:root {
  color-scheme: light;
  --setup-bg: #f4eee6;
  --setup-bg-strong: #ebe2d5;
  --setup-surface: rgba(255, 252, 247, 0.84);
  --setup-surface-strong: #fffaf4;
  --setup-border: rgba(72, 58, 37, 0.14);
  --setup-border-strong: rgba(72, 58, 37, 0.24);
  --setup-text: #1d1a16;
  --setup-text-muted: #685f56;
  --setup-accent: #174d47;
  --setup-accent-strong: #123d38;
  --setup-accent-soft: rgba(23, 77, 71, 0.1);
  --setup-warm: #f3c98b;
  --setup-shadow: 0 24px 60px rgba(42, 28, 10, 0.12);
  --setup-radius-xl: 30px;
  --setup-radius-lg: 22px;
  --setup-radius-md: 18px;
  --setup-content-width: 1180px;
  --setup-font-heading: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --setup-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* {
  box-sizing: border-box;
}

.hidden {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.84), transparent 32%),
    linear-gradient(180deg, var(--setup-bg), #f8f4ee 42%, #f5efe6 100%);
  color: var(--setup-text);
  font-family: var(--setup-font-body);
  line-height: 1.7;
}

a,
button {
  font: inherit;
}

.setup-aura {
  position: fixed;
  inset: auto;
  border-radius: 999px;
  filter: blur(16px);
  pointer-events: none;
  z-index: 0;
}

.setup-aura-one {
  top: 72px;
  left: -48px;
  width: 320px;
  height: 320px;
  background: rgba(243, 201, 139, 0.34);
}

.setup-aura-two {
  right: 4%;
  top: 140px;
  width: 280px;
  height: 280px;
  background: rgba(23, 77, 71, 0.12);
}

.setup-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--setup-content-width));
  margin: 0 auto;
  padding: 22px 0 52px;
}

.setup-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  border: 1px solid var(--setup-border);
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 24px rgba(42, 28, 10, 0.06);
}

.setup-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.setup-brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--setup-accent), #1d6f65);
  color: #f8f5ef;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 16px 28px rgba(23, 77, 71, 0.2);
}

.setup-brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.setup-brand-copy strong {
  font-family: var(--setup-font-heading);
  font-size: 18px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.setup-brand-copy span,
.setup-topbar-note {
  color: var(--setup-text-muted);
  font-size: 13px;
}

.setup-topbar-note {
  margin: 0;
  max-width: 36ch;
  text-align: right;
}

.setup-main {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 28px;
}

.setup-hero,
.subscription-slot,
.setup-step-card,
.setup-faq-item,
.setup-guardrail {
  box-shadow: var(--setup-shadow);
}

.setup-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: 24px;
}

.setup-hero-copy,
.setup-hero-panel,
.subscription-slot,
.setup-faq-list {
  padding: 30px;
  border-radius: var(--setup-radius-xl);
  border: 1px solid var(--setup-border);
  background: var(--setup-surface);
  backdrop-filter: blur(16px);
}

.setup-hero-copy {
  background:
    radial-gradient(circle at top right, rgba(243, 201, 139, 0.3), transparent 34%),
    linear-gradient(180deg, rgba(255, 252, 247, 0.92), rgba(255, 248, 241, 0.82));
}

.setup-kicker,
.setup-section-kicker,
.setup-step-index,
.subscription-label,
.setup-panel-chip,
.setup-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  min-height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--setup-border);
  color: var(--setup-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.setup-hero-copy h1,
.setup-section-heading h2 {
  margin: 18px 0 0;
  font-family: var(--setup-font-heading);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.setup-hero-copy h1 {
  max-width: 11ch;
  font-size: clamp(40px, 5vw, 68px);
}

.setup-hero-lead,
.setup-section-heading p,
.setup-step-card p,
.setup-status-card p,
.subscription-note,
.setup-faq-item p {
  margin: 0;
  color: var(--setup-text-muted);
}

.setup-inline-code {
  padding: 0.14em 0.48em;
  border-radius: 999px;
  background: rgba(23, 77, 71, 0.08);
  color: var(--setup-accent);
  font-size: 0.94em;
  font-family: 'Space Grotesk', 'Noto Sans SC', sans-serif;
}

.setup-hero-lead {
  margin-top: 18px;
  max-width: 60ch;
  font-size: 17px;
}

.setup-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.setup-btn {
  min-height: 54px;
  padding: 0 20px;
  border-radius: 18px;
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
  touch-action: manipulation;
}

.setup-btn:hover {
  transform: translateY(-1px);
}

.setup-btn[aria-disabled='true'] {
  pointer-events: none;
}

.setup-btn-primary {
  background: linear-gradient(135deg, var(--setup-accent), #20685f);
  color: #faf6ee;
  box-shadow: 0 18px 28px rgba(23, 77, 71, 0.22);
}

.setup-btn-primary:hover {
  background: linear-gradient(135deg, var(--setup-accent-strong), #19554f);
}

.setup-btn-secondary {
  border-color: var(--setup-border);
  background: rgba(255, 255, 255, 0.62);
  color: var(--setup-text);
}

.setup-btn-secondary:hover {
  border-color: var(--setup-border-strong);
  background: rgba(255, 255, 255, 0.9);
}

.setup-btn-block {
  width: 100%;
}

.setup-btn.is-disabled,
.setup-btn:disabled {
  background: rgba(233, 227, 216, 0.82);
  color: var(--setup-text-muted);
  border-color: rgba(72, 58, 37, 0.1);
  cursor: not-allowed;
  box-shadow: none;
}

.setup-btn.is-disabled:hover,
.setup-btn:disabled:hover {
  transform: none;
}

.setup-guardrails {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.setup-guardrail {
  padding: 18px 18px 16px;
  border-radius: var(--setup-radius-lg);
  border: 1px solid var(--setup-border);
  background: rgba(255, 255, 255, 0.54);
}

.setup-guardrail strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.setup-guardrail span {
  color: var(--setup-text-muted);
  font-size: 14px;
}

.setup-hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  background:
    linear-gradient(180deg, rgba(23, 77, 71, 0.06), rgba(255, 255, 255, 0.82)),
    var(--setup-surface);
}

.setup-panel-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.setup-panel-head strong {
  font-family: var(--setup-font-heading);
  font-size: 28px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.setup-summary-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.setup-summary-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border-radius: var(--setup-radius-lg);
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(23, 77, 71, 0.08);
}

.setup-summary-step {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--setup-accent-soft);
  color: var(--setup-accent);
  font-family: var(--setup-font-heading);
  font-size: 18px;
  font-weight: 700;
}

.setup-summary-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}

.setup-summary-list p {
  margin: 0;
  color: var(--setup-text-muted);
  font-size: 14px;
}

.setup-status-card {
  padding: 18px;
  border-radius: var(--setup-radius-lg);
  border: 1px solid rgba(23, 77, 71, 0.12);
  background: rgba(23, 77, 71, 0.08);
}

.setup-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.setup-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.setup-section-heading h2 {
  font-size: clamp(30px, 4vw, 42px);
}

.setup-section-heading p {
  max-width: 34ch;
  text-align: right;
  font-size: 15px;
}

.setup-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.setup-step-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px;
  border-radius: var(--setup-radius-xl);
  border: 1px solid var(--setup-border);
  background: rgba(255, 252, 247, 0.78);
}

.setup-step-card h3 {
  margin: 0;
  font-family: var(--setup-font-heading);
  font-size: 28px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.setup-step-note {
  padding-top: 2px;
  font-size: 14px;
}

.subscription-slot {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.95fr) minmax(0, 1fr);
  gap: 18px;
}

.subscription-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  border-radius: var(--setup-radius-lg);
  border: 1px solid var(--setup-border);
  background: rgba(255, 255, 255, 0.62);
}

.subscription-gate-card {
  justify-content: flex-start;
}

.subscription-gate-copy {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.subscription-gate-copy strong {
  font-size: 18px;
}

.subscription-gate-copy p {
  margin: 0;
  color: var(--setup-text-muted);
  font-size: 14px;
}

.subscription-unlock-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.subscription-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.subscription-field span {
  font-size: 13px;
  font-weight: 700;
  color: var(--setup-text);
}

.subscription-field input {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid var(--setup-border);
  background: rgba(255, 255, 255, 0.82);
  color: var(--setup-text);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.subscription-field input:focus {
  border-color: var(--setup-border-strong);
  box-shadow: 0 0 0 4px rgba(23, 77, 71, 0.12);
  background: #fffdf9;
}

.subscription-inline-status {
  margin: 0;
  color: var(--setup-text-muted);
  font-size: 13px;
}

.subscription-inline-status.is-success {
  color: var(--setup-accent);
}

.subscription-inline-status.is-error {
  color: #ab4432;
}

.subscription-inline-status.is-warning {
  color: #936224;
}

.subscription-reveal-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  grid-column: span 2;
}

.subscription-url-slot {
  min-height: 112px;
  padding: 18px;
  border-radius: var(--setup-radius-md);
  border: 1px dashed rgba(23, 77, 71, 0.24);
  background: linear-gradient(135deg, rgba(23, 77, 71, 0.06), rgba(255, 255, 255, 0.78));
  color: var(--setup-text-muted);
  font-size: 15px;
  display: flex;
  align-items: center;
  word-break: break-all;
}

.subscription-url-slot.is-ready {
  color: var(--setup-text);
}

.subscription-qr-slot {
  min-height: 244px;
  border-radius: var(--setup-radius-md);
  border: 1px dashed rgba(23, 77, 71, 0.24);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 242, 233, 0.82));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 20px;
}

.subscription-qr-slot strong {
  font-size: 17px;
}

.subscription-qr-slot span {
  color: var(--setup-text-muted);
  font-size: 14px;
}

.subscription-qr-image {
  width: min(100%, 220px);
  height: auto;
  border-radius: 24px;
  border: 1px solid rgba(23, 77, 71, 0.12);
  box-shadow: 0 12px 28px rgba(23, 77, 71, 0.12);
}

.subscription-qr-grid {
  width: 130px;
  height: 130px;
  border-radius: 20px;
  border: 1px solid rgba(23, 77, 71, 0.14);
  background:
    linear-gradient(90deg, rgba(23, 77, 71, 0.16) 10%, transparent 10%, transparent 20%, rgba(23, 77, 71, 0.16) 20%, rgba(23, 77, 71, 0.16) 30%, transparent 30%, transparent 40%, rgba(23, 77, 71, 0.16) 40%, rgba(23, 77, 71, 0.16) 50%, transparent 50%, transparent 60%, rgba(23, 77, 71, 0.16) 60%, rgba(23, 77, 71, 0.16) 70%, transparent 70%, transparent 80%, rgba(23, 77, 71, 0.16) 80%, rgba(23, 77, 71, 0.16) 90%, transparent 90%),
    linear-gradient(rgba(23, 77, 71, 0.16) 10%, transparent 10%, transparent 20%, rgba(23, 77, 71, 0.16) 20%, rgba(23, 77, 71, 0.16) 30%, transparent 30%, transparent 40%, rgba(23, 77, 71, 0.16) 40%, rgba(23, 77, 71, 0.16) 50%, transparent 50%, transparent 60%, rgba(23, 77, 71, 0.16) 60%, rgba(23, 77, 71, 0.16) 70%, transparent 70%, transparent 80%, rgba(23, 77, 71, 0.16) 80%, rgba(23, 77, 71, 0.16) 90%, transparent 90%);
  background-size: 100% 100%;
}

.subscription-micro-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding-left: 22px;
  color: var(--setup-text);
}

.subscription-micro-steps li {
  padding-left: 2px;
}

.setup-step-note.is-success {
  color: var(--setup-accent);
}

.setup-step-note.is-warning {
  color: #936224;
}

.setup-step-note.is-error {
  color: #ab4432;
}

.setup-faq-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.setup-faq-item {
  border-radius: var(--setup-radius-lg);
  border: 1px solid var(--setup-border);
  background: rgba(255, 252, 247, 0.82);
  overflow: hidden;
}

.setup-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px 16px;
  font-weight: 700;
  font-size: 16px;
  position: relative;
}

.setup-faq-item summary::-webkit-details-marker {
  display: none;
}

.setup-faq-item summary::after {
  content: '+';
  position: absolute;
  right: 24px;
  top: 20px;
  color: var(--setup-accent);
  font-family: var(--setup-font-heading);
  font-size: 24px;
  line-height: 1;
}

.setup-faq-item[open] summary::after {
  content: '−';
}

.setup-faq-item p {
  padding: 0 24px 24px;
  font-size: 14px;
}

.gemini-helper-modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(18, 14, 9, 0.42);
  backdrop-filter: blur(8px);
}

.gemini-helper-dialog {
  width: min(100%, 480px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  border-radius: 28px;
  border: 1px solid var(--setup-border);
  background: var(--setup-surface-strong);
  box-shadow: var(--setup-shadow);
}

.gemini-helper-dialog strong {
  font-family: var(--setup-font-heading);
  font-size: 28px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.gemini-helper-dialog p {
  margin: 0;
  color: var(--setup-text-muted);
}

.gemini-helper-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 1100px) {
  .setup-hero {
    grid-template-columns: 1fr;
  }

  .setup-steps-grid,
  .setup-faq-list,
  .subscription-slot {
    grid-template-columns: 1fr;
  }

  .subscription-reveal-panel {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .setup-section-heading {
    align-items: start;
    flex-direction: column;
  }

  .setup-section-heading p {
    max-width: 60ch;
    text-align: left;
  }
}

@media (max-width: 820px) {
  .setup-shell {
    width: min(calc(100% - 20px), var(--setup-content-width));
    padding-top: 14px;
  }

  .setup-topbar {
    flex-direction: column;
    align-items: flex-start;
    border-radius: 30px;
  }

  .setup-topbar-note {
    max-width: none;
    text-align: left;
  }

  .setup-hero-copy,
  .setup-hero-panel,
  .setup-step-card,
  .setup-faq-list,
  .subscription-slot {
    padding: 22px;
  }

  .setup-guardrails {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    background:
      radial-gradient(circle at top left, rgba(255, 255, 255, 0.86), transparent 38%),
      linear-gradient(180deg, var(--setup-bg), #f7f2ea 44%, #f4ede4 100%);
  }

  .setup-main {
    gap: 22px;
  }

  .setup-hero-copy h1 {
    max-width: none;
    font-size: clamp(34px, 11vw, 48px);
  }

  .setup-btn,
  .setup-btn-block {
    width: 100%;
  }

  .setup-hero-actions {
    flex-direction: column;
  }

  .setup-step-card h3,
  .setup-panel-head strong {
    font-size: 24px;
  }

  .subscription-qr-slot {
    min-height: 208px;
  }

  .subscription-qr-grid {
    width: 118px;
    height: 118px;
  }

  .gemini-helper-actions {
    flex-direction: column;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --setup-bg: #161411;
    --setup-bg-strong: #1d1914;
    --setup-surface: rgba(34, 29, 23, 0.82);
    --setup-surface-strong: rgba(37, 31, 24, 0.96);
    --setup-border: rgba(243, 230, 205, 0.12);
    --setup-border-strong: rgba(243, 230, 205, 0.24);
    --setup-text: #f6f0e6;
    --setup-text-muted: #c7beb2;
    --setup-accent: #7ad2c3;
    --setup-accent-strong: #67baa9;
    --setup-accent-soft: rgba(122, 210, 195, 0.12);
    --setup-warm: #f3c98b;
    --setup-shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
  }

  body {
    background:
      radial-gradient(circle at top left, rgba(52, 42, 30, 0.74), transparent 32%),
      linear-gradient(180deg, #120f0c, #15120e 42%, #17130f 100%);
  }

  .setup-topbar,
  .setup-hero-copy,
  .setup-hero-panel,
  .setup-step-card,
  .subscription-slot,
  .setup-faq-item,
  .setup-guardrail {
    background: var(--setup-surface);
  }

  .setup-kicker,
  .setup-section-kicker,
  .setup-step-index,
  .subscription-label,
  .setup-panel-chip,
  .setup-status-badge {
    background: rgba(255, 255, 255, 0.04);
  }

  .setup-btn-secondary {
    background: rgba(255, 255, 255, 0.04);
  }

  .setup-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .setup-inline-code {
    background: rgba(122, 210, 195, 0.1);
  }

  .setup-status-card {
    background: rgba(122, 210, 195, 0.08);
  }

  .setup-summary-list li,
  .subscription-card,
  .subscription-qr-slot,
  .subscription-url-slot,
  .setup-guardrail {
    background: rgba(255, 255, 255, 0.04);
  }

  .subscription-field input {
    background: rgba(255, 255, 255, 0.04);
  }

  .subscription-field input:focus {
    background: rgba(255, 255, 255, 0.08);
  }
}