/* ==========================================================================
   ZYLIX.AI - DESIGN SYSTEM & STYLESHEET
   Niche: Digital Infrastructure & High-Converting Websites for Electrical Contractors
   ========================================================================== */

:root {
  --bg-darkest: #060709;
  --bg-base: #0a0c10;
  --bg-surface: #10141d;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(24, 32, 50, 0.9);
  
  --electric-cyan: #00f0ff;
  --electric-blue: #0070f3;
  --electric-amber: #f59e0b;
  --electric-emerald: #10b981;
  --electric-rose: #f43f5e;
  
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.35);
  --glow-subtle: 0 0 15px rgba(0, 240, 255, 0.15);
  --glow-amber: 0 0 20px rgba(245, 158, 11, 0.3);
  
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 240, 255, 0.35);
  --border-hover: rgba(255, 255, 255, 0.18);
  
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-cyan: #38bdf8;
  
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-darkest);
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-darkest);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Ambient Background Canvas Elements */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 50% 10%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(0, 112, 243, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 15% 70%, rgba(245, 158, 11, 0.03) 0%, transparent 45%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.site-wrapper {
  position: relative;
  z-index: 1;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 860px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
}

p.lead {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: #cbd5e1;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.text-cyan {
  color: var(--electric-cyan);
}

.text-amber {
  color: var(--electric-amber);
}

.text-emerald {
  color: var(--electric-emerald);
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, var(--electric-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-amber {
  background: linear-gradient(135deg, #ffffff 40%, var(--electric-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  width: fit-content;
}

.badge-spark {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.3);
  color: var(--electric-cyan);
  box-shadow: var(--glow-subtle);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--electric-amber);
}

.badge-danger {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: var(--electric-rose);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--electric-emerald);
}

.badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-electric {
  background: linear-gradient(135deg, var(--electric-cyan), var(--electric-blue));
  color: #060709;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
}

.btn-electric:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0, 240, 255, 0.55);
  color: #000;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-glass);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  color: var(--electric-cyan);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Glass Panels & Cards */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.glass-panel:hover {
  border-color: var(--border-hover);
}

.glass-card-interactive {
  padding: 2rem;
}

.glass-card-interactive:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), var(--glow-subtle);
}

/* Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition-smooth);
}

.navbar.scrolled {
  padding: 0.75rem 0;
  background: rgba(8, 10, 14, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.logo-icon-box {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(0, 112, 243, 0.3));
  border: 1px solid var(--border-active);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--electric-cyan);
  box-shadow: var(--glow-subtle);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--electric-cyan);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 8px var(--electric-cyan);
}

.nav-actions {
  display: none;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 340px;
  height: 100vh;
  background: #090c12;
  border-left: 1px solid var(--border-glass);
  z-index: 1001;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.35s ease-in-out;
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8);
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.mobile-drawer-links .nav-link {
  font-size: 1.15rem;
}

/* Hero Section */
.hero-section {
  padding-top: clamp(8rem, 14vw, 11rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}

.hero-proof-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-glass);
}

.proof-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.proof-item svg {
  color: var(--electric-cyan);
}

/* Sections General */
.section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Pain Points / Problem Section */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.problem-card {
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  background: rgba(18, 22, 31, 0.5);
  border: 1px solid rgba(244, 63, 94, 0.15);
  position: relative;
}

.problem-card:hover {
  border-color: rgba(244, 63, 94, 0.35);
  background: rgba(24, 28, 40, 0.7);
}

.problem-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(244, 63, 94, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--electric-rose);
  margin-bottom: 1.5rem;
}

/* Interactive Filter Preview Component */
.filter-preview-box {
  margin-top: 3rem;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(16, 21, 32, 0.9), rgba(10, 13, 20, 0.95));
  border: 1px solid var(--border-active);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), var(--glow-subtle);
}

.filter-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.filter-column {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-glass);
}

.filter-column.bad-leads {
  border-color: rgba(244, 63, 94, 0.25);
}

.filter-column.good-leads {
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.03);
}

.filter-lead-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.lead-card-content {
  flex: 1;
}

.lead-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.lead-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Features Grid (The Signature Package) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

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

.feature-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--electric-cyan);
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.feature-list li svg {
  color: var(--electric-cyan);
  flex-shrink: 0;
}

/* Case Studies / Proof Showcase */
.case-study-hero-card {
  background: linear-gradient(135deg, rgba(16, 22, 35, 0.85), rgba(9, 12, 18, 0.95));
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3.5rem);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--glow-subtle);
  margin-bottom: 3.5rem;
}

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.stat-metric-pill {
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.stat-metric-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--electric-cyan);
  display: block;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-metric-label {
  font-size: 0.825rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.portfolio-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.portfolio-card {
  background: rgba(16, 20, 28, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: all var(--transition-fast);
}

.portfolio-card:hover {
  border-color: var(--border-hover);
  background: rgba(22, 28, 40, 0.8);
  transform: translateY(-3px);
}

.portfolio-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--electric-cyan);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: inline-block;
}

/* Process / How It Works */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  position: relative;
}

.step-number {
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  line-height: 1;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--border-active);
}

.faq-question {
  width: 100%;
  padding: 1.35rem 1.75rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  text-align: left;
}

.faq-question svg {
  color: var(--electric-cyan);
  transition: transform var(--transition-smooth);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 1.75rem;
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-bottom: 1.5rem;
}

/* Contact / Intake Form */
.intake-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--electric-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
}

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  margin-top: 0.5rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.checkbox-label:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-hover);
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--electric-cyan);
  width: 16px;
  height: 16px;
}

/* Call To Action Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(0, 112, 243, 0.15));
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), var(--glow-cyan);
}

/* Footer */
.footer {
  background: #050608;
  border-top: 1px solid var(--border-glass);
  padding: 4.5rem 0 2.5rem 0;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-list a {
  color: var(--text-secondary);
  font-size: 0.925rem;
}

.footer-links-list a:hover {
  color: var(--electric-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-glass);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

/* Responsive Media Queries */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .nav-actions {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
  .filter-grid {
    grid-template-columns: 1fr 1fr;
  }
  .case-study-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}