@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #173154;
  --ink-soft: #415671;
  --blue: #2454d7;
  --blue-deep: #163b83;
  --orange: #f0783d;
  --sun: #ffd34f;
  --mint: #83d8b1;
  --paper: #f5eedc;
  --paper-light: #fffaf0;
  --line: rgba(23, 49, 84, .15);
  --serif: "Nanum Myeongjo", "Batang", "AppleMyungjo", serif;
  --sans: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  background-color: var(--paper);
  background-image: linear-gradient(rgba(245, 238, 220, .93), rgba(245, 238, 220, .93)), url("../images/paper-texture.jpg");
  background-size: auto, 430px 430px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button { color: inherit; font: inherit; }
::selection { color: var(--ink); background: var(--sun); }
.section-wrap { width: min(var(--max), calc(100% - 72px)); margin-inline: auto; }
.mobile-only { display: none; }
.skip-link {
  position: fixed; z-index: 100; top: 10px; left: 10px; padding: 12px 16px;
  transform: translateY(-150%); border-radius: 8px; color: white; background: var(--ink);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  width: min(var(--max), calc(100% - 72px)); height: 82px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 850; letter-spacing: -.055em; font-size: 20px; white-space: nowrap; }
.brand-mark { position: relative; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 10px; background: var(--blue); transform: rotate(-5deg); }
.brand-mark::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: var(--sun); }
.brand-mark span { position: absolute; top: 6px; left: 8px; width: 14px; height: 4px; border-radius: 4px; background: var(--orange); }
.main-nav { display: flex; align-items: center; gap: clamp(22px, 3.2vw, 46px); margin-left: auto; }
.main-nav a { position: relative; color: var(--ink-soft); text-decoration: none; font-size: 13px; font-weight: 700; white-space: nowrap; transition: color .2s ease; }
.main-nav a::after { content: ""; position: absolute; right: 0; bottom: -8px; left: 0; height: 2px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--blue); }
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); }
.header-date { display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1px solid rgba(23,49,84,.18); border-radius: 99px; text-decoration: none; font-size: 12px; font-weight: 800; white-space: nowrap; }
.header-date span { color: var(--orange); font-size: 15px; }

.hero { position: relative; display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: 5.5%; min-height: 665px; padding: 64px 0 95px; }
.hero-copy { position: relative; z-index: 2; padding: 0 0 15px 4.5%; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 22px; font-size: 11px; font-weight: 850; letter-spacing: .08em; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(240,120,61,.15); }
.hero h1, .word-copy h2, .closing h2 { margin: 0; font-family: var(--serif); font-size: clamp(50px, 6.3vw, 82px); line-height: 1.2; letter-spacing: -.085em; font-weight: 750; }
.hero h1 em, .word-copy h2 em, .closing h2 em { color: var(--orange); font-style: normal; }
.hero-description { margin: 25px 0 28px; color: var(--ink-soft); font-size: 16px; line-height: 1.9; letter-spacing: -.03em; }
.button { min-height: 49px; display: inline-flex; align-items: center; justify-content: center; gap: 25px; padding: 0 20px; border: 0; border-radius: 999px; text-decoration: none; font-size: 12px; font-weight: 850; transition: transform .2s ease, box-shadow .2s ease; cursor: pointer; }
.button:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(23,49,84,.14); }
.button:focus-visible, .word-option:focus-visible, .closing-up:focus-visible, a:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 8px 18px rgba(36,84,215,.2); }
.button-primary span { font-size: 17px; font-weight: 500; }
.hero-note { display: flex; align-items: center; gap: 11px; margin-top: 52px; color: #708096; font-size: 11px; line-height: 1.65; }
.note-spark { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid rgba(23,49,84,.16); border-radius: 50%; color: var(--orange); font-size: 16px; }
.hero-art { position: relative; align-self: stretch; min-height: 490px; margin: 0; border: 9px solid var(--paper-light); border-radius: 46% 46% 27px 27px / 38% 38% 27px 27px; background: #b3dced; box-shadow: 0 20px 60px rgba(63,77,79,.13); overflow: hidden; }
.hero-art > img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; object-position: 60% center; }
.art-caption { position: absolute; bottom: 17px; left: 17px; display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border: 1px solid rgba(23,49,84,.12); border-radius: 99px; color: var(--ink); background: rgba(255,250,240,.94); font-size: 10px; font-weight: 800; }
.caption-star { color: var(--orange); font-size: 13px; }
.hero-stamp { position: absolute; top: 68px; right: 66px; display: grid; width: 68px; height: 68px; place-content: center; transform: rotate(9deg); border: 1px solid rgba(255,255,255,.78); border-radius: 50%; color: white; background: rgba(36,84,215,.82); text-align: center; font-family: var(--serif); font-size: 19px; font-weight: 800; line-height: 1.05; box-shadow: 0 8px 20px rgba(23,49,84,.14); }
.hero-bottomline { position: absolute; right: 0; bottom: 27px; left: 0; display: flex; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--line); color: #83909e; font-size: 9px; font-weight: 700; letter-spacing: .08em; }
.hero-bottomline span:first-child { font-size: 10px; letter-spacing: 0; }

.intro { position: relative; display: grid; grid-template-columns: 190px 1fr; align-items: center; gap: 45px; min-height: 360px; margin-top: 48px; margin-bottom: 115px; padding: 55px 9%; border: 1px solid rgba(23,49,84,.09); border-radius: 9px; background: rgba(255,250,240,.65); overflow: hidden; }
.intro-date { display: flex; flex-direction: column; align-items: center; width: 150px; padding: 20px 12px 17px; transform: rotate(-5deg); border: 1px solid rgba(23,49,84,.2); border-radius: 4px; color: var(--blue); background: #f9dc89; box-shadow: 4px 5px 0 rgba(23,49,84,.09); }
.intro-date span { font-size: 9px; font-weight: 850; letter-spacing: .15em; }
.intro-date strong { font-family: var(--serif); font-size: 71px; line-height: 1; letter-spacing: -.08em; }
.intro-copy { position: relative; z-index: 1; max-width: 615px; }
.eyebrow-dark { color: var(--orange); }
.intro-copy .eyebrow { margin-bottom: 13px; }
.intro-copy h2, .section-heading h2, .sticker-copy h2 { margin: 0; font-family: var(--serif); font-size: clamp(30px, 3.2vw, 41px); letter-spacing: -.07em; line-height: 1.34; }
.intro-copy > p:not(.eyebrow) { margin: 16px 0 16px; color: var(--ink-soft); font-size: 13px; line-height: 1.9; letter-spacing: -.025em; }
.text-link { display: inline-flex; align-items: center; gap: 8px; padding-bottom: 4px; border-bottom: 1px solid var(--orange); color: var(--ink); text-decoration: none; font-size: 11px; font-weight: 800; }
.text-link span { color: var(--orange); font-size: 15px; }
.intro-sticker { position: absolute; z-index: 1; width: 116px; opacity: .98; pointer-events: none; }
.intro-sticker img { width: 100%; }
.intro-sticker-one { right: 13px; bottom: -9px; transform: rotate(-8deg); }
.intro-sticker-two { right: 103px; top: -18px; width: 88px; transform: rotate(12deg); }
.intro-doodle { position: absolute; z-index: 0; color: rgba(36,84,215,.13); font-family: var(--serif); font-weight: 900; }
.doodle-one { right: 55px; top: 57px; font-size: 100px; transform: rotate(-12deg); }
.doodle-two { right: 225px; bottom: 16px; font-size: 71px; }

.story-section { padding: 100px 0 104px; background: #ecdfc2; background-image: linear-gradient(rgba(236,223,194,.9), rgba(236,223,194,.9)), url("../images/paper-texture.jpg"); background-size: auto, 460px; }
.story-inner { position: relative; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 40px; }
.section-heading .eyebrow { margin-bottom: 13px; }
.heading-aside { margin: 0 2px 5px 0; color: #65768a; font-size: 12px; line-height: 1.8; text-align: right; }
.story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.story-card { min-width: 0; border: 1px solid rgba(23,49,84,.12); border-radius: 7px; background: var(--paper-light); box-shadow: 0 11px 25px rgba(60,54,35,.055); overflow: hidden; }
.story-card:nth-child(2) { transform: translateY(19px); }
.story-image { position: relative; height: 228px; background: #c7dece; overflow: hidden; }
.story-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.story-card:hover .story-image img { transform: scale(1.035); }
.story-number { position: absolute; right: 13px; bottom: 11px; display: grid; width: 33px; height: 33px; place-items: center; border-radius: 50%; color: var(--ink); background: var(--sun); font-family: var(--serif); font-size: 12px; font-weight: 900; }
.story-card-copy { padding: 21px 22px 23px; }
.story-label { color: var(--orange); font-size: 9px; font-weight: 850; letter-spacing: .08em; }
.story-card h3 { margin: 8px 0 8px; font-family: var(--serif); font-size: 21px; letter-spacing: -.055em; }
.story-card p { min-height: 42px; margin: 0; color: #6c7a8a; font-size: 11px; line-height: 1.8; letter-spacing: -.02em; }
.story-footnote { display: flex; align-items: center; justify-content: center; gap: 9px; margin-top: 67px; color: #718095; font-size: 11px; }
.footnote-flower { color: var(--orange); font-size: 18px; }

.activity-section { padding: 101px 0 93px; background: var(--paper-light); background-image: linear-gradient(rgba(255,250,240,.95), rgba(255,250,240,.95)), url("../images/paper-texture.jpg"); background-size: auto, 430px; }
.activity-heading { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 34px; }
.activity-heading .eyebrow { margin-bottom: 13px; }
.activity-heading h2 { margin: 0; font-family: var(--serif); font-size: clamp(30px, 3.4vw, 42px); letter-spacing: -.07em; line-height: 1.32; }
.activity-heading > p { margin: 0 2px 5px 0; color: #718095; font-size: 12px; line-height: 1.8; text-align: right; }
.activity-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.activity-card { position: relative; min-width: 0; min-height: 328px; padding: 23px 22px 20px; border: 1px solid rgba(23,49,84,.12); border-radius: 8px; background: #fffdf7; box-shadow: 0 10px 26px rgba(45,57,70,.045); overflow: hidden; }
.activity-card-top { display: flex; align-items: center; gap: 9px; margin-bottom: 22px; }
.activity-icon { display: grid; width: 31px; height: 31px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: var(--ink); font-family: var(--serif); font-size: 17px; font-weight: 900; }
.quiz-icon { background: #ffd56a; }
.mission-icon { color: #1c6a56; background: #a9e4c1; }
.postcard-icon { color: #fff; background: var(--orange); }
.activity-kicker { color: #8190a1; font-size: 9px; font-weight: 850; letter-spacing: .09em; }
.activity-card h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 20px; letter-spacing: -.055em; }
.activity-prompt { margin: 0; color: #718095; font-size: 10px; line-height: 1.8; }
.quiz-options { display: flex; gap: 8px; margin-top: 22px; }
.quiz-option { min-width: 60px; padding: 9px 13px; border: 1px solid rgba(23,49,84,.17); border-radius: 99px; color: var(--ink); background: transparent; font-size: 11px; font-weight: 750; cursor: pointer; transition: .18s ease; }
.quiz-option:hover { border-color: var(--blue); color: var(--blue); }
.quiz-option:focus-visible, .mission-check:focus-visible + span, #postcard-submit:focus-visible, #postcard-input:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.quiz-option.is-selected { border-color: var(--blue); color: white; background: var(--blue); }
.quiz-option.is-correct { border-color: #318464; background: #318464; }
.quiz-feedback { min-height: 38px; margin: 17px 0 0; padding: 10px 11px; border-radius: 5px; color: #60758b; background: #f1f4f5; font-size: 9px; line-height: 1.65; }
.quiz-feedback.is-correct { color: #205d47; background: #e0f3e7; }
.quiz-feedback.is-try-again { color: #8a552e; background: #fff0dd; }
.mission-card { background: #f4f7ec; }
.mission-meter { display: flex; align-items: center; gap: 11px; margin: 17px 0 13px; }
.mission-meter progress { width: 100%; height: 7px; border: 0; border-radius: 99px; overflow: hidden; appearance: none; }
.mission-meter progress::-webkit-progress-bar { border-radius: 99px; background: #dce7d6; }
.mission-meter progress::-webkit-progress-value { border-radius: 99px; background: #419775; transition: width .2s ease; }
.mission-meter progress::-moz-progress-bar { border-radius: 99px; background: #419775; }
.mission-meter span { flex: 0 0 auto; color: #557968; font-size: 9px; font-weight: 800; }
.mission-list { display: grid; gap: 9px; }
.mission-list label { display: flex; align-items: center; gap: 9px; min-height: 28px; color: #536777; font-size: 10px; line-height: 1.45; cursor: pointer; }
.mission-list input { width: 15px; height: 15px; flex: 0 0 auto; margin: 0; accent-color: #318464; }
.mission-list input:checked + span { color: #388264; text-decoration: line-through; text-decoration-thickness: 1px; text-decoration-color: rgba(56,130,100,.55); }
.postcard-card { background: #fff1cc; }
.postcard-card textarea { display: block; width: 100%; min-height: 58px; resize: vertical; margin-top: 13px; padding: 10px 11px; border: 1px solid rgba(23,49,84,.16); border-radius: 5px; color: var(--ink); background: rgba(255,255,255,.75); font: inherit; font-size: 10px; line-height: 1.6; }
.postcard-card textarea::placeholder { color: #a49b87; }
.postcard-actions { display: flex; align-items: center; justify-content: space-between; gap: 7px; margin-top: 9px; }
.postcard-actions > span { color: #91856d; font-size: 8px; }
#postcard-submit { padding: 8px 11px; border: 0; border-radius: 99px; color: white; background: var(--blue); font-size: 9px; font-weight: 800; cursor: pointer; }
#postcard-submit span { margin-left: 5px; font-size: 12px; }
.postcard-preview { position: relative; margin-top: 11px; padding: 11px 36px 10px 12px; border: 1px dashed rgba(23,49,84,.24); border-radius: 4px; background: rgba(255,250,240,.7); }
.postcard-preview > span:first-child { color: #91856d; font-size: 7px; font-weight: 800; letter-spacing: .06em; }
.postcard-preview p { min-height: 16px; margin: 4px 0 0; color: var(--blue-deep); font-family: var(--serif); font-size: 12px; font-weight: 700; line-height: 1.5; overflow-wrap: anywhere; white-space: pre-wrap; }
.postcard-flower { position: absolute; right: 10px; bottom: 7px; color: var(--orange); font-size: 22px; }
.activity-note { margin: 19px 0 0; color: #9299a1; font-size: 9px; text-align: right; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.word-section { position: relative; padding: 104px 0 102px; color: white; background: var(--blue-deep); background-image: radial-gradient(circle at 8% 15%, rgba(131,216,177,.15) 0 3px, transparent 4px), radial-gradient(circle at 92% 82%, rgba(255,211,79,.15) 0 4px, transparent 5px); background-size: 31px 31px, 37px 37px; overflow: hidden; }
.word-wrap { position: relative; display: grid; grid-template-columns: .88fr 1.12fr; align-items: center; gap: 11%; max-width: 1080px; }
.eyebrow-light { color: #cad6ed; }
.eyebrow-light .eyebrow-dot { background: var(--sun); box-shadow: 0 0 0 4px rgba(255,211,79,.16); }
.word-copy { position: relative; z-index: 2; }
.word-copy h2 { font-size: clamp(48px, 5.7vw, 70px); }
.word-copy h2 em { color: var(--sun); }
.word-copy > p:not(.eyebrow) { margin: 18px 0 21px; color: #d2dcef; font-size: 13px; line-height: 1.85; }
.word-options { display: flex; gap: 9px; margin-bottom: 20px; }
.word-option { width: 43px; height: 43px; padding: 0; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; color: white; background: rgba(255,255,255,.08); font-family: var(--serif); font-size: 16px; font-weight: 800; cursor: pointer; transition: color .18s ease, background .18s ease, transform .18s ease; }
.word-option:hover { transform: translateY(-3px); }
.word-option.is-selected { border-color: var(--sun); color: var(--ink); background: var(--sun); box-shadow: 0 0 0 4px rgba(255,211,79,.14); }
.button-light { min-height: 45px; color: var(--ink); background: var(--paper-light); }
.button-light span { color: var(--orange); font-size: 17px; }
.word-card { position: relative; z-index: 1; width: min(100%, 435px); min-height: 392px; justify-self: center; padding: 25px 30px 22px; transform: rotate(2.2deg); border: 8px solid #fffaf0; border-radius: 5px; color: var(--ink); background: #fffaf0; box-shadow: 14px 19px 0 rgba(7,22,53,.17), 0 20px 50px rgba(2,13,35,.15); overflow: visible; }
.word-card::before { content: ""; position: absolute; z-index: -1; inset: -14px 10px 12px -11px; transform: rotate(-4deg); border-radius: 3px; background: #ffd36d; }
.word-card-top, .word-card-bottom { display: flex; align-items: center; justify-content: space-between; color: #758297; font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.word-date { color: var(--orange); }
.word-card-center { position: relative; display: grid; min-height: 226px; place-items: center; margin: 7px 0; border-block: 1px dashed rgba(23,49,84,.18); }
.word-card-center strong { color: var(--blue); font-family: var(--serif); font-size: 151px; line-height: 1; letter-spacing: -.08em; }
.word-orbit { position: absolute; color: var(--orange); }
.orbit-a { top: 30px; left: 50px; font-size: 30px; }
.orbit-b { right: 53px; bottom: 31px; color: #65b98c; font-size: 33px; }
.word-meaning { position: relative; z-index: 2; min-height: 39px; margin: 11px 0 18px; color: #63738a; font-size: 11px; line-height: 1.7; text-align: center; }
.word-card-bottom { padding-top: 11px; border-top: 1px solid rgba(23,49,84,.12); }
.word-sticker { position: absolute; z-index: 3; right: -58px; bottom: -60px; width: 137px; transform: rotate(9deg); }
.word-decoration { position: absolute; inset: 0; pointer-events: none; }
.word-decoration img { position: absolute; width: 125px; opacity: .84; }
.word-decoration img:first-child { top: -58px; right: 30px; transform: rotate(13deg); }
.word-decoration img:last-child { bottom: -86px; left: 41%; width: 113px; transform: rotate(-13deg); }

.sticker-section { position: relative; display: grid; grid-template-columns: 260px 1fr; align-items: center; gap: 50px; min-height: 340px; padding-block: 70px; }
.sticker-copy .eyebrow { margin-bottom: 14px; }
.sticker-copy h2 { font-size: 29px; }
.sticker-copy > p:last-child { margin: 13px 0 0; color: var(--ink-soft); font-size: 11px; line-height: 1.8; }
.sticker-shelf { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); align-items: center; min-height: 170px; padding: 13px 12px; border: 1px solid rgba(255,255,255,.1); border-radius: 20px; background: var(--blue-deep); box-shadow: 0 13px 35px rgba(23,49,84,.12); }
.sticker-shelf img { width: 100%; max-width: 150px; justify-self: center; filter: drop-shadow(0 5px 4px rgba(6,20,49,.13)); transition: transform .22s ease; }
.sticker-shelf img:nth-child(odd) { transform: translateY(-5px) rotate(-4deg); }
.sticker-shelf img:nth-child(even) { transform: translateY(7px) rotate(4deg); }
.sticker-shelf img:hover { transform: translateY(-8px) rotate(0) scale(1.08); }
.shelf-label { position: absolute; right: 7px; bottom: 42px; color: #8b98aa; font-size: 8px; letter-spacing: .12em; }

.closing { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; min-height: 410px; margin-bottom: 77px; padding: 50px 8% 46px; border-radius: 11px; background: #f3d276; overflow: hidden; }
.closing::before, .closing::after { content: ""; position: absolute; border: 1px solid rgba(23,49,84,.1); border-radius: 50%; }
.closing::before { width: 440px; height: 440px; left: -180px; top: 22px; }
.closing::after { width: 380px; height: 380px; left: -150px; top: 53px; }
.closing > img { position: relative; z-index: 1; width: min(88%, 340px); justify-self: center; filter: drop-shadow(0 18px 14px rgba(23,49,84,.12)); }
.closing-copy { position: relative; z-index: 2; padding-left: 20px; }
.closing-copy .eyebrow { margin-bottom: 15px; }
.closing h2 { font-size: clamp(40px, 5.2vw, 63px); }
.closing h2 em { color: var(--blue); }
.closing-copy > p:last-child { margin: 18px 0 0; color: #596778; font-size: 12px; line-height: 1.9; }
.closing-up { position: absolute; z-index: 4; right: 25px; bottom: 22px; display: grid; width: 41px; height: 41px; place-items: center; border: 1px solid rgba(23,49,84,.25); border-radius: 50%; color: var(--ink); text-decoration: none; font-size: 19px; transition: background .18s ease, transform .18s ease; }
.closing-up:hover { transform: translateY(-3px); background: rgba(255,250,240,.65); }
.site-footer { display: flex; align-items: center; justify-content: space-between; min-height: 76px; border-top: 1px solid var(--line); color: #758195; }
.brand-footer { color: var(--ink); font-size: 14px; }
.brand-footer .brand-mark { width: 25px; height: 25px; border-radius: 8px; }
.brand-footer .brand-mark::before { width: 12px; height: 12px; }
.brand-footer .brand-mark span { top: 5px; left: 7px; width: 12px; height: 3px; }
.site-footer > p, .footer-date { margin: 0; font-size: 10px; }

@media (max-width: 920px) {
  .section-wrap, .site-header { width: min(var(--max), calc(100% - 48px)); }
  .site-header { height: 74px; gap: 18px; }
  .main-nav { gap: 20px; }
  .main-nav a { font-size: 11px; }
  .header-date { padding: 8px 10px; font-size: 10px; }
  .hero { min-height: 590px; gap: 4%; grid-template-columns: .9fr 1.1fr; }
  .hero-copy { padding-left: 0; }
  .hero-art { min-height: 430px; }
  .hero h1 { font-size: clamp(48px, 7vw, 66px); }
  .intro { grid-template-columns: 145px 1fr; gap: 30px; padding-inline: 6%; }
  .intro-date { width: 125px; }
  .intro-date strong { font-size: 61px; }
  .intro-sticker-one { width: 90px; }
  .intro-sticker-two { right: 75px; width: 72px; }
  .story-image { height: 185px; }
  .story-card-copy { padding: 18px 17px 20px; }
  .story-card h3 { font-size: 18px; }
  .story-card p { font-size: 10px; }
  .word-wrap { gap: 8%; }
  .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .postcard-card { grid-column: 1 / -1; }
  .activity-card { min-height: 315px; }
  .word-card { min-height: 364px; }
  .word-card-center { min-height: 200px; }
  .word-card-center strong { font-size: 135px; }
  .sticker-section { grid-template-columns: 210px 1fr; gap: 28px; }
  .sticker-shelf { min-height: 145px; padding-inline: 6px; }
  .closing { min-height: 350px; padding-inline: 5%; }
}

@media (max-width: 650px) {
  html { scroll-padding-top: 68px; }
  .section-wrap, .site-header { width: calc(100% - 36px); }
  .mobile-only { display: initial; }
  .desktop-only { display: none; }
  .site-header { position: relative; z-index: 5; height: auto; min-height: 82px; flex-wrap: wrap; gap: 8px; padding: 10px 0 9px; }
  .brand { gap: 8px; font-size: 16px; }
  .brand-mark { width: 27px; height: 27px; border-radius: 9px; }
  .brand-mark::before { width: 13px; height: 13px; }
  .brand-mark span { top: 5px; left: 7px; width: 13px; height: 4px; }
  .main-nav { order: 3; flex: 0 0 100%; justify-content: space-between; gap: 7px; margin: 2px 0 0; }
  .main-nav a { font-size: 9px; letter-spacing: -.04em; }
  .main-nav a::after { bottom: -6px; }
  .header-date { gap: 5px; padding: 7px 8px; font-size: 9px; }
  .header-date span { font-size: 12px; }
  .hero { display: flex; flex-direction: column; align-items: stretch; gap: 27px; min-height: auto; padding: 48px 0 75px; }
  .hero-copy { padding: 0 4px; }
  .eyebrow { gap: 8px; margin-bottom: 18px; font-size: 9px; }
  .hero h1 { font-size: clamp(46px, 13vw, 62px); line-height: 1.17; }
  .hero-description { margin: 17px 0 19px; font-size: 13px; line-height: 1.8; }
  .button { min-height: 45px; padding-inline: 17px; font-size: 11px; }
  .hero-note { display: none; }
  .hero-art { align-self: stretch; min-height: 0; aspect-ratio: 1.36; border-width: 6px; border-radius: 42% 42% 18px 18px / 29% 29% 18px 18px; }
  .hero-art > img { object-position: 62% 53%; }
  .hero-stamp { top: 46px; right: clamp(50px, 16vw, 84px); width: 52px; height: 52px; font-size: 15px; }
  .art-caption { bottom: 9px; left: 9px; gap: 5px; padding: 7px 10px; font-size: 8px; }
  .hero-bottomline { bottom: 20px; padding-top: 11px; font-size: 7px; }
  .hero-bottomline span:first-child { font-size: 8px; }
  .intro { display: block; min-height: 0; margin-top: 23px; margin-bottom: 73px; padding: 28px 24px 31px; }
  .intro-date { width: 96px; margin: 2px 0 25px 3px; padding: 12px 8px 10px; }
  .intro-date span { font-size: 7px; }
  .intro-date strong { font-size: 46px; }
  .intro-copy .eyebrow { margin-bottom: 10px; }
  .intro-copy h2 { font-size: 29px; }
  .intro-copy > p:not(.eyebrow) { margin: 12px 0 13px; font-size: 11px; }
  .text-link { font-size: 9px; }
  .intro-sticker-one { right: 3px; bottom: -15px; width: 76px; }
  .intro-sticker-two { top: 6px; right: 13px; width: 57px; }
  .doodle-one { top: 13px; right: 73px; font-size: 54px; }
  .doodle-two { right: 86px; bottom: 3px; font-size: 45px; }
  .story-section { padding: 69px 0 68px; }
  .section-heading { display: block; margin-bottom: 26px; }
  .section-heading h2 { font-size: 30px; }
  .heading-aside { margin: 10px 0 0; font-size: 10px; text-align: left; }
  .story-grid { grid-template-columns: 1fr; gap: 15px; }
  .story-card:nth-child(2) { transform: none; }
  .story-card { display: grid; grid-template-columns: 42% 1fr; min-height: 151px; }
  .story-image { height: 100%; min-height: 151px; }
  .story-number { right: 8px; bottom: 8px; width: 27px; height: 27px; font-size: 10px; }
  .story-card-copy { align-self: center; padding: 16px 13px; }
  .story-label { font-size: 8px; }
  .story-card h3 { margin: 6px 0; font-size: 16px; }
  .story-card p { min-height: 0; font-size: 9px; line-height: 1.7; }
  .story-footnote { align-items: flex-start; justify-content: flex-start; margin-top: 28px; font-size: 9px; line-height: 1.7; }
  .footnote-flower { flex: 0 0 auto; font-size: 14px; }
  .activity-section { padding: 67px 0 65px; }
  .activity-heading { display: block; margin-bottom: 23px; }
  .activity-heading h2 { font-size: 29px; }
  .activity-heading > p { margin: 9px 0 0; font-size: 10px; text-align: left; }
  .activity-grid { grid-template-columns: 1fr; gap: 12px; }
  .activity-card, .postcard-card { grid-column: auto; min-height: 0; padding: 19px 18px 17px; }
  .activity-card-top { margin-bottom: 15px; }
  .activity-card h3 { font-size: 18px; }
  .activity-prompt { font-size: 9px; }
  .quiz-options { margin-top: 15px; }
  .quiz-feedback { min-height: 33px; margin-top: 12px; padding: 8px 10px; }
  .mission-meter { margin: 12px 0 9px; }
  .mission-list { gap: 6px; }
  .mission-list label { font-size: 9px; }
  .postcard-card textarea { min-height: 50px; }
  .activity-note { font-size: 8px; line-height: 1.7; text-align: left; }
  .word-section { padding: 72px 0 75px; }
  .word-wrap { display: flex; flex-direction: column; align-items: stretch; gap: 32px; }
  .word-copy h2 { font-size: 52px; }
  .word-copy > p:not(.eyebrow) { margin: 13px 0 16px; font-size: 11px; }
  .word-options { gap: 8px; margin-bottom: 17px; }
  .word-option { width: 39px; height: 39px; font-size: 14px; }
  .button-light { min-height: 41px; }
  .word-card { width: calc(100% - 14px); min-height: 330px; padding: 20px 21px 17px; border-width: 6px; }
  .word-card-center { min-height: 176px; }
  .word-card-center strong { font-size: 117px; }
  .word-meaning { margin: 8px 0 13px; font-size: 10px; }
  .orbit-a { top: 22px; left: 35px; font-size: 24px; }
  .orbit-b { right: 36px; bottom: 23px; font-size: 27px; }
  .word-sticker { right: -26px; bottom: -48px; width: 102px; }
  .word-decoration img { width: 82px; }
  .word-decoration img:first-child { top: -30px; right: 0; }
  .word-decoration img:last-child { bottom: -48px; left: auto; right: 10px; width: 79px; }
  .sticker-section { display: block; min-height: 0; padding-block: 60px 67px; }
  .sticker-copy h2 { font-size: 27px; }
  .sticker-copy > p:last-child { font-size: 10px; }
  .sticker-shelf { grid-template-columns: repeat(3, 1fr); min-height: 0; margin-top: 23px; padding: 9px; border-radius: 16px; }
  .sticker-shelf img { width: 100%; max-width: 118px; }
  .sticker-shelf img:nth-child(n+4) { margin-top: -7px; }
  .shelf-label { right: 1px; bottom: 39px; font-size: 7px; }
  .closing { grid-template-columns: .76fr 1.24fr; min-height: 255px; margin-bottom: 46px; padding: 27px 18px 27px 4px; border-radius: 9px; }
  .closing::before { width: 245px; height: 245px; left: -142px; top: 8px; }
  .closing::after { width: 205px; height: 205px; left: -121px; top: 28px; }
  .closing > img { width: 130%; max-width: none; transform: translateX(-3px); }
  .closing-copy { padding-left: 1px; }
  .closing-copy .eyebrow { margin-bottom: 10px; font-size: 7px; }
  .closing h2 { font-size: clamp(27px, 8vw, 37px); }
  .closing-copy > p:last-child { margin-top: 11px; font-size: 9px; }
  .closing-up { right: 10px; bottom: 10px; width: 32px; height: 32px; font-size: 15px; }
  .site-footer { flex-wrap: wrap; gap: 8px 15px; min-height: 76px; padding-block: 15px; }
  .brand-footer { font-size: 12px; }
  .brand-footer .brand-mark { width: 22px; height: 22px; }
  .site-footer > p { order: 3; flex-basis: 100%; font-size: 8px; }
  .footer-date { font-size: 8px; }
}

@media (max-width: 390px) {
  .section-wrap, .site-header { width: calc(100% - 28px); }
  .site-header { gap: 7px; }
  .brand { gap: 6px; font-size: 14px; }
  .main-nav { gap: 8px; }
  .main-nav a { font-size: 8px; }
  .header-date { padding: 6px 7px; font-size: 8px; }
  .hero h1 { font-size: 45px; }
  .closing { grid-template-columns: .7fr 1.3fr; }
  .closing h2 { font-size: 27px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}