:root{
  --cream:#FFF8F0;
  --eggshell:#F0EAD6;
  --coral:#FC7E7D;
  --peach:#FF9A8B;
  --pastel-blue:#A7C7E7;
  --sky:#12BEE9;
  --deep-aqua:#0B99C1;
  --ink:#16323D;
  --ink-soft:#5B7480;
  --surface:#FFFFFF;
  --line:rgba(22,50,61,.11);
  --grad:linear-gradient(90deg,#FF8274 0%,#FC7E7E 26%,#C78FAA 40%,#A7C7E7 50%,#33C7EF 70%,#25E8FB 100%);
  --grad-soft:linear-gradient(120deg,rgba(252,126,125,.12),rgba(18,190,233,.12));
  --shadow:0 22px 55px -26px rgba(22,50,61,.30);
  --shadow-sm:0 10px 26px -14px rgba(22,50,61,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--cream);color:var(--ink);font-family:'Poppins',sans-serif;font-weight:400;line-height:1.7;-webkit-font-smoothing:antialiased;}
img{display:block;max-width:100%;}
a{color:inherit;}
a:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:8px;}
.wrap{width:min(1140px,calc(100% - 44px));margin:0 auto;}
.reading-wrap{width:min(760px,calc(100% - 44px));margin:0 auto;}
h1,h2,h3{margin:0;font-family:'DM Serif Display',serif;font-weight:400;line-height:1.12;letter-spacing:-.005em;}
p{margin-top:0;}
.eyebrow{margin:0 0 14px;color:var(--deep-aqua);font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;}
.grad-text{background:var(--grad);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent;font-style:italic;}
.nav{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(255,248,240,.92);backdrop-filter:blur(12px);}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:18px;width:min(1140px,calc(100% - 44px));min-height:66px;margin:0 auto;}
.nav-logo img{height:34px;width:auto;}
.nav-links{display:flex;align-items:center;gap:23px;color:var(--ink-soft);font-size:.86rem;font-weight:500;}
.nav-links a{text-decoration:none;}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 22px;border:0;border-radius:100px;font-family:'Poppins',sans-serif;font-size:.88rem;font-weight:600;text-decoration:none;white-space:nowrap;cursor:pointer;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 26px -12px rgba(252,126,125,.55);transition:transform .2s,box-shadow .2s;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px -12px rgba(18,190,233,.5);}
.btn-ghost{border:1.5px solid var(--line);background:transparent;color:var(--ink);}
.btn-ghost:hover{border-color:var(--sky);color:var(--deep-aqua);}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding-top:24px;color:var(--ink-soft);font-size:.78rem;}
.crumbs a{text-decoration:none;}
.crumbs a:hover{color:var(--deep-aqua);}
.resource-hero{position:relative;overflow:hidden;padding:76px 0 70px;}
.resource-hero::before,.resource-hero::after{content:"";position:absolute;border-radius:50%;filter:blur(85px);pointer-events:none;}
.resource-hero::before{width:390px;height:390px;left:-170px;top:-180px;background:rgba(252,126,125,.34);}
.resource-hero::after{width:420px;height:420px;right:-190px;top:-150px;background:rgba(18,190,233,.25);}
.resource-hero-inner{position:relative;z-index:1;max-width:850px;}
.resource-hero h1{font-size:clamp(2.35rem,6vw,4.5rem);}
.resource-hero .lead{max-width:700px;margin:22px 0 0;color:var(--ink-soft);font-size:clamp(1.02rem,2vw,1.18rem);}
.topic-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.topic-row span{padding:7px 13px;border:1px solid var(--line);border-radius:100px;background:rgba(255,255,255,.58);color:var(--ink-soft);font-size:.77rem;font-weight:500;}
.resource-section{padding:76px 0;background:var(--surface);}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:32px;}
.section-head h2{font-size:clamp(1.8rem,4vw,2.7rem);}
.section-head p{max-width:620px;margin:13px 0 0;color:var(--ink-soft);}
.post-card{display:grid;grid-template-columns:minmax(280px,.82fr) minmax(0,1.18fr);overflow:hidden;border:1px solid var(--line);border-radius:26px;background:var(--cream);box-shadow:var(--shadow);}
.post-card-media{min-height:390px;overflow:hidden;}
.post-card-media img{width:100%;height:100%;object-fit:cover;}
.post-card-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:clamp(28px,5vw,52px);}
.post-meta{color:var(--deep-aqua);font-size:.72rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;}
.post-card h2{margin:14px 0 13px;font-size:clamp(1.65rem,3.5vw,2.45rem);}
.post-card p{margin:0 0 24px;color:var(--ink-soft);}
.source-section{padding:70px 0;}
.source-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;padding:clamp(26px,5vw,44px);border-radius:26px;background:var(--ink);color:#fff;box-shadow:var(--shadow);}
.source-card h2{font-size:clamp(1.55rem,3vw,2.2rem);}
.source-card p{max-width:650px;margin:12px 0 0;color:rgba(255,255,255,.67);font-size:.9rem;}
.source-control{min-width:260px;padding:18px;border-radius:18px;background:#fff;}
.source-control small{display:block;margin-top:10px;color:var(--ink-soft);font-size:.67rem;line-height:1.45;}
.article-hero{padding:48px 0 52px;}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:clamp(34px,6vw,72px);align-items:center;}
.article-hero h1{font-size:clamp(2.45rem,5.2vw,4.15rem);}
.article-deck{margin:20px 0 0;color:var(--ink-soft);font-size:clamp(1rem,2vw,1.16rem);}
.byline{display:flex;flex-wrap:wrap;gap:7px 14px;margin-top:24px;color:var(--ink-soft);font-size:.76rem;}
.hero-photo{overflow:hidden;border:6px solid transparent;border-radius:30px;background:var(--grad);box-shadow:var(--shadow);}
.hero-photo img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:24px;}
.article-body{padding:68px 0;background:var(--surface);}
.article-body h2{margin:54px 0 16px;font-size:clamp(1.7rem,3.6vw,2.4rem);scroll-margin-top:90px;}
.article-body h2:first-child{margin-top:0;}
.article-body h3{margin:34px 0 12px;font-size:1.35rem;}
.article-body p,.article-body li{color:#34505C;font-size:1rem;}
.article-body a{color:var(--deep-aqua);font-weight:600;}
.article-body strong{color:var(--ink);}
.intro{font-size:1.1rem!important;}
.toc{margin:32px 0 48px;padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--cream);}
.toc strong{display:block;margin-bottom:11px;}
.toc ol{display:grid;gap:7px;margin:0;padding-left:21px;}
.toc a{text-decoration:none;}
.phrase{margin:22px 0;padding:24px;border-left:4px solid var(--accent,var(--coral));border-radius:0 18px 18px 0;background:var(--cream);}
.phrase h3{margin:0 0 8px;font-family:'Poppins',sans-serif;font-size:1.08rem;font-weight:700;}
.phrase .meaning{margin:0 0 13px;color:var(--ink-soft);font-size:.86rem;}
.phrase .example{margin:0;padding:14px 16px;border-radius:12px;background:#fff;color:var(--ink);font-size:.9rem;}
.phrase .example::before{content:"Ejemplo";display:block;margin-bottom:5px;color:var(--deep-aqua);font-size:.65rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;}
.note{margin:34px 0;padding:25px;border-radius:20px;background:var(--grad-soft);}
.note h3{margin:0 0 10px;}
.note p:last-child{margin-bottom:0;}
.mistakes{display:grid;gap:12px;margin:24px 0;}
.mistake{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:18px;border:1px solid var(--line);border-radius:16px;}
.mistake span{font-size:.88rem;}
.mistake .avoid{color:#A54848;text-decoration:line-through;}
.mistake .use{color:#087B5A;font-weight:600;}
.practice-list{display:grid;gap:12px;padding:0;counter-reset:practice;list-style:none;}
.practice-list li{position:relative;padding:18px 20px 18px 58px;border-radius:16px;background:var(--cream);}
.practice-list li::before{counter-increment:practice;content:counter(practice);position:absolute;left:16px;top:16px;display:grid;width:29px;height:29px;place-items:center;border-radius:50%;background:var(--grad);color:#fff;font-size:.76rem;font-weight:700;}
.article-cta{margin-top:54px;padding:clamp(28px,5vw,44px);border-radius:26px;background:var(--ink);color:#fff;}
.article-cta h2{margin:0 0 12px;color:#fff;}
.article-cta p{color:rgba(255,255,255,.68);}
.article-source{margin-top:24px;padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--cream);}
.article-source h3{margin:0 0 7px;}
.article-source p{font-size:.88rem;}
.article-source [google-add-preferred-source-btn]{margin-top:17px;}
.next-link{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);font-size:.88rem;}
footer{padding:36px 0;border-top:1px solid var(--line);text-align:center;}
footer img{height:32px;width:auto;margin:0 auto 13px;}
.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;margin-bottom:9px;color:var(--ink-soft);font-size:.78rem;}
.footer-links a{text-decoration:none;}
footer p{margin:0;color:var(--ink-soft);font-size:.77rem;}
@media(max-width:900px){
  .nav-links{display:none;}
  .post-card,.article-hero-grid{grid-template-columns:1fr;}
  .post-card-media{min-height:320px;}
  .article-hero-grid{gap:34px;}
  .hero-photo{max-width:520px;}
  .source-card{grid-template-columns:1fr;}
  .source-control{min-width:0;}
}
@media(max-width:600px){
  .wrap,.reading-wrap,.nav-in{width:min(100% - 28px,1140px);}
  .nav-in{min-height:62px;}
  .nav .btn{padding:9px 15px;font-size:.76rem;}
  .nav-logo img{height:29px;}
  .resource-hero{padding:56px 0;}
  .resource-section,.source-section,.article-body{padding:54px 0;}
  .post-card-media{min-height:240px;}
  .article-hero{padding-top:36px;}
  .hero-photo img{aspect-ratio:16/11;}
  .mistake{grid-template-columns:1fr;gap:5px;}
  .next-link{align-items:flex-start;flex-direction:column;}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto;}.btn-primary:hover{transform:none;}}