:root {
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 32px; --space-8: 40px;
  --space-9: 56px; --space-10: 64px;

  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px;
  --radius-xl: 20px; --radius-2xl: 28px;

  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --text-largetitle: 34px; --text-title1: 28px; --text-title2: 22px;
  --text-title3: 20px; --text-headline: 17px; --text-body: 17px;
  --text-callout: 16px; --text-subheadline: 15px; --text-footnote: 13px; --text-caption: 12px;

  --bg-primary: #FFFFFF; --bg-secondary: #F2F2F7;
  --label-primary: #1C1C1E; --label-secondary: rgba(60,60,67,0.6);
  --label-tertiary: rgba(60,60,67,0.42); --separator: rgba(60,60,67,0.29);
  --accent: #007AFF; --accent-success: #34C759;
  --accent-destructive: #FF3B30; --accent-warning: #FF9500;
  --brand-accent: #78B82A;

  --glass-blur: 20px; --glass-tint-opacity: 0.78;
  --glass-tint-opacity-decorative: 0.45;
  --glass-surface: rgba(255,255,255,0.78);
  --glass-surface-strong: rgba(255,255,255,0.96);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.16);
  --ease-spring: cubic-bezier(0.32,0.72,0,1);
  --duration-fast: 150ms; --duration-base: 300ms; --duration-slow: 450ms;
}

:root[data-theme="dark"] {
  --bg-primary: #000000; --bg-secondary: #1C1C1E;
  --label-primary: #FFFFFF; --label-secondary: rgba(235,235,245,0.6);
  --label-tertiary: rgba(235,235,245,0.38); --separator: rgba(84,84,88,0.65);
  --accent: #0A84FF; --accent-success: #30D158;
  --accent-destructive: #FF453A; --accent-warning: #FF9F0A;
  --brand-accent: #B8F36B;
  --glass-surface: rgba(28,28,30,0.78);
  --glass-surface-strong: rgba(28,28,30,0.96);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #000000; --bg-secondary: #1C1C1E;
    --label-primary: #FFFFFF; --label-secondary: rgba(235,235,245,0.6);
    --label-tertiary: rgba(235,235,245,0.38); --separator: rgba(84,84,88,0.65);
    --accent: #0A84FF; --accent-success: #30D158;
    --accent-destructive: #FF453A; --accent-warning: #FF9F0A;
    --brand-accent: #B8F36B;
    --glass-surface: rgba(28,28,30,0.78);
    --glass-surface-strong: rgba(28,28,30,0.96);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; background: var(--bg-primary); scroll-behavior: smooth; }
body {
  min-width: 320px; margin: 0; overflow-x: hidden;
  background: var(--bg-primary); color: var(--label-primary);
  font: 400 var(--text-body)/1.4 var(--font-family);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
body::before { position: fixed; inset: 0; z-index: -1; background: var(--bg-primary); content: ""; pointer-events: none; }
a { color: inherit; }
img { max-width: 100%; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.container { width: min(calc(100% - var(--space-7)),1180px); margin: 0 auto; }
.muted { color: var(--label-secondary); }
.text-link, .legal-shell a, .auth-footer a { color: var(--accent); text-decoration: none; }
.text-link:hover, .legal-shell a:hover, .auth-footer a:hover { text-decoration: underline; }
.eyebrow, .kicker, .section-index, .metric-label, .nav-label, .field-label, .status-label {
  font-size: var(--text-footnote); font-weight: 600; line-height: 1.35; letter-spacing: 0;
}
.eyebrow, .kicker { color: var(--label-secondary); }

/* Shared interactive states. */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 44px; padding: var(--space-3) var(--space-4);
  border: 1px solid transparent; border-radius: var(--radius-md);
  color: var(--label-primary); cursor: pointer; font-weight: 600; line-height: 1.2;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-spring), opacity var(--duration-fast) var(--ease-spring),
    background-color var(--duration-fast) ease, border-color var(--duration-fast) ease;
}
.button:hover { background-color: rgba(127,127,127,0.12); }
.button:active { transform: scale(0.97); opacity: 0.86; }
.button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(10,132,255,0.32);
}
.button:disabled, .button[aria-disabled="true"] { opacity: 0.4; cursor: not-allowed; transform: none; }
.button-primary { background: var(--accent); color: #FFFFFF; }
.button-primary:hover { background-color: color-mix(in srgb,var(--accent) 84%,#FFFFFF); }
.button-secondary, .button-ghost {
  border-color: var(--separator); background-color: var(--bg-secondary);
}
.button-secondary:hover, .button-ghost:hover { border-color: var(--label-tertiary); }
.button-wide { width: 100%; }
.button-small { min-height: 44px; padding-inline: var(--space-3); font-size: var(--text-subheadline); }

/* The navigation/control layer uses tinted glass; content surfaces below stay opaque. */
.site-header {
  position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--separator);
  background-color: var(--glass-surface); backdrop-filter: blur(var(--glass-blur));
}
.site-nav { display: flex; align-items: center; justify-content: space-between; min-height: 56px; gap: var(--space-6); }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); min-height: 44px; color: var(--label-primary); font-weight: 600; text-decoration: none; white-space: nowrap; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; gap: 2px; width: 32px; height: 32px; flex: 0 0 32px; border: 2px solid var(--brand-accent); border-radius: 50%; }
.brand-mark span { display: block; width: 4px; height: 16px; border-radius: var(--radius-sm); background: var(--brand-accent); transform: skew(-24deg); }
.brand-mark span + span { height: 10px; opacity: 0.64; }
.site-links { display: flex; align-items: center; gap: var(--space-4); color: var(--label-secondary); font-size: var(--text-subheadline); }
.site-links a { display: inline-flex; align-items: center; min-height: 44px; padding-inline: var(--space-2); text-decoration: none; }
.site-links a:hover { color: var(--label-primary); }
.site-actions, .product-header-actions, .topbar-actions { display: flex; align-items: center; gap: var(--space-2); }
.menu-toggle { display: none; min-width: 44px; min-height: 44px; border: 1px solid var(--separator); border-radius: var(--radius-md); background: transparent; color: var(--label-primary); cursor: pointer; }
.mobile-only-link { display: none; }

/* Landing page. */
.hero { padding: var(--space-10) 0 var(--space-9); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(360px,1fr); gap: var(--space-10); align-items: center; }
.hero h1 { max-width: 640px; margin: var(--space-4) 0 var(--space-6); font-size: var(--text-largetitle); font-weight: 700; }
.hero h1 em, .workspace-hero h2 em { color: var(--brand-accent); font-style: normal; }
.hero-copy { max-width: 560px; color: var(--label-secondary); font-size: var(--text-body); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-7); }
.hero-note { display: flex; align-items: center; gap: var(--space-2); margin-top: var(--space-5); color: var(--label-tertiary); font-size: var(--text-footnote); }
.status-dot { display: inline-block; width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: var(--accent-success); }
.hero-visual { position: relative; min-height: 440px; overflow: hidden; padding: var(--space-6); border: 1px solid var(--separator); border-radius: var(--radius-2xl); background: var(--bg-secondary); box-shadow: var(--shadow-md); }
.visual-top { display: flex; justify-content: space-between; gap: var(--space-4); color: var(--label-secondary); font-size: var(--text-footnote); }
.visual-orbit { position: absolute; top: 80px; right: -48px; width: 420px; height: 180px; border: 1px solid rgba(10,132,255,var(--glass-tint-opacity-decorative)); border-radius: 50%; transform: rotate(24deg); }
.visual-orbit::after { position: absolute; inset: -20px var(--space-4); border: 1px solid rgba(184,243,107,var(--glass-tint-opacity-decorative)); border-radius: 50%; content: ""; transform: rotate(-48deg); }
.visual-orb, .hero-orb { position: absolute; width: 176px; height: 176px; border-radius: 50%; background: var(--brand-accent); opacity: var(--glass-tint-opacity-decorative); }
.visual-orb { top: 92px; right: 96px; }
.visual-mail, .hero-envelope { position: absolute; z-index: 2; width: 128px; height: 88px; border: 1px solid var(--label-primary); border-radius: var(--radius-lg); background: var(--bg-secondary); transform: rotate(-8deg); }
.visual-mail { top: 146px; right: 132px; }
.hero-envelope { top: 54px; right: 82px; width: 92px; height: 64px; }
.visual-mail::before, .visual-mail::after, .hero-envelope::before, .hero-envelope::after { position: absolute; top: 50%; width: 70%; height: 1px; background: var(--label-secondary); content: ""; }
.visual-mail::before, .hero-envelope::before { left: 5%; transform: rotate(31deg); }
.visual-mail::after, .hero-envelope::after { right: 5%; transform: rotate(-31deg); }
.visual-mail i { position: absolute; top: -4px; right: var(--space-4); width: 8px; height: 8px; border-radius: 50%; background: var(--accent-success); }
.visual-console { position: absolute; right: var(--space-6); bottom: var(--space-6); left: var(--space-6); padding: var(--space-4); border: 1px solid var(--separator); border-radius: var(--radius-xl); background-color: var(--bg-secondary); }
.console-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 56px; border-bottom: 1px solid var(--separator); }
.console-row:last-child { border-bottom: 0; }
.console-label { display: grid; gap: var(--space-1); min-width: 0; color: var(--label-primary); font-size: var(--text-subheadline); }
.console-label span, .console-label small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.console-label small { color: var(--label-secondary); font-size: var(--text-footnote); }
.console-status { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--accent-success); font-size: var(--text-footnote); white-space: nowrap; }
.trust-strip { padding: var(--space-4) 0; border-top: 1px solid var(--separator); border-bottom: 1px solid var(--separator); color: var(--label-secondary); }
.trust-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4); font-size: var(--text-subheadline); }
.section { padding: var(--space-10) 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: var(--space-8); margin-bottom: var(--space-7); }
.section-heading h2, .pricing-copy h2, .security-panel h2 { max-width: 620px; margin-top: var(--space-3); font-size: var(--text-title1); font-weight: 600; }
.section-heading p, .pricing-copy p, .security-panel > div > p { max-width: 440px; color: var(--label-secondary); }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-4); }
.feature-card, .workflow-step, .metric-card, .panel, .billing-info, .billing-card, .connect-card, .connect-aside { border: 1px solid var(--separator); background: var(--bg-secondary); box-shadow: var(--shadow-sm); }
.feature-card { min-height: 240px; padding: var(--space-6); border-radius: var(--radius-xl); }
.feature-number { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; margin-bottom: var(--space-9); border: 1px solid var(--separator); border-radius: var(--radius-md); color: var(--brand-accent); font-weight: 600; }
.feature-card h3 { margin-bottom: var(--space-2); font-size: var(--text-title3); }
.feature-card p, .workflow-step p, .security-item span { color: var(--label-secondary); }
.dark-band { background: var(--bg-secondary); }
.workflow { display: grid; grid-template-columns: repeat(4,1fr); overflow: hidden; border: 1px solid var(--separator); border-radius: var(--radius-xl); }
.workflow-step { min-height: 210px; padding: var(--space-6); border: 0; border-right: 1px solid var(--separator); border-radius: 0; }
.workflow-step:last-child { border-right: 0; }
.workflow-step .eyebrow { display: inline-block; color: var(--brand-accent); }
.workflow-step strong { display: block; margin: var(--space-9) 0 var(--space-2); font-size: var(--text-headline); }
.pricing-grid { display: grid; grid-template-columns: minmax(0,0.9fr) minmax(360px,1.1fr); gap: var(--space-10); align-items: center; }
.price-card { padding: var(--space-7); border: 1px solid var(--brand-accent); border-radius: var(--radius-xl); background: var(--bg-secondary); box-shadow: var(--shadow-md); }
.price-card h3 { font-size: var(--text-title3); }
.price { display: flex; align-items: baseline; gap: var(--space-2); margin: var(--space-5) 0 var(--space-6); }
.price strong { font-size: clamp(2.75rem,7vw,4rem); }
.price span, .price-footnote { color: var(--label-secondary); }
.price-list, .billing-points { display: grid; gap: var(--space-3); margin: 0 0 var(--space-6); padding: 0; list-style: none; color: var(--label-secondary); }
.price-list li, .billing-points li { position: relative; padding-left: var(--space-6); }
.price-list li::before, .billing-points li::before { position: absolute; left: 0; color: var(--accent-success); content: "✓"; font-weight: 600; }
.price-footnote { margin-top: var(--space-4); text-align: center; font-size: var(--text-footnote); }
.security-panel { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--space-8); padding: var(--space-8); border-radius: var(--radius-2xl); }
.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.security-item { padding: var(--space-4); border: 1px solid var(--separator); border-radius: var(--radius-lg); }
.security-item strong { display: block; margin-bottom: var(--space-2); font-size: var(--text-headline); }
.cta { padding: var(--space-10) 0; text-align: center; }
.cta h2 { max-width: 700px; margin: 0 auto var(--space-4); font-size: var(--text-largetitle); }
.cta p { max-width: 520px; margin: 0 auto; color: var(--label-secondary); }
.cta .hero-actions { justify-content: center; }
.site-footer, .workspace-footer { padding: var(--space-6) 0; border-top: 1px solid var(--separator); color: var(--label-secondary); }
.footer-row, .workspace-footer { display: flex; justify-content: space-between; gap: var(--space-4); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); }

/* Auth pages. */
.auth-page { display: grid; grid-template-columns: minmax(320px,0.9fr) minmax(440px,1.1fr); min-height: 100vh; background: var(--bg-primary); }
.auth-visual { display: flex; flex-direction: column; justify-content: space-between; min-height: 100vh; padding: var(--space-8) clamp(var(--space-6),6vw,var(--space-10)); border-right: 1px solid var(--separator); background: var(--bg-secondary); }
.auth-visual-content { max-width: 480px; margin: auto 0; }
.auth-visual h1 { margin: var(--space-4) 0; font-size: var(--text-largetitle); }
.auth-visual-content p { max-width: 420px; color: var(--label-secondary); }
.auth-points { display: grid; gap: var(--space-3); margin-top: var(--space-7); color: var(--label-secondary); font-size: var(--text-subheadline); }
.auth-points span { display: flex; align-items: center; gap: var(--space-3); min-height: 44px; }
.auth-points i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-success); }
.auth-visual-foot { color: var(--label-secondary); font-size: var(--text-footnote); }
.auth-main { display: grid; place-items: center; padding: var(--space-8); }
.auth-card { width: min(440px,100%); padding: var(--space-8); border: 1px solid var(--separator); border-radius: var(--radius-2xl); background: var(--bg-secondary); box-shadow: var(--shadow-md); }
.auth-card-header { margin-bottom: var(--space-7); }
.auth-card-header h2 { margin: var(--space-3) 0 var(--space-2); font-size: var(--text-title1); font-weight: 400; }
.auth-card-header p, .auth-footer, .auth-legal { color: var(--label-secondary); }
.auth-form, .workspace-form, .oauth-form { display: grid; gap: var(--space-4); }
.field, .workspace-form label, .oauth-form label { display: grid; gap: var(--space-2); color: var(--label-secondary); font-size: var(--text-subheadline); }
.field-label { color: var(--label-primary); }
.field input, .field select, .workspace-form input, .workspace-form select, .oauth-form select { width: 100%; min-height: 48px; padding: var(--space-3) var(--space-4); border: 1px solid var(--separator); border-radius: var(--radius-md); background: var(--bg-primary); color: var(--label-primary); }
.field input:hover, .field select:hover, .workspace-form input:hover, .workspace-form select:hover, .oauth-form select:hover { border-color: var(--label-tertiary); }
.field input:focus, .field select:focus, .workspace-form input:focus, .workspace-form select:focus, .oauth-form select:focus { border-color: var(--accent); }
.auth-form .button, .oauth-form .button { min-height: 52px; }
.auth-footer { margin-top: var(--space-6); text-align: center; font-size: var(--text-subheadline); }
.auth-legal { margin-top: var(--space-5); text-align: center; font-size: var(--text-footnote); }
.auth-feedback, .form-feedback { min-height: 20px; color: var(--accent-destructive); font-size: var(--text-footnote); }
.auth-feedback.success { color: var(--accent-success); }

/* Workspace. Sidebar and topbar are control-layer glass, content remains opaque. */
.workspace { display: flex; min-height: 100vh; background: var(--bg-primary); }
.workspace-sidebar { position: fixed; inset: 0 auto 0 0; z-index: 10; display: flex; flex-direction: column; width: 272px; padding: var(--space-7) var(--space-4) var(--space-6); border-right: 1px solid var(--separator); background-color: var(--glass-surface); backdrop-filter: blur(var(--glass-blur)); }
.workspace-sidebar .brand { margin: 0 var(--space-2) var(--space-9); }
.nav-label { margin: 0 var(--space-3) var(--space-2); color: var(--label-secondary); }
.workspace-nav { display: grid; gap: var(--space-1); }
.workspace-nav a { display: flex; align-items: center; gap: var(--space-3); min-height: 44px; padding: var(--space-2) var(--space-3); border-radius: var(--radius-md); color: var(--label-secondary); text-decoration: none; }
.workspace-nav a:hover { background-color: rgba(127,127,127,0.12); color: var(--label-primary); }
.workspace-nav a.active { background-color: rgba(10,132,255,0.18); color: var(--label-primary); box-shadow: inset 3px 0 var(--accent); }
.nav-icon { display: inline-grid; place-items: center; width: 24px; height: 24px; flex: 0 0 24px; color: currentColor; fill: none; stroke: currentColor; stroke-width: 1.8; }
.active .nav-icon { color: var(--accent); }
.workspace-side-foot { margin-top: auto; padding: var(--space-4) var(--space-3) 0; border-top: 1px solid var(--separator); color: var(--label-secondary); font-size: var(--text-footnote); }
.secure-row { display: flex; align-items: center; gap: var(--space-2); min-height: 44px; margin-bottom: var(--space-2); color: var(--label-primary); }
.workspace-main { width: calc(100% - 272px); min-width: 0; margin-left: 272px; }
.workspace-topbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); min-height: 80px; padding: var(--space-5) var(--space-8); border-bottom: 1px solid var(--separator); background-color: var(--glass-surface); backdrop-filter: blur(var(--glass-blur)); }
.workspace-title h1 { margin-top: var(--space-2); font-size: var(--text-title1); font-weight: 400; }
.endpoint-chip, .account-chip { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 44px; max-width: 240px; padding: 0 var(--space-3); overflow: hidden; border: 1px solid var(--separator); border-radius: var(--radius-md); color: var(--label-secondary); background-color: var(--bg-secondary); font-size: var(--text-footnote); }
.endpoint-chip code, .account-chip { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.workspace-content { width: min(calc(100% - var(--space-8)),1420px); margin: 0 auto; padding: var(--space-6) 0 var(--space-8); }
.upgrade-banner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); padding: var(--space-4); border: 1px solid var(--accent-warning); border-radius: var(--radius-lg); background: var(--bg-secondary); }
.upgrade-banner strong { display: block; margin-bottom: var(--space-1); }
.upgrade-banner p { color: var(--label-secondary); font-size: var(--text-footnote); }
.workspace-hero { position: relative; display: flex; align-items: end; justify-content: space-between; gap: var(--space-6); min-height: 264px; overflow: hidden; padding: var(--space-8); border: 1px solid var(--separator); border-radius: var(--radius-2xl); background: var(--bg-secondary); box-shadow: var(--shadow-md); }
.workspace-hero-copy { position: relative; z-index: 1; }
.workspace-hero h2 { max-width: 600px; margin: var(--space-3) 0; font-size: var(--text-largetitle); font-weight: 400; }
.workspace-hero p { max-width: 480px; color: var(--label-secondary); }
.workspace-hero-art { position: relative; width: 300px; height: 176px; flex: 0 0 300px; opacity: var(--glass-tint-opacity-decorative); }
.workspace-hero-art::before { position: absolute; top: var(--space-5); right: var(--space-2); width: 196px; height: 136px; border: 1px solid var(--accent); border-radius: 50%; content: ""; transform: rotate(-26deg); }
.workspace-hero-art::after { position: absolute; top: 64px; right: 116px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand-accent); content: ""; }
.hero-orb { right: 68px; top: 22px; width: 136px; height: 136px; }
.hero-envelope { right: 82px; top: 54px; }
.metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-4); margin: var(--space-4) 0; }
.metric-card { min-height: 108px; padding: var(--space-5); border-radius: var(--radius-lg); }
.metric-label { display: block; margin-bottom: var(--space-2); color: var(--label-secondary); }
.metric-card strong { display: block; margin-bottom: var(--space-1); font-size: var(--text-title2); }
.metric-good { color: var(--accent-success); }
.metric-note { color: var(--label-secondary); font-size: var(--text-footnote); }
.content-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(300px,0.75fr); gap: var(--space-4); align-items: start; }
.panel { overflow: hidden; border-radius: var(--radius-xl); }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); min-height: 72px; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--separator); }
.panel-head h3 { margin-top: var(--space-1); font-size: var(--text-title3); font-weight: 400; }
.panel-status, .provider-badge { color: var(--label-secondary); font-size: var(--text-footnote); }
.provider-badge { padding: var(--space-2) var(--space-3); border: 1px solid var(--separator); border-radius: var(--radius-sm); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { min-height: 44px; padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--separator); color: var(--label-secondary); font-size: var(--text-subheadline); vertical-align: middle; }
th { color: var(--label-primary); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
.mailbox-cell { color: var(--label-primary); font-weight: 600; }
.empty-state { padding: var(--space-8) var(--space-6); text-align: center; }
.empty-state strong { display: block; margin-bottom: var(--space-2); color: var(--label-primary); }
.empty-state p { margin-bottom: var(--space-4); color: var(--label-secondary); }
.revoke { min-height: 44px; padding: var(--space-2) 0; border: 0; background: transparent; color: var(--accent-destructive); cursor: pointer; }
.revoke:hover { text-decoration: underline; }
.reconnect { margin-right: var(--space-3); color: var(--accent-blue); text-decoration: none; }
.reconnect:hover { text-decoration: underline; }
.panel-intro { padding: var(--space-5) var(--space-6) 0; color: var(--label-secondary); }
.setup-panel { padding-bottom: var(--space-4); }
.setup-action { padding: var(--space-5) var(--space-6) var(--space-6); }
.workspace-form { padding: var(--space-5) var(--space-6) 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.workspace-form summary { min-height: 44px; padding: var(--space-3) 0; color: var(--label-primary); cursor: pointer; }
.workspace-form details { border-top: 1px solid var(--separator); border-bottom: 1px solid var(--separator); }
.advanced-grid { padding: 0 0 var(--space-4); }
.toast { position: fixed; right: var(--space-6); bottom: var(--space-6); z-index: 40; max-width: min(360px,calc(100% - var(--space-8))); padding: var(--space-4); border: 1px solid var(--separator); border-radius: var(--radius-lg); background-color: rgba(28,28,30,0.96); color: var(--label-primary); box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transform: translateY(var(--space-2)); transition: opacity var(--duration-base) var(--ease-spring), transform var(--duration-base) var(--ease-spring); }
.toast.show { opacity: 1; transform: translateY(0); }

/* Product, OAuth and legal pages. */
.product-page { min-height: 100vh; background: var(--bg-primary); }
.product-header { display: flex; align-items: center; justify-content: space-between; width: min(calc(100% - var(--space-7)),1060px); min-height: 56px; margin: 0 auto; padding: var(--space-2) 0; border-bottom: 1px solid var(--separator); }
.product-main { width: min(calc(100% - var(--space-7)),1060px); margin: 0 auto; padding: var(--space-10) 0; }
.product-intro { max-width: 680px; margin-bottom: var(--space-8); }
.product-intro h1 { margin: var(--space-3) 0; font-size: var(--text-largetitle); font-weight: 400; }
.brand-accent-text { color: var(--brand-accent); }
.product-intro p { color: var(--label-secondary); }
.billing-grid, .connect-grid { display: grid; grid-template-columns: minmax(0,0.85fr) minmax(360px,1.15fr); gap: var(--space-6); align-items: start; }
.billing-info, .billing-card, .connect-card, .connect-aside { padding: var(--space-7); border-radius: var(--radius-xl); }
.billing-info h2, .billing-card h2, .connect-card h2, .connect-aside h3 { margin-bottom: var(--space-3); font-size: var(--text-title2); font-weight: 400; }
.billing-info p, .connect-card > p, .connect-aside > p { margin-bottom: var(--space-6); color: var(--label-secondary); }
.connected-state { display: grid; align-content: start; gap: var(--space-3); }
.connected-state > p { margin-bottom: var(--space-3); }
.connected-mailbox { display: flex; align-items: center; gap: var(--space-3); margin: var(--space-3) 0 var(--space-5); padding: var(--space-4); border: 1px solid var(--separator); border-radius: var(--radius-lg); background: var(--bg-primary); }
.connected-mailbox > div { display: grid; gap: var(--space-1); min-width: 0; }
.connected-mailbox strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.connected-mailbox span:not(.status-dot) { color: var(--label-secondary); font-size: var(--text-footnote); }
.connected-actions { display: grid; gap: var(--space-3); }
.billing-card { border-color: var(--brand-accent); box-shadow: var(--shadow-md); }
.billing-card-top { display: flex; justify-content: space-between; gap: var(--space-4); }
.billing-status, .billing-note { color: var(--label-secondary); font-size: var(--text-subheadline); }
.billing-price { display: flex; align-items: baseline; gap: var(--space-2); margin: var(--space-7) 0 var(--space-6); }
.billing-price strong { font-size: var(--text-largetitle); font-weight: 400; }
.billing-note { margin-top: var(--space-4); text-align: center; font-size: var(--text-footnote); }
.coupon-box { display: grid; gap: var(--space-4); margin-top: var(--space-6); padding-top: var(--space-6); border-top: 1px solid var(--separator); }
.coupon-box h3 { margin-bottom: var(--space-2); font-size: var(--text-headline); font-weight: 600; }
.coupon-box p { color: var(--label-secondary); font-size: var(--text-subheadline); }
.coupon-form { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--space-3); align-items: end; }
.coupon-form .field { min-width: 0; }
.coupon-form .button { min-width: 132px; }
.coupon-feedback { grid-column: 1 / -1; min-height: 20px; color: var(--accent-destructive) !important; font-size: var(--text-footnote) !important; }
.coupon-feedback.success { color: var(--accent-success) !important; }
.coupon-status { display: grid; gap: var(--space-1); margin-top: var(--space-6); padding: var(--space-4); border: 1px solid var(--accent-success); border-radius: var(--radius-lg); background: var(--bg-primary); color: var(--accent-success); }
.coupon-status span { color: var(--label-secondary); font-size: var(--text-subheadline); }
.stepper { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-8); color: var(--label-secondary); overflow-x: auto; }
.step { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 44px; white-space: nowrap; }
.step-number { display: inline-grid; place-items: center; width: 28px; height: 28px; border: 1px solid var(--separator); border-radius: 50%; font-size: var(--text-footnote); }
.step.active { color: var(--label-primary); }
.step.active .step-number { border-color: var(--accent); background: var(--accent); color: #FFFFFF; }
.step:not(:last-child)::after { width: var(--space-6); height: 1px; margin-left: var(--space-3); background: var(--separator); content: ""; }
.aside-list { display: grid; gap: var(--space-4); }
.aside-list > div { display: grid; gap: var(--space-1); padding-top: var(--space-4); border-top: 1px solid var(--separator); }
.aside-list strong { font-size: var(--text-headline); }
.aside-list span { color: var(--label-secondary); font-size: var(--text-subheadline); }
.oauth-page, .legal-page { min-height: 100vh; padding: var(--space-8) var(--space-4); background: var(--bg-primary); }
.oauth-shell, .legal-shell { width: min(100%,720px); margin: var(--space-8) auto; padding: var(--space-8); border: 1px solid var(--separator); border-radius: var(--radius-2xl); background: var(--bg-secondary); box-shadow: var(--shadow-lg); }
.oauth-shell .brand, .legal-shell .brand { margin-bottom: var(--space-8); }
.oauth-shell h1, .legal-shell h1 { margin-bottom: var(--space-3); font-size: var(--text-title1); font-weight: 400; }
.oauth-shell > p, .legal-shell > p { margin-bottom: var(--space-6); color: var(--label-secondary); }
.oauth-form { margin-top: var(--space-6); }
.oauth-error, .error { padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: var(--bg-secondary); color: var(--accent-destructive); }
.oauth-note { margin-top: var(--space-6); }
.legal-shell h2 { margin: var(--space-8) 0 var(--space-3); font-size: var(--text-title3); font-weight: 400; }
.legal-meta { color: var(--label-secondary); font-size: var(--text-footnote); }
.legal-nav { display: flex; flex-wrap: wrap; gap: var(--space-4); padding-top: var(--space-6); border-top: 1px solid var(--separator); }

@media (max-width: 900px) {
  .hero-grid, .pricing-grid, .security-panel { grid-template-columns: 1fr; }
  .hero-visual { min-height: 400px; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .workflow { grid-template-columns: repeat(2,1fr); }
  .workflow-step:nth-child(2) { border-right: 0; }
  .workflow-step:nth-child(-n + 2) { border-bottom: 1px solid var(--separator); }
  .security-list { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
  .container, .product-header, .product-main { width: calc(100% - var(--space-7)); }
  .site-nav { min-height: 56px; }
  .site-links, .site-actions .button-secondary, .site-actions .button-primary { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .site-nav.open .site-links { position: absolute; top: 56px; right: var(--space-4); left: var(--space-4); display: grid; gap: 0; padding: var(--space-2); border: 1px solid var(--separator); border-radius: var(--radius-xl); background-color: var(--bg-secondary); box-shadow: var(--shadow-lg); }
  .site-nav.open .site-links a, .site-nav.open .site-links .mobile-only-link { display: flex; min-height: 44px; padding: var(--space-3); }
  .hero { padding: var(--space-9) 0; }
  .hero-grid { gap: var(--space-7); }
  .hero h1 { font-size: var(--text-largetitle); }
  .hero-copy { font-size: var(--text-callout); }
  .hero-actions .button { flex: 1 1 180px; }
  .hero-visual { min-height: 360px; padding: var(--space-4); }
  .visual-console { right: var(--space-4); bottom: var(--space-4); left: var(--space-4); padding: var(--space-3); }
  .visual-orb { right: var(--space-8); top: var(--space-7); width: 148px; height: 148px; }
  .visual-mail { right: 72px; top: 108px; }
  .trust-grid { display: grid; grid-template-columns: 1fr 1fr; }
  .section { padding: var(--space-9) 0; }
  .section-heading { display: block; }
  .section-heading h2 { margin-bottom: var(--space-4); }
  .feature-grid, .workflow, .security-list { grid-template-columns: 1fr; }
  .workflow-step, .workflow-step:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--separator); }
  .workflow-step:last-child { border-bottom: 0; }
  .security-panel { padding: var(--space-6); }
  .footer-row, .workspace-footer { display: grid; }
  .auth-page { display: block; }
  .auth-visual { min-height: auto; padding: var(--space-6) var(--space-5); border-right: 0; border-bottom: 1px solid var(--separator); }
  .auth-visual-content { margin: var(--space-9) 0 var(--space-7); }
  .auth-visual h1 { font-size: var(--text-largetitle); }
  .auth-points, .auth-visual-foot { display: none; }
  .auth-main { padding: var(--space-8) var(--space-5) var(--space-10); }
  .auth-card { padding: var(--space-6) var(--space-5); }
  .workspace { display: block; width: 100%; min-width: 0; }
  .workspace-sidebar { position: relative; inset: auto; display: block; width: 100%; min-width: 0; min-height: 0; padding: var(--space-5) var(--space-4); border-right: 0; border-bottom: 1px solid var(--separator); }
  .workspace-sidebar .brand { margin: 0 0 var(--space-4); }
  .workspace-nav { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--space-2); width: 100%; overflow: visible; }
  .workspace-nav a { min-width: 0; min-height: 48px; padding: var(--space-2) var(--space-3); line-height: 1.2; }
  .workspace-side-foot { display: none; }
  .workspace-main { display: block; width: 100%; min-width: 0; margin-left: 0; }
  .workspace-topbar { display: block; min-height: 0; padding: var(--space-5) var(--space-4); }
  .topbar-actions { flex-wrap: wrap; margin-top: var(--space-4); }
  .workspace-content { width: calc(100% - var(--space-7)); padding-top: var(--space-3); }
  .upgrade-banner { align-items: flex-start; flex-direction: column; }
  .workspace-hero { min-height: 360px; padding: var(--space-6) var(--space-5); align-items: flex-start; }
  .workspace-hero h2 { max-width: 86%; font-size: var(--text-largetitle); }
  .workspace-hero p { max-width: 92%; }
  .workspace-hero-art { position: absolute; right: -64px; bottom: var(--space-1); }
  .metrics, .content-grid, .billing-grid, .connect-grid { grid-template-columns: 1fr; }
  .form-row, .advanced-grid { grid-template-columns: 1fr; }
  .billing-info, .billing-card, .connect-card, .connect-aside { padding: var(--space-6); }
  .coupon-form { grid-template-columns: 1fr; align-items: stretch; }
  .coupon-form .button { width: 100%; }
  .product-header { flex-wrap: wrap; gap: var(--space-2); }
  .product-header-actions { width: 100%; justify-content: flex-end; }
  .product-main { padding: var(--space-8) 0 var(--space-10); }
  .product-intro h1 { font-size: var(--text-largetitle); }
  .oauth-page, .legal-page { padding: var(--space-4) var(--space-3); }
  .oauth-shell, .legal-shell { margin: var(--space-4) auto; padding: var(--space-6) var(--space-5); }
}
@media (max-width: 430px) {
  .container, .product-header, .product-main { width: calc(100% - var(--space-7)); }
  .site-nav .brand { gap: var(--space-2); font-size: var(--text-subheadline); }
  .brand-mark { width: 28px; height: 28px; flex-basis: 28px; }
  .hero-actions .button { flex-basis: 100%; }
  .hero-visual { min-height: 336px; }
  .visual-top { font-size: var(--text-caption); }
  .console-label { max-width: 165px; }
  .workspace-topbar { padding-inline: var(--space-4); }
  .topbar-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .endpoint-chip, .account-chip, .topbar-actions .button { width: 100%; max-width: none; }
  .workspace-content { width: calc(100% - var(--space-6)); }
  .workspace-hero { min-height: 352px; padding: var(--space-5); }
  .workspace-hero h2 { max-width: 88%; font-size: var(--text-largetitle); }
  .panel-head, .panel-intro, .workspace-form { padding-inline: var(--space-4); }
  .billing-info, .billing-card, .connect-card, .connect-aside { padding: var(--space-5); }
  .legal-shell, .oauth-shell { padding-inline: var(--space-4); }
}
@media (prefers-reduced-transparency: reduce) {
  .site-header, .workspace-sidebar, .workspace-topbar, .site-nav.open .site-links, .visual-console, .endpoint-chip, .account-chip, .toast { background: var(--bg-secondary); backdrop-filter: none; }
}
@media (prefers-reduced-motion: reduce) {
  :root { --duration-fast: 0ms; --duration-base: 0ms; --duration-slow: 0ms; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0ms !important; transition-duration: 0ms !important; }
}