:root{
  --bg:#fbfaf7;
  --paper:#ffffff;
  --ink:#173d39;
  --muted:#6a6f6a;
  --line:#e7e1d8;
  --accent:#0e544d;
  --accent-2:#e8b94f;
  --rose:#d982ad;
  --shadow:0 24px 70px rgba(23,61,57,.14);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;color:var(--ink);background:radial-gradient(circle at 15% 0%, rgba(232,185,79,.16), transparent 32rem), radial-gradient(circle at 85% 8%, rgba(217,130,173,.14), transparent 28rem), var(--bg);line-height:1.65}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(23,61,57,.035) 1px, transparent 1px),linear-gradient(90deg, rgba(23,61,57,.035) 1px, transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom, #000, transparent 75%)}
a{color:inherit}.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem clamp(1rem,4vw,4rem);backdrop-filter:blur(16px);background:rgba(251,250,247,.82);border-bottom:1px solid rgba(231,225,216,.8)}
.brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:800;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:2rem;height:2rem;border-radius:999px;background:var(--accent);color:#fff}.nav{display:flex;align-items:center;gap:1.25rem}.nav a{text-decoration:none;color:var(--muted);font-weight:700;font-size:.95rem}.nav a:hover{color:var(--accent)}.menu-toggle{display:none;border:0;background:var(--paper);border-radius:12px;padding:.55rem .75rem;color:var(--ink);box-shadow:0 6px 20px rgba(0,0,0,.08)}
.section{width:min(1160px, calc(100% - 2rem));margin-inline:auto;padding:clamp(3rem,7vw,6rem) 0}.hero{display:grid;grid-template-columns:minmax(280px,430px) 1fr;gap:clamp(2rem,6vw,5rem);align-items:center;min-height:calc(100vh - 80px)}.hero-media{position:relative}.cover-frame{position:relative;max-width:410px;margin:auto;padding:18px;border-radius:34px;background:linear-gradient(145deg, rgba(255,255,255,.9), rgba(255,255,255,.45));box-shadow:var(--shadow);border:1px solid rgba(231,225,216,.8);transform:rotate(-1.3deg)}.cover-frame:after{content:"";position:absolute;inset:auto -18px -18px 24px;height:42px;border-radius:50%;background:rgba(23,61,57,.18);filter:blur(18px);z-index:-1}.cover-frame img{display:block;width:100%;height:auto;border-radius:22px;background:#fff}.floating-badge{position:absolute;right:-.3rem;bottom:12%;background:var(--accent-2);color:#2b2615;font-weight:900;border-radius:999px;padding:.8rem 1rem;box-shadow:0 12px 28px rgba(0,0,0,.14);transform:rotate(6deg)}.eyebrow{margin:0 0 .7rem;text-transform:uppercase;letter-spacing:.2em;font-size:.76rem;font-weight:900;color:var(--rose)}h1,h2{font-family:Georgia, "Times New Roman", serif;line-height:1.05;margin:0}h1{font-size:clamp(4rem,12vw,8.8rem);letter-spacing:-.07em;color:var(--accent)}h2{font-size:clamp(2rem,5vw,4.3rem);letter-spacing:-.045em}.subtitle{font-size:clamp(1.1rem,2vw,1.45rem);max-width:58ch;color:#315550;margin:1.4rem 0 2rem}.hero-actions{display:flex;flex-wrap:wrap;gap:.85rem;margin-bottom:2rem}.button{display:inline-flex;justify-content:center;align-items:center;border-radius:999px;padding:.9rem 1.25rem;text-decoration:none;font-weight:900;transition:transform .2s ease, box-shadow .2s ease}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--accent);color:white;box-shadow:0 14px 34px rgba(14,84,77,.25)}.button.secondary{background:var(--paper);color:var(--accent);border:1px solid var(--line)}.button.large{padding:1.05rem 1.5rem}.tech-card{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:0;overflow:hidden;border:1px solid var(--line);border-radius:22px;background:var(--line);box-shadow:0 18px 45px rgba(0,0,0,.06)}.tech-card div{background:rgba(255,255,255,.76);padding:1rem}.tech-card dt{font-size:.76rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:900}.tech-card dd{margin:.2rem 0 0;font-weight:800}.section-heading{max-width:790px;margin-bottom:2rem}.intro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.color-card{min-height:150px;border-radius:24px;padding:1.1rem;display:flex;flex-direction:column;justify-content:space-between;background:var(--paper);box-shadow:0 16px 42px rgba(0,0,0,.07);border:1px solid rgba(231,225,216,.8);overflow:hidden;position:relative}.color-card:before{content:"";position:absolute;right:-24px;top:-24px;width:100px;height:100px;border-radius:50%;background:currentColor;opacity:.24}.color-card span{font-size:.8rem;font-weight:900;text-transform:uppercase;letter-spacing:.13em;color:var(--muted)}.color-card strong{font-size:1.25rem}.orange{color:#e58a2f}.silver{color:#9fa6ac}.pink{color:#d982ad}.violet{color:#8156bb}.yellow{color:#e9bc32}.black{color:#1b1b1b}.red{color:#d04a3b}.white{color:#dcd4c9}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,5vw,4rem);align-items:start;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.prose{font-size:1.08rem;color:#385c57}.prose p{margin-top:0}.quote-band{width:100%;max-width:none;background:linear-gradient(135deg, var(--accent), #092d2a);color:white;text-align:center;padding:4.5rem 1rem}.quote-band blockquote{width:min(900px,100%);margin:auto;font-family:Georgia,"Times New Roman",serif;font-size:clamp(2rem,5vw,4rem);line-height:1.12;letter-spacing:-.04em}.author-card{display:grid;grid-template-columns:180px 1fr;gap:2rem;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.2rem,4vw,3rem);box-shadow:var(--shadow)}.author-initials{display:grid;place-items:center;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle at 35% 30%, #fff, #f0dfc5);border:1px solid var(--line);font-family:Georgia,"Times New Roman",serif;font-size:3.8rem;color:var(--accent)}.author p:last-child{font-size:1.08rem;color:#385c57}.buy-panel{display:flex;justify-content:space-between;align-items:center;gap:2rem;background:linear-gradient(135deg, rgba(232,185,79,.24), rgba(217,130,173,.18));border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.5rem,4vw,3rem);margin-bottom:4rem}.buy-panel p{max-width:62ch}.footer{display:flex;justify-content:space-between;gap:1rem;padding:2rem clamp(1rem,4vw,4rem);border-top:1px solid var(--line);color:var(--muted)}.footer a{text-decoration:none;font-weight:800;color:var(--accent)}
@media (max-width:850px){.menu-toggle{display:block}.nav{position:absolute;top:100%;left:1rem;right:1rem;display:none;flex-direction:column;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:1rem;box-shadow:var(--shadow)}.nav.open{display:flex}.hero{grid-template-columns:1fr;min-height:auto;padding-top:2.5rem}.hero-copy{order:-1}.intro-grid{grid-template-columns:repeat(2,1fr)}.split,.author-card{grid-template-columns:1fr}.buy-panel,.footer{flex-direction:column;align-items:flex-start}.tech-card{grid-template-columns:1fr}.author-initials{width:120px;height:120px;font-size:2.8rem}}
@media (max-width:520px){.intro-grid{grid-template-columns:1fr}h1{font-size:4.4rem}.section{width:min(100% - 1.2rem,1160px)}.floating-badge{right:.5rem}}