/* SICStus Prolog - Bold Modern Design */

/* ============================================
   Design Tokens
   ============================================ */
:root {
  /* Colors - Bold red from logo */
  --color-primary: #E31937;
  --color-primary-dark: #B8142C;
  --color-primary-light: #FEE8EB;
  --color-primary-glow: rgba(227, 25, 55, 0.15);

  --color-black: #0f0f0f;
  --color-gray-900: #1a1a1a;
  --color-gray-800: #262626;
  --color-gray-700: #404040;
  --color-gray-600: #525252;
  --color-gray-500: #737373;
  --color-gray-400: #a3a3a3;
  --color-gray-300: #d4d4d4;
  --color-gray-200: #e5e5e5;
  --color-gray-100: #f5f5f5;
  --color-gray-50: #fafafa;
  --color-white: #ffffff;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --max-width: 1200px;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 12px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 12px 40px rgb(0 0 0 / 0.12);
  --shadow-xl: 0 24px 60px rgb(0 0 0 / 0.15);
  --shadow-glow: 0 0 60px var(--color-primary-glow);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-20) 0;
}

/* ============================================
   Header
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-black);
}

.logo img {
  height: 2.25rem;
}

.logo:hover {
  color: var(--color-black);
}

.nav { display: none; }

.nav-list {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gray-600);
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s;
}

.nav-link:hover {
  color: var(--color-black);
}

.nav-link:hover::after {
  width: 100%;
}

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

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-gray-700);
}

@media (min-width: 768px) {
  .nav { display: block; }
  .menu-toggle { display: none; }
}

/* ============================================
   Hero - Bold Split Design
   ============================================ */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: var(--color-black);
  overflow: hidden;
}

/* Dramatic diagonal red accent */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: var(--color-primary);
  transform: rotate(-12deg);
  opacity: 0.9;
}

/* Subtle grid pattern */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
  padding: var(--space-8) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-8);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
  color: white;
  font-size: clamp(3rem, 6vw, 5rem);
  margin-bottom: var(--space-6);
  text-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.hero-highlight {
  color: var(--color-primary);
  position: relative;
}

/* Red text should be white on the red diagonal */
@media (min-width: 1024px) {
  .hero-highlight {
    color: white;
    background: var(--color-primary);
    padding: 0 0.2em;
    margin: 0 -0.2em;
  }
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(227, 25, 55, 0.4);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(227, 25, 55, 0.5);
}

.btn-secondary {
  background: white;
  color: var(--color-black);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: var(--color-gray-50);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: white;
}

.btn-outline:hover {
  background: white;
  border-color: white;
  color: var(--color-black);
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: 1.1rem;
}

/* ============================================
   Stats Bar
   ============================================ */
.stats-bar {
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  padding: var(--space-6) 0;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
  }
}

.stat-item {
  text-align: center;
  padding: var(--space-4);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-1);
}

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

/* ============================================
   Feature Cards - Bold Style
   ============================================ */
.features-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.card {
  position: relative;
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--color-gray-200);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
  box-shadow: 0 8px 20px rgba(227, 25, 55, 0.3);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.card p {
  color: var(--color-gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-gray-600);
}

/* Red underline accent */
.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  margin: var(--space-4) auto 0;
  border-radius: 2px;
}

/* ============================================
   Awards Section
   ============================================ */
.awards-section {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, white 100%);
}

.awards-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.award-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-black);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.award-badge:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.award-badge::before {
  content: '🏆';
}

/* ============================================
   Customers Section
   ============================================ */
.customer-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-gray-200);
  transition: all 0.3s;
}

.customer-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.customer-card h3 {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  background: var(--color-black);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150%;
  height: 100%;
  background: radial-gradient(ellipse at center top, var(--color-primary-glow) 0%, transparent 70%);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  color: white;
}

.cta-section h2::after {
  background: var(--color-primary);
}

.cta-section p {
  color: var(--color-gray-400);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-black);
  color: var(--color-gray-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand p {
  margin-top: var(--space-4);
  font-size: 0.9rem;
}

.footer h4 {
  color: white;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--color-gray-400);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-800);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: white;
}

.badge-success {
  background: #22c55e;
}

.badge-dark {
  background: var(--color-gray-800);
}

/* Version badge */
.version-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.version-badge strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* ============================================
   Utilities
   ============================================ */
.text-center { text-align: center; }
.text-muted { color: var(--color-gray-500); }
.text-primary { color: var(--color-primary); }

.bg-gray { background: var(--color-gray-50); }
.bg-dark { background: var(--color-black); color: white; }

.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }

/* Page header for sub-pages */
.page-header {
  background: var(--color-black);
  padding: var(--space-16) 0;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
}

.page-header h1 {
  color: white;
  margin-bottom: var(--space-2);
}

.page-header p {
  color: var(--color-gray-400);
  font-size: 1.125rem;
  margin: 0;
}