/* ========================================
   NEXITIV — Main Stylesheet
   ======================================== */

:root {
  --bg:        #080c14;
  --bg-2:      #0d1220;
  --bg-3:      #111827;
  --border:    rgba(255,255,255,0.07);
  --border-hl: rgba(99,179,237,0.25);

  --text:      #e2e8f0;
  --text-muted:#94a3b8;
  --text-dim:  #64748b;

  --accent:    #3b82f6;
  --accent-hl: #60a5fa;
  --accent-glow: rgba(59,130,246,0.35);
  --cyan:      #06b6d4;
  --cyan-glow: rgba(6,182,212,0.3);

  --radius:    12px;
  --radius-lg: 20px;
  --transition: 0.22s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hl);
  box-shadow: 0 0 32px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--accent-hl);
  border: 1.5px solid rgba(59,130,246,0.4);
}
.btn-outline:hover {
  border-color: var(--accent-hl);
  background: rgba(59,130,246,0.08);
}

.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.15);
}

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

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-mark {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}

.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--text);
}

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

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

.login-btn { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- MOBILE MENU ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  z-index: 99;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu.open { display: flex; }

.mobile-link {
  padding: 12px 8px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover, .login-mobile { color: var(--accent-hl); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.18) 0%, transparent 70%);
  top: -150px; left: -100px;
}
.glow-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
  bottom: -100px; right: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  width: 100%;
  text-align: center;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-hl);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-hl), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---- SERVER RACK VISUAL ---- */
.hero-visual {
  display: none;
}

.server-rack {
  width: 140px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 0 60px rgba(59,130,246,0.08), inset 0 1px 0 rgba(255,255,255,0.05);
}

.rack-unit {
  height: 20px;
  background: var(--bg-2);
  border-radius: 4px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.rack-unit::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
}

.rack-unit.active::before {
  background: #22c55e;
  box-shadow: 0 0 6px #22c55e;
  animation: blink 3s ease-in-out infinite;
}

.rack-unit.active::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.08));
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---- SECTION COMMON ---- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  padding: 5px 12px;
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-hl);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ---- SERVICES ---- */
.services {
  padding: 100px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(59,130,246,0.03) 0%, transparent 60%);
  pointer-events: none;
}

.service-card:hover {
  border-color: var(--border-hl);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 0 1px var(--border-hl);
}

.service-card--highlight {
  border-color: rgba(6,182,212,0.2);
  background: linear-gradient(135deg, rgba(6,182,212,0.04) 0%, var(--bg) 60%);
}
.service-card--highlight:hover {
  border-color: rgba(6,182,212,0.45);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 0 1px rgba(6,182,212,0.3);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-hl);
}
.service-icon svg { width: 22px; height: 22px; }

.service-card--highlight .service-icon {
  background: rgba(6,182,212,0.1);
  border-color: rgba(6,182,212,0.25);
  color: var(--cyan);
}

.service-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 18px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-features li {
  font-size: 0.82rem;
  color: var(--text-dim);
  padding-left: 14px;
  position: relative;
}

.service-features li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.new-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 3px 10px;
  background: rgba(6,182,212,0.15);
  border: 1px solid rgba(6,182,212,0.35);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---- WHY US ---- */
.why {
  padding: 100px 0;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}

.why-card:hover {
  border-color: var(--border-hl);
  background: rgba(59,130,246,0.03);
}

.why-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: block;
}

.why-card h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.why-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---- CONTACT ---- */
.contact {
  padding: 100px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}

.contact-text .section-tag { margin-bottom: 16px; }

.contact-text h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.contact-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.contact-item svg { color: var(--accent-hl); flex-shrink: 0; }

/* ---- FORM ---- */
.contact-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(59,130,246,0.45);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-group select option {
  background: var(--bg-3);
}

.form-group textarea {
  resize: vertical;
  min-height: 96px;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-brand .logo { margin-bottom: 14px; }

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h5 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 90px 24px 60px; }

  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }

  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
}

@media (max-width: 480px) {
  .why-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .hero-actions .btn { max-width: 280px; }
}