal-bright: #00cccc;
  --accent-teal-soft: rgba(0, 204, 204, 0.2);
  --border-subtle: rgba(0, 204, 204, 0.2);
  --danger: #e63946;
  --radius: 14px;
  --overlay-opacity: 0.28;
  --crossfade-ms: 850ms;
  --font: "Segoe UI", "Segoe UI Variable Text", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-deep);
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

.hub-maintenance-banner {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: center;
  padding: 12px 16px 0;
  pointer-events: none;
  animation: hub-banner-enter 0.38s ease-out both;
}

.hub-maintenance-banner-inner {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  max-width: min(640px, 100%);
  padding: 0.55rem 1.15rem 0.55rem 0.95rem;
  border-radius: 14px;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.015em;
  color: #f2fffe;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 42%),
    rgba(0, 90, 98, 0.72);
  border: 1px solid rgba(0, 220, 210, 0.38);
  box-shadow:
    0 8px 28px rgba(0, 0, 28, 0.35),
    0 1px 0 rgba(255, 255, 255, 0.12) inset,
    0 0 0 1px rgba(0, 0, 40, 0.18);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.hub-maintenance-banner-icon {
  flex-shrink: 0;
  opacity: 0.92;
}

.hub-maintenance-banner-text {
  min-width: 0;
  word-break: break-word;
}

.hub-maintenance-banner.is-warning .hub-maintenance-banner-inner {
  color: #fff8ef;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, transparent 42%),
    rgba(140, 82, 8, 0.78);
  border-color: rgba(255, 196, 90, 0.48);
  box-shadow:
    0 8px 28px rgba(0, 0, 28, 0.32),
    0 1px 0 rgba(255, 230, 180, 0.16) inset,
    0 0 0 1px rgba(60, 30, 0, 0.2);
}

.hub-maintenance-banner[hidden] {
  display: none !important;
  animation: none;
}

@keyframes hub-banner-enter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .hub-maintenance-banner {
    padding: 10px 12px 0;
  }

  .hub-maintenance-banner-inner {
    border-radius: 14px;
    padding: 0.55rem 0.95rem;
    font-size: 0.8125rem;
  }
}

/* —— Wallpaper slideshow (matches Windows dual-layer + vignette) —— */
.hub-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hub-bg-fallback {
  position: absolute;
  inset: 0;
  background: var(--bg-deep);
}

.hub-wallpaper {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity var(--crossfade-ms) ease-in-out;
  will-change: opacity;
}

.hub-wallpaper.is-visible {
  opacity: 1;
}

.hub-wallpaper-overlay {
  position: absolute;
  inset: 0;
  opacity: var(--overlay-opacity);
  background: linear-gradient(
    180deg,
    rgba(0, 0, 40, 0.6) 0%,
    rgba(0, 0, 40, 0.27) 45%,
    rgba(0, 0, 40, 0.27) 55%,
    rgba(0, 0, 40, 0.6) 100%
  );
}

.hub-ambient {
  position: absolute;
  inset: 0;
}

.hub-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.hub-orb-purple {
  background: radial-gradient(circle, rgba(155, 38, 182, 0.14) 0%, rgba(155, 38, 182, 0) 55%, transparent 100%);
}

.hub-orb-teal {
  background: radial-gradient(circle, rgba(0, 204, 204, 0.38) 0%, rgba(0, 204, 204, 0) 58%, transparent 100%);
}

.hub-orb-tr {
  width: 420px;
  height: 420px;
  top: -100px;
  left: -120px;
  right: auto;
  opacity: 0.32;
}

.hub-orb-bl {
  width: 360px;
  height: 360px;
  bottom: -80px;
  right: -110px;
  left: auto;
  opacity: 0.22;
}

.hub-orb-br {
  width: 220px;
  height: 220px;
  top: 60px;
  bottom: auto;
  right: 140px;
  opacity: 0.12;
}

/* —— Content —— */
.hub-shell {
  position: relative;
  z-index: 1;
  max-width: 1160px;
  margin: 0 auto;
  padding: 28px 36px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hub-header {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  background: var(--bg-header-glass);
  border-radius: 14px;
  padding: 18px 28px 16px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 8px 24px rgba(0, 0, 28, 0.35);
}

.hub-header::after {
  display: none;
}

.hub-header-main {
  flex: 1;
  text-align: center;
  min-width: 0;
}

.hub-greeting {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-teal);
  text-shadow: 0 0 10px rgba(0, 0, 40, 0.75);
  opacity: 0.95;
}

.hub-header h1 {
  margin: 2px 0 0;
  font-size: 2.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-shadow: 0 0 10px rgba(0, 0, 40, 0.75);
}

.hub-accent-line {
  height: 2px;
  border-radius: 1px;
  margin: 10px auto 0;
  max-width: 280px;
  opacity: 0.85;
  background: linear-gradient(90deg, #007a7a 0%, #009999 45%, #00cccc 100%);
}

.hub-sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.4;
  text-shadow: 0 0 10px rgba(0, 0, 40, 0.75);
}

.hub-machine {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.88;
  text-shadow: 0 0 10px rgba(0, 0, 40, 0.75);
}

.hub-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
  padding-top: 4px;
}

.btn {
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font: inherit;
  cursor: pointer;
}

.btn:hover { border-color: rgba(0, 204, 204, 0.55); }
.btn-ghost { background: transparent; }

/* —— App tile grid (Windows UniformGrid-style boxes) —— */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.hub-app {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card-glass);
  color: inherit;
  border-radius: 12px;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
  min-height: 100px;
  max-height: 152px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin: 6px;
}

.hub-app:hover {
  transform: scale(1.03);
  background: var(--bg-card-glass-hover);
  border-color: var(--accent-teal);
  box-shadow: 0 0 14px rgba(0, 204, 204, 0.32);
}

.hub-app:focus-visible {
  outline: 2px solid var(--accent-teal-bright);
  outline-offset: 2px;
}

.hub-app:active {
  opacity: 0.9;
}

.hub-app-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-tertiary-glass);
  border: 1px solid var(--border-subtle);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}

.hub-app-icon {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.hub-app-icon.fallback {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-teal-bright);
  background: transparent;
}

.hub-app-name {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.25;
  margin-top: 8px;
  max-width: 140px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  word-break: break-word;
}

.hub-empty, .hub-error {
  color: var(--muted);
  text-align: center;
  padding: 40px 12px;
  text-shadow: 0 0 10px rgba(0, 0, 40, 0.75);
}

.hub-error {
  color: var(--danger);
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid rgba(230, 57, 70, 0.35);
  border-radius: 12px;
  margin-bottom: 16px;
  text-shadow: none;
}

@media (max-width: 900px) {
  .hub-grid { grid-template-columns: repeat(3, 1fr); }
  .hub-shell { padding: 24px 20px 40px; }
  .hub-accent-line { margin-left: 24px; margin-right: 24px; }
}

@media (max-width: 640px) {
  .hub-grid { grid-template-columns: repeat(2, 1fr); }
  .hub-header {
    flex-direction: column;
    align-items: stretch;
  }
  .hub-actions { justify-content: center; }
  .hub-header h1 { font-size: 1.75rem; }
  .hub-app { margin: 4px; padding: 12px 10px; }
}

@media (max-width: 380px) {
  .hub-grid { grid-template-columns: 1fr 1fr; }
  .hub-app-name { max-width: 124px; font-size: 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  .hub-wallpaper { transition: none; }
  .hub-app { transition: none; }
  .hub-app:hover { transform: none; }
  .hub-maintenance-banner { animation: none; }
}