:root {
  --bg: #f5f7fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-dark: #0d1526;
  --text: #101828;
  --muted: #5f6c82;
  --border: rgba(16, 24, 40, 0.08);
  --border-strong: rgba(63, 95, 166, 0.18);
  --accent: #346dff;
  --accent-soft: rgba(52, 109, 255, 0.12);
  --shadow: 0 30px 80px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.06);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(52, 109, 255, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(90, 131, 255, 0.08), transparent 22%),
    linear-gradient(180deg, #fbfcff 0%, var(--bg) 48%, #eef2f8 100%);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.page-shell {
  min-height: 100vh;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(245, 247, 251, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(145deg, #1f4fde, #7ca0ff);
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 999px;
}

.brand-mark::before {
  width: 18px;
  height: 3px;
  left: 9px;
  top: 11px;
}

.brand-mark::after {
  width: 14px;
  height: 3px;
  left: 9px;
  top: 19px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.96rem;
}

.nav-links a:hover,
.footer-links a:hover,
.sidebar a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.button,
.button-secondary,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 12px 20px;
  border: none;
  font-weight: 600;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button {
  color: #ffffff;
  background: linear-gradient(145deg, #1e2d43, #162847);
  box-shadow: 0 10px 20px rgba(22, 40, 71, 0.18);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--border);
}

.button-ghost {
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(52, 109, 255, 0.2);
}

.button:hover,
.button-secondary:hover,
.button-ghost:hover,
.card:hover,
.step:hover,
.mini-plan:hover,
.docs-card:hover,
.demo-card:hover,
.pricing-card:hover {
  transform: translateY(-2px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.85;
  transform: none;
}

.hero,
.section,
.page-hero {
  padding: 88px 0;
}

.hero-grid,
.page-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(52, 109, 255, 0.14);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 0.96;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.02;
}

h3 {
  font-size: 1.22rem;
  line-height: 1.1;
}

.lede,
.section-copy,
.hero-copy p,
.page-hero-copy p {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 640px;
}

.hero-actions,
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 16px;
}

.support-line {
  color: var(--muted);
  font-size: 0.98rem;
}

.hero-audience {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
}

.hero-audience-label {
  color: var(--muted);
  font-size: 0.96rem;
  font-weight: 600;
}

.panel {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
}

.hero-visual {
  padding: 18px;
}

.mock-window {
  overflow: hidden;
  background: linear-gradient(180deg, #fdfefe 0%, #f5f8fd 100%);
}

.mock-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(16, 24, 40, 0.06);
}

.mock-dots {
  display: flex;
  gap: 8px;
}

.mock-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(95, 108, 130, 0.24);
}

.mock-dots span:first-child {
  background: rgba(239, 68, 68, 0.35);
}

.mock-dots span:nth-child(2) {
  background: rgba(245, 158, 11, 0.35);
}

.mock-dots span:nth-child(3) {
  background: rgba(34, 197, 94, 0.35);
}

.mock-topbar strong {
  font-size: 0.95rem;
}

.mock-badge {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--accent);
  background: var(--accent-soft);
}

.mock-layout {
  display: grid;
  grid-template-columns: 170px 210px 1fr;
  min-height: 430px;
}

.mock-sidebar,
.mock-thread-list,
.mock-thread-view {
  padding: 20px 18px;
}

.mock-sidebar {
  background: rgba(238, 243, 250, 0.85);
  border-right: 1px solid rgba(16, 24, 40, 0.06);
}

.mock-thread-list {
  border-right: 1px solid rgba(16, 24, 40, 0.06);
}

.mock-section-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #7b8798;
  margin-bottom: 14px;
}

.tenant-item,
.thread-item {
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 12px;
  margin-bottom: 10px;
}

.tenant-item.active,
.thread-item.active {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(52, 109, 255, 0.12);
  box-shadow: 0 8px 18px rgba(52, 109, 255, 0.08);
}

.tenant-item strong,
.thread-item strong,
.message-card strong,
.callout strong,
.stat strong,
.faq-item strong {
  display: block;
  margin-bottom: 4px;
}

.tenant-item span,
.thread-item span,
.message-card p,
.callout p,
.stat p,
.footer-note,
.faq-item p,
.form-note,
.table-row span:last-child,
.docs-copy p {
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(52, 109, 255, 0.08);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.thread-item small,
.mail-meta,
.stat-label,
.code-header span,
.table-row span,
.sidebar small {
  color: #7b8798;
}

.thread-item p,
.message-card p,
.step p,
.mini-plan p,
.feature-card p,
.use-case p,
.pricing-card p,
.docs-card p,
.demo-card p,
.faq-item p,
.footer-columns p {
  margin: 0;
}

.message-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(16, 24, 40, 0.06);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
}

.message-card.highlight {
  background: linear-gradient(180deg, rgba(52, 109, 255, 0.1), rgba(255, 255, 255, 0.96));
  border-color: rgba(52, 109, 255, 0.18);
}

.value-strip {
  padding: 0 0 32px;
}

.trust-line {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.98rem;
  text-align: center;
}

.value-grid,
.feature-grid,
.use-case-grid,
.pricing-preview-grid,
.pricing-grid,
.docs-grid,
.demo-grid,
.faq-grid,
.footer-columns {
  display: grid;
  gap: 20px;
}

.value-grid {
  grid-template-columns: repeat(3, 1fr);
}

.value-item,
.feature-card,
.use-case,
.pricing-card,
.docs-card,
.demo-card,
.faq-item,
.mini-plan,
.step,
.table-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.value-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  font-weight: 600;
}

.value-icon,
.feature-icon,
.step-number,
.docs-icon,
.demo-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(52, 109, 255, 0.12);
  color: var(--accent);
  font-weight: 700;
}

.section-head {
  max-width: 700px;
  margin-bottom: 34px;
}

.feature-grid {
  grid-template-columns: repeat(5, 1fr);
}

.mailbox-showcase {
  display: grid;
  gap: 28px;
}

.mailbox-showcase-head {
  max-width: 760px;
}

.mailbox-shell {
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(52, 109, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(244, 247, 253, 0.96) 100%);
}

.mailbox-overview {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.mailbox-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mailbox-overview h3 {
  max-width: 520px;
}

.mailbox-summary {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.mailbox-stat {
  min-width: 110px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(52, 109, 255, 0.08);
  box-shadow: var(--shadow-soft);
}

.mailbox-stat span,
.mailbox-conversation-head p,
.mailbox-thread p,
.context-card p,
.mailbox-compose-head span,
.mailbox-search,
.mailbox-message-meta,
.mailbox-thread small {
  color: var(--muted);
}

.mailbox-app {
  display: grid;
  grid-template-columns: 190px 260px minmax(0, 1fr) 220px;
  border-radius: 24px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(16, 24, 40, 0.06);
}

.mailbox-nav,
.mailbox-list,
.mailbox-conversation,
.mailbox-context {
  padding: 22px 18px;
}

.mailbox-nav,
.mailbox-list,
.mailbox-conversation {
  border-right: 1px solid rgba(16, 24, 40, 0.06);
}

.mailbox-nav {
  background: rgba(236, 241, 249, 0.88);
}

.mailbox-nav-item,
.mailbox-thread,
.context-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.54);
}

.mailbox-nav-item,
.mailbox-thread {
  margin-bottom: 12px;
}

.mailbox-nav-item.active,
.mailbox-thread.active {
  border-color: rgba(52, 109, 255, 0.14);
  box-shadow: 0 10px 24px rgba(52, 109, 255, 0.08);
  background: rgba(255, 255, 255, 0.92);
}

.mailbox-toolbar,
.mailbox-conversation-head,
.mailbox-compose-head,
.mailbox-compose-footer,
.mailbox-thread-top,
.mailbox-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mailbox-toolbar {
  margin-bottom: 16px;
}

.mailbox-search {
  flex: 1;
  padding: 11px 14px;
  border-radius: 999px;
  background: rgba(238, 243, 250, 0.92);
  border: 1px solid rgba(16, 24, 40, 0.05);
  font-size: 0.94rem;
}

.mailbox-thread-top {
  align-items: flex-start;
}

.mailbox-thread p,
.mailbox-thread small,
.mailbox-conversation-head p,
.context-card p {
  margin: 0;
}

.mailbox-conversation {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72) 0%, rgba(246, 249, 253, 0.9) 100%);
}

.mailbox-conversation-head {
  align-items: flex-start;
  margin-bottom: 18px;
}

.mailbox-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.mailbox-message {
  max-width: 86%;
  padding: 16px 18px;
  border-radius: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
}

.mailbox-message.inbound {
  background: #ffffff;
  border: 1px solid rgba(16, 24, 40, 0.06);
}

.mailbox-message.outbound {
  margin-left: auto;
  background: linear-gradient(145deg, rgba(52, 109, 255, 0.12), rgba(255, 255, 255, 0.94));
  border: 1px solid rgba(52, 109, 255, 0.14);
}

.mailbox-message p,
.mailbox-compose-body {
  margin: 0;
}

.mailbox-compose {
  margin-top: 18px;
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(16, 24, 40, 0.06);
}

.mailbox-compose-head {
  align-items: flex-start;
  margin-bottom: 14px;
}

.mailbox-compose-body {
  min-height: 102px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(244, 247, 253, 0.88);
  border: 1px solid rgba(16, 24, 40, 0.05);
}

.mailbox-compose-footer {
  margin-top: 14px;
  flex-wrap: wrap;
}

.mailbox-context {
  background: rgba(247, 249, 253, 0.88);
}

.context-card {
  margin-bottom: 12px;
}

.context-card:last-child {
  margin-bottom: 0;
}

.feature-card,
.use-case,
.docs-card,
.demo-card,
.faq-item {
  padding: 22px;
}

.feature-card {
  min-height: 220px;
}

.feature-icon,
.docs-icon,
.demo-icon {
  margin-bottom: 18px;
}

.spotlight {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: stretch;
}

.spotlight-copy {
  padding: 34px;
}

.spotlight-copy p {
  color: var(--muted);
}

.callout-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.callout {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(16, 24, 40, 0.06);
}

.callout-mark {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.spotlight-visual {
  padding: 20px;
}

.spotlight-visual .mock-layout {
  min-height: 500px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.step,
.mini-plan {
  padding: 22px;
}

.step-number {
  margin-bottom: 18px;
}

.use-case-grid,
.pricing-preview-grid,
.pricing-grid {
  grid-template-columns: repeat(4, 1fr);
}

.code-section {
  padding: 88px 0;
}

.code-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  padding: 32px;
  background: linear-gradient(180deg, #0f1728 0%, #0a1020 100%);
  border-radius: 32px;
  color: #eef4ff;
  box-shadow: 0 28px 60px rgba(7, 15, 30, 0.24);
}

.code-wrap p {
  color: rgba(221, 230, 247, 0.72);
}

.code-panel {
  background: rgba(15, 23, 42, 0.68);
  border: 1px solid rgba(147, 197, 253, 0.14);
  border-radius: 24px;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-header .mock-dots span {
  background: rgba(221, 230, 247, 0.14);
}

pre {
  margin: 0;
  padding: 24px;
  overflow-x: auto;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #dbe8ff;
}

.pricing-card {
  padding: 24px;
}

.pricing-card.highlight {
  border-color: rgba(52, 109, 255, 0.24);
  box-shadow: 0 24px 40px rgba(52, 109, 255, 0.12);
  position: relative;
}

.pricing-card.highlight::before {
  content: "Most Popular";
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(52, 109, 255, 0.12);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.plan-price {
  display: block;
  margin: 22px 0 10px;
  font-size: 2.3rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.check-list li::before {
  content: "•";
  color: var(--accent);
  font-weight: 700;
  display: inline-block;
  width: 16px;
}

.cta-panel {
  padding: 42px;
  text-align: center;
  background:
    radial-gradient(circle at top center, rgba(52, 109, 255, 0.14), transparent 36%),
    rgba(255, 255, 255, 0.78);
}

.cta-panel p {
  color: var(--muted);
  max-width: 580px;
  margin: 14px auto 0;
}

.site-footer {
  padding: 34px 0 48px;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(16, 24, 40, 0.08);
}

.footer-columns {
  grid-template-columns: repeat(4, auto);
  align-items: start;
}

.footer-links {
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.page-hero {
  padding-bottom: 56px;
}

.page-hero-grid.compact {
  grid-template-columns: 1.1fr 0.9fr;
}

.stat-grid,
.table-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.stat {
  padding: 22px;
}

.stat strong {
  display: block;
  font-size: 2rem;
  margin-bottom: 6px;
  letter-spacing: -0.04em;
}

.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
}

.enterprise-row {
  margin-top: 22px;
  padding: 26px;
}

.table-card {
  padding: 26px;
}

.table-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(16, 24, 40, 0.06);
}

.table-row:last-child {
  border-bottom: none;
}

.faq-grid {
  grid-template-columns: repeat(2, 1fr);
}

.docs-grid {
  grid-template-columns: 280px 1fr;
}

.sidebar {
  position: sticky;
  top: 92px;
  align-self: start;
  padding: 24px;
}

.sidebar nav {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.sidebar a {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
}

.sidebar a.active {
  background: rgba(52, 109, 255, 0.1);
  color: var(--accent);
  font-weight: 600;
}

.docs-content {
  display: grid;
  gap: 22px;
}

.docs-card pre {
  padding: 18px 0 0;
  color: var(--text);
}

.docs-card code,
pre code {
  font-family: Consolas, "SFMono-Regular", monospace;
}

.docs-snippet {
  background: rgba(12, 20, 36, 0.96);
  border-radius: 20px;
  overflow: hidden;
}

.docs-snippet pre {
  color: #dbe8ff;
}

.mini-plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.demo-grid {
  grid-template-columns: 0.85fr 1.15fr;
}

.form-card,
.contact-card {
  padding: 28px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin: 0;
  min-height: 24px;
  color: var(--muted);
  font-size: 0.96rem;
}

.demo-response-note {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.96rem;
}

.form-status.is-pending {
  color: var(--muted);
}

.form-status.is-success {
  color: #0f7b53;
}

.form-status.is-error {
  color: #bb2437;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(16, 24, 40, 0.12);
  border-radius: 16px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font: inherit;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(52, 109, 255, 0.24);
  border-color: rgba(52, 109, 255, 0.24);
}

.contact-stack {
  display: grid;
  gap: 18px;
}

.contact-line {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(16, 24, 40, 0.06);
}

.contact-line:last-child {
  border-bottom: none;
}

.fade-in {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 640ms ease forwards;
}

.fade-in.delay-1 {
  animation-delay: 120ms;
}

.fade-in.delay-2 {
  animation-delay: 240ms;
}

.fade-in.delay-3 {
  animation-delay: 360ms;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .hero-grid,
  .page-hero-grid,
  .spotlight,
  .code-wrap,
  .demo-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps,
  .use-case-grid,
  .pricing-preview-grid,
  .pricing-grid,
  .mini-plan-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mailbox-app {
    grid-template-columns: 1fr;
  }

  .mailbox-nav,
  .mailbox-list,
  .mailbox-conversation {
    border-right: none;
    border-bottom: 1px solid rgba(16, 24, 40, 0.06);
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(var(--container), calc(100% - 28px));
  }

  .nav {
    flex-wrap: wrap;
  }

  .mailbox-overview,
  .mailbox-toolbar,
  .mailbox-conversation-head,
  .mailbox-compose-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .mailbox-summary,
  .mailbox-actions,
  .mailbox-compose-footer {
    justify-content: flex-start;
  }

  .mailbox-message {
    max-width: 100%;
  }

  .nav-links,
  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .hero,
  .section,
  .page-hero,
  .code-section {
    padding: 68px 0;
  }

  h1 {
    font-size: clamp(2.5rem, 14vw, 4rem);
  }

  .mock-layout {
    grid-template-columns: 1fr;
  }

  .mock-sidebar,
  .mock-thread-list {
    border-right: none;
    border-bottom: 1px solid rgba(16, 24, 40, 0.06);
  }

  .value-grid,
  .feature-grid,
  .steps,
  .use-case-grid,
  .pricing-preview-grid,
  .pricing-grid,
  .faq-grid,
  .footer-columns,
  .stat-grid,
  .table-grid,
  .mini-plan-grid {
    grid-template-columns: 1fr;
  }

  .footer-wrap,
  .contact-line {
    flex-direction: column;
  }

  .cta-panel,
  .code-wrap,
  .spotlight-copy,
  .form-card,
  .contact-card {
    padding: 24px;
  }
}