:root{
  --bg: #0c1118;
  --surface: #111926;
  --surface-2: #162233;
  --paper: #f4efe5;
  --ink: #eaf0f7;
  --text: #dce5ef;
  --muted: #98a8b9;
  --line: rgba(220,229,239,.14);
  --accent: #3fbf9b;
  --accent-2: #d5a84b;
  --accent-3: #6f8fce;
  --shadow: 0 24px 60px rgba(0,0,0,.34);
  --radius: 8px;
  --max: 1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background:
    linear-gradient(180deg, rgba(12,17,24,.88), rgba(12,17,24,1) 520px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.025) 0 1px, transparent 1px 96px),
    var(--bg);
  color:var(--text);
  line-height:1.55;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(120deg, rgba(63,191,155,.11), transparent 34%),
    linear-gradient(300deg, rgba(213,168,75,.10), transparent 36%);
  mask-image: linear-gradient(#000, transparent 78%);
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }
.container{
  width:min(var(--max), calc(100% - 40px));
  margin:0 auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:10px;
  background:#fff;
  color:#000;
  padding:10px 12px;
  border-radius:8px;
  z-index:999;
}
.skip-link:focus{ left:10px; }

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(14px);
  background: rgba(12,17,24,.78);
  border-bottom:1px solid var(--line);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:16px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:250px;
}
.brand img{
  width:50px;
  height:50px;
  border-radius:12px;
  box-shadow:0 12px 30px rgba(0,0,0,.28);
}
.brand-name{ font-weight:900; letter-spacing:.01em; }
.brand-tagline{ color:var(--muted); font-size:.9rem; }

.nav{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  justify-content:center;
}
.nav a{
  padding:8px 10px;
  border-radius:8px;
  color:var(--muted);
  font-weight:650;
}
.nav a:hover{
  background:rgba(255,255,255,.05);
  text-decoration:none;
  color:var(--ink);
}

.header-cta{
  display:flex;
  gap:10px;
  min-width:250px;
  justify-content:flex-end;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:10px 15px;
  border-radius:8px;
  border:1px solid rgba(63,191,155,.42);
  background:linear-gradient(180deg, rgba(63,191,155,.22), rgba(63,191,155,.12));
  color:var(--ink);
  font-weight:800;
  box-shadow:0 14px 28px rgba(0,0,0,.22);
}
.btn:hover{
  text-decoration:none;
  border-color:rgba(63,191,155,.66);
  background:rgba(63,191,155,.24);
}
.btn-ghost{
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  box-shadow:none;
}
.btn-ghost:hover{ background:rgba(255,255,255,.07); }

.hero{
  padding:72px 0 34px;
  position:relative;
}
.hero-inner{
  display:grid;
  grid-template-columns:minmax(0, 1.02fr) minmax(360px, .98fr);
  gap:42px;
  align-items:center;
}
.eyebrow{
  margin:0 0 10px;
  color:var(--accent-2);
  font-size:.76rem;
  font-weight:900;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.hero h1{
  margin:0 0 16px;
  max-width:12ch;
  color:var(--ink);
  font-size:clamp(2.55rem, 6vw, 5.25rem);
  line-height:.95;
  letter-spacing:0;
}
.lead{
  max-width:66ch;
  margin:0 0 24px;
  color:#b8c5d3;
  font-size:1.12rem;
}
.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin:0 0 22px;
}
.hero-points{
  display:grid;
  gap:10px;
  margin:0;
  padding:0;
  color:var(--muted);
  list-style:none;
}
.hero-points li{
  position:relative;
  padding-left:26px;
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:12px;
  height:2px;
  background:var(--accent);
}

.hero-visual{
  position:relative;
  min-height:520px;
}
.hero-visual::before{
  content:"";
  position:absolute;
  inset:34px 34px -10px -6px;
  border:1px solid rgba(213,168,75,.35);
  transform:rotate(-2deg);
}
.visual-board{
  position:relative;
  min-height:520px;
  padding:22px;
  overflow:hidden;
  border:1px solid rgba(220,229,239,.18);
  border-radius:12px;
  background:
    linear-gradient(145deg, rgba(244,239,229,.08), rgba(22,34,51,.88) 36%),
    var(--surface);
  box-shadow:var(--shadow);
}
.visual-board::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.38;
}
.visual-topline,
.visual-focus,
.visual-flow,
.visual-books{
  position:relative;
  z-index:1;
}
.visual-topline{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  color:var(--muted);
  font-size:.86rem;
}
.visual-topline strong{
  color:var(--ink);
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.12em;
}
.visual-focus{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:18px;
  align-items:center;
  margin-top:30px;
  padding:18px;
  border:1px solid var(--line);
  background:rgba(12,17,24,.52);
  border-radius:10px;
}
.visual-logo{
  width:88px;
  height:88px;
  border-radius:18px;
  box-shadow:0 18px 34px rgba(0,0,0,.32);
}
.visual-focus p{
  margin:0 0 4px;
  color:var(--accent);
  font-weight:900;
}
.visual-focus h2{
  margin:0;
  color:var(--ink);
  font-size:1.45rem;
  line-height:1.15;
}
.visual-flow{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:8px;
  margin-top:20px;
}
.visual-flow span{
  min-height:54px;
  display:grid;
  place-items:center;
  border:1px solid rgba(63,191,155,.26);
  border-radius:8px;
  background:rgba(63,191,155,.09);
  color:#cfe8df;
  font-weight:800;
  font-size:.82rem;
}
.visual-books{
  display:grid;
  grid-template-columns:128px 128px 1fr;
  gap:14px;
  align-items:center;
  margin-top:28px;
}
.visual-books img{
  width:128px;
  height:192px;
  object-fit:cover;
  border-radius:8px;
  box-shadow:0 22px 36px rgba(0,0,0,.42);
}
.book-note{
  align-self:center;
  padding:16px;
  border-left:2px solid var(--accent-2);
  background:rgba(255,255,255,.035);
}
.book-note span{
  display:block;
  margin-bottom:4px;
  color:var(--muted);
  font-size:.84rem;
}
.book-note strong{
  color:var(--ink);
  font-size:1.05rem;
  line-height:1.2;
}

.authority-strip{
  padding:22px 0 10px;
}
.authority-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:14px;
}
.authority-grid > div{
  min-height:132px;
  padding:18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(17,25,38,.58);
}
.metric{
  display:block;
  margin-bottom:10px;
  color:var(--accent-2);
  font-weight:950;
}
.authority-grid strong{
  display:block;
  color:var(--ink);
  font-size:1.1rem;
}
.authority-grid p{
  margin:6px 0 0;
  color:var(--muted);
}

.section{
  padding:68px 0;
  border-top:1px solid var(--line);
}
.section-alt{
  background:rgba(255,255,255,.025);
}
.section-head{
  margin-bottom:24px;
}
.section-head-wide{
  max-width:920px;
}
.section-head-wide h2{
  max-width:none;
}
.section-head-wide .section-subtitle{
  margin-top:14px;
}
.split-head{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:28px;
  align-items:end;
}
.section-head h2,
.contact-band h2{
  margin:0;
  color:var(--ink);
  font-size:clamp(1.7rem, 3vw, 2.45rem);
  line-height:1.08;
}
.section-subtitle{
  margin:0;
  color:var(--muted);
}

.editorial-panel{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:18px;
  margin-bottom:18px;
}
.panel-copy{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(244,239,229,.055);
}
.panel-copy p{
  margin:0;
  color:#c5d0db;
}
.panel-copy p + p{ margin-top:14px; }
.method-map{
  display:grid;
  gap:10px;
}
.method-map div{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:64px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(90deg, rgba(63,191,155,.12), rgba(255,255,255,.035));
  font-weight:800;
}
.method-map span{
  color:var(--accent-2);
  font-weight:950;
}

.grid-2,
.grid-3{
  display:grid;
  gap:16px;
}
.grid-2{ grid-template-columns:repeat(2, 1fr); }
.grid-3{ grid-template-columns:repeat(3, 1fr); }

.feature,
.card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(17,25,38,.68);
}
.feature{
  position:relative;
  min-height:190px;
  padding:22px;
  overflow:hidden;
}
.feature::after{
  content:"";
  position:absolute;
  right:18px;
  bottom:18px;
  width:52px;
  height:52px;
  border-right:2px solid rgba(213,168,75,.42);
  border-bottom:2px solid rgba(213,168,75,.42);
}
.feature h3,
.card h3{
  margin:0 0 8px;
  color:var(--ink);
}
.feature p,
.card p{
  margin:0;
  color:var(--muted);
}
.card{
  padding:22px;
  box-shadow:0 18px 48px rgba(0,0,0,.22);
}

.books-section{
  background:linear-gradient(180deg, rgba(244,239,229,.035), rgba(12,17,24,0));
}
.books{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
}
.book{
  position:relative;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.book::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:5px;
  background:linear-gradient(90deg, var(--accent), var(--accent-2));
}
.book h3{ margin:0 0 6px; }
.book-meta{
  margin:0 0 12px;
  color:var(--muted);
  font-weight:750;
}
.book-cover{
  width:210px;
  max-width:82%;
  aspect-ratio:2 / 3;
  object-fit:cover;
  border-radius:8px;
  margin:18px auto 22px;
  box-shadow:0 22px 42px rgba(0,0,0,.45);
  display:block;
}
.bullets{
  margin:14px 0 18px;
  padding-left:18px;
  color:var(--muted);
}
.bullets li{ margin:8px 0; }

.book-badge{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(63,191,155,.36);
  background:rgba(63,191,155,.10);
  color:var(--ink);
  font-size:.84rem;
  font-weight:900;
  margin-bottom:10px;
}
.badge-muted{
  border-color:rgba(220,229,239,.18);
  background:rgba(255,255,255,.055);
  color:var(--muted);
}

.muted{ color:var(--muted); }

.contact-band{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  padding:26px;
  border:1px solid var(--line);
  border-radius:12px;
  background:linear-gradient(120deg, rgba(63,191,155,.13), rgba(213,168,75,.10));
}
.contact-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.site-footer{
  border-top:1px solid var(--line);
  padding:20px 0;
  background:rgba(8,12,18,.88);
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.footer-brand{ font-weight:950; color:var(--ink); }
.footer-muted{ color:var(--muted); font-size:.92rem; }
.footer-links{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.footer-links a{ color:var(--muted); }
.footer-links a:hover{ color:var(--ink); text-decoration:none; }

@media (max-width: 980px){
  .header-inner{ flex-wrap:wrap; }
  .brand,
  .header-cta{ min-width:auto; }
  .hero-inner,
  .split-head,
  .editorial-panel{
    grid-template-columns:1fr;
  }
  .hero-visual{ min-height:auto; }
  .authority-grid,
  .grid-3{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .container{ width:min(100% - 28px, var(--max)); }
  .hero{ padding-top:44px; }
  .header-cta{ width:100%; justify-content:flex-start; }
  .visual-board{ min-height:auto; padding:16px; }
  .visual-focus{ grid-template-columns:64px 1fr; }
  .visual-logo{ width:64px; height:64px; border-radius:14px; }
  .visual-flow,
  .visual-books,
  .grid-2,
  .books{
    grid-template-columns:1fr;
  }
  .visual-books img{ width:150px; height:225px; }
  .book-note{ border-left:0; border-top:2px solid var(--accent-2); }
  .contact-band{ align-items:flex-start; flex-direction:column; }
}

@media (max-width: 520px){
  .brand-text{ max-width:210px; }
  .nav{ justify-content:flex-start; }
  .btn{ width:100%; }
  .hero-actions,
  .contact-actions{
    width:100%;
  }
  .hero h1{ font-size:2.5rem; }
}