:root{
  --navy:#13213C;
  --navy-soft:#1C2F4E;
  --navy-line:#2A3E5F;
  --ink:#0E1A30;
  --orange:#E5851F;
  --orange-deep:#C56E12;
  --cream:#F4EFE3;
  --muted:#AEB7C7;
  --radius:14px;
  --maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--navy);
  color:var(--cream);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.01em;line-height:1.05}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.accent{color:var(--orange)}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(14,26,48,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--navy-line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:inline-flex;align-items:center}
.brand img{height:42px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center;font-size:14px;font-weight:500;letter-spacing:.03em;text-transform:uppercase}
.nav-links a{color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--cream)}
.btn{display:inline-block;background:var(--orange);color:var(--ink);font-weight:700;font-family:'Oswald';text-transform:uppercase;letter-spacing:.04em;padding:13px 26px;border-radius:10px;transition:transform .15s,background .2s;border:none;cursor:pointer;font-size:15px}
.btn:hover{background:var(--orange-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1.5px solid var(--navy-line);color:var(--cream)}
.btn-ghost:hover{background:var(--navy-soft);border-color:var(--orange)}
@media(max-width:760px){.nav-links{display:none}}

/* Hero */
.hero{padding:72px 0 84px;background:
   radial-gradient(1200px 500px at 80% -10%, rgba(229,133,31,.10), transparent 60%),
   linear-gradient(180deg,var(--ink),var(--navy) 60%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{font-family:'Oswald';text-transform:uppercase;letter-spacing:.22em;color:var(--orange);font-weight:600;font-size:14px;margin-bottom:18px}
.hero h1{font-size:clamp(34px,4.6vw,56px);font-weight:700;margin-bottom:22px}
.hero p.lead{font-size:18px;color:#DCE2EC;max-width:42ch;margin-bottom:14px}
.rule{width:64px;height:3px;background:var(--orange);border-radius:2px;margin:26px 0}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.tagline{margin-top:34px;font-family:'Oswald';text-transform:uppercase;letter-spacing:.05em;font-weight:600;font-size:15px;color:var(--cream)}
.tagline span{color:var(--orange)}

/* Cover visual: isolates the FRONT of the wraparound cover image */
.cover-frame{
  position:relative;width:330px;max-width:80vw;aspect-ratio:540/720;
  margin-left:auto;border-radius:8px;overflow:hidden;
  box-shadow:0 30px 60px -18px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.04);
  transform:perspective(1400px) rotateY(-9deg) rotateX(2deg);
}
.cover-frame img{width:100%;height:100%;object-fit:cover;object-position:100% 50%;display:block}
.badge-float{position:absolute;left:-14px;bottom:22px;background:var(--orange);color:var(--ink);font-family:'Oswald';font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.04em;padding:9px 14px;border-radius:8px;box-shadow:0 10px 24px -8px rgba(0,0,0,.6)}
@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .cover-frame{margin:0 auto;transform:none}
  .badge-float{left:8px}
}

/* Section scaffolding */
section{padding:78px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 50px}
.section-head .eyebrow{margin-bottom:12px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;margin-bottom:14px}
.section-head p{color:var(--muted)}
.alt{background:var(--ink)}

/* Benefits grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){.grid3{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid3{grid-template-columns:1fr}}
.card{background:var(--navy-soft);border:1px solid var(--navy-line);border-radius:var(--radius);padding:28px 24px;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--orange);transform:translateY(-3px)}
.ico{width:52px;height:52px;border:2px solid var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.ico svg{width:24px;height:24px;stroke:var(--orange);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:18px;font-weight:600;margin-bottom:8px;letter-spacing:.02em}
.card p{color:var(--muted);font-size:15px}

/* Catalog (homepage book grid) */
.catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px}
.book{display:flex;flex-direction:column;background:var(--navy-soft);border:1px solid var(--navy-line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,transform .2s}
a.book:hover{border-color:var(--orange);transform:translateY(-4px)}
.book-cover{aspect-ratio:540/720;overflow:hidden;background:var(--ink);position:relative}
.book-cover img{width:100%;height:100%;object-fit:cover;object-position:100% 50%;display:block}
.book-cover.soon{display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--navy-line);background:
   radial-gradient(420px 300px at 50% 40%, rgba(229,133,31,.07), transparent 70%), var(--ink)}
.book-cover.soon span{font-family:'Oswald';color:#39507a;font-size:clamp(40px,7vw,68px);font-weight:700;letter-spacing:.04em}
.book-body{padding:24px;display:flex;flex-direction:column;flex:1}
.pill{display:inline-block;align-self:flex-start;background:rgba(229,133,31,.15);color:var(--orange);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;padding:5px 12px;border-radius:30px;margin-bottom:14px}
.pill.live{background:var(--orange);color:var(--ink)}
.book-body h3{font-size:20px;font-weight:600;margin-bottom:8px;line-height:1.2;letter-spacing:.01em}
.book-body p{color:var(--muted);font-size:14px;flex:1;margin-bottom:16px}
.more{font-family:'Oswald';text-transform:uppercase;letter-spacing:.04em;font-weight:600;color:var(--orange);font-size:14px}
.more.disabled{color:var(--muted)}

/* Worksheets band */
.band{background:
   linear-gradient(90deg, rgba(229,133,31,.12), transparent 70%), var(--navy-soft);
   border:1px solid var(--navy-line);border-radius:20px;padding:48px;display:flex;gap:40px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band .num{font-family:'Oswald';font-weight:700;font-size:84px;color:var(--orange);line-height:1}
.band-txt{flex:1;min-width:260px}
.band-txt h2{font-size:30px;font-weight:700;margin-bottom:10px}
.band-txt p{color:#DCE2EC;max-width:52ch}

/* Author */
.author{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:center}
@media(max-width:760px){.author{grid-template-columns:1fr;text-align:center}}
.author-photo{width:230px;height:230px;border-radius:50%;margin:0 auto;border:3px solid var(--orange);background:var(--navy-soft);overflow:hidden}
.author-photo img{width:100%;height:100%;object-fit:cover;object-position:center 32%;display:block}
.author h2{font-size:30px;font-weight:700;margin-bottom:6px}
.author .role{color:var(--orange);font-family:'Oswald';text-transform:uppercase;letter-spacing:.1em;font-size:14px;font-weight:600;margin-bottom:18px}
.author p{color:#DCE2EC;max-width:60ch}

/* Signup */
.signup{background:linear-gradient(180deg,var(--navy),var(--ink));text-align:center}
.signup-box{max-width:560px;margin:0 auto}
.signup form{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;justify-content:center}
.signup input{flex:1;min-width:240px;padding:14px 18px;border-radius:10px;border:1.5px solid var(--navy-line);background:var(--navy-soft);color:var(--cream);font-size:15px;font-family:inherit}
.signup input:focus{outline:none;border-color:var(--orange)}
.signup small{display:block;color:var(--muted);margin-top:14px;font-size:13px}

/* Footer */
footer{border-top:1px solid var(--navy-line);padding:42px 0;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot .brand img{height:48px}