/* Twin Chat, following the Twin Client App design proposal (October 2026).
   Dark by default and follows the phone setting; light mode is the same screens with the palette flipped.
   Electric Navy is the ground, one softened blue accent means "tap me", status colours stay small. */

:root {
  color-scheme: dark;
  --bg: #070a18;
  --bg-top: #070a18;
  --surface: rgba(16, 20, 44, 0.78);
  --surface-2: rgba(255, 255, 255, 0.07);
  --bubble: #1c2447;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f2f6ff;
  --muted: #96a2c0;
  --faint: #566180;
  --accent: #3fb6ea;
  --accent-text: #5cc8f5;
  --glow: radial-gradient(60% 40% at 15% 42%, rgba(12, 157, 216, 0.22), transparent 70%), radial-gradient(60% 50% at 90% 88%, rgba(42, 63, 176, 0.38), transparent 70%), radial-gradient(40% 30% at 70% 58%, rgba(124, 92, 230, 0.14), transparent 70%);
  --num: linear-gradient(135deg, #7fd8ff, #8fa0ff);
  --card-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 10px 30px rgba(0, 2, 12, 0.45);
  --user-1: #4d84ad;
  --user-2: #6297c0;
  --ring-1: #5d8fc0;
  --ring-2: #8e74c8;
  --live: #31e38f;
  --alert: #df0e44;
  --attention: #fe9309;
  --bar: rgba(7, 10, 24, 0.88);
  --seg: rgba(255, 255, 255, 0.06);
  --seg-on: rgba(92, 200, 245, 0.22);
  --bar-lo: #2a3650;
  --live-bg: rgba(49, 227, 143, 0.14);
  --attention-bg: rgba(254, 147, 9, 0.18);
  --sheet: #ffffff;
  --sheet-text: #0b1430;
  --sheet-muted: #5b6275;
  --sheet-line: #d9dde6;
  --navy: #0f1d4a;
  --sky: #0c9dd8;
  --indigo: #2a3fb0;
  --twin: linear-gradient(135deg, #0c9dd8 0%, #2a3fb0 100%);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f7f9fd;
    --bg-top: #e9f3fc;
    --surface: #ffffff;
    --surface-2: #eef3fb;
    --bubble: #e3e9f3;
    --line: rgba(11, 16, 48, 0.07);
    --text: #0b1030;
    --muted: #5b6785;
    --faint: #9aa5bf;
    --accent: #1f6fd0;
    --accent-text: #1f6fd0;
    --glow: none;
    --num: linear-gradient(135deg, #0c9dd8, #2a3fb0);
    --card-shadow: 0 10px 28px rgba(11, 16, 48, 0.07);
    --user-1: #2f78ad;
    --user-2: #3f8dc4;
    --bar: rgba(255, 255, 255, 0.92);
    --seg: #e6ecf6;
    --seg-on: #ffffff;
    --bar-lo: #c9d3e2;
    --live: #17a65c;
    --attention: #d97706;
    --live-bg: rgba(23, 166, 92, 0.12);
    --attention-bg: rgba(217, 119, 6, 0.14);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.42 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
#app { height: 100%; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: 0.5; }
[hidden] { display: none !important; }
a { color: var(--accent-text); }
p { margin: 0 0 8px; }
.icon { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon-filled { fill: currentColor; stroke: currentColor; }
.tab .icon path[d^="M5 12h.01"] { stroke-width: 3.2; }

/* Buttons */
.btn-primary, .btn-secondary {
  display: block; width: 100%; border: 0; border-radius: 12px; padding: 13px 16px;
  font-weight: 600; font-size: 16px; margin-top: 8px;
}
.btn-primary { background: linear-gradient(135deg, var(--sky) 0%, var(--indigo) 100%); color: #fff; box-shadow: 0 8px 20px rgba(42, 63, 176, 0.25); }
.btn-secondary { background: var(--surface-2); color: var(--text); }
.text-btn { background: none; border: 0; padding: 6px 0; color: var(--accent-text); font-size: 15px; }
.text-btn.strong { font-weight: 700; }
.text-btn.block { display: block; margin: 12px auto 0; }
.form-error { color: var(--alert); font-size: 14px; min-height: 0; margin: 6px 0 0; }
.form-error:empty { display: none; }

/* The lockup: glyph and name. Light grounds get the two-tone glyph, dark ones the white glyph. */
.nameplate { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -0.02em; font-size: 20px; }
.nameplate-glyph { height: 1.4em; width: auto; position: relative; top: 0.08em; }
.only-dark { display: none; }
@media (prefers-color-scheme: light) { .only-dark { display: none; } .only-light { display: inline; } }
@media (prefers-color-scheme: dark) { .only-light { display: none; } .only-dark { display: inline; } }

/* Splash: white glyph on navy, a blue glow behind it and faint rings */
.splash { height: 100%; background: var(--navy); display: flex; align-items: center; justify-content: center; padding-bottom: var(--safe-b); }
.splash-icon { width: 72px; height: 72px; border-radius: 17px; }

/* Sign in: a light page in both modes, the lockup top left, the glyph as a faint watermark */
.signin { position: relative; overflow: hidden; min-height: 100%; display: flex; flex-direction: column; background: #f6f9fd; color: #0b1030; }
.signin-mark { position: absolute; right: -120px; top: -40px; width: 340px; height: auto; opacity: 0.06; pointer-events: none; }
.signin-top { position: relative; width: 100%; max-width: 440px; margin: 0 auto; padding: calc(44px + var(--safe-t)) 28px 0; color: var(--navy); }
.signin-top .nameplate { font-size: 22px; }
.signin-sheet { position: relative; flex: 1; display: flex; flex-direction: column; width: 100%; max-width: 440px; margin: 0 auto; padding: 56px 28px calc(24px + var(--safe-b)); }
.signin-sheet h1 { font-size: 32px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 10px; color: #0b1030; }
.signin-sheet .lead { color: #4b5570; font-size: 15px; line-height: 1.5; margin-bottom: 30px; }
.signin-sheet .lead.small { font-size: 14px; margin: 10px 0 0; }
.signin-sheet input {
  width: 100%; height: 54px; padding: 0 18px; border-radius: 14px; border: 1px solid #d6deea;
  background: #fff; color: #0b1030; outline: none;
}
.signin-sheet input:focus { border-color: var(--sky); box-shadow: 0 0 0 3px rgba(12, 157, 216, 0.15); }
.signin-sheet input.code:not(:placeholder-shown) { letter-spacing: 0.3em; }
.signin-sheet input.code { font-size: 22px; text-align: center; font-variant-numeric: tabular-nums; }
.signin-sheet .btn-primary { height: 54px; border-radius: 14px; margin-top: 14px; padding: 0 16px; }
.signin-sheet .text-btn { color: var(--indigo); }
.signin-sheet .form-error { margin-top: 10px; }
.split { display: flex; justify-content: space-between; margin-top: 10px; }
.signin-foot { margin-top: auto; padding-top: 32px; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.signin-rule { display: block; width: 48px; height: 4px; border-radius: 2px; background: var(--twin); }
.consent { text-align: center; font-size: 12px; line-height: 1.6; color: #6b7590; margin: 0; }
.inline-link { background: none; border: 0; padding: 0; color: var(--indigo); font-size: 12px; }

/* Signed-in shell: soft navy gradient ground, bar at the bottom */
.shell { position: relative; height: 100%; display: flex; flex-direction: column; background: var(--bg); isolation: isolate; }
/* The glow is one fixed layer behind everything, composited once, so tab changes and scrolling never repaint it. */
.shell::before { content: ""; position: fixed; inset: 0; z-index: -1; background: var(--glow), linear-gradient(180deg, var(--bg-top) 0%, var(--bg) 45%); background-color: var(--bg); pointer-events: none; transform: translateZ(0); }
.solo { min-height: 100%; background: var(--bg); }
/* A page shown on its own (consent) stretches to the full height, so its centring spacers have room to work. */
.solo:not(.center-screen) { display: flex; flex-direction: column; }
.solo:not(.center-screen) > .page { flex: 1 0 auto; }
.center-screen { display: flex; align-items: center; }
.content { flex: 1; min-height: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; }
/* Floating bar: a pill detached from the bottom edge; the page scrolls under it. */
.tabbar {
  position: absolute; left: 14px; right: 14px; bottom: calc(12px + var(--safe-b)); z-index: 6;
  display: flex; background: var(--bar); border: 1px solid var(--line); border-radius: 26px;
  padding: 6px 6px; box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.content { padding-bottom: calc(88px + var(--safe-b)); }
.content:has(> .chat) { padding-bottom: 0; }
.chat .composer { padding-bottom: calc(90px + var(--safe-b)); border-top: 0; }
.shell > .me-fixed { position: absolute; display: grid; place-items: center; top: calc(18px + var(--safe-t)); right: 20px; z-index: 6; background: var(--seg-on); color: var(--accent-text); border: 1px solid var(--line); }
.shell > .me-fixed[hidden] { display: none; }
.menu-back { position: fixed; inset: 0; z-index: 20; background: rgba(0, 0, 0, 0); transition: background 0.22s ease; }
.menu-back.open { background: rgba(0, 0, 0, 0.45); }
.menu { position: absolute; top: 0; bottom: 0; left: 0; width: min(82vw, 340px); display: flex; flex-direction: column; background: var(--bg); color: var(--text); box-shadow: 12px 0 40px rgba(0, 0, 0, 0.4); transform: translateX(-104%); transition: transform 0.22s ease-out; padding: calc(22px + var(--safe-t)) 0 calc(16px + var(--safe-b)); }
.menu-back.open .menu { transform: none; }
.menu-head { display: flex; align-items: center; gap: 14px; padding: 6px 20px 18px; border-bottom: 1px solid var(--line); }
.menu .me-big { width: 48px; height: 48px; font-size: 19px; display: grid; place-items: center; border: 0; background: var(--twin); color: #fff; }
.menu-who { display: flex; flex-direction: column; min-width: 0; }
.menu-who strong { font-size: 17px; }
.menu-who span { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.menu-list { flex: 1; overflow-y: auto; padding: 10px 8px; }
.menu-item { display: flex; align-items: center; gap: 16px; width: 100%; padding: 13px 14px; border: 0; border-radius: 12px; background: none; color: var(--text); font-size: 16px; font-weight: 500; text-align: left; }
.menu-item:active { background: var(--surface-2); }
.menu-item .icon { color: var(--accent-text); flex: none; }
.menu-item.danger, .menu-item.danger .icon { color: var(--alert); }
.menu-rule { border: 0; border-top: 1px solid var(--line); margin: 8px 14px; }
.menu-foot { text-align: center; color: var(--faint); font-size: 12px; margin: 8px 0 0; }
@media (prefers-reduced-motion: reduce) { .menu, .menu-back { transition: none; } }
.tab { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 6px 0 2px; background: none; border: 0; color: var(--muted); font-size: 12px; font-weight: 500; }
.tab[aria-current="page"] { color: var(--accent-text); font-weight: 600; }

/* Pages */
/* One gutter everywhere: titles, labels and cards share the same left edge (20px, as on Home). */
.page { padding: calc(18px + var(--safe-t)) 20px 28px; max-width: 640px; margin: 0 auto; width: 100%; }
/* A short screen sits in the middle of the view instead of bunching at the top; a long one scrolls as usual. */
.page:not(.home) { display: flex; flex-direction: column; min-height: 100%; box-sizing: border-box; }
.page:not(.home):not(.sub):not(.top)::before, .page:not(.home):not(.sub):not(.top)::after { content: ""; flex: 1 0 0; }
.page:not(.home) > * { flex: none; }
/* Spacing scale, used on every screen: back row 44px; title; title to subtitle 4px; subtitle (or title) to first
   content 24px; label to card 12px; card to card 20px; footnote 16px above. */
.page-title { font-size: 35px; line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.page-sub { color: var(--muted); font-size: 16px; line-height: 1.4; margin: 4px 0 24px; }
.page-title + :not(.page-sub) { margin-top: 24px; }
.back { display: grid; place-items: center; width: 44px; height: 44px; background: none; border: 0; padding: 0; color: var(--text); margin: 0 0 4px -12px; }
/* Sub-screens start a little lower than the tabs so the header clears the status bar. */
.page.sub, .page.top { padding-top: calc(28px + var(--safe-t)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--card-shadow); }
.note { padding: 16px 18px; }
.note p { margin: 0; }
.note p + p { margin-top: 4px; color: var(--muted); font-size: 14px; }
.group { margin-bottom: 20px; }
.group:last-child { margin-bottom: 0; }
.group-label { color: var(--muted); font-size: 15px; font-weight: 500; margin: 0 0 12px; }
.group + .group .group-label, .card + .group .group-label { margin-top: 4px; }
/* A footnote or footer directly after a group keeps its own 16/24/40 distance; the group adds nothing. */
.group:has(+ .foot-note), .group:has(+ .more-foot), .group:has(+ .about-foot), .group:has(+ .text-btn), .card:has(+ .foot-note) { margin-bottom: 0; }
.list + .group-label, .note + .group-label { margin-top: 22px; }
.list { overflow: hidden; }
.row {
  display: flex; align-items: center; gap: 14px; width: 100%; min-height: 74px; padding: 14px 16px;
  background: none; border: 0; border-top: 1px solid var(--line); text-align: left; color: var(--text);
}
.row:first-child { border-top: 0; }
.row-icon { width: 44px; height: 44px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); display: grid; place-items: center; color: var(--accent-text); flex: none; }
.row-text { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.row-title { font-weight: 600; font-size: 15px; }
.row-detail { color: var(--muted); font-size: 15px; overflow-wrap: anywhere; }
.row-chevron, .row-value { color: var(--faint); }
.row.danger .row-title, .row.danger .row-icon { color: var(--alert); }
.prose p { color: var(--text); font-size: 16px; line-height: 1.5; margin: 0 0 14px; }
.prose p:last-child { margin-bottom: 0; }
/* Reading text is flush on both sides; hyphenation avoids wide word gaps on short lines. */
.foot-note { color: var(--muted); font-size: 13px; line-height: 1.4; text-align: center; margin: 16px 0 0; }
.prose p { text-align: justify; hyphens: auto; -webkit-hyphens: auto; text-wrap: pretty; }
.consent-point p { text-align: justify; hyphens: auto; -webkit-hyphens: auto; text-wrap: pretty; }
.sn { display: inline-block; }
.sheet-head strong { font-size: 20px; }
.sheet-head .text-btn { font-size: 16px; }
.arrange { touch-action: none; user-select: none; }
.arrange .list { margin-bottom: 24px; }
.grip { color: var(--muted); padding: 8px; margin-right: -8px; cursor: grab; touch-action: none; }
.arrange-row.dragging { background: var(--surface-2); }
.about-foot { text-align: center; margin-top: 40px; }
.about-foot .nameplate { font-size: 18px; color: var(--text); }
.about-foot p { color: var(--muted); font-size: 12px; margin-top: 4px; }
.more-foot { text-align: center; color: var(--faint); font-size: 12px; margin: 24px 0 0; }

/* Avatar: the Twin glyph in a white circle with the Twin gradient ring, green dot when active */
.avatar { position: relative; flex: none; border-radius: 50%; padding: 2px; background: var(--twin); }
.avatar-inner { border-radius: 50%; background: #fff; display: grid; place-items: center; }
.avatar-glyph { width: 42%; height: auto; }
.avatar-md .avatar-inner { width: 46px; height: 46px; }
.avatar-xs .avatar-inner { width: 26px; height: 26px; }
.avatar-xs { padding: 1.5px; }
.online-dot { position: absolute; right: 1px; bottom: 1px; width: 11px; height: 11px; border-radius: 50%; background: var(--live); border: 2px solid var(--bg); }

/* Shared bits */
.eyebrow { display: block; color: var(--muted); font-size: 15px; font-weight: 500; margin-bottom: 2px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.icon-btn { background: none; border: 0; padding: 6px; color: var(--muted); display: grid; place-items: center; border-radius: 50%; }
.toast { position: fixed; left: 50%; bottom: calc(100px + var(--safe-b)); transform: translateX(-50%); max-width: calc(100% - 40px); background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 12px; font-size: 14px; font-weight: 500; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35); z-index: 30; animation: rise 0.2s ease-out; }
@keyframes rise { from { opacity: 0; transform: translate(-50%, 8px); } }
.sheet-back { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); display: flex; align-items: flex-end; z-index: 25; }
.sheet { width: 100%; max-width: 560px; margin: 0 auto; background: var(--bg); border-radius: 22px 22px 0 0; padding: 10px 20px calc(20px + var(--safe-b)); animation: up 0.22s ease-out; }
@keyframes up { from { transform: translateY(40px); opacity: 0; } }
.sheet-grab { width: 36px; height: 4px; border-radius: 2px; background: var(--faint); margin: 0 auto 14px; }
.sheet-agent { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.sheet .btn-secondary { margin-top: 14px; }
.sheet .btn-primary + .btn-secondary { margin-top: 10px; }
.btn-primary.danger { background: var(--alert); }
.sheet-title { font-size: 20px; font-weight: 700; margin: 2px 0 6px; }
.sheet-text { color: var(--muted); margin: 0 0 16px; }
.badge { position: absolute; top: -5px; right: -9px; min-width: 17px; height: 17px; padding: 0 5px; border-radius: 9px; background: var(--alert); color: #fff; font-size: 11px; font-weight: 700; display: grid; place-items: center; border: 2px solid var(--bar); box-sizing: content-box; }
.tab-icon { position: relative; display: inline-flex; }

/* Home: the Twin gradient band at the top, cards below */
.page.home { padding: 0 0 28px; max-width: none; }
.home-band { position: relative; overflow: hidden; background: linear-gradient(180deg, #17b3ec 0%, #1f7fd0 45%, #2a3fb0 100%); color: #fff; border-radius: 0 0 32px 32px; padding: calc(16px + var(--safe-t)) 20px 28px; }
.home-band::before { content: ""; position: absolute; left: -40px; top: 64px; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0) 70%); pointer-events: none; }
.home-band > * { position: relative; }
.home-band > * { position: relative; }
.band-mark { position: absolute; right: -40px; bottom: -60px; width: 190px; height: auto; opacity: 0.12; pointer-events: none; }
.home-head { display: flex; justify-content: space-between; align-items: center; min-height: 52px; margin-bottom: 30px; }
.home-head .nameplate { font-size: 20px; }
.home-head-right { display: flex; align-items: center; gap: 10px; }
.agent-pill { display: inline-flex; align-items: center; gap: 8px; max-width: 170px; height: 36px; padding: 0 14px; border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.16); color: #fff; font-size: 13px; font-weight: 600; }
.pill-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pill-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, 0.45); flex: none; }
.pill-dot.on { background: #7df3b0; box-shadow: 0 0 10px rgba(125, 243, 176, 0.8); }
.head-name { font-weight: 700; font-size: 19px; }
.head-status { color: var(--muted); font-size: 15px; }
.me { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.16); color: #fff; font-weight: 600; font-size: 14px; flex: none; }
.band-sub { font-size: 15px; font-weight: 500; opacity: 0.85; margin: 0; }
.greeting { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; margin: 6px 0 10px; }
.band-meta { font-size: 13px; color: rgba(255, 255, 255, 0.72); margin: 0; }
.home-body { padding: 24px 20px 0; max-width: 640px; margin: 0 auto; }
.home-body .eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; }
.upnext { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 18px; margin: 0 0 22px; background: var(--surface); border-radius: 20px; }
.upnext-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.upnext-text strong { font-size: 19px; }
.upnext-text .muted { font-size: 15px; color: var(--muted); }
.pill-btn { flex: none; background: var(--twin); color: #fff; border: 0; border-radius: 999px; padding: 9px 18px; font-weight: 600; font-size: 15px; text-decoration: none; }
.feed { display: flex; flex-direction: column; }
.feed-item { padding: 16px 0 14px; border-top: 1px solid var(--line); }
.feed-item:first-child { border-top: 0; padding-top: 4px; }
.feed-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.feed-name { font-weight: 700; font-size: 17px; }
.feed-time { color: var(--muted); font-size: 15px; }
.feed-text { font-size: 19px; line-height: 1.4; margin: 0; }
.feed-empty { margin-top: 8px; }

/* Usage */
.segmented { display: flex; background: var(--seg); border-radius: 14px; padding: 4px; gap: 4px; margin: 0 0 20px; }
.seg { flex: 1; border: 1px solid transparent; border-radius: 11px; padding: 11px 0; background: none; color: var(--muted); font-weight: 600; font-size: 16px; }
.seg.on { background: var(--seg-on); color: var(--text); border-color: rgba(143, 184, 212, 0.45); }
.spent { padding: 20px 22px 18px; }
.big-number { font-size: 52px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.05; margin: 2px 0 6px; background: var(--num); -webkit-background-clip: text; background-clip: text; color: transparent; }
.delta { font-size: 14px; font-weight: 700; }
.delta.good { color: var(--live); }
.delta.bad { color: var(--attention); }
.delta .muted { font-weight: 500; }
.stat { padding: 18px 20px; display: flex; flex-direction: column; }
.stat strong { font-size: 32px; font-weight: 800; letter-spacing: -0.02em; background: var(--num); -webkit-background-clip: text; background-clip: text; color: transparent; width: fit-content; }
.model { display: flex; align-items: center; gap: 14px; padding: 16px 20px; margin-bottom: 0; }
.model .row-title { font-size: 18px; }
.model-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--twin); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 17px; flex: none; }
.text-btn.plain { color: var(--text); }
.center { text-align: center; }
.small { font-size: 13px; }
.muted { color: var(--muted); }

/* Skills and Apps */
.tone-icon { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: #fff; flex: none; }
.tone-icon.orange { background: #fe9309; }
.tone-icon.blue { background: #4d78a0; }
.tone-icon.plum { background: #6f0875; }
.tone-icon.sky { background: #3b8fe8; }
.tone-icon.green { background: #17a65c; }
.switch { position: relative; width: 54px; height: 32px; border-radius: 16px; border: 0; background: var(--faint); padding: 0; flex: none; transition: background 0.15s; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%; background: #fff; transition: transform 0.15s; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3); }
.switch.on { background: var(--accent); }
.switch.on::after { transform: translateX(22px); }
.letter { width: 46px; height: 46px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); color: var(--accent-text); display: grid; place-items: center; font-weight: 600; font-size: 16px; flex: none; }
.status { flex: none; display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; border-radius: 8px; font-size: 14px; font-weight: 700; border: 1px solid transparent; }
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status.live { color: var(--live); background: var(--live-bg); border-color: rgba(49, 227, 143, 0.35); }
.status.fix { color: var(--attention); background: var(--attention-bg); border-color: rgba(254, 147, 9, 0.4); }
.row .row-title { font-size: 18px; line-height: 1.22; }
.row-detail { line-height: 1.3; margin-top: 1px; }

/* Chat */
.chat { height: 100%; display: flex; flex-direction: column; max-width: 760px; margin: 0 auto; }
/* Right padding leaves room for the fixed avatar (20px in, 40px wide) so the info button sits left of it. */
.chat-head { flex: none; display: flex; align-items: center; gap: 12px; padding: calc(12px + var(--safe-t)) 68px 10px 18px; }
.head-text { flex: 1; min-width: 0; }
.banner { flex: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 0 16px 8px; padding: 10px 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); font-size: 14px; }
.thread { flex: 1; min-height: 0; overflow-y: auto; padding: 4px 16px 12px; display: flex; flex-direction: column; gap: 6px; overscroll-behavior: contain; }
.thread > :first-child { margin-top: auto; }
.day { text-align: center; color: var(--muted); font-size: 13px; font-weight: 600; margin: 10px 0 6px; }
.msg { display: flex; align-items: flex-end; gap: 8px; max-width: 86%; }
.msg.user { align-self: flex-end; }
.msg.assistant .avatar { margin-bottom: 20px; }
.chat-head .avatar-md .avatar-inner { width: 42px; height: 42px; }
.msg-col { display: flex; flex-direction: column; min-width: 0; }
.msg.user .msg-col { align-items: flex-end; }
.bubble { padding: 10px 14px; border-radius: 18px; overflow-wrap: anywhere; }
.msg.assistant .bubble { background: var(--bubble); border: 1px solid var(--line); }
.msg.user .bubble { background: var(--twin); color: #fff; white-space: pre-wrap; box-shadow: 0 8px 20px rgba(42, 63, 176, 0.22); }
.time { color: var(--muted); font-size: 12px; margin: 4px 6px 4px; }
.msg.failed .bubble { opacity: 0.55; }
.msg-note { color: var(--muted); font-size: 13px; margin: 0 4px 6px; text-align: right; max-width: 300px; }
.bubble p:last-child, .bubble ul:last-child, .bubble ol:last-child, .bubble pre:last-child { margin-bottom: 0; }
.bubble ul, .bubble ol { margin: 0 0 8px; padding-left: 20px; }
.bubble code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.88em; background: rgba(127, 140, 170, 0.18); padding: 1px 5px; border-radius: 6px; }
.bubble pre { margin: 0 0 8px; padding: 10px 12px; border-radius: 10px; background: rgba(0, 0, 0, 0.22); overflow-x: auto; }
.bubble pre code { background: none; padding: 0; }
.md-heading { font-weight: 700; }
.typing { display: flex; gap: 4px; padding: 14px 16px; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.25; } 40% { opacity: 1; } }
.composer { flex: none; display: flex; align-items: flex-end; gap: 6px; padding: 10px 10px 12px; border-top: 1px solid var(--line); }
.icon-btn.side { width: 40px; height: 44px; flex: none; }
.composer-field { flex: 1; min-width: 0; display: flex; background: var(--surface-2); border: 1px solid var(--line); border-radius: 22px; }
.composer textarea { flex: 1; min-width: 0; width: 100%; resize: none; border: 0; background: none; outline: none; padding: 11px 16px; max-height: 140px; line-height: 1.35; }
.send { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--twin); display: grid; place-items: center; }
.send-arrow { width: 0; height: 0; border-left: 7px solid transparent; border-right: 7px solid transparent; border-bottom: 11px solid #fff; margin-top: -2px; }

/* Loading */
.loading { height: 100%; display: grid; place-items: center; }
.spinner { width: 26px; height: 26px; border-radius: 50%; border: 3px solid var(--surface-2); border-top-color: var(--accent); animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Light mode details from the mockups: solid agent avatars, blue-tinted highlight cards */
@media (prefers-color-scheme: light) {
  .bar { background: #c6d5e8; }
}

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

/* Phase 3b: skill list with search */
.search { width: 100%; padding: 11px 14px; margin: 0 0 20px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--text); font-size: 16px; outline: none; }
.search:focus { border-color: var(--accent); }
.skill-icon { width: 46px; height: 46px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); display: grid; place-items: center; font-size: 22px; flex: none; color: var(--accent-text); font-weight: 700; }
.row.dim .row-title { color: var(--muted); }
.row.dim .skill-icon { opacity: 0.55; }
.big-empty { font-size: 24px; font-weight: 700; color: var(--muted); margin: 8px 0 6px; }

/* Skills, grouped: each group is a card that opens with a tap. Each group has its own warm
   gradient taken from the Twin palette, softened for a dark screen; its skills share it. */
.skill-groups { margin-top: 0; }
.skill-group { border-top: 1px solid var(--line); }
.skill-group:first-child { border-top: 0; }
.skill-group-head { width: 100%; display: flex; align-items: center; gap: 12px; padding: 14px 14px 14px 16px; background: none; border: 0; color: var(--text); text-align: left; font: inherit; }
.skill-group-head .row-title { font-size: 18px; }
.skill-group-head .row-detail { font-size: 14px; }
.skill-count { color: var(--text); background: var(--surface-2); border-radius: 999px; padding: 4px 10px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.skill-chev { color: var(--faint); display: grid; transition: transform 0.18s; }
.skill-group.open .skill-chev, .skill-group.searching .skill-chev { transform: rotate(90deg); }
.skill-badge { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; color: #fff; flex: none; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28); }
.skill-rows { border-top: 1px solid var(--line); }
.row.skill .row-title { font-size: 16px; }
.row.skill .row-detail { font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.skill-icon[class*="tone-"] { border: 0; color: #fff; }
.tone-everyday { background: linear-gradient(135deg, #fe9309, #df4a2e); }
.tone-work { background: linear-gradient(135deg, #2fa6dc, #3e5bc4); }
.tone-create { background: linear-gradient(135deg, #e0366a, #8a1b8f); }
.tone-home { background: linear-gradient(135deg, #22b573, #1a8fb8); }
.tone-build { background: linear-gradient(135deg, #5b7fd6, #6b3fb0); }
.tone-system { background: linear-gradient(135deg, #8e74c8, #4d5aa8); }
.tone-other { background: linear-gradient(135deg, #5d8fc0, #8e74c8); }
.tone-na { background: linear-gradient(135deg, #3a4360, #2a3150); color: var(--muted); }
.switch.on { background: linear-gradient(135deg, #4d9bd0, #6a7fd0); }
.tone-twin { background: linear-gradient(135deg, #0c9dd8, #2a3fb0); }

/* Account and AI consent */
.field { width: 100%; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface-2); color: var(--text); font-size: 16px; outline: none; }
.field:focus { border-color: var(--accent); }
.field-card { padding: 14px; }
.sheet .field { margin-bottom: 4px; }
.consent-page { padding-top: calc(12px + var(--safe-t)); padding-bottom: calc(12px + var(--safe-b)); }
.page.consent-page > .consent-card { padding: 2px 18px; margin: 16px 0 8px; }
.consent-point { padding: 12px 0; border-top: 1px solid var(--line); }
.consent-point:first-child { border-top: 0; }
.consent-point strong { display: block; font-size: 15px; margin-bottom: 2px; }
.consent-point p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.4; }
.consent-foot { margin-top: auto; display: flex; flex-direction: column; gap: 6px; }
.consent-foot .btn-primary { width: 100%; margin: 8px 0 4px; }

/* Model picker */
.sheet-tall { max-height: 86dvh; display: flex; flex-direction: column; }
.sheet-scroll { overflow-y: auto; min-height: 0; margin: 0 -4px; padding: 0 4px; }
.sheet-scroll .group-label { margin: 10px 4px 10px; }
.sheet-scroll .group-label:first-child { margin-top: 0; }
.sheet-scroll .card { background: var(--surface); }
.model-row { min-height: 64px; }
.model-row.current .row-title { color: var(--accent-text); }
.model-avatar.small { width: 38px; height: 38px; font-size: 15px; background: var(--twin); }
.check { color: var(--accent-text); display: grid; }

/* Home overview */
.home-body .group-label { margin: 0 0 12px; }
.home-body .upnext + .group-label { margin-top: 2px; }
.home-body .two { margin: 0 0 24px; }
.home-body .row-icon { color: var(--accent-text); }
.spent { padding: 22px; }
.spent .delta, .spent .muted.small { display: inline-block; margin-top: 2px; }

/* A screen coming in on a tab change fades and rises a touch; nothing on the way out, so taps stay instant. */
@keyframes ghost-out { from { opacity: 1; } to { opacity: 0; } }
.ghost { position: absolute; left: 0; right: 0; top: 0; bottom: 0; overflow: hidden; pointer-events: none; z-index: 5; background: var(--bg); animation: ghost-out 0.18s ease-out forwards; will-change: opacity; }
.ghost::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--glow), linear-gradient(180deg, var(--bg-top) 0%, var(--bg) 45%); }
@keyframes tab-in { from { transform: translateY(6px); } to { transform: none; } }
.content > .page, .content > .chat { animation: tab-in 0.18s ease-out; }
@media (prefers-reduced-motion: reduce) { .content > .page, .content > .chat { animation: none; } }

/* Markets */
.mk { display: flex; align-items: center; gap: 14px; padding: 13px 18px; }
.mk + .mk { border-top: 1px solid var(--line); }
.mk.mini { padding: 11px 16px; }
.coin { width: 38px; height: 38px; border-radius: 50%; flex: none; object-fit: cover; background: var(--surface-2); }
.coin-text { display: grid; place-items: center; font-size: 11px; font-weight: 800; color: #fff; background: var(--twin); }
.mk.mini .coin { width: 32px; height: 32px; }
.mk-name { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.mk-name b { font-size: 16px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mk-name span { color: var(--muted); font-size: 13px; }
.spark { width: 68px; height: 28px; flex: none; }
.spark polyline { fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; stroke: var(--muted); }
.spark.up polyline { stroke: var(--live); }
.spark.dn polyline { stroke: var(--alert); }
.mk-px { text-align: right; min-width: 84px; display: flex; flex-direction: column; align-items: flex-end; }
.mk-px b { font-size: 16px; font-weight: 600; font-variant-numeric: tabular-nums; }
.chg { display: inline-block; margin-top: 3px; padding: 2px 7px; border-radius: 7px; font-size: 12px; font-weight: 700; color: var(--muted); background: var(--surface-2); }
.chg.up { color: var(--live); background: var(--live-bg); }
.chg.dn { color: var(--alert); background: rgba(255, 92, 122, 0.14); }
.mk-empty { color: var(--muted); padding: 16px 18px; margin: 0; }
.mk-label { display: flex; align-items: center; justify-content: space-between; }
.mk-label .text-btn { display: inline-flex; align-items: center; gap: 2px; font-size: 14px; font-weight: 600; color: var(--accent-text); padding: 0; }
.home-body .mk-group { margin-top: 24px; }
.home-body .mk-group[hidden] { display: none; }

/* Vault */
.vault-storage { padding: 16px 18px; margin-bottom: 20px; }
.vault-storage-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px; }
.vault-storage-row b { font-size: 17px; }
.vault-bar { height: 6px; border-radius: 3px; background: var(--surface-2); border: 1px solid var(--line); overflow: hidden; margin-bottom: 10px; }
.vault-bar span { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--sky), var(--indigo)); }
.vault-storage p { margin: 0; }
.vault-search { margin-bottom: 20px; }
.vault-results .group:last-child { margin-bottom: 0; }
.vault-results + .text-btn { margin-top: 24px; }
.vault-empty { margin: 8px 0 0; }
.ext-tile { font-size: 11px; font-weight: 700; letter-spacing: 0.02em; }
.ext-tile.doc { color: var(--accent-text); }
.ext-tile.sheet { color: #35b37e; }
.ext-tile.image { color: #d66aa3; }
.ext-tile.media { color: #9b7bea; }
.ext-tile.other { color: var(--muted); }
.vault-file .row-title { word-break: break-word; }
.field.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 15px; }
.field-card .form-error:empty { display: none; }

/* Agent line in the menu head */
.menu-agent { display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 20px; border: 0; border-bottom: 1px solid var(--line); background: none; color: var(--text); text-align: left; }
.menu-agent-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--faint); flex: none; }
.menu-agent-dot.on { background: #35b37e; }
.menu-agent-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.menu-agent-text strong { font-size: 15px; }
.menu-agent .eyebrow { font-size: 12px; margin-bottom: 0; }
.menu-agent .row-chevron { color: var(--muted); }
.sheet .field { margin-bottom: 10px; }