:root {
  --bg: #050505;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --muted: #cfcfcf;
  --accent: #0ea5ff;
  --accent-2: #39ff14;
  --border: rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

body::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent), var(--accent-2));
  border-radius: 20px;
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(14, 165, 255, 0.55);
  transition: color 0.25s ease, text-decoration-color 0.25s ease;
}

a:hover {
  color: #6ecfff;
  text-decoration-color: rgba(110, 207, 255, 0.9);
}

button {
  font: inherit;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -2;
}

.glow {
  position: fixed;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 153, 255, 0.18), transparent 70%);
  top: -250px;
  left: -150px;
  z-index: -1;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 999;
  backdrop-filter: blur(12px);
  background: rgba(0, 0, 0, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-container {
  max-width: 1300px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
}

.logo img {
  width: 50px;
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 25px;
}

.nav-links a {
  transition: 0.3s ease;
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--accent-2);
}

.download-btn {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  color: white;
  padding: 12px 22px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.35s ease;
  box-shadow: 0 0 25px rgba(14, 165, 255, 0.35);
  text-decoration: none;
}

.download-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 35px rgba(57, 255, 20, 0.45);
}

.secondary-btn {
  background: #111;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: none;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 30px 80px;
}

.hero-container {
  max-width: 1300px;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: 4.4rem;
  line-height: 1.1;
  margin-bottom: 24px;
  font-weight: 800;
}

.hero-text h1 span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text p {
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 35px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  width: 100%;
  max-width: 760px;
  border-radius: 22px;
  box-shadow: 0 0 80px rgba(14, 165, 255, 0.25);
}

section {
  padding: 110px 30px;
}

.container {
  max-width: 1300px;
  margin: auto;
}

.section-title {
  font-size: 3rem;
  margin-bottom: 18px;
  font-weight: 800;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: #bcbcbc;
  max-width: 850px;
  margin: auto auto 70px;
  line-height: 1.8;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 30px;
  transition: 0.4s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 4px;
  top: 0;
  left: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 40px rgba(14, 165, 255, 0.16);
  border-color: rgba(57, 255, 20, 0.35);
}

.card h3 {
  margin-bottom: 16px;
  font-size: 1.35rem;
}

.card p {
  color: #c9c9c9;
  line-height: 1.7;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  align-items: stretch;
}

.step {
  background: var(--surface);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: 0.35s ease;
}

.step:hover {
  transform: translateY(-8px);
}

.step img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.step-content {
  padding: 28px;
}

.step-number {
  font-size: 0.9rem;
  color: var(--accent-2);
  margin-bottom: 10px;
  font-weight: 700;
}

.step h3 {
  margin-bottom: 14px;
  font-size: 1.4rem;
}

.step p {
  color: var(--muted);
  line-height: 1.7;
}

.software-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 40px;
  align-items: center;
}

.software-preview img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 45px rgba(0, 0, 0, 0.45);
}

.console {
  background: #090909;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.4);
}

.console-top {
  padding: 12px 16px;
  background: #151515;
  display: flex;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.red { background: #ff4d4d; }
.yellow { background: #ffc107; }
.green { background: #00d26a; }

.console-body {
  padding: 24px;
  font-family: monospace;
  font-size: 0.95rem;
  line-height: 1.8;
}

.line-green { color: var(--accent-2); }
.line-blue { color: var(--accent); }
.line-orange { color: orange; }
.line-red { color: #ff4d4d; }

.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.install-box {
  padding: 28px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.install-box span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  margin-bottom: 18px;
  font-weight: bold;
}

.install-box h3 {
  margin-bottom: 14px;
}

.install-box p {
  color: var(--muted);
  line-height: 1.7;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 22px;
}

.faq-item {
  background: var(--surface);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.faq-question {
  padding: 22px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: 0.35s ease;
  color: var(--muted);
  line-height: 1.7;
  padding: 0 22px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 22px 22px;
}

.download-section {
  text-align: center;
  background: linear-gradient(180deg, rgba(14, 165, 255, 0.08), rgba(57, 255, 20, 0.05));
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.download-section h2 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.download-section p {
  max-width: 850px;
  margin: auto auto 35px;
  color: #d1d1d1;
  line-height: 1.8;
}

.large-btn {
  font-size: 1.1rem;
  padding: 16px 34px;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.support-card {
  background: var(--surface);
  padding: 30px;
  border-radius: 22px;
  border: 1px solid var(--border);
}

.support-card h3 {
  margin-bottom: 18px;
}

.support-card p {
  color: var(--muted);
  line-height: 1.7;
}

footer {
  padding: 70px 30px 40px;
  text-align: center;
  color: #9d9d9d;
}