:root {
  --bg: #0a0b0f;
  --bg-elevated: #111318;
  --bg-card: #15171e;
  --border: #23262f;
  --text: #f4f5f7;
  --text-muted: #9a9ea9;
  --text-faint: #63676f;
  --accent: #6ee7b7;
  --accent-strong: #34d399;
  --accent-contrast: #05130d;
  --radius: 14px;
  --max-width: 1120px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
  margin-right: 32px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover { color: var(--text); }

.nav-links-mobile {
  display: none;
  flex-direction: column;
  padding: 8px 24px 20px;
  border-top: 1px solid var(--border);
}

.nav-links-mobile a {
  padding: 12px 0;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.nav-links-mobile a:last-child { border-bottom: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-primary:hover { background: var(--accent-strong); transform: translateY(-1px); }

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--text-faint); }

.btn-small {
  padding: 9px 18px;
  font-size: 0.85rem;
}

/* Hero */
.hero {
  padding: 120px 0 80px;
  background:
    radial-gradient(600px circle at 15% 0%, rgba(110, 231, 183, 0.08), transparent 60%),
    radial-gradient(500px circle at 85% 20%, rgba(110, 231, 183, 0.05), transparent 55%);
}

.hero-inner { max-width: 760px; }

.eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  line-height: 1.08;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Logos strip */
.logos {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.logos-label {
  text-align: center;
  color: var(--text-faint);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* Sections */
section { padding: 96px 0; }

.section-eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.services h2, .approach h2, .about h2, .contact h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 48px;
  max-width: 560px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: rgba(110, 231, 183, 0.35);
  transform: translateY(-2px);
}

.card-icon {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.card h3 { font-size: 1.1rem; margin-bottom: 12px; }

.card p { color: var(--text-muted); font-size: 0.95rem; }

/* Approach steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-number {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3 { font-size: 1.05rem; margin-bottom: 10px; }

.step p { color: var(--text-muted); font-size: 0.92rem; }

/* About */
.about {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.about-text h2 { margin-bottom: 20px; }

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.about-card h3 { font-size: 1rem; margin-bottom: 18px; }

.about-card ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }

.about-card li {
  color: var(--text-muted);
  font-size: 0.92rem;
  padding-left: 22px;
  position: relative;
}

.about-card li::before {
  content: "→";
  color: var(--accent);
  position: absolute;
  left: 0;
}

/* Contact */
.contact-inner { max-width: 620px; }

.contact-sub { color: var(--text-muted); margin-bottom: 40px; font-size: 1.05rem; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 24px;
}

.form-row { display: flex; flex-direction: column; gap: 8px; }

.form-row label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.form-row input, .form-row textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.15s ease;
}

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

.contact-form .btn { align-self: flex-start; margin-top: 8px; }

.contact-alt { color: var(--text-faint); font-size: 0.9rem; }

.contact-alt a { color: var(--accent); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-inner p { color: var(--text-faint); font-size: 0.85rem; }

.footer-links { display: flex; gap: 20px; }

.footer-links a { color: var(--text-muted); font-size: 0.85rem; }

.footer-links a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .header-inner .btn-small { display: none; }
  .nav-toggle { display: flex; }
  .nav-links-mobile.open { display: flex; }
  .card-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 60px; }
  section { padding: 64px 0; }
}