/* ==========================================================================
   BigSols.com - High-Performance Mobile-First Dark Theme Stylesheet
   ========================================================================== */

:root {
  --bg-main: #060911;
  --bg-card: #0D1322;
  --bg-card-hover: #131B30;
  --bg-glass: rgba(13, 19, 34, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(0, 242, 254, 0.3);
  
  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  
  --accent-cyan: #00F2FE;
  --accent-blue: #4FACFE;
  --accent-indigo: #6366F1;
  --accent-green: #10B981;
  --accent-orange: #F59E0B;
  
  --gradient-primary: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
  --gradient-accent: linear-gradient(135deg, #6366F1 0%, #A855F7 100%);
  --gradient-dark: linear-gradient(180deg, #0B101D 0%, #060911 100%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 242, 254, 0.15);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base Reset & Security --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: 70px; /* Space for mobile sticky CTA bar */
}

/* User Selection & Copy Protection Safeguard */
.no-copy {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: none;
}

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

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulseDot 1.8s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* --- Navigation Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #060911;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #060911;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
}

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

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 340px;
  height: 100vh;
  background: var(--bg-card);
  z-index: 1001;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.8);
  transition: var(--transition-smooth);
  border-left: 1px solid var(--border-color);
}

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

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.drawer-close {
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.drawer-nav a {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.drawer-nav a.active, .drawer-nav a:hover {
  color: var(--accent-cyan);
}

/* --- Hero Section --- */
.hero-section {
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, rgba(99, 102, 241, 0.08) 50%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content {
  text-align: center;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin: 1.2rem 0;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  justify-content: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

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

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Terminal Hero Graphic */
.hero-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  background: rgba(0, 0, 0, 0.4);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }

.terminal-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #A7F3D0;
  line-height: 1.7;
}

.cmd-line {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.cmd-prompt { color: var(--accent-cyan); }
.cmd-text { color: var(--text-primary); }
.cmd-output { color: var(--text-secondary); padding-left: 1rem; }

/* --- Section Formatting --- */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

.section-subtitle {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* --- Services & Products Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card.featured {
  border-color: rgba(0, 242, 254, 0.4);
  background: linear-gradient(180deg, rgba(0, 242, 254, 0.04) 0%, var(--bg-card) 100%);
}

.service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.service-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

/* --- Interactive Tool Modal --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.75rem;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.modal-body {
  margin-top: 1rem;
}

.modal-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.modal-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.modal-feature-list svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

/* --- Interactive Instant Quote Estimator Widget --- */
.estimator-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
}

.estimator-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.option-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.select-input, .text-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: var(--transition-fast);
}

.select-input:focus, .text-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.estimator-result {
  background: rgba(0, 242, 254, 0.05);
  border: 1px dashed var(--accent-cyan);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  margin-top: 1.5rem;
}

.estimate-price {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* --- Lead Contact Form --- */
.contact-section {
  background: linear-gradient(180deg, var(--bg-main) 0%, #0A0F1D 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group textarea {
  width: 100%;
  min-height: 110px;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  resize: vertical;
}

.form-group textarea:focus {
  border-color: var(--accent-cyan);
}

.alert-box {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  margin-bottom: 1rem;
  display: none;
}

.alert-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--accent-green);
  color: #6EE7B7;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #EF4444;
  color: #FCA5A5;
}

/* --- Mobile Bottom Sticky Action Bar --- */
.mobile-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: rgba(13, 19, 34, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 1rem;
  z-index: 999;
}

.bottom-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.bottom-action-btn.primary {
  color: var(--accent-cyan);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0 80px;
  background: #04070D;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}

/* --- Responsive Breakpoints (Tablet & Desktop) --- */
@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
  
  .mobile-bottom-bar {
    display: none;
  }

  .mobile-toggle {
    display: none;
  }

  .nav-links {
    display: flex;
  }

  .hero-title {
    font-size: 3.4rem;
  }

  .hero-subtitle {
    font-size: 1.15rem;
  }

  .hero-ctas {
    flex-direction: row;
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-content {
    text-align: left;
  }

  .hero-stats {
    justify-content: flex-start;
  }

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

  .estimator-options {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}