:root{
  /* Default (Black theme values) */
  --bg:#0e1117; --panel:#111827; --fg:#e5e7eb;
  --accent:#82b1ff; --accent-2:#34d399; --border:#1f2937;
  --tint:1;
  --user:#93c5fd; --bot:#a7f3d0;
  --muted:#9aa4b2;

  --card: color-mix(in oklab, var(--panel) 88%, black 12%);
  --shadow: 0 18px 45px rgba(0,0,0,.35);
  --shadow-soft: 0 10px 24px rgba(0,0,0,.28);
  --ring: 0 0 0 3px color-mix(in oklab, var(--accent) 45%, transparent);
  --radius: 18px;
  --radius-sm: 14px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

/* ================== THEMES (NO CHRISTMAS) ================== */
body[data-theme="white"]{
  --bg:#ffffff;
  --panel:#f3f4f6;
  --fg:#111827;
  --accent:#2563eb;
  --accent-2:#16a34a;
  --border:#e5e7eb;
  --user:#2563eb;
  --bot:#16a34a;
  --muted:#6b7280;
}

body[data-theme="black"]{
  --bg:#0e1117;
  --panel:#111827;
  --fg:#e5e7eb;
  --accent:#82b1ff;
  --accent-2:#34d399;
  --border:#1f2937;
  --user:#93c5fd;
  --bot:#a7f3d0;
  --muted:#9aa4b2;
}

body[data-theme="desert"]{
  --bg:#1b140f;
  --panel:#2a1e17;
  --fg:#f3e7c9;
  --accent:#f59e0b;
  --accent-2:#ef4444;
  --border:#3a2b1b;
  --user:#c08457;
  --bot:#f59e0b;
  --muted:#c7b396;
}

body[data-theme="neon"]{
  --bg:#050505;
  --panel:#0a0a12;
  --fg:#e5ffff;
  --accent:#00fff7;
  --accent-2:#ff40c2;
  --border:#1f2933;
  --user:#ff40c2;
  --bot:#00fff7;
  --muted:#9fe7e6;
}

html, body { height: 100%; }
* { box-sizing: border-box; }

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,"Apple Color Emoji","Segoe UI Emoji",sans-serif;
  color:var(--fg); background:var(--bg);
  display:grid; grid-template-rows:auto 1fr auto;
  min-height:100vh;
  transition: background .3s ease, color .3s ease;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

:where(button, a, input, textarea, label).focusable:focus-visible,
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: none;
  box-shadow: var(--ring);
  border-color: color-mix(in oklab, var(--accent) 55%, var(--border));
}

::selection{ background: color-mix(in oklab, var(--accent) 30%, transparent); }

header{
  display:flex; align-items:center; gap:14px;
  padding: clamp(10px,2vh,16px) clamp(14px,3vw,26px);
  border-bottom:1px solid var(--border);
  background:
    linear-gradient(180deg,
      color-mix(in oklab, var(--panel) 92%, transparent) 0%,
      color-mix(in oklab, var(--panel) 100%, transparent) 100%);
  position: sticky; top:0; z-index:5;
  backdrop-filter: blur(10px);
}
header h1{
  margin:0;
  letter-spacing:.2px;
  font-size:clamp(18px,2.2vw,26px);
  cursor: default;
  user-select: none;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
header h1 a { color: inherit; text-decoration: none; }

header .whoami{
  margin-left:auto;
  font-size:12.5px;
  opacity:.95;
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
  justify-content:flex-end;
}
header .whoami a{
  color:var(--fg);
  text-decoration:none;
  opacity:.92;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid transparent;
  transition: background .16s var(--ease), border-color .16s var(--ease), transform .12s var(--ease);
}
header .whoami a:hover{
  background: color-mix(in oklab, var(--panel) 70%, var(--accent) 10%);
  border-color: color-mix(in oklab, var(--border) 60%, var(--accent) 20%);
  transform: translateY(-1px);
}
header .whoami .chip{
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  background: color-mix(in oklab, var(--panel) 85%, black 15%);
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}

.devBadge{
  display:none;
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  background: color-mix(in oklab, var(--panel) 80%, var(--accent) 10%);
  font-size:12px;
  opacity:.98;
  white-space:nowrap;
  box-shadow: 0 10px 20px rgba(0,0,0,.22);
}
.devBadge b{ color:var(--fg); letter-spacing:.4px; }
body.dev .devBadge{ display:inline-flex; gap:8px; align-items:center; }

.page{
  height:100%;
  display:grid;
  grid-template-columns: 1fr;
  justify-content:center;
  padding: clamp(10px, 2vh, 22px) clamp(12px, 3vw, 24px);
  box-sizing:border-box;
  gap: 14px;
  overflow: hidden;
  max-width: 1200px;
  margin: 0 auto;
}

/* Specific layout for Home page which has 2 columns */
.page.home-layout {
}
@media (min-width: 980px){
  .page.home-layout{
    grid-template-columns: 360px minmax(0, 1fr);
    align-items: start;
  }
}

.controls{
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:10px;
  min-height:0;
}

#uploadBox{
  border:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, black 8%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  border-radius: var(--radius);
  padding:clamp(14px,1.2vw,18px);
  box-shadow: 0 10px 24px rgba(0,0,0,.28);
  position: relative;
  overflow: hidden;
}
#uploadBox::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(800px 280px at 10% 0%,
    color-mix(in oklab, var(--accent) 18%, transparent),
    transparent 55%);
  opacity:.9;
  pointer-events:none;
}
#uploadBox > *{ position:relative; z-index:1; }

#uploadBox b{
  font-size:clamp(14px,1.2vw,16px);
  letter-spacing:.2px;
}

#uploadBox input[type=file]{ margin-top:10px; color:var(--fg); width:100%; }
#uploadBox input[type=file]::file-selector-button{
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 72%, var(--accent) calc(16% * var(--tint)));
  color:var(--fg);
  border-radius: 12px;
  padding:8px 12px;
  cursor:pointer;
  transition: transform .08s var(--ease), box-shadow .16s var(--ease), border-color .16s var(--ease);
  box-shadow: 0 10px 20px rgba(0,0,0,.20);
}
#uploadBox input[type=file]::file-selector-button:hover{
  border-color: color-mix(in oklab, var(--border) 55%, var(--accent) 25%);
  box-shadow: 0 14px 28px rgba(0,0,0,.26);
  transform: translateY(-1px);
}

#uploadResult small{ color:var(--muted); display:block; margin-top:10px; line-height:1.45; }
#previews{
  margin-top:10px;
  font-size:12px;
  color:#cbd5e1;
  display:grid;
  gap:6px;
}
#previews > div{
  border:1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background: color-mix(in oklab, var(--panel) 84%, black 16%);
  padding:10px 10px;
  border-radius: 12px;
}

.saveRow{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:10px;
  font-size:12px;
  opacity:.95;
}
.saveRow input[type=checkbox]{
  width:16px; height:16px;
  accent-color: var(--accent);
}

.chatPane{
  min-height:0;
  display:grid;
  grid-template-rows: 1fr auto;
  gap:12px;
  position: relative;
}

.logWrap{ min-height:0; position: relative; }

#log{
  min-height:0;
  max-height: 60vh;
  overflow-y:auto;
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(12px, 1.4vw, 16px);
  padding-right: 34px;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 90%, black 10%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  box-shadow: var(--shadow);
  scroll-behavior: smooth;
  position: relative;
  scrollbar-width: none;
}
#log::-webkit-scrollbar{ display:none; }

#chatSlider{
  position:absolute;
  top: 12px;
  bottom: 12px;
  right: 10px;
  width: 14px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--panel) 60%, black 40%);
  border: 1px solid color-mix(in oklab, var(--border) 75%, transparent);
  box-shadow: 0 16px 30px rgba(0,0,0,.35);
  opacity: .7;
  transition: opacity .16s var(--ease), transform .16s var(--ease);
  user-select: none;
  touch-action: none;
  z-index: 40;
}
#chatSlider:hover{ opacity: .95; transform: translateX(-1px); }
#chatSlider .thumb{
  position:absolute;
  left: 2px;
  width: 8px;
  border-radius: 999px;
  top: 0;
  height: 60px;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--fg) 30%, transparent),
    color-mix(in oklab, var(--fg) 15%, transparent));
  border: 1px solid color-mix(in oklab, var(--fg) 12%, transparent);
  box-shadow: 0 12px 20px rgba(0,0,0,.35);
}

.scrollChatBtn{
  position:absolute;
  right: 42px;
  bottom: 92px;
  z-index: 60;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display:grid;
  place-items:center;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 86%, black 14%);
  color: var(--fg);
  cursor:pointer;
  box-shadow: 0 18px 35px rgba(0,0,0,.38);
  transition: transform .10s var(--ease), opacity .16s var(--ease), border-color .16s var(--ease);
  opacity: 0;
  pointer-events:none;
}
.scrollChatBtn.show{ opacity: .95; pointer-events:auto; }
.scrollChatBtn:hover{
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--border) 55%, var(--accent) 25%);
}
.scrollChatBtn:active{ transform: translateY(1px); }

.msg{
  margin: 12px 0;
  line-height:1.55;
  white-space:pre-wrap;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid color-mix(in oklab, var(--border) 75%, transparent);
  background: color-mix(in oklab, var(--panel) 86%, black 14%);
  box-shadow: 0 10px 18px rgba(0,0,0,.18);
  position: relative;
}
.msg::after{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius: inherit;
  pointer-events:none;
  background: radial-gradient(420px 160px at 10% 0%,
    color-mix(in oklab, var(--accent) 10%, transparent),
    transparent 55%);
  opacity:.65;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), rgba(0,0,0,0));
}

.user{
  color: var(--user);
  text-shadow: 0 0 10px color-mix(in oklab, var(--user) 55%, transparent);
  border-color: color-mix(in oklab, var(--user) 18%, var(--border));
  background: color-mix(in oklab, var(--panel) 78%, var(--user) 6%);
  margin-left: clamp(0px, 8vw, 90px);
}

.bot{
  color: var(--bot);
  text-shadow: 0 0 10px color-mix(in oklab, var(--bot) 55%, transparent);
  border-color: color-mix(in oklab, var(--bot) 16%, var(--border));
  background: color-mix(in oklab, var(--panel) 78%, var(--bot) 5%);
  margin-right: clamp(0px, 8vw, 90px);
}

.composer{
  display:flex;
  gap:10px;
  align-items:flex-end;
  border:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, black 8%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  border-radius: var(--radius);
  padding:10px;
  box-shadow: 0 10px 24px rgba(0,0,0,.28);
}

#q{
  flex:1;
  border:1px solid transparent;
  outline:0;
  background: color-mix(in oklab, var(--panel) 70%, black 20%);
  color:var(--fg);
  font-size: clamp(15px, 1.15vw, 18px);
  padding: 14px 14px;
  border-radius: 14px;
  resize: none;
  height: 56px;
  min-height: 56px;
  max-height: 56px;
  overflow-y: auto;
  line-height: 1.35;
  transition: border-color .16s var(--ease), box-shadow .16s var(--ease), background .16s var(--ease);
}
#q:focus{
  border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  box-shadow: var(--ring);
  background: color-mix(in oklab, var(--panel) 78%, black 22%);
}

#filesOnly{
  width:16px; height:16px;
  accent-color: var(--accent);
}

button,.btn{
  padding:11px 14px;
  border-radius: 14px;
  border:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 72%, var(--accent) calc(18% * var(--tint))),
    color-mix(in oklab, var(--panel) 85%, black 15%));
  color: var(--fg);
  cursor:pointer;
  transition: box-shadow .16s var(--ease), transform .10s var(--ease), border-color .16s var(--ease), filter .16s var(--ease);
  box-shadow: 0 12px 22px rgba(0,0,0,.22);
  white-space:nowrap;
}
button:hover,.btn:hover{
  border-color: color-mix(in oklab, var(--border) 55%, var(--accent) 30%);
  box-shadow: 0 16px 34px rgba(0,0,0,.28);
  transform: translateY(-1px);
  filter: saturate(1.06);
}
button:active,.btn:active{
  transform: translateY(1px);
  box-shadow: 0 10px 18px rgba(0,0,0,.22);
}
button:disabled,.btn:disabled{
  opacity:.55;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
  filter:none;
}

footer{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  border-top:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, transparent),
    color-mix(in oklab, var(--panel) 100%, transparent));
  padding: 10px clamp(16px, 3vw, 28px);
  font-size: 12.5px;
  color:#aeb8c6;
}
#tips{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.tip{
  opacity:.95;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid color-mix(in oklab, var(--border) 75%, transparent);
  background: color-mix(in oklab, var(--panel) 84%, black 16%);
  cursor: pointer;
  transition: transform .10s var(--ease), border-color .16s var(--ease);
}
.tip:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--border) 55%, var(--accent) 25%);
}
.tip b{ color:#d1d7e3; }

.floatingBtn{
  position:fixed; bottom:20px; right:20px; z-index:50;
  border-radius: 999px;
  width:52px; height:52px;
  display:grid; place-items:center;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 88%, black 12%);
  color:var(--fg);
  cursor:pointer;
  box-shadow: 0 18px 35px rgba(0,0,0,.38);
  transition: transform .10s var(--ease), box-shadow .16s var(--ease), border-color .16s var(--ease);
}
.floatingBtn:hover{
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--border) 55%, var(--accent) 25%);
  box-shadow: 0 22px 45px rgba(0,0,0,.42);
}
#loginBtn.floatingBtn{ right:86px; }

.settingsPanel{
  position:fixed; bottom:86px; right:20px;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, black 8%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
  z-index:100;
  width:280px;
  box-shadow: var(--shadow);
  transform:translateY(10px);
  opacity:0;
  pointer-events:none;
  transition:opacity .18s var(--ease), transform .18s var(--ease);
  font-size:14px;
  color:var(--fg);
}
.settingsPanel h3{
  margin:0 0 10px;
  font-size:14px;
  letter-spacing:.2px;
  opacity:.95;
}
.settingsPanel.open{ transform:translateY(0); opacity:1; pointer-events:auto; }

.themebar{ display:flex; flex-wrap:wrap; gap:8px; }
.swatch{
  padding:8px 10px;
  border-radius:12px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 84%, black 16%);
  cursor:pointer;
  font-size:13px;
  color:var(--fg);
  box-shadow: 0 10px 18px rgba(0,0,0,.18);
}
.swatch.active{ outline:2px solid var(--accent); outline-offset:2px; }

.tintWrap{ display:flex; gap:10px; align-items:center; margin-top:12px; }
.tintWrap input[type=range]{ width:100%; accent-color: var(--accent); }

.splash{
  position:fixed; inset:0; z-index:9999; display:grid; place-items:center;
  background: var(--bg);
  transition:opacity .5s var(--ease), visibility .5s var(--ease);
}
.splash.hidden{ opacity:0; visibility:hidden; }
.splashCard{
  width:min(640px,90vw);
  border:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 90%, black 10%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  border-radius: 24px;
  padding:24px;
  box-shadow: var(--shadow);
  text-align:center;
  color:var(--fg);
}
.logo{
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight:850;
  background: linear-gradient(90deg,
    color-mix(in oklab, var(--accent) 90%, white 10%),
    color-mix(in oklab, var(--fg) 90%, white 10%),
    color-mix(in oklab, var(--accent-2) 90%, white 10%)
  );
  -webkit-background-clip: text;
  color: transparent;
  margin-bottom: 10px;
  letter-spacing:.3px;
}
.barWrap{
  position:relative; height:14px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#00000030;
  overflow:hidden;
}
.bar{
  position:absolute; inset:0 100% 0 0;
  background: linear-gradient(90deg,
    color-mix(in oklab, var(--accent) 85%, white 15%),
    color-mix(in oklab, var(--accent-2) 85%, white 15%));
  transition:inset .25s var(--ease);
}
.bootText{ font-size:14px; color:var(--muted); min-height: 1.3em; margin-top:8px; }

.modal{
  position:fixed; inset:0; display:none; place-items:center; z-index:2000;
  background:rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
}
.modal.open{ display:grid; }

.modalCard{
  width:min(440px, 92vw);
  border:1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 90%, black 10%),
    color-mix(in oklab, var(--panel) 98%, black 2%));
  border-radius: 20px;
  padding:16px;
  box-shadow: var(--shadow);
  color:var(--fg);
}

.tabs .tabBtn{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 84%, black 16%);
  font-size:13px;
}
.tabs .tabBtn.active{
  border-color: color-mix(in oklab, var(--border) 50%, var(--accent) 35%);
  background: color-mix(in oklab, var(--panel) 78%, var(--accent) 10%);
  outline: 2px solid color-mix(in oklab, var(--accent) 45%, transparent);
  outline-offset: 2px;
}

*::-webkit-scrollbar{ width:12px; height:12px; }
*::-webkit-scrollbar-track{ background:var(--panel); }
*::-webkit-scrollbar-thumb{ background:#243044; border:3px solid var(--panel); border-radius:10px; }

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* Generalized Card Class for reuse */
.content-card {
    background: linear-gradient(180deg, color-mix(in oklab, var(--panel) 92%, black 8%), color-mix(in oklab, var(--panel) 98%, black 2%));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-soft);
}