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

:root {
  --bg: #2a2d31;
  --bg-alt: #34383d;
  --border: #44494f;
  --text: #eef1ee;
  --muted: #b3b9b5;
  --green: #8fe388;
  --green-dark: #5cb85c;
  --accent: #ff8c1a;
  --accent-hover: #ffa64d;
  --accent-dark: #e06c00;
  --radius: 8px;
}

body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

/* Header & navigation */
header {
  background: var(--bg-alt);
  border-bottom: 2px solid var(--green);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 1px;
}

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

.nav-links {
  display: flex;
  gap: 10px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover {
  background: var(--accent);
  color: #1f2124;
}

.nav-links a.active {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
}

/* Layout */
main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

h2 {
  color: var(--green);
  font-size: 1.5rem;
  margin: 32px 0 16px;
}

p {
  color: var(--muted);
  margin-bottom: 12px;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  min-height: 680px;
  padding: 60px 20px;
  background: var(--bg);
  border-radius: var(--radius);
}

.hero-img {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  width: 100%;
  height: auto;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, #000 20%, #000 80%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 30%, #000 85%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to right, transparent 0%, #000 20%, #000 80%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 30%, #000 85%, transparent 100%);
  mask-composite: intersect;
}

.hero h1,
.hero p {
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

.hero p {
  color: var(--text);
}

.hero h1 {
  font-size: 2.6rem;
}

.hero h1 span {
  color: var(--green);
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 28px;
  background: var(--accent);
  color: #1f2124;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

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

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  border-top: 3px solid var(--green);
}

.card-img {
  height: 160px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.card-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.card-body {
  padding: 16px;
}

.card-link {
  display: block;
  transition: transform 0.2s, border-color 0.2s;
}

.card-link:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.more {
  color: var(--accent);
  font-weight: 600;
}

.card-link:hover .more {
  color: var(--accent-hover);
}

/* Project detail pages */
.btn-back {
  display: inline-block;
  margin-bottom: 24px;
  padding: 8px 18px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  transition: background 0.2s, color 0.2s;
}

.btn-back:hover {
  background: var(--accent);
  color: #1f2124;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.project-info {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 24px;
}

.project-info h2 {
  margin-top: 0;
}

.specs {
  list-style: none;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.specs li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.specs li:last-child {
  border-bottom: none;
}

.specs span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.card-body h3 {
  color: var(--green);
  margin-bottom: 8px;
}

/* Scanning section */
.scan {
  margin-top: 48px;
  scroll-margin-top: 80px;
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 28px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-text {
  padding: 24px 24px 24px 0;
}

.feature-reverse img {
  order: 2;
}

.feature-reverse .feature-text {
  padding: 24px 0 24px 24px;
}

.feature-text h3 {
  color: var(--green);
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.feature-text ul {
  list-style: none;
  color: var(--muted);
}

.feature-text li {
  padding-left: 22px;
  position: relative;
  margin-bottom: 6px;
}

.feature-text li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--accent);
}

/* Order form */
.form {
  max-width: 600px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

.form input,
.form select,
.form textarea {
  padding: 10px 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font: inherit;
}

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

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background: var(--bg-alt);
  border-top: 2px solid var(--green);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .nav {
    justify-content: center;
  }
  .hero {
    min-height: 480px;
  }
  .hero h1 {
    font-size: 1.9rem;
  }
}

@media (max-width: 800px) {
  .project-info {
    grid-template-columns: 1fr;
  }
  .feature {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .feature-reverse img {
    order: 0;
  }
  .feature-text,
  .feature-reverse .feature-text {
    padding: 20px;
  }
}