/* ==========================================================================
   SkyNet - Identity Security Solutions
   Design System / Global Stylesheet
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Backgrounds */
  --bg-primary: #05070d;
  --bg-secondary: #0a0e1a;
  --bg-tertiary: #0d1220;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --surface-solid: #0f1524;

  /* Text */
  --text-primary: #f3f6fb;
  --text-secondary: #9aa7bd;
  --text-muted: #64708a;

  /* Accents */
  --accent: #22d3ee;
  --accent-strong: #5eead4;
  --accent-blue: #3b82f6;
  --accent-glow: rgba(34, 211, 238, 0.18);

  /* Borders */
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(34, 211, 238, 0.35);

  /* Layout */
  --container: 1200px;
  --container-narrow: 860px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --nav-height: 84px;
  --nav-height-scrolled: 66px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 0.2s;
  --dur-base: 0.4s;
  --dur-slow: 0.8s;

  /* Type */
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: auto;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
textarea {
  font-family: inherit;
}

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Background texture: fine grid + soft radial glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, black 0%, transparent 75%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background: var(--bg-primary);
}

/* ---------- Layout Helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  position: relative;
  padding-block: clamp(64px, 9vw, 128px);
}

.section-tight {
  padding-block: clamp(48px, 6vw, 84px);
}

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.015) 20%, rgba(255, 255, 255, 0.015) 80%, transparent);
}

.section-header {
  max-width: var(--container-narrow);
  margin-bottom: clamp(36px, 5vw, 64px);
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  color: var(--text-primary);
  margin-bottom: 18px;
}

.section-sub {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  max-width: 640px;
}

.section-header.center .section-sub {
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
  min-height: 48px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  color: #04141a;
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.25), 0 12px 30px -10px rgba(34, 211, 238, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.4), 0 18px 40px -12px rgba(34, 211, 238, 0.6);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(6px);
}

.btn-secondary:hover {
  border-color: var(--border-accent);
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

/* ---------- Grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* ---------- Card ---------- */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  backdrop-filter: blur(8px);
  transition: transform var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--surface-strong);
  box-shadow: 0 20px 50px -24px rgba(34, 211, 238, 0.35);
}

.card-list {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-list li {
  position: relative;
  padding-left: 22px;
  color: var(--text-secondary);
  font-size: 0.94rem;
}

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  transform: rotate(45deg);
  opacity: 0.85;
}

/* ---------- Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.4s; }

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(5, 7, 13, 0.35);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(10px);
  transition: height var(--dur-base) var(--ease), background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}

.navbar.is-scrolled {
  height: var(--nav-height-scrolled);
  background: rgba(5, 7, 13, 0.82);
  border-bottom-color: var(--border);
  box-shadow: 0 12px 30px -18px rgba(0, 0, 0, 0.7);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-logo {
  height: 52px;
  width: auto;
  display: block;
  transition: height var(--dur-base) var(--ease);
}

.navbar.is-scrolled .brand-logo {
  height: 40px;
}

.brand-sub {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  position: relative;
  padding: 10px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.nav-links a[aria-current="page"],
.nav-links a.is-active {
  color: var(--accent);
}

.nav-links a[aria-current="page"]::after,
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 5px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-cta .btn {
  padding: 11px 20px;
  font-size: 0.82rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-panel {
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: rgba(5, 7, 13, 0.98);
  backdrop-filter: blur(14px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  gap: 8px;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
  overflow-y: auto;
}

.mobile-panel.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-panel a {
  font-size: 1.1rem;
  font-weight: 500;
  padding: 14px 6px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.mobile-panel a.is-active {
  color: var(--accent);
}

.mobile-panel .btn {
  margin-top: 18px;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding-top: calc(var(--nav-height) + clamp(48px, 8vw, 96px));
  padding-bottom: clamp(64px, 8vw, 112px);
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 5.2vw, 4.1rem);
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 30%, #b7c3d6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tagline {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  color: var(--accent-strong);
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.hero-copy p.lede {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-inline: auto;
}

.orbit-svg {
  width: 100%;
  height: 100%;
}

.orbit-ring {
  fill: none;
  stroke: rgba(148, 163, 184, 0.18);
  stroke-width: 1;
}

.orbit-ring-accent {
  fill: none;
  stroke: url(#skynet-gradient);
  stroke-width: 1.4;
  stroke-dasharray: 4 10;
  animation: spin 40s linear infinite;
  transform-origin: center;
}

.orbit-ring-accent.reverse {
  animation-direction: reverse;
  animation-duration: 60s;
}

.orbit-node {
  fill: var(--bg-tertiary);
  stroke: var(--accent);
  stroke-width: 1.5;
}

.orbit-node-core {
  fill: var(--accent);
  filter: drop-shadow(0 0 12px var(--accent));
}

.orbit-link {
  stroke: rgba(34, 211, 238, 0.35);
  stroke-width: 1;
}

.orbit-pulse {
  animation: pulse-node 3.2s var(--ease) infinite;
  transform-origin: center;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse-node {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.25); }
}

.hero-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

/* ==========================================================================
   About
   ========================================================================== */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.belief-card,
.who-card {
  height: 100%;
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.card-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* Vision & Mission */
.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.vm-card {
  padding: 40px;
  border-radius: var(--radius-lg);
}

.vm-card.vision {
  background: linear-gradient(160deg, rgba(34, 211, 238, 0.08), transparent 60%), var(--surface);
  border: 1px solid var(--border-accent);
}

.vm-card.mission {
  background: linear-gradient(160deg, rgba(59, 130, 246, 0.1), transparent 60%), var(--surface);
  border: 1px solid rgba(59, 130, 246, 0.35);
}

/* ==========================================================================
   Services
   ========================================================================== */
.service-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow: hidden;
}

.service-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.service-number {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.service-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.service-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent);
}

.service-card:hover .service-icon {
  border-color: var(--border-accent);
  background: var(--accent-glow);
  transform: scale(1.06);
}

.service-card h3 {
  font-size: 1.2rem;
  line-height: 1.3;
}

.service-tag {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.service-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.service-footer span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.service-arrow {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
}

.service-arrow svg {
  width: 14px;
  height: 14px;
  stroke: var(--accent);
}

.service-card:hover .service-arrow {
  transform: translateX(4px);
  background: var(--accent-glow);
}

.service-accent-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.service-card:hover .service-accent-line {
  transform: scaleX(1);
}

.capability-banner {
  margin-top: 48px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 30px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-accent);
  background: linear-gradient(90deg, var(--accent-glow), transparent);
  flex-wrap: wrap;
}

.capability-banner strong {
  color: var(--text-primary);
  font-size: 1.05rem;
}

.capability-banner p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

/* ==========================================================================
   Engagement Model
   ========================================================================== */
.engagement-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.engagement-track::before {
  content: "";
  position: absolute;
  top: 46px;
  left: 6%;
  right: 6%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent) 15%, var(--border-accent) 85%, transparent);
}

.stage-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.stage-index {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 6px var(--bg-primary);
}

.stage-card h3 {
  font-size: 1.08rem;
  margin-bottom: 14px;
}

/* ==========================================================================
   Zero Trust
   ========================================================================== */
.zt-wrap {
  position: relative;
}

.zt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.zt-card {
  position: relative;
  padding: 30px 26px;
}

.zt-index {
  position: absolute;
  top: 22px;
  right: 26px;
  font-size: 2.1rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.06);
}

/* ==========================================================================
   Compliance
   ========================================================================== */
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.compliance-card {
  position: relative;
  overflow: hidden;
}

.compliance-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, var(--accent-glow) 50%, transparent);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 1.4s var(--ease), opacity 0.4s var(--ease);
}

.compliance-card:hover::after {
  transform: translateY(100%);
  opacity: 1;
}

.compliance-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.compliance-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent);
}

/* ==========================================================================
   Why SkyNet
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.why-card {
  display: flex;
  gap: 22px;
  padding: 34px;
}

.why-card .card-icon {
  flex-shrink: 0;
  margin-bottom: 0;
}

/* ==========================================================================
   Final CTA
   ========================================================================== */
.cta-section {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-inline: 24px;
  max-width: calc(var(--container) + 48px);
  margin-inline: auto;
  padding: clamp(48px, 7vw, 88px) clamp(24px, 6vw, 72px);
  background:
    radial-gradient(ellipse 70% 100% at 20% 0%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(ellipse 60% 90% at 100% 100%, rgba(59, 130, 246, 0.14), transparent 60%),
    var(--surface-solid);
  border: 1px solid var(--border);
  text-align: center;
}

.cta-shield {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 640px;
  height: 640px;
  opacity: 0.35;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin-inline: auto;
}

.cta-content h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  margin-bottom: 24px;
}

.cta-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  width: fit-content;
  margin-inline: auto;
  margin-bottom: 36px;
  color: var(--text-secondary);
}

.cta-points li {
  position: relative;
  padding-left: 24px;
  font-size: 0.98rem;
}

.cta-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  transform: translateY(-50%) rotate(45deg);
}

.cta-actions {
  justify-content: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 64px 32px;
  background: var(--bg-secondary);
  margin-top: clamp(64px, 8vw, 112px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

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

.footer-brand p {
  color: var(--text-secondary);
  max-width: 320px;
  font-size: 0.92rem;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color var(--dur-fast) var(--ease);
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color var(--dur-fast) var(--ease);
}

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

.footer-contact svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent);
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 28px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface-solid);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility var(--dur-base);
  box-shadow: 0 12px 30px -14px rgba(0, 0, 0, 0.7);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
}

/* ---------- Contact page ---------- */
.contact-card {
  max-width: 560px;
  margin-inline: auto;
  padding: clamp(36px, 5vw, 56px);
  text-align: center;
}

.contact-card .brand {
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  margin-bottom: 22px;
}

.contact-card .brand-logo {
  height: 96px;
  margin-inline: auto;
}

.contact-card .footer-contact {
  margin-top: 28px;
  gap: 16px;
}

.contact-card .footer-contact a {
  justify-content: center;
  font-size: 1.05rem;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.contact-card .footer-contact a:hover {
  border-color: var(--border-accent);
  background: var(--surface-strong);
  transform: translateY(-2px);
  color: var(--accent);
}

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  padding-top: calc(var(--nav-height) + 56px);
  padding-bottom: 48px;
}

.page-hero .eyebrow {
  margin-bottom: 16px;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  max-width: 760px;
}

.page-hero p {
  color: var(--text-secondary);
  max-width: 620px;
  margin-top: 16px;
  font-size: 1.05rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  background: var(--accent);
  color: #04141a;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .engagement-track { grid-template-columns: repeat(2, 1fr); }
  .engagement-track::before { display: none; }
  .zt-grid { grid-template-columns: repeat(2, 1fr); }
  .compliance-grid { grid-template-columns: repeat(2, 1fr); }
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
    max-width: 360px;
  }
  .hero-copy p.lede {
    max-width: 100%;
  }
}

@media (max-width: 900px) {
  .nav-links,
  .nav-cta,
  .hero-primary-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .split-layout,
  .vm-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  :root {
    --nav-height: 72px;
    --nav-height-scrolled: 60px;
  }

  .brand-logo {
    height: 40px;
  }

  .navbar.is-scrolled .brand-logo {
    height: 34px;
  }

  .container {
    padding-inline: 18px;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .engagement-track {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .engagement-track::before {
    display: none;
  }

  .zt-grid,
  .compliance-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: unset;
    text-align: left;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
  }

  .cta-points {
    align-items: flex-start;
    text-align: left;
  }

  .why-card {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}