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

:root {
  --bg: #0d0f14;
  --bg-card: #13161e;
  --bg-card-hover: #181c27;
  --border: #1e2330;
  --border-bright: #2a3050;
  --text: #c9d1e0;
  --text-muted: #5a6480;
  --text-dim: #3a4260;
  --accent: #4f9cff;
  --accent-dim: #1a3560;
  --accent-glow: rgba(79, 156, 255, 0.15);
  --green: #3ddc97;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 15, 20, 0.92);
  backdrop-filter: blur(12px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
}

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

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

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

.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--accent-dim);
  padding: 6px 14px;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s !important;
}

.nav-cta:hover {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
}

/* ── Hero ── */

.hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
}

.terminal-prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.prompt-symbol {
  color: var(--green);
}

.prompt-text {
  color: var(--text-muted);
}

.prompt-text::after {
  content: '▋';
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}

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

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 600;
  line-height: 1.15;
  color: #e8edf5;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

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

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 11px 24px;
  border-radius: 5px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: #6aaaff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(79, 156, 255, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-bright);
}

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

.btn-large {
  padding: 16px 36px;
  font-size: 1rem;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 3px;
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.stack-tags span:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

/* ── Section shared ── */

section {
  padding: 88px 0;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  color: #e8edf5;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

/* ── Services ── */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  transition: all 0.2s;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  transform: translateY(-2px);
}

.service-icon {
  font-size: 1.5rem;
  margin-bottom: 14px;
  filter: grayscale(0.3);
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #e8edf5;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── How we work ── */

.section-intro {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  margin-bottom: 52px;
  line-height: 1.7;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.step {
  padding: 28px 24px;
  border-right: 1px solid var(--border);
  transition: background 0.2s;
}

.step:last-child {
  border-right: none;
}

.step:hover {
  background: var(--bg-card);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.step h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #e8edf5;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Contact ── */

.contact {
  text-align: center;
  border-bottom: none;
}

.contact p {
  color: var(--text-muted);
  margin-bottom: 36px;
  font-size: 1.05rem;
}

.contact-note {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ── Footer ── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.footer-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ── Mobile ── */

@media (max-width: 640px) {
  nav a:not(.nav-cta) {
    display: none;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .step:last-child {
    border-bottom: none;
  }
}