/* ===================================================================
   GEOMANCIA.COM.BR — design tokens
   =================================================================== */
:root{
  --paper:        #EAE2D0;
  --paper-panel:  #F7F2E6;
  --ink:          #201A12;
  --ink-soft:     #453D2C;
  --ink-faint:    #8F8567;
  --indigo:       #262F45;
  --brass:        #A9762C;
  --brass-bright: #C4903F;
  --brass-ink:    #6E4E1E;
  --line:         rgba(32,26,18,.18);

  --font-display: 'Fraunces', ui-serif, Georgia, serif;
  --font-body:    'Newsreader', ui-serif, Georgia, serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;

  --container: 1120px;
  --container-narrow: 700px;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  position:relative;
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1.14rem;
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::after{
  content:'';
  position:fixed; inset:0; z-index:999; pointer-events:none;
  opacity:.045; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
h1,h2,h3{
  font-family:var(--font-display);
  color:var(--ink);
  margin:0;
  font-weight:620;
  letter-spacing:-0.012em;
}

.wrap{ max-width:var(--container); margin-inline:auto; padding-inline:clamp(20px,5vw,48px); }
.wrap--narrow{ max-width:var(--container-narrow); }

.skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--ink); color:var(--paper); padding:.75em 1.2em;
  font-family:var(--font-mono); font-size:.85rem;
}
.skip-link:focus{ left:12px; top:12px; }

:focus-visible{ outline:2px solid var(--brass-ink); outline-offset:3px; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
}

/* ===================================================================
   Buttons & links
   =================================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-size:1rem; font-weight:600;
  text-decoration:none; letter-spacing:-.005em;
  padding:.85em 1.6em; border-radius:3px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease, border-color .18s ease;
}
.btn--brass{
  background:var(--brass-bright);
  color:#251A09;
}
.btn--brass:hover{ background:var(--brass); }

.header-link{
  font-family:var(--font-mono); font-size:.82rem;
  text-decoration:underline; text-decoration-color:var(--brass); text-decoration-thickness:1px;
  text-underline-offset:3px;
  color:var(--ink-soft);
}
.header-link:hover{ color:var(--brass-ink); }

/* ===================================================================
   Header
   =================================================================== */
.site-header{ border-bottom:1px solid var(--line); }
.site-header__inner{ display:flex; align-items:center; justify-content:space-between; padding-block:20px; }
.wordmark{
  font-family:var(--font-display); font-weight:650; font-size:1.15rem;
  text-decoration:none; color:var(--ink);
}

/* ===================================================================
   Article opening
   =================================================================== */
article{ padding-block:clamp(48px,7vw,72px) clamp(64px,9vw,96px); }

.post-meta{
  font-family:var(--font-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--brass-ink); margin:0 0 1.1em;
}
.post-title{
  font-size:clamp(2rem, 3.6vw + .8rem, 3.1rem);
  font-weight:650;
  line-height:1.12;
  letter-spacing:-0.015em;
}
.post-title em{ color:var(--brass-ink); font-style:italic; font-weight:560; }

.post-deck{
  font-size:clamp(1.1rem,1.4vw,1.28rem);
  color:var(--ink-soft);
  margin:1em 0 0;
}

/* Featured figure */
.post-figure{
  margin:clamp(36px,6vw,56px) auto;
  width:fit-content;
}

.kindle-mockup{
  position:relative;
  width:min(230px, 46vw);
  aspect-ratio:.631;
  background:linear-gradient(160deg,#3a3a38, #1c1c1a 55%, #0a0a09);
  border-radius:18px;
  padding:6% 6% 12%;
  box-shadow:0 1px 0 rgba(255,255,255,.08) inset, 0 24px 40px -18px rgba(32,26,18,.35);
}
.kindle-mockup__screen{
  position:relative; width:100%; height:100%;
  background:#EDE7D8;
  border-radius:3px;
  overflow:hidden;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.5), inset 0 2px 10px rgba(0,0,0,.25);
}
.kindle-mockup__screen img{ width:100%; height:100%; object-fit:contain; display:block; }
.kindle-mockup__glare{
  position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(120deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,0) 26%, rgba(255,255,255,0) 72%, rgba(255,255,255,.08) 100%);
}
.kindle-mockup__chin{
  position:absolute; left:0; right:0; bottom:0; height:12%;
  display:flex; align-items:center; justify-content:center;
}
.kindle-mockup__chin span{
  font-family:var(--font-body); font-style:italic; font-weight:500;
  font-size:.72rem; color:#8a8880;
}

/* Book promo callout */
.book-promo{
  border-left:3px solid var(--brass);
  background:var(--paper-panel);
  padding:1.6em 1.9em;
  margin:0 0 2.2em;
}
.book-promo__price{
  font-family:var(--font-display); font-size:1.55rem; font-weight:650;
  color:var(--ink); margin:0 0 .9em;
}
.book-promo__price span{
  font-family:var(--font-mono); font-size:.68rem; text-transform:uppercase; letter-spacing:.05em;
  color:var(--ink-faint); font-weight:400;
}
.fine-print{ font-size:.88rem; color:var(--ink-faint); margin:1.1em 0 0; }
.fine-print--note{ font-style:italic; }

/* ===================================================================
   Article body
   =================================================================== */
section{ margin-top:clamp(56px,8vw,84px); }

h2{
  font-size:clamp(1.6rem, 2vw + .9rem, 2.15rem);
  line-height:1.2;
  margin-bottom:.85em;
}
h3{ font-size:1.22rem; margin-bottom:.4em; }

p{ margin:0 0 1.25em; }
p:last-child{ margin-bottom:0; }
section > p, section > ul, section > .duo, section > .feature-list{ color:var(--ink-soft); }

.lede{
  font-size:clamp(1.1rem,1.3vw,1.24rem);
  color:var(--ink-soft);
}

.pull-quote{
  font-style:italic; color:var(--ink); font-size:1.14rem;
  padding-left:1.2em; border-left:2px solid var(--brass);
  margin:1.6em 0 0;
}

/* Duality (Section 2) */
.duo{ display:grid; grid-template-columns:1fr; gap:26px; margin:1.8em 0; }
@media (min-width:640px){ .duo{ grid-template-columns:1fr 1fr; } }
.duo__item{ border-left:2px solid var(--line); padding-left:1.1em; }
.duo__item h3{ color:var(--ink); }
.duo__item p{ margin:0; }

/* Tag row (Section 3) */
.tag-row{
  list-style:none; display:flex; flex-wrap:wrap; gap:8px;
  margin:0 0 1.6em; padding:0;
  font-family:var(--font-mono); font-size:.76rem; text-transform:uppercase; letter-spacing:.04em;
}
.tag-row li{
  padding:.5em 1em; border:1px solid var(--line); border-radius:20px;
  color:var(--ink-soft);
}

/* Feature list (Section 4) */
.feature-list{ display:flex; flex-direction:column; gap:1.5em; margin-top:1.6em; }
.feature-item{ padding-top:1.5em; border-top:1px solid var(--line); }
.feature-item:first-child{ padding-top:0; border-top:none; }
.feature-item h3{ color:var(--ink); }
.feature-item p{ margin:0; }

/* Checklist (Section 5) */
.checklist{ margin:1.6em 0; padding-left:1.2em; display:flex; flex-direction:column; gap:.75em; }
.checklist li::marker{ color:var(--brass-ink); }
.checklist strong{ color:var(--ink); font-weight:600; }

/* Author bio (Section 6) */
.author-bio{ display:flex; flex-direction:column; gap:20px; margin-top:1.6em; }
@media (min-width:560px){ .author-bio{ flex-direction:row; align-items:flex-start; gap:26px; } }
.author-bio__photo{
  width:112px; height:112px; border-radius:50%;
  object-fit:cover; object-position:top center;
  flex:none;
}
.author-bio__text h2{ margin-bottom:.5em; }
.author-bio__text p{ color:var(--ink-soft); }

/* Specs (Section 7) */
.specs{ margin:1.6em 0 0; }
.specs__row{
  display:flex; justify-content:space-between; gap:24px;
  padding:14px 0; border-bottom:1px solid var(--line);
}
.specs__row:first-child{ border-top:1px solid var(--line); }
.specs__row dt{
  font-family:var(--font-mono); font-size:.74rem; text-transform:uppercase; letter-spacing:.05em;
  color:var(--ink-faint); flex:0 0 40%;
}
.specs__row dd{ margin:0; text-align:right; color:var(--ink); max-width:60%; }
.specs__row dd a{ color:var(--brass-ink); text-decoration-color:var(--brass); }
@media (max-width:480px){
  .specs__row{ flex-direction:column; gap:4px; }
  .specs__row dd{ text-align:left; max-width:100%; }
}

/* FAQ accordion (Section 8) */
.accordion{ margin-top:1.6em; border-top:1px solid var(--line); }
.accordion__item{ border-bottom:1px solid var(--line); }
.accordion__item summary{
  list-style:none; cursor:pointer;
  display:flex; align-items:baseline; gap:12px;
  padding:18px 0; font-family:var(--font-display); font-size:1.1rem; font-weight:560;
}
.accordion__item summary::before{
  content:'+'; font-family:var(--font-mono); font-weight:400; color:var(--brass-ink);
  width:14px; flex:none;
}
.accordion__item[open] summary::before{ content:'–'; }
.accordion__item summary::-webkit-details-marker{ display:none; }
.accordion__item p{ margin:0 0 20px 26px; color:var(--ink-soft); }

/* ===================================================================
   Footer
   =================================================================== */
.site-footer{ border-top:1px solid var(--line); padding-block:clamp(40px,7vw,60px); margin-top:clamp(56px,8vw,84px); }
.site-footer__inner{ display:flex; flex-direction:column; align-items:flex-start; gap:18px; }
.site-footer__brand{ font-family:var(--font-display); font-size:1.1rem; margin:0; }
.site-footer__meta{ font-family:var(--font-mono); font-size:.72rem; color:var(--ink-faint); margin:0; }