*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:        #0a0a0f;
  --surface:    #0f0f17;
  --panel:      #141420;
  --border:     rgba(255,255,255,0.07);
  --border-acc: rgba(180,155,100,0.3);
  --gold:       #b49b64;
  --gold-lt:    #d4bc88;
  --gold-dim:   rgba(180,155,100,0.12);
  --t1:         #faf8f4;
  --t2:         #c4beb2;
  --t3:         #8a8478;
  --serif:      'Cormorant Garamond', Georgia, serif;
  --sans:       'Jost', sans-serif;
  --mono:       'DM Mono', monospace;
  --ease:       cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }
body {
  background: var(--ink); color: var(--t1); font-family: var(--sans);
  font-weight: 300; line-height: 1.7; overflow-x: hidden;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
/* Formulas background — fixed behind all content */
body::after {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background-image: url('../img/formulas.jpg');
  background-size: cover; background-position: center; background-repeat: no-repeat;
  opacity: 0.35;
}
/* Grain overlay */
body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 200; opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}
::selection { background: rgba(180,155,100,0.25); color: var(--t1); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: rgba(180,155,100,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ======= NAV ======= */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.8rem 4rem; border-bottom: 1px solid var(--border);
  background: rgba(10,10,15,0.88); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  transition: padding 0.4s var(--ease), background 0.4s;
}
nav.scrolled { padding: 1.2rem 4rem; background: rgba(10,10,15,0.95); border-bottom-color: var(--border-acc); }
.nav-logo { font-family: var(--serif); font-size: 1.7rem; font-weight: 300; letter-spacing: 0.15em; color: var(--t1); text-decoration: none; display: flex; align-items: center; gap: 0.8rem; }
.nav-logo span { color: var(--gold); }
.nav-links { display: flex; gap: clamp(1.5rem, 2.4vw, 3rem); list-style: none; }
.nav-links a {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--t2); text-decoration: none;
  position: relative; transition: color 0.3s;
}
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--gold); transition: width 0.3s var(--ease); }
.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold); border: 1px solid var(--border-acc);
  padding: 0.6rem 1.5rem; text-decoration: none; transition: all 0.3s var(--ease);
}
.nav-cta:hover { background: var(--gold); color: var(--ink); }
.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 1.5px; background: var(--t2); transition: all 0.3s var(--ease); }
.hamburger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--gold); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--gold); }
.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10,10,15,0.97); z-index: 99;
  flex-direction: column; justify-content: center; align-items: center; gap: 2rem;
  backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px);
  opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease);
}
.mobile-nav.open { opacity: 1; pointer-events: all; }
.mobile-nav a { font-family: var(--serif); font-size: 2rem; font-weight: 300; color: var(--t2); text-decoration: none; transition: color 0.3s; letter-spacing: 0.05em; }
.mobile-nav a:hover { color: var(--gold); }

/* ======= HERO (full-width, no image) ======= */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; text-align: center;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(180,155,100,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(180,155,100,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(180,155,100,0.06) 0%, transparent 70%);
  pointer-events: none; animation: glowPulse 8s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 1; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 0.6; transform: translate(-50%,-50%) scale(1.08); }
}
.hero-content {
  position: relative; z-index: 2; max-width: 860px; padding: 10rem 4rem 6rem;
}
.hero-eyebrow {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 2rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  opacity: 0; animation: fadeSlideUp 0.8s 0.2s var(--ease) forwards;
}
.hero-eyebrow::before, .hero-eyebrow::after { content: ''; width: 2rem; height: 1px; background: var(--gold); }
h1 {
  font-family: var(--serif); font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 300; line-height: 1.05; letter-spacing: -0.01em;
  color: var(--t1); margin-bottom: 1.8rem;
  opacity: 0; animation: fadeSlideUp 0.8s 0.4s var(--ease) forwards;
}
h1 em { font-style: italic; color: var(--gold-lt); }
.hero-sub {
  font-size: 1.1rem; font-weight: 200; color: var(--t2);
  max-width: 56ch; margin: 0 auto 3rem; line-height: 1.85;
  opacity: 0; animation: fadeSlideUp 0.8s 0.6s var(--ease) forwards;
}
.hero-actions {
  display: flex; gap: 1rem; align-items: center; justify-content: center; flex-wrap: wrap;
  opacity: 0; animation: fadeSlideUp 0.8s 0.8s var(--ease) forwards;
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.btn-primary {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink); background: var(--gold);
  border: none; padding: 0.9rem 2rem; text-decoration: none;
  transition: all 0.3s var(--ease); display: inline-block; cursor: pointer;
  position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s var(--ease);
}
.btn-primary:hover { background: var(--gold-lt); transform: translateY(-1px); }
.btn-primary:hover::after { left: 100%; }
.btn-ghost {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--t2); border: 1px solid var(--border);
  padding: 0.9rem 2rem; text-decoration: none; transition: all 0.3s var(--ease); display: inline-block;
}
.btn-ghost:hover { border-color: var(--border-acc); color: var(--t1); transform: translateY(-1px); }

/* ======= MARQUEE ======= */
.marquee-wrap { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); overflow: hidden; padding: 1rem 0; background: var(--surface); }
.marquee-track { display: flex; gap: 4rem; animation: marquee 35s linear infinite; white-space: nowrap; width: max-content; }
.marquee-wrap:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.marquee-item { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--t3); flex-shrink: 0; }
.marquee-item span { color: var(--gold); margin-right: 4rem; }

/* ======= STATS ======= */
.stats-band { border-bottom: 1px solid var(--border); background: var(--surface); }
.stats-inner { max-width: 1200px; margin: 0 auto; padding: 3rem 4rem; display: grid; grid-template-columns: repeat(4,1fr); }
.stat { padding: 0 2rem; border-right: 1px solid var(--border); }
.stat:first-child { padding-left: 0; }
.stat:last-child { border-right: none; }
.stat-num { font-family: var(--serif); font-size: 2.8rem; font-weight: 300; color: var(--gold); line-height: 1; margin-bottom: 0.3rem; }
.stat-label { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--t3); line-height: 1.5; }

/* ======= SECTIONS ======= */
section { padding: 7rem 4rem; }
.section-label {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 1.2rem;
  display: flex; align-items: center; gap: 0.8rem;
}
.section-label::before { content: ''; width: 1.5rem; height: 1px; background: var(--gold); }
h2 { font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3.2rem); font-weight: 300; line-height: 1.1; margin-bottom: 1.5rem; }
h2 em { font-style: italic; color: var(--gold-lt); }

/* ======= FORMULAS BAND (background image) ======= */
.formulas-band {
  position: relative; overflow: hidden;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 6rem 4rem; text-align: center;
}
.formulas-band-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: 0.35;
}
.formulas-band::after {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to bottom, var(--ink), rgba(10,10,15,0.6), var(--ink));
}
.formulas-band-content {
  position: relative; z-index: 2; max-width: 700px; margin: 0 auto;
}
.formulas-band-content blockquote {
  font-family: var(--serif); font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 300; font-style: italic; color: var(--t1); line-height: 1.5;
  margin-bottom: 1rem;
}
.formulas-band-content cite {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--gold); font-style: normal;
}

/* ======= CHALLENGE ======= */
.challenge-bg { background: var(--surface); border-bottom: 1px solid var(--border); }
.challenge-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; }
.challenge-left p { font-size: 1rem; color: var(--t2); line-height: 1.85; font-weight: 200; margin-bottom: 1.2rem; }
.callout-block { border-left: 2px solid var(--gold); padding: 1.4rem 2rem; background: rgba(180,155,100,0.04); margin-bottom: 1.5rem; transition: border-color 0.3s, background 0.3s; }
.callout-block:hover { background: rgba(180,155,100,0.07); }
.callout-block p { font-family: var(--serif); font-size: 1.3rem; font-weight: 300; line-height: 1.45; color: var(--t1); font-style: italic; }
.callout-src { margin-top: 0.7rem; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--t3); }

/* ======= RESPONSE ======= */
.response-inner { max-width: 1200px; margin: 0 auto; }
.response-header { margin-bottom: 4rem; }
.response-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--border); }
.response-col {
  background: var(--panel); padding: 2.5rem 2rem; border: 1px solid var(--border);
  position: relative; overflow: hidden; transition: border-color 0.4s, transform 0.4s var(--ease);
}
.response-col::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease); }
.response-col:hover { border-color: var(--border-acc); transform: translateY(-2px); }
.response-col:hover::after { transform: scaleX(1); }
.col-num { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--gold-lt); margin-bottom: 1.2rem; }
.response-col h3 { font-family: var(--serif); font-size: 1.6rem; font-weight: 300; color: #ffffff; margin-bottom: 0.8rem; line-height: 1.2; }
.response-col p { font-size: 1rem; color: var(--t1); line-height: 1.8; font-weight: 200; }

/* ======= FRAMEWORK ======= */
.framework-bg { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.framework-inner { max-width: 1200px; margin: 0 auto; }
.framework-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; margin-top: 3rem; }
.framework-text p { font-size: 1rem; color: var(--t2); line-height: 1.85; font-weight: 200; margin-bottom: 1.2rem; }
.framework-meta { display: flex; gap: 2.5rem; margin-top: 2rem; flex-wrap: wrap; }
.meta-key { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--t3); margin-bottom: 0.2rem; }
.meta-val { font-family: var(--serif); font-size: 1.1rem; color: var(--t1); }
.finding { margin-top: 2.5rem; border-left: 2px solid var(--gold); padding: 1.2rem 2rem; background: rgba(180,155,100,0.04); }
.finding-label { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.5rem; }
.finding p { font-family: var(--serif); font-size: 1.15rem; font-style: italic; font-weight: 300; color: var(--t1); line-height: 1.5; }
.matrix-panel { background: var(--panel); border: 1px solid var(--border); padding: 2rem; transition: border-color 0.4s; }
.matrix-panel:hover { border-color: var(--border-acc); }
.matrix-panel svg { width: 100%; height: auto; }

/* ======= SERVICES ======= */
.services-inner { max-width: 1200px; margin: 0 auto; }
.services-header { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-bottom: 4rem; align-items: end; }
.services-intro { font-size: 1rem; color: var(--t2); line-height: 1.85; font-weight: 200; }
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--border); }
.service-card {
  background: var(--panel); padding: 2.5rem 2rem; border: 1px solid var(--border);
  position: relative; overflow: hidden; transition: border-color 0.4s, transform 0.4s var(--ease);
}
.service-card::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease); }
.service-card:hover { border-color: var(--border-acc); transform: translateY(-2px); }
.service-card:hover::after { transform: scaleX(1); }
.service-num { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--gold-lt); margin-bottom: 1.5rem; }
.service-card h3 { font-family: var(--serif); font-size: 1.6rem; font-weight: 300; color: #ffffff; margin-bottom: 0.8rem; line-height: 1.2; }
.service-card p { font-size: 1rem; color: var(--t1); line-height: 1.8; font-weight: 200; }
.service-tag { display: inline-block; margin-top: 1.5rem; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--t3); border: 1px solid var(--border); padding: 0.25rem 0.6rem; transition: border-color 0.3s, color 0.3s; }
.service-card:hover .service-tag { border-color: var(--border-acc); color: var(--gold); }

/* ======= PRINCIPLES ======= */
.principles-bg { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.principles-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.5fr; gap: 6rem; align-items: start; }
.principles-left p { font-size: 1rem; color: var(--t2); line-height: 1.85; font-weight: 200; margin-bottom: 1.5rem; }
.principles-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); }
.principle {
  background: var(--panel); padding: 1.5rem 2rem;
  display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; align-items: start;
  border: 1px solid var(--border); transition: border-color 0.3s, transform 0.3s var(--ease);
}
.principle:hover { border-color: var(--border-acc); transform: translateX(4px); }
.p-num { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; color: var(--gold); padding-top: 0.2rem; }
.principle h4 { font-family: var(--serif); font-size: 1.25rem; font-weight: 400; color: var(--t1); margin-bottom: 0.3rem; }
.principle p { font-size: 1rem; color: var(--t1); font-weight: 200; line-height: 1.7; }

/* ======= CONTACT ======= */
.contact-inner { max-width: 1200px; margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 6rem; margin-top: 3rem; }
.contact-statement { font-family: var(--serif); font-size: 1.55rem; font-weight: 300; color: var(--t2); line-height: 1.5; margin-bottom: 3rem; }
.contact-links { display: flex; flex-direction: column; gap: 1.2rem; }
.contact-link {
  display: flex; align-items: center; gap: 1rem; text-decoration: none;
  color: var(--t2); font-size: 0.9rem; font-weight: 200;
  border-bottom: 1px solid var(--border); padding-bottom: 1.2rem;
  transition: color 0.3s, padding-left 0.3s var(--ease);
}
.contact-link:hover { color: var(--gold); padding-left: 0.5rem; }
.cl-label { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--t3); width: 4rem; flex-shrink: 0; }
.contact-form { background: var(--panel); border: 1px solid var(--border); padding: 2.5rem; transition: border-color 0.4s; }
.contact-form:hover { border-color: var(--border-acc); }
.contact-form h4 { font-family: var(--serif); font-size: 1.2rem; font-weight: 300; color: var(--t1); margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.2rem; }
.form-label { display: block; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--t3); margin-bottom: 0.4rem; }
.form-input, .form-textarea { width: 100%; background: var(--surface); border: 1px solid var(--border); color: var(--t1); font-family: var(--sans); font-size: 0.9rem; font-weight: 200; padding: 0.7rem 1rem; outline: none; transition: border-color 0.3s; }
.form-input:focus, .form-textarea:focus { border-color: var(--gold); }
.form-textarea { resize: vertical; min-height: 100px; }

/* ======= FOOTER ======= */
footer { border-top: 1px solid var(--border); padding: 2.5rem 4rem; display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: var(--serif); font-size: 1.1rem; font-weight: 300; letter-spacing: 0.1em; color: var(--t3); display: flex; align-items: center; gap: 0.5rem; }
.footer-logo span { color: var(--gold); }
.footer-copy { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--t3); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--t3); text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: var(--gold); }

/* ======= BACK TO TOP ======= */
.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 90;
  width: 40px; height: 40px; background: var(--panel); border: 1px solid var(--border);
  color: var(--gold); font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(10px); transition: all 0.3s var(--ease); pointer-events: none;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-to-top:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); }

/* ======= FADE ======= */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ======= RESPONSIVE ======= */
@media (max-width: 900px) {
  nav { padding: 1.2rem 2rem; }
  nav.scrolled { padding: 0.9rem 2rem; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }
  section { padding: 5rem 2rem; }
  .hero-content { padding: 8rem 2rem 4rem; }
  .challenge-inner, .framework-grid, .services-header, .principles-inner, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .services-grid, .response-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .stat { padding: 1rem; }
  .stat:nth-child(2) { border-right: none; }
  footer { flex-direction: column; gap: 1rem; text-align: center; padding: 2rem; }
  h1 { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .formulas-band { padding: 5rem 2rem; }
}
@media (max-width: 480px) {
  body::before { display: none; }
  .stats-inner { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); padding: 1.2rem 0; }
  .stat:last-child { border-bottom: none; }
  .hero-content { padding: 7rem 1.5rem 3rem; }
  section { padding: 4rem 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .marquee-track { animation: none; }
}