/* reset & base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: clip; }
body {
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  max-width: 100vw;
  overflow-x: clip;
  position: relative;
  z-index: 0;
}

/* Fixed Background Image Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: var(--bg-image);
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
  transform: scale(1.2) translateY(-5vh) translateZ(0); /* pushes image higher and forces hardware acceleration */
  will-change: transform, opacity;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  opacity: 0; /* Starts hidden until JS lazily loads it */
  mix-blend-mode: var(--bg-blend);
  z-index: -1;
  pointer-events: none;
  transition: opacity 0.8s ease;
}
html.bg-loaded body::before {
  opacity: var(--bg-opacity, 0.28);
}
html.hide-theme-bg body::before {
  display: none !important;
}
.wrapper { position: relative; z-index: 1; max-width: 1400px; margin: 0 auto; padding: 0 24px 80px; }

/* keyframes */
@keyframes blink       { 0%,100%{opacity:1} 50%{opacity:0.3} }
@keyframes shimmer     { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
@keyframes dots        { 0%,20%{content:'.'} 40%{content:'..'} 60%,100%{content:'...'} }
@keyframes bouncePoint { 0%,100%{transform:translateX(0)} 50%{transform:translateX(8px)} }
@keyframes fadeInOut   { 0%{opacity:0;transform:translateY(-50%) scale(0.85)} 12%{opacity:1;transform:translateY(-50%) scale(1)} 80%{opacity:1} 100%{opacity:0} }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* scrollbar */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
[data-theme="light"] ::-webkit-scrollbar-track { background: var(--surface2); }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: var(--border); }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: var(--border2); }

/* page loader */
#page-loader {
  position: fixed; inset: 0; z-index: 99999;
  background: var(--bg);
}
#page-loader::before {
  content: '';
  position: absolute; top: 0; left: 0; width: 40%; height: 2px;
  background: var(--accent);
  will-change: transform;
  animation: loader-bar 1.6s ease-in-out infinite;
}
@keyframes loader-bar {
  0%   { transform: translateX(-100%); }
  60%  { transform: translateX(150%); }
  100% { transform: translateX(275%); }
}

:root {
  /* The path to the downloaded image - injected lazily by JS */
  --bg-image: none;
  --bg-blend: normal;
}

/* update banner */
#update-banner {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 99999;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-blur2); backdrop-filter: blur(16px);
  border: 1px solid rgba(var(--accent-rgb), 0.45);
  border-radius: 12px; padding: 10px 14px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text);
  box-shadow: 0 8px 32px var(--shadow-lg), 0 0 0 1px rgba(var(--accent-rgb), 0.12);
  opacity: 0;
  white-space: nowrap;
}
.update-banner-icon { font-size: 16px; flex-shrink: 0; }
.update-banner-text { color: var(--text-dim); }
.update-banner-btn {
  background: var(--accent); border: none; border-radius: 7px;
  padding: 5px 12px; font-family: 'JetBrains Mono', monospace; font-size: 11px;
  font-weight: 700; color: #fff; cursor: pointer; letter-spacing: 0.04em;
  transition: background 0.15s, transform 0.1s;
}
.update-banner-btn:hover { background: var(--accent-light); transform: translateY(-1px); }
.update-banner-btn:active { transform: scale(0.95); }
.update-banner-close {
  background: none; border: none; color: var(--text-muted); font-size: 12px;
  cursor: pointer; padding: 2px 4px; border-radius: 4px; line-height: 1;
  transition: color 0.15s; flex-shrink: 0;
}
.update-banner-close:hover { color: var(--text); }
@media (max-width: 600px) {
  #update-banner { left: 12px; right: 12px; transform: none; bottom: 16px; white-space: normal; }
}

/* watermark */
#watermark {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 50;
  background-repeat: repeat;
  user-select: none;
  opacity: 0.12;
  filter: invert(1);
}
[data-theme='light'] #watermark {
  opacity: 0.08;
  filter: none;
}
@media (max-width: 768px) {
  #watermark { background-position: left center; }
}

/* responsive */
@media (max-width: 768px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: 1; }
  .wrapper { padding: 0 16px 60px; }
}

/* theme fade fallback — mobile / no View Transitions API
   Only transition key properties on direct children, not every element */
html.theme-fading,
html.theme-fading body,
html.theme-fading .wrapper,
html.theme-fading .controls,
html.theme-fading .stat-card,
html.theme-fading .global-progress,
html.theme-fading .section-header,
html.theme-fading .filter-btn,
html.theme-fading .search-box,
html.theme-fading #ambient-panel {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease !important;
}

/* Prevent bg image from transitioning during theme switch — it changes via CSS vars */
html.theme-fading body::before,
html.theme-transition body::before {
  transition: none !important;
}

/* view transitions */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.35s;
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  animation-fill-mode: both;
}

::view-transition-old(root) { animation-name: fade-out; }
::view-transition-new(root) { animation-name: fade-in; }

@keyframes fade-out {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* theme transition — circular clip on desktop */
html.theme-transition::view-transition-old(root),
html.theme-transition::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}
html.theme-transition::view-transition-old(root) { z-index: 1; }
html.theme-transition::view-transition-new(root) { z-index: 2; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}