.voice-case { --voice-green: #1c5948; --voice-mint: #dceae0; --voice-soft: #f1f4ee; --voice-line: #cdd4cb; --voice-muted: #5b625a; background: #fbfcf9; }
.voice-case .case-shell { width: min(1180px, calc(100% - 56px)); }
.voice-case :target { scroll-margin-top: 26px; }
.voice-case :focus-visible { outline: 3px solid var(--voice-green); outline-offset: 5px; }
.voice-skip { position: absolute; top: -80px; left: 20px; z-index: 10; padding: 14px 20px; background: #171717; color: #fff; }
.voice-skip:focus { top: 15px; }
.voice-hero { display: grid; grid-template-columns: 1.14fr 1fr; gap: 52px; align-items: center; padding: 76px 0 64px; }
.voice-hero h1 { margin: 0; font-size: clamp(54px, 6.3vw, 82px); font-weight: 570; letter-spacing: -.066em; line-height: .99; }
.voice-hero h1 em { color: var(--voice-green); font-style: normal; }
.voice-hero .case-lead { max-width: 540px; margin-top: 27px; font-size: 18px; line-height: 1.6; }
.voice-hero-actions { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 31px; }
.voice-call-link { display: inline-flex; gap: 10px; align-items: center; min-height: 49px; padding: 0 19px; background: var(--voice-green); color: white; border: 1px solid var(--voice-green); text-decoration: none; font-family: inherit; font-size: 14px; font-weight: 650; }
.voice-call-link:not(:disabled):hover { background: #123f33; }
.voice-call-link:disabled { background: #e9ece6; border-color: #cdd2ca; color: #777e74; cursor: not-allowed; opacity: 1; -webkit-text-fill-color: currentColor; }
.voice-call-link svg { width: 20px; height: 20px; fill: currentColor; }
.voice-call-link > span { margin-left: 10px; }
.voice-text-link { text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 4px; font-size: 13px; font-weight: 650; }
.voice-text-link span { margin-left: 10px; }
.voice-cover { position: relative; margin: 0; min-height: 520px; padding: 25px 27px 20px; border: 1px solid var(--voice-green); color: #173e32; background: var(--voice-mint); }
.voice-cover-top { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid #a1b8a8; font-size: 9px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.voice-phone-mark { position: relative; width: 145px; margin: 28px auto 29px; }
.voice-phone-mark svg { display: block; width: 126px; fill: var(--voice-green); }
.voice-signal { position: absolute; display: block; border: 2px solid var(--voice-green); border-left: 0; border-bottom: 0; border-radius: 0 100% 0 0; }
.signal-one { top: 18px; right: 6px; width: 22px; height: 22px; }
.signal-two { top: 1px; right: -10px; width: 36px; height: 36px; }
.cover-conversation { display: grid; gap: 15px; }
.cover-conversation > div { display: grid; grid-template-columns: 60px 1fr; gap: 13px; }
.cover-conversation span { padding-top: 4px; font-size: 9px; font-weight: 750; letter-spacing: .07em; text-transform: uppercase; }
.cover-conversation p { margin: 0; font-size: 18px; font-weight: 530; letter-spacing: -.02em; line-height: 1.4; }
.cover-conversation .cover-tool { padding: 13px 0; border-top: 1px solid #a1b8a8; border-bottom: 1px solid #a1b8a8; }
.cover-tool code { font-size: 11px; align-self: center; overflow-wrap: anywhere; }
.voice-cover figcaption { margin-top: 27px; font-size: 10px; color: #486352; }
.voice-facts { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; border-top: 1px solid #171717; border-bottom: 1px solid var(--voice-line); }
.voice-facts div { padding: 21px 20px; border-right: 1px solid var(--voice-line); }
.voice-facts div:first-child { padding-left: 0; }
.voice-facts div:last-child { border-right: 0; }
.voice-facts dt { margin-bottom: 9px; color: var(--voice-muted); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.voice-facts dd { margin: 0; font-size: 13px; font-weight: 600; line-height: 1.5; }
.voice-call-status { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 28px 0; border-bottom: 1px solid var(--voice-line); }
.voice-call-status .section-kicker { margin-bottom: 10px; font-size: 9px; }
.voice-case .voice-call-status h2 { font-size: 25px; letter-spacing: -.035em; }
.voice-call-status p[data-call-status-copy] { margin: 9px 0 0; color: var(--voice-muted); font-size: 12px; line-height: 1.6; }
.voice-call-status-action { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.call-online { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: #245a48; text-decoration: underline; text-underline-offset: 4px; white-space: nowrap; }
.call-online > span { display: block; width: 7px; height: 7px; border-radius: 50%; background: #287654; }
.call-online:disabled { padding: 0; border: 0; background: none; color: #777e74; font-family: inherit; text-decoration: none; cursor: not-allowed; opacity: 1; -webkit-text-fill-color: currentColor; }
.call-online:disabled > span { background: #a4aaa0; }
.voice-call-status .voice-text-link { font-size: 11px; }
.voice-section { display: grid; grid-template-columns: .85fr 1.4fr; gap: 85px; padding: 85px 0; }
.voice-case h2 { margin: 0; font-size: clamp(34px, 4vw, 49px); font-weight: 560; letter-spacing: -.052em; line-height: 1.06; }
.voice-body-copy p { margin: 0 0 20px; color: var(--voice-muted); font-size: 18px; line-height: 1.65; }
.voice-body-copy p:last-child { margin-bottom: 0; }
.voice-section-head { margin-bottom: 31px; }
.voice-section-head > p:last-child { max-width: 740px; margin: 18px 0 0; color: var(--voice-muted); font-size: 16px; line-height: 1.6; }
.voice-architecture { padding: 60px 0 69px; border-top: 1px solid var(--voice-line); }
.voice-system { padding: 28px; border: 1px solid var(--voice-line); background: #fff; }
.system-conversation, .system-actions { display: grid; grid-template-columns: 1fr 35px 1fr 35px 1fr; align-items: stretch; }
.system-node { position: relative; padding: 20px; border: 1px solid var(--voice-line); min-width: 0; background: #fbfcf9; }
.system-number { display: block; margin-bottom: 26px; color: var(--voice-muted); font: 11px ui-monospace, SFMono-Regular, Consolas, monospace; }
.system-node h3 { margin: 0 0 10px; font-size: 19px; font-weight: 620; letter-spacing: -.04em; }
.system-node p { margin: 0; color: var(--voice-muted); font-size: 13px; line-height: 1.65; }
.system-node small { display: block; margin-top: 20px; color: var(--voice-muted); font-size: 9px; line-height: 1.5; }
.system-node code { display: block; margin: 0 0 14px; font-size: 11px; line-height: 1.8; overflow-wrap: anywhere; }
.system-node-model, .system-node-store { border-color: var(--voice-green); background: #eaf1e9; }
.system-edge { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; font-size: 22px; color: var(--voice-green); }
.system-edge small { font-size: 8px; font-style: normal; color: var(--voice-muted); }
.system-down { display: flex; justify-content: space-between; padding: 17px 0; color: var(--voice-green); font: 10px ui-monospace, SFMono-Regular, Consolas, monospace; }
.graph-branches { display: flex; flex-direction: column; gap: 7px; margin: 18px 0; font: 11px ui-monospace, SFMono-Regular, Consolas, monospace; }
.graph-branches span { padding-bottom: 7px; border-bottom: 1px solid var(--voice-line); }
.voice-diagram-note { max-width: 960px; margin: 16px 0 0; color: var(--voice-muted); font-size: 12px; line-height: 1.65; }
.voice-walkthrough { padding: 55px 0 80px; border-top: 1px solid var(--voice-line); }
.voice-lab { border: 1px solid var(--voice-green); background: #fff; }
.lab-top { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 23px; color: var(--voice-muted); border-bottom: 1px solid var(--voice-line); font-size: 10px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.lab-reset { padding: 5px 0; border: 0; background: none; color: var(--voice-muted); font-size: 11px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.lab-reset span { margin-left: 6px; }
.lab-choices { display: flex; flex-wrap: wrap; gap: 8px; padding: 20px 23px; border-bottom: 1px solid var(--voice-line); }
.lab-choices button { padding: 10px 13px; border: 1px solid var(--voice-line); background: white; color: var(--voice-green); font-size: 12px; font-weight: 600; cursor: pointer; }
.lab-choices button[aria-pressed="true"] { border-color: var(--voice-green); color: #fff; background: var(--voice-green); }
.lab-choices button:hover { border-color: var(--voice-green); }
.lab-content { display: grid; grid-template-columns: .95fr 1.35fr .8fr; min-height: 323px; }
.lab-content > div { padding: 27px 23px; border-right: 1px solid var(--voice-line); min-width: 0; }
.lab-content > div:last-child { border-right: 0; background: var(--voice-soft); }
.lab-label { display: block; color: var(--voice-muted); font-size: 9px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.lab-request > p { margin: 17px 0 28px; font-size: 19px; line-height: 1.4; letter-spacing: -.025em; }
.lab-stages { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; counter-reset: stages; }
.lab-stages li { display: flex; gap: 9px; align-items: center; color: #737a72; font-size: 10px; }
.lab-stages li::before { counter-increment: stages; content: counter(stages); display: grid; place-items: center; width: 18px; height: 18px; border: 1px solid var(--voice-line); border-radius: 50%; font-size: 9px; }
.lab-stages li[aria-current="step"] { color: var(--voice-green); font-weight: 750; }
.lab-stages li[aria-current="step"]::before { background: var(--voice-green); color: #fff; border-color: var(--voice-green); }
.lab-stages li.is-complete::before { border-color: var(--voice-green); color: var(--voice-green); }
.lab-trace h3 { margin: 17px 0 13px; font-size: 22px; font-weight: 600; line-height: 1.2; letter-spacing: -.04em; }
.lab-trace p { color: var(--voice-muted); font-size: 13px; line-height: 1.6; }
.lab-trace pre { padding: 14px 13px; margin: 21px 0 0; background: #f3f5ef; border-left: 2px solid var(--voice-green); font-size: 10px; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
.lab-storage > code { display: block; margin: 20px 0 18px; font-size: 10px; }
.lab-storage ul { display: flex; flex-direction: column; gap: 8px; margin: 0; padding: 0; list-style: none; }
.lab-storage li { border: 1px solid #becbbd; background: #fff; padding: 11px; font: 14px ui-monospace, SFMono-Regular, Consolas, monospace; }
.lab-storage li.is-removed { border-style: dashed; color: #777e75; text-decoration: line-through; background: transparent; }
.lab-storage > p { margin: 17px 0 0; font-size: 11px; color: var(--voice-muted); line-height: 1.6; }
.lab-controls { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 16px 23px; border-top: 1px solid var(--voice-line); }
.lab-controls p { margin: 0; color: var(--voice-muted); font-size: 11px; }
.lab-next { display: flex; align-items: center; gap: 18px; padding: 12px 16px; border: 1px solid var(--voice-green); background: var(--voice-green); color: white; font-size: 12px; font-weight: 600; cursor: pointer; }
.lab-next:hover { background: #123f33; }
.lab-noscript { padding: 15px 23px; color: var(--voice-muted); font-size: 12px; }
.voice-implementation { border-top: 1px solid var(--voice-line); }
.voice-decisions article { display: grid; grid-template-columns: 24px 1fr; gap: 16px; margin-bottom: 27px; padding-bottom: 27px; border-bottom: 1px solid var(--voice-line); }
.voice-decisions article:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: 0; }
.voice-decisions article > span { padding-top: 5px; font: 11px ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--voice-green); }
.voice-decisions h3 { margin: 0 0 11px; font-size: 20px; font-weight: 600; letter-spacing: -.03em; }
.voice-decisions p { margin: 0; color: var(--voice-muted); font-size: 15px; line-height: 1.7; }
.voice-decisions code { font-size: .85em; color: #365241; background: #edf1e9; padding: 1px 3px; overflow-wrap: anywhere; }
.voice-extension { padding: 55px 0 55px; border-top: 1px solid var(--voice-line); border-bottom: 1px solid var(--voice-line); }
.voice-extension-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0 80px; align-items: end; }
.voice-extension-intro .section-kicker { grid-column: 1 / -1; }
.voice-extension-intro h2 { font-size: clamp(30px, 3.4vw, 42px); }
.voice-extension-intro > p:last-child { margin: 0; color: var(--voice-muted); font-size: 16px; line-height: 1.65; }
.extension-detail { display: grid; grid-template-columns: repeat(3, 1fr); margin: 33px 0 0; border-top: 1px solid var(--voice-line); border-bottom: 1px solid var(--voice-line); }
.extension-detail > div { padding: 22px 22px; border-right: 1px solid var(--voice-line); }
.extension-detail > div:first-child { padding-left: 0; }
.extension-detail > div:last-child { padding-right: 0; border-right: 0; }
.extension-detail span { font-size: 12px; font-weight: 650; }
.extension-detail p { margin: 12px 0 0; color: var(--voice-muted); font-size: 13px; line-height: 1.7; }
.extension-footnote { margin: 19px 0 0; color: var(--voice-muted); font-size: 11px; line-height: 1.65; }
.voice-closing { padding: 80px 0; }
.voice-closing h2 { max-width: 780px; font-size: clamp(40px, 5.2vw, 66px); }
.voice-closing > p:not(.section-kicker) { max-width: 610px; color: var(--voice-muted); font-size: 18px; line-height: 1.65; margin: 25px 0; }
.voice-case .site-footer a { text-decoration: none; }
@media (max-width: 1050px) {
  .voice-hero { gap: 30px; }
  .voice-hero h1 { font-size: 63px; }
  .voice-cover { padding: 23px; }
  .voice-hero-actions { gap: 16px; }
  .voice-section { gap: 50px; }
  .system-node { padding: 15px; }
  .system-node h3 { font-size: 17px; }
  .system-node code { font-size: 10px; }
  .voice-system { padding: 20px; }
  .lab-content { grid-template-columns: .9fr 1.25fr .8fr; }
  .lab-content > div { padding: 23px 17px; }
}
@media (max-width: 820px) {
  .voice-hero { grid-template-columns: 1fr; gap: 40px; padding-top: 55px; }
  .voice-hero h1 { font-size: clamp(56px, 10vw, 76px); }
  .voice-hero h1 br:nth-of-type(2) { display: none; }
  .voice-hero .case-lead { max-width: 650px; }
  .voice-cover { max-width: 580px; width: 100%; min-height: 0; padding: 25px 30px; }
  .voice-phone-mark { width: 120px; margin: 20px auto; }
  .voice-phone-mark svg { width: 100px; }
  .voice-facts { grid-template-columns: 1fr 1fr; }
  .voice-facts div:nth-child(2) { border-right: 0; }
  .voice-facts div:nth-child(3) { padding-left: 0; }
  .voice-facts div:nth-child(-n+2) { border-bottom: 1px solid var(--voice-line); }
  .voice-section { grid-template-columns: 1fr; gap: 28px; padding: 56px 0; }
  .voice-section h2 br { display: none; }
  .system-conversation, .system-actions { grid-template-columns: 1fr; }
  .system-node { padding: 20px; }
  .system-number { margin-bottom: 12px; }
  .system-node h3 { font-size: 21px; }
  .system-node small { margin-top: 10px; }
  .system-edge { min-height: 38px; flex-direction: row; font-size: 0; }
  .system-edge::before { content: "↕"; font-size: 20px; }
  .system-edge small { display: none; }
  .system-down { gap: 15px; line-height: 1.7; }
  .lab-content { grid-template-columns: 1fr 1.3fr; }
  .lab-content .lab-trace { border-right: 0; }
  .lab-content .lab-storage { grid-column: 1 / -1; border-top: 1px solid var(--voice-line); display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
  .lab-storage > code { margin: 0; text-align: right; }
  .lab-storage ul { flex-direction: row; }
  .lab-storage > p { margin: 0; align-self: center; }
  .voice-extension-intro { grid-template-columns: 1fr; gap: 20px; }
  .voice-extension-intro .section-kicker { margin-bottom: 0; }
}
@media (max-width: 560px) {
  .voice-case .case-shell { width: calc(100% - 36px); }
  .voice-case .site-header { height: 74px; }
  .voice-hero { padding: 45px 0; }
  .voice-hero h1 { font-size: clamp(46px, 12vw, 62px); }
  .voice-hero .case-kicker { font-size: 9px; line-height: 1.6; }
  .voice-hero .case-lead { font-size: 16px; }
  .voice-hero-actions { align-items: flex-start; gap: 22px; flex-direction: column; }
  .voice-cover { padding: 21px; }
  .voice-cover-top { font-size: 8px; }
  .cover-conversation > div { grid-template-columns: 42px 1fr; gap: 10px; }
  .cover-conversation span { font-size: 8px; }
  .cover-conversation p { font-size: 16px; }
  .cover-tool code { font-size: 9px; }
  .voice-facts div { padding: 16px; }
  .voice-facts dd { font-size: 11px; }
  .voice-facts dt { font-size: 9px; }
  .voice-call-status { flex-direction: column; align-items: flex-start; gap: 20px; }
  .voice-body-copy p { font-size: 16px; }
  .voice-architecture, .voice-walkthrough { padding: 45px 0; }
  .voice-system { padding: 14px; }
  .system-down { font-size: 8px; }
  .lab-top, .lab-choices, .lab-controls { padding: 15px; }
  .lab-top { font-size: 8px; }
  .lab-reset { font-size: 10px; }
  .lab-choices { gap: 7px; }
  .lab-choices button { padding: 9px 10px; font-size: 10px; }
  .lab-content { grid-template-columns: 1fr; }
  .lab-content > div { padding: 22px 18px; border-right: 0; }
  .lab-content .lab-request { border-bottom: 1px solid var(--voice-line); }
  .lab-request > p { font-size: 18px; margin-bottom: 19px; }
  .lab-stages { grid-template-columns: 1fr 1fr; }
  .lab-stages li { font-size: 9px; }
  .lab-content .lab-storage { gap: 15px; }
  .lab-storage > code { font-size: 9px; }
  .lab-storage ul { gap: 5px; }
  .lab-storage li { padding: 9px 8px; font-size: 12px; }
  .lab-storage > p { font-size: 10px; }
  .lab-next { font-size: 10px; padding: 12px; gap: 10px; }
  .voice-decisions h3 { font-size: 18px; }
  .voice-decisions p { font-size: 14px; }
  .extension-detail { grid-template-columns: 1fr; }
  .extension-detail > div, .extension-detail > div:first-child, .extension-detail > div:last-child { padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--voice-line); }
  .extension-detail > div:last-child { border-bottom: 0; }
  .voice-closing { padding: 55px 0; }
  .voice-closing h2 { font-size: 42px; }
  .voice-closing > p:not(.section-kicker) { font-size: 16px; }
  .voice-case .site-footer { font-size: 10px; gap: 15px; }
}
@media (prefers-reduced-motion: reduce) { .voice-case { scroll-behavior: auto; } html:has(.voice-case) { scroll-behavior: auto; } }