/* ============================================================
   FLUXION — LANDING PAGE STYLES
   ============================================================ */

/* ---- Public Navigation ---- */
.pub-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-8);
  transition: background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.pub-nav.scrolled {
  background: var(--bg-surface);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--color-border);
}

.pub-nav-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  gap: var(--space-8);
}

.pub-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.pub-logo-img {
  width: 38px !important;
  height: 38px !important;
  border-radius: 50% !important;
  object-fit: contain !important;
  background: #FFFFFF !important;
  padding: 3px !important;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1) !important;
  box-sizing: border-box !important;
}

.pub-logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

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

.pub-nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
}

.pub-nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.pub-nav-link:hover { color: var(--color-text); }
.pub-nav-link.active { color: var(--color-accent); }

.pub-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50% !important;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: var(--bg-elevated);
  border: 1.5px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 17px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50% !important;
  background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-cyan-glow);
}

.theme-toggle:hover::before { opacity: 1; }

/* Mobile nav hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: 0 !important;
}

.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 0 !important;
  transition: all var(--transition-base);
}

.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: translateX(-8px); }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.pub-mobile-menu {
  position: fixed;
  top: var(--topbar-height);
  left: 0; right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-4) var(--space-6);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-page), opacity var(--transition-base);
}

.pub-mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.pub-mobile-link {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 0 !important;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.pub-mobile-link:hover { background: var(--bg-elevated); color: var(--color-text); }

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--topbar-height) + var(--space-16)) var(--space-8) var(--space-16);
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    160deg,
    var(--bg-primary) 0%,
    var(--bg-surface) 60%,
    var(--bg-elevated) 100%
  );
}

/* Hero grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.5;
  pointer-events: none;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content {}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: 0 !important;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-6);
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--color-text);
  margin-bottom: var(--space-6);
  letter-spacing: -0.04em;
}

.hero-title-accent {
  color: var(--color-accent);
  position: relative;
}

.hero-tagline {
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
  font-weight: 500;
}

.hero-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-10);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Hero visual panel */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-device {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-6);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 420px;
  position: relative;
}

.hero-device-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.hero-device-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
}

.hero-readings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.hero-reading-item {
  background: var(--bg-elevated);
  border-radius: 0 !important;
  padding: var(--space-4);
  text-align: center;
  border: 1px solid var(--color-border);
}

.hero-reading-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.hero-reading-value {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.hero-reading-unit {
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  font-weight: 600;
}

/* Animated value pulse */
@keyframes valuePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.hero-reading-value.animating {
  animation: valuePulse 2s ease infinite;
}

/* Mini sparkline */
.hero-sparkline {
  height: 48px;
  background: var(--bg-elevated);
  border-radius: 0 !important;
  overflow: hidden;
  position: relative;
}

.hero-sparkline svg {
  width: 100%; height: 100%;
}

/* ---- Section wrapper ---- */
.section {
  padding: var(--space-24) var(--space-8);
}

.section-alt {
  padding: var(--space-24) var(--space-8);
  background: var(--bg-elevated);
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: 0 !important;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* ---- System Flow Diagram ---- */
.flow-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 480px;
  margin: 0 auto;
}

.flow-node {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-5) var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.flow-node:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.flow-node-icon {
  font-size: 28px;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-accent-light);
  border-radius: 0 !important;
  flex-shrink: 0;
}

.flow-node-content {}
.flow-node-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
}

.flow-node-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 20px;
  padding: var(--space-3) 0;
  opacity: 0.6;
}

/* ---- Feature cards ---- */
.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

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

.feature-icon {
  width: 52px; height: 52px;
  background: var(--color-accent-light);
  border-radius: 0 !important;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  margin-bottom: var(--space-5);
  transition: background var(--transition-base);
}

.feature-card:hover .feature-icon { background: var(--color-accent); }
.feature-card:hover .feature-icon svg { color: #FFFFFF; }

.feature-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.feature-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ---- Demo Dashboard preview ---- */
.demo-dashboard {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.demo-topbar {
  background: var(--bg-elevated);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.demo-dot { width: 10px; height: 10px; border-radius: 0 !important; }
.demo-dot:nth-child(1) { background: #EF4444; }
.demo-dot:nth-child(2) { background: #F59E0B; }
.demo-dot:nth-child(3) { background: #10B981; }

.demo-topbar-title {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-left: var(--space-2);
}

.demo-content {
  padding: var(--space-5);
}

.demo-readings {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.demo-reading {
  background: var(--bg-elevated);
  border-radius: 0 !important;
  padding: var(--space-4);
  text-align: center;
  border: 1px solid var(--color-border);
}

.demo-reading-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.demo-reading-val {
  font-family: var(--font-mono);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.demo-reading-unit {
  font-size: 10px;
  color: var(--color-accent);
  font-weight: 600;
}

.demo-chart-area {
  background: var(--bg-elevated);
  border-radius: 0 !important;
  height: 160px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
  gap: 6px;
  overflow: hidden;
}

.demo-bar {
  flex: 1;
  border-radius: 0 !important;
  background: var(--color-accent);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  min-width: 0;
}

.demo-bar:hover { opacity: 1; }
.demo-bar.highlight { opacity: 1; background: var(--color-accent); }

/* ---- Hardware section ---- */
.hw-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hw-visual {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}

.hw-subsystems {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.hw-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.hw-chip:hover { border-color: var(--color-accent); background: var(--color-accent-light); }
.hw-chip-icon { font-size: 18px; flex-shrink: 0; }

.hw-content { display: flex; flex-direction: column; gap: var(--space-6); }
.hw-heading { font-size: var(--font-size-3xl); font-weight: 700; color: var(--color-text); letter-spacing: -0.03em; }
.hw-text { font-size: var(--font-size-base); color: var(--color-text-muted); line-height: var(--leading-relaxed); }

/* ---- Cloud platform diagram ---- */
.cloud-arch {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  align-items: center;
}

.arch-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
  padding: var(--space-6);
}

.arch-node-icon {
  width: 64px; height: 64px;
  background: var(--color-accent-light);
  border: 2px solid var(--color-accent);
  border-radius: 0 !important;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  transition: all var(--transition-base);
}

.arch-node-icon:hover {
  background: var(--color-accent);
  transform: scale(1.08);
}

.arch-node-label {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
}

.arch-node-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.arch-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 20px;
  opacity: 0.5;
  padding-bottom: 40px;
}

/* ---- Security section ---- */
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.security-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  transition: border-color var(--transition-fast);
}

.security-item:hover { border-color: var(--color-accent); }

.security-icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--color-accent-light);
  border-radius: 0 !important;
  display: flex; align-items: center; justify-content: center;
}

.security-title { font-size: var(--font-size-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); }
.security-text { font-size: var(--font-size-sm); color: var(--color-text-muted); line-height: var(--leading-relaxed); }

/* ---- AI section ---- */
.ai-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.ai-card {
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.ai-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-accent); transform: translateY(-3px); }

.ai-card-icon { font-size: 32px; margin-bottom: var(--space-4); }
.ai-card-title { font-size: var(--font-size-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.ai-card-text { font-size: var(--font-size-sm); color: var(--color-text-muted); line-height: var(--leading-relaxed); }

.ai-disclaimer {
  background: var(--color-warning-bg);
  border: 1px solid var(--color-warning);
  border-radius: 0 !important;
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-warning-text);
  margin-top: var(--space-8);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--bg-sidebar);
  padding: var(--space-16) var(--space-8) var(--space-8);
  color: var(--color-text-sidebar);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand {}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-logo-img {
  width: 38px !important;
  height: 38px !important;
  border-radius: 50% !important;
  object-fit: contain !important;
  background: #FFFFFF !important;
  padding: 3px !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2) !important;
  display: inline-block !important;
  opacity: 1 !important;
  filter: none !important;
  box-sizing: border-box !important;
}
.footer-logo-text { font-size: var(--font-size-xl); font-weight: 700; color: #FFFFFF; }

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-sidebar);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}

.footer-powered {
  font-size: var(--font-size-xs);
  color: var(--color-text-faint);
}

.footer-powered strong { color: var(--color-accent); }

.footer-col-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #FFFFFF;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-sidebar);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: var(--font-size-xs);
  color: var(--color-text-faint);
}

.footer-legal {
  display: flex;
  gap: var(--space-5);
}

.footer-legal a {
  font-size: var(--font-size-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--color-accent); }

/* ---- Stats bar ---- */
.stats-bar {
  background: var(--color-navy);
  padding: var(--space-8);
}

.stats-bar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stats-bar-item {}

.stats-bar-value {
  font-family: var(--font-mono);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-2);
}

.stats-bar-label {
  font-size: var(--font-size-sm);
  color: rgba(200, 216, 240, 0.7);
  font-weight: 500;
}