/* ===== Imperius Group — Landing ===== */

:root{
  --bg: #0A0A0A;
  --bg-alt: #101010;
  --fg: #F5F5F3;
  --fg-dim: #A3A3A0;
  --fg-faint: #6E6E6B;
  --line: #262624;
  --accent: #C9A961;
  --accent-dim: #8f7943;
  --serif: "Georgia", "Times New Roman", serif;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --container: 1180px;
  --ease: cubic-bezier(.16,.8,.24,1);
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg{ display:block; max-width:100%; }

a{ color: inherit; text-decoration: none; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* subtle grain to keep flat black from feeling dead */
.noise{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ===== Header ===== */

.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), background .4s var(--ease);
}
.site-header.scrolled{
  border-bottom-color: var(--line);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo{
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark{
  width: 30px;
  height: 24px;
  flex-shrink: 0;
}
.logo-mark polygon,
.logo-mark rect{
  fill: var(--accent);
}

.logo-word{
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.logo-word span{
  color: var(--accent);
  font-weight: 400;
}

.main-nav{
  display: flex;
  align-items: center;
  gap: 40px;
}
.main-nav a{
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--fg-dim);
  position: relative;
  padding: 4px 0;
  transition: color .25s var(--ease);
}
.main-nav a:hover{ color: var(--fg); }
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:0;
  height:1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.main-nav a:hover::after{ transform: scaleX(1); }

.nav-cta{
  color: var(--fg) !important;
  border: 1px solid var(--line);
  padding: 9px 18px !important;
  border-radius: 2px;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.nav-cta::after{ display:none; }
.nav-cta:hover{ border-color: var(--accent); color: var(--accent) !important; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span{
  display:block;
  height: 1px;
  background: var(--fg);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* ===== Hero ===== */

.hero{
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 76px;
}

.hero-inner{ padding-top: 60px; padding-bottom: 60px; }

.eyebrow{
  font-size: 13px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 28px;
  font-weight: 500;
}

.hero-title{
  margin: 0 0 28px;
  font-weight: 800;
  font-size: clamp(48px, 8.5vw, 108px);
  line-height: .98;
  letter-spacing: -.02em;
}
.hero-title span{ display:block; }

.hero-sub{
  max-width: 560px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.6;
  color: var(--fg-dim);
  font-weight: 300;
  margin: 0 0 44px;
}

.hero-actions{ display:flex; gap: 20px; flex-wrap: wrap; }

.btn{
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 18px 34px;
  border-radius: 2px;
  cursor: pointer;
  border: 1px solid var(--accent);
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.btn-primary{
  background: var(--accent);
  color: #0A0A0A;
}
.btn-primary:hover{
  background: transparent;
  color: var(--accent);
  transform: translateY(-2px);
}

.hero-line{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent);
}

/* ===== Sections ===== */

.section{ padding: 140px 0; position: relative; }
.section-alt{ background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head{ max-width: 640px; margin-bottom: 80px; }

.section-tag{
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
  font-weight: 600;
}

.section-title{
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.15;
  margin: 0 0 20px;
}

.section-desc{
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg-dim);
  font-weight: 300;
  margin: 0;
}

/* ===== Services grid ===== */

.services-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-card{
  background: var(--bg);
  padding: 48px 40px;
  transition: background .3s var(--ease);
}
.service-card:hover{ background: #0e0e0e; }

.service-icon{
  width: 44px; height: 44px;
  color: var(--accent);
  margin-bottom: 28px;
}
.service-icon svg{ width: 100%; height: 100%; }

.service-card h3{
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px;
  letter-spacing: -.01em;
}

.service-card p{
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--fg-dim);
  font-weight: 300;
  margin: 0;
}

/* ===== Pillars ===== */

.pillars{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
  margin-top: 20px;
}

.pillar{
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

.pillar-num{
  display:block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--accent);
  margin-bottom: 18px;
}

.pillar h3{
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px;
}

.pillar p{
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg-dim);
  font-weight: 300;
  margin: 0;
}

/* ===== Process ===== */

.process{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.process-step{
  padding: 0 32px 0 0;
  border-left: 1px solid var(--line);
  padding-left: 28px;
  position: relative;
}
.process-step:first-child{ border-left: none; padding-left: 0; }

.process-num{
  display: block;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .08em;
  font-weight: 600;
  margin-bottom: 20px;
}

.process-step h3{
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 12px;
}

.process-step p{
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--fg-dim);
  font-weight: 300;
  margin: 0;
}

/* ===== CTA / Contact ===== */

.cta-section{ padding-bottom: 160px; }

.cta-head{ max-width: 680px; margin: 0 auto 64px; text-align: center; }
.cta-head .section-tag{ }
.cta-head .section-desc{ margin: 0 auto; }

.cta-title{
  font-size: clamp(30px, 4.5vw, 48px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.15;
  margin: 0 0 20px;
}

.contact-form{
  max-width: 680px;
  margin: 0 auto;
}

.form-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.form-field{ display: flex; flex-direction: column; }
.form-field-full{ grid-column: 1 / -1; }

.form-field label{
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 10px;
}

.form-field input,
.form-field textarea{
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  padding: 10px 2px;
  outline: none;
  resize: vertical;
  transition: border-color .25s var(--ease);
}
.form-field input:focus,
.form-field textarea:focus{ border-color: var(--accent); }

.contact-form .btn{
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  margin-top: 8px;
}
.contact-form .btn:hover{
  background: var(--accent);
  color: #0A0A0A;
}

.form-status{
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--fg-dim);
  min-height: 20px;
}
.form-status.ok{ color: var(--accent); }

/* ===== Footer ===== */

.site-footer{
  border-top: 1px solid var(--line);
  padding: 56px 0 40px;
}

.footer-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 40px;
}

.footer-nav{ display: flex; gap: 32px; }
.footer-nav a{
  font-size: 13px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: .04em;
  transition: color .25s var(--ease);
}
.footer-nav a:hover{ color: var(--fg); }

.footer-line{
  height: 1px;
  background: var(--line);
  margin-bottom: 24px;
}

.footer-bottom{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: var(--fg-faint);
}

/* ===== Reveal on scroll ===== */

.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in-view{
  opacity: 1;
  transform: translateY(0);
}
.hero-title span.reveal{ transition-delay: calc(var(--i, 0) * .08s); }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
  html{ scroll-behavior: auto; }
}

/* ===== Responsive ===== */

@media (max-width: 980px){
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .pillars{ grid-template-columns: 1fr; gap: 40px; }
  .process{ grid-template-columns: repeat(2, 1fr); row-gap: 48px; }
  .process-step:nth-child(3){ border-left: none; padding-left: 0; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 8px 32px 24px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease);
  }
  .main-nav.open{
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav a{ padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .main-nav a:last-child{ border-bottom: none; }
  .nav-cta{ margin-top: 8px; text-align: center; }
  .nav-toggle{ display: flex; }

  .section{ padding: 96px 0; }
  .services-grid{ grid-template-columns: 1fr; }
  .process{ grid-template-columns: 1fr; }
  .process-step{ border-left: none; padding-left: 0; border-top: 1px solid var(--line); padding-top: 24px; }
  .process-step:first-child{ border-top: none; padding-top: 0; }
  .form-row{ grid-template-columns: 1fr; gap: 20px; }
  .footer-top{ flex-direction: column; align-items: flex-start; }
}