/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0a0a0a;
  --card-bg: #111110;
  --card-border: #1e1d1a;
  --text: #b8b4ac;
  --text-bright: #e8e5df;
  --accent: #c8ff00;
  --muted: #5e5a52;
  --rule: #1a1a18;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  padding-top: 3.5rem;
}

.grain {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 300%;
  height: 300%;
  pointer-events: none;
  opacity: 0.022;
  z-index: 9999;
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.15s ease, color 0.15s ease; }
a:hover { border-bottom: 1px solid var(--accent); }

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Navigation ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

nav.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}

.nav-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: none;
}

.nav-logo:hover { border-bottom: none; }

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text-bright);
  border-bottom: 2px solid var(--muted);
}

.nav-links a.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-bright);
  margin: 4px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ===== Hero ===== */
.hero {
  padding: 6rem 0 5rem;
  border-bottom: none;
}

.hero .mark {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.hero .mark::after {
  content: '_';
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero .since {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 2.25rem;
}

.hero h1 {
  font-family: var(--font-body);
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.75rem;
}

.hero h1 em {
  font-weight: 400;
  font-style: italic;
  font-size: 0.65em;
  color: var(--text);
  display: block;
  margin-top: 0.3em;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--text);
  line-height: 1.7;
}

.hero .cta {
  display: inline-block;
  margin-top: 2.5rem;
}

/* ===== Page Header (non-home pages) ===== */
.page-header {
  padding: 6rem 0 3.5rem;
  border-bottom: none;
}

.page-header .label {
  margin-bottom: 1rem;
}

.page-header h1 {
  font-family: var(--font-body);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-header .lede {
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.7;
  margin-top: 1.5rem;
}

/* ===== Sections ===== */
section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--rule);
}

section:last-of-type { border-bottom: none; }

.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.75rem;
}

section p { margin-bottom: 1.15rem; }
section p:last-child { margin-bottom: 0; }

.bright {
  color: var(--text-bright);
  font-weight: 700;
}

/* ===== Phase Blocks ===== */
.phase {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 1.5rem 1.75rem;
  margin-bottom: 0.75rem;
}

.phase:last-of-type { margin-bottom: 0; }

.phase-name {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}

.phase p {
  font-size: 0.975rem;
  margin-bottom: 0;
}

/* ===== Findings / Case Studies ===== */
.finding {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem 1.75rem;
  margin-bottom: 0.75rem;
}

.finding:last-child { margin-bottom: 0; }

.finding p {
  color: var(--text);
  font-size: 0.975rem;
  line-height: 1.65;
  margin-bottom: 0;
}

.findings-note {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

/* ===== Steps ===== */
.steps {
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  padding: 1.25rem 1rem 1.25rem 3.5rem;
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  margin-bottom: 0.5rem;
}

.steps li:last-child { margin-bottom: 0; }

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 1.25rem;
  top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

/* ===== Contact Email ===== */
.contact-email {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.contact-email:hover { border-bottom-color: var(--accent); }

.contact-note {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ===== Callout Card ===== */
.callout {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  padding: 2rem 2rem;
  margin-top: 2.5rem;
}

.callout-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.callout-headline {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.callout-body {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.callout-cta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
}

/* ===== CTA Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--bg);
  background: var(--accent);
  padding: 1rem 2.25rem;
  border: none;
  border-bottom: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: opacity 0.15s ease, transform 0.15s ease;
  text-align: center;
}

.btn:hover {
  opacity: 0.9;
  border-bottom: none;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--bg);
  border-bottom: 2px solid var(--accent);
}

.btn-lg {
  font-size: 1rem;
  padding: 1.15rem 3rem;
  font-weight: 700;
}

.btn-block {
  display: block;
  width: 100%;
}

/* ===== Service Cards ===== */
.service {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2rem 2rem;
  margin-bottom: 1rem;
}

.service:last-child { margin-bottom: 0; }

.service-featured {
  border-left: 3px solid var(--accent);
}

.service-name {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}

.service-price {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1rem;
}

.service p {
  font-size: 0.975rem;
  line-height: 1.65;
  margin-bottom: 0;
}

/* ===== Contact Form ===== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-bright);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  line-height: 1.5;
  transition: border-color 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: 5rem 0;
}

.cta-subtext {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.cta-alt {
  margin-top: 2.5rem;
}

/* ===== Footer ===== */
footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--rule);
}

footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-heading {
  color: var(--text-bright);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.footer-col a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  font-size: 0.7rem;
}

/* ===== Fade In ===== */
.fade-in {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .hero { padding: 4rem 0 3.5rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero h1 em { font-size: 0.65em; }
  .page-header { padding: 4rem 0 2.5rem; }
  .page-header h1 { font-size: 1.8rem; }
  section { padding: 3.5rem 0; }
  .contact-email { font-size: 1rem; }

  .phase { padding: 1.25rem 1.25rem; }
  .finding { padding: 1.25rem 1.25rem; }
  .service { padding: 1.5rem 1.25rem; }
  .callout { padding: 1.5rem 1.25rem; }
  .steps li { padding: 1rem 1rem 1rem 3rem; }
  .steps li::before { left: 1rem; top: 1rem; }

  .btn-lg { font-size: 0.9rem; padding: 1rem 2rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.97);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--rule);
    gap: 1rem;
  }
  .nav-links.open { display: flex; }
}