@font-face {
  font-family: "Qixi Brush";
  src: url("assets/fonts/MaShanZheng-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #eee5d5;
  --paper-light: #f8f0df;
  --paper-deep: #d9c5a8;
  --ink: #27211d;
  --muted: #746355;
  --cinnabar: #a63a32;
  --cinnabar-dark: #7f2924;
  --blue-green: #476f70;
  --ochre: #b9853f;
  --accent: #2adb5c;
  --accent-light: #52e77d;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "SimSun", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "楷体", serif;
  --brush: "Qixi Brush", "Ma Shan Zheng", "Kaiti SC", "STKaiti", "KaiTi", "楷体", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 12%, rgba(166, 58, 50, 0.055) 0 1px, transparent 1.8px),
    radial-gradient(circle at 81% 68%, rgba(71, 111, 112, 0.05) 0 1.2px, transparent 2px),
    linear-gradient(120deg, rgba(255, 255, 255, 0.28), transparent 38%),
    var(--paper);
  background-size: 25px 23px, 31px 29px, auto, auto;
  color: var(--ink);
  font-family: var(--sans);
}

button,
textarea,
input {
  font: inherit;
}

button {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border: 2px solid var(--ink);
  background: var(--accent);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 16px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(39, 33, 29, 0.19);
  background: rgba(247, 240, 226, 0.76);
  backdrop-filter: blur(14px);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-logo {
  width: 106px;
  height: auto;
}

.brand-divider {
  width: 1px;
  height: 24px;
  background: rgba(39, 33, 29, 0.32);
}

.postcard-stage {
  width: min(100% - 32px, 1240px);
  margin: 0 auto;
  padding: clamp(42px, 7vw, 88px) 0 64px;
}

.stage-heading {
  max-width: 760px;
  margin-bottom: clamp(16px, 3vw, 32px);
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--cinnabar-dark);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stage-heading h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.stage-heading h1 span {
  display: inline-block;
  color: var(--cinnabar-dark);
}

.stage-heading > p:last-child {
  max-width: 48ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.75;
}

.postcard-workbench {
  position: relative;
  display: grid;
  justify-items: center;
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid rgba(39, 33, 29, 0.22);
  background:
    linear-gradient(135deg, rgba(71, 111, 112, 0.1), transparent 32%),
    linear-gradient(315deg, rgba(166, 58, 50, 0.08), transparent 37%),
    rgba(248, 240, 223, 0.62);
  box-shadow: 0 28px 70px rgba(72, 48, 34, 0.12);
}

.postcard-workbench::before,
.postcard-workbench::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.postcard-workbench::before {
  inset: 14px;
  border: 1px dashed rgba(166, 58, 50, 0.25);
}

.postcard-workbench::after {
  top: -17px;
  right: clamp(38px, 9vw, 132px);
  width: 112px;
  height: 34px;
  background: rgba(222, 196, 148, 0.62);
  box-shadow: 0 1px 4px rgba(72, 48, 34, 0.12);
  transform: rotate(2.5deg);
}

.postcard-shadow {
  position: absolute;
  z-index: 0;
  top: 51%;
  left: 50%;
  width: min(74%, 860px);
  height: 22%;
  border-radius: 50%;
  background: rgba(64, 42, 31, 0.23);
  filter: blur(28px);
  transform: translate(-50%, -10%);
}

.postcard-toggle {
  position: relative;
  z-index: 1;
  width: min(100%, 1040px);
  aspect-ratio: 3 / 2;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  perspective: 1800px;
  -webkit-tap-highlight-color: transparent;
}

.postcard-toggle:focus-visible {
  outline: 4px solid rgba(42, 219, 92, 0.88);
  outline-offset: 8px;
}

.postcard-card {
  position: absolute;
  inset: 0;
  display: block;
  transform-style: preserve-3d;
  transition: transform 760ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

.postcard-toggle[aria-pressed="true"] .postcard-card {
  transform: rotateY(180deg);
}

.postcard-face {
  position: absolute;
  inset: 0;
  display: block;
  overflow: hidden;
  border: 1px solid rgba(64, 43, 31, 0.3);
  border-radius: 4px;
  backface-visibility: hidden;
  box-shadow: 0 18px 46px rgba(63, 41, 30, 0.22);
}

.postcard-front {
  background: var(--paper-light);
}

.postcard-art {
  position: absolute;
  z-index: 1;
  top: 9.4%;
  left: 4.4%;
  width: 91.2%;
  height: 73.8%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.92) contrast(1.03);
}

.front-window {
  position: absolute;
  z-index: 2;
  inset: 9.4% 4.4% 16.8% 4.4%;
  display: block;
  border: 1px solid rgba(54, 39, 30, 0.32);
  box-shadow: 2px 2px 0 rgba(166, 58, 50, 0.28);
  pointer-events: none;
}

.front-marks {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: block;
  pointer-events: none;
}

.front-marks i {
  position: absolute;
  display: block;
  width: clamp(8px, 1.15vw, 14px);
  height: clamp(8px, 1.15vw, 14px);
}

.front-marks i:nth-child(1) {
  top: 9.4%;
  left: 4.4%;
  border-top: 1.5px solid rgba(166, 58, 50, 0.72);
  border-left: 1.5px solid rgba(166, 58, 50, 0.72);
  transform: translate(-42%, -42%);
}

.front-marks i:nth-child(2) {
  top: 9.4%;
  right: 4.4%;
  border-top: 1.5px solid rgba(166, 58, 50, 0.72);
  border-right: 1.5px solid rgba(166, 58, 50, 0.72);
  transform: translate(42%, -42%);
}

.front-marks i:nth-child(3) {
  bottom: 16.8%;
  left: 4.4%;
  border-bottom: 1.5px solid rgba(166, 58, 50, 0.72);
  border-left: 1.5px solid rgba(166, 58, 50, 0.72);
  transform: translate(-42%, 42%);
}

.front-marks i:nth-child(4) {
  bottom: 16.8%;
  right: 4.4%;
  border-bottom: 1.5px solid rgba(166, 58, 50, 0.72);
  border-right: 1.5px solid rgba(166, 58, 50, 0.72);
  transform: translate(42%, 42%);
}

.front-kicker,
.front-caption,
.front-serial,
.front-seal {
  position: absolute;
  z-index: 3;
  display: block;
}

.front-kicker {
  top: 1.9%;
  left: 4.8%;
  color: var(--cinnabar-dark);
  text-align: left;
  line-height: 1;
}

.front-kicker b,
.front-kicker small,
.front-caption b,
.front-caption small {
  display: block;
}

.front-kicker b {
  font-family: var(--kai);
  font-size: clamp(11px, 1.35vw, 16px);
  font-weight: 500;
  letter-spacing: 0.18em;
}

.front-kicker small {
  margin-top: 3px;
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(7px, 0.78vw, 9px);
  font-weight: 700;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.front-serial {
  top: 2.6%;
  right: 4.8%;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(7px, 0.82vw, 10px);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.front-caption {
  left: 4.8%;
  bottom: 2.8%;
  width: 62%;
  padding-top: 1.5%;
  border-top: 1px solid rgba(166, 58, 50, 0.35);
  color: var(--ink);
  text-align: left;
}

.front-caption b {
  font-family: var(--serif);
  font-size: clamp(15px, 2.1vw, 28px);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.front-caption small {
  margin-top: 4px;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(7px, 0.88vw, 11px);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.front-seal {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  place-items: center;
  width: clamp(42px, 6.8vw, 78px);
  aspect-ratio: 1;
  border: clamp(2px, 0.25vw, 3px) solid currentColor;
  color: #b9332d;
  font-family: var(--kai);
  font-size: clamp(11px, 1.6vw, 19px);
  line-height: 1;
}

.back-publisher-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: clamp(38px, 5.6vw, 56px);
  padding: 0.22em 0.46em 0.18em;
  border: clamp(1.5px, 0.2vw, 2px) solid currentColor;
  color: rgba(166, 58, 50, 0.62);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(6px, 0.82vw, 9px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  opacity: 0.72;
}

.front-seal {
  right: 5.2%;
  bottom: 3.4%;
  color: var(--cinnabar);
  transform: rotate(-4deg);
}

.front-seal i {
  font-style: normal;
}

.postcard-back {
  display: grid;
  grid-template-columns: 58% 42%;
  background:
    radial-gradient(circle at 20% 14%, rgba(166, 58, 50, 0.055) 0 1px, transparent 1.6px),
    radial-gradient(circle at 76% 62%, rgba(71, 111, 112, 0.05) 0 1px, transparent 1.7px),
    var(--paper-light);
  background-size: 21px 19px, 27px 25px, auto;
  transform: rotateY(180deg);
}

.paper-fibres {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0.35;
  background:
    repeating-linear-gradient(7deg, transparent 0 8px, rgba(105, 78, 56, 0.055) 9px, transparent 10px),
    repeating-linear-gradient(87deg, transparent 0 18px, rgba(105, 78, 56, 0.035) 19px, transparent 20px);
  mix-blend-mode: multiply;
}

.back-border {
  position: absolute;
  inset: 3.4%;
  z-index: 1;
  display: block;
  border: 2px solid rgba(166, 58, 50, 0.74);
  box-shadow: 4px 3px 0 rgba(166, 58, 50, 0.12);
}

.back-divider {
  position: absolute;
  z-index: 2;
  top: 8.5%;
  bottom: 8.5%;
  left: 62%;
  display: block;
  width: 2px;
  background: rgba(166, 58, 50, 0.72);
}

.back-message-column,
.back-route-column {
  position: relative;
  z-index: 3;
  display: flex;
  min-width: 0;
  text-align: left;
}

.back-message-column {
  flex-direction: column;
  padding: 16% 8% 8% 9%;
}

.back-salutation {
  display: block;
  color: var(--cinnabar-dark);
  font-family: var(--brush);
  font-size: clamp(18px, 3.1vw, 38px);
  font-synthesis: none;
  letter-spacing: 0.06em;
  line-height: 1.1;
}

.back-salutation b {
  font: inherit;
}

.back-message {
  display: -webkit-box;
  margin: clamp(12px, 2.2vw, 28px) 0 0;
  overflow: hidden;
  color: #2c2520;
  font-family: var(--serif);
  font-size: clamp(12px, 2vw, 25px);
  font-weight: 500;
  letter-spacing: 0.055em;
  line-height: 1.8;
  white-space: pre-line;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 6;
}

.back-signoff {
  margin-top: auto;
  align-self: flex-end;
  display: flex;
  align-items: flex-end;
  gap: clamp(8px, 1.4vw, 18px);
  color: var(--cinnabar-dark);
}

.back-signoff small {
  padding-bottom: 0.28em;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(7px, 0.9vw, 11px);
  letter-spacing: 0.1em;
}

.back-signoff b {
  max-width: 100%;
  overflow: hidden;
  font-family: var(--brush);
  font-size: clamp(18px, 2.8vw, 34px);
  font-weight: 400;
  font-synthesis: none;
  letter-spacing: 0.07em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.back-route-column {
  flex-direction: column;
  padding: 9% 9% 9% 14%;
}

.postage-cluster {
  position: absolute;
  top: 6%;
  right: 5%;
  width: 62%;
  aspect-ratio: 1.08;
  pointer-events: none;
}

.postage-stamp {
  position: absolute;
  top: 0;
  right: 0;
  display: block;
  width: 74%;
  height: auto;
  object-fit: contain;
  transform: rotate(1.5deg);
  filter: drop-shadow(1px 2px 1px rgba(64, 42, 31, 0.16));
}

.postal-mark {
  position: absolute;
  z-index: 5;
  top: 48%;
  left: 0;
  display: flex;
  align-items: center;
  color: rgba(166, 58, 50, 0.72);
  transform: rotate(-8deg);
}

.postal-ring {
  position: relative;
  display: grid;
  place-items: center;
  width: clamp(48px, 7.2vw, 82px);
  aspect-ratio: 1;
  border: clamp(2px, 0.25vw, 3px) solid currentColor;
  border-radius: 50%;
  font-family: var(--kai);
  line-height: 1;
}

.postal-ring::after {
  content: "";
  position: absolute;
  width: 82%;
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.postal-ring b,
.postal-ring i,
.postal-ring em {
  position: relative;
  z-index: 1;
  font-style: normal;
}

.postal-ring b {
  font-size: clamp(7px, 1vw, 12px);
  letter-spacing: 0.18em;
}

.postal-ring i,
.postal-ring em {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(5px, 0.65vw, 8px);
}

.postal-waves {
  display: grid;
  gap: clamp(3px, 0.45vw, 5px);
  width: clamp(54px, 9vw, 104px);
  margin-left: -3px;
}

.postal-waves i {
  display: block;
  height: 2px;
  border-radius: 50%;
  background: currentColor;
  transform: skewX(-18deg);
}

.route-copy {
  display: grid;
  gap: clamp(8px, 1.4vw, 16px);
  padding-top: 76%;
}

.route-copy small {
  color: var(--cinnabar-dark);
  font-family: var(--kai);
  font-size: clamp(8px, 1vw, 12px);
  letter-spacing: 0.24em;
}

.route-copy b {
  font-family: var(--brush);
  font-size: clamp(15px, 2.25vw, 27px);
  font-weight: 400;
  font-synthesis: none;
  letter-spacing: 0.12em;
}

.route-copy i {
  display: block;
  height: 1px;
  background: rgba(166, 58, 50, 0.38);
}

.route-meta {
  display: grid;
  gap: 5px;
  margin-top: auto;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(6px, 0.8vw, 10px);
  letter-spacing: 0.08em;
}

.back-side-note {
  position: absolute;
  z-index: 3;
  top: 9%;
  left: 2.1%;
  display: block;
  color: rgba(166, 58, 50, 0.58);
  font-family: var(--kai);
  font-size: clamp(6px, 0.78vw, 10px);
  letter-spacing: 0.42em;
  writing-mode: vertical-rl;
}

.back-publisher-seal {
  position: absolute;
  z-index: 4;
  right: 5.2%;
  bottom: 6.2%;
  transform: rotate(3deg);
}

.flip-instruction {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.flip-state {
  color: var(--cinnabar-dark);
}

.primary-actions,
.share-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 11px;
}

.primary-actions {
  position: relative;
  z-index: 2;
  margin-top: 22px;
}

.primary-button,
.secondary-button,
.text-button {
  min-height: 46px;
  border-radius: 8px;
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

a.primary-button,
a.secondary-button,
a.text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  text-decoration: none;
  color: inherit;
}

.primary-button {
  border: 1px solid var(--ink);
  background: var(--accent);
  box-shadow: 0 3px 0 var(--ink);
}

.primary-button:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.primary-button:active {
  box-shadow: 0 1px 0 var(--ink);
  transform: translateY(2px);
}

.secondary-button {
  border: 1px solid rgba(39, 33, 29, 0.7);
  background: rgba(248, 240, 223, 0.72);
}

.secondary-button:hover {
  background: #fff9ee;
  transform: translateY(-1px);
}

.text-button {
  border: 0;
  background: transparent;
  color: var(--cinnabar-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.text-button:focus-visible {
  outline: 3px solid rgba(42, 219, 92, 0.68);
  outline-offset: 3px;
}

.share-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  margin-top: 28px;
  padding: clamp(26px, 5vw, 54px);
  border: 1px solid rgba(39, 33, 29, 0.25);
  background: #35291f;
  color: var(--paper-light);
}

.share-panel h2 {
  max-width: 8ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(28px, 4.2vw, 54px);
  line-height: 1.08;
}

.share-panel > div > p:last-child {
  max-width: 54ch;
  margin: 18px 0 0;
  color: #d8c8b7;
  font-size: 14px;
  line-height: 1.75;
}

.share-panel .eyebrow {
  color: #e59d8f;
}

.share-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  justify-items: stretch;
}

.share-actions .text-button {
  grid-column: 1 / -1;
  justify-self: start;
  min-height: 36px;
  padding: 4px 0;
}

.share-panel .secondary-button {
  border-color: rgba(248, 240, 223, 0.56);
  background: transparent;
  color: var(--paper-light);
}

.share-panel .secondary-button:hover {
  background: rgba(248, 240, 223, 0.1);
}

.share-panel .text-button {
  color: #f0b5a8;
}

.share-links {
  grid-column: 1 / -1;
  display: grid;
  gap: 6px;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(248, 240, 223, 0.2);
  color: #d8c8b7;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
}

.share-links p {
  margin: 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px 32px;
  padding: 28px clamp(20px, 5vw, 72px) 38px;
  border-top: 1px solid rgba(39, 33, 29, 0.17);
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
}

.site-footer p {
  margin: 0;
}

.site-footer-links {
  display: grid;
  gap: 6px;
  text-align: right;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

[hidden] {
  display: none !important;
}

@media (max-width: 820px) {
  .site-header {
    min-height: 62px;
  }

  .brand-lockup > span:last-child,
  .brand-divider {
    display: none;
  }

  .postcard-stage {
    width: min(100% - 24px, 1240px);
    padding-top: 42px;
  }

  .postcard-workbench {
    padding: 30px 14px 26px;
  }

  .postcard-workbench::before {
    inset: 8px;
  }

  .postcard-toggle {
    width: 100%;
  }

  .back-message-column {
    padding-left: 8%;
  }

  .share-panel {
    grid-template-columns: 1fr;
  }

  .share-panel h2 {
    max-width: 8ch;
  }
}

@media (max-width: 520px) {
  .brand-logo {
    width: 88px;
  }

  .stage-heading h1 {
    font-size: clamp(40px, 13vw, 58px);
  }

  .front-window {
    box-shadow: 1px 1px 0 rgba(166, 58, 50, 0.28);
  }

  .front-marks i {
    width: 7px;
    height: 7px;
  }

  .back-border {
    border-width: 1px;
    box-shadow: 2px 2px 0 rgba(166, 58, 50, 0.12);
  }

  .back-divider {
    width: 1px;
  }

  .back-message-column {
    padding-top: 7.5%;
    padding-bottom: 7%;
  }

  .back-message {
    margin-top: 8px;
    line-height: 1.54;
    -webkit-line-clamp: 6;
  }

  .back-signoff small,
  .back-side-note,
  .front-caption small {
    display: none;
  }

  .postage-cluster {
    width: 72%;
  }

  .postage-stamp {
    width: 78%;
  }

  .route-copy {
    padding-top: 80%;
    gap: 5px;
  }

  .postal-mark {
    transform: rotate(-8deg) scale(0.78);
    transform-origin: left center;
  }

  .primary-actions,
  .share-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .primary-actions {
    grid-template-columns: 1fr;
  }

  .primary-actions .primary-button,
  .share-actions .primary-button,
  .share-actions .text-button {
    grid-column: 1 / -1;
    width: 100%;
    justify-self: stretch;
  }

  .primary-button,
  .secondary-button,
  .text-button {
    width: 100%;
    min-height: 44px;
    padding-inline: 12px;
    font-size: 13px;
  }

  .share-panel {
    padding-inline: 20px;
  }

  .site-footer {
    display: grid;
  }

  .site-footer-links {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .postcard-card,
  .primary-button,
  .secondary-button,
  .text-button {
    transition: none;
  }

  .postcard-toggle[aria-pressed="true"] .postcard-card {
    transform: none;
  }

  .postcard-toggle[aria-pressed="true"] .postcard-front {
    visibility: hidden;
  }

  .postcard-toggle[aria-pressed="true"] .postcard-back {
    transform: none;
  }
}