:root{--ink:#152e30;--muted:#637373;--paper:#f5f4ee;--line:#dfe5df;--green:#245b4b;--lime:#dbed89;--cols:14}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:default}[hidden]{display:none!important}.header{max-width:1280px;margin:auto;padding:26px 38px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;gap:13px;align-items:center;font-weight:750;line-height:1.3;font-size:18px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:5px}.brand-icon{display:grid;place-items:center;width:43px;height:43px;background:var(--green);color:var(--lime);border-radius:12px;font-size:27px}.nav{font-size:14px;color:var(--green)}main{max-width:1200px;margin:auto;padding:0 30px}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:80px;align-items:center;padding:65px 20px 70px}.hero h1{font-size:clamp(48px,6.5vw,86px);line-height:1.04;font-weight:700;letter-spacing:-4px;margin:20px 0 25px}.hero p:not(.eyebrow){max-width:470px;font-size:18px;color:var(--muted)}.eyebrow{font-size:11px;font-weight:800;letter-spacing:2.3px;color:var(--green);margin:0 0 12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--green);color:white;border:1px solid var(--green);border-radius:10px;padding:12px 22px;font-size:14px;font-weight:650;cursor:pointer;line-height:1.5}.button:hover{background:#194336}.secondary{background:transparent;color:var(--green);border-color:#b7cbc0}.secondary:hover{background:#e6eee2}.hero-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:11px;color:var(--muted);margin:26px 0}.hero-meta span:before{content:'✓';color:var(--green);margin-right:6px}.letter-art{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;background:#e8eadf;border-radius:32px;padding:26px;transform:rotate(5deg);box-shadow:10px 20px 0 #e0e5d5}.letter-art span{display:grid;place-items:center;aspect-ratio:1;background:#fafaf4;font-size:clamp(20px,3vw,36px);font-weight:700;border-radius:12px;color:#819387}.letter-art span:nth-child(-n+4){background:var(--green);color:var(--lime)}.letter-art span:nth-child(n+13){background:var(--lime);color:var(--green)}.section-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:25px 0}.section-title h2{font-size:29px;letter-spacing:-1px;margin:0}.section-title>span{font-size:13px;color:var(--muted)}.books{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,360px));gap:26px}.book-card{background:white;border:1px solid var(--line);border-radius:20px;overflow:hidden}.book-cover{min-height:295px;padding:30px;display:flex;flex-direction:column;position:relative;background:radial-gradient(ellipse at 90% 30%,#45675c,transparent 65%),#193c36;color:#f3f4de;overflow:hidden}.book-cover>span:first-child{font-size:9px;letter-spacing:2px;opacity:.7}.book-cover strong{font-size:28px;line-height:1.2;max-width:270px;margin-top:23px;letter-spacing:-.6px;z-index:1}.book-cover small{font-size:9px;letter-spacing:1.2px;margin-top:auto;z-index:1;padding-top:35px}.cover-orbit{position:absolute;font-size:130px;right:20px;bottom:-8px;color:#bfe281;opacity:.2}.book-info{padding:23px}.book-info h3{font-size:19px;line-height:1.35;margin:0}.book-info p{font-size:14px;color:var(--muted)}.book-info .button{width:100%}.how{margin:65px 0 40px;padding:30px 35px;background:#e9eddf;border-radius:20px}.how h2{margin:0;font-size:25px}.how>div{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.how p{font-size:14px;color:var(--muted)}.how strong{display:block;color:var(--green);margin-bottom:8px}footer{display:flex;flex-wrap:wrap;gap:22px;padding:30px 0;margin-top:45px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}footer span{margin-right:auto}.compact{display:block;padding:30px 0}.compact h1{font-size:clamp(32px,5vw,57px);letter-spacing:-2px;max-width:900px}.compact p:not(.eyebrow){max-width:800px}.back{display:inline-block;font-size:13px;color:var(--muted);margin-top:28px}.puzzle-list{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.puzzle-card{display:flex;gap:16px;align-items:center;padding:20px;background:white;border:1px solid var(--line);border-radius:13px}.puzzle-card:hover{border-color:var(--green);transform:translateY(-2px)}.puzzle-number{font-size:26px;color:#a0b394;font-weight:650}.puzzle-card h3{margin:0;font-size:16px}.puzzle-card p{margin:3px 0;font-size:11px;color:var(--muted)}.puzzle-card>span:last-child{margin-left:auto}.progress-label{font-size:10px;color:var(--green)}.play-heading{display:flex;gap:20px;justify-content:space-between;align-items:center;margin:30px 0}.play-heading h1{font-size:42px;letter-spacing:-1.5px;margin:0}.stats{display:flex;gap:30px}.stats span{font-size:10px;color:var(--muted);display:flex;flex-direction:column}.stats strong{font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:25px;align-items:start}.grid-panel,.word-panel{border:1px solid var(--line);border-radius:18px;background:white;padding:25px}.game-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;font-size:11px;color:var(--muted)}.quiet{border:none;background:transparent;color:var(--green);font-size:13px;padding:9px 4px}.quiet:hover{text-decoration:underline}.grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));width:100%;touch-action:none;user-select:none;gap:2px;background:#f1f4ed;padding:7px;border-radius:10px}.cell{min-width:0;aspect-ratio:1;padding:0;border:0;background:transparent;font-size:clamp(11px,1.6vw,21px);font-weight:650;color:var(--ink);border-radius:4px;line-height:1}.cell:hover{background:#e1e9d7}.cell.found{background:#dbeaa5;color:#2b5439}.cell.selected{background:var(--green);color:white}.cell.hint{background:#efc879;color:#172c25;box-shadow:inset 0 0 0 2px #ba832e}.instructions{font-size:11px;color:var(--muted);margin:18px 0 8px}#status{font-size:13px;color:var(--green);margin:0;min-height:21px}.word-panel h2{font-size:21px;margin:5px 0 20px}#word-list{padding:0;list-style:none;display:grid;gap:11px;margin:0 0 25px}#word-list li{font-size:14px;display:flex;align-items:center;gap:10px}.word-check{color:#a0afa0;font-size:17px}.done{color:#7d8b7e;text-decoration:line-through}.done .word-check{color:var(--green)}.word-panel .button{width:100%;padding:12px 8px;font-size:11px}.word-panel>.quiet{width:100%;margin-top:9px}.save-note{font-size:11px;color:var(--muted)}#complete{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}#paused{text-align:center;min-height:350px;padding-top:90px;color:var(--muted)}.admin-card{background:white;border:1px solid var(--line);border-radius:17px;padding:28px;margin:22px 0}.narrow{max-width:680px;margin:35px auto}.admin-card h2{margin-top:0}.admin-card p{color:var(--muted)}label{display:block;font-size:13px;font-weight:600;margin:18px 0}input,textarea{display:block;width:100%;border:1px solid #c7d4c9;border-radius:7px;padding:11px;background:#fbfcf8;margin-top:7px;color:var(--ink)}textarea{min-height:100px;resize:vertical}.check-label{display:flex;gap:10px;align-items:center}.check-label input{width:auto;margin:0}summary{cursor:pointer;font-weight:650}.notice{padding:16px 20px;background:#e0ebcc;border-radius:10px}.error{background:#fae5dd;color:#873c28}.delete-area{margin-top:25px;border-top:1px solid var(--line);padding-top:18px;color:#883e30}.danger{background:#963f30;border-color:#963f30}.logout{text-align:right}
@media(max-width:850px){.hero{gap:35px;padding:45px 0}.puzzle-list{grid-template-columns:repeat(2,1fr)}.game-layout{grid-template-columns:minmax(0,1fr) 220px;gap:15px}.grid-panel,.word-panel{padding:15px}.hero h1{letter-spacing:-2px}.cell{font-size:clamp(11px,1.8vw,18px)}}@media(max-width:650px){.header{padding:18px}.brand{font-size:14px}.brand-icon{width:36px;height:36px}.nav{font-size:11px}main{padding:0 15px}.hero{grid-template-columns:1fr;gap:30px}.hero h1{font-size:58px}.hero p:not(.eyebrow){font-size:16px}.letter-art{max-width:300px;margin:0 auto 10px;transform:rotate(3deg)}.letter-art span{font-size:27px}.section-title h2{font-size:23px}.books{grid-template-columns:1fr}.how{padding:25px;margin-top:40px}.how>div{grid-template-columns:1fr;gap:5px}.puzzle-list{grid-template-columns:1fr}.compact h1{font-size:38px}.play-heading{align-items:start}.play-heading h1{font-size:30px}.play-heading .eyebrow{font-size:8px}.stats{gap:12px}.stats strong{font-size:15px}.stats span{font-size:8px}.game-layout{grid-template-columns:1fr}.grid-panel{padding:12px}.cell{font-size:clamp(11px,3.5vw,19px)}.grid{gap:1px;padding:4px}.game-toolbar{margin-bottom:10px;font-size:9px}#word-list{grid-template-columns:repeat(2,1fr);gap:12px}.word-panel{padding:22px}.admin-card{padding:20px}.section-title h1{font-size:28px}.section-title>a{font-size:11px}}
@media print{.header,.back,.game-toolbar,footer,.word-panel button,.instructions,.save-note,#complete{display:none}body{background:white}.game-layout{grid-template-columns:1fr 200px}.cell{font-size:15px}.grid-panel,.word-panel{border:0}.grid{background:white}.cell.found{background:transparent}.stats{display:none}}
/* v1.1 — colour edition */
:root{--ink:#252342;--muted:#686580;--paper:#f7f7ff;--line:#e5e2f3;--green:#6546dd;--lime:#fff18b}
body{background:radial-gradient(ellipse at 3% 3%,#ede4ff 0,transparent 32%),radial-gradient(ellipse at 95% 35%,#e0f7fa 0,transparent 33%),#f7f7ff}
.header{border-bottom:0;padding-top:24px;padding-bottom:24px}.brand-icon{background:linear-gradient(135deg,#7956ef,#ee63a3);color:white;box-shadow:0 6px 18px #7956ef30}.nav{background:white;padding:9px 17px;border-radius:30px;border:1px solid var(--line);font-weight:650}
.hero{margin:18px 0 45px;padding:54px 45px;gap:50px;background:linear-gradient(120deg,#eeebff,#fcecf7 55%,#e6f9fa);border:1px solid #fff;border-radius:30px;position:relative;box-shadow:0 16px 45px #51469109}
.hero h1{font-weight:850;letter-spacing:-3.7px;background:linear-gradient(105deg,#4933a2,#a739ac 62%,#ed668b);background-clip:text;-webkit-background-clip:text;color:transparent}.hero .eyebrow{display:inline-block;background:#fff9;border:1px solid white;padding:7px 13px;border-radius:30px;font-size:10px;letter-spacing:1.7px}.hero p:not(.eyebrow){color:#605c7c}.hero-meta{gap:10px}.hero-meta span{background:#ffffff9c;border-radius:30px;padding:5px 10px;font-weight:600}.hero-meta span:before{color:#247969}
.button{border:0;background:linear-gradient(110deg,#7151e8,#9852d9);box-shadow:0 5px 14px #7851dd24;border-radius:12px;padding:13px 23px;transition:transform .18s,box-shadow .18s}.button:hover{background:linear-gradient(110deg,#6040d2,#8740c8);box-shadow:0 8px 20px #7851dd38;transform:translateY(-2px)}.button.secondary{background:#f2edff;color:#5937c6;border:1px solid #dcd0fc;box-shadow:none}.button.secondary:hover{background:#e8defc}
.letter-art{background:#ffffff90;border:1px solid #fff;padding:24px;gap:11px;border-radius:27px;transform:rotate(6deg);box-shadow:12px 16px 0 #7753de13,0 18px 40px #68509a14}.letter-art span{background:white;color:#928cab;box-shadow:0 3px 0 #4e3b7c0b;border-radius:13px}.letter-art span:nth-child(-n+4){background:linear-gradient(135deg,#7858ec,#a074ed);color:white}.letter-art span:nth-child(n+9):nth-child(-n+12){background:#ffe3ed;color:#ba4a79}.letter-art span:nth-child(n+13){background:linear-gradient(135deg,#31bcb5,#70d9bd);color:#143d47}
.section-title h2{font-weight:800}.books{grid-template-columns:repeat(auto-fit,minmax(280px,360px))}.book-card{border:1px solid #e8e3f5;box-shadow:0 8px 30px #45307809;border-radius:23px;transition:transform .2s,box-shadow .2s}.book-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px #45307817}.book-cover{background:radial-gradient(circle at 90% 10%,#e46cafaa,transparent 50%),radial-gradient(circle at 0 100%,#23b9c399,transparent 55%),linear-gradient(145deg,#4731a8,#7c47cd);color:white;min-height:300px}.book-cover strong{font-size:30px;font-weight:850;letter-spacing:-.8px}.book-cover>span:first-child{opacity:1;background:#ffffff21;border:1px solid #ffffff3b;border-radius:20px;padding:5px 10px;align-self:flex-start;font-weight:650;font-size:8px}.cover-orbit{color:#ffe787;opacity:.5;right:8px;bottom:0;font-size:150px}.book-cover small{font-weight:700;letter-spacing:1.4px}.book-card:nth-child(4n+2) .book-cover{background:radial-gradient(circle at 90% 0,#ffc37488,transparent 65%),linear-gradient(145deg,#c94691,#e86b7f)}.book-card:nth-child(4n+3) .book-cover{background:radial-gradient(circle at 100% 0,#a6edb588,transparent 65%),linear-gradient(145deg,#087b96,#1cb4ad)}.book-card:nth-child(4n+4) .book-cover{background:radial-gradient(circle at 100% 0,#feda9888,transparent 65%),linear-gradient(145deg,#ba5718,#ec9453)}.book-info{padding:25px}.book-info h3{font-weight:800}
.how{background:linear-gradient(110deg,#eee8ff,#e4f6f7);border:1px solid white;border-radius:24px;padding:32px 35px}.how strong{color:#5a3dbb}.how>div p:nth-child(2) strong{color:#a63779}.how>div p:nth-child(3) strong{color:#167d80}footer{border-color:#ddd8ed}
.compact{padding:35px 40px;margin-top:25px}.compact h1{font-size:clamp(32px,5vw,57px);letter-spacing:-2px}.back:hover{color:var(--green)}.puzzle-card{border-radius:16px;box-shadow:0 4px 15px #54377606;border-top:3px solid #b29cef;transition:transform .15s}.puzzle-card:nth-child(3n+2){border-top-color:#ef9cba}.puzzle-card:nth-child(3n){border-top-color:#73d1cc}.puzzle-card:hover{border-color:#ad95ec}.puzzle-number{color:#8463db;background:#f0eaff;padding:3px 10px;border-radius:10px;font-size:23px}.puzzle-card:nth-child(3n+2) .puzzle-number{color:#b83f7b;background:#fff0f6}.puzzle-card:nth-child(3n) .puzzle-number{color:#167d80;background:#e8f8f6}
.play-heading h1{font-weight:850;color:#51368e}.stats{background:#ffffffb8;border:1px solid white;border-radius:15px;padding:12px 20px}.stats strong{color:#6846c8}.grid-panel,.word-panel{border:1px solid #e7e0f2;border-radius:23px;box-shadow:0 8px 26px #59498108}.grid-panel{border-top:4px solid #9473e7}.word-panel{border-top:4px solid #58c6c2}.word-panel .eyebrow{color:#218485}.grid{background:#f3f0fc;border:1px solid #e7def7;padding:8px;border-radius:12px}.cell{color:#34304d}.cell:hover{background:#e6dffa}.cell.found{background:#bceee2;color:#164c45}.cell.selected{background:#7751db;color:white}.cell.hint{background:#ffda80;color:#653d0d;box-shadow:inset 0 0 0 2px #d79b2c}.word-check{color:#a7a0bd}.done{color:#49776e}.done .word-check{color:#14816d}#complete{border:1px solid #c5e9e0;background:#ecfaf5;border-radius:14px;padding:18px}#complete h2{color:#197764}.admin-card{border-radius:20px;box-shadow:0 6px 24px #54377607}input,textarea{background:#faf8ff;border-color:#ddd3ef}.notice{background:#e8f7ee;color:#27694a}.notice.error{background:#ffe9ed;color:#99324c}.danger{background:#be3f5e}.danger:hover{background:#a82b49}
@media(max-width:850px){.hero{padding:35px 25px;gap:30px}.hero h1{letter-spacing:-2px}.stats{padding:10px 15px}}
@media(max-width:650px){.header{padding:18px 15px;gap:10px}.nav{padding:7px 12px;white-space:nowrap;font-size:10px}.hero{margin:12px 0 35px;padding:28px 22px;gap:28px;border-radius:24px}.hero h1{font-size:52px;letter-spacing:-2px;margin:18px 0}.hero .eyebrow{font-size:8px;letter-spacing:1.1px}.hero-meta{gap:6px}.hero-meta span{font-size:9px;padding:4px 7px}.letter-art{width:100%;max-width:265px;padding:18px;gap:9px;transform:rotate(4deg);margin-bottom:16px}.compact{padding:25px 22px}.compact h1{font-size:34px}.stats{padding:9px 11px;gap:10px}.play-heading{gap:10px}.play-heading h1{font-size:29px}.play-heading .eyebrow{max-width:200px}.grid{padding:4px}.cell{font-size:clamp(11px,3.5vw,19px)}.how{padding:25px}.book-cover{min-height:285px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.book-card,.puzzle-card{transition:none}.button:hover,.book-card:hover,.puzzle-card:hover{transform:none}}
@media print{body{background:white}.grid-panel,.word-panel{box-shadow:none;border:0}.grid{background:white}.cell.found{background:transparent}.hero h1{background:none;color:black}.stats{display:none}}
/* v1.2 — compact collection thumbnails */
.books{grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;align-items:start}
.book-card{border-radius:16px;min-width:0}
.book-cover{min-height:190px;padding:18px;gap:0}
.book-cover>span:first-child{font-size:6px;letter-spacing:1px;padding:4px 6px;max-width:100%}
.book-cover strong{font-size:20px;line-height:1.2;letter-spacing:-.4px;margin-top:16px;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:4;overflow:hidden}
.book-cover small{font-size:7px;letter-spacing:.6px;padding-top:20px}
.cover-orbit{font-size:90px;bottom:3px;right:6px;opacity:.3}
.book-info{padding:16px}
.book-info h3{font-size:14px;line-height:1.4;min-height:39px;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.book-info p{font-size:11px;line-height:1.5;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;min-height:33px;margin:9px 0 14px}
.book-info .button{font-size:11px;padding:10px 5px;min-height:40px;border-radius:9px}
@media(max-width:1100px){.books{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:850px){.books{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:650px){.books{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.book-cover{min-height:175px;padding:14px}.book-cover strong{font-size:17px;margin-top:14px}.book-cover small{font-size:6px;letter-spacing:.3px;padding-top:16px}.book-info{padding:12px}.book-info h3{font-size:13px;min-height:37px}.book-info p{font-size:10px;min-height:30px}.book-info .button{font-size:10px;padding:10px 4px}.cover-orbit{font-size:75px}}
@media(max-width:340px){.books{grid-template-columns:1fr}.book-cover{min-height:170px}.book-cover strong{font-size:21px}}
/* v1.3 — original front covers */
.book-cover.with-image{padding:0;min-height:0;display:block;background:#eeedf5;aspect-ratio:2/3;overflow:hidden}
.book-cover.with-image img{display:block;width:100%;height:100%;object-fit:contain;transition:transform .25s}
.book-cover.with-image:hover img{transform:scale(1.025)}
.admin-cover{display:block;width:120px;height:auto;max-height:200px;object-fit:contain;border-radius:8px;border:1px solid var(--line);margin:15px 0}
.cover-editor{border-top:1px solid var(--line);padding-top:18px;margin-top:25px}
@media(prefers-reduced-motion:reduce){.book-cover.with-image img{transition:none}.book-cover.with-image:hover img{transform:none}}
.book-cover.with-image{height:210px;aspect-ratio:auto}
@media(max-width:650px){.book-cover.with-image{height:180px}}