/* ============================================================
   EchoCrest — Business Consulting
   Geometric intelligence design · topological line systems
   ============================================================ */

:root{
  --bg:#11141a;
  --bg-2:#171b22;
  --panel:#1c212b;
  --panel-2:#222834;
  --line:#2c3543;
  --mineral:#e8e6df;
  --mineral-soft:#b4b2a8;
  --muted:#8a8f9a;
  --gold:#c8a96a;
  --gold-soft:#d9c190;
  --steel:#7ea6c4;
  --ink:#0c0e12;
  --radius:14px;
  --maxw:1180px;
  --font-display:"Fraunces",Georgia,serif;
  --font-body:"Space Mono","Courier New",monospace;
  --font-ui:"Archivo","Helvetica Neue",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--mineral);
  font-family:var(--font-ui);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* topological grid backdrop */
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.16;
  z-index:0;
  pointer-events:none;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 75%);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}

h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.1;letter-spacing:-.01em}
.mono{font-family:var(--font-body)}
.tag{
  font-family:var(--font-body);
  font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold);
}

/* ---------- HEADER ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(17,20,26,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-size:1.35rem;font-weight:600}
.brand svg{width:34px;height:34px}
.brand b{color:var(--gold)}
nav ul{display:flex;gap:30px;list-style:none;align-items:center}
nav a{font-family:var(--font-body);font-size:.8rem;letter-spacing:.05em;color:var(--mineral-soft);transition:color .25s}
nav a:hover{color:var(--gold)}
.nav-cta{
  border:1px solid var(--gold);color:var(--gold);
  padding:9px 18px;border-radius:8px;font-family:var(--font-body);
  font-size:.78rem;transition:all .25s;
}
.nav-cta:hover{background:var(--gold);color:var(--ink)}
.burger{display:none;background:none;border:0;color:var(--mineral);font-size:1.6rem;cursor:pointer}

/* ---------- HERO ---------- */
.hero{position:relative;padding:120px 0 90px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero h1{font-size:clamp(2.6rem,5.2vw,4.4rem);margin:18px 0 22px}
.hero h1 em{font-style:italic;color:var(--gold)}
.hero p{color:var(--mineral-soft);font-size:1.07rem;max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body);font-size:.85rem;letter-spacing:.04em;
  padding:14px 26px;border-radius:10px;cursor:pointer;border:1px solid transparent;
  transition:transform .25s,background .25s,color .25s;
}
.btn-primary{background:var(--gold);color:var(--ink)}
.btn-primary:hover{transform:translateY(-3px);background:var(--gold-soft)}
.btn-ghost{border-color:var(--line);color:var(--mineral)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}

.hero-visual{position:relative}
.hero-visual img{
  border-radius:var(--radius);border:1px solid var(--line);
  filter:grayscale(.35) contrast(1.05);
  aspect-ratio:4/5;object-fit:cover;
}
.hero-badge{
  position:absolute;bottom:-26px;left:-26px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:18px 22px;font-family:var(--font-body);
  box-shadow:0 18px 40px rgba(0,0,0,.4);
}
.hero-badge .num{font-family:var(--font-display);font-size:2rem;color:var(--gold);line-height:1}
.hero-badge .lbl{font-size:.7rem;letter-spacing:.15em;color:var(--muted);text-transform:uppercase}

/* floating topological svg deco */
.topo{position:absolute;right:-120px;top:-60px;width:520px;opacity:.5;z-index:0;pointer-events:none}

/* ---------- METRICS STRIP ---------- */
.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:38px 24px;text-align:center;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric .num{font-family:var(--font-display);font-size:2.4rem;color:var(--mineral)}
.metric .lbl{font-family:var(--font-body);font-size:.74rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-top:6px}

/* ---------- SECTION ---------- */
section{padding:96px 0;position:relative}
.sec-head{max-width:680px;margin-bottom:54px}
.sec-head h2{font-size:clamp(2rem,3.6vw,2.9rem);margin:14px 0}
.sec-head p{color:var(--mineral-soft)}

/* ---------- SERVICES ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s;
}
.card::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 100% 0%,rgba(200,169,106,.10),transparent 60%);
  opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-6px);border-color:var(--gold)}
.card:hover::after{opacity:1}
.card .ic{width:46px;height:46px;margin-bottom:18px}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{color:var(--mineral-soft);font-size:.94rem}
.card .ref{display:inline-block;margin-top:16px;font-family:var(--font-body);font-size:.76rem;color:var(--gold);border-bottom:1px solid transparent;transition:border-color .25s}
.card:hover .ref{border-color:var(--gold)}

/* ---------- PROCESS ---------- */
.process{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.process img{border-radius:var(--radius);border:1px solid var(--line);filter:grayscale(.4) contrast(1.05);aspect-ratio:3/4;object-fit:cover}
.steps{display:flex;flex-direction:column;gap:6px}
.step{display:flex;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step .n{font-family:var(--font-display);font-size:1.7rem;color:var(--gold);min-width:48px}
.step h3{font-size:1.18rem;margin-bottom:4px}
.step p{color:var(--mineral-soft);font-size:.92rem}

/* ---------- PRICING ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;display:flex;flex-direction:column;position:relative;transition:transform .3s,border-color .3s;
}
.plan:hover{transform:translateY(-6px)}
.plan.featured{border-color:var(--gold);background:linear-gradient(180deg,var(--panel-2),var(--panel))}
.plan .badge{
  position:absolute;top:-13px;left:30px;background:var(--gold);color:var(--ink);
  font-family:var(--font-body);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  padding:5px 12px;border-radius:6px;
}
.plan h3{font-size:1.4rem;margin-bottom:6px}
.plan .desc{color:var(--muted);font-size:.86rem;min-height:42px}
.plan .price{font-family:var(--font-display);font-size:2.7rem;color:var(--mineral);margin:16px 0 2px}
.plan .price span{font-size:.95rem;color:var(--muted);font-family:var(--font-body)}
.plan ul{list-style:none;margin:22px 0 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.plan li{display:flex;gap:11px;font-size:.92rem;color:var(--mineral-soft)}
.plan li::before{content:"◆";color:var(--gold);font-size:.7rem;margin-top:5px}
.plan .btn{width:100%;justify-content:center}

/* ---------- TESTIMONIALS ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.quote p{color:var(--mineral-soft);font-style:italic;margin-bottom:18px}
.quote .who{display:flex;align-items:center;gap:12px}
.quote .av{width:42px;height:42px;border-radius:50%;background:var(--panel-2);border:1px solid var(--gold);display:grid;place-items:center;font-family:var(--font-display);color:var(--gold)}
.quote .who b{display:block;font-size:.9rem}
.quote .who span{font-family:var(--font-body);font-size:.72rem;color:var(--muted)}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info p{color:var(--mineral-soft);margin-bottom:24px}
.info-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-row .ic{width:24px;height:24px;color:var(--gold);flex-shrink:0;margin-top:3px}
.info-row b{display:block;font-family:var(--font-body);font-size:.72rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.info-row a,.info-row span{color:var(--mineral)}
.info-row a:hover{color:var(--gold)}

form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.field{margin-bottom:20px}
.field label{display:block;font-family:var(--font-body);font-size:.74rem;letter-spacing:.06em;color:var(--mineral-soft);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;background:var(--bg);border:1px solid var(--line);border-radius:9px;
  padding:13px 15px;color:var(--mineral);font-family:var(--font-ui);font-size:.95rem;transition:border-color .25s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold)}
.field textarea{resize:vertical;min-height:120px}
.checkbox{display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--muted)}
.checkbox input{width:auto;margin-top:4px}
.checkbox a{color:var(--gold);text-decoration:underline}
.form-msg{margin-top:14px;font-family:var(--font-body);font-size:.84rem;display:none}
.form-msg.ok{display:block;color:var(--steel)}
.form-msg.err{display:block;color:#d98a8a}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.acc{border:1px solid var(--line);border-radius:11px;margin-bottom:14px;overflow:hidden;background:var(--panel)}
.acc summary{
  cursor:pointer;list-style:none;padding:20px 24px;font-family:var(--font-display);font-size:1.1rem;
  display:flex;justify-content:space-between;align-items:center;
}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";color:var(--gold);font-size:1.5rem;transition:transform .25s}
.acc[open] summary::after{transform:rotate(45deg)}
.acc .body{padding:0 24px 22px;color:var(--mineral-soft);font-size:.94rem}

/* ---------- CTA BANNER ---------- */
.cta-banner{
  background:linear-gradient(135deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:56px;text-align:center;position:relative;overflow:hidden;
}
.cta-banner h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-bottom:14px}
.cta-banner p{color:var(--mineral-soft);max-width:560px;margin:0 auto 28px}

/* ---------- FOOTER ---------- */
footer{background:var(--bg-2);border-top:1px solid var(--line);padding:60px 0 30px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid h4{font-family:var(--font-body);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot-grid a{color:var(--mineral-soft);font-size:.9rem}
.foot-grid a:hover{color:var(--gold)}
.foot-brand p{color:var(--muted);font-size:.9rem;max-width:320px;margin-top:14px}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.foot-bottom p,.foot-bottom a{font-family:var(--font-body);font-size:.76rem;color:var(--muted)}
.foot-bottom a:hover{color:var(--gold)}

/* ---------- COOKIE BANNER ---------- */
.cookie{
  position:fixed;left:24px;right:24px;bottom:24px;z-index:100;
  background:var(--panel);border:1px solid var(--gold);border-radius:14px;
  padding:22px 26px;display:flex;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:0 24px 60px rgba(0,0,0,.5);flex-wrap:wrap;
  transform:translateY(150%);transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.cookie.show{transform:translateY(0)}
.cookie p{font-size:.88rem;color:var(--mineral-soft);max-width:640px}
.cookie a{color:var(--gold);text-decoration:underline}
.cookie .acts{display:flex;gap:12px;flex-shrink:0}

/* ---------- LEGAL PAGES ---------- */
.legal{padding:120px 0 80px;max-width:820px}
.legal h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:10px}
.legal .upd{font-family:var(--font-body);font-size:.8rem;color:var(--muted);margin-bottom:40px}
.legal h2{font-size:1.4rem;margin:34px 0 12px;color:var(--mineral)}
.legal p,.legal li{color:var(--mineral-soft);margin-bottom:12px}
.legal ul{padding-left:22px;margin-bottom:14px}
.legal a{color:var(--gold);text-decoration:underline}
.back{font-family:var(--font-body);font-size:.82rem;color:var(--gold);display:inline-block;margin-bottom:30px}

/* ---------- REVEAL ANIM ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:960px){
  .hero-grid,.process,.contact-grid{grid-template-columns:1fr;gap:40px}
  .topo{display:none}
  .cards,.pricing,.quotes{grid-template-columns:1fr 1fr}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric:nth-child(2){border-right:0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  nav ul{
    display:none;position:absolute;top:74px;left:0;right:0;
    flex-direction:column;background:var(--bg-2);border-bottom:1px solid var(--line);
    padding:20px 24px;gap:18px;
  }
  nav ul.open{display:flex}
  .burger{display:block}
  .cards,.pricing,.quotes,.metrics-grid,.foot-grid{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .cta-banner{padding:36px 24px}
  .cookie{flex-direction:column;align-items:flex-start}
  section{padding:70px 0}
}