/* ===========================
   NEXUSFLOW — CYBER DARK THEME
   =========================== */

:root {
  --bg: #05060d;
  --panel: #0b0e1a;
  --accent: #6b8bff;
  --accent2: #9f6bff;
  --text: #e8ecff;
  --muted: #8a90b2;
  --glow: rgba(107, 139, 255, 0.45);
  --radius: 14px;
  --transition: 0.25s ease;
}

/* GLOBAL */

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", sans-serif;
}

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

/* HEADER */

.nf-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: rgba(10, 12, 22, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nf-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nf-logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 18px var(--glow);
}

.nf-nav {
  display: flex;
  gap: 22px;
}

.nf-nav a {
  opacity: 0.8;
  transition: var(--transition);
}

.nf-nav a:hover {
  opacity: 1;
}

/* BUTTONS */

.nf-btn-primary {
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: var(--radius);
  color: #05060d;
  font-weight: 600;
  box-shadow: 0 0 18px var(--glow);
  transition: var(--transition);
}

.nf-btn-primary:hover {
  transform: translateY(-2px);
}

.nf-btn-ghost {
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text);
  opacity: 0.8;
  transition: var(--transition);
}

.nf-btn-ghost:hover {
  opacity: 1;
}

/* HERO */

.nf-hero {
  padding: 120px 28px 80px;
  text-align: center;
}

.nf-hero-title {
  font-size: 3rem;
  font-weight: 700;
}

.nf-hero-title span {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  color: transparent;
}

.nf-hero-sub {
  max-width: 600px;
  margin: 18px auto 28px;
  color: var(--muted);
}

.nf-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* SECTIONS */

.nf-section {
  padding: 80px 28px;
}

.nf-section-title {
  font-size: 2rem;
  margin-bottom: 6px;
}

.nf-section-sub {
  color: var(--muted);
  margin-bottom: 32px;
}

/* GRID */

.nf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

/* CARDS */

.nf-card {
  background: var(--panel);
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.nf-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 22px var(--glow);
}

.nf-card-large {
  text-align: center;
}

/* SIDEBAR — FLOATING ICONS */

.nf-sidebar {
  position: fixed;
  top: 50%;
  left: 22px;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 18px;
  z-index: 2000;
}

.nf-sidebar-item {
  width: 48px;
  height: 48px;
  background: var(--panel);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.nf-sidebar-item:hover {
  box-shadow: 0 0 18px var(--glow);
  transform: translateX(4px);
}

.nf-sidebar-item::after {
  content: attr(data-label);
  position: absolute;
  left: 60px;
  opacity: 0;
  background: var(--panel);
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
  white-space: nowrap;
  transition: var(--transition);
  pointer-events: none;
}

.nf-sidebar-item:hover::after {
  opacity: 1;
  transform: translateX(6px);
}

/* ICONS — DUOTONE GLYPHS */

.nf-icon {
  font-size: 22px;
  color: var(--accent);
  filter: drop-shadow(0 0 6px var(--glow));
}

/* FOOTER */

.nf-footer {
  text-align: center;
  padding: 40px;
  color: var(--muted);
}