/* ============================================================
   Uryx Technologies -- Main Stylesheet
   Consolidated from 11 files into 1.
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-primary: #4F46E5;
  --color-primary-light: #818CF8;
  --color-primary-dark: #3730A3;
  --color-bg-dark: #0F172A;
  --color-bg-light: #F8FAFC;
  --color-surface: #1E293B;
  --color-surface-hover: #273548;
  --color-text-primary: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-dark: #1E293B;
  --color-text-dark-secondary: #64748B;
  --color-accent: #10B981;
  --color-accent-warm: #F59E0B;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-card-bg: rgba(30, 41, 59, 0.6);

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 6rem 0;
  --container-max: 1200px;

  /* Transitions */
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* --- Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Skip Link (A11y) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 0 0 0.5rem 0.5rem;
  font-weight: 600;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* --- Navigation --- */
.navbar {
  background: rgba(15, 23, 42, 0.85) !important;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  transition: background var(--transition-base);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand img {
  width: 40px;
  height: auto;
}

.navbar .nav-link {
  color: var(--color-text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem !important;
  border-radius: 0.375rem;
  transition: all var(--transition-base);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--color-text-primary) !important;
  background: rgba(255, 255, 255, 0.05);
}

.navbar-toggler {
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.6rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.4);
}

.navbar-toggler-icon {
  filter: invert(1);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1a0a3e 50%, #2d1b69 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 2rem;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  text-align: center;
  animation: bounce 2s infinite;
}

.hero-scroll-indicator svg {
  display: block;
  margin: 0.5rem auto 0;
  width: 24px;
  height: 24px;
  stroke: var(--color-text-secondary);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* --- Buttons --- */
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary-custom:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.35);
}

.btn-primary-custom:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.btn-outline-custom {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--color-primary-light);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid var(--color-primary);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-outline-custom:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-custom:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* --- Section Base --- */
.section {
  padding: var(--section-padding);
}

.section-dark {
  background-color: var(--color-bg-dark);
}

.section-surface {
  background-color: var(--color-surface);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 1rem;
  color: var(--color-text-primary);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-light);
  margin-bottom: 0.75rem;
}

/* --- About Section --- */
.about-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 2.5rem 2rem;
  transition: all var(--transition-base);
  overflow: hidden;
  position: relative;
}

.service-card:hover {
  border-color: rgba(79, 70, 229, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-text-primary);
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-card-image {
  width: 100%;
  height: 250px;
  border-radius: 0.75rem;
  object-fit: cover;
  margin-top: auto;
}

/* --- Product Cards --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-card:hover {
  border-color: rgba(79, 70, 229, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.product-card-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 1.5rem;
}

.product-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
}

.product-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* --- Kronox Section --- */
.kronox-section {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-dark) 100%);
}

.kronox-content {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.kronox-logo {
  flex-shrink: 0;
}

.kronox-text h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.kronox-text p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

/* Kronox Triangle SVG */
.kronox-triangle {
  width: 300px;
  height: 300px;
  animation: triangle-float 4s ease-in-out infinite;
}

.kronox-triangle .cls-1 {
  fill: var(--color-primary);
  animation: kronox-color-1 4s ease infinite;
}

.kronox-triangle .cls-2 {
  fill: var(--color-primary-light);
  animation: kronox-color-2 4s ease infinite;
}

.kronox-triangle .cls-3 {
  fill: var(--color-accent);
  animation: kronox-color-3 4s ease infinite;
}

@keyframes triangle-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(12px); }
}

@keyframes kronox-color-1 {
  0% { fill: var(--color-primary); }
  33% { fill: var(--color-primary-light); }
  66% { fill: var(--color-accent); }
  100% { fill: var(--color-primary); }
}

@keyframes kronox-color-2 {
  0% { fill: var(--color-primary-light); }
  33% { fill: var(--color-accent); }
  66% { fill: var(--color-primary); }
  100% { fill: var(--color-primary-light); }
}

@keyframes kronox-color-3 {
  0% { fill: var(--color-accent); }
  33% { fill: var(--color-primary); }
  66% { fill: var(--color-primary-light); }
  100% { fill: var(--color-accent); }
}

/* --- AI Detail Sections --- */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.ai-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 2.5rem 2rem;
  transition: all var(--transition-base);
}

.ai-card:hover {
  border-color: rgba(79, 70, 229, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.ai-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.ai-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.ai-card-image {
  width: 100%;
  height: 350px;
  border-radius: 0.75rem;
  object-fit: cover;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.footer-brand img {
  width: 36px;
  height: auto;
}

.footer-copyright {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.contact-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.contact-card h4 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary-light);
}

.contact-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  line-height: 1.5;
}

.contact-card strong {
  color: var(--color-text-primary);
}

/* --- Responsive --- */

/* Tablets */
@media (max-width: 991.98px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .kronox-content {
    flex-direction: column;
    text-align: center;
  }

  .kronox-triangle {
    width: 200px;
    height: 200px;
  }
}

/* Mobile */
@media (max-width: 767.98px) {
  :root {
    --section-padding: 4rem 0;
  }

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

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .service-card {
    padding: 1.5rem;
  }

  .service-card-image {
    height: 180px;
  }

  .ai-card-image {
    height: 220px;
  }

  .footer-grid {
    text-align: center;
  }

  .contact-card {
    margin-bottom: 1rem;
  }
}

/* Small mobile */
@media (max-width: 400px) {
  .hero-content {
    padding: 1rem;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }
}

/* --- Focus Visible (A11y) --- */
*:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* --- Utilities --- */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}