/* Screen styling is separate from the A4 stylesheet in styles.css. */
@media screen {
 :root{--bg:#fcfcf8;--ink:#193f34;--muted:#65796e;--line:#d8e6da;--green:#146b55}
 .site-header{max-width:1320px;margin:23px auto 0;padding:12px 24px 10px;min-height:116px;border:0;border-bottom:7px solid #d0e9b9;border-radius:22px;background:linear-gradient(105deg,#fff7db 5%,#f5f8dc 55%,#e6f3dc);align-items:center}
 .brand{gap:11px}.brand img{width:88px;height:88px;object-fit:contain;border-radius:0;mix-blend-mode:multiply}.brand strong{font-size:37px;letter-spacing:-2.6px;color:#fff;text-shadow:-2px -2px 0 #23593f,2px -2px 0 #23593f,-2px 2px 0 #23593f,2px 2px 0 #23593f;font-weight:950;line-height:1.3}.brand em{color:#f2ca50}.brand small{display:inline-block;background:#ffffffe6;border:1px solid #d7e6bd;color:var(--green);border-radius:20px;font-size:10px;letter-spacing:0;padding:1px 12px;margin-top:7px;font-weight:700}
 .series{align-self:flex-start;margin-top:4px;gap:3px;background:#fffffff5;border:1px solid #d9e2ce;border-radius:40px;padding:5px 7px;font-size:11px}.series>span{font-size:10px;margin:0 7px;color:#5c6c5e}.series a,.series b{border:0;padding:7px 12px;background:transparent}.series b{background:var(--green)}
 .layout{padding-top:24px;grid-template-columns:190px minmax(0,1fr);gap:30px}.sidebar{top:18px}.sidebar nav{gap:5px}.sidebar nav>a{display:block;border-radius:8px;padding:11px 12px;font-size:14px}.sidebar small{font-size:10px;margin-top:2px}.nav-label{padding-top:17px}.sidebar .side-grade{margin-left:8px;border-left:3px solid transparent;padding:8px 11px}.side-grade strong{font-size:12px}.side-grade small{font-size:10px}.side-grade[aria-current]{box-shadow:inset 0 0 0 1px #89b39b}.side-note{margin-top:25px;padding-top:17px}.nav-divider{margin:14px 12px 8px}
 .grade-preschool{background:#fff0d7}.grade-g1{background:#fbe8e4}.grade-g2{background:#fff0d8}.grade-g3{background:#e6f2e4}.grade-g4{background:#e5f0f8}.grade-g5{background:#eeebf8}.grade-g6{background:#f4e9f5}.side-grade.grade-g1{border-color:#db8b79}.side-grade.grade-g2{border-color:#dba453}.side-grade.grade-g3{border-color:#76a96f}.side-grade.grade-g4{border-color:#739fc8}.side-grade.grade-g5{border-color:#9a85c9}.side-grade.grade-g6{border-color:#b381bb}
 .search-panel{background:white;border:1px solid var(--line);padding:15px 17px;margin-bottom:16px;border-radius:14px}.search-panel label{color:var(--green);font-size:12px;margin-bottom:9px}.search-line{border-color:#b9d4c0;border-radius:9px;padding:5px;gap:6px}.search-line input{font-size:14px;padding:8px 11px;min-height:36px}.search-line .button{min-height:40px}
 .hero.series-hero{background:var(--green);border-radius:20px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:26px;padding:34px;min-height:590px;overflow:visible}.hero-kicker{font-size:11px;color:#c9e0c9;font-weight:700;line-height:1.8}.hero-kicker span{display:inline-block;margin-left:10px}.series-hero h1{font-size:40px;font-weight:900;line-height:1.5;letter-spacing:-.065em;margin:21px 0 19px}.series-hero .hero-lede{font-size:13px;line-height:1.9;color:#ecf4e6}.series-facts{font-size:11px;margin:22px 0;color:#d7e8d4}.series-facts b{color:white;font-weight:800}.series-hero .hero-figure{margin:0;align-self:center;text-align:center;background:#fffdf8;border-radius:20px;padding:14px 12px 20px;color:var(--ink);box-shadow:0 10px 25px #002d2420}.hero-figure>img{display:block;width:100%;max-width:330px;height:auto;object-fit:contain;margin:auto;mix-blend-mode:multiply}.series-hero figcaption{margin-top:6px;color:var(--muted);font-size:11px;text-align:center}.series-hero figcaption b{display:block;color:var(--green);font-size:18px;letter-spacing:0;margin-bottom:4px}.series-hero figcaption span{display:block;font-size:10px}
 .grade-picker{background:#fffef7;color:var(--ink);border-radius:15px;padding:20px;margin-top:20px}.grade-picker h2{font-size:17px;letter-spacing:-.04em}.grade-picker>p{font-size:10px;color:var(--muted);margin:3px 0 13px}.grade-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.grade-buttons a{font-size:12px;border:1px solid #c7d7c5;border-bottom-width:3px;border-radius:9px;text-align:center;padding:9px 3px;min-height:43px;font-weight:700;line-height:1.5}.grade-buttons a:first-child{grid-column:1/4}.grade-buttons a:hover{outline:2px solid #91ad8a;outline-offset:1px}.picker-print{margin-top:13px;display:flex;justify-content:space-between;border-radius:6px;padding:11px 12px;background:var(--green);color:white;font-size:11px;font-weight:700}
 .recent-strip{margin:25px 0 34px;padding:23px 0;gap:18px}.recent-strip h2{font-size:17px;margin:6px 0}.recent-strip p{font-size:11px}.mini-stamps{min-width:85px}.eyebrow{letter-spacing:.02em;font-size:11px}.section-heading h2{font-size:24px}.grade-overview{display:grid;grid-template-columns:1fr 1fr;gap:12px}.overview-card{display:flex;gap:15px;align-items:center;padding:20px;border:1px solid #dbe4d5;border-radius:11px}.overview-card>span{font-size:14px;font-weight:800;border:1px solid #b6c6b0;background:#ffffff9c;padding:7px;min-width:46px;text-align:center;border-radius:9px}.overview-card h3{font-size:16px}.overview-card p{font-size:10px;color:var(--muted);margin-top:5px}.overview-card>b{margin-left:auto}.home-notes h2{font-size:23px;margin:8px 0}.home-notes p{font-size:13px;line-height:1.9}.home-notes .button{margin-top:8px}
 .unit-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.unit-card{display:flex}.unit-card .unit-art{height:105px;min-height:0}.unit-card h2{font-size:17px;padding:13px 16px 0}.unit-card h2 a:after{content:'';position:absolute;inset:0}.unit-card>p{font-size:11px;padding:7px 16px 19px;color:var(--muted)}.unit-bottom{font-size:10px}.unit-heading{padding:29px}.unit-heading>.art{width:105px;height:110px}.unit-heading h1{font-size:30px}.intro-label{margin-top:9px!important;color:#8a6534!important;font-size:12px!important}.lesson-list{display:grid;gap:13px}.lesson-row{display:flex;gap:19px;align-items:center;padding:23px;border:1px solid var(--line);border-radius:12px;background:white}.lesson-number{font-size:29px;min-width:39px;color:#7d9b7c;font-weight:600}.lesson-row>div{flex:1;min-width:0}.lesson-row h2{font-size:19px;margin:4px 0 6px}.lesson-row span,.lesson-row p{font-size:11px;color:var(--muted)}.lesson-row .button{font-size:12px;flex:none}.oral-activity{border-left:3px solid #a3b78b;background:#eff4e8;padding:18px 20px;border-radius:0 9px 9px 0;margin:25px 0;font-size:12px}.oral-activity>b{color:var(--green)}.oral-activity p{margin-top:7px;color:#5d6c58;line-height:1.9}.vocab-item>b{font-size:16px;overflow-wrap:anywhere;line-height:1.6}.vocab-item{padding:16px 9px 12px}.vocab-item .art{width:57px;height:60px}.vocab-item>span{margin-top:4px}.subheading{font-size:23px}
 .print-unit{padding:21px;background:white;border:1px solid var(--line);border-radius:12px}.print-unit>div h2{font-size:21px;margin:7px 0 15px}.print-unit .print-row{border:0;border-top:1px solid var(--line);border-radius:0;padding:15px 0;gap:18px}.print-row>a{font-size:13px;flex:1}.print-row .actions{flex:none;max-width:none}.print-row .button{font-size:11px;padding:8px 12px;min-height:40px}.unit-workspace{grid-template-columns:minmax(0,1fr) 225px;gap:26px}
 .match-pair{display:grid;grid-template-columns:minmax(0,1fr) 30px minmax(0,1fr);align-items:center;gap:14px}.match-pair>span{font-size:20px;line-height:1.6;padding:16px;border:1px solid #d4dece;background:#f5f7ee;border-radius:8px;overflow-wrap:anywhere}.match-pair>b{color:var(--green);font-size:25px;text-align:center}.match-pair select{font:inherit;font-size:17px;width:100%;min-width:0;min-height:58px;padding:11px 7px;border:1.5px solid #b2c9b7;border-radius:8px;background:#fff;color:var(--ink)}.choice{overflow-wrap:anywhere;font-size:18px}.choices{clear:both}.answer-input{font-size:21px}.hint{font-size:13px;overflow-wrap:anywhere}.passage p{font-size:21px;line-height:1.85}.question{scroll-margin:30px}.question legend{font-size:17px}.question .listen{font-size:12px;min-height:38px}.question-art{float:none;display:inline-block}.question-art .art{width:62px;height:65px}.record-band{margin-top:30px}.record-band>h2{font-size:22px}.record-band .stamp-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:15px}.stamp-card{padding:18px 12px}.stamp-flower{width:60px;height:60px;font-size:41px;line-height:53px;margin-bottom:10px}.stamp-card>b{font-size:12px}.stamp-card>span:last-child{font-size:10px}.notice-item{border:1px solid #dae5c8;border-left:4px solid #b6c785;border-radius:8px;padding:15px 18px;background:#f5f8eb;margin-bottom:15px}.notice-item>b{font-size:14px}.notice-item>p{font-size:12px;white-space:pre-wrap;margin-top:7px}.notice-item>small{font-size:10px;color:var(--muted)}.feedback-form{max-width:700px;border:1px solid var(--line);padding:25px;border-radius:12px;background:white}.feedback-form label{display:block;font-weight:700;margin-bottom:12px}.feedback-form textarea{width:100%;font:inherit;padding:15px;border:1px solid #c2d5c4;border-radius:8px;resize:vertical;font-size:16px}.feedback-form p{margin:12px 0}.site-footer{font-size:11px}.site-footer>p{line-height:2}
 @media(max-width:1100px){.layout{grid-template-columns:165px minmax(0,1fr);gap:22px}.site-header{margin-left:20px;margin-right:20px}.hero.series-hero{padding:26px;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px}.series-hero h1{font-size:33px}.series-hero .hero-lede{font-size:12px}.hero-kicker span{margin-left:0}.grade-picker{padding:17px}.grade-buttons a{font-size:11px}.grade-overview{gap:10px}.overview-card{padding:16px;gap:10px}.overview-card h3{font-size:14px}.unit-workspace{grid-template-columns:minmax(0,1fr) 210px;gap:20px}.lesson-row{padding:20px;gap:13px}.lesson-row h2{font-size:17px}.lesson-row .button{padding:9px 12px}}
 @media(max-width:800px){.site-header{min-height:104px;margin:15px 20px 0;padding:10px 15px;border-radius:16px}.brand img{width:70px;height:78px}.brand strong{font-size:31px}.brand small{font-size:9px}.layout{display:block;padding-top:20px}.hero.series-hero{min-height:560px}.series-hero h1{font-size:35px}.unit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.unit-workspace{grid-template-columns:minmax(0,1fr) 210px}.series{font-size:10px}.series>span{display:none}.series a,.series b{padding:6px 9px}.site-footer{padding-bottom:95px}.mobile-nav a{font-size:21px}}
 @media(max-width:560px){.site-header{margin:12px 12px 0;min-height:100px;padding:9px 11px;border-radius:14px;align-items:center;gap:5px;border-bottom-width:5px}.brand{gap:4px}.brand img{width:55px;height:72px}.brand strong{font-size:29px;letter-spacing:-2px;text-shadow:-1.5px -1.5px 0 #23593f,1.5px -1.5px 0 #23593f,-1.5px 1.5px 0 #23593f,1.5px 1.5px 0 #23593f}.brand small{font-size:8px;padding:1px 7px;margin-top:5px}.series{align-self:center;margin:0;padding:4px;gap:0;font-size:9px;flex-wrap:wrap;max-width:115px;justify-content:center}.series a,.series b{padding:5px 7px}.layout{padding:17px 14px 35px}.search-panel{padding:12px;border-radius:11px}.search-panel label{font-size:11px}.search-line input{font-size:12px;padding:7px;min-height:34px}.search-line .button{font-size:12px;min-height:39px;padding:8px 12px}.hero.series-hero{grid-template-columns:1fr;min-height:0;padding:25px 22px;gap:24px;border-radius:14px}.hero-kicker{font-size:10px}.hero-kicker span{display:block;margin-top:3px}.series-hero h1{font-size:34px;line-height:1.5;margin:17px 0}.series-hero .hero-lede{font-size:12px;line-height:2}.series-facts{font-size:10px;margin:18px 0}.grade-picker{padding:18px;margin-top:16px;border-radius:12px}.grade-picker h2{font-size:18px}.grade-picker>p{font-size:10px;margin:4px 0 14px}.grade-buttons{gap:7px}.grade-buttons a{font-size:12px;min-height:45px;padding:11px 1px}.picker-print{font-size:12px;padding:12px}.series-hero .hero-figure{display:grid;grid-template-columns:135px minmax(0,1fr);align-items:center;padding:5px 12px;border-radius:12px;gap:10px;width:100%;text-align:center}.hero-figure>img{width:135px;height:145px;max-width:none}.series-hero figcaption{margin:0}.series-hero figcaption b{font-size:19px;max-width:none;margin:0}.series-hero figcaption span{font-size:10px;line-height:1.8}.recent-strip{margin:22px 0 30px}.recent-strip h2{font-size:17px;line-height:1.7}.recent-strip>div:first-child{flex-basis:calc(100% - 90px)}.grade-overview{grid-template-columns:1fr;gap:10px}.overview-card{padding:17px 18px;gap:15px}.overview-card>span{font-size:15px;min-width:48px;padding:10px 6px}.overview-card h3{font-size:17px}.overview-card p{font-size:11px}.home-notes h2{font-size:22px}.unit-grid{grid-template-columns:1fr;gap:14px}.unit-card{display:grid;grid-template-columns:95px minmax(0,1fr)}.unit-card .unit-art{grid-row:1/5;height:100%;min-height:150px}.unit-card .unit-art .art{width:64px;height:67px}.unit-card h2{font-size:21px;padding:11px 14px 0;line-height:1.5}.unit-card>p{font-size:11px;padding:8px 14px 16px}.unit-card-top{padding:17px 14px 0}.unit-bottom{grid-column:1/3;padding:13px 15px}.unit-heading{padding:23px 21px;gap:12px}.unit-heading h1{font-size:27px}.unit-heading>.art{width:65px;height:70px}.lesson-row{display:grid;grid-template-columns:30px minmax(0,1fr);padding:20px 17px;gap:12px}.lesson-row h2{font-size:21px}.lesson-row span,.lesson-row p{font-size:12px}.lesson-row .button{grid-column:2;font-size:14px;min-height:45px;justify-self:start}.lesson-number{min-width:0;font-size:26px;align-self:start}.oral-activity{font-size:13px}.unit-workspace{display:flex;gap:24px}.lesson-tools{grid-template-columns:1fr 1fr;padding:20px}.lesson-tools>.text-link{grid-column:1/3}.lesson-tools>.button:first-of-type{min-height:54px}.vocab-item>b{font-size:16px}.vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.vocab-item .art{width:60px;height:64px}.vocab-item>span{font-size:12px}.vocab-item{padding-top:19px}.print-unit{padding:19px 16px}.print-unit .print-row{display:block;padding:16px 0}.print-row>a{font-size:14px;line-height:1.8}.print-row .actions{margin-top:10px;gap:7px}.print-row .button{font-size:12px;padding:11px 10px;min-height:45px}.solve-heading h1{font-size:26px}.question legend{font-size:18px;line-height:1.8}.choice{font-size:17px;padding:15px 7px}.choices{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.choice .art{width:58px;height:62px}.choice>span{word-break:keep-all;overflow-wrap:anywhere}.match-pair{grid-template-columns:minmax(0,1fr) 22px minmax(0,1.1fr);gap:7px}.match-pair>span{font-size:18px;padding:12px 9px}.match-pair>b{font-size:20px}.match-pair select{font-size:16px;min-height:58px;padding:10px 4px}.hint{font-size:13px;line-height:1.9}.passage p{font-size:20px;line-height:1.9}.answer-input{font-size:20px;min-height:62px}.record-band .stamp-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.stamp-card{padding:14px 7px}.stamp-card>b{font-size:11px;line-height:1.7}.stamp-card>span:last-child{font-size:9px}.stamp-flower{width:52px;height:52px;line-height:46px;font-size:35px}.feedback-form{padding:20px 15px}.feedback-form label{font-size:16px}.notice-item{padding:14px}.site-footer{margin:0 14px;font-size:10px}.site-footer>p{margin-top:15px;line-height:2.5}.filter-tabs{gap:6px}.filter-tabs a{font-size:12px;padding:9px 12px;min-height:42px}.keyboard-open .mobile-nav{display:none}}
 @media(max-width:360px){.brand img{width:44px;height:65px}.brand strong{font-size:25px}.brand small{font-size:7px}.series{font-size:8px;max-width:104px}.series a,.series b{padding:5px 6px}.series-hero h1{font-size:29px}.hero.series-hero{padding:23px 17px}.grade-picker{padding:15px}.series-hero .hero-figure{grid-template-columns:110px minmax(0,1fr);gap:8px}.hero-figure>img{width:110px;height:125px}.series-hero figcaption span{font-size:9px}.unit-card{grid-template-columns:78px minmax(0,1fr)}.unit-card h2{font-size:19px}.unit-card .unit-art .art{width:56px;height:60px}.match-pair{grid-template-columns:minmax(0,1fr) 18px minmax(0,1.1fr);gap:5px}.match-pair>span{font-size:16px}.match-pair select{font-size:15px}.choice{font-size:15px}.filter-tabs a{padding:9px 10px}.record-band .stamp-grid{gap:7px}}
}

/* Series switch: the same three transparent marks as the math/Hanja sites. */
@media screen {
 header.site-header{position:relative}
 header .series{position:absolute;top:50%;right:14px;transform:translateY(-50%);display:flex;align-items:center;gap:6px;padding:5px 10px 5px 14px;border:0;border-radius:26px;background:rgba(255,255,255,.93);box-shadow:0 0 0 1.5px #cfe3d6,0 5px 14px rgba(20,107,85,.13);z-index:3;margin:0;max-width:none;flex-wrap:nowrap;align-self:auto}
 header .series .sl{display:inline;padding:0 4px 0 0;margin:0;font:700 12px/1.2 sans-serif;color:#4d6b5e;white-space:nowrap}
 header .series .si{display:inline-flex;align-items:center;gap:6px;margin:0;padding:3px 14px 3px 5px;border:0;border-radius:99px;color:#14584a;text-decoration:none;white-space:nowrap;background:transparent}
 header .series .si img{display:block;flex:none;width:44px;height:44px;object-fit:contain;background:transparent;border:0;border-radius:0;padding:0}
 header .series .si b{font:400 18px/1 'Jua','Noto Sans KR',sans-serif;letter-spacing:-.02em;background:transparent;color:inherit;border:0;padding:0}
 header .series .si i{font:800 13px/1 sans-serif;font-style:normal;opacity:.7}
 header .series .si.on{background:#146b55;color:#fff}
 header .series a.si:hover{background:#e4f5e9}
 header .series a.si:focus-visible{outline:3px solid #efb743;outline-offset:2px}
 @media(min-width:641px) and (max-width:850px){header.site-header{padding-bottom:76px}header .series{top:auto;bottom:10px;transform:none}}
 @media(max-width:640px){
  header.site-header{padding-bottom:54px;min-height:144px}
  header .brand small{display:none}
  header .series{top:auto;bottom:8px;right:8px;left:auto;transform:none;gap:4px;padding:3px 6px;border-radius:22px}
  header .series .sl{display:none}
  header .series .si{gap:3px;padding:2px 11px 2px 3px}
  header .series .si img{width:34px;height:34px}
  header .series .si b{font-size:15px}
  header .series .si i{display:none}
  header .series .si:not(.on) b{display:none}
  header .series .si:not(.on){padding:2px 6px 2px 3px}
 }
}
@media print{header .series{display:none!important}}

@font-face{font-family:Jua;src:url('/assets/fonts/Jua-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@media screen {
 h1,h2,h3,.brand strong,.grade-buttons a,.picker-print{font-family:Jua,'Malgun Gothic',sans-serif;font-weight:400!important;letter-spacing:-.025em}
 /* Keep Korean words together; exceptionally long words may still wrap safely. */
 main :is(h1,h2,h3,p,li,.button,.text-link,.picker-print,.grade-buttons a){word-break:keep-all;overflow-wrap:anywhere}
 main :is(h1,h2,h3,p){text-wrap:pretty}
 .unit-heading>div{min-width:0;flex:1}
 .brand strong{font-size:37px;letter-spacing:-.035em}
 .series-hero h1{font-size:46px;line-height:1.42}
 .sidebar .side-group summary{display:flex;align-items:center;justify-content:space-between;gap:8px;list-style:none;padding:14px 12px;cursor:pointer;font-size:14px;font-weight:700;border-radius:8px}
 .side-group summary::-webkit-details-marker{display:none}.side-group summary:hover{background:#e9f0e8}.side-group[open]>summary>b{transform:rotate(45deg)}.side-group>div{display:grid;gap:3px;padding-bottom:8px}.side-group .side-grade{display:block;border-radius:8px;margin-right:5px}.sidebar nav{gap:8px}
 .notice-intro{padding:26px 24px 30px;background:linear-gradient(120deg,#fbfdf8,#eff7ed);border:1px solid #d0e4ce;border-radius:17px;margin-bottom:18px}.notice-intro h1{font-size:29px;color:#14584a;margin:8px 0}.notice-intro p,.notice-purpose p,.notice-purpose li,.notice-steps p,.notice-use p{font-size:14px;line-height:1.9}
 .notice-purpose{background:#f3f7f3;border-radius:14px;padding:25px 24px;margin-bottom:27px}.notice-purpose h2{font-size:23px;margin-bottom:7px}.notice-purpose ul{padding-left:19px;margin:11px 0 0}.notice-purpose li{margin:3px 0}
 .notice-how>h2,.notice-use>h2,.notice-news>h2{font-size:22px;margin:0 0 12px}.notice-steps{display:grid;grid-template-columns:1fr 1fr;gap:12px}.notice-steps article{display:flex;align-items:flex-start;gap:13px;padding:21px 18px;background:#f3f7f3;border-radius:14px;min-width:0}.step-number{flex:none;display:grid;place-items:center;width:33px;height:33px;border-radius:50%;background:#146b55;color:white;font-size:21px;font-family:Jua,sans-serif}.notice-steps h3,.notice-use h3{font-size:21px;margin-bottom:6px}.notice-use{margin-top:25px}.notice-use-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.notice-use article{padding:21px;background:#f3f7f3;border-radius:14px}.notice-help{font-size:12px;color:#65796e;margin-top:17px}.notice-help a{text-decoration:underline}.notice-news{margin-top:30px;padding-top:24px;border-top:1px solid #d8e6da}
 @media(max-width:800px){.brand strong{font-size:31px}.series-hero h1{font-size:38px}}
 @media(max-width:640px){.notice-intro{padding:21px 18px}.notice-intro h1{font-size:27px}.notice-purpose{padding:21px 18px}.notice-steps,.notice-use-grid{grid-template-columns:1fr}.series-hero h1{font-size:35px}.sidebar .side-group{display:none}}
 @media(max-width:560px){.brand strong{font-size:29px}}
 @media(max-width:360px){.brand strong{font-size:25px}.series-hero h1{font-size:32px}}
 /* In a column flex layout align-self:start would shrink the action card. */
 @media(max-width:560px){.unit-workspace>.lesson-tools{align-self:stretch;width:100%;min-width:0}.unit-workspace>section{min-width:0;width:100%}}
}

@media screen{.grade-age3{background:#fff0d7}.grade-age4{background:#e6f2e4}.grade-age5{background:#eeebf8}.grade-buttons a:first-child{grid-column:auto}.grade-buttons a:nth-child(-n+3){font-size:13px}}