:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e4de;
  --fg-muted: #8a8580;
  --accent: #d4a843;
  --accent-dim: #b8922e;
  --accent-glow: rgba(212, 168, 67, 0.12);
  --border: #2a2520;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- SHARED BUTTONS ---- */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.8rem;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.1s;
  cursor: pointer;
  border: none;
}
.btn-primary:hover { background: var(--accent-dim); transform: translateY(-1px); }

.btn-ghost {
  display: inline-block;
  color: var(--fg-muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
  cursor: pointer;
}
.btn-ghost:hover { color: var(--fg); }

.btn-outline {
  display: inline-block;
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
  cursor: pointer;
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent-dim); color: var(--accent); }

.btn-full { width: 100%; text-align: center; }

/* ---- SECTION LABEL (shared) ---- */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

/* ---- NAV ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--fg); }

.nav-cta {
  background: var(--accent) !important;
  color: #0a0a0a !important;
  padding: 0.5rem 1.2rem;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: background 0.15s !important;
}
.nav-cta:hover { background: var(--accent-dim) !important; }

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 5rem; /* 8rem top = 64px nav + breathing room */
  position: relative;
  background:
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(212, 168, 67, 0.06), transparent),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(212, 168, 67, 0.04), transparent),
    var(--bg);
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  margin-bottom: 2.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  color: var(--accent);
  font-style: italic;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.hero-stat-row {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  max-width: 180px;
  line-height: 1.4;
}

/* ---- PROBLEM ---- */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.problem h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 3rem;
  max-width: 700px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: var(--accent-dim);
}

.problem-icon {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 700;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- SERVICES ---- */
.services {
  padding: 6rem 2rem;
}

.services-inner {
  max-width: 800px;
  margin: 0 auto;
}

.services h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 3rem;
}

.service-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 0.2rem 0.6rem;
  align-self: center;
  flex-shrink: 0;
  margin-left: auto;
}

.services-list {
  display: flex;
  flex-direction: column;
}

.service-item {
  display: flex;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.service-item:first-child {
  border-top: 1px solid var(--border);
}

.service-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-dim);
  padding-top: 0.2rem;
  flex-shrink: 0;
  width: 2.5rem;
}

.service-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.service-content p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- MATH ---- */
.math {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.math-inner {
  max-width: 900px;
  margin: 0 auto;
}

.math-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.math h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  margin-bottom: 3rem;
  max-width: 600px;
}

.math-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.math-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
}

.math-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 0.6rem;
}

.math-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

.math-footnote {
  font-size: 1.05rem;
  color: var(--fg);
  font-weight: 500;
  max-width: 600px;
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, var(--accent-glow), transparent),
    var(--bg);
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.closing-cta {
  margin: 2rem 0 1.5rem;
  display: inline-block;
}

.closing-location {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-top: 1.5rem;
}

/* Scroll offset to compensate for fixed nav */
section[id] {
  scroll-margin-top: 72px;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-email {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ---- SOCIAL PROOF ---- */
.social-proof {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.social-proof-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.social-proof h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 600;
  margin-bottom: 3rem;
  max-width: 640px;
}

.case-studies {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.case-study {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transition: border-color 0.2s;
}
.case-study:hover { border-color: var(--accent-dim); }

.case-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.case-industry {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 700;
}

.case-location {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg-muted);
}

.case-metric-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.case-metric {
  display: flex;
  flex-direction: column;
}

.case-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1;
}

.case-unit {
  font-size: 0.72rem;
  color: var(--fg-muted);
  margin-top: 0.2rem;
}

.case-arrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.2rem;
}

.case-story {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.65;
  font-style: italic;
}

.case-credit {
  font-size: 0.78rem;
  color: var(--fg-muted);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.case-systems {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--accent-dim);
  letter-spacing: 0.05em;
}

/* ---- PRICING ---- */
.pricing {
  padding: 6rem 2rem;
}

.pricing-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.pricing h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 600;
  margin-bottom: 0.75rem;
  max-width: 600px;
}

.pricing-sub {
  font-size: 0.95rem;
  color: var(--fg-muted);
  margin-bottom: 3rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pricing-featured {
  border-color: var(--accent-dim);
  background: linear-gradient(180deg, rgba(212,168,67,0.05) 0%, var(--bg-card) 40%);
}

.pricing-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  white-space: nowrap;
}

.pricing-tier {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.price-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.pricing-desc {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.6;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.pricing-features li {
  font-size: 0.88rem;
  color: var(--fg-muted);
  padding-left: 1.2rem;
  position: relative;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

.pricing-guarantee {
  margin-top: 2.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 1.5rem;
}

.guarantee-icon {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.pricing-guarantee p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- CONTACT ---- */
.contact {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.contact-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-left h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

.contact-left p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-promise-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-promise {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.promise-check {
  color: var(--accent);
  flex-shrink: 0;
  font-weight: 700;
  margin-top: 0.05rem;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.15s;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent-dim);
}

.form-group input::placeholder { color: var(--fg-muted); opacity: 0.6; }

.form-note {
  font-size: 0.78rem;
  color: var(--fg-muted);
  text-align: center;
}

.form-success {
  align-items: center;
  gap: 0.75rem;
  background: rgba(212, 168, 67, 0.08);
  border: 1px solid var(--accent-dim);
  padding: 1.25rem 1.5rem;
  font-size: 0.92rem;
  color: var(--fg);
}

.success-icon {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.form-error {
  font-size: 0.85rem;
  color: #e07070;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(224,112,112,0.3);
  background: rgba(224,112,112,0.06);
}

.form-error a { color: var(--accent); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .case-studies { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  .hero { padding: 6rem 1.5rem 3rem; min-height: auto; }
  .hero-stat-row { gap: 1.5rem; }
  .stat-num { font-size: 1.6rem; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem { padding: 4rem 1.5rem; }
  .services { padding: 4rem 1.5rem; }
  .service-item { flex-direction: column; gap: 0.5rem; }
  .service-number { width: auto; }
  .math { padding: 4rem 1.5rem; }
  .math-grid { grid-template-columns: 1fr; }
  .math-value { font-size: 1.6rem; }
  .closing { padding: 5rem 1.5rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
  .social-proof { padding: 4rem 1.5rem; }
  .pricing { padding: 4rem 1.5rem; }
  .contact { padding: 4rem 1.5rem; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: rgba(10,10,10,0.97);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    gap: 1.25rem;
  }
  .nav-mobile-toggle { display: block; }
  .hero-actions { gap: 1rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .hero-sub { font-size: 1rem; }
  .hero-stat-row { flex-direction: column; gap: 1.5rem; }
  .stat-label { max-width: none; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}