/* ============================================================
   Devil's Advocates Consulting Group — single-page site
   Own identity: ink + oxblood, editorial serif.
   ============================================================ */

:root{
  --ink:#16171b;
  --ink-soft:#23252b;
  --oxblood:#7c2230;
  --oxblood-deep:#651a26;
  --cream:#f6f3ee;
  --cream-2:#ece6dc;
  --paper:#ffffff;
  --text:#26282d;
  --muted:#6c6760;
  --line:#e2dbd0;
  --line-dark:rgba(255,255,255,.14);

  --h1:clamp(2.4rem,5.2vw,3.7rem);
  --h2:clamp(1.7rem,3vw,2.25rem);
  --h3:1.2rem;
  --body:1.06rem;
  --small:0.95rem;
  --eyebrow:0.76rem;

  --maxw:1080px;
  --narrow:720px;
  --radius:3px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',system-ui,sans-serif;
  font-size:var(--body);line-height:1.7;color:var(--text);
  background:var(--cream);-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Playfair Display',Georgia,serif;font-weight:600;line-height:1.15;color:var(--ink);}
h1{font-size:var(--h1);letter-spacing:-0.01em;}
h2{font-size:var(--h2);}
h3{font-size:var(--h3);font-weight:700;}
p{color:var(--muted);}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.25rem,5vw,2.5rem);}
.eyebrow{font-size:var(--eyebrow);font-weight:600;letter-spacing:0.22em;text-transform:uppercase;color:var(--oxblood);}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(22,23,27,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-dark);}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;}
.brand{font-family:'Playfair Display',serif;font-weight:700;font-size:1.25rem;color:var(--cream);letter-spacing:.01em;}
.brand .amp{color:var(--oxblood);}
nav ul{display:flex;gap:1.9rem;list-style:none;align-items:center;}
nav ul a{font-size:var(--small);font-weight:500;color:rgba(246,243,238,.82);padding:6px 0;position:relative;transition:color .2s;}
nav ul a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--oxblood);transition:width .25s;}
nav ul a:hover{color:var(--cream);}
nav ul a:hover::after{width:100%;}
.nav-cta{background:var(--oxblood);color:#fff!important;padding:9px 18px;border-radius:var(--radius);}
.nav-cta::after{display:none;}
.nav-cta:hover{background:var(--oxblood-deep);}
.menu-btn{display:none;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--cream);}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:13px 27px;border-radius:var(--radius);font-weight:500;font-size:var(--small);transition:background .2s,border-color .2s;}
.btn-ox{background:var(--oxblood);color:#fff;}
.btn-ox:hover{background:var(--oxblood-deep);}
.btn-ghost{border:1px solid rgba(246,243,238,.4);color:var(--cream);}
.btn-ghost:hover{border-color:var(--cream);}

/* ---------- Hero (dark ink) ---------- */
.hero{background:var(--ink);color:var(--cream);}
.hero .wrap{padding-top:clamp(4rem,9vw,6.5rem);padding-bottom:clamp(4rem,9vw,6.5rem);}
.hero h1{color:var(--cream);max-width:18ch;margin-top:1rem;}
.hero .lead{color:rgba(246,243,238,.82);max-width:56ch;margin-top:1.3rem;font-size:1.15rem;}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem;}

/* definition card */
.define{margin-top:2.6rem;border-left:3px solid var(--oxblood);padding:.2rem 0 .2rem 1.5rem;max-width:60ch;}
.define .term{font-family:'Playfair Display',serif;font-size:1.5rem;color:var(--cream);}
.define .term .pos{font-style:italic;color:rgba(246,243,238,.55);font-size:1.1rem;margin-left:.5rem;}
.define p{color:rgba(246,243,238,.8);margin-top:.7rem;font-size:1.02rem;}
.define .hist{color:rgba(246,243,238,.55);font-size:.92rem;font-style:italic;margin-top:.7rem;}

/* ---------- Sections ---------- */
section{padding:clamp(3.5rem,7vw,5.5rem) 0;}
.section-head{max-width:60ch;margin-bottom:2.6rem;}
.section-head .eyebrow{display:block;margin-bottom:.7rem;}
.section-head p{margin-top:.9rem;font-size:1.08rem;}

/* ---------- Services ---------- */
.services{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line);}
.service{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.7rem 1.8rem;background:var(--paper);}
.service .num{font-family:'Playfair Display',serif;font-size:.95rem;color:var(--oxblood);}
.service h3{margin:.5rem 0 .5rem;}
.service p{font-size:var(--small);}

/* ---------- Industries ---------- */
.industries{background:var(--ink);color:var(--cream);}
.industries h2,.industries .section-head .eyebrow{color:var(--cream);}
.industries .section-head .eyebrow{color:var(--oxblood);}
.industries .section-head p{color:rgba(246,243,238,.78);}
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;}
.ind{border:1px solid var(--line-dark);border-radius:var(--radius);padding:1.6rem 1.4rem;}
.ind .k{font-family:'Playfair Display',serif;font-size:1.3rem;color:var(--cream);}
.ind .k span{color:var(--oxblood);}
.ind p{color:rgba(246,243,238,.7);font-size:var(--small);margin-top:.5rem;}

/* ---------- About / Principal ---------- */
.about .grid{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:start;}
.about .who{font-family:'Playfair Display',serif;font-size:1.6rem;color:var(--ink);}
.about .role{color:var(--oxblood);font-weight:600;font-size:var(--small);margin-top:.3rem;}
.about .meta{margin-top:1.2rem;font-size:var(--small);color:var(--muted);}
.about .meta a{color:var(--oxblood);border-bottom:1px solid var(--oxblood);}
.about p + p{margin-top:1rem;}

/* ---------- Contact ---------- */
.contact{background:var(--cream-2);text-align:center;}
.contact h2{margin:.7rem auto 1rem;}
.contact .lines{font-size:1.08rem;color:var(--text);line-height:2;}
.contact .lines a{color:var(--oxblood);border-bottom:1px solid var(--oxblood);}
.contact .addr{color:var(--muted);font-size:var(--small);margin-top:1.2rem;line-height:1.6;}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:rgba(246,243,238,.6);padding:2.2rem 0;}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;font-size:.85rem;}
.foot .brand{font-size:1.05rem;}

/* ---------- Responsive ---------- */
@media(max-width:860px){
  .services{grid-template-columns:1fr;}
  .ind-grid{grid-template-columns:repeat(2,1fr);}
  .about .grid{grid-template-columns:1fr;gap:1.5rem;}
}
@media(max-width:560px){
  nav ul{display:none;}
  .menu-btn{display:block;}
  .ind-grid{grid-template-columns:1fr;}
}

/* ---------- How We Work (ink band) ---------- */
.howwework{background:var(--ink);color:var(--cream);text-align:center;}
.howwework .eyebrow{color:var(--oxblood);display:block;margin-bottom:.7rem;}
.howwework h2{color:var(--cream);max-width:22ch;margin:0 auto 1.1rem;}
.howwework p{color:rgba(246,243,238,.82);max-width:66ch;margin:0 auto;font-size:1.08rem;}
.howwework .channels{margin-top:1.6rem;font-size:var(--small);letter-spacing:.1em;color:rgba(246,243,238,.55);text-transform:uppercase;}