:root {
  --bg: #1c1c1c;
  --bg-surface: #262626;
  --bg-card: #303030;
  --border: #404040;
  --text: #ebebeb;
  --text-muted: #888888;
  --green: #6dbf25;
  --green-dim: rgba(109, 191, 37, 0.1);
  --brown: #9b5a1a;
  --nav-height: 64px;
  --radius: 3px;
  --transition: 0.2s ease;
  --mono: "Courier New", "Consolas", "Menlo", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    sans-serif;
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: var(--green);
  text-decoration: none;
}

ul {
  list-style: none;
}

img,
svg {
  display: block;
}

h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 700;
}

.section-eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
}

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

.container {
  width: 100%;
  max-width: 1700px;
  margin: 0 auto;
  padding: 0 5rem;
}

.container-narrow {
  max-width: 720px;
}

.section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 0;
  position: relative;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
}

.section-lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: 1700px;
  margin: 0 auto;
  padding: 0 5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--green);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--mono);
  letter-spacing: 0.04em;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background: var(--green);
  border-radius: 0;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link:hover::after {
  transform: scaleX(0.6);
}

.nav-linkedin {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius);
  transition: color var(--transition);
  margin-left: 0.5rem;
}

.nav-linkedin:hover {
  color: var(--green);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 102;
  position: relative;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 0;
  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.nav-backdrop.visible {
  opacity: 1;
}

.section-home {
  background: var(--bg);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  min-width: 0;
}

.hero-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo img {
  width: 100%;
  max-width: 520px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 60px rgba(109, 191, 37, 0.2));
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 520px;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
  border: none;
}

.btn-primary {
  background: #ffffff;
  color: #0a0a0a;
}

.btn-primary:hover {
  background: #e8e8e8;
  box-shadow: 0 4px 24px rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.col-text p + p {
  margin-top: 1rem;
}

.col-values h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.values-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.values-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.value-icon {
  color: var(--brown);
  font-size: 0.5rem;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.values-list strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--text);
}

.section-who {
  background: var(--bg-surface);
}

.section-what {
  background: var(--bg);
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.card > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.card-features {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-features li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.card-features li::before {
  content: "■";
  position: absolute;
  left: 0;
  color: var(--brown);
  font-size: 0.5rem;
  top: 0.45em;
}

.section-contact {
  background: var(--bg-surface);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

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

.form-group label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #555;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}

.contact-form .btn {
  align-self: flex-start;
}

.footer {
  text-align: center;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-backdrop {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(80vw, 280px);
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--nav-height) + 1.5rem) 0 2rem;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 101;
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    width: 100%;
    padding: 0.9rem 1.5rem;
    border-radius: 0;
    font-size: 0.875rem;
    letter-spacing: 0.06em;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.active {
    color: var(--green);
  }

  .nav-right {
    margin-left: auto;
  }

  .nav-linkedin {
    margin-left: 0;
    padding: 0.4rem 0.5rem;
  }

  .section {
    padding: 5rem 0;
  }

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

  .hero-logo img {
    width: min(70vw, 300px);
    height: auto;
  }

  .container {
    padding: 0 1.5rem;
  }

  .nav-inner {
    padding: 0 1.5rem;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(2.5rem, 10vw, 3.5rem);
  }
}