:root {
  --black: #000000;
  --black-soft: #0a0f0a;
  --dark: #0d130d;
  --card: #111a11;
  --green: #00e676;
  --green-bright: #2aff95;
  --green-dark: #00b35c;
  --text: #e8f5e9;
  --text-muted: #9db39f;
  --border: #1f2e20;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  color: var(--black);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 0 35px rgba(0, 230, 118, 0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--green);
  border-color: var(--green);
}

.btn-outline:hover {
  background: rgba(0, 230, 118, 0.12);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
}

.btn-block {
  width: 100%;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--black);
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  border-radius: 6px;
  box-shadow: 0 0 15px rgba(0, 230, 118, 0.5);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 2px;
}

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

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 26px;
  height: 2px;
  background: var(--green);
  transition: 0.3s ease;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: radial-gradient(ellipse at 30% 20%, rgba(0, 230, 118, 0.12), transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(0, 230, 118, 0.08), transparent 45%),
    var(--black);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 230, 118, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 118, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-text {
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 16px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid var(--green);
  border-radius: 30px;
  margin-bottom: 24px;
  background: rgba(0, 230, 118, 0.08);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.hero-stats li {
  display: flex;
  flex-direction: column;
}

.hero-stats strong {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--green);
}

.hero-stats span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ===== Services ===== */
.services {
  background: var(--black-soft);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 28px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 28px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--green), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--green);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 230, 118, 0.15);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: var(--green);
  background: rgba(0, 230, 118, 0.1);
  border-radius: 8px;
  margin-bottom: 20px;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 20px;
}

.card-link {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--green);
  transition: color 0.3s ease;
}

.card-link:hover {
  color: var(--green-bright);
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-box {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(0, 230, 118, 0.15), transparent 70%);
  border: 1px solid var(--border);
  border-radius: 50%;
  text-align: center;
}

.box-line {
  position: absolute;
  inset: 18px;
  border: 1px dashed var(--green);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.about-box span {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 6px;
  color: var(--green);
  margin-bottom: 12px;
}

.about-box strong {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  max-width: 80%;
  line-height: 1.4;
}

.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.about-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 1.05rem;
}

.about-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.7);
}

/* ===== Benefits ===== */
.benefits {
  background: var(--black-soft);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.benefit {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  transition: border-color 0.3s ease;
}

.benefit:hover {
  border-color: var(--green);
}

.benefit-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: rgba(0, 230, 118, 0.25);
  display: block;
  margin-bottom: 12px;
}

.benefit h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

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

.contact-icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--green);
  background: rgba(0, 230, 118, 0.1);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.contact-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 4px;
}

.contact-list a,
.contact-list span {
  color: var(--text-muted);
  font-size: 1.05rem;
  transition: color 0.3s ease;
}

.contact-list a:hover {
  color: var(--green);
}

.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 36px;
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--black-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-feedback {
  margin-top: 16px;
  color: var(--green);
  font-size: 1rem;
  text-align: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--black-soft);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding: 56px 24px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}

.footer-col ul li {
  color: var(--text-muted);
  padding: 6px 0;
  font-size: 1rem;
}

.footer-col ul a:hover {
  color: var(--green);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 20px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 72px 0;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    flex-direction: column;
    gap: 0;
    background: rgba(0, 0, 0, 0.98);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
  }

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

  .nav-links a {
    display: block;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-stats {
    gap: 28px;
  }

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