/* ============================================================
   Mal Pensador · Páginas SEO
   Sistema editorial compartido para /conferencista-colombia,
   /conferencista-empresarial, /libros-liderazgo, /pensamiento-critico
   ============================================================ */

:root {
  --black: #080808;
  --cream: #F5F4F0;
  --red:   #8B1A1A;
  --white: #F0F0F0;
  --gray:  #666666;
  --serif: Georgia, "Times New Roman", serif;
  --sans:  "Raleway", -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--black);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: var(--red); color: var(--white); }

/* --------- NAV --------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 40px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(8,8,8,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(240,240,240,.08);
}
.nav .brand { display:flex; align-items:center; gap:14px; color:var(--white); font-weight:700; letter-spacing:.22em; font-size:13px; text-transform:uppercase; }
.nav .brand .m { font-family: var(--serif); color: var(--red); font-size: 26px; line-height: 1; letter-spacing: 0; transform: translateY(1px); }
.nav .brand .rule { width: 14px; height: 1.5px; background: var(--red); display: inline-block; }
.nav ul { display:flex; gap:28px; list-style:none; color:var(--white); font-size:12px; letter-spacing:.22em; text-transform:uppercase; font-weight:500; }
.nav ul a { position:relative; padding:6px 0; opacity:.72; transition: opacity .2s; }
.nav ul a:hover, .nav ul a.current { opacity: 1; }
.nav ul a.current::before { content:""; position:absolute; left:-10px; top:50%; width:4px; height:4px; background: var(--red); border-radius:50%; transform: translateY(-50%); }
.nav .cta {
  color: var(--white); font-size:12px; letter-spacing:.22em; text-transform:uppercase;
  font-weight:600; padding:11px 20px; border:1px solid var(--red); background: var(--red);
  transition: background .2s;
}
.nav .cta:hover { background: transparent; }
@media (max-width: 900px) { .nav { padding: 12px 20px; } .nav ul { display: none; } }

/* --------- BREADCRUMB --------- */
.crumb {
  padding: 140px 40px 0;
  background: var(--black);
  color: var(--white);
}
.crumb-inner {
  max-width: 1280px; margin: 0 auto;
  font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--white); opacity: .5;
  display: flex; gap: 14px; flex-wrap: wrap;
}
.crumb-inner a { opacity: 1; color: var(--white); }
.crumb-inner a:hover { color: var(--red); }
.crumb-inner .sep { opacity: .4; }
.crumb-inner .here { color: var(--red); opacity: 1; }
@media (max-width: 700px) { .crumb { padding: 120px 20px 0; } }

/* --------- PAGE HERO --------- */
.phero {
  background: var(--black);
  color: var(--white);
  padding: 60px 40px 110px;
  position: relative;
  overflow: hidden;
}
.phero .inner { max-width: 1280px; margin: 0 auto; position: relative; z-index: 2; }
.phero .kicker {
  display: flex; align-items: center; gap: 18px;
  font-size: 11px; letter-spacing: .34em; text-transform: uppercase;
  color: var(--red); font-weight: 700;
  margin-bottom: 40px;
}
.phero .kicker .num { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--white); opacity: .7; }
.phero .kicker .line { flex: 1; height: 1px; background: rgba(240,240,240,.15); max-width: 200px; }
.phero h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(44px, 7vw, 108px);
  line-height: 0.98; letter-spacing: -0.025em;
  margin-bottom: 36px;
  max-width: 14ch;
}
.phero h1 em { font-style: italic; color: var(--red); font-weight: 400; }
.phero .lede {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(20px, 2.1vw, 28px);
  line-height: 1.45; max-width: 780px;
  opacity: .85;
  border-left: 2px solid var(--red);
  padding-left: 22px;
}
.phero .meta {
  margin-top: 60px;
  padding-top: 28px;
  border-top: 1px solid rgba(240,240,240,.12);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px;
  font-size: 12px; letter-spacing: .14em;
}
.phero .meta dt { font-size: 10px; letter-spacing: .3em; text-transform: uppercase; color: var(--red); font-weight: 700; margin-bottom: 8px; }
.phero .meta dd { font-family: var(--serif); font-size: 16px; line-height: 1.4; opacity: .9; }
@media (max-width: 900px) { .phero .meta { grid-template-columns: repeat(2, 1fr); gap: 28px; } }
@media (max-width: 700px) { .phero { padding: 40px 20px 80px; } .phero .meta { grid-template-columns: 1fr; } }

/* --------- CONTENT CHAPTERS --------- */
.chapter {
  padding: 110px 40px;
  border-top: 1px solid rgba(8,8,8,.08);
}
.chapter.dark { background: var(--black); color: var(--white); border-color: rgba(240,240,240,.08); }
.chapter .wrap { max-width: 1080px; margin: 0 auto; }
.chapter .wrap.wide { max-width: 1280px; }
.chapter-mark {
  display: flex; align-items: center; gap: 18px;
  font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--red); font-weight: 700;
  margin-bottom: 44px;
}
.chapter-mark .num { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--gray); }
.chapter.dark .chapter-mark .num { color: rgba(240,240,240,.5); }
.chapter-mark .line { flex: 1; height: 1px; background: rgba(8,8,8,.12); max-width: 260px; }
.chapter.dark .chapter-mark .line { background: rgba(240,240,240,.12); }

.chapter h1,
.chapter h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(34px, 4.4vw, 62px);
  line-height: 1.05; letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 18ch;
  text-wrap: balance;
}
.chapter h1 em,
.chapter h2 em { font-style: italic; color: var(--red); font-weight: 400; }
.chapter h3 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.2; letter-spacing: -0.01em;
  margin: 40px 0 14px;
}
.chapter p {
  font-family: var(--serif);
  font-size: 18px; line-height: 1.7;
  max-width: 68ch;
  margin-bottom: 18px;
  opacity: .92;
}
.chapter p.lede {
  font-size: 22px; font-style: italic; opacity: 1;
  border-left: 2px solid var(--red); padding-left: 20px;
  margin-bottom: 44px; max-width: 60ch;
}

/* --------- PULLQUOTE --------- */
.pullquote {
  margin: 70px 0; padding: 50px 0;
  border-top: 1px solid rgba(8,8,8,.15);
  border-bottom: 1px solid rgba(8,8,8,.15);
  text-align: left;
}
.chapter.dark .pullquote { border-color: rgba(240,240,240,.15); }
.pullquote blockquote {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.15; letter-spacing: -0.02em;
  max-width: 22ch;
  text-wrap: balance;
}
.pullquote blockquote::before { content: "“"; color: var(--red); font-size: 1.2em; line-height: 0; position: relative; top: .18em; }
.pullquote cite {
  display: block; margin-top: 22px;
  font-family: var(--sans); font-size: 11px; letter-spacing: .3em;
  font-style: normal; text-transform: uppercase; font-weight: 600;
  color: var(--red);
}

/* --------- LIST / KEY POINTS --------- */
.key-list { counter-reset: kitem; margin: 40px 0; }
.key-list li {
  list-style: none;
  padding: 26px 0 26px 70px;
  position: relative;
  border-top: 1px solid rgba(8,8,8,.12);
  font-family: var(--serif); font-size: 19px; line-height: 1.55;
  max-width: 70ch;
}
.chapter.dark .key-list li { border-color: rgba(240,240,240,.12); }
.key-list li:last-child { border-bottom: 1px solid rgba(8,8,8,.12); }
.chapter.dark .key-list li:last-child { border-color: rgba(240,240,240,.12); }
.key-list li::before {
  counter-increment: kitem;
  content: counter(kitem, decimal-leading-zero);
  position: absolute; left: 0; top: 28px;
  font-family: var(--sans); font-size: 12px; letter-spacing: .25em;
  font-weight: 700; color: var(--red);
}
.key-list li strong { font-weight: 700; display: block; margin-bottom: 6px; font-size: 20px; }
.key-list li span { opacity: .8; font-size: 17px; }

/* --------- TWO COLUMN --------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 40px; } }

/* --------- FORMAT GRID (keynote types / program types) --------- */
.fmt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(8,8,8,.12); margin-top: 40px; }
.chapter.dark .fmt-grid { background: rgba(240,240,240,.12); }
.fmt-grid > div { background: var(--cream); padding: 36px 30px 40px; }
.chapter.dark .fmt-grid > div { background: var(--black); }
.fmt-grid h4 { font-family: var(--serif); font-size: 22px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em; }
.fmt-grid .tag { font-size: 10px; letter-spacing: .3em; text-transform: uppercase; color: var(--red); font-weight: 700; margin-bottom: 20px; display: block; }
.fmt-grid .dur { font-family: var(--serif); font-style: italic; font-size: 14px; opacity: .6; margin-top: 20px; }
.fmt-grid p { font-size: 15px; line-height: 1.55; opacity: .82; margin: 0; max-width: none; }
@media (max-width: 900px) { .fmt-grid { grid-template-columns: 1fr; } }

/* --------- CTA BAND --------- */
.cta-band {
  background: var(--red); color: var(--white);
  padding: 80px 40px;
  text-align: left;
}
.cta-band .wrap { max-width: 1080px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-band h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.1; max-width: 20ch; letter-spacing: -0.02em;
  text-wrap: balance;
}
.cta-band .btn {
  background: var(--black); color: var(--white);
  padding: 20px 32px; font-size: 12px; letter-spacing: .25em; text-transform: uppercase;
  font-weight: 700; transition: background .2s;
  display: inline-flex; align-items: center; gap: 14px;
}
.cta-band .btn:hover { background: var(--cream); color: var(--black); }
.cta-band .btn .ar { font-family: var(--serif); font-size: 18px; }

/* --------- RELATED PAGES (internal linking) --------- */
.related { padding: 100px 40px; background: var(--black); color: var(--white); border-top: 1px solid rgba(240,240,240,.08); }
.related .wrap { max-width: 1280px; margin: 0 auto; }
.related h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(30px, 3.6vw, 48px);
  letter-spacing: -0.02em; margin-bottom: 12px;
}
.related .sub { font-family: var(--serif); font-style: italic; opacity: .6; margin-bottom: 50px; font-size: 17px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(240,240,240,.1); }
.related-card {
  background: var(--black); padding: 40px 34px 34px;
  display: flex; flex-direction: column; gap: 16px;
  transition: background .25s;
  position: relative;
}
.related-card:hover { background: #0f0f0f; }
.related-card .n { font-family: var(--serif); font-style: italic; font-size: 14px; opacity: .5; }
.related-card h3 { font-family: var(--serif); font-weight: 700; font-size: 24px; line-height: 1.15; max-width: 15ch; letter-spacing: -0.01em; }
.related-card p { font-size: 14px; opacity: .7; line-height: 1.5; }
.related-card .go { margin-top: auto; padding-top: 30px; font-size: 11px; letter-spacing: .3em; text-transform: uppercase; font-weight: 700; color: var(--red); display: flex; align-items: center; gap: 10px; }
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr; } }

/* --------- FOOTER --------- */
.foot {
  background: #050505; color: var(--white);
  padding: 60px 40px 40px;
  font-size: 13px;
}
.foot .wrap { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.foot h5 { font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--red); font-weight: 700; margin-bottom: 18px; }
.foot ul { list-style: none; }
.foot ul li { margin-bottom: 10px; opacity: .8; }
.foot ul li a:hover { color: var(--red); opacity: 1; }
.foot .brand { font-family: var(--serif); font-weight: 700; font-size: 28px; letter-spacing: -0.01em; }
.foot .brand span { color: var(--red); }
.foot p { opacity: .55; line-height: 1.6; margin-top: 14px; max-width: 42ch; }
.foot .bottom { max-width: 1280px; margin: 60px auto 0; padding-top: 24px; border-top: 1px solid rgba(240,240,240,.08); display: flex; justify-content: space-between; opacity: .5; font-size: 11px; letter-spacing: .15em; text-transform: uppercase; }
@media (max-width: 900px) { .foot .wrap { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .foot .wrap { grid-template-columns: 1fr; } .foot .bottom { flex-direction: column; gap: 10px; } }

/* --------- UTIL --------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s, transform .7s; }
.reveal.in { opacity: 1; transform: none; }