@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@600;700;800&display=swap");

/* ===== 1. COLOURS (change here only) ===== */
:root{
  --bg:#F4F6FB;          /* page background, light and plain */
  --white:#FFFFFF;
  --tint:#EAEEFB;        /* soft indigo tint for alternate sections */
  --ink:#141B34;         /* main text */
  --muted:#51597A;       /* secondary text */
  --line:#DDE2F0;
  --indigo:#3B3FD9;      /* primary */
  --indigo-dark:#2A2DA8;
  --amber:#F5A524;       /* accent */
  --amber-soft:#FFF3DC;
  --radius:16px;
  --shadow:0 4px 14px rgba(20,27,52,.07);
}
/* ===== 2. BASE ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 "Inter",system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3{font-family:"Plus Jakarta Sans","Inter",system-ui,sans-serif;color:var(--ink);line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(2.3rem,5.5vw,3.8rem);font-weight:800;letter-spacing:-.025em}
h2{font-size:clamp(1.7rem,3.6vw,2.3rem);font-weight:800;letter-spacing:-.02em}
h3{font-size:1.1rem;font-weight:700}
.sub{margin-top:44px;color:var(--indigo)}
p{margin:0 0 1em;max-width:70ch}
a{color:var(--indigo)}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
section{padding:72px 0}
section:nth-of-type(odd){background:var(--white)}
.code-tag{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--indigo-dark);background:var(--tint);padding:4px 12px;border-radius:999px;margin-bottom:14px}
.accent{color:var(--indigo)}
/* ===== 3. NAV ===== */
nav.top{background:var(--white);padding:14px 0;position:sticky;top:0;z-index:20}
nav.top .wrap{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.brand{font-family:"Plus Jakarta Sans",sans-serif;font-weight:800;font-size:1.1rem}
.brand span{color:var(--amber)}
nav.top ul{list-style:none;margin:0;padding:0;display:flex;gap:6px;flex-wrap:wrap;font-size:.9rem}
nav.top a{display:block;color:var(--muted);text-decoration:none;font-weight:600;padding:6px 12px;border-radius:999px}
nav.top a:hover{background:var(--tint);color:var(--indigo-dark)}
/* ===== 4. HERO (centered) ===== */
.hero{padding:80px 0 90px;text-align:center;background:var(--tint)}
.hero p{margin-left:auto;margin-right:auto}
.hero .code-tag{background:var(--white)}
.lead{font-size:1.18rem;color:var(--muted)}
.btn{display:inline-block;background:var(--indigo);color:#fff;font-weight:700;padding:13px 28px;border-radius:999px;text-decoration:none;box-shadow:var(--shadow)}
.btn:hover{background:var(--indigo-dark)}
.btn.ghost{background:var(--white);color:var(--indigo-dark);margin-left:10px}
.btn.ghost:hover{background:var(--amber-soft)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-top:48px;text-align:left}
.stat{background:var(--white);border-radius:var(--radius);padding:18px 20px;color:var(--muted);font-size:.95rem;box-shadow:var(--shadow)}
.stat b{display:block;font-family:"Plus Jakarta Sans",sans-serif;font-size:1.05rem;color:var(--ink)}
/* ===== 5. CARDS ===== */
.grid,.two{display:grid;gap:18px;margin-top:24px}
.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-bottom:4px solid transparent;transition:border-color .2s}
section:nth-of-type(odd) .card{background:var(--bg)}
.card:hover{border-bottom-color:var(--amber)}
.card p{margin:0;font-size:.96rem;color:var(--muted)}
.tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--indigo-dark);background:var(--tint);padding:3px 11px;border-radius:999px;margin-bottom:12px}
.callout{background:var(--amber-soft);border-radius:var(--radius);padding:18px 24px;margin:26px 0;max-width:74ch}
.callout p{margin:0}
.essay{background:var(--white);border-radius:var(--radius);padding:30px 34px;margin-top:20px;box-shadow:var(--shadow);border-left:6px solid var(--indigo)}
.essay p{max-width:none;color:var(--muted)}
.essay p:last-child{margin-bottom:0}
/* ===== 6. PIPELINE + STEPS ===== */
ol.pipe{list-style:none;counter-reset:p;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;padding:0;margin:26px 0}
ol.pipe li{counter-increment:p;background:var(--white);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
section:nth-of-type(odd) ol.pipe li{background:var(--bg)}
ol.pipe li::before{content:counter(p);display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--indigo);color:#fff;font-weight:700;font-size:.85rem;margin-bottom:10px}
ol.pipe b{display:block;font-family:"Plus Jakarta Sans",sans-serif;font-size:1rem}
ol.pipe span{font-size:.93rem;color:var(--muted)}
ol.steps{list-style:none;counter-reset:s;padding:0;margin:26px 0 0;display:grid;gap:14px}
ol.steps li{counter-increment:s;display:grid;grid-template-columns:48px 1fr;gap:18px;background:var(--white);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
section:nth-of-type(odd) ol.steps li{background:var(--bg)}
ol.steps li::before{content:counter(s);width:42px;height:42px;border-radius:12px;background:var(--amber);color:var(--ink);font-weight:800;display:grid;place-items:center}
ol.steps p{margin:0;color:var(--muted)}
ol.steps h3{margin-bottom:.3em}
/* ===== 7. TABLE, CODE, DL, FAQ ===== */
.scroll{overflow-x:auto;margin-top:24px;border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:.95rem}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--indigo);color:#fff;font-size:.85rem;font-weight:700}
td:first-child{color:var(--indigo-dark);font-weight:700}
td{color:var(--muted)}
tr:last-child td{border-bottom:0}
tbody tr:nth-child(even) td{background:var(--bg)}
pre.code{background:#141B34;border-radius:var(--radius);padding:22px;overflow-x:auto;font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.88rem;color:#DDE4FF;margin:20px 0;border-top:5px solid var(--amber)}
dl{display:grid;grid-template-columns:minmax(130px,210px) 1fr;gap:0;margin:22px 0 0;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
section:nth-of-type(odd) dl{background:var(--bg)}
dt,dd{padding:13px 20px;border-bottom:1px solid var(--line);margin:0}
dt{font-weight:700;color:var(--indigo-dark)}
dd{color:var(--muted)}
dt:last-of-type,dd:last-of-type{border-bottom:0}
@media(max-width:560px){dl{grid-template-columns:1fr}dt{border-bottom:0;padding-bottom:0}.btn.ghost{margin:12px 0 0}.essay{padding:22px}ol.steps li{grid-template-columns:1fr}}
details{background:var(--white);border-radius:var(--radius);padding:16px 22px;margin-bottom:12px;box-shadow:var(--shadow)}
section:nth-of-type(odd) details{background:var(--bg)}
details[open]{border-left:5px solid var(--amber)}
summary{cursor:pointer;font-weight:700}
details p{margin:12px 0 0;color:var(--muted)}
/* ===== 8. FOOTER ===== */
footer{background:var(--ink);color:#C9D0EA;padding:30px 0 44px;text-align:center;font-size:.88rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}