:root { --bg:#f7f9fc; --side:#edf1f7; --card:#fff; --border:#d9e0eb; --text:#1b1f3b; --muted:#626a88; --accent:#0f766e; --accent-text:#fff; --sun:#f2b705; --danger:#c0392b; --user:#e7eef8; --code:#eef2f7; --font:"Segoe UI",system-ui,-apple-system,sans-serif; --mono:Consolas,"Cascadia Mono",ui-monospace,monospace; color-scheme: light; }
:root[data-theme="dark"] { --bg:#12152b; --side:#171b36; --card:#1d2244; --border:#2f3560; --text:#eef0fa; --muted:#a5abcb; --accent:#2dd4bf; --accent-text:#06201d; --user:#262c58; --code:#1a1e3d; color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font: 15px/1.55 var(--font); -webkit-font-smoothing: antialiased; }
.hidden { display: none !important; }
.muted { color: var(--muted); } .small { font-size: 12.5px; }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
a { color: var(--accent); }
button { font: inherit; color: inherit; }
.btn { border: 1px solid var(--border); background: var(--card); color: var(--text); border-radius: 10px; padding: 9px 14px; cursor: pointer; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn:hover { filter: brightness(.97); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: default; }
.link { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; }
.icon-btn { background: none; border: 0; cursor: pointer; padding: 6px 8px; border-radius: 8px; color: var(--text); font-size: 18px; line-height: 1; }
.icon-btn:hover { background: color-mix(in srgb, var(--text) 8%, transparent); }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
input, textarea, select { font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; }
input:focus, textarea:focus, select:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 0; }
.logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: none; } :root[data-theme="dark"] .logo-light { display: inline; }
.boot { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg); z-index: 50; }
.boot img { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; transform: scale(.94); } }
.login { min-height: 100%; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 30px 28px; }
.login-logo { display: block; margin-bottom: 14px; }
:root[data-theme="dark"] .login-logo.logo-light { display: block; }
.login-card h1 { font-size: 22px; margin: 0 0 6px; }
.login-card p { margin: 0 0 18px; }
.btn.google { width: 100%; }
.or { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; margin: 16px 0; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.login-links { display: flex; justify-content: space-between; margin: 12px 0 6px; font-size: 13px; }
.login-msg { min-height: 20px; font-size: 13.5px; margin: 6px 0 12px !important; }
.login-msg.err { color: var(--danger); } .login-msg.ok { color: var(--accent); }
.app { display: flex; height: 100%; height: 100dvh; }
.side { width: 270px; flex-shrink: 0; background: var(--side); border-right: 1px solid var(--border); display: flex; flex-direction: column; padding: 14px 12px; gap: 10px; }
.side-top { display: flex; align-items: center; justify-content: space-between; padding: 2px 4px 6px; }
.brand img { display: block; }
:root[data-theme="dark"] .brand img.logo-light { display: block; }
.search { width: 100%; padding: 7px 10px; font-size: 14px; }
.side-label { font-size: 12px; padding: 4px 6px 0; }
.chat-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 1px; min-height: 0; }
.chat-item { display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 8px; cursor: pointer; background: none; border: 0; text-align: left; width: 100%; }
.chat-item:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.chat-item.active { background: color-mix(in srgb, var(--accent) 16%, transparent); box-shadow: inset 3px 0 0 var(--accent); font-weight: 600; }
.chat-item .t { flex: 1; min-width: 0; }
.chat-item .tag { font-size: 11px; color: var(--muted); border: 1px solid var(--border); border-radius: 99px; padding: 0 7px; font-weight: 400; }
.side-bottom { position: relative; border-top: 1px solid var(--border); padding-top: 10px; }
.user-btn { display: flex; align-items: center; gap: 10px; width: 100%; background: none; border: 0; cursor: pointer; padding: 6px; border-radius: 10px; text-align: left; }
.user-btn:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--accent-text); display: grid; place-items: center; font-weight: 700; flex-shrink: 0; }
.user-meta { display: flex; flex-direction: column; min-width: 0; }
.menu { position: absolute; bottom: 58px; left: 0; right: 0; background: var(--card); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.18); padding: 8px; display: flex; flex-direction: column; z-index: 20; }
.menu a, .menu button { text-align: left; background: none; border: 0; padding: 8px 10px; border-radius: 8px; cursor: pointer; color: var(--text); text-decoration: none; font-size: 14px; }
.menu a:hover, .menu button:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.menu-credits { padding: 8px 10px 10px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.menu-credits b { font-size: 20px; }
.bar { height: 6px; background: color-mix(in srgb, var(--text) 10%, transparent); border-radius: 99px; overflow: hidden; margin: 6px 0 4px; }
.bar span { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 99px; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.top { display: flex; align-items: center; gap: 10px; padding: 10px 18px; border-bottom: 1px solid var(--border); }
.top-title { flex: 1; font-weight: 600; min-width: 0; }
#model { max-width: 260px; padding: 6px 10px; font-size: 14px; }
.banner { margin: 10px 18px 0; padding: 10px 14px; border-radius: 10px; background: color-mix(in srgb, var(--sun) 18%, var(--card)); border: 1px solid color-mix(in srgb, var(--sun) 45%, var(--border)); font-size: 14px; }
.messages { flex: 1; overflow-y: auto; padding: 24px max(18px, calc(50% - 390px)); display: flex; flex-direction: column; gap: 14px; }
.empty { margin: auto; text-align: center; color: var(--muted); max-width: 520px; }
.empty h2 { color: var(--text); font-size: 24px; margin: 0 0 6px; font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 16px; }
.chips button { border: 1px solid var(--border); background: var(--card); border-radius: 99px; padding: 7px 14px; cursor: pointer; font-size: 14px; }
.msg { max-width: 100%; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--user); border-radius: 16px; padding: 10px 14px; max-width: 85%; }
.msg.user .txt { white-space: pre-wrap; }
.msg.assistant { line-height: 1.6; }
.msg.assistant > :first-child { margin-top: 0; } .msg.assistant > :last-child { margin-bottom: 0; }
.msg.assistant pre { background: var(--code); border: 1px solid var(--border); border-radius: 10px; padding: 12px; overflow-x: auto; font-size: 13.5px; }
.msg.assistant code { font-family: var(--mono); font-size: .92em; }
.msg.assistant :not(pre) > code { background: var(--code); padding: 1px 5px; border-radius: 5px; }
.msg.assistant table { border-collapse: collapse; display: block; overflow-x: auto; }
.msg.assistant th, .msg.assistant td { border: 1px solid var(--border); padding: 6px 10px; }
.msg.assistant img { max-width: 100%; }
.msg.note { font-size: 13px; color: var(--muted); }
.msg.note.err { color: var(--danger); }
.typing { display: inline-flex; color: var(--text); padding: 4px 0; vertical-align: middle; }
.status { margin-left: 8px; vertical-align: middle; }
.orbit-spin { display: inline-flex; width: 30px; height: 30px; vertical-align: middle; flex: none; }
.orbit-spin.xs { width: 15px; height: 15px; }
.orbit-spin svg { width: 100%; height: 100%; overflow: visible; }
.orbit-spin .os-moon, .orbit-spin .os-trail, .orbit-spin .os-ring { transform-origin: 32px 32px; transform-box: view-box; }
.orbit-spin .os-moon { animation: os-orbit 1.6s cubic-bezier(.55,.1,.35,.95) infinite; }
.orbit-spin .os-trail { opacity: .35; transform: rotate(250deg); animation: os-trail 1.6s cubic-bezier(.55,.1,.35,.95) infinite; }
.orbit-spin .os-ring { animation: os-breathe 1.6s ease-in-out infinite; }
@keyframes os-orbit { to { transform: rotate(360deg); } }
@keyframes os-trail { from { transform: rotate(250deg); } to { transform: rotate(610deg); } }
@keyframes os-breathe { 50% { transform: scale(.94); } }
@media (prefers-reduced-motion: reduce) { .orbit-spin .os-moon, .orbit-spin .os-trail, .orbit-spin .os-ring { animation: none; } }
.att-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.atts:empty { display: none; }
.att { position: relative; width: 76px; display: flex; flex-direction: column; gap: 3px; }
.att img, .att .ext { width: 76px; height: 76px; border-radius: 10px; border: 1px solid var(--border); object-fit: cover; background: var(--card); display: grid; place-items: center; }
.att img { cursor: zoom-in; }
.att .ext { font-weight: 700; font-size: 13px; color: var(--accent); }
.att .n { font-size: 11px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.att .x { position: absolute; top: -6px; right: -6px; width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--border); background: var(--card); cursor: pointer; padding: 0; font-size: 12px; line-height: 1; }
.composer { padding: 8px max(18px, calc(50% - 390px)) 12px; }
.atts { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.box { display: flex; align-items: flex-end; gap: 6px; background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 6px; }
.box:focus-within { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
#input { flex: 1; border: 0; resize: none; max-height: 220px; padding: 8px 6px; background: transparent; outline: none; }
.send, .stop { width: 38px; height: 38px; padding: 0; border-radius: 12px; font-size: 18px; }
.hint { text-align: center; margin-top: 6px; }
.viewer { position: fixed; inset: 0; background: rgba(0,0,0,.82); display: grid; place-items: center; z-index: 40; padding: 20px; }
.viewer img { max-width: 100%; max-height: 100%; border-radius: 8px; }
.viewer .icon-btn { position: absolute; top: 14px; right: 14px; color: #fff; font-size: 22px; }
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-size: 14px; z-index: 60; max-width: 90vw; }
.only-mobile { display: none; }
@media (max-width: 760px) {
  .only-mobile { display: inline-flex; }
  .scrim.only-mobile { display: block; }
  .side { position: fixed; inset: 0 auto 0 0; z-index: 30; transform: translateX(-100%); transition: transform .2s; width: 82vw; max-width: 300px; }
  .side.open { transform: none; }
  .scrim { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 25; }
  #model { max-width: 46vw; }
  .msg.user { max-width: 92%; }
}
/* ---------- part 2: views, projects, library, settings ---------- */
:root[data-theme="orbit"] { --bg:#151a3d; --side:#11152f; --card:#1d2350; --border:#323a78; --text:#f2f3ff; --muted:#aab0dd; --accent:#f2b705; --accent-text:#1b1f3b; --user:#2a3170; --code:#121633; color-scheme: dark; }
:root[data-theme="orbit"] body { background: radial-gradient(1200px 600px at 85% -10%, rgba(45,212,191,.12), transparent 60%), radial-gradient(900px 500px at -10% 110%, rgba(139,92,246,.14), transparent 60%), var(--bg); }
:root[data-theme="orbit"] .logo-dark { display: none; } :root[data-theme="orbit"] .logo-light { display: inline; }
:root[data-theme="orbit"] .brand img.logo-light, :root[data-theme="orbit"] .login-logo.logo-light { display: block; }
.view { flex: 1; min-height: 0; }
.chat-view { display: flex; flex-direction: column; }
.side-nav { display: flex; flex-direction: column; gap: 1px; }
.nav-btn { display: flex; align-items: center; gap: 10px; background: none; border: 0; padding: 8px 10px; border-radius: 8px; cursor: pointer; text-align: left; color: var(--text); }
.nav-btn:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.nav-btn.active { background: color-mix(in srgb, var(--accent) 16%, transparent); font-weight: 600; }
.nav-btn svg { color: var(--muted); flex: none; }
.page { overflow-y: auto; padding: 22px max(18px, calc(50% - 470px)) 40px; }
.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head h1 { font-size: 24px; margin: 0; flex: 1; min-width: 0; }
.crumb { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; font-size: 14px; margin-bottom: 6px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.pcard { text-align: left; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px; cursor: pointer; display: flex; flex-direction: column; gap: 6px; min-height: 110px; }
.pcard:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.pcard b { font-size: 16px; }
.pcard .d { color: var(--muted); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pcard .meta { margin-top: auto; color: var(--muted); font-size: 12.5px; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; margin-bottom: 14px; }
.panel h3 { margin: 0 0 10px; font-size: 15px; }
.panel .field input, .panel .field textarea, .panel .field select { width: 100%; }
.panel textarea { min-height: 120px; resize: vertical; }
.row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.btn.small { padding: 5px 11px; font-size: 13px; border-radius: 8px; }
.btn.danger { color: var(--danger); }
.st { font-size: 13px; color: var(--muted); } .st.ok { color: var(--accent); } .st.err { color: var(--danger); }
.list { display: flex; flex-direction: column; }
.lrow { display: flex; align-items: center; gap: 10px; padding: 9px 4px; border-bottom: 1px solid var(--border); }
.lrow:last-child { border-bottom: 0; }
.lrow.click { cursor: pointer; } .lrow.click:hover { background: color-mix(in srgb, var(--text) 4%, transparent); }
.lrow .grow { flex: 1; min-width: 0; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs button { border: 1px solid var(--border); background: var(--card); border-radius: 99px; padding: 6px 14px; cursor: pointer; font-size: 13.5px; }
.tabs button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.lib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.lib-item { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.lib-media { position: relative; aspect-ratio: 1; background: var(--code); display: grid; place-items: center; cursor: zoom-in; }
.lib-media img, .lib-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.lib-play { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; font-size: 30px; text-shadow: 0 2px 8px rgba(0,0,0,.5); pointer-events: none; }
.lib-cap { padding: 8px 10px; font-size: 12.5px; display: flex; flex-direction: column; gap: 2px; }
.lib-cap a { font-size: 12px; }
.settings { position: fixed; inset: 0; background: rgba(8,10,24,.55); z-index: 35; display: grid; place-items: center; padding: 18px; }
.settings-box { position: relative; width: min(980px, 100%); height: min(720px, 100%); background: var(--bg); border: 1px solid var(--border); border-radius: 18px; display: flex; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.settings-nav { width: 210px; flex: none; background: var(--side); border-right: 1px solid var(--border); padding: 18px 10px; display: flex; flex-direction: column; gap: 2px; }
.settings-nav h2 { font-size: 18px; margin: 0 8px 12px; }
.settings-nav button { text-align: left; background: none; border: 0; padding: 8px 10px; border-radius: 8px; cursor: pointer; width: 100%; }
.settings-nav button:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.settings-nav button.on { background: color-mix(in srgb, var(--accent) 16%, transparent); font-weight: 600; }
.settings-body { flex: 1; overflow-y: auto; padding: 22px 26px 30px; min-width: 0; }
.settings-body h2 { margin: 0 0 14px; font-size: 20px; }
.settings-close { position: absolute; top: 10px; right: 12px; }
.big { font-size: 34px; font-weight: 700; line-height: 1.1; }
.big.low { color: var(--danger); }
.bar.lg { height: 10px; }
.bar span.warn { background: var(--sun); } .bar span.full { background: var(--danger); }
.bm { display: grid; grid-template-columns: minmax(0, 1.2fr) 2fr auto; gap: 10px; align-items: center; padding: 4px 0; font-size: 13.5px; }
.bm .bar { margin: 0; }
.plans { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
.plan { border: 1px solid var(--border); border-radius: 12px; padding: 12px; display: flex; flex-direction: column; gap: 4px; background: var(--bg); }
.plan.current { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.plan .price { font-size: 18px; font-weight: 700; }
.plan ul { margin: 4px 0 8px; padding-left: 18px; font-size: 12.5px; color: var(--muted); }
.plan .btn { margin-top: auto; }
.chip { font-size: 11.5px; border: 1px solid var(--border); border-radius: 99px; padding: 1px 8px; color: var(--muted); white-space: nowrap; }
.chip.ok { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.theme-pick { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.theme-pick button { border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: var(--card); cursor: pointer; text-align: left; display: flex; flex-direction: column; gap: 8px; }
.theme-pick button.on { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); font-weight: 600; }
.swatch { height: 46px; border-radius: 8px; border: 1px solid var(--border); }
.mem-text { flex: 1; min-width: 0; white-space: pre-wrap; }
.mem-row textarea { flex: 1; min-height: 60px; }
.proj-tag { font-size: 12px; color: var(--accent); font-weight: 600; }
@media (max-width: 760px) {
  .settings { padding: 0; }
  .settings-box { border-radius: 0; height: 100%; flex-direction: column; }
  .settings-nav { width: auto; border-right: 0; border-bottom: 1px solid var(--border); flex-direction: row; overflow-x: auto; padding: 10px; padding-right: 50px; }
  .settings-nav h2 { display: none; }
  .settings-nav button { width: auto; white-space: nowrap; }
  .settings-body { padding: 16px; }
  .bm { grid-template-columns: minmax(0, 1fr) 1fr auto; }
}#settingsTabs { display: flex; flex-direction: column; gap: 2px; }
@media (max-width: 760px) { #settingsTabs { flex-direction: row; } }