/* ==========================================================================
   AVALON TECH LLC - Enterprise Systems Engineering & Tooling
   Style Sheet | Prefix: atl-
   Winter Haven, Florida | +1 (305) 289-4347 | info@avalontech.com
   ========================================================================== */

:root {
  --atl-primary: #0f172a;
  --atl-primary-dark: #090e1a;
  --atl-secondary: #1e293b;
  --atl-brand: #0284c7;
  --atl-brand-hover: #0369a1;
  --atl-brand-light: #e0f2fe;
  --atl-accent-cyan: #38bdf8;
  --atl-accent-emerald: #10b981;
  --atl-emerald-light: #ecfdf5;
  --atl-amber: #f59e0b;
  --atl-amber-light: #fef3c7;
  --atl-slate-50: #f8fafc;
  --atl-slate-100: #f1f5f9;
  --atl-slate-200: #e2e8f0;
  --atl-slate-300: #cbd5e1;
  --atl-slate-600: #475569;
  --atl-slate-700: #334155;
  --atl-slate-900: #0f172a;
  --atl-white: #ffffff;
  
  --atl-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --atl-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  
  --atl-max-width: 1240px;
  --atl-radius-sm: 4px;
  --atl-radius-md: 8px;
  --atl-radius-lg: 14px;
  --atl-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --atl-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --atl-shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.12);
  --atl-transition: all 0.2s ease-in-out;
}

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

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

body {
  font-family: var(--atl-font-sans);
  background-color: var(--atl-white);
  color: var(--atl-slate-700);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--atl-brand);
  text-decoration: none;
  transition: var(--atl-transition);
}

a:hover, a:focus-visible {
  color: var(--atl-brand-hover);
  text-decoration: underline;
}

/* Accessibility Skip Link */
.atl-skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--atl-primary);
  color: var(--atl-white);
  padding: 10px 18px;
  font-weight: 700;
  border-radius: var(--atl-radius-sm);
  z-index: 9999;
  transition: top 0.2s ease;
}

.atl-skip-link:focus {
  top: 15px;
}

/* Container */
.atl-container {
  width: 100%;
  max-width: var(--atl-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Top Utility Bar */
.atl-topbar {
  background-color: var(--atl-primary-dark);
  color: var(--atl-slate-300);
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 0;
}

.atl-topbar-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.atl-topbar-info {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.atl-topbar-info span, .atl-topbar-info a {
  color: var(--atl-slate-300);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.atl-topbar-info a:hover {
  color: var(--atl-accent-cyan);
  text-decoration: none;
}

.atl-badge-pulse {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.atl-pulse-dot {
  width: 6px;
  height: 6px;
  background-color: var(--atl-accent-emerald);
  border-radius: 50%;
  display: inline-block;
  animation: atlPulse 2s infinite;
}

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

/* Google Ads Compliance Non-Affiliation Strip */
.atl-disclaimer-strip {
  background-color: #f1f5f9;
  border-bottom: 1px solid var(--atl-slate-200);
  padding: 6px 0;
  font-size: 0.75rem;
  color: var(--atl-slate-600);
}

.atl-disclaimer-inner {
  display: flex;
  align-items: center;
  gap: 10px;
}

.atl-disclaimer-tag {
  background-color: #e2e8f0;
  color: var(--atl-slate-700);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  font-size: 0.6875rem;
  flex-shrink: 0;
}

/* Header & Navigation */
.atl-header {
  background-color: var(--atl-white);
  border-bottom: 1px solid var(--atl-slate-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--atl-shadow-sm);
}

.atl-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.atl-brand-wrap {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.atl-nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
}

.atl-nav-link {
  color: var(--atl-slate-700);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 8px 14px;
  border-radius: var(--atl-radius-sm);
  text-decoration: none;
  transition: var(--atl-transition);
}

.atl-nav-link:hover, .atl-nav-link.atl-active {
  color: var(--atl-brand);
  background-color: var(--atl-slate-100);
  text-decoration: none;
}

.atl-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.atl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 10px 20px;
  border-radius: var(--atl-radius-sm);
  cursor: pointer;
  transition: var(--atl-transition);
  text-decoration: none;
  border: 1px solid transparent;
}

.atl-btn-primary {
  background-color: var(--atl-brand);
  color: var(--atl-white);
}

.atl-btn-primary:hover, .atl-btn-primary:focus-visible {
  background-color: var(--atl-brand-hover);
  color: var(--atl-white);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.atl-btn-outline {
  background-color: transparent;
  color: var(--atl-slate-700);
  border-color: var(--atl-slate-300);
}

.atl-btn-outline:hover, .atl-btn-outline:focus-visible {
  background-color: var(--atl-slate-100);
  color: var(--atl-primary);
  border-color: var(--atl-slate-600);
  text-decoration: none;
}

.atl-btn-white {
  background-color: var(--atl-white);
  color: var(--atl-primary);
}

.atl-btn-white:hover {
  background-color: var(--atl-slate-100);
  text-decoration: none;
}

.atl-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--atl-slate-300);
  padding: 8px;
  border-radius: var(--atl-radius-sm);
  cursor: pointer;
  color: var(--atl-slate-700);
}

/* Hero Section (Asymmetric 62/38 Split) */
.atl-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: var(--atl-white);
  padding: 72px 0 84px;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--atl-brand);
}

.atl-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  align-items: center;
  gap: 48px;
}

.atl-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--atl-accent-cyan);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.atl-hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--atl-white);
}

.atl-hero-title span {
  color: var(--atl-accent-cyan);
}

.atl-hero-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--atl-slate-300);
  margin-bottom: 32px;
  max-width: 620px;
}

.atl-hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.atl-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
}

.atl-stat-item h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--atl-accent-cyan);
  line-height: 1.2;
}

.atl-stat-item p {
  font-size: 0.8125rem;
  color: var(--atl-slate-300);
}

/* Architecture Card on Hero Right */
.atl-hero-visual {
  width: 100%;
}

.atl-arch-card {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  border-radius: var(--atl-radius-lg);
  overflow: hidden;
}

/* Section Styling */
.atl-section {
  padding: 80px 0;
}

.atl-section-alt {
  background-color: var(--atl-slate-50);
  border-top: 1px solid var(--atl-slate-200);
  border-bottom: 1px solid var(--atl-slate-200);
}

.atl-section-header {
  max-width: 760px;
  margin-bottom: 54px;
}

.atl-section-header.atl-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.atl-eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--atl-brand);
  margin-bottom: 8px;
}

.atl-section-title {
  font-size: 2.125rem;
  font-weight: 800;
  color: var(--atl-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.atl-section-desc {
  font-size: 1.0625rem;
  color: var(--atl-slate-600);
  line-height: 1.65;
}

/* 4-Pillar Solutions Grid */
.atl-pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.atl-pillar-card {
  background-color: var(--atl-white);
  border: 1px solid var(--atl-slate-200);
  border-radius: var(--atl-radius-md);
  padding: 30px 24px;
  transition: var(--atl-transition);
  display: flex;
  flex-direction: column;
}

.atl-pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--atl-brand);
  box-shadow: var(--atl-shadow-md);
}

.atl-pillar-num {
  font-family: var(--atl-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--atl-brand);
  background-color: var(--atl-brand-light);
  width: fit-content;
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.atl-pillar-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--atl-primary);
  margin-bottom: 12px;
  line-height: 1.35;
}

.atl-pillar-card p {
  font-size: 0.9375rem;
  color: var(--atl-slate-600);
  margin-bottom: 20px;
  flex-grow: 1;
}

.atl-pillar-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--atl-brand);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Interactive Virtual Infrastructure Health Configurator */
.atl-calc-box {
  background-color: var(--atl-white);
  border: 1px solid var(--atl-slate-200);
  border-radius: var(--atl-radius-lg);
  box-shadow: var(--atl-shadow-md);
  overflow: hidden;
}

.atl-calc-header {
  background-color: var(--atl-primary);
  color: var(--atl-white);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.atl-calc-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.atl-calc-body {
  padding: 36px 32px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
}

.atl-form-group {
  margin-bottom: 22px;
}

.atl-form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--atl-primary);
  margin-bottom: 8px;
}

.atl-range-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.atl-range-slider {
  flex-grow: 1;
  accent-color: var(--atl-brand);
  height: 6px;
  cursor: pointer;
}

.atl-range-val {
  font-family: var(--atl-font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--atl-brand);
  background-color: var(--atl-brand-light);
  padding: 4px 10px;
  border-radius: 4px;
  min-width: 65px;
  text-align: center;
}

.atl-select, .atl-input, .atl-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--atl-slate-300);
  border-radius: var(--atl-radius-sm);
  font-family: var(--atl-font-sans);
  font-size: 0.9375rem;
  color: var(--atl-primary);
  background-color: var(--atl-white);
  transition: var(--atl-transition);
}

.atl-select:focus, .atl-input:focus, .atl-textarea:focus {
  outline: none;
  border-color: var(--atl-brand);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.atl-calc-results {
  background-color: var(--atl-slate-50);
  border: 1px solid var(--atl-slate-200);
  border-radius: var(--atl-radius-md);
  padding: 24px;
}

.atl-result-header {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--atl-slate-600);
  margin-bottom: 16px;
  border-bottom: 1px solid var(--atl-slate-200);
  padding-bottom: 8px;
}

.atl-result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed var(--atl-slate-200);
  font-size: 0.875rem;
}

.atl-result-val {
  font-weight: 700;
  color: var(--atl-primary);
  font-family: var(--atl-font-mono);
}

.atl-reclaim-highlight {
  margin-top: 18px;
  padding: 14px;
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: var(--atl-radius-sm);
}

.atl-reclaim-highlight strong {
  color: #065f46;
  font-size: 1.125rem;
}

/* Specifications Table */
.atl-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--atl-slate-200);
  border-radius: var(--atl-radius-md);
  box-shadow: var(--atl-shadow-sm);
  background-color: var(--atl-white);
}

.atl-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9375rem;
}

.atl-table th {
  background-color: var(--atl-slate-100);
  color: var(--atl-primary);
  font-weight: 700;
  padding: 14px 20px;
  border-bottom: 2px solid var(--atl-slate-200);
}

.atl-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--atl-slate-200);
  color: var(--atl-slate-700);
}

.atl-table tr:hover td {
  background-color: #f8fafc;
}

.atl-badge-cell {
  font-family: var(--atl-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background-color: #e0f2fe;
  color: #0369a1;
  padding: 2px 8px;
  border-radius: 4px;
}

/* Contact & Inquiry Layout */
.atl-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
}

.atl-contact-info-card {
  background-color: var(--atl-primary);
  color: var(--atl-white);
  padding: 40px;
  border-radius: var(--atl-radius-lg);
}

.atl-contact-info-card h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.atl-contact-info-card p {
  color: var(--atl-slate-300);
  margin-bottom: 28px;
  font-size: 0.9375rem;
}

.atl-contact-details {
  list-style: none;
  margin-bottom: 32px;
}

.atl-contact-details li {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
}

.atl-contact-details .atl-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--atl-accent-cyan);
  font-weight: 700;
}

.atl-contact-details .atl-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--atl-white);
}

.atl-contact-details a.atl-val {
  color: var(--atl-white);
}

.atl-contact-details a.atl-val:hover {
  color: var(--atl-accent-cyan);
}

.atl-form-card {
  background-color: var(--atl-white);
  border: 1px solid var(--atl-slate-200);
  border-radius: var(--atl-radius-lg);
  padding: 40px;
  box-shadow: var(--atl-shadow-md);
}

.atl-form-card h3 {
  font-size: 1.5rem;
  color: var(--atl-primary);
  margin-bottom: 8px;
}

.atl-form-card p {
  color: var(--atl-slate-600);
  margin-bottom: 24px;
  font-size: 0.9375rem;
}

.atl-form-status {
  padding: 12px 16px;
  border-radius: var(--atl-radius-sm);
  margin-bottom: 20px;
  display: none;
  font-size: 0.875rem;
}

.atl-form-status.atl-success {
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  display: block;
}

.atl-form-status.atl-error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
  display: block;
}

/* Footer */
.atl-footer {
  background-color: var(--atl-primary-dark);
  color: var(--atl-slate-300);
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.atl-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.atl-footer-col h4 {
  color: var(--atl-white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.atl-footer-col p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--atl-slate-300);
  margin-bottom: 16px;
}

.atl-footer-links {
  list-style: none;
}

.atl-footer-links li {
  margin-bottom: 10px;
}

.atl-footer-links a {
  color: var(--atl-slate-300);
  font-size: 0.875rem;
  text-decoration: none;
}

.atl-footer-links a:hover {
  color: var(--atl-accent-cyan);
  text-decoration: underline;
}

.atl-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  font-size: 0.8125rem;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.atl-footer-legal-notice {
  font-size: 0.75rem;
  line-height: 1.5;
  color: #64748b;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .atl-hero-grid {
    grid-template-columns: 1fr;
  }
  .atl-pillar-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .atl-calc-body {
    grid-template-columns: 1fr;
  }
  .atl-contact-grid {
    grid-template-columns: 1fr;
  }
  .atl-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .atl-mobile-toggle {
    display: block;
  }
  .atl-nav-list {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background-color: var(--atl-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--atl-shadow-lg);
    border-bottom: 1px solid var(--atl-slate-200);
  }
  .atl-nav-list.atl-open {
    display: flex;
  }
  .atl-header-actions {
    display: none;
  }
  .atl-hero-title {
    font-size: 2rem;
  }
  .atl-hero-stats {
    grid-template-columns: 1fr;
  }
  .atl-pillar-grid {
    grid-template-columns: 1fr;
  }
  .atl-footer-grid {
    grid-template-columns: 1fr;
  }
  .atl-topbar-flex {
    flex-direction: column;
    align-items: flex-start;
  }
}