/* AcumenAI Consultants — Site Styles */
/* Brand: OLED dark, Satoshi, chrome accent */

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

:root {
  --black: #0D0D0D;
  --charcoal: #1A1A1A;
  --card: #131313;
  --silver-light: #CCCCCC;
  --silver-mid: #888888;
  --white: #FFFFFF;
  --border: rgba(255,255,255,0.08);
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Satoshi', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.container.narrow { max-width: 820px; text-align: center; }

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  z-index: 110;
}
.nav-toggle:hover { background: rgba(255,255,255,0.04); }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transform-origin: center;
  transition: transform 0.3s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img {
  height: 110px;
  width: auto;
  display: block;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 40px;
}
.nav-links a {
  font-weight: 500;
  font-size: 15px;
  color: var(--silver-light);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--white); }

/* === HERO === */
.hero {
  position: relative;
  padding: 100px 0 100px;
  text-align: center;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/static/hero-bg.png') center/cover no-repeat;
  opacity: 0.55;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(13,13,13,0.65) 65%, var(--black) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }

.badge, .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--silver-light);
  margin-bottom: 32px;
  letter-spacing: 0.01em;
}
.eyebrow { margin-bottom: 24px; }
.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--white);
}

h1 {
  font-weight: 700;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
h2 {
  font-weight: 700;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 20px;
}
h3 {
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  margin-bottom: 12px;
}

.lead {
  font-size: 19px;
  color: var(--silver-light);
  max-width: 640px;
  margin: 0 auto 36px;
  font-weight: 400;
}
.muted {
  color: var(--silver-mid);
  font-size: 16px;
  margin-top: 16px;
}
.subhead {
  font-size: 18px;
  color: var(--silver-light);
  margin-bottom: 56px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.btn {
  display: inline-block;
  background: var(--white);
  color: var(--black);
  font-weight: 600;
  font-size: 15px;
  padding: 16px 32px;
  border-radius: 999px;
  border: 1px solid var(--white);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,255,255,0.12);
}

.btn-link {
  display: inline-block;
  margin-left: 20px;
  color: var(--muted, #9a9a9a);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-bottom: 1px solid rgba(255,255,255,0.18);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.btn-link:hover {
  color: var(--white);
  border-bottom-color: rgba(255,255,255,0.6);
}
@media (max-width: 640px) {
  .btn-link { display: block; margin-left: 0; margin-top: 18px; }
}

/* === SECTIONS === */
.section {
  padding: 90px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.big-statement {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

/* === SECTION HEAD === */
.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.section-head h2 { margin-bottom: 16px; }
.section-head .subhead { margin-bottom: 0; }

/* === WHY GRID === */
.why-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  text-align: left;
}
.why-image img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  display: block;
  filter: grayscale(0.2) contrast(1.05);
}
.why-content h2 { margin-bottom: 16px; }

/* === STEPS === */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 16px;
  text-align: left;
}
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.step:hover {
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-4px);
}
.step-num {
  position: absolute;
  top: 28px;
  right: 32px;
  font-size: 14px;
  color: var(--silver-mid);
  font-weight: 500;
}
.step-icon {
  font-size: 20px;
  color: var(--silver-light);
  margin-bottom: 18px;
  opacity: 0.8;
}
.step h3 { margin-bottom: 14px; }
.step p { color: var(--silver-light); font-size: 15px; line-height: 1.6; }

/* === SERVICES === */
.services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
  text-align: left;
}
.service {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.service:hover {
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-4px);
}
.service p { color: var(--silver-light); font-size: 15px; line-height: 1.6; }

/* === WHY === */
.why-section .lead { margin-top: 24px; }

/* === FAQ === */
.faq-section .section-head { margin-bottom: 48px; }
.faq {
  max-width: 820px;
  margin: 0 auto;
  text-align: left;
}
.faq-item {
  border-top: 1px solid var(--border);
  padding: 32px 4px;
}
.faq-item:last-child {
  border-bottom: 1px solid var(--border);
}
.faq-q {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
  color: var(--white);
}
.faq-a {
  color: var(--silver-light);
  font-size: 16px;
  line-height: 1.65;
  margin: 0;
}

/* === CTA === */
.cta-section {
  background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.02) 100%);
  padding: 140px 0;
}
.cta-section h2 { margin-top: 8px; margin-bottom: 24px; }

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
}
.footer-tag {
  font-size: 14px;
  color: var(--silver-light);
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-contact {
  font-size: 15px;
  font-weight: 500;
  color: var(--silver-light);
  letter-spacing: 0.01em;
  margin-bottom: 10px;
}
.footer-contact a {
  border-bottom: 1px solid rgba(255,255,255,0.18);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-contact a:hover {
  color: var(--white);
  border-bottom-color: rgba(255,255,255,0.6);
}
.footer-meta {
  font-size: 13px;
  color: var(--silver-mid);
}

.contact-direct {
  margin-top: 24px;
  font-size: 14px;
  color: var(--silver-mid);
}
.contact-direct a {
  color: var(--silver-light);
  border-bottom: 1px solid rgba(255,255,255,0.18);
  padding-bottom: 1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.contact-direct a:hover {
  color: var(--white);
  border-bottom-color: rgba(255,255,255,0.6);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .logo img { height: 96px; }
  .nav-links { gap: 28px; }
}

@media (max-width: 860px) {
  .nav-inner { padding: 14px 24px; }
  .logo img { height: 72px; }
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(13,13,13,0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    transition: max-height 0.35s ease, padding 0.35s ease;
  }
  .nav-links.is-open {
    max-height: 360px;
    padding: 16px 24px 24px;
    pointer-events: auto;
  }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 16px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links li:last-child a { border-bottom: 0; }

  body.nav-open { overflow: hidden; }

  .hero { padding: 72px 0 88px; }
  .section { padding: 64px 0; }
  .cta-section { padding: 88px 0; }
  .steps, .services { grid-template-columns: 1fr; gap: 20px; margin-top: 40px; }
  .container { padding: 0 24px; }
  .why-grid { grid-template-columns: 1fr; padding: 0 24px; gap: 32px; }
  .why-grid .why-image { order: -1; }
  .why-grid .why-image img { max-height: 280px; object-fit: cover; }
  .section-head { margin-bottom: 44px; }
  .subhead { margin-bottom: 0; }
  h1 .brk { display: none; }
}

@media (max-width: 540px) {
  .nav-inner { padding: 12px 20px; }
  .logo img { height: 54px; }
  .container { padding: 0 20px; }

  h1 { font-size: 38px; line-height: 1.1; }
  h2 { font-size: 28px; }
  h3 { font-size: 20px; }
  .lead { font-size: 16px; margin-bottom: 28px; }
  .big-statement { font-size: 22px; }
  .badge, .eyebrow {
    font-size: 12px;
    padding: 7px 14px;
    margin-bottom: 22px;
  }

  .hero { padding: 56px 0 64px; }
  .section { padding: 56px 0; }
  .cta-section { padding: 72px 0; }

  .btn {
    display: block;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    padding: 16px 28px;
    font-size: 15px;
  }

  .step, .service { padding: 28px 24px; border-radius: 16px; }
  .step-num { top: 24px; right: 24px; }
  .why-grid { padding: 0 20px; gap: 28px; }
  .why-grid .why-image img { max-height: 220px; border-radius: 16px; }
  .faq-item { padding: 24px 0; }
  .faq-q { font-size: 18px; }
  .faq-a { font-size: 15px; }
}