:root {
  --navy:#213b81;
  --deep:#182b62;
  --ink:#141b36;
  --cyan:#009bea;
  --lilac:#976ed4;
  --accent-ink:#65439d;
  --muted:#505b76;
  --paper:#f9f5fe;
  --rule:#e0d6ee;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--deep);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.55}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
img{display:block;max-width:100%;height:auto}
figure,p,h1,h2,h3{margin:0}
a:focus-visible,button:focus-visible{outline:3px solid var(--lilac);outline-offset:4px}
.container{width:min(1170px,calc(100% - 100px));margin-inline:auto}
.site-header{color:var(--navy);background:var(--paper);border-bottom:1px solid var(--rule)}
.header-inner,.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:74px}
.brand{display:block;width:clamp(150px,24vw,228px)}
.header-link{padding:8px 0 8px 12px;color:var(--navy);font-size:.88rem;font-weight:700;white-space:nowrap}
.header-link:hover{text-decoration:underline}
.header-link span{margin-left:7px}
.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 78% 38%,#3e53a0 0,transparent 52%),var(--navy);color:var(--paper)}
.hero-grid{min-height:590px;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:42px;padding-block:58px 52px}
.hero-copy{position:relative;z-index:1}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--accent-ink);font-weight:800;font-size:.72rem;line-height:1.4;letter-spacing:.15em}
.eyebrow span{width:24px;height:1px;background:currentColor;flex:none}
.hero .eyebrow,.success .eyebrow{color:#e8d9ff}
h1,h2{font-weight:750;letter-spacing:-.055em}
.hero h1{max-width:700px;margin:22px 0 22px;font-size:clamp(3rem,5.1vw,4.9rem);line-height:.99}
.hero h1 em{display:block;color:#8ddaff;font-style:normal}
.hero-description{max-width:535px;color:#e6eafc;font-size:clamp(1rem,1.6vw,1.16rem);line-height:1.65;margin-bottom:29px}
.button{display:inline-flex;justify-content:center;align-items:center;gap:18px;min-height:54px;padding:12px 22px;border:1px solid transparent;border-radius:6px;font-size:.94rem;font-weight:800;line-height:1.3;cursor:pointer;text-align:center;transition:background .2s,border-color .2s}
.button span{font-size:1.2em}
.primary{background:var(--cyan);color:#071d34}
.primary:hover{background:#40b9f4}
.primary:disabled{opacity:.68;cursor:wait}
.hero-meta{margin-top:13px;color:#d7dff8;font-size:.78rem}
.hero-meta b{margin:0 4px;color:#8ddaff}
.book{display:grid;justify-items:center;gap:24px;position:relative;isolation:isolate}
.book::before{content:"";position:absolute;inset:9% -13% 12%;border:1px solid #c4a7f15c;border-radius:50%;transform:rotate(-18deg);z-index:-1}
.book::after{content:"";position:absolute;inset:14% -9% 17%;border:1px solid #c4a7f133;border-radius:50%;transform:rotate(-18deg);z-index:-1}
.book-art{width:min(100%,302px);background:var(--deep);border-radius:5px 3px 3px 5px;box-shadow:18px 21px 45px #0b153a99,5px 0 0 #e2dcf0,9px 0 0 #756aa3;transform:perspective(1100px) rotateY(-9deg) rotateZ(3deg)}
.book-art img{border-radius:inherit;width:100%}
.book figcaption{display:flex;align-items:center;gap:7px;color:#e6eafc;font-size:.62rem;font-weight:700;letter-spacing:.16em;text-align:center}
.book figcaption b{color:#8ddaff}
.guide{background:var(--paper);padding:86px 0;scroll-margin-top:12px}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,7vw,106px);align-items:start}
.guide-copy{padding-block:14px}
h2{font-size:clamp(2.35rem,4.35vw,3.65rem);line-height:1.04;margin-top:12px}
.section-description,.author-copy>p:not(.eyebrow){margin-top:17px;color:var(--muted);line-height:1.68}
.chapters{margin:27px 0 0;padding:0;list-style:none;border-top:1px solid var(--rule)}
.chapters li{display:grid;grid-template-columns:35px 1fr;gap:13px;padding:17px 0;border-bottom:1px solid var(--rule)}
.chapter-number{font-size:1rem;font-weight:750;color:var(--accent-ink)}
.chapters h3{font-size:1rem;line-height:1.4}
.chapters p{color:var(--muted);font-size:.89rem;margin-top:4px}
.form-card{background:#fff;border:1px solid var(--rule);border-top:4px solid var(--lilac);border-radius:12px;padding:clamp(22px,3vw,38px);box-shadow:0 12px 34px #2330410d}
.form-card h2{font-size:clamp(2.05rem,3.5vw,2.9rem)}
.form-card>p:not(.eyebrow){color:var(--muted);font-size:.93rem;margin:9px 0 22px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.fields label{display:flex;min-width:0;flex-direction:column;justify-content:space-between;gap:5px;font-size:.78rem;font-weight:750;line-height:1.35}
.fields .full{grid-column:1/-1}
.fields input,.fields select{width:100%;min-width:0;min-height:43px;background:var(--paper);border:1px solid var(--rule);border-radius:5px;color:var(--ink);padding:8px 9px;font-size:16px;font-weight:400}
.fields input:focus,.fields select:focus{outline:2px solid var(--accent-ink);outline-offset:1px}
.fields input::placeholder{color:#68747e;font-size:.86rem}
.form-card .button{width:100%;margin-top:19px}
.form-note{margin-top:10px;color:var(--muted);font-size:.75rem;text-align:center;line-height:1.4}
.form-error{margin-top:12px;color:#9f2426;font-size:.88rem;font-weight:700}
.author{background:#fff;padding:75px 0}
.author-grid{max-width:960px;display:grid;grid-template-columns:.72fr 1.28fr;gap:clamp(30px,6.5vw,82px);align-items:center}
.portrait{position:relative;margin:0 26px 24px 0;isolation:isolate}
.portrait::after{content:"";position:absolute;inset:14px -14px -14px 14px;background:var(--lilac);border-radius:16px;z-index:-1}
.author-photo{width:100%;aspect-ratio:4/4.55;object-fit:cover;object-position:center 30%;border-radius:16px}
.experience-seal{position:absolute;right:-25px;bottom:-23px;width:clamp(103px,12vw,154px);filter:drop-shadow(0 5px 9px #15235245)}
.outline{margin-top:24px;border-color:var(--navy);color:var(--navy)}
.outline:hover{background:var(--paper)}
.site-footer{background:var(--deep);color:#d7dff8;font-size:.82rem}
.site-footer::after{content:"";display:block;height:5px;background:linear-gradient(to right,var(--navy) 0 66.7%,var(--cyan) 66.7% 81.2%,var(--lilac) 81.2%)}
.footer-brand{width:clamp(140px,22vw,205px)}
.success{min-height:100svh;display:grid;place-items:center;padding:30px;background:radial-gradient(ellipse at 25% 50%,var(--navy),var(--deep) 74%);color:#fff}
.success-card{width:min(730px,100%);display:grid;grid-template-columns:170px 1fr;align-items:center;gap:35px;padding:35px;border:1px solid #ffffff26;border-radius:12px;background:var(--deep)}
.success-card img{border-radius:3px}
.success h1{font-size:clamp(2.4rem,5vw,3.6rem);line-height:1;margin-top:14px}
.success h1+p{margin:16px 0 21px;color:#e6eafc}
.back{display:block;margin-top:15px;color:#e6eafc;font-size:.86rem;text-decoration:underline}
@media(max-width:900px){
  .container{width:calc(100% - 58px)}
  .hero-grid{min-height:0;gap:25px}
  .guide-grid{gap:30px}
}
@media(max-width:700px){
  .container{width:calc(100% - 36px)}
  .header-inner,.footer-inner{min-height:60px}
  .hero-grid,.guide-grid,.author-grid{grid-template-columns:1fr}
  .hero-grid{padding:43px 0 37px;gap:34px}
  .hero h1{font-size:clamp(2.65rem,9.75vw,4.2rem);margin:16px 0 17px}
  .hero-description{margin-bottom:21px}
  .book{gap:16px}
  .book-art{width:clamp(155px,44vw,245px)}
  .book::before,.book::after{inset-inline:9%}
  .guide,.author{padding:43px 0}
  .guide-copy{grid-row:2;padding-block:5px}
  .author-grid{gap:28px}
  .portrait{max-width:300px}
  .footer-inner{padding-block:12px;font-size:.74rem;flex-wrap:wrap}
}
@media(max-width:450px){
  .fields{gap:12px 9px}
  .fields label{font-size:.73rem}
  .success-card{grid-template-columns:1fr;gap:23px;padding:24px}
  .success-card img{width:105px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

.form-card > .required-note {
  margin: 12px 0 13px;
  font-size: .78rem;
}
.required-note span, .required-marker {
  color: var(--accent-ink);
}
.fields [aria-invalid="true"] {
  border-color: #9f2426;
}
.field-error {
  color: #9f2426;
  font-weight: 600;
}