:root{
  --navy:#16324F;
  --navy-2:#1d3f61;
  --teal:#2EC4B6;
  --orange:#D47A2A;
  --charcoal:#333333;
  --sand:#F5F2EA;
  --white:#FFFFFF;
  --gray-text:#5b6570;
  --line:#e7e2d6;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Montserrat',sans-serif;color:var(--charcoal);background:var(--white);line-height:1.6;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:2.5px;text-transform:uppercase;color:var(--orange);}
h1,h2,h3,h4{color:var(--navy);letter-spacing:-0.3px;}
h2{font-size:34px;font-weight:800;line-height:1.15;}
.lead{color:var(--gray-text);font-size:16px;margin-top:14px;}
.section-head{max-width:640px;margin-bottom:44px;}
.section-head h2{margin-top:8px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 28px;font-size:14px;font-weight:700;border-radius:8px;transition:all .2s;cursor:pointer;}
.btn svg{width:16px;height:16px;}
.btn-amazon{background:var(--orange);color:#fff;}
.btn-amazon:hover{background:#c06c22;}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:#0f2438;}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--navy);}
.btn-outline:hover{background:var(--navy);color:#fff;}
.btn-outline-light{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.5);}
.btn-outline-light:hover{background:#fff;color:var(--navy);border-color:#fff;}

/* NAV */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,0.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
nav{display:flex;align-items:center;justify-content:space-between;padding:12px 32px;max-width:1180px;margin:0 auto;}
.nav-badge{height:52px;width:auto;}
.brand-text{display:flex;align-items:baseline;gap:9px;font-weight:800;font-size:18px;letter-spacing:1px;color:var(--navy);}
.brand-text .amp{color:var(--orange);}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a.link{color:var(--gray-text);font-size:13.5px;font-weight:600;}
.nav-links a.link:hover{color:var(--navy);}
.nav-cta{background:var(--orange);color:#fff;padding:11px 20px;border-radius:7px;font-size:13px;font-weight:700;}
.nav-cta:hover{background:#c06c22;}

/* HERO */
.hero{background:var(--sand);padding:70px 32px 76px;}
.hero-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.05fr 0.95fr;gap:56px;align-items:center;}
.hero h1{font-size:52px;font-weight:800;line-height:1.05;color:var(--navy);}
.hero .pledge{font-size:19px;font-weight:700;color:var(--navy);margin-top:20px;}
.hero .sub{color:var(--gray-text);font-size:16.5px;margin-top:16px;max-width:520px;}
.hero .mtl{margin-top:20px;font-size:13px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--teal);}
.hero .mtl span{color:var(--gray-text);font-weight:600;letter-spacing:1px;}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.book-wrap{display:flex;justify-content:center;}
.book-wrap img{width:100%;max-width:420px;border-radius:6px;box-shadow:0 30px 60px rgba(22,50,79,0.28),0 8px 20px rgba(22,50,79,0.18);}

/* generic bands */
.band{padding:88px 32px;}
.band-white{background:var(--white);}
.band-sand{background:var(--sand);}
.band-navy{background:var(--navy);color:#fff;}
.band-navy h2,.band-navy h3{color:#fff;}
.center{text-align:center;}
.center .section-head{margin-left:auto;margin-right:auto;}

/* intro two-col */
.intro-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start;}
.intro-grid p{color:var(--gray-text);font-size:16.5px;margin-bottom:20px;}
.intro-grid p.big{font-size:22px;font-weight:700;color:var(--navy);line-height:1.4;}

/* feature grid */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;}
.feat-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:28px 24px;transition:transform .2s,box-shadow .2s;}
.band-sand .feat-card{background:var(--white);}
.feat-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(22,50,79,0.08);}
.feat-card .ic{width:46px;height:46px;border-radius:11px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.feat-card .ic svg{width:22px;height:22px;}
.feat-card.teal .ic{background:var(--teal);}
.feat-card.orange .ic{background:var(--orange);}
.feat-card h4{font-size:16px;font-weight:700;margin-bottom:7px;}
.feat-card p{font-size:13.5px;color:var(--gray-text);}

/* framework */
.fw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px;}
.fw-col{background:var(--navy-2);border-radius:16px;padding:32px 28px;border-top:5px solid var(--teal);}
.fw-col:nth-child(2){border-top-color:var(--orange);}
.fw-col:nth-child(3){border-top-color:#fff;}
.fw-col .word{font-size:30px;font-weight:900;color:#fff;letter-spacing:1px;}
.fw-col .role{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--teal);margin:4px 0 18px;}
.fw-col:nth-child(2) .role{color:var(--orange);}
.fw-col:nth-child(3) .role{color:#cdd7e0;}
.fw-col ul{list-style:none;}
.fw-col li{font-size:14px;color:#dbe3ea;padding:7px 0;border-top:1px solid rgba(255,255,255,0.1);display:flex;gap:9px;align-items:flex-start;}
.fw-col li:first-child{border-top:none;}
.fw-col li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal);margin-top:7px;flex-shrink:0;}
.fw-col:nth-child(2) li:before{background:var(--orange);}
.fw-col:nth-child(3) li:before{background:#fff;}

/* audience */
.aud-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;}
.aud{background:var(--sand);border-radius:12px;padding:22px 20px;text-align:center;}
.aud .ic{width:44px;height:44px;border-radius:50%;background:var(--white);color:var(--navy);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;box-shadow:0 4px 12px rgba(22,50,79,0.08);}
.aud .ic svg{width:22px;height:22px;}
.aud h4{font-size:15px;font-weight:700;margin-bottom:4px;}
.aud p{font-size:12.5px;color:var(--gray-text);}

/* author */
.author-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:0.7fr 1.3fr;gap:48px;align-items:center;}
.author-badge{display:flex;justify-content:center;}
.author-badge img{max-width:260px;}
.author-grid .name{font-size:22px;font-weight:800;color:var(--navy);}
.author-grid .cred{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--orange);margin:4px 0 18px;}
.author-grid p{color:var(--gray-text);font-size:16px;}

/* schools split */
.schools-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.schools-list{display:grid;gap:14px;}
.school-item{display:flex;gap:14px;align-items:flex-start;}
.school-item .n{width:34px;height:34px;flex-shrink:0;border-radius:9px;background:var(--teal);color:#08312d;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:13px;}
.school-item h4{font-size:15px;color:#fff;margin-bottom:2px;}
.school-item p{font-size:13.5px;color:#cdd7e0;}

/* CTA band */
.cta-band{background:var(--navy);color:#fff;padding:84px 32px;text-align:center;}
.cta-band .eyebrow{color:var(--teal);}
.cta-band h2{color:#fff;font-size:34px;max-width:640px;margin:10px auto 14px;}
.cta-band p{color:rgba(255,255,255,0.72);max-width:520px;margin:0 auto 30px;font-size:15.5px;}
.cta-band .cta-row{justify-content:center;}

/* footer */
footer{background:#0f2438;color:rgba(255,255,255,0.6);padding:52px 32px 30px;text-align:center;}
footer .flogo{width:280px;max-width:74%;margin:0 auto 14px;}
footer .mtl{font-size:12px;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--teal);margin-bottom:18px;}
footer .line{font-size:13px;color:rgba(255,255,255,0.55);margin-bottom:6px;}
footer .line a{color:var(--orange);font-weight:700;}
footer .copy{font-size:12px;color:rgba(255,255,255,0.32);margin-top:14px;}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:38px;}
  .book-wrap{order:-1;}
  .intro-grid,.author-grid,.schools-grid{grid-template-columns:1fr;gap:28px;}
  .fw-grid{grid-template-columns:1fr;}
  .nav-links{display:none;}
  h2{font-size:27px;}
}