:root {
  --mt-ink: #0b1528;
  --mt-navy: #08162b;
  --mt-navy-soft: #102441;
  --mt-orange: #ff6b12;
  --mt-line: #dfe7f2;
  --mt-muted: #65738a;
  --mt-bg: #f4f7fb;
}

.mail-test-page {
  background: var(--mt-bg);
  color: var(--mt-ink);
}

.mail-test-page .support-chat {
  display: none !important;
}

.mail-test-notice {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 20px;
  background: #fff3e9;
  border-bottom: 1px solid #fed8bd;
  font-size: 12px;
  letter-spacing: .04em;
}

.mail-test-notice span {
  padding: 4px 9px;
  border-radius: 999px;
  color: #fff;
  background: var(--mt-orange);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.mail-test-notice strong {
  font-weight: 800;
}

.mail-test-page .nav {
  top: 0;
}

.mail-test-nav-label {
  color: var(--mt-muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
}

.mail-test-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 72px;
  background:
    radial-gradient(circle at 88% 5%, rgba(255,107,18,.18), transparent 30%),
    linear-gradient(135deg, #071426 0%, #10223e 68%, #071426 100%);
  color: #fff;
}

.mail-test-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .2;
  background-image:
    linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 56px 56px;
}

.mail-test-hero .wrap {
  position: relative;
  z-index: 1;
  max-width: 1120px;
}

.mail-test-hero h1 {
  max-width: 920px;
  margin: 14px 0 22px;
  color: #fff;
  font-size: clamp(46px, 6vw, 82px);
  line-height: .97;
  letter-spacing: -.06em;
}

.mail-test-hero p {
  max-width: 900px;
  margin: 0;
  color: #cbd6e7;
  font-size: 19px;
  line-height: 1.7;
}

.mail-test-hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.mail-test-hero-proof span {
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: rgba(255,255,255,.07);
  color: #f4f7fb;
  font-size: 12px;
  font-weight: 800;
}

.mail-test-workflow {
  padding: 100px 0;
}

.mail-test-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 36px;
}

.mail-test-section-head h2,
.mail-test-options-head h2 {
  max-width: 820px;
  margin: 10px 0 0;
  font-size: clamp(36px, 4.6vw, 64px);
  line-height: 1.02;
  letter-spacing: -.055em;
}

.mail-test-play {
  min-width: 88px;
  padding: 11px 16px;
  border: 1px solid #cad5e4;
  border-radius: 999px;
  background: #fff;
  color: var(--mt-ink);
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.mail-test-play:hover,
.mail-test-play:focus-visible {
  border-color: var(--mt-orange);
  outline: none;
  color: var(--mt-orange);
}

.mail-flow {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 18px;
}

.mail-flow-nav {
  display: grid;
  gap: 10px;
}

.mail-flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: auto auto;
  gap: 2px 12px;
  min-height: 82px;
  padding: 16px;
  border: 1px solid #d7e0ec;
  border-radius: 18px;
  background: #fff;
  color: var(--mt-ink);
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.mail-flow-step:hover {
  transform: translateY(-2px);
  border-color: #aebcd0;
}

.mail-flow-step:focus-visible {
  outline: 3px solid rgba(255,107,18,.25);
  outline-offset: 2px;
}

.mail-flow-step b {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #eaf0f7;
  color: #67778d;
  font-size: 11px;
}

.mail-flow-step strong {
  align-self: end;
  font-size: 14px;
}

.mail-flow-step span {
  color: var(--mt-muted);
  font-size: 10px;
  line-height: 1.45;
}

.mail-flow-step[aria-selected="true"] {
  border-color: var(--mt-orange);
  background: #fff8f3;
}

.mail-flow-step[aria-selected="true"] b {
  background: var(--mt-orange);
  color: #fff;
}

.mail-flow-stage {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border-radius: 30px;
  background:
    radial-gradient(circle at 82% 0%, rgba(255,107,18,.13), transparent 35%),
    var(--mt-navy);
  box-shadow: 0 28px 70px rgba(8,22,43,.15);
}

.mail-flow-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .14;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 48px 48px;
}

.mail-flow-frame {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(320px, .9fr) minmax(330px, 1fr);
  align-items: center;
  gap: 46px;
  padding: 48px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(22px);
  transition: opacity .35s ease, transform .35s ease, visibility .35s;
}

.mail-flow-frame.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.mail-flow-phone {
  width: min(100%, 350px);
  min-height: 560px;
  margin: 0 auto;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 34px;
  background: #e9eef6;
  box-shadow: 0 24px 55px rgba(0,0,0,.35);
}

.mail-flow-phone--wide {
  width: min(100%, 430px);
}

.mail-lead-ui,
.mail-address-ui,
.mail-format-ui,
.mail-creative-ui,
.mail-proof-ui,
.mail-send-ui,
.mail-track-ui {
  position: relative;
  min-height: 540px;
  overflow: hidden;
  border-radius: 26px;
  background: #fff;
}

.mail-address-signal {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 15px 18px 8px;
  padding: 11px 13px;
  border-radius: 13px;
  background: #fff3ea;
  color: #9a3f08;
}

.mail-address-signal i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mt-orange);
  box-shadow: 0 0 0 5px rgba(255,107,18,.14);
}

.mail-address-signal div {
  display: grid;
  gap: 2px;
}

.mail-address-signal small {
  font-size: 7px;
  font-weight: 900;
  letter-spacing: .11em;
}

.mail-address-signal strong {
  font-size: 10px;
}

.mail-address-card {
  position: relative;
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 10px;
  margin: 11px 18px;
  padding: 15px 13px;
  border: 1px solid var(--mt-line);
  border-radius: 15px;
}

.mail-address-radio {
  width: 18px;
  height: 18px;
  border: 2px solid #c6d1df;
  border-radius: 50%;
}

.mail-address-card div {
  display: grid;
  gap: 2px;
}

.mail-address-card small {
  color: var(--mt-muted);
  font-size: 7px;
  font-weight: 900;
  letter-spacing: .08em;
}

.mail-address-card strong {
  font-size: 11px;
}

.mail-address-card div span {
  color: var(--mt-muted);
  font-size: 9px;
}

.mail-address-card em {
  padding: 5px 7px;
  border-radius: 999px;
  background: #eef3f8;
  color: #617087;
  font-size: 7px;
  font-style: normal;
  font-weight: 900;
}

.mail-address-card.is-selected {
  border: 2px solid var(--mt-orange);
  background: #fffaf6;
}

.mail-address-card.is-selected .mail-address-radio {
  border: 5px solid var(--mt-orange);
}

.mail-address-card.is-selected em {
  background: #ffeadb;
  color: #a74308;
}

.mail-address-note {
  display: grid;
  gap: 4px;
  margin: 15px 18px 0;
  padding: 13px;
  border-left: 3px solid var(--mt-navy);
  background: #f2f5f9;
}

.mail-address-note strong {
  font-size: 10px;
}

.mail-address-note span {
  color: var(--mt-muted);
  font-size: 8px;
  line-height: 1.45;
}

.mail-ui-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 64px;
  border-bottom: 1px solid var(--mt-line);
  font-size: 14px;
}

.mail-ui-brand img {
  width: 25px;
  height: 25px;
}

.mail-ui-brand span {
  color: var(--mt-orange);
}

.mail-ui-kicker {
  padding: 18px 20px 10px;
  color: #47566b;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .14em;
}

.mail-ui-kicker i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--mt-orange);
}

.mail-lead-photo {
  height: 160px;
  margin: 0 18px;
  overflow: hidden;
  border-radius: 18px;
}

.mail-lead-photo img {
  width: 225%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
}

.mail-lead-address {
  display: grid;
  gap: 3px;
  padding: 16px 20px 12px;
}

.mail-lead-address strong {
  font-size: 20px;
  line-height: 1.1;
}

.mail-lead-address span {
  color: var(--mt-muted);
  font-size: 12px;
}

.mail-lead-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  padding: 0 18px 16px;
}

.mail-lead-stats span {
  display: grid;
  gap: 3px;
  padding: 9px 7px;
  border: 1px solid var(--mt-line);
  border-radius: 12px;
}

.mail-lead-stats small {
  color: var(--mt-muted);
  font-size: 7px;
  font-weight: 800;
  text-transform: uppercase;
}

.mail-lead-stats b {
  font-size: 11px;
}

.mail-lead-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  padding: 0 18px;
}

.mail-lead-actions span {
  display: grid;
  place-items: center;
  min-height: 56px;
  border: 1px solid var(--mt-line);
  border-radius: 14px;
  color: #41516a;
  font-size: 9px;
  font-weight: 900;
  text-transform: uppercase;
}

.mail-lead-actions .is-mail {
  border-color: #ffb480;
  background: #fff3ea;
  color: var(--mt-orange);
}

.mail-tap-ring {
  position: absolute;
  right: 18px;
  bottom: 47px;
  width: 72px;
  height: 72px;
  border: 8px solid rgba(255,107,18,.72);
  border-radius: 50%;
  box-shadow: 0 0 0 9px rgba(255,107,18,.13);
  animation: mailTap 1.35s ease-in-out infinite;
}

@keyframes mailTap {
  0%, 100% { transform: scale(.88); opacity: .72; }
  50% { transform: scale(1); opacity: 1; }
}

.mail-ui-head {
  display: grid;
  gap: 4px;
  padding: 24px 22px 18px;
  border-bottom: 1px solid var(--mt-line);
}

.mail-ui-head small {
  color: var(--mt-orange);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: .14em;
}

.mail-ui-head strong {
  font-size: 19px;
  line-height: 1.15;
}

.mail-ui-head span {
  color: var(--mt-muted);
  font-size: 10px;
}

.mail-format-card {
  position: relative;
  display: grid;
  gap: 5px;
  margin: 12px 18px;
  padding: 17px;
  border: 1px solid var(--mt-line);
  border-radius: 16px;
}

.mail-format-card b {
  font-size: 14px;
}

.mail-format-card span {
  color: var(--mt-muted);
  font-size: 10px;
}

.mail-format-card em {
  color: #7b899c;
  font-size: 8px;
  font-style: normal;
  font-weight: 700;
}

.mail-format-card.is-selected {
  border: 2px solid var(--mt-orange);
  background: #fff8f3;
}

.mail-format-card.is-selected::after {
  content: "✓";
  position: absolute;
  top: 12px;
  right: 12px;
  color: var(--mt-orange);
  font-weight: 900;
}

.mail-ui-continue {
  margin: 18px;
  padding: 13px;
  border-radius: 999px;
  background: var(--mt-orange);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  text-align: center;
}

.mail-creative-options {
  display: flex;
  gap: 7px;
  padding: 14px 18px 8px;
}

.mail-creative-options span,
.mail-creative-toolbar span {
  padding: 7px 9px;
  border: 1px solid var(--mt-line);
  border-radius: 999px;
  color: #56667b;
  font-size: 8px;
  font-weight: 800;
  white-space: nowrap;
}

.mail-creative-options .is-active {
  border-color: #ffb480;
  background: #fff3ea;
  color: var(--mt-orange);
}

.mail-postcard-stack {
  position: relative;
  height: 320px;
  margin: 4px 16px 0;
}

.mail-postcard-front,
.mail-postcard-back {
  position: absolute;
  width: 86%;
  overflow: hidden;
  border: 5px solid #fff;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 14px 35px rgba(8,22,43,.24);
}

.mail-postcard-front {
  top: 12px;
  left: 2px;
  transform: rotate(-2deg);
}

.mail-postcard-back {
  right: 0;
  bottom: 6px;
  transform: rotate(2deg);
}

.mail-postcard-front img,
.mail-postcard-back img {
  display: block;
  width: 100%;
  aspect-ratio: 1.475;
  object-fit: cover;
}

.mail-postcard-front i,
.mail-postcard-back i {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--mt-navy);
  color: #fff;
  font-size: 6px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mail-creative-toolbar {
  display: flex;
  gap: 5px;
  overflow: hidden;
  padding: 5px 16px 15px;
}

.mail-proof-layout {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 12px;
  padding: 16px;
}

.mail-proof-card {
  display: grid;
  gap: 9px;
}

.mail-proof-card div {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--mt-line);
  border-radius: 10px;
}

.mail-proof-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1.475;
  object-fit: cover;
}

.mail-proof-card small {
  position: absolute;
  left: 6px;
  bottom: 6px;
  padding: 3px 6px;
  border-radius: 999px;
  background: var(--mt-navy);
  color: #fff;
  font-size: 6px;
  font-weight: 900;
  text-transform: uppercase;
}

.mail-proof-summary {
  display: grid;
  gap: 8px;
}

.mail-proof-summary span {
  display: grid;
  gap: 3px;
  padding: 9px;
  border: 1px solid var(--mt-line);
  border-radius: 10px;
}

.mail-proof-summary small {
  color: var(--mt-muted);
  font-size: 7px;
  font-weight: 800;
  text-transform: uppercase;
}

.mail-proof-summary b {
  font-size: 9px;
  line-height: 1.25;
}

.mail-send-ui {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 46px 26px 24px;
  text-align: center;
}

.mail-send-check {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: #e7f8ef;
  color: #149455;
  font-size: 26px;
  font-weight: 900;
}

.mail-send-ui > small {
  color: var(--mt-orange);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: .14em;
}

.mail-send-ui h4 {
  margin: 8px 0 24px;
  font-size: 20px;
  line-height: 1.2;
}

.mail-send-line,
.mail-send-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid var(--mt-line);
  font-size: 10px;
  text-align: left;
}

.mail-send-total {
  margin-top: 5px;
  border-bottom: 0;
  font-size: 13px;
}

.mail-send-total strong {
  color: var(--mt-orange);
  font-size: 22px;
}

.mail-send-button {
  margin-top: 18px;
  padding: 15px;
  border-radius: 999px;
  background: var(--mt-orange);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
}

.mail-send-ui p {
  margin: 16px 0 0;
  color: var(--mt-muted);
  font-size: 8px;
  line-height: 1.5;
}

.mail-track-ui {
  padding-bottom: 14px;
}

.mail-track-event {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  margin: 12px 16px;
  padding: 14px;
  border: 1px solid var(--mt-line);
  border-radius: 14px;
}

.mail-track-event > b {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #eef3f8;
  color: #65748a;
  font-size: 9px;
}

.mail-track-event div {
  display: grid;
  gap: 3px;
}

.mail-track-event div strong {
  font-size: 11px;
}

.mail-track-event div span {
  color: var(--mt-muted);
  font-size: 8px;
}

.mail-track-event em {
  padding: 5px 7px;
  border-radius: 999px;
  background: #eef3f8;
  color: #627188;
  font-size: 7px;
  font-style: normal;
  font-weight: 900;
}

.mail-track-event.is-push {
  border-color: #ffcfad;
  background: #fff8f3;
}

.mail-track-event.is-push > b {
  background: #ffede0;
  color: var(--mt-orange);
}

.mail-track-event.is-request {
  border-color: #a9dec3;
  background: #f0fbf5;
}

.mail-track-event.is-request > b {
  background: #dff5e9;
  color: #159257;
}

.mail-track-return {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 16px 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--mt-navy);
  color: #fff;
}

.mail-track-return img {
  width: 38px;
  height: 38px;
}

.mail-track-return div {
  display: grid;
  gap: 2px;
}

.mail-track-return small {
  color: #ff9a56;
  font-size: 7px;
  font-weight: 900;
  letter-spacing: .12em;
}

.mail-track-return strong {
  font-size: 10px;
}

.mail-track-return span {
  color: #aebbd0;
  font-size: 8px;
}

.mail-flow-copy {
  color: #fff;
}

.mail-flow-copy > small {
  color: var(--mt-orange);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.mail-flow-copy h3 {
  margin: 12px 0 16px;
  color: #fff;
  font-size: clamp(34px, 3.5vw, 54px);
  line-height: 1.02;
  letter-spacing: -.055em;
}

.mail-flow-copy p {
  margin: 0;
  color: #bac6d8;
  font-size: 15px;
  line-height: 1.65;
}

.mail-flow-copy p strong {
  color: #fff;
}

.mail-flow-proof {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.mail-flow-proof span {
  position: relative;
  padding-left: 20px;
  color: #edf2f8;
  font-size: 11px;
  font-weight: 700;
}

.mail-flow-proof span::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mt-orange);
  box-shadow: 0 0 0 5px rgba(255,107,18,.14);
}

.mail-flow-progress {
  position: absolute;
  z-index: 2;
  right: 36px;
  bottom: 20px;
  left: 36px;
  height: 2px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,.15);
}

.mail-flow-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--mt-orange);
}

.mail-flow.is-playing .mail-flow-progress i {
  animation: mailProgress 5.8s linear forwards;
}

@keyframes mailProgress {
  from { width: 0; }
  to { width: 100%; }
}

.mail-test-options {
  padding: 0 0 100px;
}

.mail-test-options-head {
  max-width: 900px;
  margin-bottom: 34px;
}

.mail-test-option-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.mail-test-option-grid article {
  min-height: 250px;
  padding: 30px;
  border: 1px solid #dce4ef;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(8,22,43,.06);
}

.mail-test-option-grid article span {
  color: var(--mt-orange);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .14em;
}

.mail-test-option-grid h3 {
  margin: 18px 0 12px;
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: -.04em;
}

.mail-test-option-grid p {
  margin: 0;
  color: var(--mt-muted);
  font-size: 14px;
  line-height: 1.6;
}

.mail-flow-stage {
  min-height: 910px;
}

.mail-flow-frame {
  grid-template-columns: minmax(380px, 1.12fr) minmax(300px, .88fr);
  gap: 34px;
  padding: 38px;
}

.mail-real-shot {
  position: relative;
  display: grid;
  align-content: center;
  min-width: 0;
  margin: 0;
  padding: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 24px;
  background: rgba(244,247,251,.96);
  box-shadow: 0 24px 55px rgba(0,0,0,.28);
}

.mail-real-shot img {
  display: block;
  width: 100%;
  max-height: 690px;
  object-fit: contain;
  border-radius: 16px;
}

.mail-real-shot figcaption,
.mail-intent-grid figcaption,
.mail-intent-events figcaption {
  padding: 9px 4px 2px;
  color: #65738a;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .07em;
  text-align: center;
  text-transform: uppercase;
}

.mail-real-shot--phone {
  width: min(100%, 390px);
  margin: 0 auto;
}

.mail-real-shot--postcard img {
  max-height: 620px;
}

.mail-real-shot--activity img {
  max-height: 240px;
}

.mail-real-grid {
  display: grid;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.mail-real-grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mail-real-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mail-real-grid--3 .mail-real-shot {
  padding: 6px;
  border-radius: 18px;
}

.mail-real-grid--3 .mail-real-shot img {
  max-height: 640px;
  border-radius: 12px;
}

.mail-real-stack {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: 12px;
}

.mail-screen-deck {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 12px;
  width: 100%;
  max-width: 430px;
  min-width: 0;
  margin: 0 auto;
}

.mail-screen-stage {
  position: relative;
  height: 650px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 24px;
  background: rgba(248,250,253,.98);
  box-shadow: 0 24px 60px rgba(0,0,0,.28);
}

.mail-screen-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  padding: 10px;
  border: 0;
  background: transparent;
  opacity: 0;
  visibility: hidden;
  transform: translateX(14px);
  transition: opacity .28s ease, transform .28s ease, visibility .28s;
  cursor: zoom-in;
}

.mail-screen-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.mail-flow-frame:not(.is-active) .mail-screen-slide {
  visibility: hidden;
  pointer-events: none;
}

.mail-flow-frame.is-active .mail-screen-slide.is-active {
  visibility: visible;
  pointer-events: auto;
}

.mail-screen-slide:focus-visible {
  outline: 3px solid var(--mt-orange);
  outline-offset: -5px;
}

.mail-screen-slide img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  border-radius: 15px;
}

.mail-screen-slide > span {
  padding: 8px 88px 2px 4px;
  overflow: hidden;
  color: #647188;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: .08em;
  text-align: left;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.mail-screen-slide > i {
  position: absolute;
  right: 15px;
  bottom: 12px;
  padding: 6px 8px;
  border-radius: 999px;
  background: var(--mt-navy);
  color: #fff;
  font-size: 8px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.mail-screen-switcher {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.mail-screen-switcher--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mail-screen-switcher button {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 8px 10px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 13px;
  background: rgba(255,255,255,.07);
  color: #c7d2e2;
  text-align: left;
  cursor: pointer;
}

.mail-screen-switcher button:hover,
.mail-screen-switcher button:focus-visible {
  border-color: rgba(255,107,18,.8);
  outline: none;
}

.mail-screen-switcher button[aria-pressed="true"] {
  border-color: var(--mt-orange);
  background: rgba(255,107,18,.14);
  color: #fff;
}

.mail-screen-switcher b {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #9eadc2;
  font-size: 8px;
}

.mail-screen-switcher button[aria-pressed="true"] b {
  background: var(--mt-orange);
  color: #fff;
}

.mail-screen-switcher span {
  overflow: hidden;
  font-size: 8px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-preview {
  width: min(1100px, calc(100vw - 30px));
  max-width: none;
  max-height: calc(100vh - 30px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid #dce4ef;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 35px 100px rgba(0,0,0,.42);
}

.mail-preview::backdrop {
  background: rgba(3,10,20,.82);
  backdrop-filter: blur(8px);
}

.mail-preview-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  max-height: calc(100vh - 30px);
}

.mail-preview header,
.mail-preview footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  background: var(--mt-navy);
  color: #fff;
}

.mail-preview header div {
  display: grid;
  gap: 2px;
}

.mail-preview header small {
  color: #ff9a56;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: .12em;
}

.mail-preview header strong {
  font-size: 18px;
  font-weight: 800;
}

.mail-preview header button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}

.mail-preview figure {
  display: grid;
  place-items: center;
  min-height: 0;
  margin: 0;
  padding: 22px;
  overflow: auto;
  background: #eef2f7;
}

.mail-preview figure img {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 190px);
  object-fit: contain;
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(7,20,38,.18);
}

.mail-preview footer {
  justify-content: center;
}

.mail-preview footer button {
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px;
  background: transparent;
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  cursor: pointer;
}

.mail-preview footer span {
  min-width: 70px;
  color: #aebbd0;
  font-size: 10px;
  text-align: center;
}

.mail-test-options-head p {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--mt-muted);
  font-size: 16px;
  line-height: 1.7;
}

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

.mail-test-format-card {
  overflow: hidden;
  border: 1px solid #dce4ef;
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(8,22,43,.08);
}

.mail-test-format-card figure {
  height: 310px;
  margin: 0 0 24px;
  padding: 12px;
  overflow: hidden;
  background: #0a172a;
}

.mail-test-format-card figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 14px;
}

.mail-test-format-card > span,
.mail-test-format-card h3,
.mail-test-format-card p {
  display: block;
  margin-right: 26px;
  margin-left: 26px;
}

.mail-test-format-card > span {
  color: var(--mt-orange);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .14em;
}

.mail-test-format-card h3 {
  margin-top: 12px;
  margin-bottom: 10px;
  font-size: 27px;
  line-height: 1.05;
  letter-spacing: -.04em;
}

.mail-test-format-card p {
  margin-top: 0;
  margin-bottom: 28px;
  color: var(--mt-muted);
  font-size: 13px;
  line-height: 1.65;
}

.mail-template-library,
.mail-letter-library,
.mail-intent-proof {
  padding: 100px 0;
}

.mail-template-library {
  background: #fff;
}

.mail-template-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.mail-template-card {
  padding: 22px;
  border: 1px solid #dce4ef;
  border-radius: 26px;
  background: #f8fafc;
}

.mail-template-card h3 {
  margin: 0 0 16px;
  font-size: 22px;
  letter-spacing: -.035em;
}

.mail-template-pair {
  display: grid;
  gap: 12px;
}

.mail-template-pair img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: contain;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(8,22,43,.09);
}

.mail-letter-library {
  background: #0a172a;
  color: #fff;
}

.mail-letter-library .mail-test-options-head h2 {
  color: #fff;
}

.mail-letter-library .mail-test-options-head p {
  color: #b8c4d6;
}

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

.mail-letter-card {
  position: relative;
  margin: 0;
  padding: 42px 12px 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 22px;
  background: rgba(255,255,255,.08);
}

.mail-letter-card span {
  position: absolute;
  top: 14px;
  left: 16px;
  color: #ff9b58;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mail-letter-card img {
  width: 100%;
  height: 500px;
  object-fit: contain;
  border-radius: 13px;
  background: #fff;
}

.mail-intent-proof {
  background: #eef3f9;
}

.mail-intent-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: 22px;
}

.mail-intent-page,
.mail-intent-events figure {
  margin: 0;
  padding: 14px;
  border: 1px solid #dce4ef;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(8,22,43,.08);
}

.mail-intent-page img,
.mail-intent-events img {
  display: block;
  width: 100%;
  object-fit: contain;
  border-radius: 15px;
}

.mail-intent-page img {
  max-height: 760px;
}

.mail-intent-page--mobile {
  width: min(100%, 440px);
  justify-self: center;
}

.mail-intent-events {
  display: grid;
  gap: 22px;
}

.mail-intent-events img {
  max-height: 360px;
}

.mail-test-approval {
  padding: 0 0 90px;
}

.mail-test-approval .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 50px;
  border-radius: 28px;
  background: var(--mt-navy);
  color: #fff;
}

.mail-test-approval span {
  color: var(--mt-orange);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.mail-test-approval h2 {
  margin: 10px 0 8px;
  color: #fff;
  font-size: 38px;
  line-height: 1.05;
  letter-spacing: -.045em;
}

.mail-test-approval p {
  max-width: 720px;
  margin: 0;
  color: #b9c5d6;
  line-height: 1.6;
}

.mail-test-page footer.site {
  padding-top: 30px;
}

@media (max-width: 1060px) {
  .mail-flow {
    grid-template-columns: 1fr;
  }

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

  .mail-flow-step {
    min-height: 76px;
  }

  .mail-flow-stage {
    min-height: 940px;
  }

  .mail-test-format-card figure {
    height: 260px;
  }

  .mail-letter-card img {
    height: 420px;
  }
}

@media (max-width: 820px) {
  .mail-test-nav-label,
  .mail-test-back {
    display: none;
  }

  .mail-test-hero {
    padding: 68px 0 58px;
  }

  .mail-test-workflow {
    padding: 70px 0;
  }

  .mail-test-section-head {
    align-items: flex-start;
  }

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

  .mail-flow-step {
    grid-template-columns: 32px 1fr;
    min-height: 76px;
    padding: 12px;
  }

  .mail-flow-step b {
    width: 32px;
    height: 32px;
  }

  .mail-flow-stage {
    min-height: 1280px;
  }

  .mail-flow-frame {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 34px;
    padding: 34px 24px 52px;
  }

  .mail-flow-phone,
  .mail-flow-phone--wide {
    width: min(100%, 420px);
  }

  .mail-flow-copy {
    max-width: 600px;
    margin: 0 auto;
  }

  .mail-screen-deck {
    max-width: 520px;
  }

  .mail-test-option-grid {
    grid-template-columns: 1fr;
  }

  .mail-test-option-grid article {
    min-height: 0;
  }

  .mail-real-grid--3 {
    grid-template-columns: repeat(3, minmax(150px, 1fr));
    overflow-x: auto;
  }

  .mail-test-format-grid,
  .mail-letter-grid {
    grid-template-columns: 1fr;
  }

  .mail-test-format-card figure {
    height: 420px;
  }

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

  .mail-letter-card img {
    height: min(760px, 110vw);
  }

  .mail-intent-grid {
    grid-template-columns: 1fr;
  }

  .mail-test-approval .wrap {
    display: grid;
    padding: 36px 28px;
  }
}

@media (max-width: 540px) {
  .mail-test-notice {
    align-items: flex-start;
    gap: 7px;
    padding: 7px 12px;
    font-size: 9px;
  }

  .mail-test-notice span {
    flex: 0 0 auto;
    font-size: 7px;
  }

  .mail-test-hero h1 {
    font-size: 43px;
  }

  .mail-test-hero p {
    font-size: 15px;
    line-height: 1.6;
  }

  .mail-test-section-head {
    display: grid;
  }

  .mail-test-section-head h2,
  .mail-test-options-head h2 {
    font-size: 38px;
  }

  .mail-test-play {
    width: max-content;
  }

  .mail-flow-nav {
    display: flex;
    gap: 8px;
    margin: 0 -20px;
    padding: 0 20px 4px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .mail-flow-step {
    flex: 0 0 180px;
    scroll-snap-align: start;
  }

  .mail-flow-stage {
    min-height: 1240px;
    margin: 0 -12px;
    border-radius: 24px;
  }

  .mail-flow-frame {
    padding: 24px 12px 50px;
  }

  .mail-flow-phone,
  .mail-flow-phone--wide {
    min-height: 530px;
    border-radius: 30px;
  }

  .mail-flow-copy {
    padding: 0 10px;
  }

  .mail-flow-copy h3 {
    font-size: 36px;
  }

  .mail-flow-copy p {
    font-size: 13px;
  }

  .mail-screen-stage {
    height: 560px;
  }

  .mail-screen-switcher {
    display: flex;
    gap: 8px;
    padding-bottom: 4px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .mail-screen-switcher button {
    flex: 0 0 155px;
    scroll-snap-align: start;
  }

  .mail-real-grid--2,
  .mail-real-stack {
    grid-template-columns: repeat(2, minmax(190px, 1fr));
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .mail-real-grid--2 .mail-real-shot,
  .mail-real-stack .mail-real-shot {
    scroll-snap-align: start;
  }

  .mail-real-grid--3 {
    grid-template-columns: repeat(3, minmax(180px, 1fr));
  }

  .mail-real-shot img,
  .mail-real-grid--3 .mail-real-shot img {
    max-height: 650px;
  }

  .mail-test-format-card figure {
    height: 330px;
  }

  .mail-template-library,
  .mail-letter-library,
  .mail-intent-proof {
    padding: 70px 0;
  }

  .mail-template-card {
    padding: 14px;
  }

  .mail-letter-card img {
    height: 132vw;
    max-height: 700px;
  }

  .mail-flow-progress {
    right: 22px;
    left: 22px;
  }

  .mail-test-approval h2 {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mail-flow-frame,
  .mail-flow-step,
  .mail-screen-slide {
    transition: none;
  }

  .mail-tap-ring,
  .mail-flow.is-playing .mail-flow-progress i {
    animation: none;
  }
}