/* --- Variables --- */
:root {
  --bg: #0d0f12;
  --bg-elevated: #161a1f;
  --bg-card: #1c2128;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #3fb950;
  --accent-hover: #56d364;
  --border: #30363d;
  --radius: 8px;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 7.5rem;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 18, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 6.5rem;
  padding: 0.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  color: var(--text);
  transition: opacity 0.2s;
}
.logo:hover { color: var(--text); opacity: 0.85; }
.logo-img {
  height: 4rem;
  max-height: 64px;
  width: auto;
  max-width: 280px;
  display: block;
  object-fit: contain;
  object-position: left center;
}

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2.25rem;
}
.nav a {
  color: var(--text-muted);
  font-size: 1.125rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

@media (max-width: 768px) {
  html { scroll-padding-top: 5.5rem; }
  .header-inner { min-height: 5rem; }
  .logo-img {
    height: 3rem;
    max-height: 48px;
    max-width: 200px;
  }
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: none;
  }
  .nav.is-open { display: block; }
  .nav ul { flex-direction: column; gap: 0.5rem; }
  .nav a { display: block; padding: 0.6rem 0; font-size: 1.125rem; }
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 4rem 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(63, 185, 80, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(63, 185, 80, 0.06), transparent);
  pointer-events: none;
}

.hero-inner { position: relative; }

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.hero .highlight {
  color: var(--accent);
  position: relative;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 32em;
  margin: 0 0 2rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

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

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Sections --- */
.section {
  padding: 4.5rem 0;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-lead {
  color: var(--text-muted);
  margin: 0 0 2.5rem;
  max-width: 28em;
}

/* --- Services grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.card-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- About --- */
.about { background: var(--bg-elevated); }

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-content .section-title { margin-bottom: 0.5rem; }

.about-lead {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about-content p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.about-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.about-list li:last-child { border-bottom: none; }

@media (max-width: 768px) {
  .about-inner { grid-template-columns: 1fr; }
}

/* --- Contact --- */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

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

.contact-form label {
  font-weight: 500;
  font-size: 0.9375rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

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

.contact-form textarea { resize: vertical; min-height: 120px; }

.contact-info p {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .contact-inner { grid-template-columns: 1fr; }
}

/* --- Footer --- */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}