/* ============================================================
   Auth + legal public pages — aligned with landing W3.
   Pure white / soft grey, black primary actions, real product logo.
   Load AFTER /css/styles.css. Dark/light tokens are identical so
   marketing stays light even if a stored theme prefers dark.
   ============================================================ */

:root,
html[data-theme="dark"],
html[data-theme="light"] {
  color-scheme: light;
  --mkt-bg: #ffffff;
  --mkt-bg-raise: #f7f7f8;
  --mkt-bg-card: #ffffff;
  --mkt-line: #e5e5e5;
  --mkt-text: #0d0d0d;
  --mkt-text-dim: #5d5d5d;
  --mkt-accent: #0d0d0d;
  --mkt-accent-hover: #2a2a2a;
  --mkt-ink-on-accent: #ffffff;
  --mkt-green: #1f9d63;
  --mkt-danger: #d64545;
  --mkt-elev: #f0f0f1;
  --mkt-border-strong: #d8d8d8;
  --mkt-code-bg: #f7f7f8;
  --mkt-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --mkt-panel: #ffffff;
  --mkt-chip: #f7f7f8;
  --mkt-nav-bg: rgba(255, 255, 255, 0.86);
  --mkt-nav-line: #e5e5e5;
  --mkt-nav-hover: #f7f7f8;
  /* Legacy aliases used by older rules */
  --mkt-amber: var(--mkt-accent);
  --mkt-amber-deep: var(--mkt-accent);
  --mkt-btn-hover: var(--mkt-accent-hover);
  --mkt-ink-on-amber: var(--mkt-ink-on-accent);
}

/* Shared brand mark */
.auth-body .landing-brand,
.legal-body .landing-brand,
.oauth-complete-body .landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--mkt-text);
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.auth-body .landing-brand:hover,
.legal-body .landing-brand:hover,
.oauth-complete-body .landing-brand:hover {
  text-decoration: none;
  color: var(--mkt-text);
}

.auth-body .brand-dot,
.legal-body .brand-dot,
.oauth-complete-body .brand-dot {
  display: none;
}

.auth-body .brand-logo,
.legal-body .brand-logo,
.oauth-complete-body .brand-logo {
  width: 22px !important;
  height: 22px !important;
  max-width: 22px !important;
  max-height: 22px !important;
  border-radius: 6px;
  object-fit: cover;
  flex: none;
}

/* ---------- Auth shell ---------- */

.auth-body {
  color-scheme: light;
  --bg: var(--mkt-bg);
  --bg-soft: var(--mkt-bg-raise);
  --bg-card: var(--mkt-bg-card);
  --bg-elev: var(--mkt-elev);
  --border: var(--mkt-line);
  --border-strong: var(--mkt-border-strong);
  --text: var(--mkt-text);
  --text-muted: var(--mkt-text-dim);
  --accent: var(--mkt-accent);
  --accent-strong: var(--mkt-accent-hover);
  --accent-soft: rgba(13, 13, 13, 0.06);
  --success: var(--mkt-green);
  --danger: var(--mkt-danger);
  --code-bg: var(--mkt-code-bg);
  --shadow: var(--mkt-shadow);
  --auth-ink: var(--mkt-text);
  --auth-muted: var(--mkt-text-dim);
  --auth-line: var(--mkt-line);
  --auth-panel: var(--mkt-panel);
  background: var(--mkt-bg);
  color: var(--mkt-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.auth-body .auth-modern::before,
.auth-body .auth-modern::after {
  display: none;
}

.auth-body .auth-screen.split {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(360px, 1.05fr) minmax(360px, 0.95fr);
  background: transparent;
}

.auth-body .auth-brand-panel,
.auth-body .auth-modern .auth-brand-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  min-height: 100vh;
  padding: 28px clamp(26px, 5vw, 58px);
  border-right: 1px solid var(--mkt-line);
  background: var(--mkt-bg-raise);
}

.auth-body .auth-brand-copy,
.auth-body .auth-modern .auth-brand-copy {
  max-width: 620px;
  margin: 0;
}

.auth-body .auth-brand-copy h2,
.auth-body .auth-modern .auth-brand-copy h2 {
  max-width: 640px;
  margin: 0 0 14px;
  font-size: clamp(34px, 4.6vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 650;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: var(--mkt-text);
}

.auth-body .auth-brand-copy p,
.auth-body .auth-modern .auth-brand-copy p {
  max-width: 520px;
  margin: 0;
  color: var(--mkt-text-dim);
  font-size: 16px;
  line-height: 1.65;
}

.auth-body .auth-brand-bullets,
.auth-body .auth-modern .auth-brand-bullets {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  color: var(--mkt-text-dim);
}

.auth-body .auth-brand-bullets li,
.auth-body .auth-modern .auth-brand-bullets li {
  position: relative;
  width: fit-content;
  max-width: 100%;
  padding: 9px 14px 9px 34px;
  border: 1px solid var(--mkt-line);
  border-radius: 999px;
  background: #fff;
  color: var(--mkt-text-dim);
}

.auth-body .auth-brand-bullets li::before,
.auth-body .auth-modern .auth-brand-bullets li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mkt-accent);
  box-shadow: none;
}

.auth-visual-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
}

.auth-device-card,
.auth-mini-card {
  border: 1px solid var(--mkt-line);
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.auth-device-card {
  border-radius: 18px;
  padding: 18px;
}

.auth-device-card .row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--mkt-text-dim);
  font-size: 13px;
}

.auth-device-card .dot.online {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mkt-green);
  box-shadow: 0 0 0 3px rgba(31, 157, 99, 0.14);
}

.auth-device-card .badge.success {
  border: 1px solid rgba(31, 157, 99, 0.28);
  border-radius: 999px;
  padding: 2px 8px;
  color: var(--mkt-green);
  background: rgba(31, 157, 99, 0.08);
  font-size: 11px;
  font-weight: 700;
}

.auth-device-title {
  margin-top: 18px;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--mkt-text);
}

.auth-device-subtitle {
  margin-top: 6px;
  color: var(--mkt-text-dim);
  line-height: 1.55;
  font-size: 13.5px;
}

.auth-device-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.auth-mini-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-radius: 16px;
  padding: 14px;
}

.auth-mini-card strong {
  color: var(--mkt-text);
  font-size: 14px;
}

.auth-mini-card span:last-child {
  color: var(--mkt-text-dim);
  font-size: 12px;
}

.auth-mini-icon {
  width: fit-content;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--mkt-bg-raise);
  color: var(--mkt-text-dim);
  border: 1px solid var(--mkt-line);
  font-size: 11px;
  font-weight: 650;
}

.auth-body .auth-main,
.auth-body .auth-modern .auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px clamp(24px, 5vw, 80px);
  background: #fff;
}

.auth-body .auth-card,
.auth-body .auth-modern .auth-card,
.auth-body .card.auth-card {
  width: 100%;
  max-width: 460px;
  padding: 28px;
  border: 1px solid var(--mkt-line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--mkt-shadow);
  backdrop-filter: none;
}

.auth-body .auth-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.auth-body .auth-card-head-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.auth-body .auth-card h1,
.auth-body .auth-modern .auth-card h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: -0.03em;
  font-weight: 650;
  color: var(--mkt-text);
}

.auth-body .auth-card p.lead,
.auth-body .auth-modern .auth-card p.lead {
  margin: 0 0 18px;
  color: var(--mkt-text-dim);
}

.auth-body .language-switcher--dropdown .language-switcher-trigger {
  border: 1px solid var(--mkt-line);
  border-radius: 999px;
  background: #fff;
  color: var(--mkt-text-dim);
}

.auth-body .language-switcher-menu {
  background: #fff;
  border: 1px solid var(--mkt-line);
  box-shadow: var(--mkt-shadow);
}

.auth-body .language-switcher-option,
.auth-body .language-option {
  color: var(--mkt-text);
}

.auth-body .language-switcher-option.is-selected,
.auth-body .language-switcher-option[aria-selected="true"],
.auth-body .language-option[aria-pressed="true"] {
  background: var(--mkt-accent);
  color: var(--mkt-ink-on-accent);
}

.auth-body .oauth-title,
.auth-body .auth-modern .oauth-title {
  margin-bottom: 8px;
  color: var(--mkt-text-dim);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.auth-body .oauth-button,
.auth-body .auth-modern .oauth-button {
  min-height: 48px;
  justify-content: flex-start;
  gap: 12px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--mkt-line);
  background: #fff;
  color: var(--mkt-text);
  box-shadow: none;
}

.auth-body .oauth-button:hover,
.auth-body .auth-modern .oauth-button:hover {
  transform: none;
  background: var(--mkt-bg-raise);
  border-color: var(--mkt-border-strong);
  box-shadow: none;
}

.auth-body .oauth-provider-mark {
  border: 1px solid var(--mkt-line);
  background: #fff;
  color: var(--mkt-text);
}

.auth-body .oauth-divider {
  color: var(--mkt-text-dim);
}

.auth-body .oauth-divider::before,
.auth-body .oauth-divider::after {
  background: var(--mkt-line);
}

.auth-body .segmented,
.auth-body .auth-modern .segmented {
  margin-bottom: 16px;
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--mkt-line);
  background: var(--mkt-bg-raise);
}

.auth-body .segmented button,
.auth-body .auth-modern .segmented button {
  min-height: 36px;
  border-radius: 9px;
  font-weight: 650;
  color: var(--mkt-text-dim);
  background: transparent;
}

.auth-body .segmented button.active,
.auth-body .auth-modern .segmented button.active {
  background: var(--mkt-accent);
  color: var(--mkt-ink-on-accent);
  box-shadow: none;
}

.auth-body .field label,
.auth-body .auth-modern .field label {
  color: var(--mkt-text-dim);
  font-weight: 650;
}

.auth-body input,
.auth-body textarea,
.auth-body select,
.auth-body .auth-modern input {
  min-height: 48px;
  border-radius: 12px;
  border: 1px solid var(--mkt-line);
  background: #fff;
  color: var(--mkt-text);
  box-shadow: none;
}

.auth-body input:focus,
.auth-body textarea:focus,
.auth-body select:focus,
.auth-body .auth-modern input:focus {
  outline: none;
  border-color: #0d0d0d;
  box-shadow: 0 0 0 3px rgba(13, 13, 13, 0.08);
}

.auth-body .password-toggle {
  color: var(--mkt-text-dim);
}

.auth-body button.primary,
.auth-body .auth-modern button.primary {
  min-height: 50px;
  margin-top: 2px;
  border: 0;
  border-radius: 999px;
  background: var(--mkt-accent);
  color: var(--mkt-ink-on-accent);
  box-shadow: none;
  font-weight: 650;
}

.auth-body button.primary:hover:not(:disabled),
.auth-body .auth-modern button.primary:hover:not(:disabled) {
  background: var(--mkt-accent-hover);
  transform: none;
  box-shadow: none;
}

.auth-body .auth-forgot-link,
.auth-body .auth-footnote,
.auth-body .auth-modern .auth-footnote,
.auth-body .muted {
  color: var(--mkt-text-dim);
}

.auth-body a.muted:hover,
.auth-body .auth-forgot-link:hover {
  color: var(--mkt-text);
}

.auth-body .notice-banner {
  border: 1px solid rgba(31, 157, 99, 0.28);
  background: rgba(31, 157, 99, 0.08);
  color: var(--mkt-green);
}

.auth-body .error-banner {
  border: 1px solid rgba(214, 69, 69, 0.28);
  background: rgba(214, 69, 69, 0.08);
  color: var(--mkt-danger);
}

.auth-body .captcha-panel {
  border-color: var(--mkt-line);
  background: var(--mkt-bg-raise);
}

@media (max-width: 880px) {
  .auth-body .auth-screen.split {
    grid-template-columns: 1fr;
  }

  .auth-body .auth-brand-panel,
  .auth-body .auth-modern .auth-brand-panel {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--mkt-line);
    padding: 22px;
  }

  .auth-visual-stack {
    display: none;
  }

  .auth-body .auth-main,
  .auth-body .auth-modern .auth-main {
    padding: 16px;
  }

  .auth-body .auth-card,
  .auth-body .auth-modern .auth-card {
    max-width: none;
    padding: 22px;
    border-radius: 18px;
  }
}

/* ---------- OAuth complete ---------- */

.oauth-complete-body,
.oauth-complete-body .oauth-complete-screen {
  color-scheme: light;
  background: var(--mkt-bg-raise);
  color: var(--mkt-text);
}

.oauth-complete-body .oauth-complete-card {
  border: 1px solid var(--mkt-line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--mkt-shadow);
  color: var(--mkt-text);
}

.oauth-complete-body .oauth-soft-ribbon {
  background: rgba(13, 13, 13, 0.06);
}

.oauth-complete-body .oauth-paper {
  border-color: var(--mkt-line);
  background: #fff;
}

.oauth-complete-body .oauth-complete-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ---------- Legal pages ---------- */

.legal-body {
  color-scheme: light;
  min-height: 100vh;
  background: var(--mkt-bg);
  color: var(--mkt-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.legal-body .legal-nav,
.legal-body .landing-nav.legal-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 0 clamp(20px, 5vw, 56px);
  height: 60px;
  background: var(--mkt-nav-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--mkt-nav-line);
  color: var(--mkt-text);
}

.legal-body .landing-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legal-body .landing-nav-links a {
  padding: 7px 12px;
  border-radius: 9px;
  color: var(--mkt-text-dim);
  text-decoration: none;
  font-size: 14px;
}

.legal-body .landing-nav-links a:hover,
.legal-body .landing-nav-links a[aria-current="page"] {
  background: var(--mkt-nav-hover);
  color: var(--mkt-text);
}

.legal-body .landing-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legal-body .language-switcher--dropdown .language-switcher-trigger {
  border: 1px solid var(--mkt-line);
  background: #fff;
  color: var(--mkt-text-dim);
}

.legal-body .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border: 1px solid var(--mkt-line);
  border-radius: 999px;
  background: transparent;
  color: var(--mkt-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.legal-body .btn-ghost:hover {
  border-color: var(--mkt-border-strong);
  background: var(--mkt-bg-raise);
}

.legal-body .legal-main {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(32px, 7vw, 72px) 20px 80px;
}

.legal-body .legal-card {
  background: #fff;
  border: 1px solid var(--mkt-line);
  border-radius: 22px;
  box-shadow: var(--mkt-shadow);
  padding: clamp(24px, 5vw, 56px);
}

.legal-body .legal-kicker {
  margin: 0 0 12px;
  color: var(--mkt-text-dim);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.legal-body .legal-draft-notice {
  margin: 0 0 20px;
  padding: 12px 14px;
  border: 1px solid var(--mkt-line);
  border-radius: 12px;
  background: var(--mkt-bg-raise);
  color: var(--mkt-text-dim);
  font-size: 13px;
  line-height: 1.6;
}

.legal-body .legal-identity {
  margin: 24px 0 30px;
  padding: 18px 20px;
  border: 1px solid var(--mkt-line);
  border-radius: 14px;
  background: var(--mkt-bg-raise);
}

.legal-body .legal-identity strong {
  display: block;
  margin-bottom: 7px;
  color: var(--mkt-text);
  font-size: 14px;
}

.legal-body .legal-identity p,
.legal-body .legal-identity address {
  margin: 0 0 4px;
  color: var(--mkt-text-dim);
  font-size: 14px;
  font-style: normal;
  line-height: 1.55;
}

.legal-body .legal-card h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 650;
  color: var(--mkt-text);
}

.legal-body .legal-card h2 {
  margin: 32px 0 10px;
  font-size: 18px;
  color: var(--mkt-text);
}

.legal-body .legal-card p {
  margin: 0 0 14px;
  color: var(--mkt-text-dim);
  font-size: 15px;
  line-height: 1.72;
}

.legal-body .legal-card a {
  color: var(--mkt-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-body .legal-card a:hover {
  color: var(--mkt-text);
}

/* Marketing pages stay light — hide theme toggle */
.auth-body .theme-toggle,
.legal-body .theme-toggle,
.oauth-complete-body .theme-toggle {
  display: none !important;
}

@media (max-width: 640px) {
  .legal-body .landing-nav-links {
    display: none;
  }
}