/* The Echo-style demo page. Theme tokens first, then the layout. */
/*
 * One family, from the subject: the night sky the satellites cross, and the sun that disturbs them. Deep navy
 * grounds, one warm amber accent for what can be pressed, and the Echo screen's own dot in the same amber. It
 * used to mix a blue accent, an orange dot and a brown second accent, which read as three products.
 */
:root {
  --display: 'Space Grotesk', system-ui, sans-serif;
  --display-weight: 600;
  --body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Consolas, monospace;
  --screen-accent: #ffb547;
  --bg: #070b16;
  --surface: #0e1424;
  --surface-2: #141c30;
  --line: #24304a;
  --line-soft: #182136;
  --ink: #eef2fa;
  --ink-2: #c4cde0;
  --soft: #97a3bd;
  --accent: #ffb547;
  --accent-ink: #1a1205;
  --accent-2: #ffd08a;
  --good: #6fd3a0;
  --bad: #ff8a80;
}
/* Light mode: the system setting, or the button in the bar. The Echo Show's screen stays dark, as the device's does. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f6fa;
    --surface: #ffffff;
    --surface-2: #eef1f7;
    --line: #dbe1ec;
    --line-soft: #e8ecf3;
    --ink: #0b1220;
    --ink-2: #263450;
    --soft: #52607a;
    --accent: #9a5200;
    --accent-ink: #ffffff;
    --accent-2: #7a4100;
    --good: #1f7a4d;
    --bad: #b3261e;
  }
}
:root[data-theme="light"] {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #eef1f7;
  --line: #dbe1ec;
  --line-soft: #e8ecf3;
  --ink: #0b1220;
  --ink-2: #263450;
  --soft: #52607a;
  --accent: #9a5200;
  --accent-ink: #ffffff;
  --accent-2: #7a4100;
  --good: #1f7a4d;
  --bad: #b3261e;
}

/* The sky behind everything (sky.js). Content sits above it; the canvas never takes a click. */
.sky { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
body > header, body > main, body > details, body > footer { position: relative; z-index: 1; }

/*
 * Layout. Spacing, radii and type follow the Alexa+ add-on visual foundations: an 8px grid
 * (2, 6, 8, 12, 16, 20, 24 and multiples), radii of 8, 12 and 16, flat surfaces with no gradient fields,
 * and the bright colour kept for final actions. Quiet by default: one thing on screen at a time.
 */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
button { font: inherit; cursor: pointer; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); color: var(--ink); padding: 8px 12px; border-radius: 8px; z-index: 5; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.label { font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--soft); margin: 0 0 16px; }

/* ---------------------------------------------------------------- top bar */
.bar { display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; justify-content: space-between; max-width: 1280px; margin: 0 auto; padding: 32px clamp(16px, 4vw, 48px) 0; }
.brand { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; min-width: 0; }
.home { font: var(--display-weight) 28px/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.tag { margin: 0; color: var(--soft); font-size: 15px; }
.bar-end { display: flex; align-items: center; gap: 12px; }
.pill { display: inline-flex; align-items: center; gap: 8px; font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soft); padding: 8px 0; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--good); display: inline-block; }
.voice { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--soft); cursor: pointer; white-space: nowrap; }
.voice input { appearance: none; width: 36px; height: 20px; border-radius: 9999px; background: var(--surface-2); border: 1px solid var(--line); position: relative; cursor: pointer; margin: 0; transition: background .2s; }
.voice input::after { content: ''; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--soft); transition: transform .2s, background .2s; }
.voice input:checked { background: var(--ink); border-color: var(--ink); }
.voice input:checked::after { transform: translateX(16px); background: var(--bg); }
.voice input:focus-visible, .theme:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--soft); display: grid; place-items: center; transition: color .2s, border-color .2s; }
.theme:hover { color: var(--ink); border-color: var(--soft); }
.theme svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.theme .moon { display: none; }
:root[data-theme="light"] .theme .sun { display: none; }
:root[data-theme="light"] .theme .moon { display: block; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme .sun { display: none; }
  :root:not([data-theme="dark"]) .theme .moon { display: block; }
}

/* ---------------------------------------------------------------- stage */
.stage { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(300px, 1fr); gap: 48px; max-width: 1280px; margin: 0 auto; padding: 48px clamp(16px, 4vw, 48px) 24px; align-items: start; }
@media (max-width: 960px) { .stage { grid-template-columns: 1fr; gap: 40px; padding-top: 32px; } }

/* The Echo Show: a flat screen in a thin black bezel, on a fabric base. */
.bezel { background: #050608; border-radius: 24px; padding: 14px; position: relative; }
.bezel::before { content: ''; position: absolute; top: 5px; left: 50%; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: #22262d; }
.base { height: 32px; margin: 0 6%; border-radius: 0 0 28px 28px / 0 0 20px 20px; background-color: #2a2d33; background-image: radial-gradient(rgba(255, 255, 255, .08) 1px, transparent 1.3px); background-size: 4px 4px; }
.screen { border-radius: 12px; min-height: clamp(320px, 36vw, 420px); padding: clamp(20px, 3vw, 32px) clamp(20px, 3.4vw, 40px); background: #0a1020; color: #f2f3f5; overflow: hidden; display: flex; flex-direction: column; }
.sbar { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: #9aa2af; }
.who { display: inline-flex; align-items: center; gap: 8px; }
.who .dot { background: var(--screen-accent); }

.idle-view { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; padding-top: 24px; }
.clock { margin: 0; font: 300 clamp(56px, 8vw, 88px)/1 var(--body); letter-spacing: -.035em; }
.greet { margin: 12px 0 32px; font: 400 clamp(18px, 2.2vw, 24px)/1.3 var(--body); color: #b4bbc6; }
.try { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.chip.try-card { display: flex; flex-direction: column; justify-content: flex-start; gap: 6px; text-align: left; border: 0; border-radius: 12px; background: #141c2e; color: #f2f3f5; padding: 16px 20px; font-size: 16px; line-height: 1.45; transition: background .2s; }
.chip.try-card:hover, .chip.try-card:focus-visible { background: #1c2740; outline: none; }
.try-card small { display: block; font: 500 11px/1 var(--mono); letter-spacing: .12em; color: #8b94a3; }

.live-view { display: none; flex: 1; flex-direction: column; gap: 16px; padding-top: 24px; }
.screen.live .idle-view { display: none; }
.screen.live .live-view { display: flex; animation: settle .4s ease-out; }
@keyframes settle { from { opacity: 0; } to { opacity: 1; } }
.heard { margin: 0; color: #8b94a3; font-size: 15px; }
.heard::before { content: '\201C'; }
.heard::after { content: '\201D'; }
.heard.idle::before, .heard.idle::after { content: ''; }
.answer { margin: 0; font: 400 clamp(20px, 2.3vw, 26px)/1.5 var(--body); letter-spacing: -.005em; flex: 1; max-width: 34em; }
.meta { margin: 0; font: 500 11px var(--mono); letter-spacing: .04em; color: #6f7886; }
.card { background: #141c2e; border-radius: 12px; padding: 16px 20px; }
.card h3 { margin: 0 0 8px; font: 600 17px/1.3 var(--body); }
.card .status { display: inline-block; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 4px 8px; border-radius: 9999px; background: #1f2a42; margin-bottom: 8px; color: #d3d7de; }
.card .status.bad { color: #ffb4a8; }
.card .status.good { color: #8fdcb4; }
.card ul { margin: 0; padding-left: 18px; color: #b4bbc6; font-size: 15px; }
.card a { color: var(--screen-accent); }

/* Say anything: one quiet bar. The mic is the only filled control here. */
.free { display: flex; align-items: center; gap: 8px; margin-top: 32px; padding: 6px; border: 1px solid var(--line); border-radius: 9999px; background: var(--surface); transition: border-color .2s; }
.free:focus-within { border-color: var(--soft); }
.mic { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--ink); color: var(--bg); display: grid; place-items: center; }
.mic:hover { opacity: .88; }
.mic svg { width: 20px; height: 20px; fill: currentColor; }
.mic.listening, .mic[disabled] { background: var(--accent); color: var(--accent-ink); animation: breathe 1.6s ease-in-out infinite; }
@keyframes breathe { 50% { opacity: .65; } }
.mic-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.free input { flex: 1; min-width: 0; font: inherit; font-size: 16px; padding: 10px 4px; border: 0; background: transparent; color: var(--ink); outline: none; }
.free input::placeholder { color: var(--soft); }
.send { flex: none; border: 0; border-radius: 9999px; padding: 10px 20px; background: transparent; color: var(--ink); font-weight: 500; }
.send:hover, .send:focus-visible { background: var(--surface-2); outline: none; }
.free button[disabled] { cursor: progress; }
.send[disabled] { opacity: .5; }
.hint { margin: 12px 20px 0; font-size: 13px; color: var(--soft); max-width: 60ch; }

/* ---------------------------------------------------------------- side: phone and trace */
.side { display: flex; flex-direction: column; gap: 32px; }
.handset { background: var(--surface); border: 8px solid #050608; border-radius: 40px; padding: 12px 20px 20px; min-height: 420px; display: flex; flex-direction: column; }
.phone-status { display: flex; justify-content: space-between; align-items: center; font-size: 12px; font-weight: 600; color: var(--soft); padding: 2px 8px 12px; }
.notch { width: 84px; height: 22px; border-radius: 9999px; background: #050608; }
.thread-head { display: flex; align-items: center; gap: 12px; padding: 4px 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.thread-head h2 { margin: 0; font-size: 15px; font-weight: 600; line-height: 1.3; }
.thread-head p { margin: 0; font-size: 13px; color: var(--soft); }
.avatar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); color: var(--ink); font-weight: 600; font-size: 14px; }
.note { margin: auto 0 0; padding-top: 16px; font-size: 12px; color: var(--soft); }
.inbox { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.inbox li { background: var(--surface-2); border-radius: 16px 16px 16px 4px; padding: 12px 16px; animation: settle .4s ease-out; }
.inbox h3 { margin: 0 0 6px; font-size: 14px; font-weight: 600; }
.inbox p { margin: 0 0 12px; font-size: 14px; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--ink-2); }
.inbox .done { color: var(--good); font-size: 13px; margin: 0; }
.empty { color: var(--soft); font-size: 14px; margin: 48px 0; text-align: center; }
/* The final actions: the one place the bright colour is used. */
.act { padding: 8px 16px; border-radius: 9999px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); margin: 0 6px 6px 0; font-size: 13px; font-weight: 600; }
.act.second { background: transparent; color: var(--ink); border-color: var(--line); }
.handset a { color: var(--accent-2); }

.behind { padding: 0 4px; }
.what { margin: 0 0 16px; font-size: 13px; color: var(--soft); }
.trace { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.trace li { display: flex; justify-content: space-between; gap: 12px; font: 500 12px var(--mono); color: var(--ink); padding: 10px 0; border-bottom: 1px solid var(--line); animation: settle .3s ease-out; }
.trace li span:last-child { color: var(--soft); white-space: nowrap; }
.trace-empty { margin: 0; padding-top: 12px; font-size: 13px; color: var(--soft); border-top: 1px solid var(--line); }
.trace:not(:empty) + .trace-empty { display: none; }

/* ---------------------------------------------------------------- the steps: three columns on a hairline */
.lines { max-width: 1280px; margin: 0 auto; padding: 48px clamp(16px, 4vw, 48px) 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px 48px; counter-reset: step; }
.lines > div { border-top: 1px solid var(--line); padding-top: 20px; counter-increment: step; }
.lines h2 { margin: 0 0 16px; font: 600 17px/1.3 var(--body); color: var(--ink); }
.lines h2::before { content: '0' counter(step); display: block; margin-bottom: 8px; font: 500 12px/1 var(--mono); letter-spacing: .12em; color: var(--soft); }
.lines .chip { position: relative; display: block; width: 100%; text-align: left; padding: 10px 24px 10px 0; margin: 0; border: 0; border-bottom: 1px solid var(--line-soft); background: transparent; color: var(--ink-2); font-size: 15px; line-height: 1.45; transition: color .15s, padding .15s; }
.lines .chip:last-child { border-bottom: 0; }
.lines .chip::after { content: '\2192'; position: absolute; right: 0; top: 10px; color: var(--soft); opacity: 0; transition: opacity .15s; }
.lines .chip:hover, .lines .chip:focus-visible { color: var(--ink); padding-left: 4px; outline: none; }
.lines .chip:hover::after, .lines .chip:focus-visible::after { opacity: 1; }
.chip[disabled] { opacity: .5; cursor: progress; }

.foot { max-width: 1280px; margin: 0 auto; padding: 24px clamp(16px, 4vw, 48px) 48px; color: var(--soft); font-size: 13px; }
.link { background: none; border: 0; padding: 8px 4px; margin: -8px -4px; min-height: 24px; cursor: pointer; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

/* Lines that take something typed (none on the page today). */
.chip-form { display: grid; grid-template-columns: 1fr auto; gap: 6px 8px; margin: 0 0 8px; padding: 12px 0; border-bottom: 1px solid var(--line-soft); }
.chip-form label { grid-column: 1 / -1; color: var(--ink-2); font-size: 15px; }
.typed { font: inherit; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); min-width: 0; }
.chip-form .chip.go { width: auto; border: 1px solid var(--line); border-radius: 9999px; padding: 6px 14px; }

/* One hint at the foot of the idle screen, as the Echo Show's own footer gives. Gone once anything is said. */
.idle-view { padding-bottom: 8px; }
.greet { margin-bottom: 0; }
.hint-foot { margin: 24px 0 0; font-size: 15px; color: #8b94a3; }
.screen.live .hint-foot { display: none; }

/* When the question is about. */
.when { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 16px 20px 0; }
.when-label { font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--soft); margin-right: 4px; }
.seg { border: 1px solid var(--line); background: transparent; color: var(--soft); border-radius: 9999px; padding: 6px 14px; font-size: 14px; transition: color .15s, border-color .15s, background .15s; }
.seg:hover { color: var(--ink); border-color: var(--soft); }
.seg[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.seg:focus-visible, .when input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.when input { font: inherit; font-size: 14px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; color-scheme: light dark; }
.when-note { flex-basis: 100%; font-size: 13px; color: var(--soft); }

/* The scripted lines, folded away: for testing without a microphone. */
.manual { max-width: 1280px; margin: 0 auto; padding: 24px clamp(16px, 4vw, 48px) 0; }
.manual summary { cursor: pointer; list-style: none; display: inline-flex; align-items: center; gap: 10px; font-size: 15px; color: var(--soft); padding: 12px 0; border-top: 1px solid var(--line); width: 100%; }
.manual summary::-webkit-details-marker { display: none; }
.manual summary::before { content: '+'; font: 500 16px/1 var(--mono); width: 16px; color: var(--soft); }
.manual[open] summary::before { content: '\2212'; }
.manual summary:hover, .manual summary:focus-visible { color: var(--ink); outline: none; }
.manual .lines { padding-left: 0; padding-right: 0; padding-top: 16px; }

@media (max-width: 640px) {
  .tag, .bar-end .pill { display: none; }
  .bar { padding-top: 20px; }
  .free { border-radius: 24px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* Start again sits with the controls it resets, not in the footer, where people did not find it. */
.restart { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 9999px; padding: 6px 14px; font: inherit; font-size: 14px; cursor: pointer; transition: border-color .15s, background .15s; }
.restart:hover { border-color: var(--soft); background: var(--surface); }
.restart:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.restart svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Another time: one-tap choices, a date and a time apart, and the choice said back in words. */
.when-panel { flex-basis: 100%; display: grid; gap: 12px; margin-top: 4px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.when-panel[hidden] { display: none; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.preset { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 9999px; padding: 6px 12px; font: inherit; font-size: 14px; cursor: pointer; }
.preset:hover { border-color: var(--soft); }
.preset[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.preset:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.when-fields { display: flex; flex-wrap: wrap; gap: 12px; }
.when-field { display: grid; gap: 4px; font-size: 12px; color: var(--soft); letter-spacing: .04em; }
.when-field span { font: 500 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.when-readout { margin: 0; font-size: 14px; color: var(--ink-2); }
.chip .who { display: block; margin-top: 2px; font-size: 12px; opacity: .75; }