/* ============================================================
   EmbeddedFirmwareHelper — Complete Design System
   ============================================================ */

/* === 1. DESIGN TOKENS === */
:root {
  /* Brand */
  --clr-primary:        #0D47A1;
  --clr-primary-light:  #1565C0;
  --clr-primary-dark:   #0A2E6E;
  --clr-accent:         #00BCD4;
  --clr-accent-dark:    #0097A7;
  --clr-accent-glow:    rgba(0, 188, 212, 0.12);

  /* Dark surfaces */
  --clr-dark:           #0A0E1A;
  --clr-dark-2:         #111827;
  --clr-dark-3:         #1F2937;
  --clr-dark-4:         #374151;

  /* Light surfaces */
  --clr-bg:             #FFFFFF;
  --clr-bg-alt:         #F8F9FC;
  --clr-bg-subtle:      #F1F5FD;

  /* Text */
  --clr-text:           #0F1729;
  --clr-text-2:         #374151;
  --clr-text-muted:     #6B7280;
  --clr-text-light:     #9CA3AF;
  --clr-text-white:     #FFFFFF;
  --clr-text-white-dim: rgba(255,255,255,0.65);
  --clr-text-white-faint: rgba(255,255,255,0.4);

  /* Borders */
  --clr-border:         #E5E7EB;
  --clr-border-subtle:  #F3F4F6;
  --clr-border-dark:    #1F2937;
  --clr-border-dark-2:  #374151;

  /* Status */
  --clr-success:        #10B981;
  --clr-warning:        #F59E0B;
  --clr-error:          #EF4444;

  /* Typography */
  --font:   -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Courier New", Courier, monospace;

  /* Font Scale */
  --text-xs:   0.6875rem;
  --text-sm:   0.8125rem;
  --text-base: 0.9375rem;
  --text-md:   1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Spacing (8px grid) */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Border Radius */
  --r-sm:   4px;
  --r:      8px;
  --r-md:   10px;
  --r-lg:   14px;
  --r-xl:   20px;
  --r-full: 9999px;

  /* Shadows */
  --sh-xs:   0 1px 2px rgba(0,0,0,0.04);
  --sh-sm:   0 1px 4px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --sh:      0 4px 16px rgba(0,0,0,0.08);
  --sh-md:   0 8px 24px rgba(0,0,0,0.10);
  --sh-lg:   0 16px 48px rgba(0,0,0,0.14);
  --sh-xl:   0 24px 64px rgba(0,0,0,0.18);
  --sh-blue: 0 8px 32px rgba(13,71,161,0.28);

  /* Nav */
  --nav-h: 64px;
  --max-w: 1200px;

  /* Transitions */
  --tr:     0.18s ease;
  --tr-med: 0.28s ease;
  --tr-slow: 0.4s cubic-bezier(0.4,0,0.2,1);
}

/* === 2. RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* === 3. BASE === */
body {
  font-family: var(--font);
  font-size: var(--text-base);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* === 4. LAYOUT === */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section { padding: var(--sp-24) 0; }
.section-alt { background: var(--clr-bg-alt); }
.section-dark { background: var(--clr-dark); }

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-3);
}

.section-label-dark { color: var(--clr-accent); }

.section-heading {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1.15;
  letter-spacing: 0;
  margin-bottom: var(--sp-4);
}

.section-heading-white { color: var(--clr-text-white); }

.section-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  line-height: 1.7;
  max-width: 580px;
}

.section-sub-white { color: var(--clr-text-white-dim); }

.section-header { margin-bottom: var(--sp-12); }
.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--sp-12);
  flex-wrap: wrap;
  gap: var(--sp-4);
}

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

/* === 5. TYPOGRAPHY === */
.text-accent { color: var(--clr-accent); }
.text-primary { color: var(--clr-primary); }
.text-muted { color: var(--clr-text-muted); }
.text-white { color: var(--clr-text-white); }
.text-mono { font-family: var(--font-mono); }

/* === 6. BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 11px 24px;
  border-radius: var(--r);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--tr);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-text-white);
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-light);
  border-color: var(--clr-primary-light);
  box-shadow: var(--sh-blue);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--clr-accent);
  color: var(--clr-dark);
  border-color: var(--clr-accent);
  font-weight: 700;
}
.btn-accent:hover {
  background: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,188,212,0.32);
}

.btn-outline {
  background: transparent;
  color: var(--clr-text-white);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.45);
}

.btn-outline-dark {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-border);
}
.btn-outline-dark:hover {
  border-color: var(--clr-primary);
  background: var(--clr-bg-subtle);
}

.btn-sm { padding: 8px 16px; font-size: var(--text-sm); }
.btn-lg { padding: 14px 32px; font-size: var(--text-md); }

/* === 7. BADGES & TAGS === */
.badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--r-full);
  padding: 3px 10px;
  font-family: var(--font-mono);
}

.badge-primary { background: var(--clr-bg-subtle); color: var(--clr-primary); }
.badge-accent   { background: var(--clr-accent-glow); color: var(--clr-accent-dark); }
.badge-dark     { background: var(--clr-dark-3); color: var(--clr-text-white-dim); }
.badge-success  { background: rgba(16,185,129,0.1); color: #059669; }
.badge-warning  { background: rgba(245,158,11,0.1); color: #B45309; }

.tag {
  display: inline-block;
  background: var(--clr-bg-subtle);
  color: var(--clr-primary);
  border-radius: var(--r-sm);
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.tag-dark { background: var(--clr-dark-3); color: var(--clr-text-white-dim); }

/* === 8. NAVBAR === */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 999;
  transition: background var(--tr-med), box-shadow var(--tr-med), border-bottom var(--tr-med);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border-dark);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.96);
  box-shadow: 0 1px 24px rgba(0,0,0,0.24);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  max-width: 42px;
  object-fit: contain;
}

.nav-logo-text {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--clr-text-white);
  letter-spacing: 0;
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: var(--r);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: color var(--tr), background var(--tr);
  position: relative;
}

.nav-link:hover {
  color: var(--clr-text-white);
  background: rgba(255,255,255,0.06);
}

.nav-link.active {
  color: var(--clr-text-white);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px; right: 14px;
  height: 2px;
  border-radius: 1px;
  background: var(--clr-accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--r);
  background: var(--clr-primary);
  color: var(--clr-text-white) !important;
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background var(--tr), box-shadow var(--tr), transform var(--tr);
  margin-left: var(--sp-3);
}

.nav-cta:hover {
  background: var(--clr-primary-light);
  box-shadow: var(--sh-blue);
  transform: translateY(-1px);
}

.nav-cta::after { display: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
  border-radius: var(--r);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: rgba(255,255,255,0.75);
  border-radius: 1px;
  transition: all var(--tr);
}

/* === 9. FOOTER === */
.footer {
  background: var(--clr-dark);
  border-top: 1px solid var(--clr-border-dark);
  padding: var(--sp-16) 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--sp-16);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid var(--clr-border-dark);
}

.footer-logo-img {
  height: 54px;
  width: auto;
  max-width: 72px;
  object-fit: contain;
  margin-bottom: var(--sp-4);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
  line-height: 1.65;
  max-width: 220px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-8);
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-white);
  margin-bottom: var(--sp-4);
  font-family: var(--font-mono);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
  padding: var(--sp-1) 0;
  transition: color var(--tr);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) 0;
}

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

/* ============================================================
   HOME PAGE
   ============================================================ */

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--clr-dark);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-radial {
  position: absolute;
  top: -200px; right: -100px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(13,71,161,0.35) 0%, transparent 65%);
  pointer-events: none;
}

.hero-radial-2 {
  position: absolute;
  bottom: -100px; left: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,188,212,0.08) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--sp-12);
  padding: var(--sp-16) 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(0,188,212,0.1);
  border: 1px solid rgba(0,188,212,0.2);
  border-radius: var(--r-full);
  padding: 5px 14px 5px 10px;
  margin-bottom: var(--sp-5);
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-eyebrow-text {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  font-family: var(--font-mono);
}

.hero-title {
  font-size: var(--text-6xl);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--clr-text-white);
  margin-bottom: var(--sp-5);
}

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

.hero-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-white-dim);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: var(--sp-8);
}

.hero-actions {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--sp-8);
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat-value {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-text-white);
  font-family: var(--font-mono);
  line-height: 1;
}

.hero-stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--clr-text-white-faint);
  margin-top: var(--sp-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

.hero-svg {
  width: 100%;
  max-width: 520px;
  opacity: 0.9;
}

/* === TRUST BAR === */
.trust-bar {
  background: var(--clr-dark-2);
  border-top: 1px solid var(--clr-border-dark);
  border-bottom: 1px solid var(--clr-border-dark);
  padding: var(--sp-8) 0;
}

.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: var(--sp-6);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.trust-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-text-white);
  font-family: var(--font-mono);
  line-height: 1;
}

.trust-label {
  font-size: var(--text-xs);
  color: var(--clr-text-white-faint);
  margin-top: var(--sp-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.trust-divider {
  width: 1px;
  height: 32px;
  background: var(--clr-border-dark);
}

/* === ABOUT === */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}

.about-content .section-heading { margin-bottom: var(--sp-5); }

.about-body {
  font-size: var(--text-md);
  color: var(--clr-text-2);
  line-height: 1.75;
  margin-bottom: var(--sp-6);
}

.about-points {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.about-point {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: var(--text-base);
  color: var(--clr-text-2);
}

.about-point-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--clr-accent-glow);
  border: 1px solid rgba(0,188,212,0.2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  font-size: 10px;
  color: var(--clr-accent-dark);
}

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-bg-alt);
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  padding: var(--sp-8);
  aspect-ratio: 4/3;
}

/* === EXPERTISE === */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.expertise-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
}

.expertise-card:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--sh-md);
  transform: translateY(-2px);
}

.expertise-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--clr-bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  font-size: 20px;
  border: 1px solid var(--clr-border);
}

.expertise-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.expertise-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* === SERVICES PREVIEW === */
.services-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
}

.svc-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6) var(--sp-8);
  display: flex;
  gap: var(--sp-5);
  align-items: flex-start;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
}

.svc-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--sh);
  transform: translateX(3px);
}

.svc-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r);
  background: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.svc-card-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.svc-card-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* === PRODUCTS PREVIEW === */
.products-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.prod-preview-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  display: flex;
  flex-direction: column;
}

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

.prod-preview-tag {
  margin-bottom: var(--sp-4);
}

.prod-preview-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-3);
  line-height: 1.3;
}

.prod-preview-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
  flex: 1;
}

/* === CTA SECTION === */
.cta-section {
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(0,188,212,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--clr-text-white);
  letter-spacing: 0;
  margin-bottom: var(--sp-4);
}

.cta-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-white-dim);
  margin-bottom: var(--sp-8);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-actions { display: flex; gap: var(--sp-3); justify-content: center; }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
  background: var(--clr-dark);
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--clr-border-dark);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-header-inner { position: relative; z-index: 1; }

.page-header-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-3);
}

.page-header-title {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--clr-text-white);
  letter-spacing: 0;
  margin-bottom: var(--sp-4);
  line-height: 1.1;
}

.page-header-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-white-dim);
  max-width: 540px;
  line-height: 1.7;
}

/* ============================================================
   BLOGS PAGE
   ============================================================ */
.blog-shell {
  display: grid;
  grid-template-columns: 256px 1fr;
  min-height: calc(100vh - var(--nav-h));
  align-items: start;
}

/* Blog Sidebar */
.blog-sidebar {
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  background: var(--clr-dark);
  border-right: 1px solid var(--clr-border-dark);
  padding: var(--sp-5) 0;
  display: flex;
  flex-direction: column;
}

.blog-sidebar::-webkit-scrollbar { width: 3px; }
.blog-sidebar::-webkit-scrollbar-thumb { background: var(--clr-border-dark-2); border-radius: 2px; }

.sidebar-search-wrap {
  padding: 0 var(--sp-4) var(--sp-4);
  border-bottom: 1px solid var(--clr-border-dark);
  margin-bottom: var(--sp-3);
}

.sidebar-search {
  position: relative;
}

.sidebar-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-text-white-faint);
  font-size: 13px;
  pointer-events: none;
}

.sidebar-search-input {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--r);
  color: var(--clr-text-white);
  font-size: var(--text-sm);
  padding: 8px 12px 8px 32px;
  outline: none;
  transition: border-color var(--tr), background var(--tr);
}

.sidebar-search-input::placeholder { color: var(--clr-text-white-faint); }

.sidebar-search-input:focus {
  border-color: var(--clr-accent);
  background: rgba(0,188,212,0.05);
}

.sidebar-section-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-text-white-faint);
  padding: 0 var(--sp-4) var(--sp-2);
  font-family: var(--font-mono);
}

.sidebar-home-btn {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 8px var(--sp-4);
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
  cursor: pointer;
  transition: color var(--tr), background var(--tr);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font);
  margin-bottom: var(--sp-2);
}

.sidebar-home-btn:hover {
  color: var(--clr-text-white);
  background: rgba(255,255,255,0.04);
}

/* Category tree */
.cat-folder { border: none; }

.cat-folder-header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 7px var(--sp-4);
  cursor: pointer;
  color: rgba(255,255,255,0.6);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--tr), background var(--tr);
  border-left: 2px solid transparent;
  user-select: none;
}

.cat-folder-header:hover {
  color: var(--clr-text-white);
  background: rgba(255,255,255,0.04);
}

.cat-folder-header.active {
  color: var(--clr-accent);
  border-left-color: var(--clr-accent);
  background: rgba(0,188,212,0.06);
}

.cat-arrow {
  font-size: 9px;
  color: rgba(255,255,255,0.3);
  transition: transform var(--tr);
  width: 10px;
  flex-shrink: 0;
}

.cat-folder.open .cat-arrow { transform: rotate(90deg); }

.cat-icon-emoji { font-size: 13px; }

.cat-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.cat-count {
  font-size: 10px;
  color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.05);
  border-radius: 10px;
  padding: 1px 6px;
  font-family: var(--font-mono);
}

.cat-children {
  display: none;
  overflow: hidden;
}

.cat-folder.open .cat-children {
  display: block;
  animation: slideDown 0.15s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.cat-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 5px var(--sp-4) 5px 32px;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  transition: color var(--tr), background var(--tr);
  border-left: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-item:hover {
  color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.03);
}

.cat-item.active {
  color: var(--clr-accent);
  background: rgba(0,188,212,0.05);
  border-left-color: rgba(0,188,212,0.4);
}

/* Blog Content Area */
.blog-content {
  padding: var(--sp-8) var(--sp-8);
  min-height: calc(100vh - var(--nav-h));
  background: var(--clr-bg-alt);
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Blog home state */
.blog-home-hero {
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-2) 100%);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-10);
  margin-bottom: var(--sp-8);
  border: 1px solid var(--clr-border-dark);
  position: relative;
  overflow: hidden;
}

.blog-home-hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,188,212,0.12) 0%, transparent 70%);
}

.blog-home-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--clr-text-white);
  margin-bottom: var(--sp-2);
}

.blog-home-sub {
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
}

.blog-section-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--clr-border);
}

.popular-topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-8);
}

.popular-topic {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-primary);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 7px 10px;
  transition: border-color var(--tr), background var(--tr), color var(--tr);
}

.popular-topic:hover {
  background: var(--clr-bg-subtle);
  border-color: var(--clr-primary);
  color: var(--clr-primary-dark);
}

/* Blog list / cards */
.blog-list { display: flex; flex-direction: column; gap: var(--sp-3); }

.blog-card {
  display: block;
  color: inherit;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5) var(--sp-6);
  cursor: pointer;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
}

.blog-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--sh);
  transform: translateX(2px);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-2);
}

.blog-card-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.4;
  margin-bottom: var(--sp-2);
}

.blog-card-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: var(--sp-3);
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-card-tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

.blog-read-hint {
  font-size: var(--text-xs);
  color: var(--clr-primary);
  font-family: var(--font-mono);
  opacity: 0;
  transition: opacity var(--tr);
}

.blog-card:hover .blog-read-hint { opacity: 1; }

/* Article view */
.article-back {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  cursor: pointer;
  border: 1px solid var(--clr-border);
  padding: 7px 14px;
  border-radius: var(--r);
  transition: border-color var(--tr), color var(--tr), background var(--tr);
  background: var(--clr-bg);
  margin-bottom: var(--sp-6);
  font-family: var(--font);
  outline: none;
}

.article-back:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent-dark);
  background: var(--clr-accent-glow);
}

.article-header {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  margin-bottom: var(--sp-6);
}

.article-cat-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-bg-subtle);
  border-radius: var(--r-sm);
  padding: 3px 9px;
  font-family: var(--font-mono);
  margin-bottom: var(--sp-4);
}

.article-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: 0;
  line-height: 1.25;
  margin-bottom: var(--sp-4);
}

.article-desc {
  font-size: var(--text-md);
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-5);
}

.article-tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.article-meta span,
.article-meta time {
  background: var(--clr-bg-subtle);
  border-radius: var(--r-sm);
  padding: 2px 8px;
}

/* Article body typography */
.article-body {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  font-size: var(--text-md);
  line-height: 1.8;
  color: var(--clr-text-2);
}

.article-body h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-text);
  margin: var(--sp-8) 0 var(--sp-3);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--clr-border);
  letter-spacing: 0;
}

.article-body h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--clr-text);
  margin: var(--sp-6) 0 var(--sp-2);
}

.article-body p { margin-bottom: var(--sp-4); }

.article-body ul, .article-body ol {
  padding-left: var(--sp-5);
  margin-bottom: var(--sp-4);
}

.article-body li { margin-bottom: var(--sp-2); }

.article-body code {
  background: var(--clr-bg-subtle);
  color: var(--clr-primary);
  border-radius: var(--r-sm);
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.article-body pre {
  background: var(--clr-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-6);
  overflow-x: auto;
  margin: var(--sp-4) 0 var(--sp-6);
}

.article-body pre code {
  background: none;
  color: #cdd6f4;
  padding: 0;
  font-size: var(--text-sm);
  line-height: 1.75;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--sp-4) 0 var(--sp-6);
  font-size: var(--text-sm);
}

.article-body th {
  background: var(--clr-bg-subtle);
  color: var(--clr-text);
  font-weight: 600;
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--clr-border);
}

.article-body td {
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-2);
}

.article-body tr:hover td { background: var(--clr-bg-alt); }
.article-body strong { font-weight: 600; color: var(--clr-text); }

.article-footer-panel {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  margin-top: var(--sp-6);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-6);
}

.related-article-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.related-article-link {
  display: flex;
  flex-direction: column;
  color: var(--clr-primary);
  font-weight: 600;
  line-height: 1.4;
}

.related-article-link small {
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
}

/* Breadcrumb */
.blog-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}

.blog-breadcrumb .bc-link {
  color: var(--clr-primary);
  cursor: pointer;
}

.blog-breadcrumb .bc-link:hover { color: var(--clr-accent-dark); }
.blog-breadcrumb .bc-sep { color: var(--clr-border); }

/* Search results */
.search-header {
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--clr-border);
}

.search-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-text);
}

.search-title span { color: var(--clr-primary); font-family: var(--font-mono); }

.search-no-results {
  text-align: center;
  padding: var(--sp-20) 0;
  color: var(--clr-text-muted);
}

.search-no-results .empty-icon { font-size: 40px; margin-bottom: var(--sp-4); }

mark.hl {
  background: #FFF176;
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

/* ============================================================
   PRODUCTS PAGE
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
  align-items: stretch;
}

.product-card {
  background: var(--clr-bg);
  border: 1px solid #DDE4EE;
  border-radius: var(--r);
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  position: relative;
  overflow: hidden;
  box-shadow: var(--sh-xs);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--tr-med);
}

.product-card:hover {
  border-color: rgba(13,71,161,0.35);
  box-shadow: 0 12px 28px rgba(15,23,41,0.08);
  transform: translateY(-2px);
}

.product-card:hover::before { transform: scaleX(1); }

.product-card-header {
  padding: var(--sp-6) var(--sp-6) var(--sp-4);
  border-bottom: 1px solid var(--clr-border-subtle);
}

.product-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.product-status {
  flex-shrink: 0;
}

.product-status .badge {
  border-radius: var(--r-sm);
  padding: 4px 8px;
  letter-spacing: 0.04em;
}

.product-category {
  color: var(--clr-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
  font-family: var(--font-mono);
}

.product-title {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1.25;
  margin-bottom: var(--sp-2);
}

.product-tagline {
  font-size: var(--text-sm);
  color: var(--clr-text-2);
  line-height: 1.45;
}

.product-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-2);
  line-height: 1.65;
  padding: var(--sp-5) var(--sp-6) 0;
  margin-bottom: var(--sp-5);
  flex: none;
}

.product-features {
  padding: 0 var(--sp-6);
  margin-bottom: var(--sp-6);
}

.product-features-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-4);
}

.product-feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.product-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: var(--text-sm);
  color: var(--clr-text-2);
  line-height: 1.45;
}

.feature-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(16,185,129,0.1);
  color: var(--clr-success);
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  margin-top: 1px;
  flex-shrink: 0;
}

.product-cta {
  margin-top: auto;
  padding: var(--sp-4) var(--sp-6);
  background: var(--clr-bg-alt);
  border-top: 1px solid var(--clr-border-subtle);
}

.product-cta .btn {
  width: 100%;
  justify-content: center;
  background: var(--clr-bg);
  border-color: #D5DEEA;
  font-weight: 700;
}

.product-cta .btn:hover {
  background: var(--clr-bg-subtle);
  border-color: var(--clr-primary);
}

/* ============================================================
   SERVICES PAGE
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

.service-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-7) var(--sp-8);
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  position: relative;
}

.service-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--sh-md);
  transform: translateY(-2px);
}

.service-card-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: var(--sp-5);
  transition: background var(--tr), border-color var(--tr);
}

.service-card:hover .service-card-icon-wrap {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
}

.service-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-3);
}

.service-card-desc {
  font-size: var(--text-base);
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}

.service-value {
  font-size: var(--text-sm);
  color: var(--clr-primary);
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--clr-border-subtle);
}

.service-value-icon { flex-shrink: 0; margin-top: 1px; }

/* Why EFH section */
.why-efh {
  background: var(--clr-dark);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
}

.why-item {
  text-align: center;
}

.why-icon {
  font-size: 32px;
  margin-bottom: var(--sp-4);
}

.why-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text-white);
  margin-bottom: var(--sp-2);
}

.why-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
  line-height: 1.6;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-shell {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.contact-info-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  position: sticky;
  top: calc(var(--nav-h) + var(--sp-6));
}

.contact-info-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.contact-info-sub {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: var(--sp-6);
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

.contact-info-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
}

.contact-info-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r);
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-1);
}

.contact-info-value {
  font-size: var(--text-sm);
  color: var(--clr-text);
  font-weight: 500;
}

.contact-trust {
  background: var(--clr-bg-subtle);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-5);
}

.contact-trust-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-3);
}

.contact-trust-items {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.contact-trust-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--clr-text-2);
}

.trust-check { color: var(--clr-success); font-size: 13px; }

/* Contact Form */
.contact-form-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
}

.form-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.form-sub {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-7);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r);
  color: var(--clr-text);
  font-size: var(--text-base);
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--tr), box-shadow var(--tr);
  width: 100%;
  font-family: var(--font);
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(13,71,161,0.08);
}

.form-input.error,
.form-textarea.error { border-color: var(--clr-error); }

.form-select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%239CA3AF'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; padding-right: 36px; }

.form-textarea { resize: vertical; min-height: 140px; line-height: 1.6; }

.form-error-msg {
  font-size: var(--text-xs);
  color: var(--clr-error);
  display: none;
}

.form-error-msg.visible { display: block; }

.form-submit { margin-top: var(--sp-2); }

.form-success {
  display: none;
  text-align: center;
  padding: var(--sp-10);
}

.form-success.visible { display: block; }

.form-success-icon { font-size: 48px; margin-bottom: var(--sp-4); }
.form-success-title { font-size: var(--text-xl); font-weight: 700; color: var(--clr-text); margin-bottom: var(--sp-2); }
.form-success-sub { font-size: var(--text-base); color: var(--clr-text-muted); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #D1D5DB; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9CA3AF; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* ============================================================
   MONETIZATION COMPONENTS
   ============================================================ */

/* ── PRICING CARDS ─────────────────────────────────────────── */
.pricing-section { background: var(--clr-bg-alt); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  align-items: start;
}

.pricing-card {
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  position: relative;
  transition: box-shadow var(--tr), transform var(--tr);
}
.pricing-card:hover {
  box-shadow: var(--sh-lg);
  transform: translateY(-4px);
}

.pricing-popular {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(0,188,212,0.15), var(--sh-md);
  transform: translateY(-6px);
}

.pricing-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-accent);
  color: var(--clr-dark);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: var(--r-full);
  white-space: nowrap;
}

.pricing-tier {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-3);
}

.pricing-price {
  font-size: var(--text-5xl);
  font-weight: 900;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: var(--sp-4);
}
.pricing-period {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--clr-text-muted);
}

.pricing-desc {
  font-size: var(--text-base);
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin-bottom: var(--sp-6);
  min-height: 64px;
}

.pricing-features-list {
  list-style: none;
  margin-bottom: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.pricing-features-list li {
  font-size: var(--text-sm);
  color: var(--clr-text-2);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.btn-block {
  display: flex;
  justify-content: center;
  width: 100%;
}

.booking-cta-text {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-2);
}
.booking-cta-text strong { color: var(--clr-text); }

/* ── NEWSLETTER SECTION ────────────────────────────────────── */
.newsletter-section {
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
  padding: var(--sp-20) 0;
}

.newsletter-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.newsletter-heading {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--clr-text-white);
  line-height: 1.2;
  margin-bottom: var(--sp-3);
}

.newsletter-sub {
  font-size: var(--text-base);
  color: var(--clr-text-white-dim);
  line-height: 1.65;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.newsletter-input-row {
  display: flex;
  gap: var(--sp-3);
}

.newsletter-input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--r);
  border: 1.5px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: var(--clr-text-white);
  font-size: var(--text-base);
  outline: none;
  transition: border-color var(--tr), background var(--tr);
}
.newsletter-input::placeholder { color: rgba(255,255,255,0.4); }
.newsletter-input:focus {
  border-color: var(--clr-accent);
  background: rgba(255,255,255,0.12);
}

.newsletter-privacy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

.newsletter-success {
  display: none;
  align-items: center;
  gap: var(--sp-3);
  background: rgba(16,185,129,0.15);
  border: 1px solid rgba(16,185,129,0.4);
  border-radius: var(--r);
  padding: var(--sp-4);
  color: #6ee7b7;
  font-weight: 600;
}
.newsletter-success.visible { display: flex; }

/* ── GUMROAD / BUY BUTTONS ─────────────────────────────────── */
.product-buy-row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--clr-border);
  flex-wrap: wrap;
}

.product-price-tag {
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--clr-primary);
}

.btn-buy {
  background: #ff90e8;
  color: #000;
  border-color: #ff90e8;
  font-weight: 700;
  flex: 1;
  justify-content: center;
}
.btn-buy:hover {
  background: #ff6de0;
  border-color: #ff6de0;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,144,232,0.35);
}

.btn-consult-sm {
  font-size: var(--text-xs);
  padding: 7px 14px;
  color: var(--clr-text-muted);
  border-color: var(--clr-border);
  background: transparent;
}
.btn-consult-sm:hover {
  color: var(--clr-text);
  border-color: var(--clr-text-2);
}

/* ── ADSENSE / AD UNITS ────────────────────────────────────── */
.ad-unit-wrap {
  margin: var(--sp-8) 0;
  text-align: center;
  padding: var(--sp-4);
  background: var(--clr-bg-subtle);
  border-radius: var(--r);
  border: 1px dashed var(--clr-border);
}

.ad-unit-label {
  font-size: var(--text-xs);
  color: var(--clr-text-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
  font-family: var(--font-mono);
}

/* ── AFFILIATE TOOLS SECTION ───────────────────────────────── */
.affiliate-section { background: var(--clr-bg); }

.affiliate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.affiliate-card {
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5) var(--sp-6);
  transition: box-shadow var(--tr), transform var(--tr), border-color var(--tr);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  text-decoration: none;
  color: inherit;
}
.affiliate-card:hover {
  box-shadow: var(--sh-md);
  transform: translateY(-3px);
  border-color: var(--clr-accent);
}

.affiliate-card-icon {
  font-size: 1.75rem;
  margin-bottom: var(--sp-1);
}
.affiliate-card-name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--clr-text);
}
.affiliate-card-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.55;
  flex: 1;
}
.affiliate-card-type {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--clr-accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.affiliate-card-link {
  font-size: var(--text-sm);
  color: var(--clr-primary);
  font-weight: 600;
  margin-top: var(--sp-2);
}

/* ─── responsive ──── */
@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-popular { transform: none; }
  .newsletter-inner { grid-template-columns: 1fr; gap: var(--sp-8); }
  .affiliate-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .newsletter-input-row { flex-direction: column; }
  .affiliate-grid { grid-template-columns: 1fr; }
  .product-buy-row { flex-direction: column; align-items: stretch; }
}

/* ── INTERVIEW PAYWALL ─────────────────────────────────────── */
.paywall-banner {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dark) 100%);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  margin: var(--sp-8) 0;
  text-align: center;
  color: var(--clr-text-white);
}
.paywall-banner-title {
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: var(--sp-2);
}
.paywall-banner-sub {
  font-size: var(--text-sm);
  color: var(--clr-text-white-dim);
  margin-bottom: var(--sp-6);
}
.paywall-plans {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-6);
}
.paywall-plan {
  background: rgba(255,255,255,0.1);
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: var(--r-lg);
  padding: var(--sp-4) var(--sp-6);
  min-width: 140px;
  cursor: pointer;
  transition: all var(--tr);
}
.paywall-plan:hover,
.paywall-plan.selected {
  background: rgba(0,188,212,0.2);
  border-color: var(--clr-accent);
}
.paywall-plan-name {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-1);
}
.paywall-plan-price {
  font-size: var(--text-2xl);
  font-weight: 900;
}
.paywall-plan-period {
  font-size: var(--text-xs);
  color: var(--clr-text-white-dim);
}

@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-sub { margin: 0 auto var(--sp-8); }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { display: none; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .products-preview-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-shell { grid-template-columns: 1fr; }
  .contact-info-card { position: static; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer-links { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  :root { --text-6xl: 2.5rem; --text-5xl: 2.25rem; --text-4xl: 1.875rem; }
  .section { padding: var(--sp-16) 0; }
  .nav-menu { display: none; flex-direction: column; gap: 0; position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--clr-dark); border-top: 1px solid var(--clr-border-dark); padding: var(--sp-4); }
  .nav-menu.open { display: flex; animation: slideDown 0.2s ease; }
  .nav-link { padding: 12px 16px; border-radius: var(--r); }
  .nav-cta { margin-left: 0; margin-top: var(--sp-2); }
  .nav-toggle { display: flex; }
  .services-preview-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: 1fr; }
  .products-preview-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid-2 { grid-template-columns: 1fr; }
  .trust-divider { display: none; }
  .blog-shell { grid-template-columns: 1fr; }
  .blog-sidebar { display: none; }
  .blog-sidebar.mobile-open { display: flex; position: fixed; inset: 0; top: var(--nav-h); z-index: 500; height: auto; }
  .article-footer-panel { align-items: flex-start; flex-direction: column; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .cta-actions { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--sp-4); }
  .nav-logo-text { display: none; }
  .footer-links { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: var(--sp-4); }
}