/* ============================================================
   DEVPULSO — hoja de estilos compartida
   Adaptada del template "El Pulso" (noticiero) a blog de programación.
   1) tokens  2) base  3) header/nav  4) hero  5) pulso  6) categorías
   7) reportaje  8) valores  9) más leídos  10) newsletter  11) footer
   12) responsive  13) artículo  14) componentes interactivos
   15) páginas de confianza  16) tema oscuro
   ============================================================ */

/* 1) VARIABLES DE MARCA */
:root{
  --charcoal:      #1C1F26;
  --charcoal-deep: #14161B;
  --white:         #F7F5F0;
  --white-dim:     #ECE9E1;
  --red:           #D8434F;
  --teal:          #2E8F92;
  --amber:         #E9A23B;
  --slate:         #5C7A99;
  --purple:        #7B5EA7;
  --ink:           #23262E;

  --font-display: 'Big Shoulders Display', sans-serif;
  --font-body: 'Newsreader', serif;
  --font-mono: 'Roboto Mono', 'Courier New', monospace;

  --section-pad: clamp(3.5rem, 8vw, 7rem);
  --edge-pad: clamp(1.25rem, 5vw, 4rem);

  --bg: var(--white);
  --bg-dim: var(--white-dim);
  --surface: var(--charcoal);
  --surface-deep: var(--charcoal-deep);
  --text: var(--ink);
  --text-dim: #5b5e56;
  --border: rgba(20,23,28,0.1);
}

:root[data-theme="dark"]{
  --bg: #16181D;
  --bg-dim: #1D2027;
  --surface: #0F1013;
  --surface-deep: #0A0B0D;
  --text: #ECEAE3;
  --text-dim: #A9ACA2;
  --border: rgba(247,245,240,0.12);
  --white-dim: #22252C;
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight:400;
  line-height:1.65;
  overflow-x:hidden;
  transition: background .3s ease, color .3s ease;
}
img{ max-width:100%; display:block; }
h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight:800;
  line-height:1.05;
  letter-spacing:0.01em;
  text-transform:uppercase;
}
a{ color:inherit; text-decoration:none; }
.wrap{ max-width:1320px; margin:0 auto; padding-left:var(--edge-pad); padding-right:var(--edge-pad); }

.tag{
  display:inline-flex; align-items:center; gap:0.4rem;
  font-family:var(--font-display); font-size:0.72rem; font-weight:700;
  letter-spacing:0.1em; text-transform:uppercase;
  padding:0.3rem 0.7rem; border-radius:100px;
}
.tag.fundamentos{ background:rgba(46,143,146,0.14); color:var(--teal); }
.tag.frameworks{ background:rgba(233,162,59,0.16); color:#a5691c; }
:root[data-theme="dark"] .tag.frameworks{ color:var(--amber); }
.tag.carrera{ background:rgba(92,122,153,0.16); color:var(--slate); }
.tag.practicas{ background:rgba(216,67,79,0.12); color:var(--red); }
.tag.basededatos{ background:rgba(123,94,167,0.16); color:var(--purple); }
.tag.reportaje{ background:var(--ink); color:var(--white); }
:root[data-theme="dark"] .tag.reportaje{ background:var(--white); color:var(--ink); }

.eyebrow{
  font-family:var(--font-display); font-size:0.78rem; letter-spacing:0.22em;
  text-transform:uppercase; color: var(--teal); font-weight:700;
  margin-bottom:0.9rem; display:block;
}

.reveal{ opacity:0; transform:translateY(26px); transition:opacity .8s cubic-bezier(.25,.7,.35,1), transform .8s cubic-bezier(.25,.7,.35,1); }
.reveal.is-visible{ opacity:1; transform:none; }

.live-badge{
  display:inline-flex; align-items:center; gap:0.5rem;
  font-family:var(--font-display); font-size:0.72rem; font-weight:700;
  letter-spacing:0.14em; color: var(--red);
}
.live-dot{
  width:8px; height:8px; border-radius:50%; background: var(--red);
  box-shadow:0 0 0 0 rgba(216,67,79,0.6); animation: pulseDot 1.8s ease-out infinite;
}
@keyframes pulseDot{
  0%{ box-shadow:0 0 0 0 rgba(216,67,79,0.55); }
  70%{ box-shadow:0 0 0 8px rgba(216,67,79,0); }
  100%{ box-shadow:0 0 0 0 rgba(216,67,79,0); }
}

/* 2b) THEME TOGGLE */
.theme-toggle{
  display:flex; align-items:center; justify-content:center;
  width:34px; height:34px; border:1px solid rgba(247,245,240,0.3); border-radius:50%;
  background:none; cursor:pointer; color:var(--white); font-size:0.95rem;
}

/* 3) HEADER + TICKER */
header.site-head{ position:sticky; top:0; z-index:200; background: var(--surface); color: var(--white); }
.masthead{ display:flex; align-items:center; justify-content:space-between; padding:1.1rem var(--edge-pad); border-bottom:1px solid rgba(247,245,240,0.08); }
.logo{ font-family:var(--font-display); font-size:1.7rem; font-weight:900; letter-spacing:0.02em; color: var(--white); }
.logo span{ color: var(--red); }
nav.main-nav ul{ list-style:none; display:flex; gap:2rem; }
nav.main-nav a{
  font-family:var(--font-display); font-size:0.82rem; font-weight:600; letter-spacing:0.08em;
  text-transform:uppercase; color: rgba(247,245,240,0.75); position:relative; padding-bottom:4px;
  transition:color .3s ease;
}
nav.main-nav a::after{ content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background: var(--teal); transition: width .3s ease; }
nav.main-nav a:hover{ color: var(--white); }
nav.main-nav a:hover::after{ width:100%; }
nav.main-nav a.active{ color: var(--white); }
nav.main-nav a.active::after{ width:100%; }

.head-right{ display:flex; align-items:center; gap:1.2rem; }
.date-str{ font-size:0.76rem; color:rgba(247,245,240,0.5); letter-spacing:0.04em; }

.nav-toggle{
  display:none; width:38px; height:38px; border:1px solid rgba(247,245,240,0.3); border-radius:4px;
  flex-direction:column; align-items:center; justify-content:center; gap:4px; cursor:pointer; background:none;
}
.nav-toggle span{ width:16px; height:1.5px; background:var(--white); display:block; }

.ticker-bar{ display:flex; align-items:center; background: var(--surface-deep); overflow:hidden; }
.ticker-label{
  flex-shrink:0; display:flex; align-items:center; gap:0.5rem; background: var(--red); color: var(--white);
  font-family:var(--font-display); font-size:0.72rem; font-weight:800; letter-spacing:0.1em;
  padding:0.55rem 1rem; text-transform:uppercase; z-index:1;
}
.ticker-track{ display:flex; white-space:nowrap; animation: tickerScroll 32s linear infinite; }
.ticker-track span{ padding:0.55rem 2.2rem 0.55rem 0; font-size:0.85rem; color: rgba(247,245,240,0.8); }
.ticker-track span::after{ content:'•'; margin-left:2.2rem; color: var(--amber); }
@keyframes tickerScroll{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

.mobile-nav{ display:none; flex-direction:column; background: var(--surface-deep); padding:0.5rem var(--edge-pad) 1.2rem; }
.mobile-nav a{
  padding:0.7rem 0; border-bottom:1px solid rgba(247,245,240,0.08); font-family:var(--font-display);
  font-size:0.9rem; letter-spacing:0.06em; text-transform:uppercase; color: rgba(247,245,240,0.85);
}
.mobile-nav.open{ display:flex; }

/* reading progress bar (article pages) */
.reading-progress{ position:sticky; top:0; z-index:199; height:3px; background:transparent; }
.reading-progress-bar{ height:100%; width:0%; background: var(--teal); transition:width .1s linear; }

/* 4) HERO */
.hero{ position:relative; background: var(--surface); color: var(--white); padding: clamp(3rem,7vw,5.5rem) 0 clamp(5rem,10vw,8rem); overflow:hidden; }
.hero-watermark{
  position:absolute; right:-2vw; top:10%; font-family:var(--font-display); font-size:min(22vw,260px);
  font-weight:900; color: rgba(247,245,240,0.045); letter-spacing:0.02em; writing-mode:vertical-rl;
  pointer-events:none; user-select:none;
}
.hero-grid{ display:grid; grid-template-columns: 1.5fr 1fr; gap:3rem; align-items:start; position:relative; z-index:1; }
.hero-main .tag{ margin-bottom:1.2rem; }
.hero-main h1{ font-size:clamp(2.4rem, 4.6vw, 3.8rem); margin-bottom:1.2rem; }
.hero-main p.deck{ font-family:var(--font-body); font-size:1.15rem; color: rgba(247,245,240,0.72); max-width:560px; margin-bottom:1.4rem; }
.byline{ display:flex; align-items:center; gap:1rem; font-size:0.82rem; color: rgba(247,245,240,0.55); font-family:var(--font-display); letter-spacing:0.04em; flex-wrap:wrap; }
.hero-media{ aspect-ratio:16/10; background: linear-gradient(150deg,#2c4a52,#1c2e33); margin-top:0.3rem; position:relative; overflow:hidden; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }

.hero-side{ display:flex; flex-direction:column; gap:1.4rem; }
.side-card{ background: rgba(247,245,240,0.05); border:1px solid rgba(247,245,240,0.1); padding:1.3rem; transition: background .35s ease, transform .35s ease; }
.side-card:hover{ background: rgba(247,245,240,0.09); transform:translateX(-4px); }
.side-card .tag{ margin-bottom:0.7rem; }
.side-card h3{ font-size:1.15rem; color: var(--white); margin-bottom:0.5rem; text-transform:none; }
.side-card span.meta{ font-size:0.74rem; color:rgba(247,245,240,0.45); font-family:var(--font-display); letter-spacing:0.06em; }

/* 5) LÍNEA DE PULSO */
.pulse-divider{ background: var(--bg); padding: clamp(2.5rem,5vw,4rem) 0; position:relative; }
.pulse-divider .wrap{ position:relative; }
.pulse-svg{ width:100%; height:110px; overflow:visible; display:block; }
.pulse-svg path{ fill:none; stroke: var(--teal); stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; }
.pulse-dot{
  fill: var(--red);
  offset-path: path('M0,55 L120,55 L145,10 L170,100 L195,55 L340,55 L365,15 L390,95 L415,55 L620,55 L645,8 L670,102 L695,55 L900,55 L925,18 L950,92 L975,55 L1200,55');
  offset-rotate: 0deg; animation: dotMove 6s linear infinite;
}
@keyframes dotMove{ 0%{ offset-distance:0%; } 100%{ offset-distance:100%; } }
.pulse-labels{ display:flex; justify-content:space-between; margin-top:0.6rem; font-family:var(--font-display); font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:#77776b; }

/* 6) GRID DE CATEGORÍAS */
.category-section{ background: var(--bg); padding: var(--section-pad) 0; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:2.6rem; gap:1.5rem; flex-wrap:wrap; }
.section-head h2{ font-size:clamp(1.8rem,3.4vw,2.6rem); }
.section-head .see-all{ font-family:var(--font-display); font-size:0.8rem; letter-spacing:0.08em; text-transform:uppercase; color: var(--teal); border-bottom:1.5px solid var(--teal); padding-bottom:2px; }

.cat-grid{ display:grid; grid-template-columns: repeat(6, 1fr); gap:1.6rem; }
.cat-card{ position:relative; background: var(--bg-dim); border:1px solid var(--border); overflow:hidden; transition: box-shadow .35s ease, transform .35s ease; display:flex; flex-direction:column; }
.cat-card:hover{ box-shadow:0 20px 40px -20px rgba(20,23,28,0.25); transform:translateY(-4px); }
.cat-card .thumb{ aspect-ratio:16/10; background: linear-gradient(135deg,#2E8F92,#1C1F26); overflow:hidden; }
.cat-card .thumb img{ width:100%; height:100%; object-fit:cover; display:block; }
.cat-card.c1{ grid-column:span 4; grid-row:span 2; }
.cat-card.c1 .thumb{ aspect-ratio:16/9; }
.cat-card.c2{ grid-column:span 2; grid-row:span 2; }
.cat-card.c2 .thumb{ background: linear-gradient(135deg,#E9A23B,#8a5f1f); }
.cat-card.c3{ grid-column:span 2; }
.cat-card.c3 .thumb{ background: linear-gradient(135deg,#5C7A99,#28384a); }
.cat-card.c4{ grid-column:span 2; }
.cat-card.c4 .thumb{ background: linear-gradient(135deg,#D8434F,#6e232b); }
.cat-card.c5{ grid-column:span 2; }
.cat-card.c5 .thumb{ background: linear-gradient(135deg,#7B5EA7,#3c2e52); }

.cat-body{ padding:1.3rem 1.4rem 1.5rem; flex:1; display:flex; flex-direction:column; }
.cat-body .tag{ align-self:flex-start; margin-bottom:0.7rem; }
.cat-body h3{ font-size:1.15rem; text-transform:none; margin-bottom:0.6rem; line-height:1.25; }
.cat-card.c1 .cat-body h3{ font-size:1.65rem; }
.cat-body p{ font-size:0.92rem; color:var(--text-dim); margin-bottom:0.8rem; }
.cat-body .meta{ margin-top:auto; font-family:var(--font-display); font-size:0.72rem; letter-spacing:0.06em; color:#8b8d84; }

/* thumb — color de respaldo por categoría (detrás de la imagen real) */
.thumb.cat-fundamentos{ background:linear-gradient(135deg,#2E8F92,#1C1F26); }
.thumb.cat-frameworks{ background:linear-gradient(135deg,#E9A23B,#8a5f1f); }
.thumb.cat-carrera{ background:linear-gradient(135deg,#5C7A99,#28384a); }
.thumb.cat-practicas{ background:linear-gradient(135deg,#D8434F,#6e232b); }
.thumb.cat-basededatos{ background:linear-gradient(135deg,#7B5EA7,#3c2e52); }

/* ARCHIVO — todos los artículos */
.archive-section{ background:var(--bg); padding: var(--section-pad) 0; }
.archive-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.6rem; }
.archive-grid .cat-card{ grid-column:auto; grid-row:auto; }
.archive-grid .cat-card .thumb{ aspect-ratio:16/10; }
.filter-bar{ display:flex; gap:0.6rem; flex-wrap:wrap; margin-bottom:2rem; }
.filter-btn{ font-family:var(--font-display); font-size:0.75rem; letter-spacing:0.05em; text-transform:uppercase; padding:0.5rem 1rem; border-radius:100px; border:1px solid var(--border); background:var(--bg-dim); color:var(--text-dim); cursor:pointer; }
.filter-btn.active{ background:var(--ink); color:var(--white); border-color:var(--ink); }
:root[data-theme="dark"] .filter-btn.active{ background:var(--white); color:var(--ink); }
@media (max-width:980px){ .archive-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .archive-grid{ grid-template-columns:1fr; } }

/* 7) REPORTAJE DESTACADO */
.feature{ background: var(--surface); color: var(--white); padding: var(--section-pad) 0; }
.feature-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:3.5rem; align-items:center; }
.feature-media{ aspect-ratio:4/5; background: linear-gradient(160deg,#3a3f4a,#1C1F26); clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%); overflow:hidden; }
.feature-media img{ width:100%; height:100%; object-fit:cover; }
.feature-text .tag.reportaje{ margin-bottom:1.2rem; }
.feature-text h2{ font-size:clamp(1.9rem,3.6vw,2.8rem); margin-bottom:1.1rem; }
.feature-text p{ color:rgba(247,245,240,0.68); margin-bottom:1rem; max-width:520px; }
.feature-meta{ display:flex; gap:1.6rem; margin-top:1.5rem; font-family:var(--font-display); font-size:0.78rem; letter-spacing:0.06em; color:rgba(247,245,240,0.5); }
.btn{
  display:inline-flex; align-items:center; gap:0.6rem; margin-top:1.6rem; padding:0.85rem 1.8rem;
  border:1px solid var(--white); font-family:var(--font-display); font-size:0.8rem; font-weight:700;
  letter-spacing:0.1em; text-transform:uppercase; position:relative; overflow:hidden; color:var(--white);
  cursor:pointer; background:none;
}
.btn::before{ content:''; position:absolute; inset:0; background: var(--white); transform:scaleX(0); transform-origin:left; transition:transform .4s cubic-bezier(.65,0,.35,1); z-index:-1; }
.btn:hover{ color:var(--charcoal); }
.btn:hover::before{ transform:scaleX(1); }
.btn.btn-dark{ border-color: var(--ink); color: var(--ink); }
.btn.btn-dark::before{ background: var(--ink); }
.btn.btn-dark:hover{ color: var(--white); }

/* 8) VALORES ("por qué DevPulso") — clases heredadas de "columnists" */
.columnists{ background: var(--bg); padding: var(--section-pad) 0; }
.col-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:2.2rem; }
.col-card{ padding:2rem 1.6rem; background: var(--bg-dim); border-top:3px solid var(--teal); transition: transform .35s ease; }
.col-card:nth-child(2){ border-top-color: var(--amber); }
.col-card:nth-child(3){ border-top-color: var(--red); }
.col-card:hover{ transform:translateY(-6px); }
.avatar{ width:56px; height:56px; border-radius:50%; background: linear-gradient(135deg,#5C7A99,#1C1F26); margin-bottom:1.1rem; display:flex; align-items:center; justify-content:center; font-family:var(--font-display); color:var(--white); font-weight:800; }
.col-card h3{ font-size:1.1rem; text-transform:none; margin-bottom:0.2rem; }
.col-card .role{ font-family:var(--font-display); font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:#8b8d84; margin-bottom:1rem; display:block; }
.col-card p.quote{ font-style:italic; font-size:1.02rem; color:var(--text); }

/* 9) MÁS LEÍDOS */
.most-read{ background: var(--bg-dim); padding: var(--section-pad) 0; }
.rank-list{ counter-reset: rank; }
.rank-item{ display:grid; grid-template-columns:70px 1fr auto; align-items:center; gap:1.5rem; padding:1.4rem 0; border-bottom:1px solid var(--border); transition:padding-left .3s ease; }
.rank-item:hover{ padding-left:0.6rem; }
.rank-num{ font-family:var(--font-display); font-size:2.4rem; font-weight:900; color: rgba(28,31,38,0.15); }
:root[data-theme="dark"] .rank-num{ color: rgba(247,245,240,0.15); }
.rank-item h3{ font-size:1.05rem; text-transform:none; }
.rank-item .tag{ margin-top:0.5rem; }

/* 10) NEWSLETTER */
.newsletter{ background: var(--surface); color: var(--white); padding: var(--section-pad) 0; position:relative; overflow:hidden; }
.dial{ position:absolute; right:-80px; top:50%; transform:translateY(-50%); width:340px; height:340px; border-radius:50%; border:1px dashed rgba(247,245,240,0.14); }
.dial::before, .dial::after{ content:''; position:absolute; inset:40px; border-radius:50%; border:1px dashed rgba(247,245,240,0.1); }
.dial::after{ inset:80px; }
.news-inner{ max-width:560px; position:relative; z-index:1; }
.newsletter h2{ font-size:clamp(1.9rem,3.6vw,2.7rem); margin-bottom:1rem; }
.newsletter p{ color:rgba(247,245,240,0.68); margin-bottom:1.8rem; }
.news-form{ display:flex; flex-direction:column; gap:0.55rem; }
.news-field{ display:flex; gap:0.8rem; flex-wrap:wrap; }
.news-form input{ flex:1; min-width:220px; background: transparent; border:none; border-bottom:1.5px solid rgba(247,245,240,0.35); padding:0.8rem 0.2rem; font-family:var(--font-body); font-size:1rem; color: var(--white); transition:border-color .2s ease; }
.news-form input::placeholder{ color:rgba(247,245,240,0.4); }
.news-form input:focus{ outline:none; border-color:var(--teal); }
.news-form input.valid{ border-color:var(--teal); }
.news-form input.invalid{ border-color:var(--red); }
.news-form button{ position:relative; flex-shrink:0; min-width:158px; background: var(--teal); border:none; padding:0.85rem 1.8rem; font-family:var(--font-display); font-weight:700; font-size:0.8rem; letter-spacing:0.1em; text-transform:uppercase; color: var(--charcoal-deep); cursor:pointer; transition: background .3s ease, opacity .2s ease; display:inline-flex; align-items:center; justify-content:center; gap:0.55rem; }
.news-form button:hover{ background:#3aa4a7; }
.news-form button:disabled{ opacity:0.75; cursor:default; }
.btn-spinner{ display:none; width:13px; height:13px; border-radius:50%; border:2px solid rgba(20,23,28,0.3); border-top-color:var(--charcoal-deep); animation:spin .7s linear infinite; }
.news-form button.loading .btn-label{ opacity:0.7; }
.news-form button.loading .btn-spinner{ display:inline-block; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.news-feedback{ font-size:0.86rem; min-height:1.3em; margin:0; color:rgba(247,245,240,0.55); transition:color .2s ease; }
.news-feedback.error{ color:#ff9c9c; }
.news-feedback.success{ color:#8fe3cd; }
.form-note{ display:block; width:100%; font-size:0.78rem; color:rgba(247,245,240,0.45); margin-top:0.5rem; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* 11) FOOTER */
footer{ background: var(--surface-deep); color:rgba(247,245,240,0.7); padding:4rem 0 2rem; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:2.5rem; padding-bottom:2.6rem; border-bottom:1px solid rgba(247,245,240,0.1); }
footer .logo{ margin-bottom:0.8rem; }
footer p.desc{ font-size:0.85rem; color:rgba(247,245,240,0.5); max-width:260px; }
footer h4{ font-family:var(--font-display); font-size:0.85rem; letter-spacing:0.08em; text-transform:uppercase; color: var(--teal); margin-bottom:1rem; }
footer ul{ list-style:none; }
footer li{ margin-bottom:0.6rem; font-size:0.88rem; }
footer a:hover{ color: var(--white); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:1.6rem; font-size:0.75rem; color:rgba(247,245,240,0.4); flex-wrap:wrap; gap:1rem; }
.footer-bottom a{ color:inherit; }
.footer-bottom a:hover{ color:var(--white); }

/* 13) PÁGINA DE ARTÍCULO */
.breadcrumbs{ padding:1.1rem 0; background:var(--bg-dim); font-family:var(--font-display); font-size:0.72rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--text-dim); }
.breadcrumbs a:hover{ color:var(--teal); }
.breadcrumbs span.sep{ margin:0 0.5rem; opacity:.5; }

.article-hero{ background:var(--surface); color:var(--white); padding: clamp(2.5rem,6vw,4rem) 0 0; }
.article-hero .tag{ margin-bottom:1.1rem; }
.article-hero h1{ font-size:clamp(2rem,4.2vw,3.2rem); margin-bottom:1.1rem; max-width:900px; }
.article-hero .deck{ font-family:var(--font-body); font-size:1.1rem; color:rgba(247,245,240,0.72); max-width:680px; margin-bottom:1.3rem; }
.article-cover{ width:100%; aspect-ratio:21/9; overflow:hidden; margin-top:1.6rem; }
.article-cover img{ width:100%; height:100%; object-fit:cover; }

.article-layout{ display:grid; grid-template-columns: minmax(0,760px) 300px; gap:3.5rem; padding: clamp(2.5rem,6vw,4rem) 0; max-width:1320px; margin:0 auto; padding-left:var(--edge-pad); padding-right:var(--edge-pad); align-items:start; }
.article-body{ min-width:0; }
.article-body > *{ max-width:760px; }
.article-body p{ margin-bottom:1.3rem; font-size:1.08rem; }
.article-body h2{ text-transform:none; font-size:1.55rem; margin:2.4rem 0 1rem; line-height:1.2; }
.article-body h3{ text-transform:none; font-size:1.2rem; margin:1.8rem 0 0.8rem; }
.article-body ul, .article-body ol{ margin:0 0 1.3rem 1.4rem; }
.article-body li{ margin-bottom:0.5rem; font-size:1.05rem; }
.article-body strong{ font-weight:700; }
.article-body a{ color:var(--teal); text-decoration:underline; text-underline-offset:2px; }
.article-body blockquote{ border-left:3px solid var(--teal); padding:0.3rem 0 0.3rem 1.4rem; margin:1.6rem 0; font-style:italic; font-size:1.15rem; color:var(--text-dim); }
.article-body code:not(pre code){ font-family:var(--font-mono); background:var(--bg-dim); padding:0.15rem 0.4rem; border-radius:4px; font-size:0.9em; }
.article-body figure{ margin:2rem 0; }
.article-body figcaption{ font-family:var(--font-display); font-size:0.75rem; letter-spacing:0.04em; color:var(--text-dim); margin-top:0.7rem; text-align:center; }
.article-body table{ width:100%; border-collapse:collapse; margin:1.6rem 0; font-size:0.95rem; }
.article-body th, .article-body td{ border:1px solid var(--border); padding:0.7rem 0.9rem; text-align:left; }
.article-body th{ background:var(--bg-dim); font-family:var(--font-display); font-size:0.78rem; letter-spacing:0.04em; text-transform:uppercase; }

.author-box{ display:flex; gap:1rem; align-items:center; background:var(--bg-dim); border:1px solid var(--border); padding:1.2rem 1.4rem; margin:2.2rem 0; max-width:760px; }
.author-box .avatar{ flex-shrink:0; width:52px; height:52px; }
.author-box h4{ text-transform:none; font-size:1rem; margin-bottom:0.2rem; }
.author-box p{ font-size:0.88rem; color:var(--text-dim); margin:0; }

.article-sidebar{ display:flex; flex-direction:column; gap:1.6rem; position:sticky; top:100px; }
.sidebar-card{ background:var(--bg-dim); border:1px solid var(--border); padding:1.3rem; }
.sidebar-card h4{ font-family:var(--font-display); font-size:0.8rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--teal); margin-bottom:1rem; }
.sidebar-card ul{ list-style:none; display:flex; flex-direction:column; gap:0.8rem; }
.sidebar-card a{ font-size:0.92rem; line-height:1.35; }
.sidebar-card a:hover{ color:var(--teal); }

.related-section{ background:var(--bg-dim); padding: var(--section-pad) 0; }
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.6rem; }

/* 14) COMPONENTES INTERACTIVOS */
.code-block{ margin:1.8rem 0; border-radius:6px; overflow:hidden; background:var(--charcoal-deep); max-width:760px; }
.code-block-head{ display:flex; align-items:center; justify-content:space-between; padding:0.55rem 1rem; background:rgba(247,245,240,0.06); }
.code-block-head span{ font-family:var(--font-display); font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:rgba(247,245,240,0.5); }
.copy-btn{ font-family:var(--font-display); font-size:0.7rem; letter-spacing:0.05em; text-transform:uppercase; color:rgba(247,245,240,0.7); background:none; border:1px solid rgba(247,245,240,0.25); border-radius:4px; padding:0.3rem 0.7rem; cursor:pointer; transition:.2s; }
.copy-btn:hover{ background:rgba(247,245,240,0.12); color:#fff; }
.copy-btn.copied{ border-color:var(--teal); color:var(--teal); }
.code-block pre{ margin:0; padding:1.2rem 1.4rem; overflow-x:auto; }
.code-block code{ font-family:var(--font-mono); font-size:0.88rem; line-height:1.6; color:#E9E7DF; white-space:pre; }
.tok-kw{ color:#E9A23B; } .tok-str{ color:#8fd19e; } .tok-com{ color:#7c8299; font-style:italic; } .tok-fn{ color:#79c7d9; }

.tabs{ margin:1.8rem 0; max-width:760px; }
.tab-buttons{ display:flex; gap:0.4rem; flex-wrap:wrap; }
.tab-btn{ font-family:var(--font-display); font-size:0.75rem; letter-spacing:0.05em; text-transform:uppercase; padding:0.6rem 1.1rem; background:var(--bg-dim); border:1px solid var(--border); border-bottom:none; cursor:pointer; color:var(--text-dim); }
.tab-btn.active{ background:var(--charcoal-deep); color:#fff; border-color:var(--charcoal-deep); }
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }
.tab-panel .code-block{ margin-top:0; border-radius:0 6px 6px 6px; }

.accordion{ margin:1.8rem 0; max-width:760px; border:1px solid var(--border); }
.accordion-item + .accordion-item{ border-top:1px solid var(--border); }
.accordion-trigger{ width:100%; display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:1.1rem 1.3rem; background:var(--bg-dim); border:none; text-align:left; font-family:var(--font-body); font-size:1.02rem; font-weight:600; color:var(--text); cursor:pointer; }
.accordion-trigger .plus{ font-family:var(--font-display); font-size:1.2rem; color:var(--teal); transition:transform .25s ease; flex-shrink:0; }
.accordion-item.open .accordion-trigger .plus{ transform:rotate(45deg); }
.accordion-panel{ max-height:0; overflow:hidden; transition:max-height .3s ease; background:var(--bg); }
.accordion-item.open .accordion-panel{ max-height:600px; }
.accordion-panel-inner{ padding:0 1.3rem 1.2rem; font-size:0.98rem; color:var(--text-dim); }

.checklist{ margin:1.8rem 0; max-width:760px; background:var(--bg-dim); border:1px solid var(--border); padding:1.3rem 1.4rem; }
.checklist h4{ text-transform:none; font-size:1rem; margin-bottom:0.9rem; }
.checklist-item{ display:flex; align-items:flex-start; gap:0.7rem; padding:0.5rem 0; cursor:pointer; }
.checklist-item input{ margin-top:0.3rem; accent-color:var(--teal); width:16px; height:16px; flex-shrink:0; }
.checklist-item span{ font-size:0.98rem; }
.checklist-item.checked span{ color:var(--text-dim); text-decoration:line-through; }
.checklist-progress{ font-family:var(--font-display); font-size:0.72rem; letter-spacing:0.05em; text-transform:uppercase; color:var(--teal); margin-top:0.8rem; }

.quiz{ margin:1.8rem 0; max-width:760px; background:var(--bg-dim); border:1px solid var(--border); padding:1.5rem 1.6rem; }
.quiz h4{ text-transform:none; font-size:1.05rem; margin-bottom:1.2rem; }
.quiz-q{ margin-bottom:1.3rem; }
.quiz-q p{ font-weight:600; margin-bottom:0.6rem; font-size:0.98rem; }
.quiz-opts{ display:flex; flex-direction:column; gap:0.5rem; }
.quiz-opt{ display:flex; align-items:center; gap:0.6rem; font-size:0.94rem; cursor:pointer; }
.quiz-opt input{ accent-color:var(--teal); }
.quiz-submit{ margin-top:0.4rem; }
.quiz-result{ display:none; margin-top:1.2rem; padding:1rem 1.2rem; background:var(--bg); border-left:3px solid var(--teal); font-size:0.98rem; }
.quiz-result.show{ display:block; }

.compare-table-wrap{ overflow-x:auto; max-width:760px; }

/* 15) PÁGINAS DE CONFIANZA */
.page-hero{ background:var(--surface); color:var(--white); padding: clamp(3rem,6vw,4.5rem) 0; }
.page-hero h1{ font-size:clamp(2.2rem,4vw,3rem); margin-bottom:0.9rem; }
.page-hero p{ color:rgba(247,245,240,0.7); max-width:640px; font-size:1.05rem; }
.page-body{ padding: var(--section-pad) 0; }
.page-body .wrap{ max-width:820px; }
.page-body h2{ text-transform:none; font-size:1.4rem; margin:2rem 0 0.9rem; }
.page-body p, .page-body li{ font-size:1.03rem; color:var(--text-dim); margin-bottom:1rem; }
.page-body ul{ margin-left:1.4rem; }

.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:start; }
.contact-card{ background:var(--bg-dim); border:1px solid var(--border); padding:2rem; }
.contact-card h3{ text-transform:none; font-size:1.15rem; margin-bottom:0.6rem; }
.contact-card p{ font-size:0.95rem; color:var(--text-dim); margin-bottom:1.4rem; }

.about-grid{ display:grid; grid-template-columns:220px 1fr; gap:2.5rem; align-items:start; }
.about-avatar{ width:100%; aspect-ratio:1; border-radius:50%; background:linear-gradient(135deg,var(--teal),var(--charcoal)); display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-size:3rem; font-weight:900; color:#fff; }

/* 12) RESPONSIVE */
@media (max-width:1080px){
  .article-layout{ grid-template-columns:1fr; }
  .article-sidebar{ position:static; flex-direction:row; overflow-x:auto; }
  .sidebar-card{ min-width:260px; }
}
@media (max-width:980px){
  .hero-grid{ grid-template-columns:1fr; }
  .feature-grid{ grid-template-columns:1fr; }
  .feature-media{ order:-1; aspect-ratio:16/9; clip-path:none; }
  .col-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .cat-grid{ grid-template-columns:repeat(4,1fr); }
  .cat-card.c1{ grid-column:span 4; }
  .cat-card.c2{ grid-column:span 4; grid-row:span 1; }
  .cat-card.c2 .thumb{ aspect-ratio:21/9; }
  .cat-card.c3,.cat-card.c4,.cat-card.c5{ grid-column:span 2; }
  .related-grid{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .about-grid{ grid-template-columns:1fr; }
  .about-avatar{ width:140px; }
}
@media (max-width:980px){
  nav.main-nav, .head-right .date-str{ display:none; }
  .nav-toggle{ display:flex; }
}
@media (max-width:760px){
  .col-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .cat-grid{ grid-template-columns:repeat(2,1fr); }
  .cat-card.c1,.cat-card.c2{ grid-column:span 2; }
  .cat-card.c3,.cat-card.c4,.cat-card.c5{ grid-column:span 2; }
  .rank-item{ grid-template-columns:44px 1fr; }
  .rank-item .meta-wrap{ grid-column:2; }
  .dial{ display:none; }
  .pulse-svg{ height:80px; }
  .related-grid{ grid-template-columns:1fr; }
}