/* ===== PCB CLINIC BLOG - SHARED STYLES ===== */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#1e293b;background:#fff;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

/* CSS Custom Properties */
:root{
  --c-primary:#306CDE;
  --c-primary-dark:#1B2944;
  --c-primary-light:#e8eefb;
  --c-accent:#34BB62;
  --c-dark:#050E23;
  --c-gray-900:#1e293b;
  --c-gray-700:#334155;
  --c-gray-500:#64748b;
  --c-gray-300:#cbd5e1;
  --c-gray-100:#f1f5f9;
  --c-white:#ffffff;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);
  --radius:0.75rem;
  --max-w:1200px;
}
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes fadeInLeft{
  from{opacity:0;transform:translateX(-30px)}
  to{opacity:1;transform:translateX(0)}
}
@keyframes fadeInRight{
  from{opacity:0;transform:translateX(30px)}
  to{opacity:1;transform:translateX(0)}
}
@keyframes slideDown{
  from{opacity:0;transform:translateY(-20px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}
@keyframes pulse-glow{
  0%,100%{box-shadow:0 0 20px rgba(48,108,222,.15)}
  50%{box-shadow:0 0 40px rgba(48,108,222,.3)}
}
@keyframes shimmer{
  0%{background-position:-200% 0}
  100%{background-position:200% 0}
}
@keyframes gradientShift{
  0%{background-position:0% 50%}
  50%{background-position:100% 50%}
  100%{background-position:0% 50%}
}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-40px);transition:opacity .8s ease,transform .8s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(40px);transition:opacity .8s ease,transform .8s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}

/* Stagger delays */
.delay-1{transition-delay:.1s}
.delay-2{transition-delay:.2s}
.delay-3{transition-delay:.3s}
.delay-4{transition-delay:.4s}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--c-gray-300);box-shadow:var(--shadow-sm);animation:slideDown .5s ease}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;height:4rem;padding:.5rem 0}
.navbar__logo{font-size:1.25rem;font-weight:800;color:var(--c-dark)}
.navbar__links{display:flex;gap:1.5rem;align-items:center}
.navbar__links a{font-size:.875rem;font-weight:500;color:var(--c-gray-700);transition:color .3s ease,transform .2s ease;position:relative}
.navbar__links a:hover{color:var(--c-primary);transform:translateY(-1px)}
.navbar__links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--c-primary);transition:width .3s ease}
.navbar__links a:hover::after{width:100%}
.navbar__cta{font-size:.8125rem!important;padding:.5rem 1rem!important}
.navbar__cta::after{display:none!important}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.875rem 1.75rem;border-radius:.5rem;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:all .3s ease;text-align:center;justify-content:center;position:relative;overflow:hidden}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(48,108,222,.35)}
.btn--primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);transition:left .5s ease}
.btn--primary:hover::before{left:100%}
.navbar__toggle{display:none;background:none;border:none;cursor:pointer;padding:.5rem}
.navbar__toggle svg{width:24px;height:24px;color:var(--c-dark)}
@media(max-width:768px){
  .navbar__inner{height:auto;min-height:3.5rem}
  .navbar__logo img{height:36px!important;margin:4px!important}
  .navbar__links{position:fixed;top:3.5rem;left:0;right:0;background:var(--c-white);flex-direction:column;padding:1.5rem;gap:1rem;border-bottom:1px solid var(--c-gray-300);transform:translateY(-120%);transition:transform .3s;box-shadow:var(--shadow-lg)}
  .navbar__links.open{transform:translateY(0)}
  .navbar__toggle{display:block}
  .navbar__links a::after{display:none}
}

/* ===== ARTICLE HERO ===== */
.article-hero{position:relative;padding:0;min-height:420px;overflow:hidden;display:flex;align-items:flex-end}
.article-hero__bg{position:absolute;inset:0;z-index:0}
.article-hero__bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.3)}
.article-hero__overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(5,14,35,.95) 0%,rgba(5,14,35,.6) 40%,rgba(27,41,68,.3) 100%);z-index:1}
.article-hero__content{position:relative;z-index:2;padding:7rem 0 2.5rem;width:100%;animation:fadeInUp .8s ease}
.article-hero h1{font-size:clamp(1.75rem,4vw,2.75rem);font-weight:800;line-height:1.15;letter-spacing:-.01em;margin-bottom:1rem;max-width:800px;color:#fff}
.article-hero__meta{display:flex;gap:1.5rem;align-items:center;color:#8b9fc0;font-size:.875rem;flex-wrap:wrap}
.article-hero__tag{display:inline-flex;align-items:center;gap:.3rem;background:rgba(48,108,222,.3);border:1px solid rgba(48,108,222,.5);color:#7db4ff;padding:.25rem .75rem;border-radius:2rem;font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;backdrop-filter:blur(4px)}
.breadcrumb{padding:.5rem 0 1rem;font-size:.8125rem;color:rgba(255,255,255,.5)}
.breadcrumb a{color:rgba(255,255,255,.7);text-decoration:underline;transition:color .2s}
.breadcrumb a:hover{color:#fff}

/* ===== ARTICLE BODY ===== */
.article-body{padding:3rem 0 4rem}
.article-content{max-width:780px;margin:0 auto}
.article-content h2{font-size:1.5rem;font-weight:700;color:var(--c-dark);margin:2.5rem 0 1rem;line-height:1.25;position:relative;padding-left:1rem;border-left:3px solid var(--c-primary)}
.article-content h3{font-size:1.2rem;font-weight:600;color:var(--c-gray-900);margin:2rem 0 .75rem}
.article-content p{color:var(--c-gray-700);line-height:1.8;margin-bottom:1.25rem;font-size:1.0125rem}
.article-content ul,.article-content ol{margin:1rem 0 1.5rem 1.5rem;color:var(--c-gray-700)}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:.6rem;line-height:1.7;font-size:1.0125rem}
.article-content strong{color:var(--c-gray-900)}
.article-content a{color:var(--c-primary);text-decoration:underline;transition:color .2s}
.article-content a:hover{color:var(--c-primary-dark)}

/* Blockquote */
.article-content blockquote{border-left:4px solid var(--c-primary);background:linear-gradient(135deg,var(--c-primary-light),#f0f4ff);padding:1.5rem 1.75rem;margin:2rem 0;border-radius:0 var(--radius) var(--radius) 0;position:relative}
.article-content blockquote::before{content:'\201C';position:absolute;top:-.25rem;left:.75rem;font-size:3rem;color:var(--c-primary);opacity:.3;font-family:Georgia,serif}
.article-content blockquote p{margin-bottom:0;color:var(--c-primary-dark);font-weight:500;font-style:italic}

/* Highlight box */
.highlight-box{background:var(--c-gray-100);border:1px solid var(--c-gray-300);border-radius:var(--radius);padding:1.5rem;margin:1.5rem 0;transition:transform .3s ease,box-shadow .3s ease}
.highlight-box:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.highlight-box h4{font-size:1.05rem;color:var(--c-dark);margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}

/* CTA Box */
.cta-box{background:linear-gradient(135deg,var(--c-dark),#1B2944,#1e3a6e);background-size:200% 200%;animation:gradientShift 6s ease infinite;color:#fff;border-radius:var(--radius);padding:2.5rem;margin:2.5rem 0;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(48,108,222,.15) 0%,transparent 70%);animation:float 6s ease infinite}
.cta-box h3{color:#fff;margin-bottom:.75rem;font-size:1.3rem;position:relative;z-index:1}
.cta-box p{color:#8b9fc0;margin-bottom:1.25rem;position:relative;z-index:1}
.cta-box .btn{position:relative;z-index:1}

/* Inline image */
.article-img{margin:2rem 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);transition:transform .4s ease}
.article-img:hover{transform:scale(1.01)}
.article-img img{width:100%;height:auto;display:block;transition:transform .6s ease}
.article-img:hover img{transform:scale(1.03)}
.article-img figcaption{background:var(--c-gray-100);padding:.75rem 1rem;font-size:.8125rem;color:var(--c-gray-500);text-align:center;font-style:italic}

/* Two-column image */
.article-img-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:2rem 0}
.article-img-row .article-img{margin:0}
@media(max-width:600px){.article-img-row{grid-template-columns:1fr}}

/* Info card */
.info-card{display:grid;grid-template-columns:60px 1fr;gap:1rem;background:#fff;border:1px solid var(--c-gray-300);border-radius:var(--radius);padding:1.25rem;margin:.75rem 0;transition:all .3s ease}
.info-card:hover{border-color:var(--c-primary);box-shadow:0 4px 20px rgba(48,108,222,.1);transform:translateX(5px)}
.info-card__icon{width:50px;height:50px;border-radius:.625rem;display:flex;align-items:center;justify-content:center;font-size:1.5rem;background:var(--c-primary-light);color:var(--c-primary);flex-shrink:0}
.info-card__text h4{font-size:.95rem;color:var(--c-dark);margin-bottom:.25rem}
.info-card__text p{font-size:.875rem;color:var(--c-gray-500);margin:0;line-height:1.5}

/* Case study box */
.case-study{background:linear-gradient(135deg,#f8faff,#f1f5f9);border:1px solid var(--c-gray-300);border-radius:var(--radius);padding:1.75rem;margin:2rem 0;position:relative;overflow:hidden}
.case-study::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(to bottom,var(--c-primary),var(--c-accent))}
.case-study__label{display:inline-flex;align-items:center;gap:.4rem;background:var(--c-primary);color:#fff;padding:.2rem .7rem;border-radius:2rem;font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.75rem}
.case-study h4{font-size:1.1rem;color:var(--c-dark);margin-bottom:.75rem}
.case-study p{color:var(--c-gray-700);font-size:.95rem;margin-bottom:.5rem;line-height:1.7}
.case-study p:last-child{margin-bottom:0}

/* ===== BLOG INDEX ===== */
.blog-hero{padding:7rem 0 3rem;background:linear-gradient(135deg,var(--c-dark) 0%,#1B2944 50%,#1e3a6e 100%);color:#fff;position:relative;overflow:hidden}
.blog-hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat}
.blog-hero h1{font-size:clamp(2rem,5vw,3rem);font-weight:800;margin-bottom:.75rem;animation:fadeInUp .7s ease}
.blog-hero p{color:#8b9fc0;font-size:1.125rem;max-width:600px;animation:fadeInUp .7s ease .1s both}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:2rem;padding:3rem 0 4rem}
@media(max-width:480px){.blog-grid{grid-template-columns:1fr}}

/* Blog card */
.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--c-gray-300);transition:all .4s ease;position:relative}
.blog-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl);border-color:var(--c-primary)}
.blog-card__img{height:200px;overflow:hidden;position:relative}
.blog-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.blog-card:hover .blog-card__img img{transform:scale(1.08)}
.blog-card__img::after{content:'';position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(to top,rgba(0,0,0,.3),transparent)}
.blog-card__badge{position:absolute;top:.75rem;left:.75rem;z-index:2;display:inline-flex;padding:.2rem .6rem;border-radius:2rem;font-size:.7rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;backdrop-filter:blur(8px)}
.blog-card__badge--guide{background:rgba(48,108,222,.85);color:#fff}
.blog-card__badge--case{background:rgba(52,187,98,.85);color:#fff}
.blog-card__badge--tech{background:rgba(168,85,247,.85);color:#fff}
.blog-card__badge--exp{background:rgba(245,158,11,.85);color:#fff}
.blog-card__body{padding:1.25rem}
.blog-card__date{font-size:.75rem;color:var(--c-gray-500);margin-bottom:.5rem;display:flex;align-items:center;gap:.35rem}
.blog-card__title{font-size:1.1rem;font-weight:700;color:var(--c-dark);line-height:1.3;margin-bottom:.5rem;transition:color .2s}
.blog-card:hover .blog-card__title{color:var(--c-primary)}
.blog-card__excerpt{font-size:.875rem;color:var(--c-gray-500);line-height:1.6;margin-bottom:1rem}
.blog-card__link{display:inline-flex;align-items:center;gap:.35rem;font-size:.8125rem;font-weight:600;color:var(--c-primary);transition:gap .3s ease}
.blog-card__link:hover{gap:.6rem}
.blog-card__link svg{width:16px;height:16px;transition:transform .3s ease}
.blog-card__link:hover svg{transform:translateX(3px)}

/* Scheduled badge */
.blog-card--scheduled{opacity:.6;pointer-events:none;position:relative}
.blog-card--scheduled::after{content:'Pr\00F3ximamente';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(5,14,35,.85);color:#fff;padding:.5rem 1.25rem;border-radius:2rem;font-size:.8125rem;font-weight:600;z-index:5;backdrop-filter:blur(4px)}

/* ===== FOOTER ===== */
.footer{background:var(--c-gray-100);padding:2rem 0;border-top:1px solid var(--c-gray-300)}
.footer__inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.footer__links{display:flex;gap:1.25rem;flex-wrap:wrap}
.footer__links a{font-size:.875rem;color:var(--c-gray-500);transition:color .3s ease}
.footer__links a:hover{color:var(--c-primary)}
.footer__legal{text-align:center;font-size:.75rem;color:var(--c-gray-500);margin-top:1rem;padding-top:1rem;border-top:1px solid var(--c-gray-300)}
@media(max-width:480px){
  .article-hero{min-height:320px}
  .article-hero__content{padding:5.5rem 0 2rem}
  .footer__inner{flex-direction:column;text-align:center}
  .footer__links{justify-content:center}
  .info-card{grid-template-columns:1fr}
}
</style>