/* =============================================================================
   "Use it in your code" guide scene (js/codeguide.js, markup in
   _codeguide_fragment.html). Loads after site.css. Every loop is transform or
   opacity; loops pause while .cg lacks .cg-run (off screen, hidden tab, open
   modal) and stop under reduced motion. Panes of every language share one grid
   cell, so switching language never changes the height.
   ============================================================================= */

.cg {
    --cg-code: #fbfbfc;
    --cg-top: #f7f8fa;
    --cg-term: #111216;
    --cg-term-line: rgba(16,17,20,0.9);
    --cg-term-ink: #ececf1;
    --cg-term-mute: #8b909c;
    --cg-gold: linear-gradient(180deg, #FFD23F, #FFB800);
    --cg-k: #b86e00;
    --cg-lh: 22px;
    --cg-tlh: 21px;
    --cg-fs: 13px;
    padding: 0; overflow: hidden; border-radius: 22px; contain: layout paint;
}
:root[data-theme="dark"] .cg {
    --cg-code: #0b0b0e;
    --cg-top: #0f0f12;
    --cg-term: #060608;
    --cg-term-line: rgba(255,255,255,0.08);
    --cg-k: #FFC800;
}
/* Loops wait while the scene is off screen or the tab is hidden. */
.cg:not(.cg-run) *, .cg:not(.cg-run) *::before, .cg:not(.cg-run) *::after { animation-play-state: paused !important; }

/* ------------------------------------------------------------------ steps */
.cg-steps { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 6px; padding: 8px; border-bottom: 1px solid var(--line); }
.cg-step { position: relative; display: flex; align-items: center; gap: 12px; min-width: 0; height: 58px; padding: 0 16px; border: 1px solid transparent; border-radius: 14px; background: transparent; color: var(--ink-2); font: inherit; text-align: left; cursor: pointer; overflow: hidden; transition: background .3s ease, border-color .3s ease, color .3s ease; }
.cg-step[hidden] { display: none; }
.cg-step:hover { color: var(--ink); }
.cg-step.on { background: var(--surface); border-color: var(--line-2); color: var(--ink); }
.cg-step:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.cg-step i { flex: none; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; font: 800 14px/1 'Manrope', sans-serif; font-style: normal; background: var(--surface-2); color: var(--ink-2); transition: background .3s ease, color .3s ease, box-shadow .3s ease; }
.cg-step.on i { background: var(--g-cta); color: #101114; box-shadow: 0 6px 18px rgba(255,180,0,0.35); }
.cg-step b { min-width: 0; font: 800 15px/1.2 'Manrope', sans-serif; letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cg-step .prog { position: absolute; left: 14px; right: 14px; bottom: 6px; height: 3px; border-radius: 99px; background: var(--line); overflow: hidden; opacity: 0; transition: opacity .3s ease; }
.cg-step .prog::before { content: ""; display: block; height: 100%; border-radius: inherit; background: var(--g-cta); transform: scaleX(0); transform-origin: 0 50%; }
.cg.auto .cg-step.on .prog { opacity: 1; }
.cg.auto .cg-step.on .prog::before { animation: cgProg var(--dur, 2600ms) linear forwards; animation-play-state: paused; }
.cg.auto .cg-step.on.alt .prog::before { animation-name: cgProg2; }
.cg.auto.cg-run:not(.cg-hold) .cg-step.on .prog::before { animation-play-state: running; }
@keyframes cgProg { to { transform: scaleX(1); } }
@keyframes cgProg2 { to { transform: scaleX(1); } }

/* ------------------------------------------------------------------ language + protocol */
.cg-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.cg-langs, .cg-proto { position: relative; display: flex; gap: 2px; padding: 4px; border-radius: 13px; background: var(--well); box-shadow: var(--well-in); border: 1px solid var(--line); }
.cg-langs button, .cg-proto button { position: relative; z-index: 1; flex: none; height: 36px; padding: 0 15px; border: 0; border-radius: 9px; background: transparent; color: var(--ink-2); font: 700 13.5px/1 'Manrope', sans-serif; white-space: nowrap; cursor: pointer; transition: color .25s ease; }
.cg-langs button:hover, .cg-proto button:hover { color: var(--ink); }
.cg-langs button.on, .cg-proto button.on { color: #101114; }
.cg-langs button:focus-visible, .cg-proto button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.cg-langs:not(.has-thumb) button.on, .cg-proto:not(.has-thumb) button.on { background: var(--cg-gold); }
.cg-thumb { position: absolute; left: 0; top: 0; z-index: 0; width: 0; height: 0; border-radius: 9px; background: var(--cg-gold); box-shadow: 0 6px 16px -6px rgba(255,180,0,0.6), inset 0 1px 0 rgba(255,255,255,0.5); pointer-events: none; transition: transform .42s cubic-bezier(.3,.8,.25,1), width .42s cubic-bezier(.3,.8,.25,1); }
.cg.one-proto .cg-proto { display: none; }

/* ------------------------------------------------------------------ body: editor | install, proxy, terminal */
.cg-body { position: relative; display: grid; grid-template-columns: minmax(0, 1.22fr) minmax(0, 1fr); grid-template-rows: auto auto minmax(0, 1fr); grid-template-areas: "ed inst" "ed prox" "ed term"; }
.cg-stack { display: grid; grid-template-rows: minmax(0, 1fr); }
.cg-stack > [data-l] { grid-area: 1 / 1; min-width: 0; min-height: 0; visibility: hidden; opacity: 0; transition: opacity .22s ease, visibility 0s linear .22s; }
.cg-stack > [data-l].on { visibility: visible; opacity: 1; transition: opacity .22s ease; }
.cg-code > .cg-pane:not(.on) { overflow: hidden; }

.cg-ed { grid-area: ed; display: flex; flex-direction: column; min-width: 0; background: var(--cg-code); border-right: 1px solid var(--line); }
.cg-ed-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; height: 48px; padding: 0 10px 0 18px; background: var(--cg-top); border-bottom: 1px solid var(--line); }
.cg-file { font: 500 12.5px/1 'IBM Plex Mono', monospace; color: var(--ink-2); }
.cg-code { position: relative; flex: 1 1 auto; min-height: 0; }
.cg-code::after { content: ""; position: absolute; top: 0; right: 0; bottom: 0; z-index: 2; width: 30px; background: linear-gradient(90deg, transparent, var(--cg-code)); pointer-events: none; }
.cg-pane { position: relative; display: flex; align-items: flex-start; padding: 16px 0 18px; overflow: auto; scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
.cg-gut { position: sticky; left: 0; z-index: 1; flex: none; align-self: stretch; width: 48px; padding-right: 16px; text-align: right; font: 500 12px/var(--cg-lh) 'IBM Plex Mono', monospace; color: var(--mute); background: var(--cg-code); white-space: pre; user-select: none; }
.cg-pane pre { position: relative; z-index: 0; flex: 1 0 auto; margin: 0; padding: 0 36px 0 0; font: 500 var(--cg-fs)/var(--cg-lh) 'IBM Plex Mono', monospace; color: var(--ink); background: none; white-space: pre; tab-size: 4; -moz-tab-size: 4; overflow: visible; }
.cg-pane code { font: inherit; color: inherit; background: none; padding: 0; }
.cg-pane .k { color: var(--cg-k); font-weight: 600; }
.cg-pane .n { color: var(--cg-k); }
.cg-pane .s { color: var(--green); }
.cg-hl { position: absolute; left: 0; right: 0; top: 0; z-index: 0; height: var(--cg-lh); background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); opacity: 0; pointer-events: none; transition: opacity .35s ease; }
.cg-hl.on { opacity: 1; }

/* The proxy string: slot folds away in step 1, suffixes glide in and out. */
.cg-p, .cg-x, .cg-port, .cg [data-s5] { display: inline-block; vertical-align: top; }
.cg-p { overflow: hidden; white-space: pre; transition: width .45s cubic-bezier(.3,.8,.25,1); }
.cg-p.cut { width: 0; }
.cg-pi { display: inline-block; white-space: pre; transition: opacity .2s ease; }
.cg-p.cut .cg-pi, .cg-p.wait .cg-pi { opacity: 0; }
.cg-x { width: 0; overflow: hidden; white-space: pre; transition: width .42s cubic-bezier(.3,.8,.25,1); }
.cg-x.on { width: auto; }
.cg-x > span { display: inline-block; color: var(--accent-ink); font-weight: 600; }
.cg-pw { padding: 0 3px; margin: 0 1px; border-radius: 4px; background: var(--accent-soft); color: var(--accent-ink); }
.cg .sw { animation: cgSwap .38s cubic-bezier(.3,.8,.25,1); }
@keyframes cgSwap { from { opacity: 0; transform: translateY(55%); } }

/* Install and proxy rows */
.cg-inst, .cg-prox { min-width: 0; padding: 14px 16px 14px 18px; border-bottom: 1px solid var(--line); }
.cg-inst { grid-area: inst; }
.cg-prox { grid-area: prox; }
.cg-lab { display: block; margin-bottom: 9px; font: 800 11px/1 'Manrope', sans-serif; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.cg-row { position: relative; display: flex; align-items: center; gap: 10px; min-width: 0; height: 44px; padding: 0 6px 0 12px; border-radius: 11px; background: var(--well); box-shadow: var(--well-in); border: 1px solid var(--line); }
.cg-row::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; border: 1.5px solid var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); opacity: 0; pointer-events: none; transition: opacity .3s ease; }
.cg-row.hot::after { opacity: 1; }
.cg-dollar { flex: none; font: 600 var(--cg-fs)/1 'IBM Plex Mono', monospace; color: var(--accent-ink); }
.cg-row > .cg-stack, .cg-line { flex: 1 1 auto; min-width: 0; font: 500 var(--cg-fs)/var(--cg-lh) 'IBM Plex Mono', monospace; color: var(--ink); white-space: nowrap; overflow-x: auto; overflow-y: hidden; padding-right: 26px; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 22px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 22px), transparent); }
.cg-row > .cg-stack::-webkit-scrollbar, .cg-line::-webkit-scrollbar { display: none; }
/* Once JS has measured a row, the fade marks only the side that still has text. */
.cg-row > .cg-stack.ovm:not(.is-over), .cg-line.ovm:not(.is-over) { -webkit-mask-image: none; mask-image: none; }
.cg-row > .cg-stack.is-over.at-end, .cg-line.is-over.at-end { -webkit-mask-image: linear-gradient(90deg, transparent, #000 22px); mask-image: linear-gradient(90deg, transparent, #000 22px); }
.cg-row > .cg-stack.is-over:not(.at-start):not(.at-end), .cg-line.is-over:not(.at-start):not(.at-end) { -webkit-mask-image: linear-gradient(90deg, transparent, #000 22px, #000 calc(100% - 22px), transparent); mask-image: linear-gradient(90deg, transparent, #000 22px, #000 calc(100% - 22px), transparent); }
.cg-row > .cg-stack > code { font: inherit; background: none; padding: 0; color: inherit; white-space: pre; }

.cg-copy { position: relative; z-index: 3; flex: none; display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 11px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--surface-solid); color: var(--ink); font: 700 12.5px/1 'Manrope', sans-serif; cursor: pointer; transition: border-color .2s ease, background .2s ease, color .2s ease; }
.cg-copy:hover { border-color: #FFB300; }
.cg-copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.cg-copy svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cg-copy span { min-width: 3.3em; text-align: left; }
.cg-copy.ok { background: var(--accent); border-color: var(--accent); color: #101114; }

/* Terminal: always dark, lines bottom-aligned, new lines slide up. */
.cg-term { grid-area: term; display: flex; flex-direction: column; min-height: 0; margin: 14px 16px 16px 18px; border-radius: 14px; background: var(--cg-term); border: 1px solid var(--cg-term-line); overflow: hidden; }
.cg-term-top { flex: none; display: flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.cg-term-top i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.cg-term-top span { margin-left: 8px; font: 700 12px/1 'Manrope', sans-serif; color: var(--cg-term-mute); }
.cg-log { position: relative; flex: 1 1 auto; min-height: calc(var(--cg-tlh) * 8 + 24px); padding: 12px 16px; overflow: hidden; }
.cg-log.over { -webkit-mask-image: linear-gradient(180deg, transparent 4px, #000 44px); mask-image: linear-gradient(180deg, transparent 4px, #000 44px); }
.cg-log-in { transition: opacity .2s ease; }
.cg-log-in.fade { opacity: 0; }
.cg-ln { height: var(--cg-tlh); font: 500 12.5px/var(--cg-tlh) 'IBM Plex Mono', monospace; color: var(--cg-term-ink); white-space: pre; overflow: hidden; text-overflow: ellipsis; }
.cg-ln .p { color: #FFC800; }
.cg-ln.o { color: var(--cg-term-mute); }
.cg-ln.ip { display: flex; align-items: center; gap: 10px; }
.cg-ln.ip em { font: 800 10px/1 'Manrope', sans-serif; font-style: normal; letter-spacing: 0.08em; padding: 4px 6px; border-radius: 5px; background: rgba(255,200,0,0.14); color: #FFC800; }
.cg-ln.ip em.same { background: rgba(255,255,255,0.08); color: #c9c9d1; }
.cg-ln.in { animation: cgIn .3s ease both; }
@keyframes cgIn { from { opacity: 0; } }
.cg-ln .t { position: relative; display: inline-block; vertical-align: top; overflow: hidden; }
/* Typing: a cover the colour of the terminal steps right one character at a time, the caret rides its edge. */
.cg-ln .t.typ::after { content: ""; position: absolute; top: 0; bottom: 0; left: 0; right: -1px; background: var(--cg-term); animation: cgType var(--d, 600ms) steps(var(--n, 10)) forwards; }
@keyframes cgType { to { transform: translateX(100%); } }
.cg-caret { display: inline-block; vertical-align: top; width: 7px; height: 15px; margin-top: 3px; background: #FFC800; animation: cgBlink 1s steps(1) infinite; }
.cg-ln .t.typ + .cg-caret { animation: cgCaret var(--d, 600ms) steps(var(--n, 10)) both, cgBlink 1s steps(1) var(--d, 600ms) infinite; }
@keyframes cgCaret { from { transform: translateX(calc(var(--n, 10) * -1ch)); } to { transform: none; } }
@keyframes cgBlink { 50% { opacity: 0; } }

/* Step 2: the proxy line glides from "Your proxy" into the code. */
.cg-fly { position: absolute; left: 0; top: 0; z-index: 5; margin-left: -6px; padding: 0 6px; border-radius: 7px; font: 500 var(--cg-fs)/var(--cg-lh) 'IBM Plex Mono', monospace; color: var(--ink); white-space: pre; background: var(--surface-solid); box-shadow: 0 0 0 1.5px rgba(255,190,0,0.75), 0 12px 30px -10px rgba(255,160,0,0.55); pointer-events: none; }

/* ------------------------------------------------------------------ tablet and phone */
@media (max-width: 1020px) {
    .cg-step { gap: 10px; padding: 0 12px; }
    .cg-step b { font-size: 14px; }
}
@media (max-width: 860px) {
    .cg-body { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto; grid-template-areas: "inst" "prox" "ed" "term"; }
    .cg-ed { border-right: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .cg-prox { border-bottom: 0; padding-bottom: 16px; }
    .cg-inst { padding-bottom: 12px; border-bottom: 0; }
    .cg-term { margin: 14px; }
    .cg-log { flex: none; height: calc(var(--cg-tlh) * 7 + 24px); min-height: 0; }
    .cg-code { flex: none; height: calc(var(--cg-lh) * 13 + 34px); }
    /* JS sets the box to the tallest snippet; one far taller scrolls inside it with a bottom fade. */
    .cg-pane.tall:not(.at-bot) { -webkit-mask-image: linear-gradient(180deg, #000 calc(100% - 28px), transparent); mask-image: linear-gradient(180deg, #000 calc(100% - 28px), transparent); }
    .cg-pane.tall:not(.at-top) { -webkit-mask-image: linear-gradient(180deg, transparent, #000 28px); mask-image: linear-gradient(180deg, transparent, #000 28px); }
    .cg-pane.tall:not(.at-top):not(.at-bot) { -webkit-mask-image: linear-gradient(180deg, transparent, #000 28px, #000 calc(100% - 28px), transparent); mask-image: linear-gradient(180deg, transparent, #000 28px, #000 calc(100% - 28px), transparent); }
}
@media (max-width: 720px) {
    .cg { --cg-lh: 20px; --cg-tlh: 20px; --cg-fs: 12px; border-radius: 18px; }
    .cg-steps { display: flex; gap: 4px; padding: 6px; overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10px, #000 calc(100% - 26px), transparent); mask-image: linear-gradient(90deg, transparent, #000 10px, #000 calc(100% - 26px), transparent); }
    .cg-steps::-webkit-scrollbar { display: none; }
    .cg-step { flex: none; height: 50px; gap: 9px; padding: 0 14px 0 10px; border-radius: 12px; }
    .cg-step i { width: 28px; height: 28px; font-size: 13px; }
    .cg-step b { font-size: 14px; overflow: visible; }
    .cg-step .prog { left: 10px; right: 10px; bottom: 5px; }
    .cg-bar { flex-wrap: wrap; gap: 8px; padding: 8px; }
    .cg-langs { width: 100%; overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8px, #000 calc(100% - 22px), transparent); mask-image: linear-gradient(90deg, transparent, #000 8px, #000 calc(100% - 22px), transparent); }
    .cg-langs::-webkit-scrollbar { display: none; }
    .cg-langs button { padding: 0 14px; font-size: 13px; }
    .cg-proto { width: 100%; }
    .cg-proto button { flex: 1 1 0; font-size: 13px; }
    .cg-inst, .cg-prox { padding-left: 14px; padding-right: 14px; }
    .cg-row { height: 42px; padding-left: 10px; gap: 8px; }
    .cg-copy { height: 32px; padding: 0 9px; }
    .cg-copy span { display: none; }
    .cg-copy.ok span { display: inline; }
    .cg-ed-top { height: 44px; padding-left: 14px; }
    .cg-ed-top .cg-copy span { display: inline; }
    .cg-gut { width: 38px; padding-right: 12px; font-size: 11px; }
    .cg-pane pre { padding-right: 28px; }
    .cg-term { margin: 12px; }
    .cg-ln { font-size: 12px; }
}

/* ------------------------------------------------------------------ reduced motion: the final frame, still */
@media (prefers-reduced-motion: reduce) {
    .cg *, .cg *::before, .cg *::after { animation: none !important; transition: none !important; }
    .cg-step .prog { display: none; }
}

/* ------------------------------------------------------------------ glass pages (html.glass), both themes */
:root.glass[data-theme] .cg { --cg-gold: var(--g-orange); --cg-k: var(--accent-ink); }
:root.glass[data-theme="dark"] .cg { --cg-code: #060607; --cg-top: rgba(255,255,255,0.02); --cg-term: #050506; --cg-term-line: rgba(255,255,255,0.07); --cg-k: #FF9F0A; }
:root.glass[data-theme="light"] .cg { --cg-code: #f7f7f9; --cg-top: #f2f2f5; --cg-term: #111114; --cg-term-line: rgba(16,17,20,0.9); }
:root.glass[data-theme] .cg-step.on { background: var(--gl-fill); border-color: var(--gl-line); box-shadow: var(--gl-in); }
:root.glass[data-theme] .cg-step.on i { background: var(--g-orange); color: var(--on-accent); box-shadow: inset 0 1px 0 rgba(255,255,255,0.45), 0 6px 18px -6px rgba(255,130,0,0.7); }
:root.glass[data-theme] .cg-step .prog::before { background: var(--g-orange); }
:root.glass[data-theme] .cg-langs, :root.glass[data-theme] .cg-proto, :root.glass[data-theme] .cg-row { background: var(--gl-well); border-color: var(--gl-well-line); box-shadow: var(--gl-well-in); }
:root.glass[data-theme] .cg-langs button.on, :root.glass[data-theme] .cg-proto button.on { color: var(--on-accent); }
:root.glass[data-theme] .cg-thumb { box-shadow: 0 6px 16px -6px rgba(255,130,0,0.7), inset 0 1px 0 rgba(255,255,255,0.45); }
:root.glass[data-theme] .cg-row::after { border-color: #FF9F0A; }
:root.glass[data-theme] .cg-dollar, :root.glass[data-theme] .cg-x > span, :root.glass[data-theme] .cg-pw { color: var(--accent-ink); }
:root.glass[data-theme] .cg-copy { border-color: var(--gl-line); background: var(--gl-btn); }
:root.glass[data-theme] .cg-copy:hover { border-color: var(--gl-line-hot); background: var(--gl-btn-hot); }
:root.glass[data-theme] .cg-copy.ok { border-color: transparent; background: var(--g-orange); color: var(--on-accent); }
:root.glass[data-theme] .cg-term { border-radius: 20px; }
:root.glass[data-theme] .cg-ln .p { color: #FF9F0A; }
:root.glass[data-theme] .cg-ln.ip em { background: rgba(255,159,10,0.14); color: #FF9F0A; }
:root.glass[data-theme] .cg-caret { background: #FF9F0A; }
:root.glass[data-theme] .cg-fly { background: var(--surface-solid); box-shadow: 0 0 0 1.5px rgba(255,159,10,0.75), 0 12px 30px -10px rgba(255,130,0,0.55); }
@media (max-width: 720px) {
    :root.glass[data-theme] .cg-term { border-radius: 16px; }
}