@font-face{font-family:"Montserrat";src:url(../fonts/montserrat-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Montserrat";src:url(../fonts/montserrat-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Montserrat";src:url(../fonts/montserrat-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Playfair Display";src:url(../fonts/playfair-display-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  --green:#395A4D;      /* logo: River & Valley */
  --green-deep:#2A4339;
  --sage:#9BB0A2;       /* logo: Publications / small mountain */
  --river:#95B5C6;      /* logo: river */
  --stone:#CBD2C0;      /* logo: snow / shadow */
  --paper:#F7F5EF;
  --card:#FFFFFF;
  --ink:#24332D;
  --muted:#5E6E66;
  --line:#DDE2D6;
  --sun:#F2C94C;        /* the yellow "FOR ADULTS" on the covers */
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 "Montserrat",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--green)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:"Playfair Display",Georgia,serif;font-weight:600;color:var(--green-deep);line-height:1.2;margin:0}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--sage);margin:0 0 .6rem}

/* ---------- Top bar ---------- */
.top{border-bottom:1px solid var(--line);background:rgba(247,245,239,.92);position:sticky;top:0;z-index:5;backdrop-filter:saturate(1.2) blur(6px)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.top-logo img{height:44px;width:auto}
.top nav{display:flex;gap:22px}
.top nav a{text-decoration:none;color:var(--ink);font-size:.86rem;font-weight:600}
.top nav a:hover{color:var(--green)}

/* ---------- Hero ---------- */
.hero{padding:44px 0 56px;text-align:center}
.hero-logo{width:min(320px,72vw);height:auto;margin:0 auto 28px}
.hero h1{font-size:clamp(2rem,4.6vw,3.2rem);max-width:21ch;margin:0 auto}
.hero p.lead{max-width:56ch;margin:18px auto 0;color:var(--muted);font-size:1.08rem}

/* mini letter grid: highlighted letters spell the hidden phrase */
.grid-demo{display:inline-grid;grid-template-columns:repeat(11,1fr);gap:4px;margin:36px auto 0;padding:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px -18px rgba(42,67,57,.45)}
.grid-demo span{width:clamp(22px,6.2vw,34px);aspect-ratio:1;display:grid;place-items:center;font-weight:600;font-size:clamp(.72rem,2.4vw,1rem);color:#9AA59F;border-radius:6px}
.grid-demo span.w{color:var(--ink);background:#EEF2EA}
.grid-demo span.h{color:#fff;background:var(--green)}
.grid-caption{display:block;font-size:.82rem;color:var(--muted);margin-top:10px}
.grid-caption b{color:var(--green)}

.hero-row{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center;text-align:left;margin-top:8px}
.hero-row h1{margin:0;max-width:none}
.hero-row p.lead{margin:16px 0 0}
.hero-row .grid-demo{margin:28px 0 0}
.hero-row .grid-caption{text-align:left}
.hero-row .cta{justify-content:flex-start}
.hero-media{margin:0}
.video-frame{position:relative;border-radius:16px;overflow:hidden;background:#0B2148;box-shadow:0 24px 48px -24px rgba(11,33,72,.55)}
.video-frame video{display:block;width:100%;height:auto;aspect-ratio:16/9}
.video-ctrls{position:absolute;right:12px;bottom:12px;display:flex;gap:8px}
.vbtn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px 7px 9px;border:0;border-radius:999px;background:rgba(255,255,255,.92);color:var(--green-deep);font:600 .78rem "Montserrat",system-ui,sans-serif;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.vbtn:hover{background:#fff}
.vbtn:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
.vbtn svg{width:18px;height:18px}
.play-btn .i-play{display:none}
.play-btn.paused .i-play{display:block}
.play-btn.paused .i-pause{display:none}
.sound-btn .i-on{display:none}
.sound-btn.on .i-on{display:block}
.sound-btn.on .i-off{display:none}
.hero-media figcaption{font-size:.82rem;color:var(--muted);margin-top:10px;text-align:center}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;text-decoration:none;border:2px solid var(--green);transition:background .15s,color .15s}
.btn-solid{background:var(--green);color:#fff}
.btn-solid:hover{background:var(--green-deep);border-color:var(--green-deep)}
.btn-ghost{color:var(--green);background:transparent}
.btn-ghost:hover{background:var(--green);color:#fff}

/* ---------- Sections ---------- */
section{padding:72px 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}
.section-head p{color:var(--muted);margin:12px 0 0}
.alt{background:#EEF1E9}

/* ---------- Book cards ---------- */
.books{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.book{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start}
.book img{width:100%;height:auto;border-radius:6px;box-shadow:0 14px 28px -14px rgba(0,0,0,.45)}
.book .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--green);background:#E4ECE6;padding:4px 10px;border-radius:999px;margin-bottom:10px}
.book h3{font-size:1.45rem}
.book .sub{font-size:.85rem;color:var(--muted);margin:4px 0 12px}
.book ul{margin:0 0 16px;padding:0;list-style:none;font-size:.9rem}
.book li{padding-left:22px;position:relative;margin:4px 0}
.book li::before{content:"";position:absolute;left:4px;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--river)}
.book-wide{grid-column:1/-1;grid-template-columns:260px 1fr;padding:32px}
.book-wide h3{font-size:1.8rem}

/* ---------- USP chips ---------- */
.book ul.usps{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px;padding:0}
.book ul.usps li{display:inline-flex;align-items:center;gap:6px;margin:0;padding:5px 10px 5px 7px;border-radius:999px;background:#FFF6D6;border:1px solid #F2DE9B;color:var(--green-deep);font-size:.76rem;font-weight:700}
.book ul.usps li::before{display:none}
.book ul.usps svg{width:16px;height:16px;flex:none;color:var(--green)}

/* ---------- Buy buttons ---------- */
.buy-label{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.stores{display:flex;flex-wrap:wrap;gap:8px}
.stores a{display:inline-flex;align-items:center;gap:7px;padding:7px 11px 7px 8px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink);font-size:.82rem;font-weight:600;background:#FBFBF8;transition:border-color .15s,transform .15s}
.stores a:hover{border-color:var(--green);transform:translateY(-1px)}
.stores svg{width:22px;height:15px;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.08);flex:none}

/* ---------- How it works ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;font-weight:700;margin-bottom:14px}
.step h3{font-size:1.2rem;margin-bottom:6px}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- How we make our puzzles ---------- */
.craft{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.craft-item{grid-column:span 2;border-top:3px solid var(--green);padding-top:18px}
.craft-item:nth-child(4),.craft-item:nth-child(5){grid-column:span 3}
.craft-item .num{font-family:"Playfair Display",Georgia,serif;font-size:1.9rem;color:var(--river);line-height:1}
.craft-item h3{font-size:1.25rem;margin:8px 0 8px}
.craft-item p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- FAQ ---------- */
.faq{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 4px;font-weight:600;font-size:1.02rem;color:var(--green-deep)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#E4ECE6;color:var(--green);font-size:1.2rem;font-weight:600;transition:transform .2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--green)}
.faq-item p{margin:0 4px 20px;color:var(--muted);max-width:68ch}

/* ---------- How to solve ---------- */
.solve{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.solve-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.solve-card h3{font-size:1.2rem;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.solve-card h3::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--green);flex:none}
.solve-card p{margin:0 0 10px;color:var(--muted);font-size:.93rem}
.solve-card p.tip{background:#F3F6F0;border-radius:8px;padding:10px 12px;color:var(--ink);font-size:.86rem;margin-top:12px}
.solve-wide{grid-column:span 2}
.dirs{display:grid;grid-template-columns:repeat(3,44px);gap:4px;margin-top:14px}
.dirs span{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:6px;color:var(--green)}
.dirs span svg{width:22px;height:22px}
.dirs span.c{font-weight:700;color:var(--ink);background:#EEF2EA}
table.mini{width:100%;border-collapse:collapse;font-size:.82rem;margin-top:12px}
table.mini th{text-align:left;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding:6px 8px;border-bottom:2px solid var(--line)}
table.mini td{padding:7px 8px;border-bottom:1px solid var(--line)}
table.mini td:last-child{font-weight:600;letter-spacing:.06em;color:var(--green)}
.phrase-boxes{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px}
.phrase-boxes .word{display:flex;gap:4px}
.phrase-boxes i{font-style:normal;width:30px;height:36px;display:grid;place-items:center;border:2px solid var(--green);border-radius:5px;font-weight:700;color:var(--green-deep);background:#fff}

/* ---------- Newsletter / contact ---------- */
.news{background:var(--green);color:#E8EFEA;border-radius:22px;padding:48px;display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
.news h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem)}
.news p{margin:12px 0 0}
.news .btn{border-color:#fff;background:#fff;color:var(--green)}
.news .btn:hover{background:var(--sun);border-color:var(--sun);color:var(--green-deep)}
.news small{display:block;margin-top:12px;color:#BFD0C6;font-size:.8rem}
.contact{text-align:center}
.contact a.mail{font-size:clamp(.95rem,4.2vw,1.25rem);overflow-wrap:anywhere;font-weight:600;text-decoration:none;border-bottom:2px solid var(--river)}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:32px 0;font-size:.82rem;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--muted)}

/* ---------- More stores dropdown ---------- */
.more{margin-top:8px;font-size:.82rem}
.more summary{cursor:pointer;color:var(--muted);font-weight:600;list-style:none;display:inline-flex;align-items:center;gap:6px;padding:4px 0}
.more summary::-webkit-details-marker{display:none}
.more summary::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .15s}
.more[open] summary::after{transform:rotate(225deg) translateY(-2px)}
.more summary:hover{color:var(--green)}
.more ul.store-list{list-style:none;margin:8px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:4px 12px;font-size:.84rem}
.more ul.store-list li{padding:0;margin:0}
.more ul.store-list li::before{display:none}
.more ul.store-list a{text-decoration:none;color:var(--ink);display:block;padding:4px 0}
.more ul.store-list a:hover{color:var(--green);text-decoration:underline}
.more ul.store-list span{color:var(--muted)}

/* ---------- Newsletter form area ---------- */
.news .consent{font-size:.78rem;color:#BFD0C6;margin-top:12px;line-height:1.5}
.news .consent a{color:#fff}

/* ---------- Infomaniak sign-up form, styled for the site ---------- */
.rv-form .inf-content{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:start}
.rv-form .inf-input{margin:0}
.rv-form .inf-input input{width:100%;height:50px;border:2px solid transparent;border-radius:999px;padding:0 20px;font:500 1rem "Montserrat",system-ui,sans-serif;color:var(--ink);background:#fff;outline:none}
.rv-form .inf-input input:focus{border-color:var(--sun)}
.rv-form .inf-input input::placeholder{color:#8A968F}
.rv-form .inf-input.inf-error input{border-color:#F28B82}
.rv-form .inf-input .inf-message{display:block;color:#FFD6D1;font-size:.82rem;margin:6px 0 0 18px}
.rv-form .inf-submit input{height:50px;padding:0 24px;border:2px solid #fff;border-radius:999px;background:#fff;color:var(--green);font:600 .95rem "Montserrat",system-ui,sans-serif;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.rv-form .inf-submit input:hover{background:var(--sun);border-color:var(--sun);color:var(--green-deep)}
.rv-form .inf-submit input.disabled{opacity:.5;cursor:default}
.rv-form .inf-rgpd{grid-column:1/-1;font-size:.78rem;color:#BFD0C6;line-height:1.5;margin-top:4px}
.rv-form .inf-rgpd a{color:#fff}
.rv-form .inf-input{order:1}.rv-form .inf-submit{order:2}.rv-form altcha-widget{grid-column:1/-1;order:3}.rv-form .inf-rgpd{order:4}
.rv-form .inf-success h4{font:600 1.05rem/1.5 "Montserrat",system-ui,sans-serif;color:#fff;margin:0;background:rgba(255,255,255,.1);border-left:4px solid var(--sun);padding:14px 16px;border-radius:8px}
.rv-form .inf-success p{display:none}
.rv-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (max-width:560px){.rv-form .inf-content{grid-template-columns:1fr}.rv-form .inf-submit input{width:100%}}

/* ---------- Sub pages (privacy, newsletter steps) ---------- */
.page{max-width:760px;margin:0 auto;padding:56px 20px 72px}
.page h1{font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:8px}
.page h2{font-size:1.35rem;margin:36px 0 8px}
.page p,.page li{color:var(--ink)}
.page .meta{color:var(--muted);font-size:.88rem;margin:0 0 28px}
.page ul{padding-left:20px}
.notice{text-align:center;max-width:620px;margin:0 auto;padding:80px 20px 96px}
.notice .icon{width:72px;height:72px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;margin:0 auto 22px}
.notice .icon svg{width:34px;height:34px}
.notice h1{font-size:clamp(1.9rem,4.4vw,2.7rem)}
.notice p{color:var(--muted);font-size:1.05rem;margin:14px 0 0}
.notice .btn{margin-top:30px}
.placeholder{background:#FFF3C4;padding:0 4px;border-radius:3px}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero-row{grid-template-columns:1fr;text-align:center;gap:36px}
  .hero-row .grid-demo{margin:28px auto 0}
  .hero-row .grid-caption{text-align:center}
  .hero-row .cta{justify-content:center}
  .hero-row h1{max-width:21ch;margin:0 auto}
  .hero-row p.lead{margin:16px auto 0}
  .books{grid-template-columns:1fr}
  .book-wide{grid-template-columns:200px 1fr;padding:24px}
  .steps{grid-template-columns:1fr}
  .solve{grid-template-columns:1fr 1fr}
  .craft{grid-template-columns:1fr 1fr}
  .craft-item,.craft-item:nth-child(4),.craft-item:nth-child(5){grid-column:auto}
  .craft-item:nth-child(5){grid-column:1/-1}
  .top nav{gap:14px}
  .news{grid-template-columns:1fr;padding:36px 28px}
}
@media (max-width:560px){
  body{font-size:16px}
  .top nav{display:none}
  .hero{padding:44px 0 40px}
  section{padding:52px 0}
  .book,.book-wide{grid-template-columns:1fr}
  .solve{grid-template-columns:1fr}
  .craft{grid-template-columns:1fr}
  .craft-item:nth-child(5){grid-column:auto}
  .solve-wide{grid-column:auto}
  .phrase-boxes i{width:24px;height:30px;font-size:.85rem}
  .book img{max-width:240px;margin:0 auto}
  .grid-demo{gap:3px;padding:10px}
  .video-ctrls{right:8px;bottom:8px;gap:6px}
  .vbtn{padding:7px}
  .vbtn .lbl{display:none}
}