/* SevinOS, neon glass desktop */

:root{
  --bg:#07070F;
  --glass:rgba(16,17,32,.62);
  --glass-hi:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.13);
  --border-soft:rgba(255,255,255,.08);
  --text:#E8EAF6;
  --muted:#9AA3C0;
  --purple:#8B5CF6;
  --cyan:#22D3EE;
  --gold:#F5C518;
  --pink:#F43F5E;
  --green:#34D399;
  --blue:#60A5FA;
  --radius:16px;
  --font-ui:'Inter',system-ui,sans-serif;
  --font-display:'Sora',var(--font-ui);
  --font-mono:'JetBrains Mono',monospace;
  --z-menubar:100;
  --z-window:200;
  --z-dock:500;
  --z-launchpad:600;
  --z-palette:700;
  --z-ctx:750;
  --z-toast:800;
  --z-boot:1000;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-ui);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;
}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
kbd{
  font-family:var(--font-mono);font-size:10.5px;color:var(--muted);
  border:1px solid var(--border-soft);border-radius:5px;padding:1px 6px;
  background:rgba(255,255,255,.04);
}

/* ---------- Boot ---------- */
#boot{
  position:fixed;inset:0;z-index:var(--z-boot);background:#050509;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:opacity .6s ease,visibility .6s;
}
#boot.done{opacity:0;visibility:hidden;pointer-events:none}
.boot-inner{width:min(460px,86vw);text-align:center}
.boot-logo{
  font-family:var(--font-display);font-weight:800;font-size:46px;letter-spacing:-1px;
  background:linear-gradient(100deg,#fff 10%,var(--purple) 55%,var(--cyan) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:26px;
}
.boot-logo span{font-weight:400}
.boot-bar{height:3px;border-radius:99px;background:rgba(255,255,255,.09);overflow:hidden;margin-bottom:22px}
.boot-fill{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--purple),var(--cyan));transition:width .3s ease}
.boot-log{
  font-family:var(--font-mono);font-size:11.5px;color:#5f6a8c;text-align:left;
  height:96px;overflow:hidden;white-space:pre-wrap;
}
.boot-log .ok{color:var(--green)}
.boot-skip{font-size:11px;color:#3d4462;margin-top:18px;letter-spacing:.4px}

/* ---------- Wallpaper ---------- */
#wallCanvas,#wallCss{position:fixed;inset:0;z-index:0}
#wallCss{pointer-events:none;opacity:0;transition:opacity .8s}
#wallCss.on{opacity:1}
#wallCss.aurora{
  background:
    radial-gradient(42% 55% at 18% 22%,rgba(139,92,246,.35),transparent 70%),
    radial-gradient(45% 60% at 82% 30%,rgba(34,211,238,.22),transparent 70%),
    radial-gradient(50% 55% at 55% 85%,rgba(244,63,94,.16),transparent 70%),
    var(--bg);
  animation:auroraShift 24s ease-in-out infinite alternate;
}
@keyframes auroraShift{
  0%{background-position:0% 0%,100% 0%,50% 100%;filter:hue-rotate(0deg)}
  100%{background-position:12% 8%,88% 12%,42% 92%;filter:hue-rotate(28deg)}
}
#wallCss.calm{background:linear-gradient(180deg,#0A0B18 0%,#07070F 60%,#0B0716 100%)}

/* ---------- Menu bar ---------- */
#menubar{
  position:fixed;top:10px;left:12px;right:12px;height:42px;z-index:var(--z-menubar);
  display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 6px;
  background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--border);border-radius:14px;
  box-shadow:0 8px 32px rgba(0,0,0,.45),inset 0 1px 0 var(--glass-hi);
}
.mb-left,.mb-right{display:flex;align-items:center;gap:6px}
.mb-logo{
  font-family:var(--font-display);font-weight:800;font-size:15px;padding:5px 10px;border-radius:9px;
  background:linear-gradient(100deg,#fff 5%,var(--purple) 60%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  transition:opacity .2s;
}
.mb-logo span{font-weight:400}
.mb-logo:hover{opacity:.8}
.mb-app{font-size:13px;font-weight:600;color:var(--muted);max-width:34vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mb-btn{
  display:flex;align-items:center;gap:7px;padding:6px 9px;border-radius:9px;color:var(--muted);
  transition:color .2s,background .2s;min-height:32px;
}
.mb-btn:hover{color:var(--text);background:rgba(255,255,255,.07)}
.mb-btn svg{width:16px;height:16px}
.mb-clock{
  font-size:12.5px;font-weight:600;color:var(--text);padding:0 10px;font-variant-numeric:tabular-nums;
  white-space:nowrap;
}

/* ---------- Desktop icons ---------- */
#desktop{position:fixed;inset:60px 0 90px;z-index:1}
#deskIcons{
  display:grid;grid-auto-flow:column;
  grid-template-rows:repeat(auto-fill,104px);
  grid-auto-columns:96px;gap:6px;height:100%;padding:14px 18px;justify-content:start;
}
.dicon{
  display:flex;flex-direction:column;align-items:center;gap:7px;padding:10px 4px;border-radius:12px;
  transition:background .18s;width:96px;
}
.dicon:hover{background:rgba(255,255,255,.06)}
.dicon .ic{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-soft);
  box-shadow:0 6px 18px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.14);
}
.dicon .ic svg{width:25px;height:25px;stroke:#fff}
.dicon .lb{
  font-size:11.5px;font-weight:500;color:var(--text);text-align:center;line-height:1.25;
  text-shadow:0 1px 4px rgba(0,0,0,.8);max-width:92px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}

/* ---------- Hero app (SevinHub flagship) ---------- */
.ic.hero,.dock-ic.hero{position:relative;overflow:visible}
.ic.hero::before,.dock-ic.hero::before{
  content:"";position:absolute;inset:-3.5px;border-radius:inherit;z-index:-1;
  background:conic-gradient(#F5C518,#F43F5E,#8B5CF6,#22D3EE,#34D399,#F5C518);
  animation:heroHue 3.5s linear infinite;
  filter:blur(.5px);
}
.ic.hero,.dock-ic.hero{
  animation:heroGlow 2.6s ease-in-out infinite;
}
@keyframes heroHue{to{filter:hue-rotate(360deg) blur(.5px)}}
@keyframes heroGlow{
  0%,100%{box-shadow:0 0 14px rgba(245,197,24,.55),0 6px 18px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.2)}
  50%{box-shadow:0 0 26px rgba(139,92,246,.75),0 6px 18px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.25)}
}
body.no-motion .ic.hero::before,body.no-motion .dock-ic.hero::before{animation:none}
body.no-motion .ic.hero,body.no-motion .dock-ic.hero{animation:none;box-shadow:0 0 18px rgba(245,197,24,.5),0 6px 18px rgba(0,0,0,.4)}

/* ---------- Windows ---------- */
.window{
  position:absolute;min-width:320px;min-height:220px;border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  border:1px solid var(--border);box-shadow:0 24px 80px rgba(0,0,0,.6),inset 0 1px 0 var(--glass-hi);
  display:flex;flex-direction:column;overflow:hidden;
  animation:winIn .22s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes winIn{from{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:none}}
.window.closing{transition:opacity .18s,transform .18s;opacity:0;transform:scale(.94) translateY(8px)}
.window.minimizing{transition:opacity .26s,transform .26s cubic-bezier(.5,0,.8,.4);opacity:0;transform:scale(.25) translateY(48vh)}
.window.focused{border-color:rgba(139,92,246,.45);box-shadow:0 24px 80px rgba(0,0,0,.65),0 0 0 1px rgba(139,92,246,.18),0 0 42px rgba(139,92,246,.14),inset 0 1px 0 var(--glass-hi)}
.window.maxed{border-radius:0;}

.titlebar{
  height:42px;flex:none;display:flex;align-items:center;gap:10px;padding:0 10px;
  border-bottom:1px solid var(--border-soft);cursor:grab;user-select:none;touch-action:none;
  background:rgba(255,255,255,.025);
}
.titlebar:active{cursor:grabbing}
.tl-group{display:flex;gap:7px;padding:0 2px}
.tl{
  width:13px;height:13px;border-radius:50%;padding:0;display:flex;align-items:center;justify-content:center;
  transition:filter .15s;position:relative;
}
.tl:hover{filter:brightness(1.25)}
.tl svg{width:8px;height:8px;stroke:rgba(0,0,0,.55);stroke-width:2.6;opacity:0;transition:opacity .12s}
.tl:hover svg,.titlebar:hover .tl svg{opacity:1}
.tl.close{background:#FF5F57}.tl.min{background:#FEBC2E}.tl.max{background:#28C840}
.win-title{
  flex:1;display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}
.win-title svg{width:15px;height:15px}
.win-ext{color:var(--muted);padding:6px;border-radius:8px;transition:color .2s,background .2s;min-width:30px;min-height:30px;display:flex;align-items:center;justify-content:center}
.win-ext:hover{color:var(--text);background:rgba(255,255,255,.08)}
.win-ext svg{width:15px;height:15px}

.win-body{flex:1;position:relative;background:#0A0B16}
.win-body iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#0A0B16}
.win-loading{
  position:absolute;inset:0;display:flex;flex-direction:column;gap:14px;align-items:center;justify-content:center;
  color:var(--muted);font-size:13px;background:#0A0B16;transition:opacity .3s;
}
.win-loading.off{opacity:0;pointer-events:none}
.spinner{
  width:34px;height:34px;border-radius:50%;
  border:3px solid rgba(139,92,246,.2);border-top-color:var(--purple);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.resize-r,.resize-b,.resize-c{position:absolute;z-index:5}
.resize-r{top:0;right:-3px;width:8px;height:100%;cursor:ew-resize}
.resize-b{bottom:-3px;left:0;height:8px;width:100%;cursor:ns-resize}
.resize-c{right:-3px;bottom:-3px;width:18px;height:18px;cursor:nwse-resize}

#snapPreview{
  position:absolute;z-index:150;border-radius:var(--radius);pointer-events:none;opacity:0;
  background:rgba(139,92,246,.14);border:1.5px solid rgba(139,92,246,.5);
  backdrop-filter:blur(4px);transition:opacity .15s,left .12s,top .12s,width .12s,height .12s;
}
#snapPreview.on{opacity:1}

/* System app content */
.sys-pane{position:absolute;inset:0;overflow:auto;padding:26px 28px;background:#0A0B16}
.sys-pane h2{font-family:var(--font-display);font-size:19px;margin-bottom:4px}
.sys-pane .sub{color:var(--muted);font-size:13px;margin-bottom:20px}
.wall-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-bottom:26px}
.wall-thumb{
  height:92px;border-radius:12px;border:2px solid var(--border-soft);position:relative;overflow:hidden;
  transition:border-color .2s,transform .2s;padding:0;
}
.wall-thumb:hover{transform:translateY(-2px)}
.wall-thumb.active{border-color:var(--purple);box-shadow:0 0 18px rgba(139,92,246,.35)}
.wall-thumb .nm{
  position:absolute;left:0;right:0;bottom:0;padding:5px 9px;font-size:11px;font-weight:600;text-align:left;
  background:linear-gradient(transparent,rgba(0,0,0,.75));
}
.wt-beams{background:radial-gradient(60% 80% at 30% 30%,rgba(139,92,246,.5),transparent),radial-gradient(50% 70% at 75% 65%,rgba(34,211,238,.4),transparent),#07070F}
.wt-aurora{background:radial-gradient(50% 60% at 25% 25%,rgba(139,92,246,.55),transparent),radial-gradient(50% 60% at 78% 35%,rgba(34,211,238,.4),transparent),radial-gradient(50% 55% at 55% 85%,rgba(244,63,94,.3),transparent),#07070F}
.wt-stars{background:radial-gradient(1.5px 1.5px at 20% 30%,#fff,transparent),radial-gradient(1px 1px at 60% 20%,#fff,transparent),radial-gradient(1.5px 1.5px at 80% 60%,#9ad,transparent),radial-gradient(1px 1px at 40% 70%,#fff,transparent),#060614}
.wt-calm{background:linear-gradient(180deg,#0A0B18,#0B0716)}
.set-row{
  display:flex;align-items:center;justify-content:space-between;gap-4:14px;
  padding:14px 0;border-top:1px solid var(--border-soft);
}
.set-row .t{font-weight:600;font-size:14px}
.set-row .d{color:var(--muted);font-size:12.5px}
.switch{
  width:46px;height:26px;border-radius:99px;background:rgba(255,255,255,.12);position:relative;flex:none;
  transition:background .2s;padding:0;
}
.switch::after{
  content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;
  transition:transform .2s;
}
.switch[aria-checked="true"]{background:var(--purple)}
.switch[aria-checked="true"]::after{transform:translateX(20px)}
.btn-danger{
  margin-top:6px;padding:9px 16px;border-radius:10px;font-weight:600;font-size:13px;
  background:rgba(244,63,94,.14);color:#FB7185;border:1px solid rgba(244,63,94,.3);
  transition:background .2s;
}
.btn-danger:hover{background:rgba(244,63,94,.24)}

.about-pane{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:6px}
.about-logo{
  font-family:var(--font-display);font-weight:800;font-size:40px;letter-spacing:-1px;
  background:linear-gradient(100deg,#fff 10%,var(--purple) 55%,var(--cyan) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.about-logo span{font-weight:400}
.about-ver{font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.about-desc{max-width:380px;color:var(--muted);font-size:13.5px;margin-top:10px}
.about-meta{margin-top:18px;display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--muted)}
.about-meta b{color:var(--text);font-weight:600}

/* Terminal */
.term{
  position:absolute;inset:0;background:#05060D;font-family:var(--font-mono);font-size:12.5px;line-height:1.65;
  padding:14px 16px;overflow:auto;cursor:text;
}
.term-out{white-space:pre-wrap;word-break:break-word}
.term-out .p{color:var(--cyan)}
.term-out .ok{color:var(--green)}
.term-out .err{color:#FB7185}
.term-out .hl{color:var(--gold)}
.term-line{display:flex;gap:8px}
.term-line .p{color:var(--cyan);flex:none}
.term-in{
  flex:1;background:none;border:0;color:var(--text);font:inherit;caret-color:var(--purple);
}
.term-in:focus{outline:none}

/* ---------- Dock ---------- */
#dock{
  position:fixed;bottom:12px;left:0;right:0;z-index:var(--z-dock);
  display:flex;justify-content:center;pointer-events:none;
}
#dockInner{
  pointer-events:auto;display:flex;align-items:flex-end;gap:8px;padding:9px 14px;
  background:var(--glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--border);border-radius:20px;
  box-shadow:0 12px 42px rgba(0,0,0,.55),inset 0 1px 0 var(--glass-hi);
  max-width:calc(100vw - 24px);overflow-x:auto;scrollbar-width:none;
}
#dockInner::-webkit-scrollbar{display:none}
.dock-item{position:relative;display:flex;flex-direction:column;align-items:center;padding:0}
.dock-ic{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-soft);
  box-shadow:0 5px 16px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.16);
  transition:transform .18s cubic-bezier(.2,.8,.3,1.4);transform-origin:bottom center;
}
.dock-item:hover .dock-ic{transform:scale(1.22) translateY(-6px)}
.dock-ic svg{width:22px;height:22px;stroke:#fff}
.dock-dot{
  width:4px;height:4px;border-radius:50%;background:var(--cyan);margin-top:3px;opacity:0;
  box-shadow:0 0 6px var(--cyan);transition:opacity .2s;
}
.dock-item.running .dock-dot{opacity:1}
.dock-sep{width:1px;align-self:stretch;background:var(--border-soft);margin:2px 3px}
.dock-tip{
  position:absolute;bottom:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(4px);
  background:rgba(10,11,22,.92);border:1px solid var(--border);border-radius:8px;
  padding:4px 10px;font-size:11.5px;font-weight:600;white-space:nowrap;pointer-events:none;
  opacity:0;transition:opacity .15s,transform .15s;
}
.dock-item:hover .dock-tip{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Overlays ---------- */
.overlay[hidden]{display:none}
.overlay{
  position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;
  background:rgba(5,5,10,.55);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  animation:ovIn .2s ease;
}
@keyframes ovIn{from{opacity:0}to{opacity:1}}
#launchpad{z-index:var(--z-launchpad);padding:9vh 4vw 4vh;overflow:auto}
#lpSearch{
  width:min(420px,90vw);padding:12px 18px;border-radius:14px;font:inherit;font-size:15px;color:var(--text);
  background:rgba(255,255,255,.07);border:1px solid var(--border);margin-bottom:5vh;
}
#lpSearch::placeholder{color:var(--muted)}
#lpGrid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:10px;
  width:min(880px,94vw);
}
#lpGrid .dicon .ic{width:60px;height:60px;border-radius:16px}
#lpGrid .dicon .ic svg{width:28px;height:28px}
#lpGrid .dicon{width:auto}
#lpGrid .dicon .lb{max-width:none}

#palette{z-index:var(--z-palette);justify-content:flex-start;padding-top:16vh}
.pal-box{
  width:min(600px,92vw);border-radius:18px;overflow:hidden;
  background:var(--glass);border:1px solid var(--border);
  box-shadow:0 30px 90px rgba(0,0,0,.65),0 0 60px rgba(139,92,246,.1);
  animation:palIn .18s cubic-bezier(.2,.9,.3,1.15);
}
@keyframes palIn{from{opacity:0;transform:scale(.96) translateY(-8px)}to{opacity:1;transform:none}}
.pal-input-row{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--border-soft)}
.pal-input-row svg{width:18px;height:18px;color:var(--muted)}
#palInput{flex:1;background:none;border:0;font:inherit;font-size:16px;color:var(--text)}
#palInput:focus{outline:none}
#palInput::placeholder{color:var(--muted)}
#palList{list-style:none;max-height:46vh;overflow:auto;padding:7px}
#palList li{
  display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:11px;cursor:pointer;
  font-size:14px;font-weight:500;color:var(--muted);transition:background .12s,color .12s;
}
#palList li svg{width:17px;height:17px}
#palList li .tag{margin-left:auto;font-size:10.5px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;color:#5f6a8c}
#palList li.sel{background:rgba(139,92,246,.18);color:var(--text)}
#palList li.sel .tag{color:var(--purple)}

/* ---------- Context menu ---------- */
#ctxmenu{
  position:fixed;z-index:var(--z-ctx);list-style:none;min-width:210px;padding:6px;
  background:var(--glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--border);border-radius:13px;box-shadow:0 18px 50px rgba(0,0,0,.6);
  animation:palIn .14s ease;
}
#ctxmenu li{
  display:flex;align-items:center;gap:10px;padding:8px 11px;border-radius:9px;cursor:pointer;
  font-size:13px;font-weight:500;color:var(--text);transition:background .12s;
}
#ctxmenu li:hover{background:rgba(139,92,246,.18)}
#ctxmenu li svg{width:15px;height:15px;color:var(--muted)}
#ctxmenu li.sep{padding:0;height:1px;background:var(--border-soft);margin:5px 8px;cursor:default}

/* ---------- Toasts ---------- */
#toasts{position:fixed;top:64px;right:16px;z-index:var(--z-toast);display:flex;flex-direction:column;gap:9px}
.toast{
  padding:11px 16px;border-radius:12px;font-size:13px;font-weight:500;max-width:320px;
  background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--border);box-shadow:0 12px 36px rgba(0,0,0,.5);
  animation:toastIn .25s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes toastIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
.toast.out{transition:opacity .3s,transform .3s;opacity:0;transform:translateX(24px)}

/* ---------- Mobile ---------- */
@media (max-width:767px){
  #menubar{left:8px;right:8px;top:8px}
  .mb-palette kbd,.mb-app{display:none}
  #desktop{inset:56px 0 82px}
  #deskIcons{grid-auto-columns:84px;grid-template-rows:repeat(auto-fill,96px);padding:10px}
  .dicon{width:84px}
  .window{border-radius:0}
  .resize-r,.resize-b,.resize-c{display:none}
  .dock-ic{width:42px;height:42px}
  .dock-item:hover .dock-ic{transform:none}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}
body.no-motion #wallCss.aurora{animation:none}