/* Skillgraph Labs — warm, natural, editorial theme.
   Paper palette, serif display (Fraunces) + Inter body, organic shapes. */
:root{
  --bg:#faf7f0;          /* warm paper */
  --bg2:#f1ebdf;         /* deeper sand */
  --panel:#fffdf8;       /* card surface */
  --dark:#23271f;        /* deep warm green-black */
  --ink:#262620;
  --muted:#6f6a5d;
  --line:#e7dfd0;
  --line2:#d8cfbd;
  --accent:#4f6f57;      /* sage / forest */
  --accent-ink:#3d5944;
  --terra:#bd6b48;       /* warm terracotta detail */
  --good:#3d7a51;
  --warn:#b5711a;
  --maxw:1140px;
  --r:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}

/* serif display */
h1,h2,.serif{font-family:"Fraunces","Georgia",serif;font-weight:500;letter-spacing:-.01em}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:40;background:rgba(250,247,240,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px}
.logo{width:28px;height:28px}
.navlinks{display:flex;gap:30px;font-size:15px}
.navlinks a{color:var(--muted);font-weight:500}
.navlinks a:hover,.navlinks a.active{color:var(--ink)}
@media(max-width:820px){.navlinks{gap:16px;font-size:13.5px}.brand span{display:none}}

/* ---------- buttons (pill) ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  background:var(--accent);color:#fff;border:1px solid var(--accent);cursor:pointer;transition:transform .15s,background .15s,box-shadow .2s}
.btn:hover{transform:translateY(-1px);background:var(--accent-ink);box-shadow:0 12px 28px rgba(79,111,87,.25)}
.btn.alt{background:transparent;color:var(--ink);border-color:var(--line2)}
.btn.alt:hover{background:#fff;box-shadow:none}
.btn.dark{background:var(--dark);border-color:var(--dark)}
.btn.dark:hover{background:#171a14}
.btn.ondark{background:#f3ead8;color:var(--dark);border-color:#f3ead8}
.btn.ondark:hover{background:#fff}

/* ---------- type ---------- */
h1{font-size:clamp(42px,6.2vw,80px);line-height:1.02;letter-spacing:-.02em}
h2{font-size:clamp(28px,3.6vw,46px);line-height:1.08}
h3{font-size:20px;font-weight:600;font-family:"Inter",sans-serif;letter-spacing:-.01em}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.lead{color:var(--muted);font-size:clamp(17px,1.5vw,21px);max-width:640px;line-height:1.55}
p{max-width:720px}

/* ---------- sections ---------- */
section{padding:108px 0}
section.alt{background:var(--bg2)}
section.dark{background:var(--dark);color:#f3efe3}
section.dark .lead{color:#bdc2b4}
section.dark .eyebrow{color:#a9c4af}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:1fr 1fr}
@media(max-width:860px){.g3,.g2{grid-template-columns:1fr}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:32px;transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 48px rgba(64,58,40,.10)}
.card .badge{width:46px;height:46px;border-radius:14px;background:#eef2ea;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:15.5px}

/* ---------- hero (full-bleed background photo) ---------- */
.hero{position:relative;overflow:hidden;color:#fff;
  display:flex;align-items:center;min-height:92vh;
  background-size:cover;background-position:center;background-attachment:fixed}
.hero:before{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(22,28,20,.74),rgba(22,28,20,.34) 60%,rgba(22,28,20,.18))}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero-copy{max-width:760px}
.hero .eyebrow{color:#d3e3d2}
.hero h1{margin-top:16px;color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.25)}
.hero .lead{margin-top:24px;color:#ece9dd;max-width:600px}
.hero .cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.pillrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:30px}
.hero .pill{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#f1efe6}
@media(max-width:600px){.hero{min-height:86vh;background-attachment:scroll}}
.pillrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}
.pill{font-size:13px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 15px}

/* ---------- feature list ---------- */
.feat{padding:28px 0;border-top:1px solid var(--line2)}
.feat:last-child{border-bottom:1px solid var(--line2)}
.feat h3{margin-bottom:5px;font-size:21px;font-family:"Fraunces",serif;font-weight:500}
.feat p{color:var(--muted);font-size:16px}

/* ---------- article ---------- */
.article{padding:88px 26px;max-width:786px;margin:0 auto}
.article h1{font-size:clamp(36px,5vw,60px)}
.article h2{margin:46px 0 12px;font-size:30px}
.article h3{margin:26px 0 6px;font-family:"Fraunces",serif;font-weight:500;font-size:21px}
.article p{margin-bottom:15px;color:#3a382f;font-size:17.5px}
.article ul{margin:0 0 18px 22px;color:#3a382f}
.article li{margin-bottom:7px}
.refbox{background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);padding:26px 30px;margin-top:24px}
.refbox h3{margin-bottom:10px}
.refbox ol{margin-left:20px;color:var(--muted);font-size:15px}
.refbox li{margin-bottom:8px}

/* ---------- footer ---------- */
footer{background:var(--dark);color:#a9ad9f;padding:58px 0;font-size:15px}
.frow{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
footer a{color:#d7dbcd}

/* ---------- mobile fixes ---------- */
html,body{max-width:100%;overflow-x:hidden}
img{max-width:100%;height:auto}
*{overflow-wrap:break-word;word-wrap:break-word}

@media(max-width:680px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  /* nav wraps: brand on top, links below */
  nav{height:auto;flex-wrap:wrap;gap:6px;padding:12px 0}
  .brand span{display:inline}
  .navlinks{width:100%;gap:14px;font-size:13.5px;justify-content:flex-start;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .navlinks a{white-space:nowrap}

  section{padding:64px 0}
  .article{padding:56px 18px}
  .refbox{padding:20px 18px}
  h1{font-size:clamp(32px,9vw,42px);line-height:1.06}
  h2{font-size:clamp(24px,6.5vw,32px)}
  .lead{font-size:17px}

  /* hero: size to content, no fixed parallax */
  .hero{min-height:auto;padding:110px 0 72px;background-attachment:scroll}
  .hero-copy{max-width:100%}
  .hero .cta{flex-direction:column;align-items:stretch}
  .hero .cta .btn{justify-content:center;width:100%}

  .card{padding:24px}
  .grid{gap:16px}
}