/* ============================================================
   SECUREBYTE SOLUTION — style.css
   Production-ready enterprise cybersecurity website
   cPanel Shared Hosting compatible — no build tools required
   ============================================================ */

/* ============================================================
   CSS CUSTOM PROPERTIES
============================================================ */
:root {
  /* Core Palette */
  --color-bg:          #090D18;
  --color-bg-2:        #0D1321;
  --color-bg-3:        #111827;
  --color-surface:     #0F1724;
  --color-surface-2:   #141C2E;
  --color-border:      rgba(96, 165, 250, 0.12);
  --color-border-2:    rgba(96, 165, 250, 0.06);

  /* Accent */
  --color-accent:      #3B82F6;
  --color-accent-dim:  rgba(59, 130, 246, 0.15);
  --color-accent-glow: rgba(59, 130, 246, 0.08);
  --color-cyan:        #06B6D4;
  --color-cyan-dim:    rgba(6, 182, 212, 0.12);

  /* Text */
  --color-text:        #E2E8F0;
  --color-text-muted:  #94A3B8;
  --color-text-faint:  #475569;
  --color-text-accent: #93C5FD;
  --color-heading:     #F1F5F9;

  /* Typography */
  --font-display:  'Syne', sans-serif;
  --font-body:     'IBM Plex Sans', sans-serif;
  --font-mono:     'IBM Plex Mono', monospace;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;
  --space-5xl:  8rem;

  /* Layout */
  --container-max: 1240px;
  --container-pad: clamp(1.25rem, 5vw, 3rem);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
}

/* ============================================================
   LIGHT THEME OVERRIDES
   Applied when <html data-theme="light">
============================================================ */
[data-theme="light"] {
  --color-bg:          #F8FAFC;
  --color-bg-2:        #F1F5F9;
  --color-bg-3:        #E2E8F0;
  --color-surface:     #FFFFFF;
  --color-surface-2:   #F8FAFC;
  --color-border:      rgba(59, 130, 246, 0.15);
  --color-border-2:    rgba(59, 130, 246, 0.08);

  --color-accent:      #2563EB;
  --color-accent-dim:  rgba(37, 99, 235, 0.1);
  --color-accent-glow: rgba(37, 99, 235, 0.05);
  --color-cyan:        #0891B2;
  --color-cyan-dim:    rgba(8, 145, 178, 0.1);

  --color-text:        #1E293B;
  --color-text-muted:  #475569;
  --color-text-faint:  #94A3B8;
  --color-text-accent: #1D4ED8;
  --color-heading:     #0F172A;
}

[data-theme="light"] body {
  background-color: var(--color-bg);
}

[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.94);
  border-bottom-color: rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .hero {
  background: var(--color-bg);
}

[data-theme="light"] .hero-grid-overlay {
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
}

[data-theme="light"] .hero-scan-line {
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: #F8FAFC;
  color: var(--color-text);
}

[data-theme="light"] .form-group input::placeholder,
[data-theme="light"] .form-group textarea::placeholder {
  color: var(--color-text-faint);
}

[data-theme="light"] .nav-menu a {
  color: var(--color-text-muted);
}

[data-theme="light"] .nav-menu a:hover {
  color: var(--color-heading);
}

[data-theme="light"] .btn-ghost {
  color: var(--color-accent);
  border-color: rgba(37, 99, 235, 0.25);
}

[data-theme="light"] .toggle-bar {
  background: var(--color-text-muted);
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

input, textarea, select {
  font: inherit;
}

abbr[title] {
  text-decoration: none;
  color: var(--color-accent);
}

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

/* ============================================================
   TYPOGRAPHY
============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-heading);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); font-weight: 600; }

p {
  color: var(--color-text);
  font-size: 0.9875rem;
  line-height: 1.75;
}

/* ============================================================
   LAYOUT UTILITIES
============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
  opacity: 0.8;
}

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.75rem 1.625rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #2563EB;
  border-color: #2563EB;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: rgba(96, 165, 250, 0.35);
  background: var(--color-accent-glow);
  transform: translateY(-1px);
}

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

/* ============================================================
   TAGS
============================================================ */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-dim);
  color: var(--color-text-accent);
  border: 1px solid rgba(59, 130, 246, 0.2);
  white-space: nowrap;
}

/* ============================================================
   NAVIGATION
============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 24, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 64px;
  gap: var(--space-xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

.logo-mark {
  width: 34px;
  height: 34px;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-heading);
  line-height: 1;
}

.logo-text em {
  font-style: normal;
  color: var(--color-text-muted);
  font-weight: 400;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-menu a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--color-heading);
}

.nav-menu .nav-cta {
  font-size: 0.825rem;
  font-weight: 500;
  padding: 0.5rem 1.125rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-menu .nav-cta:hover {
  background: #2563EB;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-muted);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* ============================================================
   THEME TOGGLE BUTTON
============================================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--transition-base),
              background var(--transition-base),
              color var(--transition-base),
              transform var(--transition-fast);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: rgba(96, 165, 250, 0.3);
  background: var(--color-accent-glow);
  color: var(--color-accent);
  transform: scale(1.05);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.theme-icon {
  width: 16px;
  height: 16px;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.theme-icon svg {
  width: 16px;
  height: 16px;
}

/* Dark mode: show moon, hide sun */
[data-theme="dark"] .theme-icon-moon,
:root:not([data-theme="light"]) .theme-icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .theme-icon-sun,
:root:not([data-theme="light"]) .theme-icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

/* Light mode: show sun, hide moon */
[data-theme="light"] .theme-icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

[data-theme="light"] .theme-icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle {
  color: var(--color-text-muted);
  border-color: rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .theme-toggle:hover {
  color: var(--color-accent);
  border-color: rgba(37, 99, 235, 0.4);
  background: var(--color-accent-glow);
}

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-5xl) 0;
  overflow: hidden;
  background: var(--color-bg);
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-scan-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  animation: scanDown 6s linear infinite;
  opacity: 0.3;
  pointer-events: none;
}

@keyframes scanDown {
  0%   { top: 0; opacity: 0; }
  5%   { opacity: 0.3; }
  95%  { opacity: 0.3; }
  100% { top: 100%; opacity: 0; }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 700px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cyan);
  background: var(--color-cyan-dim);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xl);
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  margin-bottom: var(--space-xl);
  letter-spacing: -0.03em;
}

.headline-accent {
  color: var(--color-accent);
  display: block;
}

.hero-subtext {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--color-heading);
  line-height: 1;
  letter-spacing: -0.03em;
}

.stat-number sup {
  font-size: 0.75em;
  color: var(--color-accent);
  vertical-align: super;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

/* Hero Visual */
.hero-visual {
  flex-shrink: 0;
}

.hex-frame {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hex-inner {
  width: 140px;
  height: 140px;
  border: 1.5px solid rgba(59, 130, 246, 0.35);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08), transparent 70%);
  position: relative;
  z-index: 2;
}

.shield-icon {
  width: 72px;
  height: 72px;
  color: var(--color-accent);
  opacity: 0.85;
}

.hex-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(59, 130, 246, 0.12);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hex-ring-1 {
  width: 180px;
  height: 180px;
  animation: ringPulse 4s ease-in-out infinite;
}

.hex-ring-2 {
  width: 220px;
  height: 220px;
  animation: ringPulse 4s ease-in-out infinite 1.5s;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50%       { opacity: 0.15; transform: translate(-50%, -50%) scale(1.05); }
}

/* Hero Scroll Hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.scroll-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-border), transparent);
  animation: scrollBlink 2s ease-in-out infinite;
}

@keyframes scrollBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ============================================================
   SECTION SHARED
============================================================ */
.section-about,
.section-services,
.section-differentiator,
.section-leadership,
.section-industries,
.section-contact {
  padding: var(--space-5xl) 0;
}

.section-about       { background: var(--color-bg-2); }
.section-services    { background: var(--color-bg); }
.section-differentiator { background: var(--color-bg-2); }
.section-leadership  { background: var(--color-bg); }
.section-industries  { background: var(--color-bg-2); }
.section-contact     { background: var(--color-bg); }

/* ============================================================
   ABOUT
============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-4xl);
  align-items: start;
  margin-top: var(--space-2xl);
}

.about-grid h2 {
  margin-bottom: var(--space-xl);
}

.about-content p + p {
  margin-top: var(--space-lg);
}

.about-credentials {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.credential-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-2);
}

.credential-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.credential-icon svg {
  width: 20px;
  height: 20px;
}

.credential-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}

.credential-sub {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.credential-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.credential-list li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.cred-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  opacity: 0.7;
}

/* ============================================================
   SERVICES
============================================================ */
.section-services h2 {
  margin-bottom: var(--space-md);
}

.section-intro {
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: var(--space-3xl);
  font-size: 0.9875rem;
}

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

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--transition-base), background var(--transition-base);
  position: relative;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  border-color: rgba(59, 130, 246, 0.25);
  background: var(--color-surface-2);
}

.service-card:hover::before {
  opacity: 1;
}

.service-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  opacity: 0.6;
  margin-bottom: var(--space-md);
}

.service-card h3 {
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
  line-height: 1.3;
}

.service-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* ============================================================
   DIFFERENTIATOR
============================================================ */
.diff-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--space-4xl);
  margin-bottom: var(--space-3xl);
  align-items: start;
}

.diff-intro h2 {
  margin-bottom: var(--space-lg);
}

.diff-intro p + p {
  margin-top: var(--space-md);
  color: var(--color-text-muted);
}

.diff-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.pillar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.pillar-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.pillar-icon svg {
  width: 18px;
  height: 18px;
}

.pillar h3 {
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.pillar p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.relevance-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-2xl);
  align-items: start;
}

.relevance-divider {
  width: 1px;
  background: var(--color-border);
  min-height: 80px;
  align-self: stretch;
}

.relevance-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-accent);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.relevance-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   LEADERSHIP
============================================================ */
.section-leadership h2 {
  margin-bottom: var(--space-2xl);
}

.leader-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3xl);
  align-items: start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.leader-avatar {
  width: 160px;
  flex-shrink: 0;
}

.avatar-placeholder {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-lg);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-faint);
}

.avatar-placeholder svg {
  width: 72px;
  height: 72px;
  opacity: 0.5;
}

.leader-name-block {
  margin-bottom: var(--space-lg);
}

.leader-info h3 {
  font-size: 1.625rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.leader-title {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.leader-bio {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.leader-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ============================================================
   INDUSTRIES
============================================================ */
.section-industries h2 {
  margin-bottom: var(--space-2xl);
}

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

.industry-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.industry-card:hover {
  border-color: rgba(59, 130, 246, 0.2);
  background: var(--color-surface-2);
}

.industry-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.industry-icon svg {
  width: 20px;
  height: 20px;
}

.industry-card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

.industry-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   CONTACT / CONSULTATION
============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--space-4xl);
  align-items: start;
  margin-top: var(--space-2xl);
}

.contact-intro h2 {
  margin-bottom: var(--space-lg);
}

.contact-intro > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  font-size: 0.9375rem;
}

.confidentiality-note {
  display: flex;
  gap: var(--space-md);
  background: var(--color-surface);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.conf-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cyan);
  flex-shrink: 0;
}

.conf-icon svg {
  width: 20px;
  height: 20px;
}

.confidentiality-note strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--color-heading);
  margin-bottom: 0.4rem;
}

.confidentiality-note p {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-item {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-label {
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.contact-link {
  color: var(--color-text-accent);
  transition: color var(--transition-fast);
}

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

/* Contact Form */
.contact-form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

.form-group input,
.form-group textarea {
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.9rem;
  color: var(--color-text);
  font-size: 0.9rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
  font-size: 0.875rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  font-size: 0.77rem;
  color: var(--color-text-faint);
  text-align: center;
  line-height: 1.55;
}

/* ============================================================
   FOOTER
============================================================ */
.site-footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border-2);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-2);
  margin-bottom: var(--space-xl);
}

.footer-logo {
  margin-bottom: var(--space-lg);
  display: inline-flex;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-faint);
  line-height: 1.65;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.footer-nav-heading {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-md);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.copyright {
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-faint);
  opacity: 0.6;
}

/* ============================================================
   RESPONSIVE — TABLET (max 1024px)
============================================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .diff-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .relevance-strip {
    grid-template-columns: 1fr;
  }

  .relevance-divider {
    width: auto;
    height: 1px;
    min-height: auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

/* ============================================================
   RESPONSIVE — MOBILE (max 768px)
============================================================ */
@media (max-width: 768px) {
  :root {
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
  }

  /* Nav */
  .nav-menu {
    display: none;
    position: fixed;
    inset: 64px 0 0 0;
    background: rgba(9, 13, 24, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    gap: 0;
    padding: var(--space-xl) var(--container-pad);
    border-top: 1px solid var(--color-border-2);
    z-index: 99;
  }

  [data-theme="light"] .nav-menu {
    background: rgba(248, 250, 252, 0.98);
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu li {
    border-bottom: 1px solid var(--color-border-2);
  }

  .nav-menu a {
    display: block;
    padding: var(--space-lg) 0;
    font-size: 1rem;
    color: var(--color-text-muted);
  }

  .nav-menu .nav-cta {
    margin-top: var(--space-md);
    text-align: center;
    display: block;
    padding: 0.75rem;
  }

  .nav-toggle {
    display: flex;
  }

  /* Theme toggle always visible — adjust order on mobile */
  .theme-toggle {
    order: 2;
  }

  .nav-toggle {
    order: 3;
  }

  /* Toggle animation */
  .nav-toggle.is-active .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-active .toggle-bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-active .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Sections */
  .services-grid,
  .industries-grid {
    grid-template-columns: 1fr;
  }

  .diff-pillars {
    grid-template-columns: 1fr;
  }

  .leader-card {
    grid-template-columns: 1fr;
  }

  .leader-avatar {
    width: 100%;
    max-width: 120px;
  }

  .avatar-placeholder {
    width: 120px;
    height: 120px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stats {
    gap: var(--space-lg);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    text-align: center;
    justify-content: center;
  }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (max 480px)
============================================================ */
@media (max-width: 480px) {
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }

  .footer-nav {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-md);
  }
}

/* ============================================================
   PRINT STYLES
============================================================ */
@media print {
  .site-header,
  .hero-scroll-hint,
  .nav-toggle,
  .hero-visual {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }
}

/* ============================================================
   FOOTER CREDIT & NAS LINK (additions)
============================================================ */
.footer-credit {
  font-size: 0.75rem;
  color: var(--color-text-faint);
  opacity: 0.55;
  margin-top: 0.125rem;
}

.footer-credit a {
  color: var(--color-text-faint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.footer-credit a:hover {
  color: var(--color-text-muted);
  border-bottom-color: var(--color-border);
}

/* NAS link — barely visible single dot, accessible on focus */
.nas-link {
  display: inline-block;
  color: rgba(71, 85, 105, 0.18);
  font-size: 0.55rem;
  line-height: 1;
  text-decoration: none;
  opacity: 1;
  cursor: default;
  user-select: none;
  letter-spacing: 0;
  margin-top: 0.375rem;
  -webkit-user-select: none;
  transition: color 600ms ease, opacity 600ms ease;
}

.nas-link:hover {
  color: rgba(71, 85, 105, 0.5);
  cursor: pointer;
}

.nas-link:focus-visible {
  outline: 1px solid rgba(59,130,246,0.3);
  border-radius: 2px;
  color: var(--color-text-faint);
  opacity: 0.8;
}
