:root{
  --ink:#1a1a1a; --ink-2:#2a2b26; --olive:#4b5320; --olive-2:#6b7339; --olive-3:#8a9156;
  --sage:#c9cdb0; --cream:#f6f2e7; --paper:#fbf8f0; --line:#e3ddc9; --muted:#5f6052;
  --radius:22px; --shadow:0 10px 30px rgba(26,26,26,.08);
  --font: "Nunito","Quicksand",ui-rounded,"SF Pro Rounded",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --display: "Zen Maru Gothic","M PLUS Rounded 1c",ui-rounded,var(--font);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:20px;line-height:1.6;color:var(--ink);background:var(--paper);
  background-image:radial-gradient(rgba(75,83,32,.09) 1.2px,transparent 1.3px);background-size:22px 22px;}
a{color:var(--olive)}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.sr{position:absolute;left:-9999px}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(26,26,26,.94);backdrop-filter:blur(6px);color:var(--cream)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--display);font-weight:800;letter-spacing:.04em;color:var(--cream);text-decoration:none;font-size:20px;display:flex;align-items:center;gap:10px}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--olive-3);box-shadow:0 0 0 4px rgba(138,145,86,.25)}
.nav ul{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.nav a.lnk{color:var(--cream);text-decoration:none;font-size:16px;padding:8px 14px;border-radius:999px}
.nav a.lnk:hover,.nav a.lnk.on{background:var(--olive)}
@media(max-width:640px){.nav ul li.hide-sm{display:none}}

/* hero */
.hero{background:var(--ink);color:var(--cream);position:relative;overflow:hidden;padding:84px 0 110px}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;background:var(--paper);
  clip-path:polygon(0 60%,8% 40%,16% 62%,26% 30%,36% 58%,48% 35%,60% 64%,72% 32%,84% 60%,92% 38%,100% 55%,100% 100%,0 100%)}
.hero .wrap{display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center;position:relative;z-index:1}
.kicker{display:inline-block;font-size:15px;letter-spacing:.18em;text-transform:uppercase;color:var(--sage);border:1.5px solid var(--olive-2);border-radius:999px;padding:6px 16px}
.hero h1{font-family:var(--display);font-size:clamp(52px,9vw,104px);line-height:1;margin:22px 0 18px;font-weight:900;letter-spacing:-.01em}
.hero h1 span{color:var(--olive-3)}
.hero p.tag{font-size:clamp(20px,2.4vw,26px);color:#e7e3d6;max-width:560px;margin:0 0 30px}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;text-decoration:none;padding:14px 24px;border-radius:999px;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn.primary{background:var(--olive);color:var(--cream)}
.btn.primary:hover{background:var(--olive-2)}
.btn.ghost{border-color:var(--cream);color:var(--cream);background:transparent}
.btn.ghost:hover{background:rgba(246,242,231,.08)}
.btn.dark{background:var(--ink);color:var(--cream)}
.btn.light{background:var(--cream);color:var(--ink);border-color:var(--line)}

/* manga speech bubble art */
.hero-art{position:relative;aspect-ratio:1/1;max-width:400px;justify-self:center;width:100%}
.panel{position:absolute;inset:6% 4% 10% 10%;border:3px solid var(--cream);border-radius:6px;transform:rotate(-3deg);
  background:repeating-linear-gradient(135deg,rgba(246,242,231,.05) 0 2px,transparent 2px 12px)}
.panel.two{inset:16% 12% 2% 2%;transform:rotate(4deg);border-color:var(--olive-3);background:none}
.bubble{position:absolute;top:18%;left:20%;right:16%;background:var(--cream);color:var(--ink);border-radius:50% 50% 48% 52%/55% 50% 50% 45%;
  padding:44px 20px;text-align:center;font-family:var(--display);font-weight:900;font-size:clamp(34px,5vw,52px);box-shadow:8px 8px 0 var(--olive)}
.bubble::after{content:"";position:absolute;bottom:-26px;left:28%;border:18px solid transparent;border-top:30px solid var(--cream);border-bottom:0;transform:skewX(-20deg)}
.sparkle{position:absolute;width:26px;height:26px;background:var(--olive-3);clip-path:polygon(50% 0,62% 38%,100% 50%,62% 62%,50% 100%,38% 62%,0 50%,38% 38%)}
.sparkle.s1{top:6%;right:10%}.sparkle.s2{bottom:16%;left:4%;width:18px;height:18px;background:var(--cream)}.sparkle.s3{bottom:6%;right:22%;width:14px;height:14px}
.cat-ears{position:absolute;bottom:12%;right:8%;width:110px;height:70px}
@media(max-width:820px){.hero{padding:56px 0 90px}.hero .wrap{grid-template-columns:1fr}.hero-art{max-width:300px}}

/* sections */
section.block{padding:72px 0}
.eyebrow{font-size:14px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--olive)}
h2{font-family:var(--display);font-size:clamp(34px,5vw,50px);line-height:1.1;margin:6px 0 18px;font-weight:900}
.lead{font-size:22px;color:var(--ink-2);max-width:720px}

/* notebook card */
.notebook{background:var(--cream);border-radius:var(--radius);box-shadow:var(--shadow);position:relative;padding:40px 40px 40px 72px;
  background-image:linear-gradient(90deg,transparent 52px,rgba(75,83,32,.35) 52px,rgba(75,83,32,.35) 54px,transparent 54px),
  repeating-linear-gradient(transparent 0 37px,var(--line) 37px 38px);background-color:var(--cream)}
.notebook::before{content:"";position:absolute;left:18px;top:30px;bottom:30px;width:14px;
  background:radial-gradient(circle,var(--paper) 5px,rgba(26,26,26,.25) 6px,transparent 7px) 0 0/14px 38px repeat-y}
.notebook p{margin:0;font-size:22px;line-height:38px}
@media(max-width:640px){.notebook{padding:28px 22px 28px 56px}.notebook p{font-size:20px}}

/* chiyo */
.chiyo{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.polaroid{background:#fff;padding:16px 16px 60px;border-radius:6px;box-shadow:0 14px 34px rgba(26,26,26,.18);transform:rotate(-2.5deg);position:relative;max-width:400px;justify-self:center}
.polaroid img{aspect-ratio:4/5;object-fit:cover;object-position:50% 40%;width:100%;height:auto;border-radius:2px;filter:saturate(.95)}
.polaroid .cap{position:absolute;bottom:16px;left:0;right:0;text-align:center;font-family:var(--display);font-weight:800;font-size:22px}
.polaroid .tape{position:absolute;top:-14px;left:50%;width:120px;height:30px;transform:translateX(-50%) rotate(3deg);background:rgba(138,145,86,.55)}
.chiyo .mini-bubble{display:inline-block;background:var(--ink);color:var(--cream);border-radius:18px;padding:8px 18px;font-weight:800;font-size:17px;position:relative;margin-bottom:8px}
.chiyo .mini-bubble::after{content:"";position:absolute;left:24px;bottom:-10px;border:10px solid transparent;border-top-color:var(--ink);border-bottom:0}
.facts{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.facts li{background:#fff;border:2px solid var(--ink);border-radius:999px;padding:6px 16px;font-size:17px;font-weight:700}
@media(max-width:820px){.chiyo{grid-template-columns:1fr;gap:30px}}

/* loves */
.loves{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px;margin-top:28px}
.love{background:#fff;border:2px solid var(--ink);border-radius:var(--radius);padding:26px;box-shadow:6px 6px 0 var(--olive);transition:transform .15s,box-shadow .15s}
.love:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--olive)}
.love .ic{width:54px;height:54px;border-radius:16px;background:var(--ink);display:grid;place-items:center;margin-bottom:14px}
.love .ic svg{width:30px;height:30px}
.love h3{margin:0 0 6px;font-size:22px;font-family:var(--display);font-weight:900}
.love p{margin:0;color:var(--muted);font-size:18px}

/* study buddy card */
.sb-card{background:var(--olive);color:var(--cream);border-radius:28px;padding:48px;display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center;position:relative;overflow:hidden;text-decoration:none}
.sb-card::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(transparent 0 35px,rgba(246,242,231,.08) 35px 36px)}
.sb-card>*{position:relative}
.sb-card h2{color:var(--cream)}
.sb-card p{font-size:21px;margin:0 0 24px;color:#eef0e0}
.sb-card .big-ic{justify-self:center;width:170px;height:170px;border-radius:50%;background:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 10px rgba(246,242,231,.12)}
.sb-card:hover .btn.dark{background:#000}
@media(max-width:720px){.sb-card{grid-template-columns:1fr;padding:34px}.sb-card .big-ic{width:120px;height:120px;order:-1;justify-self:start}}

footer{background:var(--ink);color:#bdbcae;padding:34px 0;font-size:16px;margin-top:40px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:var(--sage)}

/* lessons list */
.lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;margin-top:30px}
.lesson{background:#fff;border:2px solid var(--ink);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink);box-shadow:6px 6px 0 var(--olive);transition:transform .15s}
.lesson:hover{transform:translate(-2px,-2px)}
.tagpill{align-self:flex-start;background:var(--ink);color:var(--cream);font-size:14px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:4px 14px}
.lesson h3{margin:0;font-family:var(--display);font-size:24px;font-weight:900}
.lesson p{margin:0;color:var(--muted);font-size:18px;flex:1}
.lesson .go{font-weight:800;color:var(--olive)}
.empty{padding:30px;border:2px dashed var(--olive-3);border-radius:var(--radius);color:var(--muted);text-align:center}
.notice{background:#fff7d6;border:2px solid #d9b84a;border-radius:14px;padding:14px 18px;font-size:17px}
.brand,.nav a.lnk{white-space:nowrap}
@media(max-width:480px){.nav .wrap{padding:0 14px}.brand{font-size:18px;gap:8px}.nav a.lnk{font-size:15px;padding:7px 11px}}