*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; scrollbar-color: var(--cocoa) var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font: 400 1rem/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
::selection { color: var(--ink); background: var(--orange); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
button, input, summary { font: inherit; }
button, summary { cursor: pointer; }
:focus-visible { outline: 3px solid var(--cocoa); outline-offset: 4px; }
h1, h2, h3, p { margin: 0; }
h1 { font: 400 3.5rem/1.05 var(--serif); letter-spacing: -.03em; text-wrap: balance; }
h2 { font-size: 1.4rem; line-height: 1.25; font-weight: 600; letter-spacing: -.02em; }
h3 { font-size: 1.1rem; line-height: 1.3; font-weight: 600; }
p { text-wrap: pretty; }
code, kbd { overflow-wrap: anywhere; font: .9em/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
kbd { padding: .2em .45em; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); white-space: nowrap; }
.skip-link { position: fixed; z-index: 20; top: 1rem; left: 1rem; padding: .75rem 1rem; color: var(--paper); background: var(--ink); transform: translateY(-200%); }
.skip-link:focus { transform: none; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand-logo { width: 123px; height: auto; }
.brand-icon { width: 40px; height: 40px; object-fit: contain; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 12px 20px; border: 1.5px solid var(--ink); border-radius: 8px; color: var(--ink); background: var(--orange); font-size: 1rem; font-weight: 600; line-height: 1.25; text-decoration: none; transition: background-color 180ms ease-out; }
.button:hover:not(:disabled) { background: var(--orange-hover); }
.button-secondary { background: transparent; }
.button-secondary:hover:not(:disabled) { background: var(--surface); }
.button-dark { color: var(--paper); background: var(--ink); }
.button-dark:hover:not(:disabled) { background: var(--cocoa); }
.button:disabled { color: var(--muted); border-color: var(--line); background: var(--surface); cursor: not-allowed; }
.button[aria-busy="true"] { cursor: wait; }
.text-button { display: inline-flex; align-items: center; min-height: 44px; border: 0; padding: 8px 0; color: var(--ink); background: transparent; font: 600 .9rem/1.3 var(--sans); text-decoration: underline; text-underline-offset: .25em; }
.text-button:hover { text-decoration-thickness: 2px; }
.text-button.danger { color: var(--error); }
.lead { max-width: 52ch; margin-top: 18px; color: var(--muted); font-size: 1.08rem; line-height: 1.6; }

/* Shared navigation and reading pages. */
.site-header, .workspace-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: min(1040px, calc(100% - 64px)); margin: 24px auto 0; padding: 10px 16px 10px 20px; border: 1px solid var(--line); border-radius: 9px; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: .9rem; text-decoration: none; }
.site-nav a:hover, .site-nav [aria-current="page"] { text-decoration: underline; }
.content-page { width: min(760px, calc(100% - 64px)); margin: 0 auto; padding: 76px 0 88px; }
.page-heading { padding-bottom: 48px; }
.page-heading h1 { font-size: 4.5rem; }
.prose section { padding: 28px 0; border-top: 1px solid var(--line); }
.prose h2 { margin-bottom: 14px; }
.prose p, .prose li { max-width: 70ch; color: var(--muted); }
.prose p + p { margin-top: 16px; }
.prose a { color: var(--ink); font-weight: 600; }
.prose ol, .prose ul { margin: 0; padding-left: 1.3rem; }
.prose li { padding-left: .25rem; margin-bottom: 12px; }
.page-meta { margin-top: 28px; color: var(--muted); font-size: .875rem; }
.site-footer { padding: 28px max(32px, calc((100% - 1040px) / 2)); color: var(--paper); background: var(--cocoa); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.site-footer .brand-logo { width: 110px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; text-decoration: none; }
.site-footer nav a:hover { text-decoration: underline; }
.site-footer :focus-visible { outline-color: var(--orange); }

/* Sign-in and signup preserve their existing form contracts. */
.auth-page { width: min(1040px, calc(100% - 64px)); min-height: 100vh; margin-inline: auto; padding: 32px 0; }
.auth-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 72px; }
.auth-header > a:last-child { display: inline-flex; align-items: center; min-height: 44px; font-size: .9rem; }
.auth-layout { display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 100px; align-items: center; }
.auth-card .lead { margin-bottom: 28px; font-size: 1rem; }
.auth-card form { display: grid; gap: 20px; }
.auth-card label { display: grid; gap: 8px; font-size: .94rem; font-weight: 600; }
.auth-card input { width: 100%; min-height: 48px; padding: 10px 13px; border: 1px solid var(--muted); border-radius: 8px; color: var(--ink); background: var(--paper); font-size: 1rem; caret-color: var(--cocoa); }
.auth-card input::placeholder { color: var(--muted); }
.auth-card input:user-invalid { border-color: var(--error); }
.auth-card input:disabled { background: var(--surface); }
.auth-google { width: 100%; }
.auth-divider { display: flex; align-items: center; gap: 16px; margin-block: 24px; color: var(--muted); font-size: .875rem; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.auth-message { margin-top: 16px; color: var(--muted); font-size: .9rem; overflow-wrap: anywhere; }
.auth-message:empty { display: none; }
.auth-message.bad { color: var(--error); }
.auth-switch { margin-top: 24px; color: var(--muted); font-size: .94rem; }
.auth-switch a { color: var(--ink); font-weight: 600; }
.field-hint { color: var(--muted); font-size: .8rem; font-weight: 400; }
.auth-aside { align-self: stretch; display: flex; flex-direction: column; justify-content: center; padding: 40px; border-radius: 14px; background: var(--orange); }
.auth-aside .brand-icon { width: 56px; height: 56px; margin-bottom: 64px; }
.auth-aside h2 { font: 400 3.25rem/1.05 var(--serif); letter-spacing: -.03em; }
.auth-aside p { margin-top: 24px; max-width: 30ch; font-size: 1rem; }
.auth-aside .aside-note { margin-top: 36px; padding-top: 20px; border-top: 1px solid #c69a7d; font-size: .9rem; }
.auth-footer { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 48px; color: var(--muted); }
.auth-footer a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; }

/* Account: task navigation stays visible at every breakpoint. */
.workspace-user { display: flex; align-items: center; gap: 20px; min-width: 0; }
.workspace-user > span { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: .875rem; }
.workspace-user .text-button { flex: none; }
.workspace-shell { display: grid; grid-template-columns: 188px minmax(0, 1fr); gap: 48px; width: min(1040px, calc(100% - 64px)); margin: 56px auto 88px; }
.workspace-identity { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 24px; }
.workspace-rail h1 { font: 600 1.25rem/1.3 var(--sans); letter-spacing: -.02em; }
.workspace-tabs { display: grid; gap: 8px; }
.workspace-tab { width: 100%; display: flex; align-items: center; min-height: 48px; padding: 12px 16px; border: 1px solid transparent; border-radius: 8px; color: var(--muted); background: transparent; font-weight: 600; text-align: left; }
.workspace-tab:hover { background: var(--surface); }
.workspace-tab.is-active { color: var(--ink); background: var(--orange); border-color: var(--orange); }
.workspace-footer { display: flex; flex-wrap: wrap; gap: 24px; width: min(1040px, calc(100% - 64px)); margin: 0 auto; padding-block: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
.workspace-footer a { display: inline-flex; align-items: center; min-height: 44px; }
.workspace-main { min-width: 0; }
.workspace-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.workspace-heading h2 { margin-bottom: 14px; font: 400 3.25rem/1.05 var(--serif); letter-spacing: -.03em; text-wrap: balance; }
.workspace-lead { max-width: 48ch; color: var(--muted); }
.plan-chip, .panel-state { display: inline-flex; align-items: center; min-height: 30px; flex: none; padding: 4px 10px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); font-size: .8rem; font-weight: 600; }
.plan-chip { background: var(--surface); white-space: nowrap; }
.panel-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding-top: 28px; border-top: 1px solid var(--line); }
.panel-heading h3 { margin-bottom: 10px; }
.panel-heading p { max-width: 48ch; color: var(--muted); font-size: .94rem; }
.state-ready { color: var(--success); }
.state-warm { color: var(--muted); }
.setup-grid { display: grid; grid-template-columns: 1fr; gap: 32px; margin-top: 32px; }
.setup-steps { display: grid; gap: 28px; }
.setup-step { display: grid; grid-template-columns: 32px minmax(0,1fr); gap: 16px; }
.setup-step > span { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--ink); border-radius: 50%; font-size: .875rem; }
.setup-step strong { display: block; margin: 3px 0 8px; font-weight: 600; }
.setup-step p { color: var(--muted); font-size: .94rem; margin-bottom: 16px; }
.device-card { padding: 20px 0; border-block: 1px solid var(--line); }
.device-state { display: flex; align-items: flex-start; gap: 12px; }
.status-dot { width: 8px; height: 8px; margin-top: 8px; border-radius: 50%; flex: none; background: var(--muted); }
.status-dot.is-connected { background: var(--success); }
.device-state strong { display: block; font-weight: 600; }
.device-state p { margin-top: 5px; color: var(--muted); font-size: .9rem; }
.device-card .text-button { margin-top: 12px; }
.install-inline { padding-top: 32px; }
.install-inline h3 { margin-bottom: 18px; }
.install-inline ol { display: grid; gap: 14px; margin: 0; padding-left: 20px; color: var(--muted); font-size: .94rem; }
.install-inline li { padding-left: 6px; }
.install-inline strong { color: var(--ink); font-weight: 600; }
.usage-hero { padding-block: 32px; }
.usage-number { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.usage-number strong { font: 500 3rem/1.15 var(--sans); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.usage-number span { color: var(--muted); font-size: .94rem; }
.usage-meter { height: 8px; border-radius: 4px; background: var(--surface); overflow: hidden; }
.usage-meter span { display: block; width: 0; height: 100%; background: var(--cocoa); }
.usage-hero > p { margin-top: 16px; color: var(--muted); font-size: .9rem; }
.usage-grid { display: grid; gap: 32px; border-top: 1px solid var(--line); padding-top: 28px; }
.empty-activity p { margin-top: 12px; color: var(--muted); font-size: .94rem; }
.upgrade-callout { padding: 28px; border-radius: 14px; background: var(--orange); }
.upgrade-callout p { margin-top: 12px; }
.upgrade-callout .button { margin-top: 24px; }
.billing-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; padding-block: 28px; }
.billing-card { display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--line); border-radius: 14px; }
.billing-card-pro { border-color: var(--orange); background: var(--orange); }
.plan-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 20px; }
.plan-label { font-weight: 600; }
.plan-note { font-size: .8rem; color: var(--muted); }
.billing-price { font: 400 3.5rem/1.1 var(--serif); letter-spacing: -.03em; font-variant-numeric: lining-nums tabular-nums; }
.billing-price span { display: block; margin-top: 4px; font: 400 .9rem/1.5 var(--sans); letter-spacing: normal; }
.billing-card ul { padding-left: 18px; margin: 24px 0 28px; font-size: .9rem; }
.billing-card li + li { margin-top: 12px; }
.billing-card .button { margin-top: auto; width: 100%; padding-inline: 12px; }
.billing-note { border-top: 1px solid var(--line); padding-top: 24px; color: var(--muted); font-size: .94rem; }
.billing-note details { margin-top: 16px; }
.billing-note summary { min-height: 44px; padding-block: 10px; color: var(--ink); font-weight: 600; }
.billing-note details p { margin-top: 8px; }

/* Compact recovery pages. */
.error-page { min-height: 100vh; display: flex; flex-direction: column; width: min(1040px, calc(100% - 64px)); margin-inline: auto; }
.error-header { padding-block: 32px; }
.error-content { width: min(560px, 100%); margin: auto; padding: 56px 0 72px; }
.error-code { margin-bottom: 24px; color: var(--cocoa); font: 400 5rem/1 var(--serif); letter-spacing: -.03em; }
.error-content h1 { font-size: 2.75rem; }
.error-content .lead { max-width: 42ch; }
.error-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 32px; }
.error-actions form { margin: 0; }
.error-footer { display: flex; flex-wrap: wrap; gap: 24px; padding-block: 24px; border-top: 1px solid var(--line); color: var(--muted); }
.error-footer a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; }

@media (max-width: 900px) {
  .auth-layout { gap: 48px; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); }
  .auth-aside { padding: 28px; }
  .auth-aside h2 { font-size: 2.75rem; }
  .workspace-shell { grid-template-columns: 1fr; gap: 24px; margin-block: 24px 40px; }
  .workspace-rail { border-bottom: 1px solid var(--line); padding-bottom: 16px; }
  .workspace-identity { justify-content: space-between; margin-bottom: 12px; }
  .workspace-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .workspace-tab { justify-content: center; }
  .workspace-heading { margin-bottom: 20px; }
  .workspace-heading h2 { margin-bottom: 10px; }
  .workspace-heading .auth-message { margin-top: 10px; font-size: .875rem; }
  .workspace-lead { font-size: .94rem; }
  .billing-grid { padding-top: 0; }
}
@media (max-width: 760px) {
  .site-header, .workspace-header { width: calc(100% - 40px); margin-top: 16px; padding: 10px 14px; }
  .brand-logo { width: 105px; }
  .site-header { flex-wrap: wrap; gap: 8px 24px; }
  .site-nav { flex-wrap: wrap; gap: 0 20px; }
  .auth-page, .workspace-shell, .workspace-footer, .error-page { width: calc(100% - 40px); }
  .auth-header { margin-bottom: 40px; }
  .auth-layout { grid-template-columns: 1fr; gap: 40px; }
  .auth-card { max-width: 480px; width: 100%; margin-inline: auto; }
  .auth-card h1 { font-size: 3rem; }
  .auth-aside { max-width: 480px; width: 100%; margin-inline: auto; }
  .auth-aside .brand-icon { margin-bottom: 28px; width: 40px; height: 40px; }
  .auth-aside h2 { font-size: 2.5rem; }
  .auth-footer { justify-content: center; margin-top: 32px; }
  .content-page { width: calc(100% - 40px); padding-block: 48px 64px; }
  .page-heading h1 { font-size: 3.5rem; }
  .page-heading { padding-bottom: 32px; }
  .site-footer { padding: 24px 20px; }
  .workspace-user > span { display: none; }
  .workspace-heading, .panel-heading { flex-direction: column; gap: 16px; }
  .workspace-heading h2 { font-size: 2.5rem; }
  .error-content { padding-block: 36px 56px; }
}
@media (max-width: 520px) {
  .billing-grid { grid-template-columns: 1fr; }
  .workspace-tab { padding-inline: 10px; }
  .usage-number strong { font-size: 2.5rem; }
  .upgrade-callout { padding: 24px; }
  .site-footer { flex-direction: column; align-items: flex-start; }
  .site-footer nav { gap: 8px 20px; }
  .error-content h1 { font-size: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}