:root{
--paper:#F4EFE4;
--paper-2:#EDE6D7;
--ink:#1A1712;
--indigo:#302E6B;
--indigo-2:#4B49A8;
--muted:#6C655A;
--line:rgba(26,23,18,.14);
--display:'Bricolage Grotesque',system-ui,sans-serif;
--serif:'Fraunces',Georgia,serif;
--maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
background:var(--paper);
color:var(--ink);
font-family:var(--display);
font-size:18px;
line-height:1.6;
-webkit-font-smoothing:antialiased;
text-rendering:optimizeLegibility;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3{line-height:1.05;letter-spacing:-.02em;font-weight:800}
/* NAV */
.nav{position:sticky;top:0;z-index:50;background:rgba(244,239,228,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.nav-cta{font-size:14px;font-weight:600;color:var(--paper);background:var(--indigo);padding:10px 18px;border-radius:999px;text-decoration:none;transition:background .2s}
.nav-cta:hover{background:var(--indigo-2)}
/* HERO */
.hero{padding:88px 0 72px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;top:-30%;right:-10%;width:60vw;height:60vw;max-width:720px;max-height:720px;background:radial-gradient(circle,rgba(75,73,168,.12),transparent 68%);pointer-events:none}
.kicker{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--indigo);margin-bottom:22px}
.h1{font-size:clamp(52px,9vw,104px);letter-spacing:-.03em}
.h1 .ital{font-family:var(--serif);font-weight:400;font-style:italic;letter-spacing:-.01em}
.lead{font-family:var(--serif);font-size:clamp(22px,3.2vw,30px);line-height:1.28;font-weight:400;margin:28px 0 18px;max-width:22ch}
.hero-p{font-size:18px;color:var(--muted);max-width:52ch;margin-bottom:34px}
/* FORM */
.capture{display:flex;gap:10px;max-width:520px;flex-wrap:wrap}
.capture input{flex:1;min-width:220px;font-family:var(--display);font-size:16px;padding:15px 18px;border:1.5px solid var(--ink);border-radius:12px;background:var(--paper);color:var(--ink)}
.capture input::placeholder{color:var(--muted)}
.capture input:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(75,73,168,.18)}
.capture button{font-family:var(--display);font-weight:600;font-size:16px;padding:15px 26px;border:none;border-radius:12px;background:var(--ink);color:var(--paper);cursor:pointer;transition:transform .12s,background .2s;white-space:nowrap}
.capture button:hover{background:var(--indigo)}
.capture button:active{transform:translateY(1px)}
.capture.dark input{background:transparent;border-color:rgba(244,239,228,.4);color:var(--paper)}
.capture.dark input::placeholder{color:rgba(244,239,228,.55)}
.capture.dark button{background:var(--paper);color:var(--ink)}
.capture.dark button:hover{background:#fff}
.micro{font-size:13.5px;color:var(--muted);margin-top:14px}
.micro.light{color:rgba(244,239,228,.65)}
.form-msg{min-height:22px;margin-top:12px;font-size:15px;font-weight:600}
.form-msg.ok{color:var(--indigo)}
.form-msg.err{color:#b0451f}
.form-msg.light.ok{color:#c7c6ff}
.form-msg.light.err{color:#ffb59b}
/* SECTIONS */
.h2{font-size:clamp(30px,4.5vw,46px)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--indigo);margin-bottom:14px}
.band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:76px 0}
.checks{list-style:none;margin:34px 0 26px;display:grid;gap:18px;max-width:760px}
.checks li{position:relative;padding-left:42px;font-size:19px;line-height:1.5}
.checks li:before{content:"";position:absolute;left:0;top:2px;width:26px;height:26px;border-radius:50%;background:var(--indigo);
-webkit-mask:url("data:image/svg+xml;utf8,") center/16px no-repeat;
mask:url("data:image/svg+xml;utf8,") center/16px no-repeat}
.band-note{font-family:var(--serif);font-style:italic;font-size:22px;color:var(--ink);max-width:44ch}
/* 7 CAMBIOS */
.idx{padding:88px 0}
.changes{list-style:none;margin:40px 0 24px;border-top:1px solid var(--line)}
.changes li{display:flex;gap:26px;align-items:baseline;padding:26px 0;border-bottom:1px solid var(--line)}
.changes .num{font-family:var(--serif);font-size:clamp(28px,4vw,42px);font-weight:500;color:var(--indigo);min-width:64px;line-height:1}
.changes h3{font-size:clamp(21px,2.6vw,27px);font-weight:800;margin-bottom:4px}
.changes p{color:var(--muted);font-size:17px}
.idx-note{font-size:17px;color:var(--muted);margin-top:6px}
/* AUTHOR */
.author{background:var(--paper-2);border-top:1px solid var(--line);padding:80px 0}
.author-in{display:grid;grid-template-columns:280px 1fr;gap:52px;align-items:center}
.author-photo{aspect-ratio:4/5;border-radius:16px;overflow:hidden;background:linear-gradient(160deg,var(--indigo),#211f4d);display:flex;align-items:center;justify-content:center;box-shadow:0 20px 50px rgba(48,46,107,.28)}
.photo-ph{font-family:var(--serif);font-size:80px;color:rgba(244,239,228,.9);font-style:italic}
.author-txt p{margin-bottom:14px;color:var(--ink)}
.author-txt p:first-of-type{font-weight:600}
/* FINAL */
.final{background:var(--ink);color:var(--paper);padding:92px 0;position:relative;overflow:hidden}
.final:before{content:"";position:absolute;bottom:-40%;left:-10%;width:60vw;height:60vw;max-width:640px;max-height:640px;background:radial-gradient(circle,rgba(75,73,168,.35),transparent 66%)}
.final-in{position:relative;max-width:640px}
.h2.light{color:var(--paper)}
.final-p{color:rgba(244,239,228,.8);font-size:19px;margin:20px 0 30px;max-width:50ch}
/* FOOT */
.foot{background:var(--ink);color:rgba(244,239,228,.6);padding:26px 0;border-top:1px solid rgba(244,239,228,.12)}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13.5px}
@media(max-width:760px){
body{font-size:17px}
.hero{padding:56px 0 52px}
.author-in{grid-template-columns:1fr;gap:30px}
.author-photo{max-width:220px}
.changes li{gap:16px}
.changes .num{min-width:44px}
.foot-in{flex-direction:column}
}