/* LI58 Modern IT Support Website */
:root {
  --bg: #0a0e17;
  --bg-card: #111827;
  --bg-alt: #0d1321;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --accent: #00d4aa;
  --accent-dark: #00b894;
  --border: #1f2937;
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 16px 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--accent);
  color: #0a0e17;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 10px 20px;
}

.btn-outline:hover {
  background: var(--accent);
  color: #0a0e17;
}

/* Hero */
.hero {
  padding: 140px 0 80px;
  background: radial-gradient(ellipse at 70% 20%, rgba(0, 212, 170, 0.08) 0%, transparent 50%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

h1 {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

h1 span {
  color: var(--accent);
}

.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

.server-icon {
  width: 280px;
  height: 280px;
  animation: float 6s ease-in-out infinite;
}

.server-icon svg {
  width: 100%;
  height: 100%;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Sections */
.section {
  padding: 100px 0;
}

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

.section-label {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.5px;
}

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.2s, border-color 0.2s;
}

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

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

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

/* Advantages */
.advantages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.advantage {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.adv-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 170, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
}

.advantage h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.advantage p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Contact */
.contact {
  text-align: center;
}

.contact .lead {
  margin: 0 auto 48px;
  max-width: 500px;
}

.contact-cards {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 32px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
  min-width: 280px;
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.contact-icon {
  font-size: 1.8rem;
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
}

.footer .logo {
  margin-bottom: 12px;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.copyright {
  margin-top: 16px;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .hero-buttons {
    justify-content: center;
  }

  .server-icon {
    width: 200px;
    height: 200px;
    margin-top: 20px;
  }

  h1 {
    font-size: 2.8rem;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 100px 0 60px;
  }

  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 2rem;
  }

  .section {
    padding: 70px 0;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

  .contact-cards {
    flex-direction: column;
    align-items: center;
  }

  .contact-card {
    width: 100%;
    max-width: 340px;
  }
}