:root {
  --bg: #0b0b12; --bg2: #12121c; --card: #171724; --card2: #1e1e2e; --line: #2a2a3d;
  --text: #ececf4; --muted: #8c8ca6; --accent: #8b5cf6; --accent2: #22d3ee; --danger: #ef4444;
  --radius: 14px; --side: 76px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}
[data-theme="ocean"]  { --bg:#06121c; --bg2:#0a1a28; --card:#0f2233; --card2:#142b40; --line:#1e3a52; --accent:#0ea5e9; --accent2:#2dd4bf; }
[data-theme="forest"] { --bg:#08110c; --bg2:#0d1912; --card:#122118; --card2:#182b20; --line:#23402f; --accent:#22c55e; --accent2:#a3e635; }
[data-theme="sunset"] { --bg:#140a0c; --bg2:#1c0f12; --card:#25141a; --card2:#301a21; --line:#47262f; --accent:#f97316; --accent2:#f43f5e; }
[data-theme="rose"]   { --bg:#120a12; --bg2:#1a0f1a; --card:#231424; --card2:#2e1a2f; --line:#452845; --accent:#ec4899; --accent2:#a78bfa; }
[data-theme="light"]  { --bg:#f5f5fa; --bg2:#ffffff; --card:#ffffff; --card2:#f0f0f6; --line:#e2e2ec; --text:#16161f; --muted:#6b6b80; --accent:#7c3aed; --accent2:#0891b2; color-scheme: light; }

* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; }
body { background: var(--bg); color: var(--text); overflow: hidden; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
[hidden] { display: none !important; }
.accent { background: linear-gradient(90deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub, .hint { color: var(--muted); font-size: 14px; }
.spacer { flex: 1; }

#particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

/* Sidebar */
.sidebar { position: fixed; z-index: 5; inset: 0 auto 0 0; width: var(--side); background: var(--bg2); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 14px 0; }
.brand img { width: 40px; height: 40px; margin-bottom: 14px; cursor: pointer; }
.nav-btn { width: 60px; padding: 9px 0 7px; border-radius: 12px; display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--muted); transition: .15s; }
.nav-btn span { font-size: 11px; font-weight: 500; }
.nav-btn:hover { color: var(--text); background: var(--card); }
.nav-btn.active { color: var(--text); background: color-mix(in srgb, var(--accent) 22%, transparent); }
.nav-btn.active svg { stroke: var(--accent); }

main { position: relative; z-index: 1; margin-left: var(--side); height: 100%; }
.view { display: none; height: 100%; overflow-y: auto; padding: 32px 40px 60px; }
.view.active { display: block; animation: fade .2s ease; }
#view-browser.active, #view-ai.active { display: flex; padding: 0; overflow: hidden; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } }

/* Inputs */
.search { display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0 14px; height: 42px; min-width: 240px; }
.search:focus-within, .urlbar:focus-within { border-color: var(--accent); }
.search svg { color: var(--muted); }
.search input, .urlbar input { flex: 1; min-width: 0; background: none; border: 0; outline: 0; height: 100%; }
.search.big { height: 56px; border-radius: 16px; max-width: 640px; width: 100%; margin: 0 auto; font-size: 17px; box-shadow: 0 10px 40px -10px rgba(0,0,0,.5); }
select, .field input { background: var(--card); border: 1px solid var(--line); border-radius: 10px; height: 40px; padding: 0 12px; outline: 0; }
select:focus, .field input:focus { border-color: var(--accent); }
.btn { background: var(--accent); color: #fff; border-radius: 10px; height: 40px; padding: 0 16px; font-weight: 600; transition: .15s; white-space: nowrap; }
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: var(--card2); color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.ibtn { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--muted); }
.ibtn:hover { background: var(--card2); color: var(--text); }
.ibtn.on { color: #facc15; } .ibtn.on svg { fill: #facc15; }

/* Home */
.hero { text-align: center; padding: 6vh 0 28px; }
.clock { font-size: 15px; color: var(--muted); letter-spacing: .05em; margin-bottom: 8px; font-variant-numeric: tabular-nums; }
.hero h1 { font-size: clamp(40px, 7vw, 72px); font-weight: 800; letter-spacing: -.03em; }
.hero .sub { margin: 8px 0 26px; font-size: 16px; }
.chips { display: flex; gap: 10px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.chip { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: 14px; }
.chip:hover { border-color: var(--accent); }
.row-title { font-size: 18px; margin: 30px 0 14px; }

/* Page header */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 24px; }
.page-head h1 { font-size: 32px; letter-spacing: -.02em; }
.tools { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.seg { display: flex; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 3px; }
.seg button { padding: 6px 12px; border-radius: 8px; font-size: 14px; color: var(--muted); }
.seg button.on { background: var(--card2); color: var(--text); }

/* Games */
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.game-row { display: grid; grid-auto-flow: column; grid-auto-columns: 160px; gap: 16px; overflow-x: auto; padding-bottom: 8px; }
.game { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--card); border: 1px solid var(--line); cursor: pointer; transition: .18s; content-visibility: auto; contain-intrinsic-size: 160px 200px; }
.game:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 12px 30px -12px color-mix(in srgb, var(--accent) 60%, transparent); }
.game img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; background: var(--card2); }
.game .name { padding: 10px 12px; font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.game .fav { position: absolute; top: 8px; right: 8px; width: 30px; height: 30px; border-radius: 8px; background: rgba(0,0,0,.55); display: grid; place-items: center; opacity: 0; transition: .15s; color: #fff; }
.game:hover .fav, .game .fav.on { opacity: 1; }
.game .fav svg { width: 16px; height: 16px; }
.game .fav.on svg { fill: #facc15; stroke: #facc15; }
.empty { text-align: center; color: var(--muted); padding: 60px 0; }

/* Apps */
.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.app-grid.small { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); max-width: 1000px; margin: 0 auto; }
.app { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 12px; display: flex; flex-direction: column; align-items: center; gap: 10px; cursor: pointer; transition: .15s; text-align: center; }
.app:hover { border-color: var(--accent); transform: translateY(-2px); }
.app .icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; font-size: 20px; color: #fff; overflow: hidden; }
.app .icon img { width: 32px; height: 32px; }
.app small { font-size: 13px; font-weight: 600; }
.app-grid.small .app { padding: 14px 8px; }
.app-grid.small .app .icon { width: 40px; height: 40px; }
.app .del { position: absolute; top: 6px; right: 6px; font-size: 14px; color: var(--muted); opacity: 0; }
.app:hover .del { opacity: 1; }

/* Browser */
.browser { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.tabbar { display: flex; gap: 4px; padding: 8px 10px 0; background: var(--bg2); overflow-x: auto; }
.tab { display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 10px 0 14px; border-radius: 10px 10px 0 0; background: var(--card); color: var(--muted); font-size: 13px; width: 200px; flex: none; cursor: pointer; }
.tab.active { background: var(--card2); color: var(--text); }
.tab span { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tab button { width: 20px; height: 20px; border-radius: 6px; line-height: 1; }
.tab button:hover { background: var(--line); }
.newtab { width: 36px; height: 36px; font-size: 20px; color: var(--muted); border-radius: 10px; flex: none; }
.newtab:hover { background: var(--card); color: var(--text); }
.toolbar { display: flex; align-items: center; gap: 4px; padding: 8px 10px; background: var(--card2); border-bottom: 1px solid var(--line); }
.urlbar { flex: 1; display: flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; background: var(--bg); border: 1px solid var(--line); border-radius: 999px; margin: 0 6px; }
.urlbar svg { width: 15px; height: 15px; color: var(--muted); }
.frames { flex: 1; position: relative; background: var(--bg); }
.frames iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #fff; }
.newtab-page { position: absolute; inset: 0; z-index: 2; background: var(--bg); padding: 12vh 24px 40px; text-align: center; overflow-y: auto; }
.newtab-page h2 { font-size: 44px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 24px; }
.newtab-page .app-grid { margin-top: 30px; }
.loading { position: absolute; inset: 0; z-index: 3; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 70%, transparent); }
.spinner { width: 36px; height: 36px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* AI chat */
.chat { flex: 1; display: flex; flex-direction: column; max-width: 860px; margin: 0 auto; width: 100%; padding: 24px 24px 20px; min-height: 0; }
.chat-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.chat-head h1 { font-size: 24px; }
.messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; padding: 10px 2px 20px; }
.msg { max-width: 88%; line-height: 1.6; font-size: 15px; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 18px 18px 4px 18px; white-space: pre-wrap; }
.msg.bot { align-self: flex-start; background: var(--card); border: 1px solid var(--line); padding: 12px 18px; border-radius: 18px 18px 18px 4px; }
.msg.bot p + p, .msg.bot ul, .msg.bot ol, .msg.bot pre, .msg.bot h3 { margin-top: 10px; }
.msg.bot ul, .msg.bot ol { padding-left: 22px; }
.msg.bot code { background: var(--card2); padding: 1px 6px; border-radius: 6px; font-size: 13.5px; }
.msg.bot pre { background: var(--bg); border: 1px solid var(--line); padding: 12px; border-radius: 10px; overflow-x: auto; }
.msg.bot pre code { background: none; padding: 0; }
.msg.bot a { color: var(--accent2); }
.typing::after { content: "▋"; animation: blink 1s infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }
.chat-empty { margin: auto; text-align: center; }
.orb { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px; background: radial-gradient(circle at 30% 30%, var(--accent2), var(--accent)); box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 60%, transparent); animation: float 4s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-6px); } }
.suggest { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; max-width: 520px; }
.suggest button { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; font-size: 14px; text-align: left; }
.suggest button:hover { border-color: var(--accent); }
.composer { display: flex; gap: 10px; align-items: flex-end; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 8px 8px 8px 16px; }
.composer:focus-within { border-color: var(--accent); }
.composer textarea { flex: 1; background: none; border: 0; outline: 0; resize: none; max-height: 180px; padding: 8px 0; line-height: 1.5; }
.send { width: 40px; height: 40px; border-radius: 12px; background: var(--accent); color: #fff; display: grid; place-items: center; }
.send:disabled { opacity: .4; cursor: default; }

/* Settings */
.settings { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.card h3 { font-size: 17px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.field input, .field select { color: var(--text); font-size: 14px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.toggle { display: flex; align-items: center; gap: 12px; font-size: 14px; cursor: pointer; }
.toggle input { display: none; }
.toggle span { width: 40px; height: 22px; border-radius: 999px; background: var(--line); position: relative; transition: .2s; flex: none; }
.toggle span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: .2s; }
.toggle input:checked + span { background: var(--accent); }
.toggle input:checked + span::after { left: 21px; }
.themes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.theme { border: 2px solid var(--line); border-radius: 10px; padding: 10px; font-size: 13px; display: flex; align-items: center; gap: 8px; }
.theme.on { border-color: var(--accent); }
.theme i { width: 18px; height: 18px; border-radius: 50%; }

/* Player */
.player { position: fixed; inset: 0; z-index: 20; background: var(--bg); display: flex; flex-direction: column; }
.player-bar { display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: var(--bg2); border-bottom: 1px solid var(--line); }
.player-bar img { width: 34px; height: 34px; border-radius: 8px; object-fit: cover; }
.p-title { display: flex; flex-direction: column; line-height: 1.2; }
.p-title small { color: var(--muted); font-size: 12px; }
.player iframe { flex: 1; border: 0; width: 100%; background: #000; }

/* Dialog + toasts */
dialog { margin: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); color: var(--text); padding: 0; width: min(420px, 92vw); }
dialog::backdrop { background: rgba(0,0,0,.6); }
.dialog { padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.toasts { position: fixed; bottom: 20px; right: 20px; z-index: 50; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--card2); border: 1px solid var(--line); border-left: 3px solid var(--accent); padding: 12px 16px; border-radius: 10px; font-size: 14px; box-shadow: 0 10px 30px rgba(0,0,0,.4); animation: fade .2s; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 10px; border: 2px solid transparent; background-clip: padding-box; }

/* Phones */
@media (max-width: 700px) {
  :root { --side: 0px; }
  .sidebar { inset: auto 0 0 0; width: 100%; height: 64px; flex-direction: row; justify-content: space-around; padding: 0 4px; border: 0; border-top: 1px solid var(--line); }
  .brand, .sidebar .spacer, #blankBtn { display: none; }
  .nav-btn { width: auto; flex: 1; }
  main { height: calc(100% - 64px); }
  .view { padding: 20px 16px 40px; }
  .search { min-width: 0; flex: 1; }
  .game-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
  .settings { grid-template-columns: 1fr; }
  .suggest { grid-template-columns: 1fr; }
  .tab { width: 140px; }
}