/* =============================================================================
   Enterprise Linux Health Dashboard - Official Product Website Stylesheet
   Design System: Deep Dark Glassmorphism, Vibrant Crimson Gradients, Modern Micro-Interactions
   Author: Prathap S (prathaps8675@gmail.com)
   ============================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Fira+Code:wght@400;500;600&display=swap');

:root {
  --bg-dark: #090D16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-glow: rgba(198, 29, 36, 0.4);

  --primary: #C61D24;
  --primary-glow: rgba(198, 29, 36, 0.5);
  --primary-gradient: linear-gradient(135deg, #E11D48 0%, #C61D24 50%, #9F1239 100%);
  --accent-cyan: #06B6D4;
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;
  --accent-purple: #8B5CF6;

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --font-main: 'Outfit', 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'Fira Code', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #1E1B4B 0%, #090D16 60%);
  min-height: 100vh;
}

.ambient-glow-1 {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(198, 29, 36, 0.25) 0%, rgba(99, 102, 241, 0.15) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-2 {
  position: absolute;
  top: 1400px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  filter: blur(100px);
  pointer-events: none;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.8);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 0;
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 20px var(--primary-glow);
}

.brand-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: contain;
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.4);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.brand-logo:hover .brand-img {
  transform: scale(1.06) rotate(-2deg);
  box-shadow: 0 6px 24px rgba(225, 29, 72, 0.65);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text-main);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(198, 29, 36, 0.7);
}

.btn-outline {
  background: var(--bg-glass);
  color: var(--text-main);
  border-color: var(--border-glass);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.hero {
  padding: 90px 0 60px;
  text-align: center;
  position: relative;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(198, 29, 36, 0.12);
  border: 1px solid rgba(198, 29, 36, 0.3);
  color: #F43F5E;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  background: linear-gradient(135deg, #F43F5E 0%, #FB7185 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 40px;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 60px;
}

.terminal-window {
  max-width: 860px;
  margin: 0 auto;
  background: #0B0F19;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  text-align: left;
}

.terminal-header {
  background: #151C2C;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }

.terminal-title {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #38BDF8;
  line-height: 1.7;
  overflow-x: auto;
}

.prompt { color: #F43F5E; }
.command { color: #F8FAFC; font-weight: 600; }
.output-success { color: #34D399; }
.output-info { color: #94A3B8; }

.section {
  padding: 50px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 32px;
}

.section-tag {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  backdrop-filter: blur(12px);
}

.compare-card.problem {
  border-color: rgba(239, 68, 68, 0.2);
}

.compare-card.solution {
  border-color: rgba(16, 185, 129, 0.3);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.05) 0%, rgba(15, 23, 42, 0.8) 100%);
  box-shadow: 0 0 40px rgba(16, 185, 129, 0.08);
}

.card-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.badge-problem { background: rgba(239, 68, 68, 0.15); color: #EF4444; }
.badge-solution { background: rgba(16, 185, 129, 0.15); color: #10B981; }

.compare-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.compare-list li i {
  flex-shrink: 0;
  margin-top: 3px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glass-glow);
  box-shadow: 0 20px 40px -15px rgba(198, 29, 36, 0.2);
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(198, 29, 36, 0.15);
  border: 1px solid rgba(198, 29, 36, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #F43F5E;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.os-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.os-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.25s ease;
}

.os-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.os-logo-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.os-logo-box img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.os-info h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.os-info span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.install-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}

.tab-btn {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active, .tab-btn:hover {
  background: var(--primary-gradient);
  color: white;
  border-color: transparent;
}

.install-box {
  background: #0B0F19;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}

.code-block {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #38BDF8;
  background: #060911;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item.active {
  border-color: rgba(198, 29, 36, 0.4);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.footer {
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 40px;
  background: #060911;
  text-align: center;
}

.footer-brand {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-contact {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.footer-contact a {
  color: #F43F5E;
  text-decoration: none;
  font-weight: 600;
}

.copyright {
  color: var(--text-dim);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  margin-top: 24px;
}

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .os-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Superdemo Interactive Loader & Player Frame */
.demo-launcher-card {
  max-width: 900px;
  margin: 0 auto;
  background: linear-gradient(145deg, rgba(15,23,42,0.85), rgba(30,41,59,0.65));
  border: 1px solid rgba(59,130,246,0.35);
  border-radius: 20px;
  padding: 40px 24px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 30px rgba(37,99,235,0.15);
  transition: all 0.3s ease;
}

.demo-launcher-card:hover {
  border-color: rgba(96,165,250,0.6);
  box-shadow: 0 20px 50px rgba(0,0,0,0.6), 0 0 45px rgba(37,99,235,0.25);
}

.demo-player-container {
  display: none;
  max-width: 1160px;
  margin: 0 auto;
  background: linear-gradient(145deg, rgba(15,23,42,0.95), rgba(30,41,59,0.8));
  border: 1px solid rgba(96,165,250,0.4);
  border-radius: 20px;
  padding: 14px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.7), 0 0 50px rgba(37,99,235,0.2);
  animation: fadeIn 0.35s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.demo-loader-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, #1E293B 0%, #0F172A 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 5;
  border-radius: 12px;
  transition: opacity 0.4s ease;
}

.demo-spinner {
  width: 44px;
  height: 44px;
  border: 4px solid rgba(59,130,246,0.2);
  border-top-color: #60A5FA;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Custom Modal Styles */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 7, 15, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  overflow-y: auto;
  padding: 20px 14px;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal-box {
  background: #0D1322;
  border: 1px solid rgba(96,165,250,0.3);
  border-radius: 18px;
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.8), 0 0 40px rgba(37,99,235,0.2);
  position: relative;
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.95) translateY(15px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: #CBD5E1;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  background: rgba(15,23,42,0.8);
  border: 1px solid rgba(255,255,255,0.12);
  color: #F8FAFC;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  border-color: #60A5FA;
  box-shadow: 0 0 0 3px rgba(96,165,250,0.2);
}

/* Printable Proforma Invoice Styles */
.invoice-sheet {
  background: #ffffff;
  color: #0F172A;
  padding: 32px;
  border-radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin-top: 20px;
  border: 1px solid #E2E8F0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  display: none;
}

@media print {
  body * {
    visibility: hidden;
  }
  #invoice-printable-area, #invoice-printable-area * {
    visibility: visible;
  }
  #invoice-printable-area {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 20px;
    background: #fff !important;
    color: #000 !important;
  }
}

/* Mobile Responsiveness & Compact UI */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .navbar {
    padding: 12px 0;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(9, 13, 22, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 20px 40px rgba(0,0,0,0.8);
  }

  .nav-links.mobile-open {
    display: flex;
  }

  .nav-container .btn-primary {
    display: none;
  }

  .hero {
    padding: 48px 0 36px;
  }

  .hero-title {
    font-size: 2rem;
    line-height: 1.25;
  }

  .hero-subtitle {
    font-size: 0.92rem;
    line-height: 1.55;
    margin-bottom: 24px;
  }

  .hero-ctas {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

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

  .grid-2, .grid-3, .os-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .section {
    padding: 48px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section-desc {
    font-size: 0.9rem;
    margin-bottom: 24px;
  }

  .feature-card {
    padding: 22px 18px;
  }

  .compare-card {
    padding: 22px 18px;
  }

  .install-box {
    padding: 20px 16px;
  }

  .install-tabs {
    flex-direction: column;
    gap: 6px;
  }

  .tab-btn {
    width: 100%;
    text-align: center;
    font-size: 0.85rem;
    padding: 10px 14px;
  }

  .code-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.82rem;
    word-break: break-all;
  }

  .code-block .copy-btn {
    align-self: flex-end;
  }

  .demo-launcher-card {
    padding: 28px 16px;
  }

  .modal-box {
    padding: 0;
    max-height: 95vh;
  }

  .modal-body {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.7rem;
  }

  .badge-pill {
    font-size: 0.72rem;
    padding: 4px 10px;
  }

  .pricing-card {
    padding: 20px 14px;
  }
}