*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Arial,Helvetica,sans-serif;background:#07132b;color:#fff;line-height:1.75;overflow-x:hidden}
a{color:inherit}
img{max-width:100%}

/* ===== FINAL FIXED HEADER ===== */
header,.header{background:#020b1d;border-bottom:1px solid rgba(255,208,0,.12);position:sticky;top:0;z-index:999;box-shadow:0 4px 18px rgba(0,0,0,.22)}
header{padding:15px 30px}
.header-container,.nav{max-width:1180px;margin:auto;min-height:65px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.logo,.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-weight:800}
.logo img,.brand img{width:65px;height:65px;border-radius:50%;object-fit:cover;border:3px solid #ffd000;background:#fff;padding:3px}
.logo h2,.brand-name,.brand{font-size:24px;color:#fff;white-space:nowrap}
nav,.navlinks{display:flex;align-items:center;justify-content:flex-end;gap:22px;flex-wrap:wrap}
nav a,.navlinks a{color:#fff;text-decoration:none;font-weight:700;font-size:15px}
nav a:hover,.navlinks a:hover{color:#ffd000}
.navlinks{list-style:none}

/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,#07132b,#0a1f4f 55%,#062f52);padding:72px 20px 65px;text-align:center;border-bottom:1px solid rgba(255,208,0,.12)}
.hero-inner{max-width:1000px;margin:auto}
.badge,.kicker,.eyebrow{display:inline-block;color:#ffd000;font-size:12px;font-weight:800;letter-spacing:2px;margin-bottom:10px;text-transform:uppercase}
.breadcrumb{color:#a9b7c9;font-size:14px;margin-bottom:18px}
.breadcrumb a{color:#ffd000;text-decoration:none}
.hero h1{font-size:clamp(34px,5vw,52px);line-height:1.15;margin:12px 0 18px;color:#fff}
.hero h1 span{color:#ffd000}
.hero p{max-width:850px;margin:auto;color:#d7e4ff;font-size:18px;line-height:1.8}
.hero-meta{margin-top:18px;color:#9fb1c9;font-size:14px}
.hero-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{border:1px solid rgba(255,208,0,.35);background:rgba(255,208,0,.06);color:#fff;padding:6px 12px;border-radius:999px;font-size:13px}

/* ===== STANDARD ARTICLE ===== */
.article-wrap{max-width:1060px;margin:45px auto 60px;padding:0 20px}
.article-card,.article{background:#0f1d3b;border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:45px;box-shadow:0 15px 40px rgba(0,0,0,.25)}
.article-card>h1{display:none}
.article h1{font-size:34px;color:#ffd000;margin:0 0 20px;line-height:1.2}
.article-card h2,.article h2,.card h2{font-size:30px;color:#ffd000;margin:42px 0 16px;padding-bottom:10px;border-bottom:1px solid rgba(255,208,0,.20);line-height:1.3}
.article-card h3,.article h3,.card h3{font-size:22px;color:#fff;margin:28px 0 12px;line-height:1.4}
.article-card p,.article p,.card p{color:#d7e4ff;font-size:16px;line-height:1.9;margin-bottom:18px}
.article-card ul,.article-card ol,.article ul,.article ol,.card ul,.card ol{margin:10px 0 22px 25px;color:#d7e4ff}
.article-card li,.article li,.card li{margin:7px 0;line-height:1.7}
.article-card li::marker,.article li::marker,.card li::marker{color:#ffd000}
strong{color:#fff}
blockquote,.article blockquote{margin:20px 0;padding:18px 22px;border-left:4px solid #ffd000;background:rgba(255,208,0,.07);color:#dbe7f5;line-height:1.8;border-radius:0 8px 8px 0}
code{color:#ffd000;background:#07132b;padding:3px 7px;border-radius:5px}
pre{background:#020b1d;border:1px solid rgba(255,208,0,.15);border-radius:12px;padding:20px;overflow:auto;margin:20px 0;color:#dbeafe;line-height:1.6}
.inline-link{color:#ffd000!important;font-weight:700;text-decoration:none}
.inline-link:hover{text-decoration:underline}

/* ===== TABLES ===== */
.table-wrap{overflow-x:auto;margin:20px 0}
table{width:100%;border-collapse:collapse;min-width:600px}
th,td{border:1px solid rgba(255,255,255,.10);padding:13px;text-align:left}
th{background:#07132b;color:#ffd000}
td{color:#d7e4ff;background:#0a1b30}

/* ===== DATA ANALYTICS VS DATA SCIENCE ===== */
.card{background:#0f1d3b;border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:34px;margin-bottom:24px;box-shadow:0 15px 40px rgba(0,0,0,.20)}
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.mini-card,.compare-box,.tool,.path,.road-card,.flow span,.faq details{background:#07182c;border:1px solid rgba(255,208,0,.18);border-radius:15px;padding:20px}
.mini-card h3{color:#ffd000;margin:0 0 8px}
.compare{display:grid;grid-template-columns:1fr 70px 1fr;gap:16px;align-items:stretch;margin-top:22px}
.compare-box{padding:26px}
.compare-box.analytics{border-top:4px solid #24c6ff}
.compare-box.science{border-top:4px solid #ffd000}
.compare-box.analytics h3{color:#48d6ff}
.compare-box.science h3{color:#ffd000}
.vs{display:flex;align-items:center;justify-content:center;border-radius:50%;width:58px;height:58px;background:#ffd000;color:#071426;font-weight:900;align-self:center;justify-self:center}
.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:18px 0}
.flow span{padding:9px 12px;font-weight:700;font-size:13px}
.flow i{color:#ffd000;font-style:normal;font-weight:900}
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.tool{text-align:center}
.tool .icon{font-size:27px;margin-bottom:7px}
.tool h3{font-size:18px;margin:0 0 4px}
.tool p{font-size:13px;margin:0;color:#bcd0e7}
.skill-table{width:100%;border-collapse:collapse;margin-top:18px}
.skill-table th,.skill-table td{padding:13px 14px;border:1px solid rgba(255,255,255,.1);text-align:left}
.skill-table th{background:#132b49;color:#ffd000}
.skill-table td{background:#081a2e}
.roadmap{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
.road-card{position:relative;padding:18px 18px 18px 66px;min-height:85px}
.road-num{position:absolute;left:16px;top:17px;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#ffd000;color:#071426;font-weight:900}
.road-card strong{display:block;color:#fff}
.road-card small{color:#aecaeb}
.highlight{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.path{padding:23px}
.path h3{margin:0 0 13px;color:#ffd000}
.pathline{font-weight:700;color:#fff;font-size:15px;line-height:2.1}
.pathline span{color:#ffd000}
.faq details{margin:10px 0;padding:0 18px}
.faq summary{cursor:pointer;padding:15px 0;color:#fff;font-weight:800}
.faq details[open] summary{color:#ffd000}
.faq p{padding-bottom:15px;margin:0}

/* ===== PYTHON ARTICLE ===== */
main:not(.article-wrap){max-width:1050px;margin:42px auto 80px;padding:0 18px}
.article .hero-stats,.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat{background:rgba(11,29,52,.82);border:1px solid #214667;border-radius:18px;padding:22px}
.stat b{display:block;color:#ffd000;font-size:30px}
.stat span{color:#a9bad0;font-size:14px}
.quick-panel{margin:34px 0;padding:28px;background:linear-gradient(135deg,#0d2743,#0a1b30);border:1px solid #245176;border-radius:20px}
.panel-head h2{margin:0 0 5px;color:#fff;font-size:27px}
.panel-head p{color:#a9bad0;margin-bottom:20px}
.tool-card{background:#091a2e;border:1px solid #234767;border-radius:14px;padding:18px}
.tool-card b{color:#ffd000;font-size:12px}
.tool-card strong{display:block;font-size:20px;margin:5px 0}
.tool-card span{color:#a9bad0;font-size:13px}
.workflow{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:22px 5px;margin:18px 0 30px}
.flow-step{min-width:125px;text-align:center;background:#091a2e;border:1px solid #245176;border-radius:14px;padding:13px 10px}
.flow-step i{display:block;font-style:normal;color:#ffd000;font-weight:800;font-size:12px}
.flow-step b{display:block;color:#fff}
.flow-step span{font-size:11px;color:#a9bad0}
.workflow em{color:#ffd000;font-size:22px;font-style:normal}
.compare-grid{display:grid;grid-template-columns:1fr 70px 1fr;align-items:stretch;gap:12px;margin:20px 0 35px}
.compare-card{padding:25px;border-radius:18px;border:1px solid #245176;background:#091a2e}
.compare-card span{color:#ffd000;font-size:12px;font-weight:800;letter-spacing:1px}
.compare-card h3{font-size:24px;margin:7px 0}
.compare-card p{margin:0;color:#a9bad0}
.code-wrap{margin:20px 0;border:1px solid #214667;border-radius:14px;overflow:hidden;background:#061120}
.code-top{height:38px;background:#0d2743;display:flex;align-items:center;justify-content:space-between;padding:0 12px;color:#ffd000;font-size:11px;font-weight:800;letter-spacing:1px}
.code-top button{border:1px solid #365a79;background:transparent;color:#fff;border-radius:6px;padding:4px 10px;cursor:pointer}

/* ===== POWER BI / IMAGE CONTENT ===== */
.article-image{margin:30px 0 34px;border:1px solid rgba(255,208,0,.16);border-radius:15px;overflow:hidden;background:#061225;box-shadow:0 12px 30px rgba(0,0,0,.28)}
.article-image img{display:block;width:100%;max-height:520px;object-fit:cover}
.article-image figcaption{padding:11px 16px;color:#9fb1c9;font-size:13px;text-align:center;background:#061225}
.article-image.side-visual{width:39%;max-width:390px;margin:8px 0 28px}
.article-image.side-right{float:right;margin-left:34px}
.article-image.side-left{float:left;margin-right:34px}
.article-card:after,.article:after{content:"";display:block;clear:both}
.roadmap-visual{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:10px;align-items:stretch;background:linear-gradient(135deg,#061225,#0b2342);border:1px solid rgba(255,208,0,.22);border-radius:16px;padding:18px 12px;margin:24px 0 30px;overflow:hidden}
.roadmap-step{position:relative;min-width:0;min-height:150px;padding:14px 8px 12px;border:1px solid rgba(255,208,0,.20);border-radius:12px;background:linear-gradient(180deg,rgba(16,43,74,.95),rgba(6,18,37,.95));display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center}
.roadmap-step:not(:last-child)::after{content:"→";position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:#ffd000;font-size:20px;font-weight:800;z-index:3}
.roadmap-step .num{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#ffd000;color:#071426;font-weight:900;font-size:12px;margin-bottom:10px}
.roadmap-step .title{color:#fff;font-weight:800;font-size:12px;line-height:1.3}
.roadmap-step .sub{color:#9fb1c9;font-size:10px;line-height:1.4;margin-top:5px}

/* ===== CTA ===== */
.cta{max-width:1060px;margin:0 auto 65px;padding:35px;background:#0f1d3b;border:1px solid rgba(255,208,0,.25);border-radius:18px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{color:#ffd000;margin-bottom:8px}
.cta p{color:#cbd5e1;line-height:1.7;margin:0}
.cta a,.btn{background:#ffd000;color:#07132b;text-decoration:none;padding:13px 20px;border-radius:9px;font-weight:900;white-space:nowrap}
.cta a:hover,.btn:hover{background:#fff}

/* ===== FINAL AUTHOR — SAME VISUAL AS USER'S JPG ===== */
.author,.final-author{max-width:1335px;margin:0 auto 0;padding:0}
.author-box,.final-author-box{
  margin:0;
  padding:27px 20px 29px;
  min-height:146px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:linear-gradient(110deg,#1b2426,#0b203b);
  border:1px solid rgba(255,208,0,.30);
  border-radius:18px;
}
.author-box span,.final-author-box .author-label{display:block;color:#fff;font-size:20px;margin-bottom:0}
.author-box strong,.final-author-box .author-name{display:block;font-size:30px;line-height:1.25;color:#ffd000;font-weight:800}
.final-author-box .author-role{display:block;color:#fff;font-size:19px;line-height:1.5}
.author-badge{font-size:20px;color:#fff;margin-bottom:0}
.author p{margin:0;color:#fff}
.author strong{color:#ffd000}

/* ===== FOOTER ===== */
footer,.footer{background:#020b1d;border-top:1px solid rgba(255,208,0,.12);text-align:center;padding:22px 15px;color:#9bb4e8;font-size:18px}
footer strong,.footer strong{color:#fff}

/* ===== FIXED WHATSAPP ===== */
.whatsapp-btn,.wa{
  position:fixed;
  right:20px;
  bottom:20px;
  width:auto;
  min-width:190px;
  height:auto;
  padding:14px 20px;
  border-radius:14px;
  background:#25d366;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  font-size:16px;
  font-weight:800;
  box-shadow:0 8px 22px rgba(0,0,0,.35);
  z-index:9999
}
.whatsapp-btn:hover,.wa:hover{color:#fff;text-decoration:none;transform:translateY(-1px)}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .header-container,.nav{min-height:65px}
  nav,.navlinks{gap:14px}
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .roadmap{grid-template-columns:1fr}
  .highlight{grid-template-columns:1fr}
  .roadmap-visual{grid-template-columns:repeat(5,1fr)}
  .roadmap-step:not(:last-child)::after{display:none}
}
@media(max-width:768px){
  header{padding:12px 18px}
  .header-container,.nav{flex-direction:column;justify-content:center;padding:10px 0}
  .logo img,.brand img{width:55px;height:55px}
  .logo h2,.brand-name,.brand{font-size:20px}
  nav,.navlinks{justify-content:center;gap:12px;padding-bottom:5px}
  nav a,.navlinks a{font-size:13px}
  .hero{padding:52px 18px}
  .hero h1{font-size:38px}
  .hero p{font-size:16px}
  .article-wrap{padding:0 15px;margin-top:32px}
  .article-card,.article,.card{padding:25px 20px;border-radius:15px}
  .article-card h2,.article h2,.card h2{font-size:25px}
  .intro-grid,.compare,.compare-grid{grid-template-columns:1fr}
  .vs{margin:-3px auto}
  .tool-grid{grid-template-columns:1fr 1fr}
  .article-image.side-visual,.article-image.side-right,.article-image.side-left{float:none;width:100%;max-width:680px;margin:24px auto 30px}
  .roadmap-visual{grid-template-columns:repeat(2,1fr)}
  .cta{margin:0 15px 50px;padding:28px 22px;flex-direction:column;align-items:flex-start}
  .author,.final-author{margin:0 15px}
  .author-box,.final-author-box{min-height:130px;padding:24px 15px}
  .final-author-box .author-name{font-size:25px}
  .final-author-box .author-role{font-size:16px}
  footer,.footer{font-size:15px;padding:20px 15px}
  .whatsapp-btn,.wa{left:12px;right:12px;min-width:0;width:auto;text-align:center}
}
@media(max-width:480px){
  .tool-grid,.hero-stats{grid-template-columns:1fr}
  .roadmap-visual{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}